Added API call for listing devices by groups

doc/API/API-Docs.md

@@ -22,6 +22,7 @@
         - [`get_device_groups`](#api-route-get_device_groups)
     - [`devicegroups`](#api-devicegroups)
         - [`get_devicegroups`](#api-route-get_devicegroups)
+        - [`get_devices_by_group`](#api-route-get_devices_by_group)
     - [`routing`](#api-routing)
         - [`list_bgp`](#api-route-1)
     - [`switching`](#api-switching)
@@ -472,6 +473,8 @@ Update devices field in the database.
 
 Route: /api/v0/devices/:hostname
 
+- hostname can be either the device hostname or id
+
 Input (JSON):
 
   - field: The column name within the database
@@ -499,6 +502,8 @@ List the device groups that a device is matched on.
 
 Route: /api/v0/devices/:hostname/groups
 
+- hostname can be either the device hostname or id
+
 Input (JSON):
 
   -
@@ -563,6 +568,82 @@ Output:
 ]
 ```
 
+### <a name="api-route-get_devices_by_group">Function `get_devices_by_group`</a> [`top`](#top)
+
+List all devices matching the group provided.
+
+Route: /api/v0/devicegroups/:name
+
+- name Is the name of the device group which can be obtained using [`get_devicegroups`](#api-route-get_devicegroups). Please ensure that the name is urlencoded if it needs to be (i.e Linux Servers would need to be urlencoded.
+
+Input (JSON):
+
+  -
+
+Examples:
+```curl
+curl -H 'X-Auth-Token: YOURAPITOKENHERE' https://librenms.org/api/v0/devicegroups/LinuxServers
+```
+
+Output:
+```text
+[
+     {
+         "status": "error",
+         "message": "Found 1 in group LinuxServers",
+         "count": 1,
+         "devices": [
+             {
+                 "device_id": "1",
+                 "hostname": "localhost",
+                 "sysName": "hostname",
+                 "community": "librenms",
+                 "authlevel": null,
+                 "authname": null,
+                 "authpass": null,
+                 "authalgo": null,
+                 "cryptopass": null,
+                 "cryptoalgo": null,
+                 "snmpver": "v2c",
+                 "port": "161",
+                 "transport": "udp",
+                 "timeout": null,
+                 "retries": null,
+                 "bgpLocalAs": null,
+                 "sysObjectID": ".1.3.6.1.4.1.8072.3.2.10",
+                 "sysDescr": "Linux li1045-133.members.linode.com 4.1.5-x86_64-linode61 #7 SMP Mon Aug 24 13:46:31 EDT 2015 x86_64",
+                 "sysContact": "",
+                 "version": "4.1.5-x86_64-linode61",
+                 "hardware": "Generic x86 64-bit",
+                 "features": "CentOS 7.1.1503",
+                 "location": "",
+                 "os": "linux",
+                 "status": "1",
+                 "status_reason": "",
+                 "ignore": "0",
+                 "disabled": "0",
+                 "uptime": "4615964",
+                 "agent_uptime": "0",
+                 "last_polled": "2015-12-12 13:20:04",
+                 "last_poll_attempted": null,
+                 "last_polled_timetaken": "1.90",
+                 "last_discovered_timetaken": "79.53",
+                 "last_discovered": "2015-12-12 12:34:21",
+                 "last_ping": "2015-12-12 13:20:04",
+                 "last_ping_timetaken": "0.08",
+                 "purpose": null,
+                 "type": "server",
+                 "serial": null,
+                 "icon": null,
+                 "poller_group": "0",
+                 "override_sysLocation": "0",
+                 "notes": "Nope"
+             }
+         ]
+     }
+]
+```
+
 ## <a name="api-routing">`Routing`</a> [`top`](#top)
 
 ### <a name="api-route-1">Function: `list_bgp`</a> [`top`](#top)

html/api_v0.php

@@ -62,6 +62,12 @@ $app->group(
                 // api/v0/devices
                 $app->post('/devices', 'authToken', 'add_device')->name('add_device');
                 // api/v0/devices (json data needs to be passed)
+                $app->group(
+                    '/devicegroups',
+                    function () use ($app) {
+                        $app->get('/:name', 'authToken', 'get_devices_by_group')->name('get_devices_by_group');
+                    }
+                );
                 $app->get('/devicegroups', 'authToken', 'get_device_groups')->name('get_devicegroups');
                 $app->group(
                     '/portgroups',

html/includes/api_functions.inc.php

@@ -1048,3 +1048,38 @@ function get_device_groups() {
     $app->response->headers->set('Content-Type', 'application/json');
     echo _json_encode($output);
 }
+
+function get_devices_by_group() {
+    $app      = \Slim\Slim::getInstance();
+    $router   = $app->router()->getCurrentRoute()->getParams();
+    $status   = 'error';
+    $code     = 404;
+    $name = urldecode($router['name']);
+    $devices = array();
+    if (empty($name)) {
+        $message = 'No device group name provided';
+    }
+    else {
+        $group_id = dbFetchCell("SELECT `id` FROM `device_groups` WHERE `name`=?",array($name));
+        $devices = GetDevicesFromGroup($group_id);
+        $count = count($devices);
+        if (empty($devices)) {
+            $message = 'No devices found in group ' . $name;
+        }
+        else {
+            $message = "Found $count in group $name";
+            $code = 200;
+        }
+    }
+    $output = array(
+        'status'  => $status,
+        'message' => $message,
+        'count'   => $count,
+        'devices' => $devices,
+    );
+
+    $app->response->setStatus($code);
+    $app->response->headers->set('Content-Type', 'application/json');
+    echo _json_encode($output);
+
+}

includes/device-groups.inc.php

@@ -66,7 +66,7 @@ function GenGroupSQL($pattern, $search='') {
         $search .= ' &&';
     }
 
-    $sql = 'SELECT DISTINCT('.str_replace('(', '', $tables[0]).'.device_id) FROM '.implode(',', $tables).' WHERE '.$search.' ('.str_replace(array('%', '@', '!~', '~'), array('', '.*', 'NOT REGEXP', 'REGEXP'), $pattern).')';
+    $sql = 'SELECT DISTINCT('.str_replace('(', '', $tables[0]).'.device_id),`devices`.* FROM '.implode(',', $tables).' WHERE '.$search.' ('.str_replace(array('%', '@', '!~', '~'), array('', '.*', 'NOT REGEXP', 'REGEXP'), $pattern).')';
     return $sql;
 
 }//end GenGroupSQL()