first commit
This commit is contained in:
kicap1992
601
assets/socket.io/dist/socket.js
vendored
Normal file
601
assets/socket.io/dist/socket.js
vendored
Normal file
@ -0,0 +1,601 @@
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"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.Socket = exports.RESERVED_EVENTS = void 0;
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const socket_io_parser_1 = require("socket.io-parser");
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const debug_1 = __importDefault(require("debug"));
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const typed_events_1 = require("./typed-events");
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const base64id_1 = __importDefault(require("base64id"));
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const broadcast_operator_1 = require("./broadcast-operator");
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const debug = (0, debug_1.default)("socket.io:socket");
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exports.RESERVED_EVENTS = new Set([
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"connect",
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"connect_error",
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"disconnect",
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"disconnecting",
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"newListener",
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"removeListener",
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]);
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class Socket extends typed_events_1.StrictEventEmitter {
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/**
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* Interface to a `Client` for a given `Namespace`.
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*
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* @param {Namespace} nsp
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* @param {Client} client
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* @param {Object} auth
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* @package
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*/
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constructor(nsp, client, auth) {
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super();
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this.nsp = nsp;
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this.client = client;
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/**
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* Additional information that can be attached to the Socket instance and which will be used in the fetchSockets method
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*/
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this.data = {};
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this.connected = false;
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this.acks = new Map();
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this.fns = [];
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this.flags = {};
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this.server = nsp.server;
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this.adapter = this.nsp.adapter;
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if (client.conn.protocol === 3) {
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// @ts-ignore
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this.id = nsp.name !== "/" ? nsp.name + "#" + client.id : client.id;
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}
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else {
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this.id = base64id_1.default.generateId(); // don't reuse the Engine.IO id because it's sensitive information
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}
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this.handshake = this.buildHandshake(auth);
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}
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/**
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* Builds the `handshake` BC object
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*
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* @private
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*/
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buildHandshake(auth) {
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return {
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headers: this.request.headers,
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time: new Date() + "",
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address: this.conn.remoteAddress,
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xdomain: !!this.request.headers.origin,
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// @ts-ignore
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secure: !!this.request.connection.encrypted,
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issued: +new Date(),
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url: this.request.url,
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// @ts-ignore
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query: this.request._query,
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auth,
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};
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}
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/**
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* Emits to this client.
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*
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* @return Always returns `true`.
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* @public
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*/
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emit(ev, ...args) {
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if (exports.RESERVED_EVENTS.has(ev)) {
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throw new Error(`"${ev}" is a reserved event name`);
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}
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const data = [ev, ...args];
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const packet = {
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type: socket_io_parser_1.PacketType.EVENT,
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data: data,
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};
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// access last argument to see if it's an ACK callback
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if (typeof data[data.length - 1] === "function") {
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const id = this.nsp._ids++;
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debug("emitting packet with ack id %d", id);
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this.registerAckCallback(id, data.pop());
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packet.id = id;
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}
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const flags = Object.assign({}, this.flags);
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this.flags = {};
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this.packet(packet, flags);
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return true;
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}
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/**
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* @private
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*/
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registerAckCallback(id, ack) {
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const timeout = this.flags.timeout;
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if (timeout === undefined) {
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this.acks.set(id, ack);
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return;
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}
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const timer = setTimeout(() => {
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debug("event with ack id %d has timed out after %d ms", id, timeout);
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this.acks.delete(id);
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ack.call(this, new Error("operation has timed out"));
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}, timeout);
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this.acks.set(id, (...args) => {
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clearTimeout(timer);
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ack.apply(this, [null, ...args]);
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});
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}
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/**
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* Targets a room when broadcasting.
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*
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* @param room
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* @return self
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* @public
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*/
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to(room) {
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return this.newBroadcastOperator().to(room);
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}
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/**
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* Targets a room when broadcasting.
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*
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* @param room
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* @return self
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* @public
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*/
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in(room) {
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return this.newBroadcastOperator().in(room);
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}
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/**
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* Excludes a room when broadcasting.
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*
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* @param room
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* @return self
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* @public
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*/
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except(room) {
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return this.newBroadcastOperator().except(room);
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}
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/**
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* Sends a `message` event.
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*
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* @return self
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* @public
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*/
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send(...args) {
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this.emit("message", ...args);
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return this;
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}
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/**
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* Sends a `message` event.
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*
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* @return self
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* @public
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*/
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write(...args) {
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this.emit("message", ...args);
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return this;
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}
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/**
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* Writes a packet.
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*
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* @param {Object} packet - packet object
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* @param {Object} opts - options
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* @private
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*/
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packet(packet, opts = {}) {
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packet.nsp = this.nsp.name;
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opts.compress = false !== opts.compress;
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this.client._packet(packet, opts);
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}
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/**
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* Joins a room.
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*
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* @param {String|Array} rooms - room or array of rooms
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* @return a Promise or nothing, depending on the adapter
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* @public
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*/
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join(rooms) {
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debug("join room %s", rooms);
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return this.adapter.addAll(this.id, new Set(Array.isArray(rooms) ? rooms : [rooms]));
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}
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/**
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* Leaves a room.
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*
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* @param {String} room
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* @return a Promise or nothing, depending on the adapter
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* @public
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*/
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leave(room) {
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debug("leave room %s", room);
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return this.adapter.del(this.id, room);
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}
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/**
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* Leave all rooms.
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*
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* @private
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*/
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leaveAll() {
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this.adapter.delAll(this.id);
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}
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/**
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* Called by `Namespace` upon successful
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* middleware execution (ie: authorization).
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* Socket is added to namespace array before
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* call to join, so adapters can access it.
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*
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* @private
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*/
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_onconnect() {
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debug("socket connected - writing packet");
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this.connected = true;
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this.join(this.id);
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if (this.conn.protocol === 3) {
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this.packet({ type: socket_io_parser_1.PacketType.CONNECT });
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}
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else {
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this.packet({ type: socket_io_parser_1.PacketType.CONNECT, data: { sid: this.id } });
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}
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}
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/**
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* Called with each packet. Called by `Client`.
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*
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* @param {Object} packet
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* @private
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*/
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_onpacket(packet) {
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debug("got packet %j", packet);
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switch (packet.type) {
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case socket_io_parser_1.PacketType.EVENT:
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this.onevent(packet);
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break;
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case socket_io_parser_1.PacketType.BINARY_EVENT:
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this.onevent(packet);
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break;
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case socket_io_parser_1.PacketType.ACK:
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this.onack(packet);
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break;
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case socket_io_parser_1.PacketType.BINARY_ACK:
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this.onack(packet);
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break;
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case socket_io_parser_1.PacketType.DISCONNECT:
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this.ondisconnect();
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break;
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case socket_io_parser_1.PacketType.CONNECT_ERROR:
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this._onerror(new Error(packet.data));
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}
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}
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/**
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* Called upon event packet.
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*
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* @param {Packet} packet - packet object
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* @private
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*/
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onevent(packet) {
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const args = packet.data || [];
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debug("emitting event %j", args);
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if (null != packet.id) {
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debug("attaching ack callback to event");
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args.push(this.ack(packet.id));
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}
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if (this._anyListeners && this._anyListeners.length) {
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const listeners = this._anyListeners.slice();
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for (const listener of listeners) {
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listener.apply(this, args);
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}
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}
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this.dispatch(args);
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}
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/**
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* Produces an ack callback to emit with an event.
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*
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* @param {Number} id - packet id
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* @private
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*/
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ack(id) {
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const self = this;
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let sent = false;
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return function () {
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// prevent double callbacks
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if (sent)
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return;
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const args = Array.prototype.slice.call(arguments);
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debug("sending ack %j", args);
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self.packet({
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id: id,
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type: socket_io_parser_1.PacketType.ACK,
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data: args,
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});
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sent = true;
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};
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}
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/**
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* Called upon ack packet.
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*
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* @private
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*/
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onack(packet) {
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const ack = this.acks.get(packet.id);
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if ("function" == typeof ack) {
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debug("calling ack %s with %j", packet.id, packet.data);
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ack.apply(this, packet.data);
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this.acks.delete(packet.id);
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}
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else {
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debug("bad ack %s", packet.id);
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}
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}
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/**
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* Called upon client disconnect packet.
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*
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* @private
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*/
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ondisconnect() {
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debug("got disconnect packet");
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this._onclose("client namespace disconnect");
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}
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/**
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* Handles a client error.
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*
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* @private
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*/
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_onerror(err) {
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if (this.listeners("error").length) {
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this.emitReserved("error", err);
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}
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else {
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console.error("Missing error handler on `socket`.");
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console.error(err.stack);
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}
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}
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/**
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* Called upon closing. Called by `Client`.
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*
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* @param {String} reason
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* @throw {Error} optional error object
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*
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* @private
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*/
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_onclose(reason) {
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if (!this.connected)
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return this;
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debug("closing socket - reason %s", reason);
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this.emitReserved("disconnecting", reason);
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this.leaveAll();
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this.nsp._remove(this);
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this.client._remove(this);
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this.connected = false;
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this.emitReserved("disconnect", reason);
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return;
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}
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/**
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* Produces an `error` packet.
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*
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* @param {Object} err - error object
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*
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* @private
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*/
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_error(err) {
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this.packet({ type: socket_io_parser_1.PacketType.CONNECT_ERROR, data: err });
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}
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/**
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* Disconnects this client.
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*
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* @param {Boolean} close - if `true`, closes the underlying connection
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* @return {Socket} self
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*
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* @public
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*/
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disconnect(close = false) {
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if (!this.connected)
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return this;
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if (close) {
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this.client._disconnect();
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}
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else {
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this.packet({ type: socket_io_parser_1.PacketType.DISCONNECT });
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this._onclose("server namespace disconnect");
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}
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return this;
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||||
}
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/**
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||||
* Sets the compress flag.
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||||
*
|
||||
* @param {Boolean} compress - if `true`, compresses the sending data
|
||||
* @return {Socket} self
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||||
* @public
|
||||
*/
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||||
compress(compress) {
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||||
this.flags.compress = compress;
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return this;
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}
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||||
/**
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||||
* Sets a modifier for a subsequent event emission that the event data may be lost if the client is not ready to
|
||||
* receive messages (because of network slowness or other issues, or because they’re connected through long polling
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||||
* and is in the middle of a request-response cycle).
|
||||
*
|
||||
* @return {Socket} self
|
||||
* @public
|
||||
*/
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||||
get volatile() {
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||||
this.flags.volatile = true;
|
||||
return this;
|
||||
}
|
||||
/**
|
||||
* Sets a modifier for a subsequent event emission that the event data will only be broadcast to every sockets but the
|
||||
* sender.
|
||||
*
|
||||
* @return {Socket} self
|
||||
* @public
|
||||
*/
|
||||
get broadcast() {
|
||||
return this.newBroadcastOperator();
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||||
}
|
||||
/**
|
||||
* Sets a modifier for a subsequent event emission that the event data will only be broadcast to the current node.
|
||||
*
|
||||
* @return {Socket} self
|
||||
* @public
|
||||
*/
|
||||
get local() {
|
||||
return this.newBroadcastOperator().local;
|
||||
}
|
||||
/**
|
||||
* Sets a modifier for a subsequent event emission that the callback will be called with an error when the
|
||||
* given number of milliseconds have elapsed without an acknowledgement from the client:
|
||||
*
|
||||
* ```
|
||||
* socket.timeout(5000).emit("my-event", (err) => {
|
||||
* if (err) {
|
||||
* // the client did not acknowledge the event in the given delay
|
||||
* }
|
||||
* });
|
||||
* ```
|
||||
*
|
||||
* @returns self
|
||||
* @public
|
||||
*/
|
||||
timeout(timeout) {
|
||||
this.flags.timeout = timeout;
|
||||
return this;
|
||||
}
|
||||
/**
|
||||
* Dispatch incoming event to socket listeners.
|
||||
*
|
||||
* @param {Array} event - event that will get emitted
|
||||
* @private
|
||||
*/
|
||||
dispatch(event) {
|
||||
debug("dispatching an event %j", event);
|
||||
this.run(event, (err) => {
|
||||
process.nextTick(() => {
|
||||
if (err) {
|
||||
return this._onerror(err);
|
||||
}
|
||||
if (this.connected) {
|
||||
super.emitUntyped.apply(this, event);
|
||||
}
|
||||
else {
|
||||
debug("ignore packet received after disconnection");
|
||||
}
|
||||
});
|
||||
});
|
||||
}
|
||||
/**
|
||||
* Sets up socket middleware.
|
||||
*
|
||||
* @param {Function} fn - middleware function (event, next)
|
||||
* @return {Socket} self
|
||||
* @public
|
||||
*/
|
||||
use(fn) {
|
||||
this.fns.push(fn);
|
||||
return this;
|
||||
}
|
||||
/**
|
||||
* Executes the middleware for an incoming event.
|
||||
*
|
||||
* @param {Array} event - event that will get emitted
|
||||
* @param {Function} fn - last fn call in the middleware
|
||||
* @private
|
||||
*/
|
||||
run(event, fn) {
|
||||
const fns = this.fns.slice(0);
|
||||
if (!fns.length)
|
||||
return fn(null);
|
||||
function run(i) {
|
||||
fns[i](event, function (err) {
|
||||
// upon error, short-circuit
|
||||
if (err)
|
||||
return fn(err);
|
||||
// if no middleware left, summon callback
|
||||
if (!fns[i + 1])
|
||||
return fn(null);
|
||||
// go on to next
|
||||
run(i + 1);
|
||||
});
|
||||
}
|
||||
run(0);
|
||||
}
|
||||
/**
|
||||
* Whether the socket is currently disconnected
|
||||
*/
|
||||
get disconnected() {
|
||||
return !this.connected;
|
||||
}
|
||||
/**
|
||||
* A reference to the request that originated the underlying Engine.IO Socket.
|
||||
*
|
||||
* @public
|
||||
*/
|
||||
get request() {
|
||||
return this.client.request;
|
||||
}
|
||||
/**
|
||||
* A reference to the underlying Client transport connection (Engine.IO Socket object).
|
||||
*
|
||||
* @public
|
||||
*/
|
||||
get conn() {
|
||||
return this.client.conn;
|
||||
}
|
||||
/**
|
||||
* @public
|
||||
*/
|
||||
get rooms() {
|
||||
return this.adapter.socketRooms(this.id) || new Set();
|
||||
}
|
||||
/**
|
||||
* Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
|
||||
* callback.
|
||||
*
|
||||
* @param listener
|
||||
* @public
|
||||
*/
|
||||
onAny(listener) {
|
||||
this._anyListeners = this._anyListeners || [];
|
||||
this._anyListeners.push(listener);
|
||||
return this;
|
||||
}
|
||||
/**
|
||||
* Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
|
||||
* callback. The listener is added to the beginning of the listeners array.
|
||||
*
|
||||
* @param listener
|
||||
* @public
|
||||
*/
|
||||
prependAny(listener) {
|
||||
this._anyListeners = this._anyListeners || [];
|
||||
this._anyListeners.unshift(listener);
|
||||
return this;
|
||||
}
|
||||
/**
|
||||
* Removes the listener that will be fired when any event is emitted.
|
||||
*
|
||||
* @param listener
|
||||
* @public
|
||||
*/
|
||||
offAny(listener) {
|
||||
if (!this._anyListeners) {
|
||||
return this;
|
||||
}
|
||||
if (listener) {
|
||||
const listeners = this._anyListeners;
|
||||
for (let i = 0; i < listeners.length; i++) {
|
||||
if (listener === listeners[i]) {
|
||||
listeners.splice(i, 1);
|
||||
return this;
|
||||
}
|
||||
}
|
||||
}
|
||||
else {
|
||||
this._anyListeners = [];
|
||||
}
|
||||
return this;
|
||||
}
|
||||
/**
|
||||
* Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,
|
||||
* e.g. to remove listeners.
|
||||
*
|
||||
* @public
|
||||
*/
|
||||
listenersAny() {
|
||||
return this._anyListeners || [];
|
||||
}
|
||||
newBroadcastOperator() {
|
||||
const flags = Object.assign({}, this.flags);
|
||||
this.flags = {};
|
||||
return new broadcast_operator_1.BroadcastOperator(this.adapter, new Set(), new Set([this.id]), flags);
|
||||
}
|
||||
}
|
||||
exports.Socket = Socket;
|
||||
Reference in New Issue
Block a user