4385 lines
132 KiB
JavaScript
4385 lines
132 KiB
JavaScript
/*!
|
|
* Socket.IO v4.7.2
|
|
* (c) 2014-2023 Guillermo Rauch
|
|
* Released under the MIT License.
|
|
*/
|
|
(function (global, factory) {
|
|
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
|
|
typeof define === 'function' && define.amd ? define(factory) :
|
|
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.io = factory());
|
|
})(this, (function () { 'use strict';
|
|
|
|
function _typeof(obj) {
|
|
"@babel/helpers - typeof";
|
|
|
|
return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
|
|
return typeof obj;
|
|
} : function (obj) {
|
|
return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
|
|
}, _typeof(obj);
|
|
}
|
|
function _classCallCheck(instance, Constructor) {
|
|
if (!(instance instanceof Constructor)) {
|
|
throw new TypeError("Cannot call a class as a 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;
|
|
if ("value" in descriptor) descriptor.writable = true;
|
|
Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor);
|
|
}
|
|
}
|
|
function _createClass(Constructor, protoProps, staticProps) {
|
|
if (protoProps) _defineProperties(Constructor.prototype, protoProps);
|
|
if (staticProps) _defineProperties(Constructor, staticProps);
|
|
Object.defineProperty(Constructor, "prototype", {
|
|
writable: false
|
|
});
|
|
return Constructor;
|
|
}
|
|
function _extends() {
|
|
_extends = Object.assign ? Object.assign.bind() : function (target) {
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
var source = arguments[i];
|
|
for (var key in source) {
|
|
if (Object.prototype.hasOwnProperty.call(source, key)) {
|
|
target[key] = source[key];
|
|
}
|
|
}
|
|
}
|
|
return target;
|
|
};
|
|
return _extends.apply(this, arguments);
|
|
}
|
|
function _inherits(subClass, superClass) {
|
|
if (typeof superClass !== "function" && superClass !== null) {
|
|
throw new TypeError("Super expression must either be null or a function");
|
|
}
|
|
subClass.prototype = Object.create(superClass && superClass.prototype, {
|
|
constructor: {
|
|
value: subClass,
|
|
writable: true,
|
|
configurable: true
|
|
}
|
|
});
|
|
Object.defineProperty(subClass, "prototype", {
|
|
writable: false
|
|
});
|
|
if (superClass) _setPrototypeOf(subClass, superClass);
|
|
}
|
|
function _getPrototypeOf(o) {
|
|
_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) {
|
|
return o.__proto__ || Object.getPrototypeOf(o);
|
|
};
|
|
return _getPrototypeOf(o);
|
|
}
|
|
function _setPrototypeOf(o, p) {
|
|
_setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) {
|
|
o.__proto__ = p;
|
|
return o;
|
|
};
|
|
return _setPrototypeOf(o, p);
|
|
}
|
|
function _isNativeReflectConstruct() {
|
|
if (typeof Reflect === "undefined" || !Reflect.construct) return false;
|
|
if (Reflect.construct.sham) return false;
|
|
if (typeof Proxy === "function") return true;
|
|
try {
|
|
Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
|
|
return true;
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
function _construct(Parent, args, Class) {
|
|
if (_isNativeReflectConstruct()) {
|
|
_construct = Reflect.construct.bind();
|
|
} else {
|
|
_construct = function _construct(Parent, args, Class) {
|
|
var a = [null];
|
|
a.push.apply(a, args);
|
|
var Constructor = Function.bind.apply(Parent, a);
|
|
var instance = new Constructor();
|
|
if (Class) _setPrototypeOf(instance, Class.prototype);
|
|
return instance;
|
|
};
|
|
}
|
|
return _construct.apply(null, arguments);
|
|
}
|
|
function _isNativeFunction(fn) {
|
|
return Function.toString.call(fn).indexOf("[native code]") !== -1;
|
|
}
|
|
function _wrapNativeSuper(Class) {
|
|
var _cache = typeof Map === "function" ? new Map() : undefined;
|
|
_wrapNativeSuper = function _wrapNativeSuper(Class) {
|
|
if (Class === null || !_isNativeFunction(Class)) return Class;
|
|
if (typeof Class !== "function") {
|
|
throw new TypeError("Super expression must either be null or a function");
|
|
}
|
|
if (typeof _cache !== "undefined") {
|
|
if (_cache.has(Class)) return _cache.get(Class);
|
|
_cache.set(Class, Wrapper);
|
|
}
|
|
function Wrapper() {
|
|
return _construct(Class, arguments, _getPrototypeOf(this).constructor);
|
|
}
|
|
Wrapper.prototype = Object.create(Class.prototype, {
|
|
constructor: {
|
|
value: Wrapper,
|
|
enumerable: false,
|
|
writable: true,
|
|
configurable: true
|
|
}
|
|
});
|
|
return _setPrototypeOf(Wrapper, Class);
|
|
};
|
|
return _wrapNativeSuper(Class);
|
|
}
|
|
function _assertThisInitialized(self) {
|
|
if (self === void 0) {
|
|
throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
|
|
}
|
|
return self;
|
|
}
|
|
function _possibleConstructorReturn(self, call) {
|
|
if (call && (typeof call === "object" || typeof call === "function")) {
|
|
return call;
|
|
} else if (call !== void 0) {
|
|
throw new TypeError("Derived constructors may only return object or undefined");
|
|
}
|
|
return _assertThisInitialized(self);
|
|
}
|
|
function _createSuper(Derived) {
|
|
var hasNativeReflectConstruct = _isNativeReflectConstruct();
|
|
return function _createSuperInternal() {
|
|
var Super = _getPrototypeOf(Derived),
|
|
result;
|
|
if (hasNativeReflectConstruct) {
|
|
var NewTarget = _getPrototypeOf(this).constructor;
|
|
result = Reflect.construct(Super, arguments, NewTarget);
|
|
} else {
|
|
result = Super.apply(this, arguments);
|
|
}
|
|
return _possibleConstructorReturn(this, result);
|
|
};
|
|
}
|
|
function _superPropBase(object, property) {
|
|
while (!Object.prototype.hasOwnProperty.call(object, property)) {
|
|
object = _getPrototypeOf(object);
|
|
if (object === null) break;
|
|
}
|
|
return object;
|
|
}
|
|
function _get() {
|
|
if (typeof Reflect !== "undefined" && Reflect.get) {
|
|
_get = Reflect.get.bind();
|
|
} else {
|
|
_get = function _get(target, property, receiver) {
|
|
var base = _superPropBase(target, property);
|
|
if (!base) return;
|
|
var desc = Object.getOwnPropertyDescriptor(base, property);
|
|
if (desc.get) {
|
|
return desc.get.call(arguments.length < 3 ? target : receiver);
|
|
}
|
|
return desc.value;
|
|
};
|
|
}
|
|
return _get.apply(this, arguments);
|
|
}
|
|
function _unsupportedIterableToArray(o, minLen) {
|
|
if (!o) return;
|
|
if (typeof o === "string") return _arrayLikeToArray(o, minLen);
|
|
var n = Object.prototype.toString.call(o).slice(8, -1);
|
|
if (n === "Object" && o.constructor) n = o.constructor.name;
|
|
if (n === "Map" || n === "Set") return Array.from(o);
|
|
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
|
|
}
|
|
function _arrayLikeToArray(arr, len) {
|
|
if (len == null || len > arr.length) len = arr.length;
|
|
for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
|
|
return arr2;
|
|
}
|
|
function _createForOfIteratorHelper(o, allowArrayLike) {
|
|
var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"];
|
|
if (!it) {
|
|
if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
|
|
if (it) o = it;
|
|
var i = 0;
|
|
var F = function () {};
|
|
return {
|
|
s: F,
|
|
n: function () {
|
|
if (i >= o.length) return {
|
|
done: true
|
|
};
|
|
return {
|
|
done: false,
|
|
value: o[i++]
|
|
};
|
|
},
|
|
e: function (e) {
|
|
throw e;
|
|
},
|
|
f: F
|
|
};
|
|
}
|
|
throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
|
|
}
|
|
var normalCompletion = true,
|
|
didErr = false,
|
|
err;
|
|
return {
|
|
s: function () {
|
|
it = it.call(o);
|
|
},
|
|
n: function () {
|
|
var step = it.next();
|
|
normalCompletion = step.done;
|
|
return step;
|
|
},
|
|
e: function (e) {
|
|
didErr = true;
|
|
err = e;
|
|
},
|
|
f: function () {
|
|
try {
|
|
if (!normalCompletion && it.return != null) it.return();
|
|
} finally {
|
|
if (didErr) throw err;
|
|
}
|
|
}
|
|
};
|
|
}
|
|
function _toPrimitive(input, hint) {
|
|
if (typeof input !== "object" || input === null) return input;
|
|
var prim = input[Symbol.toPrimitive];
|
|
if (prim !== undefined) {
|
|
var res = prim.call(input, hint || "default");
|
|
if (typeof res !== "object") return res;
|
|
throw new TypeError("@@toPrimitive must return a primitive value.");
|
|
}
|
|
return (hint === "string" ? String : Number)(input);
|
|
}
|
|
function _toPropertyKey(arg) {
|
|
var key = _toPrimitive(arg, "string");
|
|
return typeof key === "symbol" ? key : String(key);
|
|
}
|
|
|
|
var PACKET_TYPES = Object.create(null); // no Map = no polyfill
|
|
PACKET_TYPES["open"] = "0";
|
|
PACKET_TYPES["close"] = "1";
|
|
PACKET_TYPES["ping"] = "2";
|
|
PACKET_TYPES["pong"] = "3";
|
|
PACKET_TYPES["message"] = "4";
|
|
PACKET_TYPES["upgrade"] = "5";
|
|
PACKET_TYPES["noop"] = "6";
|
|
var PACKET_TYPES_REVERSE = Object.create(null);
|
|
Object.keys(PACKET_TYPES).forEach(function (key) {
|
|
PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;
|
|
});
|
|
var ERROR_PACKET = {
|
|
type: "error",
|
|
data: "parser error"
|
|
};
|
|
|
|
var withNativeBlob$1 = typeof Blob === "function" || typeof Blob !== "undefined" && Object.prototype.toString.call(Blob) === "[object BlobConstructor]";
|
|
var withNativeArrayBuffer$2 = typeof ArrayBuffer === "function";
|
|
// ArrayBuffer.isView method is not defined in IE10
|
|
var isView$1 = function isView(obj) {
|
|
return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj && obj.buffer instanceof ArrayBuffer;
|
|
};
|
|
var encodePacket = function encodePacket(_ref, supportsBinary, callback) {
|
|
var type = _ref.type,
|
|
data = _ref.data;
|
|
if (withNativeBlob$1 && data instanceof Blob) {
|
|
if (supportsBinary) {
|
|
return callback(data);
|
|
} else {
|
|
return encodeBlobAsBase64(data, callback);
|
|
}
|
|
} else if (withNativeArrayBuffer$2 && (data instanceof ArrayBuffer || isView$1(data))) {
|
|
if (supportsBinary) {
|
|
return callback(data);
|
|
} else {
|
|
return encodeBlobAsBase64(new Blob([data]), callback);
|
|
}
|
|
}
|
|
// plain string
|
|
return callback(PACKET_TYPES[type] + (data || ""));
|
|
};
|
|
var encodeBlobAsBase64 = function encodeBlobAsBase64(data, callback) {
|
|
var fileReader = new FileReader();
|
|
fileReader.onload = function () {
|
|
var content = fileReader.result.split(",")[1];
|
|
callback("b" + (content || ""));
|
|
};
|
|
return fileReader.readAsDataURL(data);
|
|
};
|
|
function toArray(data) {
|
|
if (data instanceof Uint8Array) {
|
|
return data;
|
|
} else if (data instanceof ArrayBuffer) {
|
|
return new Uint8Array(data);
|
|
} else {
|
|
return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);
|
|
}
|
|
}
|
|
var TEXT_ENCODER;
|
|
function encodePacketToBinary(packet, callback) {
|
|
if (withNativeBlob$1 && packet.data instanceof Blob) {
|
|
return packet.data.arrayBuffer().then(toArray).then(callback);
|
|
} else if (withNativeArrayBuffer$2 && (packet.data instanceof ArrayBuffer || isView$1(packet.data))) {
|
|
return callback(toArray(packet.data));
|
|
}
|
|
encodePacket(packet, false, function (encoded) {
|
|
if (!TEXT_ENCODER) {
|
|
TEXT_ENCODER = new TextEncoder();
|
|
}
|
|
callback(TEXT_ENCODER.encode(encoded));
|
|
});
|
|
}
|
|
|
|
// imported from https://github.com/socketio/base64-arraybuffer
|
|
var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
|
|
// Use a lookup table to find the index.
|
|
var lookup$1 = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
|
|
for (var i$1 = 0; i$1 < chars.length; i$1++) {
|
|
lookup$1[chars.charCodeAt(i$1)] = i$1;
|
|
}
|
|
var decode$1 = function decode(base64) {
|
|
var bufferLength = base64.length * 0.75,
|
|
len = base64.length,
|
|
i,
|
|
p = 0,
|
|
encoded1,
|
|
encoded2,
|
|
encoded3,
|
|
encoded4;
|
|
if (base64[base64.length - 1] === '=') {
|
|
bufferLength--;
|
|
if (base64[base64.length - 2] === '=') {
|
|
bufferLength--;
|
|
}
|
|
}
|
|
var arraybuffer = new ArrayBuffer(bufferLength),
|
|
bytes = new Uint8Array(arraybuffer);
|
|
for (i = 0; i < len; i += 4) {
|
|
encoded1 = lookup$1[base64.charCodeAt(i)];
|
|
encoded2 = lookup$1[base64.charCodeAt(i + 1)];
|
|
encoded3 = lookup$1[base64.charCodeAt(i + 2)];
|
|
encoded4 = lookup$1[base64.charCodeAt(i + 3)];
|
|
bytes[p++] = encoded1 << 2 | encoded2 >> 4;
|
|
bytes[p++] = (encoded2 & 15) << 4 | encoded3 >> 2;
|
|
bytes[p++] = (encoded3 & 3) << 6 | encoded4 & 63;
|
|
}
|
|
return arraybuffer;
|
|
};
|
|
|
|
var withNativeArrayBuffer$1 = typeof ArrayBuffer === "function";
|
|
var decodePacket = function decodePacket(encodedPacket, binaryType) {
|
|
if (typeof encodedPacket !== "string") {
|
|
return {
|
|
type: "message",
|
|
data: mapBinary(encodedPacket, binaryType)
|
|
};
|
|
}
|
|
var type = encodedPacket.charAt(0);
|
|
if (type === "b") {
|
|
return {
|
|
type: "message",
|
|
data: decodeBase64Packet(encodedPacket.substring(1), binaryType)
|
|
};
|
|
}
|
|
var packetType = PACKET_TYPES_REVERSE[type];
|
|
if (!packetType) {
|
|
return ERROR_PACKET;
|
|
}
|
|
return encodedPacket.length > 1 ? {
|
|
type: PACKET_TYPES_REVERSE[type],
|
|
data: encodedPacket.substring(1)
|
|
} : {
|
|
type: PACKET_TYPES_REVERSE[type]
|
|
};
|
|
};
|
|
var decodeBase64Packet = function decodeBase64Packet(data, binaryType) {
|
|
if (withNativeArrayBuffer$1) {
|
|
var decoded = decode$1(data);
|
|
return mapBinary(decoded, binaryType);
|
|
} else {
|
|
return {
|
|
base64: true,
|
|
data: data
|
|
}; // fallback for old browsers
|
|
}
|
|
};
|
|
|
|
var mapBinary = function mapBinary(data, binaryType) {
|
|
switch (binaryType) {
|
|
case "blob":
|
|
if (data instanceof Blob) {
|
|
// from WebSocket + binaryType "blob"
|
|
return data;
|
|
} else {
|
|
// from HTTP long-polling or WebTransport
|
|
return new Blob([data]);
|
|
}
|
|
case "arraybuffer":
|
|
default:
|
|
if (data instanceof ArrayBuffer) {
|
|
// from HTTP long-polling (base64) or WebSocket + binaryType "arraybuffer"
|
|
return data;
|
|
} else {
|
|
// from WebTransport (Uint8Array)
|
|
return data.buffer;
|
|
}
|
|
}
|
|
};
|
|
|
|
var SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text
|
|
var encodePayload = function encodePayload(packets, callback) {
|
|
// some packets may be added to the array while encoding, so the initial length must be saved
|
|
var length = packets.length;
|
|
var encodedPackets = new Array(length);
|
|
var count = 0;
|
|
packets.forEach(function (packet, i) {
|
|
// force base64 encoding for binary packets
|
|
encodePacket(packet, false, function (encodedPacket) {
|
|
encodedPackets[i] = encodedPacket;
|
|
if (++count === length) {
|
|
callback(encodedPackets.join(SEPARATOR));
|
|
}
|
|
});
|
|
});
|
|
};
|
|
var decodePayload = function decodePayload(encodedPayload, binaryType) {
|
|
var encodedPackets = encodedPayload.split(SEPARATOR);
|
|
var packets = [];
|
|
for (var i = 0; i < encodedPackets.length; i++) {
|
|
var decodedPacket = decodePacket(encodedPackets[i], binaryType);
|
|
packets.push(decodedPacket);
|
|
if (decodedPacket.type === "error") {
|
|
break;
|
|
}
|
|
}
|
|
return packets;
|
|
};
|
|
function createPacketEncoderStream() {
|
|
return new TransformStream({
|
|
transform: function transform(packet, controller) {
|
|
encodePacketToBinary(packet, function (encodedPacket) {
|
|
var payloadLength = encodedPacket.length;
|
|
var header;
|
|
// inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length
|
|
if (payloadLength < 126) {
|
|
header = new Uint8Array(1);
|
|
new DataView(header.buffer).setUint8(0, payloadLength);
|
|
} else if (payloadLength < 65536) {
|
|
header = new Uint8Array(3);
|
|
var view = new DataView(header.buffer);
|
|
view.setUint8(0, 126);
|
|
view.setUint16(1, payloadLength);
|
|
} else {
|
|
header = new Uint8Array(9);
|
|
var _view = new DataView(header.buffer);
|
|
_view.setUint8(0, 127);
|
|
_view.setBigUint64(1, BigInt(payloadLength));
|
|
}
|
|
// first bit indicates whether the payload is plain text (0) or binary (1)
|
|
if (packet.data && typeof packet.data !== "string") {
|
|
header[0] |= 0x80;
|
|
}
|
|
controller.enqueue(header);
|
|
controller.enqueue(encodedPacket);
|
|
});
|
|
}
|
|
});
|
|
}
|
|
var TEXT_DECODER;
|
|
function totalLength(chunks) {
|
|
return chunks.reduce(function (acc, chunk) {
|
|
return acc + chunk.length;
|
|
}, 0);
|
|
}
|
|
function concatChunks(chunks, size) {
|
|
if (chunks[0].length === size) {
|
|
return chunks.shift();
|
|
}
|
|
var buffer = new Uint8Array(size);
|
|
var j = 0;
|
|
for (var i = 0; i < size; i++) {
|
|
buffer[i] = chunks[0][j++];
|
|
if (j === chunks[0].length) {
|
|
chunks.shift();
|
|
j = 0;
|
|
}
|
|
}
|
|
if (chunks.length && j < chunks[0].length) {
|
|
chunks[0] = chunks[0].slice(j);
|
|
}
|
|
return buffer;
|
|
}
|
|
function createPacketDecoderStream(maxPayload, binaryType) {
|
|
if (!TEXT_DECODER) {
|
|
TEXT_DECODER = new TextDecoder();
|
|
}
|
|
var chunks = [];
|
|
var state = 0 /* READ_HEADER */;
|
|
var expectedLength = -1;
|
|
var isBinary = false;
|
|
return new TransformStream({
|
|
transform: function transform(chunk, controller) {
|
|
chunks.push(chunk);
|
|
while (true) {
|
|
if (state === 0 /* READ_HEADER */) {
|
|
if (totalLength(chunks) < 1) {
|
|
break;
|
|
}
|
|
var header = concatChunks(chunks, 1);
|
|
isBinary = (header[0] & 0x80) === 0x80;
|
|
expectedLength = header[0] & 0x7f;
|
|
if (expectedLength < 126) {
|
|
state = 3 /* READ_PAYLOAD */;
|
|
} else if (expectedLength === 126) {
|
|
state = 1 /* READ_EXTENDED_LENGTH_16 */;
|
|
} else {
|
|
state = 2 /* READ_EXTENDED_LENGTH_64 */;
|
|
}
|
|
} else if (state === 1 /* READ_EXTENDED_LENGTH_16 */) {
|
|
if (totalLength(chunks) < 2) {
|
|
break;
|
|
}
|
|
var headerArray = concatChunks(chunks, 2);
|
|
expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);
|
|
state = 3 /* READ_PAYLOAD */;
|
|
} else if (state === 2 /* READ_EXTENDED_LENGTH_64 */) {
|
|
if (totalLength(chunks) < 8) {
|
|
break;
|
|
}
|
|
var _headerArray = concatChunks(chunks, 8);
|
|
var view = new DataView(_headerArray.buffer, _headerArray.byteOffset, _headerArray.length);
|
|
var n = view.getUint32(0);
|
|
if (n > Math.pow(2, 53 - 32) - 1) {
|
|
// the maximum safe integer in JavaScript is 2^53 - 1
|
|
controller.enqueue(ERROR_PACKET);
|
|
break;
|
|
}
|
|
expectedLength = n * Math.pow(2, 32) + view.getUint32(4);
|
|
state = 3 /* READ_PAYLOAD */;
|
|
} else {
|
|
if (totalLength(chunks) < expectedLength) {
|
|
break;
|
|
}
|
|
var data = concatChunks(chunks, expectedLength);
|
|
controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));
|
|
state = 0 /* READ_HEADER */;
|
|
}
|
|
|
|
if (expectedLength === 0 || expectedLength > maxPayload) {
|
|
controller.enqueue(ERROR_PACKET);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
var protocol$1 = 4;
|
|
|
|
/**
|
|
* Initialize a new `Emitter`.
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
function Emitter(obj) {
|
|
if (obj) return mixin(obj);
|
|
}
|
|
|
|
/**
|
|
* Mixin the emitter properties.
|
|
*
|
|
* @param {Object} obj
|
|
* @return {Object}
|
|
* @api private
|
|
*/
|
|
|
|
function mixin(obj) {
|
|
for (var key in Emitter.prototype) {
|
|
obj[key] = Emitter.prototype[key];
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
/**
|
|
* Listen on the given `event` with `fn`.
|
|
*
|
|
* @param {String} event
|
|
* @param {Function} fn
|
|
* @return {Emitter}
|
|
* @api public
|
|
*/
|
|
|
|
Emitter.prototype.on = Emitter.prototype.addEventListener = function (event, fn) {
|
|
this._callbacks = this._callbacks || {};
|
|
(this._callbacks['$' + event] = this._callbacks['$' + event] || []).push(fn);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Adds an `event` listener that will be invoked a single
|
|
* time then automatically removed.
|
|
*
|
|
* @param {String} event
|
|
* @param {Function} fn
|
|
* @return {Emitter}
|
|
* @api public
|
|
*/
|
|
|
|
Emitter.prototype.once = function (event, fn) {
|
|
function on() {
|
|
this.off(event, on);
|
|
fn.apply(this, arguments);
|
|
}
|
|
on.fn = fn;
|
|
this.on(event, on);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Remove the given callback for `event` or all
|
|
* registered callbacks.
|
|
*
|
|
* @param {String} event
|
|
* @param {Function} fn
|
|
* @return {Emitter}
|
|
* @api public
|
|
*/
|
|
|
|
Emitter.prototype.off = Emitter.prototype.removeListener = Emitter.prototype.removeAllListeners = Emitter.prototype.removeEventListener = function (event, fn) {
|
|
this._callbacks = this._callbacks || {};
|
|
|
|
// all
|
|
if (0 == arguments.length) {
|
|
this._callbacks = {};
|
|
return this;
|
|
}
|
|
|
|
// specific event
|
|
var callbacks = this._callbacks['$' + event];
|
|
if (!callbacks) return this;
|
|
|
|
// remove all handlers
|
|
if (1 == arguments.length) {
|
|
delete this._callbacks['$' + event];
|
|
return this;
|
|
}
|
|
|
|
// remove specific handler
|
|
var cb;
|
|
for (var i = 0; i < callbacks.length; i++) {
|
|
cb = callbacks[i];
|
|
if (cb === fn || cb.fn === fn) {
|
|
callbacks.splice(i, 1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Remove event specific arrays for event types that no
|
|
// one is subscribed for to avoid memory leak.
|
|
if (callbacks.length === 0) {
|
|
delete this._callbacks['$' + event];
|
|
}
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Emit `event` with the given args.
|
|
*
|
|
* @param {String} event
|
|
* @param {Mixed} ...
|
|
* @return {Emitter}
|
|
*/
|
|
|
|
Emitter.prototype.emit = function (event) {
|
|
this._callbacks = this._callbacks || {};
|
|
var args = new Array(arguments.length - 1),
|
|
callbacks = this._callbacks['$' + event];
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
args[i - 1] = arguments[i];
|
|
}
|
|
if (callbacks) {
|
|
callbacks = callbacks.slice(0);
|
|
for (var i = 0, len = callbacks.length; i < len; ++i) {
|
|
callbacks[i].apply(this, args);
|
|
}
|
|
}
|
|
return this;
|
|
};
|
|
|
|
// alias used for reserved events (protected method)
|
|
Emitter.prototype.emitReserved = Emitter.prototype.emit;
|
|
|
|
/**
|
|
* Return array of callbacks for `event`.
|
|
*
|
|
* @param {String} event
|
|
* @return {Array}
|
|
* @api public
|
|
*/
|
|
|
|
Emitter.prototype.listeners = function (event) {
|
|
this._callbacks = this._callbacks || {};
|
|
return this._callbacks['$' + event] || [];
|
|
};
|
|
|
|
/**
|
|
* Check if this emitter has `event` handlers.
|
|
*
|
|
* @param {String} event
|
|
* @return {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
Emitter.prototype.hasListeners = function (event) {
|
|
return !!this.listeners(event).length;
|
|
};
|
|
|
|
var globalThisShim = function () {
|
|
if (typeof self !== "undefined") {
|
|
return self;
|
|
} else if (typeof window !== "undefined") {
|
|
return window;
|
|
} else {
|
|
return Function("return this")();
|
|
}
|
|
}();
|
|
|
|
function pick(obj) {
|
|
for (var _len = arguments.length, attr = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
|
|
attr[_key - 1] = arguments[_key];
|
|
}
|
|
return attr.reduce(function (acc, k) {
|
|
if (obj.hasOwnProperty(k)) {
|
|
acc[k] = obj[k];
|
|
}
|
|
return acc;
|
|
}, {});
|
|
}
|
|
// Keep a reference to the real timeout functions so they can be used when overridden
|
|
var NATIVE_SET_TIMEOUT = globalThisShim.setTimeout;
|
|
var NATIVE_CLEAR_TIMEOUT = globalThisShim.clearTimeout;
|
|
function installTimerFunctions(obj, opts) {
|
|
if (opts.useNativeTimers) {
|
|
obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThisShim);
|
|
obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThisShim);
|
|
} else {
|
|
obj.setTimeoutFn = globalThisShim.setTimeout.bind(globalThisShim);
|
|
obj.clearTimeoutFn = globalThisShim.clearTimeout.bind(globalThisShim);
|
|
}
|
|
}
|
|
// base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)
|
|
var BASE64_OVERHEAD = 1.33;
|
|
// we could also have used `new Blob([obj]).size`, but it isn't supported in IE9
|
|
function byteLength(obj) {
|
|
if (typeof obj === "string") {
|
|
return utf8Length(obj);
|
|
}
|
|
// arraybuffer or blob
|
|
return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);
|
|
}
|
|
function utf8Length(str) {
|
|
var c = 0,
|
|
length = 0;
|
|
for (var i = 0, l = str.length; i < l; i++) {
|
|
c = str.charCodeAt(i);
|
|
if (c < 0x80) {
|
|
length += 1;
|
|
} else if (c < 0x800) {
|
|
length += 2;
|
|
} else if (c < 0xd800 || c >= 0xe000) {
|
|
length += 3;
|
|
} else {
|
|
i++;
|
|
length += 4;
|
|
}
|
|
}
|
|
return length;
|
|
}
|
|
|
|
// imported from https://github.com/galkn/querystring
|
|
/**
|
|
* Compiles a querystring
|
|
* Returns string representation of the object
|
|
*
|
|
* @param {Object}
|
|
* @api private
|
|
*/
|
|
function encode$1(obj) {
|
|
var str = '';
|
|
for (var i in obj) {
|
|
if (obj.hasOwnProperty(i)) {
|
|
if (str.length) str += '&';
|
|
str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
|
|
}
|
|
}
|
|
return str;
|
|
}
|
|
/**
|
|
* Parses a simple querystring into an object
|
|
*
|
|
* @param {String} qs
|
|
* @api private
|
|
*/
|
|
function decode(qs) {
|
|
var qry = {};
|
|
var pairs = qs.split('&');
|
|
for (var i = 0, l = pairs.length; i < l; i++) {
|
|
var pair = pairs[i].split('=');
|
|
qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
|
|
}
|
|
return qry;
|
|
}
|
|
|
|
var TransportError = /*#__PURE__*/function (_Error) {
|
|
_inherits(TransportError, _Error);
|
|
var _super = _createSuper(TransportError);
|
|
function TransportError(reason, description, context) {
|
|
var _this;
|
|
_classCallCheck(this, TransportError);
|
|
_this = _super.call(this, reason);
|
|
_this.description = description;
|
|
_this.context = context;
|
|
_this.type = "TransportError";
|
|
return _this;
|
|
}
|
|
return _createClass(TransportError);
|
|
}( /*#__PURE__*/_wrapNativeSuper(Error));
|
|
var Transport = /*#__PURE__*/function (_Emitter) {
|
|
_inherits(Transport, _Emitter);
|
|
var _super2 = _createSuper(Transport);
|
|
/**
|
|
* Transport abstract constructor.
|
|
*
|
|
* @param {Object} opts - options
|
|
* @protected
|
|
*/
|
|
function Transport(opts) {
|
|
var _this2;
|
|
_classCallCheck(this, Transport);
|
|
_this2 = _super2.call(this);
|
|
_this2.writable = false;
|
|
installTimerFunctions(_assertThisInitialized(_this2), opts);
|
|
_this2.opts = opts;
|
|
_this2.query = opts.query;
|
|
_this2.socket = opts.socket;
|
|
return _this2;
|
|
}
|
|
/**
|
|
* Emits an error.
|
|
*
|
|
* @param {String} reason
|
|
* @param description
|
|
* @param context - the error context
|
|
* @return {Transport} for chaining
|
|
* @protected
|
|
*/
|
|
_createClass(Transport, [{
|
|
key: "onError",
|
|
value: function onError(reason, description, context) {
|
|
_get(_getPrototypeOf(Transport.prototype), "emitReserved", this).call(this, "error", new TransportError(reason, description, context));
|
|
return this;
|
|
}
|
|
/**
|
|
* Opens the transport.
|
|
*/
|
|
}, {
|
|
key: "open",
|
|
value: function open() {
|
|
this.readyState = "opening";
|
|
this.doOpen();
|
|
return this;
|
|
}
|
|
/**
|
|
* Closes the transport.
|
|
*/
|
|
}, {
|
|
key: "close",
|
|
value: function close() {
|
|
if (this.readyState === "opening" || this.readyState === "open") {
|
|
this.doClose();
|
|
this.onClose();
|
|
}
|
|
return this;
|
|
}
|
|
/**
|
|
* Sends multiple packets.
|
|
*
|
|
* @param {Array} packets
|
|
*/
|
|
}, {
|
|
key: "send",
|
|
value: function send(packets) {
|
|
if (this.readyState === "open") {
|
|
this.write(packets);
|
|
}
|
|
}
|
|
/**
|
|
* Called upon open
|
|
*
|
|
* @protected
|
|
*/
|
|
}, {
|
|
key: "onOpen",
|
|
value: function onOpen() {
|
|
this.readyState = "open";
|
|
this.writable = true;
|
|
_get(_getPrototypeOf(Transport.prototype), "emitReserved", this).call(this, "open");
|
|
}
|
|
/**
|
|
* Called with data.
|
|
*
|
|
* @param {String} data
|
|
* @protected
|
|
*/
|
|
}, {
|
|
key: "onData",
|
|
value: function onData(data) {
|
|
var packet = decodePacket(data, this.socket.binaryType);
|
|
this.onPacket(packet);
|
|
}
|
|
/**
|
|
* Called with a decoded packet.
|
|
*
|
|
* @protected
|
|
*/
|
|
}, {
|
|
key: "onPacket",
|
|
value: function onPacket(packet) {
|
|
_get(_getPrototypeOf(Transport.prototype), "emitReserved", this).call(this, "packet", packet);
|
|
}
|
|
/**
|
|
* Called upon close.
|
|
*
|
|
* @protected
|
|
*/
|
|
}, {
|
|
key: "onClose",
|
|
value: function onClose(details) {
|
|
this.readyState = "closed";
|
|
_get(_getPrototypeOf(Transport.prototype), "emitReserved", this).call(this, "close", details);
|
|
}
|
|
/**
|
|
* Pauses the transport, in order not to lose packets during an upgrade.
|
|
*
|
|
* @param onPause
|
|
*/
|
|
}, {
|
|
key: "pause",
|
|
value: function pause(onPause) {}
|
|
}, {
|
|
key: "createUri",
|
|
value: function createUri(schema) {
|
|
var query = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
|
|
return schema + "://" + this._hostname() + this._port() + this.opts.path + this._query(query);
|
|
}
|
|
}, {
|
|
key: "_hostname",
|
|
value: function _hostname() {
|
|
var hostname = this.opts.hostname;
|
|
return hostname.indexOf(":") === -1 ? hostname : "[" + hostname + "]";
|
|
}
|
|
}, {
|
|
key: "_port",
|
|
value: function _port() {
|
|
if (this.opts.port && (this.opts.secure && Number(this.opts.port !== 443) || !this.opts.secure && Number(this.opts.port) !== 80)) {
|
|
return ":" + this.opts.port;
|
|
} else {
|
|
return "";
|
|
}
|
|
}
|
|
}, {
|
|
key: "_query",
|
|
value: function _query(query) {
|
|
var encodedQuery = encode$1(query);
|
|
return encodedQuery.length ? "?" + encodedQuery : "";
|
|
}
|
|
}]);
|
|
return Transport;
|
|
}(Emitter);
|
|
|
|
// imported from https://github.com/unshiftio/yeast
|
|
|
|
var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''),
|
|
length = 64,
|
|
map = {};
|
|
var seed = 0,
|
|
i = 0,
|
|
prev;
|
|
/**
|
|
* Return a string representing the specified number.
|
|
*
|
|
* @param {Number} num The number to convert.
|
|
* @returns {String} The string representation of the number.
|
|
* @api public
|
|
*/
|
|
function encode(num) {
|
|
var encoded = '';
|
|
do {
|
|
encoded = alphabet[num % length] + encoded;
|
|
num = Math.floor(num / length);
|
|
} while (num > 0);
|
|
return encoded;
|
|
}
|
|
/**
|
|
* Yeast: A tiny growing id generator.
|
|
*
|
|
* @returns {String} A unique id.
|
|
* @api public
|
|
*/
|
|
function yeast() {
|
|
var now = encode(+new Date());
|
|
if (now !== prev) return seed = 0, prev = now;
|
|
return now + '.' + encode(seed++);
|
|
}
|
|
//
|
|
// Map each character to its index.
|
|
//
|
|
for (; i < length; i++) map[alphabet[i]] = i;
|
|
|
|
// imported from https://github.com/component/has-cors
|
|
var value = false;
|
|
try {
|
|
value = typeof XMLHttpRequest !== 'undefined' && 'withCredentials' in new XMLHttpRequest();
|
|
} catch (err) {
|
|
// if XMLHttp support is disabled in IE then it will throw
|
|
// when trying to create
|
|
}
|
|
var hasCORS = value;
|
|
|
|
// browser shim for xmlhttprequest module
|
|
function XHR(opts) {
|
|
var xdomain = opts.xdomain;
|
|
// XMLHttpRequest can be disabled on IE
|
|
try {
|
|
if ("undefined" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
|
|
return new XMLHttpRequest();
|
|
}
|
|
} catch (e) {}
|
|
if (!xdomain) {
|
|
try {
|
|
return new globalThisShim[["Active"].concat("Object").join("X")]("Microsoft.XMLHTTP");
|
|
} catch (e) {}
|
|
}
|
|
}
|
|
function createCookieJar() {}
|
|
|
|
function empty() {}
|
|
var hasXHR2 = function () {
|
|
var xhr = new XHR({
|
|
xdomain: false
|
|
});
|
|
return null != xhr.responseType;
|
|
}();
|
|
var Polling = /*#__PURE__*/function (_Transport) {
|
|
_inherits(Polling, _Transport);
|
|
var _super = _createSuper(Polling);
|
|
/**
|
|
* XHR Polling constructor.
|
|
*
|
|
* @param {Object} opts
|
|
* @package
|
|
*/
|
|
function Polling(opts) {
|
|
var _this;
|
|
_classCallCheck(this, Polling);
|
|
_this = _super.call(this, opts);
|
|
_this.polling = false;
|
|
if (typeof location !== "undefined") {
|
|
var isSSL = "https:" === location.protocol;
|
|
var port = location.port;
|
|
// some user agents have empty `location.port`
|
|
if (!port) {
|
|
port = isSSL ? "443" : "80";
|
|
}
|
|
_this.xd = typeof location !== "undefined" && opts.hostname !== location.hostname || port !== opts.port;
|
|
}
|
|
/**
|
|
* XHR supports binary
|
|
*/
|
|
var forceBase64 = opts && opts.forceBase64;
|
|
_this.supportsBinary = hasXHR2 && !forceBase64;
|
|
if (_this.opts.withCredentials) {
|
|
_this.cookieJar = createCookieJar();
|
|
}
|
|
return _this;
|
|
}
|
|
_createClass(Polling, [{
|
|
key: "name",
|
|
get: function get() {
|
|
return "polling";
|
|
}
|
|
/**
|
|
* Opens the socket (triggers polling). We write a PING message to determine
|
|
* when the transport is open.
|
|
*
|
|
* @protected
|
|
*/
|
|
}, {
|
|
key: "doOpen",
|
|
value: function doOpen() {
|
|
this.poll();
|
|
}
|
|
/**
|
|
* Pauses polling.
|
|
*
|
|
* @param {Function} onPause - callback upon buffers are flushed and transport is paused
|
|
* @package
|
|
*/
|
|
}, {
|
|
key: "pause",
|
|
value: function pause(onPause) {
|
|
var _this2 = this;
|
|
this.readyState = "pausing";
|
|
var pause = function pause() {
|
|
_this2.readyState = "paused";
|
|
onPause();
|
|
};
|
|
if (this.polling || !this.writable) {
|
|
var total = 0;
|
|
if (this.polling) {
|
|
total++;
|
|
this.once("pollComplete", function () {
|
|
--total || pause();
|
|
});
|
|
}
|
|
if (!this.writable) {
|
|
total++;
|
|
this.once("drain", function () {
|
|
--total || pause();
|
|
});
|
|
}
|
|
} else {
|
|
pause();
|
|
}
|
|
}
|
|
/**
|
|
* Starts polling cycle.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "poll",
|
|
value: function poll() {
|
|
this.polling = true;
|
|
this.doPoll();
|
|
this.emitReserved("poll");
|
|
}
|
|
/**
|
|
* Overloads onData to detect payloads.
|
|
*
|
|
* @protected
|
|
*/
|
|
}, {
|
|
key: "onData",
|
|
value: function onData(data) {
|
|
var _this3 = this;
|
|
var callback = function callback(packet) {
|
|
// if its the first message we consider the transport open
|
|
if ("opening" === _this3.readyState && packet.type === "open") {
|
|
_this3.onOpen();
|
|
}
|
|
// if its a close packet, we close the ongoing requests
|
|
if ("close" === packet.type) {
|
|
_this3.onClose({
|
|
description: "transport closed by the server"
|
|
});
|
|
return false;
|
|
}
|
|
// otherwise bypass onData and handle the message
|
|
_this3.onPacket(packet);
|
|
};
|
|
// decode payload
|
|
decodePayload(data, this.socket.binaryType).forEach(callback);
|
|
// if an event did not trigger closing
|
|
if ("closed" !== this.readyState) {
|
|
// if we got data we're not polling
|
|
this.polling = false;
|
|
this.emitReserved("pollComplete");
|
|
if ("open" === this.readyState) {
|
|
this.poll();
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* For polling, send a close packet.
|
|
*
|
|
* @protected
|
|
*/
|
|
}, {
|
|
key: "doClose",
|
|
value: function doClose() {
|
|
var _this4 = this;
|
|
var close = function close() {
|
|
_this4.write([{
|
|
type: "close"
|
|
}]);
|
|
};
|
|
if ("open" === this.readyState) {
|
|
close();
|
|
} else {
|
|
// in case we're trying to close while
|
|
// handshaking is in progress (GH-164)
|
|
this.once("open", close);
|
|
}
|
|
}
|
|
/**
|
|
* Writes a packets payload.
|
|
*
|
|
* @param {Array} packets - data packets
|
|
* @protected
|
|
*/
|
|
}, {
|
|
key: "write",
|
|
value: function write(packets) {
|
|
var _this5 = this;
|
|
this.writable = false;
|
|
encodePayload(packets, function (data) {
|
|
_this5.doWrite(data, function () {
|
|
_this5.writable = true;
|
|
_this5.emitReserved("drain");
|
|
});
|
|
});
|
|
}
|
|
/**
|
|
* Generates uri for connection.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "uri",
|
|
value: function uri() {
|
|
var schema = this.opts.secure ? "https" : "http";
|
|
var query = this.query || {};
|
|
// cache busting is forced
|
|
if (false !== this.opts.timestampRequests) {
|
|
query[this.opts.timestampParam] = yeast();
|
|
}
|
|
if (!this.supportsBinary && !query.sid) {
|
|
query.b64 = 1;
|
|
}
|
|
return this.createUri(schema, query);
|
|
}
|
|
/**
|
|
* Creates a request.
|
|
*
|
|
* @param {String} method
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "request",
|
|
value: function request() {
|
|
var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
|
|
_extends(opts, {
|
|
xd: this.xd,
|
|
cookieJar: this.cookieJar
|
|
}, this.opts);
|
|
return new Request(this.uri(), opts);
|
|
}
|
|
/**
|
|
* Sends data.
|
|
*
|
|
* @param {String} data to send.
|
|
* @param {Function} called upon flush.
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "doWrite",
|
|
value: function doWrite(data, fn) {
|
|
var _this6 = this;
|
|
var req = this.request({
|
|
method: "POST",
|
|
data: data
|
|
});
|
|
req.on("success", fn);
|
|
req.on("error", function (xhrStatus, context) {
|
|
_this6.onError("xhr post error", xhrStatus, context);
|
|
});
|
|
}
|
|
/**
|
|
* Starts a poll cycle.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "doPoll",
|
|
value: function doPoll() {
|
|
var _this7 = this;
|
|
var req = this.request();
|
|
req.on("data", this.onData.bind(this));
|
|
req.on("error", function (xhrStatus, context) {
|
|
_this7.onError("xhr poll error", xhrStatus, context);
|
|
});
|
|
this.pollXhr = req;
|
|
}
|
|
}]);
|
|
return Polling;
|
|
}(Transport);
|
|
var Request = /*#__PURE__*/function (_Emitter) {
|
|
_inherits(Request, _Emitter);
|
|
var _super2 = _createSuper(Request);
|
|
/**
|
|
* Request constructor
|
|
*
|
|
* @param {Object} options
|
|
* @package
|
|
*/
|
|
function Request(uri, opts) {
|
|
var _this8;
|
|
_classCallCheck(this, Request);
|
|
_this8 = _super2.call(this);
|
|
installTimerFunctions(_assertThisInitialized(_this8), opts);
|
|
_this8.opts = opts;
|
|
_this8.method = opts.method || "GET";
|
|
_this8.uri = uri;
|
|
_this8.data = undefined !== opts.data ? opts.data : null;
|
|
_this8.create();
|
|
return _this8;
|
|
}
|
|
/**
|
|
* Creates the XHR object and sends the request.
|
|
*
|
|
* @private
|
|
*/
|
|
_createClass(Request, [{
|
|
key: "create",
|
|
value: function create() {
|
|
var _this9 = this;
|
|
var _a;
|
|
var opts = pick(this.opts, "agent", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "autoUnref");
|
|
opts.xdomain = !!this.opts.xd;
|
|
var xhr = this.xhr = new XHR(opts);
|
|
try {
|
|
xhr.open(this.method, this.uri, true);
|
|
try {
|
|
if (this.opts.extraHeaders) {
|
|
xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);
|
|
for (var i in this.opts.extraHeaders) {
|
|
if (this.opts.extraHeaders.hasOwnProperty(i)) {
|
|
xhr.setRequestHeader(i, this.opts.extraHeaders[i]);
|
|
}
|
|
}
|
|
}
|
|
} catch (e) {}
|
|
if ("POST" === this.method) {
|
|
try {
|
|
xhr.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
|
|
} catch (e) {}
|
|
}
|
|
try {
|
|
xhr.setRequestHeader("Accept", "*/*");
|
|
} catch (e) {}
|
|
(_a = this.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);
|
|
// ie6 check
|
|
if ("withCredentials" in xhr) {
|
|
xhr.withCredentials = this.opts.withCredentials;
|
|
}
|
|
if (this.opts.requestTimeout) {
|
|
xhr.timeout = this.opts.requestTimeout;
|
|
}
|
|
xhr.onreadystatechange = function () {
|
|
var _a;
|
|
if (xhr.readyState === 3) {
|
|
(_a = _this9.opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(xhr);
|
|
}
|
|
if (4 !== xhr.readyState) return;
|
|
if (200 === xhr.status || 1223 === xhr.status) {
|
|
_this9.onLoad();
|
|
} else {
|
|
// make sure the `error` event handler that's user-set
|
|
// does not throw in the same tick and gets caught here
|
|
_this9.setTimeoutFn(function () {
|
|
_this9.onError(typeof xhr.status === "number" ? xhr.status : 0);
|
|
}, 0);
|
|
}
|
|
};
|
|
xhr.send(this.data);
|
|
} catch (e) {
|
|
// Need to defer since .create() is called directly from the constructor
|
|
// and thus the 'error' event can only be only bound *after* this exception
|
|
// occurs. Therefore, also, we cannot throw here at all.
|
|
this.setTimeoutFn(function () {
|
|
_this9.onError(e);
|
|
}, 0);
|
|
return;
|
|
}
|
|
if (typeof document !== "undefined") {
|
|
this.index = Request.requestsCount++;
|
|
Request.requests[this.index] = this;
|
|
}
|
|
}
|
|
/**
|
|
* Called upon error.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onError",
|
|
value: function onError(err) {
|
|
this.emitReserved("error", err, this.xhr);
|
|
this.cleanup(true);
|
|
}
|
|
/**
|
|
* Cleans up house.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "cleanup",
|
|
value: function cleanup(fromError) {
|
|
if ("undefined" === typeof this.xhr || null === this.xhr) {
|
|
return;
|
|
}
|
|
this.xhr.onreadystatechange = empty;
|
|
if (fromError) {
|
|
try {
|
|
this.xhr.abort();
|
|
} catch (e) {}
|
|
}
|
|
if (typeof document !== "undefined") {
|
|
delete Request.requests[this.index];
|
|
}
|
|
this.xhr = null;
|
|
}
|
|
/**
|
|
* Called upon load.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onLoad",
|
|
value: function onLoad() {
|
|
var data = this.xhr.responseText;
|
|
if (data !== null) {
|
|
this.emitReserved("data", data);
|
|
this.emitReserved("success");
|
|
this.cleanup();
|
|
}
|
|
}
|
|
/**
|
|
* Aborts the request.
|
|
*
|
|
* @package
|
|
*/
|
|
}, {
|
|
key: "abort",
|
|
value: function abort() {
|
|
this.cleanup();
|
|
}
|
|
}]);
|
|
return Request;
|
|
}(Emitter);
|
|
Request.requestsCount = 0;
|
|
Request.requests = {};
|
|
/**
|
|
* Aborts pending requests when unloading the window. This is needed to prevent
|
|
* memory leaks (e.g. when using IE) and to ensure that no spurious error is
|
|
* emitted.
|
|
*/
|
|
if (typeof document !== "undefined") {
|
|
// @ts-ignore
|
|
if (typeof attachEvent === "function") {
|
|
// @ts-ignore
|
|
attachEvent("onunload", unloadHandler);
|
|
} else if (typeof addEventListener === "function") {
|
|
var terminationEvent = "onpagehide" in globalThisShim ? "pagehide" : "unload";
|
|
addEventListener(terminationEvent, unloadHandler, false);
|
|
}
|
|
}
|
|
function unloadHandler() {
|
|
for (var i in Request.requests) {
|
|
if (Request.requests.hasOwnProperty(i)) {
|
|
Request.requests[i].abort();
|
|
}
|
|
}
|
|
}
|
|
|
|
var nextTick = function () {
|
|
var isPromiseAvailable = typeof Promise === "function" && typeof Promise.resolve === "function";
|
|
if (isPromiseAvailable) {
|
|
return function (cb) {
|
|
return Promise.resolve().then(cb);
|
|
};
|
|
} else {
|
|
return function (cb, setTimeoutFn) {
|
|
return setTimeoutFn(cb, 0);
|
|
};
|
|
}
|
|
}();
|
|
var WebSocket = globalThisShim.WebSocket || globalThisShim.MozWebSocket;
|
|
var usingBrowserWebSocket = true;
|
|
var defaultBinaryType = "arraybuffer";
|
|
|
|
// detect ReactNative environment
|
|
var isReactNative = typeof navigator !== "undefined" && typeof navigator.product === "string" && navigator.product.toLowerCase() === "reactnative";
|
|
var WS = /*#__PURE__*/function (_Transport) {
|
|
_inherits(WS, _Transport);
|
|
var _super = _createSuper(WS);
|
|
/**
|
|
* WebSocket transport constructor.
|
|
*
|
|
* @param {Object} opts - connection options
|
|
* @protected
|
|
*/
|
|
function WS(opts) {
|
|
var _this;
|
|
_classCallCheck(this, WS);
|
|
_this = _super.call(this, opts);
|
|
_this.supportsBinary = !opts.forceBase64;
|
|
return _this;
|
|
}
|
|
_createClass(WS, [{
|
|
key: "name",
|
|
get: function get() {
|
|
return "websocket";
|
|
}
|
|
}, {
|
|
key: "doOpen",
|
|
value: function doOpen() {
|
|
if (!this.check()) {
|
|
// let probe timeout
|
|
return;
|
|
}
|
|
var uri = this.uri();
|
|
var protocols = this.opts.protocols;
|
|
// React Native only supports the 'headers' option, and will print a warning if anything else is passed
|
|
var opts = isReactNative ? {} : pick(this.opts, "agent", "perMessageDeflate", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "localAddress", "protocolVersion", "origin", "maxPayload", "family", "checkServerIdentity");
|
|
if (this.opts.extraHeaders) {
|
|
opts.headers = this.opts.extraHeaders;
|
|
}
|
|
try {
|
|
this.ws = usingBrowserWebSocket && !isReactNative ? protocols ? new WebSocket(uri, protocols) : new WebSocket(uri) : new WebSocket(uri, protocols, opts);
|
|
} catch (err) {
|
|
return this.emitReserved("error", err);
|
|
}
|
|
this.ws.binaryType = this.socket.binaryType;
|
|
this.addEventListeners();
|
|
}
|
|
/**
|
|
* Adds event listeners to the socket
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "addEventListeners",
|
|
value: function addEventListeners() {
|
|
var _this2 = this;
|
|
this.ws.onopen = function () {
|
|
if (_this2.opts.autoUnref) {
|
|
_this2.ws._socket.unref();
|
|
}
|
|
_this2.onOpen();
|
|
};
|
|
this.ws.onclose = function (closeEvent) {
|
|
return _this2.onClose({
|
|
description: "websocket connection closed",
|
|
context: closeEvent
|
|
});
|
|
};
|
|
this.ws.onmessage = function (ev) {
|
|
return _this2.onData(ev.data);
|
|
};
|
|
this.ws.onerror = function (e) {
|
|
return _this2.onError("websocket error", e);
|
|
};
|
|
}
|
|
}, {
|
|
key: "write",
|
|
value: function write(packets) {
|
|
var _this3 = this;
|
|
this.writable = false;
|
|
// encodePacket efficient as it uses WS framing
|
|
// no need for encodePayload
|
|
var _loop = function _loop() {
|
|
var packet = packets[i];
|
|
var lastPacket = i === packets.length - 1;
|
|
encodePacket(packet, _this3.supportsBinary, function (data) {
|
|
// always create a new object (GH-437)
|
|
var opts = {};
|
|
// Sometimes the websocket has already been closed but the browser didn't
|
|
// have a chance of informing us about it yet, in that case send will
|
|
// throw an error
|
|
try {
|
|
if (usingBrowserWebSocket) {
|
|
// TypeError is thrown when passing the second argument on Safari
|
|
_this3.ws.send(data);
|
|
}
|
|
} catch (e) {}
|
|
if (lastPacket) {
|
|
// fake drain
|
|
// defer to next tick to allow Socket to clear writeBuffer
|
|
nextTick(function () {
|
|
_this3.writable = true;
|
|
_this3.emitReserved("drain");
|
|
}, _this3.setTimeoutFn);
|
|
}
|
|
});
|
|
};
|
|
for (var i = 0; i < packets.length; i++) {
|
|
_loop();
|
|
}
|
|
}
|
|
}, {
|
|
key: "doClose",
|
|
value: function doClose() {
|
|
if (typeof this.ws !== "undefined") {
|
|
this.ws.close();
|
|
this.ws = null;
|
|
}
|
|
}
|
|
/**
|
|
* Generates uri for connection.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "uri",
|
|
value: function uri() {
|
|
var schema = this.opts.secure ? "wss" : "ws";
|
|
var query = this.query || {};
|
|
// append timestamp to URI
|
|
if (this.opts.timestampRequests) {
|
|
query[this.opts.timestampParam] = yeast();
|
|
}
|
|
// communicate binary support capabilities
|
|
if (!this.supportsBinary) {
|
|
query.b64 = 1;
|
|
}
|
|
return this.createUri(schema, query);
|
|
}
|
|
/**
|
|
* Feature detection for WebSocket.
|
|
*
|
|
* @return {Boolean} whether this transport is available.
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "check",
|
|
value: function check() {
|
|
return !!WebSocket;
|
|
}
|
|
}]);
|
|
return WS;
|
|
}(Transport);
|
|
|
|
var WT = /*#__PURE__*/function (_Transport) {
|
|
_inherits(WT, _Transport);
|
|
var _super = _createSuper(WT);
|
|
function WT() {
|
|
_classCallCheck(this, WT);
|
|
return _super.apply(this, arguments);
|
|
}
|
|
_createClass(WT, [{
|
|
key: "name",
|
|
get: function get() {
|
|
return "webtransport";
|
|
}
|
|
}, {
|
|
key: "doOpen",
|
|
value: function doOpen() {
|
|
var _this = this;
|
|
// @ts-ignore
|
|
if (typeof WebTransport !== "function") {
|
|
return;
|
|
}
|
|
// @ts-ignore
|
|
this.transport = new WebTransport(this.createUri("https"), this.opts.transportOptions[this.name]);
|
|
this.transport.closed.then(function () {
|
|
_this.onClose();
|
|
})["catch"](function (err) {
|
|
_this.onError("webtransport error", err);
|
|
});
|
|
// note: we could have used async/await, but that would require some additional polyfills
|
|
this.transport.ready.then(function () {
|
|
_this.transport.createBidirectionalStream().then(function (stream) {
|
|
var decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, _this.socket.binaryType);
|
|
var reader = stream.readable.pipeThrough(decoderStream).getReader();
|
|
var encoderStream = createPacketEncoderStream();
|
|
encoderStream.readable.pipeTo(stream.writable);
|
|
_this.writer = encoderStream.writable.getWriter();
|
|
var read = function read() {
|
|
reader.read().then(function (_ref) {
|
|
var done = _ref.done,
|
|
value = _ref.value;
|
|
if (done) {
|
|
return;
|
|
}
|
|
_this.onPacket(value);
|
|
read();
|
|
})["catch"](function (err) {});
|
|
};
|
|
read();
|
|
var packet = {
|
|
type: "open"
|
|
};
|
|
if (_this.query.sid) {
|
|
packet.data = "{\"sid\":\"".concat(_this.query.sid, "\"}");
|
|
}
|
|
_this.writer.write(packet).then(function () {
|
|
return _this.onOpen();
|
|
});
|
|
});
|
|
});
|
|
}
|
|
}, {
|
|
key: "write",
|
|
value: function write(packets) {
|
|
var _this2 = this;
|
|
this.writable = false;
|
|
var _loop = function _loop() {
|
|
var packet = packets[i];
|
|
var lastPacket = i === packets.length - 1;
|
|
_this2.writer.write(packet).then(function () {
|
|
if (lastPacket) {
|
|
nextTick(function () {
|
|
_this2.writable = true;
|
|
_this2.emitReserved("drain");
|
|
}, _this2.setTimeoutFn);
|
|
}
|
|
});
|
|
};
|
|
for (var i = 0; i < packets.length; i++) {
|
|
_loop();
|
|
}
|
|
}
|
|
}, {
|
|
key: "doClose",
|
|
value: function doClose() {
|
|
var _a;
|
|
(_a = this.transport) === null || _a === void 0 ? void 0 : _a.close();
|
|
}
|
|
}]);
|
|
return WT;
|
|
}(Transport);
|
|
|
|
var transports = {
|
|
websocket: WS,
|
|
webtransport: WT,
|
|
polling: Polling
|
|
};
|
|
|
|
// imported from https://github.com/galkn/parseuri
|
|
/**
|
|
* Parses a URI
|
|
*
|
|
* Note: we could also have used the built-in URL object, but it isn't supported on all platforms.
|
|
*
|
|
* See:
|
|
* - https://developer.mozilla.org/en-US/docs/Web/API/URL
|
|
* - https://caniuse.com/url
|
|
* - https://www.rfc-editor.org/rfc/rfc3986#appendix-B
|
|
*
|
|
* History of the parse() method:
|
|
* - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c
|
|
* - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3
|
|
* - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242
|
|
*
|
|
* @author Steven Levithan <stevenlevithan.com> (MIT license)
|
|
* @api private
|
|
*/
|
|
var re = /^(?:(?![^:@\/?#]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@\/?#]*)(?::([^:@\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
|
|
var parts = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'];
|
|
function parse(str) {
|
|
var src = str,
|
|
b = str.indexOf('['),
|
|
e = str.indexOf(']');
|
|
if (b != -1 && e != -1) {
|
|
str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
|
|
}
|
|
var m = re.exec(str || ''),
|
|
uri = {},
|
|
i = 14;
|
|
while (i--) {
|
|
uri[parts[i]] = m[i] || '';
|
|
}
|
|
if (b != -1 && e != -1) {
|
|
uri.source = src;
|
|
uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
|
|
uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
|
|
uri.ipv6uri = true;
|
|
}
|
|
uri.pathNames = pathNames(uri, uri['path']);
|
|
uri.queryKey = queryKey(uri, uri['query']);
|
|
return uri;
|
|
}
|
|
function pathNames(obj, path) {
|
|
var regx = /\/{2,9}/g,
|
|
names = path.replace(regx, "/").split("/");
|
|
if (path.slice(0, 1) == '/' || path.length === 0) {
|
|
names.splice(0, 1);
|
|
}
|
|
if (path.slice(-1) == '/') {
|
|
names.splice(names.length - 1, 1);
|
|
}
|
|
return names;
|
|
}
|
|
function queryKey(uri, query) {
|
|
var data = {};
|
|
query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {
|
|
if ($1) {
|
|
data[$1] = $2;
|
|
}
|
|
});
|
|
return data;
|
|
}
|
|
|
|
var Socket$1 = /*#__PURE__*/function (_Emitter) {
|
|
_inherits(Socket, _Emitter);
|
|
var _super = _createSuper(Socket);
|
|
/**
|
|
* Socket constructor.
|
|
*
|
|
* @param {String|Object} uri - uri or options
|
|
* @param {Object} opts - options
|
|
*/
|
|
function Socket(uri) {
|
|
var _this;
|
|
var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
|
|
_classCallCheck(this, Socket);
|
|
_this = _super.call(this);
|
|
_this.binaryType = defaultBinaryType;
|
|
_this.writeBuffer = [];
|
|
if (uri && "object" === _typeof(uri)) {
|
|
opts = uri;
|
|
uri = null;
|
|
}
|
|
if (uri) {
|
|
uri = parse(uri);
|
|
opts.hostname = uri.host;
|
|
opts.secure = uri.protocol === "https" || uri.protocol === "wss";
|
|
opts.port = uri.port;
|
|
if (uri.query) opts.query = uri.query;
|
|
} else if (opts.host) {
|
|
opts.hostname = parse(opts.host).host;
|
|
}
|
|
installTimerFunctions(_assertThisInitialized(_this), opts);
|
|
_this.secure = null != opts.secure ? opts.secure : typeof location !== "undefined" && "https:" === location.protocol;
|
|
if (opts.hostname && !opts.port) {
|
|
// if no port is specified manually, use the protocol default
|
|
opts.port = _this.secure ? "443" : "80";
|
|
}
|
|
_this.hostname = opts.hostname || (typeof location !== "undefined" ? location.hostname : "localhost");
|
|
_this.port = opts.port || (typeof location !== "undefined" && location.port ? location.port : _this.secure ? "443" : "80");
|
|
_this.transports = opts.transports || ["polling", "websocket", "webtransport"];
|
|
_this.writeBuffer = [];
|
|
_this.prevBufferLen = 0;
|
|
_this.opts = _extends({
|
|
path: "/engine.io",
|
|
agent: false,
|
|
withCredentials: false,
|
|
upgrade: true,
|
|
timestampParam: "t",
|
|
rememberUpgrade: false,
|
|
addTrailingSlash: true,
|
|
rejectUnauthorized: true,
|
|
perMessageDeflate: {
|
|
threshold: 1024
|
|
},
|
|
transportOptions: {},
|
|
closeOnBeforeunload: false
|
|
}, opts);
|
|
_this.opts.path = _this.opts.path.replace(/\/$/, "") + (_this.opts.addTrailingSlash ? "/" : "");
|
|
if (typeof _this.opts.query === "string") {
|
|
_this.opts.query = decode(_this.opts.query);
|
|
}
|
|
// set on handshake
|
|
_this.id = null;
|
|
_this.upgrades = null;
|
|
_this.pingInterval = null;
|
|
_this.pingTimeout = null;
|
|
// set on heartbeat
|
|
_this.pingTimeoutTimer = null;
|
|
if (typeof addEventListener === "function") {
|
|
if (_this.opts.closeOnBeforeunload) {
|
|
// Firefox closes the connection when the "beforeunload" event is emitted but not Chrome. This event listener
|
|
// ensures every browser behaves the same (no "disconnect" event at the Socket.IO level when the page is
|
|
// closed/reloaded)
|
|
_this.beforeunloadEventListener = function () {
|
|
if (_this.transport) {
|
|
// silently close the transport
|
|
_this.transport.removeAllListeners();
|
|
_this.transport.close();
|
|
}
|
|
};
|
|
addEventListener("beforeunload", _this.beforeunloadEventListener, false);
|
|
}
|
|
if (_this.hostname !== "localhost") {
|
|
_this.offlineEventListener = function () {
|
|
_this.onClose("transport close", {
|
|
description: "network connection lost"
|
|
});
|
|
};
|
|
addEventListener("offline", _this.offlineEventListener, false);
|
|
}
|
|
}
|
|
_this.open();
|
|
return _this;
|
|
}
|
|
/**
|
|
* Creates transport of the given type.
|
|
*
|
|
* @param {String} name - transport name
|
|
* @return {Transport}
|
|
* @private
|
|
*/
|
|
_createClass(Socket, [{
|
|
key: "createTransport",
|
|
value: function createTransport(name) {
|
|
var query = _extends({}, this.opts.query);
|
|
// append engine.io protocol identifier
|
|
query.EIO = protocol$1;
|
|
// transport name
|
|
query.transport = name;
|
|
// session id if we already have one
|
|
if (this.id) query.sid = this.id;
|
|
var opts = _extends({}, this.opts, {
|
|
query: query,
|
|
socket: this,
|
|
hostname: this.hostname,
|
|
secure: this.secure,
|
|
port: this.port
|
|
}, this.opts.transportOptions[name]);
|
|
return new transports[name](opts);
|
|
}
|
|
/**
|
|
* Initializes transport to use and starts probe.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "open",
|
|
value: function open() {
|
|
var _this2 = this;
|
|
var transport;
|
|
if (this.opts.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf("websocket") !== -1) {
|
|
transport = "websocket";
|
|
} else if (0 === this.transports.length) {
|
|
// Emit error on next tick so it can be listened to
|
|
this.setTimeoutFn(function () {
|
|
_this2.emitReserved("error", "No transports available");
|
|
}, 0);
|
|
return;
|
|
} else {
|
|
transport = this.transports[0];
|
|
}
|
|
this.readyState = "opening";
|
|
// Retry with the next transport if the transport is disabled (jsonp: false)
|
|
try {
|
|
transport = this.createTransport(transport);
|
|
} catch (e) {
|
|
this.transports.shift();
|
|
this.open();
|
|
return;
|
|
}
|
|
transport.open();
|
|
this.setTransport(transport);
|
|
}
|
|
/**
|
|
* Sets the current transport. Disables the existing one (if any).
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "setTransport",
|
|
value: function setTransport(transport) {
|
|
var _this3 = this;
|
|
if (this.transport) {
|
|
this.transport.removeAllListeners();
|
|
}
|
|
// set up transport
|
|
this.transport = transport;
|
|
// set up transport listeners
|
|
transport.on("drain", this.onDrain.bind(this)).on("packet", this.onPacket.bind(this)).on("error", this.onError.bind(this)).on("close", function (reason) {
|
|
return _this3.onClose("transport close", reason);
|
|
});
|
|
}
|
|
/**
|
|
* Probes a transport.
|
|
*
|
|
* @param {String} name - transport name
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "probe",
|
|
value: function probe(name) {
|
|
var _this4 = this;
|
|
var transport = this.createTransport(name);
|
|
var failed = false;
|
|
Socket.priorWebsocketSuccess = false;
|
|
var onTransportOpen = function onTransportOpen() {
|
|
if (failed) return;
|
|
transport.send([{
|
|
type: "ping",
|
|
data: "probe"
|
|
}]);
|
|
transport.once("packet", function (msg) {
|
|
if (failed) return;
|
|
if ("pong" === msg.type && "probe" === msg.data) {
|
|
_this4.upgrading = true;
|
|
_this4.emitReserved("upgrading", transport);
|
|
if (!transport) return;
|
|
Socket.priorWebsocketSuccess = "websocket" === transport.name;
|
|
_this4.transport.pause(function () {
|
|
if (failed) return;
|
|
if ("closed" === _this4.readyState) return;
|
|
cleanup();
|
|
_this4.setTransport(transport);
|
|
transport.send([{
|
|
type: "upgrade"
|
|
}]);
|
|
_this4.emitReserved("upgrade", transport);
|
|
transport = null;
|
|
_this4.upgrading = false;
|
|
_this4.flush();
|
|
});
|
|
} else {
|
|
var err = new Error("probe error");
|
|
// @ts-ignore
|
|
err.transport = transport.name;
|
|
_this4.emitReserved("upgradeError", err);
|
|
}
|
|
});
|
|
};
|
|
function freezeTransport() {
|
|
if (failed) return;
|
|
// Any callback called by transport should be ignored since now
|
|
failed = true;
|
|
cleanup();
|
|
transport.close();
|
|
transport = null;
|
|
}
|
|
// Handle any error that happens while probing
|
|
var onerror = function onerror(err) {
|
|
var error = new Error("probe error: " + err);
|
|
// @ts-ignore
|
|
error.transport = transport.name;
|
|
freezeTransport();
|
|
_this4.emitReserved("upgradeError", error);
|
|
};
|
|
function onTransportClose() {
|
|
onerror("transport closed");
|
|
}
|
|
// When the socket is closed while we're probing
|
|
function onclose() {
|
|
onerror("socket closed");
|
|
}
|
|
// When the socket is upgraded while we're probing
|
|
function onupgrade(to) {
|
|
if (transport && to.name !== transport.name) {
|
|
freezeTransport();
|
|
}
|
|
}
|
|
// Remove all listeners on the transport and on self
|
|
var cleanup = function cleanup() {
|
|
transport.removeListener("open", onTransportOpen);
|
|
transport.removeListener("error", onerror);
|
|
transport.removeListener("close", onTransportClose);
|
|
_this4.off("close", onclose);
|
|
_this4.off("upgrading", onupgrade);
|
|
};
|
|
transport.once("open", onTransportOpen);
|
|
transport.once("error", onerror);
|
|
transport.once("close", onTransportClose);
|
|
this.once("close", onclose);
|
|
this.once("upgrading", onupgrade);
|
|
if (this.upgrades.indexOf("webtransport") !== -1 && name !== "webtransport") {
|
|
// favor WebTransport
|
|
this.setTimeoutFn(function () {
|
|
if (!failed) {
|
|
transport.open();
|
|
}
|
|
}, 200);
|
|
} else {
|
|
transport.open();
|
|
}
|
|
}
|
|
/**
|
|
* Called when connection is deemed open.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onOpen",
|
|
value: function onOpen() {
|
|
this.readyState = "open";
|
|
Socket.priorWebsocketSuccess = "websocket" === this.transport.name;
|
|
this.emitReserved("open");
|
|
this.flush();
|
|
// we check for `readyState` in case an `open`
|
|
// listener already closed the socket
|
|
if ("open" === this.readyState && this.opts.upgrade) {
|
|
var i = 0;
|
|
var l = this.upgrades.length;
|
|
for (; i < l; i++) {
|
|
this.probe(this.upgrades[i]);
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Handles a packet.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onPacket",
|
|
value: function onPacket(packet) {
|
|
if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
|
|
this.emitReserved("packet", packet);
|
|
// Socket is live - any packet counts
|
|
this.emitReserved("heartbeat");
|
|
this.resetPingTimeout();
|
|
switch (packet.type) {
|
|
case "open":
|
|
this.onHandshake(JSON.parse(packet.data));
|
|
break;
|
|
case "ping":
|
|
this.sendPacket("pong");
|
|
this.emitReserved("ping");
|
|
this.emitReserved("pong");
|
|
break;
|
|
case "error":
|
|
var err = new Error("server error");
|
|
// @ts-ignore
|
|
err.code = packet.data;
|
|
this.onError(err);
|
|
break;
|
|
case "message":
|
|
this.emitReserved("data", packet.data);
|
|
this.emitReserved("message", packet.data);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Called upon handshake completion.
|
|
*
|
|
* @param {Object} data - handshake obj
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onHandshake",
|
|
value: function onHandshake(data) {
|
|
this.emitReserved("handshake", data);
|
|
this.id = data.sid;
|
|
this.transport.query.sid = data.sid;
|
|
this.upgrades = this.filterUpgrades(data.upgrades);
|
|
this.pingInterval = data.pingInterval;
|
|
this.pingTimeout = data.pingTimeout;
|
|
this.maxPayload = data.maxPayload;
|
|
this.onOpen();
|
|
// In case open handler closes socket
|
|
if ("closed" === this.readyState) return;
|
|
this.resetPingTimeout();
|
|
}
|
|
/**
|
|
* Sets and resets ping timeout timer based on server pings.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "resetPingTimeout",
|
|
value: function resetPingTimeout() {
|
|
var _this5 = this;
|
|
this.clearTimeoutFn(this.pingTimeoutTimer);
|
|
this.pingTimeoutTimer = this.setTimeoutFn(function () {
|
|
_this5.onClose("ping timeout");
|
|
}, this.pingInterval + this.pingTimeout);
|
|
if (this.opts.autoUnref) {
|
|
this.pingTimeoutTimer.unref();
|
|
}
|
|
}
|
|
/**
|
|
* Called on `drain` event
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onDrain",
|
|
value: function onDrain() {
|
|
this.writeBuffer.splice(0, this.prevBufferLen);
|
|
// setting prevBufferLen = 0 is very important
|
|
// for example, when upgrading, upgrade packet is sent over,
|
|
// and a nonzero prevBufferLen could cause problems on `drain`
|
|
this.prevBufferLen = 0;
|
|
if (0 === this.writeBuffer.length) {
|
|
this.emitReserved("drain");
|
|
} else {
|
|
this.flush();
|
|
}
|
|
}
|
|
/**
|
|
* Flush write buffers.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "flush",
|
|
value: function flush() {
|
|
if ("closed" !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length) {
|
|
var packets = this.getWritablePackets();
|
|
this.transport.send(packets);
|
|
// keep track of current length of writeBuffer
|
|
// splice writeBuffer and callbackBuffer on `drain`
|
|
this.prevBufferLen = packets.length;
|
|
this.emitReserved("flush");
|
|
}
|
|
}
|
|
/**
|
|
* Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP
|
|
* long-polling)
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "getWritablePackets",
|
|
value: function getWritablePackets() {
|
|
var shouldCheckPayloadSize = this.maxPayload && this.transport.name === "polling" && this.writeBuffer.length > 1;
|
|
if (!shouldCheckPayloadSize) {
|
|
return this.writeBuffer;
|
|
}
|
|
var payloadSize = 1; // first packet type
|
|
for (var i = 0; i < this.writeBuffer.length; i++) {
|
|
var data = this.writeBuffer[i].data;
|
|
if (data) {
|
|
payloadSize += byteLength(data);
|
|
}
|
|
if (i > 0 && payloadSize > this.maxPayload) {
|
|
return this.writeBuffer.slice(0, i);
|
|
}
|
|
payloadSize += 2; // separator + packet type
|
|
}
|
|
|
|
return this.writeBuffer;
|
|
}
|
|
/**
|
|
* Sends a message.
|
|
*
|
|
* @param {String} msg - message.
|
|
* @param {Object} options.
|
|
* @param {Function} callback function.
|
|
* @return {Socket} for chaining.
|
|
*/
|
|
}, {
|
|
key: "write",
|
|
value: function write(msg, options, fn) {
|
|
this.sendPacket("message", msg, options, fn);
|
|
return this;
|
|
}
|
|
}, {
|
|
key: "send",
|
|
value: function send(msg, options, fn) {
|
|
this.sendPacket("message", msg, options, fn);
|
|
return this;
|
|
}
|
|
/**
|
|
* Sends a packet.
|
|
*
|
|
* @param {String} type: packet type.
|
|
* @param {String} data.
|
|
* @param {Object} options.
|
|
* @param {Function} fn - callback function.
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "sendPacket",
|
|
value: function sendPacket(type, data, options, fn) {
|
|
if ("function" === typeof data) {
|
|
fn = data;
|
|
data = undefined;
|
|
}
|
|
if ("function" === typeof options) {
|
|
fn = options;
|
|
options = null;
|
|
}
|
|
if ("closing" === this.readyState || "closed" === this.readyState) {
|
|
return;
|
|
}
|
|
options = options || {};
|
|
options.compress = false !== options.compress;
|
|
var packet = {
|
|
type: type,
|
|
data: data,
|
|
options: options
|
|
};
|
|
this.emitReserved("packetCreate", packet);
|
|
this.writeBuffer.push(packet);
|
|
if (fn) this.once("flush", fn);
|
|
this.flush();
|
|
}
|
|
/**
|
|
* Closes the connection.
|
|
*/
|
|
}, {
|
|
key: "close",
|
|
value: function close() {
|
|
var _this6 = this;
|
|
var close = function close() {
|
|
_this6.onClose("forced close");
|
|
_this6.transport.close();
|
|
};
|
|
var cleanupAndClose = function cleanupAndClose() {
|
|
_this6.off("upgrade", cleanupAndClose);
|
|
_this6.off("upgradeError", cleanupAndClose);
|
|
close();
|
|
};
|
|
var waitForUpgrade = function waitForUpgrade() {
|
|
// wait for upgrade to finish since we can't send packets while pausing a transport
|
|
_this6.once("upgrade", cleanupAndClose);
|
|
_this6.once("upgradeError", cleanupAndClose);
|
|
};
|
|
if ("opening" === this.readyState || "open" === this.readyState) {
|
|
this.readyState = "closing";
|
|
if (this.writeBuffer.length) {
|
|
this.once("drain", function () {
|
|
if (_this6.upgrading) {
|
|
waitForUpgrade();
|
|
} else {
|
|
close();
|
|
}
|
|
});
|
|
} else if (this.upgrading) {
|
|
waitForUpgrade();
|
|
} else {
|
|
close();
|
|
}
|
|
}
|
|
return this;
|
|
}
|
|
/**
|
|
* Called upon transport error
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onError",
|
|
value: function onError(err) {
|
|
Socket.priorWebsocketSuccess = false;
|
|
this.emitReserved("error", err);
|
|
this.onClose("transport error", err);
|
|
}
|
|
/**
|
|
* Called upon transport close.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onClose",
|
|
value: function onClose(reason, description) {
|
|
if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
|
|
// clear timers
|
|
this.clearTimeoutFn(this.pingTimeoutTimer);
|
|
// stop event from firing again for transport
|
|
this.transport.removeAllListeners("close");
|
|
// ensure transport won't stay open
|
|
this.transport.close();
|
|
// ignore further transport communication
|
|
this.transport.removeAllListeners();
|
|
if (typeof removeEventListener === "function") {
|
|
removeEventListener("beforeunload", this.beforeunloadEventListener, false);
|
|
removeEventListener("offline", this.offlineEventListener, false);
|
|
}
|
|
// set ready state
|
|
this.readyState = "closed";
|
|
// clear session id
|
|
this.id = null;
|
|
// emit close event
|
|
this.emitReserved("close", reason, description);
|
|
// clean buffers after, so users can still
|
|
// grab the buffers on `close` event
|
|
this.writeBuffer = [];
|
|
this.prevBufferLen = 0;
|
|
}
|
|
}
|
|
/**
|
|
* Filters upgrades, returning only those matching client transports.
|
|
*
|
|
* @param {Array} upgrades - server upgrades
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "filterUpgrades",
|
|
value: function filterUpgrades(upgrades) {
|
|
var filteredUpgrades = [];
|
|
var i = 0;
|
|
var j = upgrades.length;
|
|
for (; i < j; i++) {
|
|
if (~this.transports.indexOf(upgrades[i])) filteredUpgrades.push(upgrades[i]);
|
|
}
|
|
return filteredUpgrades;
|
|
}
|
|
}]);
|
|
return Socket;
|
|
}(Emitter);
|
|
Socket$1.protocol = protocol$1;
|
|
|
|
Socket$1.protocol;
|
|
|
|
/**
|
|
* URL parser.
|
|
*
|
|
* @param uri - url
|
|
* @param path - the request path of the connection
|
|
* @param loc - An object meant to mimic window.location.
|
|
* Defaults to window.location.
|
|
* @public
|
|
*/
|
|
function url(uri) {
|
|
var path = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "";
|
|
var loc = arguments.length > 2 ? arguments[2] : undefined;
|
|
var obj = uri;
|
|
// default to window.location
|
|
loc = loc || typeof location !== "undefined" && location;
|
|
if (null == uri) uri = loc.protocol + "//" + loc.host;
|
|
// relative path support
|
|
if (typeof uri === "string") {
|
|
if ("/" === uri.charAt(0)) {
|
|
if ("/" === uri.charAt(1)) {
|
|
uri = loc.protocol + uri;
|
|
} else {
|
|
uri = loc.host + uri;
|
|
}
|
|
}
|
|
if (!/^(https?|wss?):\/\//.test(uri)) {
|
|
if ("undefined" !== typeof loc) {
|
|
uri = loc.protocol + "//" + uri;
|
|
} else {
|
|
uri = "https://" + uri;
|
|
}
|
|
}
|
|
// parse
|
|
obj = parse(uri);
|
|
}
|
|
// make sure we treat `localhost:80` and `localhost` equally
|
|
if (!obj.port) {
|
|
if (/^(http|ws)$/.test(obj.protocol)) {
|
|
obj.port = "80";
|
|
} else if (/^(http|ws)s$/.test(obj.protocol)) {
|
|
obj.port = "443";
|
|
}
|
|
}
|
|
obj.path = obj.path || "/";
|
|
var ipv6 = obj.host.indexOf(":") !== -1;
|
|
var host = ipv6 ? "[" + obj.host + "]" : obj.host;
|
|
// define unique id
|
|
obj.id = obj.protocol + "://" + host + ":" + obj.port + path;
|
|
// define href
|
|
obj.href = obj.protocol + "://" + host + (loc && loc.port === obj.port ? "" : ":" + obj.port);
|
|
return obj;
|
|
}
|
|
|
|
var withNativeArrayBuffer = typeof ArrayBuffer === "function";
|
|
var isView = function isView(obj) {
|
|
return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj.buffer instanceof ArrayBuffer;
|
|
};
|
|
var toString = Object.prototype.toString;
|
|
var withNativeBlob = typeof Blob === "function" || typeof Blob !== "undefined" && toString.call(Blob) === "[object BlobConstructor]";
|
|
var withNativeFile = typeof File === "function" || typeof File !== "undefined" && toString.call(File) === "[object FileConstructor]";
|
|
/**
|
|
* Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.
|
|
*
|
|
* @private
|
|
*/
|
|
function isBinary(obj) {
|
|
return withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)) || withNativeBlob && obj instanceof Blob || withNativeFile && obj instanceof File;
|
|
}
|
|
function hasBinary(obj, toJSON) {
|
|
if (!obj || _typeof(obj) !== "object") {
|
|
return false;
|
|
}
|
|
if (Array.isArray(obj)) {
|
|
for (var i = 0, l = obj.length; i < l; i++) {
|
|
if (hasBinary(obj[i])) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
if (isBinary(obj)) {
|
|
return true;
|
|
}
|
|
if (obj.toJSON && typeof obj.toJSON === "function" && arguments.length === 1) {
|
|
return hasBinary(obj.toJSON(), true);
|
|
}
|
|
for (var key in obj) {
|
|
if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.
|
|
*
|
|
* @param {Object} packet - socket.io event packet
|
|
* @return {Object} with deconstructed packet and list of buffers
|
|
* @public
|
|
*/
|
|
function deconstructPacket(packet) {
|
|
var buffers = [];
|
|
var packetData = packet.data;
|
|
var pack = packet;
|
|
pack.data = _deconstructPacket(packetData, buffers);
|
|
pack.attachments = buffers.length; // number of binary 'attachments'
|
|
return {
|
|
packet: pack,
|
|
buffers: buffers
|
|
};
|
|
}
|
|
function _deconstructPacket(data, buffers) {
|
|
if (!data) return data;
|
|
if (isBinary(data)) {
|
|
var placeholder = {
|
|
_placeholder: true,
|
|
num: buffers.length
|
|
};
|
|
buffers.push(data);
|
|
return placeholder;
|
|
} else if (Array.isArray(data)) {
|
|
var newData = new Array(data.length);
|
|
for (var i = 0; i < data.length; i++) {
|
|
newData[i] = _deconstructPacket(data[i], buffers);
|
|
}
|
|
return newData;
|
|
} else if (_typeof(data) === "object" && !(data instanceof Date)) {
|
|
var _newData = {};
|
|
for (var key in data) {
|
|
if (Object.prototype.hasOwnProperty.call(data, key)) {
|
|
_newData[key] = _deconstructPacket(data[key], buffers);
|
|
}
|
|
}
|
|
return _newData;
|
|
}
|
|
return data;
|
|
}
|
|
/**
|
|
* Reconstructs a binary packet from its placeholder packet and buffers
|
|
*
|
|
* @param {Object} packet - event packet with placeholders
|
|
* @param {Array} buffers - binary buffers to put in placeholder positions
|
|
* @return {Object} reconstructed packet
|
|
* @public
|
|
*/
|
|
function reconstructPacket(packet, buffers) {
|
|
packet.data = _reconstructPacket(packet.data, buffers);
|
|
delete packet.attachments; // no longer useful
|
|
return packet;
|
|
}
|
|
function _reconstructPacket(data, buffers) {
|
|
if (!data) return data;
|
|
if (data && data._placeholder === true) {
|
|
var isIndexValid = typeof data.num === "number" && data.num >= 0 && data.num < buffers.length;
|
|
if (isIndexValid) {
|
|
return buffers[data.num]; // appropriate buffer (should be natural order anyway)
|
|
} else {
|
|
throw new Error("illegal attachments");
|
|
}
|
|
} else if (Array.isArray(data)) {
|
|
for (var i = 0; i < data.length; i++) {
|
|
data[i] = _reconstructPacket(data[i], buffers);
|
|
}
|
|
} else if (_typeof(data) === "object") {
|
|
for (var key in data) {
|
|
if (Object.prototype.hasOwnProperty.call(data, key)) {
|
|
data[key] = _reconstructPacket(data[key], buffers);
|
|
}
|
|
}
|
|
}
|
|
return data;
|
|
}
|
|
|
|
/**
|
|
* These strings must not be used as event names, as they have a special meaning.
|
|
*/
|
|
var RESERVED_EVENTS$1 = ["connect", "connect_error", "disconnect", "disconnecting", "newListener", "removeListener" // used by the Node.js EventEmitter
|
|
];
|
|
/**
|
|
* Protocol version.
|
|
*
|
|
* @public
|
|
*/
|
|
var protocol = 5;
|
|
var PacketType;
|
|
(function (PacketType) {
|
|
PacketType[PacketType["CONNECT"] = 0] = "CONNECT";
|
|
PacketType[PacketType["DISCONNECT"] = 1] = "DISCONNECT";
|
|
PacketType[PacketType["EVENT"] = 2] = "EVENT";
|
|
PacketType[PacketType["ACK"] = 3] = "ACK";
|
|
PacketType[PacketType["CONNECT_ERROR"] = 4] = "CONNECT_ERROR";
|
|
PacketType[PacketType["BINARY_EVENT"] = 5] = "BINARY_EVENT";
|
|
PacketType[PacketType["BINARY_ACK"] = 6] = "BINARY_ACK";
|
|
})(PacketType || (PacketType = {}));
|
|
/**
|
|
* A socket.io Encoder instance
|
|
*/
|
|
var Encoder = /*#__PURE__*/function () {
|
|
/**
|
|
* Encoder constructor
|
|
*
|
|
* @param {function} replacer - custom replacer to pass down to JSON.parse
|
|
*/
|
|
function Encoder(replacer) {
|
|
_classCallCheck(this, Encoder);
|
|
this.replacer = replacer;
|
|
}
|
|
/**
|
|
* Encode a packet as a single string if non-binary, or as a
|
|
* buffer sequence, depending on packet type.
|
|
*
|
|
* @param {Object} obj - packet object
|
|
*/
|
|
_createClass(Encoder, [{
|
|
key: "encode",
|
|
value: function encode(obj) {
|
|
if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {
|
|
if (hasBinary(obj)) {
|
|
return this.encodeAsBinary({
|
|
type: obj.type === PacketType.EVENT ? PacketType.BINARY_EVENT : PacketType.BINARY_ACK,
|
|
nsp: obj.nsp,
|
|
data: obj.data,
|
|
id: obj.id
|
|
});
|
|
}
|
|
}
|
|
return [this.encodeAsString(obj)];
|
|
}
|
|
/**
|
|
* Encode packet as string.
|
|
*/
|
|
}, {
|
|
key: "encodeAsString",
|
|
value: function encodeAsString(obj) {
|
|
// first is type
|
|
var str = "" + obj.type;
|
|
// attachments if we have them
|
|
if (obj.type === PacketType.BINARY_EVENT || obj.type === PacketType.BINARY_ACK) {
|
|
str += obj.attachments + "-";
|
|
}
|
|
// if we have a namespace other than `/`
|
|
// we append it followed by a comma `,`
|
|
if (obj.nsp && "/" !== obj.nsp) {
|
|
str += obj.nsp + ",";
|
|
}
|
|
// immediately followed by the id
|
|
if (null != obj.id) {
|
|
str += obj.id;
|
|
}
|
|
// json data
|
|
if (null != obj.data) {
|
|
str += JSON.stringify(obj.data, this.replacer);
|
|
}
|
|
return str;
|
|
}
|
|
/**
|
|
* Encode packet as 'buffer sequence' by removing blobs, and
|
|
* deconstructing packet into object with placeholders and
|
|
* a list of buffers.
|
|
*/
|
|
}, {
|
|
key: "encodeAsBinary",
|
|
value: function encodeAsBinary(obj) {
|
|
var deconstruction = deconstructPacket(obj);
|
|
var pack = this.encodeAsString(deconstruction.packet);
|
|
var buffers = deconstruction.buffers;
|
|
buffers.unshift(pack); // add packet info to beginning of data list
|
|
return buffers; // write all the buffers
|
|
}
|
|
}]);
|
|
return Encoder;
|
|
}();
|
|
// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript
|
|
function isObject(value) {
|
|
return Object.prototype.toString.call(value) === "[object Object]";
|
|
}
|
|
/**
|
|
* A socket.io Decoder instance
|
|
*
|
|
* @return {Object} decoder
|
|
*/
|
|
var Decoder = /*#__PURE__*/function (_Emitter) {
|
|
_inherits(Decoder, _Emitter);
|
|
var _super = _createSuper(Decoder);
|
|
/**
|
|
* Decoder constructor
|
|
*
|
|
* @param {function} reviver - custom reviver to pass down to JSON.stringify
|
|
*/
|
|
function Decoder(reviver) {
|
|
var _this;
|
|
_classCallCheck(this, Decoder);
|
|
_this = _super.call(this);
|
|
_this.reviver = reviver;
|
|
return _this;
|
|
}
|
|
/**
|
|
* Decodes an encoded packet string into packet JSON.
|
|
*
|
|
* @param {String} obj - encoded packet
|
|
*/
|
|
_createClass(Decoder, [{
|
|
key: "add",
|
|
value: function add(obj) {
|
|
var packet;
|
|
if (typeof obj === "string") {
|
|
if (this.reconstructor) {
|
|
throw new Error("got plaintext data when reconstructing a packet");
|
|
}
|
|
packet = this.decodeString(obj);
|
|
var isBinaryEvent = packet.type === PacketType.BINARY_EVENT;
|
|
if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {
|
|
packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;
|
|
// binary packet's json
|
|
this.reconstructor = new BinaryReconstructor(packet);
|
|
// no attachments, labeled binary but no binary data to follow
|
|
if (packet.attachments === 0) {
|
|
_get(_getPrototypeOf(Decoder.prototype), "emitReserved", this).call(this, "decoded", packet);
|
|
}
|
|
} else {
|
|
// non-binary full packet
|
|
_get(_getPrototypeOf(Decoder.prototype), "emitReserved", this).call(this, "decoded", packet);
|
|
}
|
|
} else if (isBinary(obj) || obj.base64) {
|
|
// raw binary data
|
|
if (!this.reconstructor) {
|
|
throw new Error("got binary data when not reconstructing a packet");
|
|
} else {
|
|
packet = this.reconstructor.takeBinaryData(obj);
|
|
if (packet) {
|
|
// received final buffer
|
|
this.reconstructor = null;
|
|
_get(_getPrototypeOf(Decoder.prototype), "emitReserved", this).call(this, "decoded", packet);
|
|
}
|
|
}
|
|
} else {
|
|
throw new Error("Unknown type: " + obj);
|
|
}
|
|
}
|
|
/**
|
|
* Decode a packet String (JSON data)
|
|
*
|
|
* @param {String} str
|
|
* @return {Object} packet
|
|
*/
|
|
}, {
|
|
key: "decodeString",
|
|
value: function decodeString(str) {
|
|
var i = 0;
|
|
// look up type
|
|
var p = {
|
|
type: Number(str.charAt(0))
|
|
};
|
|
if (PacketType[p.type] === undefined) {
|
|
throw new Error("unknown packet type " + p.type);
|
|
}
|
|
// look up attachments if type binary
|
|
if (p.type === PacketType.BINARY_EVENT || p.type === PacketType.BINARY_ACK) {
|
|
var start = i + 1;
|
|
while (str.charAt(++i) !== "-" && i != str.length) {}
|
|
var buf = str.substring(start, i);
|
|
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)) {
|
|
var _start = i + 1;
|
|
while (++i) {
|
|
var c = str.charAt(i);
|
|
if ("," === c) break;
|
|
if (i === str.length) break;
|
|
}
|
|
p.nsp = str.substring(_start, i);
|
|
} else {
|
|
p.nsp = "/";
|
|
}
|
|
// look up id
|
|
var next = str.charAt(i + 1);
|
|
if ("" !== next && Number(next) == next) {
|
|
var _start2 = i + 1;
|
|
while (++i) {
|
|
var _c = str.charAt(i);
|
|
if (null == _c || Number(_c) != _c) {
|
|
--i;
|
|
break;
|
|
}
|
|
if (i === str.length) break;
|
|
}
|
|
p.id = Number(str.substring(_start2, i + 1));
|
|
}
|
|
// look up json data
|
|
if (str.charAt(++i)) {
|
|
var payload = this.tryParse(str.substr(i));
|
|
if (Decoder.isPayloadValid(p.type, payload)) {
|
|
p.data = payload;
|
|
} else {
|
|
throw new Error("invalid payload");
|
|
}
|
|
}
|
|
return p;
|
|
}
|
|
}, {
|
|
key: "tryParse",
|
|
value: function tryParse(str) {
|
|
try {
|
|
return JSON.parse(str, this.reviver);
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
}, {
|
|
key: "destroy",
|
|
value:
|
|
/**
|
|
* Deallocates a parser's resources
|
|
*/
|
|
function destroy() {
|
|
if (this.reconstructor) {
|
|
this.reconstructor.finishedReconstruction();
|
|
this.reconstructor = null;
|
|
}
|
|
}
|
|
}], [{
|
|
key: "isPayloadValid",
|
|
value: function isPayloadValid(type, payload) {
|
|
switch (type) {
|
|
case PacketType.CONNECT:
|
|
return isObject(payload);
|
|
case PacketType.DISCONNECT:
|
|
return payload === undefined;
|
|
case PacketType.CONNECT_ERROR:
|
|
return typeof payload === "string" || isObject(payload);
|
|
case PacketType.EVENT:
|
|
case PacketType.BINARY_EVENT:
|
|
return Array.isArray(payload) && (typeof payload[0] === "number" || typeof payload[0] === "string" && RESERVED_EVENTS$1.indexOf(payload[0]) === -1);
|
|
case PacketType.ACK:
|
|
case PacketType.BINARY_ACK:
|
|
return Array.isArray(payload);
|
|
}
|
|
}
|
|
}]);
|
|
return Decoder;
|
|
}(Emitter);
|
|
/**
|
|
* A manager of a binary event's 'buffer sequence'. Should
|
|
* be constructed whenever a packet of type BINARY_EVENT is
|
|
* decoded.
|
|
*
|
|
* @param {Object} packet
|
|
* @return {BinaryReconstructor} initialized reconstructor
|
|
*/
|
|
var BinaryReconstructor = /*#__PURE__*/function () {
|
|
function BinaryReconstructor(packet) {
|
|
_classCallCheck(this, BinaryReconstructor);
|
|
this.packet = packet;
|
|
this.buffers = [];
|
|
this.reconPack = packet;
|
|
}
|
|
/**
|
|
* Method to be called when binary data received from connection
|
|
* after a BINARY_EVENT packet.
|
|
*
|
|
* @param {Buffer | ArrayBuffer} binData - the raw binary data received
|
|
* @return {null | Object} returns null if more binary data is expected or
|
|
* a reconstructed packet object if all buffers have been received.
|
|
*/
|
|
_createClass(BinaryReconstructor, [{
|
|
key: "takeBinaryData",
|
|
value: function takeBinaryData(binData) {
|
|
this.buffers.push(binData);
|
|
if (this.buffers.length === this.reconPack.attachments) {
|
|
// done with buffer list
|
|
var packet = reconstructPacket(this.reconPack, this.buffers);
|
|
this.finishedReconstruction();
|
|
return packet;
|
|
}
|
|
return null;
|
|
}
|
|
/**
|
|
* Cleans up binary packet reconstruction variables.
|
|
*/
|
|
}, {
|
|
key: "finishedReconstruction",
|
|
value: function finishedReconstruction() {
|
|
this.reconPack = null;
|
|
this.buffers = [];
|
|
}
|
|
}]);
|
|
return BinaryReconstructor;
|
|
}();
|
|
|
|
var parser = /*#__PURE__*/Object.freeze({
|
|
__proto__: null,
|
|
protocol: protocol,
|
|
get PacketType () { return PacketType; },
|
|
Encoder: Encoder,
|
|
Decoder: Decoder
|
|
});
|
|
|
|
function on(obj, ev, fn) {
|
|
obj.on(ev, fn);
|
|
return function subDestroy() {
|
|
obj.off(ev, fn);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Internal events.
|
|
* These events can't be emitted by the user.
|
|
*/
|
|
var RESERVED_EVENTS = Object.freeze({
|
|
connect: 1,
|
|
connect_error: 1,
|
|
disconnect: 1,
|
|
disconnecting: 1,
|
|
// EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener
|
|
newListener: 1,
|
|
removeListener: 1
|
|
});
|
|
/**
|
|
* A Socket is the fundamental class for interacting with the server.
|
|
*
|
|
* A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.
|
|
*
|
|
* @example
|
|
* const socket = io();
|
|
*
|
|
* socket.on("connect", () => {
|
|
* console.log("connected");
|
|
* });
|
|
*
|
|
* // send an event to the server
|
|
* socket.emit("foo", "bar");
|
|
*
|
|
* socket.on("foobar", () => {
|
|
* // an event was received from the server
|
|
* });
|
|
*
|
|
* // upon disconnection
|
|
* socket.on("disconnect", (reason) => {
|
|
* console.log(`disconnected due to ${reason}`);
|
|
* });
|
|
*/
|
|
var Socket = /*#__PURE__*/function (_Emitter) {
|
|
_inherits(Socket, _Emitter);
|
|
var _super = _createSuper(Socket);
|
|
/**
|
|
* `Socket` constructor.
|
|
*/
|
|
function Socket(io, nsp, opts) {
|
|
var _this;
|
|
_classCallCheck(this, Socket);
|
|
_this = _super.call(this);
|
|
/**
|
|
* Whether the socket is currently connected to the server.
|
|
*
|
|
* @example
|
|
* const socket = io();
|
|
*
|
|
* socket.on("connect", () => {
|
|
* console.log(socket.connected); // true
|
|
* });
|
|
*
|
|
* socket.on("disconnect", () => {
|
|
* console.log(socket.connected); // false
|
|
* });
|
|
*/
|
|
_this.connected = false;
|
|
/**
|
|
* Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will
|
|
* be transmitted by the server.
|
|
*/
|
|
_this.recovered = false;
|
|
/**
|
|
* Buffer for packets received before the CONNECT packet
|
|
*/
|
|
_this.receiveBuffer = [];
|
|
/**
|
|
* Buffer for packets that will be sent once the socket is connected
|
|
*/
|
|
_this.sendBuffer = [];
|
|
/**
|
|
* The queue of packets to be sent with retry in case of failure.
|
|
*
|
|
* Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.
|
|
* @private
|
|
*/
|
|
_this._queue = [];
|
|
/**
|
|
* A sequence to generate the ID of the {@link QueuedPacket}.
|
|
* @private
|
|
*/
|
|
_this._queueSeq = 0;
|
|
_this.ids = 0;
|
|
_this.acks = {};
|
|
_this.flags = {};
|
|
_this.io = io;
|
|
_this.nsp = nsp;
|
|
if (opts && opts.auth) {
|
|
_this.auth = opts.auth;
|
|
}
|
|
_this._opts = _extends({}, opts);
|
|
if (_this.io._autoConnect) _this.open();
|
|
return _this;
|
|
}
|
|
/**
|
|
* Whether the socket is currently disconnected
|
|
*
|
|
* @example
|
|
* const socket = io();
|
|
*
|
|
* socket.on("connect", () => {
|
|
* console.log(socket.disconnected); // false
|
|
* });
|
|
*
|
|
* socket.on("disconnect", () => {
|
|
* console.log(socket.disconnected); // true
|
|
* });
|
|
*/
|
|
_createClass(Socket, [{
|
|
key: "disconnected",
|
|
get: function get() {
|
|
return !this.connected;
|
|
}
|
|
/**
|
|
* Subscribe to open, close and packet events
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "subEvents",
|
|
value: function subEvents() {
|
|
if (this.subs) return;
|
|
var io = this.io;
|
|
this.subs = [on(io, "open", this.onopen.bind(this)), on(io, "packet", this.onpacket.bind(this)), on(io, "error", this.onerror.bind(this)), on(io, "close", this.onclose.bind(this))];
|
|
}
|
|
/**
|
|
* Whether the Socket will try to reconnect when its Manager connects or reconnects.
|
|
*
|
|
* @example
|
|
* const socket = io();
|
|
*
|
|
* console.log(socket.active); // true
|
|
*
|
|
* socket.on("disconnect", (reason) => {
|
|
* if (reason === "io server disconnect") {
|
|
* // the disconnection was initiated by the server, you need to manually reconnect
|
|
* console.log(socket.active); // false
|
|
* }
|
|
* // else the socket will automatically try to reconnect
|
|
* console.log(socket.active); // true
|
|
* });
|
|
*/
|
|
}, {
|
|
key: "active",
|
|
get: function get() {
|
|
return !!this.subs;
|
|
}
|
|
/**
|
|
* "Opens" the socket.
|
|
*
|
|
* @example
|
|
* const socket = io({
|
|
* autoConnect: false
|
|
* });
|
|
*
|
|
* socket.connect();
|
|
*/
|
|
}, {
|
|
key: "connect",
|
|
value: function connect() {
|
|
if (this.connected) return this;
|
|
this.subEvents();
|
|
if (!this.io["_reconnecting"]) this.io.open(); // ensure open
|
|
if ("open" === this.io._readyState) this.onopen();
|
|
return this;
|
|
}
|
|
/**
|
|
* Alias for {@link connect()}.
|
|
*/
|
|
}, {
|
|
key: "open",
|
|
value: function open() {
|
|
return this.connect();
|
|
}
|
|
/**
|
|
* Sends a `message` event.
|
|
*
|
|
* This method mimics the WebSocket.send() method.
|
|
*
|
|
* @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
|
|
*
|
|
* @example
|
|
* socket.send("hello");
|
|
*
|
|
* // this is equivalent to
|
|
* socket.emit("message", "hello");
|
|
*
|
|
* @return self
|
|
*/
|
|
}, {
|
|
key: "send",
|
|
value: function send() {
|
|
for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
|
|
args[_key] = arguments[_key];
|
|
}
|
|
args.unshift("message");
|
|
this.emit.apply(this, args);
|
|
return this;
|
|
}
|
|
/**
|
|
* Override `emit`.
|
|
* If the event is in `events`, it's emitted normally.
|
|
*
|
|
* @example
|
|
* socket.emit("hello", "world");
|
|
*
|
|
* // all serializable datastructures are supported (no need to call JSON.stringify)
|
|
* socket.emit("hello", 1, "2", { 3: ["4"], 5: Uint8Array.from([6]) });
|
|
*
|
|
* // with an acknowledgement from the server
|
|
* socket.emit("hello", "world", (val) => {
|
|
* // ...
|
|
* });
|
|
*
|
|
* @return self
|
|
*/
|
|
}, {
|
|
key: "emit",
|
|
value: function emit(ev) {
|
|
if (RESERVED_EVENTS.hasOwnProperty(ev)) {
|
|
throw new Error('"' + ev.toString() + '" is a reserved event name');
|
|
}
|
|
for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
|
|
args[_key2 - 1] = arguments[_key2];
|
|
}
|
|
args.unshift(ev);
|
|
if (this._opts.retries && !this.flags.fromQueue && !this.flags["volatile"]) {
|
|
this._addToQueue(args);
|
|
return this;
|
|
}
|
|
var packet = {
|
|
type: PacketType.EVENT,
|
|
data: args
|
|
};
|
|
packet.options = {};
|
|
packet.options.compress = this.flags.compress !== false;
|
|
// event ack callback
|
|
if ("function" === typeof args[args.length - 1]) {
|
|
var id = this.ids++;
|
|
var ack = args.pop();
|
|
this._registerAckCallback(id, ack);
|
|
packet.id = id;
|
|
}
|
|
var isTransportWritable = this.io.engine && this.io.engine.transport && this.io.engine.transport.writable;
|
|
var discardPacket = this.flags["volatile"] && (!isTransportWritable || !this.connected);
|
|
if (discardPacket) ; else if (this.connected) {
|
|
this.notifyOutgoingListeners(packet);
|
|
this.packet(packet);
|
|
} else {
|
|
this.sendBuffer.push(packet);
|
|
}
|
|
this.flags = {};
|
|
return this;
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "_registerAckCallback",
|
|
value: function _registerAckCallback(id, ack) {
|
|
var _this2 = this;
|
|
var _a;
|
|
var timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;
|
|
if (timeout === undefined) {
|
|
this.acks[id] = ack;
|
|
return;
|
|
}
|
|
// @ts-ignore
|
|
var timer = this.io.setTimeoutFn(function () {
|
|
delete _this2.acks[id];
|
|
for (var i = 0; i < _this2.sendBuffer.length; i++) {
|
|
if (_this2.sendBuffer[i].id === id) {
|
|
_this2.sendBuffer.splice(i, 1);
|
|
}
|
|
}
|
|
ack.call(_this2, new Error("operation has timed out"));
|
|
}, timeout);
|
|
this.acks[id] = function () {
|
|
// @ts-ignore
|
|
_this2.io.clearTimeoutFn(timer);
|
|
for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
|
|
args[_key3] = arguments[_key3];
|
|
}
|
|
ack.apply(_this2, [null].concat(args));
|
|
};
|
|
}
|
|
/**
|
|
* Emits an event and waits for an acknowledgement
|
|
*
|
|
* @example
|
|
* // without timeout
|
|
* const response = await socket.emitWithAck("hello", "world");
|
|
*
|
|
* // with a specific timeout
|
|
* try {
|
|
* const response = await socket.timeout(1000).emitWithAck("hello", "world");
|
|
* } catch (err) {
|
|
* // the server did not acknowledge the event in the given delay
|
|
* }
|
|
*
|
|
* @return a Promise that will be fulfilled when the server acknowledges the event
|
|
*/
|
|
}, {
|
|
key: "emitWithAck",
|
|
value: function emitWithAck(ev) {
|
|
var _this3 = this;
|
|
for (var _len4 = arguments.length, args = new Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {
|
|
args[_key4 - 1] = arguments[_key4];
|
|
}
|
|
// the timeout flag is optional
|
|
var withErr = this.flags.timeout !== undefined || this._opts.ackTimeout !== undefined;
|
|
return new Promise(function (resolve, reject) {
|
|
args.push(function (arg1, arg2) {
|
|
if (withErr) {
|
|
return arg1 ? reject(arg1) : resolve(arg2);
|
|
} else {
|
|
return resolve(arg1);
|
|
}
|
|
});
|
|
_this3.emit.apply(_this3, [ev].concat(args));
|
|
});
|
|
}
|
|
/**
|
|
* Add the packet to the queue.
|
|
* @param args
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "_addToQueue",
|
|
value: function _addToQueue(args) {
|
|
var _this4 = this;
|
|
var ack;
|
|
if (typeof args[args.length - 1] === "function") {
|
|
ack = args.pop();
|
|
}
|
|
var packet = {
|
|
id: this._queueSeq++,
|
|
tryCount: 0,
|
|
pending: false,
|
|
args: args,
|
|
flags: _extends({
|
|
fromQueue: true
|
|
}, this.flags)
|
|
};
|
|
args.push(function (err) {
|
|
if (packet !== _this4._queue[0]) {
|
|
// the packet has already been acknowledged
|
|
return;
|
|
}
|
|
var hasError = err !== null;
|
|
if (hasError) {
|
|
if (packet.tryCount > _this4._opts.retries) {
|
|
_this4._queue.shift();
|
|
if (ack) {
|
|
ack(err);
|
|
}
|
|
}
|
|
} else {
|
|
_this4._queue.shift();
|
|
if (ack) {
|
|
for (var _len5 = arguments.length, responseArgs = new Array(_len5 > 1 ? _len5 - 1 : 0), _key5 = 1; _key5 < _len5; _key5++) {
|
|
responseArgs[_key5 - 1] = arguments[_key5];
|
|
}
|
|
ack.apply(void 0, [null].concat(responseArgs));
|
|
}
|
|
}
|
|
packet.pending = false;
|
|
return _this4._drainQueue();
|
|
});
|
|
this._queue.push(packet);
|
|
this._drainQueue();
|
|
}
|
|
/**
|
|
* Send the first packet of the queue, and wait for an acknowledgement from the server.
|
|
* @param force - whether to resend a packet that has not been acknowledged yet
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "_drainQueue",
|
|
value: function _drainQueue() {
|
|
var force = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
|
|
if (!this.connected || this._queue.length === 0) {
|
|
return;
|
|
}
|
|
var packet = this._queue[0];
|
|
if (packet.pending && !force) {
|
|
return;
|
|
}
|
|
packet.pending = true;
|
|
packet.tryCount++;
|
|
this.flags = packet.flags;
|
|
this.emit.apply(this, packet.args);
|
|
}
|
|
/**
|
|
* Sends a packet.
|
|
*
|
|
* @param packet
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "packet",
|
|
value: function packet(_packet) {
|
|
_packet.nsp = this.nsp;
|
|
this.io._packet(_packet);
|
|
}
|
|
/**
|
|
* Called upon engine `open`.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onopen",
|
|
value: function onopen() {
|
|
var _this5 = this;
|
|
if (typeof this.auth == "function") {
|
|
this.auth(function (data) {
|
|
_this5._sendConnectPacket(data);
|
|
});
|
|
} else {
|
|
this._sendConnectPacket(this.auth);
|
|
}
|
|
}
|
|
/**
|
|
* Sends a CONNECT packet to initiate the Socket.IO session.
|
|
*
|
|
* @param data
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "_sendConnectPacket",
|
|
value: function _sendConnectPacket(data) {
|
|
this.packet({
|
|
type: PacketType.CONNECT,
|
|
data: this._pid ? _extends({
|
|
pid: this._pid,
|
|
offset: this._lastOffset
|
|
}, data) : data
|
|
});
|
|
}
|
|
/**
|
|
* Called upon engine or manager `error`.
|
|
*
|
|
* @param err
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onerror",
|
|
value: function onerror(err) {
|
|
if (!this.connected) {
|
|
this.emitReserved("connect_error", err);
|
|
}
|
|
}
|
|
/**
|
|
* Called upon engine `close`.
|
|
*
|
|
* @param reason
|
|
* @param description
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onclose",
|
|
value: function onclose(reason, description) {
|
|
this.connected = false;
|
|
delete this.id;
|
|
this.emitReserved("disconnect", reason, description);
|
|
}
|
|
/**
|
|
* Called with socket packet.
|
|
*
|
|
* @param packet
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onpacket",
|
|
value: function onpacket(packet) {
|
|
var sameNamespace = packet.nsp === this.nsp;
|
|
if (!sameNamespace) return;
|
|
switch (packet.type) {
|
|
case PacketType.CONNECT:
|
|
if (packet.data && packet.data.sid) {
|
|
this.onconnect(packet.data.sid, packet.data.pid);
|
|
} else {
|
|
this.emitReserved("connect_error", new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));
|
|
}
|
|
break;
|
|
case PacketType.EVENT:
|
|
case PacketType.BINARY_EVENT:
|
|
this.onevent(packet);
|
|
break;
|
|
case PacketType.ACK:
|
|
case PacketType.BINARY_ACK:
|
|
this.onack(packet);
|
|
break;
|
|
case PacketType.DISCONNECT:
|
|
this.ondisconnect();
|
|
break;
|
|
case PacketType.CONNECT_ERROR:
|
|
this.destroy();
|
|
var err = new Error(packet.data.message);
|
|
// @ts-ignore
|
|
err.data = packet.data.data;
|
|
this.emitReserved("connect_error", err);
|
|
break;
|
|
}
|
|
}
|
|
/**
|
|
* Called upon a server event.
|
|
*
|
|
* @param packet
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onevent",
|
|
value: function onevent(packet) {
|
|
var args = packet.data || [];
|
|
if (null != packet.id) {
|
|
args.push(this.ack(packet.id));
|
|
}
|
|
if (this.connected) {
|
|
this.emitEvent(args);
|
|
} else {
|
|
this.receiveBuffer.push(Object.freeze(args));
|
|
}
|
|
}
|
|
}, {
|
|
key: "emitEvent",
|
|
value: function emitEvent(args) {
|
|
if (this._anyListeners && this._anyListeners.length) {
|
|
var listeners = this._anyListeners.slice();
|
|
var _iterator = _createForOfIteratorHelper(listeners),
|
|
_step;
|
|
try {
|
|
for (_iterator.s(); !(_step = _iterator.n()).done;) {
|
|
var listener = _step.value;
|
|
listener.apply(this, args);
|
|
}
|
|
} catch (err) {
|
|
_iterator.e(err);
|
|
} finally {
|
|
_iterator.f();
|
|
}
|
|
}
|
|
_get(_getPrototypeOf(Socket.prototype), "emit", this).apply(this, args);
|
|
if (this._pid && args.length && typeof args[args.length - 1] === "string") {
|
|
this._lastOffset = args[args.length - 1];
|
|
}
|
|
}
|
|
/**
|
|
* Produces an ack callback to emit with an event.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "ack",
|
|
value: function ack(id) {
|
|
var self = this;
|
|
var sent = false;
|
|
return function () {
|
|
// prevent double callbacks
|
|
if (sent) return;
|
|
sent = true;
|
|
for (var _len6 = arguments.length, args = new Array(_len6), _key6 = 0; _key6 < _len6; _key6++) {
|
|
args[_key6] = arguments[_key6];
|
|
}
|
|
self.packet({
|
|
type: PacketType.ACK,
|
|
id: id,
|
|
data: args
|
|
});
|
|
};
|
|
}
|
|
/**
|
|
* Called upon a server acknowlegement.
|
|
*
|
|
* @param packet
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onack",
|
|
value: function onack(packet) {
|
|
var ack = this.acks[packet.id];
|
|
if ("function" === typeof ack) {
|
|
ack.apply(this, packet.data);
|
|
delete this.acks[packet.id];
|
|
}
|
|
}
|
|
/**
|
|
* Called upon server connect.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onconnect",
|
|
value: function onconnect(id, pid) {
|
|
this.id = id;
|
|
this.recovered = pid && this._pid === pid;
|
|
this._pid = pid; // defined only if connection state recovery is enabled
|
|
this.connected = true;
|
|
this.emitBuffered();
|
|
this.emitReserved("connect");
|
|
this._drainQueue(true);
|
|
}
|
|
/**
|
|
* Emit buffered events (received and emitted).
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "emitBuffered",
|
|
value: function emitBuffered() {
|
|
var _this6 = this;
|
|
this.receiveBuffer.forEach(function (args) {
|
|
return _this6.emitEvent(args);
|
|
});
|
|
this.receiveBuffer = [];
|
|
this.sendBuffer.forEach(function (packet) {
|
|
_this6.notifyOutgoingListeners(packet);
|
|
_this6.packet(packet);
|
|
});
|
|
this.sendBuffer = [];
|
|
}
|
|
/**
|
|
* Called upon server disconnect.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "ondisconnect",
|
|
value: function ondisconnect() {
|
|
this.destroy();
|
|
this.onclose("io server disconnect");
|
|
}
|
|
/**
|
|
* Called upon forced client/server side disconnections,
|
|
* this method ensures the manager stops tracking us and
|
|
* that reconnections don't get triggered for this.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "destroy",
|
|
value: function destroy() {
|
|
if (this.subs) {
|
|
// clean subscriptions to avoid reconnections
|
|
this.subs.forEach(function (subDestroy) {
|
|
return subDestroy();
|
|
});
|
|
this.subs = undefined;
|
|
}
|
|
this.io["_destroy"](this);
|
|
}
|
|
/**
|
|
* Disconnects the socket manually. In that case, the socket will not try to reconnect.
|
|
*
|
|
* If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.
|
|
*
|
|
* @example
|
|
* const socket = io();
|
|
*
|
|
* socket.on("disconnect", (reason) => {
|
|
* // console.log(reason); prints "io client disconnect"
|
|
* });
|
|
*
|
|
* socket.disconnect();
|
|
*
|
|
* @return self
|
|
*/
|
|
}, {
|
|
key: "disconnect",
|
|
value: function disconnect() {
|
|
if (this.connected) {
|
|
this.packet({
|
|
type: PacketType.DISCONNECT
|
|
});
|
|
}
|
|
// remove socket from pool
|
|
this.destroy();
|
|
if (this.connected) {
|
|
// fire events
|
|
this.onclose("io client disconnect");
|
|
}
|
|
return this;
|
|
}
|
|
/**
|
|
* Alias for {@link disconnect()}.
|
|
*
|
|
* @return self
|
|
*/
|
|
}, {
|
|
key: "close",
|
|
value: function close() {
|
|
return this.disconnect();
|
|
}
|
|
/**
|
|
* Sets the compress flag.
|
|
*
|
|
* @example
|
|
* socket.compress(false).emit("hello");
|
|
*
|
|
* @param compress - if `true`, compresses the sending data
|
|
* @return self
|
|
*/
|
|
}, {
|
|
key: "compress",
|
|
value: function compress(_compress) {
|
|
this.flags.compress = _compress;
|
|
return this;
|
|
}
|
|
/**
|
|
* Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not
|
|
* ready to send messages.
|
|
*
|
|
* @example
|
|
* socket.volatile.emit("hello"); // the server may or may not receive it
|
|
*
|
|
* @returns self
|
|
*/
|
|
}, {
|
|
key: "volatile",
|
|
get: function get() {
|
|
this.flags["volatile"] = true;
|
|
return this;
|
|
}
|
|
/**
|
|
* 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 server:
|
|
*
|
|
* @example
|
|
* socket.timeout(5000).emit("my-event", (err) => {
|
|
* if (err) {
|
|
* // the server did not acknowledge the event in the given delay
|
|
* }
|
|
* });
|
|
*
|
|
* @returns self
|
|
*/
|
|
}, {
|
|
key: "timeout",
|
|
value: function timeout(_timeout) {
|
|
this.flags.timeout = _timeout;
|
|
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.
|
|
*
|
|
* @example
|
|
* socket.onAny((event, ...args) => {
|
|
* console.log(`got ${event}`);
|
|
* });
|
|
*
|
|
* @param listener
|
|
*/
|
|
}, {
|
|
key: "onAny",
|
|
value: function 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.
|
|
*
|
|
* @example
|
|
* socket.prependAny((event, ...args) => {
|
|
* console.log(`got event ${event}`);
|
|
* });
|
|
*
|
|
* @param listener
|
|
*/
|
|
}, {
|
|
key: "prependAny",
|
|
value: function prependAny(listener) {
|
|
this._anyListeners = this._anyListeners || [];
|
|
this._anyListeners.unshift(listener);
|
|
return this;
|
|
}
|
|
/**
|
|
* Removes the listener that will be fired when any event is emitted.
|
|
*
|
|
* @example
|
|
* const catchAllListener = (event, ...args) => {
|
|
* console.log(`got event ${event}`);
|
|
* }
|
|
*
|
|
* socket.onAny(catchAllListener);
|
|
*
|
|
* // remove a specific listener
|
|
* socket.offAny(catchAllListener);
|
|
*
|
|
* // or remove all listeners
|
|
* socket.offAny();
|
|
*
|
|
* @param listener
|
|
*/
|
|
}, {
|
|
key: "offAny",
|
|
value: function offAny(listener) {
|
|
if (!this._anyListeners) {
|
|
return this;
|
|
}
|
|
if (listener) {
|
|
var listeners = this._anyListeners;
|
|
for (var 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.
|
|
*/
|
|
}, {
|
|
key: "listenersAny",
|
|
value: function listenersAny() {
|
|
return this._anyListeners || [];
|
|
}
|
|
/**
|
|
* Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
|
|
* callback.
|
|
*
|
|
* Note: acknowledgements sent to the server are not included.
|
|
*
|
|
* @example
|
|
* socket.onAnyOutgoing((event, ...args) => {
|
|
* console.log(`sent event ${event}`);
|
|
* });
|
|
*
|
|
* @param listener
|
|
*/
|
|
}, {
|
|
key: "onAnyOutgoing",
|
|
value: function onAnyOutgoing(listener) {
|
|
this._anyOutgoingListeners = this._anyOutgoingListeners || [];
|
|
this._anyOutgoingListeners.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.
|
|
*
|
|
* Note: acknowledgements sent to the server are not included.
|
|
*
|
|
* @example
|
|
* socket.prependAnyOutgoing((event, ...args) => {
|
|
* console.log(`sent event ${event}`);
|
|
* });
|
|
*
|
|
* @param listener
|
|
*/
|
|
}, {
|
|
key: "prependAnyOutgoing",
|
|
value: function prependAnyOutgoing(listener) {
|
|
this._anyOutgoingListeners = this._anyOutgoingListeners || [];
|
|
this._anyOutgoingListeners.unshift(listener);
|
|
return this;
|
|
}
|
|
/**
|
|
* Removes the listener that will be fired when any event is emitted.
|
|
*
|
|
* @example
|
|
* const catchAllListener = (event, ...args) => {
|
|
* console.log(`sent event ${event}`);
|
|
* }
|
|
*
|
|
* socket.onAnyOutgoing(catchAllListener);
|
|
*
|
|
* // remove a specific listener
|
|
* socket.offAnyOutgoing(catchAllListener);
|
|
*
|
|
* // or remove all listeners
|
|
* socket.offAnyOutgoing();
|
|
*
|
|
* @param [listener] - the catch-all listener (optional)
|
|
*/
|
|
}, {
|
|
key: "offAnyOutgoing",
|
|
value: function offAnyOutgoing(listener) {
|
|
if (!this._anyOutgoingListeners) {
|
|
return this;
|
|
}
|
|
if (listener) {
|
|
var listeners = this._anyOutgoingListeners;
|
|
for (var i = 0; i < listeners.length; i++) {
|
|
if (listener === listeners[i]) {
|
|
listeners.splice(i, 1);
|
|
return this;
|
|
}
|
|
}
|
|
} else {
|
|
this._anyOutgoingListeners = [];
|
|
}
|
|
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.
|
|
*/
|
|
}, {
|
|
key: "listenersAnyOutgoing",
|
|
value: function listenersAnyOutgoing() {
|
|
return this._anyOutgoingListeners || [];
|
|
}
|
|
/**
|
|
* Notify the listeners for each packet sent
|
|
*
|
|
* @param packet
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "notifyOutgoingListeners",
|
|
value: function notifyOutgoingListeners(packet) {
|
|
if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {
|
|
var listeners = this._anyOutgoingListeners.slice();
|
|
var _iterator2 = _createForOfIteratorHelper(listeners),
|
|
_step2;
|
|
try {
|
|
for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
|
|
var listener = _step2.value;
|
|
listener.apply(this, packet.data);
|
|
}
|
|
} catch (err) {
|
|
_iterator2.e(err);
|
|
} finally {
|
|
_iterator2.f();
|
|
}
|
|
}
|
|
}
|
|
}]);
|
|
return Socket;
|
|
}(Emitter);
|
|
|
|
/**
|
|
* Initialize backoff timer with `opts`.
|
|
*
|
|
* - `min` initial timeout in milliseconds [100]
|
|
* - `max` max timeout [10000]
|
|
* - `jitter` [0]
|
|
* - `factor` [2]
|
|
*
|
|
* @param {Object} opts
|
|
* @api public
|
|
*/
|
|
function Backoff(opts) {
|
|
opts = opts || {};
|
|
this.ms = opts.min || 100;
|
|
this.max = opts.max || 10000;
|
|
this.factor = opts.factor || 2;
|
|
this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
|
|
this.attempts = 0;
|
|
}
|
|
/**
|
|
* Return the backoff duration.
|
|
*
|
|
* @return {Number}
|
|
* @api public
|
|
*/
|
|
Backoff.prototype.duration = function () {
|
|
var ms = this.ms * Math.pow(this.factor, this.attempts++);
|
|
if (this.jitter) {
|
|
var rand = Math.random();
|
|
var deviation = Math.floor(rand * this.jitter * ms);
|
|
ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;
|
|
}
|
|
return Math.min(ms, this.max) | 0;
|
|
};
|
|
/**
|
|
* Reset the number of attempts.
|
|
*
|
|
* @api public
|
|
*/
|
|
Backoff.prototype.reset = function () {
|
|
this.attempts = 0;
|
|
};
|
|
/**
|
|
* Set the minimum duration
|
|
*
|
|
* @api public
|
|
*/
|
|
Backoff.prototype.setMin = function (min) {
|
|
this.ms = min;
|
|
};
|
|
/**
|
|
* Set the maximum duration
|
|
*
|
|
* @api public
|
|
*/
|
|
Backoff.prototype.setMax = function (max) {
|
|
this.max = max;
|
|
};
|
|
/**
|
|
* Set the jitter
|
|
*
|
|
* @api public
|
|
*/
|
|
Backoff.prototype.setJitter = function (jitter) {
|
|
this.jitter = jitter;
|
|
};
|
|
|
|
var Manager = /*#__PURE__*/function (_Emitter) {
|
|
_inherits(Manager, _Emitter);
|
|
var _super = _createSuper(Manager);
|
|
function Manager(uri, opts) {
|
|
var _this;
|
|
_classCallCheck(this, Manager);
|
|
var _a;
|
|
_this = _super.call(this);
|
|
_this.nsps = {};
|
|
_this.subs = [];
|
|
if (uri && "object" === _typeof(uri)) {
|
|
opts = uri;
|
|
uri = undefined;
|
|
}
|
|
opts = opts || {};
|
|
opts.path = opts.path || "/socket.io";
|
|
_this.opts = opts;
|
|
installTimerFunctions(_assertThisInitialized(_this), opts);
|
|
_this.reconnection(opts.reconnection !== false);
|
|
_this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
|
|
_this.reconnectionDelay(opts.reconnectionDelay || 1000);
|
|
_this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
|
|
_this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);
|
|
_this.backoff = new Backoff({
|
|
min: _this.reconnectionDelay(),
|
|
max: _this.reconnectionDelayMax(),
|
|
jitter: _this.randomizationFactor()
|
|
});
|
|
_this.timeout(null == opts.timeout ? 20000 : opts.timeout);
|
|
_this._readyState = "closed";
|
|
_this.uri = uri;
|
|
var _parser = opts.parser || parser;
|
|
_this.encoder = new _parser.Encoder();
|
|
_this.decoder = new _parser.Decoder();
|
|
_this._autoConnect = opts.autoConnect !== false;
|
|
if (_this._autoConnect) _this.open();
|
|
return _this;
|
|
}
|
|
_createClass(Manager, [{
|
|
key: "reconnection",
|
|
value: function reconnection(v) {
|
|
if (!arguments.length) return this._reconnection;
|
|
this._reconnection = !!v;
|
|
return this;
|
|
}
|
|
}, {
|
|
key: "reconnectionAttempts",
|
|
value: function reconnectionAttempts(v) {
|
|
if (v === undefined) return this._reconnectionAttempts;
|
|
this._reconnectionAttempts = v;
|
|
return this;
|
|
}
|
|
}, {
|
|
key: "reconnectionDelay",
|
|
value: function reconnectionDelay(v) {
|
|
var _a;
|
|
if (v === undefined) return this._reconnectionDelay;
|
|
this._reconnectionDelay = v;
|
|
(_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);
|
|
return this;
|
|
}
|
|
}, {
|
|
key: "randomizationFactor",
|
|
value: function randomizationFactor(v) {
|
|
var _a;
|
|
if (v === undefined) return this._randomizationFactor;
|
|
this._randomizationFactor = v;
|
|
(_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);
|
|
return this;
|
|
}
|
|
}, {
|
|
key: "reconnectionDelayMax",
|
|
value: function reconnectionDelayMax(v) {
|
|
var _a;
|
|
if (v === undefined) return this._reconnectionDelayMax;
|
|
this._reconnectionDelayMax = v;
|
|
(_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);
|
|
return this;
|
|
}
|
|
}, {
|
|
key: "timeout",
|
|
value: function timeout(v) {
|
|
if (!arguments.length) return this._timeout;
|
|
this._timeout = v;
|
|
return this;
|
|
}
|
|
/**
|
|
* Starts trying to reconnect if reconnection is enabled and we have not
|
|
* started reconnecting yet
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "maybeReconnectOnOpen",
|
|
value: function maybeReconnectOnOpen() {
|
|
// Only try to reconnect if it's the first time we're connecting
|
|
if (!this._reconnecting && this._reconnection && this.backoff.attempts === 0) {
|
|
// keeps reconnection from firing twice for the same reconnection loop
|
|
this.reconnect();
|
|
}
|
|
}
|
|
/**
|
|
* Sets the current transport `socket`.
|
|
*
|
|
* @param {Function} fn - optional, callback
|
|
* @return self
|
|
* @public
|
|
*/
|
|
}, {
|
|
key: "open",
|
|
value: function open(fn) {
|
|
var _this2 = this;
|
|
if (~this._readyState.indexOf("open")) return this;
|
|
this.engine = new Socket$1(this.uri, this.opts);
|
|
var socket = this.engine;
|
|
var self = this;
|
|
this._readyState = "opening";
|
|
this.skipReconnect = false;
|
|
// emit `open`
|
|
var openSubDestroy = on(socket, "open", function () {
|
|
self.onopen();
|
|
fn && fn();
|
|
});
|
|
var onError = function onError(err) {
|
|
_this2.cleanup();
|
|
_this2._readyState = "closed";
|
|
_this2.emitReserved("error", err);
|
|
if (fn) {
|
|
fn(err);
|
|
} else {
|
|
// Only do this if there is no fn to handle the error
|
|
_this2.maybeReconnectOnOpen();
|
|
}
|
|
};
|
|
// emit `error`
|
|
var errorSub = on(socket, "error", onError);
|
|
if (false !== this._timeout) {
|
|
var timeout = this._timeout;
|
|
// set timer
|
|
var timer = this.setTimeoutFn(function () {
|
|
openSubDestroy();
|
|
onError(new Error("timeout"));
|
|
socket.close();
|
|
}, timeout);
|
|
if (this.opts.autoUnref) {
|
|
timer.unref();
|
|
}
|
|
this.subs.push(function () {
|
|
_this2.clearTimeoutFn(timer);
|
|
});
|
|
}
|
|
this.subs.push(openSubDestroy);
|
|
this.subs.push(errorSub);
|
|
return this;
|
|
}
|
|
/**
|
|
* Alias for open()
|
|
*
|
|
* @return self
|
|
* @public
|
|
*/
|
|
}, {
|
|
key: "connect",
|
|
value: function connect(fn) {
|
|
return this.open(fn);
|
|
}
|
|
/**
|
|
* Called upon transport open.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onopen",
|
|
value: function onopen() {
|
|
// clear old subs
|
|
this.cleanup();
|
|
// mark as open
|
|
this._readyState = "open";
|
|
this.emitReserved("open");
|
|
// add new subs
|
|
var socket = this.engine;
|
|
this.subs.push(on(socket, "ping", this.onping.bind(this)), on(socket, "data", this.ondata.bind(this)), on(socket, "error", this.onerror.bind(this)), on(socket, "close", this.onclose.bind(this)), on(this.decoder, "decoded", this.ondecoded.bind(this)));
|
|
}
|
|
/**
|
|
* Called upon a ping.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onping",
|
|
value: function onping() {
|
|
this.emitReserved("ping");
|
|
}
|
|
/**
|
|
* Called with data.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "ondata",
|
|
value: function ondata(data) {
|
|
try {
|
|
this.decoder.add(data);
|
|
} catch (e) {
|
|
this.onclose("parse error", e);
|
|
}
|
|
}
|
|
/**
|
|
* Called when parser fully decodes a packet.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "ondecoded",
|
|
value: function ondecoded(packet) {
|
|
var _this3 = this;
|
|
// the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a "parse error"
|
|
nextTick(function () {
|
|
_this3.emitReserved("packet", packet);
|
|
}, this.setTimeoutFn);
|
|
}
|
|
/**
|
|
* Called upon socket error.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onerror",
|
|
value: function onerror(err) {
|
|
this.emitReserved("error", err);
|
|
}
|
|
/**
|
|
* Creates a new socket for the given `nsp`.
|
|
*
|
|
* @return {Socket}
|
|
* @public
|
|
*/
|
|
}, {
|
|
key: "socket",
|
|
value: function socket(nsp, opts) {
|
|
var socket = this.nsps[nsp];
|
|
if (!socket) {
|
|
socket = new Socket(this, nsp, opts);
|
|
this.nsps[nsp] = socket;
|
|
} else if (this._autoConnect && !socket.active) {
|
|
socket.connect();
|
|
}
|
|
return socket;
|
|
}
|
|
/**
|
|
* Called upon a socket close.
|
|
*
|
|
* @param socket
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "_destroy",
|
|
value: function _destroy(socket) {
|
|
var nsps = Object.keys(this.nsps);
|
|
for (var _i = 0, _nsps = nsps; _i < _nsps.length; _i++) {
|
|
var nsp = _nsps[_i];
|
|
var _socket = this.nsps[nsp];
|
|
if (_socket.active) {
|
|
return;
|
|
}
|
|
}
|
|
this._close();
|
|
}
|
|
/**
|
|
* Writes a packet.
|
|
*
|
|
* @param packet
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "_packet",
|
|
value: function _packet(packet) {
|
|
var encodedPackets = this.encoder.encode(packet);
|
|
for (var i = 0; i < encodedPackets.length; i++) {
|
|
this.engine.write(encodedPackets[i], packet.options);
|
|
}
|
|
}
|
|
/**
|
|
* Clean up transport subscriptions and packet buffer.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "cleanup",
|
|
value: function cleanup() {
|
|
this.subs.forEach(function (subDestroy) {
|
|
return subDestroy();
|
|
});
|
|
this.subs.length = 0;
|
|
this.decoder.destroy();
|
|
}
|
|
/**
|
|
* Close the current socket.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "_close",
|
|
value: function _close() {
|
|
this.skipReconnect = true;
|
|
this._reconnecting = false;
|
|
this.onclose("forced close");
|
|
if (this.engine) this.engine.close();
|
|
}
|
|
/**
|
|
* Alias for close()
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "disconnect",
|
|
value: function disconnect() {
|
|
return this._close();
|
|
}
|
|
/**
|
|
* Called upon engine close.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onclose",
|
|
value: function onclose(reason, description) {
|
|
this.cleanup();
|
|
this.backoff.reset();
|
|
this._readyState = "closed";
|
|
this.emitReserved("close", reason, description);
|
|
if (this._reconnection && !this.skipReconnect) {
|
|
this.reconnect();
|
|
}
|
|
}
|
|
/**
|
|
* Attempt a reconnection.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "reconnect",
|
|
value: function reconnect() {
|
|
var _this4 = this;
|
|
if (this._reconnecting || this.skipReconnect) return this;
|
|
var self = this;
|
|
if (this.backoff.attempts >= this._reconnectionAttempts) {
|
|
this.backoff.reset();
|
|
this.emitReserved("reconnect_failed");
|
|
this._reconnecting = false;
|
|
} else {
|
|
var delay = this.backoff.duration();
|
|
this._reconnecting = true;
|
|
var timer = this.setTimeoutFn(function () {
|
|
if (self.skipReconnect) return;
|
|
_this4.emitReserved("reconnect_attempt", self.backoff.attempts);
|
|
// check again for the case socket closed in above events
|
|
if (self.skipReconnect) return;
|
|
self.open(function (err) {
|
|
if (err) {
|
|
self._reconnecting = false;
|
|
self.reconnect();
|
|
_this4.emitReserved("reconnect_error", err);
|
|
} else {
|
|
self.onreconnect();
|
|
}
|
|
});
|
|
}, delay);
|
|
if (this.opts.autoUnref) {
|
|
timer.unref();
|
|
}
|
|
this.subs.push(function () {
|
|
_this4.clearTimeoutFn(timer);
|
|
});
|
|
}
|
|
}
|
|
/**
|
|
* Called upon successful reconnect.
|
|
*
|
|
* @private
|
|
*/
|
|
}, {
|
|
key: "onreconnect",
|
|
value: function onreconnect() {
|
|
var attempt = this.backoff.attempts;
|
|
this._reconnecting = false;
|
|
this.backoff.reset();
|
|
this.emitReserved("reconnect", attempt);
|
|
}
|
|
}]);
|
|
return Manager;
|
|
}(Emitter);
|
|
|
|
/**
|
|
* Managers cache.
|
|
*/
|
|
var cache = {};
|
|
function lookup(uri, opts) {
|
|
if (_typeof(uri) === "object") {
|
|
opts = uri;
|
|
uri = undefined;
|
|
}
|
|
opts = opts || {};
|
|
var parsed = url(uri, opts.path || "/socket.io");
|
|
var source = parsed.source;
|
|
var id = parsed.id;
|
|
var path = parsed.path;
|
|
var sameNamespace = cache[id] && path in cache[id]["nsps"];
|
|
var newConnection = opts.forceNew || opts["force new connection"] || false === opts.multiplex || sameNamespace;
|
|
var io;
|
|
if (newConnection) {
|
|
io = new Manager(source, opts);
|
|
} else {
|
|
if (!cache[id]) {
|
|
cache[id] = new Manager(source, opts);
|
|
}
|
|
io = cache[id];
|
|
}
|
|
if (parsed.query && !opts.query) {
|
|
opts.query = parsed.queryKey;
|
|
}
|
|
return io.socket(parsed.path, opts);
|
|
}
|
|
// so that "lookup" can be used both as a function (e.g. `io(...)`) and as a
|
|
// namespace (e.g. `io.connect(...)`), for backward compatibility
|
|
_extends(lookup, {
|
|
Manager: Manager,
|
|
Socket: Socket,
|
|
io: lookup,
|
|
connect: lookup
|
|
});
|
|
|
|
return lookup;
|
|
|
|
}));
|
|
//# sourceMappingURL=socket.io.js.map
|