Add "close meeting" function for moderator

app/src/RoomClient.js

@@ -1178,6 +1178,26 @@ export default class RoomClient
 			roomActions.setStopAllVideoInProgress(false));
 	}
 
+	async closeMeeting()
+	{
+		logger.debug('closeMeeting()');
+
+		store.dispatch(
+			roomActions.setCloseMeetingInProgress(true));
+
+		try
+		{
+			await this.sendRequest('moderator:closeMeeting');
+		}
+		catch (error)
+		{
+			logger.error('closeMeeting() failed: %o', error);
+		}
+
+		store.dispatch(
+			roomActions.setCloseMeetingInProgress(false));
+	}
+
 	// type: mic/webcam/screen
 	// mute: true/false
 	async modifyPeerConsumer(peerId, type, mute)

app/src/actions/roomActions.js

@@ -122,3 +122,9 @@ export const setStopAllVideoInProgress = (flag) =>
 		type    : 'STOP_ALL_VIDEO_IN_PROGRESS',
 		payload : { flag }
 	});
+
+export const setCloseMeetingInProgress = (flag) =>
+	({
+		type    : 'CLOSE_MEETING_IN_PROGRESS',
+		payload : { flag }
+	});

app/src/components/MeetingDrawer/ParticipantList/ListModerator.js

@@ -71,6 +71,23 @@ const ListModerator = (props) =>
 					defaultMessage='Stop all video'
 				/>
 			</Button>
+			<div className={classes.divider} />
+			<Button
+				aria-label={intl.formatMessage({
+					id             : 'room.closeMeeting',
+					defaultMessage : 'Close meeting'
+				})}
+				className={classes.actionButton}
+				variant='contained'
+				color='secondary'
+				disabled={room.closeMeetingInProgress}
+				onClick={() => roomClient.closeMeeting()}
+			>
+				<FormattedMessage
+					id='room.closeMeeting'
+					defaultMessage='Close meeting'
+				/>
+			</Button>
 		</div>
 	);
 };

app/src/reducers/room.js

@@ -18,7 +18,10 @@ const initialState =
 	spotlights             : [],
 	settingsOpen           : false,
 	lockDialogOpen         : false,
-	joined             : false
+	joined                 : false,
+	muteAllInProgress      : false,
+	stopAllVideoInProgress : false,
+	closeMeetingInProgress : false
 };
 
 const room = (state = initialState, action) =>
@@ -169,6 +172,9 @@ const room = (state = initialState, action) =>
 		case 'STOP_ALL_VIDEO_IN_PROGRESS':
 			return { ...state, stopAllVideoInProgress: action.payload.flag };
 
+		case 'CLOSE_MEETING_IN_PROGRESS':
+			return { ...state, closeMeetingInProgress: action.payload.flag };
+
 		default:
 			return state;
 	}

server/lib/Room.js

@@ -1105,6 +1105,33 @@ class Room extends EventEmitter
 				break;
 			}
 
+			case 'moderator:closeMeeting':
+			{
+				if (
+					!peer.hasRole(userRoles.MODERATOR) &&
+					!peer.hasRole(userRoles.ADMIN)
+				)
+					throw new Error('peer does not have moderator priveleges');
+
+				this._notification(
+					peer.socket,
+					'moderator:kick',
+					null,
+					true
+				);
+
+				// Close the peers.
+				for (const kickedPeer in this._peers)
+				{
+					if (peer !== kickedPeer)
+						kickedPeer.close();
+				}
+
+				cb();
+
+				break;
+			}
+
 			case 'moderator:kickPeer':
 			{
 				if (