ms/packages/websocket/src/socket-io/namespace.ts

139 lines
4.1 KiB
TypeScript

import { EventEmitter } from 'events'
import { Client } from './client'
import { SocketIO } from './interfaces';
import { ServerEvent } from './constants';
import { Socket } from './socket';
import { Adapter } from './adapter';
import { Server } from './index'
import { Packet } from './packet';
import { PacketTypes, SubPacketTypes } from './types';
export class Namespace extends EventEmitter implements SocketIO.Namespace {
name: string;
server: Server;
sockets: { [id: string]: Socket; };
connected: { [id: string]: Socket; };
adapter: SocketIO.Adapter;
json: SocketIO.Namespace;
fns: any[];
ids: number;
rooms: string[];
flags: { [key: string]: boolean };
private events = ['connect', 'connection', 'newListener']
constructor(name: string, server: Server) {
super();
this.name = name;
this.server = server;
this.sockets = {};
this.connected = {};
this.fns = [];
this.ids = 0;
this.rooms = [];
this.flags = {};
this.adapter = new Adapter(this);
}
initAdapter() {
// @ts-ignore
this.adapter = new (this.server.adapter())()
}
add(client: Client, query?: any, callback?: () => void) {
// client.conn.request.url();
let socket = new Socket(this, client, {});
this.sockets[client.id] = socket;
client.nsps[this.name] = socket;
this.onconnection(socket);
return socket;
}
del(client: Client) {
let socket = this.sockets[client.id];
socket.disconnect();
delete this.sockets[client.id];
}
use(fn: (socket: SocketIO.Socket, fn: (err?: any) => void) => void): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
to(room: string): SocketIO.Namespace {
if (!~this.rooms.indexOf(room)) this.rooms.push(room);
return this;
}
in(room: string): SocketIO.Namespace {
return this.to(room);
}
send(...args: any[]): SocketIO.Namespace {
super.emit('message', ...args)
return this;
}
write(...args: any[]): SocketIO.Namespace {
return this.send(...args);
}
emit(event: string, ...args: any[]): boolean {
if (~this.events.indexOf(event)) {
super.emit(event, ...args);
// @ts-ignore
return this;
}
// set up packet object
var packet = {
type: PacketTypes.MESSAGE,
sub_type: (this.flags.binary !== undefined ? this.flags.binary : this.hasBin(args)) ? SubPacketTypes.BINARY_EVENT : SubPacketTypes.EVENT,
name: event,
data: args
}
if ('function' == typeof args[args.length - 1]) {
throw new Error('Callbacks are not supported when broadcasting');
}
var rooms = this.rooms.slice(0);
var flags = Object.assign({}, this.flags);
// reset flags
this.rooms = [];
this.flags = {};
this.adapter.broadcast(packet, {
rooms: rooms,
flags: flags
});
// @ts-ignore
return this;
}
hasBin(args: any[]) {
return false;
}
clients(fn: Function): SocketIO.Namespace {
return fn(Object.values(this.sockets))
}
compress(compress: boolean): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
process(packet: Packet, client: Client) {
switch (packet.sub_type) {
case SubPacketTypes.CONNECT:
this.add(client);
break;
default:
this.sockets[client.id].onpacket(packet);
break;
}
}
remove(socket: Socket) {
if (this.sockets.hasOwnProperty(socket.id)) {
delete this.sockets[socket.id];
} else {
// debug('ignoring remove for %s', socket.id);
}
}
private onconnection(socket: any) {
let client = socket as Socket;
this.sockets[client.id] = client;
client.onconnect()
this.emit(ServerEvent.connect, socket);
this.emit(ServerEvent.connection, socket);
}
}