Rocket.Chat/packages/rocketchat-slashcommands-inviteall/server.js

/*
 * Invite is a named function that will replace /invite commands
 * @param {Object} message - The message object
 */

function inviteAll(type) {

	return function inviteAll(command, params, item) {

		if (!/invite\-all-(to|from)/.test(command) || !Match.test(params, String)) {
			return;
		}

		const regexp = /#?([\d-_\w]+)/g;
		const [, channel] = regexp.exec(params.trim());

		if (!channel) {
			return;
		}

		const currentUser = Meteor.users.findOne(Meteor.userId());
		const baseChannel = type === 'to' ? RocketChat.models.Rooms.findOneById(item.rid) : RocketChat.models.Rooms.findOneByName(channel);
		const targetChannel = type === 'from' ? RocketChat.models.Rooms.findOneById(item.rid) : RocketChat.models.Rooms.findOneByName(channel);

		if (!baseChannel) {
			return RocketChat.Notifications.notifyUser(Meteor.userId(), 'message', {
				_id: Random.id(),
				rid: item.rid,
				ts: new Date(),
				msg: TAPi18n.__('Channel_doesnt_exist', {
					postProcess: 'sprintf',
					sprintf: [channel]
				}, currentUser.language)
			});
		}
		const users = baseChannel.usernames || [];

		try {
			if (users.length > RocketChat.settings.get('API_User_Limit')) {
				throw new Meteor.Error('error-user-limit-exceeded', 'User Limit Exceeded', {
					method: 'addAllToRoom'
				});
			}

			if (!targetChannel && ['c', 'p'].indexOf(baseChannel.t) > -1) {
				Meteor.call(baseChannel.t === 'c' ? 'createChannel' : 'createPrivateGroup', channel, users);
				RocketChat.Notifications.notifyUser(Meteor.userId(), 'message', {
					_id: Random.id(),
					rid: item.rid,
					ts: new Date(),
					msg: TAPi18n.__('Channel_created', {
						postProcess: 'sprintf',
						sprintf: [channel]
					}, currentUser.language)
				});
			} else {
				Meteor.call('addUsersToRoom', {
					rid: targetChannel._id,
					users
				});
			}
			return RocketChat.Notifications.notifyUser(Meteor.userId(), 'message', {
				_id: Random.id(),
				rid: item.rid,
				ts: new Date(),
				msg: TAPi18n.__('Users_added', null, currentUser.language)
			});
		} catch (e) {
			const msg = e.error === 'cant-invite-for-direct-room' ? 'Cannot_invite_users_to_direct_rooms' : e.error;
			RocketChat.Notifications.notifyUser(Meteor.userId(), 'message', {
				_id: Random.id(),
				rid: item.rid,
				ts: new Date(),
				msg: TAPi18n.__(msg, null, currentUser.language)
			});
		}
	};
}
RocketChat.slashCommands.add('invite-all-to', inviteAll('to'));
RocketChat.slashCommands.add('invite-all-from', inviteAll('from'));
module.exports = inviteAll;