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Object.defineProperty(exports, "__esModule", { value: true }); var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; Eif ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { Eif (protoProps) defineProperties(Constructor.prototype, protoProps); Iif (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); var _async = require('async'); var _async2 = _interopRequireDefault(_async); var _utils = require('../utils'); var _utils2 = _interopRequireDefault(_utils); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } var ChatRooms = function () { /** * Constructor. * * @param api API reference. */ /** * List of globals middleware. * * @type {Array} */ /** * API reference. * * @type {null} */ function ChatRooms(api) { _classCallCheck(this, ChatRooms); this.api = null; this.keys = { rooms: 'stellar:chatRoom:rooms', members: 'stellar:chatRoom:members' }; this.globalMiddleware = []; this.middleware = {}; this.api = api; } /** * Add a new middleware to the chat room manager. * * @param data Middleware object. */ /** * List of all middleware. * * @type {{}} */ /** * Keys to use to save rooms and members on redis server. * * @type {{rooms: string, members: string}} */ _createClass(ChatRooms, [{ key: 'addMiddleware', value: function addMiddleware(data) { var self = this; // middleware must have a name Iif (!data.name) { throw new Error('middleware.name is required'); } // if the middleware don't have a priority set a default value Eif (!data.priority) { data.priority = self.api.config.general.defaultMiddlewarePriority; } // ensure the priority is a number data.priority = Number(data.priority); // save the middleware object self.middleware[data.name] = data; // push the middleware name to the globalMiddleware self.globalMiddleware.push(data.name); // sort the globalMiddleware by priority self.globalMiddleware.sort(function (a, b) { Iif (self.middleware[a].priority > self.middleware[b].priority) { return 1; } else { return -1; } }); } /** * Broadcast a message in a room. * * @param connection Source connection. * @param room Room here the message need to be broadcast. * @param message Message to broadcast. * @param callback Callback function. */ }, { key: 'broadcast', value: function broadcast(connection, room, message, callback) { var self = this; // check if the room are present Iif (!room || room.length === 0 || message === null || message.length === 0) { if (typeof callback === 'function') { process.nextTick(function () { return callback(self.api.config.errors.connectionRoomAndMessage(connection)); }); } } else Eif (connection.rooms === undefined || connection.rooms.indexOf(room) > -1) { // set id zero for default if there no one present if (connection.id === undefined) { connection.id = 0; } // create a new payload var payload = { messageType: 'chat', serverToken: self.api.config.general.serverToken, serverId: self.api.id, message: message, sentAt: new Date().getTime(), connection: { id: connection.id, room: room } }; // generate the message payload var messagePayload = self._generateMessagePayload(payload); // handle callbacks self._handleCallbacks(connection, messagePayload.room, 'onSayReceive', messagePayload, function (error, newPayload) { // if an error occurs execute the callback and send the error with him Iif (error) { if (typeof callback === 'function') { process.nextTick(function () { callback(error); }); } return; } // create the payload to send var payloadToSend = { messageType: 'chat', serverToken: self.api.config.general.serverToken, serverId: self.api.id, message: newPayload.message, sentAt: newPayload.sentAt, connection: { id: newPayload.from, room: newPayload.room } }; // send the payload to redis self.api.redis.publish(payloadToSend); // execute the callback Eif (typeof callback === 'function') { process.nextTick(function () { callback(null); }); } }); } else { if (typeof callback === 'function') { process.nextTick(function () { callback(self.api.config.errors.connectionNotInRoom(connection, room)); }); } } } /** * Process an incoming message. * * @param message Incoming message to be processed. */ }, { key: 'incomingMessage', value: function incomingMessage(message) { var self = this; // generate the message payload var messagePayload = self._generateMessagePayload(message); // iterate all connection for (var i in self.api.connections.connections) { self._incomingMessagePerConnection(self.api.connections.connections[i], messagePayload); } } /** * List rooms. * * @param callback */ }, { key: 'list', value: function list(callback) { var self = this; self.api.redis.clients.client.smembers(self.api.chatRoom.keys.rooms, function (error, rooms) { if (typeof callback === 'function') { callback(error, rooms); } }); } /** * Create a new room. * * @param room Name of the room to be created. * @param callback Callback function. */ }, { key: 'add', value: function add(room, callback) { var self = this; // check if the room already exists self.exists(room, function (err, found) { // if the room already exists return an error if (found === true) { Iif (typeof callback === 'function') { callback(self.api.config.errors.connectionRoomExists(room), null); } return; } // create a new room self.api.redis.clients.client.sadd(self.keys.rooms, room, function (err, count) { Iif (typeof callback === 'function') { callback(err, count); } }); }); } /** * Destroy a room. * * @param room Room to be destroyed. * @param callback Callback function. */ }, { key: 'destroy', value: function destroy(room, callback) { var self = this; // check if the room exists self.exists(room, function (error, found) { // return an error if the room not exists if (found === false) { if (typeof callback === 'function') { callback(self.api.config.errors.connectionRoomNotExist(room), null); } return; } // broadcast the room destruction self.broadcast({}, room, self.api.config.errors.connectionRoomHasBeenDeleted(room), function () { // get all room members self.api.redis.clients.client.hgetall(self.keys.members + room, function (error, memberHash) { // remove each member from the room for (var id in memberHash) { self.removeMember(id, room); } // delete de room on redis server self.api.redis.clients.client.srem(self.keys.rooms, room, function () { if (typeof callback === 'function') { callback(); } }); }); }); }); } /** * Check if the given room exists. * * @param room Name of the room. * @param callback Callback function. */ }, { key: 'exists', value: function exists(room, callback) { var self = this; // make a call to the redis server to check if the room exists self.api.redis.clients.client.sismember(self.keys.rooms, room, function (err, bool) { var found = false; if (bool === 1 || bool === true) { found = true; } // execute the callback Eif (typeof callback === 'function') { callback(err, found); } }); } /** * Get the status of a room. * * @param room Name of the room to check. * @param callback Callback function. */ }, { key: 'roomStatus', value: function roomStatus(room, callback) { var self = this; // we need a room to check their status Iif (room === undefined || room === null) { if (typeof callback === 'function') { callback(self.api.config.errors.connectionRoomRequired(), null); } return; } // check if the room exists self.exists(room, function (err, found) { // the room need exists Iif (found !== true) { if (typeof callback === 'function') { callback(self.api.config.errors.connectionRoomNotExist(room), null); } return; } // generate the key var key = self.keys.members + room; // get all channel members self.api.redis.clients.client.hgetall(key, function (error, members) { var cleanedMembers = {}; var count = 0; // iterate all members and add them to the list of members for (var id in members) { var data = JSON.parse(members[id]); cleanedMembers[id] = self._sanitizeMemberDetails(data); count++; } // execute the callback callback(null, { room: room, members: cleanedMembers, membersCount: count }); }); }); } /** * Add a new member to a room. * * @param connectionId Connection ID. * @param room Room name where the client must be added. * @param callback Callback function. */ }, { key: 'addMember', value: function addMember(connectionId, room, callback) { var self = this; // if the connection not exists create a new one in every stellar instance and return Iif (!self.api.connections.connections[connectionId]) { self.api.redis.doCluster('api.chatRoom.addMember', [connectionId, room], connectionId, callback); return; } // get connection object var connection = self.api.connections.connections[connectionId]; // verifies that the connection is already within the room, if yes return now if (connection.rooms.indexOf(room) > -1) { Eif (typeof callback === 'function') { callback(self.api.config.errors.connectionAlreadyInRoom(connection, room), false); } return; } // check if the room exists self.exists(room, function (error, found) { Iif (found !== true) { if (typeof callback === 'function') { callback(self.api.config.errors.connectionRoomNotExist(room), false); } return; } self._handleCallbacks(connection, room, 'join', null, function (error) { // if exists an error, execute the callback and return Iif (error) { return callback(error, false); } // generate the member details var memberDetails = self._generateMemberDetails(connection); self.api.redis.clients.client.hset(self.keys.members + room, connection.id, JSON.stringify(memberDetails), function () { connection.rooms.push(room); Eif (typeof callback === 'function') { callback(null, true); } }); }); }); } /** * Remove a client from a chat room. * * @param connectionId Client connection object. * @param room Room name. * @param callback Callback. */ }, { key: 'removeMember', value: function removeMember(connectionId, room, callback) { var self = this; // if the connection does not exists on the connections array perform a remove // member on the cluster Iif (self.api.connections.connections[connectionId] === undefined) { self.api.redis.doCluster('api.chatRoom.removeMember', [connectionId, room], connectionId, callback); return; } var connection = self.api.connections.connections[connectionId]; // check if the client is connected with the room if (connection.rooms.indexOf(room) < 0) { Eif (typeof callback === 'function') { callback(self.api.config.errors.connectionNotInRoom(connection, room), false); } return; } // check if the room exists self.exists(room, function (error, found) { // if the room has not been found returned an error Iif (found === false) { if (typeof callback === 'function') { callback(self.api.config.errors.connectionRoomNotExist(room), false); } return; } // passes the response by the middleware self._handleCallbacks(connection, room, 'leave', null, function (error) { // execute the callback and return the error Iif (error) { return callback(error, false); } // remove the user self.api.redis.clients.client.hdel(self.keys.members + room, connection.id, function () { // get the room index var index = connection.rooms.indexOf(room); // remove room from the rooms array Eif (index > -1) { connection.rooms.splice(index, 1); } // execute the callback Eif (typeof callback === 'function') { callback(null, true); } }); }); }); } // --------------------------------------------------------------------------------------------------------- [Private] /** * Generate a new object with member details. * * @param connection Connection object. * @returns {{id: *, joinedAt: number, host: *}} * @private */ }, { key: '_generateMemberDetails', value: function _generateMemberDetails(connection) { var self = this; return { id: connection.id, joinedAt: new Date().getTime(), host: self.api.id }; } /** * Generate a new message payload. * * @param message Base message. * @returns {{message: *, room: *, from: *, context: string, sendAt: *}} * @private */ }, { key: '_generateMessagePayload', value: function _generateMessagePayload(message) { return { message: message.message, room: message.connection.room, from: message.connection.id, context: 'user', sentAt: message.sentAt }; } /** * Handle the redis callbacks. * * This apply all global middleware for each callback response. * * @param connection Connection object. * @param room Room name. * @param direction Message direction. * @param messagePayload Message payload. * @param callback Callback function. * @private */ }, { key: '_handleCallbacks', value: function _handleCallbacks(connection, room, direction, messagePayload, callback) { var self = this; var jobs = []; var newMessagePayload = void 0; // if the message payload are defined create a clone if (messagePayload) { newMessagePayload = _utils2.default.objClone(messagePayload); } // apply global middleware self.globalMiddleware.forEach(function (name) { // get middleware object var m = self.middleware[name]; // the middleware should be a function if (typeof m[direction] !== 'function') { return; } // push a new job to the queue jobs.push(function (callback) { if (messagePayload) { m[direction](connection, room, newMessagePayload, function (error, data) { if (data) { newMessagePayload = data; } callback(error, data); }); return; } // execute the middleware without the payload m[direction](connection, room, callback); }); }); // execute all middleware _async2.default.series(jobs, function (error, data) { while (data.length > 0) { var thisData = data.shift(); // change the new message object to the next middleware use it if (thisData) { newMessagePayload = thisData; } } // execute the next middleware callback(error, newMessagePayload); }); } /** * Sanitize member details. * * @param memberData Member details to be sanitized. * @returns {{id: *, joinedAt: *}} Sanitized * @private */ }, { key: '_sanitizeMemberDetails', value: function _sanitizeMemberDetails(memberData) { return { id: memberData.id, joinedAt: memberData.joinedAt }; } /** * Process a incoming connection for a connection object. * * @param connection Connection object. * @param messagePayload Message payload to be sent. * @private */ }, { key: '_incomingMessagePerConnection', value: function _incomingMessagePerConnection(connection, messagePayload) { var self = this; // check if the connection can chat Iif (connection.canChat !== true) { return; } // check if the connection made part of the room if (connection.rooms.indexOf(messagePayload.room) < 0) { return; } // apply the middleware self._handleCallbacks(connection, messagePayload.room, 'say', messagePayload, function (err, newMessagePayload) { Eif (!err) { connection.sendMessage(newMessagePayload, 'say'); } }); } }]); return ChatRooms; }(); /** * Initializer. */ var _class = function () { function _class() { _classCallCheck(this, _class); this.loadPriority = 520; this.startPriority = 200; } /** * Initializer load priority. * * @type {number} */ /** * Initializer start priority. * * @type {number} */ _createClass(_class, [{ key: 'load', /** * Initializer loading function. * * @param api API reference. * @param next Callback. */ value: function load(api, next) { // put the chat room interface available to all system api.chatRoom = new ChatRooms(api); // end the initializer loading next(); } /** * Initializer starting function. * * @param api API reference. * @param next Callback. */ }, { key: 'start', value: function start(api, next) { // subscribe new chat messages on the redis server api.redis.subscriptionHandlers['chat'] = function (message) { api.chatRoom.incomingMessage(message); }; // check if we need to create some starting chat rooms Eif (api.config.general.startingChatRooms) { for (var room in api.config.general.startingChatRooms) { api.log('ensuring the existence of the chatRoom: ' + room); api.chatRoom.add(room); } } // end the initializer starting next(); } }]); return _class; }(); exports.default = _class; //# sourceMappingURL=chatRooms.js.map |