Digitalocean provider (#171)

* Implement Digitalocean provider
* Vendor digitalocean lib
* Enable SRV for Digitalocean and fix the tests
* Test cname etc. records pointing to the same domain

vendor/github.com/digitalocean/godo/certificates.go

@@ -0,0 +1,122 @@
+package godo
+
+import (
+	"net/http"
+	"path"
+
+	"github.com/digitalocean/godo/context"
+)
+
+const certificatesBasePath = "/v2/certificates"
+
+// CertificatesService is an interface for managing certificates with the DigitalOcean API.
+// See: https://developers.digitalocean.com/documentation/v2/#certificates
+type CertificatesService interface {
+	Get(context.Context, string) (*Certificate, *Response, error)
+	List(context.Context, *ListOptions) ([]Certificate, *Response, error)
+	Create(context.Context, *CertificateRequest) (*Certificate, *Response, error)
+	Delete(context.Context, string) (*Response, error)
+}
+
+// Certificate represents a DigitalOcean certificate configuration.
+type Certificate struct {
+	ID              string `json:"id,omitempty"`
+	Name            string `json:"name,omitempty"`
+	NotAfter        string `json:"not_after,omitempty"`
+	SHA1Fingerprint string `json:"sha1_fingerprint,omitempty"`
+	Created         string `json:"created_at,omitempty"`
+}
+
+// CertificateRequest represents configuration for a new certificate.
+type CertificateRequest struct {
+	Name             string `json:"name,omitempty"`
+	PrivateKey       string `json:"private_key,omitempty"`
+	LeafCertificate  string `json:"leaf_certificate,omitempty"`
+	CertificateChain string `json:"certificate_chain,omitempty"`
+}
+
+type certificateRoot struct {
+	Certificate *Certificate `json:"certificate"`
+}
+
+type certificatesRoot struct {
+	Certificates []Certificate `json:"certificates"`
+	Links        *Links        `json:"links"`
+}
+
+// CertificatesServiceOp handles communication with certificates methods of the DigitalOcean API.
+type CertificatesServiceOp struct {
+	client *Client
+}
+
+var _ CertificatesService = &CertificatesServiceOp{}
+
+// Get an existing certificate by its identifier.
+func (c *CertificatesServiceOp) Get(ctx context.Context, cID string) (*Certificate, *Response, error) {
+	urlStr := path.Join(certificatesBasePath, cID)
+
+	req, err := c.client.NewRequest(ctx, http.MethodGet, urlStr, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	root := new(certificateRoot)
+	resp, err := c.client.Do(ctx, req, root)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return root.Certificate, resp, nil
+}
+
+// List all certificates.
+func (c *CertificatesServiceOp) List(ctx context.Context, opt *ListOptions) ([]Certificate, *Response, error) {
+	urlStr, err := addOptions(certificatesBasePath, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := c.client.NewRequest(ctx, http.MethodGet, urlStr, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	root := new(certificatesRoot)
+	resp, err := c.client.Do(ctx, req, root)
+	if err != nil {
+		return nil, resp, err
+	}
+	if l := root.Links; l != nil {
+		resp.Links = l
+	}
+
+	return root.Certificates, resp, nil
+}
+
+// Create a new certificate with provided configuration.
+func (c *CertificatesServiceOp) Create(ctx context.Context, cr *CertificateRequest) (*Certificate, *Response, error) {
+	req, err := c.client.NewRequest(ctx, http.MethodPost, certificatesBasePath, cr)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	root := new(certificateRoot)
+	resp, err := c.client.Do(ctx, req, root)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return root.Certificate, resp, nil
+}
+
+// Delete a certificate by its identifier.
+func (c *CertificatesServiceOp) Delete(ctx context.Context, cID string) (*Response, error) {
+	urlStr := path.Join(certificatesBasePath, cID)
+
+	req, err := c.client.NewRequest(ctx, http.MethodDelete, urlStr, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	return c.client.Do(ctx, req, nil)
+}