feat(callbacks): add beforeAddUsersToRoom callback for batch user additions to rooms

Author: ggazzo

apps/meteor/app/lib/server/methods/addUsersToRoom.ts

@@ -5,6 +5,7 @@ import { Subscriptions, Users, Rooms } from '@rocket.chat/models';
 import { Match } from 'meteor/check';
 import { Meteor } from 'meteor/meteor';
 
+import { beforeAddUsersToRoom } from '../../../../lib/callbacks/beforeAddUserToRoom';
 import { i18n } from '../../../../server/lib/i18n';
 import { hasPermissionAsync } from '../../../authorization/server/functions/hasPermission';
 import { addUserToRoom } from '../functions/addUserToRoom';
@@ -77,6 +78,8 @@ export const addUsersToRoomMethod = async (userId: string, data: { rid: string;
 		});
 	}
 
+	await beforeAddUsersToRoom.run({ usernames: data.users, inviter: user }, room);
+
 	await Promise.all(
 		data.users.map(async (username) => {
 			const newUser = await Users.findOneByUsernameIgnoringCase(username);

apps/meteor/ee/server/hooks/federation/index.ts

@@ -5,7 +5,7 @@ import { Rooms } from '@rocket.chat/models';
 import { callbacks } from '../../../../lib/callbacks';
 import { afterLeaveRoomCallback } from '../../../../lib/callbacks/afterLeaveRoomCallback';
 import { afterRemoveFromRoomCallback } from '../../../../lib/callbacks/afterRemoveFromRoomCallback';
-import { beforeAddUserToRoom } from '../../../../lib/callbacks/beforeAddUserToRoom';
+import { beforeAddUsersToRoom, beforeAddUserToRoom } from '../../../../lib/callbacks/beforeAddUserToRoom';
 import { beforeChangeRoomRole } from '../../../../lib/callbacks/beforeChangeRoomRole';
 import { FederationActions } from '../../../../server/services/room/hooks/BeforeFederationActions';
 
@@ -70,6 +70,12 @@ callbacks.add(
 	'native-federation-after-delete-message',
 );
 
+beforeAddUsersToRoom.add(async ({ usernames }, room) => {
+	if (FederationActions.shouldPerformFederationAction(room)) {
+		await FederationMatrix.ensureFederatedUsersExistLocally(usernames);
+	}
+});
+
 beforeAddUserToRoom.add(
 	async ({ user, inviter }, room) => {
 		if (!user.username || !inviter) {

apps/meteor/lib/callbacks/beforeAddUserToRoom.ts

@@ -3,3 +3,5 @@ import type { IUser, IRoom } from '@rocket.chat/core-typings';
 import { Callbacks } from './callbacksBase';
 
 export const beforeAddUserToRoom = Callbacks.create<(args: { user: IUser; inviter?: IUser }, room: IRoom) => void>('beforeAddUserToRoom');
+export const beforeAddUsersToRoom =
+	Callbacks.create<(args: { usernames: string[]; inviter?: IUser }, room: IRoom) => void>('beforeAddUsersToRoom');