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

143 lines
4.2 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: (sockets: Socket[]) => SocketIO.Namespace): 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);
}
}
close() {
this.removeAllListeners('connect')
Object.values(this.sockets).forEach(socket => socket.disconnect(false))
}
private onconnection(socket: any) {
let client = socket as Socket
this.sockets[client.id] = client
this.emit(ServerEvent.connect, socket)
client.onconnect()
this.emit(ServerEvent.connection, socket)
}
}