Added a function to use the moderation functionality

src/plugins/videoroom-plugin.js

@@ -17,6 +17,7 @@ const REQUEST_JOIN_CONFIGURE = 'joinandconfigure';
 const REQUEST_LIST_PARTICIPANTS = 'listparticipants';
 const REQUEST_ENABLE_RECORDING = 'enable_recording';
 const REQUEST_KICK = 'kick';
+const REQUEST_MODERATE = 'moderate';
 const REQUEST_START = 'start';
 const REQUEST_PAUSE = 'pause';
 const REQUEST_SWITCH = 'switch';
@@ -56,6 +57,7 @@ const PLUGIN_EVENT = {
   LEAVING: 'videoroom_leaving',
   UPDATED: 'videoroom_updated',
   KICKED: 'videoroom_kicked',
+  MODERATED: 'videoroom_moderated',
   RECORDING_ENABLED_STATE: 'videoroom_recording_enabled_state',
   TALKING: 'videoroom_talking',
   SC_SUBSTREAM_LAYER: 'videoroom_sc_substream_layer',
@@ -590,6 +592,15 @@ class VideoRoomHandle extends Handle {
             janode_event.data.sc_temporal_layers = message_data.temporal;
             break;
           }
+          /* Publisher moderated, i.e. a track has been muted or unmuted */
+          if (typeof message_data.moderation !== 'undefined') {
+            janode_event.event = PLUGIN_EVENT.MODERATED;
+            janode_event.data.feed = message_data.id;
+            janode_event.data.mid = message_data.mid;
+            janode_event.data.moderation = message_data.moderation;
+            break;
+          }
+
       }
 
       /* The event has been handled */
@@ -1187,6 +1198,29 @@ class VideoRoomHandle extends Handle {
     throw (error);
   }
 
+  async moderate({ room, feed, mID, mute, secret }) {
+    const body = {
+      request: REQUEST_MODERATE,
+      room,
+      id: feed,
+      mid: mID,
+      mute
+    };
+    if (typeof secret === 'string') body.secret = secret;
+
+    const response = await this.message(body);
+    const { event, data: evtdata } = this._getPluginEvent(response);
+    if (event === PLUGIN_EVENT.SUCCESS) {
+      evtdata.room = body.room;
+      evtdata.feed = body.id;
+      evtdata.mid = body.mid;
+      evtdata.mute = body.mute;
+      return evtdata;
+    }
+    const error = new Error(`unexpected response to ${body.request} request`);
+    throw (error);
+  }
+
   /**
    * Check if a room exists.
    *
@@ -1479,7 +1513,7 @@ class VideoRoomHandle extends Handle {
  * @typedef {Object} VIDEOROOM_EVENT_PUB_JOINED
  * @property {number|string} room - The involved room
  * @property {number|string} feed - The feed identifier
- * @property {string} [display] - The dsplay name, if available
+ * @property {string} [display] - The display name, if available
  * @property {string} description - A description of the room, if available
  * @property {number} private_id - The private id that can be used when subscribing
  * @property {object[]} publishers - The list of active publishers
@@ -1676,6 +1710,16 @@ class VideoRoomHandle extends Handle {
  * @property {number|string} feed - The feed that has been kicked
  */
 
+/**
+ * A publisher has been moderated (muted or unmuted)
+ *
+ * @typedef {Object} VIDEOROOM_EVENT_MODERATED
+ * @property {number|string} room - The involved room
+ * @property {number|string} feed - The feed that has been moderated
+ * @property {string} mid - The mid of the moderated track
+ * @property {'muted'|'unmuted' } moderation - The moderation action taken
+ */
+
 /**
  * The response event for the recording enabled request.
  *
@@ -1710,6 +1754,7 @@ class VideoRoomHandle extends Handle {
  * @property {string} EVENT.VIDEOROOM_SLOWLINK {@link module:videoroom-plugin~VideoRoomHandle#event:VIDEOROOM_SLOWLINK VIDEOROOM_SLOWLINK}
  * @property {string} EVENT.VIDEOROOM_TALKING {@link module:videoroom-plugin~VideoRoomHandle#event:VIDEOROOM_TALKING VIDEOROOM_TALKING}
  * @property {string} EVENT.VIDEOROOM_KICKED {@link module:videoroom-plugin~VideoRoomHandle#event:VIDEOROOM_KICKED VIDEOROOM_KICKED}
+ * @property {string} EVENT.VIDEOROOM_MODERATED {@link module:videoroom-plugin~VideoRoomHandle#event:VIDEOROOM_MODERATED VIDEOROOM_MODERATED}
  * @property {string} EVENT.VIDEOROOM_RECORDING_ENABLED_STATE {@link module:videoroom-plugin~VideoRoomHandle#event:VIDEOROOM_RECORDING_ENABLED_STATE VIDEOROOM_RECORDING_ENABLED_STATE}
  * @property {string} EVENT.VIDEOROOM_SC_SUBSTREAM_LAYER {@link module:videoroom-plugin~VideoRoomHandle#event:VIDEOROOM_SC_SUBSTREAM_LAYER VIDEOROOM_SC_SUBSTREAM_LAYER}
  * @property {string} EVENT.VIDEOROOM_SC_TEMPORAL_LAYERS {@link module:videoroom-plugin~VideoRoomHandle#event:VIDEOROOM_SC_TEMPORAL_LAYERS VIDEOROOM_SC_TEMPORAL_LAYERS}
@@ -1841,6 +1886,18 @@ export default {
      */
     VIDEOROOM_KICKED: PLUGIN_EVENT.KICKED,
 
+    /**
+     * A publisher has been moderated (muted or unmuted)
+     *
+     * @event module:videoroom-plugin~VideoRoomHandle#event:VIDEOROOM_MODERATED
+     * @type {Object}
+     * @property {number|string} room - The involved room
+     * @property {number|string} feed - The feed that has been moderated
+     * @property {string} mid - The mid of the moderated track
+     * @property {'muted'|'unmuted' } moderation - The moderation action taken
+     */
+    VIDEOROOM_MODERATED: PLUGIN_EVENT.MODERATED,
+
     /**
      * Conference recording has been enabled or disabled.
      *