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feat: complate socket.io base framework

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Signed-off-by: MiaoWoo <admin@yumc.pw>
This commit is contained in:
MiaoWoo 2020-03-21 15:47:42 +08:00
parent 15f09abce0
commit 6c9ea9fb74
20 changed files with 1569 additions and 16 deletions
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4
packages/websocket/package.json
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@ -27,7 +27,9 @@
"typescript": "^3.8.3" "typescript": "^3.8.3"
}, },
"dependencies": { "dependencies": {
"@ms/nashorn": "^0.3.1" "@ms/container": "^0.3.2",
"@ms/nashorn": "^0.3.1",
"socket.io-parser": "^3.4.0"
}, },
"gitHead": "781524f83e52cad26d7c480513e3c525df867121" "gitHead": "781524f83e52cad26d7c480513e3c525df867121"
} }

2
packages/websocket/src/index.ts
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@ -1 +1,3 @@
/// <reference types="@ms/nashorn" /> /// <reference types="@ms/nashorn" />
export * from './socket-io'

9
packages/websocket/src/netty/httprequest.ts
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@ -2,17 +2,18 @@ const TypeParameterMatcher = Java.type('io.netty.util.internal.TypeParameterMatc
const SimpleChannelInboundHandler = Java.type('io.netty.channel.SimpleChannelInboundHandler') const SimpleChannelInboundHandler = Java.type('io.netty.channel.SimpleChannelInboundHandler')
const FullHttpRequestMatcher = TypeParameterMatcher.get(base.getClass('io.netty.handler.codec.http.FullHttpRequest')) const FullHttpRequestMatcher = TypeParameterMatcher.get(base.getClass('io.netty.handler.codec.http.FullHttpRequest'))
export default abstract class HttpRequestHandlerAdapter { export abstract class HttpRequestHandlerAdapter {
private _Handler; private _Handler;
constructor() { constructor() {
this._Handler == Java.extend(SimpleChannelInboundHandler, { let HttpRequestHandlerAdapterImpl = Java.extend(SimpleChannelInboundHandler, {
acceptInboundMessage: (msg: any) => { acceptInboundMessage: (msg: any) => {
return FullHttpRequestMatcher.match(msg) return FullHttpRequestMatcher.match(msg)
}, },
channelRead0: this.channelRead0 channelRead0: this.channelRead0.bind(this)
}) })
this._Handler = new HttpRequestHandlerAdapterImpl();
} }
abstract channelRead0(ctx: any, msg: any); abstract channelRead0(ctx: any, request: any);
getHandler() { getHandler() {
return this._Handler; return this._Handler;
} }

3
packages/websocket/src/netty/index.ts Normal file
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@ -0,0 +1,3 @@
export * from './text_websocket_frame'
export * from './websocket'
export * from './httprequest'

9
packages/websocket/src/netty/text_websocket_frame.ts
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@ -2,16 +2,17 @@ const TypeParameterMatcher = Java.type('io.netty.util.internal.TypeParameterMatc
const TextWebSocketFrameMatcher = TypeParameterMatcher.get(base.getClass('io.netty.handler.codec.http.websocketx.TextWebSocketFrame')) const TextWebSocketFrameMatcher = TypeParameterMatcher.get(base.getClass('io.netty.handler.codec.http.websocketx.TextWebSocketFrame'))
const SimpleChannelInboundHandler = Java.type('io.netty.channel.SimpleChannelInboundHandler') const SimpleChannelInboundHandler = Java.type('io.netty.channel.SimpleChannelInboundHandler')
export default abstract class TextWebSocketFrameHandlerAdapter { export abstract class TextWebSocketFrameHandlerAdapter {
private _Handler; private _Handler;
constructor() { constructor() {
this._Handler == Java.extend(SimpleChannelInboundHandler, { let TextWebSocketFrameHandlerAdapterImpl = Java.extend(SimpleChannelInboundHandler, {
userEventTriggered: this.userEventTriggered, userEventTriggered: this.userEventTriggered.bind(this),
acceptInboundMessage: (msg: any) => { acceptInboundMessage: (msg: any) => {
return TextWebSocketFrameMatcher.match(msg) return TextWebSocketFrameMatcher.match(msg)
}, },
channelRead0: this.channelRead0 channelRead0: this.channelRead0.bind(this)
}) })
this._Handler = new TextWebSocketFrameHandlerAdapterImpl();
} }
abstract userEventTriggered(ctx: any, evt: any); abstract userEventTriggered(ctx: any, evt: any);
abstract channelRead0(ctx: any, msg: any); abstract channelRead0(ctx: any, msg: any);

11
packages/websocket/src/netty/websocket.ts
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@ -1,15 +1,14 @@
const MiaoWebSocket = 'miaowebsocket'
const CharsetUtil = Java.type('io.netty.util.CharsetUtil')
const ChannelInboundHandlerAdapter = Java.type('io.netty.channel.ChannelInboundHandlerAdapter') const ChannelInboundHandlerAdapter = Java.type('io.netty.channel.ChannelInboundHandlerAdapter')
export default abstract class WebSocketHandlerAdapter { export abstract class WebSocketHandlerAdapter {
private _Handler; private _Handler;
constructor() { constructor() {
this._Handler = Java.extend(ChannelInboundHandlerAdapter, { let ChannelInboundHandlerAdapterImpl = Java.extend(ChannelInboundHandlerAdapter, {
channelRead: this.channelRead channelRead: this.channelRead.bind(this)
}) })
this._Handler = new ChannelInboundHandlerAdapterImpl()
} }
abstract channelRead(ctx: any, msg: any); abstract channelRead(ctx: any, channel: any);
getHandler() { getHandler() {
return this._Handler; return this._Handler;
} }

27
packages/websocket/src/server/client.ts Normal file
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@ -0,0 +1,27 @@
import { EventEmitter } from 'events'
const TextWebSocketFrame = Java.type('io.netty.handler.codec.http.websocketx.TextWebSocketFrame')
export class NettyClient {
private event: EventEmitter
private _id: string;
private channel: any
constructor(channel: any) {
this.channel = channel;
this._id = channel.id();
this.event = new EventEmitter();
}
get id() {
return this._id;
}
on(event: string, callback: (...args: any[]) => void) {
this.event.on(event, callback);
}
emit(event: string, text: string) {
this.event.emit(event, text);
}
send(text: string) {
this.channel.writeAndFlush(new TextWebSocketFrame(text))
}
}

13
packages/websocket/src/server/constants.ts Normal file
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@ -0,0 +1,13 @@
export enum ServerEvent {
detect = 'detect',
connect = 'connect',
connection = 'connection',
message = 'message',
disconnect = 'disconnect'
}
export enum Keys {
Detect = "miao_detect",
Handler = "miaowebsocket",
Default = "DefaultChannelPipeline"
}

66
packages/websocket/src/server/httprequest.ts Normal file
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@ -0,0 +1,66 @@
import { HttpRequestHandlerAdapter } from '../netty'
const DefaultHttpResponse = Java.type('io.netty.handler.codec.http.DefaultHttpResponse')
const DefaultFullHttpResponse = Java.type('io.netty.handler.codec.http.DefaultFullHttpResponse')
const HttpHeaders = Java.type('io.netty.handler.codec.http.HttpHeaders')
const HttpVersion = Java.type('io.netty.handler.codec.http.HttpVersion')
const HttpResponseStatus = Java.type('io.netty.handler.codec.http.HttpResponseStatus')
const LastHttpContent = Java.type('io.netty.handler.codec.http.LastHttpContent')
const File = Java.type('java.io.File')
const Runnable = Java.type('java.lang.Runnable')
const RandomAccessFile = Java.type('java.io.RandomAccessFile')
const DefaultFileRegion = Java.type('io.netty.channel.DefaultFileRegion')
const ChannelFutureListener = Java.type('io.netty.channel.ChannelFutureListener')
export type HttpRequestConfig = {
root?: string;
ws?: string;
}
export class HttpRequestHandler extends HttpRequestHandlerAdapter {
private ws: string;
private root: string;
constructor(config: HttpRequestConfig = {
root: root + '/wwwroot',
ws: '/ws'
}) {
super()
this.root = config.root;
this.ws = config.ws;
}
channelRead0(ctx: any, request: any) {
if (request.getUri().startsWith(this.ws)) {
ctx.fireChannelRead(request.retain())
} else {
ctx.executor().execute(new Runnable({
run: () => {
if (HttpHeaders.is100ContinueExpected(request)) {
ctx.writeAndFlush(new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.CONTINUE))
}
let filename = request.getUri().split('?')[0].substr(1)
let file = new File(this.root, filename || 'index.html')
if (!file.exists() || !file.isFile()) {
ctx.write(new DefaultHttpResponse(request.getProtocolVersion(), HttpResponseStatus.NOT_FOUND))
ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT).addListener(ChannelFutureListener.CLOSE)
return
}
let response = new DefaultHttpResponse(request.getProtocolVersion(), HttpResponseStatus.OK)
response.headers().set(HttpHeaders.Names.CONTENT_TYPE, "text/html charset=UTF-8")
let raf = new RandomAccessFile(file, 'r')
let keepAlive = HttpHeaders.isKeepAlive(request)
if (keepAlive) {
response.headers().set(HttpHeaders.Names.CONTENT_LENGTH, file.length())
response.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE)
}
ctx.write(response)
ctx.write(new DefaultFileRegion(raf.getChannel(), 0, raf.length()))
let future = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT)
if (!keepAlive) {
future.addListener(ChannelFutureListener.CLOSE)
}
}
}))
}
}
}

53
packages/websocket/src/server/index.ts Normal file
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@ -0,0 +1,53 @@
import { EventEmitter } from 'events'
import { ServerEvent, Keys } from './constants'
import { WebSocketDetect } from './websocket_detect'
import { WebSocketHandler } from './websocket_handler'
import { NettyClient } from './client'
interface NettyWebSocketServerOptions {
path?: string;
}
class NettyWebSocketServer {
private event: EventEmitter
private pipeline: any;
private allClients: { [key: string]: NettyClient };
constructor(pipeline: any, options: NettyWebSocketServerOptions) {
this.event = new EventEmitter();
this.allClients = {};
this.pipeline = pipeline;
let connectEvent = new EventEmitter();
this.pipeline.addFirst(Keys.Detect, new WebSocketDetect(connectEvent).getHandler())
connectEvent.on(ServerEvent.detect, (ctx, channel) => {
channel.pipeline().addFirst(Keys.Handler, new WebSocketHandler(connectEvent).getHandler())
ctx.fireChannelRead(channel)
})
connectEvent.on(ServerEvent.connect, (ctx) => {
let nettyClient = new NettyClient(ctx.channel());
this.allClients[nettyClient.id] = nettyClient;
this.event.emit(ServerEvent.connect, nettyClient);
})
connectEvent.on(ServerEvent.message, (ctx, msg) => {
let channel = ctx.channel();
this.allClients[channel.id()]?.emit(ServerEvent.message, msg.text())
})
}
disable() {
if (this.pipeline.names().contains(Keys.Detect)) {
this.pipeline.remove(Keys.Detect)
}
}
on(event: string, listener: (...args: any[]) => void) {
this.event.on(event, listener)
}
}
export {
NettyWebSocketServer,
ServerEvent,
NettyClient
};

19
packages/websocket/src/server/text_websocket_frame.ts Normal file
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@ -0,0 +1,19 @@
import { TextWebSocketFrameHandlerAdapter } from '../netty'
import { EventEmitter } from 'events'
import { ServerEvent } from './constants'
export class TextWebSocketFrameHandler extends TextWebSocketFrameHandlerAdapter {
private event: EventEmitter;
constructor(event: EventEmitter) {
super()
this.event = event;
}
userEventTriggered(ctx: any, evt: any) {
if (evt == 'HANDSHAKE_COMPLETE') {
this.event.emit(ServerEvent.connect, ctx)
}
}
channelRead0(ctx: any, msg: any) {
this.event.emit(ServerEvent.message, ctx, msg)
}
}

14
packages/websocket/src/server/websocket_detect.ts Normal file
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@ -0,0 +1,14 @@
import { EventEmitter } from 'events'
import { WebSocketHandlerAdapter } from "../netty"
import { ServerEvent } from './constants'
export class WebSocketDetect extends WebSocketHandlerAdapter {
private event: EventEmitter;
constructor(event: EventEmitter) {
super()
this.event = event;
}
channelRead(ctx: any, channel: any) {
this.event.emit(ServerEvent.detect, ctx, channel);
}
}

42
packages/websocket/src/server/websocket_handler.ts Normal file
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@ -0,0 +1,42 @@
import { EventEmitter } from 'events'
import { Keys } from './constants'
import { WebSocketHandlerAdapter } from "../netty"
import { HttpRequestHandler } from './httprequest'
import { TextWebSocketFrameHandler } from './text_websocket_frame'
const CharsetUtil = Java.type('io.netty.util.CharsetUtil')
const HttpServerCodec = Java.type('io.netty.handler.codec.http.HttpServerCodec')
const ChunkedWriteHandler = Java.type('io.netty.handler.stream.ChunkedWriteHandler')
const HttpObjectAggregator = Java.type('io.netty.handler.codec.http.HttpObjectAggregator')
const WebSocketServerProtocolHandler = Java.type('io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler')
export class WebSocketHandler extends WebSocketHandlerAdapter {
private event: EventEmitter;
constructor(event: EventEmitter) {
super()
this.event = event;
}
channelRead(ctx: any, msg: any) {
msg.markReaderIndex()
let message: string = msg.toString(CharsetUtil.UTF_8)
let channel = ctx.channel()
let pipeline = channel.pipeline()
if (message.indexOf('HTTP/1.1') > 0) {
pipeline.names().forEach(f => {
if (f == Keys.Handler || f.indexOf(Keys.Default) > -1) { return }
pipeline.remove(f)
})
pipeline.addLast('http', new HttpServerCodec())
pipeline.addLast('chunk', new ChunkedWriteHandler())
pipeline.addLast('httpobj', new HttpObjectAggregator(64 * 1024))
pipeline.addLast('http_request', new HttpRequestHandler().getHandler())
pipeline.addLast('websocket', new WebSocketServerProtocolHandler("/ws", true))
pipeline.addLast('websocket_handler', new TextWebSocketFrameHandler(this.event).getHandler())
}
pipeline.remove(Keys.Handler)
msg.resetReaderIndex()
ctx.fireChannelRead(msg)
}
}

84
packages/websocket/src/socket-io/client.ts Normal file
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@ -0,0 +1,84 @@
import { EventEmitter } from 'events'
import { Parser } from './parser'
import { Packet } from './packet';
import { PacketTypes, SubPacketTypes } from './types';
import { ServerEvent, NettyClient } from '../server';
import { SocketIO } from './interfaces'
const parser = new Parser();
export class SocketIOClient implements SocketIO.Client {
private nettyClient: NettyClient;
private event: EventEmitter
private _id: string;
server: SocketIO.Server;
conn: SocketIO.EngineSocket;
request: any;
sockets: { [id: string]: SocketIO.Socket; };
nsps: { [nsp: string]: SocketIO.Socket; };
constructor(nettyClient: NettyClient) {
this.event = new EventEmitter()
this.nettyClient = nettyClient;
this._id = this.nettyClient.id;
this.event.emit('connect', this);
this.nettyClient.on(ServerEvent.message, (text) => this.process(text))
}
get id() {
return this._id;
}
connect() {
this.packet({
type: PacketTypes.OPEN,
data: {
sid: this._id,
upgrades: [],
pingInterval: 25000,
pingTimeout: 5000
}
})
this.packet({
type: PacketTypes.MESSAGE,
sub_type: SubPacketTypes.CONNECT
})
}
emit(event: string, data: any) {
this.packet({
type: PacketTypes.MESSAGE,
sub_type: SubPacketTypes.EVENT,
name: event,
data
})
}
send(data: any) {
this.emit("message", data);
}
packet(packet: Packet) {
this.nettyClient.send(parser.encode(packet))
}
private process(text: string) {
let packet = parser.decode(text);
switch (packet.type) {
case PacketTypes.OPEN:
break;
case PacketTypes.PING:
this.packet({
type: PacketTypes.PONG
})
break;
case PacketTypes.MESSAGE:
switch (packet.sub_type) {
case SubPacketTypes.CONNECT:
this.nettyClient.send(text);
break;
case SubPacketTypes.EVENT:
this.event.emit(packet.name, packet.data);
break;
}
break;
}
}
}

118
packages/websocket/src/socket-io/index.ts Normal file
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@ -0,0 +1,118 @@
import { EventEmitter } from 'events'
import { NettyWebSocketServer } from '../server'
import { ServerEvent } from '../server/constants';
import { Namespace } from './namespace';
import { SocketIOClient } from './client';
import { SocketIO } from './interfaces'
export class SocketIOServer implements SocketIO.Server {
private event: EventEmitter;
private nettyServer: NettyWebSocketServer;
private allClients: { [key: string]: SocketIOClient };
private namespaces: { [key: string]: Namespace };
engine: { ws: any; };
nsps: { [namespace: string]: SocketIO.Namespace; };
sockets: SocketIO.Namespace;
json: SocketIO.Server;
volatile: SocketIO.Server;
local: SocketIO.Server;
constructor(pipeline: any, options: SocketIO.ServerOptions) {
if (!pipeline) { throw new Error('Netty Pipeline can\'t be undefiend!') }
this.event = new EventEmitter();
this.allClients = {};
this.namespaces = {};
this.nettyServer = new NettyWebSocketServer(pipeline, {
});
this.nettyServer.on(ServerEvent.connect, (nettyClient) => {
let client = new SocketIOClient(nettyClient);
this.allClients[client.id] = client;
client.connect();
})
}
checkRequest(req: any, fn: (err: any, success: boolean) => void): void {
throw new Error("Method not implemented.");
}
serveClient(): boolean;
serveClient(v: boolean): SocketIO.Server;
serveClient(v?: any): boolean | SocketIO.Server {
throw new Error("Method not implemented.");
}
path(): string;
path(v: string): SocketIO.Server;
path(v?: any): string | SocketIO.Server {
return this;
}
adapter();
adapter(v: any): SocketIO.Server;
adapter(v?: any): SocketIO.Server {
throw new Error("Method not implemented.");
}
origins(): string | string[];
origins(v: string | string[]): SocketIO.Server;
origins(fn: (origin: string, callback: (error: string, success: boolean) => void) => void): SocketIO.Server;
origins(fn?: any): string | string[] | SocketIO.Server {
throw new Error("Method not implemented.");
}
attach(srv: any, opts?: SocketIO.ServerOptions): SocketIO.Server;
attach(port: number, opts?: SocketIO.ServerOptions): SocketIO.Server;
attach(port: any, opts?: any): SocketIO.Server {
throw new Error("Method not implemented.");
}
listen(srv: any, opts?: SocketIO.ServerOptions): SocketIO.Server;
listen(port: number, opts?: SocketIO.ServerOptions): SocketIO.Server;
listen(port: any, opts?: any): SocketIO.Server {
throw new Error("Method not implemented.");
}
bind(srv: any): SocketIO.Server {
throw new Error("Method not implemented.");
}
onconnection(socket: any): SocketIO.Server {
throw new Error("Method not implemented.");
}
of(nsp: string | Function | RegExp): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
close(fn?: () => void): void {
throw new Error("Method not implemented.");
}
on(event: "connection", listener: (socket: SocketIO.Socket) => void): SocketIO.Namespace;
on(event: "connect", listener: (socket: SocketIO.Socket) => void): SocketIO.Namespace;
on(event: string, listener: Function): SocketIO.Namespace;
on(event: any, listener: any): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
to(room: string): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
in(room: string): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
use(fn: (socket: SocketIO.Socket, fn: (err?: any) => void) => void): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
emit(event: string, ...args: any[]): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
send(...args: any[]): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
write(...args: any[]): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
clients(...args: any[]): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
compress(...args: any[]): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
disable() {
this.nettyServer.disable();
}
}

824
packages/websocket/src/socket-io/interfaces.ts Normal file
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@ -0,0 +1,824 @@
export declare namespace SocketIO {
interface Server {
engine: { ws: any };
/**
* A dictionary of all the namespaces currently on this Server
*/
nsps: { [namespace: string]: Namespace };
/**
* The default '/' Namespace
*/
sockets: Namespace;
/**
* Sets the 'json' flag when emitting an event
*/
json: Server;
/**
* Sets a modifier for a subsequent event emission that the event data may be lost if the clients are not ready to receive messages
*/
volatile: Server;
/**
* Sets a modifier for a subsequent event emission that the event data will only be broadcast to the current node
*/
local: Server;
/**
* Server request verification function, that checks for allowed origins
* @param req The http.IncomingMessage request
* @param fn The callback to be called. It should take one parameter, err,
* which will be null if there was no problem, and one parameter, success,
* of type boolean
*/
checkRequest(req: any, fn: (err: any, success: boolean) => void): void;
/**
* Gets whether we're serving the client.js file or not
* @default true
*/
serveClient(): boolean;
/**
* Sets whether we're serving the client.js file or not
* @param v True if we want to serve the file, false otherwise
* @default true
* @return This Server
*/
serveClient(v: boolean): Server;
/**
* Gets the client serving path
* @default '/socket.io'
*/
path(): string;
/**
* Sets the client serving path
* @param v The path to serve the client file on
* @default '/socket.io'
* @return This Server
*/
path(v: string): Server;
/**
* Gets the adapter that we're going to use for handling rooms
* @default typeof Adapter
*/
adapter(): any;
/**
* Sets the adapter (class) that we're going to use for handling rooms
* @param v The class for the adapter to create
* @default typeof Adapter
* @return This Server
*/
adapter(v: any): Server;
/**
* Gets the allowed origins for requests
* @default "*:*"
*/
origins(): string | string[];
/**
* Sets the allowed origins for requests
* @param v The allowed origins, in host:port form
* @default "*:*"
* return This Server
*/
origins(v: string | string[]): Server;
/**
* Provides a function taking two arguments origin:String
* and callback(error, success), where success is a boolean
* value indicating whether origin is allowed or not. If
* success is set to false, error must be provided as a string
* value that will be appended to the server response, e.g. “Origin not allowed”.
* @param fn The function that will be called to check the origin
* return This Server
*/
origins(fn: (origin: string, callback: (error: string | null, success: boolean) => void) => void): Server;
/**
* Attaches socket.io to a server
* @param srv The http.Server that we want to attach to
* @param opts An optional parameters object
* @return This Server
*/
attach(srv: any, opts?: ServerOptions): Server;
/**
* Attaches socket.io to a port
* @param port The port that we want to attach to
* @param opts An optional parameters object
* @return This Server
*/
attach(port: number, opts?: ServerOptions): Server;
/**
* @see attach( srv, opts )
*/
listen(srv: any, opts?: ServerOptions): Server;
/**
* @see attach( port, opts )
*/
listen(port: number, opts?: ServerOptions): Server;
/**
* Binds socket.io to an engine.io instance
* @param src The Engine.io (or compatible) server to bind to
* @return This Server
*/
bind(srv: any): Server;
/**
* Called with each incoming connection
* @param socket The Engine.io Socket
* @return This Server
*/
onconnection(socket: any): Server;
/**
* Looks up/creates a Namespace
* @param nsp The name of the NameSpace to look up/create. Should start
* with a '/'
* @return The Namespace
*/
of(nsp: string | RegExp | Function): Namespace;
/**
* Closes the server connection
*/
close(fn?: () => void): void;
/**
* The event fired when we get a new connection
* @param event The event being fired: 'connection'
* @param listener A listener that should take one parameter of type Socket
* @return The default '/' Namespace
*/
on(event: 'connection', listener: (socket: Socket) => void): Namespace;
/**
* @see on( 'connection', listener )
*/
on(event: 'connect', listener: (socket: Socket) => void): Namespace;
/**
* Base 'on' method to add a listener for an event
* @param event The event that we want to add a listener for
* @param listener The callback to call when we get the event. The parameters
* for the callback depend on the event
* @return The default '/' Namespace
*/
on(event: string, listener: Function): Namespace;
/**
* Targets a room when emitting to the default '/' Namespace
* @param room The name of the room that we're targeting
* @return The default '/' Namespace
*/
to(room: string): Namespace;
/**
* @see to( room )
*/
in(room: string): Namespace;
/**
* Registers a middleware function, which is a function that gets executed
* for every incoming Socket, on the default '/' Namespace
* @param fn The function to call when we get a new incoming socket. It should
* take one parameter of type Socket, and one callback function to call to
* execute the next middleware function. The callback can take one optional
* parameter, err, if there was an error. Errors passed to middleware callbacks
* are sent as special 'error' packets to clients
* @return The default '/' Namespace
*/
use(fn: (socket: Socket, fn: (err?: any) => void) => void): Namespace;
/**
* Emits an event to the default Namespace
* @param event The event that we want to emit
* @param args Any number of optional arguments to pass with the event. If the
* last argument is a function, it will be called as an ack. The ack should
* take whatever data was sent with the packet
* @return The default '/' Namespace
*/
emit(event: string, ...args: any[]): Namespace;
/**
* Sends a 'message' event
* @see emit( event, ...args )
* @return The default '/' Namespace
*/
send(...args: any[]): Namespace;
/**
* @see send( ...args )
*/
write(...args: any[]): Namespace;
/**
* Gets a list of clients
* @return The default '/' Namespace
*/
clients(...args: any[]): Namespace;
/**
* Sets the compress flag
* @return The default '/' Namespace
*/
compress(...args: any[]): Namespace;
}
/**
* Options to pass to our server when creating it
*/
interface ServerOptions {
/**
* The path to server the client file to
* @default '/socket.io'
*/
path?: string;
/**
* Should we serve the client file?
* @default true
*/
serveClient?: boolean;
/**
* The adapter to use for handling rooms. NOTE: this should be a class,
* not an object
* @default typeof Adapter
*/
adapter?: Adapter;
/**
* Accepted origins
* @default '*:*'
*/
origins?: string | string[];
/**
* How many milliseconds without a pong packed to consider the connection closed (engine.io)
* @default 60000
*/
pingTimeout?: number;
/**
* How many milliseconds before sending a new ping packet (keep-alive) (engine.io)
* @default 25000
*/
pingInterval?: number;
/**
* How many bytes or characters a message can be when polling, before closing the session
* (to avoid Dos) (engine.io)
* @default 10E7
*/
maxHttpBufferSize?: number;
/**
* A function that receives a given handshake or upgrade request as its first parameter,
* and can decide whether to continue or not. The second argument is a function that needs
* to be called with the decided information: fn( err, success ), where success is a boolean
* value where false means that the request is rejected, and err is an error code (engine.io)
* @default null
*/
allowRequest?: (request: any, callback: (err: number, success: boolean) => void) => void;
/**
* Transports to allow connections to (engine.io)
* @default ['polling','websocket']
*/
transports?: string[];
/**
* Whether to allow transport upgrades (engine.io)
* @default true
*/
allowUpgrades?: boolean;
/**
* parameters of the WebSocket permessage-deflate extension (see ws module).
* Set to false to disable (engine.io)
* @default true
*/
perMessageDeflate?: Object | boolean;
/**
* Parameters of the http compression for the polling transports (see zlib).
* Set to false to disable, or set an object with parameter "threshold:number"
* to only compress data if the byte size is above this value (1024) (engine.io)
* @default true|1024
*/
httpCompression?: Object | boolean;
/**
* Name of the HTTP cookie that contains the client sid to send as part of
* handshake response headers. Set to false to not send one (engine.io)
* @default "io"
*/
cookie?: string | boolean;
/**
* Whether to let engine.io handle the OPTIONS requests.
* You can also pass a custom function to handle the requests
* @default true
*/
handlePreflightRequest?: ((req: any, res: any) => void) | boolean;
}
/**
* The Namespace, sandboxed environments for sockets, each connection
* to a Namespace requires a new Socket
*/
interface Namespace extends NodeJS.EventEmitter {
/**
* The name of the NameSpace
*/
name: string;
/**
* The controller Server for this Namespace
*/
server: Server;
/**
* A dictionary of all the Sockets connected to this Namespace, where
* the Socket ID is the key
*/
sockets: { [id: string]: Socket };
/**
* A dictionary of all the Sockets connected to this Namespace, where
* the Socket ID is the key
*/
connected: { [id: string]: Socket };
/**
* The Adapter that we're using to handle dealing with rooms etc
*/
adapter: Adapter;
/**
* Sets the 'json' flag when emitting an event
*/
json: Namespace;
/**
* Registers a middleware function, which is a function that gets executed
* for every incoming Socket
* @param fn The function to call when we get a new incoming socket. It should
* take one parameter of type Socket, and one callback function to call to
* execute the next middleware function. The callback can take one optional
* parameter, err, if there was an error. Errors passed to middleware callbacks
* are sent as special 'error' packets to clients
* @return This Namespace
*/
use(fn: (socket: Socket, fn: (err?: any) => void) => void): Namespace;
/**
* Targets a room when emitting
* @param room The name of the room that we're targeting
* @return This Namespace
*/
to(room: string): Namespace;
/**
* @see to( room )
*/
in(room: string): Namespace;
/**
* Sends a 'message' event
* @see emit( event, ...args )
* @return This Namespace
*/
send(...args: any[]): Namespace;
/**
* @see send( ...args )
*/
write(...args: any[]): Namespace;
/**
* The event fired when we get a new connection
* @param event The event being fired: 'connection'
* @param listener A listener that should take one parameter of type Socket
* @return This Namespace
*/
on(event: 'connection', listener: (socket: Socket) => void): this;
/**
* @see on( 'connection', listener )
*/
on(event: 'connect', listener: (socket: Socket) => void): this;
/**
* Base 'on' method to add a listener for an event
* @param event The event that we want to add a listener for
* @param listener The callback to call when we get the event. The parameters
* for the callback depend on the event
* @ This Namespace
*/
on(event: string, listener: Function): this;
/**
* Gets a list of clients.
* @return This Namespace
*/
clients(fn: Function): Namespace;
/**
* Sets the compress flag.
* @param compress If `true`, compresses the sending data
* @return This Namespace
*/
compress(compress: boolean): Namespace;
}
interface Packet extends Array<any> {
/**
* Event name
*/
[0]: string;
/**
* Packet data
*/
[1]: any;
/**
* Ack function
*/
[2]: (...args: any[]) => void;
}
/**
* The socket, which handles our connection for a namespace. NOTE: while
* we technically extend NodeJS.EventEmitter, we're not putting it here
* as we have a problem with the emit() event (as it's overridden with a
* different return)
*/
interface Socket extends NodeJS.EventEmitter {
/**
* The namespace that this socket is for
*/
nsp: Namespace;
/**
* The Server that our namespace is in
*/
server: Server;
/**
* The Adapter that we use to handle our rooms
*/
adapter: Adapter;
/**
* The unique ID for this Socket. Regenerated at every connection. This is
* also the name of the room that the Socket automatically joins on connection
*/
id: string;
/**
* The http.IncomingMessage request sent with the connection. Useful
* for recovering headers etc
*/
request: any;
/**
* The Client associated with this Socket
*/
client: Client;
/**
* The underlying Engine.io Socket instance
*/
conn: EngineSocket;
/**
* The list of rooms that this Socket is currently in, where
* the ID the the room ID
*/
rooms: { [id: string]: string };
/**
* Is the Socket currently connected?
*/
connected: boolean;
/**
* Is the Socket currently disconnected?
*/
disconnected: boolean;
/**
* The object used when negociating the handshake
*/
handshake: Handshake;
/**
* Sets the 'json' flag when emitting an event
*/
json: Socket;
/**
* Sets the 'volatile' flag when emitting an event. Volatile messages are
* messages that can be dropped because of network issues and the like. Use
* for high-volume/real-time messages where you don't need to receive *all*
* of them
*/
volatile: Socket;
/**
* Sets the 'broadcast' flag when emitting an event. Broadcasting an event
* will send it to all the other sockets in the namespace except for yourself
*/
broadcast: Socket;
/**
* Targets a room when broadcasting
* @param room The name of the room that we're targeting
* @return This Socket
*/
to(room: string): Socket;
/**
* @see to( room )
*/
in(room: string): Socket;
/**
* Registers a middleware, which is a function that gets executed for every incoming Packet and receives as parameter the packet and a function to optionally defer execution to the next registered middleware.
*
* Errors passed to middleware callbacks are sent as special error packets to clients.
*/
use(fn: (packet: Packet, next: (err?: any) => void) => void): Socket;
/**
* Sends a 'message' event
* @see emit( event, ...args )
*/
send(...args: any[]): Socket;
/**
* @see send( ...args )
*/
write(...args: any[]): Socket;
/**
* Joins a room. You can join multiple rooms, and by default, on connection,
* you join a room with the same name as your ID
* @param name The name of the room that we want to join
* @param fn An optional callback to call when we've joined the room. It should
* take an optional parameter, err, of a possible error
* @return This Socket
*/
join(name: string | string[], fn?: (err?: any) => void): Socket;
/**
* Leaves a room
* @param name The name of the room to leave
* @param fn An optional callback to call when we've left the room. It should
* take on optional parameter, err, of a possible error
*/
leave(name: string, fn?: Function): Socket;
/**
* Leaves all the rooms that we've joined
*/
leaveAll(): void;
/**
* Disconnects this Socket
* @param close If true, also closes the underlying connection
* @return This Socket
*/
disconnect(close?: boolean): Socket;
/**
* Returns all the callbacks for a particular event
* @param event The event that we're looking for the callbacks of
* @return An array of callback Functions, or an empty array if we don't have any
*/
listeners(event: string): Function[];
/**
* Sets the compress flag
* @param compress If `true`, compresses the sending data
* @return This Socket
*/
compress(compress: boolean): Socket;
/**
* Emits the error
* @param err Error message=
*/
error(err: any): void;
}
interface Handshake {
/**
* The headers passed along with the request. e.g. 'host',
* 'connection', 'accept', 'referer', 'cookie'
*/
headers: any;
/**
* The current time, as a string
*/
time: string;
/**
* The remote address of the connection request
*/
address: string;
/**
* Is this a cross-domain request?
*/
xdomain: boolean;
/**
* Is this a secure request?
*/
secure: boolean;
/**
* The timestamp for when this was issued
*/
issued: number;
/**
* The request url
*/
url: string;
/**
* Any query string parameters in the request url
*/
query: any;
}
/**
* The interface describing a room
*/
interface Room {
sockets: { [id: string]: boolean };
length: number;
}
/**
* The interface describing a dictionary of rooms
* Where room is the name of the room
*/
interface Rooms {
[room: string]: Room;
}
/**
* The interface used when dealing with rooms etc
*/
interface Adapter extends NodeJS.EventEmitter {
/**
* The namespace that this adapter is for
*/
nsp: Namespace;
/**
* A dictionary of all the rooms that we have in this namespace
*/
rooms: Rooms;
/**
* A dictionary of all the socket ids that we're dealing with, and all
* the rooms that the socket is currently in
*/
sids: { [id: string]: { [room: string]: boolean } };
/**
* Adds a socket to a room. If the room doesn't exist, it's created
* @param id The ID of the socket to add
* @param room The name of the room to add the socket to
* @param callback An optional callback to call when the socket has been
* added. It should take an optional parameter, error, if there was a problem
*/
add(id: string, room: string, callback?: (err?: any) => void): void;
/**
* Removes a socket from a room. If there are no more sockets in the room,
* the room is deleted
* @param id The ID of the socket that we're removing
* @param room The name of the room to remove the socket from
* @param callback An optional callback to call when the socket has been
* removed. It should take on optional parameter, error, if there was a problem
*/
del(id: string, room: string, callback?: (err?: any) => void): void;
/**
* Removes a socket from all the rooms that it's joined
* @param id The ID of the socket that we're removing
*/
delAll(id: string): void;
/**
* Broadcasts a packet
* @param packet The packet to broadcast
* @param opts Any options to send along:
* - rooms: An optional list of rooms to broadcast to. If empty, the packet is broadcast to all sockets
* - except: A list of Socket IDs to exclude
* - flags: Any flags that we want to send along ('json', 'volatile', 'broadcast')
*/
broadcast(packet: any, opts: { rooms?: string[]; except?: string[]; flags?: { [flag: string]: boolean } }): void;
}
/**
* The client behind each socket (can have multiple sockets)
*/
interface Client {
/**
* The Server that this client belongs to
*/
server: Server;
/**
* The underlying Engine.io Socket instance
*/
conn: EngineSocket;
/**
* The ID for this client. Regenerated at every connection
*/
id: string;
/**
* The http.IncomingMessage request sent with the connection. Useful
* for recovering headers etc
*/
request: any;
/**
* The dictionary of sockets currently connect via this client (i.e. to different
* namespaces) where the Socket ID is the key
*/
sockets: { [id: string]: Socket };
/**
* A dictionary of all the namespaces for this client, with the Socket that
* deals with that namespace
*/
nsps: { [nsp: string]: Socket };
}
/**
* A reference to the underlying engine.io Socket connection.
*/
interface EngineSocket extends NodeJS.EventEmitter {
/**
* The ID for this socket - matches Client.id
*/
id: string;
/**
* The Engine.io Server for this socket
*/
server: any;
/**
* The ready state for the client. Either 'opening', 'open', 'closing', or 'closed'
*/
readyState: string;
/**
* The remote IP for this connection
*/
remoteAddress: string;
/**
* whether the transport has been upgraded
*/
upgraded: boolean;
/**
* (http.IncomingMessage): request that originated the Socket
*/
request: any;
/**
* (Transport): transport reference
*/
transport: any;
}
}

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import { EventEmitter } from 'events'
import { SocketIOClient } from './client'
import { SocketIO } from './interfaces';
export class Namespace implements SocketIO.Namespace {
private event: EventEmitter;
private allClients: { [key: string]: SocketIOClient };
private roomClients: { [key: string]: Set<string> };
private clientRooms: { [key: string]: Set<string> };
name: string;
server: SocketIO.Server;
sockets: { [id: string]: SocketIO.Socket; };
connected: { [id: string]: SocketIO.Socket; };
adapter: SocketIO.Adapter;
json: SocketIO.Namespace;
constructor(name: string) {
this.name = name;
this.event = new EventEmitter();
this.allClients = {};
this.roomClients = {};
this.clientRooms = {};
}
use(fn: (socket: SocketIO.Socket, fn: (err?: any) => void) => void): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
to(room: string): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
in(room: string): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
send(...args: any[]): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
write(...args: any[]): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
on(event: "connection", listener: (socket: SocketIO.Socket) => void): this;
on(event: "connect", listener: (socket: SocketIO.Socket) => void): this;
on(event: string, listener: Function): this;
on(event: any, listener: any) {
return this;
}
clients(fn: Function): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
compress(compress: boolean): SocketIO.Namespace {
throw new Error("Method not implemented.");
}
addListener(event: string | symbol, listener: (...args: any[]) => void): this {
throw new Error("Method not implemented.");
}
once(event: string | symbol, listener: (...args: any[]) => void): this {
throw new Error("Method not implemented.");
}
removeListener(event: string | symbol, listener: (...args: any[]) => void): this {
throw new Error("Method not implemented.");
}
off(event: string | symbol, listener: (...args: any[]) => void): this {
throw new Error("Method not implemented.");
}
removeAllListeners(event?: string | symbol): this {
throw new Error("Method not implemented.");
}
setMaxListeners(n: number): this {
throw new Error("Method not implemented.");
}
getMaxListeners(): number {
throw new Error("Method not implemented.");
}
listeners(event: string | symbol): Function[] {
throw new Error("Method not implemented.");
}
rawListeners(event: string | symbol): Function[] {
throw new Error("Method not implemented.");
}
emit(event: string | symbol, ...args: any[]): boolean {
throw new Error("Method not implemented.");
}
listenerCount(type: string | symbol): number {
throw new Error("Method not implemented.");
}
prependListener(event: string | symbol, listener: (...args: any[]) => void): this {
throw new Error("Method not implemented.");
}
prependOnceListener(event: string | symbol, listener: (...args: any[]) => void): this {
throw new Error("Method not implemented.");
}
eventNames(): (string | symbol)[] {
throw new Error("Method not implemented.");
}
}

11
packages/websocket/src/socket-io/packet.ts Normal file
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import { PacketTypes, SubPacketTypes } from './types'
export interface Packet {
type: PacketTypes;
sub_type?: SubPacketTypes;
nsp?: string;
id?: number;
name?: string;
data?: any;
attachments?: any;
}

160
packages/websocket/src/socket-io/parser.ts Normal file
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import { Packet } from "./packet";
import { PacketTypes, SubPacketTypes } from "./types";
export class Parser {
encode(packet: Packet): string {
// first is type
var str = '' + packet.type;
if (packet.type == PacketTypes.PONG) {
if (packet.data) { str += packet.data };
return str;
}
if (packet.sub_type != undefined) {
str += packet.sub_type;
}
// attachments if we have them
if ([SubPacketTypes.BINARY_EVENT, SubPacketTypes.BINARY_ACK].includes(packet.sub_type)) {
str += packet.attachments + '-';
}
// if we have a namespace other than `/`
// we append it followed by a comma `,`
if (packet.nsp && '/' !== packet.nsp) {
str += packet.nsp + ',';
}
// immediately followed by the id
if (null != packet.id) {
str += packet.id;
}
if (packet.sub_type == SubPacketTypes.EVENT) {
packet.data = [packet.name, packet.data]
}
// json data
if (null != packet.data) {
var payload = this.tryStringify(packet.data);
if (payload !== false) {
str += payload;
} else {
return '4"encode error"'
}
}
console.debug(`encoded ${JSON.stringify(packet)} as ${str}`);
return str;
}
tryStringify(str) {
try {
return JSON.stringify(str);
} catch (e) {
return false;
}
}
decode(str: string): Packet {
var i = 0;
// ignore parse binary
// if ((frame.getByte(0) == 'b' && frame.getByte(1) == '4')
// || frame.getByte(0) == 4 || frame.getByte(0) == 1) {
// return parseBinary(head, frame);
// }
// look up type
var p: Packet = {
type: Number(str.charAt(i))
};
if (null == PacketTypes[p.type]) {
return this.error('unknown packet type ' + p.type);
}
// if str empty return
if (str.length == i + 1) {
return p;
}
// if is ping packet read data and return
if (PacketTypes.PING == p.type) {
p.data = str.substr(++i);
return p;
}
// look up sub type
p.sub_type = Number(str.charAt(++i));
if (null == PacketTypes[p.sub_type]) {
return this.error('unknown sub packet type ' + p.type);
}
// look up attachments if type binary
if ([SubPacketTypes.BINARY_ACK, SubPacketTypes.BINARY_EVENT].includes(p.sub_type)) {
var buf = '';
while (str.charAt(++i) !== '-') {
buf += str.charAt(i);
if (i == str.length) break;
}
if (buf != `${Number(buf)}` || str.charAt(i) !== '-') {
throw new Error('Illegal attachments');
}
p.attachments = Number(buf);
}
// look up namespace (if any)
if ('/' === str.charAt(i + 1)) {
p.nsp = '';
while (++i) {
var c = str.charAt(i);
if (',' === c) break;
p.nsp += c;
if (i === str.length) break;
}
} else {
p.nsp = '/';
}
// look up id
var next = str.charAt(i + 1);
if ('' !== next && Number.isNaN(Number(next))) {
var id = ''
while (++i) {
var c = str.charAt(i);
if (null == c || Number.isNaN(Number(c))) {
--i;
break;
}
id += str.charAt(i);
if (i === str.length) break;
}
p.id = Number(id);
}
// look up packet name
if (p.sub_type == SubPacketTypes.EVENT) {
}
// ignore binary packet
if (p.sub_type == SubPacketTypes.BINARY_EVENT) {
return this.error('not support binary parse...')
}
// look up json data
if (str.charAt(++i)) {
var payload = this.tryParse(str.substr(i));
var isPayloadValid = payload !== false && (p.sub_type == SubPacketTypes.ERROR || Array.isArray(payload));
if (isPayloadValid) {
p.name = payload[0];
p.data = payload[1];
} else {
return this.error('invalid payload');
}
}
console.debug(`decoded ${str} as ${JSON.stringify(p)}`);
return p;
}
tryParse(str) {
try {
return JSON.parse(str);
} catch (e) {
return false;
}
}
error(error: string): Packet {
return {
type: PacketTypes.MESSAGE,
sub_type: SubPacketTypes.ERROR,
data: 'parser error: ' + error
};
}
}

18
packages/websocket/src/socket-io/types.ts Normal file
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export enum PacketTypes {
OPEN,
CLOSE,
PING,
PONG,
MESSAGE,
UPGRADE,
NOOP,
}
export enum SubPacketTypes {
CONNECT,
DISCONNECT,
EVENT,
ACK,
ERROR,
BINARY_EVENT,
BINARY_ACK
}