feat(xmpp): Parses permissions extension from self-presence.

JitsiConferenceEventManager.js

@@ -51,6 +51,8 @@ JitsiConferenceEventManager.prototype.setupChatRoomListeners = function() {
         }
     });
 
+    this.chatRoomForwarder.forward(XMPPEvents.PERMISSIONS_RECEIVED, JitsiConferenceEvents.PERMISSIONS_RECEIVED);
+
     chatRoom.addListener(XMPPEvents.AUDIO_MUTED_BY_FOCUS,
         actor => {
             // TODO: Add a way to differentiate between commands which caused

JitsiConferenceEvents.spec.ts

@@ -34,6 +34,7 @@ describe( "/JitsiConferenceEvents members", () => {
         KICKED,
         PARTICIPANT_KICKED,
         PARTICIPANT_SOURCE_UPDATED,
+        PERMISSIONS_RECEIVED,
         LAST_N_ENDPOINTS_CHANGED,
         FORWARDED_SOURCES_CHANGED,
         LOCK_STATE_CHANGED,
@@ -119,6 +120,7 @@ describe( "/JitsiConferenceEvents members", () => {
         expect( KICKED ).toBe( 'conference.kicked' );
         expect( PARTICIPANT_KICKED ).toBe( 'conference.participant_kicked' );
         expect( PARTICIPANT_SOURCE_UPDATED ).toBe( 'conference.participant_source_updated' );
+        expect( PERMISSIONS_RECEIVED ).toBe( 'conference.permissions_received' );
         expect( LAST_N_ENDPOINTS_CHANGED ).toBe( 'conference.lastNEndpointsChanged' );
         expect( FORWARDED_SOURCES_CHANGED ).toBe( 'conference.forwardedSourcesChanged' );
         expect( LOCK_STATE_CHANGED ).toBe( 'conference.lock_state_changed' );

JitsiConferenceEvents.ts

@@ -323,6 +323,11 @@ export enum JitsiConferenceEvents {
      */
     PARTICIPANT_SOURCE_UPDATED = 'conference.participant_source_updated',
 
+    /**
+     * Indicates that the permissions for the local participant were updated.
+     */
+    PERMISSIONS_RECEIVED = 'conference.permissions_received',
+
     /**
      * Indicates that phone number changed.
      */
@@ -560,6 +565,7 @@ export const NON_PARTICIPANT_MESSAGE_RECEIVED = JitsiConferenceEvents.NON_PARTIC
 export const P2P_STATUS = JitsiConferenceEvents.P2P_STATUS;
 export const PARTICIPANT_KICKED = JitsiConferenceEvents.PARTICIPANT_KICKED;
 export const PARTICIPANT_SOURCE_UPDATED = JitsiConferenceEvents.PARTICIPANT_SOURCE_UPDATED;
+export const PERMISSIONS_RECEIVED = JitsiConferenceEvents.PERMISSIONS_RECEIVED;
 export const PRIVATE_MESSAGE_RECEIVED = JitsiConferenceEvents.PRIVATE_MESSAGE_RECEIVED;
 export const PARTCIPANT_FEATURES_CHANGED = JitsiConferenceEvents.PARTCIPANT_FEATURES_CHANGED;
 export const PARTICIPANT_PROPERTY_CHANGED = JitsiConferenceEvents.PARTICIPANT_PROPERTY_CHANGED;

modules/xmpp/ChatRoom.js

@@ -676,6 +676,22 @@ export default class ChatRoom extends Listenable {
                 // meeting Id if any
                 !this.options.disableDiscoInfo && this.discoRoomInfo();
             }
+
+            if (xElement && $(xElement).find('>status[code="110"]').length) {
+                // let's check for some backend forced permissions
+
+                const permissions = $(pres).find('>permissions[xmlns="http://jitsi.org/jitmeet"]>p');
+
+                if (permissions.length) {
+                    const permissionsMap = {};
+
+                    permissions.each((idx, p) => {
+                        permissionsMap[p.getAttribute('name')] = p.getAttribute('val');
+                    });
+
+                    this.eventEmitter.emit(XMPPEvents.PERMISSIONS_RECEIVED, permissionsMap);
+                }
+            }
         } else if (jid === undefined) {
             logger.info('Ignoring member with undefined JID');
         } else if (this.members[from] === undefined) {

service/xmpp/XMPPEvents.ts

@@ -245,6 +245,11 @@ export enum XMPPEvents {
 
     PASSWORD_REQUIRED = 'xmpp.password_required',
 
+    /**
+     * Event fired when we receive a self-presence with permissions.
+     */
+    PERMISSIONS_RECEIVED = 'xmpp.permissions_received',
+
     /**
      * Indicates that phone number changed.
      */