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adding vendor

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Craig Peterson
2016-12-16 13:14:49 -07:00
parent 1ea80d5347
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Copyright 2014 Google Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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vendor/cloud.google.com/go/compute/metadata/metadata.go generated vendored Normal file
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// Copyright 2014 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package metadata provides access to Google Compute Engine (GCE)
// metadata and API service accounts.
//
// This package is a wrapper around the GCE metadata service,
// as documented at https://developers.google.com/compute/docs/metadata.
package metadata // import "cloud.google.com/go/compute/metadata"
import (
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/url"
"os"
"runtime"
"strings"
"sync"
"time"
"golang.org/x/net/context"
"golang.org/x/net/context/ctxhttp"
"cloud.google.com/go/internal"
)
const (
// metadataIP is the documented metadata server IP address.
metadataIP = "169.254.169.254"
// metadataHostEnv is the environment variable specifying the
// GCE metadata hostname. If empty, the default value of
// metadataIP ("169.254.169.254") is used instead.
// This is variable name is not defined by any spec, as far as
// I know; it was made up for the Go package.
metadataHostEnv = "GCE_METADATA_HOST"
)
type cachedValue struct {
k string
trim bool
mu sync.Mutex
v string
}
var (
projID = &cachedValue{k: "project/project-id", trim: true}
projNum = &cachedValue{k: "project/numeric-project-id", trim: true}
instID = &cachedValue{k: "instance/id", trim: true}
)
var (
metaClient = &http.Client{
Transport: &internal.Transport{
Base: &http.Transport{
Dial: (&net.Dialer{
Timeout: 2 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
ResponseHeaderTimeout: 2 * time.Second,
},
},
}
subscribeClient = &http.Client{
Transport: &internal.Transport{
Base: &http.Transport{
Dial: (&net.Dialer{
Timeout: 2 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
},
},
}
)
// NotDefinedError is returned when requested metadata is not defined.
//
// The underlying string is the suffix after "/computeMetadata/v1/".
//
// This error is not returned if the value is defined to be the empty
// string.
type NotDefinedError string
func (suffix NotDefinedError) Error() string {
return fmt.Sprintf("metadata: GCE metadata %q not defined", string(suffix))
}
// Get returns a value from the metadata service.
// The suffix is appended to "http://${GCE_METADATA_HOST}/computeMetadata/v1/".
//
// If the GCE_METADATA_HOST environment variable is not defined, a default of
// 169.254.169.254 will be used instead.
//
// If the requested metadata is not defined, the returned error will
// be of type NotDefinedError.
func Get(suffix string) (string, error) {
val, _, err := getETag(metaClient, suffix)
return val, err
}
// getETag returns a value from the metadata service as well as the associated
// ETag using the provided client. This func is otherwise equivalent to Get.
func getETag(client *http.Client, suffix string) (value, etag string, err error) {
// Using a fixed IP makes it very difficult to spoof the metadata service in
// a container, which is an important use-case for local testing of cloud
// deployments. To enable spoofing of the metadata service, the environment
// variable GCE_METADATA_HOST is first inspected to decide where metadata
// requests shall go.
host := os.Getenv(metadataHostEnv)
if host == "" {
// Using 169.254.169.254 instead of "metadata" here because Go
// binaries built with the "netgo" tag and without cgo won't
// know the search suffix for "metadata" is
// ".google.internal", and this IP address is documented as
// being stable anyway.
host = metadataIP
}
url := "http://" + host + "/computeMetadata/v1/" + suffix
req, _ := http.NewRequest("GET", url, nil)
req.Header.Set("Metadata-Flavor", "Google")
res, err := client.Do(req)
if err != nil {
return "", "", err
}
defer res.Body.Close()
if res.StatusCode == http.StatusNotFound {
return "", "", NotDefinedError(suffix)
}
if res.StatusCode != 200 {
return "", "", fmt.Errorf("status code %d trying to fetch %s", res.StatusCode, url)
}
all, err := ioutil.ReadAll(res.Body)
if err != nil {
return "", "", err
}
return string(all), res.Header.Get("Etag"), nil
}
func getTrimmed(suffix string) (s string, err error) {
s, err = Get(suffix)
s = strings.TrimSpace(s)
return
}
func (c *cachedValue) get() (v string, err error) {
defer c.mu.Unlock()
c.mu.Lock()
if c.v != "" {
return c.v, nil
}
if c.trim {
v, err = getTrimmed(c.k)
} else {
v, err = Get(c.k)
}
if err == nil {
c.v = v
}
return
}
var (
onGCEOnce sync.Once
onGCE bool
)
// OnGCE reports whether this process is running on Google Compute Engine.
func OnGCE() bool {
onGCEOnce.Do(initOnGCE)
return onGCE
}
func initOnGCE() {
onGCE = testOnGCE()
}
func testOnGCE() bool {
// The user explicitly said they're on GCE, so trust them.
if os.Getenv(metadataHostEnv) != "" {
return true
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
resc := make(chan bool, 2)
// Try two strategies in parallel.
// See https://github.com/GoogleCloudPlatform/google-cloud-go/issues/194
go func() {
res, err := ctxhttp.Get(ctx, metaClient, "http://"+metadataIP)
if err != nil {
resc <- false
return
}
defer res.Body.Close()
resc <- res.Header.Get("Metadata-Flavor") == "Google"
}()
go func() {
addrs, err := net.LookupHost("metadata.google.internal")
if err != nil || len(addrs) == 0 {
resc <- false
return
}
resc <- strsContains(addrs, metadataIP)
}()
tryHarder := systemInfoSuggestsGCE()
if tryHarder {
res := <-resc
if res {
// The first strategy succeeded, so let's use it.
return true
}
// Wait for either the DNS or metadata server probe to
// contradict the other one and say we are running on
// GCE. Give it a lot of time to do so, since the system
// info already suggests we're running on a GCE BIOS.
timer := time.NewTimer(5 * time.Second)
defer timer.Stop()
select {
case res = <-resc:
return res
case <-timer.C:
// Too slow. Who knows what this system is.
return false
}
}
// There's no hint from the system info that we're running on
// GCE, so use the first probe's result as truth, whether it's
// true or false. The goal here is to optimize for speed for
// users who are NOT running on GCE. We can't assume that
// either a DNS lookup or an HTTP request to a blackholed IP
// address is fast. Worst case this should return when the
// metaClient's Transport.ResponseHeaderTimeout or
// Transport.Dial.Timeout fires (in two seconds).
return <-resc
}
// systemInfoSuggestsGCE reports whether the local system (without
// doing network requests) suggests that we're running on GCE. If this
// returns true, testOnGCE tries a bit harder to reach its metadata
// server.
func systemInfoSuggestsGCE() bool {
if runtime.GOOS != "linux" {
// We don't have any non-Linux clues available, at least yet.
return false
}
slurp, _ := ioutil.ReadFile("/sys/class/dmi/id/product_name")
name := strings.TrimSpace(string(slurp))
return name == "Google" || name == "Google Compute Engine"
}
// Subscribe subscribes to a value from the metadata service.
// The suffix is appended to "http://${GCE_METADATA_HOST}/computeMetadata/v1/".
// The suffix may contain query parameters.
//
// Subscribe calls fn with the latest metadata value indicated by the provided
// suffix. If the metadata value is deleted, fn is called with the empty string
// and ok false. Subscribe blocks until fn returns a non-nil error or the value
// is deleted. Subscribe returns the error value returned from the last call to
// fn, which may be nil when ok == false.
func Subscribe(suffix string, fn func(v string, ok bool) error) error {
const failedSubscribeSleep = time.Second * 5
// First check to see if the metadata value exists at all.
val, lastETag, err := getETag(subscribeClient, suffix)
if err != nil {
return err
}
if err := fn(val, true); err != nil {
return err
}
ok := true
if strings.ContainsRune(suffix, '?') {
suffix += "&wait_for_change=true&last_etag="
} else {
suffix += "?wait_for_change=true&last_etag="
}
for {
val, etag, err := getETag(subscribeClient, suffix+url.QueryEscape(lastETag))
if err != nil {
if _, deleted := err.(NotDefinedError); !deleted {
time.Sleep(failedSubscribeSleep)
continue // Retry on other errors.
}
ok = false
}
lastETag = etag
if err := fn(val, ok); err != nil || !ok {
return err
}
}
}
// ProjectID returns the current instance's project ID string.
func ProjectID() (string, error) { return projID.get() }
// NumericProjectID returns the current instance's numeric project ID.
func NumericProjectID() (string, error) { return projNum.get() }
// InternalIP returns the instance's primary internal IP address.
func InternalIP() (string, error) {
return getTrimmed("instance/network-interfaces/0/ip")
}
// ExternalIP returns the instance's primary external (public) IP address.
func ExternalIP() (string, error) {
return getTrimmed("instance/network-interfaces/0/access-configs/0/external-ip")
}
// Hostname returns the instance's hostname. This will be of the form
// "<instanceID>.c.<projID>.internal".
func Hostname() (string, error) {
return getTrimmed("instance/hostname")
}
// InstanceTags returns the list of user-defined instance tags,
// assigned when initially creating a GCE instance.
func InstanceTags() ([]string, error) {
var s []string
j, err := Get("instance/tags")
if err != nil {
return nil, err
}
if err := json.NewDecoder(strings.NewReader(j)).Decode(&s); err != nil {
return nil, err
}
return s, nil
}
// InstanceID returns the current VM's numeric instance ID.
func InstanceID() (string, error) {
return instID.get()
}
// InstanceName returns the current VM's instance ID string.
func InstanceName() (string, error) {
host, err := Hostname()
if err != nil {
return "", err
}
return strings.Split(host, ".")[0], nil
}
// Zone returns the current VM's zone, such as "us-central1-b".
func Zone() (string, error) {
zone, err := getTrimmed("instance/zone")
// zone is of the form "projects/<projNum>/zones/<zoneName>".
if err != nil {
return "", err
}
return zone[strings.LastIndex(zone, "/")+1:], nil
}
// InstanceAttributes returns the list of user-defined attributes,
// assigned when initially creating a GCE VM instance. The value of an
// attribute can be obtained with InstanceAttributeValue.
func InstanceAttributes() ([]string, error) { return lines("instance/attributes/") }
// ProjectAttributes returns the list of user-defined attributes
// applying to the project as a whole, not just this VM. The value of
// an attribute can be obtained with ProjectAttributeValue.
func ProjectAttributes() ([]string, error) { return lines("project/attributes/") }
func lines(suffix string) ([]string, error) {
j, err := Get(suffix)
if err != nil {
return nil, err
}
s := strings.Split(strings.TrimSpace(j), "\n")
for i := range s {
s[i] = strings.TrimSpace(s[i])
}
return s, nil
}
// InstanceAttributeValue returns the value of the provided VM
// instance attribute.
//
// If the requested attribute is not defined, the returned error will
// be of type NotDefinedError.
//
// InstanceAttributeValue may return ("", nil) if the attribute was
// defined to be the empty string.
func InstanceAttributeValue(attr string) (string, error) {
return Get("instance/attributes/" + attr)
}
// ProjectAttributeValue returns the value of the provided
// project attribute.
//
// If the requested attribute is not defined, the returned error will
// be of type NotDefinedError.
//
// ProjectAttributeValue may return ("", nil) if the attribute was
// defined to be the empty string.
func ProjectAttributeValue(attr string) (string, error) {
return Get("project/attributes/" + attr)
}
// Scopes returns the service account scopes for the given account.
// The account may be empty or the string "default" to use the instance's
// main account.
func Scopes(serviceAccount string) ([]string, error) {
if serviceAccount == "" {
serviceAccount = "default"
}
return lines("instance/service-accounts/" + serviceAccount + "/scopes")
}
func strsContains(ss []string, s string) bool {
for _, v := range ss {
if v == s {
return true
}
}
return false
}

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vendor/cloud.google.com/go/internal/cloud.go generated vendored Normal file
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// Copyright 2014 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package internal provides support for the cloud packages.
//
// Users should not import this package directly.
package internal
import (
"fmt"
"net/http"
)
const userAgent = "gcloud-golang/0.1"
// Transport is an http.RoundTripper that appends Google Cloud client's
// user-agent to the original request's user-agent header.
type Transport struct {
// TODO(bradfitz): delete internal.Transport. It's too wrappy for what it does.
// Do User-Agent some other way.
// Base is the actual http.RoundTripper
// requests will use. It must not be nil.
Base http.RoundTripper
}
// RoundTrip appends a user-agent to the existing user-agent
// header and delegates the request to the base http.RoundTripper.
func (t *Transport) RoundTrip(req *http.Request) (*http.Response, error) {
req = cloneRequest(req)
ua := req.Header.Get("User-Agent")
if ua == "" {
ua = userAgent
} else {
ua = fmt.Sprintf("%s %s", ua, userAgent)
}
req.Header.Set("User-Agent", ua)
return t.Base.RoundTrip(req)
}
// cloneRequest returns a clone of the provided *http.Request.
// The clone is a shallow copy of the struct and its Header map.
func cloneRequest(r *http.Request) *http.Request {
// shallow copy of the struct
r2 := new(http.Request)
*r2 = *r
// deep copy of the Header
r2.Header = make(http.Header)
for k, s := range r.Header {
r2.Header[k] = s
}
return r2
}

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vendor/github.com/golang/protobuf/LICENSE generated vendored Normal file
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Go support for Protocol Buffers - Google's data interchange format
Copyright 2010 The Go Authors. All rights reserved.
https://github.com/golang/protobuf
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

43
vendor/github.com/golang/protobuf/proto/Makefile generated vendored Normal file
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# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
install:
go install
test: install generate-test-pbs
go test
generate-test-pbs:
make install
make -C testdata
protoc --go_out=Mtestdata/test.proto=github.com/golang/protobuf/proto/testdata:. proto3_proto/proto3.proto
make

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vendor/github.com/golang/protobuf/proto/clone.go generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Protocol buffer deep copy and merge.
// TODO: RawMessage.
package proto
import (
"log"
"reflect"
"strings"
)
// Clone returns a deep copy of a protocol buffer.
func Clone(pb Message) Message {
in := reflect.ValueOf(pb)
if in.IsNil() {
return pb
}
out := reflect.New(in.Type().Elem())
// out is empty so a merge is a deep copy.
mergeStruct(out.Elem(), in.Elem())
return out.Interface().(Message)
}
// Merge merges src into dst.
// Required and optional fields that are set in src will be set to that value in dst.
// Elements of repeated fields will be appended.
// Merge panics if src and dst are not the same type, or if dst is nil.
func Merge(dst, src Message) {
in := reflect.ValueOf(src)
out := reflect.ValueOf(dst)
if out.IsNil() {
panic("proto: nil destination")
}
if in.Type() != out.Type() {
// Explicit test prior to mergeStruct so that mistyped nils will fail
panic("proto: type mismatch")
}
if in.IsNil() {
// Merging nil into non-nil is a quiet no-op
return
}
mergeStruct(out.Elem(), in.Elem())
}
func mergeStruct(out, in reflect.Value) {
sprop := GetProperties(in.Type())
for i := 0; i < in.NumField(); i++ {
f := in.Type().Field(i)
if strings.HasPrefix(f.Name, "XXX_") {
continue
}
mergeAny(out.Field(i), in.Field(i), false, sprop.Prop[i])
}
if emIn, ok := in.Addr().Interface().(extendableProto); ok {
emOut := out.Addr().Interface().(extendableProto)
mergeExtension(emOut.ExtensionMap(), emIn.ExtensionMap())
}
uf := in.FieldByName("XXX_unrecognized")
if !uf.IsValid() {
return
}
uin := uf.Bytes()
if len(uin) > 0 {
out.FieldByName("XXX_unrecognized").SetBytes(append([]byte(nil), uin...))
}
}
// mergeAny performs a merge between two values of the same type.
// viaPtr indicates whether the values were indirected through a pointer (implying proto2).
// prop is set if this is a struct field (it may be nil).
func mergeAny(out, in reflect.Value, viaPtr bool, prop *Properties) {
if in.Type() == protoMessageType {
if !in.IsNil() {
if out.IsNil() {
out.Set(reflect.ValueOf(Clone(in.Interface().(Message))))
} else {
Merge(out.Interface().(Message), in.Interface().(Message))
}
}
return
}
switch in.Kind() {
case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
reflect.String, reflect.Uint32, reflect.Uint64:
if !viaPtr && isProto3Zero(in) {
return
}
out.Set(in)
case reflect.Interface:
// Probably a oneof field; copy non-nil values.
if in.IsNil() {
return
}
// Allocate destination if it is not set, or set to a different type.
// Otherwise we will merge as normal.
if out.IsNil() || out.Elem().Type() != in.Elem().Type() {
out.Set(reflect.New(in.Elem().Elem().Type())) // interface -> *T -> T -> new(T)
}
mergeAny(out.Elem(), in.Elem(), false, nil)
case reflect.Map:
if in.Len() == 0 {
return
}
if out.IsNil() {
out.Set(reflect.MakeMap(in.Type()))
}
// For maps with value types of *T or []byte we need to deep copy each value.
elemKind := in.Type().Elem().Kind()
for _, key := range in.MapKeys() {
var val reflect.Value
switch elemKind {
case reflect.Ptr:
val = reflect.New(in.Type().Elem().Elem())
mergeAny(val, in.MapIndex(key), false, nil)
case reflect.Slice:
val = in.MapIndex(key)
val = reflect.ValueOf(append([]byte{}, val.Bytes()...))
default:
val = in.MapIndex(key)
}
out.SetMapIndex(key, val)
}
case reflect.Ptr:
if in.IsNil() {
return
}
if out.IsNil() {
out.Set(reflect.New(in.Elem().Type()))
}
mergeAny(out.Elem(), in.Elem(), true, nil)
case reflect.Slice:
if in.IsNil() {
return
}
if in.Type().Elem().Kind() == reflect.Uint8 {
// []byte is a scalar bytes field, not a repeated field.
// Edge case: if this is in a proto3 message, a zero length
// bytes field is considered the zero value, and should not
// be merged.
if prop != nil && prop.proto3 && in.Len() == 0 {
return
}
// Make a deep copy.
// Append to []byte{} instead of []byte(nil) so that we never end up
// with a nil result.
out.SetBytes(append([]byte{}, in.Bytes()...))
return
}
n := in.Len()
if out.IsNil() {
out.Set(reflect.MakeSlice(in.Type(), 0, n))
}
switch in.Type().Elem().Kind() {
case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
reflect.String, reflect.Uint32, reflect.Uint64:
out.Set(reflect.AppendSlice(out, in))
default:
for i := 0; i < n; i++ {
x := reflect.Indirect(reflect.New(in.Type().Elem()))
mergeAny(x, in.Index(i), false, nil)
out.Set(reflect.Append(out, x))
}
}
case reflect.Struct:
mergeStruct(out, in)
default:
// unknown type, so not a protocol buffer
log.Printf("proto: don't know how to copy %v", in)
}
}
func mergeExtension(out, in map[int32]Extension) {
for extNum, eIn := range in {
eOut := Extension{desc: eIn.desc}
if eIn.value != nil {
v := reflect.New(reflect.TypeOf(eIn.value)).Elem()
mergeAny(v, reflect.ValueOf(eIn.value), false, nil)
eOut.value = v.Interface()
}
if eIn.enc != nil {
eOut.enc = make([]byte, len(eIn.enc))
copy(eOut.enc, eIn.enc)
}
out[extNum] = eOut
}
}

867
vendor/github.com/golang/protobuf/proto/decode.go generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Routines for decoding protocol buffer data to construct in-memory representations.
*/
import (
"errors"
"fmt"
"io"
"os"
"reflect"
)
// errOverflow is returned when an integer is too large to be represented.
var errOverflow = errors.New("proto: integer overflow")
// ErrInternalBadWireType is returned by generated code when an incorrect
// wire type is encountered. It does not get returned to user code.
var ErrInternalBadWireType = errors.New("proto: internal error: bad wiretype for oneof")
// The fundamental decoders that interpret bytes on the wire.
// Those that take integer types all return uint64 and are
// therefore of type valueDecoder.
// DecodeVarint reads a varint-encoded integer from the slice.
// It returns the integer and the number of bytes consumed, or
// zero if there is not enough.
// This is the format for the
// int32, int64, uint32, uint64, bool, and enum
// protocol buffer types.
func DecodeVarint(buf []byte) (x uint64, n int) {
// x, n already 0
for shift := uint(0); shift < 64; shift += 7 {
if n >= len(buf) {
return 0, 0
}
b := uint64(buf[n])
n++
x |= (b & 0x7F) << shift
if (b & 0x80) == 0 {
return x, n
}
}
// The number is too large to represent in a 64-bit value.
return 0, 0
}
// DecodeVarint reads a varint-encoded integer from the Buffer.
// This is the format for the
// int32, int64, uint32, uint64, bool, and enum
// protocol buffer types.
func (p *Buffer) DecodeVarint() (x uint64, err error) {
// x, err already 0
i := p.index
l := len(p.buf)
for shift := uint(0); shift < 64; shift += 7 {
if i >= l {
err = io.ErrUnexpectedEOF
return
}
b := p.buf[i]
i++
x |= (uint64(b) & 0x7F) << shift
if b < 0x80 {
p.index = i
return
}
}
// The number is too large to represent in a 64-bit value.
err = errOverflow
return
}
// DecodeFixed64 reads a 64-bit integer from the Buffer.
// This is the format for the
// fixed64, sfixed64, and double protocol buffer types.
func (p *Buffer) DecodeFixed64() (x uint64, err error) {
// x, err already 0
i := p.index + 8
if i < 0 || i > len(p.buf) {
err = io.ErrUnexpectedEOF
return
}
p.index = i
x = uint64(p.buf[i-8])
x |= uint64(p.buf[i-7]) << 8
x |= uint64(p.buf[i-6]) << 16
x |= uint64(p.buf[i-5]) << 24
x |= uint64(p.buf[i-4]) << 32
x |= uint64(p.buf[i-3]) << 40
x |= uint64(p.buf[i-2]) << 48
x |= uint64(p.buf[i-1]) << 56
return
}
// DecodeFixed32 reads a 32-bit integer from the Buffer.
// This is the format for the
// fixed32, sfixed32, and float protocol buffer types.
func (p *Buffer) DecodeFixed32() (x uint64, err error) {
// x, err already 0
i := p.index + 4
if i < 0 || i > len(p.buf) {
err = io.ErrUnexpectedEOF
return
}
p.index = i
x = uint64(p.buf[i-4])
x |= uint64(p.buf[i-3]) << 8
x |= uint64(p.buf[i-2]) << 16
x |= uint64(p.buf[i-1]) << 24
return
}
// DecodeZigzag64 reads a zigzag-encoded 64-bit integer
// from the Buffer.
// This is the format used for the sint64 protocol buffer type.
func (p *Buffer) DecodeZigzag64() (x uint64, err error) {
x, err = p.DecodeVarint()
if err != nil {
return
}
x = (x >> 1) ^ uint64((int64(x&1)<<63)>>63)
return
}
// DecodeZigzag32 reads a zigzag-encoded 32-bit integer
// from the Buffer.
// This is the format used for the sint32 protocol buffer type.
func (p *Buffer) DecodeZigzag32() (x uint64, err error) {
x, err = p.DecodeVarint()
if err != nil {
return
}
x = uint64((uint32(x) >> 1) ^ uint32((int32(x&1)<<31)>>31))
return
}
// These are not ValueDecoders: they produce an array of bytes or a string.
// bytes, embedded messages
// DecodeRawBytes reads a count-delimited byte buffer from the Buffer.
// This is the format used for the bytes protocol buffer
// type and for embedded messages.
func (p *Buffer) DecodeRawBytes(alloc bool) (buf []byte, err error) {
n, err := p.DecodeVarint()
if err != nil {
return nil, err
}
nb := int(n)
if nb < 0 {
return nil, fmt.Errorf("proto: bad byte length %d", nb)
}
end := p.index + nb
if end < p.index || end > len(p.buf) {
return nil, io.ErrUnexpectedEOF
}
if !alloc {
// todo: check if can get more uses of alloc=false
buf = p.buf[p.index:end]
p.index += nb
return
}
buf = make([]byte, nb)
copy(buf, p.buf[p.index:])
p.index += nb
return
}
// DecodeStringBytes reads an encoded string from the Buffer.
// This is the format used for the proto2 string type.
func (p *Buffer) DecodeStringBytes() (s string, err error) {
buf, err := p.DecodeRawBytes(false)
if err != nil {
return
}
return string(buf), nil
}
// Skip the next item in the buffer. Its wire type is decoded and presented as an argument.
// If the protocol buffer has extensions, and the field matches, add it as an extension.
// Otherwise, if the XXX_unrecognized field exists, append the skipped data there.
func (o *Buffer) skipAndSave(t reflect.Type, tag, wire int, base structPointer, unrecField field) error {
oi := o.index
err := o.skip(t, tag, wire)
if err != nil {
return err
}
if !unrecField.IsValid() {
return nil
}
ptr := structPointer_Bytes(base, unrecField)
// Add the skipped field to struct field
obuf := o.buf
o.buf = *ptr
o.EncodeVarint(uint64(tag<<3 | wire))
*ptr = append(o.buf, obuf[oi:o.index]...)
o.buf = obuf
return nil
}
// Skip the next item in the buffer. Its wire type is decoded and presented as an argument.
func (o *Buffer) skip(t reflect.Type, tag, wire int) error {
var u uint64
var err error
switch wire {
case WireVarint:
_, err = o.DecodeVarint()
case WireFixed64:
_, err = o.DecodeFixed64()
case WireBytes:
_, err = o.DecodeRawBytes(false)
case WireFixed32:
_, err = o.DecodeFixed32()
case WireStartGroup:
for {
u, err = o.DecodeVarint()
if err != nil {
break
}
fwire := int(u & 0x7)
if fwire == WireEndGroup {
break
}
ftag := int(u >> 3)
err = o.skip(t, ftag, fwire)
if err != nil {
break
}
}
default:
err = fmt.Errorf("proto: can't skip unknown wire type %d for %s", wire, t)
}
return err
}
// Unmarshaler is the interface representing objects that can
// unmarshal themselves. The method should reset the receiver before
// decoding starts. The argument points to data that may be
// overwritten, so implementations should not keep references to the
// buffer.
type Unmarshaler interface {
Unmarshal([]byte) error
}
// Unmarshal parses the protocol buffer representation in buf and places the
// decoded result in pb. If the struct underlying pb does not match
// the data in buf, the results can be unpredictable.
//
// Unmarshal resets pb before starting to unmarshal, so any
// existing data in pb is always removed. Use UnmarshalMerge
// to preserve and append to existing data.
func Unmarshal(buf []byte, pb Message) error {
pb.Reset()
return UnmarshalMerge(buf, pb)
}
// UnmarshalMerge parses the protocol buffer representation in buf and
// writes the decoded result to pb. If the struct underlying pb does not match
// the data in buf, the results can be unpredictable.
//
// UnmarshalMerge merges into existing data in pb.
// Most code should use Unmarshal instead.
func UnmarshalMerge(buf []byte, pb Message) error {
// If the object can unmarshal itself, let it.
if u, ok := pb.(Unmarshaler); ok {
return u.Unmarshal(buf)
}
return NewBuffer(buf).Unmarshal(pb)
}
// DecodeMessage reads a count-delimited message from the Buffer.
func (p *Buffer) DecodeMessage(pb Message) error {
enc, err := p.DecodeRawBytes(false)
if err != nil {
return err
}
return NewBuffer(enc).Unmarshal(pb)
}
// DecodeGroup reads a tag-delimited group from the Buffer.
func (p *Buffer) DecodeGroup(pb Message) error {
typ, base, err := getbase(pb)
if err != nil {
return err
}
return p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), true, base)
}
// Unmarshal parses the protocol buffer representation in the
// Buffer and places the decoded result in pb. If the struct
// underlying pb does not match the data in the buffer, the results can be
// unpredictable.
func (p *Buffer) Unmarshal(pb Message) error {
// If the object can unmarshal itself, let it.
if u, ok := pb.(Unmarshaler); ok {
err := u.Unmarshal(p.buf[p.index:])
p.index = len(p.buf)
return err
}
typ, base, err := getbase(pb)
if err != nil {
return err
}
err = p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), false, base)
if collectStats {
stats.Decode++
}
return err
}
// unmarshalType does the work of unmarshaling a structure.
func (o *Buffer) unmarshalType(st reflect.Type, prop *StructProperties, is_group bool, base structPointer) error {
var state errorState
required, reqFields := prop.reqCount, uint64(0)
var err error
for err == nil && o.index < len(o.buf) {
oi := o.index
var u uint64
u, err = o.DecodeVarint()
if err != nil {
break
}
wire := int(u & 0x7)
if wire == WireEndGroup {
if is_group {
return nil // input is satisfied
}
return fmt.Errorf("proto: %s: wiretype end group for non-group", st)
}
tag := int(u >> 3)
if tag <= 0 {
return fmt.Errorf("proto: %s: illegal tag %d (wire type %d)", st, tag, wire)
}
fieldnum, ok := prop.decoderTags.get(tag)
if !ok {
// Maybe it's an extension?
if prop.extendable {
if e := structPointer_Interface(base, st).(extendableProto); isExtensionField(e, int32(tag)) {
if err = o.skip(st, tag, wire); err == nil {
ext := e.ExtensionMap()[int32(tag)] // may be missing
ext.enc = append(ext.enc, o.buf[oi:o.index]...)
e.ExtensionMap()[int32(tag)] = ext
}
continue
}
}
// Maybe it's a oneof?
if prop.oneofUnmarshaler != nil {
m := structPointer_Interface(base, st).(Message)
// First return value indicates whether tag is a oneof field.
ok, err = prop.oneofUnmarshaler(m, tag, wire, o)
if err == ErrInternalBadWireType {
// Map the error to something more descriptive.
// Do the formatting here to save generated code space.
err = fmt.Errorf("bad wiretype for oneof field in %T", m)
}
if ok {
continue
}
}
err = o.skipAndSave(st, tag, wire, base, prop.unrecField)
continue
}
p := prop.Prop[fieldnum]
if p.dec == nil {
fmt.Fprintf(os.Stderr, "proto: no protobuf decoder for %s.%s\n", st, st.Field(fieldnum).Name)
continue
}
dec := p.dec
if wire != WireStartGroup && wire != p.WireType {
if wire == WireBytes && p.packedDec != nil {
// a packable field
dec = p.packedDec
} else {
err = fmt.Errorf("proto: bad wiretype for field %s.%s: got wiretype %d, want %d", st, st.Field(fieldnum).Name, wire, p.WireType)
continue
}
}
decErr := dec(o, p, base)
if decErr != nil && !state.shouldContinue(decErr, p) {
err = decErr
}
if err == nil && p.Required {
// Successfully decoded a required field.
if tag <= 64 {
// use bitmap for fields 1-64 to catch field reuse.
var mask uint64 = 1 << uint64(tag-1)
if reqFields&mask == 0 {
// new required field
reqFields |= mask
required--
}
} else {
// This is imprecise. It can be fooled by a required field
// with a tag > 64 that is encoded twice; that's very rare.
// A fully correct implementation would require allocating
// a data structure, which we would like to avoid.
required--
}
}
}
if err == nil {
if is_group {
return io.ErrUnexpectedEOF
}
if state.err != nil {
return state.err
}
if required > 0 {
// Not enough information to determine the exact field. If we use extra
// CPU, we could determine the field only if the missing required field
// has a tag <= 64 and we check reqFields.
return &RequiredNotSetError{"{Unknown}"}
}
}
return err
}
// Individual type decoders
// For each,
// u is the decoded value,
// v is a pointer to the field (pointer) in the struct
// Sizes of the pools to allocate inside the Buffer.
// The goal is modest amortization and allocation
// on at least 16-byte boundaries.
const (
boolPoolSize = 16
uint32PoolSize = 8
uint64PoolSize = 4
)
// Decode a bool.
func (o *Buffer) dec_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
if len(o.bools) == 0 {
o.bools = make([]bool, boolPoolSize)
}
o.bools[0] = u != 0
*structPointer_Bool(base, p.field) = &o.bools[0]
o.bools = o.bools[1:]
return nil
}
func (o *Buffer) dec_proto3_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
*structPointer_BoolVal(base, p.field) = u != 0
return nil
}
// Decode an int32.
func (o *Buffer) dec_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word32_Set(structPointer_Word32(base, p.field), o, uint32(u))
return nil
}
func (o *Buffer) dec_proto3_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word32Val_Set(structPointer_Word32Val(base, p.field), uint32(u))
return nil
}
// Decode an int64.
func (o *Buffer) dec_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word64_Set(structPointer_Word64(base, p.field), o, u)
return nil
}
func (o *Buffer) dec_proto3_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word64Val_Set(structPointer_Word64Val(base, p.field), o, u)
return nil
}
// Decode a string.
func (o *Buffer) dec_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
*structPointer_String(base, p.field) = &s
return nil
}
func (o *Buffer) dec_proto3_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
*structPointer_StringVal(base, p.field) = s
return nil
}
// Decode a slice of bytes ([]byte).
func (o *Buffer) dec_slice_byte(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
*structPointer_Bytes(base, p.field) = b
return nil
}
// Decode a slice of bools ([]bool).
func (o *Buffer) dec_slice_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
v := structPointer_BoolSlice(base, p.field)
*v = append(*v, u != 0)
return nil
}
// Decode a slice of bools ([]bool) in packed format.
func (o *Buffer) dec_slice_packed_bool(p *Properties, base structPointer) error {
v := structPointer_BoolSlice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded bools
fin := o.index + nb
if fin < o.index {
return errOverflow
}
y := *v
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
y = append(y, u != 0)
}
*v = y
return nil
}
// Decode a slice of int32s ([]int32).
func (o *Buffer) dec_slice_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
structPointer_Word32Slice(base, p.field).Append(uint32(u))
return nil
}
// Decode a slice of int32s ([]int32) in packed format.
func (o *Buffer) dec_slice_packed_int32(p *Properties, base structPointer) error {
v := structPointer_Word32Slice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded int32s
fin := o.index + nb
if fin < o.index {
return errOverflow
}
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
v.Append(uint32(u))
}
return nil
}
// Decode a slice of int64s ([]int64).
func (o *Buffer) dec_slice_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
structPointer_Word64Slice(base, p.field).Append(u)
return nil
}
// Decode a slice of int64s ([]int64) in packed format.
func (o *Buffer) dec_slice_packed_int64(p *Properties, base structPointer) error {
v := structPointer_Word64Slice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded int64s
fin := o.index + nb
if fin < o.index {
return errOverflow
}
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
v.Append(u)
}
return nil
}
// Decode a slice of strings ([]string).
func (o *Buffer) dec_slice_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
v := structPointer_StringSlice(base, p.field)
*v = append(*v, s)
return nil
}
// Decode a slice of slice of bytes ([][]byte).
func (o *Buffer) dec_slice_slice_byte(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
v := structPointer_BytesSlice(base, p.field)
*v = append(*v, b)
return nil
}
// Decode a map field.
func (o *Buffer) dec_new_map(p *Properties, base structPointer) error {
raw, err := o.DecodeRawBytes(false)
if err != nil {
return err
}
oi := o.index // index at the end of this map entry
o.index -= len(raw) // move buffer back to start of map entry
mptr := structPointer_NewAt(base, p.field, p.mtype) // *map[K]V
if mptr.Elem().IsNil() {
mptr.Elem().Set(reflect.MakeMap(mptr.Type().Elem()))
}
v := mptr.Elem() // map[K]V
// Prepare addressable doubly-indirect placeholders for the key and value types.
// See enc_new_map for why.
keyptr := reflect.New(reflect.PtrTo(p.mtype.Key())).Elem() // addressable *K
keybase := toStructPointer(keyptr.Addr()) // **K
var valbase structPointer
var valptr reflect.Value
switch p.mtype.Elem().Kind() {
case reflect.Slice:
// []byte
var dummy []byte
valptr = reflect.ValueOf(&dummy) // *[]byte
valbase = toStructPointer(valptr) // *[]byte
case reflect.Ptr:
// message; valptr is **Msg; need to allocate the intermediate pointer
valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V
valptr.Set(reflect.New(valptr.Type().Elem()))
valbase = toStructPointer(valptr)
default:
// everything else
valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V
valbase = toStructPointer(valptr.Addr()) // **V
}
// Decode.
// This parses a restricted wire format, namely the encoding of a message
// with two fields. See enc_new_map for the format.
for o.index < oi {
// tagcode for key and value properties are always a single byte
// because they have tags 1 and 2.
tagcode := o.buf[o.index]
o.index++
switch tagcode {
case p.mkeyprop.tagcode[0]:
if err := p.mkeyprop.dec(o, p.mkeyprop, keybase); err != nil {
return err
}
case p.mvalprop.tagcode[0]:
if err := p.mvalprop.dec(o, p.mvalprop, valbase); err != nil {
return err
}
default:
// TODO: Should we silently skip this instead?
return fmt.Errorf("proto: bad map data tag %d", raw[0])
}
}
keyelem, valelem := keyptr.Elem(), valptr.Elem()
if !keyelem.IsValid() || !valelem.IsValid() {
// We did not decode the key or the value in the map entry.
// Either way, it's an invalid map entry.
return fmt.Errorf("proto: bad map data: missing key/val")
}
v.SetMapIndex(keyelem, valelem)
return nil
}
// Decode a group.
func (o *Buffer) dec_struct_group(p *Properties, base structPointer) error {
bas := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(bas) {
// allocate new nested message
bas = toStructPointer(reflect.New(p.stype))
structPointer_SetStructPointer(base, p.field, bas)
}
return o.unmarshalType(p.stype, p.sprop, true, bas)
}
// Decode an embedded message.
func (o *Buffer) dec_struct_message(p *Properties, base structPointer) (err error) {
raw, e := o.DecodeRawBytes(false)
if e != nil {
return e
}
bas := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(bas) {
// allocate new nested message
bas = toStructPointer(reflect.New(p.stype))
structPointer_SetStructPointer(base, p.field, bas)
}
// If the object can unmarshal itself, let it.
if p.isUnmarshaler {
iv := structPointer_Interface(bas, p.stype)
return iv.(Unmarshaler).Unmarshal(raw)
}
obuf := o.buf
oi := o.index
o.buf = raw
o.index = 0
err = o.unmarshalType(p.stype, p.sprop, false, bas)
o.buf = obuf
o.index = oi
return err
}
// Decode a slice of embedded messages.
func (o *Buffer) dec_slice_struct_message(p *Properties, base structPointer) error {
return o.dec_slice_struct(p, false, base)
}
// Decode a slice of embedded groups.
func (o *Buffer) dec_slice_struct_group(p *Properties, base structPointer) error {
return o.dec_slice_struct(p, true, base)
}
// Decode a slice of structs ([]*struct).
func (o *Buffer) dec_slice_struct(p *Properties, is_group bool, base structPointer) error {
v := reflect.New(p.stype)
bas := toStructPointer(v)
structPointer_StructPointerSlice(base, p.field).Append(bas)
if is_group {
err := o.unmarshalType(p.stype, p.sprop, is_group, bas)
return err
}
raw, err := o.DecodeRawBytes(false)
if err != nil {
return err
}
// If the object can unmarshal itself, let it.
if p.isUnmarshaler {
iv := v.Interface()
return iv.(Unmarshaler).Unmarshal(raw)
}
obuf := o.buf
oi := o.index
o.buf = raw
o.index = 0
err = o.unmarshalType(p.stype, p.sprop, is_group, bas)
o.buf = obuf
o.index = oi
return err
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Protocol buffer comparison.
package proto
import (
"bytes"
"log"
"reflect"
"strings"
)
/*
Equal returns true iff protocol buffers a and b are equal.
The arguments must both be pointers to protocol buffer structs.
Equality is defined in this way:
- Two messages are equal iff they are the same type,
corresponding fields are equal, unknown field sets
are equal, and extensions sets are equal.
- Two set scalar fields are equal iff their values are equal.
If the fields are of a floating-point type, remember that
NaN != x for all x, including NaN. If the message is defined
in a proto3 .proto file, fields are not "set"; specifically,
zero length proto3 "bytes" fields are equal (nil == {}).
- Two repeated fields are equal iff their lengths are the same,
and their corresponding elements are equal (a "bytes" field,
although represented by []byte, is not a repeated field)
- Two unset fields are equal.
- Two unknown field sets are equal if their current
encoded state is equal.
- Two extension sets are equal iff they have corresponding
elements that are pairwise equal.
- Every other combination of things are not equal.
The return value is undefined if a and b are not protocol buffers.
*/
func Equal(a, b Message) bool {
if a == nil || b == nil {
return a == b
}
v1, v2 := reflect.ValueOf(a), reflect.ValueOf(b)
if v1.Type() != v2.Type() {
return false
}
if v1.Kind() == reflect.Ptr {
if v1.IsNil() {
return v2.IsNil()
}
if v2.IsNil() {
return false
}
v1, v2 = v1.Elem(), v2.Elem()
}
if v1.Kind() != reflect.Struct {
return false
}
return equalStruct(v1, v2)
}
// v1 and v2 are known to have the same type.
func equalStruct(v1, v2 reflect.Value) bool {
sprop := GetProperties(v1.Type())
for i := 0; i < v1.NumField(); i++ {
f := v1.Type().Field(i)
if strings.HasPrefix(f.Name, "XXX_") {
continue
}
f1, f2 := v1.Field(i), v2.Field(i)
if f.Type.Kind() == reflect.Ptr {
if n1, n2 := f1.IsNil(), f2.IsNil(); n1 && n2 {
// both unset
continue
} else if n1 != n2 {
// set/unset mismatch
return false
}
b1, ok := f1.Interface().(raw)
if ok {
b2 := f2.Interface().(raw)
// RawMessage
if !bytes.Equal(b1.Bytes(), b2.Bytes()) {
return false
}
continue
}
f1, f2 = f1.Elem(), f2.Elem()
}
if !equalAny(f1, f2, sprop.Prop[i]) {
return false
}
}
if em1 := v1.FieldByName("XXX_extensions"); em1.IsValid() {
em2 := v2.FieldByName("XXX_extensions")
if !equalExtensions(v1.Type(), em1.Interface().(map[int32]Extension), em2.Interface().(map[int32]Extension)) {
return false
}
}
uf := v1.FieldByName("XXX_unrecognized")
if !uf.IsValid() {
return true
}
u1 := uf.Bytes()
u2 := v2.FieldByName("XXX_unrecognized").Bytes()
if !bytes.Equal(u1, u2) {
return false
}
return true
}
// v1 and v2 are known to have the same type.
// prop may be nil.
func equalAny(v1, v2 reflect.Value, prop *Properties) bool {
if v1.Type() == protoMessageType {
m1, _ := v1.Interface().(Message)
m2, _ := v2.Interface().(Message)
return Equal(m1, m2)
}
switch v1.Kind() {
case reflect.Bool:
return v1.Bool() == v2.Bool()
case reflect.Float32, reflect.Float64:
return v1.Float() == v2.Float()
case reflect.Int32, reflect.Int64:
return v1.Int() == v2.Int()
case reflect.Interface:
// Probably a oneof field; compare the inner values.
n1, n2 := v1.IsNil(), v2.IsNil()
if n1 || n2 {
return n1 == n2
}
e1, e2 := v1.Elem(), v2.Elem()
if e1.Type() != e2.Type() {
return false
}
return equalAny(e1, e2, nil)
case reflect.Map:
if v1.Len() != v2.Len() {
return false
}
for _, key := range v1.MapKeys() {
val2 := v2.MapIndex(key)
if !val2.IsValid() {
// This key was not found in the second map.
return false
}
if !equalAny(v1.MapIndex(key), val2, nil) {
return false
}
}
return true
case reflect.Ptr:
return equalAny(v1.Elem(), v2.Elem(), prop)
case reflect.Slice:
if v1.Type().Elem().Kind() == reflect.Uint8 {
// short circuit: []byte
// Edge case: if this is in a proto3 message, a zero length
// bytes field is considered the zero value.
if prop != nil && prop.proto3 && v1.Len() == 0 && v2.Len() == 0 {
return true
}
if v1.IsNil() != v2.IsNil() {
return false
}
return bytes.Equal(v1.Interface().([]byte), v2.Interface().([]byte))
}
if v1.Len() != v2.Len() {
return false
}
for i := 0; i < v1.Len(); i++ {
if !equalAny(v1.Index(i), v2.Index(i), prop) {
return false
}
}
return true
case reflect.String:
return v1.Interface().(string) == v2.Interface().(string)
case reflect.Struct:
return equalStruct(v1, v2)
case reflect.Uint32, reflect.Uint64:
return v1.Uint() == v2.Uint()
}
// unknown type, so not a protocol buffer
log.Printf("proto: don't know how to compare %v", v1)
return false
}
// base is the struct type that the extensions are based on.
// em1 and em2 are extension maps.
func equalExtensions(base reflect.Type, em1, em2 map[int32]Extension) bool {
if len(em1) != len(em2) {
return false
}
for extNum, e1 := range em1 {
e2, ok := em2[extNum]
if !ok {
return false
}
m1, m2 := e1.value, e2.value
if m1 != nil && m2 != nil {
// Both are unencoded.
if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) {
return false
}
continue
}
// At least one is encoded. To do a semantically correct comparison
// we need to unmarshal them first.
var desc *ExtensionDesc
if m := extensionMaps[base]; m != nil {
desc = m[extNum]
}
if desc == nil {
log.Printf("proto: don't know how to compare extension %d of %v", extNum, base)
continue
}
var err error
if m1 == nil {
m1, err = decodeExtension(e1.enc, desc)
}
if m2 == nil && err == nil {
m2, err = decodeExtension(e2.enc, desc)
}
if err != nil {
// The encoded form is invalid.
log.Printf("proto: badly encoded extension %d of %v: %v", extNum, base, err)
return false
}
if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) {
return false
}
}
return true
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Types and routines for supporting protocol buffer extensions.
*/
import (
"errors"
"fmt"
"reflect"
"strconv"
"sync"
)
// ErrMissingExtension is the error returned by GetExtension if the named extension is not in the message.
var ErrMissingExtension = errors.New("proto: missing extension")
// ExtensionRange represents a range of message extensions for a protocol buffer.
// Used in code generated by the protocol compiler.
type ExtensionRange struct {
Start, End int32 // both inclusive
}
// extendableProto is an interface implemented by any protocol buffer that may be extended.
type extendableProto interface {
Message
ExtensionRangeArray() []ExtensionRange
ExtensionMap() map[int32]Extension
}
var extendableProtoType = reflect.TypeOf((*extendableProto)(nil)).Elem()
// ExtensionDesc represents an extension specification.
// Used in generated code from the protocol compiler.
type ExtensionDesc struct {
ExtendedType Message // nil pointer to the type that is being extended
ExtensionType interface{} // nil pointer to the extension type
Field int32 // field number
Name string // fully-qualified name of extension, for text formatting
Tag string // protobuf tag style
}
func (ed *ExtensionDesc) repeated() bool {
t := reflect.TypeOf(ed.ExtensionType)
return t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8
}
// Extension represents an extension in a message.
type Extension struct {
// When an extension is stored in a message using SetExtension
// only desc and value are set. When the message is marshaled
// enc will be set to the encoded form of the message.
//
// When a message is unmarshaled and contains extensions, each
// extension will have only enc set. When such an extension is
// accessed using GetExtension (or GetExtensions) desc and value
// will be set.
desc *ExtensionDesc
value interface{}
enc []byte
}
// SetRawExtension is for testing only.
func SetRawExtension(base extendableProto, id int32, b []byte) {
base.ExtensionMap()[id] = Extension{enc: b}
}
// isExtensionField returns true iff the given field number is in an extension range.
func isExtensionField(pb extendableProto, field int32) bool {
for _, er := range pb.ExtensionRangeArray() {
if er.Start <= field && field <= er.End {
return true
}
}
return false
}
// checkExtensionTypes checks that the given extension is valid for pb.
func checkExtensionTypes(pb extendableProto, extension *ExtensionDesc) error {
// Check the extended type.
if a, b := reflect.TypeOf(pb), reflect.TypeOf(extension.ExtendedType); a != b {
return errors.New("proto: bad extended type; " + b.String() + " does not extend " + a.String())
}
// Check the range.
if !isExtensionField(pb, extension.Field) {
return errors.New("proto: bad extension number; not in declared ranges")
}
return nil
}
// extPropKey is sufficient to uniquely identify an extension.
type extPropKey struct {
base reflect.Type
field int32
}
var extProp = struct {
sync.RWMutex
m map[extPropKey]*Properties
}{
m: make(map[extPropKey]*Properties),
}
func extensionProperties(ed *ExtensionDesc) *Properties {
key := extPropKey{base: reflect.TypeOf(ed.ExtendedType), field: ed.Field}
extProp.RLock()
if prop, ok := extProp.m[key]; ok {
extProp.RUnlock()
return prop
}
extProp.RUnlock()
extProp.Lock()
defer extProp.Unlock()
// Check again.
if prop, ok := extProp.m[key]; ok {
return prop
}
prop := new(Properties)
prop.Init(reflect.TypeOf(ed.ExtensionType), "unknown_name", ed.Tag, nil)
extProp.m[key] = prop
return prop
}
// encodeExtensionMap encodes any unmarshaled (unencoded) extensions in m.
func encodeExtensionMap(m map[int32]Extension) error {
for k, e := range m {
if e.value == nil || e.desc == nil {
// Extension is only in its encoded form.
continue
}
// We don't skip extensions that have an encoded form set,
// because the extension value may have been mutated after
// the last time this function was called.
et := reflect.TypeOf(e.desc.ExtensionType)
props := extensionProperties(e.desc)
p := NewBuffer(nil)
// If e.value has type T, the encoder expects a *struct{ X T }.
// Pass a *T with a zero field and hope it all works out.
x := reflect.New(et)
x.Elem().Set(reflect.ValueOf(e.value))
if err := props.enc(p, props, toStructPointer(x)); err != nil {
return err
}
e.enc = p.buf
m[k] = e
}
return nil
}
func sizeExtensionMap(m map[int32]Extension) (n int) {
for _, e := range m {
if e.value == nil || e.desc == nil {
// Extension is only in its encoded form.
n += len(e.enc)
continue
}
// We don't skip extensions that have an encoded form set,
// because the extension value may have been mutated after
// the last time this function was called.
et := reflect.TypeOf(e.desc.ExtensionType)
props := extensionProperties(e.desc)
// If e.value has type T, the encoder expects a *struct{ X T }.
// Pass a *T with a zero field and hope it all works out.
x := reflect.New(et)
x.Elem().Set(reflect.ValueOf(e.value))
n += props.size(props, toStructPointer(x))
}
return
}
// HasExtension returns whether the given extension is present in pb.
func HasExtension(pb extendableProto, extension *ExtensionDesc) bool {
// TODO: Check types, field numbers, etc.?
_, ok := pb.ExtensionMap()[extension.Field]
return ok
}
// ClearExtension removes the given extension from pb.
func ClearExtension(pb extendableProto, extension *ExtensionDesc) {
// TODO: Check types, field numbers, etc.?
delete(pb.ExtensionMap(), extension.Field)
}
// GetExtension parses and returns the given extension of pb.
// If the extension is not present and has no default value it returns ErrMissingExtension.
func GetExtension(pb extendableProto, extension *ExtensionDesc) (interface{}, error) {
if err := checkExtensionTypes(pb, extension); err != nil {
return nil, err
}
emap := pb.ExtensionMap()
e, ok := emap[extension.Field]
if !ok {
// defaultExtensionValue returns the default value or
// ErrMissingExtension if there is no default.
return defaultExtensionValue(extension)
}
if e.value != nil {
// Already decoded. Check the descriptor, though.
if e.desc != extension {
// This shouldn't happen. If it does, it means that
// GetExtension was called twice with two different
// descriptors with the same field number.
return nil, errors.New("proto: descriptor conflict")
}
return e.value, nil
}
v, err := decodeExtension(e.enc, extension)
if err != nil {
return nil, err
}
// Remember the decoded version and drop the encoded version.
// That way it is safe to mutate what we return.
e.value = v
e.desc = extension
e.enc = nil
emap[extension.Field] = e
return e.value, nil
}
// defaultExtensionValue returns the default value for extension.
// If no default for an extension is defined ErrMissingExtension is returned.
func defaultExtensionValue(extension *ExtensionDesc) (interface{}, error) {
t := reflect.TypeOf(extension.ExtensionType)
props := extensionProperties(extension)
sf, _, err := fieldDefault(t, props)
if err != nil {
return nil, err
}
if sf == nil || sf.value == nil {
// There is no default value.
return nil, ErrMissingExtension
}
if t.Kind() != reflect.Ptr {
// We do not need to return a Ptr, we can directly return sf.value.
return sf.value, nil
}
// We need to return an interface{} that is a pointer to sf.value.
value := reflect.New(t).Elem()
value.Set(reflect.New(value.Type().Elem()))
if sf.kind == reflect.Int32 {
// We may have an int32 or an enum, but the underlying data is int32.
// Since we can't set an int32 into a non int32 reflect.value directly
// set it as a int32.
value.Elem().SetInt(int64(sf.value.(int32)))
} else {
value.Elem().Set(reflect.ValueOf(sf.value))
}
return value.Interface(), nil
}
// decodeExtension decodes an extension encoded in b.
func decodeExtension(b []byte, extension *ExtensionDesc) (interface{}, error) {
o := NewBuffer(b)
t := reflect.TypeOf(extension.ExtensionType)
props := extensionProperties(extension)
// t is a pointer to a struct, pointer to basic type or a slice.
// Allocate a "field" to store the pointer/slice itself; the
// pointer/slice will be stored here. We pass
// the address of this field to props.dec.
// This passes a zero field and a *t and lets props.dec
// interpret it as a *struct{ x t }.
value := reflect.New(t).Elem()
for {
// Discard wire type and field number varint. It isn't needed.
if _, err := o.DecodeVarint(); err != nil {
return nil, err
}
if err := props.dec(o, props, toStructPointer(value.Addr())); err != nil {
return nil, err
}
if o.index >= len(o.buf) {
break
}
}
return value.Interface(), nil
}
// GetExtensions returns a slice of the extensions present in pb that are also listed in es.
// The returned slice has the same length as es; missing extensions will appear as nil elements.
func GetExtensions(pb Message, es []*ExtensionDesc) (extensions []interface{}, err error) {
epb, ok := pb.(extendableProto)
if !ok {
err = errors.New("proto: not an extendable proto")
return
}
extensions = make([]interface{}, len(es))
for i, e := range es {
extensions[i], err = GetExtension(epb, e)
if err == ErrMissingExtension {
err = nil
}
if err != nil {
return
}
}
return
}
// SetExtension sets the specified extension of pb to the specified value.
func SetExtension(pb extendableProto, extension *ExtensionDesc, value interface{}) error {
if err := checkExtensionTypes(pb, extension); err != nil {
return err
}
typ := reflect.TypeOf(extension.ExtensionType)
if typ != reflect.TypeOf(value) {
return errors.New("proto: bad extension value type")
}
// nil extension values need to be caught early, because the
// encoder can't distinguish an ErrNil due to a nil extension
// from an ErrNil due to a missing field. Extensions are
// always optional, so the encoder would just swallow the error
// and drop all the extensions from the encoded message.
if reflect.ValueOf(value).IsNil() {
return fmt.Errorf("proto: SetExtension called with nil value of type %T", value)
}
pb.ExtensionMap()[extension.Field] = Extension{desc: extension, value: value}
return nil
}
// A global registry of extensions.
// The generated code will register the generated descriptors by calling RegisterExtension.
var extensionMaps = make(map[reflect.Type]map[int32]*ExtensionDesc)
// RegisterExtension is called from the generated code.
func RegisterExtension(desc *ExtensionDesc) {
st := reflect.TypeOf(desc.ExtendedType).Elem()
m := extensionMaps[st]
if m == nil {
m = make(map[int32]*ExtensionDesc)
extensionMaps[st] = m
}
if _, ok := m[desc.Field]; ok {
panic("proto: duplicate extension registered: " + st.String() + " " + strconv.Itoa(int(desc.Field)))
}
m[desc.Field] = desc
}
// RegisteredExtensions returns a map of the registered extensions of a
// protocol buffer struct, indexed by the extension number.
// The argument pb should be a nil pointer to the struct type.
func RegisteredExtensions(pb Message) map[int32]*ExtensionDesc {
return extensionMaps[reflect.TypeOf(pb).Elem()]
}

894
vendor/github.com/golang/protobuf/proto/lib.go generated vendored Normal file
View File

@ -0,0 +1,894 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/*
Package proto converts data structures to and from the wire format of
protocol buffers. It works in concert with the Go source code generated
for .proto files by the protocol compiler.
A summary of the properties of the protocol buffer interface
for a protocol buffer variable v:
- Names are turned from camel_case to CamelCase for export.
- There are no methods on v to set fields; just treat
them as structure fields.
- There are getters that return a field's value if set,
and return the field's default value if unset.
The getters work even if the receiver is a nil message.
- The zero value for a struct is its correct initialization state.
All desired fields must be set before marshaling.
- A Reset() method will restore a protobuf struct to its zero state.
- Non-repeated fields are pointers to the values; nil means unset.
That is, optional or required field int32 f becomes F *int32.
- Repeated fields are slices.
- Helper functions are available to aid the setting of fields.
msg.Foo = proto.String("hello") // set field
- Constants are defined to hold the default values of all fields that
have them. They have the form Default_StructName_FieldName.
Because the getter methods handle defaulted values,
direct use of these constants should be rare.
- Enums are given type names and maps from names to values.
Enum values are prefixed by the enclosing message's name, or by the
enum's type name if it is a top-level enum. Enum types have a String
method, and a Enum method to assist in message construction.
- Nested messages, groups and enums have type names prefixed with the name of
the surrounding message type.
- Extensions are given descriptor names that start with E_,
followed by an underscore-delimited list of the nested messages
that contain it (if any) followed by the CamelCased name of the
extension field itself. HasExtension, ClearExtension, GetExtension
and SetExtension are functions for manipulating extensions.
- Oneof field sets are given a single field in their message,
with distinguished wrapper types for each possible field value.
- Marshal and Unmarshal are functions to encode and decode the wire format.
When the .proto file specifies `syntax="proto3"`, there are some differences:
- Non-repeated fields of non-message type are values instead of pointers.
- Getters are only generated for message and oneof fields.
- Enum types do not get an Enum method.
The simplest way to describe this is to see an example.
Given file test.proto, containing
package example;
enum FOO { X = 17; }
message Test {
required string label = 1;
optional int32 type = 2 [default=77];
repeated int64 reps = 3;
optional group OptionalGroup = 4 {
required string RequiredField = 5;
}
oneof union {
int32 number = 6;
string name = 7;
}
}
The resulting file, test.pb.go, is:
package example
import proto "github.com/golang/protobuf/proto"
import math "math"
type FOO int32
const (
FOO_X FOO = 17
)
var FOO_name = map[int32]string{
17: "X",
}
var FOO_value = map[string]int32{
"X": 17,
}
func (x FOO) Enum() *FOO {
p := new(FOO)
*p = x
return p
}
func (x FOO) String() string {
return proto.EnumName(FOO_name, int32(x))
}
func (x *FOO) UnmarshalJSON(data []byte) error {
value, err := proto.UnmarshalJSONEnum(FOO_value, data)
if err != nil {
return err
}
*x = FOO(value)
return nil
}
type Test struct {
Label *string `protobuf:"bytes,1,req,name=label" json:"label,omitempty"`
Type *int32 `protobuf:"varint,2,opt,name=type,def=77" json:"type,omitempty"`
Reps []int64 `protobuf:"varint,3,rep,name=reps" json:"reps,omitempty"`
Optionalgroup *Test_OptionalGroup `protobuf:"group,4,opt,name=OptionalGroup" json:"optionalgroup,omitempty"`
// Types that are valid to be assigned to Union:
// *Test_Number
// *Test_Name
Union isTest_Union `protobuf_oneof:"union"`
XXX_unrecognized []byte `json:"-"`
}
func (m *Test) Reset() { *m = Test{} }
func (m *Test) String() string { return proto.CompactTextString(m) }
func (*Test) ProtoMessage() {}
type isTest_Union interface {
isTest_Union()
}
type Test_Number struct {
Number int32 `protobuf:"varint,6,opt,name=number"`
}
type Test_Name struct {
Name string `protobuf:"bytes,7,opt,name=name"`
}
func (*Test_Number) isTest_Union() {}
func (*Test_Name) isTest_Union() {}
func (m *Test) GetUnion() isTest_Union {
if m != nil {
return m.Union
}
return nil
}
const Default_Test_Type int32 = 77
func (m *Test) GetLabel() string {
if m != nil && m.Label != nil {
return *m.Label
}
return ""
}
func (m *Test) GetType() int32 {
if m != nil && m.Type != nil {
return *m.Type
}
return Default_Test_Type
}
func (m *Test) GetOptionalgroup() *Test_OptionalGroup {
if m != nil {
return m.Optionalgroup
}
return nil
}
type Test_OptionalGroup struct {
RequiredField *string `protobuf:"bytes,5,req" json:"RequiredField,omitempty"`
}
func (m *Test_OptionalGroup) Reset() { *m = Test_OptionalGroup{} }
func (m *Test_OptionalGroup) String() string { return proto.CompactTextString(m) }
func (m *Test_OptionalGroup) GetRequiredField() string {
if m != nil && m.RequiredField != nil {
return *m.RequiredField
}
return ""
}
func (m *Test) GetNumber() int32 {
if x, ok := m.GetUnion().(*Test_Number); ok {
return x.Number
}
return 0
}
func (m *Test) GetName() string {
if x, ok := m.GetUnion().(*Test_Name); ok {
return x.Name
}
return ""
}
func init() {
proto.RegisterEnum("example.FOO", FOO_name, FOO_value)
}
To create and play with a Test object:
package main
import (
"log"
"github.com/golang/protobuf/proto"
pb "./example.pb"
)
func main() {
test := &pb.Test{
Label: proto.String("hello"),
Type: proto.Int32(17),
Reps: []int64{1, 2, 3},
Optionalgroup: &pb.Test_OptionalGroup{
RequiredField: proto.String("good bye"),
},
Union: &pb.Test_Name{"fred"},
}
data, err := proto.Marshal(test)
if err != nil {
log.Fatal("marshaling error: ", err)
}
newTest := &pb.Test{}
err = proto.Unmarshal(data, newTest)
if err != nil {
log.Fatal("unmarshaling error: ", err)
}
// Now test and newTest contain the same data.
if test.GetLabel() != newTest.GetLabel() {
log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel())
}
// Use a type switch to determine which oneof was set.
switch u := test.Union.(type) {
case *pb.Test_Number: // u.Number contains the number.
case *pb.Test_Name: // u.Name contains the string.
}
// etc.
}
*/
package proto
import (
"encoding/json"
"fmt"
"log"
"reflect"
"sort"
"strconv"
"sync"
)
// Message is implemented by generated protocol buffer messages.
type Message interface {
Reset()
String() string
ProtoMessage()
}
// Stats records allocation details about the protocol buffer encoders
// and decoders. Useful for tuning the library itself.
type Stats struct {
Emalloc uint64 // mallocs in encode
Dmalloc uint64 // mallocs in decode
Encode uint64 // number of encodes
Decode uint64 // number of decodes
Chit uint64 // number of cache hits
Cmiss uint64 // number of cache misses
Size uint64 // number of sizes
}
// Set to true to enable stats collection.
const collectStats = false
var stats Stats
// GetStats returns a copy of the global Stats structure.
func GetStats() Stats { return stats }
// A Buffer is a buffer manager for marshaling and unmarshaling
// protocol buffers. It may be reused between invocations to
// reduce memory usage. It is not necessary to use a Buffer;
// the global functions Marshal and Unmarshal create a
// temporary Buffer and are fine for most applications.
type Buffer struct {
buf []byte // encode/decode byte stream
index int // write point
// pools of basic types to amortize allocation.
bools []bool
uint32s []uint32
uint64s []uint64
// extra pools, only used with pointer_reflect.go
int32s []int32
int64s []int64
float32s []float32
float64s []float64
}
// NewBuffer allocates a new Buffer and initializes its internal data to
// the contents of the argument slice.
func NewBuffer(e []byte) *Buffer {
return &Buffer{buf: e}
}
// Reset resets the Buffer, ready for marshaling a new protocol buffer.
func (p *Buffer) Reset() {
p.buf = p.buf[0:0] // for reading/writing
p.index = 0 // for reading
}
// SetBuf replaces the internal buffer with the slice,
// ready for unmarshaling the contents of the slice.
func (p *Buffer) SetBuf(s []byte) {
p.buf = s
p.index = 0
}
// Bytes returns the contents of the Buffer.
func (p *Buffer) Bytes() []byte { return p.buf }
/*
* Helper routines for simplifying the creation of optional fields of basic type.
*/
// Bool is a helper routine that allocates a new bool value
// to store v and returns a pointer to it.
func Bool(v bool) *bool {
return &v
}
// Int32 is a helper routine that allocates a new int32 value
// to store v and returns a pointer to it.
func Int32(v int32) *int32 {
return &v
}
// Int is a helper routine that allocates a new int32 value
// to store v and returns a pointer to it, but unlike Int32
// its argument value is an int.
func Int(v int) *int32 {
p := new(int32)
*p = int32(v)
return p
}
// Int64 is a helper routine that allocates a new int64 value
// to store v and returns a pointer to it.
func Int64(v int64) *int64 {
return &v
}
// Float32 is a helper routine that allocates a new float32 value
// to store v and returns a pointer to it.
func Float32(v float32) *float32 {
return &v
}
// Float64 is a helper routine that allocates a new float64 value
// to store v and returns a pointer to it.
func Float64(v float64) *float64 {
return &v
}
// Uint32 is a helper routine that allocates a new uint32 value
// to store v and returns a pointer to it.
func Uint32(v uint32) *uint32 {
return &v
}
// Uint64 is a helper routine that allocates a new uint64 value
// to store v and returns a pointer to it.
func Uint64(v uint64) *uint64 {
return &v
}
// String is a helper routine that allocates a new string value
// to store v and returns a pointer to it.
func String(v string) *string {
return &v
}
// EnumName is a helper function to simplify printing protocol buffer enums
// by name. Given an enum map and a value, it returns a useful string.
func EnumName(m map[int32]string, v int32) string {
s, ok := m[v]
if ok {
return s
}
return strconv.Itoa(int(v))
}
// UnmarshalJSONEnum is a helper function to simplify recovering enum int values
// from their JSON-encoded representation. Given a map from the enum's symbolic
// names to its int values, and a byte buffer containing the JSON-encoded
// value, it returns an int32 that can be cast to the enum type by the caller.
//
// The function can deal with both JSON representations, numeric and symbolic.
func UnmarshalJSONEnum(m map[string]int32, data []byte, enumName string) (int32, error) {
if data[0] == '"' {
// New style: enums are strings.
var repr string
if err := json.Unmarshal(data, &repr); err != nil {
return -1, err
}
val, ok := m[repr]
if !ok {
return 0, fmt.Errorf("unrecognized enum %s value %q", enumName, repr)
}
return val, nil
}
// Old style: enums are ints.
var val int32
if err := json.Unmarshal(data, &val); err != nil {
return 0, fmt.Errorf("cannot unmarshal %#q into enum %s", data, enumName)
}
return val, nil
}
// DebugPrint dumps the encoded data in b in a debugging format with a header
// including the string s. Used in testing but made available for general debugging.
func (p *Buffer) DebugPrint(s string, b []byte) {
var u uint64
obuf := p.buf
index := p.index
p.buf = b
p.index = 0
depth := 0
fmt.Printf("\n--- %s ---\n", s)
out:
for {
for i := 0; i < depth; i++ {
fmt.Print(" ")
}
index := p.index
if index == len(p.buf) {
break
}
op, err := p.DecodeVarint()
if err != nil {
fmt.Printf("%3d: fetching op err %v\n", index, err)
break out
}
tag := op >> 3
wire := op & 7
switch wire {
default:
fmt.Printf("%3d: t=%3d unknown wire=%d\n",
index, tag, wire)
break out
case WireBytes:
var r []byte
r, err = p.DecodeRawBytes(false)
if err != nil {
break out
}
fmt.Printf("%3d: t=%3d bytes [%d]", index, tag, len(r))
if len(r) <= 6 {
for i := 0; i < len(r); i++ {
fmt.Printf(" %.2x", r[i])
}
} else {
for i := 0; i < 3; i++ {
fmt.Printf(" %.2x", r[i])
}
fmt.Printf(" ..")
for i := len(r) - 3; i < len(r); i++ {
fmt.Printf(" %.2x", r[i])
}
}
fmt.Printf("\n")
case WireFixed32:
u, err = p.DecodeFixed32()
if err != nil {
fmt.Printf("%3d: t=%3d fix32 err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d fix32 %d\n", index, tag, u)
case WireFixed64:
u, err = p.DecodeFixed64()
if err != nil {
fmt.Printf("%3d: t=%3d fix64 err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d fix64 %d\n", index, tag, u)
case WireVarint:
u, err = p.DecodeVarint()
if err != nil {
fmt.Printf("%3d: t=%3d varint err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d varint %d\n", index, tag, u)
case WireStartGroup:
fmt.Printf("%3d: t=%3d start\n", index, tag)
depth++
case WireEndGroup:
depth--
fmt.Printf("%3d: t=%3d end\n", index, tag)
}
}
if depth != 0 {
fmt.Printf("%3d: start-end not balanced %d\n", p.index, depth)
}
fmt.Printf("\n")
p.buf = obuf
p.index = index
}
// SetDefaults sets unset protocol buffer fields to their default values.
// It only modifies fields that are both unset and have defined defaults.
// It recursively sets default values in any non-nil sub-messages.
func SetDefaults(pb Message) {
setDefaults(reflect.ValueOf(pb), true, false)
}
// v is a pointer to a struct.
func setDefaults(v reflect.Value, recur, zeros bool) {
v = v.Elem()
defaultMu.RLock()
dm, ok := defaults[v.Type()]
defaultMu.RUnlock()
if !ok {
dm = buildDefaultMessage(v.Type())
defaultMu.Lock()
defaults[v.Type()] = dm
defaultMu.Unlock()
}
for _, sf := range dm.scalars {
f := v.Field(sf.index)
if !f.IsNil() {
// field already set
continue
}
dv := sf.value
if dv == nil && !zeros {
// no explicit default, and don't want to set zeros
continue
}
fptr := f.Addr().Interface() // **T
// TODO: Consider batching the allocations we do here.
switch sf.kind {
case reflect.Bool:
b := new(bool)
if dv != nil {
*b = dv.(bool)
}
*(fptr.(**bool)) = b
case reflect.Float32:
f := new(float32)
if dv != nil {
*f = dv.(float32)
}
*(fptr.(**float32)) = f
case reflect.Float64:
f := new(float64)
if dv != nil {
*f = dv.(float64)
}
*(fptr.(**float64)) = f
case reflect.Int32:
// might be an enum
if ft := f.Type(); ft != int32PtrType {
// enum
f.Set(reflect.New(ft.Elem()))
if dv != nil {
f.Elem().SetInt(int64(dv.(int32)))
}
} else {
// int32 field
i := new(int32)
if dv != nil {
*i = dv.(int32)
}
*(fptr.(**int32)) = i
}
case reflect.Int64:
i := new(int64)
if dv != nil {
*i = dv.(int64)
}
*(fptr.(**int64)) = i
case reflect.String:
s := new(string)
if dv != nil {
*s = dv.(string)
}
*(fptr.(**string)) = s
case reflect.Uint8:
// exceptional case: []byte
var b []byte
if dv != nil {
db := dv.([]byte)
b = make([]byte, len(db))
copy(b, db)
} else {
b = []byte{}
}
*(fptr.(*[]byte)) = b
case reflect.Uint32:
u := new(uint32)
if dv != nil {
*u = dv.(uint32)
}
*(fptr.(**uint32)) = u
case reflect.Uint64:
u := new(uint64)
if dv != nil {
*u = dv.(uint64)
}
*(fptr.(**uint64)) = u
default:
log.Printf("proto: can't set default for field %v (sf.kind=%v)", f, sf.kind)
}
}
for _, ni := range dm.nested {
f := v.Field(ni)
// f is *T or []*T or map[T]*T
switch f.Kind() {
case reflect.Ptr:
if f.IsNil() {
continue
}
setDefaults(f, recur, zeros)
case reflect.Slice:
for i := 0; i < f.Len(); i++ {
e := f.Index(i)
if e.IsNil() {
continue
}
setDefaults(e, recur, zeros)
}
case reflect.Map:
for _, k := range f.MapKeys() {
e := f.MapIndex(k)
if e.IsNil() {
continue
}
setDefaults(e, recur, zeros)
}
}
}
}
var (
// defaults maps a protocol buffer struct type to a slice of the fields,
// with its scalar fields set to their proto-declared non-zero default values.
defaultMu sync.RWMutex
defaults = make(map[reflect.Type]defaultMessage)
int32PtrType = reflect.TypeOf((*int32)(nil))
)
// defaultMessage represents information about the default values of a message.
type defaultMessage struct {
scalars []scalarField
nested []int // struct field index of nested messages
}
type scalarField struct {
index int // struct field index
kind reflect.Kind // element type (the T in *T or []T)
value interface{} // the proto-declared default value, or nil
}
// t is a struct type.
func buildDefaultMessage(t reflect.Type) (dm defaultMessage) {
sprop := GetProperties(t)
for _, prop := range sprop.Prop {
fi, ok := sprop.decoderTags.get(prop.Tag)
if !ok {
// XXX_unrecognized
continue
}
ft := t.Field(fi).Type
sf, nested, err := fieldDefault(ft, prop)
switch {
case err != nil:
log.Print(err)
case nested:
dm.nested = append(dm.nested, fi)
case sf != nil:
sf.index = fi
dm.scalars = append(dm.scalars, *sf)
}
}
return dm
}
// fieldDefault returns the scalarField for field type ft.
// sf will be nil if the field can not have a default.
// nestedMessage will be true if this is a nested message.
// Note that sf.index is not set on return.
func fieldDefault(ft reflect.Type, prop *Properties) (sf *scalarField, nestedMessage bool, err error) {
var canHaveDefault bool
switch ft.Kind() {
case reflect.Ptr:
if ft.Elem().Kind() == reflect.Struct {
nestedMessage = true
} else {
canHaveDefault = true // proto2 scalar field
}
case reflect.Slice:
switch ft.Elem().Kind() {
case reflect.Ptr:
nestedMessage = true // repeated message
case reflect.Uint8:
canHaveDefault = true // bytes field
}
case reflect.Map:
if ft.Elem().Kind() == reflect.Ptr {
nestedMessage = true // map with message values
}
}
if !canHaveDefault {
if nestedMessage {
return nil, true, nil
}
return nil, false, nil
}
// We now know that ft is a pointer or slice.
sf = &scalarField{kind: ft.Elem().Kind()}
// scalar fields without defaults
if !prop.HasDefault {
return sf, false, nil
}
// a scalar field: either *T or []byte
switch ft.Elem().Kind() {
case reflect.Bool:
x, err := strconv.ParseBool(prop.Default)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default bool %q: %v", prop.Default, err)
}
sf.value = x
case reflect.Float32:
x, err := strconv.ParseFloat(prop.Default, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default float32 %q: %v", prop.Default, err)
}
sf.value = float32(x)
case reflect.Float64:
x, err := strconv.ParseFloat(prop.Default, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default float64 %q: %v", prop.Default, err)
}
sf.value = x
case reflect.Int32:
x, err := strconv.ParseInt(prop.Default, 10, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default int32 %q: %v", prop.Default, err)
}
sf.value = int32(x)
case reflect.Int64:
x, err := strconv.ParseInt(prop.Default, 10, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default int64 %q: %v", prop.Default, err)
}
sf.value = x
case reflect.String:
sf.value = prop.Default
case reflect.Uint8:
// []byte (not *uint8)
sf.value = []byte(prop.Default)
case reflect.Uint32:
x, err := strconv.ParseUint(prop.Default, 10, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default uint32 %q: %v", prop.Default, err)
}
sf.value = uint32(x)
case reflect.Uint64:
x, err := strconv.ParseUint(prop.Default, 10, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default uint64 %q: %v", prop.Default, err)
}
sf.value = x
default:
return nil, false, fmt.Errorf("proto: unhandled def kind %v", ft.Elem().Kind())
}
return sf, false, nil
}
// Map fields may have key types of non-float scalars, strings and enums.
// The easiest way to sort them in some deterministic order is to use fmt.
// If this turns out to be inefficient we can always consider other options,
// such as doing a Schwartzian transform.
func mapKeys(vs []reflect.Value) sort.Interface {
s := mapKeySorter{
vs: vs,
// default Less function: textual comparison
less: func(a, b reflect.Value) bool {
return fmt.Sprint(a.Interface()) < fmt.Sprint(b.Interface())
},
}
// Type specialization per https://developers.google.com/protocol-buffers/docs/proto#maps;
// numeric keys are sorted numerically.
if len(vs) == 0 {
return s
}
switch vs[0].Kind() {
case reflect.Int32, reflect.Int64:
s.less = func(a, b reflect.Value) bool { return a.Int() < b.Int() }
case reflect.Uint32, reflect.Uint64:
s.less = func(a, b reflect.Value) bool { return a.Uint() < b.Uint() }
}
return s
}
type mapKeySorter struct {
vs []reflect.Value
less func(a, b reflect.Value) bool
}
func (s mapKeySorter) Len() int { return len(s.vs) }
func (s mapKeySorter) Swap(i, j int) { s.vs[i], s.vs[j] = s.vs[j], s.vs[i] }
func (s mapKeySorter) Less(i, j int) bool {
return s.less(s.vs[i], s.vs[j])
}
// isProto3Zero reports whether v is a zero proto3 value.
func isProto3Zero(v reflect.Value) bool {
switch v.Kind() {
case reflect.Bool:
return !v.Bool()
case reflect.Int32, reflect.Int64:
return v.Int() == 0
case reflect.Uint32, reflect.Uint64:
return v.Uint() == 0
case reflect.Float32, reflect.Float64:
return v.Float() == 0
case reflect.String:
return v.String() == ""
}
return false
}
// ProtoPackageIsVersion1 is referenced from generated protocol buffer files
// to assert that that code is compatible with this version of the proto package.
const ProtoPackageIsVersion1 = true

280
vendor/github.com/golang/protobuf/proto/message_set.go generated vendored Normal file
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@ -0,0 +1,280 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Support for message sets.
*/
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"reflect"
"sort"
)
// errNoMessageTypeID occurs when a protocol buffer does not have a message type ID.
// A message type ID is required for storing a protocol buffer in a message set.
var errNoMessageTypeID = errors.New("proto does not have a message type ID")
// The first two types (_MessageSet_Item and messageSet)
// model what the protocol compiler produces for the following protocol message:
// message MessageSet {
// repeated group Item = 1 {
// required int32 type_id = 2;
// required string message = 3;
// };
// }
// That is the MessageSet wire format. We can't use a proto to generate these
// because that would introduce a circular dependency between it and this package.
type _MessageSet_Item struct {
TypeId *int32 `protobuf:"varint,2,req,name=type_id"`
Message []byte `protobuf:"bytes,3,req,name=message"`
}
type messageSet struct {
Item []*_MessageSet_Item `protobuf:"group,1,rep"`
XXX_unrecognized []byte
// TODO: caching?
}
// Make sure messageSet is a Message.
var _ Message = (*messageSet)(nil)
// messageTypeIder is an interface satisfied by a protocol buffer type
// that may be stored in a MessageSet.
type messageTypeIder interface {
MessageTypeId() int32
}
func (ms *messageSet) find(pb Message) *_MessageSet_Item {
mti, ok := pb.(messageTypeIder)
if !ok {
return nil
}
id := mti.MessageTypeId()
for _, item := range ms.Item {
if *item.TypeId == id {
return item
}
}
return nil
}
func (ms *messageSet) Has(pb Message) bool {
if ms.find(pb) != nil {
return true
}
return false
}
func (ms *messageSet) Unmarshal(pb Message) error {
if item := ms.find(pb); item != nil {
return Unmarshal(item.Message, pb)
}
if _, ok := pb.(messageTypeIder); !ok {
return errNoMessageTypeID
}
return nil // TODO: return error instead?
}
func (ms *messageSet) Marshal(pb Message) error {
msg, err := Marshal(pb)
if err != nil {
return err
}
if item := ms.find(pb); item != nil {
// reuse existing item
item.Message = msg
return nil
}
mti, ok := pb.(messageTypeIder)
if !ok {
return errNoMessageTypeID
}
mtid := mti.MessageTypeId()
ms.Item = append(ms.Item, &_MessageSet_Item{
TypeId: &mtid,
Message: msg,
})
return nil
}
func (ms *messageSet) Reset() { *ms = messageSet{} }
func (ms *messageSet) String() string { return CompactTextString(ms) }
func (*messageSet) ProtoMessage() {}
// Support for the message_set_wire_format message option.
func skipVarint(buf []byte) []byte {
i := 0
for ; buf[i]&0x80 != 0; i++ {
}
return buf[i+1:]
}
// MarshalMessageSet encodes the extension map represented by m in the message set wire format.
// It is called by generated Marshal methods on protocol buffer messages with the message_set_wire_format option.
func MarshalMessageSet(m map[int32]Extension) ([]byte, error) {
if err := encodeExtensionMap(m); err != nil {
return nil, err
}
// Sort extension IDs to provide a deterministic encoding.
// See also enc_map in encode.go.
ids := make([]int, 0, len(m))
for id := range m {
ids = append(ids, int(id))
}
sort.Ints(ids)
ms := &messageSet{Item: make([]*_MessageSet_Item, 0, len(m))}
for _, id := range ids {
e := m[int32(id)]
// Remove the wire type and field number varint, as well as the length varint.
msg := skipVarint(skipVarint(e.enc))
ms.Item = append(ms.Item, &_MessageSet_Item{
TypeId: Int32(int32(id)),
Message: msg,
})
}
return Marshal(ms)
}
// UnmarshalMessageSet decodes the extension map encoded in buf in the message set wire format.
// It is called by generated Unmarshal methods on protocol buffer messages with the message_set_wire_format option.
func UnmarshalMessageSet(buf []byte, m map[int32]Extension) error {
ms := new(messageSet)
if err := Unmarshal(buf, ms); err != nil {
return err
}
for _, item := range ms.Item {
id := *item.TypeId
msg := item.Message
// Restore wire type and field number varint, plus length varint.
// Be careful to preserve duplicate items.
b := EncodeVarint(uint64(id)<<3 | WireBytes)
if ext, ok := m[id]; ok {
// Existing data; rip off the tag and length varint
// so we join the new data correctly.
// We can assume that ext.enc is set because we are unmarshaling.
o := ext.enc[len(b):] // skip wire type and field number
_, n := DecodeVarint(o) // calculate length of length varint
o = o[n:] // skip length varint
msg = append(o, msg...) // join old data and new data
}
b = append(b, EncodeVarint(uint64(len(msg)))...)
b = append(b, msg...)
m[id] = Extension{enc: b}
}
return nil
}
// MarshalMessageSetJSON encodes the extension map represented by m in JSON format.
// It is called by generated MarshalJSON methods on protocol buffer messages with the message_set_wire_format option.
func MarshalMessageSetJSON(m map[int32]Extension) ([]byte, error) {
var b bytes.Buffer
b.WriteByte('{')
// Process the map in key order for deterministic output.
ids := make([]int32, 0, len(m))
for id := range m {
ids = append(ids, id)
}
sort.Sort(int32Slice(ids)) // int32Slice defined in text.go
for i, id := range ids {
ext := m[id]
if i > 0 {
b.WriteByte(',')
}
msd, ok := messageSetMap[id]
if !ok {
// Unknown type; we can't render it, so skip it.
continue
}
fmt.Fprintf(&b, `"[%s]":`, msd.name)
x := ext.value
if x == nil {
x = reflect.New(msd.t.Elem()).Interface()
if err := Unmarshal(ext.enc, x.(Message)); err != nil {
return nil, err
}
}
d, err := json.Marshal(x)
if err != nil {
return nil, err
}
b.Write(d)
}
b.WriteByte('}')
return b.Bytes(), nil
}
// UnmarshalMessageSetJSON decodes the extension map encoded in buf in JSON format.
// It is called by generated UnmarshalJSON methods on protocol buffer messages with the message_set_wire_format option.
func UnmarshalMessageSetJSON(buf []byte, m map[int32]Extension) error {
// Common-case fast path.
if len(buf) == 0 || bytes.Equal(buf, []byte("{}")) {
return nil
}
// This is fairly tricky, and it's not clear that it is needed.
return errors.New("TODO: UnmarshalMessageSetJSON not yet implemented")
}
// A global registry of types that can be used in a MessageSet.
var messageSetMap = make(map[int32]messageSetDesc)
type messageSetDesc struct {
t reflect.Type // pointer to struct
name string
}
// RegisterMessageSetType is called from the generated code.
func RegisterMessageSetType(m Message, fieldNum int32, name string) {
messageSetMap[fieldNum] = messageSetDesc{
t: reflect.TypeOf(m),
name: name,
}
}

479
vendor/github.com/golang/protobuf/proto/pointer_reflect.go generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// +build appengine
// This file contains an implementation of proto field accesses using package reflect.
// It is slower than the code in pointer_unsafe.go but it avoids package unsafe and can
// be used on App Engine.
package proto
import (
"math"
"reflect"
)
// A structPointer is a pointer to a struct.
type structPointer struct {
v reflect.Value
}
// toStructPointer returns a structPointer equivalent to the given reflect value.
// The reflect value must itself be a pointer to a struct.
func toStructPointer(v reflect.Value) structPointer {
return structPointer{v}
}
// IsNil reports whether p is nil.
func structPointer_IsNil(p structPointer) bool {
return p.v.IsNil()
}
// Interface returns the struct pointer as an interface value.
func structPointer_Interface(p structPointer, _ reflect.Type) interface{} {
return p.v.Interface()
}
// A field identifies a field in a struct, accessible from a structPointer.
// In this implementation, a field is identified by the sequence of field indices
// passed to reflect's FieldByIndex.
type field []int
// toField returns a field equivalent to the given reflect field.
func toField(f *reflect.StructField) field {
return f.Index
}
// invalidField is an invalid field identifier.
var invalidField = field(nil)
// IsValid reports whether the field identifier is valid.
func (f field) IsValid() bool { return f != nil }
// field returns the given field in the struct as a reflect value.
func structPointer_field(p structPointer, f field) reflect.Value {
// Special case: an extension map entry with a value of type T
// passes a *T to the struct-handling code with a zero field,
// expecting that it will be treated as equivalent to *struct{ X T },
// which has the same memory layout. We have to handle that case
// specially, because reflect will panic if we call FieldByIndex on a
// non-struct.
if f == nil {
return p.v.Elem()
}
return p.v.Elem().FieldByIndex(f)
}
// ifield returns the given field in the struct as an interface value.
func structPointer_ifield(p structPointer, f field) interface{} {
return structPointer_field(p, f).Addr().Interface()
}
// Bytes returns the address of a []byte field in the struct.
func structPointer_Bytes(p structPointer, f field) *[]byte {
return structPointer_ifield(p, f).(*[]byte)
}
// BytesSlice returns the address of a [][]byte field in the struct.
func structPointer_BytesSlice(p structPointer, f field) *[][]byte {
return structPointer_ifield(p, f).(*[][]byte)
}
// Bool returns the address of a *bool field in the struct.
func structPointer_Bool(p structPointer, f field) **bool {
return structPointer_ifield(p, f).(**bool)
}
// BoolVal returns the address of a bool field in the struct.
func structPointer_BoolVal(p structPointer, f field) *bool {
return structPointer_ifield(p, f).(*bool)
}
// BoolSlice returns the address of a []bool field in the struct.
func structPointer_BoolSlice(p structPointer, f field) *[]bool {
return structPointer_ifield(p, f).(*[]bool)
}
// String returns the address of a *string field in the struct.
func structPointer_String(p structPointer, f field) **string {
return structPointer_ifield(p, f).(**string)
}
// StringVal returns the address of a string field in the struct.
func structPointer_StringVal(p structPointer, f field) *string {
return structPointer_ifield(p, f).(*string)
}
// StringSlice returns the address of a []string field in the struct.
func structPointer_StringSlice(p structPointer, f field) *[]string {
return structPointer_ifield(p, f).(*[]string)
}
// ExtMap returns the address of an extension map field in the struct.
func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
return structPointer_ifield(p, f).(*map[int32]Extension)
}
// NewAt returns the reflect.Value for a pointer to a field in the struct.
func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
return structPointer_field(p, f).Addr()
}
// SetStructPointer writes a *struct field in the struct.
func structPointer_SetStructPointer(p structPointer, f field, q structPointer) {
structPointer_field(p, f).Set(q.v)
}
// GetStructPointer reads a *struct field in the struct.
func structPointer_GetStructPointer(p structPointer, f field) structPointer {
return structPointer{structPointer_field(p, f)}
}
// StructPointerSlice the address of a []*struct field in the struct.
func structPointer_StructPointerSlice(p structPointer, f field) structPointerSlice {
return structPointerSlice{structPointer_field(p, f)}
}
// A structPointerSlice represents the address of a slice of pointers to structs
// (themselves messages or groups). That is, v.Type() is *[]*struct{...}.
type structPointerSlice struct {
v reflect.Value
}
func (p structPointerSlice) Len() int { return p.v.Len() }
func (p structPointerSlice) Index(i int) structPointer { return structPointer{p.v.Index(i)} }
func (p structPointerSlice) Append(q structPointer) {
p.v.Set(reflect.Append(p.v, q.v))
}
var (
int32Type = reflect.TypeOf(int32(0))
uint32Type = reflect.TypeOf(uint32(0))
float32Type = reflect.TypeOf(float32(0))
int64Type = reflect.TypeOf(int64(0))
uint64Type = reflect.TypeOf(uint64(0))
float64Type = reflect.TypeOf(float64(0))
)
// A word32 represents a field of type *int32, *uint32, *float32, or *enum.
// That is, v.Type() is *int32, *uint32, *float32, or *enum and v is assignable.
type word32 struct {
v reflect.Value
}
// IsNil reports whether p is nil.
func word32_IsNil(p word32) bool {
return p.v.IsNil()
}
// Set sets p to point at a newly allocated word with bits set to x.
func word32_Set(p word32, o *Buffer, x uint32) {
t := p.v.Type().Elem()
switch t {
case int32Type:
if len(o.int32s) == 0 {
o.int32s = make([]int32, uint32PoolSize)
}
o.int32s[0] = int32(x)
p.v.Set(reflect.ValueOf(&o.int32s[0]))
o.int32s = o.int32s[1:]
return
case uint32Type:
if len(o.uint32s) == 0 {
o.uint32s = make([]uint32, uint32PoolSize)
}
o.uint32s[0] = x
p.v.Set(reflect.ValueOf(&o.uint32s[0]))
o.uint32s = o.uint32s[1:]
return
case float32Type:
if len(o.float32s) == 0 {
o.float32s = make([]float32, uint32PoolSize)
}
o.float32s[0] = math.Float32frombits(x)
p.v.Set(reflect.ValueOf(&o.float32s[0]))
o.float32s = o.float32s[1:]
return
}
// must be enum
p.v.Set(reflect.New(t))
p.v.Elem().SetInt(int64(int32(x)))
}
// Get gets the bits pointed at by p, as a uint32.
func word32_Get(p word32) uint32 {
elem := p.v.Elem()
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32 returns a reference to a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32(p structPointer, f field) word32 {
return word32{structPointer_field(p, f)}
}
// A word32Val represents a field of type int32, uint32, float32, or enum.
// That is, v.Type() is int32, uint32, float32, or enum and v is assignable.
type word32Val struct {
v reflect.Value
}
// Set sets *p to x.
func word32Val_Set(p word32Val, x uint32) {
switch p.v.Type() {
case int32Type:
p.v.SetInt(int64(x))
return
case uint32Type:
p.v.SetUint(uint64(x))
return
case float32Type:
p.v.SetFloat(float64(math.Float32frombits(x)))
return
}
// must be enum
p.v.SetInt(int64(int32(x)))
}
// Get gets the bits pointed at by p, as a uint32.
func word32Val_Get(p word32Val) uint32 {
elem := p.v
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32Val returns a reference to a int32, uint32, float32, or enum field in the struct.
func structPointer_Word32Val(p structPointer, f field) word32Val {
return word32Val{structPointer_field(p, f)}
}
// A word32Slice is a slice of 32-bit values.
// That is, v.Type() is []int32, []uint32, []float32, or []enum.
type word32Slice struct {
v reflect.Value
}
func (p word32Slice) Append(x uint32) {
n, m := p.v.Len(), p.v.Cap()
if n < m {
p.v.SetLen(n + 1)
} else {
t := p.v.Type().Elem()
p.v.Set(reflect.Append(p.v, reflect.Zero(t)))
}
elem := p.v.Index(n)
switch elem.Kind() {
case reflect.Int32:
elem.SetInt(int64(int32(x)))
case reflect.Uint32:
elem.SetUint(uint64(x))
case reflect.Float32:
elem.SetFloat(float64(math.Float32frombits(x)))
}
}
func (p word32Slice) Len() int {
return p.v.Len()
}
func (p word32Slice) Index(i int) uint32 {
elem := p.v.Index(i)
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32Slice returns a reference to a []int32, []uint32, []float32, or []enum field in the struct.
func structPointer_Word32Slice(p structPointer, f field) word32Slice {
return word32Slice{structPointer_field(p, f)}
}
// word64 is like word32 but for 64-bit values.
type word64 struct {
v reflect.Value
}
func word64_Set(p word64, o *Buffer, x uint64) {
t := p.v.Type().Elem()
switch t {
case int64Type:
if len(o.int64s) == 0 {
o.int64s = make([]int64, uint64PoolSize)
}
o.int64s[0] = int64(x)
p.v.Set(reflect.ValueOf(&o.int64s[0]))
o.int64s = o.int64s[1:]
return
case uint64Type:
if len(o.uint64s) == 0 {
o.uint64s = make([]uint64, uint64PoolSize)
}
o.uint64s[0] = x
p.v.Set(reflect.ValueOf(&o.uint64s[0]))
o.uint64s = o.uint64s[1:]
return
case float64Type:
if len(o.float64s) == 0 {
o.float64s = make([]float64, uint64PoolSize)
}
o.float64s[0] = math.Float64frombits(x)
p.v.Set(reflect.ValueOf(&o.float64s[0]))
o.float64s = o.float64s[1:]
return
}
panic("unreachable")
}
func word64_IsNil(p word64) bool {
return p.v.IsNil()
}
func word64_Get(p word64) uint64 {
elem := p.v.Elem()
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return elem.Uint()
case reflect.Float64:
return math.Float64bits(elem.Float())
}
panic("unreachable")
}
func structPointer_Word64(p structPointer, f field) word64 {
return word64{structPointer_field(p, f)}
}
// word64Val is like word32Val but for 64-bit values.
type word64Val struct {
v reflect.Value
}
func word64Val_Set(p word64Val, o *Buffer, x uint64) {
switch p.v.Type() {
case int64Type:
p.v.SetInt(int64(x))
return
case uint64Type:
p.v.SetUint(x)
return
case float64Type:
p.v.SetFloat(math.Float64frombits(x))
return
}
panic("unreachable")
}
func word64Val_Get(p word64Val) uint64 {
elem := p.v
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return elem.Uint()
case reflect.Float64:
return math.Float64bits(elem.Float())
}
panic("unreachable")
}
func structPointer_Word64Val(p structPointer, f field) word64Val {
return word64Val{structPointer_field(p, f)}
}
type word64Slice struct {
v reflect.Value
}
func (p word64Slice) Append(x uint64) {
n, m := p.v.Len(), p.v.Cap()
if n < m {
p.v.SetLen(n + 1)
} else {
t := p.v.Type().Elem()
p.v.Set(reflect.Append(p.v, reflect.Zero(t)))
}
elem := p.v.Index(n)
switch elem.Kind() {
case reflect.Int64:
elem.SetInt(int64(int64(x)))
case reflect.Uint64:
elem.SetUint(uint64(x))
case reflect.Float64:
elem.SetFloat(float64(math.Float64frombits(x)))
}
}
func (p word64Slice) Len() int {
return p.v.Len()
}
func (p word64Slice) Index(i int) uint64 {
elem := p.v.Index(i)
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return uint64(elem.Uint())
case reflect.Float64:
return math.Float64bits(float64(elem.Float()))
}
panic("unreachable")
}
func structPointer_Word64Slice(p structPointer, f field) word64Slice {
return word64Slice{structPointer_field(p, f)}
}

266
vendor/github.com/golang/protobuf/proto/pointer_unsafe.go generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// +build !appengine
// This file contains the implementation of the proto field accesses using package unsafe.
package proto
import (
"reflect"
"unsafe"
)
// NOTE: These type_Foo functions would more idiomatically be methods,
// but Go does not allow methods on pointer types, and we must preserve
// some pointer type for the garbage collector. We use these
// funcs with clunky names as our poor approximation to methods.
//
// An alternative would be
// type structPointer struct { p unsafe.Pointer }
// but that does not registerize as well.
// A structPointer is a pointer to a struct.
type structPointer unsafe.Pointer
// toStructPointer returns a structPointer equivalent to the given reflect value.
func toStructPointer(v reflect.Value) structPointer {
return structPointer(unsafe.Pointer(v.Pointer()))
}
// IsNil reports whether p is nil.
func structPointer_IsNil(p structPointer) bool {
return p == nil
}
// Interface returns the struct pointer, assumed to have element type t,
// as an interface value.
func structPointer_Interface(p structPointer, t reflect.Type) interface{} {
return reflect.NewAt(t, unsafe.Pointer(p)).Interface()
}
// A field identifies a field in a struct, accessible from a structPointer.
// In this implementation, a field is identified by its byte offset from the start of the struct.
type field uintptr
// toField returns a field equivalent to the given reflect field.
func toField(f *reflect.StructField) field {
return field(f.Offset)
}
// invalidField is an invalid field identifier.
const invalidField = ^field(0)
// IsValid reports whether the field identifier is valid.
func (f field) IsValid() bool {
return f != ^field(0)
}
// Bytes returns the address of a []byte field in the struct.
func structPointer_Bytes(p structPointer, f field) *[]byte {
return (*[]byte)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BytesSlice returns the address of a [][]byte field in the struct.
func structPointer_BytesSlice(p structPointer, f field) *[][]byte {
return (*[][]byte)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// Bool returns the address of a *bool field in the struct.
func structPointer_Bool(p structPointer, f field) **bool {
return (**bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BoolVal returns the address of a bool field in the struct.
func structPointer_BoolVal(p structPointer, f field) *bool {
return (*bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BoolSlice returns the address of a []bool field in the struct.
func structPointer_BoolSlice(p structPointer, f field) *[]bool {
return (*[]bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// String returns the address of a *string field in the struct.
func structPointer_String(p structPointer, f field) **string {
return (**string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StringVal returns the address of a string field in the struct.
func structPointer_StringVal(p structPointer, f field) *string {
return (*string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StringSlice returns the address of a []string field in the struct.
func structPointer_StringSlice(p structPointer, f field) *[]string {
return (*[]string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// ExtMap returns the address of an extension map field in the struct.
func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
return (*map[int32]Extension)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// NewAt returns the reflect.Value for a pointer to a field in the struct.
func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
return reflect.NewAt(typ, unsafe.Pointer(uintptr(p)+uintptr(f)))
}
// SetStructPointer writes a *struct field in the struct.
func structPointer_SetStructPointer(p structPointer, f field, q structPointer) {
*(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f))) = q
}
// GetStructPointer reads a *struct field in the struct.
func structPointer_GetStructPointer(p structPointer, f field) structPointer {
return *(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StructPointerSlice the address of a []*struct field in the struct.
func structPointer_StructPointerSlice(p structPointer, f field) *structPointerSlice {
return (*structPointerSlice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// A structPointerSlice represents a slice of pointers to structs (themselves submessages or groups).
type structPointerSlice []structPointer
func (v *structPointerSlice) Len() int { return len(*v) }
func (v *structPointerSlice) Index(i int) structPointer { return (*v)[i] }
func (v *structPointerSlice) Append(p structPointer) { *v = append(*v, p) }
// A word32 is the address of a "pointer to 32-bit value" field.
type word32 **uint32
// IsNil reports whether *v is nil.
func word32_IsNil(p word32) bool {
return *p == nil
}
// Set sets *v to point at a newly allocated word set to x.
func word32_Set(p word32, o *Buffer, x uint32) {
if len(o.uint32s) == 0 {
o.uint32s = make([]uint32, uint32PoolSize)
}
o.uint32s[0] = x
*p = &o.uint32s[0]
o.uint32s = o.uint32s[1:]
}
// Get gets the value pointed at by *v.
func word32_Get(p word32) uint32 {
return **p
}
// Word32 returns the address of a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32(p structPointer, f field) word32 {
return word32((**uint32)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// A word32Val is the address of a 32-bit value field.
type word32Val *uint32
// Set sets *p to x.
func word32Val_Set(p word32Val, x uint32) {
*p = x
}
// Get gets the value pointed at by p.
func word32Val_Get(p word32Val) uint32 {
return *p
}
// Word32Val returns the address of a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32Val(p structPointer, f field) word32Val {
return word32Val((*uint32)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// A word32Slice is a slice of 32-bit values.
type word32Slice []uint32
func (v *word32Slice) Append(x uint32) { *v = append(*v, x) }
func (v *word32Slice) Len() int { return len(*v) }
func (v *word32Slice) Index(i int) uint32 { return (*v)[i] }
// Word32Slice returns the address of a []int32, []uint32, []float32, or []enum field in the struct.
func structPointer_Word32Slice(p structPointer, f field) *word32Slice {
return (*word32Slice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// word64 is like word32 but for 64-bit values.
type word64 **uint64
func word64_Set(p word64, o *Buffer, x uint64) {
if len(o.uint64s) == 0 {
o.uint64s = make([]uint64, uint64PoolSize)
}
o.uint64s[0] = x
*p = &o.uint64s[0]
o.uint64s = o.uint64s[1:]
}
func word64_IsNil(p word64) bool {
return *p == nil
}
func word64_Get(p word64) uint64 {
return **p
}
func structPointer_Word64(p structPointer, f field) word64 {
return word64((**uint64)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// word64Val is like word32Val but for 64-bit values.
type word64Val *uint64
func word64Val_Set(p word64Val, o *Buffer, x uint64) {
*p = x
}
func word64Val_Get(p word64Val) uint64 {
return *p
}
func structPointer_Word64Val(p structPointer, f field) word64Val {
return word64Val((*uint64)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// word64Slice is like word32Slice but for 64-bit values.
type word64Slice []uint64
func (v *word64Slice) Append(x uint64) { *v = append(*v, x) }
func (v *word64Slice) Len() int { return len(*v) }
func (v *word64Slice) Index(i int) uint64 { return (*v)[i] }
func structPointer_Word64Slice(p structPointer, f field) *word64Slice {
return (*word64Slice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}

846
vendor/github.com/golang/protobuf/proto/properties.go generated vendored Normal file
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@ -0,0 +1,846 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Routines for encoding data into the wire format for protocol buffers.
*/
import (
"fmt"
"log"
"os"
"reflect"
"sort"
"strconv"
"strings"
"sync"
)
const debug bool = false
// Constants that identify the encoding of a value on the wire.
const (
WireVarint = 0
WireFixed64 = 1
WireBytes = 2
WireStartGroup = 3
WireEndGroup = 4
WireFixed32 = 5
)
const startSize = 10 // initial slice/string sizes
// Encoders are defined in encode.go
// An encoder outputs the full representation of a field, including its
// tag and encoder type.
type encoder func(p *Buffer, prop *Properties, base structPointer) error
// A valueEncoder encodes a single integer in a particular encoding.
type valueEncoder func(o *Buffer, x uint64) error
// Sizers are defined in encode.go
// A sizer returns the encoded size of a field, including its tag and encoder
// type.
type sizer func(prop *Properties, base structPointer) int
// A valueSizer returns the encoded size of a single integer in a particular
// encoding.
type valueSizer func(x uint64) int
// Decoders are defined in decode.go
// A decoder creates a value from its wire representation.
// Unrecognized subelements are saved in unrec.
type decoder func(p *Buffer, prop *Properties, base structPointer) error
// A valueDecoder decodes a single integer in a particular encoding.
type valueDecoder func(o *Buffer) (x uint64, err error)
// A oneofMarshaler does the marshaling for all oneof fields in a message.
type oneofMarshaler func(Message, *Buffer) error
// A oneofUnmarshaler does the unmarshaling for a oneof field in a message.
type oneofUnmarshaler func(Message, int, int, *Buffer) (bool, error)
// A oneofSizer does the sizing for all oneof fields in a message.
type oneofSizer func(Message) int
// tagMap is an optimization over map[int]int for typical protocol buffer
// use-cases. Encoded protocol buffers are often in tag order with small tag
// numbers.
type tagMap struct {
fastTags []int
slowTags map[int]int
}
// tagMapFastLimit is the upper bound on the tag number that will be stored in
// the tagMap slice rather than its map.
const tagMapFastLimit = 1024
func (p *tagMap) get(t int) (int, bool) {
if t > 0 && t < tagMapFastLimit {
if t >= len(p.fastTags) {
return 0, false
}
fi := p.fastTags[t]
return fi, fi >= 0
}
fi, ok := p.slowTags[t]
return fi, ok
}
func (p *tagMap) put(t int, fi int) {
if t > 0 && t < tagMapFastLimit {
for len(p.fastTags) < t+1 {
p.fastTags = append(p.fastTags, -1)
}
p.fastTags[t] = fi
return
}
if p.slowTags == nil {
p.slowTags = make(map[int]int)
}
p.slowTags[t] = fi
}
// StructProperties represents properties for all the fields of a struct.
// decoderTags and decoderOrigNames should only be used by the decoder.
type StructProperties struct {
Prop []*Properties // properties for each field
reqCount int // required count
decoderTags tagMap // map from proto tag to struct field number
decoderOrigNames map[string]int // map from original name to struct field number
order []int // list of struct field numbers in tag order
unrecField field // field id of the XXX_unrecognized []byte field
extendable bool // is this an extendable proto
oneofMarshaler oneofMarshaler
oneofUnmarshaler oneofUnmarshaler
oneofSizer oneofSizer
stype reflect.Type
// OneofTypes contains information about the oneof fields in this message.
// It is keyed by the original name of a field.
OneofTypes map[string]*OneofProperties
}
// OneofProperties represents information about a specific field in a oneof.
type OneofProperties struct {
Type reflect.Type // pointer to generated struct type for this oneof field
Field int // struct field number of the containing oneof in the message
Prop *Properties
}
// Implement the sorting interface so we can sort the fields in tag order, as recommended by the spec.
// See encode.go, (*Buffer).enc_struct.
func (sp *StructProperties) Len() int { return len(sp.order) }
func (sp *StructProperties) Less(i, j int) bool {
return sp.Prop[sp.order[i]].Tag < sp.Prop[sp.order[j]].Tag
}
func (sp *StructProperties) Swap(i, j int) { sp.order[i], sp.order[j] = sp.order[j], sp.order[i] }
// Properties represents the protocol-specific behavior of a single struct field.
type Properties struct {
Name string // name of the field, for error messages
OrigName string // original name before protocol compiler (always set)
JSONName string // name to use for JSON; determined by protoc
Wire string
WireType int
Tag int
Required bool
Optional bool
Repeated bool
Packed bool // relevant for repeated primitives only
Enum string // set for enum types only
proto3 bool // whether this is known to be a proto3 field; set for []byte only
oneof bool // whether this is a oneof field
Default string // default value
HasDefault bool // whether an explicit default was provided
def_uint64 uint64
enc encoder
valEnc valueEncoder // set for bool and numeric types only
field field
tagcode []byte // encoding of EncodeVarint((Tag<<3)|WireType)
tagbuf [8]byte
stype reflect.Type // set for struct types only
sprop *StructProperties // set for struct types only
isMarshaler bool
isUnmarshaler bool
mtype reflect.Type // set for map types only
mkeyprop *Properties // set for map types only
mvalprop *Properties // set for map types only
size sizer
valSize valueSizer // set for bool and numeric types only
dec decoder
valDec valueDecoder // set for bool and numeric types only
// If this is a packable field, this will be the decoder for the packed version of the field.
packedDec decoder
}
// String formats the properties in the protobuf struct field tag style.
func (p *Properties) String() string {
s := p.Wire
s = ","
s += strconv.Itoa(p.Tag)
if p.Required {
s += ",req"
}
if p.Optional {
s += ",opt"
}
if p.Repeated {
s += ",rep"
}
if p.Packed {
s += ",packed"
}
s += ",name=" + p.OrigName
if p.JSONName != p.OrigName {
s += ",json=" + p.JSONName
}
if p.proto3 {
s += ",proto3"
}
if p.oneof {
s += ",oneof"
}
if len(p.Enum) > 0 {
s += ",enum=" + p.Enum
}
if p.HasDefault {
s += ",def=" + p.Default
}
return s
}
// Parse populates p by parsing a string in the protobuf struct field tag style.
func (p *Properties) Parse(s string) {
// "bytes,49,opt,name=foo,def=hello!"
fields := strings.Split(s, ",") // breaks def=, but handled below.
if len(fields) < 2 {
fmt.Fprintf(os.Stderr, "proto: tag has too few fields: %q\n", s)
return
}
p.Wire = fields[0]
switch p.Wire {
case "varint":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeVarint
p.valDec = (*Buffer).DecodeVarint
p.valSize = sizeVarint
case "fixed32":
p.WireType = WireFixed32
p.valEnc = (*Buffer).EncodeFixed32
p.valDec = (*Buffer).DecodeFixed32
p.valSize = sizeFixed32
case "fixed64":
p.WireType = WireFixed64
p.valEnc = (*Buffer).EncodeFixed64
p.valDec = (*Buffer).DecodeFixed64
p.valSize = sizeFixed64
case "zigzag32":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeZigzag32
p.valDec = (*Buffer).DecodeZigzag32
p.valSize = sizeZigzag32
case "zigzag64":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeZigzag64
p.valDec = (*Buffer).DecodeZigzag64
p.valSize = sizeZigzag64
case "bytes", "group":
p.WireType = WireBytes
// no numeric converter for non-numeric types
default:
fmt.Fprintf(os.Stderr, "proto: tag has unknown wire type: %q\n", s)
return
}
var err error
p.Tag, err = strconv.Atoi(fields[1])
if err != nil {
return
}
for i := 2; i < len(fields); i++ {
f := fields[i]
switch {
case f == "req":
p.Required = true
case f == "opt":
p.Optional = true
case f == "rep":
p.Repeated = true
case f == "packed":
p.Packed = true
case strings.HasPrefix(f, "name="):
p.OrigName = f[5:]
case strings.HasPrefix(f, "json="):
p.JSONName = f[5:]
case strings.HasPrefix(f, "enum="):
p.Enum = f[5:]
case f == "proto3":
p.proto3 = true
case f == "oneof":
p.oneof = true
case strings.HasPrefix(f, "def="):
p.HasDefault = true
p.Default = f[4:] // rest of string
if i+1 < len(fields) {
// Commas aren't escaped, and def is always last.
p.Default += "," + strings.Join(fields[i+1:], ",")
break
}
}
}
}
func logNoSliceEnc(t1, t2 reflect.Type) {
fmt.Fprintf(os.Stderr, "proto: no slice oenc for %T = []%T\n", t1, t2)
}
var protoMessageType = reflect.TypeOf((*Message)(nil)).Elem()
// Initialize the fields for encoding and decoding.
func (p *Properties) setEncAndDec(typ reflect.Type, f *reflect.StructField, lockGetProp bool) {
p.enc = nil
p.dec = nil
p.size = nil
switch t1 := typ; t1.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no coders for %v\n", t1)
// proto3 scalar types
case reflect.Bool:
p.enc = (*Buffer).enc_proto3_bool
p.dec = (*Buffer).dec_proto3_bool
p.size = size_proto3_bool
case reflect.Int32:
p.enc = (*Buffer).enc_proto3_int32
p.dec = (*Buffer).dec_proto3_int32
p.size = size_proto3_int32
case reflect.Uint32:
p.enc = (*Buffer).enc_proto3_uint32
p.dec = (*Buffer).dec_proto3_int32 // can reuse
p.size = size_proto3_uint32
case reflect.Int64, reflect.Uint64:
p.enc = (*Buffer).enc_proto3_int64
p.dec = (*Buffer).dec_proto3_int64
p.size = size_proto3_int64
case reflect.Float32:
p.enc = (*Buffer).enc_proto3_uint32 // can just treat them as bits
p.dec = (*Buffer).dec_proto3_int32
p.size = size_proto3_uint32
case reflect.Float64:
p.enc = (*Buffer).enc_proto3_int64 // can just treat them as bits
p.dec = (*Buffer).dec_proto3_int64
p.size = size_proto3_int64
case reflect.String:
p.enc = (*Buffer).enc_proto3_string
p.dec = (*Buffer).dec_proto3_string
p.size = size_proto3_string
case reflect.Ptr:
switch t2 := t1.Elem(); t2.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no encoder function for %v -> %v\n", t1, t2)
break
case reflect.Bool:
p.enc = (*Buffer).enc_bool
p.dec = (*Buffer).dec_bool
p.size = size_bool
case reflect.Int32:
p.enc = (*Buffer).enc_int32
p.dec = (*Buffer).dec_int32
p.size = size_int32
case reflect.Uint32:
p.enc = (*Buffer).enc_uint32
p.dec = (*Buffer).dec_int32 // can reuse
p.size = size_uint32
case reflect.Int64, reflect.Uint64:
p.enc = (*Buffer).enc_int64
p.dec = (*Buffer).dec_int64
p.size = size_int64
case reflect.Float32:
p.enc = (*Buffer).enc_uint32 // can just treat them as bits
p.dec = (*Buffer).dec_int32
p.size = size_uint32
case reflect.Float64:
p.enc = (*Buffer).enc_int64 // can just treat them as bits
p.dec = (*Buffer).dec_int64
p.size = size_int64
case reflect.String:
p.enc = (*Buffer).enc_string
p.dec = (*Buffer).dec_string
p.size = size_string
case reflect.Struct:
p.stype = t1.Elem()
p.isMarshaler = isMarshaler(t1)
p.isUnmarshaler = isUnmarshaler(t1)
if p.Wire == "bytes" {
p.enc = (*Buffer).enc_struct_message
p.dec = (*Buffer).dec_struct_message
p.size = size_struct_message
} else {
p.enc = (*Buffer).enc_struct_group
p.dec = (*Buffer).dec_struct_group
p.size = size_struct_group
}
}
case reflect.Slice:
switch t2 := t1.Elem(); t2.Kind() {
default:
logNoSliceEnc(t1, t2)
break
case reflect.Bool:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_bool
p.size = size_slice_packed_bool
} else {
p.enc = (*Buffer).enc_slice_bool
p.size = size_slice_bool
}
p.dec = (*Buffer).dec_slice_bool
p.packedDec = (*Buffer).dec_slice_packed_bool
case reflect.Int32:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int32
p.size = size_slice_packed_int32
} else {
p.enc = (*Buffer).enc_slice_int32
p.size = size_slice_int32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case reflect.Uint32:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_uint32
p.size = size_slice_packed_uint32
} else {
p.enc = (*Buffer).enc_slice_uint32
p.size = size_slice_uint32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case reflect.Int64, reflect.Uint64:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int64
p.size = size_slice_packed_int64
} else {
p.enc = (*Buffer).enc_slice_int64
p.size = size_slice_int64
}
p.dec = (*Buffer).dec_slice_int64
p.packedDec = (*Buffer).dec_slice_packed_int64
case reflect.Uint8:
p.enc = (*Buffer).enc_slice_byte
p.dec = (*Buffer).dec_slice_byte
p.size = size_slice_byte
// This is a []byte, which is either a bytes field,
// or the value of a map field. In the latter case,
// we always encode an empty []byte, so we should not
// use the proto3 enc/size funcs.
// f == nil iff this is the key/value of a map field.
if p.proto3 && f != nil {
p.enc = (*Buffer).enc_proto3_slice_byte
p.size = size_proto3_slice_byte
}
case reflect.Float32, reflect.Float64:
switch t2.Bits() {
case 32:
// can just treat them as bits
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_uint32
p.size = size_slice_packed_uint32
} else {
p.enc = (*Buffer).enc_slice_uint32
p.size = size_slice_uint32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case 64:
// can just treat them as bits
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int64
p.size = size_slice_packed_int64
} else {
p.enc = (*Buffer).enc_slice_int64
p.size = size_slice_int64
}
p.dec = (*Buffer).dec_slice_int64
p.packedDec = (*Buffer).dec_slice_packed_int64
default:
logNoSliceEnc(t1, t2)
break
}
case reflect.String:
p.enc = (*Buffer).enc_slice_string
p.dec = (*Buffer).dec_slice_string
p.size = size_slice_string
case reflect.Ptr:
switch t3 := t2.Elem(); t3.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no ptr oenc for %T -> %T -> %T\n", t1, t2, t3)
break
case reflect.Struct:
p.stype = t2.Elem()
p.isMarshaler = isMarshaler(t2)
p.isUnmarshaler = isUnmarshaler(t2)
if p.Wire == "bytes" {
p.enc = (*Buffer).enc_slice_struct_message
p.dec = (*Buffer).dec_slice_struct_message
p.size = size_slice_struct_message
} else {
p.enc = (*Buffer).enc_slice_struct_group
p.dec = (*Buffer).dec_slice_struct_group
p.size = size_slice_struct_group
}
}
case reflect.Slice:
switch t2.Elem().Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no slice elem oenc for %T -> %T -> %T\n", t1, t2, t2.Elem())
break
case reflect.Uint8:
p.enc = (*Buffer).enc_slice_slice_byte
p.dec = (*Buffer).dec_slice_slice_byte
p.size = size_slice_slice_byte
}
}
case reflect.Map:
p.enc = (*Buffer).enc_new_map
p.dec = (*Buffer).dec_new_map
p.size = size_new_map
p.mtype = t1
p.mkeyprop = &Properties{}
p.mkeyprop.init(reflect.PtrTo(p.mtype.Key()), "Key", f.Tag.Get("protobuf_key"), nil, lockGetProp)
p.mvalprop = &Properties{}
vtype := p.mtype.Elem()
if vtype.Kind() != reflect.Ptr && vtype.Kind() != reflect.Slice {
// The value type is not a message (*T) or bytes ([]byte),
// so we need encoders for the pointer to this type.
vtype = reflect.PtrTo(vtype)
}
p.mvalprop.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp)
}
// precalculate tag code
wire := p.WireType
if p.Packed {
wire = WireBytes
}
x := uint32(p.Tag)<<3 | uint32(wire)
i := 0
for i = 0; x > 127; i++ {
p.tagbuf[i] = 0x80 | uint8(x&0x7F)
x >>= 7
}
p.tagbuf[i] = uint8(x)
p.tagcode = p.tagbuf[0 : i+1]
if p.stype != nil {
if lockGetProp {
p.sprop = GetProperties(p.stype)
} else {
p.sprop = getPropertiesLocked(p.stype)
}
}
}
var (
marshalerType = reflect.TypeOf((*Marshaler)(nil)).Elem()
unmarshalerType = reflect.TypeOf((*Unmarshaler)(nil)).Elem()
)
// isMarshaler reports whether type t implements Marshaler.
func isMarshaler(t reflect.Type) bool {
// We're checking for (likely) pointer-receiver methods
// so if t is not a pointer, something is very wrong.
// The calls above only invoke isMarshaler on pointer types.
if t.Kind() != reflect.Ptr {
panic("proto: misuse of isMarshaler")
}
return t.Implements(marshalerType)
}
// isUnmarshaler reports whether type t implements Unmarshaler.
func isUnmarshaler(t reflect.Type) bool {
// We're checking for (likely) pointer-receiver methods
// so if t is not a pointer, something is very wrong.
// The calls above only invoke isUnmarshaler on pointer types.
if t.Kind() != reflect.Ptr {
panic("proto: misuse of isUnmarshaler")
}
return t.Implements(unmarshalerType)
}
// Init populates the properties from a protocol buffer struct tag.
func (p *Properties) Init(typ reflect.Type, name, tag string, f *reflect.StructField) {
p.init(typ, name, tag, f, true)
}
func (p *Properties) init(typ reflect.Type, name, tag string, f *reflect.StructField, lockGetProp bool) {
// "bytes,49,opt,def=hello!"
p.Name = name
p.OrigName = name
if f != nil {
p.field = toField(f)
}
if tag == "" {
return
}
p.Parse(tag)
p.setEncAndDec(typ, f, lockGetProp)
}
var (
propertiesMu sync.RWMutex
propertiesMap = make(map[reflect.Type]*StructProperties)
)
// GetProperties returns the list of properties for the type represented by t.
// t must represent a generated struct type of a protocol message.
func GetProperties(t reflect.Type) *StructProperties {
if t.Kind() != reflect.Struct {
panic("proto: type must have kind struct")
}
// Most calls to GetProperties in a long-running program will be
// retrieving details for types we have seen before.
propertiesMu.RLock()
sprop, ok := propertiesMap[t]
propertiesMu.RUnlock()
if ok {
if collectStats {
stats.Chit++
}
return sprop
}
propertiesMu.Lock()
sprop = getPropertiesLocked(t)
propertiesMu.Unlock()
return sprop
}
// getPropertiesLocked requires that propertiesMu is held.
func getPropertiesLocked(t reflect.Type) *StructProperties {
if prop, ok := propertiesMap[t]; ok {
if collectStats {
stats.Chit++
}
return prop
}
if collectStats {
stats.Cmiss++
}
prop := new(StructProperties)
// in case of recursive protos, fill this in now.
propertiesMap[t] = prop
// build properties
prop.extendable = reflect.PtrTo(t).Implements(extendableProtoType)
prop.unrecField = invalidField
prop.Prop = make([]*Properties, t.NumField())
prop.order = make([]int, t.NumField())
for i := 0; i < t.NumField(); i++ {
f := t.Field(i)
p := new(Properties)
name := f.Name
p.init(f.Type, name, f.Tag.Get("protobuf"), &f, false)
if f.Name == "XXX_extensions" { // special case
p.enc = (*Buffer).enc_map
p.dec = nil // not needed
p.size = size_map
}
if f.Name == "XXX_unrecognized" { // special case
prop.unrecField = toField(&f)
}
oneof := f.Tag.Get("protobuf_oneof") != "" // special case
prop.Prop[i] = p
prop.order[i] = i
if debug {
print(i, " ", f.Name, " ", t.String(), " ")
if p.Tag > 0 {
print(p.String())
}
print("\n")
}
if p.enc == nil && !strings.HasPrefix(f.Name, "XXX_") && !oneof {
fmt.Fprintln(os.Stderr, "proto: no encoder for", f.Name, f.Type.String(), "[GetProperties]")
}
}
// Re-order prop.order.
sort.Sort(prop)
type oneofMessage interface {
XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{})
}
if om, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); ok {
var oots []interface{}
prop.oneofMarshaler, prop.oneofUnmarshaler, prop.oneofSizer, oots = om.XXX_OneofFuncs()
prop.stype = t
// Interpret oneof metadata.
prop.OneofTypes = make(map[string]*OneofProperties)
for _, oot := range oots {
oop := &OneofProperties{
Type: reflect.ValueOf(oot).Type(), // *T
Prop: new(Properties),
}
sft := oop.Type.Elem().Field(0)
oop.Prop.Name = sft.Name
oop.Prop.Parse(sft.Tag.Get("protobuf"))
// There will be exactly one interface field that
// this new value is assignable to.
for i := 0; i < t.NumField(); i++ {
f := t.Field(i)
if f.Type.Kind() != reflect.Interface {
continue
}
if !oop.Type.AssignableTo(f.Type) {
continue
}
oop.Field = i
break
}
prop.OneofTypes[oop.Prop.OrigName] = oop
}
}
// build required counts
// build tags
reqCount := 0
prop.decoderOrigNames = make(map[string]int)
for i, p := range prop.Prop {
if strings.HasPrefix(p.Name, "XXX_") {
// Internal fields should not appear in tags/origNames maps.
// They are handled specially when encoding and decoding.
continue
}
if p.Required {
reqCount++
}
prop.decoderTags.put(p.Tag, i)
prop.decoderOrigNames[p.OrigName] = i
}
prop.reqCount = reqCount
return prop
}
// Return the Properties object for the x[0]'th field of the structure.
func propByIndex(t reflect.Type, x []int) *Properties {
if len(x) != 1 {
fmt.Fprintf(os.Stderr, "proto: field index dimension %d (not 1) for type %s\n", len(x), t)
return nil
}
prop := GetProperties(t)
return prop.Prop[x[0]]
}
// Get the address and type of a pointer to a struct from an interface.
func getbase(pb Message) (t reflect.Type, b structPointer, err error) {
if pb == nil {
err = ErrNil
return
}
// get the reflect type of the pointer to the struct.
t = reflect.TypeOf(pb)
// get the address of the struct.
value := reflect.ValueOf(pb)
b = toStructPointer(value)
return
}
// A global registry of enum types.
// The generated code will register the generated maps by calling RegisterEnum.
var enumValueMaps = make(map[string]map[string]int32)
// RegisterEnum is called from the generated code to install the enum descriptor
// maps into the global table to aid parsing text format protocol buffers.
func RegisterEnum(typeName string, unusedNameMap map[int32]string, valueMap map[string]int32) {
if _, ok := enumValueMaps[typeName]; ok {
panic("proto: duplicate enum registered: " + typeName)
}
enumValueMaps[typeName] = valueMap
}
// EnumValueMap returns the mapping from names to integers of the
// enum type enumType, or a nil if not found.
func EnumValueMap(enumType string) map[string]int32 {
return enumValueMaps[enumType]
}
// A registry of all linked message types.
// The string is a fully-qualified proto name ("pkg.Message").
var (
protoTypes = make(map[string]reflect.Type)
revProtoTypes = make(map[reflect.Type]string)
)
// RegisterType is called from generated code and maps from the fully qualified
// proto name to the type (pointer to struct) of the protocol buffer.
func RegisterType(x Message, name string) {
if _, ok := protoTypes[name]; ok {
// TODO: Some day, make this a panic.
log.Printf("proto: duplicate proto type registered: %s", name)
return
}
t := reflect.TypeOf(x)
protoTypes[name] = t
revProtoTypes[t] = name
}
// MessageName returns the fully-qualified proto name for the given message type.
func MessageName(x Message) string { return revProtoTypes[reflect.TypeOf(x)] }
// MessageType returns the message type (pointer to struct) for a named message.
func MessageType(name string) reflect.Type { return protoTypes[name] }

762
vendor/github.com/golang/protobuf/proto/text.go generated vendored Normal file
View File

@ -0,0 +1,762 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
// Functions for writing the text protocol buffer format.
import (
"bufio"
"bytes"
"encoding"
"errors"
"fmt"
"io"
"log"
"math"
"reflect"
"sort"
"strings"
)
var (
newline = []byte("\n")
spaces = []byte(" ")
gtNewline = []byte(">\n")
endBraceNewline = []byte("}\n")
backslashN = []byte{'\\', 'n'}
backslashR = []byte{'\\', 'r'}
backslashT = []byte{'\\', 't'}
backslashDQ = []byte{'\\', '"'}
backslashBS = []byte{'\\', '\\'}
posInf = []byte("inf")
negInf = []byte("-inf")
nan = []byte("nan")
)
type writer interface {
io.Writer
WriteByte(byte) error
}
// textWriter is an io.Writer that tracks its indentation level.
type textWriter struct {
ind int
complete bool // if the current position is a complete line
compact bool // whether to write out as a one-liner
w writer
}
func (w *textWriter) WriteString(s string) (n int, err error) {
if !strings.Contains(s, "\n") {
if !w.compact && w.complete {
w.writeIndent()
}
w.complete = false
return io.WriteString(w.w, s)
}
// WriteString is typically called without newlines, so this
// codepath and its copy are rare. We copy to avoid
// duplicating all of Write's logic here.
return w.Write([]byte(s))
}
func (w *textWriter) Write(p []byte) (n int, err error) {
newlines := bytes.Count(p, newline)
if newlines == 0 {
if !w.compact && w.complete {
w.writeIndent()
}
n, err = w.w.Write(p)
w.complete = false
return n, err
}
frags := bytes.SplitN(p, newline, newlines+1)
if w.compact {
for i, frag := range frags {
if i > 0 {
if err := w.w.WriteByte(' '); err != nil {
return n, err
}
n++
}
nn, err := w.w.Write(frag)
n += nn
if err != nil {
return n, err
}
}
return n, nil
}
for i, frag := range frags {
if w.complete {
w.writeIndent()
}
nn, err := w.w.Write(frag)
n += nn
if err != nil {
return n, err
}
if i+1 < len(frags) {
if err := w.w.WriteByte('\n'); err != nil {
return n, err
}
n++
}
}
w.complete = len(frags[len(frags)-1]) == 0
return n, nil
}
func (w *textWriter) WriteByte(c byte) error {
if w.compact && c == '\n' {
c = ' '
}
if !w.compact && w.complete {
w.writeIndent()
}
err := w.w.WriteByte(c)
w.complete = c == '\n'
return err
}
func (w *textWriter) indent() { w.ind++ }
func (w *textWriter) unindent() {
if w.ind == 0 {
log.Printf("proto: textWriter unindented too far")
return
}
w.ind--
}
func writeName(w *textWriter, props *Properties) error {
if _, err := w.WriteString(props.OrigName); err != nil {
return err
}
if props.Wire != "group" {
return w.WriteByte(':')
}
return nil
}
// raw is the interface satisfied by RawMessage.
type raw interface {
Bytes() []byte
}
func writeStruct(w *textWriter, sv reflect.Value) error {
st := sv.Type()
sprops := GetProperties(st)
for i := 0; i < sv.NumField(); i++ {
fv := sv.Field(i)
props := sprops.Prop[i]
name := st.Field(i).Name
if strings.HasPrefix(name, "XXX_") {
// There are two XXX_ fields:
// XXX_unrecognized []byte
// XXX_extensions map[int32]proto.Extension
// The first is handled here;
// the second is handled at the bottom of this function.
if name == "XXX_unrecognized" && !fv.IsNil() {
if err := writeUnknownStruct(w, fv.Interface().([]byte)); err != nil {
return err
}
}
continue
}
if fv.Kind() == reflect.Ptr && fv.IsNil() {
// Field not filled in. This could be an optional field or
// a required field that wasn't filled in. Either way, there
// isn't anything we can show for it.
continue
}
if fv.Kind() == reflect.Slice && fv.IsNil() {
// Repeated field that is empty, or a bytes field that is unused.
continue
}
if props.Repeated && fv.Kind() == reflect.Slice {
// Repeated field.
for j := 0; j < fv.Len(); j++ {
if err := writeName(w, props); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
v := fv.Index(j)
if v.Kind() == reflect.Ptr && v.IsNil() {
// A nil message in a repeated field is not valid,
// but we can handle that more gracefully than panicking.
if _, err := w.Write([]byte("<nil>\n")); err != nil {
return err
}
continue
}
if err := writeAny(w, v, props); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
continue
}
if fv.Kind() == reflect.Map {
// Map fields are rendered as a repeated struct with key/value fields.
keys := fv.MapKeys()
sort.Sort(mapKeys(keys))
for _, key := range keys {
val := fv.MapIndex(key)
if err := writeName(w, props); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
// open struct
if err := w.WriteByte('<'); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte('\n'); err != nil {
return err
}
}
w.indent()
// key
if _, err := w.WriteString("key:"); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if err := writeAny(w, key, props.mkeyprop); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
// nil values aren't legal, but we can avoid panicking because of them.
if val.Kind() != reflect.Ptr || !val.IsNil() {
// value
if _, err := w.WriteString("value:"); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if err := writeAny(w, val, props.mvalprop); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
// close struct
w.unindent()
if err := w.WriteByte('>'); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
continue
}
if props.proto3 && fv.Kind() == reflect.Slice && fv.Len() == 0 {
// empty bytes field
continue
}
if fv.Kind() != reflect.Ptr && fv.Kind() != reflect.Slice {
// proto3 non-repeated scalar field; skip if zero value
if isProto3Zero(fv) {
continue
}
}
if fv.Kind() == reflect.Interface {
// Check if it is a oneof.
if st.Field(i).Tag.Get("protobuf_oneof") != "" {
// fv is nil, or holds a pointer to generated struct.
// That generated struct has exactly one field,
// which has a protobuf struct tag.
if fv.IsNil() {
continue
}
inner := fv.Elem().Elem() // interface -> *T -> T
tag := inner.Type().Field(0).Tag.Get("protobuf")
props = new(Properties) // Overwrite the outer props var, but not its pointee.
props.Parse(tag)
// Write the value in the oneof, not the oneof itself.
fv = inner.Field(0)
// Special case to cope with malformed messages gracefully:
// If the value in the oneof is a nil pointer, don't panic
// in writeAny.
if fv.Kind() == reflect.Ptr && fv.IsNil() {
// Use errors.New so writeAny won't render quotes.
msg := errors.New("/* nil */")
fv = reflect.ValueOf(&msg).Elem()
}
}
}
if err := writeName(w, props); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if b, ok := fv.Interface().(raw); ok {
if err := writeRaw(w, b.Bytes()); err != nil {
return err
}
continue
}
// Enums have a String method, so writeAny will work fine.
if err := writeAny(w, fv, props); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
// Extensions (the XXX_extensions field).
pv := sv.Addr()
if pv.Type().Implements(extendableProtoType) {
if err := writeExtensions(w, pv); err != nil {
return err
}
}
return nil
}
// writeRaw writes an uninterpreted raw message.
func writeRaw(w *textWriter, b []byte) error {
if err := w.WriteByte('<'); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte('\n'); err != nil {
return err
}
}
w.indent()
if err := writeUnknownStruct(w, b); err != nil {
return err
}
w.unindent()
if err := w.WriteByte('>'); err != nil {
return err
}
return nil
}
// writeAny writes an arbitrary field.
func writeAny(w *textWriter, v reflect.Value, props *Properties) error {
v = reflect.Indirect(v)
// Floats have special cases.
if v.Kind() == reflect.Float32 || v.Kind() == reflect.Float64 {
x := v.Float()
var b []byte
switch {
case math.IsInf(x, 1):
b = posInf
case math.IsInf(x, -1):
b = negInf
case math.IsNaN(x):
b = nan
}
if b != nil {
_, err := w.Write(b)
return err
}
// Other values are handled below.
}
// We don't attempt to serialise every possible value type; only those
// that can occur in protocol buffers.
switch v.Kind() {
case reflect.Slice:
// Should only be a []byte; repeated fields are handled in writeStruct.
if err := writeString(w, string(v.Interface().([]byte))); err != nil {
return err
}
case reflect.String:
if err := writeString(w, v.String()); err != nil {
return err
}
case reflect.Struct:
// Required/optional group/message.
var bra, ket byte = '<', '>'
if props != nil && props.Wire == "group" {
bra, ket = '{', '}'
}
if err := w.WriteByte(bra); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte('\n'); err != nil {
return err
}
}
w.indent()
if tm, ok := v.Interface().(encoding.TextMarshaler); ok {
text, err := tm.MarshalText()
if err != nil {
return err
}
if _, err = w.Write(text); err != nil {
return err
}
} else if err := writeStruct(w, v); err != nil {
return err
}
w.unindent()
if err := w.WriteByte(ket); err != nil {
return err
}
default:
_, err := fmt.Fprint(w, v.Interface())
return err
}
return nil
}
// equivalent to C's isprint.
func isprint(c byte) bool {
return c >= 0x20 && c < 0x7f
}
// writeString writes a string in the protocol buffer text format.
// It is similar to strconv.Quote except we don't use Go escape sequences,
// we treat the string as a byte sequence, and we use octal escapes.
// These differences are to maintain interoperability with the other
// languages' implementations of the text format.
func writeString(w *textWriter, s string) error {
// use WriteByte here to get any needed indent
if err := w.WriteByte('"'); err != nil {
return err
}
// Loop over the bytes, not the runes.
for i := 0; i < len(s); i++ {
var err error
// Divergence from C++: we don't escape apostrophes.
// There's no need to escape them, and the C++ parser
// copes with a naked apostrophe.
switch c := s[i]; c {
case '\n':
_, err = w.w.Write(backslashN)
case '\r':
_, err = w.w.Write(backslashR)
case '\t':
_, err = w.w.Write(backslashT)
case '"':
_, err = w.w.Write(backslashDQ)
case '\\':
_, err = w.w.Write(backslashBS)
default:
if isprint(c) {
err = w.w.WriteByte(c)
} else {
_, err = fmt.Fprintf(w.w, "\\%03o", c)
}
}
if err != nil {
return err
}
}
return w.WriteByte('"')
}
func writeUnknownStruct(w *textWriter, data []byte) (err error) {
if !w.compact {
if _, err := fmt.Fprintf(w, "/* %d unknown bytes */\n", len(data)); err != nil {
return err
}
}
b := NewBuffer(data)
for b.index < len(b.buf) {
x, err := b.DecodeVarint()
if err != nil {
_, err := fmt.Fprintf(w, "/* %v */\n", err)
return err
}
wire, tag := x&7, x>>3
if wire == WireEndGroup {
w.unindent()
if _, err := w.Write(endBraceNewline); err != nil {
return err
}
continue
}
if _, err := fmt.Fprint(w, tag); err != nil {
return err
}
if wire != WireStartGroup {
if err := w.WriteByte(':'); err != nil {
return err
}
}
if !w.compact || wire == WireStartGroup {
if err := w.WriteByte(' '); err != nil {
return err
}
}
switch wire {
case WireBytes:
buf, e := b.DecodeRawBytes(false)
if e == nil {
_, err = fmt.Fprintf(w, "%q", buf)
} else {
_, err = fmt.Fprintf(w, "/* %v */", e)
}
case WireFixed32:
x, err = b.DecodeFixed32()
err = writeUnknownInt(w, x, err)
case WireFixed64:
x, err = b.DecodeFixed64()
err = writeUnknownInt(w, x, err)
case WireStartGroup:
err = w.WriteByte('{')
w.indent()
case WireVarint:
x, err = b.DecodeVarint()
err = writeUnknownInt(w, x, err)
default:
_, err = fmt.Fprintf(w, "/* unknown wire type %d */", wire)
}
if err != nil {
return err
}
if err = w.WriteByte('\n'); err != nil {
return err
}
}
return nil
}
func writeUnknownInt(w *textWriter, x uint64, err error) error {
if err == nil {
_, err = fmt.Fprint(w, x)
} else {
_, err = fmt.Fprintf(w, "/* %v */", err)
}
return err
}
type int32Slice []int32
func (s int32Slice) Len() int { return len(s) }
func (s int32Slice) Less(i, j int) bool { return s[i] < s[j] }
func (s int32Slice) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
// writeExtensions writes all the extensions in pv.
// pv is assumed to be a pointer to a protocol message struct that is extendable.
func writeExtensions(w *textWriter, pv reflect.Value) error {
emap := extensionMaps[pv.Type().Elem()]
ep := pv.Interface().(extendableProto)
// Order the extensions by ID.
// This isn't strictly necessary, but it will give us
// canonical output, which will also make testing easier.
m := ep.ExtensionMap()
ids := make([]int32, 0, len(m))
for id := range m {
ids = append(ids, id)
}
sort.Sort(int32Slice(ids))
for _, extNum := range ids {
ext := m[extNum]
var desc *ExtensionDesc
if emap != nil {
desc = emap[extNum]
}
if desc == nil {
// Unknown extension.
if err := writeUnknownStruct(w, ext.enc); err != nil {
return err
}
continue
}
pb, err := GetExtension(ep, desc)
if err != nil {
return fmt.Errorf("failed getting extension: %v", err)
}
// Repeated extensions will appear as a slice.
if !desc.repeated() {
if err := writeExtension(w, desc.Name, pb); err != nil {
return err
}
} else {
v := reflect.ValueOf(pb)
for i := 0; i < v.Len(); i++ {
if err := writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil {
return err
}
}
}
}
return nil
}
func writeExtension(w *textWriter, name string, pb interface{}) error {
if _, err := fmt.Fprintf(w, "[%s]:", name); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if err := writeAny(w, reflect.ValueOf(pb), nil); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
return nil
}
func (w *textWriter) writeIndent() {
if !w.complete {
return
}
remain := w.ind * 2
for remain > 0 {
n := remain
if n > len(spaces) {
n = len(spaces)
}
w.w.Write(spaces[:n])
remain -= n
}
w.complete = false
}
// TextMarshaler is a configurable text format marshaler.
type TextMarshaler struct {
Compact bool // use compact text format (one line).
}
// Marshal writes a given protocol buffer in text format.
// The only errors returned are from w.
func (m *TextMarshaler) Marshal(w io.Writer, pb Message) error {
val := reflect.ValueOf(pb)
if pb == nil || val.IsNil() {
w.Write([]byte("<nil>"))
return nil
}
var bw *bufio.Writer
ww, ok := w.(writer)
if !ok {
bw = bufio.NewWriter(w)
ww = bw
}
aw := &textWriter{
w: ww,
complete: true,
compact: m.Compact,
}
if tm, ok := pb.(encoding.TextMarshaler); ok {
text, err := tm.MarshalText()
if err != nil {
return err
}
if _, err = aw.Write(text); err != nil {
return err
}
if bw != nil {
return bw.Flush()
}
return nil
}
// Dereference the received pointer so we don't have outer < and >.
v := reflect.Indirect(val)
if err := writeStruct(aw, v); err != nil {
return err
}
if bw != nil {
return bw.Flush()
}
return nil
}
// Text is the same as Marshal, but returns the string directly.
func (m *TextMarshaler) Text(pb Message) string {
var buf bytes.Buffer
m.Marshal(&buf, pb)
return buf.String()
}
var (
defaultTextMarshaler = TextMarshaler{}
compactTextMarshaler = TextMarshaler{Compact: true}
)
// TODO: consider removing some of the Marshal functions below.
// MarshalText writes a given protocol buffer in text format.
// The only errors returned are from w.
func MarshalText(w io.Writer, pb Message) error { return defaultTextMarshaler.Marshal(w, pb) }
// MarshalTextString is the same as MarshalText, but returns the string directly.
func MarshalTextString(pb Message) string { return defaultTextMarshaler.Text(pb) }
// CompactText writes a given protocol buffer in compact text format (one line).
func CompactText(w io.Writer, pb Message) error { return compactTextMarshaler.Marshal(w, pb) }
// CompactTextString is the same as CompactText, but returns the string directly.
func CompactTextString(pb Message) string { return compactTextMarshaler.Text(pb) }

806
vendor/github.com/golang/protobuf/proto/text_parser.go generated vendored Normal file
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@ -0,0 +1,806 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
// Functions for parsing the Text protocol buffer format.
// TODO: message sets.
import (
"encoding"
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"unicode/utf8"
)
type ParseError struct {
Message string
Line int // 1-based line number
Offset int // 0-based byte offset from start of input
}
func (p *ParseError) Error() string {
if p.Line == 1 {
// show offset only for first line
return fmt.Sprintf("line 1.%d: %v", p.Offset, p.Message)
}
return fmt.Sprintf("line %d: %v", p.Line, p.Message)
}
type token struct {
value string
err *ParseError
line int // line number
offset int // byte number from start of input, not start of line
unquoted string // the unquoted version of value, if it was a quoted string
}
func (t *token) String() string {
if t.err == nil {
return fmt.Sprintf("%q (line=%d, offset=%d)", t.value, t.line, t.offset)
}
return fmt.Sprintf("parse error: %v", t.err)
}
type textParser struct {
s string // remaining input
done bool // whether the parsing is finished (success or error)
backed bool // whether back() was called
offset, line int
cur token
}
func newTextParser(s string) *textParser {
p := new(textParser)
p.s = s
p.line = 1
p.cur.line = 1
return p
}
func (p *textParser) errorf(format string, a ...interface{}) *ParseError {
pe := &ParseError{fmt.Sprintf(format, a...), p.cur.line, p.cur.offset}
p.cur.err = pe
p.done = true
return pe
}
// Numbers and identifiers are matched by [-+._A-Za-z0-9]
func isIdentOrNumberChar(c byte) bool {
switch {
case 'A' <= c && c <= 'Z', 'a' <= c && c <= 'z':
return true
case '0' <= c && c <= '9':
return true
}
switch c {
case '-', '+', '.', '_':
return true
}
return false
}
func isWhitespace(c byte) bool {
switch c {
case ' ', '\t', '\n', '\r':
return true
}
return false
}
func isQuote(c byte) bool {
switch c {
case '"', '\'':
return true
}
return false
}
func (p *textParser) skipWhitespace() {
i := 0
for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') {
if p.s[i] == '#' {
// comment; skip to end of line or input
for i < len(p.s) && p.s[i] != '\n' {
i++
}
if i == len(p.s) {
break
}
}
if p.s[i] == '\n' {
p.line++
}
i++
}
p.offset += i
p.s = p.s[i:len(p.s)]
if len(p.s) == 0 {
p.done = true
}
}
func (p *textParser) advance() {
// Skip whitespace
p.skipWhitespace()
if p.done {
return
}
// Start of non-whitespace
p.cur.err = nil
p.cur.offset, p.cur.line = p.offset, p.line
p.cur.unquoted = ""
switch p.s[0] {
case '<', '>', '{', '}', ':', '[', ']', ';', ',':
// Single symbol
p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)]
case '"', '\'':
// Quoted string
i := 1
for i < len(p.s) && p.s[i] != p.s[0] && p.s[i] != '\n' {
if p.s[i] == '\\' && i+1 < len(p.s) {
// skip escaped char
i++
}
i++
}
if i >= len(p.s) || p.s[i] != p.s[0] {
p.errorf("unmatched quote")
return
}
unq, err := unquoteC(p.s[1:i], rune(p.s[0]))
if err != nil {
p.errorf("invalid quoted string %s: %v", p.s[0:i+1], err)
return
}
p.cur.value, p.s = p.s[0:i+1], p.s[i+1:len(p.s)]
p.cur.unquoted = unq
default:
i := 0
for i < len(p.s) && isIdentOrNumberChar(p.s[i]) {
i++
}
if i == 0 {
p.errorf("unexpected byte %#x", p.s[0])
return
}
p.cur.value, p.s = p.s[0:i], p.s[i:len(p.s)]
}
p.offset += len(p.cur.value)
}
var (
errBadUTF8 = errors.New("proto: bad UTF-8")
errBadHex = errors.New("proto: bad hexadecimal")
)
func unquoteC(s string, quote rune) (string, error) {
// This is based on C++'s tokenizer.cc.
// Despite its name, this is *not* parsing C syntax.
// For instance, "\0" is an invalid quoted string.
// Avoid allocation in trivial cases.
simple := true
for _, r := range s {
if r == '\\' || r == quote {
simple = false
break
}
}
if simple {
return s, nil
}
buf := make([]byte, 0, 3*len(s)/2)
for len(s) > 0 {
r, n := utf8.DecodeRuneInString(s)
if r == utf8.RuneError && n == 1 {
return "", errBadUTF8
}
s = s[n:]
if r != '\\' {
if r < utf8.RuneSelf {
buf = append(buf, byte(r))
} else {
buf = append(buf, string(r)...)
}
continue
}
ch, tail, err := unescape(s)
if err != nil {
return "", err
}
buf = append(buf, ch...)
s = tail
}
return string(buf), nil
}
func unescape(s string) (ch string, tail string, err error) {
r, n := utf8.DecodeRuneInString(s)
if r == utf8.RuneError && n == 1 {
return "", "", errBadUTF8
}
s = s[n:]
switch r {
case 'a':
return "\a", s, nil
case 'b':
return "\b", s, nil
case 'f':
return "\f", s, nil
case 'n':
return "\n", s, nil
case 'r':
return "\r", s, nil
case 't':
return "\t", s, nil
case 'v':
return "\v", s, nil
case '?':
return "?", s, nil // trigraph workaround
case '\'', '"', '\\':
return string(r), s, nil
case '0', '1', '2', '3', '4', '5', '6', '7', 'x', 'X':
if len(s) < 2 {
return "", "", fmt.Errorf(`\%c requires 2 following digits`, r)
}
base := 8
ss := s[:2]
s = s[2:]
if r == 'x' || r == 'X' {
base = 16
} else {
ss = string(r) + ss
}
i, err := strconv.ParseUint(ss, base, 8)
if err != nil {
return "", "", err
}
return string([]byte{byte(i)}), s, nil
case 'u', 'U':
n := 4
if r == 'U' {
n = 8
}
if len(s) < n {
return "", "", fmt.Errorf(`\%c requires %d digits`, r, n)
}
bs := make([]byte, n/2)
for i := 0; i < n; i += 2 {
a, ok1 := unhex(s[i])
b, ok2 := unhex(s[i+1])
if !ok1 || !ok2 {
return "", "", errBadHex
}
bs[i/2] = a<<4 | b
}
s = s[n:]
return string(bs), s, nil
}
return "", "", fmt.Errorf(`unknown escape \%c`, r)
}
// Adapted from src/pkg/strconv/quote.go.
func unhex(b byte) (v byte, ok bool) {
switch {
case '0' <= b && b <= '9':
return b - '0', true
case 'a' <= b && b <= 'f':
return b - 'a' + 10, true
case 'A' <= b && b <= 'F':
return b - 'A' + 10, true
}
return 0, false
}
// Back off the parser by one token. Can only be done between calls to next().
// It makes the next advance() a no-op.
func (p *textParser) back() { p.backed = true }
// Advances the parser and returns the new current token.
func (p *textParser) next() *token {
if p.backed || p.done {
p.backed = false
return &p.cur
}
p.advance()
if p.done {
p.cur.value = ""
} else if len(p.cur.value) > 0 && isQuote(p.cur.value[0]) {
// Look for multiple quoted strings separated by whitespace,
// and concatenate them.
cat := p.cur
for {
p.skipWhitespace()
if p.done || !isQuote(p.s[0]) {
break
}
p.advance()
if p.cur.err != nil {
return &p.cur
}
cat.value += " " + p.cur.value
cat.unquoted += p.cur.unquoted
}
p.done = false // parser may have seen EOF, but we want to return cat
p.cur = cat
}
return &p.cur
}
func (p *textParser) consumeToken(s string) error {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value != s {
p.back()
return p.errorf("expected %q, found %q", s, tok.value)
}
return nil
}
// Return a RequiredNotSetError indicating which required field was not set.
func (p *textParser) missingRequiredFieldError(sv reflect.Value) *RequiredNotSetError {
st := sv.Type()
sprops := GetProperties(st)
for i := 0; i < st.NumField(); i++ {
if !isNil(sv.Field(i)) {
continue
}
props := sprops.Prop[i]
if props.Required {
return &RequiredNotSetError{fmt.Sprintf("%v.%v", st, props.OrigName)}
}
}
return &RequiredNotSetError{fmt.Sprintf("%v.<unknown field name>", st)} // should not happen
}
// Returns the index in the struct for the named field, as well as the parsed tag properties.
func structFieldByName(sprops *StructProperties, name string) (int, *Properties, bool) {
i, ok := sprops.decoderOrigNames[name]
if ok {
return i, sprops.Prop[i], true
}
return -1, nil, false
}
// Consume a ':' from the input stream (if the next token is a colon),
// returning an error if a colon is needed but not present.
func (p *textParser) checkForColon(props *Properties, typ reflect.Type) *ParseError {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value != ":" {
// Colon is optional when the field is a group or message.
needColon := true
switch props.Wire {
case "group":
needColon = false
case "bytes":
// A "bytes" field is either a message, a string, or a repeated field;
// those three become *T, *string and []T respectively, so we can check for
// this field being a pointer to a non-string.
if typ.Kind() == reflect.Ptr {
// *T or *string
if typ.Elem().Kind() == reflect.String {
break
}
} else if typ.Kind() == reflect.Slice {
// []T or []*T
if typ.Elem().Kind() != reflect.Ptr {
break
}
} else if typ.Kind() == reflect.String {
// The proto3 exception is for a string field,
// which requires a colon.
break
}
needColon = false
}
if needColon {
return p.errorf("expected ':', found %q", tok.value)
}
p.back()
}
return nil
}
func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
st := sv.Type()
sprops := GetProperties(st)
reqCount := sprops.reqCount
var reqFieldErr error
fieldSet := make(map[string]bool)
// A struct is a sequence of "name: value", terminated by one of
// '>' or '}', or the end of the input. A name may also be
// "[extension]".
for {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value == terminator {
break
}
if tok.value == "[" {
// Looks like an extension.
//
// TODO: Check whether we need to handle
// namespace rooted names (e.g. ".something.Foo").
tok = p.next()
if tok.err != nil {
return tok.err
}
var desc *ExtensionDesc
// This could be faster, but it's functional.
// TODO: Do something smarter than a linear scan.
for _, d := range RegisteredExtensions(reflect.New(st).Interface().(Message)) {
if d.Name == tok.value {
desc = d
break
}
}
if desc == nil {
return p.errorf("unrecognized extension %q", tok.value)
}
// Check the extension terminator.
tok = p.next()
if tok.err != nil {
return tok.err
}
if tok.value != "]" {
return p.errorf("unrecognized extension terminator %q", tok.value)
}
props := &Properties{}
props.Parse(desc.Tag)
typ := reflect.TypeOf(desc.ExtensionType)
if err := p.checkForColon(props, typ); err != nil {
return err
}
rep := desc.repeated()
// Read the extension structure, and set it in
// the value we're constructing.
var ext reflect.Value
if !rep {
ext = reflect.New(typ).Elem()
} else {
ext = reflect.New(typ.Elem()).Elem()
}
if err := p.readAny(ext, props); err != nil {
if _, ok := err.(*RequiredNotSetError); !ok {
return err
}
reqFieldErr = err
}
ep := sv.Addr().Interface().(extendableProto)
if !rep {
SetExtension(ep, desc, ext.Interface())
} else {
old, err := GetExtension(ep, desc)
var sl reflect.Value
if err == nil {
sl = reflect.ValueOf(old) // existing slice
} else {
sl = reflect.MakeSlice(typ, 0, 1)
}
sl = reflect.Append(sl, ext)
SetExtension(ep, desc, sl.Interface())
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
continue
}
// This is a normal, non-extension field.
name := tok.value
var dst reflect.Value
fi, props, ok := structFieldByName(sprops, name)
if ok {
dst = sv.Field(fi)
} else if oop, ok := sprops.OneofTypes[name]; ok {
// It is a oneof.
props = oop.Prop
nv := reflect.New(oop.Type.Elem())
dst = nv.Elem().Field(0)
sv.Field(oop.Field).Set(nv)
}
if !dst.IsValid() {
return p.errorf("unknown field name %q in %v", name, st)
}
if dst.Kind() == reflect.Map {
// Consume any colon.
if err := p.checkForColon(props, dst.Type()); err != nil {
return err
}
// Construct the map if it doesn't already exist.
if dst.IsNil() {
dst.Set(reflect.MakeMap(dst.Type()))
}
key := reflect.New(dst.Type().Key()).Elem()
val := reflect.New(dst.Type().Elem()).Elem()
// The map entry should be this sequence of tokens:
// < key : KEY value : VALUE >
// Technically the "key" and "value" could come in any order,
// but in practice they won't.
tok := p.next()
var terminator string
switch tok.value {
case "<":
terminator = ">"
case "{":
terminator = "}"
default:
return p.errorf("expected '{' or '<', found %q", tok.value)
}
if err := p.consumeToken("key"); err != nil {
return err
}
if err := p.consumeToken(":"); err != nil {
return err
}
if err := p.readAny(key, props.mkeyprop); err != nil {
return err
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
if err := p.consumeToken("value"); err != nil {
return err
}
if err := p.checkForColon(props.mvalprop, dst.Type().Elem()); err != nil {
return err
}
if err := p.readAny(val, props.mvalprop); err != nil {
return err
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
if err := p.consumeToken(terminator); err != nil {
return err
}
dst.SetMapIndex(key, val)
continue
}
// Check that it's not already set if it's not a repeated field.
if !props.Repeated && fieldSet[name] {
return p.errorf("non-repeated field %q was repeated", name)
}
if err := p.checkForColon(props, dst.Type()); err != nil {
return err
}
// Parse into the field.
fieldSet[name] = true
if err := p.readAny(dst, props); err != nil {
if _, ok := err.(*RequiredNotSetError); !ok {
return err
}
reqFieldErr = err
} else if props.Required {
reqCount--
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
}
if reqCount > 0 {
return p.missingRequiredFieldError(sv)
}
return reqFieldErr
}
// consumeOptionalSeparator consumes an optional semicolon or comma.
// It is used in readStruct to provide backward compatibility.
func (p *textParser) consumeOptionalSeparator() error {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value != ";" && tok.value != "," {
p.back()
}
return nil
}
func (p *textParser) readAny(v reflect.Value, props *Properties) error {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value == "" {
return p.errorf("unexpected EOF")
}
switch fv := v; fv.Kind() {
case reflect.Slice:
at := v.Type()
if at.Elem().Kind() == reflect.Uint8 {
// Special case for []byte
if tok.value[0] != '"' && tok.value[0] != '\'' {
// Deliberately written out here, as the error after
// this switch statement would write "invalid []byte: ...",
// which is not as user-friendly.
return p.errorf("invalid string: %v", tok.value)
}
bytes := []byte(tok.unquoted)
fv.Set(reflect.ValueOf(bytes))
return nil
}
// Repeated field.
if tok.value == "[" {
// Repeated field with list notation, like [1,2,3].
for {
fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
err := p.readAny(fv.Index(fv.Len()-1), props)
if err != nil {
return err
}
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value == "]" {
break
}
if tok.value != "," {
return p.errorf("Expected ']' or ',' found %q", tok.value)
}
}
return nil
}
// One value of the repeated field.
p.back()
fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
return p.readAny(fv.Index(fv.Len()-1), props)
case reflect.Bool:
// Either "true", "false", 1 or 0.
switch tok.value {
case "true", "1":
fv.SetBool(true)
return nil
case "false", "0":
fv.SetBool(false)
return nil
}
case reflect.Float32, reflect.Float64:
v := tok.value
// Ignore 'f' for compatibility with output generated by C++, but don't
// remove 'f' when the value is "-inf" or "inf".
if strings.HasSuffix(v, "f") && tok.value != "-inf" && tok.value != "inf" {
v = v[:len(v)-1]
}
if f, err := strconv.ParseFloat(v, fv.Type().Bits()); err == nil {
fv.SetFloat(f)
return nil
}
case reflect.Int32:
if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil {
fv.SetInt(x)
return nil
}
if len(props.Enum) == 0 {
break
}
m, ok := enumValueMaps[props.Enum]
if !ok {
break
}
x, ok := m[tok.value]
if !ok {
break
}
fv.SetInt(int64(x))
return nil
case reflect.Int64:
if x, err := strconv.ParseInt(tok.value, 0, 64); err == nil {
fv.SetInt(x)
return nil
}
case reflect.Ptr:
// A basic field (indirected through pointer), or a repeated message/group
p.back()
fv.Set(reflect.New(fv.Type().Elem()))
return p.readAny(fv.Elem(), props)
case reflect.String:
if tok.value[0] == '"' || tok.value[0] == '\'' {
fv.SetString(tok.unquoted)
return nil
}
case reflect.Struct:
var terminator string
switch tok.value {
case "{":
terminator = "}"
case "<":
terminator = ">"
default:
return p.errorf("expected '{' or '<', found %q", tok.value)
}
// TODO: Handle nested messages which implement encoding.TextUnmarshaler.
return p.readStruct(fv, terminator)
case reflect.Uint32:
if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil {
fv.SetUint(uint64(x))
return nil
}
case reflect.Uint64:
if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil {
fv.SetUint(x)
return nil
}
}
return p.errorf("invalid %v: %v", v.Type(), tok.value)
}
// UnmarshalText reads a protocol buffer in Text format. UnmarshalText resets pb
// before starting to unmarshal, so any existing data in pb is always removed.
// If a required field is not set and no other error occurs,
// UnmarshalText returns *RequiredNotSetError.
func UnmarshalText(s string, pb Message) error {
if um, ok := pb.(encoding.TextUnmarshaler); ok {
err := um.UnmarshalText([]byte(s))
return err
}
pb.Reset()
v := reflect.ValueOf(pb)
if pe := newTextParser(s).readStruct(v.Elem(), ""); pe != nil {
return pe
}
return nil
}

27
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Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

22
vendor/golang.org/x/net/PATENTS generated vendored Normal file
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Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

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vendor/golang.org/x/net/context/context.go generated vendored Normal file
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package context defines the Context type, which carries deadlines,
// cancelation signals, and other request-scoped values across API boundaries
// and between processes.
//
// Incoming requests to a server should create a Context, and outgoing calls to
// servers should accept a Context. The chain of function calls between must
// propagate the Context, optionally replacing it with a modified copy created
// using WithDeadline, WithTimeout, WithCancel, or WithValue.
//
// Programs that use Contexts should follow these rules to keep interfaces
// consistent across packages and enable static analysis tools to check context
// propagation:
//
// Do not store Contexts inside a struct type; instead, pass a Context
// explicitly to each function that needs it. The Context should be the first
// parameter, typically named ctx:
//
// func DoSomething(ctx context.Context, arg Arg) error {
// // ... use ctx ...
// }
//
// Do not pass a nil Context, even if a function permits it. Pass context.TODO
// if you are unsure about which Context to use.
//
// Use context Values only for request-scoped data that transits processes and
// APIs, not for passing optional parameters to functions.
//
// The same Context may be passed to functions running in different goroutines;
// Contexts are safe for simultaneous use by multiple goroutines.
//
// See http://blog.golang.org/context for example code for a server that uses
// Contexts.
package context // import "golang.org/x/net/context"
import "time"
// A Context carries a deadline, a cancelation signal, and other values across
// API boundaries.
//
// Context's methods may be called by multiple goroutines simultaneously.
type Context interface {
// Deadline returns the time when work done on behalf of this context
// should be canceled. Deadline returns ok==false when no deadline is
// set. Successive calls to Deadline return the same results.
Deadline() (deadline time.Time, ok bool)
// Done returns a channel that's closed when work done on behalf of this
// context should be canceled. Done may return nil if this context can
// never be canceled. Successive calls to Done return the same value.
//
// WithCancel arranges for Done to be closed when cancel is called;
// WithDeadline arranges for Done to be closed when the deadline
// expires; WithTimeout arranges for Done to be closed when the timeout
// elapses.
//
// Done is provided for use in select statements:
//
// // Stream generates values with DoSomething and sends them to out
// // until DoSomething returns an error or ctx.Done is closed.
// func Stream(ctx context.Context, out chan<- Value) error {
// for {
// v, err := DoSomething(ctx)
// if err != nil {
// return err
// }
// select {
// case <-ctx.Done():
// return ctx.Err()
// case out <- v:
// }
// }
// }
//
// See http://blog.golang.org/pipelines for more examples of how to use
// a Done channel for cancelation.
Done() <-chan struct{}
// Err returns a non-nil error value after Done is closed. Err returns
// Canceled if the context was canceled or DeadlineExceeded if the
// context's deadline passed. No other values for Err are defined.
// After Done is closed, successive calls to Err return the same value.
Err() error
// Value returns the value associated with this context for key, or nil
// if no value is associated with key. Successive calls to Value with
// the same key returns the same result.
//
// Use context values only for request-scoped data that transits
// processes and API boundaries, not for passing optional parameters to
// functions.
//
// A key identifies a specific value in a Context. Functions that wish
// to store values in Context typically allocate a key in a global
// variable then use that key as the argument to context.WithValue and
// Context.Value. A key can be any type that supports equality;
// packages should define keys as an unexported type to avoid
// collisions.
//
// Packages that define a Context key should provide type-safe accessors
// for the values stores using that key:
//
// // Package user defines a User type that's stored in Contexts.
// package user
//
// import "golang.org/x/net/context"
//
// // User is the type of value stored in the Contexts.
// type User struct {...}
//
// // key is an unexported type for keys defined in this package.
// // This prevents collisions with keys defined in other packages.
// type key int
//
// // userKey is the key for user.User values in Contexts. It is
// // unexported; clients use user.NewContext and user.FromContext
// // instead of using this key directly.
// var userKey key = 0
//
// // NewContext returns a new Context that carries value u.
// func NewContext(ctx context.Context, u *User) context.Context {
// return context.WithValue(ctx, userKey, u)
// }
//
// // FromContext returns the User value stored in ctx, if any.
// func FromContext(ctx context.Context) (*User, bool) {
// u, ok := ctx.Value(userKey).(*User)
// return u, ok
// }
Value(key interface{}) interface{}
}
// Background returns a non-nil, empty Context. It is never canceled, has no
// values, and has no deadline. It is typically used by the main function,
// initialization, and tests, and as the top-level Context for incoming
// requests.
func Background() Context {
return background
}
// TODO returns a non-nil, empty Context. Code should use context.TODO when
// it's unclear which Context to use or it is not yet available (because the
// surrounding function has not yet been extended to accept a Context
// parameter). TODO is recognized by static analysis tools that determine
// whether Contexts are propagated correctly in a program.
func TODO() Context {
return todo
}
// A CancelFunc tells an operation to abandon its work.
// A CancelFunc does not wait for the work to stop.
// After the first call, subsequent calls to a CancelFunc do nothing.
type CancelFunc func()

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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.7
// Package ctxhttp provides helper functions for performing context-aware HTTP requests.
package ctxhttp // import "golang.org/x/net/context/ctxhttp"
import (
"io"
"net/http"
"net/url"
"strings"
"golang.org/x/net/context"
)
// Do sends an HTTP request with the provided http.Client and returns
// an HTTP response.
//
// If the client is nil, http.DefaultClient is used.
//
// The provided ctx must be non-nil. If it is canceled or times out,
// ctx.Err() will be returned.
func Do(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) {
if client == nil {
client = http.DefaultClient
}
resp, err := client.Do(req.WithContext(ctx))
// If we got an error, and the context has been canceled,
// the context's error is probably more useful.
if err != nil {
select {
case <-ctx.Done():
err = ctx.Err()
default:
}
}
return resp, err
}
// Get issues a GET request via the Do function.
func Get(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return nil, err
}
return Do(ctx, client, req)
}
// Head issues a HEAD request via the Do function.
func Head(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
req, err := http.NewRequest("HEAD", url, nil)
if err != nil {
return nil, err
}
return Do(ctx, client, req)
}
// Post issues a POST request via the Do function.
func Post(ctx context.Context, client *http.Client, url string, bodyType string, body io.Reader) (*http.Response, error) {
req, err := http.NewRequest("POST", url, body)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", bodyType)
return Do(ctx, client, req)
}
// PostForm issues a POST request via the Do function.
func PostForm(ctx context.Context, client *http.Client, url string, data url.Values) (*http.Response, error) {
return Post(ctx, client, url, "application/x-www-form-urlencoded", strings.NewReader(data.Encode()))
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.7
package ctxhttp // import "golang.org/x/net/context/ctxhttp"
import (
"io"
"net/http"
"net/url"
"strings"
"golang.org/x/net/context"
)
func nop() {}
var (
testHookContextDoneBeforeHeaders = nop
testHookDoReturned = nop
testHookDidBodyClose = nop
)
// Do sends an HTTP request with the provided http.Client and returns an HTTP response.
// If the client is nil, http.DefaultClient is used.
// If the context is canceled or times out, ctx.Err() will be returned.
func Do(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) {
if client == nil {
client = http.DefaultClient
}
// TODO(djd): Respect any existing value of req.Cancel.
cancel := make(chan struct{})
req.Cancel = cancel
type responseAndError struct {
resp *http.Response
err error
}
result := make(chan responseAndError, 1)
// Make local copies of test hooks closed over by goroutines below.
// Prevents data races in tests.
testHookDoReturned := testHookDoReturned
testHookDidBodyClose := testHookDidBodyClose
go func() {
resp, err := client.Do(req)
testHookDoReturned()
result <- responseAndError{resp, err}
}()
var resp *http.Response
select {
case <-ctx.Done():
testHookContextDoneBeforeHeaders()
close(cancel)
// Clean up after the goroutine calling client.Do:
go func() {
if r := <-result; r.resp != nil {
testHookDidBodyClose()
r.resp.Body.Close()
}
}()
return nil, ctx.Err()
case r := <-result:
var err error
resp, err = r.resp, r.err
if err != nil {
return resp, err
}
}
c := make(chan struct{})
go func() {
select {
case <-ctx.Done():
close(cancel)
case <-c:
// The response's Body is closed.
}
}()
resp.Body = &notifyingReader{resp.Body, c}
return resp, nil
}
// Get issues a GET request via the Do function.
func Get(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return nil, err
}
return Do(ctx, client, req)
}
// Head issues a HEAD request via the Do function.
func Head(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
req, err := http.NewRequest("HEAD", url, nil)
if err != nil {
return nil, err
}
return Do(ctx, client, req)
}
// Post issues a POST request via the Do function.
func Post(ctx context.Context, client *http.Client, url string, bodyType string, body io.Reader) (*http.Response, error) {
req, err := http.NewRequest("POST", url, body)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", bodyType)
return Do(ctx, client, req)
}
// PostForm issues a POST request via the Do function.
func PostForm(ctx context.Context, client *http.Client, url string, data url.Values) (*http.Response, error) {
return Post(ctx, client, url, "application/x-www-form-urlencoded", strings.NewReader(data.Encode()))
}
// notifyingReader is an io.ReadCloser that closes the notify channel after
// Close is called or a Read fails on the underlying ReadCloser.
type notifyingReader struct {
io.ReadCloser
notify chan<- struct{}
}
func (r *notifyingReader) Read(p []byte) (int, error) {
n, err := r.ReadCloser.Read(p)
if err != nil && r.notify != nil {
close(r.notify)
r.notify = nil
}
return n, err
}
func (r *notifyingReader) Close() error {
err := r.ReadCloser.Close()
if r.notify != nil {
close(r.notify)
r.notify = nil
}
return err
}

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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.7
package context
import (
"context" // standard library's context, as of Go 1.7
"time"
)
var (
todo = context.TODO()
background = context.Background()
)
// Canceled is the error returned by Context.Err when the context is canceled.
var Canceled = context.Canceled
// DeadlineExceeded is the error returned by Context.Err when the context's
// deadline passes.
var DeadlineExceeded = context.DeadlineExceeded
// WithCancel returns a copy of parent with a new Done channel. The returned
// context's Done channel is closed when the returned cancel function is called
// or when the parent context's Done channel is closed, whichever happens first.
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete.
func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
ctx, f := context.WithCancel(parent)
return ctx, CancelFunc(f)
}
// WithDeadline returns a copy of the parent context with the deadline adjusted
// to be no later than d. If the parent's deadline is already earlier than d,
// WithDeadline(parent, d) is semantically equivalent to parent. The returned
// context's Done channel is closed when the deadline expires, when the returned
// cancel function is called, or when the parent context's Done channel is
// closed, whichever happens first.
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete.
func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) {
ctx, f := context.WithDeadline(parent, deadline)
return ctx, CancelFunc(f)
}
// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)).
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete:
//
// func slowOperationWithTimeout(ctx context.Context) (Result, error) {
// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond)
// defer cancel() // releases resources if slowOperation completes before timeout elapses
// return slowOperation(ctx)
// }
func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) {
return WithDeadline(parent, time.Now().Add(timeout))
}
// WithValue returns a copy of parent in which the value associated with key is
// val.
//
// Use context Values only for request-scoped data that transits processes and
// APIs, not for passing optional parameters to functions.
func WithValue(parent Context, key interface{}, val interface{}) Context {
return context.WithValue(parent, key, val)
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.7
package context
import (
"errors"
"fmt"
"sync"
"time"
)
// An emptyCtx is never canceled, has no values, and has no deadline. It is not
// struct{}, since vars of this type must have distinct addresses.
type emptyCtx int
func (*emptyCtx) Deadline() (deadline time.Time, ok bool) {
return
}
func (*emptyCtx) Done() <-chan struct{} {
return nil
}
func (*emptyCtx) Err() error {
return nil
}
func (*emptyCtx) Value(key interface{}) interface{} {
return nil
}
func (e *emptyCtx) String() string {
switch e {
case background:
return "context.Background"
case todo:
return "context.TODO"
}
return "unknown empty Context"
}
var (
background = new(emptyCtx)
todo = new(emptyCtx)
)
// Canceled is the error returned by Context.Err when the context is canceled.
var Canceled = errors.New("context canceled")
// DeadlineExceeded is the error returned by Context.Err when the context's
// deadline passes.
var DeadlineExceeded = errors.New("context deadline exceeded")
// WithCancel returns a copy of parent with a new Done channel. The returned
// context's Done channel is closed when the returned cancel function is called
// or when the parent context's Done channel is closed, whichever happens first.
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete.
func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
c := newCancelCtx(parent)
propagateCancel(parent, c)
return c, func() { c.cancel(true, Canceled) }
}
// newCancelCtx returns an initialized cancelCtx.
func newCancelCtx(parent Context) *cancelCtx {
return &cancelCtx{
Context: parent,
done: make(chan struct{}),
}
}
// propagateCancel arranges for child to be canceled when parent is.
func propagateCancel(parent Context, child canceler) {
if parent.Done() == nil {
return // parent is never canceled
}
if p, ok := parentCancelCtx(parent); ok {
p.mu.Lock()
if p.err != nil {
// parent has already been canceled
child.cancel(false, p.err)
} else {
if p.children == nil {
p.children = make(map[canceler]bool)
}
p.children[child] = true
}
p.mu.Unlock()
} else {
go func() {
select {
case <-parent.Done():
child.cancel(false, parent.Err())
case <-child.Done():
}
}()
}
}
// parentCancelCtx follows a chain of parent references until it finds a
// *cancelCtx. This function understands how each of the concrete types in this
// package represents its parent.
func parentCancelCtx(parent Context) (*cancelCtx, bool) {
for {
switch c := parent.(type) {
case *cancelCtx:
return c, true
case *timerCtx:
return c.cancelCtx, true
case *valueCtx:
parent = c.Context
default:
return nil, false
}
}
}
// removeChild removes a context from its parent.
func removeChild(parent Context, child canceler) {
p, ok := parentCancelCtx(parent)
if !ok {
return
}
p.mu.Lock()
if p.children != nil {
delete(p.children, child)
}
p.mu.Unlock()
}
// A canceler is a context type that can be canceled directly. The
// implementations are *cancelCtx and *timerCtx.
type canceler interface {
cancel(removeFromParent bool, err error)
Done() <-chan struct{}
}
// A cancelCtx can be canceled. When canceled, it also cancels any children
// that implement canceler.
type cancelCtx struct {
Context
done chan struct{} // closed by the first cancel call.
mu sync.Mutex
children map[canceler]bool // set to nil by the first cancel call
err error // set to non-nil by the first cancel call
}
func (c *cancelCtx) Done() <-chan struct{} {
return c.done
}
func (c *cancelCtx) Err() error {
c.mu.Lock()
defer c.mu.Unlock()
return c.err
}
func (c *cancelCtx) String() string {
return fmt.Sprintf("%v.WithCancel", c.Context)
}
// cancel closes c.done, cancels each of c's children, and, if
// removeFromParent is true, removes c from its parent's children.
func (c *cancelCtx) cancel(removeFromParent bool, err error) {
if err == nil {
panic("context: internal error: missing cancel error")
}
c.mu.Lock()
if c.err != nil {
c.mu.Unlock()
return // already canceled
}
c.err = err
close(c.done)
for child := range c.children {
// NOTE: acquiring the child's lock while holding parent's lock.
child.cancel(false, err)
}
c.children = nil
c.mu.Unlock()
if removeFromParent {
removeChild(c.Context, c)
}
}
// WithDeadline returns a copy of the parent context with the deadline adjusted
// to be no later than d. If the parent's deadline is already earlier than d,
// WithDeadline(parent, d) is semantically equivalent to parent. The returned
// context's Done channel is closed when the deadline expires, when the returned
// cancel function is called, or when the parent context's Done channel is
// closed, whichever happens first.
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete.
func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) {
if cur, ok := parent.Deadline(); ok && cur.Before(deadline) {
// The current deadline is already sooner than the new one.
return WithCancel(parent)
}
c := &timerCtx{
cancelCtx: newCancelCtx(parent),
deadline: deadline,
}
propagateCancel(parent, c)
d := deadline.Sub(time.Now())
if d <= 0 {
c.cancel(true, DeadlineExceeded) // deadline has already passed
return c, func() { c.cancel(true, Canceled) }
}
c.mu.Lock()
defer c.mu.Unlock()
if c.err == nil {
c.timer = time.AfterFunc(d, func() {
c.cancel(true, DeadlineExceeded)
})
}
return c, func() { c.cancel(true, Canceled) }
}
// A timerCtx carries a timer and a deadline. It embeds a cancelCtx to
// implement Done and Err. It implements cancel by stopping its timer then
// delegating to cancelCtx.cancel.
type timerCtx struct {
*cancelCtx
timer *time.Timer // Under cancelCtx.mu.
deadline time.Time
}
func (c *timerCtx) Deadline() (deadline time.Time, ok bool) {
return c.deadline, true
}
func (c *timerCtx) String() string {
return fmt.Sprintf("%v.WithDeadline(%s [%s])", c.cancelCtx.Context, c.deadline, c.deadline.Sub(time.Now()))
}
func (c *timerCtx) cancel(removeFromParent bool, err error) {
c.cancelCtx.cancel(false, err)
if removeFromParent {
// Remove this timerCtx from its parent cancelCtx's children.
removeChild(c.cancelCtx.Context, c)
}
c.mu.Lock()
if c.timer != nil {
c.timer.Stop()
c.timer = nil
}
c.mu.Unlock()
}
// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)).
//
// Canceling this context releases resources associated with it, so code should
// call cancel as soon as the operations running in this Context complete:
//
// func slowOperationWithTimeout(ctx context.Context) (Result, error) {
// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond)
// defer cancel() // releases resources if slowOperation completes before timeout elapses
// return slowOperation(ctx)
// }
func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) {
return WithDeadline(parent, time.Now().Add(timeout))
}
// WithValue returns a copy of parent in which the value associated with key is
// val.
//
// Use context Values only for request-scoped data that transits processes and
// APIs, not for passing optional parameters to functions.
func WithValue(parent Context, key interface{}, val interface{}) Context {
return &valueCtx{parent, key, val}
}
// A valueCtx carries a key-value pair. It implements Value for that key and
// delegates all other calls to the embedded Context.
type valueCtx struct {
Context
key, val interface{}
}
func (c *valueCtx) String() string {
return fmt.Sprintf("%v.WithValue(%#v, %#v)", c.Context, c.key, c.val)
}
func (c *valueCtx) Value(key interface{}) interface{} {
if c.key == key {
return c.val
}
return c.Context.Value(key)
}

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# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

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# Contributing to Go
Go is an open source project.
It is the work of hundreds of contributors. We appreciate your help!
## Filing issues
When [filing an issue](https://github.com/golang/oauth2/issues), make sure to answer these five questions:
1. What version of Go are you using (`go version`)?
2. What operating system and processor architecture are you using?
3. What did you do?
4. What did you expect to see?
5. What did you see instead?
General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
The gophers there will answer or ask you to file an issue if you've tripped over a bug.
## Contributing code
Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
before sending patches.
**We do not accept GitHub pull requests**
(we use [Gerrit](https://code.google.com/p/gerrit/) instead for code review).
Unless otherwise noted, the Go source files are distributed under
the BSD-style license found in the LICENSE file.

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# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

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Copyright (c) 2009 The oauth2 Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# OAuth2 for Go
[![Build Status](https://travis-ci.org/golang/oauth2.svg?branch=master)](https://travis-ci.org/golang/oauth2)
[![GoDoc](https://godoc.org/golang.org/x/oauth2?status.svg)](https://godoc.org/golang.org/x/oauth2)
oauth2 package contains a client implementation for OAuth 2.0 spec.
## Installation
~~~~
go get golang.org/x/oauth2
~~~~
See godoc for further documentation and examples.
* [godoc.org/golang.org/x/oauth2](http://godoc.org/golang.org/x/oauth2)
* [godoc.org/golang.org/x/oauth2/google](http://godoc.org/golang.org/x/oauth2/google)
## App Engine
In change 96e89be (March 2015) we removed the `oauth2.Context2` type in favor
of the [`context.Context`](https://golang.org/x/net/context#Context) type from
the `golang.org/x/net/context` package
This means its no longer possible to use the "Classic App Engine"
`appengine.Context` type with the `oauth2` package. (You're using
Classic App Engine if you import the package `"appengine"`.)
To work around this, you may use the new `"google.golang.org/appengine"`
package. This package has almost the same API as the `"appengine"` package,
but it can be fetched with `go get` and used on "Managed VMs" and well as
Classic App Engine.
See the [new `appengine` package's readme](https://github.com/golang/appengine#updating-a-go-app-engine-app)
for information on updating your app.
If you don't want to update your entire app to use the new App Engine packages,
you may use both sets of packages in parallel, using only the new packages
with the `oauth2` package.
import (
"golang.org/x/net/context"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
newappengine "google.golang.org/appengine"
newurlfetch "google.golang.org/appengine/urlfetch"
"appengine"
)
func handler(w http.ResponseWriter, r *http.Request) {
var c appengine.Context = appengine.NewContext(r)
c.Infof("Logging a message with the old package")
var ctx context.Context = newappengine.NewContext(r)
client := &http.Client{
Transport: &oauth2.Transport{
Source: google.AppEngineTokenSource(ctx, "scope"),
Base: &newurlfetch.Transport{Context: ctx},
},
}
client.Get("...")
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build appengine
// App Engine hooks.
package oauth2
import (
"net/http"
"golang.org/x/net/context"
"golang.org/x/oauth2/internal"
"google.golang.org/appengine/urlfetch"
)
func init() {
internal.RegisterContextClientFunc(contextClientAppEngine)
}
func contextClientAppEngine(ctx context.Context) (*http.Client, error) {
return urlfetch.Client(ctx), nil
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package google
import (
"sort"
"strings"
"sync"
"time"
"golang.org/x/net/context"
"golang.org/x/oauth2"
)
// Set at init time by appenginevm_hook.go. If true, we are on App Engine Managed VMs.
var appengineVM bool
// Set at init time by appengine_hook.go. If nil, we're not on App Engine.
var appengineTokenFunc func(c context.Context, scopes ...string) (token string, expiry time.Time, err error)
// AppEngineTokenSource returns a token source that fetches tokens
// issued to the current App Engine application's service account.
// If you are implementing a 3-legged OAuth 2.0 flow on App Engine
// that involves user accounts, see oauth2.Config instead.
//
// The provided context must have come from appengine.NewContext.
func AppEngineTokenSource(ctx context.Context, scope ...string) oauth2.TokenSource {
if appengineTokenFunc == nil {
panic("google: AppEngineTokenSource can only be used on App Engine.")
}
scopes := append([]string{}, scope...)
sort.Strings(scopes)
return &appEngineTokenSource{
ctx: ctx,
scopes: scopes,
key: strings.Join(scopes, " "),
}
}
// aeTokens helps the fetched tokens to be reused until their expiration.
var (
aeTokensMu sync.Mutex
aeTokens = make(map[string]*tokenLock) // key is space-separated scopes
)
type tokenLock struct {
mu sync.Mutex // guards t; held while fetching or updating t
t *oauth2.Token
}
type appEngineTokenSource struct {
ctx context.Context
scopes []string
key string // to aeTokens map; space-separated scopes
}
func (ts *appEngineTokenSource) Token() (*oauth2.Token, error) {
if appengineTokenFunc == nil {
panic("google: AppEngineTokenSource can only be used on App Engine.")
}
aeTokensMu.Lock()
tok, ok := aeTokens[ts.key]
if !ok {
tok = &tokenLock{}
aeTokens[ts.key] = tok
}
aeTokensMu.Unlock()
tok.mu.Lock()
defer tok.mu.Unlock()
if tok.t.Valid() {
return tok.t, nil
}
access, exp, err := appengineTokenFunc(ts.ctx, ts.scopes...)
if err != nil {
return nil, err
}
tok.t = &oauth2.Token{
AccessToken: access,
Expiry: exp,
}
return tok.t, nil
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build appengine
package google
import "google.golang.org/appengine"
func init() {
appengineTokenFunc = appengine.AccessToken
}

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// Copyright 2015 The oauth2 Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build appenginevm
package google
import "google.golang.org/appengine"
func init() {
appengineVM = true
appengineTokenFunc = appengine.AccessToken
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package google
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"net/http"
"os"
"path/filepath"
"runtime"
"cloud.google.com/go/compute/metadata"
"golang.org/x/net/context"
"golang.org/x/oauth2"
"golang.org/x/oauth2/jwt"
)
// DefaultClient returns an HTTP Client that uses the
// DefaultTokenSource to obtain authentication credentials.
//
// This client should be used when developing services
// that run on Google App Engine or Google Compute Engine
// and use "Application Default Credentials."
//
// For more details, see:
// https://developers.google.com/accounts/docs/application-default-credentials
//
func DefaultClient(ctx context.Context, scope ...string) (*http.Client, error) {
ts, err := DefaultTokenSource(ctx, scope...)
if err != nil {
return nil, err
}
return oauth2.NewClient(ctx, ts), nil
}
// DefaultTokenSource is a token source that uses
// "Application Default Credentials".
//
// It looks for credentials in the following places,
// preferring the first location found:
//
// 1. A JSON file whose path is specified by the
// GOOGLE_APPLICATION_CREDENTIALS environment variable.
// 2. A JSON file in a location known to the gcloud command-line tool.
// On Windows, this is %APPDATA%/gcloud/application_default_credentials.json.
// On other systems, $HOME/.config/gcloud/application_default_credentials.json.
// 3. On Google App Engine it uses the appengine.AccessToken function.
// 4. On Google Compute Engine and Google App Engine Managed VMs, it fetches
// credentials from the metadata server.
// (In this final case any provided scopes are ignored.)
//
// For more details, see:
// https://developers.google.com/accounts/docs/application-default-credentials
//
func DefaultTokenSource(ctx context.Context, scope ...string) (oauth2.TokenSource, error) {
// First, try the environment variable.
const envVar = "GOOGLE_APPLICATION_CREDENTIALS"
if filename := os.Getenv(envVar); filename != "" {
ts, err := tokenSourceFromFile(ctx, filename, scope)
if err != nil {
return nil, fmt.Errorf("google: error getting credentials using %v environment variable: %v", envVar, err)
}
return ts, nil
}
// Second, try a well-known file.
filename := wellKnownFile()
_, err := os.Stat(filename)
if err == nil {
ts, err2 := tokenSourceFromFile(ctx, filename, scope)
if err2 == nil {
return ts, nil
}
err = err2
} else if os.IsNotExist(err) {
err = nil // ignore this error
}
if err != nil {
return nil, fmt.Errorf("google: error getting credentials using well-known file (%v): %v", filename, err)
}
// Third, if we're on Google App Engine use those credentials.
if appengineTokenFunc != nil && !appengineVM {
return AppEngineTokenSource(ctx, scope...), nil
}
// Fourth, if we're on Google Compute Engine use the metadata server.
if metadata.OnGCE() {
return ComputeTokenSource(""), nil
}
// None are found; return helpful error.
const url = "https://developers.google.com/accounts/docs/application-default-credentials"
return nil, fmt.Errorf("google: could not find default credentials. See %v for more information.", url)
}
func wellKnownFile() string {
const f = "application_default_credentials.json"
if runtime.GOOS == "windows" {
return filepath.Join(os.Getenv("APPDATA"), "gcloud", f)
}
return filepath.Join(guessUnixHomeDir(), ".config", "gcloud", f)
}
func tokenSourceFromFile(ctx context.Context, filename string, scopes []string) (oauth2.TokenSource, error) {
b, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
var d struct {
// Common fields
Type string
ClientID string `json:"client_id"`
// User Credential fields
ClientSecret string `json:"client_secret"`
RefreshToken string `json:"refresh_token"`
// Service Account fields
ClientEmail string `json:"client_email"`
PrivateKeyID string `json:"private_key_id"`
PrivateKey string `json:"private_key"`
}
if err := json.Unmarshal(b, &d); err != nil {
return nil, err
}
switch d.Type {
case "authorized_user":
cfg := &oauth2.Config{
ClientID: d.ClientID,
ClientSecret: d.ClientSecret,
Scopes: append([]string{}, scopes...), // copy
Endpoint: Endpoint,
}
tok := &oauth2.Token{RefreshToken: d.RefreshToken}
return cfg.TokenSource(ctx, tok), nil
case "service_account":
cfg := &jwt.Config{
Email: d.ClientEmail,
PrivateKey: []byte(d.PrivateKey),
Scopes: append([]string{}, scopes...), // copy
TokenURL: JWTTokenURL,
}
return cfg.TokenSource(ctx), nil
case "":
return nil, errors.New("missing 'type' field in credentials")
default:
return nil, fmt.Errorf("unknown credential type: %q", d.Type)
}
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package google provides support for making OAuth2 authorized and
// authenticated HTTP requests to Google APIs.
// It supports the Web server flow, client-side credentials, service accounts,
// Google Compute Engine service accounts, and Google App Engine service
// accounts.
//
// For more information, please read
// https://developers.google.com/accounts/docs/OAuth2
// and
// https://developers.google.com/accounts/docs/application-default-credentials.
package google // import "golang.org/x/oauth2/google"
import (
"encoding/json"
"errors"
"fmt"
"strings"
"time"
"cloud.google.com/go/compute/metadata"
"golang.org/x/oauth2"
"golang.org/x/oauth2/jwt"
)
// Endpoint is Google's OAuth 2.0 endpoint.
var Endpoint = oauth2.Endpoint{
AuthURL: "https://accounts.google.com/o/oauth2/auth",
TokenURL: "https://accounts.google.com/o/oauth2/token",
}
// JWTTokenURL is Google's OAuth 2.0 token URL to use with the JWT flow.
const JWTTokenURL = "https://accounts.google.com/o/oauth2/token"
// ConfigFromJSON uses a Google Developers Console client_credentials.json
// file to construct a config.
// client_credentials.json can be downloaded from
// https://console.developers.google.com, under "Credentials". Download the Web
// application credentials in the JSON format and provide the contents of the
// file as jsonKey.
func ConfigFromJSON(jsonKey []byte, scope ...string) (*oauth2.Config, error) {
type cred struct {
ClientID string `json:"client_id"`
ClientSecret string `json:"client_secret"`
RedirectURIs []string `json:"redirect_uris"`
AuthURI string `json:"auth_uri"`
TokenURI string `json:"token_uri"`
}
var j struct {
Web *cred `json:"web"`
Installed *cred `json:"installed"`
}
if err := json.Unmarshal(jsonKey, &j); err != nil {
return nil, err
}
var c *cred
switch {
case j.Web != nil:
c = j.Web
case j.Installed != nil:
c = j.Installed
default:
return nil, fmt.Errorf("oauth2/google: no credentials found")
}
if len(c.RedirectURIs) < 1 {
return nil, errors.New("oauth2/google: missing redirect URL in the client_credentials.json")
}
return &oauth2.Config{
ClientID: c.ClientID,
ClientSecret: c.ClientSecret,
RedirectURL: c.RedirectURIs[0],
Scopes: scope,
Endpoint: oauth2.Endpoint{
AuthURL: c.AuthURI,
TokenURL: c.TokenURI,
},
}, nil
}
// JWTConfigFromJSON uses a Google Developers service account JSON key file to read
// the credentials that authorize and authenticate the requests.
// Create a service account on "Credentials" for your project at
// https://console.developers.google.com to download a JSON key file.
func JWTConfigFromJSON(jsonKey []byte, scope ...string) (*jwt.Config, error) {
var key struct {
Email string `json:"client_email"`
PrivateKey string `json:"private_key"`
PrivateKeyID string `json:"private_key_id"`
TokenURL string `json:"token_uri"`
}
if err := json.Unmarshal(jsonKey, &key); err != nil {
return nil, err
}
config := &jwt.Config{
Email: key.Email,
PrivateKey: []byte(key.PrivateKey),
PrivateKeyID: key.PrivateKeyID,
Scopes: scope,
TokenURL: key.TokenURL,
}
if config.TokenURL == "" {
config.TokenURL = JWTTokenURL
}
return config, nil
}
// ComputeTokenSource returns a token source that fetches access tokens
// from Google Compute Engine (GCE)'s metadata server. It's only valid to use
// this token source if your program is running on a GCE instance.
// If no account is specified, "default" is used.
// Further information about retrieving access tokens from the GCE metadata
// server can be found at https://cloud.google.com/compute/docs/authentication.
func ComputeTokenSource(account string) oauth2.TokenSource {
return oauth2.ReuseTokenSource(nil, computeSource{account: account})
}
type computeSource struct {
account string
}
func (cs computeSource) Token() (*oauth2.Token, error) {
if !metadata.OnGCE() {
return nil, errors.New("oauth2/google: can't get a token from the metadata service; not running on GCE")
}
acct := cs.account
if acct == "" {
acct = "default"
}
tokenJSON, err := metadata.Get("instance/service-accounts/" + acct + "/token")
if err != nil {
return nil, err
}
var res struct {
AccessToken string `json:"access_token"`
ExpiresInSec int `json:"expires_in"`
TokenType string `json:"token_type"`
}
err = json.NewDecoder(strings.NewReader(tokenJSON)).Decode(&res)
if err != nil {
return nil, fmt.Errorf("oauth2/google: invalid token JSON from metadata: %v", err)
}
if res.ExpiresInSec == 0 || res.AccessToken == "" {
return nil, fmt.Errorf("oauth2/google: incomplete token received from metadata")
}
return &oauth2.Token{
AccessToken: res.AccessToken,
TokenType: res.TokenType,
Expiry: time.Now().Add(time.Duration(res.ExpiresInSec) * time.Second),
}, nil
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package google
import (
"crypto/rsa"
"fmt"
"time"
"golang.org/x/oauth2"
"golang.org/x/oauth2/internal"
"golang.org/x/oauth2/jws"
)
// JWTAccessTokenSourceFromJSON uses a Google Developers service account JSON
// key file to read the credentials that authorize and authenticate the
// requests, and returns a TokenSource that does not use any OAuth2 flow but
// instead creates a JWT and sends that as the access token.
// The audience is typically a URL that specifies the scope of the credentials.
//
// Note that this is not a standard OAuth flow, but rather an
// optimization supported by a few Google services.
// Unless you know otherwise, you should use JWTConfigFromJSON instead.
func JWTAccessTokenSourceFromJSON(jsonKey []byte, audience string) (oauth2.TokenSource, error) {
cfg, err := JWTConfigFromJSON(jsonKey)
if err != nil {
return nil, fmt.Errorf("google: could not parse JSON key: %v", err)
}
pk, err := internal.ParseKey(cfg.PrivateKey)
if err != nil {
return nil, fmt.Errorf("google: could not parse key: %v", err)
}
ts := &jwtAccessTokenSource{
email: cfg.Email,
audience: audience,
pk: pk,
pkID: cfg.PrivateKeyID,
}
tok, err := ts.Token()
if err != nil {
return nil, err
}
return oauth2.ReuseTokenSource(tok, ts), nil
}
type jwtAccessTokenSource struct {
email, audience string
pk *rsa.PrivateKey
pkID string
}
func (ts *jwtAccessTokenSource) Token() (*oauth2.Token, error) {
iat := time.Now()
exp := iat.Add(time.Hour)
cs := &jws.ClaimSet{
Iss: ts.email,
Sub: ts.email,
Aud: ts.audience,
Iat: iat.Unix(),
Exp: exp.Unix(),
}
hdr := &jws.Header{
Algorithm: "RS256",
Typ: "JWT",
KeyID: string(ts.pkID),
}
msg, err := jws.Encode(hdr, cs, ts.pk)
if err != nil {
return nil, fmt.Errorf("google: could not encode JWT: %v", err)
}
return &oauth2.Token{AccessToken: msg, TokenType: "Bearer", Expiry: exp}, nil
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package google
import (
"encoding/json"
"errors"
"fmt"
"net/http"
"os"
"os/user"
"path/filepath"
"runtime"
"strings"
"time"
"golang.org/x/net/context"
"golang.org/x/oauth2"
"golang.org/x/oauth2/internal"
)
type sdkCredentials struct {
Data []struct {
Credential struct {
ClientID string `json:"client_id"`
ClientSecret string `json:"client_secret"`
AccessToken string `json:"access_token"`
RefreshToken string `json:"refresh_token"`
TokenExpiry *time.Time `json:"token_expiry"`
} `json:"credential"`
Key struct {
Account string `json:"account"`
Scope string `json:"scope"`
} `json:"key"`
}
}
// An SDKConfig provides access to tokens from an account already
// authorized via the Google Cloud SDK.
type SDKConfig struct {
conf oauth2.Config
initialToken *oauth2.Token
}
// NewSDKConfig creates an SDKConfig for the given Google Cloud SDK
// account. If account is empty, the account currently active in
// Google Cloud SDK properties is used.
// Google Cloud SDK credentials must be created by running `gcloud auth`
// before using this function.
// The Google Cloud SDK is available at https://cloud.google.com/sdk/.
func NewSDKConfig(account string) (*SDKConfig, error) {
configPath, err := sdkConfigPath()
if err != nil {
return nil, fmt.Errorf("oauth2/google: error getting SDK config path: %v", err)
}
credentialsPath := filepath.Join(configPath, "credentials")
f, err := os.Open(credentialsPath)
if err != nil {
return nil, fmt.Errorf("oauth2/google: failed to load SDK credentials: %v", err)
}
defer f.Close()
var c sdkCredentials
if err := json.NewDecoder(f).Decode(&c); err != nil {
return nil, fmt.Errorf("oauth2/google: failed to decode SDK credentials from %q: %v", credentialsPath, err)
}
if len(c.Data) == 0 {
return nil, fmt.Errorf("oauth2/google: no credentials found in %q, run `gcloud auth login` to create one", credentialsPath)
}
if account == "" {
propertiesPath := filepath.Join(configPath, "properties")
f, err := os.Open(propertiesPath)
if err != nil {
return nil, fmt.Errorf("oauth2/google: failed to load SDK properties: %v", err)
}
defer f.Close()
ini, err := internal.ParseINI(f)
if err != nil {
return nil, fmt.Errorf("oauth2/google: failed to parse SDK properties %q: %v", propertiesPath, err)
}
core, ok := ini["core"]
if !ok {
return nil, fmt.Errorf("oauth2/google: failed to find [core] section in %v", ini)
}
active, ok := core["account"]
if !ok {
return nil, fmt.Errorf("oauth2/google: failed to find %q attribute in %v", "account", core)
}
account = active
}
for _, d := range c.Data {
if account == "" || d.Key.Account == account {
if d.Credential.AccessToken == "" && d.Credential.RefreshToken == "" {
return nil, fmt.Errorf("oauth2/google: no token available for account %q", account)
}
var expiry time.Time
if d.Credential.TokenExpiry != nil {
expiry = *d.Credential.TokenExpiry
}
return &SDKConfig{
conf: oauth2.Config{
ClientID: d.Credential.ClientID,
ClientSecret: d.Credential.ClientSecret,
Scopes: strings.Split(d.Key.Scope, " "),
Endpoint: Endpoint,
RedirectURL: "oob",
},
initialToken: &oauth2.Token{
AccessToken: d.Credential.AccessToken,
RefreshToken: d.Credential.RefreshToken,
Expiry: expiry,
},
}, nil
}
}
return nil, fmt.Errorf("oauth2/google: no such credentials for account %q", account)
}
// Client returns an HTTP client using Google Cloud SDK credentials to
// authorize requests. The token will auto-refresh as necessary. The
// underlying http.RoundTripper will be obtained using the provided
// context. The returned client and its Transport should not be
// modified.
func (c *SDKConfig) Client(ctx context.Context) *http.Client {
return &http.Client{
Transport: &oauth2.Transport{
Source: c.TokenSource(ctx),
},
}
}
// TokenSource returns an oauth2.TokenSource that retrieve tokens from
// Google Cloud SDK credentials using the provided context.
// It will returns the current access token stored in the credentials,
// and refresh it when it expires, but it won't update the credentials
// with the new access token.
func (c *SDKConfig) TokenSource(ctx context.Context) oauth2.TokenSource {
return c.conf.TokenSource(ctx, c.initialToken)
}
// Scopes are the OAuth 2.0 scopes the current account is authorized for.
func (c *SDKConfig) Scopes() []string {
return c.conf.Scopes
}
// sdkConfigPath tries to guess where the gcloud config is located.
// It can be overridden during tests.
var sdkConfigPath = func() (string, error) {
if runtime.GOOS == "windows" {
return filepath.Join(os.Getenv("APPDATA"), "gcloud"), nil
}
homeDir := guessUnixHomeDir()
if homeDir == "" {
return "", errors.New("unable to get current user home directory: os/user lookup failed; $HOME is empty")
}
return filepath.Join(homeDir, ".config", "gcloud"), nil
}
func guessUnixHomeDir() string {
usr, err := user.Current()
if err == nil {
return usr.HomeDir
}
return os.Getenv("HOME")
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package internal contains support packages for oauth2 package.
package internal
import (
"bufio"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"errors"
"fmt"
"io"
"strings"
)
// ParseKey converts the binary contents of a private key file
// to an *rsa.PrivateKey. It detects whether the private key is in a
// PEM container or not. If so, it extracts the the private key
// from PEM container before conversion. It only supports PEM
// containers with no passphrase.
func ParseKey(key []byte) (*rsa.PrivateKey, error) {
block, _ := pem.Decode(key)
if block != nil {
key = block.Bytes
}
parsedKey, err := x509.ParsePKCS8PrivateKey(key)
if err != nil {
parsedKey, err = x509.ParsePKCS1PrivateKey(key)
if err != nil {
return nil, fmt.Errorf("private key should be a PEM or plain PKSC1 or PKCS8; parse error: %v", err)
}
}
parsed, ok := parsedKey.(*rsa.PrivateKey)
if !ok {
return nil, errors.New("private key is invalid")
}
return parsed, nil
}
func ParseINI(ini io.Reader) (map[string]map[string]string, error) {
result := map[string]map[string]string{
"": map[string]string{}, // root section
}
scanner := bufio.NewScanner(ini)
currentSection := ""
for scanner.Scan() {
line := strings.TrimSpace(scanner.Text())
if strings.HasPrefix(line, ";") {
// comment.
continue
}
if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
currentSection = strings.TrimSpace(line[1 : len(line)-1])
result[currentSection] = map[string]string{}
continue
}
parts := strings.SplitN(line, "=", 2)
if len(parts) == 2 && parts[0] != "" {
result[currentSection][strings.TrimSpace(parts[0])] = strings.TrimSpace(parts[1])
}
}
if err := scanner.Err(); err != nil {
return nil, fmt.Errorf("error scanning ini: %v", err)
}
return result, nil
}
func CondVal(v string) []string {
if v == "" {
return nil
}
return []string{v}
}

225
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package internal contains support packages for oauth2 package.
package internal
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
"mime"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"golang.org/x/net/context"
)
// Token represents the crendentials used to authorize
// the requests to access protected resources on the OAuth 2.0
// provider's backend.
//
// This type is a mirror of oauth2.Token and exists to break
// an otherwise-circular dependency. Other internal packages
// should convert this Token into an oauth2.Token before use.
type Token struct {
// AccessToken is the token that authorizes and authenticates
// the requests.
AccessToken string
// TokenType is the type of token.
// The Type method returns either this or "Bearer", the default.
TokenType string
// RefreshToken is a token that's used by the application
// (as opposed to the user) to refresh the access token
// if it expires.
RefreshToken string
// Expiry is the optional expiration time of the access token.
//
// If zero, TokenSource implementations will reuse the same
// token forever and RefreshToken or equivalent
// mechanisms for that TokenSource will not be used.
Expiry time.Time
// Raw optionally contains extra metadata from the server
// when updating a token.
Raw interface{}
}
// tokenJSON is the struct representing the HTTP response from OAuth2
// providers returning a token in JSON form.
type tokenJSON struct {
AccessToken string `json:"access_token"`
TokenType string `json:"token_type"`
RefreshToken string `json:"refresh_token"`
ExpiresIn expirationTime `json:"expires_in"` // at least PayPal returns string, while most return number
Expires expirationTime `json:"expires"` // broken Facebook spelling of expires_in
}
func (e *tokenJSON) expiry() (t time.Time) {
if v := e.ExpiresIn; v != 0 {
return time.Now().Add(time.Duration(v) * time.Second)
}
if v := e.Expires; v != 0 {
return time.Now().Add(time.Duration(v) * time.Second)
}
return
}
type expirationTime int32
func (e *expirationTime) UnmarshalJSON(b []byte) error {
var n json.Number
err := json.Unmarshal(b, &n)
if err != nil {
return err
}
i, err := n.Int64()
if err != nil {
return err
}
*e = expirationTime(i)
return nil
}
var brokenAuthHeaderProviders = []string{
"https://accounts.google.com/",
"https://api.dropbox.com/",
"https://api.dropboxapi.com/",
"https://api.instagram.com/",
"https://api.netatmo.net/",
"https://api.odnoklassniki.ru/",
"https://api.pushbullet.com/",
"https://api.soundcloud.com/",
"https://api.twitch.tv/",
"https://app.box.com/",
"https://connect.stripe.com/",
"https://login.microsoftonline.com/",
"https://login.salesforce.com/",
"https://oauth.sandbox.trainingpeaks.com/",
"https://oauth.trainingpeaks.com/",
"https://oauth.vk.com/",
"https://openapi.baidu.com/",
"https://slack.com/",
"https://test-sandbox.auth.corp.google.com",
"https://test.salesforce.com/",
"https://user.gini.net/",
"https://www.douban.com/",
"https://www.googleapis.com/",
"https://www.linkedin.com/",
"https://www.strava.com/oauth/",
"https://www.wunderlist.com/oauth/",
"https://api.patreon.com/",
}
func RegisterBrokenAuthHeaderProvider(tokenURL string) {
brokenAuthHeaderProviders = append(brokenAuthHeaderProviders, tokenURL)
}
// providerAuthHeaderWorks reports whether the OAuth2 server identified by the tokenURL
// implements the OAuth2 spec correctly
// See https://code.google.com/p/goauth2/issues/detail?id=31 for background.
// In summary:
// - Reddit only accepts client secret in the Authorization header
// - Dropbox accepts either it in URL param or Auth header, but not both.
// - Google only accepts URL param (not spec compliant?), not Auth header
// - Stripe only accepts client secret in Auth header with Bearer method, not Basic
func providerAuthHeaderWorks(tokenURL string) bool {
for _, s := range brokenAuthHeaderProviders {
if strings.HasPrefix(tokenURL, s) {
// Some sites fail to implement the OAuth2 spec fully.
return false
}
}
// Assume the provider implements the spec properly
// otherwise. We can add more exceptions as they're
// discovered. We will _not_ be adding configurable hooks
// to this package to let users select server bugs.
return true
}
func RetrieveToken(ctx context.Context, clientID, clientSecret, tokenURL string, v url.Values) (*Token, error) {
hc, err := ContextClient(ctx)
if err != nil {
return nil, err
}
v.Set("client_id", clientID)
bustedAuth := !providerAuthHeaderWorks(tokenURL)
if bustedAuth && clientSecret != "" {
v.Set("client_secret", clientSecret)
}
req, err := http.NewRequest("POST", tokenURL, strings.NewReader(v.Encode()))
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
if !bustedAuth {
req.SetBasicAuth(clientID, clientSecret)
}
r, err := hc.Do(req)
if err != nil {
return nil, err
}
defer r.Body.Close()
body, err := ioutil.ReadAll(io.LimitReader(r.Body, 1<<20))
if err != nil {
return nil, fmt.Errorf("oauth2: cannot fetch token: %v", err)
}
if code := r.StatusCode; code < 200 || code > 299 {
return nil, fmt.Errorf("oauth2: cannot fetch token: %v\nResponse: %s", r.Status, body)
}
var token *Token
content, _, _ := mime.ParseMediaType(r.Header.Get("Content-Type"))
switch content {
case "application/x-www-form-urlencoded", "text/plain":
vals, err := url.ParseQuery(string(body))
if err != nil {
return nil, err
}
token = &Token{
AccessToken: vals.Get("access_token"),
TokenType: vals.Get("token_type"),
RefreshToken: vals.Get("refresh_token"),
Raw: vals,
}
e := vals.Get("expires_in")
if e == "" {
// TODO(jbd): Facebook's OAuth2 implementation is broken and
// returns expires_in field in expires. Remove the fallback to expires,
// when Facebook fixes their implementation.
e = vals.Get("expires")
}
expires, _ := strconv.Atoi(e)
if expires != 0 {
token.Expiry = time.Now().Add(time.Duration(expires) * time.Second)
}
default:
var tj tokenJSON
if err = json.Unmarshal(body, &tj); err != nil {
return nil, err
}
token = &Token{
AccessToken: tj.AccessToken,
TokenType: tj.TokenType,
RefreshToken: tj.RefreshToken,
Expiry: tj.expiry(),
Raw: make(map[string]interface{}),
}
json.Unmarshal(body, &token.Raw) // no error checks for optional fields
}
// Don't overwrite `RefreshToken` with an empty value
// if this was a token refreshing request.
if token.RefreshToken == "" {
token.RefreshToken = v.Get("refresh_token")
}
return token, nil
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package internal contains support packages for oauth2 package.
package internal
import (
"net/http"
"golang.org/x/net/context"
)
// HTTPClient is the context key to use with golang.org/x/net/context's
// WithValue function to associate an *http.Client value with a context.
var HTTPClient ContextKey
// ContextKey is just an empty struct. It exists so HTTPClient can be
// an immutable public variable with a unique type. It's immutable
// because nobody else can create a ContextKey, being unexported.
type ContextKey struct{}
// ContextClientFunc is a func which tries to return an *http.Client
// given a Context value. If it returns an error, the search stops
// with that error. If it returns (nil, nil), the search continues
// down the list of registered funcs.
type ContextClientFunc func(context.Context) (*http.Client, error)
var contextClientFuncs []ContextClientFunc
func RegisterContextClientFunc(fn ContextClientFunc) {
contextClientFuncs = append(contextClientFuncs, fn)
}
func ContextClient(ctx context.Context) (*http.Client, error) {
if ctx != nil {
if hc, ok := ctx.Value(HTTPClient).(*http.Client); ok {
return hc, nil
}
}
for _, fn := range contextClientFuncs {
c, err := fn(ctx)
if err != nil {
return nil, err
}
if c != nil {
return c, nil
}
}
return http.DefaultClient, nil
}
func ContextTransport(ctx context.Context) http.RoundTripper {
hc, err := ContextClient(ctx)
// This is a rare error case (somebody using nil on App Engine).
if err != nil {
return ErrorTransport{err}
}
return hc.Transport
}
// ErrorTransport returns the specified error on RoundTrip.
// This RoundTripper should be used in rare error cases where
// error handling can be postponed to response handling time.
type ErrorTransport struct{ Err error }
func (t ErrorTransport) RoundTrip(*http.Request) (*http.Response, error) {
return nil, t.Err
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package jws provides a partial implementation
// of JSON Web Signature encoding and decoding.
// It exists to support the golang.org/x/oauth2 package.
//
// See RFC 7515.
//
// Deprecated: this package is not intended for public use and might be
// removed in the future. It exists for internal use only.
// Please switch to another JWS package or copy this package into your own
// source tree.
package jws // import "golang.org/x/oauth2/jws"
import (
"bytes"
"crypto"
"crypto/rand"
"crypto/rsa"
"crypto/sha256"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"strings"
"time"
)
// ClaimSet contains information about the JWT signature including the
// permissions being requested (scopes), the target of the token, the issuer,
// the time the token was issued, and the lifetime of the token.
type ClaimSet struct {
Iss string `json:"iss"` // email address of the client_id of the application making the access token request
Scope string `json:"scope,omitempty"` // space-delimited list of the permissions the application requests
Aud string `json:"aud"` // descriptor of the intended target of the assertion (Optional).
Exp int64 `json:"exp"` // the expiration time of the assertion (seconds since Unix epoch)
Iat int64 `json:"iat"` // the time the assertion was issued (seconds since Unix epoch)
Typ string `json:"typ,omitempty"` // token type (Optional).
// Email for which the application is requesting delegated access (Optional).
Sub string `json:"sub,omitempty"`
// The old name of Sub. Client keeps setting Prn to be
// complaint with legacy OAuth 2.0 providers. (Optional)
Prn string `json:"prn,omitempty"`
// See http://tools.ietf.org/html/draft-jones-json-web-token-10#section-4.3
// This array is marshalled using custom code (see (c *ClaimSet) encode()).
PrivateClaims map[string]interface{} `json:"-"`
}
func (c *ClaimSet) encode() (string, error) {
// Reverting time back for machines whose time is not perfectly in sync.
// If client machine's time is in the future according
// to Google servers, an access token will not be issued.
now := time.Now().Add(-10 * time.Second)
if c.Iat == 0 {
c.Iat = now.Unix()
}
if c.Exp == 0 {
c.Exp = now.Add(time.Hour).Unix()
}
if c.Exp < c.Iat {
return "", fmt.Errorf("jws: invalid Exp = %v; must be later than Iat = %v", c.Exp, c.Iat)
}
b, err := json.Marshal(c)
if err != nil {
return "", err
}
if len(c.PrivateClaims) == 0 {
return base64.RawURLEncoding.EncodeToString(b), nil
}
// Marshal private claim set and then append it to b.
prv, err := json.Marshal(c.PrivateClaims)
if err != nil {
return "", fmt.Errorf("jws: invalid map of private claims %v", c.PrivateClaims)
}
// Concatenate public and private claim JSON objects.
if !bytes.HasSuffix(b, []byte{'}'}) {
return "", fmt.Errorf("jws: invalid JSON %s", b)
}
if !bytes.HasPrefix(prv, []byte{'{'}) {
return "", fmt.Errorf("jws: invalid JSON %s", prv)
}
b[len(b)-1] = ',' // Replace closing curly brace with a comma.
b = append(b, prv[1:]...) // Append private claims.
return base64.RawURLEncoding.EncodeToString(b), nil
}
// Header represents the header for the signed JWS payloads.
type Header struct {
// The algorithm used for signature.
Algorithm string `json:"alg"`
// Represents the token type.
Typ string `json:"typ"`
// The optional hint of which key is being used.
KeyID string `json:"kid,omitempty"`
}
func (h *Header) encode() (string, error) {
b, err := json.Marshal(h)
if err != nil {
return "", err
}
return base64.RawURLEncoding.EncodeToString(b), nil
}
// Decode decodes a claim set from a JWS payload.
func Decode(payload string) (*ClaimSet, error) {
// decode returned id token to get expiry
s := strings.Split(payload, ".")
if len(s) < 2 {
// TODO(jbd): Provide more context about the error.
return nil, errors.New("jws: invalid token received")
}
decoded, err := base64.RawURLEncoding.DecodeString(s[1])
if err != nil {
return nil, err
}
c := &ClaimSet{}
err = json.NewDecoder(bytes.NewBuffer(decoded)).Decode(c)
return c, err
}
// Signer returns a signature for the given data.
type Signer func(data []byte) (sig []byte, err error)
// EncodeWithSigner encodes a header and claim set with the provided signer.
func EncodeWithSigner(header *Header, c *ClaimSet, sg Signer) (string, error) {
head, err := header.encode()
if err != nil {
return "", err
}
cs, err := c.encode()
if err != nil {
return "", err
}
ss := fmt.Sprintf("%s.%s", head, cs)
sig, err := sg([]byte(ss))
if err != nil {
return "", err
}
return fmt.Sprintf("%s.%s", ss, base64.RawURLEncoding.EncodeToString(sig)), nil
}
// Encode encodes a signed JWS with provided header and claim set.
// This invokes EncodeWithSigner using crypto/rsa.SignPKCS1v15 with the given RSA private key.
func Encode(header *Header, c *ClaimSet, key *rsa.PrivateKey) (string, error) {
sg := func(data []byte) (sig []byte, err error) {
h := sha256.New()
h.Write(data)
return rsa.SignPKCS1v15(rand.Reader, key, crypto.SHA256, h.Sum(nil))
}
return EncodeWithSigner(header, c, sg)
}
// Verify tests whether the provided JWT token's signature was produced by the private key
// associated with the supplied public key.
func Verify(token string, key *rsa.PublicKey) error {
parts := strings.Split(token, ".")
if len(parts) != 3 {
return errors.New("jws: invalid token received, token must have 3 parts")
}
signedContent := parts[0] + "." + parts[1]
signatureString, err := base64.RawURLEncoding.DecodeString(parts[2])
if err != nil {
return err
}
h := sha256.New()
h.Write([]byte(signedContent))
return rsa.VerifyPKCS1v15(key, crypto.SHA256, h.Sum(nil), []byte(signatureString))
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package jwt implements the OAuth 2.0 JSON Web Token flow, commonly
// known as "two-legged OAuth 2.0".
//
// See: https://tools.ietf.org/html/draft-ietf-oauth-jwt-bearer-12
package jwt
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"strings"
"time"
"golang.org/x/net/context"
"golang.org/x/oauth2"
"golang.org/x/oauth2/internal"
"golang.org/x/oauth2/jws"
)
var (
defaultGrantType = "urn:ietf:params:oauth:grant-type:jwt-bearer"
defaultHeader = &jws.Header{Algorithm: "RS256", Typ: "JWT"}
)
// Config is the configuration for using JWT to fetch tokens,
// commonly known as "two-legged OAuth 2.0".
type Config struct {
// Email is the OAuth client identifier used when communicating with
// the configured OAuth provider.
Email string
// PrivateKey contains the contents of an RSA private key or the
// contents of a PEM file that contains a private key. The provided
// private key is used to sign JWT payloads.
// PEM containers with a passphrase are not supported.
// Use the following command to convert a PKCS 12 file into a PEM.
//
// $ openssl pkcs12 -in key.p12 -out key.pem -nodes
//
PrivateKey []byte
// PrivateKeyID contains an optional hint indicating which key is being
// used.
PrivateKeyID string
// Subject is the optional user to impersonate.
Subject string
// Scopes optionally specifies a list of requested permission scopes.
Scopes []string
// TokenURL is the endpoint required to complete the 2-legged JWT flow.
TokenURL string
// Expires optionally specifies how long the token is valid for.
Expires time.Duration
}
// TokenSource returns a JWT TokenSource using the configuration
// in c and the HTTP client from the provided context.
func (c *Config) TokenSource(ctx context.Context) oauth2.TokenSource {
return oauth2.ReuseTokenSource(nil, jwtSource{ctx, c})
}
// Client returns an HTTP client wrapping the context's
// HTTP transport and adding Authorization headers with tokens
// obtained from c.
//
// The returned client and its Transport should not be modified.
func (c *Config) Client(ctx context.Context) *http.Client {
return oauth2.NewClient(ctx, c.TokenSource(ctx))
}
// jwtSource is a source that always does a signed JWT request for a token.
// It should typically be wrapped with a reuseTokenSource.
type jwtSource struct {
ctx context.Context
conf *Config
}
func (js jwtSource) Token() (*oauth2.Token, error) {
pk, err := internal.ParseKey(js.conf.PrivateKey)
if err != nil {
return nil, err
}
hc := oauth2.NewClient(js.ctx, nil)
claimSet := &jws.ClaimSet{
Iss: js.conf.Email,
Scope: strings.Join(js.conf.Scopes, " "),
Aud: js.conf.TokenURL,
}
if subject := js.conf.Subject; subject != "" {
claimSet.Sub = subject
// prn is the old name of sub. Keep setting it
// to be compatible with legacy OAuth 2.0 providers.
claimSet.Prn = subject
}
if t := js.conf.Expires; t > 0 {
claimSet.Exp = time.Now().Add(t).Unix()
}
payload, err := jws.Encode(defaultHeader, claimSet, pk)
if err != nil {
return nil, err
}
v := url.Values{}
v.Set("grant_type", defaultGrantType)
v.Set("assertion", payload)
resp, err := hc.PostForm(js.conf.TokenURL, v)
if err != nil {
return nil, fmt.Errorf("oauth2: cannot fetch token: %v", err)
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(io.LimitReader(resp.Body, 1<<20))
if err != nil {
return nil, fmt.Errorf("oauth2: cannot fetch token: %v", err)
}
if c := resp.StatusCode; c < 200 || c > 299 {
return nil, fmt.Errorf("oauth2: cannot fetch token: %v\nResponse: %s", resp.Status, body)
}
// tokenRes is the JSON response body.
var tokenRes struct {
AccessToken string `json:"access_token"`
TokenType string `json:"token_type"`
IDToken string `json:"id_token"`
ExpiresIn int64 `json:"expires_in"` // relative seconds from now
}
if err := json.Unmarshal(body, &tokenRes); err != nil {
return nil, fmt.Errorf("oauth2: cannot fetch token: %v", err)
}
token := &oauth2.Token{
AccessToken: tokenRes.AccessToken,
TokenType: tokenRes.TokenType,
}
raw := make(map[string]interface{})
json.Unmarshal(body, &raw) // no error checks for optional fields
token = token.WithExtra(raw)
if secs := tokenRes.ExpiresIn; secs > 0 {
token.Expiry = time.Now().Add(time.Duration(secs) * time.Second)
}
if v := tokenRes.IDToken; v != "" {
// decode returned id token to get expiry
claimSet, err := jws.Decode(v)
if err != nil {
return nil, fmt.Errorf("oauth2: error decoding JWT token: %v", err)
}
token.Expiry = time.Unix(claimSet.Exp, 0)
}
return token, nil
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package oauth2 provides support for making
// OAuth2 authorized and authenticated HTTP requests.
// It can additionally grant authorization with Bearer JWT.
package oauth2 // import "golang.org/x/oauth2"
import (
"bytes"
"errors"
"net/http"
"net/url"
"strings"
"sync"
"golang.org/x/net/context"
"golang.org/x/oauth2/internal"
)
// NoContext is the default context you should supply if not using
// your own context.Context (see https://golang.org/x/net/context).
//
// Deprecated: Use context.Background() or context.TODO() instead.
var NoContext = context.TODO()
// RegisterBrokenAuthHeaderProvider registers an OAuth2 server
// identified by the tokenURL prefix as an OAuth2 implementation
// which doesn't support the HTTP Basic authentication
// scheme to authenticate with the authorization server.
// Once a server is registered, credentials (client_id and client_secret)
// will be passed as query parameters rather than being present
// in the Authorization header.
// See https://code.google.com/p/goauth2/issues/detail?id=31 for background.
func RegisterBrokenAuthHeaderProvider(tokenURL string) {
internal.RegisterBrokenAuthHeaderProvider(tokenURL)
}
// Config describes a typical 3-legged OAuth2 flow, with both the
// client application information and the server's endpoint URLs.
// For the client credentials 2-legged OAuth2 flow, see the clientcredentials
// package (https://golang.org/x/oauth2/clientcredentials).
type Config struct {
// ClientID is the application's ID.
ClientID string
// ClientSecret is the application's secret.
ClientSecret string
// Endpoint contains the resource server's token endpoint
// URLs. These are constants specific to each server and are
// often available via site-specific packages, such as
// google.Endpoint or github.Endpoint.
Endpoint Endpoint
// RedirectURL is the URL to redirect users going through
// the OAuth flow, after the resource owner's URLs.
RedirectURL string
// Scope specifies optional requested permissions.
Scopes []string
}
// A TokenSource is anything that can return a token.
type TokenSource interface {
// Token returns a token or an error.
// Token must be safe for concurrent use by multiple goroutines.
// The returned Token must not be modified.
Token() (*Token, error)
}
// Endpoint contains the OAuth 2.0 provider's authorization and token
// endpoint URLs.
type Endpoint struct {
AuthURL string
TokenURL string
}
var (
// AccessTypeOnline and AccessTypeOffline are options passed
// to the Options.AuthCodeURL method. They modify the
// "access_type" field that gets sent in the URL returned by
// AuthCodeURL.
//
// Online is the default if neither is specified. If your
// application needs to refresh access tokens when the user
// is not present at the browser, then use offline. This will
// result in your application obtaining a refresh token the
// first time your application exchanges an authorization
// code for a user.
AccessTypeOnline AuthCodeOption = SetAuthURLParam("access_type", "online")
AccessTypeOffline AuthCodeOption = SetAuthURLParam("access_type", "offline")
// ApprovalForce forces the users to view the consent dialog
// and confirm the permissions request at the URL returned
// from AuthCodeURL, even if they've already done so.
ApprovalForce AuthCodeOption = SetAuthURLParam("approval_prompt", "force")
)
// An AuthCodeOption is passed to Config.AuthCodeURL.
type AuthCodeOption interface {
setValue(url.Values)
}
type setParam struct{ k, v string }
func (p setParam) setValue(m url.Values) { m.Set(p.k, p.v) }
// SetAuthURLParam builds an AuthCodeOption which passes key/value parameters
// to a provider's authorization endpoint.
func SetAuthURLParam(key, value string) AuthCodeOption {
return setParam{key, value}
}
// AuthCodeURL returns a URL to OAuth 2.0 provider's consent page
// that asks for permissions for the required scopes explicitly.
//
// State is a token to protect the user from CSRF attacks. You must
// always provide a non-zero string and validate that it matches the
// the state query parameter on your redirect callback.
// See http://tools.ietf.org/html/rfc6749#section-10.12 for more info.
//
// Opts may include AccessTypeOnline or AccessTypeOffline, as well
// as ApprovalForce.
func (c *Config) AuthCodeURL(state string, opts ...AuthCodeOption) string {
var buf bytes.Buffer
buf.WriteString(c.Endpoint.AuthURL)
v := url.Values{
"response_type": {"code"},
"client_id": {c.ClientID},
"redirect_uri": internal.CondVal(c.RedirectURL),
"scope": internal.CondVal(strings.Join(c.Scopes, " ")),
"state": internal.CondVal(state),
}
for _, opt := range opts {
opt.setValue(v)
}
if strings.Contains(c.Endpoint.AuthURL, "?") {
buf.WriteByte('&')
} else {
buf.WriteByte('?')
}
buf.WriteString(v.Encode())
return buf.String()
}
// PasswordCredentialsToken converts a resource owner username and password
// pair into a token.
//
// Per the RFC, this grant type should only be used "when there is a high
// degree of trust between the resource owner and the client (e.g., the client
// is part of the device operating system or a highly privileged application),
// and when other authorization grant types are not available."
// See https://tools.ietf.org/html/rfc6749#section-4.3 for more info.
//
// The HTTP client to use is derived from the context.
// If nil, http.DefaultClient is used.
func (c *Config) PasswordCredentialsToken(ctx context.Context, username, password string) (*Token, error) {
return retrieveToken(ctx, c, url.Values{
"grant_type": {"password"},
"username": {username},
"password": {password},
"scope": internal.CondVal(strings.Join(c.Scopes, " ")),
})
}
// Exchange converts an authorization code into a token.
//
// It is used after a resource provider redirects the user back
// to the Redirect URI (the URL obtained from AuthCodeURL).
//
// The HTTP client to use is derived from the context.
// If a client is not provided via the context, http.DefaultClient is used.
//
// The code will be in the *http.Request.FormValue("code"). Before
// calling Exchange, be sure to validate FormValue("state").
func (c *Config) Exchange(ctx context.Context, code string) (*Token, error) {
return retrieveToken(ctx, c, url.Values{
"grant_type": {"authorization_code"},
"code": {code},
"redirect_uri": internal.CondVal(c.RedirectURL),
"scope": internal.CondVal(strings.Join(c.Scopes, " ")),
})
}
// Client returns an HTTP client using the provided token.
// The token will auto-refresh as necessary. The underlying
// HTTP transport will be obtained using the provided context.
// The returned client and its Transport should not be modified.
func (c *Config) Client(ctx context.Context, t *Token) *http.Client {
return NewClient(ctx, c.TokenSource(ctx, t))
}
// TokenSource returns a TokenSource that returns t until t expires,
// automatically refreshing it as necessary using the provided context.
//
// Most users will use Config.Client instead.
func (c *Config) TokenSource(ctx context.Context, t *Token) TokenSource {
tkr := &tokenRefresher{
ctx: ctx,
conf: c,
}
if t != nil {
tkr.refreshToken = t.RefreshToken
}
return &reuseTokenSource{
t: t,
new: tkr,
}
}
// tokenRefresher is a TokenSource that makes "grant_type"=="refresh_token"
// HTTP requests to renew a token using a RefreshToken.
type tokenRefresher struct {
ctx context.Context // used to get HTTP requests
conf *Config
refreshToken string
}
// WARNING: Token is not safe for concurrent access, as it
// updates the tokenRefresher's refreshToken field.
// Within this package, it is used by reuseTokenSource which
// synchronizes calls to this method with its own mutex.
func (tf *tokenRefresher) Token() (*Token, error) {
if tf.refreshToken == "" {
return nil, errors.New("oauth2: token expired and refresh token is not set")
}
tk, err := retrieveToken(tf.ctx, tf.conf, url.Values{
"grant_type": {"refresh_token"},
"refresh_token": {tf.refreshToken},
})
if err != nil {
return nil, err
}
if tf.refreshToken != tk.RefreshToken {
tf.refreshToken = tk.RefreshToken
}
return tk, err
}
// reuseTokenSource is a TokenSource that holds a single token in memory
// and validates its expiry before each call to retrieve it with
// Token. If it's expired, it will be auto-refreshed using the
// new TokenSource.
type reuseTokenSource struct {
new TokenSource // called when t is expired.
mu sync.Mutex // guards t
t *Token
}
// Token returns the current token if it's still valid, else will
// refresh the current token (using r.Context for HTTP client
// information) and return the new one.
func (s *reuseTokenSource) Token() (*Token, error) {
s.mu.Lock()
defer s.mu.Unlock()
if s.t.Valid() {
return s.t, nil
}
t, err := s.new.Token()
if err != nil {
return nil, err
}
s.t = t
return t, nil
}
// StaticTokenSource returns a TokenSource that always returns the same token.
// Because the provided token t is never refreshed, StaticTokenSource is only
// useful for tokens that never expire.
func StaticTokenSource(t *Token) TokenSource {
return staticTokenSource{t}
}
// staticTokenSource is a TokenSource that always returns the same Token.
type staticTokenSource struct {
t *Token
}
func (s staticTokenSource) Token() (*Token, error) {
return s.t, nil
}
// HTTPClient is the context key to use with golang.org/x/net/context's
// WithValue function to associate an *http.Client value with a context.
var HTTPClient internal.ContextKey
// NewClient creates an *http.Client from a Context and TokenSource.
// The returned client is not valid beyond the lifetime of the context.
//
// As a special case, if src is nil, a non-OAuth2 client is returned
// using the provided context. This exists to support related OAuth2
// packages.
func NewClient(ctx context.Context, src TokenSource) *http.Client {
if src == nil {
c, err := internal.ContextClient(ctx)
if err != nil {
return &http.Client{Transport: internal.ErrorTransport{Err: err}}
}
return c
}
return &http.Client{
Transport: &Transport{
Base: internal.ContextTransport(ctx),
Source: ReuseTokenSource(nil, src),
},
}
}
// ReuseTokenSource returns a TokenSource which repeatedly returns the
// same token as long as it's valid, starting with t.
// When its cached token is invalid, a new token is obtained from src.
//
// ReuseTokenSource is typically used to reuse tokens from a cache
// (such as a file on disk) between runs of a program, rather than
// obtaining new tokens unnecessarily.
//
// The initial token t may be nil, in which case the TokenSource is
// wrapped in a caching version if it isn't one already. This also
// means it's always safe to wrap ReuseTokenSource around any other
// TokenSource without adverse effects.
func ReuseTokenSource(t *Token, src TokenSource) TokenSource {
// Don't wrap a reuseTokenSource in itself. That would work,
// but cause an unnecessary number of mutex operations.
// Just build the equivalent one.
if rt, ok := src.(*reuseTokenSource); ok {
if t == nil {
// Just use it directly.
return rt
}
src = rt.new
}
return &reuseTokenSource{
t: t,
new: src,
}
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package oauth2
import (
"net/http"
"net/url"
"strconv"
"strings"
"time"
"golang.org/x/net/context"
"golang.org/x/oauth2/internal"
)
// expiryDelta determines how earlier a token should be considered
// expired than its actual expiration time. It is used to avoid late
// expirations due to client-server time mismatches.
const expiryDelta = 10 * time.Second
// Token represents the crendentials used to authorize
// the requests to access protected resources on the OAuth 2.0
// provider's backend.
//
// Most users of this package should not access fields of Token
// directly. They're exported mostly for use by related packages
// implementing derivative OAuth2 flows.
type Token struct {
// AccessToken is the token that authorizes and authenticates
// the requests.
AccessToken string `json:"access_token"`
// TokenType is the type of token.
// The Type method returns either this or "Bearer", the default.
TokenType string `json:"token_type,omitempty"`
// RefreshToken is a token that's used by the application
// (as opposed to the user) to refresh the access token
// if it expires.
RefreshToken string `json:"refresh_token,omitempty"`
// Expiry is the optional expiration time of the access token.
//
// If zero, TokenSource implementations will reuse the same
// token forever and RefreshToken or equivalent
// mechanisms for that TokenSource will not be used.
Expiry time.Time `json:"expiry,omitempty"`
// raw optionally contains extra metadata from the server
// when updating a token.
raw interface{}
}
// Type returns t.TokenType if non-empty, else "Bearer".
func (t *Token) Type() string {
if strings.EqualFold(t.TokenType, "bearer") {
return "Bearer"
}
if strings.EqualFold(t.TokenType, "mac") {
return "MAC"
}
if strings.EqualFold(t.TokenType, "basic") {
return "Basic"
}
if t.TokenType != "" {
return t.TokenType
}
return "Bearer"
}
// SetAuthHeader sets the Authorization header to r using the access
// token in t.
//
// This method is unnecessary when using Transport or an HTTP Client
// returned by this package.
func (t *Token) SetAuthHeader(r *http.Request) {
r.Header.Set("Authorization", t.Type()+" "+t.AccessToken)
}
// WithExtra returns a new Token that's a clone of t, but using the
// provided raw extra map. This is only intended for use by packages
// implementing derivative OAuth2 flows.
func (t *Token) WithExtra(extra interface{}) *Token {
t2 := new(Token)
*t2 = *t
t2.raw = extra
return t2
}
// Extra returns an extra field.
// Extra fields are key-value pairs returned by the server as a
// part of the token retrieval response.
func (t *Token) Extra(key string) interface{} {
if raw, ok := t.raw.(map[string]interface{}); ok {
return raw[key]
}
vals, ok := t.raw.(url.Values)
if !ok {
return nil
}
v := vals.Get(key)
switch s := strings.TrimSpace(v); strings.Count(s, ".") {
case 0: // Contains no "."; try to parse as int
if i, err := strconv.ParseInt(s, 10, 64); err == nil {
return i
}
case 1: // Contains a single "."; try to parse as float
if f, err := strconv.ParseFloat(s, 64); err == nil {
return f
}
}
return v
}
// expired reports whether the token is expired.
// t must be non-nil.
func (t *Token) expired() bool {
if t.Expiry.IsZero() {
return false
}
return t.Expiry.Add(-expiryDelta).Before(time.Now())
}
// Valid reports whether t is non-nil, has an AccessToken, and is not expired.
func (t *Token) Valid() bool {
return t != nil && t.AccessToken != "" && !t.expired()
}
// tokenFromInternal maps an *internal.Token struct into
// a *Token struct.
func tokenFromInternal(t *internal.Token) *Token {
if t == nil {
return nil
}
return &Token{
AccessToken: t.AccessToken,
TokenType: t.TokenType,
RefreshToken: t.RefreshToken,
Expiry: t.Expiry,
raw: t.Raw,
}
}
// retrieveToken takes a *Config and uses that to retrieve an *internal.Token.
// This token is then mapped from *internal.Token into an *oauth2.Token which is returned along
// with an error..
func retrieveToken(ctx context.Context, c *Config, v url.Values) (*Token, error) {
tk, err := internal.RetrieveToken(ctx, c.ClientID, c.ClientSecret, c.Endpoint.TokenURL, v)
if err != nil {
return nil, err
}
return tokenFromInternal(tk), nil
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package oauth2
import (
"errors"
"io"
"net/http"
"sync"
)
// Transport is an http.RoundTripper that makes OAuth 2.0 HTTP requests,
// wrapping a base RoundTripper and adding an Authorization header
// with a token from the supplied Sources.
//
// Transport is a low-level mechanism. Most code will use the
// higher-level Config.Client method instead.
type Transport struct {
// Source supplies the token to add to outgoing requests'
// Authorization headers.
Source TokenSource
// Base is the base RoundTripper used to make HTTP requests.
// If nil, http.DefaultTransport is used.
Base http.RoundTripper
mu sync.Mutex // guards modReq
modReq map[*http.Request]*http.Request // original -> modified
}
// RoundTrip authorizes and authenticates the request with an
// access token. If no token exists or token is expired,
// tries to refresh/fetch a new token.
func (t *Transport) RoundTrip(req *http.Request) (*http.Response, error) {
if t.Source == nil {
return nil, errors.New("oauth2: Transport's Source is nil")
}
token, err := t.Source.Token()
if err != nil {
return nil, err
}
req2 := cloneRequest(req) // per RoundTripper contract
token.SetAuthHeader(req2)
t.setModReq(req, req2)
res, err := t.base().RoundTrip(req2)
if err != nil {
t.setModReq(req, nil)
return nil, err
}
res.Body = &onEOFReader{
rc: res.Body,
fn: func() { t.setModReq(req, nil) },
}
return res, nil
}
// CancelRequest cancels an in-flight request by closing its connection.
func (t *Transport) CancelRequest(req *http.Request) {
type canceler interface {
CancelRequest(*http.Request)
}
if cr, ok := t.base().(canceler); ok {
t.mu.Lock()
modReq := t.modReq[req]
delete(t.modReq, req)
t.mu.Unlock()
cr.CancelRequest(modReq)
}
}
func (t *Transport) base() http.RoundTripper {
if t.Base != nil {
return t.Base
}
return http.DefaultTransport
}
func (t *Transport) setModReq(orig, mod *http.Request) {
t.mu.Lock()
defer t.mu.Unlock()
if t.modReq == nil {
t.modReq = make(map[*http.Request]*http.Request)
}
if mod == nil {
delete(t.modReq, orig)
} else {
t.modReq[orig] = mod
}
}
// cloneRequest returns a clone of the provided *http.Request.
// The clone is a shallow copy of the struct and its Header map.
func cloneRequest(r *http.Request) *http.Request {
// shallow copy of the struct
r2 := new(http.Request)
*r2 = *r
// deep copy of the Header
r2.Header = make(http.Header, len(r.Header))
for k, s := range r.Header {
r2.Header[k] = append([]string(nil), s...)
}
return r2
}
type onEOFReader struct {
rc io.ReadCloser
fn func()
}
func (r *onEOFReader) Read(p []byte) (n int, err error) {
n, err = r.rc.Read(p)
if err == io.EOF {
r.runFunc()
}
return
}
func (r *onEOFReader) Close() error {
err := r.rc.Close()
r.runFunc()
return err
}
func (r *onEOFReader) runFunc() {
if fn := r.fn; fn != nil {
fn()
r.fn = nil
}
}

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Copyright (c) 2011 Google Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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vendor/google.golang.org/api/dns/v1/dns-api.json generated vendored Normal file
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{
"kind": "discovery#restDescription",
"etag": "\"jQLIOHBVnDZie4rQHGH1WJF-INE/ctEt-71wWAltEdgLnIcGLfJZeFE\"",
"discoveryVersion": "v1",
"id": "dns:v1",
"name": "dns",
"version": "v1",
"revision": "20160413",
"title": "Google Cloud DNS API",
"description": "Configures and serves authoritative DNS records.",
"ownerDomain": "google.com",
"ownerName": "Google",
"icons": {
"x16": "http://www.google.com/images/icons/product/search-16.gif",
"x32": "http://www.google.com/images/icons/product/search-32.gif"
},
"documentationLink": "https://developers.google.com/cloud-dns",
"protocol": "rest",
"baseUrl": "https://www.googleapis.com/dns/v1/projects/",
"basePath": "/dns/v1/projects/",
"rootUrl": "https://www.googleapis.com/",
"servicePath": "dns/v1/projects/",
"batchPath": "batch",
"parameters": {
"alt": {
"type": "string",
"description": "Data format for the response.",
"default": "json",
"enum": [
"json"
],
"enumDescriptions": [
"Responses with Content-Type of application/json"
],
"location": "query"
},
"fields": {
"type": "string",
"description": "Selector specifying which fields to include in a partial response.",
"location": "query"
},
"key": {
"type": "string",
"description": "API key. Your API key identifies your project and provides you with API access, quota, and reports. Required unless you provide an OAuth 2.0 token.",
"location": "query"
},
"oauth_token": {
"type": "string",
"description": "OAuth 2.0 token for the current user.",
"location": "query"
},
"prettyPrint": {
"type": "boolean",
"description": "Returns response with indentations and line breaks.",
"default": "true",
"location": "query"
},
"quotaUser": {
"type": "string",
"description": "Available to use for quota purposes for server-side applications. Can be any arbitrary string assigned to a user, but should not exceed 40 characters. Overrides userIp if both are provided.",
"location": "query"
},
"userIp": {
"type": "string",
"description": "IP address of the site where the request originates. Use this if you want to enforce per-user limits.",
"location": "query"
}
},
"auth": {
"oauth2": {
"scopes": {
"https://www.googleapis.com/auth/cloud-platform": {
"description": "View and manage your data across Google Cloud Platform services"
},
"https://www.googleapis.com/auth/cloud-platform.read-only": {
"description": "View your data across Google Cloud Platform services"
},
"https://www.googleapis.com/auth/ndev.clouddns.readonly": {
"description": "View your DNS records hosted by Google Cloud DNS"
},
"https://www.googleapis.com/auth/ndev.clouddns.readwrite": {
"description": "View and manage your DNS records hosted by Google Cloud DNS"
}
}
}
},
"schemas": {
"Change": {
"id": "Change",
"type": "object",
"description": "An atomic update to a collection of ResourceRecordSets.",
"properties": {
"additions": {
"type": "array",
"description": "Which ResourceRecordSets to add?",
"items": {
"$ref": "ResourceRecordSet"
}
},
"deletions": {
"type": "array",
"description": "Which ResourceRecordSets to remove? Must match existing data exactly.",
"items": {
"$ref": "ResourceRecordSet"
}
},
"id": {
"type": "string",
"description": "Unique identifier for the resource; defined by the server (output only)."
},
"kind": {
"type": "string",
"description": "Identifies what kind of resource this is. Value: the fixed string \"dns#change\".",
"default": "dns#change"
},
"startTime": {
"type": "string",
"description": "The time that this operation was started by the server (output only). This is in RFC3339 text format."
},
"status": {
"type": "string",
"description": "Status of the operation (output only).",
"enum": [
"done",
"pending"
],
"enumDescriptions": [
"",
""
]
}
}
},
"ChangesListResponse": {
"id": "ChangesListResponse",
"type": "object",
"description": "The response to a request to enumerate Changes to a ResourceRecordSets collection.",
"properties": {
"changes": {
"type": "array",
"description": "The requested changes.",
"items": {
"$ref": "Change"
}
},
"kind": {
"type": "string",
"description": "Type of resource.",
"default": "dns#changesListResponse"
},
"nextPageToken": {
"type": "string",
"description": "The presence of this field indicates that there exist more results following your last page of results in pagination order. To fetch them, make another list request using this value as your pagination token.\n\nIn this way you can retrieve the complete contents of even very large collections one page at a time. However, if the contents of the collection change between the first and last paginated list request, the set of all elements returned will be an inconsistent view of the collection. There is no way to retrieve a \"snapshot\" of collections larger than the maximum page size."
}
}
},
"ManagedZone": {
"id": "ManagedZone",
"type": "object",
"description": "A zone is a subtree of the DNS namespace under one administrative responsibility. A ManagedZone is a resource that represents a DNS zone hosted by the Cloud DNS service.",
"properties": {
"creationTime": {
"type": "string",
"description": "The time that this resource was created on the server. This is in RFC3339 text format. Output only."
},
"description": {
"type": "string",
"description": "A mutable string of at most 1024 characters associated with this resource for the user's convenience. Has no effect on the managed zone's function."
},
"dnsName": {
"type": "string",
"description": "The DNS name of this managed zone, for instance \"example.com.\"."
},
"id": {
"type": "string",
"description": "Unique identifier for the resource; defined by the server (output only)",
"format": "uint64"
},
"kind": {
"type": "string",
"description": "Identifies what kind of resource this is. Value: the fixed string \"dns#managedZone\".",
"default": "dns#managedZone"
},
"name": {
"type": "string",
"description": "User assigned name for this resource. Must be unique within the project. The name must be 1-32 characters long, must begin with a letter, end with a letter or digit, and only contain lowercase letters, digits or dashes."
},
"nameServerSet": {
"type": "string",
"description": "Optionally specifies the NameServerSet for this ManagedZone. A NameServerSet is a set of DNS name servers that all host the same ManagedZones. Most users will leave this field unset."
},
"nameServers": {
"type": "array",
"description": "Delegate your managed_zone to these virtual name servers; defined by the server (output only)",
"items": {
"type": "string"
}
}
}
},
"ManagedZonesListResponse": {
"id": "ManagedZonesListResponse",
"type": "object",
"properties": {
"kind": {
"type": "string",
"description": "Type of resource.",
"default": "dns#managedZonesListResponse"
},
"managedZones": {
"type": "array",
"description": "The managed zone resources.",
"items": {
"$ref": "ManagedZone"
}
},
"nextPageToken": {
"type": "string",
"description": "The presence of this field indicates that there exist more results following your last page of results in pagination order. To fetch them, make another list request using this value as your page token.\n\nIn this way you can retrieve the complete contents of even very large collections one page at a time. However, if the contents of the collection change between the first and last paginated list request, the set of all elements returned will be an inconsistent view of the collection. There is no way to retrieve a consistent snapshot of a collection larger than the maximum page size."
}
}
},
"Project": {
"id": "Project",
"type": "object",
"description": "A project resource. The project is a top level container for resources including Cloud DNS ManagedZones. Projects can be created only in the APIs console.",
"properties": {
"id": {
"type": "string",
"description": "User assigned unique identifier for the resource (output only)."
},
"kind": {
"type": "string",
"description": "Identifies what kind of resource this is. Value: the fixed string \"dns#project\".",
"default": "dns#project"
},
"number": {
"type": "string",
"description": "Unique numeric identifier for the resource; defined by the server (output only).",
"format": "uint64"
},
"quota": {
"$ref": "Quota",
"description": "Quotas assigned to this project (output only)."
}
}
},
"Quota": {
"id": "Quota",
"type": "object",
"description": "Limits associated with a Project.",
"properties": {
"kind": {
"type": "string",
"description": "Identifies what kind of resource this is. Value: the fixed string \"dns#quota\".",
"default": "dns#quota"
},
"managedZones": {
"type": "integer",
"description": "Maximum allowed number of managed zones in the project.",
"format": "int32"
},
"resourceRecordsPerRrset": {
"type": "integer",
"description": "Maximum allowed number of ResourceRecords per ResourceRecordSet.",
"format": "int32"
},
"rrsetAdditionsPerChange": {
"type": "integer",
"description": "Maximum allowed number of ResourceRecordSets to add per ChangesCreateRequest.",
"format": "int32"
},
"rrsetDeletionsPerChange": {
"type": "integer",
"description": "Maximum allowed number of ResourceRecordSets to delete per ChangesCreateRequest.",
"format": "int32"
},
"rrsetsPerManagedZone": {
"type": "integer",
"description": "Maximum allowed number of ResourceRecordSets per zone in the project.",
"format": "int32"
},
"totalRrdataSizePerChange": {
"type": "integer",
"description": "Maximum allowed size for total rrdata in one ChangesCreateRequest in bytes.",
"format": "int32"
}
}
},
"ResourceRecordSet": {
"id": "ResourceRecordSet",
"type": "object",
"description": "A unit of data that will be returned by the DNS servers.",
"properties": {
"kind": {
"type": "string",
"description": "Identifies what kind of resource this is. Value: the fixed string \"dns#resourceRecordSet\".",
"default": "dns#resourceRecordSet"
},
"name": {
"type": "string",
"description": "For example, www.example.com."
},
"rrdatas": {
"type": "array",
"description": "As defined in RFC 1035 (section 5) and RFC 1034 (section 3.6.1).",
"items": {
"type": "string"
}
},
"ttl": {
"type": "integer",
"description": "Number of seconds that this ResourceRecordSet can be cached by resolvers.",
"format": "int32"
},
"type": {
"type": "string",
"description": "The identifier of a supported record type, for example, A, AAAA, MX, TXT, and so on."
}
}
},
"ResourceRecordSetsListResponse": {
"id": "ResourceRecordSetsListResponse",
"type": "object",
"properties": {
"kind": {
"type": "string",
"description": "Type of resource.",
"default": "dns#resourceRecordSetsListResponse"
},
"nextPageToken": {
"type": "string",
"description": "The presence of this field indicates that there exist more results following your last page of results in pagination order. To fetch them, make another list request using this value as your pagination token.\n\nIn this way you can retrieve the complete contents of even very large collections one page at a time. However, if the contents of the collection change between the first and last paginated list request, the set of all elements returned will be an inconsistent view of the collection. There is no way to retrieve a consistent snapshot of a collection larger than the maximum page size."
},
"rrsets": {
"type": "array",
"description": "The resource record set resources.",
"items": {
"$ref": "ResourceRecordSet"
}
}
}
}
},
"resources": {
"changes": {
"methods": {
"create": {
"id": "dns.changes.create",
"path": "{project}/managedZones/{managedZone}/changes",
"httpMethod": "POST",
"description": "Atomically update the ResourceRecordSet collection.",
"parameters": {
"managedZone": {
"type": "string",
"description": "Identifies the managed zone addressed by this request. Can be the managed zone name or id.",
"required": true,
"location": "path"
},
"project": {
"type": "string",
"description": "Identifies the project addressed by this request.",
"required": true,
"location": "path"
}
},
"parameterOrder": [
"project",
"managedZone"
],
"request": {
"$ref": "Change"
},
"response": {
"$ref": "Change"
},
"scopes": [
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/ndev.clouddns.readwrite"
]
},
"get": {
"id": "dns.changes.get",
"path": "{project}/managedZones/{managedZone}/changes/{changeId}",
"httpMethod": "GET",
"description": "Fetch the representation of an existing Change.",
"parameters": {
"changeId": {
"type": "string",
"description": "The identifier of the requested change, from a previous ResourceRecordSetsChangeResponse.",
"required": true,
"location": "path"
},
"managedZone": {
"type": "string",
"description": "Identifies the managed zone addressed by this request. Can be the managed zone name or id.",
"required": true,
"location": "path"
},
"project": {
"type": "string",
"description": "Identifies the project addressed by this request.",
"required": true,
"location": "path"
}
},
"parameterOrder": [
"project",
"managedZone",
"changeId"
],
"response": {
"$ref": "Change"
},
"scopes": [
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/cloud-platform.read-only",
"https://www.googleapis.com/auth/ndev.clouddns.readonly",
"https://www.googleapis.com/auth/ndev.clouddns.readwrite"
]
},
"list": {
"id": "dns.changes.list",
"path": "{project}/managedZones/{managedZone}/changes",
"httpMethod": "GET",
"description": "Enumerate Changes to a ResourceRecordSet collection.",
"parameters": {
"managedZone": {
"type": "string",
"description": "Identifies the managed zone addressed by this request. Can be the managed zone name or id.",
"required": true,
"location": "path"
},
"maxResults": {
"type": "integer",
"description": "Optional. Maximum number of results to be returned. If unspecified, the server will decide how many results to return.",
"format": "int32",
"location": "query"
},
"pageToken": {
"type": "string",
"description": "Optional. A tag returned by a previous list request that was truncated. Use this parameter to continue a previous list request.",
"location": "query"
},
"project": {
"type": "string",
"description": "Identifies the project addressed by this request.",
"required": true,
"location": "path"
},
"sortBy": {
"type": "string",
"description": "Sorting criterion. The only supported value is change sequence.",
"default": "changeSequence",
"enum": [
"changeSequence"
],
"enumDescriptions": [
""
],
"location": "query"
},
"sortOrder": {
"type": "string",
"description": "Sorting order direction: 'ascending' or 'descending'.",
"location": "query"
}
},
"parameterOrder": [
"project",
"managedZone"
],
"response": {
"$ref": "ChangesListResponse"
},
"scopes": [
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/cloud-platform.read-only",
"https://www.googleapis.com/auth/ndev.clouddns.readonly",
"https://www.googleapis.com/auth/ndev.clouddns.readwrite"
]
}
}
},
"managedZones": {
"methods": {
"create": {
"id": "dns.managedZones.create",
"path": "{project}/managedZones",
"httpMethod": "POST",
"description": "Create a new ManagedZone.",
"parameters": {
"project": {
"type": "string",
"description": "Identifies the project addressed by this request.",
"required": true,
"location": "path"
}
},
"parameterOrder": [
"project"
],
"request": {
"$ref": "ManagedZone"
},
"response": {
"$ref": "ManagedZone"
},
"scopes": [
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/ndev.clouddns.readwrite"
]
},
"delete": {
"id": "dns.managedZones.delete",
"path": "{project}/managedZones/{managedZone}",
"httpMethod": "DELETE",
"description": "Delete a previously created ManagedZone.",
"parameters": {
"managedZone": {
"type": "string",
"description": "Identifies the managed zone addressed by this request. Can be the managed zone name or id.",
"required": true,
"location": "path"
},
"project": {
"type": "string",
"description": "Identifies the project addressed by this request.",
"required": true,
"location": "path"
}
},
"parameterOrder": [
"project",
"managedZone"
],
"scopes": [
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/ndev.clouddns.readwrite"
]
},
"get": {
"id": "dns.managedZones.get",
"path": "{project}/managedZones/{managedZone}",
"httpMethod": "GET",
"description": "Fetch the representation of an existing ManagedZone.",
"parameters": {
"managedZone": {
"type": "string",
"description": "Identifies the managed zone addressed by this request. Can be the managed zone name or id.",
"required": true,
"location": "path"
},
"project": {
"type": "string",
"description": "Identifies the project addressed by this request.",
"required": true,
"location": "path"
}
},
"parameterOrder": [
"project",
"managedZone"
],
"response": {
"$ref": "ManagedZone"
},
"scopes": [
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/cloud-platform.read-only",
"https://www.googleapis.com/auth/ndev.clouddns.readonly",
"https://www.googleapis.com/auth/ndev.clouddns.readwrite"
]
},
"list": {
"id": "dns.managedZones.list",
"path": "{project}/managedZones",
"httpMethod": "GET",
"description": "Enumerate ManagedZones that have been created but not yet deleted.",
"parameters": {
"dnsName": {
"type": "string",
"description": "Restricts the list to return only zones with this domain name.",
"location": "query"
},
"maxResults": {
"type": "integer",
"description": "Optional. Maximum number of results to be returned. If unspecified, the server will decide how many results to return.",
"format": "int32",
"location": "query"
},
"pageToken": {
"type": "string",
"description": "Optional. A tag returned by a previous list request that was truncated. Use this parameter to continue a previous list request.",
"location": "query"
},
"project": {
"type": "string",
"description": "Identifies the project addressed by this request.",
"required": true,
"location": "path"
}
},
"parameterOrder": [
"project"
],
"response": {
"$ref": "ManagedZonesListResponse"
},
"scopes": [
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/cloud-platform.read-only",
"https://www.googleapis.com/auth/ndev.clouddns.readonly",
"https://www.googleapis.com/auth/ndev.clouddns.readwrite"
]
}
}
},
"projects": {
"methods": {
"get": {
"id": "dns.projects.get",
"path": "{project}",
"httpMethod": "GET",
"description": "Fetch the representation of an existing Project.",
"parameters": {
"project": {
"type": "string",
"description": "Identifies the project addressed by this request.",
"required": true,
"location": "path"
}
},
"parameterOrder": [
"project"
],
"response": {
"$ref": "Project"
},
"scopes": [
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/cloud-platform.read-only",
"https://www.googleapis.com/auth/ndev.clouddns.readonly",
"https://www.googleapis.com/auth/ndev.clouddns.readwrite"
]
}
}
},
"resourceRecordSets": {
"methods": {
"list": {
"id": "dns.resourceRecordSets.list",
"path": "{project}/managedZones/{managedZone}/rrsets",
"httpMethod": "GET",
"description": "Enumerate ResourceRecordSets that have been created but not yet deleted.",
"parameters": {
"managedZone": {
"type": "string",
"description": "Identifies the managed zone addressed by this request. Can be the managed zone name or id.",
"required": true,
"location": "path"
},
"maxResults": {
"type": "integer",
"description": "Optional. Maximum number of results to be returned. If unspecified, the server will decide how many results to return.",
"format": "int32",
"location": "query"
},
"name": {
"type": "string",
"description": "Restricts the list to return only records with this fully qualified domain name.",
"location": "query"
},
"pageToken": {
"type": "string",
"description": "Optional. A tag returned by a previous list request that was truncated. Use this parameter to continue a previous list request.",
"location": "query"
},
"project": {
"type": "string",
"description": "Identifies the project addressed by this request.",
"required": true,
"location": "path"
},
"type": {
"type": "string",
"description": "Restricts the list to return only records of this type. If present, the \"name\" parameter must also be present.",
"location": "query"
}
},
"parameterOrder": [
"project",
"managedZone"
],
"response": {
"$ref": "ResourceRecordSetsListResponse"
},
"scopes": [
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/cloud-platform.read-only",
"https://www.googleapis.com/auth/ndev.clouddns.readonly",
"https://www.googleapis.com/auth/ndev.clouddns.readwrite"
]
}
}
}
}
}

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46
vendor/google.golang.org/api/gensupport/backoff.go generated vendored Normal file
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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gensupport
import (
"math/rand"
"time"
)
type BackoffStrategy interface {
// Pause returns the duration of the next pause and true if the operation should be
// retried, or false if no further retries should be attempted.
Pause() (time.Duration, bool)
// Reset restores the strategy to its initial state.
Reset()
}
// ExponentialBackoff performs exponential backoff as per https://en.wikipedia.org/wiki/Exponential_backoff.
// The initial pause time is given by Base.
// Once the total pause time exceeds Max, Pause will indicate no further retries.
type ExponentialBackoff struct {
Base time.Duration
Max time.Duration
total time.Duration
n uint
}
func (eb *ExponentialBackoff) Pause() (time.Duration, bool) {
if eb.total > eb.Max {
return 0, false
}
// The next pause is selected from randomly from [0, 2^n * Base).
d := time.Duration(rand.Int63n((1 << eb.n) * int64(eb.Base)))
eb.total += d
eb.n++
return d, true
}
func (eb *ExponentialBackoff) Reset() {
eb.n = 0
eb.total = 0
}

77
vendor/google.golang.org/api/gensupport/buffer.go generated vendored Normal file
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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gensupport
import (
"bytes"
"io"
"google.golang.org/api/googleapi"
)
// MediaBuffer buffers data from an io.Reader to support uploading media in retryable chunks.
type MediaBuffer struct {
media io.Reader
chunk []byte // The current chunk which is pending upload. The capacity is the chunk size.
err error // Any error generated when populating chunk by reading media.
// The absolute position of chunk in the underlying media.
off int64
}
func NewMediaBuffer(media io.Reader, chunkSize int) *MediaBuffer {
return &MediaBuffer{media: media, chunk: make([]byte, 0, chunkSize)}
}
// Chunk returns the current buffered chunk, the offset in the underlying media
// from which the chunk is drawn, and the size of the chunk.
// Successive calls to Chunk return the same chunk between calls to Next.
func (mb *MediaBuffer) Chunk() (chunk io.Reader, off int64, size int, err error) {
// There may already be data in chunk if Next has not been called since the previous call to Chunk.
if mb.err == nil && len(mb.chunk) == 0 {
mb.err = mb.loadChunk()
}
return bytes.NewReader(mb.chunk), mb.off, len(mb.chunk), mb.err
}
// loadChunk will read from media into chunk, up to the capacity of chunk.
func (mb *MediaBuffer) loadChunk() error {
bufSize := cap(mb.chunk)
mb.chunk = mb.chunk[:bufSize]
read := 0
var err error
for err == nil && read < bufSize {
var n int
n, err = mb.media.Read(mb.chunk[read:])
read += n
}
mb.chunk = mb.chunk[:read]
return err
}
// Next advances to the next chunk, which will be returned by the next call to Chunk.
// Calls to Next without a corresponding prior call to Chunk will have no effect.
func (mb *MediaBuffer) Next() {
mb.off += int64(len(mb.chunk))
mb.chunk = mb.chunk[0:0]
}
type readerTyper struct {
io.Reader
googleapi.ContentTyper
}
// ReaderAtToReader adapts a ReaderAt to be used as a Reader.
// If ra implements googleapi.ContentTyper, then the returned reader
// will also implement googleapi.ContentTyper, delegating to ra.
func ReaderAtToReader(ra io.ReaderAt, size int64) io.Reader {
r := io.NewSectionReader(ra, 0, size)
if typer, ok := ra.(googleapi.ContentTyper); ok {
return readerTyper{r, typer}
}
return r
}

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vendor/google.golang.org/api/gensupport/doc.go generated vendored Normal file
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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package gensupport is an internal implementation detail used by code
// generated by the google-api-go-generator tool.
//
// This package may be modified at any time without regard for backwards
// compatibility. It should not be used directly by API users.
package gensupport

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gensupport
import (
"encoding/json"
"fmt"
"reflect"
"strings"
)
// MarshalJSON returns a JSON encoding of schema containing only selected fields.
// A field is selected if:
// * it has a non-empty value, or
// * its field name is present in forceSendFields, and
// * it is not a nil pointer or nil interface.
// The JSON key for each selected field is taken from the field's json: struct tag.
func MarshalJSON(schema interface{}, forceSendFields []string) ([]byte, error) {
if len(forceSendFields) == 0 {
return json.Marshal(schema)
}
mustInclude := make(map[string]struct{})
for _, f := range forceSendFields {
mustInclude[f] = struct{}{}
}
dataMap, err := schemaToMap(schema, mustInclude)
if err != nil {
return nil, err
}
return json.Marshal(dataMap)
}
func schemaToMap(schema interface{}, mustInclude map[string]struct{}) (map[string]interface{}, error) {
m := make(map[string]interface{})
s := reflect.ValueOf(schema)
st := s.Type()
for i := 0; i < s.NumField(); i++ {
jsonTag := st.Field(i).Tag.Get("json")
if jsonTag == "" {
continue
}
tag, err := parseJSONTag(jsonTag)
if err != nil {
return nil, err
}
if tag.ignore {
continue
}
v := s.Field(i)
f := st.Field(i)
if !includeField(v, f, mustInclude) {
continue
}
// nil maps are treated as empty maps.
if f.Type.Kind() == reflect.Map && v.IsNil() {
m[tag.apiName] = map[string]string{}
continue
}
// nil slices are treated as empty slices.
if f.Type.Kind() == reflect.Slice && v.IsNil() {
m[tag.apiName] = []bool{}
continue
}
if tag.stringFormat {
m[tag.apiName] = formatAsString(v, f.Type.Kind())
} else {
m[tag.apiName] = v.Interface()
}
}
return m, nil
}
// formatAsString returns a string representation of v, dereferencing it first if possible.
func formatAsString(v reflect.Value, kind reflect.Kind) string {
if kind == reflect.Ptr && !v.IsNil() {
v = v.Elem()
}
return fmt.Sprintf("%v", v.Interface())
}
// jsonTag represents a restricted version of the struct tag format used by encoding/json.
// It is used to describe the JSON encoding of fields in a Schema struct.
type jsonTag struct {
apiName string
stringFormat bool
ignore bool
}
// parseJSONTag parses a restricted version of the struct tag format used by encoding/json.
// The format of the tag must match that generated by the Schema.writeSchemaStruct method
// in the api generator.
func parseJSONTag(val string) (jsonTag, error) {
if val == "-" {
return jsonTag{ignore: true}, nil
}
var tag jsonTag
i := strings.Index(val, ",")
if i == -1 || val[:i] == "" {
return tag, fmt.Errorf("malformed json tag: %s", val)
}
tag = jsonTag{
apiName: val[:i],
}
switch val[i+1:] {
case "omitempty":
case "omitempty,string":
tag.stringFormat = true
default:
return tag, fmt.Errorf("malformed json tag: %s", val)
}
return tag, nil
}
// Reports whether the struct field "f" with value "v" should be included in JSON output.
func includeField(v reflect.Value, f reflect.StructField, mustInclude map[string]struct{}) bool {
// The regular JSON encoding of a nil pointer is "null", which means "delete this field".
// Therefore, we could enable field deletion by honoring pointer fields' presence in the mustInclude set.
// However, many fields are not pointers, so there would be no way to delete these fields.
// Rather than partially supporting field deletion, we ignore mustInclude for nil pointer fields.
// Deletion will be handled by a separate mechanism.
if f.Type.Kind() == reflect.Ptr && v.IsNil() {
return false
}
// The "any" type is represented as an interface{}. If this interface
// is nil, there is no reasonable representation to send. We ignore
// these fields, for the same reasons as given above for pointers.
if f.Type.Kind() == reflect.Interface && v.IsNil() {
return false
}
_, ok := mustInclude[f.Name]
return ok || !isEmptyValue(v)
}
// isEmptyValue reports whether v is the empty value for its type. This
// implementation is based on that of the encoding/json package, but its
// correctness does not depend on it being identical. What's important is that
// this function return false in situations where v should not be sent as part
// of a PATCH operation.
func isEmptyValue(v reflect.Value) bool {
switch v.Kind() {
case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
return v.Len() == 0
case reflect.Bool:
return !v.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return v.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return v.Uint() == 0
case reflect.Float32, reflect.Float64:
return v.Float() == 0
case reflect.Interface, reflect.Ptr:
return v.IsNil()
}
return false
}

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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gensupport
import (
"fmt"
"io"
"io/ioutil"
"mime/multipart"
"net/http"
"net/textproto"
"google.golang.org/api/googleapi"
)
const sniffBuffSize = 512
func newContentSniffer(r io.Reader) *contentSniffer {
return &contentSniffer{r: r}
}
// contentSniffer wraps a Reader, and reports the content type determined by sniffing up to 512 bytes from the Reader.
type contentSniffer struct {
r io.Reader
start []byte // buffer for the sniffed bytes.
err error // set to any error encountered while reading bytes to be sniffed.
ctype string // set on first sniff.
sniffed bool // set to true on first sniff.
}
func (cs *contentSniffer) Read(p []byte) (n int, err error) {
// Ensure that the content type is sniffed before any data is consumed from Reader.
_, _ = cs.ContentType()
if len(cs.start) > 0 {
n := copy(p, cs.start)
cs.start = cs.start[n:]
return n, nil
}
// We may have read some bytes into start while sniffing, even if the read ended in an error.
// We should first return those bytes, then the error.
if cs.err != nil {
return 0, cs.err
}
// Now we have handled all bytes that were buffered while sniffing. Now just delegate to the underlying reader.
return cs.r.Read(p)
}
// ContentType returns the sniffed content type, and whether the content type was succesfully sniffed.
func (cs *contentSniffer) ContentType() (string, bool) {
if cs.sniffed {
return cs.ctype, cs.ctype != ""
}
cs.sniffed = true
// If ReadAll hits EOF, it returns err==nil.
cs.start, cs.err = ioutil.ReadAll(io.LimitReader(cs.r, sniffBuffSize))
// Don't try to detect the content type based on possibly incomplete data.
if cs.err != nil {
return "", false
}
cs.ctype = http.DetectContentType(cs.start)
return cs.ctype, true
}
// DetermineContentType determines the content type of the supplied reader.
// If the content type is already known, it can be specified via ctype.
// Otherwise, the content of media will be sniffed to determine the content type.
// If media implements googleapi.ContentTyper (deprecated), this will be used
// instead of sniffing the content.
// After calling DetectContentType the caller must not perform further reads on
// media, but rather read from the Reader that is returned.
func DetermineContentType(media io.Reader, ctype string) (io.Reader, string) {
// Note: callers could avoid calling DetectContentType if ctype != "",
// but doing the check inside this function reduces the amount of
// generated code.
if ctype != "" {
return media, ctype
}
// For backwards compatability, allow clients to set content
// type by providing a ContentTyper for media.
if typer, ok := media.(googleapi.ContentTyper); ok {
return media, typer.ContentType()
}
sniffer := newContentSniffer(media)
if ctype, ok := sniffer.ContentType(); ok {
return sniffer, ctype
}
// If content type could not be sniffed, reads from sniffer will eventually fail with an error.
return sniffer, ""
}
type typeReader struct {
io.Reader
typ string
}
// multipartReader combines the contents of multiple readers to creat a multipart/related HTTP body.
// Close must be called if reads from the multipartReader are abandoned before reaching EOF.
type multipartReader struct {
pr *io.PipeReader
pipeOpen bool
ctype string
}
func newMultipartReader(parts []typeReader) *multipartReader {
mp := &multipartReader{pipeOpen: true}
var pw *io.PipeWriter
mp.pr, pw = io.Pipe()
mpw := multipart.NewWriter(pw)
mp.ctype = "multipart/related; boundary=" + mpw.Boundary()
go func() {
for _, part := range parts {
w, err := mpw.CreatePart(typeHeader(part.typ))
if err != nil {
mpw.Close()
pw.CloseWithError(fmt.Errorf("googleapi: CreatePart failed: %v", err))
return
}
_, err = io.Copy(w, part.Reader)
if err != nil {
mpw.Close()
pw.CloseWithError(fmt.Errorf("googleapi: Copy failed: %v", err))
return
}
}
mpw.Close()
pw.Close()
}()
return mp
}
func (mp *multipartReader) Read(data []byte) (n int, err error) {
return mp.pr.Read(data)
}
func (mp *multipartReader) Close() error {
if !mp.pipeOpen {
return nil
}
mp.pipeOpen = false
return mp.pr.Close()
}
// CombineBodyMedia combines a json body with media content to create a multipart/related HTTP body.
// It returns a ReadCloser containing the combined body, and the overall "multipart/related" content type, with random boundary.
//
// The caller must call Close on the returned ReadCloser if reads are abandoned before reaching EOF.
func CombineBodyMedia(body io.Reader, bodyContentType string, media io.Reader, mediaContentType string) (io.ReadCloser, string) {
mp := newMultipartReader([]typeReader{
{body, bodyContentType},
{media, mediaContentType},
})
return mp, mp.ctype
}
func typeHeader(contentType string) textproto.MIMEHeader {
h := make(textproto.MIMEHeader)
if contentType != "" {
h.Set("Content-Type", contentType)
}
return h
}
// PrepareUpload determines whether the data in the supplied reader should be
// uploaded in a single request, or in sequential chunks.
// chunkSize is the size of the chunk that media should be split into.
// If chunkSize is non-zero and the contents of media do not fit in a single
// chunk (or there is an error reading media), then media will be returned as a
// MediaBuffer. Otherwise, media will be returned as a Reader.
//
// After PrepareUpload has been called, media should no longer be used: the
// media content should be accessed via one of the return values.
func PrepareUpload(media io.Reader, chunkSize int) (io.Reader, *MediaBuffer) {
if chunkSize == 0 { // do not chunk
return media, nil
}
mb := NewMediaBuffer(media, chunkSize)
rdr, _, _, err := mb.Chunk()
if err == io.EOF { // we can upload this in a single request
return rdr, nil
}
// err might be a non-EOF error. If it is, the next call to mb.Chunk will
// return the same error. Returning a MediaBuffer ensures that this error
// will be handled at some point.
return nil, mb
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gensupport
import (
"net/url"
"google.golang.org/api/googleapi"
)
// URLParams is a simplified replacement for url.Values
// that safely builds up URL parameters for encoding.
type URLParams map[string][]string
// Get returns the first value for the given key, or "".
func (u URLParams) Get(key string) string {
vs := u[key]
if len(vs) == 0 {
return ""
}
return vs[0]
}
// Set sets the key to value.
// It replaces any existing values.
func (u URLParams) Set(key, value string) {
u[key] = []string{value}
}
// SetMulti sets the key to an array of values.
// It replaces any existing values.
// Note that values must not be modified after calling SetMulti
// so the caller is responsible for making a copy if necessary.
func (u URLParams) SetMulti(key string, values []string) {
u[key] = values
}
// Encode encodes the values into ``URL encoded'' form
// ("bar=baz&foo=quux") sorted by key.
func (u URLParams) Encode() string {
return url.Values(u).Encode()
}
func SetOptions(u URLParams, opts ...googleapi.CallOption) {
for _, o := range opts {
u.Set(o.Get())
}
}

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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gensupport
import (
"fmt"
"io"
"net/http"
"sync"
"time"
"golang.org/x/net/context"
)
const (
// statusResumeIncomplete is the code returned by the Google uploader
// when the transfer is not yet complete.
statusResumeIncomplete = 308
// statusTooManyRequests is returned by the storage API if the
// per-project limits have been temporarily exceeded. The request
// should be retried.
// https://cloud.google.com/storage/docs/json_api/v1/status-codes#standardcodes
statusTooManyRequests = 429
)
// ResumableUpload is used by the generated APIs to provide resumable uploads.
// It is not used by developers directly.
type ResumableUpload struct {
Client *http.Client
// URI is the resumable resource destination provided by the server after specifying "&uploadType=resumable".
URI string
UserAgent string // User-Agent for header of the request
// Media is the object being uploaded.
Media *MediaBuffer
// MediaType defines the media type, e.g. "image/jpeg".
MediaType string
mu sync.Mutex // guards progress
progress int64 // number of bytes uploaded so far
// Callback is an optional function that will be periodically called with the cumulative number of bytes uploaded.
Callback func(int64)
// If not specified, a default exponential backoff strategy will be used.
Backoff BackoffStrategy
}
// Progress returns the number of bytes uploaded at this point.
func (rx *ResumableUpload) Progress() int64 {
rx.mu.Lock()
defer rx.mu.Unlock()
return rx.progress
}
// doUploadRequest performs a single HTTP request to upload data.
// off specifies the offset in rx.Media from which data is drawn.
// size is the number of bytes in data.
// final specifies whether data is the final chunk to be uploaded.
func (rx *ResumableUpload) doUploadRequest(ctx context.Context, data io.Reader, off, size int64, final bool) (*http.Response, error) {
req, err := http.NewRequest("POST", rx.URI, data)
if err != nil {
return nil, err
}
req.ContentLength = size
var contentRange string
if final {
if size == 0 {
contentRange = fmt.Sprintf("bytes */%v", off)
} else {
contentRange = fmt.Sprintf("bytes %v-%v/%v", off, off+size-1, off+size)
}
} else {
contentRange = fmt.Sprintf("bytes %v-%v/*", off, off+size-1)
}
req.Header.Set("Content-Range", contentRange)
req.Header.Set("Content-Type", rx.MediaType)
req.Header.Set("User-Agent", rx.UserAgent)
return SendRequest(ctx, rx.Client, req)
}
// reportProgress calls a user-supplied callback to report upload progress.
// If old==updated, the callback is not called.
func (rx *ResumableUpload) reportProgress(old, updated int64) {
if updated-old == 0 {
return
}
rx.mu.Lock()
rx.progress = updated
rx.mu.Unlock()
if rx.Callback != nil {
rx.Callback(updated)
}
}
// transferChunk performs a single HTTP request to upload a single chunk from rx.Media.
func (rx *ResumableUpload) transferChunk(ctx context.Context) (*http.Response, error) {
chunk, off, size, err := rx.Media.Chunk()
done := err == io.EOF
if !done && err != nil {
return nil, err
}
res, err := rx.doUploadRequest(ctx, chunk, off, int64(size), done)
if err != nil {
return res, err
}
if res.StatusCode == statusResumeIncomplete || res.StatusCode == http.StatusOK {
rx.reportProgress(off, off+int64(size))
}
if res.StatusCode == statusResumeIncomplete {
rx.Media.Next()
}
return res, nil
}
func contextDone(ctx context.Context) bool {
select {
case <-ctx.Done():
return true
default:
return false
}
}
// Upload starts the process of a resumable upload with a cancellable context.
// It retries using the provided back off strategy until cancelled or the
// strategy indicates to stop retrying.
// It is called from the auto-generated API code and is not visible to the user.
// Before sending an HTTP request, Upload calls any registered hook functions,
// and calls the returned functions after the request returns (see send.go).
// rx is private to the auto-generated API code.
// Exactly one of resp or err will be nil. If resp is non-nil, the caller must call resp.Body.Close.
func (rx *ResumableUpload) Upload(ctx context.Context) (resp *http.Response, err error) {
var pause time.Duration
backoff := rx.Backoff
if backoff == nil {
backoff = DefaultBackoffStrategy()
}
for {
// Ensure that we return in the case of cancelled context, even if pause is 0.
if contextDone(ctx) {
return nil, ctx.Err()
}
select {
case <-ctx.Done():
return nil, ctx.Err()
case <-time.After(pause):
}
resp, err = rx.transferChunk(ctx)
var status int
if resp != nil {
status = resp.StatusCode
}
// Check if we should retry the request.
if shouldRetry(status, err) {
var retry bool
pause, retry = backoff.Pause()
if retry {
if resp != nil && resp.Body != nil {
resp.Body.Close()
}
continue
}
}
// If the chunk was uploaded successfully, but there's still
// more to go, upload the next chunk without any delay.
if status == statusResumeIncomplete {
pause = 0
backoff.Reset()
resp.Body.Close()
continue
}
// It's possible for err and resp to both be non-nil here, but we expose a simpler
// contract to our callers: exactly one of resp and err will be non-nil. This means
// that any response body must be closed here before returning a non-nil error.
if err != nil {
if resp != nil && resp.Body != nil {
resp.Body.Close()
}
return nil, err
}
return resp, nil
}
}

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package gensupport
import (
"io"
"net"
"net/http"
"time"
"golang.org/x/net/context"
)
// Retry invokes the given function, retrying it multiple times if the connection failed or
// the HTTP status response indicates the request should be attempted again. ctx may be nil.
func Retry(ctx context.Context, f func() (*http.Response, error), backoff BackoffStrategy) (*http.Response, error) {
for {
resp, err := f()
var status int
if resp != nil {
status = resp.StatusCode
}
// Return if we shouldn't retry.
pause, retry := backoff.Pause()
if !shouldRetry(status, err) || !retry {
return resp, err
}
// Ensure the response body is closed, if any.
if resp != nil && resp.Body != nil {
resp.Body.Close()
}
// Pause, but still listen to ctx.Done if context is not nil.
var done <-chan struct{}
if ctx != nil {
done = ctx.Done()
}
select {
case <-done:
return nil, ctx.Err()
case <-time.After(pause):
}
}
}
// DefaultBackoffStrategy returns a default strategy to use for retrying failed upload requests.
func DefaultBackoffStrategy() BackoffStrategy {
return &ExponentialBackoff{
Base: 250 * time.Millisecond,
Max: 16 * time.Second,
}
}
// shouldRetry returns true if the HTTP response / error indicates that the
// request should be attempted again.
func shouldRetry(status int, err error) bool {
// Retry for 5xx response codes.
if 500 <= status && status < 600 {
return true
}
// Retry on statusTooManyRequests{
if status == statusTooManyRequests {
return true
}
// Retry on unexpected EOFs and temporary network errors.
if err == io.ErrUnexpectedEOF {
return true
}
if err, ok := err.(net.Error); ok {
return err.Temporary()
}
return false
}

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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gensupport
import (
"net/http"
"golang.org/x/net/context"
"golang.org/x/net/context/ctxhttp"
)
// Hook is the type of a function that is called once before each HTTP request
// that is sent by a generated API. It returns a function that is called after
// the request returns.
// Hooks are not called if the context is nil.
type Hook func(ctx context.Context, req *http.Request) func(resp *http.Response)
var hooks []Hook
// RegisterHook registers a Hook to be called before each HTTP request by a
// generated API. Hooks are called in the order they are registered. Each
// hook can return a function; if it is non-nil, it is called after the HTTP
// request returns. These functions are called in the reverse order.
// RegisterHook should not be called concurrently with itself or SendRequest.
func RegisterHook(h Hook) {
hooks = append(hooks, h)
}
// SendRequest sends a single HTTP request using the given client.
// If ctx is non-nil, it calls all hooks, then sends the request with
// ctxhttp.Do, then calls any functions returned by the hooks in reverse order.
func SendRequest(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) {
if ctx == nil {
return client.Do(req)
}
// Call hooks in order of registration, store returned funcs.
post := make([]func(resp *http.Response), len(hooks))
for i, h := range hooks {
fn := h(ctx, req)
post[i] = fn
}
// Send request.
resp, err := ctxhttp.Do(ctx, client, req)
// Call returned funcs in reverse order.
for i := len(post) - 1; i >= 0; i-- {
if fn := post[i]; fn != nil {
fn(resp)
}
}
return resp, err
}

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vendor/google.golang.org/api/googleapi/googleapi.go generated vendored Normal file
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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package googleapi contains the common code shared by all Google API
// libraries.
package googleapi // import "google.golang.org/api/googleapi"
import (
"bytes"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"strings"
"google.golang.org/api/googleapi/internal/uritemplates"
)
// ContentTyper is an interface for Readers which know (or would like
// to override) their Content-Type. If a media body doesn't implement
// ContentTyper, the type is sniffed from the content using
// http.DetectContentType.
type ContentTyper interface {
ContentType() string
}
// A SizeReaderAt is a ReaderAt with a Size method.
// An io.SectionReader implements SizeReaderAt.
type SizeReaderAt interface {
io.ReaderAt
Size() int64
}
// ServerResponse is embedded in each Do response and
// provides the HTTP status code and header sent by the server.
type ServerResponse struct {
// HTTPStatusCode is the server's response status code.
// When using a resource method's Do call, this will always be in the 2xx range.
HTTPStatusCode int
// Header contains the response header fields from the server.
Header http.Header
}
const (
Version = "0.5"
// UserAgent is the header string used to identify this package.
UserAgent = "google-api-go-client/" + Version
// The default chunk size to use for resumable uplods if not specified by the user.
DefaultUploadChunkSize = 8 * 1024 * 1024
// The minimum chunk size that can be used for resumable uploads. All
// user-specified chunk sizes must be multiple of this value.
MinUploadChunkSize = 256 * 1024
)
// Error contains an error response from the server.
type Error struct {
// Code is the HTTP response status code and will always be populated.
Code int `json:"code"`
// Message is the server response message and is only populated when
// explicitly referenced by the JSON server response.
Message string `json:"message"`
// Body is the raw response returned by the server.
// It is often but not always JSON, depending on how the request fails.
Body string
// Header contains the response header fields from the server.
Header http.Header
Errors []ErrorItem
}
// ErrorItem is a detailed error code & message from the Google API frontend.
type ErrorItem struct {
// Reason is the typed error code. For example: "some_example".
Reason string `json:"reason"`
// Message is the human-readable description of the error.
Message string `json:"message"`
}
func (e *Error) Error() string {
if len(e.Errors) == 0 && e.Message == "" {
return fmt.Sprintf("googleapi: got HTTP response code %d with body: %v", e.Code, e.Body)
}
var buf bytes.Buffer
fmt.Fprintf(&buf, "googleapi: Error %d: ", e.Code)
if e.Message != "" {
fmt.Fprintf(&buf, "%s", e.Message)
}
if len(e.Errors) == 0 {
return strings.TrimSpace(buf.String())
}
if len(e.Errors) == 1 && e.Errors[0].Message == e.Message {
fmt.Fprintf(&buf, ", %s", e.Errors[0].Reason)
return buf.String()
}
fmt.Fprintln(&buf, "\nMore details:")
for _, v := range e.Errors {
fmt.Fprintf(&buf, "Reason: %s, Message: %s\n", v.Reason, v.Message)
}
return buf.String()
}
type errorReply struct {
Error *Error `json:"error"`
}
// CheckResponse returns an error (of type *Error) if the response
// status code is not 2xx.
func CheckResponse(res *http.Response) error {
if res.StatusCode >= 200 && res.StatusCode <= 299 {
return nil
}
slurp, err := ioutil.ReadAll(res.Body)
if err == nil {
jerr := new(errorReply)
err = json.Unmarshal(slurp, jerr)
if err == nil && jerr.Error != nil {
if jerr.Error.Code == 0 {
jerr.Error.Code = res.StatusCode
}
jerr.Error.Body = string(slurp)
return jerr.Error
}
}
return &Error{
Code: res.StatusCode,
Body: string(slurp),
Header: res.Header,
}
}
// IsNotModified reports whether err is the result of the
// server replying with http.StatusNotModified.
// Such error values are sometimes returned by "Do" methods
// on calls when If-None-Match is used.
func IsNotModified(err error) bool {
if err == nil {
return false
}
ae, ok := err.(*Error)
return ok && ae.Code == http.StatusNotModified
}
// CheckMediaResponse returns an error (of type *Error) if the response
// status code is not 2xx. Unlike CheckResponse it does not assume the
// body is a JSON error document.
// It is the caller's responsibility to close res.Body.
func CheckMediaResponse(res *http.Response) error {
if res.StatusCode >= 200 && res.StatusCode <= 299 {
return nil
}
slurp, _ := ioutil.ReadAll(io.LimitReader(res.Body, 1<<20))
return &Error{
Code: res.StatusCode,
Body: string(slurp),
}
}
type MarshalStyle bool
var WithDataWrapper = MarshalStyle(true)
var WithoutDataWrapper = MarshalStyle(false)
func (wrap MarshalStyle) JSONReader(v interface{}) (io.Reader, error) {
buf := new(bytes.Buffer)
if wrap {
buf.Write([]byte(`{"data": `))
}
err := json.NewEncoder(buf).Encode(v)
if err != nil {
return nil, err
}
if wrap {
buf.Write([]byte(`}`))
}
return buf, nil
}
// endingWithErrorReader from r until it returns an error. If the
// final error from r is io.EOF and e is non-nil, e is used instead.
type endingWithErrorReader struct {
r io.Reader
e error
}
func (er endingWithErrorReader) Read(p []byte) (n int, err error) {
n, err = er.r.Read(p)
if err == io.EOF && er.e != nil {
err = er.e
}
return
}
// countingWriter counts the number of bytes it receives to write, but
// discards them.
type countingWriter struct {
n *int64
}
func (w countingWriter) Write(p []byte) (int, error) {
*w.n += int64(len(p))
return len(p), nil
}
// ProgressUpdater is a function that is called upon every progress update of a resumable upload.
// This is the only part of a resumable upload (from googleapi) that is usable by the developer.
// The remaining usable pieces of resumable uploads is exposed in each auto-generated API.
type ProgressUpdater func(current, total int64)
type MediaOption interface {
setOptions(o *MediaOptions)
}
type contentTypeOption string
func (ct contentTypeOption) setOptions(o *MediaOptions) {
o.ContentType = string(ct)
if o.ContentType == "" {
o.ForceEmptyContentType = true
}
}
// ContentType returns a MediaOption which sets the Content-Type header for media uploads.
// If ctype is empty, the Content-Type header will be omitted.
func ContentType(ctype string) MediaOption {
return contentTypeOption(ctype)
}
type chunkSizeOption int
func (cs chunkSizeOption) setOptions(o *MediaOptions) {
size := int(cs)
if size%MinUploadChunkSize != 0 {
size += MinUploadChunkSize - (size % MinUploadChunkSize)
}
o.ChunkSize = size
}
// ChunkSize returns a MediaOption which sets the chunk size for media uploads.
// size will be rounded up to the nearest multiple of 256K.
// Media which contains fewer than size bytes will be uploaded in a single request.
// Media which contains size bytes or more will be uploaded in separate chunks.
// If size is zero, media will be uploaded in a single request.
func ChunkSize(size int) MediaOption {
return chunkSizeOption(size)
}
// MediaOptions stores options for customizing media upload. It is not used by developers directly.
type MediaOptions struct {
ContentType string
ForceEmptyContentType bool
ChunkSize int
}
// ProcessMediaOptions stores options from opts in a MediaOptions.
// It is not used by developers directly.
func ProcessMediaOptions(opts []MediaOption) *MediaOptions {
mo := &MediaOptions{ChunkSize: DefaultUploadChunkSize}
for _, o := range opts {
o.setOptions(mo)
}
return mo
}
func ResolveRelative(basestr, relstr string) string {
u, _ := url.Parse(basestr)
rel, _ := url.Parse(relstr)
u = u.ResolveReference(rel)
us := u.String()
us = strings.Replace(us, "%7B", "{", -1)
us = strings.Replace(us, "%7D", "}", -1)
return us
}
// Expand subsitutes any {encoded} strings in the URL passed in using
// the map supplied.
//
// This calls SetOpaque to avoid encoding of the parameters in the URL path.
func Expand(u *url.URL, expansions map[string]string) {
escaped, unescaped, err := uritemplates.Expand(u.Path, expansions)
if err == nil {
u.Path = unescaped
u.RawPath = escaped
}
}
// CloseBody is used to close res.Body.
// Prior to calling Close, it also tries to Read a small amount to see an EOF.
// Not seeing an EOF can prevent HTTP Transports from reusing connections.
func CloseBody(res *http.Response) {
if res == nil || res.Body == nil {
return
}
// Justification for 3 byte reads: two for up to "\r\n" after
// a JSON/XML document, and then 1 to see EOF if we haven't yet.
// TODO(bradfitz): detect Go 1.3+ and skip these reads.
// See https://codereview.appspot.com/58240043
// and https://codereview.appspot.com/49570044
buf := make([]byte, 1)
for i := 0; i < 3; i++ {
_, err := res.Body.Read(buf)
if err != nil {
break
}
}
res.Body.Close()
}
// VariantType returns the type name of the given variant.
// If the map doesn't contain the named key or the value is not a []interface{}, "" is returned.
// This is used to support "variant" APIs that can return one of a number of different types.
func VariantType(t map[string]interface{}) string {
s, _ := t["type"].(string)
return s
}
// ConvertVariant uses the JSON encoder/decoder to fill in the struct 'dst' with the fields found in variant 'v'.
// This is used to support "variant" APIs that can return one of a number of different types.
// It reports whether the conversion was successful.
func ConvertVariant(v map[string]interface{}, dst interface{}) bool {
var buf bytes.Buffer
err := json.NewEncoder(&buf).Encode(v)
if err != nil {
return false
}
return json.Unmarshal(buf.Bytes(), dst) == nil
}
// A Field names a field to be retrieved with a partial response.
// See https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
//
// Partial responses can dramatically reduce the amount of data that must be sent to your application.
// In order to request partial responses, you can specify the full list of fields
// that your application needs by adding the Fields option to your request.
//
// Field strings use camelCase with leading lower-case characters to identify fields within the response.
//
// For example, if your response has a "NextPageToken" and a slice of "Items" with "Id" fields,
// you could request just those fields like this:
//
// svc.Events.List().Fields("nextPageToken", "items/id").Do()
//
// or if you were also interested in each Item's "Updated" field, you can combine them like this:
//
// svc.Events.List().Fields("nextPageToken", "items(id,updated)").Do()
//
// More information about field formatting can be found here:
// https://developers.google.com/+/api/#fields-syntax
//
// Another way to find field names is through the Google API explorer:
// https://developers.google.com/apis-explorer/#p/
type Field string
// CombineFields combines fields into a single string.
func CombineFields(s []Field) string {
r := make([]string, len(s))
for i, v := range s {
r[i] = string(v)
}
return strings.Join(r, ",")
}
// A CallOption is an optional argument to an API call.
// It should be treated as an opaque value by users of Google APIs.
//
// A CallOption is something that configures an API call in a way that is
// not specific to that API; for instance, controlling the quota user for
// an API call is common across many APIs, and is thus a CallOption.
type CallOption interface {
Get() (key, value string)
}
// QuotaUser returns a CallOption that will set the quota user for a call.
// The quota user can be used by server-side applications to control accounting.
// It can be an arbitrary string up to 40 characters, and will override UserIP
// if both are provided.
func QuotaUser(u string) CallOption { return quotaUser(u) }
type quotaUser string
func (q quotaUser) Get() (string, string) { return "quotaUser", string(q) }
// UserIP returns a CallOption that will set the "userIp" parameter of a call.
// This should be the IP address of the originating request.
func UserIP(ip string) CallOption { return userIP(ip) }
type userIP string
func (i userIP) Get() (string, string) { return "userIp", string(i) }
// Trace returns a CallOption that enables diagnostic tracing for a call.
// traceToken is an ID supplied by Google support.
func Trace(traceToken string) CallOption { return traceTok(traceToken) }
type traceTok string
func (t traceTok) Get() (string, string) { return "trace", "token:" + string(t) }
// TODO: Fields too

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Copyright (c) 2013 Joshua Tacoma
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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// Copyright 2013 Joshua Tacoma. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package uritemplates is a level 3 implementation of RFC 6570 (URI
// Template, http://tools.ietf.org/html/rfc6570).
// uritemplates does not support composite values (in Go: slices or maps)
// and so does not qualify as a level 4 implementation.
package uritemplates
import (
"bytes"
"errors"
"regexp"
"strconv"
"strings"
)
var (
unreserved = regexp.MustCompile("[^A-Za-z0-9\\-._~]")
reserved = regexp.MustCompile("[^A-Za-z0-9\\-._~:/?#[\\]@!$&'()*+,;=]")
validname = regexp.MustCompile("^([A-Za-z0-9_\\.]|%[0-9A-Fa-f][0-9A-Fa-f])+$")
hex = []byte("0123456789ABCDEF")
)
func pctEncode(src []byte) []byte {
dst := make([]byte, len(src)*3)
for i, b := range src {
buf := dst[i*3 : i*3+3]
buf[0] = 0x25
buf[1] = hex[b/16]
buf[2] = hex[b%16]
}
return dst
}
// pairWriter is a convenience struct which allows escaped and unescaped
// versions of the template to be written in parallel.
type pairWriter struct {
escaped, unescaped bytes.Buffer
}
// Write writes the provided string directly without any escaping.
func (w *pairWriter) Write(s string) {
w.escaped.WriteString(s)
w.unescaped.WriteString(s)
}
// Escape writes the provided string, escaping the string for the
// escaped output.
func (w *pairWriter) Escape(s string, allowReserved bool) {
w.unescaped.WriteString(s)
if allowReserved {
w.escaped.Write(reserved.ReplaceAllFunc([]byte(s), pctEncode))
} else {
w.escaped.Write(unreserved.ReplaceAllFunc([]byte(s), pctEncode))
}
}
// Escaped returns the escaped string.
func (w *pairWriter) Escaped() string {
return w.escaped.String()
}
// Unescaped returns the unescaped string.
func (w *pairWriter) Unescaped() string {
return w.unescaped.String()
}
// A uriTemplate is a parsed representation of a URI template.
type uriTemplate struct {
raw string
parts []templatePart
}
// parse parses a URI template string into a uriTemplate object.
func parse(rawTemplate string) (*uriTemplate, error) {
split := strings.Split(rawTemplate, "{")
parts := make([]templatePart, len(split)*2-1)
for i, s := range split {
if i == 0 {
if strings.Contains(s, "}") {
return nil, errors.New("unexpected }")
}
parts[i].raw = s
continue
}
subsplit := strings.Split(s, "}")
if len(subsplit) != 2 {
return nil, errors.New("malformed template")
}
expression := subsplit[0]
var err error
parts[i*2-1], err = parseExpression(expression)
if err != nil {
return nil, err
}
parts[i*2].raw = subsplit[1]
}
return &uriTemplate{
raw: rawTemplate,
parts: parts,
}, nil
}
type templatePart struct {
raw string
terms []templateTerm
first string
sep string
named bool
ifemp string
allowReserved bool
}
type templateTerm struct {
name string
explode bool
truncate int
}
func parseExpression(expression string) (result templatePart, err error) {
switch expression[0] {
case '+':
result.sep = ","
result.allowReserved = true
expression = expression[1:]
case '.':
result.first = "."
result.sep = "."
expression = expression[1:]
case '/':
result.first = "/"
result.sep = "/"
expression = expression[1:]
case ';':
result.first = ";"
result.sep = ";"
result.named = true
expression = expression[1:]
case '?':
result.first = "?"
result.sep = "&"
result.named = true
result.ifemp = "="
expression = expression[1:]
case '&':
result.first = "&"
result.sep = "&"
result.named = true
result.ifemp = "="
expression = expression[1:]
case '#':
result.first = "#"
result.sep = ","
result.allowReserved = true
expression = expression[1:]
default:
result.sep = ","
}
rawterms := strings.Split(expression, ",")
result.terms = make([]templateTerm, len(rawterms))
for i, raw := range rawterms {
result.terms[i], err = parseTerm(raw)
if err != nil {
break
}
}
return result, err
}
func parseTerm(term string) (result templateTerm, err error) {
// TODO(djd): Remove "*" suffix parsing once we check that no APIs have
// mistakenly used that attribute.
if strings.HasSuffix(term, "*") {
result.explode = true
term = term[:len(term)-1]
}
split := strings.Split(term, ":")
if len(split) == 1 {
result.name = term
} else if len(split) == 2 {
result.name = split[0]
var parsed int64
parsed, err = strconv.ParseInt(split[1], 10, 0)
result.truncate = int(parsed)
} else {
err = errors.New("multiple colons in same term")
}
if !validname.MatchString(result.name) {
err = errors.New("not a valid name: " + result.name)
}
if result.explode && result.truncate > 0 {
err = errors.New("both explode and prefix modifers on same term")
}
return result, err
}
// Expand expands a URI template with a set of values to produce the
// resultant URI. Two forms of the result are returned: one with all the
// elements escaped, and one with the elements unescaped.
func (t *uriTemplate) Expand(values map[string]string) (escaped, unescaped string) {
var w pairWriter
for _, p := range t.parts {
p.expand(&w, values)
}
return w.Escaped(), w.Unescaped()
}
func (tp *templatePart) expand(w *pairWriter, values map[string]string) {
if len(tp.raw) > 0 {
w.Write(tp.raw)
return
}
var first = true
for _, term := range tp.terms {
value, exists := values[term.name]
if !exists {
continue
}
if first {
w.Write(tp.first)
first = false
} else {
w.Write(tp.sep)
}
tp.expandString(w, term, value)
}
}
func (tp *templatePart) expandName(w *pairWriter, name string, empty bool) {
if tp.named {
w.Write(name)
if empty {
w.Write(tp.ifemp)
} else {
w.Write("=")
}
}
}
func (tp *templatePart) expandString(w *pairWriter, t templateTerm, s string) {
if len(s) > t.truncate && t.truncate > 0 {
s = s[:t.truncate]
}
tp.expandName(w, t.name, len(s) == 0)
w.Escape(s, tp.allowReserved)
}

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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package uritemplates
// Expand parses then expands a URI template with a set of values to produce
// the resultant URI. Two forms of the result are returned: one with all the
// elements escaped, and one with the elements unescaped.
func Expand(path string, values map[string]string) (escaped, unescaped string, err error) {
template, err := parse(path)
if err != nil {
return "", "", err
}
escaped, unescaped = template.Expand(values)
return escaped, unescaped, nil
}

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// Copyright 2013 Google Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package googleapi
import (
"encoding/json"
"strconv"
)
// Int64s is a slice of int64s that marshal as quoted strings in JSON.
type Int64s []int64
func (q *Int64s) UnmarshalJSON(raw []byte) error {
*q = (*q)[:0]
var ss []string
if err := json.Unmarshal(raw, &ss); err != nil {
return err
}
for _, s := range ss {
v, err := strconv.ParseInt(s, 10, 64)
if err != nil {
return err
}
*q = append(*q, int64(v))
}
return nil
}
// Int32s is a slice of int32s that marshal as quoted strings in JSON.
type Int32s []int32
func (q *Int32s) UnmarshalJSON(raw []byte) error {
*q = (*q)[:0]
var ss []string
if err := json.Unmarshal(raw, &ss); err != nil {
return err
}
for _, s := range ss {
v, err := strconv.ParseInt(s, 10, 32)
if err != nil {
return err
}
*q = append(*q, int32(v))
}
return nil
}
// Uint64s is a slice of uint64s that marshal as quoted strings in JSON.
type Uint64s []uint64
func (q *Uint64s) UnmarshalJSON(raw []byte) error {
*q = (*q)[:0]
var ss []string
if err := json.Unmarshal(raw, &ss); err != nil {
return err
}
for _, s := range ss {
v, err := strconv.ParseUint(s, 10, 64)
if err != nil {
return err
}
*q = append(*q, uint64(v))
}
return nil
}
// Uint32s is a slice of uint32s that marshal as quoted strings in JSON.
type Uint32s []uint32
func (q *Uint32s) UnmarshalJSON(raw []byte) error {
*q = (*q)[:0]
var ss []string
if err := json.Unmarshal(raw, &ss); err != nil {
return err
}
for _, s := range ss {
v, err := strconv.ParseUint(s, 10, 32)
if err != nil {
return err
}
*q = append(*q, uint32(v))
}
return nil
}
// Float64s is a slice of float64s that marshal as quoted strings in JSON.
type Float64s []float64
func (q *Float64s) UnmarshalJSON(raw []byte) error {
*q = (*q)[:0]
var ss []string
if err := json.Unmarshal(raw, &ss); err != nil {
return err
}
for _, s := range ss {
v, err := strconv.ParseFloat(s, 64)
if err != nil {
return err
}
*q = append(*q, float64(v))
}
return nil
}
func quotedList(n int, fn func(dst []byte, i int) []byte) ([]byte, error) {
dst := make([]byte, 0, 2+n*10) // somewhat arbitrary
dst = append(dst, '[')
for i := 0; i < n; i++ {
if i > 0 {
dst = append(dst, ',')
}
dst = append(dst, '"')
dst = fn(dst, i)
dst = append(dst, '"')
}
dst = append(dst, ']')
return dst, nil
}
func (s Int64s) MarshalJSON() ([]byte, error) {
return quotedList(len(s), func(dst []byte, i int) []byte {
return strconv.AppendInt(dst, s[i], 10)
})
}
func (s Int32s) MarshalJSON() ([]byte, error) {
return quotedList(len(s), func(dst []byte, i int) []byte {
return strconv.AppendInt(dst, int64(s[i]), 10)
})
}
func (s Uint64s) MarshalJSON() ([]byte, error) {
return quotedList(len(s), func(dst []byte, i int) []byte {
return strconv.AppendUint(dst, s[i], 10)
})
}
func (s Uint32s) MarshalJSON() ([]byte, error) {
return quotedList(len(s), func(dst []byte, i int) []byte {
return strconv.AppendUint(dst, uint64(s[i]), 10)
})
}
func (s Float64s) MarshalJSON() ([]byte, error) {
return quotedList(len(s), func(dst []byte, i int) []byte {
return strconv.AppendFloat(dst, s[i], 'g', -1, 64)
})
}
/*
* Helper routines for simplifying the creation of optional fields of basic type.
*/
// Bool is a helper routine that allocates a new bool value
// to store v and returns a pointer to it.
func Bool(v bool) *bool { return &v }
// Int32 is a helper routine that allocates a new int32 value
// to store v and returns a pointer to it.
func Int32(v int32) *int32 { return &v }
// Int64 is a helper routine that allocates a new int64 value
// to store v and returns a pointer to it.
func Int64(v int64) *int64 { return &v }
// Float64 is a helper routine that allocates a new float64 value
// to store v and returns a pointer to it.
func Float64(v float64) *float64 { return &v }
// Uint32 is a helper routine that allocates a new uint32 value
// to store v and returns a pointer to it.
func Uint32(v uint32) *uint32 { return &v }
// Uint64 is a helper routine that allocates a new uint64 value
// to store v and returns a pointer to it.
func Uint64(v uint64) *uint64 { return &v }
// String is a helper routine that allocates a new string value
// to store v and returns a pointer to it.
func String(v string) *string { return &v }

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
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"Contribution" shall mean any work of authorship, including
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to that Work or Derivative Works thereof, that is intentionally
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designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
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this License, each Contributor hereby grants to You a perpetual,
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copyright license to reproduce, prepare Derivative Works of,
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(b) You must cause any modified files to carry prominent notices
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(c) You must retain, in the Source form of any Derivative Works
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liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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# Go App Engine packages
[![Build Status](https://travis-ci.org/golang/appengine.svg)](https://travis-ci.org/golang/appengine)
This repository supports the Go runtime on App Engine,
including both the standard App Engine and the
"App Engine flexible environment" (formerly known as "Managed VMs").
It provides APIs for interacting with App Engine services.
Its canonical import path is `google.golang.org/appengine`.
See https://cloud.google.com/appengine/docs/go/
for more information.
File issue reports and feature requests on the [Google App Engine issue
tracker](https://code.google.com/p/googleappengine/issues/entry?template=Go%20defect).
## Directory structure
The top level directory of this repository is the `appengine` package. It
contains the
basic APIs (e.g. `appengine.NewContext`) that apply across APIs. Specific API
packages are in subdirectories (e.g. `datastore`).
There is an `internal` subdirectory that contains service protocol buffers,
plus packages required for connectivity to make API calls. App Engine apps
should not directly import any package under `internal`.
## Updating a Go App Engine app
This section describes how to update an older Go App Engine app to use
these packages. A provided tool, `aefix`, can help automate steps 2 and 3
(run `go get google.golang.org/appengine/cmd/aefix` to install it), but
read the details below since `aefix` can't perform all the changes.
### 1. Update YAML files (App Engine flexible environment / Managed VMs only)
The `app.yaml` file (and YAML files for modules) should have these new lines added:
```
vm: true
```
See https://cloud.google.com/appengine/docs/go/modules/#Go_Instance_scaling_and_class for details.
### 2. Update import paths
The import paths for App Engine packages are now fully qualified, based at `google.golang.org/appengine`.
You will need to update your code to use import paths starting with that; for instance,
code importing `appengine/datastore` will now need to import `google.golang.org/appengine/datastore`.
### 3. Update code using deprecated, removed or modified APIs
Most App Engine services are available with exactly the same API.
A few APIs were cleaned up, and some are not available yet.
This list summarises the differences:
* `appengine.Context` has been replaced with the `Context` type from `golang.org/x/net/context`.
* Logging methods that were on `appengine.Context` are now functions in `google.golang.org/appengine/log`.
* `appengine.Timeout` has been removed. Use `context.WithTimeout` instead.
* `appengine.Datacenter` now takes a `context.Context` argument.
* `datastore.PropertyLoadSaver` has been simplified to use slices in place of channels.
* `delay.Call` now returns an error.
* `search.FieldLoadSaver` now handles document metadata.
* `urlfetch.Transport` no longer has a Deadline field; set a deadline on the
`context.Context` instead.
* `aetest` no longer declares its own Context type, and uses the standard one instead.
* `taskqueue.QueueStats` no longer takes a maxTasks argument. That argument has been
deprecated and unused for a long time.
* `appengine.BackendHostname` and `appengine.BackendInstance` were for the deprecated backends feature.
Use `appengine.ModuleHostname`and `appengine.ModuleName` instead.
* Most of `appengine/file` and parts of `appengine/blobstore` are deprecated.
Use [Google Cloud Storage](https://godoc.org/cloud.google.com/go/storage) if the
feature you require is not present in the new
[blobstore package](https://google.golang.org/appengine/blobstore).
* `appengine/socket` is not required on App Engine flexible environment / Managed VMs.
Use the standard `net` package instead.

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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// Package appengine provides basic functionality for Google App Engine.
//
// For more information on how to write Go apps for Google App Engine, see:
// https://cloud.google.com/appengine/docs/go/
package appengine // import "google.golang.org/appengine"
import (
"net/http"
"github.com/golang/protobuf/proto"
"golang.org/x/net/context"
"google.golang.org/appengine/internal"
)
// The gophers party all night; the rabbits provide the beats.
// Main is the principal entry point for an app running in App Engine.
//
// On App Engine Flexible it installs a trivial health checker if one isn't
// already registered, and starts listening on port 8080 (overridden by the
// $PORT environment variable).
//
// See https://cloud.google.com/appengine/docs/flexible/custom-runtimes#health_check_requests
// for details on how to do your own health checking.
//
// On App Engine Standard it ensures the server has started and is prepared to
// receive requests.
//
// Main never returns.
//
// Main is designed so that the app's main package looks like this:
//
// package main
//
// import (
// "google.golang.org/appengine"
//
// _ "myapp/package0"
// _ "myapp/package1"
// )
//
// func main() {
// appengine.Main()
// }
//
// The "myapp/packageX" packages are expected to register HTTP handlers
// in their init functions.
func Main() {
internal.Main()
}
// IsDevAppServer reports whether the App Engine app is running in the
// development App Server.
func IsDevAppServer() bool {
return internal.IsDevAppServer()
}
// NewContext returns a context for an in-flight HTTP request.
// This function is cheap.
func NewContext(req *http.Request) context.Context {
return WithContext(context.Background(), req)
}
// WithContext returns a copy of the parent context
// and associates it with an in-flight HTTP request.
// This function is cheap.
func WithContext(parent context.Context, req *http.Request) context.Context {
return internal.WithContext(parent, req)
}
// TODO(dsymonds): Add a Call function here? Otherwise other packages can't access internal.Call.
// BlobKey is a key for a blobstore blob.
//
// Conceptually, this type belongs in the blobstore package, but it lives in
// the appengine package to avoid a circular dependency: blobstore depends on
// datastore, and datastore needs to refer to the BlobKey type.
type BlobKey string
// GeoPoint represents a location as latitude/longitude in degrees.
type GeoPoint struct {
Lat, Lng float64
}
// Valid returns whether a GeoPoint is within [-90, 90] latitude and [-180, 180] longitude.
func (g GeoPoint) Valid() bool {
return -90 <= g.Lat && g.Lat <= 90 && -180 <= g.Lng && g.Lng <= 180
}
// APICallFunc defines a function type for handling an API call.
// See WithCallOverride.
type APICallFunc func(ctx context.Context, service, method string, in, out proto.Message) error
// WithAPICallFunc returns a copy of the parent context
// that will cause API calls to invoke f instead of their normal operation.
//
// This is intended for advanced users only.
func WithAPICallFunc(ctx context.Context, f APICallFunc) context.Context {
return internal.WithCallOverride(ctx, internal.CallOverrideFunc(f))
}
// APICall performs an API call.
//
// This is not intended for general use; it is exported for use in conjunction
// with WithAPICallFunc.
func APICall(ctx context.Context, service, method string, in, out proto.Message) error {
return internal.Call(ctx, service, method, in, out)
}

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// Copyright 2015 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// +build !appengine
package appengine
import (
"golang.org/x/net/context"
"google.golang.org/appengine/internal"
)
// BackgroundContext returns a context not associated with a request.
// This should only be used when not servicing a request.
// This only works in App Engine "flexible environment".
func BackgroundContext() context.Context {
return internal.BackgroundContext()
}

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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// This file provides error functions for common API failure modes.
package appengine
import (
"fmt"
"google.golang.org/appengine/internal"
)
// IsOverQuota reports whether err represents an API call failure
// due to insufficient available quota.
func IsOverQuota(err error) bool {
callErr, ok := err.(*internal.CallError)
return ok && callErr.Code == 4
}
// MultiError is returned by batch operations when there are errors with
// particular elements. Errors will be in a one-to-one correspondence with
// the input elements; successful elements will have a nil entry.
type MultiError []error
func (m MultiError) Error() string {
s, n := "", 0
for _, e := range m {
if e != nil {
if n == 0 {
s = e.Error()
}
n++
}
}
switch n {
case 0:
return "(0 errors)"
case 1:
return s
case 2:
return s + " (and 1 other error)"
}
return fmt.Sprintf("%s (and %d other errors)", s, n-1)
}

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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package appengine
import (
"time"
"golang.org/x/net/context"
"google.golang.org/appengine/internal"
pb "google.golang.org/appengine/internal/app_identity"
modpb "google.golang.org/appengine/internal/modules"
)
// AppID returns the application ID for the current application.
// The string will be a plain application ID (e.g. "appid"), with a
// domain prefix for custom domain deployments (e.g. "example.com:appid").
func AppID(c context.Context) string { return internal.AppID(c) }
// DefaultVersionHostname returns the standard hostname of the default version
// of the current application (e.g. "my-app.appspot.com"). This is suitable for
// use in constructing URLs.
func DefaultVersionHostname(c context.Context) string {
return internal.DefaultVersionHostname(c)
}
// ModuleName returns the module name of the current instance.
func ModuleName(c context.Context) string {
return internal.ModuleName(c)
}
// ModuleHostname returns a hostname of a module instance.
// If module is the empty string, it refers to the module of the current instance.
// If version is empty, it refers to the version of the current instance if valid,
// or the default version of the module of the current instance.
// If instance is empty, ModuleHostname returns the load-balancing hostname.
func ModuleHostname(c context.Context, module, version, instance string) (string, error) {
req := &modpb.GetHostnameRequest{}
if module != "" {
req.Module = &module
}
if version != "" {
req.Version = &version
}
if instance != "" {
req.Instance = &instance
}
res := &modpb.GetHostnameResponse{}
if err := internal.Call(c, "modules", "GetHostname", req, res); err != nil {
return "", err
}
return *res.Hostname, nil
}
// VersionID returns the version ID for the current application.
// It will be of the form "X.Y", where X is specified in app.yaml,
// and Y is a number generated when each version of the app is uploaded.
// It does not include a module name.
func VersionID(c context.Context) string { return internal.VersionID(c) }
// InstanceID returns a mostly-unique identifier for this instance.
func InstanceID() string { return internal.InstanceID() }
// Datacenter returns an identifier for the datacenter that the instance is running in.
func Datacenter(c context.Context) string { return internal.Datacenter(c) }
// ServerSoftware returns the App Engine release version.
// In production, it looks like "Google App Engine/X.Y.Z".
// In the development appserver, it looks like "Development/X.Y".
func ServerSoftware() string { return internal.ServerSoftware() }
// RequestID returns a string that uniquely identifies the request.
func RequestID(c context.Context) string { return internal.RequestID(c) }
// AccessToken generates an OAuth2 access token for the specified scopes on
// behalf of service account of this application. This token will expire after
// the returned time.
func AccessToken(c context.Context, scopes ...string) (token string, expiry time.Time, err error) {
req := &pb.GetAccessTokenRequest{Scope: scopes}
res := &pb.GetAccessTokenResponse{}
err = internal.Call(c, "app_identity_service", "GetAccessToken", req, res)
if err != nil {
return "", time.Time{}, err
}
return res.GetAccessToken(), time.Unix(res.GetExpirationTime(), 0), nil
}
// Certificate represents a public certificate for the app.
type Certificate struct {
KeyName string
Data []byte // PEM-encoded X.509 certificate
}
// PublicCertificates retrieves the public certificates for the app.
// They can be used to verify a signature returned by SignBytes.
func PublicCertificates(c context.Context) ([]Certificate, error) {
req := &pb.GetPublicCertificateForAppRequest{}
res := &pb.GetPublicCertificateForAppResponse{}
if err := internal.Call(c, "app_identity_service", "GetPublicCertificatesForApp", req, res); err != nil {
return nil, err
}
var cs []Certificate
for _, pc := range res.PublicCertificateList {
cs = append(cs, Certificate{
KeyName: pc.GetKeyName(),
Data: []byte(pc.GetX509CertificatePem()),
})
}
return cs, nil
}
// ServiceAccount returns a string representing the service account name, in
// the form of an email address (typically app_id@appspot.gserviceaccount.com).
func ServiceAccount(c context.Context) (string, error) {
req := &pb.GetServiceAccountNameRequest{}
res := &pb.GetServiceAccountNameResponse{}
err := internal.Call(c, "app_identity_service", "GetServiceAccountName", req, res)
if err != nil {
return "", err
}
return res.GetServiceAccountName(), err
}
// SignBytes signs bytes using a private key unique to your application.
func SignBytes(c context.Context, bytes []byte) (keyName string, signature []byte, err error) {
req := &pb.SignForAppRequest{BytesToSign: bytes}
res := &pb.SignForAppResponse{}
if err := internal.Call(c, "app_identity_service", "SignForApp", req, res); err != nil {
return "", nil, err
}
return res.GetKeyName(), res.GetSignatureBytes(), nil
}
func init() {
internal.RegisterErrorCodeMap("app_identity_service", pb.AppIdentityServiceError_ErrorCode_name)
internal.RegisterErrorCodeMap("modules", modpb.ModulesServiceError_ErrorCode_name)
}

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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// +build !appengine
package internal
import (
"bytes"
"errors"
"fmt"
"io/ioutil"
"log"
"net"
"net/http"
"net/url"
"os"
"runtime"
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/golang/protobuf/proto"
netcontext "golang.org/x/net/context"
basepb "google.golang.org/appengine/internal/base"
logpb "google.golang.org/appengine/internal/log"
remotepb "google.golang.org/appengine/internal/remote_api"
)
const (
apiPath = "/rpc_http"
defaultTicketSuffix = "/default.20150612t184001.0"
)
var (
// Incoming headers.
ticketHeader = http.CanonicalHeaderKey("X-AppEngine-API-Ticket")
dapperHeader = http.CanonicalHeaderKey("X-Google-DapperTraceInfo")
traceHeader = http.CanonicalHeaderKey("X-Cloud-Trace-Context")
curNamespaceHeader = http.CanonicalHeaderKey("X-AppEngine-Current-Namespace")
userIPHeader = http.CanonicalHeaderKey("X-AppEngine-User-IP")
remoteAddrHeader = http.CanonicalHeaderKey("X-AppEngine-Remote-Addr")
// Outgoing headers.
apiEndpointHeader = http.CanonicalHeaderKey("X-Google-RPC-Service-Endpoint")
apiEndpointHeaderValue = []string{"app-engine-apis"}
apiMethodHeader = http.CanonicalHeaderKey("X-Google-RPC-Service-Method")
apiMethodHeaderValue = []string{"/VMRemoteAPI.CallRemoteAPI"}
apiDeadlineHeader = http.CanonicalHeaderKey("X-Google-RPC-Service-Deadline")
apiContentType = http.CanonicalHeaderKey("Content-Type")
apiContentTypeValue = []string{"application/octet-stream"}
logFlushHeader = http.CanonicalHeaderKey("X-AppEngine-Log-Flush-Count")
apiHTTPClient = &http.Client{
Transport: &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: limitDial,
},
}
defaultTicketOnce sync.Once
defaultTicket string
)
func apiURL() *url.URL {
host, port := "appengine.googleapis.internal", "10001"
if h := os.Getenv("API_HOST"); h != "" {
host = h
}
if p := os.Getenv("API_PORT"); p != "" {
port = p
}
return &url.URL{
Scheme: "http",
Host: host + ":" + port,
Path: apiPath,
}
}
func handleHTTP(w http.ResponseWriter, r *http.Request) {
c := &context{
req: r,
outHeader: w.Header(),
apiURL: apiURL(),
}
stopFlushing := make(chan int)
ctxs.Lock()
ctxs.m[r] = c
ctxs.Unlock()
defer func() {
ctxs.Lock()
delete(ctxs.m, r)
ctxs.Unlock()
}()
// Patch up RemoteAddr so it looks reasonable.
if addr := r.Header.Get(userIPHeader); addr != "" {
r.RemoteAddr = addr
} else if addr = r.Header.Get(remoteAddrHeader); addr != "" {
r.RemoteAddr = addr
} else {
// Should not normally reach here, but pick a sensible default anyway.
r.RemoteAddr = "127.0.0.1"
}
// The address in the headers will most likely be of these forms:
// 123.123.123.123
// 2001:db8::1
// net/http.Request.RemoteAddr is specified to be in "IP:port" form.
if _, _, err := net.SplitHostPort(r.RemoteAddr); err != nil {
// Assume the remote address is only a host; add a default port.
r.RemoteAddr = net.JoinHostPort(r.RemoteAddr, "80")
}
// Start goroutine responsible for flushing app logs.
// This is done after adding c to ctx.m (and stopped before removing it)
// because flushing logs requires making an API call.
go c.logFlusher(stopFlushing)
executeRequestSafely(c, r)
c.outHeader = nil // make sure header changes aren't respected any more
stopFlushing <- 1 // any logging beyond this point will be dropped
// Flush any pending logs asynchronously.
c.pendingLogs.Lock()
flushes := c.pendingLogs.flushes
if len(c.pendingLogs.lines) > 0 {
flushes++
}
c.pendingLogs.Unlock()
go c.flushLog(false)
w.Header().Set(logFlushHeader, strconv.Itoa(flushes))
// Avoid nil Write call if c.Write is never called.
if c.outCode != 0 {
w.WriteHeader(c.outCode)
}
if c.outBody != nil {
w.Write(c.outBody)
}
}
func executeRequestSafely(c *context, r *http.Request) {
defer func() {
if x := recover(); x != nil {
logf(c, 4, "%s", renderPanic(x)) // 4 == critical
c.outCode = 500
}
}()
http.DefaultServeMux.ServeHTTP(c, r)
}
func renderPanic(x interface{}) string {
buf := make([]byte, 16<<10) // 16 KB should be plenty
buf = buf[:runtime.Stack(buf, false)]
// Remove the first few stack frames:
// this func
// the recover closure in the caller
// That will root the stack trace at the site of the panic.
const (
skipStart = "internal.renderPanic"
skipFrames = 2
)
start := bytes.Index(buf, []byte(skipStart))
p := start
for i := 0; i < skipFrames*2 && p+1 < len(buf); i++ {
p = bytes.IndexByte(buf[p+1:], '\n') + p + 1
if p < 0 {
break
}
}
if p >= 0 {
// buf[start:p+1] is the block to remove.
// Copy buf[p+1:] over buf[start:] and shrink buf.
copy(buf[start:], buf[p+1:])
buf = buf[:len(buf)-(p+1-start)]
}
// Add panic heading.
head := fmt.Sprintf("panic: %v\n\n", x)
if len(head) > len(buf) {
// Extremely unlikely to happen.
return head
}
copy(buf[len(head):], buf)
copy(buf, head)
return string(buf)
}
var ctxs = struct {
sync.Mutex
m map[*http.Request]*context
bg *context // background context, lazily initialized
// dec is used by tests to decorate the netcontext.Context returned
// for a given request. This allows tests to add overrides (such as
// WithAppIDOverride) to the context. The map is nil outside tests.
dec map[*http.Request]func(netcontext.Context) netcontext.Context
}{
m: make(map[*http.Request]*context),
}
// context represents the context of an in-flight HTTP request.
// It implements the appengine.Context and http.ResponseWriter interfaces.
type context struct {
req *http.Request
outCode int
outHeader http.Header
outBody []byte
pendingLogs struct {
sync.Mutex
lines []*logpb.UserAppLogLine
flushes int
}
apiURL *url.URL
}
var contextKey = "holds a *context"
func fromContext(ctx netcontext.Context) *context {
c, _ := ctx.Value(&contextKey).(*context)
return c
}
func withContext(parent netcontext.Context, c *context) netcontext.Context {
ctx := netcontext.WithValue(parent, &contextKey, c)
if ns := c.req.Header.Get(curNamespaceHeader); ns != "" {
ctx = withNamespace(ctx, ns)
}
return ctx
}
func toContext(c *context) netcontext.Context {
return withContext(netcontext.Background(), c)
}
func IncomingHeaders(ctx netcontext.Context) http.Header {
if c := fromContext(ctx); c != nil {
return c.req.Header
}
return nil
}
func WithContext(parent netcontext.Context, req *http.Request) netcontext.Context {
ctxs.Lock()
c := ctxs.m[req]
d := ctxs.dec[req]
ctxs.Unlock()
if d != nil {
parent = d(parent)
}
if c == nil {
// Someone passed in an http.Request that is not in-flight.
// We panic here rather than panicking at a later point
// so that stack traces will be more sensible.
log.Panic("appengine: NewContext passed an unknown http.Request")
}
return withContext(parent, c)
}
// DefaultTicket returns a ticket used for background context or dev_appserver.
func DefaultTicket() string {
defaultTicketOnce.Do(func() {
if IsDevAppServer() {
defaultTicket = "testapp" + defaultTicketSuffix
return
}
appID := partitionlessAppID()
escAppID := strings.Replace(strings.Replace(appID, ":", "_", -1), ".", "_", -1)
majVersion := VersionID(nil)
if i := strings.Index(majVersion, "."); i > 0 {
majVersion = majVersion[:i]
}
defaultTicket = fmt.Sprintf("%s/%s.%s.%s", escAppID, ModuleName(nil), majVersion, InstanceID())
})
return defaultTicket
}
func BackgroundContext() netcontext.Context {
ctxs.Lock()
defer ctxs.Unlock()
if ctxs.bg != nil {
return toContext(ctxs.bg)
}
// Compute background security ticket.
ticket := DefaultTicket()
ctxs.bg = &context{
req: &http.Request{
Header: http.Header{
ticketHeader: []string{ticket},
},
},
apiURL: apiURL(),
}
// TODO(dsymonds): Wire up the shutdown handler to do a final flush.
go ctxs.bg.logFlusher(make(chan int))
return toContext(ctxs.bg)
}
// RegisterTestRequest registers the HTTP request req for testing, such that
// any API calls are sent to the provided URL. It returns a closure to delete
// the registration.
// It should only be used by aetest package.
func RegisterTestRequest(req *http.Request, apiURL *url.URL, decorate func(netcontext.Context) netcontext.Context) func() {
c := &context{
req: req,
apiURL: apiURL,
}
ctxs.Lock()
defer ctxs.Unlock()
if _, ok := ctxs.m[req]; ok {
log.Panic("req already associated with context")
}
if _, ok := ctxs.dec[req]; ok {
log.Panic("req already associated with context")
}
if ctxs.dec == nil {
ctxs.dec = make(map[*http.Request]func(netcontext.Context) netcontext.Context)
}
ctxs.m[req] = c
ctxs.dec[req] = decorate
return func() {
ctxs.Lock()
delete(ctxs.m, req)
delete(ctxs.dec, req)
ctxs.Unlock()
}
}
var errTimeout = &CallError{
Detail: "Deadline exceeded",
Code: int32(remotepb.RpcError_CANCELLED),
Timeout: true,
}
func (c *context) Header() http.Header { return c.outHeader }
// Copied from $GOROOT/src/pkg/net/http/transfer.go. Some response status
// codes do not permit a response body (nor response entity headers such as
// Content-Length, Content-Type, etc).
func bodyAllowedForStatus(status int) bool {
switch {
case status >= 100 && status <= 199:
return false
case status == 204:
return false
case status == 304:
return false
}
return true
}
func (c *context) Write(b []byte) (int, error) {
if c.outCode == 0 {
c.WriteHeader(http.StatusOK)
}
if len(b) > 0 && !bodyAllowedForStatus(c.outCode) {
return 0, http.ErrBodyNotAllowed
}
c.outBody = append(c.outBody, b...)
return len(b), nil
}
func (c *context) WriteHeader(code int) {
if c.outCode != 0 {
logf(c, 3, "WriteHeader called multiple times on request.") // error level
return
}
c.outCode = code
}
func (c *context) post(body []byte, timeout time.Duration) (b []byte, err error) {
hreq := &http.Request{
Method: "POST",
URL: c.apiURL,
Header: http.Header{
apiEndpointHeader: apiEndpointHeaderValue,
apiMethodHeader: apiMethodHeaderValue,
apiContentType: apiContentTypeValue,
apiDeadlineHeader: []string{strconv.FormatFloat(timeout.Seconds(), 'f', -1, 64)},
},
Body: ioutil.NopCloser(bytes.NewReader(body)),
ContentLength: int64(len(body)),
Host: c.apiURL.Host,
}
if info := c.req.Header.Get(dapperHeader); info != "" {
hreq.Header.Set(dapperHeader, info)
}
if info := c.req.Header.Get(traceHeader); info != "" {
hreq.Header.Set(traceHeader, info)
}
tr := apiHTTPClient.Transport.(*http.Transport)
var timedOut int32 // atomic; set to 1 if timed out
t := time.AfterFunc(timeout, func() {
atomic.StoreInt32(&timedOut, 1)
tr.CancelRequest(hreq)
})
defer t.Stop()
defer func() {
// Check if timeout was exceeded.
if atomic.LoadInt32(&timedOut) != 0 {
err = errTimeout
}
}()
hresp, err := apiHTTPClient.Do(hreq)
if err != nil {
return nil, &CallError{
Detail: fmt.Sprintf("service bridge HTTP failed: %v", err),
Code: int32(remotepb.RpcError_UNKNOWN),
}
}
defer hresp.Body.Close()
hrespBody, err := ioutil.ReadAll(hresp.Body)
if hresp.StatusCode != 200 {
return nil, &CallError{
Detail: fmt.Sprintf("service bridge returned HTTP %d (%q)", hresp.StatusCode, hrespBody),
Code: int32(remotepb.RpcError_UNKNOWN),
}
}
if err != nil {
return nil, &CallError{
Detail: fmt.Sprintf("service bridge response bad: %v", err),
Code: int32(remotepb.RpcError_UNKNOWN),
}
}
return hrespBody, nil
}
func Call(ctx netcontext.Context, service, method string, in, out proto.Message) error {
if ns := NamespaceFromContext(ctx); ns != "" {
if fn, ok := NamespaceMods[service]; ok {
fn(in, ns)
}
}
if f, ctx, ok := callOverrideFromContext(ctx); ok {
return f(ctx, service, method, in, out)
}
// Handle already-done contexts quickly.
select {
case <-ctx.Done():
return ctx.Err()
default:
}
c := fromContext(ctx)
if c == nil {
// Give a good error message rather than a panic lower down.
return errors.New("not an App Engine context")
}
// Apply transaction modifications if we're in a transaction.
if t := transactionFromContext(ctx); t != nil {
if t.finished {
return errors.New("transaction context has expired")
}
applyTransaction(in, &t.transaction)
}
// Default RPC timeout is 60s.
timeout := 60 * time.Second
if deadline, ok := ctx.Deadline(); ok {
timeout = deadline.Sub(time.Now())
}
data, err := proto.Marshal(in)
if err != nil {
return err
}
ticket := c.req.Header.Get(ticketHeader)
// Use a test ticket under test environment.
if ticket == "" {
if appid := ctx.Value(&appIDOverrideKey); appid != nil {
ticket = appid.(string) + defaultTicketSuffix
}
}
// Fall back to use background ticket when the request ticket is not available in Flex or dev_appserver.
if ticket == "" {
ticket = DefaultTicket()
}
req := &remotepb.Request{
ServiceName: &service,
Method: &method,
Request: data,
RequestId: &ticket,
}
hreqBody, err := proto.Marshal(req)
if err != nil {
return err
}
hrespBody, err := c.post(hreqBody, timeout)
if err != nil {
return err
}
res := &remotepb.Response{}
if err := proto.Unmarshal(hrespBody, res); err != nil {
return err
}
if res.RpcError != nil {
ce := &CallError{
Detail: res.RpcError.GetDetail(),
Code: *res.RpcError.Code,
}
switch remotepb.RpcError_ErrorCode(ce.Code) {
case remotepb.RpcError_CANCELLED, remotepb.RpcError_DEADLINE_EXCEEDED:
ce.Timeout = true
}
return ce
}
if res.ApplicationError != nil {
return &APIError{
Service: *req.ServiceName,
Detail: res.ApplicationError.GetDetail(),
Code: *res.ApplicationError.Code,
}
}
if res.Exception != nil || res.JavaException != nil {
// This shouldn't happen, but let's be defensive.
return &CallError{
Detail: "service bridge returned exception",
Code: int32(remotepb.RpcError_UNKNOWN),
}
}
return proto.Unmarshal(res.Response, out)
}
func (c *context) Request() *http.Request {
return c.req
}
func (c *context) addLogLine(ll *logpb.UserAppLogLine) {
// Truncate long log lines.
// TODO(dsymonds): Check if this is still necessary.
const lim = 8 << 10
if len(*ll.Message) > lim {
suffix := fmt.Sprintf("...(length %d)", len(*ll.Message))
ll.Message = proto.String((*ll.Message)[:lim-len(suffix)] + suffix)
}
c.pendingLogs.Lock()
c.pendingLogs.lines = append(c.pendingLogs.lines, ll)
c.pendingLogs.Unlock()
}
var logLevelName = map[int64]string{
0: "DEBUG",
1: "INFO",
2: "WARNING",
3: "ERROR",
4: "CRITICAL",
}
func logf(c *context, level int64, format string, args ...interface{}) {
if c == nil {
panic("not an App Engine context")
}
s := fmt.Sprintf(format, args...)
s = strings.TrimRight(s, "\n") // Remove any trailing newline characters.
c.addLogLine(&logpb.UserAppLogLine{
TimestampUsec: proto.Int64(time.Now().UnixNano() / 1e3),
Level: &level,
Message: &s,
})
log.Print(logLevelName[level] + ": " + s)
}
// flushLog attempts to flush any pending logs to the appserver.
// It should not be called concurrently.
func (c *context) flushLog(force bool) (flushed bool) {
c.pendingLogs.Lock()
// Grab up to 30 MB. We can get away with up to 32 MB, but let's be cautious.
n, rem := 0, 30<<20
for ; n < len(c.pendingLogs.lines); n++ {
ll := c.pendingLogs.lines[n]
// Each log line will require about 3 bytes of overhead.
nb := proto.Size(ll) + 3
if nb > rem {
break
}
rem -= nb
}
lines := c.pendingLogs.lines[:n]
c.pendingLogs.lines = c.pendingLogs.lines[n:]
c.pendingLogs.Unlock()
if len(lines) == 0 && !force {
// Nothing to flush.
return false
}
rescueLogs := false
defer func() {
if rescueLogs {
c.pendingLogs.Lock()
c.pendingLogs.lines = append(lines, c.pendingLogs.lines...)
c.pendingLogs.Unlock()
}
}()
buf, err := proto.Marshal(&logpb.UserAppLogGroup{
LogLine: lines,
})
if err != nil {
log.Printf("internal.flushLog: marshaling UserAppLogGroup: %v", err)
rescueLogs = true
return false
}
req := &logpb.FlushRequest{
Logs: buf,
}
res := &basepb.VoidProto{}
c.pendingLogs.Lock()
c.pendingLogs.flushes++
c.pendingLogs.Unlock()
if err := Call(toContext(c), "logservice", "Flush", req, res); err != nil {
log.Printf("internal.flushLog: Flush RPC: %v", err)
rescueLogs = true
return false
}
return true
}
const (
// Log flushing parameters.
flushInterval = 1 * time.Second
forceFlushInterval = 60 * time.Second
)
func (c *context) logFlusher(stop <-chan int) {
lastFlush := time.Now()
tick := time.NewTicker(flushInterval)
for {
select {
case <-stop:
// Request finished.
tick.Stop()
return
case <-tick.C:
force := time.Now().Sub(lastFlush) > forceFlushInterval
if c.flushLog(force) {
lastFlush = time.Now()
}
}
}
}
func ContextForTesting(req *http.Request) netcontext.Context {
return toContext(&context{req: req})
}

159
vendor/google.golang.org/appengine/internal/api_classic.go generated vendored Normal file
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// Copyright 2015 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// +build appengine
package internal
import (
"errors"
"fmt"
"net/http"
"time"
"appengine"
"appengine_internal"
basepb "appengine_internal/base"
"github.com/golang/protobuf/proto"
netcontext "golang.org/x/net/context"
)
var contextKey = "holds an appengine.Context"
func fromContext(ctx netcontext.Context) appengine.Context {
c, _ := ctx.Value(&contextKey).(appengine.Context)
return c
}
// This is only for classic App Engine adapters.
func ClassicContextFromContext(ctx netcontext.Context) appengine.Context {
return fromContext(ctx)
}
func withContext(parent netcontext.Context, c appengine.Context) netcontext.Context {
ctx := netcontext.WithValue(parent, &contextKey, c)
s := &basepb.StringProto{}
c.Call("__go__", "GetNamespace", &basepb.VoidProto{}, s, nil)
if ns := s.GetValue(); ns != "" {
ctx = NamespacedContext(ctx, ns)
}
return ctx
}
func IncomingHeaders(ctx netcontext.Context) http.Header {
if c := fromContext(ctx); c != nil {
if req, ok := c.Request().(*http.Request); ok {
return req.Header
}
}
return nil
}
func WithContext(parent netcontext.Context, req *http.Request) netcontext.Context {
c := appengine.NewContext(req)
return withContext(parent, c)
}
type testingContext struct {
appengine.Context
req *http.Request
}
func (t *testingContext) FullyQualifiedAppID() string { return "dev~testcontext" }
func (t *testingContext) Call(service, method string, _, _ appengine_internal.ProtoMessage, _ *appengine_internal.CallOptions) error {
if service == "__go__" && method == "GetNamespace" {
return nil
}
return fmt.Errorf("testingContext: unsupported Call")
}
func (t *testingContext) Request() interface{} { return t.req }
func ContextForTesting(req *http.Request) netcontext.Context {
return withContext(netcontext.Background(), &testingContext{req: req})
}
func Call(ctx netcontext.Context, service, method string, in, out proto.Message) error {
if ns := NamespaceFromContext(ctx); ns != "" {
if fn, ok := NamespaceMods[service]; ok {
fn(in, ns)
}
}
if f, ctx, ok := callOverrideFromContext(ctx); ok {
return f(ctx, service, method, in, out)
}
// Handle already-done contexts quickly.
select {
case <-ctx.Done():
return ctx.Err()
default:
}
c := fromContext(ctx)
if c == nil {
// Give a good error message rather than a panic lower down.
return errors.New("not an App Engine context")
}
// Apply transaction modifications if we're in a transaction.
if t := transactionFromContext(ctx); t != nil {
if t.finished {
return errors.New("transaction context has expired")
}
applyTransaction(in, &t.transaction)
}
var opts *appengine_internal.CallOptions
if d, ok := ctx.Deadline(); ok {
opts = &appengine_internal.CallOptions{
Timeout: d.Sub(time.Now()),
}
}
err := c.Call(service, method, in, out, opts)
switch v := err.(type) {
case *appengine_internal.APIError:
return &APIError{
Service: v.Service,
Detail: v.Detail,
Code: v.Code,
}
case *appengine_internal.CallError:
return &CallError{
Detail: v.Detail,
Code: v.Code,
Timeout: v.Timeout,
}
}
return err
}
func handleHTTP(w http.ResponseWriter, r *http.Request) {
panic("handleHTTP called; this should be impossible")
}
func logf(c appengine.Context, level int64, format string, args ...interface{}) {
var fn func(format string, args ...interface{})
switch level {
case 0:
fn = c.Debugf
case 1:
fn = c.Infof
case 2:
fn = c.Warningf
case 3:
fn = c.Errorf
case 4:
fn = c.Criticalf
default:
// This shouldn't happen.
fn = c.Criticalf
}
fn(format, args...)
}

116
vendor/google.golang.org/appengine/internal/api_common.go generated vendored Normal file
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// Copyright 2015 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package internal
import (
"os"
"github.com/golang/protobuf/proto"
netcontext "golang.org/x/net/context"
)
type CallOverrideFunc func(ctx netcontext.Context, service, method string, in, out proto.Message) error
var callOverrideKey = "holds []CallOverrideFunc"
func WithCallOverride(ctx netcontext.Context, f CallOverrideFunc) netcontext.Context {
// We avoid appending to any existing call override
// so we don't risk overwriting a popped stack below.
var cofs []CallOverrideFunc
if uf, ok := ctx.Value(&callOverrideKey).([]CallOverrideFunc); ok {
cofs = append(cofs, uf...)
}
cofs = append(cofs, f)
return netcontext.WithValue(ctx, &callOverrideKey, cofs)
}
func callOverrideFromContext(ctx netcontext.Context) (CallOverrideFunc, netcontext.Context, bool) {
cofs, _ := ctx.Value(&callOverrideKey).([]CallOverrideFunc)
if len(cofs) == 0 {
return nil, nil, false
}
// We found a list of overrides; grab the last, and reconstitute a
// context that will hide it.
f := cofs[len(cofs)-1]
ctx = netcontext.WithValue(ctx, &callOverrideKey, cofs[:len(cofs)-1])
return f, ctx, true
}
type logOverrideFunc func(level int64, format string, args ...interface{})
var logOverrideKey = "holds a logOverrideFunc"
func WithLogOverride(ctx netcontext.Context, f logOverrideFunc) netcontext.Context {
return netcontext.WithValue(ctx, &logOverrideKey, f)
}
var appIDOverrideKey = "holds a string, being the full app ID"
func WithAppIDOverride(ctx netcontext.Context, appID string) netcontext.Context {
return netcontext.WithValue(ctx, &appIDOverrideKey, appID)
}
var namespaceKey = "holds the namespace string"
func withNamespace(ctx netcontext.Context, ns string) netcontext.Context {
return netcontext.WithValue(ctx, &namespaceKey, ns)
}
func NamespaceFromContext(ctx netcontext.Context) string {
// If there's no namespace, return the empty string.
ns, _ := ctx.Value(&namespaceKey).(string)
return ns
}
// FullyQualifiedAppID returns the fully-qualified application ID.
// This may contain a partition prefix (e.g. "s~" for High Replication apps),
// or a domain prefix (e.g. "example.com:").
func FullyQualifiedAppID(ctx netcontext.Context) string {
if id, ok := ctx.Value(&appIDOverrideKey).(string); ok {
return id
}
return fullyQualifiedAppID(ctx)
}
func Logf(ctx netcontext.Context, level int64, format string, args ...interface{}) {
if f, ok := ctx.Value(&logOverrideKey).(logOverrideFunc); ok {
f(level, format, args...)
return
}
logf(fromContext(ctx), level, format, args...)
}
// NamespacedContext wraps a Context to support namespaces.
func NamespacedContext(ctx netcontext.Context, namespace string) netcontext.Context {
return withNamespace(ctx, namespace)
}
// SetTestEnv sets the env variables for testing background ticket in Flex.
func SetTestEnv() func() {
var environ = []struct {
key, value string
}{
{"GAE_LONG_APP_ID", "my-app-id"},
{"GAE_MINOR_VERSION", "067924799508853122"},
{"GAE_MODULE_INSTANCE", "0"},
{"GAE_MODULE_NAME", "default"},
{"GAE_MODULE_VERSION", "20150612t184001"},
}
for _, v := range environ {
old := os.Getenv(v.key)
os.Setenv(v.key, v.value)
v.value = old
}
return func() { // Restore old environment after the test completes.
for _, v := range environ {
if v.value == "" {
os.Unsetenv(v.key)
continue
}
os.Setenv(v.key, v.value)
}
}
}

28
vendor/google.golang.org/appengine/internal/app_id.go generated vendored Normal file
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@ -0,0 +1,28 @@
// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package internal
import (
"strings"
)
func parseFullAppID(appid string) (partition, domain, displayID string) {
if i := strings.Index(appid, "~"); i != -1 {
partition, appid = appid[:i], appid[i+1:]
}
if i := strings.Index(appid, ":"); i != -1 {
domain, appid = appid[:i], appid[i+1:]
}
return partition, domain, appid
}
// appID returns "appid" or "domain.com:appid".
func appID(fullAppID string) string {
_, dom, dis := parseFullAppID(fullAppID)
if dom != "" {
return dom + ":" + dis
}
return dis
}

296
vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.pb.go generated vendored Normal file
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@ -0,0 +1,296 @@
// Code generated by protoc-gen-go.
// source: google.golang.org/appengine/internal/app_identity/app_identity_service.proto
// DO NOT EDIT!
/*
Package app_identity is a generated protocol buffer package.
It is generated from these files:
google.golang.org/appengine/internal/app_identity/app_identity_service.proto
It has these top-level messages:
AppIdentityServiceError
SignForAppRequest
SignForAppResponse
GetPublicCertificateForAppRequest
PublicCertificate
GetPublicCertificateForAppResponse
GetServiceAccountNameRequest
GetServiceAccountNameResponse
GetAccessTokenRequest
GetAccessTokenResponse
GetDefaultGcsBucketNameRequest
GetDefaultGcsBucketNameResponse
*/
package app_identity
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
type AppIdentityServiceError_ErrorCode int32
const (
AppIdentityServiceError_SUCCESS AppIdentityServiceError_ErrorCode = 0
AppIdentityServiceError_UNKNOWN_SCOPE AppIdentityServiceError_ErrorCode = 9
AppIdentityServiceError_BLOB_TOO_LARGE AppIdentityServiceError_ErrorCode = 1000
AppIdentityServiceError_DEADLINE_EXCEEDED AppIdentityServiceError_ErrorCode = 1001
AppIdentityServiceError_NOT_A_VALID_APP AppIdentityServiceError_ErrorCode = 1002
AppIdentityServiceError_UNKNOWN_ERROR AppIdentityServiceError_ErrorCode = 1003
AppIdentityServiceError_NOT_ALLOWED AppIdentityServiceError_ErrorCode = 1005
AppIdentityServiceError_NOT_IMPLEMENTED AppIdentityServiceError_ErrorCode = 1006
)
var AppIdentityServiceError_ErrorCode_name = map[int32]string{
0: "SUCCESS",
9: "UNKNOWN_SCOPE",
1000: "BLOB_TOO_LARGE",
1001: "DEADLINE_EXCEEDED",
1002: "NOT_A_VALID_APP",
1003: "UNKNOWN_ERROR",
1005: "NOT_ALLOWED",
1006: "NOT_IMPLEMENTED",
}
var AppIdentityServiceError_ErrorCode_value = map[string]int32{
"SUCCESS": 0,
"UNKNOWN_SCOPE": 9,
"BLOB_TOO_LARGE": 1000,
"DEADLINE_EXCEEDED": 1001,
"NOT_A_VALID_APP": 1002,
"UNKNOWN_ERROR": 1003,
"NOT_ALLOWED": 1005,
"NOT_IMPLEMENTED": 1006,
}
func (x AppIdentityServiceError_ErrorCode) Enum() *AppIdentityServiceError_ErrorCode {
p := new(AppIdentityServiceError_ErrorCode)
*p = x
return p
}
func (x AppIdentityServiceError_ErrorCode) String() string {
return proto.EnumName(AppIdentityServiceError_ErrorCode_name, int32(x))
}
func (x *AppIdentityServiceError_ErrorCode) UnmarshalJSON(data []byte) error {
value, err := proto.UnmarshalJSONEnum(AppIdentityServiceError_ErrorCode_value, data, "AppIdentityServiceError_ErrorCode")
if err != nil {
return err
}
*x = AppIdentityServiceError_ErrorCode(value)
return nil
}
type AppIdentityServiceError struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *AppIdentityServiceError) Reset() { *m = AppIdentityServiceError{} }
func (m *AppIdentityServiceError) String() string { return proto.CompactTextString(m) }
func (*AppIdentityServiceError) ProtoMessage() {}
type SignForAppRequest struct {
BytesToSign []byte `protobuf:"bytes,1,opt,name=bytes_to_sign" json:"bytes_to_sign,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *SignForAppRequest) Reset() { *m = SignForAppRequest{} }
func (m *SignForAppRequest) String() string { return proto.CompactTextString(m) }
func (*SignForAppRequest) ProtoMessage() {}
func (m *SignForAppRequest) GetBytesToSign() []byte {
if m != nil {
return m.BytesToSign
}
return nil
}
type SignForAppResponse struct {
KeyName *string `protobuf:"bytes,1,opt,name=key_name" json:"key_name,omitempty"`
SignatureBytes []byte `protobuf:"bytes,2,opt,name=signature_bytes" json:"signature_bytes,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *SignForAppResponse) Reset() { *m = SignForAppResponse{} }
func (m *SignForAppResponse) String() string { return proto.CompactTextString(m) }
func (*SignForAppResponse) ProtoMessage() {}
func (m *SignForAppResponse) GetKeyName() string {
if m != nil && m.KeyName != nil {
return *m.KeyName
}
return ""
}
func (m *SignForAppResponse) GetSignatureBytes() []byte {
if m != nil {
return m.SignatureBytes
}
return nil
}
type GetPublicCertificateForAppRequest struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *GetPublicCertificateForAppRequest) Reset() { *m = GetPublicCertificateForAppRequest{} }
func (m *GetPublicCertificateForAppRequest) String() string { return proto.CompactTextString(m) }
func (*GetPublicCertificateForAppRequest) ProtoMessage() {}
type PublicCertificate struct {
KeyName *string `protobuf:"bytes,1,opt,name=key_name" json:"key_name,omitempty"`
X509CertificatePem *string `protobuf:"bytes,2,opt,name=x509_certificate_pem" json:"x509_certificate_pem,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *PublicCertificate) Reset() { *m = PublicCertificate{} }
func (m *PublicCertificate) String() string { return proto.CompactTextString(m) }
func (*PublicCertificate) ProtoMessage() {}
func (m *PublicCertificate) GetKeyName() string {
if m != nil && m.KeyName != nil {
return *m.KeyName
}
return ""
}
func (m *PublicCertificate) GetX509CertificatePem() string {
if m != nil && m.X509CertificatePem != nil {
return *m.X509CertificatePem
}
return ""
}
type GetPublicCertificateForAppResponse struct {
PublicCertificateList []*PublicCertificate `protobuf:"bytes,1,rep,name=public_certificate_list" json:"public_certificate_list,omitempty"`
MaxClientCacheTimeInSecond *int64 `protobuf:"varint,2,opt,name=max_client_cache_time_in_second" json:"max_client_cache_time_in_second,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetPublicCertificateForAppResponse) Reset() { *m = GetPublicCertificateForAppResponse{} }
func (m *GetPublicCertificateForAppResponse) String() string { return proto.CompactTextString(m) }
func (*GetPublicCertificateForAppResponse) ProtoMessage() {}
func (m *GetPublicCertificateForAppResponse) GetPublicCertificateList() []*PublicCertificate {
if m != nil {
return m.PublicCertificateList
}
return nil
}
func (m *GetPublicCertificateForAppResponse) GetMaxClientCacheTimeInSecond() int64 {
if m != nil && m.MaxClientCacheTimeInSecond != nil {
return *m.MaxClientCacheTimeInSecond
}
return 0
}
type GetServiceAccountNameRequest struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *GetServiceAccountNameRequest) Reset() { *m = GetServiceAccountNameRequest{} }
func (m *GetServiceAccountNameRequest) String() string { return proto.CompactTextString(m) }
func (*GetServiceAccountNameRequest) ProtoMessage() {}
type GetServiceAccountNameResponse struct {
ServiceAccountName *string `protobuf:"bytes,1,opt,name=service_account_name" json:"service_account_name,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetServiceAccountNameResponse) Reset() { *m = GetServiceAccountNameResponse{} }
func (m *GetServiceAccountNameResponse) String() string { return proto.CompactTextString(m) }
func (*GetServiceAccountNameResponse) ProtoMessage() {}
func (m *GetServiceAccountNameResponse) GetServiceAccountName() string {
if m != nil && m.ServiceAccountName != nil {
return *m.ServiceAccountName
}
return ""
}
type GetAccessTokenRequest struct {
Scope []string `protobuf:"bytes,1,rep,name=scope" json:"scope,omitempty"`
ServiceAccountId *int64 `protobuf:"varint,2,opt,name=service_account_id" json:"service_account_id,omitempty"`
ServiceAccountName *string `protobuf:"bytes,3,opt,name=service_account_name" json:"service_account_name,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetAccessTokenRequest) Reset() { *m = GetAccessTokenRequest{} }
func (m *GetAccessTokenRequest) String() string { return proto.CompactTextString(m) }
func (*GetAccessTokenRequest) ProtoMessage() {}
func (m *GetAccessTokenRequest) GetScope() []string {
if m != nil {
return m.Scope
}
return nil
}
func (m *GetAccessTokenRequest) GetServiceAccountId() int64 {
if m != nil && m.ServiceAccountId != nil {
return *m.ServiceAccountId
}
return 0
}
func (m *GetAccessTokenRequest) GetServiceAccountName() string {
if m != nil && m.ServiceAccountName != nil {
return *m.ServiceAccountName
}
return ""
}
type GetAccessTokenResponse struct {
AccessToken *string `protobuf:"bytes,1,opt,name=access_token" json:"access_token,omitempty"`
ExpirationTime *int64 `protobuf:"varint,2,opt,name=expiration_time" json:"expiration_time,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetAccessTokenResponse) Reset() { *m = GetAccessTokenResponse{} }
func (m *GetAccessTokenResponse) String() string { return proto.CompactTextString(m) }
func (*GetAccessTokenResponse) ProtoMessage() {}
func (m *GetAccessTokenResponse) GetAccessToken() string {
if m != nil && m.AccessToken != nil {
return *m.AccessToken
}
return ""
}
func (m *GetAccessTokenResponse) GetExpirationTime() int64 {
if m != nil && m.ExpirationTime != nil {
return *m.ExpirationTime
}
return 0
}
type GetDefaultGcsBucketNameRequest struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *GetDefaultGcsBucketNameRequest) Reset() { *m = GetDefaultGcsBucketNameRequest{} }
func (m *GetDefaultGcsBucketNameRequest) String() string { return proto.CompactTextString(m) }
func (*GetDefaultGcsBucketNameRequest) ProtoMessage() {}
type GetDefaultGcsBucketNameResponse struct {
DefaultGcsBucketName *string `protobuf:"bytes,1,opt,name=default_gcs_bucket_name" json:"default_gcs_bucket_name,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetDefaultGcsBucketNameResponse) Reset() { *m = GetDefaultGcsBucketNameResponse{} }
func (m *GetDefaultGcsBucketNameResponse) String() string { return proto.CompactTextString(m) }
func (*GetDefaultGcsBucketNameResponse) ProtoMessage() {}
func (m *GetDefaultGcsBucketNameResponse) GetDefaultGcsBucketName() string {
if m != nil && m.DefaultGcsBucketName != nil {
return *m.DefaultGcsBucketName
}
return ""
}
func init() {
}

64
vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.proto generated vendored Normal file
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@ -0,0 +1,64 @@
syntax = "proto2";
option go_package = "app_identity";
package appengine;
message AppIdentityServiceError {
enum ErrorCode {
SUCCESS = 0;
UNKNOWN_SCOPE = 9;
BLOB_TOO_LARGE = 1000;
DEADLINE_EXCEEDED = 1001;
NOT_A_VALID_APP = 1002;
UNKNOWN_ERROR = 1003;
NOT_ALLOWED = 1005;
NOT_IMPLEMENTED = 1006;
}
}
message SignForAppRequest {
optional bytes bytes_to_sign = 1;
}
message SignForAppResponse {
optional string key_name = 1;
optional bytes signature_bytes = 2;
}
message GetPublicCertificateForAppRequest {
}
message PublicCertificate {
optional string key_name = 1;
optional string x509_certificate_pem = 2;
}
message GetPublicCertificateForAppResponse {
repeated PublicCertificate public_certificate_list = 1;
optional int64 max_client_cache_time_in_second = 2;
}
message GetServiceAccountNameRequest {
}
message GetServiceAccountNameResponse {
optional string service_account_name = 1;
}
message GetAccessTokenRequest {
repeated string scope = 1;
optional int64 service_account_id = 2;
optional string service_account_name = 3;
}
message GetAccessTokenResponse {
optional string access_token = 1;
optional int64 expiration_time = 2;
}
message GetDefaultGcsBucketNameRequest {
}
message GetDefaultGcsBucketNameResponse {
optional string default_gcs_bucket_name = 1;
}

133
vendor/google.golang.org/appengine/internal/base/api_base.pb.go generated vendored Normal file
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// Code generated by protoc-gen-go.
// source: google.golang.org/appengine/internal/base/api_base.proto
// DO NOT EDIT!
/*
Package base is a generated protocol buffer package.
It is generated from these files:
google.golang.org/appengine/internal/base/api_base.proto
It has these top-level messages:
StringProto
Integer32Proto
Integer64Proto
BoolProto
DoubleProto
BytesProto
VoidProto
*/
package base
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
type StringProto struct {
Value *string `protobuf:"bytes,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *StringProto) Reset() { *m = StringProto{} }
func (m *StringProto) String() string { return proto.CompactTextString(m) }
func (*StringProto) ProtoMessage() {}
func (m *StringProto) GetValue() string {
if m != nil && m.Value != nil {
return *m.Value
}
return ""
}
type Integer32Proto struct {
Value *int32 `protobuf:"varint,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *Integer32Proto) Reset() { *m = Integer32Proto{} }
func (m *Integer32Proto) String() string { return proto.CompactTextString(m) }
func (*Integer32Proto) ProtoMessage() {}
func (m *Integer32Proto) GetValue() int32 {
if m != nil && m.Value != nil {
return *m.Value
}
return 0
}
type Integer64Proto struct {
Value *int64 `protobuf:"varint,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *Integer64Proto) Reset() { *m = Integer64Proto{} }
func (m *Integer64Proto) String() string { return proto.CompactTextString(m) }
func (*Integer64Proto) ProtoMessage() {}
func (m *Integer64Proto) GetValue() int64 {
if m != nil && m.Value != nil {
return *m.Value
}
return 0
}
type BoolProto struct {
Value *bool `protobuf:"varint,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *BoolProto) Reset() { *m = BoolProto{} }
func (m *BoolProto) String() string { return proto.CompactTextString(m) }
func (*BoolProto) ProtoMessage() {}
func (m *BoolProto) GetValue() bool {
if m != nil && m.Value != nil {
return *m.Value
}
return false
}
type DoubleProto struct {
Value *float64 `protobuf:"fixed64,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *DoubleProto) Reset() { *m = DoubleProto{} }
func (m *DoubleProto) String() string { return proto.CompactTextString(m) }
func (*DoubleProto) ProtoMessage() {}
func (m *DoubleProto) GetValue() float64 {
if m != nil && m.Value != nil {
return *m.Value
}
return 0
}
type BytesProto struct {
Value []byte `protobuf:"bytes,1,req,name=value" json:"value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *BytesProto) Reset() { *m = BytesProto{} }
func (m *BytesProto) String() string { return proto.CompactTextString(m) }
func (*BytesProto) ProtoMessage() {}
func (m *BytesProto) GetValue() []byte {
if m != nil {
return m.Value
}
return nil
}
type VoidProto struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *VoidProto) Reset() { *m = VoidProto{} }
func (m *VoidProto) String() string { return proto.CompactTextString(m) }
func (*VoidProto) ProtoMessage() {}

33
vendor/google.golang.org/appengine/internal/base/api_base.proto generated vendored Normal file
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// Built-in base types for API calls. Primarily useful as return types.
syntax = "proto2";
option go_package = "base";
package appengine.base;
message StringProto {
required string value = 1;
}
message Integer32Proto {
required int32 value = 1;
}
message Integer64Proto {
required int64 value = 1;
}
message BoolProto {
required bool value = 1;
}
message DoubleProto {
required double value = 1;
}
message BytesProto {
required bytes value = 1 [ctype=CORD];
}
message VoidProto {
}

2778
vendor/google.golang.org/appengine/internal/datastore/datastore_v3.pb.go generated vendored Normal file
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541
vendor/google.golang.org/appengine/internal/datastore/datastore_v3.proto generated vendored Executable file
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syntax = "proto2";
option go_package = "datastore";
package appengine;
message Action{}
message PropertyValue {
optional int64 int64Value = 1;
optional bool booleanValue = 2;
optional string stringValue = 3;
optional double doubleValue = 4;
optional group PointValue = 5 {
required double x = 6;
required double y = 7;
}
optional group UserValue = 8 {
required string email = 9;
required string auth_domain = 10;
optional string nickname = 11;
optional string federated_identity = 21;
optional string federated_provider = 22;
}
optional group ReferenceValue = 12 {
required string app = 13;
optional string name_space = 20;
repeated group PathElement = 14 {
required string type = 15;
optional int64 id = 16;
optional string name = 17;
}
}
}
message Property {
enum Meaning {
NO_MEANING = 0;
BLOB = 14;
TEXT = 15;
BYTESTRING = 16;
ATOM_CATEGORY = 1;
ATOM_LINK = 2;
ATOM_TITLE = 3;
ATOM_CONTENT = 4;
ATOM_SUMMARY = 5;
ATOM_AUTHOR = 6;
GD_WHEN = 7;
GD_EMAIL = 8;
GEORSS_POINT = 9;
GD_IM = 10;
GD_PHONENUMBER = 11;
GD_POSTALADDRESS = 12;
GD_RATING = 13;
BLOBKEY = 17;
ENTITY_PROTO = 19;
INDEX_VALUE = 18;
};
optional Meaning meaning = 1 [default = NO_MEANING];
optional string meaning_uri = 2;
required string name = 3;
required PropertyValue value = 5;
required bool multiple = 4;
optional bool searchable = 6 [default=false];
enum FtsTokenizationOption {
HTML = 1;
ATOM = 2;
}
optional FtsTokenizationOption fts_tokenization_option = 8;
optional string locale = 9 [default = "en"];
}
message Path {
repeated group Element = 1 {
required string type = 2;
optional int64 id = 3;
optional string name = 4;
}
}
message Reference {
required string app = 13;
optional string name_space = 20;
required Path path = 14;
}
message User {
required string email = 1;
required string auth_domain = 2;
optional string nickname = 3;
optional string federated_identity = 6;
optional string federated_provider = 7;
}
message EntityProto {
required Reference key = 13;
required Path entity_group = 16;
optional User owner = 17;
enum Kind {
GD_CONTACT = 1;
GD_EVENT = 2;
GD_MESSAGE = 3;
}
optional Kind kind = 4;
optional string kind_uri = 5;
repeated Property property = 14;
repeated Property raw_property = 15;
optional int32 rank = 18;
}
message CompositeProperty {
required int64 index_id = 1;
repeated string value = 2;
}
message Index {
required string entity_type = 1;
required bool ancestor = 5;
repeated group Property = 2 {
required string name = 3;
enum Direction {
ASCENDING = 1;
DESCENDING = 2;
}
optional Direction direction = 4 [default = ASCENDING];
}
}
message CompositeIndex {
required string app_id = 1;
required int64 id = 2;
required Index definition = 3;
enum State {
WRITE_ONLY = 1;
READ_WRITE = 2;
DELETED = 3;
ERROR = 4;
}
required State state = 4;
optional bool only_use_if_required = 6 [default = false];
}
message IndexPostfix {
message IndexValue {
required string property_name = 1;
required PropertyValue value = 2;
}
repeated IndexValue index_value = 1;
optional Reference key = 2;
optional bool before = 3 [default=true];
}
message IndexPosition {
optional string key = 1;
optional bool before = 2 [default=true];
}
message Snapshot {
enum Status {
INACTIVE = 0;
ACTIVE = 1;
}
required int64 ts = 1;
}
message InternalHeader {
optional string qos = 1;
}
message Transaction {
optional InternalHeader header = 4;
required fixed64 handle = 1;
required string app = 2;
optional bool mark_changes = 3 [default = false];
}
message Query {
optional InternalHeader header = 39;
required string app = 1;
optional string name_space = 29;
optional string kind = 3;
optional Reference ancestor = 17;
repeated group Filter = 4 {
enum Operator {
LESS_THAN = 1;
LESS_THAN_OR_EQUAL = 2;
GREATER_THAN = 3;
GREATER_THAN_OR_EQUAL = 4;
EQUAL = 5;
IN = 6;
EXISTS = 7;
}
required Operator op = 6;
repeated Property property = 14;
}
optional string search_query = 8;
repeated group Order = 9 {
enum Direction {
ASCENDING = 1;
DESCENDING = 2;
}
required string property = 10;
optional Direction direction = 11 [default = ASCENDING];
}
enum Hint {
ORDER_FIRST = 1;
ANCESTOR_FIRST = 2;
FILTER_FIRST = 3;
}
optional Hint hint = 18;
optional int32 count = 23;
optional int32 offset = 12 [default = 0];
optional int32 limit = 16;
optional CompiledCursor compiled_cursor = 30;
optional CompiledCursor end_compiled_cursor = 31;
repeated CompositeIndex composite_index = 19;
optional bool require_perfect_plan = 20 [default = false];
optional bool keys_only = 21 [default = false];
optional Transaction transaction = 22;
optional bool compile = 25 [default = false];
optional int64 failover_ms = 26;
optional bool strong = 32;
repeated string property_name = 33;
repeated string group_by_property_name = 34;
optional bool distinct = 24;
optional int64 min_safe_time_seconds = 35;
repeated string safe_replica_name = 36;
optional bool persist_offset = 37 [default=false];
}
message CompiledQuery {
required group PrimaryScan = 1 {
optional string index_name = 2;
optional string start_key = 3;
optional bool start_inclusive = 4;
optional string end_key = 5;
optional bool end_inclusive = 6;
repeated string start_postfix_value = 22;
repeated string end_postfix_value = 23;
optional int64 end_unapplied_log_timestamp_us = 19;
}
repeated group MergeJoinScan = 7 {
required string index_name = 8;
repeated string prefix_value = 9;
optional bool value_prefix = 20 [default=false];
}
optional Index index_def = 21;
optional int32 offset = 10 [default = 0];
optional int32 limit = 11;
required bool keys_only = 12;
repeated string property_name = 24;
optional int32 distinct_infix_size = 25;
optional group EntityFilter = 13 {
optional bool distinct = 14 [default=false];
optional string kind = 17;
optional Reference ancestor = 18;
}
}
message CompiledCursor {
optional group Position = 2 {
optional string start_key = 27;
repeated group IndexValue = 29 {
optional string property = 30;
required PropertyValue value = 31;
}
optional Reference key = 32;
optional bool start_inclusive = 28 [default=true];
}
}
message Cursor {
required fixed64 cursor = 1;
optional string app = 2;
}
message Error {
enum ErrorCode {
BAD_REQUEST = 1;
CONCURRENT_TRANSACTION = 2;
INTERNAL_ERROR = 3;
NEED_INDEX = 4;
TIMEOUT = 5;
PERMISSION_DENIED = 6;
BIGTABLE_ERROR = 7;
COMMITTED_BUT_STILL_APPLYING = 8;
CAPABILITY_DISABLED = 9;
TRY_ALTERNATE_BACKEND = 10;
SAFE_TIME_TOO_OLD = 11;
}
}
message Cost {
optional int32 index_writes = 1;
optional int32 index_write_bytes = 2;
optional int32 entity_writes = 3;
optional int32 entity_write_bytes = 4;
optional group CommitCost = 5 {
optional int32 requested_entity_puts = 6;
optional int32 requested_entity_deletes = 7;
};
optional int32 approximate_storage_delta = 8;
optional int32 id_sequence_updates = 9;
}
message GetRequest {
optional InternalHeader header = 6;
repeated Reference key = 1;
optional Transaction transaction = 2;
optional int64 failover_ms = 3;
optional bool strong = 4;
optional bool allow_deferred = 5 [default=false];
}
message GetResponse {
repeated group Entity = 1 {
optional EntityProto entity = 2;
optional Reference key = 4;
optional int64 version = 3;
}
repeated Reference deferred = 5;
optional bool in_order = 6 [default=true];
}
message PutRequest {
optional InternalHeader header = 11;
repeated EntityProto entity = 1;
optional Transaction transaction = 2;
repeated CompositeIndex composite_index = 3;
optional bool trusted = 4 [default = false];
optional bool force = 7 [default = false];
optional bool mark_changes = 8 [default = false];
repeated Snapshot snapshot = 9;
enum AutoIdPolicy {
CURRENT = 0;
SEQUENTIAL = 1;
}
optional AutoIdPolicy auto_id_policy = 10 [default = CURRENT];
}
message PutResponse {
repeated Reference key = 1;
optional Cost cost = 2;
repeated int64 version = 3;
}
message TouchRequest {
optional InternalHeader header = 10;
repeated Reference key = 1;
repeated CompositeIndex composite_index = 2;
optional bool force = 3 [default = false];
repeated Snapshot snapshot = 9;
}
message TouchResponse {
optional Cost cost = 1;
}
message DeleteRequest {
optional InternalHeader header = 10;
repeated Reference key = 6;
optional Transaction transaction = 5;
optional bool trusted = 4 [default = false];
optional bool force = 7 [default = false];
optional bool mark_changes = 8 [default = false];
repeated Snapshot snapshot = 9;
}
message DeleteResponse {
optional Cost cost = 1;
repeated int64 version = 3;
}
message NextRequest {
optional InternalHeader header = 5;
required Cursor cursor = 1;
optional int32 count = 2;
optional int32 offset = 4 [default = 0];
optional bool compile = 3 [default = false];
}
message QueryResult {
optional Cursor cursor = 1;
repeated EntityProto result = 2;
optional int32 skipped_results = 7;
required bool more_results = 3;
optional bool keys_only = 4;
optional bool index_only = 9;
optional bool small_ops = 10;
optional CompiledQuery compiled_query = 5;
optional CompiledCursor compiled_cursor = 6;
repeated CompositeIndex index = 8;
repeated int64 version = 11;
}
message AllocateIdsRequest {
optional InternalHeader header = 4;
optional Reference model_key = 1;
optional int64 size = 2;
optional int64 max = 3;
repeated Reference reserve = 5;
}
message AllocateIdsResponse {
required int64 start = 1;
required int64 end = 2;
optional Cost cost = 3;
}
message CompositeIndices {
repeated CompositeIndex index = 1;
}
message AddActionsRequest {
optional InternalHeader header = 3;
required Transaction transaction = 1;
repeated Action action = 2;
}
message AddActionsResponse {
}
message BeginTransactionRequest {
optional InternalHeader header = 3;
required string app = 1;
optional bool allow_multiple_eg = 2 [default = false];
}
message CommitResponse {
optional Cost cost = 1;
repeated group Version = 3 {
required Reference root_entity_key = 4;
required int64 version = 5;
}
}

14
vendor/google.golang.org/appengine/internal/identity.go generated vendored Normal file
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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package internal
import netcontext "golang.org/x/net/context"
// These functions are implementations of the wrapper functions
// in ../appengine/identity.go. See that file for commentary.
func AppID(c netcontext.Context) string {
return appID(FullyQualifiedAppID(c))
}

27
vendor/google.golang.org/appengine/internal/identity_classic.go generated vendored Normal file
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// Copyright 2015 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// +build appengine
package internal
import (
"appengine"
netcontext "golang.org/x/net/context"
)
func DefaultVersionHostname(ctx netcontext.Context) string {
return appengine.DefaultVersionHostname(fromContext(ctx))
}
func RequestID(ctx netcontext.Context) string { return appengine.RequestID(fromContext(ctx)) }
func Datacenter(_ netcontext.Context) string { return appengine.Datacenter() }
func ServerSoftware() string { return appengine.ServerSoftware() }
func ModuleName(ctx netcontext.Context) string { return appengine.ModuleName(fromContext(ctx)) }
func VersionID(ctx netcontext.Context) string { return appengine.VersionID(fromContext(ctx)) }
func InstanceID() string { return appengine.InstanceID() }
func IsDevAppServer() bool { return appengine.IsDevAppServer() }
func fullyQualifiedAppID(ctx netcontext.Context) string { return fromContext(ctx).FullyQualifiedAppID() }

97
vendor/google.golang.org/appengine/internal/identity_vm.go generated vendored Normal file
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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// +build !appengine
package internal
import (
"net/http"
"os"
netcontext "golang.org/x/net/context"
)
// These functions are implementations of the wrapper functions
// in ../appengine/identity.go. See that file for commentary.
const (
hDefaultVersionHostname = "X-AppEngine-Default-Version-Hostname"
hRequestLogId = "X-AppEngine-Request-Log-Id"
hDatacenter = "X-AppEngine-Datacenter"
)
func ctxHeaders(ctx netcontext.Context) http.Header {
return fromContext(ctx).Request().Header
}
func DefaultVersionHostname(ctx netcontext.Context) string {
return ctxHeaders(ctx).Get(hDefaultVersionHostname)
}
func RequestID(ctx netcontext.Context) string {
return ctxHeaders(ctx).Get(hRequestLogId)
}
func Datacenter(ctx netcontext.Context) string {
return ctxHeaders(ctx).Get(hDatacenter)
}
func ServerSoftware() string {
// TODO(dsymonds): Remove fallback when we've verified this.
if s := os.Getenv("SERVER_SOFTWARE"); s != "" {
return s
}
return "Google App Engine/1.x.x"
}
// TODO(dsymonds): Remove the metadata fetches.
func ModuleName(_ netcontext.Context) string {
if s := os.Getenv("GAE_MODULE_NAME"); s != "" {
return s
}
return string(mustGetMetadata("instance/attributes/gae_backend_name"))
}
func VersionID(_ netcontext.Context) string {
if s1, s2 := os.Getenv("GAE_MODULE_VERSION"), os.Getenv("GAE_MINOR_VERSION"); s1 != "" && s2 != "" {
return s1 + "." + s2
}
return string(mustGetMetadata("instance/attributes/gae_backend_version")) + "." + string(mustGetMetadata("instance/attributes/gae_backend_minor_version"))
}
func InstanceID() string {
if s := os.Getenv("GAE_MODULE_INSTANCE"); s != "" {
return s
}
return string(mustGetMetadata("instance/attributes/gae_backend_instance"))
}
func partitionlessAppID() string {
// gae_project has everything except the partition prefix.
appID := os.Getenv("GAE_LONG_APP_ID")
if appID == "" {
appID = string(mustGetMetadata("instance/attributes/gae_project"))
}
return appID
}
func fullyQualifiedAppID(_ netcontext.Context) string {
appID := partitionlessAppID()
part := os.Getenv("GAE_PARTITION")
if part == "" {
part = string(mustGetMetadata("instance/attributes/gae_partition"))
}
if part != "" {
appID = part + "~" + appID
}
return appID
}
func IsDevAppServer() bool {
return os.Getenv("RUN_WITH_DEVAPPSERVER") != ""
}

110
vendor/google.golang.org/appengine/internal/internal.go generated vendored Normal file
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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// Package internal provides support for package appengine.
//
// Programs should not use this package directly. Its API is not stable.
// Use packages appengine and appengine/* instead.
package internal
import (
"fmt"
"github.com/golang/protobuf/proto"
remotepb "google.golang.org/appengine/internal/remote_api"
)
// errorCodeMaps is a map of service name to the error code map for the service.
var errorCodeMaps = make(map[string]map[int32]string)
// RegisterErrorCodeMap is called from API implementations to register their
// error code map. This should only be called from init functions.
func RegisterErrorCodeMap(service string, m map[int32]string) {
errorCodeMaps[service] = m
}
type timeoutCodeKey struct {
service string
code int32
}
// timeoutCodes is the set of service+code pairs that represent timeouts.
var timeoutCodes = make(map[timeoutCodeKey]bool)
func RegisterTimeoutErrorCode(service string, code int32) {
timeoutCodes[timeoutCodeKey{service, code}] = true
}
// APIError is the type returned by appengine.Context's Call method
// when an API call fails in an API-specific way. This may be, for instance,
// a taskqueue API call failing with TaskQueueServiceError::UNKNOWN_QUEUE.
type APIError struct {
Service string
Detail string
Code int32 // API-specific error code
}
func (e *APIError) Error() string {
if e.Code == 0 {
if e.Detail == "" {
return "APIError <empty>"
}
return e.Detail
}
s := fmt.Sprintf("API error %d", e.Code)
if m, ok := errorCodeMaps[e.Service]; ok {
s += " (" + e.Service + ": " + m[e.Code] + ")"
} else {
// Shouldn't happen, but provide a bit more detail if it does.
s = e.Service + " " + s
}
if e.Detail != "" {
s += ": " + e.Detail
}
return s
}
func (e *APIError) IsTimeout() bool {
return timeoutCodes[timeoutCodeKey{e.Service, e.Code}]
}
// CallError is the type returned by appengine.Context's Call method when an
// API call fails in a generic way, such as RpcError::CAPABILITY_DISABLED.
type CallError struct {
Detail string
Code int32
// TODO: Remove this if we get a distinguishable error code.
Timeout bool
}
func (e *CallError) Error() string {
var msg string
switch remotepb.RpcError_ErrorCode(e.Code) {
case remotepb.RpcError_UNKNOWN:
return e.Detail
case remotepb.RpcError_OVER_QUOTA:
msg = "Over quota"
case remotepb.RpcError_CAPABILITY_DISABLED:
msg = "Capability disabled"
case remotepb.RpcError_CANCELLED:
msg = "Canceled"
default:
msg = fmt.Sprintf("Call error %d", e.Code)
}
s := msg + ": " + e.Detail
if e.Timeout {
s += " (timeout)"
}
return s
}
func (e *CallError) IsTimeout() bool {
return e.Timeout
}
// NamespaceMods is a map from API service to a function that will mutate an RPC request to attach a namespace.
// The function should be prepared to be called on the same message more than once; it should only modify the
// RPC request the first time.
var NamespaceMods = make(map[string]func(m proto.Message, namespace string))

899
vendor/google.golang.org/appengine/internal/log/log_service.pb.go generated vendored Normal file
View File

@ -0,0 +1,899 @@
// Code generated by protoc-gen-go.
// source: google.golang.org/appengine/internal/log/log_service.proto
// DO NOT EDIT!
/*
Package log is a generated protocol buffer package.
It is generated from these files:
google.golang.org/appengine/internal/log/log_service.proto
It has these top-level messages:
LogServiceError
UserAppLogLine
UserAppLogGroup
FlushRequest
SetStatusRequest
LogOffset
LogLine
RequestLog
LogModuleVersion
LogReadRequest
LogReadResponse
LogUsageRecord
LogUsageRequest
LogUsageResponse
*/
package log
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
type LogServiceError_ErrorCode int32
const (
LogServiceError_OK LogServiceError_ErrorCode = 0
LogServiceError_INVALID_REQUEST LogServiceError_ErrorCode = 1
LogServiceError_STORAGE_ERROR LogServiceError_ErrorCode = 2
)
var LogServiceError_ErrorCode_name = map[int32]string{
0: "OK",
1: "INVALID_REQUEST",
2: "STORAGE_ERROR",
}
var LogServiceError_ErrorCode_value = map[string]int32{
"OK": 0,
"INVALID_REQUEST": 1,
"STORAGE_ERROR": 2,
}
func (x LogServiceError_ErrorCode) Enum() *LogServiceError_ErrorCode {
p := new(LogServiceError_ErrorCode)
*p = x
return p
}
func (x LogServiceError_ErrorCode) String() string {
return proto.EnumName(LogServiceError_ErrorCode_name, int32(x))
}
func (x *LogServiceError_ErrorCode) UnmarshalJSON(data []byte) error {
value, err := proto.UnmarshalJSONEnum(LogServiceError_ErrorCode_value, data, "LogServiceError_ErrorCode")
if err != nil {
return err
}
*x = LogServiceError_ErrorCode(value)
return nil
}
type LogServiceError struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *LogServiceError) Reset() { *m = LogServiceError{} }
func (m *LogServiceError) String() string { return proto.CompactTextString(m) }
func (*LogServiceError) ProtoMessage() {}
type UserAppLogLine struct {
TimestampUsec *int64 `protobuf:"varint,1,req,name=timestamp_usec" json:"timestamp_usec,omitempty"`
Level *int64 `protobuf:"varint,2,req,name=level" json:"level,omitempty"`
Message *string `protobuf:"bytes,3,req,name=message" json:"message,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *UserAppLogLine) Reset() { *m = UserAppLogLine{} }
func (m *UserAppLogLine) String() string { return proto.CompactTextString(m) }
func (*UserAppLogLine) ProtoMessage() {}
func (m *UserAppLogLine) GetTimestampUsec() int64 {
if m != nil && m.TimestampUsec != nil {
return *m.TimestampUsec
}
return 0
}
func (m *UserAppLogLine) GetLevel() int64 {
if m != nil && m.Level != nil {
return *m.Level
}
return 0
}
func (m *UserAppLogLine) GetMessage() string {
if m != nil && m.Message != nil {
return *m.Message
}
return ""
}
type UserAppLogGroup struct {
LogLine []*UserAppLogLine `protobuf:"bytes,2,rep,name=log_line" json:"log_line,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *UserAppLogGroup) Reset() { *m = UserAppLogGroup{} }
func (m *UserAppLogGroup) String() string { return proto.CompactTextString(m) }
func (*UserAppLogGroup) ProtoMessage() {}
func (m *UserAppLogGroup) GetLogLine() []*UserAppLogLine {
if m != nil {
return m.LogLine
}
return nil
}
type FlushRequest struct {
Logs []byte `protobuf:"bytes,1,opt,name=logs" json:"logs,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *FlushRequest) Reset() { *m = FlushRequest{} }
func (m *FlushRequest) String() string { return proto.CompactTextString(m) }
func (*FlushRequest) ProtoMessage() {}
func (m *FlushRequest) GetLogs() []byte {
if m != nil {
return m.Logs
}
return nil
}
type SetStatusRequest struct {
Status *string `protobuf:"bytes,1,req,name=status" json:"status,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *SetStatusRequest) Reset() { *m = SetStatusRequest{} }
func (m *SetStatusRequest) String() string { return proto.CompactTextString(m) }
func (*SetStatusRequest) ProtoMessage() {}
func (m *SetStatusRequest) GetStatus() string {
if m != nil && m.Status != nil {
return *m.Status
}
return ""
}
type LogOffset struct {
RequestId []byte `protobuf:"bytes,1,opt,name=request_id" json:"request_id,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *LogOffset) Reset() { *m = LogOffset{} }
func (m *LogOffset) String() string { return proto.CompactTextString(m) }
func (*LogOffset) ProtoMessage() {}
func (m *LogOffset) GetRequestId() []byte {
if m != nil {
return m.RequestId
}
return nil
}
type LogLine struct {
Time *int64 `protobuf:"varint,1,req,name=time" json:"time,omitempty"`
Level *int32 `protobuf:"varint,2,req,name=level" json:"level,omitempty"`
LogMessage *string `protobuf:"bytes,3,req,name=log_message" json:"log_message,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *LogLine) Reset() { *m = LogLine{} }
func (m *LogLine) String() string { return proto.CompactTextString(m) }
func (*LogLine) ProtoMessage() {}
func (m *LogLine) GetTime() int64 {
if m != nil && m.Time != nil {
return *m.Time
}
return 0
}
func (m *LogLine) GetLevel() int32 {
if m != nil && m.Level != nil {
return *m.Level
}
return 0
}
func (m *LogLine) GetLogMessage() string {
if m != nil && m.LogMessage != nil {
return *m.LogMessage
}
return ""
}
type RequestLog struct {
AppId *string `protobuf:"bytes,1,req,name=app_id" json:"app_id,omitempty"`
ModuleId *string `protobuf:"bytes,37,opt,name=module_id,def=default" json:"module_id,omitempty"`
VersionId *string `protobuf:"bytes,2,req,name=version_id" json:"version_id,omitempty"`
RequestId []byte `protobuf:"bytes,3,req,name=request_id" json:"request_id,omitempty"`
Offset *LogOffset `protobuf:"bytes,35,opt,name=offset" json:"offset,omitempty"`
Ip *string `protobuf:"bytes,4,req,name=ip" json:"ip,omitempty"`
Nickname *string `protobuf:"bytes,5,opt,name=nickname" json:"nickname,omitempty"`
StartTime *int64 `protobuf:"varint,6,req,name=start_time" json:"start_time,omitempty"`
EndTime *int64 `protobuf:"varint,7,req,name=end_time" json:"end_time,omitempty"`
Latency *int64 `protobuf:"varint,8,req,name=latency" json:"latency,omitempty"`
Mcycles *int64 `protobuf:"varint,9,req,name=mcycles" json:"mcycles,omitempty"`
Method *string `protobuf:"bytes,10,req,name=method" json:"method,omitempty"`
Resource *string `protobuf:"bytes,11,req,name=resource" json:"resource,omitempty"`
HttpVersion *string `protobuf:"bytes,12,req,name=http_version" json:"http_version,omitempty"`
Status *int32 `protobuf:"varint,13,req,name=status" json:"status,omitempty"`
ResponseSize *int64 `protobuf:"varint,14,req,name=response_size" json:"response_size,omitempty"`
Referrer *string `protobuf:"bytes,15,opt,name=referrer" json:"referrer,omitempty"`
UserAgent *string `protobuf:"bytes,16,opt,name=user_agent" json:"user_agent,omitempty"`
UrlMapEntry *string `protobuf:"bytes,17,req,name=url_map_entry" json:"url_map_entry,omitempty"`
Combined *string `protobuf:"bytes,18,req,name=combined" json:"combined,omitempty"`
ApiMcycles *int64 `protobuf:"varint,19,opt,name=api_mcycles" json:"api_mcycles,omitempty"`
Host *string `protobuf:"bytes,20,opt,name=host" json:"host,omitempty"`
Cost *float64 `protobuf:"fixed64,21,opt,name=cost" json:"cost,omitempty"`
TaskQueueName *string `protobuf:"bytes,22,opt,name=task_queue_name" json:"task_queue_name,omitempty"`
TaskName *string `protobuf:"bytes,23,opt,name=task_name" json:"task_name,omitempty"`
WasLoadingRequest *bool `protobuf:"varint,24,opt,name=was_loading_request" json:"was_loading_request,omitempty"`
PendingTime *int64 `protobuf:"varint,25,opt,name=pending_time" json:"pending_time,omitempty"`
ReplicaIndex *int32 `protobuf:"varint,26,opt,name=replica_index,def=-1" json:"replica_index,omitempty"`
Finished *bool `protobuf:"varint,27,opt,name=finished,def=1" json:"finished,omitempty"`
CloneKey []byte `protobuf:"bytes,28,opt,name=clone_key" json:"clone_key,omitempty"`
Line []*LogLine `protobuf:"bytes,29,rep,name=line" json:"line,omitempty"`
LinesIncomplete *bool `protobuf:"varint,36,opt,name=lines_incomplete" json:"lines_incomplete,omitempty"`
AppEngineRelease []byte `protobuf:"bytes,38,opt,name=app_engine_release" json:"app_engine_release,omitempty"`
ExitReason *int32 `protobuf:"varint,30,opt,name=exit_reason" json:"exit_reason,omitempty"`
WasThrottledForTime *bool `protobuf:"varint,31,opt,name=was_throttled_for_time" json:"was_throttled_for_time,omitempty"`
WasThrottledForRequests *bool `protobuf:"varint,32,opt,name=was_throttled_for_requests" json:"was_throttled_for_requests,omitempty"`
ThrottledTime *int64 `protobuf:"varint,33,opt,name=throttled_time" json:"throttled_time,omitempty"`
ServerName []byte `protobuf:"bytes,34,opt,name=server_name" json:"server_name,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *RequestLog) Reset() { *m = RequestLog{} }
func (m *RequestLog) String() string { return proto.CompactTextString(m) }
func (*RequestLog) ProtoMessage() {}
const Default_RequestLog_ModuleId string = "default"
const Default_RequestLog_ReplicaIndex int32 = -1
const Default_RequestLog_Finished bool = true
func (m *RequestLog) GetAppId() string {
if m != nil && m.AppId != nil {
return *m.AppId
}
return ""
}
func (m *RequestLog) GetModuleId() string {
if m != nil && m.ModuleId != nil {
return *m.ModuleId
}
return Default_RequestLog_ModuleId
}
func (m *RequestLog) GetVersionId() string {
if m != nil && m.VersionId != nil {
return *m.VersionId
}
return ""
}
func (m *RequestLog) GetRequestId() []byte {
if m != nil {
return m.RequestId
}
return nil
}
func (m *RequestLog) GetOffset() *LogOffset {
if m != nil {
return m.Offset
}
return nil
}
func (m *RequestLog) GetIp() string {
if m != nil && m.Ip != nil {
return *m.Ip
}
return ""
}
func (m *RequestLog) GetNickname() string {
if m != nil && m.Nickname != nil {
return *m.Nickname
}
return ""
}
func (m *RequestLog) GetStartTime() int64 {
if m != nil && m.StartTime != nil {
return *m.StartTime
}
return 0
}
func (m *RequestLog) GetEndTime() int64 {
if m != nil && m.EndTime != nil {
return *m.EndTime
}
return 0
}
func (m *RequestLog) GetLatency() int64 {
if m != nil && m.Latency != nil {
return *m.Latency
}
return 0
}
func (m *RequestLog) GetMcycles() int64 {
if m != nil && m.Mcycles != nil {
return *m.Mcycles
}
return 0
}
func (m *RequestLog) GetMethod() string {
if m != nil && m.Method != nil {
return *m.Method
}
return ""
}
func (m *RequestLog) GetResource() string {
if m != nil && m.Resource != nil {
return *m.Resource
}
return ""
}
func (m *RequestLog) GetHttpVersion() string {
if m != nil && m.HttpVersion != nil {
return *m.HttpVersion
}
return ""
}
func (m *RequestLog) GetStatus() int32 {
if m != nil && m.Status != nil {
return *m.Status
}
return 0
}
func (m *RequestLog) GetResponseSize() int64 {
if m != nil && m.ResponseSize != nil {
return *m.ResponseSize
}
return 0
}
func (m *RequestLog) GetReferrer() string {
if m != nil && m.Referrer != nil {
return *m.Referrer
}
return ""
}
func (m *RequestLog) GetUserAgent() string {
if m != nil && m.UserAgent != nil {
return *m.UserAgent
}
return ""
}
func (m *RequestLog) GetUrlMapEntry() string {
if m != nil && m.UrlMapEntry != nil {
return *m.UrlMapEntry
}
return ""
}
func (m *RequestLog) GetCombined() string {
if m != nil && m.Combined != nil {
return *m.Combined
}
return ""
}
func (m *RequestLog) GetApiMcycles() int64 {
if m != nil && m.ApiMcycles != nil {
return *m.ApiMcycles
}
return 0
}
func (m *RequestLog) GetHost() string {
if m != nil && m.Host != nil {
return *m.Host
}
return ""
}
func (m *RequestLog) GetCost() float64 {
if m != nil && m.Cost != nil {
return *m.Cost
}
return 0
}
func (m *RequestLog) GetTaskQueueName() string {
if m != nil && m.TaskQueueName != nil {
return *m.TaskQueueName
}
return ""
}
func (m *RequestLog) GetTaskName() string {
if m != nil && m.TaskName != nil {
return *m.TaskName
}
return ""
}
func (m *RequestLog) GetWasLoadingRequest() bool {
if m != nil && m.WasLoadingRequest != nil {
return *m.WasLoadingRequest
}
return false
}
func (m *RequestLog) GetPendingTime() int64 {
if m != nil && m.PendingTime != nil {
return *m.PendingTime
}
return 0
}
func (m *RequestLog) GetReplicaIndex() int32 {
if m != nil && m.ReplicaIndex != nil {
return *m.ReplicaIndex
}
return Default_RequestLog_ReplicaIndex
}
func (m *RequestLog) GetFinished() bool {
if m != nil && m.Finished != nil {
return *m.Finished
}
return Default_RequestLog_Finished
}
func (m *RequestLog) GetCloneKey() []byte {
if m != nil {
return m.CloneKey
}
return nil
}
func (m *RequestLog) GetLine() []*LogLine {
if m != nil {
return m.Line
}
return nil
}
func (m *RequestLog) GetLinesIncomplete() bool {
if m != nil && m.LinesIncomplete != nil {
return *m.LinesIncomplete
}
return false
}
func (m *RequestLog) GetAppEngineRelease() []byte {
if m != nil {
return m.AppEngineRelease
}
return nil
}
func (m *RequestLog) GetExitReason() int32 {
if m != nil && m.ExitReason != nil {
return *m.ExitReason
}
return 0
}
func (m *RequestLog) GetWasThrottledForTime() bool {
if m != nil && m.WasThrottledForTime != nil {
return *m.WasThrottledForTime
}
return false
}
func (m *RequestLog) GetWasThrottledForRequests() bool {
if m != nil && m.WasThrottledForRequests != nil {
return *m.WasThrottledForRequests
}
return false
}
func (m *RequestLog) GetThrottledTime() int64 {
if m != nil && m.ThrottledTime != nil {
return *m.ThrottledTime
}
return 0
}
func (m *RequestLog) GetServerName() []byte {
if m != nil {
return m.ServerName
}
return nil
}
type LogModuleVersion struct {
ModuleId *string `protobuf:"bytes,1,opt,name=module_id,def=default" json:"module_id,omitempty"`
VersionId *string `protobuf:"bytes,2,opt,name=version_id" json:"version_id,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *LogModuleVersion) Reset() { *m = LogModuleVersion{} }
func (m *LogModuleVersion) String() string { return proto.CompactTextString(m) }
func (*LogModuleVersion) ProtoMessage() {}
const Default_LogModuleVersion_ModuleId string = "default"
func (m *LogModuleVersion) GetModuleId() string {
if m != nil && m.ModuleId != nil {
return *m.ModuleId
}
return Default_LogModuleVersion_ModuleId
}
func (m *LogModuleVersion) GetVersionId() string {
if m != nil && m.VersionId != nil {
return *m.VersionId
}
return ""
}
type LogReadRequest struct {
AppId *string `protobuf:"bytes,1,req,name=app_id" json:"app_id,omitempty"`
VersionId []string `protobuf:"bytes,2,rep,name=version_id" json:"version_id,omitempty"`
ModuleVersion []*LogModuleVersion `protobuf:"bytes,19,rep,name=module_version" json:"module_version,omitempty"`
StartTime *int64 `protobuf:"varint,3,opt,name=start_time" json:"start_time,omitempty"`
EndTime *int64 `protobuf:"varint,4,opt,name=end_time" json:"end_time,omitempty"`
Offset *LogOffset `protobuf:"bytes,5,opt,name=offset" json:"offset,omitempty"`
RequestId [][]byte `protobuf:"bytes,6,rep,name=request_id" json:"request_id,omitempty"`
MinimumLogLevel *int32 `protobuf:"varint,7,opt,name=minimum_log_level" json:"minimum_log_level,omitempty"`
IncludeIncomplete *bool `protobuf:"varint,8,opt,name=include_incomplete" json:"include_incomplete,omitempty"`
Count *int64 `protobuf:"varint,9,opt,name=count" json:"count,omitempty"`
CombinedLogRegex *string `protobuf:"bytes,14,opt,name=combined_log_regex" json:"combined_log_regex,omitempty"`
HostRegex *string `protobuf:"bytes,15,opt,name=host_regex" json:"host_regex,omitempty"`
ReplicaIndex *int32 `protobuf:"varint,16,opt,name=replica_index" json:"replica_index,omitempty"`
IncludeAppLogs *bool `protobuf:"varint,10,opt,name=include_app_logs" json:"include_app_logs,omitempty"`
AppLogsPerRequest *int32 `protobuf:"varint,17,opt,name=app_logs_per_request" json:"app_logs_per_request,omitempty"`
IncludeHost *bool `protobuf:"varint,11,opt,name=include_host" json:"include_host,omitempty"`
IncludeAll *bool `protobuf:"varint,12,opt,name=include_all" json:"include_all,omitempty"`
CacheIterator *bool `protobuf:"varint,13,opt,name=cache_iterator" json:"cache_iterator,omitempty"`
NumShards *int32 `protobuf:"varint,18,opt,name=num_shards" json:"num_shards,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *LogReadRequest) Reset() { *m = LogReadRequest{} }
func (m *LogReadRequest) String() string { return proto.CompactTextString(m) }
func (*LogReadRequest) ProtoMessage() {}
func (m *LogReadRequest) GetAppId() string {
if m != nil && m.AppId != nil {
return *m.AppId
}
return ""
}
func (m *LogReadRequest) GetVersionId() []string {
if m != nil {
return m.VersionId
}
return nil
}
func (m *LogReadRequest) GetModuleVersion() []*LogModuleVersion {
if m != nil {
return m.ModuleVersion
}
return nil
}
func (m *LogReadRequest) GetStartTime() int64 {
if m != nil && m.StartTime != nil {
return *m.StartTime
}
return 0
}
func (m *LogReadRequest) GetEndTime() int64 {
if m != nil && m.EndTime != nil {
return *m.EndTime
}
return 0
}
func (m *LogReadRequest) GetOffset() *LogOffset {
if m != nil {
return m.Offset
}
return nil
}
func (m *LogReadRequest) GetRequestId() [][]byte {
if m != nil {
return m.RequestId
}
return nil
}
func (m *LogReadRequest) GetMinimumLogLevel() int32 {
if m != nil && m.MinimumLogLevel != nil {
return *m.MinimumLogLevel
}
return 0
}
func (m *LogReadRequest) GetIncludeIncomplete() bool {
if m != nil && m.IncludeIncomplete != nil {
return *m.IncludeIncomplete
}
return false
}
func (m *LogReadRequest) GetCount() int64 {
if m != nil && m.Count != nil {
return *m.Count
}
return 0
}
func (m *LogReadRequest) GetCombinedLogRegex() string {
if m != nil && m.CombinedLogRegex != nil {
return *m.CombinedLogRegex
}
return ""
}
func (m *LogReadRequest) GetHostRegex() string {
if m != nil && m.HostRegex != nil {
return *m.HostRegex
}
return ""
}
func (m *LogReadRequest) GetReplicaIndex() int32 {
if m != nil && m.ReplicaIndex != nil {
return *m.ReplicaIndex
}
return 0
}
func (m *LogReadRequest) GetIncludeAppLogs() bool {
if m != nil && m.IncludeAppLogs != nil {
return *m.IncludeAppLogs
}
return false
}
func (m *LogReadRequest) GetAppLogsPerRequest() int32 {
if m != nil && m.AppLogsPerRequest != nil {
return *m.AppLogsPerRequest
}
return 0
}
func (m *LogReadRequest) GetIncludeHost() bool {
if m != nil && m.IncludeHost != nil {
return *m.IncludeHost
}
return false
}
func (m *LogReadRequest) GetIncludeAll() bool {
if m != nil && m.IncludeAll != nil {
return *m.IncludeAll
}
return false
}
func (m *LogReadRequest) GetCacheIterator() bool {
if m != nil && m.CacheIterator != nil {
return *m.CacheIterator
}
return false
}
func (m *LogReadRequest) GetNumShards() int32 {
if m != nil && m.NumShards != nil {
return *m.NumShards
}
return 0
}
type LogReadResponse struct {
Log []*RequestLog `protobuf:"bytes,1,rep,name=log" json:"log,omitempty"`
Offset *LogOffset `protobuf:"bytes,2,opt,name=offset" json:"offset,omitempty"`
LastEndTime *int64 `protobuf:"varint,3,opt,name=last_end_time" json:"last_end_time,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *LogReadResponse) Reset() { *m = LogReadResponse{} }
func (m *LogReadResponse) String() string { return proto.CompactTextString(m) }
func (*LogReadResponse) ProtoMessage() {}
func (m *LogReadResponse) GetLog() []*RequestLog {
if m != nil {
return m.Log
}
return nil
}
func (m *LogReadResponse) GetOffset() *LogOffset {
if m != nil {
return m.Offset
}
return nil
}
func (m *LogReadResponse) GetLastEndTime() int64 {
if m != nil && m.LastEndTime != nil {
return *m.LastEndTime
}
return 0
}
type LogUsageRecord struct {
VersionId *string `protobuf:"bytes,1,opt,name=version_id" json:"version_id,omitempty"`
StartTime *int32 `protobuf:"varint,2,opt,name=start_time" json:"start_time,omitempty"`
EndTime *int32 `protobuf:"varint,3,opt,name=end_time" json:"end_time,omitempty"`
Count *int64 `protobuf:"varint,4,opt,name=count" json:"count,omitempty"`
TotalSize *int64 `protobuf:"varint,5,opt,name=total_size" json:"total_size,omitempty"`
Records *int32 `protobuf:"varint,6,opt,name=records" json:"records,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *LogUsageRecord) Reset() { *m = LogUsageRecord{} }
func (m *LogUsageRecord) String() string { return proto.CompactTextString(m) }
func (*LogUsageRecord) ProtoMessage() {}
func (m *LogUsageRecord) GetVersionId() string {
if m != nil && m.VersionId != nil {
return *m.VersionId
}
return ""
}
func (m *LogUsageRecord) GetStartTime() int32 {
if m != nil && m.StartTime != nil {
return *m.StartTime
}
return 0
}
func (m *LogUsageRecord) GetEndTime() int32 {
if m != nil && m.EndTime != nil {
return *m.EndTime
}
return 0
}
func (m *LogUsageRecord) GetCount() int64 {
if m != nil && m.Count != nil {
return *m.Count
}
return 0
}
func (m *LogUsageRecord) GetTotalSize() int64 {
if m != nil && m.TotalSize != nil {
return *m.TotalSize
}
return 0
}
func (m *LogUsageRecord) GetRecords() int32 {
if m != nil && m.Records != nil {
return *m.Records
}
return 0
}
type LogUsageRequest struct {
AppId *string `protobuf:"bytes,1,req,name=app_id" json:"app_id,omitempty"`
VersionId []string `protobuf:"bytes,2,rep,name=version_id" json:"version_id,omitempty"`
StartTime *int32 `protobuf:"varint,3,opt,name=start_time" json:"start_time,omitempty"`
EndTime *int32 `protobuf:"varint,4,opt,name=end_time" json:"end_time,omitempty"`
ResolutionHours *uint32 `protobuf:"varint,5,opt,name=resolution_hours,def=1" json:"resolution_hours,omitempty"`
CombineVersions *bool `protobuf:"varint,6,opt,name=combine_versions" json:"combine_versions,omitempty"`
UsageVersion *int32 `protobuf:"varint,7,opt,name=usage_version" json:"usage_version,omitempty"`
VersionsOnly *bool `protobuf:"varint,8,opt,name=versions_only" json:"versions_only,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *LogUsageRequest) Reset() { *m = LogUsageRequest{} }
func (m *LogUsageRequest) String() string { return proto.CompactTextString(m) }
func (*LogUsageRequest) ProtoMessage() {}
const Default_LogUsageRequest_ResolutionHours uint32 = 1
func (m *LogUsageRequest) GetAppId() string {
if m != nil && m.AppId != nil {
return *m.AppId
}
return ""
}
func (m *LogUsageRequest) GetVersionId() []string {
if m != nil {
return m.VersionId
}
return nil
}
func (m *LogUsageRequest) GetStartTime() int32 {
if m != nil && m.StartTime != nil {
return *m.StartTime
}
return 0
}
func (m *LogUsageRequest) GetEndTime() int32 {
if m != nil && m.EndTime != nil {
return *m.EndTime
}
return 0
}
func (m *LogUsageRequest) GetResolutionHours() uint32 {
if m != nil && m.ResolutionHours != nil {
return *m.ResolutionHours
}
return Default_LogUsageRequest_ResolutionHours
}
func (m *LogUsageRequest) GetCombineVersions() bool {
if m != nil && m.CombineVersions != nil {
return *m.CombineVersions
}
return false
}
func (m *LogUsageRequest) GetUsageVersion() int32 {
if m != nil && m.UsageVersion != nil {
return *m.UsageVersion
}
return 0
}
func (m *LogUsageRequest) GetVersionsOnly() bool {
if m != nil && m.VersionsOnly != nil {
return *m.VersionsOnly
}
return false
}
type LogUsageResponse struct {
Usage []*LogUsageRecord `protobuf:"bytes,1,rep,name=usage" json:"usage,omitempty"`
Summary *LogUsageRecord `protobuf:"bytes,2,opt,name=summary" json:"summary,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *LogUsageResponse) Reset() { *m = LogUsageResponse{} }
func (m *LogUsageResponse) String() string { return proto.CompactTextString(m) }
func (*LogUsageResponse) ProtoMessage() {}
func (m *LogUsageResponse) GetUsage() []*LogUsageRecord {
if m != nil {
return m.Usage
}
return nil
}
func (m *LogUsageResponse) GetSummary() *LogUsageRecord {
if m != nil {
return m.Summary
}
return nil
}
func init() {
}

150
vendor/google.golang.org/appengine/internal/log/log_service.proto generated vendored Normal file
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@ -0,0 +1,150 @@
syntax = "proto2";
option go_package = "log";
package appengine;
message LogServiceError {
enum ErrorCode {
OK = 0;
INVALID_REQUEST = 1;
STORAGE_ERROR = 2;
}
}
message UserAppLogLine {
required int64 timestamp_usec = 1;
required int64 level = 2;
required string message = 3;
}
message UserAppLogGroup {
repeated UserAppLogLine log_line = 2;
}
message FlushRequest {
optional bytes logs = 1;
}
message SetStatusRequest {
required string status = 1;
}
message LogOffset {
optional bytes request_id = 1;
}
message LogLine {
required int64 time = 1;
required int32 level = 2;
required string log_message = 3;
}
message RequestLog {
required string app_id = 1;
optional string module_id = 37 [default="default"];
required string version_id = 2;
required bytes request_id = 3;
optional LogOffset offset = 35;
required string ip = 4;
optional string nickname = 5;
required int64 start_time = 6;
required int64 end_time = 7;
required int64 latency = 8;
required int64 mcycles = 9;
required string method = 10;
required string resource = 11;
required string http_version = 12;
required int32 status = 13;
required int64 response_size = 14;
optional string referrer = 15;
optional string user_agent = 16;
required string url_map_entry = 17;
required string combined = 18;
optional int64 api_mcycles = 19;
optional string host = 20;
optional double cost = 21;
optional string task_queue_name = 22;
optional string task_name = 23;
optional bool was_loading_request = 24;
optional int64 pending_time = 25;
optional int32 replica_index = 26 [default = -1];
optional bool finished = 27 [default = true];
optional bytes clone_key = 28;
repeated LogLine line = 29;
optional bool lines_incomplete = 36;
optional bytes app_engine_release = 38;
optional int32 exit_reason = 30;
optional bool was_throttled_for_time = 31;
optional bool was_throttled_for_requests = 32;
optional int64 throttled_time = 33;
optional bytes server_name = 34;
}
message LogModuleVersion {
optional string module_id = 1 [default="default"];
optional string version_id = 2;
}
message LogReadRequest {
required string app_id = 1;
repeated string version_id = 2;
repeated LogModuleVersion module_version = 19;
optional int64 start_time = 3;
optional int64 end_time = 4;
optional LogOffset offset = 5;
repeated bytes request_id = 6;
optional int32 minimum_log_level = 7;
optional bool include_incomplete = 8;
optional int64 count = 9;
optional string combined_log_regex = 14;
optional string host_regex = 15;
optional int32 replica_index = 16;
optional bool include_app_logs = 10;
optional int32 app_logs_per_request = 17;
optional bool include_host = 11;
optional bool include_all = 12;
optional bool cache_iterator = 13;
optional int32 num_shards = 18;
}
message LogReadResponse {
repeated RequestLog log = 1;
optional LogOffset offset = 2;
optional int64 last_end_time = 3;
}
message LogUsageRecord {
optional string version_id = 1;
optional int32 start_time = 2;
optional int32 end_time = 3;
optional int64 count = 4;
optional int64 total_size = 5;
optional int32 records = 6;
}
message LogUsageRequest {
required string app_id = 1;
repeated string version_id = 2;
optional int32 start_time = 3;
optional int32 end_time = 4;
optional uint32 resolution_hours = 5 [default = 1];
optional bool combine_versions = 6;
optional int32 usage_version = 7;
optional bool versions_only = 8;
}
message LogUsageResponse {
repeated LogUsageRecord usage = 1;
optional LogUsageRecord summary = 2;
}

15
vendor/google.golang.org/appengine/internal/main.go generated vendored Normal file
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@ -0,0 +1,15 @@
// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// +build appengine
package internal
import (
"appengine_internal"
)
func Main() {
appengine_internal.Main()
}

44
vendor/google.golang.org/appengine/internal/main_vm.go generated vendored Normal file
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@ -0,0 +1,44 @@
// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// +build !appengine
package internal
import (
"io"
"log"
"net/http"
"net/url"
"os"
)
func Main() {
installHealthChecker(http.DefaultServeMux)
port := "8080"
if s := os.Getenv("PORT"); s != "" {
port = s
}
if err := http.ListenAndServe(":"+port, http.HandlerFunc(handleHTTP)); err != nil {
log.Fatalf("http.ListenAndServe: %v", err)
}
}
func installHealthChecker(mux *http.ServeMux) {
// If no health check handler has been installed by this point, add a trivial one.
const healthPath = "/_ah/health"
hreq := &http.Request{
Method: "GET",
URL: &url.URL{
Path: healthPath,
},
}
if _, pat := mux.Handler(hreq); pat != healthPath {
mux.HandleFunc(healthPath, func(w http.ResponseWriter, r *http.Request) {
io.WriteString(w, "ok")
})
}
}

61
vendor/google.golang.org/appengine/internal/metadata.go generated vendored Normal file
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@ -0,0 +1,61 @@
// Copyright 2014 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package internal
// This file has code for accessing metadata.
//
// References:
// https://cloud.google.com/compute/docs/metadata
import (
"fmt"
"io/ioutil"
"log"
"net/http"
"net/url"
)
const (
metadataHost = "metadata"
metadataPath = "/computeMetadata/v1/"
)
var (
metadataRequestHeaders = http.Header{
"Metadata-Flavor": []string{"Google"},
}
)
// TODO(dsymonds): Do we need to support default values, like Python?
func mustGetMetadata(key string) []byte {
b, err := getMetadata(key)
if err != nil {
log.Fatalf("Metadata fetch failed: %v", err)
}
return b
}
func getMetadata(key string) ([]byte, error) {
// TODO(dsymonds): May need to use url.Parse to support keys with query args.
req := &http.Request{
Method: "GET",
URL: &url.URL{
Scheme: "http",
Host: metadataHost,
Path: metadataPath + key,
},
Header: metadataRequestHeaders,
Host: metadataHost,
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
return nil, fmt.Errorf("metadata server returned HTTP %d", resp.StatusCode)
}
return ioutil.ReadAll(resp.Body)
}

375
vendor/google.golang.org/appengine/internal/modules/modules_service.pb.go generated vendored Normal file
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@ -0,0 +1,375 @@
// Code generated by protoc-gen-go.
// source: google.golang.org/appengine/internal/modules/modules_service.proto
// DO NOT EDIT!
/*
Package modules is a generated protocol buffer package.
It is generated from these files:
google.golang.org/appengine/internal/modules/modules_service.proto
It has these top-level messages:
ModulesServiceError
GetModulesRequest
GetModulesResponse
GetVersionsRequest
GetVersionsResponse
GetDefaultVersionRequest
GetDefaultVersionResponse
GetNumInstancesRequest
GetNumInstancesResponse
SetNumInstancesRequest
SetNumInstancesResponse
StartModuleRequest
StartModuleResponse
StopModuleRequest
StopModuleResponse
GetHostnameRequest
GetHostnameResponse
*/
package modules
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
type ModulesServiceError_ErrorCode int32
const (
ModulesServiceError_OK ModulesServiceError_ErrorCode = 0
ModulesServiceError_INVALID_MODULE ModulesServiceError_ErrorCode = 1
ModulesServiceError_INVALID_VERSION ModulesServiceError_ErrorCode = 2
ModulesServiceError_INVALID_INSTANCES ModulesServiceError_ErrorCode = 3
ModulesServiceError_TRANSIENT_ERROR ModulesServiceError_ErrorCode = 4
ModulesServiceError_UNEXPECTED_STATE ModulesServiceError_ErrorCode = 5
)
var ModulesServiceError_ErrorCode_name = map[int32]string{
0: "OK",
1: "INVALID_MODULE",
2: "INVALID_VERSION",
3: "INVALID_INSTANCES",
4: "TRANSIENT_ERROR",
5: "UNEXPECTED_STATE",
}
var ModulesServiceError_ErrorCode_value = map[string]int32{
"OK": 0,
"INVALID_MODULE": 1,
"INVALID_VERSION": 2,
"INVALID_INSTANCES": 3,
"TRANSIENT_ERROR": 4,
"UNEXPECTED_STATE": 5,
}
func (x ModulesServiceError_ErrorCode) Enum() *ModulesServiceError_ErrorCode {
p := new(ModulesServiceError_ErrorCode)
*p = x
return p
}
func (x ModulesServiceError_ErrorCode) String() string {
return proto.EnumName(ModulesServiceError_ErrorCode_name, int32(x))
}
func (x *ModulesServiceError_ErrorCode) UnmarshalJSON(data []byte) error {
value, err := proto.UnmarshalJSONEnum(ModulesServiceError_ErrorCode_value, data, "ModulesServiceError_ErrorCode")
if err != nil {
return err
}
*x = ModulesServiceError_ErrorCode(value)
return nil
}
type ModulesServiceError struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *ModulesServiceError) Reset() { *m = ModulesServiceError{} }
func (m *ModulesServiceError) String() string { return proto.CompactTextString(m) }
func (*ModulesServiceError) ProtoMessage() {}
type GetModulesRequest struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *GetModulesRequest) Reset() { *m = GetModulesRequest{} }
func (m *GetModulesRequest) String() string { return proto.CompactTextString(m) }
func (*GetModulesRequest) ProtoMessage() {}
type GetModulesResponse struct {
Module []string `protobuf:"bytes,1,rep,name=module" json:"module,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetModulesResponse) Reset() { *m = GetModulesResponse{} }
func (m *GetModulesResponse) String() string { return proto.CompactTextString(m) }
func (*GetModulesResponse) ProtoMessage() {}
func (m *GetModulesResponse) GetModule() []string {
if m != nil {
return m.Module
}
return nil
}
type GetVersionsRequest struct {
Module *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetVersionsRequest) Reset() { *m = GetVersionsRequest{} }
func (m *GetVersionsRequest) String() string { return proto.CompactTextString(m) }
func (*GetVersionsRequest) ProtoMessage() {}
func (m *GetVersionsRequest) GetModule() string {
if m != nil && m.Module != nil {
return *m.Module
}
return ""
}
type GetVersionsResponse struct {
Version []string `protobuf:"bytes,1,rep,name=version" json:"version,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetVersionsResponse) Reset() { *m = GetVersionsResponse{} }
func (m *GetVersionsResponse) String() string { return proto.CompactTextString(m) }
func (*GetVersionsResponse) ProtoMessage() {}
func (m *GetVersionsResponse) GetVersion() []string {
if m != nil {
return m.Version
}
return nil
}
type GetDefaultVersionRequest struct {
Module *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetDefaultVersionRequest) Reset() { *m = GetDefaultVersionRequest{} }
func (m *GetDefaultVersionRequest) String() string { return proto.CompactTextString(m) }
func (*GetDefaultVersionRequest) ProtoMessage() {}
func (m *GetDefaultVersionRequest) GetModule() string {
if m != nil && m.Module != nil {
return *m.Module
}
return ""
}
type GetDefaultVersionResponse struct {
Version *string `protobuf:"bytes,1,req,name=version" json:"version,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetDefaultVersionResponse) Reset() { *m = GetDefaultVersionResponse{} }
func (m *GetDefaultVersionResponse) String() string { return proto.CompactTextString(m) }
func (*GetDefaultVersionResponse) ProtoMessage() {}
func (m *GetDefaultVersionResponse) GetVersion() string {
if m != nil && m.Version != nil {
return *m.Version
}
return ""
}
type GetNumInstancesRequest struct {
Module *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
Version *string `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetNumInstancesRequest) Reset() { *m = GetNumInstancesRequest{} }
func (m *GetNumInstancesRequest) String() string { return proto.CompactTextString(m) }
func (*GetNumInstancesRequest) ProtoMessage() {}
func (m *GetNumInstancesRequest) GetModule() string {
if m != nil && m.Module != nil {
return *m.Module
}
return ""
}
func (m *GetNumInstancesRequest) GetVersion() string {
if m != nil && m.Version != nil {
return *m.Version
}
return ""
}
type GetNumInstancesResponse struct {
Instances *int64 `protobuf:"varint,1,req,name=instances" json:"instances,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetNumInstancesResponse) Reset() { *m = GetNumInstancesResponse{} }
func (m *GetNumInstancesResponse) String() string { return proto.CompactTextString(m) }
func (*GetNumInstancesResponse) ProtoMessage() {}
func (m *GetNumInstancesResponse) GetInstances() int64 {
if m != nil && m.Instances != nil {
return *m.Instances
}
return 0
}
type SetNumInstancesRequest struct {
Module *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
Version *string `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
Instances *int64 `protobuf:"varint,3,req,name=instances" json:"instances,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *SetNumInstancesRequest) Reset() { *m = SetNumInstancesRequest{} }
func (m *SetNumInstancesRequest) String() string { return proto.CompactTextString(m) }
func (*SetNumInstancesRequest) ProtoMessage() {}
func (m *SetNumInstancesRequest) GetModule() string {
if m != nil && m.Module != nil {
return *m.Module
}
return ""
}
func (m *SetNumInstancesRequest) GetVersion() string {
if m != nil && m.Version != nil {
return *m.Version
}
return ""
}
func (m *SetNumInstancesRequest) GetInstances() int64 {
if m != nil && m.Instances != nil {
return *m.Instances
}
return 0
}
type SetNumInstancesResponse struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *SetNumInstancesResponse) Reset() { *m = SetNumInstancesResponse{} }
func (m *SetNumInstancesResponse) String() string { return proto.CompactTextString(m) }
func (*SetNumInstancesResponse) ProtoMessage() {}
type StartModuleRequest struct {
Module *string `protobuf:"bytes,1,req,name=module" json:"module,omitempty"`
Version *string `protobuf:"bytes,2,req,name=version" json:"version,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *StartModuleRequest) Reset() { *m = StartModuleRequest{} }
func (m *StartModuleRequest) String() string { return proto.CompactTextString(m) }
func (*StartModuleRequest) ProtoMessage() {}
func (m *StartModuleRequest) GetModule() string {
if m != nil && m.Module != nil {
return *m.Module
}
return ""
}
func (m *StartModuleRequest) GetVersion() string {
if m != nil && m.Version != nil {
return *m.Version
}
return ""
}
type StartModuleResponse struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *StartModuleResponse) Reset() { *m = StartModuleResponse{} }
func (m *StartModuleResponse) String() string { return proto.CompactTextString(m) }
func (*StartModuleResponse) ProtoMessage() {}
type StopModuleRequest struct {
Module *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
Version *string `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *StopModuleRequest) Reset() { *m = StopModuleRequest{} }
func (m *StopModuleRequest) String() string { return proto.CompactTextString(m) }
func (*StopModuleRequest) ProtoMessage() {}
func (m *StopModuleRequest) GetModule() string {
if m != nil && m.Module != nil {
return *m.Module
}
return ""
}
func (m *StopModuleRequest) GetVersion() string {
if m != nil && m.Version != nil {
return *m.Version
}
return ""
}
type StopModuleResponse struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *StopModuleResponse) Reset() { *m = StopModuleResponse{} }
func (m *StopModuleResponse) String() string { return proto.CompactTextString(m) }
func (*StopModuleResponse) ProtoMessage() {}
type GetHostnameRequest struct {
Module *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
Version *string `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
Instance *string `protobuf:"bytes,3,opt,name=instance" json:"instance,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetHostnameRequest) Reset() { *m = GetHostnameRequest{} }
func (m *GetHostnameRequest) String() string { return proto.CompactTextString(m) }
func (*GetHostnameRequest) ProtoMessage() {}
func (m *GetHostnameRequest) GetModule() string {
if m != nil && m.Module != nil {
return *m.Module
}
return ""
}
func (m *GetHostnameRequest) GetVersion() string {
if m != nil && m.Version != nil {
return *m.Version
}
return ""
}
func (m *GetHostnameRequest) GetInstance() string {
if m != nil && m.Instance != nil {
return *m.Instance
}
return ""
}
type GetHostnameResponse struct {
Hostname *string `protobuf:"bytes,1,req,name=hostname" json:"hostname,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *GetHostnameResponse) Reset() { *m = GetHostnameResponse{} }
func (m *GetHostnameResponse) String() string { return proto.CompactTextString(m) }
func (*GetHostnameResponse) ProtoMessage() {}
func (m *GetHostnameResponse) GetHostname() string {
if m != nil && m.Hostname != nil {
return *m.Hostname
}
return ""
}
func init() {
}

80
vendor/google.golang.org/appengine/internal/modules/modules_service.proto generated vendored Normal file
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@ -0,0 +1,80 @@
syntax = "proto2";
option go_package = "modules";
package appengine;
message ModulesServiceError {
enum ErrorCode {
OK = 0;
INVALID_MODULE = 1;
INVALID_VERSION = 2;
INVALID_INSTANCES = 3;
TRANSIENT_ERROR = 4;
UNEXPECTED_STATE = 5;
}
}
message GetModulesRequest {
}
message GetModulesResponse {
repeated string module = 1;
}
message GetVersionsRequest {
optional string module = 1;
}
message GetVersionsResponse {
repeated string version = 1;
}
message GetDefaultVersionRequest {
optional string module = 1;
}
message GetDefaultVersionResponse {
required string version = 1;
}
message GetNumInstancesRequest {
optional string module = 1;
optional string version = 2;
}
message GetNumInstancesResponse {
required int64 instances = 1;
}
message SetNumInstancesRequest {
optional string module = 1;
optional string version = 2;
required int64 instances = 3;
}
message SetNumInstancesResponse {}
message StartModuleRequest {
required string module = 1;
required string version = 2;
}
message StartModuleResponse {}
message StopModuleRequest {
optional string module = 1;
optional string version = 2;
}
message StopModuleResponse {}
message GetHostnameRequest {
optional string module = 1;
optional string version = 2;
optional string instance = 3;
}
message GetHostnameResponse {
required string hostname = 1;
}

56
vendor/google.golang.org/appengine/internal/net.go generated vendored Normal file
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@ -0,0 +1,56 @@
// Copyright 2014 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package internal
// This file implements a network dialer that limits the number of concurrent connections.
// It is only used for API calls.
import (
"log"
"net"
"runtime"
"sync"
"time"
)
var limitSem = make(chan int, 100) // TODO(dsymonds): Use environment variable.
func limitRelease() {
// non-blocking
select {
case <-limitSem:
default:
// This should not normally happen.
log.Print("appengine: unbalanced limitSem release!")
}
}
func limitDial(network, addr string) (net.Conn, error) {
limitSem <- 1
// Dial with a timeout in case the API host is MIA.
// The connection should normally be very fast.
conn, err := net.DialTimeout(network, addr, 500*time.Millisecond)
if err != nil {
limitRelease()
return nil, err
}
lc := &limitConn{Conn: conn}
runtime.SetFinalizer(lc, (*limitConn).Close) // shouldn't usually be required
return lc, nil
}
type limitConn struct {
close sync.Once
net.Conn
}
func (lc *limitConn) Close() error {
defer lc.close.Do(func() {
limitRelease()
runtime.SetFinalizer(lc, nil)
})
return lc.Conn.Close()
}

40
vendor/google.golang.org/appengine/internal/regen.sh generated vendored Executable file
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@ -0,0 +1,40 @@
#!/bin/bash -e
#
# This script rebuilds the generated code for the protocol buffers.
# To run this you will need protoc and goprotobuf installed;
# see https://github.com/golang/protobuf for instructions.
PKG=google.golang.org/appengine
function die() {
echo 1>&2 $*
exit 1
}
# Sanity check that the right tools are accessible.
for tool in go protoc protoc-gen-go; do
q=$(which $tool) || die "didn't find $tool"
echo 1>&2 "$tool: $q"
done
echo -n 1>&2 "finding package dir... "
pkgdir=$(go list -f '{{.Dir}}' $PKG)
echo 1>&2 $pkgdir
base=$(echo $pkgdir | sed "s,/$PKG\$,,")
echo 1>&2 "base: $base"
cd $base
# Run protoc once per package.
for dir in $(find $PKG/internal -name '*.proto' | xargs dirname | sort | uniq); do
echo 1>&2 "* $dir"
protoc --go_out=. $dir/*.proto
done
for f in $(find $PKG/internal -name '*.pb.go'); do
# Remove proto.RegisterEnum calls.
# These cause duplicate registration panics when these packages
# are used on classic App Engine. proto.RegisterEnum only affects
# parsing the text format; we don't care about that.
# https://code.google.com/p/googleappengine/issues/detail?id=11670#c17
sed -i '/proto.RegisterEnum/d' $f
done

231
vendor/google.golang.org/appengine/internal/remote_api/remote_api.pb.go generated vendored Normal file
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@ -0,0 +1,231 @@
// Code generated by protoc-gen-go.
// source: google.golang.org/appengine/internal/remote_api/remote_api.proto
// DO NOT EDIT!
/*
Package remote_api is a generated protocol buffer package.
It is generated from these files:
google.golang.org/appengine/internal/remote_api/remote_api.proto
It has these top-level messages:
Request
ApplicationError
RpcError
Response
*/
package remote_api
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
type RpcError_ErrorCode int32
const (
RpcError_UNKNOWN RpcError_ErrorCode = 0
RpcError_CALL_NOT_FOUND RpcError_ErrorCode = 1
RpcError_PARSE_ERROR RpcError_ErrorCode = 2
RpcError_SECURITY_VIOLATION RpcError_ErrorCode = 3
RpcError_OVER_QUOTA RpcError_ErrorCode = 4
RpcError_REQUEST_TOO_LARGE RpcError_ErrorCode = 5
RpcError_CAPABILITY_DISABLED RpcError_ErrorCode = 6
RpcError_FEATURE_DISABLED RpcError_ErrorCode = 7
RpcError_BAD_REQUEST RpcError_ErrorCode = 8
RpcError_RESPONSE_TOO_LARGE RpcError_ErrorCode = 9
RpcError_CANCELLED RpcError_ErrorCode = 10
RpcError_REPLAY_ERROR RpcError_ErrorCode = 11
RpcError_DEADLINE_EXCEEDED RpcError_ErrorCode = 12
)
var RpcError_ErrorCode_name = map[int32]string{
0: "UNKNOWN",
1: "CALL_NOT_FOUND",
2: "PARSE_ERROR",
3: "SECURITY_VIOLATION",
4: "OVER_QUOTA",
5: "REQUEST_TOO_LARGE",
6: "CAPABILITY_DISABLED",
7: "FEATURE_DISABLED",
8: "BAD_REQUEST",
9: "RESPONSE_TOO_LARGE",
10: "CANCELLED",
11: "REPLAY_ERROR",
12: "DEADLINE_EXCEEDED",
}
var RpcError_ErrorCode_value = map[string]int32{
"UNKNOWN": 0,
"CALL_NOT_FOUND": 1,
"PARSE_ERROR": 2,
"SECURITY_VIOLATION": 3,
"OVER_QUOTA": 4,
"REQUEST_TOO_LARGE": 5,
"CAPABILITY_DISABLED": 6,
"FEATURE_DISABLED": 7,
"BAD_REQUEST": 8,
"RESPONSE_TOO_LARGE": 9,
"CANCELLED": 10,
"REPLAY_ERROR": 11,
"DEADLINE_EXCEEDED": 12,
}
func (x RpcError_ErrorCode) Enum() *RpcError_ErrorCode {
p := new(RpcError_ErrorCode)
*p = x
return p
}
func (x RpcError_ErrorCode) String() string {
return proto.EnumName(RpcError_ErrorCode_name, int32(x))
}
func (x *RpcError_ErrorCode) UnmarshalJSON(data []byte) error {
value, err := proto.UnmarshalJSONEnum(RpcError_ErrorCode_value, data, "RpcError_ErrorCode")
if err != nil {
return err
}
*x = RpcError_ErrorCode(value)
return nil
}
type Request struct {
ServiceName *string `protobuf:"bytes,2,req,name=service_name" json:"service_name,omitempty"`
Method *string `protobuf:"bytes,3,req,name=method" json:"method,omitempty"`
Request []byte `protobuf:"bytes,4,req,name=request" json:"request,omitempty"`
RequestId *string `protobuf:"bytes,5,opt,name=request_id" json:"request_id,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *Request) Reset() { *m = Request{} }
func (m *Request) String() string { return proto.CompactTextString(m) }
func (*Request) ProtoMessage() {}
func (m *Request) GetServiceName() string {
if m != nil && m.ServiceName != nil {
return *m.ServiceName
}
return ""
}
func (m *Request) GetMethod() string {
if m != nil && m.Method != nil {
return *m.Method
}
return ""
}
func (m *Request) GetRequest() []byte {
if m != nil {
return m.Request
}
return nil
}
func (m *Request) GetRequestId() string {
if m != nil && m.RequestId != nil {
return *m.RequestId
}
return ""
}
type ApplicationError struct {
Code *int32 `protobuf:"varint,1,req,name=code" json:"code,omitempty"`
Detail *string `protobuf:"bytes,2,req,name=detail" json:"detail,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *ApplicationError) Reset() { *m = ApplicationError{} }
func (m *ApplicationError) String() string { return proto.CompactTextString(m) }
func (*ApplicationError) ProtoMessage() {}
func (m *ApplicationError) GetCode() int32 {
if m != nil && m.Code != nil {
return *m.Code
}
return 0
}
func (m *ApplicationError) GetDetail() string {
if m != nil && m.Detail != nil {
return *m.Detail
}
return ""
}
type RpcError struct {
Code *int32 `protobuf:"varint,1,req,name=code" json:"code,omitempty"`
Detail *string `protobuf:"bytes,2,opt,name=detail" json:"detail,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *RpcError) Reset() { *m = RpcError{} }
func (m *RpcError) String() string { return proto.CompactTextString(m) }
func (*RpcError) ProtoMessage() {}
func (m *RpcError) GetCode() int32 {
if m != nil && m.Code != nil {
return *m.Code
}
return 0
}
func (m *RpcError) GetDetail() string {
if m != nil && m.Detail != nil {
return *m.Detail
}
return ""
}
type Response struct {
Response []byte `protobuf:"bytes,1,opt,name=response" json:"response,omitempty"`
Exception []byte `protobuf:"bytes,2,opt,name=exception" json:"exception,omitempty"`
ApplicationError *ApplicationError `protobuf:"bytes,3,opt,name=application_error" json:"application_error,omitempty"`
JavaException []byte `protobuf:"bytes,4,opt,name=java_exception" json:"java_exception,omitempty"`
RpcError *RpcError `protobuf:"bytes,5,opt,name=rpc_error" json:"rpc_error,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *Response) Reset() { *m = Response{} }
func (m *Response) String() string { return proto.CompactTextString(m) }
func (*Response) ProtoMessage() {}
func (m *Response) GetResponse() []byte {
if m != nil {
return m.Response
}
return nil
}
func (m *Response) GetException() []byte {
if m != nil {
return m.Exception
}
return nil
}
func (m *Response) GetApplicationError() *ApplicationError {
if m != nil {
return m.ApplicationError
}
return nil
}
func (m *Response) GetJavaException() []byte {
if m != nil {
return m.JavaException
}
return nil
}
func (m *Response) GetRpcError() *RpcError {
if m != nil {
return m.RpcError
}
return nil
}
func init() {
}

44
vendor/google.golang.org/appengine/internal/remote_api/remote_api.proto generated vendored Normal file
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@ -0,0 +1,44 @@
syntax = "proto2";
option go_package = "remote_api";
package remote_api;
message Request {
required string service_name = 2;
required string method = 3;
required bytes request = 4;
optional string request_id = 5;
}
message ApplicationError {
required int32 code = 1;
required string detail = 2;
}
message RpcError {
enum ErrorCode {
UNKNOWN = 0;
CALL_NOT_FOUND = 1;
PARSE_ERROR = 2;
SECURITY_VIOLATION = 3;
OVER_QUOTA = 4;
REQUEST_TOO_LARGE = 5;
CAPABILITY_DISABLED = 6;
FEATURE_DISABLED = 7;
BAD_REQUEST = 8;
RESPONSE_TOO_LARGE = 9;
CANCELLED = 10;
REPLAY_ERROR = 11;
DEADLINE_EXCEEDED = 12;
}
required int32 code = 1;
optional string detail = 2;
}
message Response {
optional bytes response = 1;
optional bytes exception = 2;
optional ApplicationError application_error = 3;
optional bytes java_exception = 4;
optional RpcError rpc_error = 5;
}

107
vendor/google.golang.org/appengine/internal/transaction.go generated vendored Normal file
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@ -0,0 +1,107 @@
// Copyright 2014 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package internal
// This file implements hooks for applying datastore transactions.
import (
"errors"
"reflect"
"github.com/golang/protobuf/proto"
netcontext "golang.org/x/net/context"
basepb "google.golang.org/appengine/internal/base"
pb "google.golang.org/appengine/internal/datastore"
)
var transactionSetters = make(map[reflect.Type]reflect.Value)
// RegisterTransactionSetter registers a function that sets transaction information
// in a protocol buffer message. f should be a function with two arguments,
// the first being a protocol buffer type, and the second being *datastore.Transaction.
func RegisterTransactionSetter(f interface{}) {
v := reflect.ValueOf(f)
transactionSetters[v.Type().In(0)] = v
}
// applyTransaction applies the transaction t to message pb
// by using the relevant setter passed to RegisterTransactionSetter.
func applyTransaction(pb proto.Message, t *pb.Transaction) {
v := reflect.ValueOf(pb)
if f, ok := transactionSetters[v.Type()]; ok {
f.Call([]reflect.Value{v, reflect.ValueOf(t)})
}
}
var transactionKey = "used for *Transaction"
func transactionFromContext(ctx netcontext.Context) *transaction {
t, _ := ctx.Value(&transactionKey).(*transaction)
return t
}
func withTransaction(ctx netcontext.Context, t *transaction) netcontext.Context {
return netcontext.WithValue(ctx, &transactionKey, t)
}
type transaction struct {
transaction pb.Transaction
finished bool
}
var ErrConcurrentTransaction = errors.New("internal: concurrent transaction")
func RunTransactionOnce(c netcontext.Context, f func(netcontext.Context) error, xg bool) error {
if transactionFromContext(c) != nil {
return errors.New("nested transactions are not supported")
}
// Begin the transaction.
t := &transaction{}
req := &pb.BeginTransactionRequest{
App: proto.String(FullyQualifiedAppID(c)),
}
if xg {
req.AllowMultipleEg = proto.Bool(true)
}
if err := Call(c, "datastore_v3", "BeginTransaction", req, &t.transaction); err != nil {
return err
}
// Call f, rolling back the transaction if f returns a non-nil error, or panics.
// The panic is not recovered.
defer func() {
if t.finished {
return
}
t.finished = true
// Ignore the error return value, since we are already returning a non-nil
// error (or we're panicking).
Call(c, "datastore_v3", "Rollback", &t.transaction, &basepb.VoidProto{})
}()
if err := f(withTransaction(c, t)); err != nil {
return err
}
t.finished = true
// Commit the transaction.
res := &pb.CommitResponse{}
err := Call(c, "datastore_v3", "Commit", &t.transaction, res)
if ae, ok := err.(*APIError); ok {
/* TODO: restore this conditional
if appengine.IsDevAppServer() {
*/
// The Python Dev AppServer raises an ApplicationError with error code 2 (which is
// Error.CONCURRENT_TRANSACTION) and message "Concurrency exception.".
if ae.Code == int32(pb.Error_BAD_REQUEST) && ae.Detail == "ApplicationError: 2 Concurrency exception." {
return ErrConcurrentTransaction
}
if ae.Code == int32(pb.Error_CONCURRENT_TRANSACTION) {
return ErrConcurrentTransaction
}
}
return err
}

355
vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.pb.go generated vendored Normal file
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@ -0,0 +1,355 @@
// Code generated by protoc-gen-go.
// source: google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto
// DO NOT EDIT!
/*
Package urlfetch is a generated protocol buffer package.
It is generated from these files:
google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto
It has these top-level messages:
URLFetchServiceError
URLFetchRequest
URLFetchResponse
*/
package urlfetch
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
type URLFetchServiceError_ErrorCode int32
const (
URLFetchServiceError_OK URLFetchServiceError_ErrorCode = 0
URLFetchServiceError_INVALID_URL URLFetchServiceError_ErrorCode = 1
URLFetchServiceError_FETCH_ERROR URLFetchServiceError_ErrorCode = 2
URLFetchServiceError_UNSPECIFIED_ERROR URLFetchServiceError_ErrorCode = 3
URLFetchServiceError_RESPONSE_TOO_LARGE URLFetchServiceError_ErrorCode = 4
URLFetchServiceError_DEADLINE_EXCEEDED URLFetchServiceError_ErrorCode = 5
URLFetchServiceError_SSL_CERTIFICATE_ERROR URLFetchServiceError_ErrorCode = 6
URLFetchServiceError_DNS_ERROR URLFetchServiceError_ErrorCode = 7
URLFetchServiceError_CLOSED URLFetchServiceError_ErrorCode = 8
URLFetchServiceError_INTERNAL_TRANSIENT_ERROR URLFetchServiceError_ErrorCode = 9
URLFetchServiceError_TOO_MANY_REDIRECTS URLFetchServiceError_ErrorCode = 10
URLFetchServiceError_MALFORMED_REPLY URLFetchServiceError_ErrorCode = 11
URLFetchServiceError_CONNECTION_ERROR URLFetchServiceError_ErrorCode = 12
)
var URLFetchServiceError_ErrorCode_name = map[int32]string{
0: "OK",
1: "INVALID_URL",
2: "FETCH_ERROR",
3: "UNSPECIFIED_ERROR",
4: "RESPONSE_TOO_LARGE",
5: "DEADLINE_EXCEEDED",
6: "SSL_CERTIFICATE_ERROR",
7: "DNS_ERROR",
8: "CLOSED",
9: "INTERNAL_TRANSIENT_ERROR",
10: "TOO_MANY_REDIRECTS",
11: "MALFORMED_REPLY",
12: "CONNECTION_ERROR",
}
var URLFetchServiceError_ErrorCode_value = map[string]int32{
"OK": 0,
"INVALID_URL": 1,
"FETCH_ERROR": 2,
"UNSPECIFIED_ERROR": 3,
"RESPONSE_TOO_LARGE": 4,
"DEADLINE_EXCEEDED": 5,
"SSL_CERTIFICATE_ERROR": 6,
"DNS_ERROR": 7,
"CLOSED": 8,
"INTERNAL_TRANSIENT_ERROR": 9,
"TOO_MANY_REDIRECTS": 10,
"MALFORMED_REPLY": 11,
"CONNECTION_ERROR": 12,
}
func (x URLFetchServiceError_ErrorCode) Enum() *URLFetchServiceError_ErrorCode {
p := new(URLFetchServiceError_ErrorCode)
*p = x
return p
}
func (x URLFetchServiceError_ErrorCode) String() string {
return proto.EnumName(URLFetchServiceError_ErrorCode_name, int32(x))
}
func (x *URLFetchServiceError_ErrorCode) UnmarshalJSON(data []byte) error {
value, err := proto.UnmarshalJSONEnum(URLFetchServiceError_ErrorCode_value, data, "URLFetchServiceError_ErrorCode")
if err != nil {
return err
}
*x = URLFetchServiceError_ErrorCode(value)
return nil
}
type URLFetchRequest_RequestMethod int32
const (
URLFetchRequest_GET URLFetchRequest_RequestMethod = 1
URLFetchRequest_POST URLFetchRequest_RequestMethod = 2
URLFetchRequest_HEAD URLFetchRequest_RequestMethod = 3
URLFetchRequest_PUT URLFetchRequest_RequestMethod = 4
URLFetchRequest_DELETE URLFetchRequest_RequestMethod = 5
URLFetchRequest_PATCH URLFetchRequest_RequestMethod = 6
)
var URLFetchRequest_RequestMethod_name = map[int32]string{
1: "GET",
2: "POST",
3: "HEAD",
4: "PUT",
5: "DELETE",
6: "PATCH",
}
var URLFetchRequest_RequestMethod_value = map[string]int32{
"GET": 1,
"POST": 2,
"HEAD": 3,
"PUT": 4,
"DELETE": 5,
"PATCH": 6,
}
func (x URLFetchRequest_RequestMethod) Enum() *URLFetchRequest_RequestMethod {
p := new(URLFetchRequest_RequestMethod)
*p = x
return p
}
func (x URLFetchRequest_RequestMethod) String() string {
return proto.EnumName(URLFetchRequest_RequestMethod_name, int32(x))
}
func (x *URLFetchRequest_RequestMethod) UnmarshalJSON(data []byte) error {
value, err := proto.UnmarshalJSONEnum(URLFetchRequest_RequestMethod_value, data, "URLFetchRequest_RequestMethod")
if err != nil {
return err
}
*x = URLFetchRequest_RequestMethod(value)
return nil
}
type URLFetchServiceError struct {
XXX_unrecognized []byte `json:"-"`
}
func (m *URLFetchServiceError) Reset() { *m = URLFetchServiceError{} }
func (m *URLFetchServiceError) String() string { return proto.CompactTextString(m) }
func (*URLFetchServiceError) ProtoMessage() {}
type URLFetchRequest struct {
Method *URLFetchRequest_RequestMethod `protobuf:"varint,1,req,name=Method,enum=appengine.URLFetchRequest_RequestMethod" json:"Method,omitempty"`
Url *string `protobuf:"bytes,2,req,name=Url" json:"Url,omitempty"`
Header []*URLFetchRequest_Header `protobuf:"group,3,rep,name=Header" json:"header,omitempty"`
Payload []byte `protobuf:"bytes,6,opt,name=Payload" json:"Payload,omitempty"`
FollowRedirects *bool `protobuf:"varint,7,opt,name=FollowRedirects,def=1" json:"FollowRedirects,omitempty"`
Deadline *float64 `protobuf:"fixed64,8,opt,name=Deadline" json:"Deadline,omitempty"`
MustValidateServerCertificate *bool `protobuf:"varint,9,opt,name=MustValidateServerCertificate,def=1" json:"MustValidateServerCertificate,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *URLFetchRequest) Reset() { *m = URLFetchRequest{} }
func (m *URLFetchRequest) String() string { return proto.CompactTextString(m) }
func (*URLFetchRequest) ProtoMessage() {}
const Default_URLFetchRequest_FollowRedirects bool = true
const Default_URLFetchRequest_MustValidateServerCertificate bool = true
func (m *URLFetchRequest) GetMethod() URLFetchRequest_RequestMethod {
if m != nil && m.Method != nil {
return *m.Method
}
return URLFetchRequest_GET
}
func (m *URLFetchRequest) GetUrl() string {
if m != nil && m.Url != nil {
return *m.Url
}
return ""
}
func (m *URLFetchRequest) GetHeader() []*URLFetchRequest_Header {
if m != nil {
return m.Header
}
return nil
}
func (m *URLFetchRequest) GetPayload() []byte {
if m != nil {
return m.Payload
}
return nil
}
func (m *URLFetchRequest) GetFollowRedirects() bool {
if m != nil && m.FollowRedirects != nil {
return *m.FollowRedirects
}
return Default_URLFetchRequest_FollowRedirects
}
func (m *URLFetchRequest) GetDeadline() float64 {
if m != nil && m.Deadline != nil {
return *m.Deadline
}
return 0
}
func (m *URLFetchRequest) GetMustValidateServerCertificate() bool {
if m != nil && m.MustValidateServerCertificate != nil {
return *m.MustValidateServerCertificate
}
return Default_URLFetchRequest_MustValidateServerCertificate
}
type URLFetchRequest_Header struct {
Key *string `protobuf:"bytes,4,req,name=Key" json:"Key,omitempty"`
Value *string `protobuf:"bytes,5,req,name=Value" json:"Value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *URLFetchRequest_Header) Reset() { *m = URLFetchRequest_Header{} }
func (m *URLFetchRequest_Header) String() string { return proto.CompactTextString(m) }
func (*URLFetchRequest_Header) ProtoMessage() {}
func (m *URLFetchRequest_Header) GetKey() string {
if m != nil && m.Key != nil {
return *m.Key
}
return ""
}
func (m *URLFetchRequest_Header) GetValue() string {
if m != nil && m.Value != nil {
return *m.Value
}
return ""
}
type URLFetchResponse struct {
Content []byte `protobuf:"bytes,1,opt,name=Content" json:"Content,omitempty"`
StatusCode *int32 `protobuf:"varint,2,req,name=StatusCode" json:"StatusCode,omitempty"`
Header []*URLFetchResponse_Header `protobuf:"group,3,rep,name=Header" json:"header,omitempty"`
ContentWasTruncated *bool `protobuf:"varint,6,opt,name=ContentWasTruncated,def=0" json:"ContentWasTruncated,omitempty"`
ExternalBytesSent *int64 `protobuf:"varint,7,opt,name=ExternalBytesSent" json:"ExternalBytesSent,omitempty"`
ExternalBytesReceived *int64 `protobuf:"varint,8,opt,name=ExternalBytesReceived" json:"ExternalBytesReceived,omitempty"`
FinalUrl *string `protobuf:"bytes,9,opt,name=FinalUrl" json:"FinalUrl,omitempty"`
ApiCpuMilliseconds *int64 `protobuf:"varint,10,opt,name=ApiCpuMilliseconds,def=0" json:"ApiCpuMilliseconds,omitempty"`
ApiBytesSent *int64 `protobuf:"varint,11,opt,name=ApiBytesSent,def=0" json:"ApiBytesSent,omitempty"`
ApiBytesReceived *int64 `protobuf:"varint,12,opt,name=ApiBytesReceived,def=0" json:"ApiBytesReceived,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *URLFetchResponse) Reset() { *m = URLFetchResponse{} }
func (m *URLFetchResponse) String() string { return proto.CompactTextString(m) }
func (*URLFetchResponse) ProtoMessage() {}
const Default_URLFetchResponse_ContentWasTruncated bool = false
const Default_URLFetchResponse_ApiCpuMilliseconds int64 = 0
const Default_URLFetchResponse_ApiBytesSent int64 = 0
const Default_URLFetchResponse_ApiBytesReceived int64 = 0
func (m *URLFetchResponse) GetContent() []byte {
if m != nil {
return m.Content
}
return nil
}
func (m *URLFetchResponse) GetStatusCode() int32 {
if m != nil && m.StatusCode != nil {
return *m.StatusCode
}
return 0
}
func (m *URLFetchResponse) GetHeader() []*URLFetchResponse_Header {
if m != nil {
return m.Header
}
return nil
}
func (m *URLFetchResponse) GetContentWasTruncated() bool {
if m != nil && m.ContentWasTruncated != nil {
return *m.ContentWasTruncated
}
return Default_URLFetchResponse_ContentWasTruncated
}
func (m *URLFetchResponse) GetExternalBytesSent() int64 {
if m != nil && m.ExternalBytesSent != nil {
return *m.ExternalBytesSent
}
return 0
}
func (m *URLFetchResponse) GetExternalBytesReceived() int64 {
if m != nil && m.ExternalBytesReceived != nil {
return *m.ExternalBytesReceived
}
return 0
}
func (m *URLFetchResponse) GetFinalUrl() string {
if m != nil && m.FinalUrl != nil {
return *m.FinalUrl
}
return ""
}
func (m *URLFetchResponse) GetApiCpuMilliseconds() int64 {
if m != nil && m.ApiCpuMilliseconds != nil {
return *m.ApiCpuMilliseconds
}
return Default_URLFetchResponse_ApiCpuMilliseconds
}
func (m *URLFetchResponse) GetApiBytesSent() int64 {
if m != nil && m.ApiBytesSent != nil {
return *m.ApiBytesSent
}
return Default_URLFetchResponse_ApiBytesSent
}
func (m *URLFetchResponse) GetApiBytesReceived() int64 {
if m != nil && m.ApiBytesReceived != nil {
return *m.ApiBytesReceived
}
return Default_URLFetchResponse_ApiBytesReceived
}
type URLFetchResponse_Header struct {
Key *string `protobuf:"bytes,4,req,name=Key" json:"Key,omitempty"`
Value *string `protobuf:"bytes,5,req,name=Value" json:"Value,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *URLFetchResponse_Header) Reset() { *m = URLFetchResponse_Header{} }
func (m *URLFetchResponse_Header) String() string { return proto.CompactTextString(m) }
func (*URLFetchResponse_Header) ProtoMessage() {}
func (m *URLFetchResponse_Header) GetKey() string {
if m != nil && m.Key != nil {
return *m.Key
}
return ""
}
func (m *URLFetchResponse_Header) GetValue() string {
if m != nil && m.Value != nil {
return *m.Value
}
return ""
}
func init() {
}

64
vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto generated vendored Normal file
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@ -0,0 +1,64 @@
syntax = "proto2";
option go_package = "urlfetch";
package appengine;
message URLFetchServiceError {
enum ErrorCode {
OK = 0;
INVALID_URL = 1;
FETCH_ERROR = 2;
UNSPECIFIED_ERROR = 3;
RESPONSE_TOO_LARGE = 4;
DEADLINE_EXCEEDED = 5;
SSL_CERTIFICATE_ERROR = 6;
DNS_ERROR = 7;
CLOSED = 8;
INTERNAL_TRANSIENT_ERROR = 9;
TOO_MANY_REDIRECTS = 10;
MALFORMED_REPLY = 11;
CONNECTION_ERROR = 12;
}
}
message URLFetchRequest {
enum RequestMethod {
GET = 1;
POST = 2;
HEAD = 3;
PUT = 4;
DELETE = 5;
PATCH = 6;
}
required RequestMethod Method = 1;
required string Url = 2;
repeated group Header = 3 {
required string Key = 4;
required string Value = 5;
}
optional bytes Payload = 6 [ctype=CORD];
optional bool FollowRedirects = 7 [default=true];
optional double Deadline = 8;
optional bool MustValidateServerCertificate = 9 [default=true];
}
message URLFetchResponse {
optional bytes Content = 1;
required int32 StatusCode = 2;
repeated group Header = 3 {
required string Key = 4;
required string Value = 5;
}
optional bool ContentWasTruncated = 6 [default=false];
optional int64 ExternalBytesSent = 7;
optional int64 ExternalBytesReceived = 8;
optional string FinalUrl = 9;
optional int64 ApiCpuMilliseconds = 10 [default=0];
optional int64 ApiBytesSent = 11 [default=0];
optional int64 ApiBytesReceived = 12 [default=0];
}

25
vendor/google.golang.org/appengine/namespace.go generated vendored Normal file
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@ -0,0 +1,25 @@
// Copyright 2012 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package appengine
import (
"fmt"
"regexp"
"golang.org/x/net/context"
"google.golang.org/appengine/internal"
)
// Namespace returns a replacement context that operates within the given namespace.
func Namespace(c context.Context, namespace string) (context.Context, error) {
if !validNamespace.MatchString(namespace) {
return nil, fmt.Errorf("appengine: namespace %q does not match /%s/", namespace, validNamespace)
}
return internal.NamespacedContext(c, namespace), nil
}
// validNamespace matches valid namespace names.
var validNamespace = regexp.MustCompile(`^[0-9A-Za-z._-]{0,100}$`)

20
vendor/google.golang.org/appengine/timeout.go generated vendored Normal file
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@ -0,0 +1,20 @@
// Copyright 2013 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package appengine
import "golang.org/x/net/context"
// IsTimeoutError reports whether err is a timeout error.
func IsTimeoutError(err error) bool {
if err == context.DeadlineExceeded {
return true
}
if t, ok := err.(interface {
IsTimeout() bool
}); ok {
return t.IsTimeout()
}
return false
}

210
vendor/google.golang.org/appengine/urlfetch/urlfetch.go generated vendored Normal file
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@ -0,0 +1,210 @@
// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// Package urlfetch provides an http.RoundTripper implementation
// for fetching URLs via App Engine's urlfetch service.
package urlfetch // import "google.golang.org/appengine/urlfetch"
import (
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"github.com/golang/protobuf/proto"
"golang.org/x/net/context"
"google.golang.org/appengine/internal"
pb "google.golang.org/appengine/internal/urlfetch"
)
// Transport is an implementation of http.RoundTripper for
// App Engine. Users should generally create an http.Client using
// this transport and use the Client rather than using this transport
// directly.
type Transport struct {
Context context.Context
// Controls whether the application checks the validity of SSL certificates
// over HTTPS connections. A value of false (the default) instructs the
// application to send a request to the server only if the certificate is
// valid and signed by a trusted certificate authority (CA), and also
// includes a hostname that matches the certificate. A value of true
// instructs the application to perform no certificate validation.
AllowInvalidServerCertificate bool
}
// Verify statically that *Transport implements http.RoundTripper.
var _ http.RoundTripper = (*Transport)(nil)
// Client returns an *http.Client using a default urlfetch Transport. This
// client will have the default deadline of 5 seconds, and will check the
// validity of SSL certificates.
//
// Any deadline of the provided context will be used for requests through this client;
// if the client does not have a deadline then a 5 second default is used.
func Client(ctx context.Context) *http.Client {
return &http.Client{
Transport: &Transport{
Context: ctx,
},
}
}
type bodyReader struct {
content []byte
truncated bool
closed bool
}
// ErrTruncatedBody is the error returned after the final Read() from a
// response's Body if the body has been truncated by App Engine's proxy.
var ErrTruncatedBody = errors.New("urlfetch: truncated body")
func statusCodeToText(code int) string {
if t := http.StatusText(code); t != "" {
return t
}
return strconv.Itoa(code)
}
func (br *bodyReader) Read(p []byte) (n int, err error) {
if br.closed {
if br.truncated {
return 0, ErrTruncatedBody
}
return 0, io.EOF
}
n = copy(p, br.content)
if n > 0 {
br.content = br.content[n:]
return
}
if br.truncated {
br.closed = true
return 0, ErrTruncatedBody
}
return 0, io.EOF
}
func (br *bodyReader) Close() error {
br.closed = true
br.content = nil
return nil
}
// A map of the URL Fetch-accepted methods that take a request body.
var methodAcceptsRequestBody = map[string]bool{
"POST": true,
"PUT": true,
"PATCH": true,
}
// urlString returns a valid string given a URL. This function is necessary because
// the String method of URL doesn't correctly handle URLs with non-empty Opaque values.
// See http://code.google.com/p/go/issues/detail?id=4860.
func urlString(u *url.URL) string {
if u.Opaque == "" || strings.HasPrefix(u.Opaque, "//") {
return u.String()
}
aux := *u
aux.Opaque = "//" + aux.Host + aux.Opaque
return aux.String()
}
// RoundTrip issues a single HTTP request and returns its response. Per the
// http.RoundTripper interface, RoundTrip only returns an error if there
// was an unsupported request or the URL Fetch proxy fails.
// Note that HTTP response codes such as 5xx, 403, 404, etc are not
// errors as far as the transport is concerned and will be returned
// with err set to nil.
func (t *Transport) RoundTrip(req *http.Request) (res *http.Response, err error) {
methNum, ok := pb.URLFetchRequest_RequestMethod_value[req.Method]
if !ok {
return nil, fmt.Errorf("urlfetch: unsupported HTTP method %q", req.Method)
}
method := pb.URLFetchRequest_RequestMethod(methNum)
freq := &pb.URLFetchRequest{
Method: &method,
Url: proto.String(urlString(req.URL)),
FollowRedirects: proto.Bool(false), // http.Client's responsibility
MustValidateServerCertificate: proto.Bool(!t.AllowInvalidServerCertificate),
}
if deadline, ok := t.Context.Deadline(); ok {
freq.Deadline = proto.Float64(deadline.Sub(time.Now()).Seconds())
}
for k, vals := range req.Header {
for _, val := range vals {
freq.Header = append(freq.Header, &pb.URLFetchRequest_Header{
Key: proto.String(k),
Value: proto.String(val),
})
}
}
if methodAcceptsRequestBody[req.Method] && req.Body != nil {
// Avoid a []byte copy if req.Body has a Bytes method.
switch b := req.Body.(type) {
case interface {
Bytes() []byte
}:
freq.Payload = b.Bytes()
default:
freq.Payload, err = ioutil.ReadAll(req.Body)
if err != nil {
return nil, err
}
}
}
fres := &pb.URLFetchResponse{}
if err := internal.Call(t.Context, "urlfetch", "Fetch", freq, fres); err != nil {
return nil, err
}
res = &http.Response{}
res.StatusCode = int(*fres.StatusCode)
res.Status = fmt.Sprintf("%d %s", res.StatusCode, statusCodeToText(res.StatusCode))
res.Header = make(http.Header)
res.Request = req
// Faked:
res.ProtoMajor = 1
res.ProtoMinor = 1
res.Proto = "HTTP/1.1"
res.Close = true
for _, h := range fres.Header {
hkey := http.CanonicalHeaderKey(*h.Key)
hval := *h.Value
if hkey == "Content-Length" {
// Will get filled in below for all but HEAD requests.
if req.Method == "HEAD" {
res.ContentLength, _ = strconv.ParseInt(hval, 10, 64)
}
continue
}
res.Header.Add(hkey, hval)
}
if req.Method != "HEAD" {
res.ContentLength = int64(len(fres.Content))
}
truncated := fres.GetContentWasTruncated()
res.Body = &bodyReader{content: fres.Content, truncated: truncated}
return
}
func init() {
internal.RegisterErrorCodeMap("urlfetch", pb.URLFetchServiceError_ErrorCode_name)
internal.RegisterTimeoutErrorCode("urlfetch", int32(pb.URLFetchServiceError_DEADLINE_EXCEEDED))
}

144
vendor/vendor.json vendored
View File

@ -2,6 +2,18 @@
"comment": "",
"ignore": "test",
"package": [
{
"checksumSHA1": "ZLRh6zW4/DnVsGpgtt+ZiIaEFKc=",
"path": "cloud.google.com/go/compute/metadata",
"revision": "837ecd5c3c75f2e8304f300f8f1c883ee26cdee9",
"revisionTime": "2016-09-16T22:17:49Z"
},
{
"checksumSHA1": "hiJXjkFEGy+sDFf6O58Ocdy9Rnk=",
"path": "cloud.google.com/go/internal",
"revision": "837ecd5c3c75f2e8304f300f8f1c883ee26cdee9",
"revisionTime": "2016-09-16T22:17:49Z"
},
{
"path": "github.com/DisposaBoy/JsonConfigReader",
"revision": "33a99fdf1d5ee1f79b5077e9c06f955ad356d5f4",
@ -188,6 +200,12 @@
"revision": "060d7da055ba6ec5ea7a31f116332fe5efa04ce0",
"revisionTime": "2015-11-04T20:00:20-05:00"
},
{
"checksumSHA1": "Ph3AzJaMHZxUdyqWL+Lx3CufxRw=",
"path": "github.com/golang/protobuf/proto",
"revision": "45760678a2e5102a51433d40069dbc9ec5b26753",
"revisionTime": "2016-02-25T03:18:00Z"
},
{
"checksumSHA1": "Wbsfxh89xfnFDZzoEOzpfUV9+u8=",
"origin": "github.com/aws/aws-sdk-go/vendor/github.com/jmespath/go-jmespath",
@ -302,6 +320,48 @@
"revision": "7d9cbc2befca39869eb0e5bcb0f44c0692c2f8ff",
"revisionTime": "2016-07-28T22:04:12Z"
},
{
"checksumSHA1": "9jjO5GjLa0XF/nfWihF02RoH4qc=",
"path": "golang.org/x/net/context",
"revision": "4971afdc2f162e82d185353533d3cf16188a9f4e",
"revisionTime": "2016-11-15T21:05:04Z"
},
{
"checksumSHA1": "WHc3uByvGaMcnSoI21fhzYgbOgg=",
"path": "golang.org/x/net/context/ctxhttp",
"revision": "4971afdc2f162e82d185353533d3cf16188a9f4e",
"revisionTime": "2016-11-15T21:05:04Z"
},
{
"checksumSHA1": "XH7CgbL5Z8COUc+MKrYqS3FFosY=",
"path": "golang.org/x/oauth2",
"revision": "3c3a985cb79f52a3190fbc056984415ca6763d01",
"revisionTime": "2016-08-26T23:14:08Z"
},
{
"checksumSHA1": "92TBjKPPMEcAfNqc2xWF8fSfZMg=",
"path": "golang.org/x/oauth2/google",
"revision": "3c3a985cb79f52a3190fbc056984415ca6763d01",
"revisionTime": "2016-08-26T23:14:08Z"
},
{
"checksumSHA1": "D3v/aqfB9swlaZcSksCoF+lbOqo=",
"path": "golang.org/x/oauth2/internal",
"revision": "3c3a985cb79f52a3190fbc056984415ca6763d01",
"revisionTime": "2016-08-26T23:14:08Z"
},
{
"checksumSHA1": "huVltYnXdRFDJLgp/ZP9IALzG7g=",
"path": "golang.org/x/oauth2/jws",
"revision": "3c3a985cb79f52a3190fbc056984415ca6763d01",
"revisionTime": "2016-08-26T23:14:08Z"
},
{
"checksumSHA1": "McqNj0/805YfYQJQGomeB0s+EcU=",
"path": "golang.org/x/oauth2/jwt",
"revision": "3c3a985cb79f52a3190fbc056984415ca6763d01",
"revisionTime": "2016-08-26T23:14:08Z"
},
{
"checksumSHA1": "oaglBTpGgEUgk7m92i6nuZbpicE=",
"path": "golang.org/x/text/encoding",
@ -356,6 +416,90 @@
"revision": "2910a502d2bf9e43193af9d68ca516529614eed3",
"revisionTime": "2016-07-21T22:28:28Z"
},
{
"checksumSHA1": "ij1heqr+F07H75D4og/yUqRFf3I=",
"path": "google.golang.org/api/dns/v1",
"revision": "a69f0f19d246419bb931b0ac8f4f8d3f3e6d4feb",
"revisionTime": "2016-09-08T23:39:41Z"
},
{
"checksumSHA1": "awFDzMy1r/KM9mrqgCI9WqkxXc8=",
"path": "google.golang.org/api/gensupport",
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},
{
"checksumSHA1": "ia5kPSNOC45E23oF6A00m976BHY=",
"path": "google.golang.org/api/googleapi",
"revision": "a69f0f19d246419bb931b0ac8f4f8d3f3e6d4feb",
"revisionTime": "2016-09-08T23:39:41Z"
},
{
"checksumSHA1": "1K0JxrUfDqAB3MyRiU1LKjfHyf4=",
"path": "google.golang.org/api/googleapi/internal/uritemplates",
"revision": "a69f0f19d246419bb931b0ac8f4f8d3f3e6d4feb",
"revisionTime": "2016-09-08T23:39:41Z"
},
{
"checksumSHA1": "BYNXzv50n5HWU4OpKBw9JlrKIRI=",
"path": "google.golang.org/appengine",
"revision": "c7b8227c83007befd67b324a64c969ebc1d7475d",
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},
{
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"path": "google.golang.org/appengine/internal",
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{
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"path": "google.golang.org/appengine/internal/app_identity",
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},
{
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{
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{
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},
{
"checksumSHA1": "XvQ3McEKtKXKcU4lL447qeKi1RM=",
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