This is page 5 of 6. Use http://codebase.md/mikechambers/adb-mcp?lines=true&page={x} to view the full context.
# Directory Structure
```
├── .gitattributes
├── .gitignore
├── adb-proxy-socket
│ ├── .gitignore
│ ├── package-lock.json
│ ├── package.json
│ ├── proxy.js
│ └── README.md
├── cep
│ ├── com.mikechambers.ae
│ │ ├── .debug
│ │ ├── commands.js
│ │ ├── CSXS
│ │ │ └── manifest.xml
│ │ ├── index.html
│ │ ├── jsx
│ │ │ └── json-polyfill.jsx
│ │ ├── lib
│ │ │ └── CSInterface.js
│ │ ├── main.js
│ │ └── style.css
│ └── com.mikechambers.ai
│ ├── .debug
│ ├── commands.js
│ ├── CSXS
│ │ └── manifest.xml
│ ├── index.html
│ ├── jsx
│ │ ├── json-polyfill.jsx
│ │ └── utils.jsx
│ ├── lib
│ │ └── CSInterface.js
│ ├── main.js
│ └── style.css
├── dxt
│ ├── build
│ ├── pr
│ │ └── manifest.json
│ └── ps
│ └── manifest.json
├── images
│ └── claud-attach-mcp.png
├── LICENSE.md
├── mcp
│ ├── .gitignore
│ ├── ae-mcp.py
│ ├── ai-mcp.py
│ ├── core.py
│ ├── fonts.py
│ ├── id-mcp.py
│ ├── logger.py
│ ├── pr-mcp.py
│ ├── ps-batch-play.py
│ ├── ps-mcp.py
│ ├── pyproject.toml
│ ├── requirements.txt
│ ├── socket_client.py
│ └── uv.lock
├── package-lock.json
├── README.md
└── uxp
├── id
│ ├── commands
│ │ └── index.js
│ ├── icons
│ │ ├── [email protected]
│ │ ├── [email protected]
│ │ ├── [email protected]
│ │ └── [email protected]
│ ├── index.html
│ ├── LICENSE
│ ├── main.js
│ ├── manifest.json
│ ├── package.json
│ ├── socket.io.js
│ └── style.css
├── pr
│ ├── commands
│ │ ├── consts.js
│ │ ├── core.js
│ │ ├── index.js
│ │ └── utils.js
│ ├── icons
│ │ ├── [email protected]
│ │ ├── [email protected]
│ │ ├── [email protected]
│ │ └── [email protected]
│ ├── index.html
│ ├── LICENSE
│ ├── main.js
│ ├── manifest.json
│ ├── package.json
│ ├── socket.io.js
│ └── style.css
└── ps
├── commands
│ ├── adjustment_layers.js
│ ├── core.js
│ ├── filters.js
│ ├── index.js
│ ├── layer_styles.js
│ ├── layers.js
│ ├── selection.js
│ └── utils.js
├── icons
│ ├── [email protected]
│ ├── [email protected]
│ ├── [email protected]
│ └── [email protected]
├── index.html
├── LICENSE
├── main.js
├── manifest.json
├── package.json
├── socket.io.js
└── style.css
```
# Files
--------------------------------------------------------------------------------
/uxp/pr/socket.io.js:
--------------------------------------------------------------------------------
```javascript
1 | /*!
2 | * Socket.IO v4.8.1
3 | * (c) 2014-2024 Guillermo Rauch
4 | * Released under the MIT License.
5 | */
6 | (function (global, factory) {
7 | typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
8 | typeof define === 'function' && define.amd ? define(factory) :
9 | (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.io = factory());
10 | })(this, (function () { 'use strict';
11 |
12 | function _arrayLikeToArray(r, a) {
13 | (null == a || a > r.length) && (a = r.length);
14 | for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e];
15 | return n;
16 | }
17 | function _arrayWithoutHoles(r) {
18 | if (Array.isArray(r)) return _arrayLikeToArray(r);
19 | }
20 | function _construct(t, e, r) {
21 | if (_isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
22 | var o = [null];
23 | o.push.apply(o, e);
24 | var p = new (t.bind.apply(t, o))();
25 | return r && _setPrototypeOf(p, r.prototype), p;
26 | }
27 | function _defineProperties(e, r) {
28 | for (var t = 0; t < r.length; t++) {
29 | var o = r[t];
30 | o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o);
31 | }
32 | }
33 | function _createClass(e, r, t) {
34 | return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", {
35 | writable: !1
36 | }), e;
37 | }
38 | function _createForOfIteratorHelper(r, e) {
39 | var t = "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"];
40 | if (!t) {
41 | if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && "number" == typeof r.length) {
42 | t && (r = t);
43 | var n = 0,
44 | F = function () {};
45 | return {
46 | s: F,
47 | n: function () {
48 | return n >= r.length ? {
49 | done: !0
50 | } : {
51 | done: !1,
52 | value: r[n++]
53 | };
54 | },
55 | e: function (r) {
56 | throw r;
57 | },
58 | f: F
59 | };
60 | }
61 | throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
62 | }
63 | var o,
64 | a = !0,
65 | u = !1;
66 | return {
67 | s: function () {
68 | t = t.call(r);
69 | },
70 | n: function () {
71 | var r = t.next();
72 | return a = r.done, r;
73 | },
74 | e: function (r) {
75 | u = !0, o = r;
76 | },
77 | f: function () {
78 | try {
79 | a || null == t.return || t.return();
80 | } finally {
81 | if (u) throw o;
82 | }
83 | }
84 | };
85 | }
86 | function _extends() {
87 | return _extends = Object.assign ? Object.assign.bind() : function (n) {
88 | for (var e = 1; e < arguments.length; e++) {
89 | var t = arguments[e];
90 | for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]);
91 | }
92 | return n;
93 | }, _extends.apply(null, arguments);
94 | }
95 | function _getPrototypeOf(t) {
96 | return _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function (t) {
97 | return t.__proto__ || Object.getPrototypeOf(t);
98 | }, _getPrototypeOf(t);
99 | }
100 | function _inheritsLoose(t, o) {
101 | t.prototype = Object.create(o.prototype), t.prototype.constructor = t, _setPrototypeOf(t, o);
102 | }
103 | function _isNativeFunction(t) {
104 | try {
105 | return -1 !== Function.toString.call(t).indexOf("[native code]");
106 | } catch (n) {
107 | return "function" == typeof t;
108 | }
109 | }
110 | function _isNativeReflectConstruct() {
111 | try {
112 | var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
113 | } catch (t) {}
114 | return (_isNativeReflectConstruct = function () {
115 | return !!t;
116 | })();
117 | }
118 | function _iterableToArray(r) {
119 | if ("undefined" != typeof Symbol && null != r[Symbol.iterator] || null != r["@@iterator"]) return Array.from(r);
120 | }
121 | function _nonIterableSpread() {
122 | throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
123 | }
124 | function _setPrototypeOf(t, e) {
125 | return _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function (t, e) {
126 | return t.__proto__ = e, t;
127 | }, _setPrototypeOf(t, e);
128 | }
129 | function _toConsumableArray(r) {
130 | return _arrayWithoutHoles(r) || _iterableToArray(r) || _unsupportedIterableToArray(r) || _nonIterableSpread();
131 | }
132 | function _toPrimitive(t, r) {
133 | if ("object" != typeof t || !t) return t;
134 | var e = t[Symbol.toPrimitive];
135 | if (void 0 !== e) {
136 | var i = e.call(t, r || "default");
137 | if ("object" != typeof i) return i;
138 | throw new TypeError("@@toPrimitive must return a primitive value.");
139 | }
140 | return ("string" === r ? String : Number)(t);
141 | }
142 | function _toPropertyKey(t) {
143 | var i = _toPrimitive(t, "string");
144 | return "symbol" == typeof i ? i : i + "";
145 | }
146 | function _typeof(o) {
147 | "@babel/helpers - typeof";
148 |
149 | return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) {
150 | return typeof o;
151 | } : function (o) {
152 | return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o;
153 | }, _typeof(o);
154 | }
155 | function _unsupportedIterableToArray(r, a) {
156 | if (r) {
157 | if ("string" == typeof r) return _arrayLikeToArray(r, a);
158 | var t = {}.toString.call(r).slice(8, -1);
159 | return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0;
160 | }
161 | }
162 | function _wrapNativeSuper(t) {
163 | var r = "function" == typeof Map ? new Map() : void 0;
164 | return _wrapNativeSuper = function (t) {
165 | if (null === t || !_isNativeFunction(t)) return t;
166 | if ("function" != typeof t) throw new TypeError("Super expression must either be null or a function");
167 | if (void 0 !== r) {
168 | if (r.has(t)) return r.get(t);
169 | r.set(t, Wrapper);
170 | }
171 | function Wrapper() {
172 | return _construct(t, arguments, _getPrototypeOf(this).constructor);
173 | }
174 | return Wrapper.prototype = Object.create(t.prototype, {
175 | constructor: {
176 | value: Wrapper,
177 | enumerable: !1,
178 | writable: !0,
179 | configurable: !0
180 | }
181 | }), _setPrototypeOf(Wrapper, t);
182 | }, _wrapNativeSuper(t);
183 | }
184 |
185 | var PACKET_TYPES = Object.create(null); // no Map = no polyfill
186 | PACKET_TYPES["open"] = "0";
187 | PACKET_TYPES["close"] = "1";
188 | PACKET_TYPES["ping"] = "2";
189 | PACKET_TYPES["pong"] = "3";
190 | PACKET_TYPES["message"] = "4";
191 | PACKET_TYPES["upgrade"] = "5";
192 | PACKET_TYPES["noop"] = "6";
193 | var PACKET_TYPES_REVERSE = Object.create(null);
194 | Object.keys(PACKET_TYPES).forEach(function (key) {
195 | PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;
196 | });
197 | var ERROR_PACKET = {
198 | type: "error",
199 | data: "parser error"
200 | };
201 |
202 | var withNativeBlob$1 = typeof Blob === "function" || typeof Blob !== "undefined" && Object.prototype.toString.call(Blob) === "[object BlobConstructor]";
203 | var withNativeArrayBuffer$2 = typeof ArrayBuffer === "function";
204 | // ArrayBuffer.isView method is not defined in IE10
205 | var isView$1 = function isView(obj) {
206 | return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj && obj.buffer instanceof ArrayBuffer;
207 | };
208 | var encodePacket = function encodePacket(_ref, supportsBinary, callback) {
209 | var type = _ref.type,
210 | data = _ref.data;
211 | if (withNativeBlob$1 && data instanceof Blob) {
212 | if (supportsBinary) {
213 | return callback(data);
214 | } else {
215 | return encodeBlobAsBase64(data, callback);
216 | }
217 | } else if (withNativeArrayBuffer$2 && (data instanceof ArrayBuffer || isView$1(data))) {
218 | if (supportsBinary) {
219 | return callback(data);
220 | } else {
221 | return encodeBlobAsBase64(new Blob([data]), callback);
222 | }
223 | }
224 | // plain string
225 | return callback(PACKET_TYPES[type] + (data || ""));
226 | };
227 | var encodeBlobAsBase64 = function encodeBlobAsBase64(data, callback) {
228 | var fileReader = new FileReader();
229 | fileReader.onload = function () {
230 | var content = fileReader.result.split(",")[1];
231 | callback("b" + (content || ""));
232 | };
233 | return fileReader.readAsDataURL(data);
234 | };
235 | function toArray(data) {
236 | if (data instanceof Uint8Array) {
237 | return data;
238 | } else if (data instanceof ArrayBuffer) {
239 | return new Uint8Array(data);
240 | } else {
241 | return new Uint8Array(data.buffer, data.byteOffset, data.byteLength);
242 | }
243 | }
244 | var TEXT_ENCODER;
245 | function encodePacketToBinary(packet, callback) {
246 | if (withNativeBlob$1 && packet.data instanceof Blob) {
247 | return packet.data.arrayBuffer().then(toArray).then(callback);
248 | } else if (withNativeArrayBuffer$2 && (packet.data instanceof ArrayBuffer || isView$1(packet.data))) {
249 | return callback(toArray(packet.data));
250 | }
251 | encodePacket(packet, false, function (encoded) {
252 | if (!TEXT_ENCODER) {
253 | TEXT_ENCODER = new TextEncoder();
254 | }
255 | callback(TEXT_ENCODER.encode(encoded));
256 | });
257 | }
258 |
259 | // imported from https://github.com/socketio/base64-arraybuffer
260 | var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
261 | // Use a lookup table to find the index.
262 | var lookup$1 = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
263 | for (var i = 0; i < chars.length; i++) {
264 | lookup$1[chars.charCodeAt(i)] = i;
265 | }
266 | var decode$1 = function decode(base64) {
267 | var bufferLength = base64.length * 0.75,
268 | len = base64.length,
269 | i,
270 | p = 0,
271 | encoded1,
272 | encoded2,
273 | encoded3,
274 | encoded4;
275 | if (base64[base64.length - 1] === '=') {
276 | bufferLength--;
277 | if (base64[base64.length - 2] === '=') {
278 | bufferLength--;
279 | }
280 | }
281 | var arraybuffer = new ArrayBuffer(bufferLength),
282 | bytes = new Uint8Array(arraybuffer);
283 | for (i = 0; i < len; i += 4) {
284 | encoded1 = lookup$1[base64.charCodeAt(i)];
285 | encoded2 = lookup$1[base64.charCodeAt(i + 1)];
286 | encoded3 = lookup$1[base64.charCodeAt(i + 2)];
287 | encoded4 = lookup$1[base64.charCodeAt(i + 3)];
288 | bytes[p++] = encoded1 << 2 | encoded2 >> 4;
289 | bytes[p++] = (encoded2 & 15) << 4 | encoded3 >> 2;
290 | bytes[p++] = (encoded3 & 3) << 6 | encoded4 & 63;
291 | }
292 | return arraybuffer;
293 | };
294 |
295 | var withNativeArrayBuffer$1 = typeof ArrayBuffer === "function";
296 | var decodePacket = function decodePacket(encodedPacket, binaryType) {
297 | if (typeof encodedPacket !== "string") {
298 | return {
299 | type: "message",
300 | data: mapBinary(encodedPacket, binaryType)
301 | };
302 | }
303 | var type = encodedPacket.charAt(0);
304 | if (type === "b") {
305 | return {
306 | type: "message",
307 | data: decodeBase64Packet(encodedPacket.substring(1), binaryType)
308 | };
309 | }
310 | var packetType = PACKET_TYPES_REVERSE[type];
311 | if (!packetType) {
312 | return ERROR_PACKET;
313 | }
314 | return encodedPacket.length > 1 ? {
315 | type: PACKET_TYPES_REVERSE[type],
316 | data: encodedPacket.substring(1)
317 | } : {
318 | type: PACKET_TYPES_REVERSE[type]
319 | };
320 | };
321 | var decodeBase64Packet = function decodeBase64Packet(data, binaryType) {
322 | if (withNativeArrayBuffer$1) {
323 | var decoded = decode$1(data);
324 | return mapBinary(decoded, binaryType);
325 | } else {
326 | return {
327 | base64: true,
328 | data: data
329 | }; // fallback for old browsers
330 | }
331 | };
332 | var mapBinary = function mapBinary(data, binaryType) {
333 | switch (binaryType) {
334 | case "blob":
335 | if (data instanceof Blob) {
336 | // from WebSocket + binaryType "blob"
337 | return data;
338 | } else {
339 | // from HTTP long-polling or WebTransport
340 | return new Blob([data]);
341 | }
342 | case "arraybuffer":
343 | default:
344 | if (data instanceof ArrayBuffer) {
345 | // from HTTP long-polling (base64) or WebSocket + binaryType "arraybuffer"
346 | return data;
347 | } else {
348 | // from WebTransport (Uint8Array)
349 | return data.buffer;
350 | }
351 | }
352 | };
353 |
354 | var SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text
355 | var encodePayload = function encodePayload(packets, callback) {
356 | // some packets may be added to the array while encoding, so the initial length must be saved
357 | var length = packets.length;
358 | var encodedPackets = new Array(length);
359 | var count = 0;
360 | packets.forEach(function (packet, i) {
361 | // force base64 encoding for binary packets
362 | encodePacket(packet, false, function (encodedPacket) {
363 | encodedPackets[i] = encodedPacket;
364 | if (++count === length) {
365 | callback(encodedPackets.join(SEPARATOR));
366 | }
367 | });
368 | });
369 | };
370 | var decodePayload = function decodePayload(encodedPayload, binaryType) {
371 | var encodedPackets = encodedPayload.split(SEPARATOR);
372 | var packets = [];
373 | for (var i = 0; i < encodedPackets.length; i++) {
374 | var decodedPacket = decodePacket(encodedPackets[i], binaryType);
375 | packets.push(decodedPacket);
376 | if (decodedPacket.type === "error") {
377 | break;
378 | }
379 | }
380 | return packets;
381 | };
382 | function createPacketEncoderStream() {
383 | return new TransformStream({
384 | transform: function transform(packet, controller) {
385 | encodePacketToBinary(packet, function (encodedPacket) {
386 | var payloadLength = encodedPacket.length;
387 | var header;
388 | // inspired by the WebSocket format: https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#decoding_payload_length
389 | if (payloadLength < 126) {
390 | header = new Uint8Array(1);
391 | new DataView(header.buffer).setUint8(0, payloadLength);
392 | } else if (payloadLength < 65536) {
393 | header = new Uint8Array(3);
394 | var view = new DataView(header.buffer);
395 | view.setUint8(0, 126);
396 | view.setUint16(1, payloadLength);
397 | } else {
398 | header = new Uint8Array(9);
399 | var _view = new DataView(header.buffer);
400 | _view.setUint8(0, 127);
401 | _view.setBigUint64(1, BigInt(payloadLength));
402 | }
403 | // first bit indicates whether the payload is plain text (0) or binary (1)
404 | if (packet.data && typeof packet.data !== "string") {
405 | header[0] |= 0x80;
406 | }
407 | controller.enqueue(header);
408 | controller.enqueue(encodedPacket);
409 | });
410 | }
411 | });
412 | }
413 | var TEXT_DECODER;
414 | function totalLength(chunks) {
415 | return chunks.reduce(function (acc, chunk) {
416 | return acc + chunk.length;
417 | }, 0);
418 | }
419 | function concatChunks(chunks, size) {
420 | if (chunks[0].length === size) {
421 | return chunks.shift();
422 | }
423 | var buffer = new Uint8Array(size);
424 | var j = 0;
425 | for (var i = 0; i < size; i++) {
426 | buffer[i] = chunks[0][j++];
427 | if (j === chunks[0].length) {
428 | chunks.shift();
429 | j = 0;
430 | }
431 | }
432 | if (chunks.length && j < chunks[0].length) {
433 | chunks[0] = chunks[0].slice(j);
434 | }
435 | return buffer;
436 | }
437 | function createPacketDecoderStream(maxPayload, binaryType) {
438 | if (!TEXT_DECODER) {
439 | TEXT_DECODER = new TextDecoder();
440 | }
441 | var chunks = [];
442 | var state = 0 /* State.READ_HEADER */;
443 | var expectedLength = -1;
444 | var isBinary = false;
445 | return new TransformStream({
446 | transform: function transform(chunk, controller) {
447 | chunks.push(chunk);
448 | while (true) {
449 | if (state === 0 /* State.READ_HEADER */) {
450 | if (totalLength(chunks) < 1) {
451 | break;
452 | }
453 | var header = concatChunks(chunks, 1);
454 | isBinary = (header[0] & 0x80) === 0x80;
455 | expectedLength = header[0] & 0x7f;
456 | if (expectedLength < 126) {
457 | state = 3 /* State.READ_PAYLOAD */;
458 | } else if (expectedLength === 126) {
459 | state = 1 /* State.READ_EXTENDED_LENGTH_16 */;
460 | } else {
461 | state = 2 /* State.READ_EXTENDED_LENGTH_64 */;
462 | }
463 | } else if (state === 1 /* State.READ_EXTENDED_LENGTH_16 */) {
464 | if (totalLength(chunks) < 2) {
465 | break;
466 | }
467 | var headerArray = concatChunks(chunks, 2);
468 | expectedLength = new DataView(headerArray.buffer, headerArray.byteOffset, headerArray.length).getUint16(0);
469 | state = 3 /* State.READ_PAYLOAD */;
470 | } else if (state === 2 /* State.READ_EXTENDED_LENGTH_64 */) {
471 | if (totalLength(chunks) < 8) {
472 | break;
473 | }
474 | var _headerArray = concatChunks(chunks, 8);
475 | var view = new DataView(_headerArray.buffer, _headerArray.byteOffset, _headerArray.length);
476 | var n = view.getUint32(0);
477 | if (n > Math.pow(2, 53 - 32) - 1) {
478 | // the maximum safe integer in JavaScript is 2^53 - 1
479 | controller.enqueue(ERROR_PACKET);
480 | break;
481 | }
482 | expectedLength = n * Math.pow(2, 32) + view.getUint32(4);
483 | state = 3 /* State.READ_PAYLOAD */;
484 | } else {
485 | if (totalLength(chunks) < expectedLength) {
486 | break;
487 | }
488 | var data = concatChunks(chunks, expectedLength);
489 | controller.enqueue(decodePacket(isBinary ? data : TEXT_DECODER.decode(data), binaryType));
490 | state = 0 /* State.READ_HEADER */;
491 | }
492 | if (expectedLength === 0 || expectedLength > maxPayload) {
493 | controller.enqueue(ERROR_PACKET);
494 | break;
495 | }
496 | }
497 | }
498 | });
499 | }
500 | var protocol$1 = 4;
501 |
502 | /**
503 | * Initialize a new `Emitter`.
504 | *
505 | * @api public
506 | */
507 |
508 | function Emitter(obj) {
509 | if (obj) return mixin(obj);
510 | }
511 |
512 | /**
513 | * Mixin the emitter properties.
514 | *
515 | * @param {Object} obj
516 | * @return {Object}
517 | * @api private
518 | */
519 |
520 | function mixin(obj) {
521 | for (var key in Emitter.prototype) {
522 | obj[key] = Emitter.prototype[key];
523 | }
524 | return obj;
525 | }
526 |
527 | /**
528 | * Listen on the given `event` with `fn`.
529 | *
530 | * @param {String} event
531 | * @param {Function} fn
532 | * @return {Emitter}
533 | * @api public
534 | */
535 |
536 | Emitter.prototype.on = Emitter.prototype.addEventListener = function (event, fn) {
537 | this._callbacks = this._callbacks || {};
538 | (this._callbacks['$' + event] = this._callbacks['$' + event] || []).push(fn);
539 | return this;
540 | };
541 |
542 | /**
543 | * Adds an `event` listener that will be invoked a single
544 | * time then automatically removed.
545 | *
546 | * @param {String} event
547 | * @param {Function} fn
548 | * @return {Emitter}
549 | * @api public
550 | */
551 |
552 | Emitter.prototype.once = function (event, fn) {
553 | function on() {
554 | this.off(event, on);
555 | fn.apply(this, arguments);
556 | }
557 | on.fn = fn;
558 | this.on(event, on);
559 | return this;
560 | };
561 |
562 | /**
563 | * Remove the given callback for `event` or all
564 | * registered callbacks.
565 | *
566 | * @param {String} event
567 | * @param {Function} fn
568 | * @return {Emitter}
569 | * @api public
570 | */
571 |
572 | Emitter.prototype.off = Emitter.prototype.removeListener = Emitter.prototype.removeAllListeners = Emitter.prototype.removeEventListener = function (event, fn) {
573 | this._callbacks = this._callbacks || {};
574 |
575 | // all
576 | if (0 == arguments.length) {
577 | this._callbacks = {};
578 | return this;
579 | }
580 |
581 | // specific event
582 | var callbacks = this._callbacks['$' + event];
583 | if (!callbacks) return this;
584 |
585 | // remove all handlers
586 | if (1 == arguments.length) {
587 | delete this._callbacks['$' + event];
588 | return this;
589 | }
590 |
591 | // remove specific handler
592 | var cb;
593 | for (var i = 0; i < callbacks.length; i++) {
594 | cb = callbacks[i];
595 | if (cb === fn || cb.fn === fn) {
596 | callbacks.splice(i, 1);
597 | break;
598 | }
599 | }
600 |
601 | // Remove event specific arrays for event types that no
602 | // one is subscribed for to avoid memory leak.
603 | if (callbacks.length === 0) {
604 | delete this._callbacks['$' + event];
605 | }
606 | return this;
607 | };
608 |
609 | /**
610 | * Emit `event` with the given args.
611 | *
612 | * @param {String} event
613 | * @param {Mixed} ...
614 | * @return {Emitter}
615 | */
616 |
617 | Emitter.prototype.emit = function (event) {
618 | this._callbacks = this._callbacks || {};
619 | var args = new Array(arguments.length - 1),
620 | callbacks = this._callbacks['$' + event];
621 | for (var i = 1; i < arguments.length; i++) {
622 | args[i - 1] = arguments[i];
623 | }
624 | if (callbacks) {
625 | callbacks = callbacks.slice(0);
626 | for (var i = 0, len = callbacks.length; i < len; ++i) {
627 | callbacks[i].apply(this, args);
628 | }
629 | }
630 | return this;
631 | };
632 |
633 | // alias used for reserved events (protected method)
634 | Emitter.prototype.emitReserved = Emitter.prototype.emit;
635 |
636 | /**
637 | * Return array of callbacks for `event`.
638 | *
639 | * @param {String} event
640 | * @return {Array}
641 | * @api public
642 | */
643 |
644 | Emitter.prototype.listeners = function (event) {
645 | this._callbacks = this._callbacks || {};
646 | return this._callbacks['$' + event] || [];
647 | };
648 |
649 | /**
650 | * Check if this emitter has `event` handlers.
651 | *
652 | * @param {String} event
653 | * @return {Boolean}
654 | * @api public
655 | */
656 |
657 | Emitter.prototype.hasListeners = function (event) {
658 | return !!this.listeners(event).length;
659 | };
660 |
661 | var nextTick = function () {
662 | var isPromiseAvailable = typeof Promise === "function" && typeof Promise.resolve === "function";
663 | if (isPromiseAvailable) {
664 | return function (cb) {
665 | return Promise.resolve().then(cb);
666 | };
667 | } else {
668 | return function (cb, setTimeoutFn) {
669 | return setTimeoutFn(cb, 0);
670 | };
671 | }
672 | }();
673 | var globalThisShim = function () {
674 | if (typeof self !== "undefined") {
675 | return self;
676 | } else if (typeof window !== "undefined") {
677 | return window;
678 | } else {
679 | return Function("return this")();
680 | }
681 | }();
682 | var defaultBinaryType = "arraybuffer";
683 | function createCookieJar() {}
684 |
685 | function pick(obj) {
686 | for (var _len = arguments.length, attr = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
687 | attr[_key - 1] = arguments[_key];
688 | }
689 | return attr.reduce(function (acc, k) {
690 | if (obj.hasOwnProperty(k)) {
691 | acc[k] = obj[k];
692 | }
693 | return acc;
694 | }, {});
695 | }
696 | // Keep a reference to the real timeout functions so they can be used when overridden
697 | var NATIVE_SET_TIMEOUT = globalThisShim.setTimeout;
698 | var NATIVE_CLEAR_TIMEOUT = globalThisShim.clearTimeout;
699 | function installTimerFunctions(obj, opts) {
700 | if (opts.useNativeTimers) {
701 | obj.setTimeoutFn = NATIVE_SET_TIMEOUT.bind(globalThisShim);
702 | obj.clearTimeoutFn = NATIVE_CLEAR_TIMEOUT.bind(globalThisShim);
703 | } else {
704 | obj.setTimeoutFn = globalThisShim.setTimeout.bind(globalThisShim);
705 | obj.clearTimeoutFn = globalThisShim.clearTimeout.bind(globalThisShim);
706 | }
707 | }
708 | // base64 encoded buffers are about 33% bigger (https://en.wikipedia.org/wiki/Base64)
709 | var BASE64_OVERHEAD = 1.33;
710 | // we could also have used `new Blob([obj]).size`, but it isn't supported in IE9
711 | function byteLength(obj) {
712 | if (typeof obj === "string") {
713 | return utf8Length(obj);
714 | }
715 | // arraybuffer or blob
716 | return Math.ceil((obj.byteLength || obj.size) * BASE64_OVERHEAD);
717 | }
718 | function utf8Length(str) {
719 | var c = 0,
720 | length = 0;
721 | for (var i = 0, l = str.length; i < l; i++) {
722 | c = str.charCodeAt(i);
723 | if (c < 0x80) {
724 | length += 1;
725 | } else if (c < 0x800) {
726 | length += 2;
727 | } else if (c < 0xd800 || c >= 0xe000) {
728 | length += 3;
729 | } else {
730 | i++;
731 | length += 4;
732 | }
733 | }
734 | return length;
735 | }
736 | /**
737 | * Generates a random 8-characters string.
738 | */
739 | function randomString() {
740 | return Date.now().toString(36).substring(3) + Math.random().toString(36).substring(2, 5);
741 | }
742 |
743 | // imported from https://github.com/galkn/querystring
744 | /**
745 | * Compiles a querystring
746 | * Returns string representation of the object
747 | *
748 | * @param {Object}
749 | * @api private
750 | */
751 | function encode(obj) {
752 | var str = '';
753 | for (var i in obj) {
754 | if (obj.hasOwnProperty(i)) {
755 | if (str.length) str += '&';
756 | str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
757 | }
758 | }
759 | return str;
760 | }
761 | /**
762 | * Parses a simple querystring into an object
763 | *
764 | * @param {String} qs
765 | * @api private
766 | */
767 | function decode(qs) {
768 | var qry = {};
769 | var pairs = qs.split('&');
770 | for (var i = 0, l = pairs.length; i < l; i++) {
771 | var pair = pairs[i].split('=');
772 | qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
773 | }
774 | return qry;
775 | }
776 |
777 | var TransportError = /*#__PURE__*/function (_Error) {
778 | function TransportError(reason, description, context) {
779 | var _this;
780 | _this = _Error.call(this, reason) || this;
781 | _this.description = description;
782 | _this.context = context;
783 | _this.type = "TransportError";
784 | return _this;
785 | }
786 | _inheritsLoose(TransportError, _Error);
787 | return TransportError;
788 | }( /*#__PURE__*/_wrapNativeSuper(Error));
789 | var Transport = /*#__PURE__*/function (_Emitter) {
790 | /**
791 | * Transport abstract constructor.
792 | *
793 | * @param {Object} opts - options
794 | * @protected
795 | */
796 | function Transport(opts) {
797 | var _this2;
798 | _this2 = _Emitter.call(this) || this;
799 | _this2.writable = false;
800 | installTimerFunctions(_this2, opts);
801 | _this2.opts = opts;
802 | _this2.query = opts.query;
803 | _this2.socket = opts.socket;
804 | _this2.supportsBinary = !opts.forceBase64;
805 | return _this2;
806 | }
807 | /**
808 | * Emits an error.
809 | *
810 | * @param {String} reason
811 | * @param description
812 | * @param context - the error context
813 | * @return {Transport} for chaining
814 | * @protected
815 | */
816 | _inheritsLoose(Transport, _Emitter);
817 | var _proto = Transport.prototype;
818 | _proto.onError = function onError(reason, description, context) {
819 | _Emitter.prototype.emitReserved.call(this, "error", new TransportError(reason, description, context));
820 | return this;
821 | }
822 | /**
823 | * Opens the transport.
824 | */;
825 | _proto.open = function open() {
826 | this.readyState = "opening";
827 | this.doOpen();
828 | return this;
829 | }
830 | /**
831 | * Closes the transport.
832 | */;
833 | _proto.close = function close() {
834 | if (this.readyState === "opening" || this.readyState === "open") {
835 | this.doClose();
836 | this.onClose();
837 | }
838 | return this;
839 | }
840 | /**
841 | * Sends multiple packets.
842 | *
843 | * @param {Array} packets
844 | */;
845 | _proto.send = function send(packets) {
846 | if (this.readyState === "open") {
847 | this.write(packets);
848 | }
849 | }
850 | /**
851 | * Called upon open
852 | *
853 | * @protected
854 | */;
855 | _proto.onOpen = function onOpen() {
856 | this.readyState = "open";
857 | this.writable = true;
858 | _Emitter.prototype.emitReserved.call(this, "open");
859 | }
860 | /**
861 | * Called with data.
862 | *
863 | * @param {String} data
864 | * @protected
865 | */;
866 | _proto.onData = function onData(data) {
867 | var packet = decodePacket(data, this.socket.binaryType);
868 | this.onPacket(packet);
869 | }
870 | /**
871 | * Called with a decoded packet.
872 | *
873 | * @protected
874 | */;
875 | _proto.onPacket = function onPacket(packet) {
876 | _Emitter.prototype.emitReserved.call(this, "packet", packet);
877 | }
878 | /**
879 | * Called upon close.
880 | *
881 | * @protected
882 | */;
883 | _proto.onClose = function onClose(details) {
884 | this.readyState = "closed";
885 | _Emitter.prototype.emitReserved.call(this, "close", details);
886 | }
887 | /**
888 | * Pauses the transport, in order not to lose packets during an upgrade.
889 | *
890 | * @param onPause
891 | */;
892 | _proto.pause = function pause(onPause) {};
893 | _proto.createUri = function createUri(schema) {
894 | var query = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
895 | return schema + "://" + this._hostname() + this._port() + this.opts.path + this._query(query);
896 | };
897 | _proto._hostname = function _hostname() {
898 | var hostname = this.opts.hostname;
899 | return hostname.indexOf(":") === -1 ? hostname : "[" + hostname + "]";
900 | };
901 | _proto._port = function _port() {
902 | if (this.opts.port && (this.opts.secure && Number(this.opts.port !== 443) || !this.opts.secure && Number(this.opts.port) !== 80)) {
903 | return ":" + this.opts.port;
904 | } else {
905 | return "";
906 | }
907 | };
908 | _proto._query = function _query(query) {
909 | var encodedQuery = encode(query);
910 | return encodedQuery.length ? "?" + encodedQuery : "";
911 | };
912 | return Transport;
913 | }(Emitter);
914 |
915 | var Polling = /*#__PURE__*/function (_Transport) {
916 | function Polling() {
917 | var _this;
918 | _this = _Transport.apply(this, arguments) || this;
919 | _this._polling = false;
920 | return _this;
921 | }
922 | _inheritsLoose(Polling, _Transport);
923 | var _proto = Polling.prototype;
924 | /**
925 | * Opens the socket (triggers polling). We write a PING message to determine
926 | * when the transport is open.
927 | *
928 | * @protected
929 | */
930 | _proto.doOpen = function doOpen() {
931 | this._poll();
932 | }
933 | /**
934 | * Pauses polling.
935 | *
936 | * @param {Function} onPause - callback upon buffers are flushed and transport is paused
937 | * @package
938 | */;
939 | _proto.pause = function pause(onPause) {
940 | var _this2 = this;
941 | this.readyState = "pausing";
942 | var pause = function pause() {
943 | _this2.readyState = "paused";
944 | onPause();
945 | };
946 | if (this._polling || !this.writable) {
947 | var total = 0;
948 | if (this._polling) {
949 | total++;
950 | this.once("pollComplete", function () {
951 | --total || pause();
952 | });
953 | }
954 | if (!this.writable) {
955 | total++;
956 | this.once("drain", function () {
957 | --total || pause();
958 | });
959 | }
960 | } else {
961 | pause();
962 | }
963 | }
964 | /**
965 | * Starts polling cycle.
966 | *
967 | * @private
968 | */;
969 | _proto._poll = function _poll() {
970 | this._polling = true;
971 | this.doPoll();
972 | this.emitReserved("poll");
973 | }
974 | /**
975 | * Overloads onData to detect payloads.
976 | *
977 | * @protected
978 | */;
979 | _proto.onData = function onData(data) {
980 | var _this3 = this;
981 | var callback = function callback(packet) {
982 | // if its the first message we consider the transport open
983 | if ("opening" === _this3.readyState && packet.type === "open") {
984 | _this3.onOpen();
985 | }
986 | // if its a close packet, we close the ongoing requests
987 | if ("close" === packet.type) {
988 | _this3.onClose({
989 | description: "transport closed by the server"
990 | });
991 | return false;
992 | }
993 | // otherwise bypass onData and handle the message
994 | _this3.onPacket(packet);
995 | };
996 | // decode payload
997 | decodePayload(data, this.socket.binaryType).forEach(callback);
998 | // if an event did not trigger closing
999 | if ("closed" !== this.readyState) {
1000 | // if we got data we're not polling
1001 | this._polling = false;
1002 | this.emitReserved("pollComplete");
1003 | if ("open" === this.readyState) {
1004 | this._poll();
1005 | }
1006 | }
1007 | }
1008 | /**
1009 | * For polling, send a close packet.
1010 | *
1011 | * @protected
1012 | */;
1013 | _proto.doClose = function doClose() {
1014 | var _this4 = this;
1015 | var close = function close() {
1016 | _this4.write([{
1017 | type: "close"
1018 | }]);
1019 | };
1020 | if ("open" === this.readyState) {
1021 | close();
1022 | } else {
1023 | // in case we're trying to close while
1024 | // handshaking is in progress (GH-164)
1025 | this.once("open", close);
1026 | }
1027 | }
1028 | /**
1029 | * Writes a packets payload.
1030 | *
1031 | * @param {Array} packets - data packets
1032 | * @protected
1033 | */;
1034 | _proto.write = function write(packets) {
1035 | var _this5 = this;
1036 | this.writable = false;
1037 | encodePayload(packets, function (data) {
1038 | _this5.doWrite(data, function () {
1039 | _this5.writable = true;
1040 | _this5.emitReserved("drain");
1041 | });
1042 | });
1043 | }
1044 | /**
1045 | * Generates uri for connection.
1046 | *
1047 | * @private
1048 | */;
1049 | _proto.uri = function uri() {
1050 | var schema = this.opts.secure ? "https" : "http";
1051 | var query = this.query || {};
1052 | // cache busting is forced
1053 | if (false !== this.opts.timestampRequests) {
1054 | query[this.opts.timestampParam] = randomString();
1055 | }
1056 | if (!this.supportsBinary && !query.sid) {
1057 | query.b64 = 1;
1058 | }
1059 | return this.createUri(schema, query);
1060 | };
1061 | return _createClass(Polling, [{
1062 | key: "name",
1063 | get: function get() {
1064 | return "polling";
1065 | }
1066 | }]);
1067 | }(Transport);
1068 |
1069 | // imported from https://github.com/component/has-cors
1070 | var value = false;
1071 | try {
1072 | value = typeof XMLHttpRequest !== 'undefined' && 'withCredentials' in new XMLHttpRequest();
1073 | } catch (err) {
1074 | // if XMLHttp support is disabled in IE then it will throw
1075 | // when trying to create
1076 | }
1077 | var hasCORS = value;
1078 |
1079 | function empty() {}
1080 | var BaseXHR = /*#__PURE__*/function (_Polling) {
1081 | /**
1082 | * XHR Polling constructor.
1083 | *
1084 | * @param {Object} opts
1085 | * @package
1086 | */
1087 | function BaseXHR(opts) {
1088 | var _this;
1089 | _this = _Polling.call(this, opts) || this;
1090 | if (typeof location !== "undefined") {
1091 | var isSSL = "https:" === location.protocol;
1092 | var port = location.port;
1093 | // some user agents have empty `location.port`
1094 | if (!port) {
1095 | port = isSSL ? "443" : "80";
1096 | }
1097 | _this.xd = typeof location !== "undefined" && opts.hostname !== location.hostname || port !== opts.port;
1098 | }
1099 | return _this;
1100 | }
1101 | /**
1102 | * Sends data.
1103 | *
1104 | * @param {String} data to send.
1105 | * @param {Function} called upon flush.
1106 | * @private
1107 | */
1108 | _inheritsLoose(BaseXHR, _Polling);
1109 | var _proto = BaseXHR.prototype;
1110 | _proto.doWrite = function doWrite(data, fn) {
1111 | var _this2 = this;
1112 | var req = this.request({
1113 | method: "POST",
1114 | data: data
1115 | });
1116 | req.on("success", fn);
1117 | req.on("error", function (xhrStatus, context) {
1118 | _this2.onError("xhr post error", xhrStatus, context);
1119 | });
1120 | }
1121 | /**
1122 | * Starts a poll cycle.
1123 | *
1124 | * @private
1125 | */;
1126 | _proto.doPoll = function doPoll() {
1127 | var _this3 = this;
1128 | var req = this.request();
1129 | req.on("data", this.onData.bind(this));
1130 | req.on("error", function (xhrStatus, context) {
1131 | _this3.onError("xhr poll error", xhrStatus, context);
1132 | });
1133 | this.pollXhr = req;
1134 | };
1135 | return BaseXHR;
1136 | }(Polling);
1137 | var Request = /*#__PURE__*/function (_Emitter) {
1138 | /**
1139 | * Request constructor
1140 | *
1141 | * @param {Object} options
1142 | * @package
1143 | */
1144 | function Request(createRequest, uri, opts) {
1145 | var _this4;
1146 | _this4 = _Emitter.call(this) || this;
1147 | _this4.createRequest = createRequest;
1148 | installTimerFunctions(_this4, opts);
1149 | _this4._opts = opts;
1150 | _this4._method = opts.method || "GET";
1151 | _this4._uri = uri;
1152 | _this4._data = undefined !== opts.data ? opts.data : null;
1153 | _this4._create();
1154 | return _this4;
1155 | }
1156 | /**
1157 | * Creates the XHR object and sends the request.
1158 | *
1159 | * @private
1160 | */
1161 | _inheritsLoose(Request, _Emitter);
1162 | var _proto2 = Request.prototype;
1163 | _proto2._create = function _create() {
1164 | var _this5 = this;
1165 | var _a;
1166 | var opts = pick(this._opts, "agent", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "autoUnref");
1167 | opts.xdomain = !!this._opts.xd;
1168 | var xhr = this._xhr = this.createRequest(opts);
1169 | try {
1170 | xhr.open(this._method, this._uri, true);
1171 | try {
1172 | if (this._opts.extraHeaders) {
1173 | // @ts-ignore
1174 | xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);
1175 | for (var i in this._opts.extraHeaders) {
1176 | if (this._opts.extraHeaders.hasOwnProperty(i)) {
1177 | xhr.setRequestHeader(i, this._opts.extraHeaders[i]);
1178 | }
1179 | }
1180 | }
1181 | } catch (e) {}
1182 | if ("POST" === this._method) {
1183 | try {
1184 | xhr.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
1185 | } catch (e) {}
1186 | }
1187 | try {
1188 | xhr.setRequestHeader("Accept", "*/*");
1189 | } catch (e) {}
1190 | (_a = this._opts.cookieJar) === null || _a === void 0 ? void 0 : _a.addCookies(xhr);
1191 | // ie6 check
1192 | if ("withCredentials" in xhr) {
1193 | xhr.withCredentials = this._opts.withCredentials;
1194 | }
1195 | if (this._opts.requestTimeout) {
1196 | xhr.timeout = this._opts.requestTimeout;
1197 | }
1198 | xhr.onreadystatechange = function () {
1199 | var _a;
1200 | if (xhr.readyState === 3) {
1201 | (_a = _this5._opts.cookieJar) === null || _a === void 0 ? void 0 : _a.parseCookies(
1202 | // @ts-ignore
1203 | xhr.getResponseHeader("set-cookie"));
1204 | }
1205 | if (4 !== xhr.readyState) return;
1206 | if (200 === xhr.status || 1223 === xhr.status) {
1207 | _this5._onLoad();
1208 | } else {
1209 | // make sure the `error` event handler that's user-set
1210 | // does not throw in the same tick and gets caught here
1211 | _this5.setTimeoutFn(function () {
1212 | _this5._onError(typeof xhr.status === "number" ? xhr.status : 0);
1213 | }, 0);
1214 | }
1215 | };
1216 | xhr.send(this._data);
1217 | } catch (e) {
1218 | // Need to defer since .create() is called directly from the constructor
1219 | // and thus the 'error' event can only be only bound *after* this exception
1220 | // occurs. Therefore, also, we cannot throw here at all.
1221 | this.setTimeoutFn(function () {
1222 | _this5._onError(e);
1223 | }, 0);
1224 | return;
1225 | }
1226 | if (typeof document !== "undefined") {
1227 | this._index = Request.requestsCount++;
1228 | Request.requests[this._index] = this;
1229 | }
1230 | }
1231 | /**
1232 | * Called upon error.
1233 | *
1234 | * @private
1235 | */;
1236 | _proto2._onError = function _onError(err) {
1237 | this.emitReserved("error", err, this._xhr);
1238 | this._cleanup(true);
1239 | }
1240 | /**
1241 | * Cleans up house.
1242 | *
1243 | * @private
1244 | */;
1245 | _proto2._cleanup = function _cleanup(fromError) {
1246 | if ("undefined" === typeof this._xhr || null === this._xhr) {
1247 | return;
1248 | }
1249 | this._xhr.onreadystatechange = empty;
1250 | if (fromError) {
1251 | try {
1252 | this._xhr.abort();
1253 | } catch (e) {}
1254 | }
1255 | if (typeof document !== "undefined") {
1256 | delete Request.requests[this._index];
1257 | }
1258 | this._xhr = null;
1259 | }
1260 | /**
1261 | * Called upon load.
1262 | *
1263 | * @private
1264 | */;
1265 | _proto2._onLoad = function _onLoad() {
1266 | var data = this._xhr.responseText;
1267 | if (data !== null) {
1268 | this.emitReserved("data", data);
1269 | this.emitReserved("success");
1270 | this._cleanup();
1271 | }
1272 | }
1273 | /**
1274 | * Aborts the request.
1275 | *
1276 | * @package
1277 | */;
1278 | _proto2.abort = function abort() {
1279 | this._cleanup();
1280 | };
1281 | return Request;
1282 | }(Emitter);
1283 | Request.requestsCount = 0;
1284 | Request.requests = {};
1285 | /**
1286 | * Aborts pending requests when unloading the window. This is needed to prevent
1287 | * memory leaks (e.g. when using IE) and to ensure that no spurious error is
1288 | * emitted.
1289 | */
1290 | if (typeof document !== "undefined") {
1291 | // @ts-ignore
1292 | if (typeof attachEvent === "function") {
1293 | // @ts-ignore
1294 | attachEvent("onunload", unloadHandler);
1295 | } else if (typeof addEventListener === "function") {
1296 | var terminationEvent = "onpagehide" in globalThisShim ? "pagehide" : "unload";
1297 | addEventListener(terminationEvent, unloadHandler, false);
1298 | }
1299 | }
1300 | function unloadHandler() {
1301 | for (var i in Request.requests) {
1302 | if (Request.requests.hasOwnProperty(i)) {
1303 | Request.requests[i].abort();
1304 | }
1305 | }
1306 | }
1307 | var hasXHR2 = function () {
1308 | var xhr = newRequest({
1309 | xdomain: false
1310 | });
1311 | return xhr && xhr.responseType !== null;
1312 | }();
1313 | /**
1314 | * HTTP long-polling based on the built-in `XMLHttpRequest` object.
1315 | *
1316 | * Usage: browser
1317 | *
1318 | * @see https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest
1319 | */
1320 | var XHR = /*#__PURE__*/function (_BaseXHR) {
1321 | function XHR(opts) {
1322 | var _this6;
1323 | _this6 = _BaseXHR.call(this, opts) || this;
1324 | var forceBase64 = opts && opts.forceBase64;
1325 | _this6.supportsBinary = hasXHR2 && !forceBase64;
1326 | return _this6;
1327 | }
1328 | _inheritsLoose(XHR, _BaseXHR);
1329 | var _proto3 = XHR.prototype;
1330 | _proto3.request = function request() {
1331 | var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
1332 | _extends(opts, {
1333 | xd: this.xd
1334 | }, this.opts);
1335 | return new Request(newRequest, this.uri(), opts);
1336 | };
1337 | return XHR;
1338 | }(BaseXHR);
1339 | function newRequest(opts) {
1340 | var xdomain = opts.xdomain;
1341 | // XMLHttpRequest can be disabled on IE
1342 | try {
1343 | if ("undefined" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
1344 | return new XMLHttpRequest();
1345 | }
1346 | } catch (e) {}
1347 | if (!xdomain) {
1348 | try {
1349 | return new globalThisShim[["Active"].concat("Object").join("X")]("Microsoft.XMLHTTP");
1350 | } catch (e) {}
1351 | }
1352 | }
1353 |
1354 | // detect ReactNative environment
1355 | var isReactNative = typeof navigator !== "undefined" && typeof navigator.product === "string" && navigator.product.toLowerCase() === "reactnative";
1356 | var BaseWS = /*#__PURE__*/function (_Transport) {
1357 | function BaseWS() {
1358 | return _Transport.apply(this, arguments) || this;
1359 | }
1360 | _inheritsLoose(BaseWS, _Transport);
1361 | var _proto = BaseWS.prototype;
1362 | _proto.doOpen = function doOpen() {
1363 | var uri = this.uri();
1364 | var protocols = this.opts.protocols;
1365 | // React Native only supports the 'headers' option, and will print a warning if anything else is passed
1366 | var opts = isReactNative ? {} : pick(this.opts, "agent", "perMessageDeflate", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "localAddress", "protocolVersion", "origin", "maxPayload", "family", "checkServerIdentity");
1367 | if (this.opts.extraHeaders) {
1368 | opts.headers = this.opts.extraHeaders;
1369 | }
1370 | try {
1371 | this.ws = this.createSocket(uri, protocols, opts);
1372 | } catch (err) {
1373 | return this.emitReserved("error", err);
1374 | }
1375 | this.ws.binaryType = this.socket.binaryType;
1376 | this.addEventListeners();
1377 | }
1378 | /**
1379 | * Adds event listeners to the socket
1380 | *
1381 | * @private
1382 | */;
1383 | _proto.addEventListeners = function addEventListeners() {
1384 | var _this = this;
1385 | this.ws.onopen = function () {
1386 | if (_this.opts.autoUnref) {
1387 | _this.ws._socket.unref();
1388 | }
1389 | _this.onOpen();
1390 | };
1391 | this.ws.onclose = function (closeEvent) {
1392 | return _this.onClose({
1393 | description: "websocket connection closed",
1394 | context: closeEvent
1395 | });
1396 | };
1397 | this.ws.onmessage = function (ev) {
1398 | return _this.onData(ev.data);
1399 | };
1400 | this.ws.onerror = function (e) {
1401 | return _this.onError("websocket error", e);
1402 | };
1403 | };
1404 | _proto.write = function write(packets) {
1405 | var _this2 = this;
1406 | this.writable = false;
1407 | // encodePacket efficient as it uses WS framing
1408 | // no need for encodePayload
1409 | var _loop = function _loop() {
1410 | var packet = packets[i];
1411 | var lastPacket = i === packets.length - 1;
1412 | encodePacket(packet, _this2.supportsBinary, function (data) {
1413 | // Sometimes the websocket has already been closed but the browser didn't
1414 | // have a chance of informing us about it yet, in that case send will
1415 | // throw an error
1416 | try {
1417 | _this2.doWrite(packet, data);
1418 | } catch (e) {}
1419 | if (lastPacket) {
1420 | // fake drain
1421 | // defer to next tick to allow Socket to clear writeBuffer
1422 | nextTick(function () {
1423 | _this2.writable = true;
1424 | _this2.emitReserved("drain");
1425 | }, _this2.setTimeoutFn);
1426 | }
1427 | });
1428 | };
1429 | for (var i = 0; i < packets.length; i++) {
1430 | _loop();
1431 | }
1432 | };
1433 | _proto.doClose = function doClose() {
1434 | if (typeof this.ws !== "undefined") {
1435 | this.ws.onerror = function () {};
1436 | this.ws.close();
1437 | this.ws = null;
1438 | }
1439 | }
1440 | /**
1441 | * Generates uri for connection.
1442 | *
1443 | * @private
1444 | */;
1445 | _proto.uri = function uri() {
1446 | var schema = this.opts.secure ? "wss" : "ws";
1447 | var query = this.query || {};
1448 | // append timestamp to URI
1449 | if (this.opts.timestampRequests) {
1450 | query[this.opts.timestampParam] = randomString();
1451 | }
1452 | // communicate binary support capabilities
1453 | if (!this.supportsBinary) {
1454 | query.b64 = 1;
1455 | }
1456 | return this.createUri(schema, query);
1457 | };
1458 | return _createClass(BaseWS, [{
1459 | key: "name",
1460 | get: function get() {
1461 | return "websocket";
1462 | }
1463 | }]);
1464 | }(Transport);
1465 | var WebSocketCtor = globalThisShim.WebSocket || globalThisShim.MozWebSocket;
1466 | /**
1467 | * WebSocket transport based on the built-in `WebSocket` object.
1468 | *
1469 | * Usage: browser, Node.js (since v21), Deno, Bun
1470 | *
1471 | * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket
1472 | * @see https://caniuse.com/mdn-api_websocket
1473 | * @see https://nodejs.org/api/globals.html#websocket
1474 | */
1475 | var WS = /*#__PURE__*/function (_BaseWS) {
1476 | function WS() {
1477 | return _BaseWS.apply(this, arguments) || this;
1478 | }
1479 | _inheritsLoose(WS, _BaseWS);
1480 | var _proto2 = WS.prototype;
1481 | _proto2.createSocket = function createSocket(uri, protocols, opts) {
1482 | return !isReactNative ? protocols ? new WebSocketCtor(uri, protocols) : new WebSocketCtor(uri) : new WebSocketCtor(uri, protocols, opts);
1483 | };
1484 | _proto2.doWrite = function doWrite(_packet, data) {
1485 | this.ws.send(data);
1486 | };
1487 | return WS;
1488 | }(BaseWS);
1489 |
1490 | /**
1491 | * WebTransport transport based on the built-in `WebTransport` object.
1492 | *
1493 | * Usage: browser, Node.js (with the `@fails-components/webtransport` package)
1494 | *
1495 | * @see https://developer.mozilla.org/en-US/docs/Web/API/WebTransport
1496 | * @see https://caniuse.com/webtransport
1497 | */
1498 | var WT = /*#__PURE__*/function (_Transport) {
1499 | function WT() {
1500 | return _Transport.apply(this, arguments) || this;
1501 | }
1502 | _inheritsLoose(WT, _Transport);
1503 | var _proto = WT.prototype;
1504 | _proto.doOpen = function doOpen() {
1505 | var _this = this;
1506 | try {
1507 | // @ts-ignore
1508 | this._transport = new WebTransport(this.createUri("https"), this.opts.transportOptions[this.name]);
1509 | } catch (err) {
1510 | return this.emitReserved("error", err);
1511 | }
1512 | this._transport.closed.then(function () {
1513 | _this.onClose();
1514 | })["catch"](function (err) {
1515 | _this.onError("webtransport error", err);
1516 | });
1517 | // note: we could have used async/await, but that would require some additional polyfills
1518 | this._transport.ready.then(function () {
1519 | _this._transport.createBidirectionalStream().then(function (stream) {
1520 | var decoderStream = createPacketDecoderStream(Number.MAX_SAFE_INTEGER, _this.socket.binaryType);
1521 | var reader = stream.readable.pipeThrough(decoderStream).getReader();
1522 | var encoderStream = createPacketEncoderStream();
1523 | encoderStream.readable.pipeTo(stream.writable);
1524 | _this._writer = encoderStream.writable.getWriter();
1525 | var read = function read() {
1526 | reader.read().then(function (_ref) {
1527 | var done = _ref.done,
1528 | value = _ref.value;
1529 | if (done) {
1530 | return;
1531 | }
1532 | _this.onPacket(value);
1533 | read();
1534 | })["catch"](function (err) {});
1535 | };
1536 | read();
1537 | var packet = {
1538 | type: "open"
1539 | };
1540 | if (_this.query.sid) {
1541 | packet.data = "{\"sid\":\"".concat(_this.query.sid, "\"}");
1542 | }
1543 | _this._writer.write(packet).then(function () {
1544 | return _this.onOpen();
1545 | });
1546 | });
1547 | });
1548 | };
1549 | _proto.write = function write(packets) {
1550 | var _this2 = this;
1551 | this.writable = false;
1552 | var _loop = function _loop() {
1553 | var packet = packets[i];
1554 | var lastPacket = i === packets.length - 1;
1555 | _this2._writer.write(packet).then(function () {
1556 | if (lastPacket) {
1557 | nextTick(function () {
1558 | _this2.writable = true;
1559 | _this2.emitReserved("drain");
1560 | }, _this2.setTimeoutFn);
1561 | }
1562 | });
1563 | };
1564 | for (var i = 0; i < packets.length; i++) {
1565 | _loop();
1566 | }
1567 | };
1568 | _proto.doClose = function doClose() {
1569 | var _a;
1570 | (_a = this._transport) === null || _a === void 0 ? void 0 : _a.close();
1571 | };
1572 | return _createClass(WT, [{
1573 | key: "name",
1574 | get: function get() {
1575 | return "webtransport";
1576 | }
1577 | }]);
1578 | }(Transport);
1579 |
1580 | var transports = {
1581 | websocket: WS,
1582 | webtransport: WT,
1583 | polling: XHR
1584 | };
1585 |
1586 | // imported from https://github.com/galkn/parseuri
1587 | /**
1588 | * Parses a URI
1589 | *
1590 | * Note: we could also have used the built-in URL object, but it isn't supported on all platforms.
1591 | *
1592 | * See:
1593 | * - https://developer.mozilla.org/en-US/docs/Web/API/URL
1594 | * - https://caniuse.com/url
1595 | * - https://www.rfc-editor.org/rfc/rfc3986#appendix-B
1596 | *
1597 | * History of the parse() method:
1598 | * - first commit: https://github.com/socketio/socket.io-client/commit/4ee1d5d94b3906a9c052b459f1a818b15f38f91c
1599 | * - export into its own module: https://github.com/socketio/engine.io-client/commit/de2c561e4564efeb78f1bdb1ba39ef81b2822cb3
1600 | * - reimport: https://github.com/socketio/engine.io-client/commit/df32277c3f6d622eec5ed09f493cae3f3391d242
1601 | *
1602 | * @author Steven Levithan <stevenlevithan.com> (MIT license)
1603 | * @api private
1604 | */
1605 | var re = /^(?:(?![^:@\/?#]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@\/?#]*)(?::([^:@\/?#]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
1606 | var parts = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'];
1607 | function parse(str) {
1608 | if (str.length > 8000) {
1609 | throw "URI too long";
1610 | }
1611 | var src = str,
1612 | b = str.indexOf('['),
1613 | e = str.indexOf(']');
1614 | if (b != -1 && e != -1) {
1615 | str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
1616 | }
1617 | var m = re.exec(str || ''),
1618 | uri = {},
1619 | i = 14;
1620 | while (i--) {
1621 | uri[parts[i]] = m[i] || '';
1622 | }
1623 | if (b != -1 && e != -1) {
1624 | uri.source = src;
1625 | uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
1626 | uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
1627 | uri.ipv6uri = true;
1628 | }
1629 | uri.pathNames = pathNames(uri, uri['path']);
1630 | uri.queryKey = queryKey(uri, uri['query']);
1631 | return uri;
1632 | }
1633 | function pathNames(obj, path) {
1634 | var regx = /\/{2,9}/g,
1635 | names = path.replace(regx, "/").split("/");
1636 | if (path.slice(0, 1) == '/' || path.length === 0) {
1637 | names.splice(0, 1);
1638 | }
1639 | if (path.slice(-1) == '/') {
1640 | names.splice(names.length - 1, 1);
1641 | }
1642 | return names;
1643 | }
1644 | function queryKey(uri, query) {
1645 | var data = {};
1646 | query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {
1647 | if ($1) {
1648 | data[$1] = $2;
1649 | }
1650 | });
1651 | return data;
1652 | }
1653 |
1654 | var withEventListeners = typeof addEventListener === "function" && typeof removeEventListener === "function";
1655 | var OFFLINE_EVENT_LISTENERS = [];
1656 | if (withEventListeners) {
1657 | // within a ServiceWorker, any event handler for the 'offline' event must be added on the initial evaluation of the
1658 | // script, so we create one single event listener here which will forward the event to the socket instances
1659 | addEventListener("offline", function () {
1660 | OFFLINE_EVENT_LISTENERS.forEach(function (listener) {
1661 | return listener();
1662 | });
1663 | }, false);
1664 | }
1665 | /**
1666 | * This class provides a WebSocket-like interface to connect to an Engine.IO server. The connection will be established
1667 | * with one of the available low-level transports, like HTTP long-polling, WebSocket or WebTransport.
1668 | *
1669 | * This class comes without upgrade mechanism, which means that it will keep the first low-level transport that
1670 | * successfully establishes the connection.
1671 | *
1672 | * In order to allow tree-shaking, there are no transports included, that's why the `transports` option is mandatory.
1673 | *
1674 | * @example
1675 | * import { SocketWithoutUpgrade, WebSocket } from "engine.io-client";
1676 | *
1677 | * const socket = new SocketWithoutUpgrade({
1678 | * transports: [WebSocket]
1679 | * });
1680 | *
1681 | * socket.on("open", () => {
1682 | * socket.send("hello");
1683 | * });
1684 | *
1685 | * @see SocketWithUpgrade
1686 | * @see Socket
1687 | */
1688 | var SocketWithoutUpgrade = /*#__PURE__*/function (_Emitter) {
1689 | /**
1690 | * Socket constructor.
1691 | *
1692 | * @param {String|Object} uri - uri or options
1693 | * @param {Object} opts - options
1694 | */
1695 | function SocketWithoutUpgrade(uri, opts) {
1696 | var _this;
1697 | _this = _Emitter.call(this) || this;
1698 | _this.binaryType = defaultBinaryType;
1699 | _this.writeBuffer = [];
1700 | _this._prevBufferLen = 0;
1701 | _this._pingInterval = -1;
1702 | _this._pingTimeout = -1;
1703 | _this._maxPayload = -1;
1704 | /**
1705 | * The expiration timestamp of the {@link _pingTimeoutTimer} object is tracked, in case the timer is throttled and the
1706 | * callback is not fired on time. This can happen for example when a laptop is suspended or when a phone is locked.
1707 | */
1708 | _this._pingTimeoutTime = Infinity;
1709 | if (uri && "object" === _typeof(uri)) {
1710 | opts = uri;
1711 | uri = null;
1712 | }
1713 | if (uri) {
1714 | var parsedUri = parse(uri);
1715 | opts.hostname = parsedUri.host;
1716 | opts.secure = parsedUri.protocol === "https" || parsedUri.protocol === "wss";
1717 | opts.port = parsedUri.port;
1718 | if (parsedUri.query) opts.query = parsedUri.query;
1719 | } else if (opts.host) {
1720 | opts.hostname = parse(opts.host).host;
1721 | }
1722 | installTimerFunctions(_this, opts);
1723 | _this.secure = null != opts.secure ? opts.secure : typeof location !== "undefined" && "https:" === location.protocol;
1724 | if (opts.hostname && !opts.port) {
1725 | // if no port is specified manually, use the protocol default
1726 | opts.port = _this.secure ? "443" : "80";
1727 | }
1728 | _this.hostname = opts.hostname || (typeof location !== "undefined" ? location.hostname : "localhost");
1729 | _this.port = opts.port || (typeof location !== "undefined" && location.port ? location.port : _this.secure ? "443" : "80");
1730 | _this.transports = [];
1731 | _this._transportsByName = {};
1732 | opts.transports.forEach(function (t) {
1733 | var transportName = t.prototype.name;
1734 | _this.transports.push(transportName);
1735 | _this._transportsByName[transportName] = t;
1736 | });
1737 | _this.opts = _extends({
1738 | path: "/engine.io",
1739 | agent: false,
1740 | withCredentials: false,
1741 | upgrade: true,
1742 | timestampParam: "t",
1743 | rememberUpgrade: false,
1744 | addTrailingSlash: true,
1745 | rejectUnauthorized: true,
1746 | perMessageDeflate: {
1747 | threshold: 1024
1748 | },
1749 | transportOptions: {},
1750 | closeOnBeforeunload: false
1751 | }, opts);
1752 | _this.opts.path = _this.opts.path.replace(/\/$/, "") + (_this.opts.addTrailingSlash ? "/" : "");
1753 | if (typeof _this.opts.query === "string") {
1754 | _this.opts.query = decode(_this.opts.query);
1755 | }
1756 | if (withEventListeners) {
1757 | if (_this.opts.closeOnBeforeunload) {
1758 | // Firefox closes the connection when the "beforeunload" event is emitted but not Chrome. This event listener
1759 | // ensures every browser behaves the same (no "disconnect" event at the Socket.IO level when the page is
1760 | // closed/reloaded)
1761 | _this._beforeunloadEventListener = function () {
1762 | if (_this.transport) {
1763 | // silently close the transport
1764 | _this.transport.removeAllListeners();
1765 | _this.transport.close();
1766 | }
1767 | };
1768 | addEventListener("beforeunload", _this._beforeunloadEventListener, false);
1769 | }
1770 | if (_this.hostname !== "localhost") {
1771 | _this._offlineEventListener = function () {
1772 | _this._onClose("transport close", {
1773 | description: "network connection lost"
1774 | });
1775 | };
1776 | OFFLINE_EVENT_LISTENERS.push(_this._offlineEventListener);
1777 | }
1778 | }
1779 | if (_this.opts.withCredentials) {
1780 | _this._cookieJar = createCookieJar();
1781 | }
1782 | _this._open();
1783 | return _this;
1784 | }
1785 | /**
1786 | * Creates transport of the given type.
1787 | *
1788 | * @param {String} name - transport name
1789 | * @return {Transport}
1790 | * @private
1791 | */
1792 | _inheritsLoose(SocketWithoutUpgrade, _Emitter);
1793 | var _proto = SocketWithoutUpgrade.prototype;
1794 | _proto.createTransport = function createTransport(name) {
1795 | var query = _extends({}, this.opts.query);
1796 | // append engine.io protocol identifier
1797 | query.EIO = protocol$1;
1798 | // transport name
1799 | query.transport = name;
1800 | // session id if we already have one
1801 | if (this.id) query.sid = this.id;
1802 | var opts = _extends({}, this.opts, {
1803 | query: query,
1804 | socket: this,
1805 | hostname: this.hostname,
1806 | secure: this.secure,
1807 | port: this.port
1808 | }, this.opts.transportOptions[name]);
1809 | return new this._transportsByName[name](opts);
1810 | }
1811 | /**
1812 | * Initializes transport to use and starts probe.
1813 | *
1814 | * @private
1815 | */;
1816 | _proto._open = function _open() {
1817 | var _this2 = this;
1818 | if (this.transports.length === 0) {
1819 | // Emit error on next tick so it can be listened to
1820 | this.setTimeoutFn(function () {
1821 | _this2.emitReserved("error", "No transports available");
1822 | }, 0);
1823 | return;
1824 | }
1825 | var transportName = this.opts.rememberUpgrade && SocketWithoutUpgrade.priorWebsocketSuccess && this.transports.indexOf("websocket") !== -1 ? "websocket" : this.transports[0];
1826 | this.readyState = "opening";
1827 | var transport = this.createTransport(transportName);
1828 | transport.open();
1829 | this.setTransport(transport);
1830 | }
1831 | /**
1832 | * Sets the current transport. Disables the existing one (if any).
1833 | *
1834 | * @private
1835 | */;
1836 | _proto.setTransport = function setTransport(transport) {
1837 | var _this3 = this;
1838 | if (this.transport) {
1839 | this.transport.removeAllListeners();
1840 | }
1841 | // set up transport
1842 | this.transport = transport;
1843 | // set up transport listeners
1844 | transport.on("drain", this._onDrain.bind(this)).on("packet", this._onPacket.bind(this)).on("error", this._onError.bind(this)).on("close", function (reason) {
1845 | return _this3._onClose("transport close", reason);
1846 | });
1847 | }
1848 | /**
1849 | * Called when connection is deemed open.
1850 | *
1851 | * @private
1852 | */;
1853 | _proto.onOpen = function onOpen() {
1854 | this.readyState = "open";
1855 | SocketWithoutUpgrade.priorWebsocketSuccess = "websocket" === this.transport.name;
1856 | this.emitReserved("open");
1857 | this.flush();
1858 | }
1859 | /**
1860 | * Handles a packet.
1861 | *
1862 | * @private
1863 | */;
1864 | _proto._onPacket = function _onPacket(packet) {
1865 | if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
1866 | this.emitReserved("packet", packet);
1867 | // Socket is live - any packet counts
1868 | this.emitReserved("heartbeat");
1869 | switch (packet.type) {
1870 | case "open":
1871 | this.onHandshake(JSON.parse(packet.data));
1872 | break;
1873 | case "ping":
1874 | this._sendPacket("pong");
1875 | this.emitReserved("ping");
1876 | this.emitReserved("pong");
1877 | this._resetPingTimeout();
1878 | break;
1879 | case "error":
1880 | var err = new Error("server error");
1881 | // @ts-ignore
1882 | err.code = packet.data;
1883 | this._onError(err);
1884 | break;
1885 | case "message":
1886 | this.emitReserved("data", packet.data);
1887 | this.emitReserved("message", packet.data);
1888 | break;
1889 | }
1890 | }
1891 | }
1892 | /**
1893 | * Called upon handshake completion.
1894 | *
1895 | * @param {Object} data - handshake obj
1896 | * @private
1897 | */;
1898 | _proto.onHandshake = function onHandshake(data) {
1899 | this.emitReserved("handshake", data);
1900 | this.id = data.sid;
1901 | this.transport.query.sid = data.sid;
1902 | this._pingInterval = data.pingInterval;
1903 | this._pingTimeout = data.pingTimeout;
1904 | this._maxPayload = data.maxPayload;
1905 | this.onOpen();
1906 | // In case open handler closes socket
1907 | if ("closed" === this.readyState) return;
1908 | this._resetPingTimeout();
1909 | }
1910 | /**
1911 | * Sets and resets ping timeout timer based on server pings.
1912 | *
1913 | * @private
1914 | */;
1915 | _proto._resetPingTimeout = function _resetPingTimeout() {
1916 | var _this4 = this;
1917 | this.clearTimeoutFn(this._pingTimeoutTimer);
1918 | var delay = this._pingInterval + this._pingTimeout;
1919 | this._pingTimeoutTime = Date.now() + delay;
1920 | this._pingTimeoutTimer = this.setTimeoutFn(function () {
1921 | _this4._onClose("ping timeout");
1922 | }, delay);
1923 | if (this.opts.autoUnref) {
1924 | this._pingTimeoutTimer.unref();
1925 | }
1926 | }
1927 | /**
1928 | * Called on `drain` event
1929 | *
1930 | * @private
1931 | */;
1932 | _proto._onDrain = function _onDrain() {
1933 | this.writeBuffer.splice(0, this._prevBufferLen);
1934 | // setting prevBufferLen = 0 is very important
1935 | // for example, when upgrading, upgrade packet is sent over,
1936 | // and a nonzero prevBufferLen could cause problems on `drain`
1937 | this._prevBufferLen = 0;
1938 | if (0 === this.writeBuffer.length) {
1939 | this.emitReserved("drain");
1940 | } else {
1941 | this.flush();
1942 | }
1943 | }
1944 | /**
1945 | * Flush write buffers.
1946 | *
1947 | * @private
1948 | */;
1949 | _proto.flush = function flush() {
1950 | if ("closed" !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length) {
1951 | var packets = this._getWritablePackets();
1952 | this.transport.send(packets);
1953 | // keep track of current length of writeBuffer
1954 | // splice writeBuffer and callbackBuffer on `drain`
1955 | this._prevBufferLen = packets.length;
1956 | this.emitReserved("flush");
1957 | }
1958 | }
1959 | /**
1960 | * Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP
1961 | * long-polling)
1962 | *
1963 | * @private
1964 | */;
1965 | _proto._getWritablePackets = function _getWritablePackets() {
1966 | var shouldCheckPayloadSize = this._maxPayload && this.transport.name === "polling" && this.writeBuffer.length > 1;
1967 | if (!shouldCheckPayloadSize) {
1968 | return this.writeBuffer;
1969 | }
1970 | var payloadSize = 1; // first packet type
1971 | for (var i = 0; i < this.writeBuffer.length; i++) {
1972 | var data = this.writeBuffer[i].data;
1973 | if (data) {
1974 | payloadSize += byteLength(data);
1975 | }
1976 | if (i > 0 && payloadSize > this._maxPayload) {
1977 | return this.writeBuffer.slice(0, i);
1978 | }
1979 | payloadSize += 2; // separator + packet type
1980 | }
1981 | return this.writeBuffer;
1982 | }
1983 | /**
1984 | * Checks whether the heartbeat timer has expired but the socket has not yet been notified.
1985 | *
1986 | * Note: this method is private for now because it does not really fit the WebSocket API, but if we put it in the
1987 | * `write()` method then the message would not be buffered by the Socket.IO client.
1988 | *
1989 | * @return {boolean}
1990 | * @private
1991 | */
1992 | /* private */;
1993 | _proto._hasPingExpired = function _hasPingExpired() {
1994 | var _this5 = this;
1995 | if (!this._pingTimeoutTime) return true;
1996 | var hasExpired = Date.now() > this._pingTimeoutTime;
1997 | if (hasExpired) {
1998 | this._pingTimeoutTime = 0;
1999 | nextTick(function () {
2000 | _this5._onClose("ping timeout");
2001 | }, this.setTimeoutFn);
2002 | }
2003 | return hasExpired;
2004 | }
2005 | /**
2006 | * Sends a message.
2007 | *
2008 | * @param {String} msg - message.
2009 | * @param {Object} options.
2010 | * @param {Function} fn - callback function.
2011 | * @return {Socket} for chaining.
2012 | */;
2013 | _proto.write = function write(msg, options, fn) {
2014 | this._sendPacket("message", msg, options, fn);
2015 | return this;
2016 | }
2017 | /**
2018 | * Sends a message. Alias of {@link Socket#write}.
2019 | *
2020 | * @param {String} msg - message.
2021 | * @param {Object} options.
2022 | * @param {Function} fn - callback function.
2023 | * @return {Socket} for chaining.
2024 | */;
2025 | _proto.send = function send(msg, options, fn) {
2026 | this._sendPacket("message", msg, options, fn);
2027 | return this;
2028 | }
2029 | /**
2030 | * Sends a packet.
2031 | *
2032 | * @param {String} type: packet type.
2033 | * @param {String} data.
2034 | * @param {Object} options.
2035 | * @param {Function} fn - callback function.
2036 | * @private
2037 | */;
2038 | _proto._sendPacket = function _sendPacket(type, data, options, fn) {
2039 | if ("function" === typeof data) {
2040 | fn = data;
2041 | data = undefined;
2042 | }
2043 | if ("function" === typeof options) {
2044 | fn = options;
2045 | options = null;
2046 | }
2047 | if ("closing" === this.readyState || "closed" === this.readyState) {
2048 | return;
2049 | }
2050 | options = options || {};
2051 | options.compress = false !== options.compress;
2052 | var packet = {
2053 | type: type,
2054 | data: data,
2055 | options: options
2056 | };
2057 | this.emitReserved("packetCreate", packet);
2058 | this.writeBuffer.push(packet);
2059 | if (fn) this.once("flush", fn);
2060 | this.flush();
2061 | }
2062 | /**
2063 | * Closes the connection.
2064 | */;
2065 | _proto.close = function close() {
2066 | var _this6 = this;
2067 | var close = function close() {
2068 | _this6._onClose("forced close");
2069 | _this6.transport.close();
2070 | };
2071 | var cleanupAndClose = function cleanupAndClose() {
2072 | _this6.off("upgrade", cleanupAndClose);
2073 | _this6.off("upgradeError", cleanupAndClose);
2074 | close();
2075 | };
2076 | var waitForUpgrade = function waitForUpgrade() {
2077 | // wait for upgrade to finish since we can't send packets while pausing a transport
2078 | _this6.once("upgrade", cleanupAndClose);
2079 | _this6.once("upgradeError", cleanupAndClose);
2080 | };
2081 | if ("opening" === this.readyState || "open" === this.readyState) {
2082 | this.readyState = "closing";
2083 | if (this.writeBuffer.length) {
2084 | this.once("drain", function () {
2085 | if (_this6.upgrading) {
2086 | waitForUpgrade();
2087 | } else {
2088 | close();
2089 | }
2090 | });
2091 | } else if (this.upgrading) {
2092 | waitForUpgrade();
2093 | } else {
2094 | close();
2095 | }
2096 | }
2097 | return this;
2098 | }
2099 | /**
2100 | * Called upon transport error
2101 | *
2102 | * @private
2103 | */;
2104 | _proto._onError = function _onError(err) {
2105 | SocketWithoutUpgrade.priorWebsocketSuccess = false;
2106 | if (this.opts.tryAllTransports && this.transports.length > 1 && this.readyState === "opening") {
2107 | this.transports.shift();
2108 | return this._open();
2109 | }
2110 | this.emitReserved("error", err);
2111 | this._onClose("transport error", err);
2112 | }
2113 | /**
2114 | * Called upon transport close.
2115 | *
2116 | * @private
2117 | */;
2118 | _proto._onClose = function _onClose(reason, description) {
2119 | if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
2120 | // clear timers
2121 | this.clearTimeoutFn(this._pingTimeoutTimer);
2122 | // stop event from firing again for transport
2123 | this.transport.removeAllListeners("close");
2124 | // ensure transport won't stay open
2125 | this.transport.close();
2126 | // ignore further transport communication
2127 | this.transport.removeAllListeners();
2128 | if (withEventListeners) {
2129 | if (this._beforeunloadEventListener) {
2130 | removeEventListener("beforeunload", this._beforeunloadEventListener, false);
2131 | }
2132 | if (this._offlineEventListener) {
2133 | var i = OFFLINE_EVENT_LISTENERS.indexOf(this._offlineEventListener);
2134 | if (i !== -1) {
2135 | OFFLINE_EVENT_LISTENERS.splice(i, 1);
2136 | }
2137 | }
2138 | }
2139 | // set ready state
2140 | this.readyState = "closed";
2141 | // clear session id
2142 | this.id = null;
2143 | // emit close event
2144 | this.emitReserved("close", reason, description);
2145 | // clean buffers after, so users can still
2146 | // grab the buffers on `close` event
2147 | this.writeBuffer = [];
2148 | this._prevBufferLen = 0;
2149 | }
2150 | };
2151 | return SocketWithoutUpgrade;
2152 | }(Emitter);
2153 | SocketWithoutUpgrade.protocol = protocol$1;
2154 | /**
2155 | * This class provides a WebSocket-like interface to connect to an Engine.IO server. The connection will be established
2156 | * with one of the available low-level transports, like HTTP long-polling, WebSocket or WebTransport.
2157 | *
2158 | * This class comes with an upgrade mechanism, which means that once the connection is established with the first
2159 | * low-level transport, it will try to upgrade to a better transport.
2160 | *
2161 | * In order to allow tree-shaking, there are no transports included, that's why the `transports` option is mandatory.
2162 | *
2163 | * @example
2164 | * import { SocketWithUpgrade, WebSocket } from "engine.io-client";
2165 | *
2166 | * const socket = new SocketWithUpgrade({
2167 | * transports: [WebSocket]
2168 | * });
2169 | *
2170 | * socket.on("open", () => {
2171 | * socket.send("hello");
2172 | * });
2173 | *
2174 | * @see SocketWithoutUpgrade
2175 | * @see Socket
2176 | */
2177 | var SocketWithUpgrade = /*#__PURE__*/function (_SocketWithoutUpgrade) {
2178 | function SocketWithUpgrade() {
2179 | var _this7;
2180 | _this7 = _SocketWithoutUpgrade.apply(this, arguments) || this;
2181 | _this7._upgrades = [];
2182 | return _this7;
2183 | }
2184 | _inheritsLoose(SocketWithUpgrade, _SocketWithoutUpgrade);
2185 | var _proto2 = SocketWithUpgrade.prototype;
2186 | _proto2.onOpen = function onOpen() {
2187 | _SocketWithoutUpgrade.prototype.onOpen.call(this);
2188 | if ("open" === this.readyState && this.opts.upgrade) {
2189 | for (var i = 0; i < this._upgrades.length; i++) {
2190 | this._probe(this._upgrades[i]);
2191 | }
2192 | }
2193 | }
2194 | /**
2195 | * Probes a transport.
2196 | *
2197 | * @param {String} name - transport name
2198 | * @private
2199 | */;
2200 | _proto2._probe = function _probe(name) {
2201 | var _this8 = this;
2202 | var transport = this.createTransport(name);
2203 | var failed = false;
2204 | SocketWithoutUpgrade.priorWebsocketSuccess = false;
2205 | var onTransportOpen = function onTransportOpen() {
2206 | if (failed) return;
2207 | transport.send([{
2208 | type: "ping",
2209 | data: "probe"
2210 | }]);
2211 | transport.once("packet", function (msg) {
2212 | if (failed) return;
2213 | if ("pong" === msg.type && "probe" === msg.data) {
2214 | _this8.upgrading = true;
2215 | _this8.emitReserved("upgrading", transport);
2216 | if (!transport) return;
2217 | SocketWithoutUpgrade.priorWebsocketSuccess = "websocket" === transport.name;
2218 | _this8.transport.pause(function () {
2219 | if (failed) return;
2220 | if ("closed" === _this8.readyState) return;
2221 | cleanup();
2222 | _this8.setTransport(transport);
2223 | transport.send([{
2224 | type: "upgrade"
2225 | }]);
2226 | _this8.emitReserved("upgrade", transport);
2227 | transport = null;
2228 | _this8.upgrading = false;
2229 | _this8.flush();
2230 | });
2231 | } else {
2232 | var err = new Error("probe error");
2233 | // @ts-ignore
2234 | err.transport = transport.name;
2235 | _this8.emitReserved("upgradeError", err);
2236 | }
2237 | });
2238 | };
2239 | function freezeTransport() {
2240 | if (failed) return;
2241 | // Any callback called by transport should be ignored since now
2242 | failed = true;
2243 | cleanup();
2244 | transport.close();
2245 | transport = null;
2246 | }
2247 | // Handle any error that happens while probing
2248 | var onerror = function onerror(err) {
2249 | var error = new Error("probe error: " + err);
2250 | // @ts-ignore
2251 | error.transport = transport.name;
2252 | freezeTransport();
2253 | _this8.emitReserved("upgradeError", error);
2254 | };
2255 | function onTransportClose() {
2256 | onerror("transport closed");
2257 | }
2258 | // When the socket is closed while we're probing
2259 | function onclose() {
2260 | onerror("socket closed");
2261 | }
2262 | // When the socket is upgraded while we're probing
2263 | function onupgrade(to) {
2264 | if (transport && to.name !== transport.name) {
2265 | freezeTransport();
2266 | }
2267 | }
2268 | // Remove all listeners on the transport and on self
2269 | var cleanup = function cleanup() {
2270 | transport.removeListener("open", onTransportOpen);
2271 | transport.removeListener("error", onerror);
2272 | transport.removeListener("close", onTransportClose);
2273 | _this8.off("close", onclose);
2274 | _this8.off("upgrading", onupgrade);
2275 | };
2276 | transport.once("open", onTransportOpen);
2277 | transport.once("error", onerror);
2278 | transport.once("close", onTransportClose);
2279 | this.once("close", onclose);
2280 | this.once("upgrading", onupgrade);
2281 | if (this._upgrades.indexOf("webtransport") !== -1 && name !== "webtransport") {
2282 | // favor WebTransport
2283 | this.setTimeoutFn(function () {
2284 | if (!failed) {
2285 | transport.open();
2286 | }
2287 | }, 200);
2288 | } else {
2289 | transport.open();
2290 | }
2291 | };
2292 | _proto2.onHandshake = function onHandshake(data) {
2293 | this._upgrades = this._filterUpgrades(data.upgrades);
2294 | _SocketWithoutUpgrade.prototype.onHandshake.call(this, data);
2295 | }
2296 | /**
2297 | * Filters upgrades, returning only those matching client transports.
2298 | *
2299 | * @param {Array} upgrades - server upgrades
2300 | * @private
2301 | */;
2302 | _proto2._filterUpgrades = function _filterUpgrades(upgrades) {
2303 | var filteredUpgrades = [];
2304 | for (var i = 0; i < upgrades.length; i++) {
2305 | if (~this.transports.indexOf(upgrades[i])) filteredUpgrades.push(upgrades[i]);
2306 | }
2307 | return filteredUpgrades;
2308 | };
2309 | return SocketWithUpgrade;
2310 | }(SocketWithoutUpgrade);
2311 | /**
2312 | * This class provides a WebSocket-like interface to connect to an Engine.IO server. The connection will be established
2313 | * with one of the available low-level transports, like HTTP long-polling, WebSocket or WebTransport.
2314 | *
2315 | * This class comes with an upgrade mechanism, which means that once the connection is established with the first
2316 | * low-level transport, it will try to upgrade to a better transport.
2317 | *
2318 | * @example
2319 | * import { Socket } from "engine.io-client";
2320 | *
2321 | * const socket = new Socket();
2322 | *
2323 | * socket.on("open", () => {
2324 | * socket.send("hello");
2325 | * });
2326 | *
2327 | * @see SocketWithoutUpgrade
2328 | * @see SocketWithUpgrade
2329 | */
2330 | var Socket$1 = /*#__PURE__*/function (_SocketWithUpgrade) {
2331 | function Socket(uri) {
2332 | var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
2333 | var o = _typeof(uri) === "object" ? uri : opts;
2334 | if (!o.transports || o.transports && typeof o.transports[0] === "string") {
2335 | o.transports = (o.transports || ["polling", "websocket", "webtransport"]).map(function (transportName) {
2336 | return transports[transportName];
2337 | }).filter(function (t) {
2338 | return !!t;
2339 | });
2340 | }
2341 | return _SocketWithUpgrade.call(this, uri, o) || this;
2342 | }
2343 | _inheritsLoose(Socket, _SocketWithUpgrade);
2344 | return Socket;
2345 | }(SocketWithUpgrade);
2346 |
2347 | Socket$1.protocol;
2348 |
2349 | function getDefaultExportFromCjs (x) {
2350 | return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
2351 | }
2352 |
2353 | var browser = {exports: {}};
2354 |
2355 | var ms;
2356 | var hasRequiredMs;
2357 | function requireMs() {
2358 | if (hasRequiredMs) return ms;
2359 | hasRequiredMs = 1;
2360 | var s = 1000;
2361 | var m = s * 60;
2362 | var h = m * 60;
2363 | var d = h * 24;
2364 | var w = d * 7;
2365 | var y = d * 365.25;
2366 |
2367 | /**
2368 | * Parse or format the given `val`.
2369 | *
2370 | * Options:
2371 | *
2372 | * - `long` verbose formatting [false]
2373 | *
2374 | * @param {String|Number} val
2375 | * @param {Object} [options]
2376 | * @throws {Error} throw an error if val is not a non-empty string or a number
2377 | * @return {String|Number}
2378 | * @api public
2379 | */
2380 |
2381 | ms = function ms(val, options) {
2382 | options = options || {};
2383 | var type = _typeof(val);
2384 | if (type === 'string' && val.length > 0) {
2385 | return parse(val);
2386 | } else if (type === 'number' && isFinite(val)) {
2387 | return options["long"] ? fmtLong(val) : fmtShort(val);
2388 | }
2389 | throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val));
2390 | };
2391 |
2392 | /**
2393 | * Parse the given `str` and return milliseconds.
2394 | *
2395 | * @param {String} str
2396 | * @return {Number}
2397 | * @api private
2398 | */
2399 |
2400 | function parse(str) {
2401 | str = String(str);
2402 | if (str.length > 100) {
2403 | return;
2404 | }
2405 | var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(str);
2406 | if (!match) {
2407 | return;
2408 | }
2409 | var n = parseFloat(match[1]);
2410 | var type = (match[2] || 'ms').toLowerCase();
2411 | switch (type) {
2412 | case 'years':
2413 | case 'year':
2414 | case 'yrs':
2415 | case 'yr':
2416 | case 'y':
2417 | return n * y;
2418 | case 'weeks':
2419 | case 'week':
2420 | case 'w':
2421 | return n * w;
2422 | case 'days':
2423 | case 'day':
2424 | case 'd':
2425 | return n * d;
2426 | case 'hours':
2427 | case 'hour':
2428 | case 'hrs':
2429 | case 'hr':
2430 | case 'h':
2431 | return n * h;
2432 | case 'minutes':
2433 | case 'minute':
2434 | case 'mins':
2435 | case 'min':
2436 | case 'm':
2437 | return n * m;
2438 | case 'seconds':
2439 | case 'second':
2440 | case 'secs':
2441 | case 'sec':
2442 | case 's':
2443 | return n * s;
2444 | case 'milliseconds':
2445 | case 'millisecond':
2446 | case 'msecs':
2447 | case 'msec':
2448 | case 'ms':
2449 | return n;
2450 | default:
2451 | return undefined;
2452 | }
2453 | }
2454 |
2455 | /**
2456 | * Short format for `ms`.
2457 | *
2458 | * @param {Number} ms
2459 | * @return {String}
2460 | * @api private
2461 | */
2462 |
2463 | function fmtShort(ms) {
2464 | var msAbs = Math.abs(ms);
2465 | if (msAbs >= d) {
2466 | return Math.round(ms / d) + 'd';
2467 | }
2468 | if (msAbs >= h) {
2469 | return Math.round(ms / h) + 'h';
2470 | }
2471 | if (msAbs >= m) {
2472 | return Math.round(ms / m) + 'm';
2473 | }
2474 | if (msAbs >= s) {
2475 | return Math.round(ms / s) + 's';
2476 | }
2477 | return ms + 'ms';
2478 | }
2479 |
2480 | /**
2481 | * Long format for `ms`.
2482 | *
2483 | * @param {Number} ms
2484 | * @return {String}
2485 | * @api private
2486 | */
2487 |
2488 | function fmtLong(ms) {
2489 | var msAbs = Math.abs(ms);
2490 | if (msAbs >= d) {
2491 | return plural(ms, msAbs, d, 'day');
2492 | }
2493 | if (msAbs >= h) {
2494 | return plural(ms, msAbs, h, 'hour');
2495 | }
2496 | if (msAbs >= m) {
2497 | return plural(ms, msAbs, m, 'minute');
2498 | }
2499 | if (msAbs >= s) {
2500 | return plural(ms, msAbs, s, 'second');
2501 | }
2502 | return ms + ' ms';
2503 | }
2504 |
2505 | /**
2506 | * Pluralization helper.
2507 | */
2508 |
2509 | function plural(ms, msAbs, n, name) {
2510 | var isPlural = msAbs >= n * 1.5;
2511 | return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
2512 | }
2513 | return ms;
2514 | }
2515 |
2516 | /**
2517 | * This is the common logic for both the Node.js and web browser
2518 | * implementations of `debug()`.
2519 | */
2520 |
2521 | function setup(env) {
2522 | createDebug.debug = createDebug;
2523 | createDebug["default"] = createDebug;
2524 | createDebug.coerce = coerce;
2525 | createDebug.disable = disable;
2526 | createDebug.enable = enable;
2527 | createDebug.enabled = enabled;
2528 | createDebug.humanize = requireMs();
2529 | createDebug.destroy = destroy;
2530 | Object.keys(env).forEach(function (key) {
2531 | createDebug[key] = env[key];
2532 | });
2533 |
2534 | /**
2535 | * The currently active debug mode names, and names to skip.
2536 | */
2537 |
2538 | createDebug.names = [];
2539 | createDebug.skips = [];
2540 |
2541 | /**
2542 | * Map of special "%n" handling functions, for the debug "format" argument.
2543 | *
2544 | * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
2545 | */
2546 | createDebug.formatters = {};
2547 |
2548 | /**
2549 | * Selects a color for a debug namespace
2550 | * @param {String} namespace The namespace string for the debug instance to be colored
2551 | * @return {Number|String} An ANSI color code for the given namespace
2552 | * @api private
2553 | */
2554 | function selectColor(namespace) {
2555 | var hash = 0;
2556 | for (var i = 0; i < namespace.length; i++) {
2557 | hash = (hash << 5) - hash + namespace.charCodeAt(i);
2558 | hash |= 0; // Convert to 32bit integer
2559 | }
2560 | return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
2561 | }
2562 | createDebug.selectColor = selectColor;
2563 |
2564 | /**
2565 | * Create a debugger with the given `namespace`.
2566 | *
2567 | * @param {String} namespace
2568 | * @return {Function}
2569 | * @api public
2570 | */
2571 | function createDebug(namespace) {
2572 | var prevTime;
2573 | var enableOverride = null;
2574 | var namespacesCache;
2575 | var enabledCache;
2576 | function debug() {
2577 | for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
2578 | args[_key] = arguments[_key];
2579 | }
2580 | // Disabled?
2581 | if (!debug.enabled) {
2582 | return;
2583 | }
2584 | var self = debug;
2585 |
2586 | // Set `diff` timestamp
2587 | var curr = Number(new Date());
2588 | var ms = curr - (prevTime || curr);
2589 | self.diff = ms;
2590 | self.prev = prevTime;
2591 | self.curr = curr;
2592 | prevTime = curr;
2593 | args[0] = createDebug.coerce(args[0]);
2594 | if (typeof args[0] !== 'string') {
2595 | // Anything else let's inspect with %O
2596 | args.unshift('%O');
2597 | }
2598 |
2599 | // Apply any `formatters` transformations
2600 | var index = 0;
2601 | args[0] = args[0].replace(/%([a-zA-Z%])/g, function (match, format) {
2602 | // If we encounter an escaped % then don't increase the array index
2603 | if (match === '%%') {
2604 | return '%';
2605 | }
2606 | index++;
2607 | var formatter = createDebug.formatters[format];
2608 | if (typeof formatter === 'function') {
2609 | var val = args[index];
2610 | match = formatter.call(self, val);
2611 |
2612 | // Now we need to remove `args[index]` since it's inlined in the `format`
2613 | args.splice(index, 1);
2614 | index--;
2615 | }
2616 | return match;
2617 | });
2618 |
2619 | // Apply env-specific formatting (colors, etc.)
2620 | createDebug.formatArgs.call(self, args);
2621 | var logFn = self.log || createDebug.log;
2622 | logFn.apply(self, args);
2623 | }
2624 | debug.namespace = namespace;
2625 | debug.useColors = createDebug.useColors();
2626 | debug.color = createDebug.selectColor(namespace);
2627 | debug.extend = extend;
2628 | debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.
2629 |
2630 | Object.defineProperty(debug, 'enabled', {
2631 | enumerable: true,
2632 | configurable: false,
2633 | get: function get() {
2634 | if (enableOverride !== null) {
2635 | return enableOverride;
2636 | }
2637 | if (namespacesCache !== createDebug.namespaces) {
2638 | namespacesCache = createDebug.namespaces;
2639 | enabledCache = createDebug.enabled(namespace);
2640 | }
2641 | return enabledCache;
2642 | },
2643 | set: function set(v) {
2644 | enableOverride = v;
2645 | }
2646 | });
2647 |
2648 | // Env-specific initialization logic for debug instances
2649 | if (typeof createDebug.init === 'function') {
2650 | createDebug.init(debug);
2651 | }
2652 | return debug;
2653 | }
2654 | function extend(namespace, delimiter) {
2655 | var newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
2656 | newDebug.log = this.log;
2657 | return newDebug;
2658 | }
2659 |
2660 | /**
2661 | * Enables a debug mode by namespaces. This can include modes
2662 | * separated by a colon and wildcards.
2663 | *
2664 | * @param {String} namespaces
2665 | * @api public
2666 | */
2667 | function enable(namespaces) {
2668 | createDebug.save(namespaces);
2669 | createDebug.namespaces = namespaces;
2670 | createDebug.names = [];
2671 | createDebug.skips = [];
2672 | var i;
2673 | var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
2674 | var len = split.length;
2675 | for (i = 0; i < len; i++) {
2676 | if (!split[i]) {
2677 | // ignore empty strings
2678 | continue;
2679 | }
2680 | namespaces = split[i].replace(/\*/g, '.*?');
2681 | if (namespaces[0] === '-') {
2682 | createDebug.skips.push(new RegExp('^' + namespaces.slice(1) + '$'));
2683 | } else {
2684 | createDebug.names.push(new RegExp('^' + namespaces + '$'));
2685 | }
2686 | }
2687 | }
2688 |
2689 | /**
2690 | * Disable debug output.
2691 | *
2692 | * @return {String} namespaces
2693 | * @api public
2694 | */
2695 | function disable() {
2696 | var namespaces = [].concat(_toConsumableArray(createDebug.names.map(toNamespace)), _toConsumableArray(createDebug.skips.map(toNamespace).map(function (namespace) {
2697 | return '-' + namespace;
2698 | }))).join(',');
2699 | createDebug.enable('');
2700 | return namespaces;
2701 | }
2702 |
2703 | /**
2704 | * Returns true if the given mode name is enabled, false otherwise.
2705 | *
2706 | * @param {String} name
2707 | * @return {Boolean}
2708 | * @api public
2709 | */
2710 | function enabled(name) {
2711 | if (name[name.length - 1] === '*') {
2712 | return true;
2713 | }
2714 | var i;
2715 | var len;
2716 | for (i = 0, len = createDebug.skips.length; i < len; i++) {
2717 | if (createDebug.skips[i].test(name)) {
2718 | return false;
2719 | }
2720 | }
2721 | for (i = 0, len = createDebug.names.length; i < len; i++) {
2722 | if (createDebug.names[i].test(name)) {
2723 | return true;
2724 | }
2725 | }
2726 | return false;
2727 | }
2728 |
2729 | /**
2730 | * Convert regexp to namespace
2731 | *
2732 | * @param {RegExp} regxep
2733 | * @return {String} namespace
2734 | * @api private
2735 | */
2736 | function toNamespace(regexp) {
2737 | return regexp.toString().substring(2, regexp.toString().length - 2).replace(/\.\*\?$/, '*');
2738 | }
2739 |
2740 | /**
2741 | * Coerce `val`.
2742 | *
2743 | * @param {Mixed} val
2744 | * @return {Mixed}
2745 | * @api private
2746 | */
2747 | function coerce(val) {
2748 | if (val instanceof Error) {
2749 | return val.stack || val.message;
2750 | }
2751 | return val;
2752 | }
2753 |
2754 | /**
2755 | * XXX DO NOT USE. This is a temporary stub function.
2756 | * XXX It WILL be removed in the next major release.
2757 | */
2758 | function destroy() {
2759 | console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
2760 | }
2761 | createDebug.enable(createDebug.load());
2762 | return createDebug;
2763 | }
2764 | var common = setup;
2765 |
2766 | /* eslint-env browser */
2767 | browser.exports;
2768 | (function (module, exports) {
2769 | /**
2770 | * This is the web browser implementation of `debug()`.
2771 | */
2772 |
2773 | exports.formatArgs = formatArgs;
2774 | exports.save = save;
2775 | exports.load = load;
2776 | exports.useColors = useColors;
2777 | exports.storage = localstorage();
2778 | exports.destroy = function () {
2779 | var warned = false;
2780 | return function () {
2781 | if (!warned) {
2782 | warned = true;
2783 | console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
2784 | }
2785 | };
2786 | }();
2787 |
2788 | /**
2789 | * Colors.
2790 | */
2791 |
2792 | exports.colors = ['#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC', '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF', '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC', '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF', '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC', '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033', '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366', '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933', '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC', '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF', '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'];
2793 |
2794 | /**
2795 | * Currently only WebKit-based Web Inspectors, Firefox >= v31,
2796 | * and the Firebug extension (any Firefox version) are known
2797 | * to support "%c" CSS customizations.
2798 | *
2799 | * TODO: add a `localStorage` variable to explicitly enable/disable colors
2800 | */
2801 |
2802 | // eslint-disable-next-line complexity
2803 | function useColors() {
2804 | // NB: In an Electron preload script, document will be defined but not fully
2805 | // initialized. Since we know we're in Chrome, we'll just detect this case
2806 | // explicitly
2807 | if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
2808 | return true;
2809 | }
2810 |
2811 | // Internet Explorer and Edge do not support colors.
2812 | if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
2813 | return false;
2814 | }
2815 |
2816 | // Is webkit? http://stackoverflow.com/a/16459606/376773
2817 | // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
2818 | return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance ||
2819 | // Is firebug? http://stackoverflow.com/a/398120/376773
2820 | typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) ||
2821 | // Is firefox >= v31?
2822 | // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
2823 | typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 ||
2824 | // Double check webkit in userAgent just in case we are in a worker
2825 | typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
2826 | }
2827 |
2828 | /**
2829 | * Colorize log arguments if enabled.
2830 | *
2831 | * @api public
2832 | */
2833 |
2834 | function formatArgs(args) {
2835 | args[0] = (this.useColors ? '%c' : '') + this.namespace + (this.useColors ? ' %c' : ' ') + args[0] + (this.useColors ? '%c ' : ' ') + '+' + module.exports.humanize(this.diff);
2836 | if (!this.useColors) {
2837 | return;
2838 | }
2839 | var c = 'color: ' + this.color;
2840 | args.splice(1, 0, c, 'color: inherit');
2841 |
2842 | // The final "%c" is somewhat tricky, because there could be other
2843 | // arguments passed either before or after the %c, so we need to
2844 | // figure out the correct index to insert the CSS into
2845 | var index = 0;
2846 | var lastC = 0;
2847 | args[0].replace(/%[a-zA-Z%]/g, function (match) {
2848 | if (match === '%%') {
2849 | return;
2850 | }
2851 | index++;
2852 | if (match === '%c') {
2853 | // We only are interested in the *last* %c
2854 | // (the user may have provided their own)
2855 | lastC = index;
2856 | }
2857 | });
2858 | args.splice(lastC, 0, c);
2859 | }
2860 |
2861 | /**
2862 | * Invokes `console.debug()` when available.
2863 | * No-op when `console.debug` is not a "function".
2864 | * If `console.debug` is not available, falls back
2865 | * to `console.log`.
2866 | *
2867 | * @api public
2868 | */
2869 | exports.log = console.debug || console.log || function () {};
2870 |
2871 | /**
2872 | * Save `namespaces`.
2873 | *
2874 | * @param {String} namespaces
2875 | * @api private
2876 | */
2877 | function save(namespaces) {
2878 | try {
2879 | if (namespaces) {
2880 | exports.storage.setItem('debug', namespaces);
2881 | } else {
2882 | exports.storage.removeItem('debug');
2883 | }
2884 | } catch (error) {
2885 | // Swallow
2886 | // XXX (@Qix-) should we be logging these?
2887 | }
2888 | }
2889 |
2890 | /**
2891 | * Load `namespaces`.
2892 | *
2893 | * @return {String} returns the previously persisted debug modes
2894 | * @api private
2895 | */
2896 | function load() {
2897 | var r;
2898 | try {
2899 | r = exports.storage.getItem('debug');
2900 | } catch (error) {
2901 | // Swallow
2902 | // XXX (@Qix-) should we be logging these?
2903 | }
2904 |
2905 | // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
2906 | if (!r && typeof process !== 'undefined' && 'env' in process) {
2907 | r = process.env.DEBUG;
2908 | }
2909 | return r;
2910 | }
2911 |
2912 | /**
2913 | * Localstorage attempts to return the localstorage.
2914 | *
2915 | * This is necessary because safari throws
2916 | * when a user disables cookies/localstorage
2917 | * and you attempt to access it.
2918 | *
2919 | * @return {LocalStorage}
2920 | * @api private
2921 | */
2922 |
2923 | function localstorage() {
2924 | try {
2925 | // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
2926 | // The Browser also has localStorage in the global context.
2927 | return localStorage;
2928 | } catch (error) {
2929 | // Swallow
2930 | // XXX (@Qix-) should we be logging these?
2931 | }
2932 | }
2933 | module.exports = common(exports);
2934 | var formatters = module.exports.formatters;
2935 |
2936 | /**
2937 | * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
2938 | */
2939 |
2940 | formatters.j = function (v) {
2941 | try {
2942 | return JSON.stringify(v);
2943 | } catch (error) {
2944 | return '[UnexpectedJSONParseError]: ' + error.message;
2945 | }
2946 | };
2947 | })(browser, browser.exports);
2948 | var browserExports = browser.exports;
2949 | var debugModule = /*@__PURE__*/getDefaultExportFromCjs(browserExports);
2950 |
2951 | var debug$3 = debugModule("socket.io-client:url"); // debug()
2952 | /**
2953 | * URL parser.
2954 | *
2955 | * @param uri - url
2956 | * @param path - the request path of the connection
2957 | * @param loc - An object meant to mimic window.location.
2958 | * Defaults to window.location.
2959 | * @public
2960 | */
2961 | function url(uri) {
2962 | var path = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "";
2963 | var loc = arguments.length > 2 ? arguments[2] : undefined;
2964 | var obj = uri;
2965 | // default to window.location
2966 | loc = loc || typeof location !== "undefined" && location;
2967 | if (null == uri) uri = loc.protocol + "//" + loc.host;
2968 | // relative path support
2969 | if (typeof uri === "string") {
2970 | if ("/" === uri.charAt(0)) {
2971 | if ("/" === uri.charAt(1)) {
2972 | uri = loc.protocol + uri;
2973 | } else {
2974 | uri = loc.host + uri;
2975 | }
2976 | }
2977 | if (!/^(https?|wss?):\/\//.test(uri)) {
2978 | debug$3("protocol-less url %s", uri);
2979 | if ("undefined" !== typeof loc) {
2980 | uri = loc.protocol + "//" + uri;
2981 | } else {
2982 | uri = "https://" + uri;
2983 | }
2984 | }
2985 | // parse
2986 | debug$3("parse %s", uri);
2987 | obj = parse(uri);
2988 | }
2989 | // make sure we treat `localhost:80` and `localhost` equally
2990 | if (!obj.port) {
2991 | if (/^(http|ws)$/.test(obj.protocol)) {
2992 | obj.port = "80";
2993 | } else if (/^(http|ws)s$/.test(obj.protocol)) {
2994 | obj.port = "443";
2995 | }
2996 | }
2997 | obj.path = obj.path || "/";
2998 | var ipv6 = obj.host.indexOf(":") !== -1;
2999 | var host = ipv6 ? "[" + obj.host + "]" : obj.host;
3000 | // define unique id
3001 | obj.id = obj.protocol + "://" + host + ":" + obj.port + path;
3002 | // define href
3003 | obj.href = obj.protocol + "://" + host + (loc && loc.port === obj.port ? "" : ":" + obj.port);
3004 | return obj;
3005 | }
3006 |
3007 | var withNativeArrayBuffer = typeof ArrayBuffer === "function";
3008 | var isView = function isView(obj) {
3009 | return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj.buffer instanceof ArrayBuffer;
3010 | };
3011 | var toString = Object.prototype.toString;
3012 | var withNativeBlob = typeof Blob === "function" || typeof Blob !== "undefined" && toString.call(Blob) === "[object BlobConstructor]";
3013 | var withNativeFile = typeof File === "function" || typeof File !== "undefined" && toString.call(File) === "[object FileConstructor]";
3014 | /**
3015 | * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.
3016 | *
3017 | * @private
3018 | */
3019 | function isBinary(obj) {
3020 | return withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)) || withNativeBlob && obj instanceof Blob || withNativeFile && obj instanceof File;
3021 | }
3022 | function hasBinary(obj, toJSON) {
3023 | if (!obj || _typeof(obj) !== "object") {
3024 | return false;
3025 | }
3026 | if (Array.isArray(obj)) {
3027 | for (var i = 0, l = obj.length; i < l; i++) {
3028 | if (hasBinary(obj[i])) {
3029 | return true;
3030 | }
3031 | }
3032 | return false;
3033 | }
3034 | if (isBinary(obj)) {
3035 | return true;
3036 | }
3037 | if (obj.toJSON && typeof obj.toJSON === "function" && arguments.length === 1) {
3038 | return hasBinary(obj.toJSON(), true);
3039 | }
3040 | for (var key in obj) {
3041 | if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
3042 | return true;
3043 | }
3044 | }
3045 | return false;
3046 | }
3047 |
3048 | /**
3049 | * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.
3050 | *
3051 | * @param {Object} packet - socket.io event packet
3052 | * @return {Object} with deconstructed packet and list of buffers
3053 | * @public
3054 | */
3055 | function deconstructPacket(packet) {
3056 | var buffers = [];
3057 | var packetData = packet.data;
3058 | var pack = packet;
3059 | pack.data = _deconstructPacket(packetData, buffers);
3060 | pack.attachments = buffers.length; // number of binary 'attachments'
3061 | return {
3062 | packet: pack,
3063 | buffers: buffers
3064 | };
3065 | }
3066 | function _deconstructPacket(data, buffers) {
3067 | if (!data) return data;
3068 | if (isBinary(data)) {
3069 | var placeholder = {
3070 | _placeholder: true,
3071 | num: buffers.length
3072 | };
3073 | buffers.push(data);
3074 | return placeholder;
3075 | } else if (Array.isArray(data)) {
3076 | var newData = new Array(data.length);
3077 | for (var i = 0; i < data.length; i++) {
3078 | newData[i] = _deconstructPacket(data[i], buffers);
3079 | }
3080 | return newData;
3081 | } else if (_typeof(data) === "object" && !(data instanceof Date)) {
3082 | var _newData = {};
3083 | for (var key in data) {
3084 | if (Object.prototype.hasOwnProperty.call(data, key)) {
3085 | _newData[key] = _deconstructPacket(data[key], buffers);
3086 | }
3087 | }
3088 | return _newData;
3089 | }
3090 | return data;
3091 | }
3092 | /**
3093 | * Reconstructs a binary packet from its placeholder packet and buffers
3094 | *
3095 | * @param {Object} packet - event packet with placeholders
3096 | * @param {Array} buffers - binary buffers to put in placeholder positions
3097 | * @return {Object} reconstructed packet
3098 | * @public
3099 | */
3100 | function reconstructPacket(packet, buffers) {
3101 | packet.data = _reconstructPacket(packet.data, buffers);
3102 | delete packet.attachments; // no longer useful
3103 | return packet;
3104 | }
3105 | function _reconstructPacket(data, buffers) {
3106 | if (!data) return data;
3107 | if (data && data._placeholder === true) {
3108 | var isIndexValid = typeof data.num === "number" && data.num >= 0 && data.num < buffers.length;
3109 | if (isIndexValid) {
3110 | return buffers[data.num]; // appropriate buffer (should be natural order anyway)
3111 | } else {
3112 | throw new Error("illegal attachments");
3113 | }
3114 | } else if (Array.isArray(data)) {
3115 | for (var i = 0; i < data.length; i++) {
3116 | data[i] = _reconstructPacket(data[i], buffers);
3117 | }
3118 | } else if (_typeof(data) === "object") {
3119 | for (var key in data) {
3120 | if (Object.prototype.hasOwnProperty.call(data, key)) {
3121 | data[key] = _reconstructPacket(data[key], buffers);
3122 | }
3123 | }
3124 | }
3125 | return data;
3126 | }
3127 |
3128 | /**
3129 | * These strings must not be used as event names, as they have a special meaning.
3130 | */
3131 | var RESERVED_EVENTS$1 = ["connect",
3132 | // used on the client side
3133 | "connect_error",
3134 | // used on the client side
3135 | "disconnect",
3136 | // used on both sides
3137 | "disconnecting",
3138 | // used on the server side
3139 | "newListener",
3140 | // used by the Node.js EventEmitter
3141 | "removeListener" // used by the Node.js EventEmitter
3142 | ];
3143 | /**
3144 | * Protocol version.
3145 | *
3146 | * @public
3147 | */
3148 | var protocol = 5;
3149 | var PacketType;
3150 | (function (PacketType) {
3151 | PacketType[PacketType["CONNECT"] = 0] = "CONNECT";
3152 | PacketType[PacketType["DISCONNECT"] = 1] = "DISCONNECT";
3153 | PacketType[PacketType["EVENT"] = 2] = "EVENT";
3154 | PacketType[PacketType["ACK"] = 3] = "ACK";
3155 | PacketType[PacketType["CONNECT_ERROR"] = 4] = "CONNECT_ERROR";
3156 | PacketType[PacketType["BINARY_EVENT"] = 5] = "BINARY_EVENT";
3157 | PacketType[PacketType["BINARY_ACK"] = 6] = "BINARY_ACK";
3158 | })(PacketType || (PacketType = {}));
3159 | /**
3160 | * A socket.io Encoder instance
3161 | */
3162 | var Encoder = /*#__PURE__*/function () {
3163 | /**
3164 | * Encoder constructor
3165 | *
3166 | * @param {function} replacer - custom replacer to pass down to JSON.parse
3167 | */
3168 | function Encoder(replacer) {
3169 | this.replacer = replacer;
3170 | }
3171 | /**
3172 | * Encode a packet as a single string if non-binary, or as a
3173 | * buffer sequence, depending on packet type.
3174 | *
3175 | * @param {Object} obj - packet object
3176 | */
3177 | var _proto = Encoder.prototype;
3178 | _proto.encode = function encode(obj) {
3179 | if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {
3180 | if (hasBinary(obj)) {
3181 | return this.encodeAsBinary({
3182 | type: obj.type === PacketType.EVENT ? PacketType.BINARY_EVENT : PacketType.BINARY_ACK,
3183 | nsp: obj.nsp,
3184 | data: obj.data,
3185 | id: obj.id
3186 | });
3187 | }
3188 | }
3189 | return [this.encodeAsString(obj)];
3190 | }
3191 | /**
3192 | * Encode packet as string.
3193 | */;
3194 | _proto.encodeAsString = function encodeAsString(obj) {
3195 | // first is type
3196 | var str = "" + obj.type;
3197 | // attachments if we have them
3198 | if (obj.type === PacketType.BINARY_EVENT || obj.type === PacketType.BINARY_ACK) {
3199 | str += obj.attachments + "-";
3200 | }
3201 | // if we have a namespace other than `/`
3202 | // we append it followed by a comma `,`
3203 | if (obj.nsp && "/" !== obj.nsp) {
3204 | str += obj.nsp + ",";
3205 | }
3206 | // immediately followed by the id
3207 | if (null != obj.id) {
3208 | str += obj.id;
3209 | }
3210 | // json data
3211 | if (null != obj.data) {
3212 | str += JSON.stringify(obj.data, this.replacer);
3213 | }
3214 | return str;
3215 | }
3216 | /**
3217 | * Encode packet as 'buffer sequence' by removing blobs, and
3218 | * deconstructing packet into object with placeholders and
3219 | * a list of buffers.
3220 | */;
3221 | _proto.encodeAsBinary = function encodeAsBinary(obj) {
3222 | var deconstruction = deconstructPacket(obj);
3223 | var pack = this.encodeAsString(deconstruction.packet);
3224 | var buffers = deconstruction.buffers;
3225 | buffers.unshift(pack); // add packet info to beginning of data list
3226 | return buffers; // write all the buffers
3227 | };
3228 | return Encoder;
3229 | }();
3230 | /**
3231 | * A socket.io Decoder instance
3232 | *
3233 | * @return {Object} decoder
3234 | */
3235 | var Decoder = /*#__PURE__*/function (_Emitter) {
3236 | /**
3237 | * Decoder constructor
3238 | *
3239 | * @param {function} reviver - custom reviver to pass down to JSON.stringify
3240 | */
3241 | function Decoder(reviver) {
3242 | var _this;
3243 | _this = _Emitter.call(this) || this;
3244 | _this.reviver = reviver;
3245 | return _this;
3246 | }
3247 | /**
3248 | * Decodes an encoded packet string into packet JSON.
3249 | *
3250 | * @param {String} obj - encoded packet
3251 | */
3252 | _inheritsLoose(Decoder, _Emitter);
3253 | var _proto2 = Decoder.prototype;
3254 | _proto2.add = function add(obj) {
3255 | var packet;
3256 | if (typeof obj === "string") {
3257 | if (this.reconstructor) {
3258 | throw new Error("got plaintext data when reconstructing a packet");
3259 | }
3260 | packet = this.decodeString(obj);
3261 | var isBinaryEvent = packet.type === PacketType.BINARY_EVENT;
3262 | if (isBinaryEvent || packet.type === PacketType.BINARY_ACK) {
3263 | packet.type = isBinaryEvent ? PacketType.EVENT : PacketType.ACK;
3264 | // binary packet's json
3265 | this.reconstructor = new BinaryReconstructor(packet);
3266 | // no attachments, labeled binary but no binary data to follow
3267 | if (packet.attachments === 0) {
3268 | _Emitter.prototype.emitReserved.call(this, "decoded", packet);
3269 | }
3270 | } else {
3271 | // non-binary full packet
3272 | _Emitter.prototype.emitReserved.call(this, "decoded", packet);
3273 | }
3274 | } else if (isBinary(obj) || obj.base64) {
3275 | // raw binary data
3276 | if (!this.reconstructor) {
3277 | throw new Error("got binary data when not reconstructing a packet");
3278 | } else {
3279 | packet = this.reconstructor.takeBinaryData(obj);
3280 | if (packet) {
3281 | // received final buffer
3282 | this.reconstructor = null;
3283 | _Emitter.prototype.emitReserved.call(this, "decoded", packet);
3284 | }
3285 | }
3286 | } else {
3287 | throw new Error("Unknown type: " + obj);
3288 | }
3289 | }
3290 | /**
3291 | * Decode a packet String (JSON data)
3292 | *
3293 | * @param {String} str
3294 | * @return {Object} packet
3295 | */;
3296 | _proto2.decodeString = function decodeString(str) {
3297 | var i = 0;
3298 | // look up type
3299 | var p = {
3300 | type: Number(str.charAt(0))
3301 | };
3302 | if (PacketType[p.type] === undefined) {
3303 | throw new Error("unknown packet type " + p.type);
3304 | }
3305 | // look up attachments if type binary
3306 | if (p.type === PacketType.BINARY_EVENT || p.type === PacketType.BINARY_ACK) {
3307 | var start = i + 1;
3308 | while (str.charAt(++i) !== "-" && i != str.length) {}
3309 | var buf = str.substring(start, i);
3310 | if (buf != Number(buf) || str.charAt(i) !== "-") {
3311 | throw new Error("Illegal attachments");
3312 | }
3313 | p.attachments = Number(buf);
3314 | }
3315 | // look up namespace (if any)
3316 | if ("/" === str.charAt(i + 1)) {
3317 | var _start = i + 1;
3318 | while (++i) {
3319 | var c = str.charAt(i);
3320 | if ("," === c) break;
3321 | if (i === str.length) break;
3322 | }
3323 | p.nsp = str.substring(_start, i);
3324 | } else {
3325 | p.nsp = "/";
3326 | }
3327 | // look up id
3328 | var next = str.charAt(i + 1);
3329 | if ("" !== next && Number(next) == next) {
3330 | var _start2 = i + 1;
3331 | while (++i) {
3332 | var _c = str.charAt(i);
3333 | if (null == _c || Number(_c) != _c) {
3334 | --i;
3335 | break;
3336 | }
3337 | if (i === str.length) break;
3338 | }
3339 | p.id = Number(str.substring(_start2, i + 1));
3340 | }
3341 | // look up json data
3342 | if (str.charAt(++i)) {
3343 | var payload = this.tryParse(str.substr(i));
3344 | if (Decoder.isPayloadValid(p.type, payload)) {
3345 | p.data = payload;
3346 | } else {
3347 | throw new Error("invalid payload");
3348 | }
3349 | }
3350 | return p;
3351 | };
3352 | _proto2.tryParse = function tryParse(str) {
3353 | try {
3354 | return JSON.parse(str, this.reviver);
3355 | } catch (e) {
3356 | return false;
3357 | }
3358 | };
3359 | Decoder.isPayloadValid = function isPayloadValid(type, payload) {
3360 | switch (type) {
3361 | case PacketType.CONNECT:
3362 | return isObject(payload);
3363 | case PacketType.DISCONNECT:
3364 | return payload === undefined;
3365 | case PacketType.CONNECT_ERROR:
3366 | return typeof payload === "string" || isObject(payload);
3367 | case PacketType.EVENT:
3368 | case PacketType.BINARY_EVENT:
3369 | return Array.isArray(payload) && (typeof payload[0] === "number" || typeof payload[0] === "string" && RESERVED_EVENTS$1.indexOf(payload[0]) === -1);
3370 | case PacketType.ACK:
3371 | case PacketType.BINARY_ACK:
3372 | return Array.isArray(payload);
3373 | }
3374 | }
3375 | /**
3376 | * Deallocates a parser's resources
3377 | */;
3378 | _proto2.destroy = function destroy() {
3379 | if (this.reconstructor) {
3380 | this.reconstructor.finishedReconstruction();
3381 | this.reconstructor = null;
3382 | }
3383 | };
3384 | return Decoder;
3385 | }(Emitter);
3386 | /**
3387 | * A manager of a binary event's 'buffer sequence'. Should
3388 | * be constructed whenever a packet of type BINARY_EVENT is
3389 | * decoded.
3390 | *
3391 | * @param {Object} packet
3392 | * @return {BinaryReconstructor} initialized reconstructor
3393 | */
3394 | var BinaryReconstructor = /*#__PURE__*/function () {
3395 | function BinaryReconstructor(packet) {
3396 | this.packet = packet;
3397 | this.buffers = [];
3398 | this.reconPack = packet;
3399 | }
3400 | /**
3401 | * Method to be called when binary data received from connection
3402 | * after a BINARY_EVENT packet.
3403 | *
3404 | * @param {Buffer | ArrayBuffer} binData - the raw binary data received
3405 | * @return {null | Object} returns null if more binary data is expected or
3406 | * a reconstructed packet object if all buffers have been received.
3407 | */
3408 | var _proto3 = BinaryReconstructor.prototype;
3409 | _proto3.takeBinaryData = function takeBinaryData(binData) {
3410 | this.buffers.push(binData);
3411 | if (this.buffers.length === this.reconPack.attachments) {
3412 | // done with buffer list
3413 | var packet = reconstructPacket(this.reconPack, this.buffers);
3414 | this.finishedReconstruction();
3415 | return packet;
3416 | }
3417 | return null;
3418 | }
3419 | /**
3420 | * Cleans up binary packet reconstruction variables.
3421 | */;
3422 | _proto3.finishedReconstruction = function finishedReconstruction() {
3423 | this.reconPack = null;
3424 | this.buffers = [];
3425 | };
3426 | return BinaryReconstructor;
3427 | }();
3428 | function isNamespaceValid(nsp) {
3429 | return typeof nsp === "string";
3430 | }
3431 | // see https://caniuse.com/mdn-javascript_builtins_number_isinteger
3432 | var isInteger = Number.isInteger || function (value) {
3433 | return typeof value === "number" && isFinite(value) && Math.floor(value) === value;
3434 | };
3435 | function isAckIdValid(id) {
3436 | return id === undefined || isInteger(id);
3437 | }
3438 | // see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript
3439 | function isObject(value) {
3440 | return Object.prototype.toString.call(value) === "[object Object]";
3441 | }
3442 | function isDataValid(type, payload) {
3443 | switch (type) {
3444 | case PacketType.CONNECT:
3445 | return payload === undefined || isObject(payload);
3446 | case PacketType.DISCONNECT:
3447 | return payload === undefined;
3448 | case PacketType.EVENT:
3449 | return Array.isArray(payload) && (typeof payload[0] === "number" || typeof payload[0] === "string" && RESERVED_EVENTS$1.indexOf(payload[0]) === -1);
3450 | case PacketType.ACK:
3451 | return Array.isArray(payload);
3452 | case PacketType.CONNECT_ERROR:
3453 | return typeof payload === "string" || isObject(payload);
3454 | default:
3455 | return false;
3456 | }
3457 | }
3458 | function isPacketValid(packet) {
3459 | return isNamespaceValid(packet.nsp) && isAckIdValid(packet.id) && isDataValid(packet.type, packet.data);
3460 | }
3461 |
3462 | var parser = /*#__PURE__*/Object.freeze({
3463 | __proto__: null,
3464 | protocol: protocol,
3465 | get PacketType () { return PacketType; },
3466 | Encoder: Encoder,
3467 | Decoder: Decoder,
3468 | isPacketValid: isPacketValid
3469 | });
3470 |
3471 | function on(obj, ev, fn) {
3472 | obj.on(ev, fn);
3473 | return function subDestroy() {
3474 | obj.off(ev, fn);
3475 | };
3476 | }
3477 |
3478 | var debug$2 = debugModule("socket.io-client:socket"); // debug()
3479 | /**
3480 | * Internal events.
3481 | * These events can't be emitted by the user.
3482 | */
3483 | var RESERVED_EVENTS = Object.freeze({
3484 | connect: 1,
3485 | connect_error: 1,
3486 | disconnect: 1,
3487 | disconnecting: 1,
3488 | // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener
3489 | newListener: 1,
3490 | removeListener: 1
3491 | });
3492 | /**
3493 | * A Socket is the fundamental class for interacting with the server.
3494 | *
3495 | * A Socket belongs to a certain Namespace (by default /) and uses an underlying {@link Manager} to communicate.
3496 | *
3497 | * @example
3498 | * const socket = io();
3499 | *
3500 | * socket.on("connect", () => {
3501 | * console.log("connected");
3502 | * });
3503 | *
3504 | * // send an event to the server
3505 | * socket.emit("foo", "bar");
3506 | *
3507 | * socket.on("foobar", () => {
3508 | * // an event was received from the server
3509 | * });
3510 | *
3511 | * // upon disconnection
3512 | * socket.on("disconnect", (reason) => {
3513 | * console.log(`disconnected due to ${reason}`);
3514 | * });
3515 | */
3516 | var Socket = /*#__PURE__*/function (_Emitter) {
3517 | /**
3518 | * `Socket` constructor.
3519 | */
3520 | function Socket(io, nsp, opts) {
3521 | var _this;
3522 | _this = _Emitter.call(this) || this;
3523 | /**
3524 | * Whether the socket is currently connected to the server.
3525 | *
3526 | * @example
3527 | * const socket = io();
3528 | *
3529 | * socket.on("connect", () => {
3530 | * console.log(socket.connected); // true
3531 | * });
3532 | *
3533 | * socket.on("disconnect", () => {
3534 | * console.log(socket.connected); // false
3535 | * });
3536 | */
3537 | _this.connected = false;
3538 | /**
3539 | * Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will
3540 | * be transmitted by the server.
3541 | */
3542 | _this.recovered = false;
3543 | /**
3544 | * Buffer for packets received before the CONNECT packet
3545 | */
3546 | _this.receiveBuffer = [];
3547 | /**
3548 | * Buffer for packets that will be sent once the socket is connected
3549 | */
3550 | _this.sendBuffer = [];
3551 | /**
3552 | * The queue of packets to be sent with retry in case of failure.
3553 | *
3554 | * Packets are sent one by one, each waiting for the server acknowledgement, in order to guarantee the delivery order.
3555 | * @private
3556 | */
3557 | _this._queue = [];
3558 | /**
3559 | * A sequence to generate the ID of the {@link QueuedPacket}.
3560 | * @private
3561 | */
3562 | _this._queueSeq = 0;
3563 | _this.ids = 0;
3564 | /**
3565 | * A map containing acknowledgement handlers.
3566 | *
3567 | * The `withError` attribute is used to differentiate handlers that accept an error as first argument:
3568 | *
3569 | * - `socket.emit("test", (err, value) => { ... })` with `ackTimeout` option
3570 | * - `socket.timeout(5000).emit("test", (err, value) => { ... })`
3571 | * - `const value = await socket.emitWithAck("test")`
3572 | *
3573 | * From those that don't:
3574 | *
3575 | * - `socket.emit("test", (value) => { ... });`
3576 | *
3577 | * In the first case, the handlers will be called with an error when:
3578 | *
3579 | * - the timeout is reached
3580 | * - the socket gets disconnected
3581 | *
3582 | * In the second case, the handlers will be simply discarded upon disconnection, since the client will never receive
3583 | * an acknowledgement from the server.
3584 | *
3585 | * @private
3586 | */
3587 | _this.acks = {};
3588 | _this.flags = {};
3589 | _this.io = io;
3590 | _this.nsp = nsp;
3591 | if (opts && opts.auth) {
3592 | _this.auth = opts.auth;
3593 | }
3594 | _this._opts = _extends({}, opts);
3595 | if (_this.io._autoConnect) _this.open();
3596 | return _this;
3597 | }
3598 | /**
3599 | * Whether the socket is currently disconnected
3600 | *
3601 | * @example
3602 | * const socket = io();
3603 | *
3604 | * socket.on("connect", () => {
3605 | * console.log(socket.disconnected); // false
3606 | * });
3607 | *
3608 | * socket.on("disconnect", () => {
3609 | * console.log(socket.disconnected); // true
3610 | * });
3611 | */
3612 | _inheritsLoose(Socket, _Emitter);
3613 | var _proto = Socket.prototype;
3614 | /**
3615 | * Subscribe to open, close and packet events
3616 | *
3617 | * @private
3618 | */
3619 | _proto.subEvents = function subEvents() {
3620 | if (this.subs) return;
3621 | var io = this.io;
3622 | 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))];
3623 | }
3624 | /**
3625 | * Whether the Socket will try to reconnect when its Manager connects or reconnects.
3626 | *
3627 | * @example
3628 | * const socket = io();
3629 | *
3630 | * console.log(socket.active); // true
3631 | *
3632 | * socket.on("disconnect", (reason) => {
3633 | * if (reason === "io server disconnect") {
3634 | * // the disconnection was initiated by the server, you need to manually reconnect
3635 | * console.log(socket.active); // false
3636 | * }
3637 | * // else the socket will automatically try to reconnect
3638 | * console.log(socket.active); // true
3639 | * });
3640 | */;
3641 | /**
3642 | * "Opens" the socket.
3643 | *
3644 | * @example
3645 | * const socket = io({
3646 | * autoConnect: false
3647 | * });
3648 | *
3649 | * socket.connect();
3650 | */
3651 | _proto.connect = function connect() {
3652 | if (this.connected) return this;
3653 | this.subEvents();
3654 | if (!this.io["_reconnecting"]) this.io.open(); // ensure open
3655 | if ("open" === this.io._readyState) this.onopen();
3656 | return this;
3657 | }
3658 | /**
3659 | * Alias for {@link connect()}.
3660 | */;
3661 | _proto.open = function open() {
3662 | return this.connect();
3663 | }
3664 | /**
3665 | * Sends a `message` event.
3666 | *
3667 | * This method mimics the WebSocket.send() method.
3668 | *
3669 | * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
3670 | *
3671 | * @example
3672 | * socket.send("hello");
3673 | *
3674 | * // this is equivalent to
3675 | * socket.emit("message", "hello");
3676 | *
3677 | * @return self
3678 | */;
3679 | _proto.send = function send() {
3680 | for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
3681 | args[_key] = arguments[_key];
3682 | }
3683 | args.unshift("message");
3684 | this.emit.apply(this, args);
3685 | return this;
3686 | }
3687 | /**
3688 | * Override `emit`.
3689 | * If the event is in `events`, it's emitted normally.
3690 | *
3691 | * @example
3692 | * socket.emit("hello", "world");
3693 | *
3694 | * // all serializable datastructures are supported (no need to call JSON.stringify)
3695 | * socket.emit("hello", 1, "2", { 3: ["4"], 5: Uint8Array.from([6]) });
3696 | *
3697 | * // with an acknowledgement from the server
3698 | * socket.emit("hello", "world", (val) => {
3699 | * // ...
3700 | * });
3701 | *
3702 | * @return self
3703 | */;
3704 | _proto.emit = function emit(ev) {
3705 | var _a, _b, _c;
3706 | if (RESERVED_EVENTS.hasOwnProperty(ev)) {
3707 | throw new Error('"' + ev.toString() + '" is a reserved event name');
3708 | }
3709 | for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
3710 | args[_key2 - 1] = arguments[_key2];
3711 | }
3712 | args.unshift(ev);
3713 | if (this._opts.retries && !this.flags.fromQueue && !this.flags["volatile"]) {
3714 | this._addToQueue(args);
3715 | return this;
3716 | }
3717 | var packet = {
3718 | type: PacketType.EVENT,
3719 | data: args
3720 | };
3721 | packet.options = {};
3722 | packet.options.compress = this.flags.compress !== false;
3723 | // event ack callback
3724 | if ("function" === typeof args[args.length - 1]) {
3725 | var id = this.ids++;
3726 | debug$2("emitting packet with ack id %d", id);
3727 | var ack = args.pop();
3728 | this._registerAckCallback(id, ack);
3729 | packet.id = id;
3730 | }
3731 | var isTransportWritable = (_b = (_a = this.io.engine) === null || _a === void 0 ? void 0 : _a.transport) === null || _b === void 0 ? void 0 : _b.writable;
3732 | var isConnected = this.connected && !((_c = this.io.engine) === null || _c === void 0 ? void 0 : _c._hasPingExpired());
3733 | var discardPacket = this.flags["volatile"] && !isTransportWritable;
3734 | if (discardPacket) {
3735 | debug$2("discard packet as the transport is not currently writable");
3736 | } else if (isConnected) {
3737 | this.notifyOutgoingListeners(packet);
3738 | this.packet(packet);
3739 | } else {
3740 | this.sendBuffer.push(packet);
3741 | }
3742 | this.flags = {};
3743 | return this;
3744 | }
3745 | /**
3746 | * @private
3747 | */;
3748 | _proto._registerAckCallback = function _registerAckCallback(id, ack) {
3749 | var _this2 = this;
3750 | var _a;
3751 | var timeout = (_a = this.flags.timeout) !== null && _a !== void 0 ? _a : this._opts.ackTimeout;
3752 | if (timeout === undefined) {
3753 | this.acks[id] = ack;
3754 | return;
3755 | }
3756 | // @ts-ignore
3757 | var timer = this.io.setTimeoutFn(function () {
3758 | delete _this2.acks[id];
3759 | for (var i = 0; i < _this2.sendBuffer.length; i++) {
3760 | if (_this2.sendBuffer[i].id === id) {
3761 | debug$2("removing packet with ack id %d from the buffer", id);
3762 | _this2.sendBuffer.splice(i, 1);
3763 | }
3764 | }
3765 | debug$2("event with ack id %d has timed out after %d ms", id, timeout);
3766 | ack.call(_this2, new Error("operation has timed out"));
3767 | }, timeout);
3768 | var fn = function fn() {
3769 | // @ts-ignore
3770 | _this2.io.clearTimeoutFn(timer);
3771 | for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
3772 | args[_key3] = arguments[_key3];
3773 | }
3774 | ack.apply(_this2, args);
3775 | };
3776 | fn.withError = true;
3777 | this.acks[id] = fn;
3778 | }
3779 | /**
3780 | * Emits an event and waits for an acknowledgement
3781 | *
3782 | * @example
3783 | * // without timeout
3784 | * const response = await socket.emitWithAck("hello", "world");
3785 | *
3786 | * // with a specific timeout
3787 | * try {
3788 | * const response = await socket.timeout(1000).emitWithAck("hello", "world");
3789 | * } catch (err) {
3790 | * // the server did not acknowledge the event in the given delay
3791 | * }
3792 | *
3793 | * @return a Promise that will be fulfilled when the server acknowledges the event
3794 | */;
3795 | _proto.emitWithAck = function emitWithAck(ev) {
3796 | var _this3 = this;
3797 | for (var _len4 = arguments.length, args = new Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {
3798 | args[_key4 - 1] = arguments[_key4];
3799 | }
3800 | return new Promise(function (resolve, reject) {
3801 | var fn = function fn(arg1, arg2) {
3802 | return arg1 ? reject(arg1) : resolve(arg2);
3803 | };
3804 | fn.withError = true;
3805 | args.push(fn);
3806 | _this3.emit.apply(_this3, [ev].concat(args));
3807 | });
3808 | }
3809 | /**
3810 | * Add the packet to the queue.
3811 | * @param args
3812 | * @private
3813 | */;
3814 | _proto._addToQueue = function _addToQueue(args) {
3815 | var _this4 = this;
3816 | var ack;
3817 | if (typeof args[args.length - 1] === "function") {
3818 | ack = args.pop();
3819 | }
3820 | var packet = {
3821 | id: this._queueSeq++,
3822 | tryCount: 0,
3823 | pending: false,
3824 | args: args,
3825 | flags: _extends({
3826 | fromQueue: true
3827 | }, this.flags)
3828 | };
3829 | args.push(function (err) {
3830 | if (packet !== _this4._queue[0]) {
3831 | // the packet has already been acknowledged
3832 | return;
3833 | }
3834 | var hasError = err !== null;
3835 | if (hasError) {
3836 | if (packet.tryCount > _this4._opts.retries) {
3837 | debug$2("packet [%d] is discarded after %d tries", packet.id, packet.tryCount);
3838 | _this4._queue.shift();
3839 | if (ack) {
3840 | ack(err);
3841 | }
3842 | }
3843 | } else {
3844 | debug$2("packet [%d] was successfully sent", packet.id);
3845 | _this4._queue.shift();
3846 | if (ack) {
3847 | for (var _len5 = arguments.length, responseArgs = new Array(_len5 > 1 ? _len5 - 1 : 0), _key5 = 1; _key5 < _len5; _key5++) {
3848 | responseArgs[_key5 - 1] = arguments[_key5];
3849 | }
3850 | ack.apply(void 0, [null].concat(responseArgs));
3851 | }
3852 | }
3853 | packet.pending = false;
3854 | return _this4._drainQueue();
3855 | });
3856 | this._queue.push(packet);
3857 | this._drainQueue();
3858 | }
3859 | /**
3860 | * Send the first packet of the queue, and wait for an acknowledgement from the server.
3861 | * @param force - whether to resend a packet that has not been acknowledged yet
3862 | *
3863 | * @private
3864 | */;
3865 | _proto._drainQueue = function _drainQueue() {
3866 | var force = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
3867 | debug$2("draining queue");
3868 | if (!this.connected || this._queue.length === 0) {
3869 | return;
3870 | }
3871 | var packet = this._queue[0];
3872 | if (packet.pending && !force) {
3873 | debug$2("packet [%d] has already been sent and is waiting for an ack", packet.id);
3874 | return;
3875 | }
3876 | packet.pending = true;
3877 | packet.tryCount++;
3878 | debug$2("sending packet [%d] (try n°%d)", packet.id, packet.tryCount);
3879 | this.flags = packet.flags;
3880 | this.emit.apply(this, packet.args);
3881 | }
3882 | /**
3883 | * Sends a packet.
3884 | *
3885 | * @param packet
3886 | * @private
3887 | */;
3888 | _proto.packet = function packet(_packet) {
3889 | _packet.nsp = this.nsp;
3890 | this.io._packet(_packet);
3891 | }
3892 | /**
3893 | * Called upon engine `open`.
3894 | *
3895 | * @private
3896 | */;
3897 | _proto.onopen = function onopen() {
3898 | var _this5 = this;
3899 | debug$2("transport is open - connecting");
3900 | if (typeof this.auth == "function") {
3901 | this.auth(function (data) {
3902 | _this5._sendConnectPacket(data);
3903 | });
3904 | } else {
3905 | this._sendConnectPacket(this.auth);
3906 | }
3907 | }
3908 | /**
3909 | * Sends a CONNECT packet to initiate the Socket.IO session.
3910 | *
3911 | * @param data
3912 | * @private
3913 | */;
3914 | _proto._sendConnectPacket = function _sendConnectPacket(data) {
3915 | this.packet({
3916 | type: PacketType.CONNECT,
3917 | data: this._pid ? _extends({
3918 | pid: this._pid,
3919 | offset: this._lastOffset
3920 | }, data) : data
3921 | });
3922 | }
3923 | /**
3924 | * Called upon engine or manager `error`.
3925 | *
3926 | * @param err
3927 | * @private
3928 | */;
3929 | _proto.onerror = function onerror(err) {
3930 | if (!this.connected) {
3931 | this.emitReserved("connect_error", err);
3932 | }
3933 | }
3934 | /**
3935 | * Called upon engine `close`.
3936 | *
3937 | * @param reason
3938 | * @param description
3939 | * @private
3940 | */;
3941 | _proto.onclose = function onclose(reason, description) {
3942 | debug$2("close (%s)", reason);
3943 | this.connected = false;
3944 | delete this.id;
3945 | this.emitReserved("disconnect", reason, description);
3946 | this._clearAcks();
3947 | }
3948 | /**
3949 | * Clears the acknowledgement handlers upon disconnection, since the client will never receive an acknowledgement from
3950 | * the server.
3951 | *
3952 | * @private
3953 | */;
3954 | _proto._clearAcks = function _clearAcks() {
3955 | var _this6 = this;
3956 | Object.keys(this.acks).forEach(function (id) {
3957 | var isBuffered = _this6.sendBuffer.some(function (packet) {
3958 | return String(packet.id) === id;
3959 | });
3960 | if (!isBuffered) {
3961 | // note: handlers that do not accept an error as first argument are ignored here
3962 | var ack = _this6.acks[id];
3963 | delete _this6.acks[id];
3964 | if (ack.withError) {
3965 | ack.call(_this6, new Error("socket has been disconnected"));
3966 | }
3967 | }
3968 | });
3969 | }
3970 | /**
3971 | * Called with socket packet.
3972 | *
3973 | * @param packet
3974 | * @private
3975 | */;
3976 | _proto.onpacket = function onpacket(packet) {
3977 | var sameNamespace = packet.nsp === this.nsp;
3978 | if (!sameNamespace) return;
3979 | switch (packet.type) {
3980 | case PacketType.CONNECT:
3981 | if (packet.data && packet.data.sid) {
3982 | this.onconnect(packet.data.sid, packet.data.pid);
3983 | } else {
3984 | 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/)"));
3985 | }
3986 | break;
3987 | case PacketType.EVENT:
3988 | case PacketType.BINARY_EVENT:
3989 | this.onevent(packet);
3990 | break;
3991 | case PacketType.ACK:
3992 | case PacketType.BINARY_ACK:
3993 | this.onack(packet);
3994 | break;
3995 | case PacketType.DISCONNECT:
3996 | this.ondisconnect();
3997 | break;
3998 | case PacketType.CONNECT_ERROR:
3999 | this.destroy();
4000 | var err = new Error(packet.data.message);
4001 | // @ts-ignore
4002 | err.data = packet.data.data;
4003 | this.emitReserved("connect_error", err);
4004 | break;
4005 | }
4006 | }
4007 | /**
4008 | * Called upon a server event.
4009 | *
4010 | * @param packet
4011 | * @private
4012 | */;
4013 | _proto.onevent = function onevent(packet) {
4014 | var args = packet.data || [];
4015 | debug$2("emitting event %j", args);
4016 | if (null != packet.id) {
4017 | debug$2("attaching ack callback to event");
4018 | args.push(this.ack(packet.id));
4019 | }
4020 | if (this.connected) {
4021 | this.emitEvent(args);
4022 | } else {
4023 | this.receiveBuffer.push(Object.freeze(args));
4024 | }
4025 | };
4026 | _proto.emitEvent = function emitEvent(args) {
4027 | if (this._anyListeners && this._anyListeners.length) {
4028 | var listeners = this._anyListeners.slice();
4029 | var _iterator = _createForOfIteratorHelper(listeners),
4030 | _step;
4031 | try {
4032 | for (_iterator.s(); !(_step = _iterator.n()).done;) {
4033 | var listener = _step.value;
4034 | listener.apply(this, args);
4035 | }
4036 | } catch (err) {
4037 | _iterator.e(err);
4038 | } finally {
4039 | _iterator.f();
4040 | }
4041 | }
4042 | _Emitter.prototype.emit.apply(this, args);
4043 | if (this._pid && args.length && typeof args[args.length - 1] === "string") {
4044 | this._lastOffset = args[args.length - 1];
4045 | }
4046 | }
4047 | /**
4048 | * Produces an ack callback to emit with an event.
4049 | *
4050 | * @private
4051 | */;
4052 | _proto.ack = function ack(id) {
4053 | var self = this;
4054 | var sent = false;
4055 | return function () {
4056 | // prevent double callbacks
4057 | if (sent) return;
4058 | sent = true;
4059 | for (var _len6 = arguments.length, args = new Array(_len6), _key6 = 0; _key6 < _len6; _key6++) {
4060 | args[_key6] = arguments[_key6];
4061 | }
4062 | debug$2("sending ack %j", args);
4063 | self.packet({
4064 | type: PacketType.ACK,
4065 | id: id,
4066 | data: args
4067 | });
4068 | };
4069 | }
4070 | /**
4071 | * Called upon a server acknowledgement.
4072 | *
4073 | * @param packet
4074 | * @private
4075 | */;
4076 | _proto.onack = function onack(packet) {
4077 | var ack = this.acks[packet.id];
4078 | if (typeof ack !== "function") {
4079 | debug$2("bad ack %s", packet.id);
4080 | return;
4081 | }
4082 | delete this.acks[packet.id];
4083 | debug$2("calling ack %s with %j", packet.id, packet.data);
4084 | // @ts-ignore FIXME ack is incorrectly inferred as 'never'
4085 | if (ack.withError) {
4086 | packet.data.unshift(null);
4087 | }
4088 | // @ts-ignore
4089 | ack.apply(this, packet.data);
4090 | }
4091 | /**
4092 | * Called upon server connect.
4093 | *
4094 | * @private
4095 | */;
4096 | _proto.onconnect = function onconnect(id, pid) {
4097 | debug$2("socket connected with id %s", id);
4098 | this.id = id;
4099 | this.recovered = pid && this._pid === pid;
4100 | this._pid = pid; // defined only if connection state recovery is enabled
4101 | this.connected = true;
4102 | this.emitBuffered();
4103 | this.emitReserved("connect");
4104 | this._drainQueue(true);
4105 | }
4106 | /**
4107 | * Emit buffered events (received and emitted).
4108 | *
4109 | * @private
4110 | */;
4111 | _proto.emitBuffered = function emitBuffered() {
4112 | var _this7 = this;
4113 | this.receiveBuffer.forEach(function (args) {
4114 | return _this7.emitEvent(args);
4115 | });
4116 | this.receiveBuffer = [];
4117 | this.sendBuffer.forEach(function (packet) {
4118 | _this7.notifyOutgoingListeners(packet);
4119 | _this7.packet(packet);
4120 | });
4121 | this.sendBuffer = [];
4122 | }
4123 | /**
4124 | * Called upon server disconnect.
4125 | *
4126 | * @private
4127 | */;
4128 | _proto.ondisconnect = function ondisconnect() {
4129 | debug$2("server disconnect (%s)", this.nsp);
4130 | this.destroy();
4131 | this.onclose("io server disconnect");
4132 | }
4133 | /**
4134 | * Called upon forced client/server side disconnections,
4135 | * this method ensures the manager stops tracking us and
4136 | * that reconnections don't get triggered for this.
4137 | *
4138 | * @private
4139 | */;
4140 | _proto.destroy = function destroy() {
4141 | if (this.subs) {
4142 | // clean subscriptions to avoid reconnections
4143 | this.subs.forEach(function (subDestroy) {
4144 | return subDestroy();
4145 | });
4146 | this.subs = undefined;
4147 | }
4148 | this.io["_destroy"](this);
4149 | }
4150 | /**
4151 | * Disconnects the socket manually. In that case, the socket will not try to reconnect.
4152 | *
4153 | * If this is the last active Socket instance of the {@link Manager}, the low-level connection will be closed.
4154 | *
4155 | * @example
4156 | * const socket = io();
4157 | *
4158 | * socket.on("disconnect", (reason) => {
4159 | * // console.log(reason); prints "io client disconnect"
4160 | * });
4161 | *
4162 | * socket.disconnect();
4163 | *
4164 | * @return self
4165 | */;
4166 | _proto.disconnect = function disconnect() {
4167 | if (this.connected) {
4168 | debug$2("performing disconnect (%s)", this.nsp);
4169 | this.packet({
4170 | type: PacketType.DISCONNECT
4171 | });
4172 | }
4173 | // remove socket from pool
4174 | this.destroy();
4175 | if (this.connected) {
4176 | // fire events
4177 | this.onclose("io client disconnect");
4178 | }
4179 | return this;
4180 | }
4181 | /**
4182 | * Alias for {@link disconnect()}.
4183 | *
4184 | * @return self
4185 | */;
4186 | _proto.close = function close() {
4187 | return this.disconnect();
4188 | }
4189 | /**
4190 | * Sets the compress flag.
4191 | *
4192 | * @example
4193 | * socket.compress(false).emit("hello");
4194 | *
4195 | * @param compress - if `true`, compresses the sending data
4196 | * @return self
4197 | */;
4198 | _proto.compress = function compress(_compress) {
4199 | this.flags.compress = _compress;
4200 | return this;
4201 | }
4202 | /**
4203 | * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not
4204 | * ready to send messages.
4205 | *
4206 | * @example
4207 | * socket.volatile.emit("hello"); // the server may or may not receive it
4208 | *
4209 | * @returns self
4210 | */;
4211 | /**
4212 | * Sets a modifier for a subsequent event emission that the callback will be called with an error when the
4213 | * given number of milliseconds have elapsed without an acknowledgement from the server:
4214 | *
4215 | * @example
4216 | * socket.timeout(5000).emit("my-event", (err) => {
4217 | * if (err) {
4218 | * // the server did not acknowledge the event in the given delay
4219 | * }
4220 | * });
4221 | *
4222 | * @returns self
4223 | */
4224 | _proto.timeout = function timeout(_timeout) {
4225 | this.flags.timeout = _timeout;
4226 | return this;
4227 | }
4228 | /**
4229 | * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
4230 | * callback.
4231 | *
4232 | * @example
4233 | * socket.onAny((event, ...args) => {
4234 | * console.log(`got ${event}`);
4235 | * });
4236 | *
4237 | * @param listener
4238 | */;
4239 | _proto.onAny = function onAny(listener) {
4240 | this._anyListeners = this._anyListeners || [];
4241 | this._anyListeners.push(listener);
4242 | return this;
4243 | }
4244 | /**
4245 | * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
4246 | * callback. The listener is added to the beginning of the listeners array.
4247 | *
4248 | * @example
4249 | * socket.prependAny((event, ...args) => {
4250 | * console.log(`got event ${event}`);
4251 | * });
4252 | *
4253 | * @param listener
4254 | */;
4255 | _proto.prependAny = function prependAny(listener) {
4256 | this._anyListeners = this._anyListeners || [];
4257 | this._anyListeners.unshift(listener);
4258 | return this;
4259 | }
4260 | /**
4261 | * Removes the listener that will be fired when any event is emitted.
4262 | *
4263 | * @example
4264 | * const catchAllListener = (event, ...args) => {
4265 | * console.log(`got event ${event}`);
4266 | * }
4267 | *
4268 | * socket.onAny(catchAllListener);
4269 | *
4270 | * // remove a specific listener
4271 | * socket.offAny(catchAllListener);
4272 | *
4273 | * // or remove all listeners
4274 | * socket.offAny();
4275 | *
4276 | * @param listener
4277 | */;
4278 | _proto.offAny = function offAny(listener) {
4279 | if (!this._anyListeners) {
4280 | return this;
4281 | }
4282 | if (listener) {
4283 | var listeners = this._anyListeners;
4284 | for (var i = 0; i < listeners.length; i++) {
4285 | if (listener === listeners[i]) {
4286 | listeners.splice(i, 1);
4287 | return this;
4288 | }
4289 | }
4290 | } else {
4291 | this._anyListeners = [];
4292 | }
4293 | return this;
4294 | }
4295 | /**
4296 | * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,
4297 | * e.g. to remove listeners.
4298 | */;
4299 | _proto.listenersAny = function listenersAny() {
4300 | return this._anyListeners || [];
4301 | }
4302 | /**
4303 | * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
4304 | * callback.
4305 | *
4306 | * Note: acknowledgements sent to the server are not included.
4307 | *
4308 | * @example
4309 | * socket.onAnyOutgoing((event, ...args) => {
4310 | * console.log(`sent event ${event}`);
4311 | * });
4312 | *
4313 | * @param listener
4314 | */;
4315 | _proto.onAnyOutgoing = function onAnyOutgoing(listener) {
4316 | this._anyOutgoingListeners = this._anyOutgoingListeners || [];
4317 | this._anyOutgoingListeners.push(listener);
4318 | return this;
4319 | }
4320 | /**
4321 | * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
4322 | * callback. The listener is added to the beginning of the listeners array.
4323 | *
4324 | * Note: acknowledgements sent to the server are not included.
4325 | *
4326 | * @example
4327 | * socket.prependAnyOutgoing((event, ...args) => {
4328 | * console.log(`sent event ${event}`);
4329 | * });
4330 | *
4331 | * @param listener
4332 | */;
4333 | _proto.prependAnyOutgoing = function prependAnyOutgoing(listener) {
4334 | this._anyOutgoingListeners = this._anyOutgoingListeners || [];
4335 | this._anyOutgoingListeners.unshift(listener);
4336 | return this;
4337 | }
4338 | /**
4339 | * Removes the listener that will be fired when any event is emitted.
4340 | *
4341 | * @example
4342 | * const catchAllListener = (event, ...args) => {
4343 | * console.log(`sent event ${event}`);
4344 | * }
4345 | *
4346 | * socket.onAnyOutgoing(catchAllListener);
4347 | *
4348 | * // remove a specific listener
4349 | * socket.offAnyOutgoing(catchAllListener);
4350 | *
4351 | * // or remove all listeners
4352 | * socket.offAnyOutgoing();
4353 | *
4354 | * @param [listener] - the catch-all listener (optional)
4355 | */;
4356 | _proto.offAnyOutgoing = function offAnyOutgoing(listener) {
4357 | if (!this._anyOutgoingListeners) {
4358 | return this;
4359 | }
4360 | if (listener) {
4361 | var listeners = this._anyOutgoingListeners;
4362 | for (var i = 0; i < listeners.length; i++) {
4363 | if (listener === listeners[i]) {
4364 | listeners.splice(i, 1);
4365 | return this;
4366 | }
4367 | }
4368 | } else {
4369 | this._anyOutgoingListeners = [];
4370 | }
4371 | return this;
4372 | }
4373 | /**
4374 | * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,
4375 | * e.g. to remove listeners.
4376 | */;
4377 | _proto.listenersAnyOutgoing = function listenersAnyOutgoing() {
4378 | return this._anyOutgoingListeners || [];
4379 | }
4380 | /**
4381 | * Notify the listeners for each packet sent
4382 | *
4383 | * @param packet
4384 | *
4385 | * @private
4386 | */;
4387 | _proto.notifyOutgoingListeners = function notifyOutgoingListeners(packet) {
4388 | if (this._anyOutgoingListeners && this._anyOutgoingListeners.length) {
4389 | var listeners = this._anyOutgoingListeners.slice();
4390 | var _iterator2 = _createForOfIteratorHelper(listeners),
4391 | _step2;
4392 | try {
4393 | for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
4394 | var listener = _step2.value;
4395 | listener.apply(this, packet.data);
4396 | }
4397 | } catch (err) {
4398 | _iterator2.e(err);
4399 | } finally {
4400 | _iterator2.f();
4401 | }
4402 | }
4403 | };
4404 | return _createClass(Socket, [{
4405 | key: "disconnected",
4406 | get: function get() {
4407 | return !this.connected;
4408 | }
4409 | }, {
4410 | key: "active",
4411 | get: function get() {
4412 | return !!this.subs;
4413 | }
4414 | }, {
4415 | key: "volatile",
4416 | get: function get() {
4417 | this.flags["volatile"] = true;
4418 | return this;
4419 | }
4420 | }]);
4421 | }(Emitter);
4422 |
4423 | /**
4424 | * Initialize backoff timer with `opts`.
4425 | *
4426 | * - `min` initial timeout in milliseconds [100]
4427 | * - `max` max timeout [10000]
4428 | * - `jitter` [0]
4429 | * - `factor` [2]
4430 | *
4431 | * @param {Object} opts
4432 | * @api public
4433 | */
4434 | function Backoff(opts) {
4435 | opts = opts || {};
4436 | this.ms = opts.min || 100;
4437 | this.max = opts.max || 10000;
4438 | this.factor = opts.factor || 2;
4439 | this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
4440 | this.attempts = 0;
4441 | }
4442 | /**
4443 | * Return the backoff duration.
4444 | *
4445 | * @return {Number}
4446 | * @api public
4447 | */
4448 | Backoff.prototype.duration = function () {
4449 | var ms = this.ms * Math.pow(this.factor, this.attempts++);
4450 | if (this.jitter) {
4451 | var rand = Math.random();
4452 | var deviation = Math.floor(rand * this.jitter * ms);
4453 | ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;
4454 | }
4455 | return Math.min(ms, this.max) | 0;
4456 | };
4457 | /**
4458 | * Reset the number of attempts.
4459 | *
4460 | * @api public
4461 | */
4462 | Backoff.prototype.reset = function () {
4463 | this.attempts = 0;
4464 | };
4465 | /**
4466 | * Set the minimum duration
4467 | *
4468 | * @api public
4469 | */
4470 | Backoff.prototype.setMin = function (min) {
4471 | this.ms = min;
4472 | };
4473 | /**
4474 | * Set the maximum duration
4475 | *
4476 | * @api public
4477 | */
4478 | Backoff.prototype.setMax = function (max) {
4479 | this.max = max;
4480 | };
4481 | /**
4482 | * Set the jitter
4483 | *
4484 | * @api public
4485 | */
4486 | Backoff.prototype.setJitter = function (jitter) {
4487 | this.jitter = jitter;
4488 | };
4489 |
4490 | var debug$1 = debugModule("socket.io-client:manager"); // debug()
4491 | var Manager = /*#__PURE__*/function (_Emitter) {
4492 | function Manager(uri, opts) {
4493 | var _this;
4494 | var _a;
4495 | _this = _Emitter.call(this) || this;
4496 | _this.nsps = {};
4497 | _this.subs = [];
4498 | if (uri && "object" === _typeof(uri)) {
4499 | opts = uri;
4500 | uri = undefined;
4501 | }
4502 | opts = opts || {};
4503 | opts.path = opts.path || "/socket.io";
4504 | _this.opts = opts;
4505 | installTimerFunctions(_this, opts);
4506 | _this.reconnection(opts.reconnection !== false);
4507 | _this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
4508 | _this.reconnectionDelay(opts.reconnectionDelay || 1000);
4509 | _this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
4510 | _this.randomizationFactor((_a = opts.randomizationFactor) !== null && _a !== void 0 ? _a : 0.5);
4511 | _this.backoff = new Backoff({
4512 | min: _this.reconnectionDelay(),
4513 | max: _this.reconnectionDelayMax(),
4514 | jitter: _this.randomizationFactor()
4515 | });
4516 | _this.timeout(null == opts.timeout ? 20000 : opts.timeout);
4517 | _this._readyState = "closed";
4518 | _this.uri = uri;
4519 | var _parser = opts.parser || parser;
4520 | _this.encoder = new _parser.Encoder();
4521 | _this.decoder = new _parser.Decoder();
4522 | _this._autoConnect = opts.autoConnect !== false;
4523 | if (_this._autoConnect) _this.open();
4524 | return _this;
4525 | }
4526 | _inheritsLoose(Manager, _Emitter);
4527 | var _proto = Manager.prototype;
4528 | _proto.reconnection = function reconnection(v) {
4529 | if (!arguments.length) return this._reconnection;
4530 | this._reconnection = !!v;
4531 | if (!v) {
4532 | this.skipReconnect = true;
4533 | }
4534 | return this;
4535 | };
4536 | _proto.reconnectionAttempts = function reconnectionAttempts(v) {
4537 | if (v === undefined) return this._reconnectionAttempts;
4538 | this._reconnectionAttempts = v;
4539 | return this;
4540 | };
4541 | _proto.reconnectionDelay = function reconnectionDelay(v) {
4542 | var _a;
4543 | if (v === undefined) return this._reconnectionDelay;
4544 | this._reconnectionDelay = v;
4545 | (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);
4546 | return this;
4547 | };
4548 | _proto.randomizationFactor = function randomizationFactor(v) {
4549 | var _a;
4550 | if (v === undefined) return this._randomizationFactor;
4551 | this._randomizationFactor = v;
4552 | (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);
4553 | return this;
4554 | };
4555 | _proto.reconnectionDelayMax = function reconnectionDelayMax(v) {
4556 | var _a;
4557 | if (v === undefined) return this._reconnectionDelayMax;
4558 | this._reconnectionDelayMax = v;
4559 | (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);
4560 | return this;
4561 | };
4562 | _proto.timeout = function timeout(v) {
4563 | if (!arguments.length) return this._timeout;
4564 | this._timeout = v;
4565 | return this;
4566 | }
4567 | /**
4568 | * Starts trying to reconnect if reconnection is enabled and we have not
4569 | * started reconnecting yet
4570 | *
4571 | * @private
4572 | */;
4573 | _proto.maybeReconnectOnOpen = function maybeReconnectOnOpen() {
4574 | // Only try to reconnect if it's the first time we're connecting
4575 | if (!this._reconnecting && this._reconnection && this.backoff.attempts === 0) {
4576 | // keeps reconnection from firing twice for the same reconnection loop
4577 | this.reconnect();
4578 | }
4579 | }
4580 | /**
4581 | * Sets the current transport `socket`.
4582 | *
4583 | * @param {Function} fn - optional, callback
4584 | * @return self
4585 | * @public
4586 | */;
4587 | _proto.open = function open(fn) {
4588 | var _this2 = this;
4589 | debug$1("readyState %s", this._readyState);
4590 | if (~this._readyState.indexOf("open")) return this;
4591 | debug$1("opening %s", this.uri);
4592 | this.engine = new Socket$1(this.uri, this.opts);
4593 | var socket = this.engine;
4594 | var self = this;
4595 | this._readyState = "opening";
4596 | this.skipReconnect = false;
4597 | // emit `open`
4598 | var openSubDestroy = on(socket, "open", function () {
4599 | self.onopen();
4600 | fn && fn();
4601 | });
4602 | var onError = function onError(err) {
4603 | debug$1("error");
4604 | _this2.cleanup();
4605 | _this2._readyState = "closed";
4606 | _this2.emitReserved("error", err);
4607 | if (fn) {
4608 | fn(err);
4609 | } else {
4610 | // Only do this if there is no fn to handle the error
4611 | _this2.maybeReconnectOnOpen();
4612 | }
4613 | };
4614 | // emit `error`
4615 | var errorSub = on(socket, "error", onError);
4616 | if (false !== this._timeout) {
4617 | var timeout = this._timeout;
4618 | debug$1("connect attempt will timeout after %d", timeout);
4619 | // set timer
4620 | var timer = this.setTimeoutFn(function () {
4621 | debug$1("connect attempt timed out after %d", timeout);
4622 | openSubDestroy();
4623 | onError(new Error("timeout"));
4624 | socket.close();
4625 | }, timeout);
4626 | if (this.opts.autoUnref) {
4627 | timer.unref();
4628 | }
4629 | this.subs.push(function () {
4630 | _this2.clearTimeoutFn(timer);
4631 | });
4632 | }
4633 | this.subs.push(openSubDestroy);
4634 | this.subs.push(errorSub);
4635 | return this;
4636 | }
4637 | /**
4638 | * Alias for open()
4639 | *
4640 | * @return self
4641 | * @public
4642 | */;
4643 | _proto.connect = function connect(fn) {
4644 | return this.open(fn);
4645 | }
4646 | /**
4647 | * Called upon transport open.
4648 | *
4649 | * @private
4650 | */;
4651 | _proto.onopen = function onopen() {
4652 | debug$1("open");
4653 | // clear old subs
4654 | this.cleanup();
4655 | // mark as open
4656 | this._readyState = "open";
4657 | this.emitReserved("open");
4658 | // add new subs
4659 | var socket = this.engine;
4660 | 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)),
4661 | // @ts-ignore
4662 | on(this.decoder, "decoded", this.ondecoded.bind(this)));
4663 | }
4664 | /**
4665 | * Called upon a ping.
4666 | *
4667 | * @private
4668 | */;
4669 | _proto.onping = function onping() {
4670 | this.emitReserved("ping");
4671 | }
4672 | /**
4673 | * Called with data.
4674 | *
4675 | * @private
4676 | */;
4677 | _proto.ondata = function ondata(data) {
4678 | try {
4679 | this.decoder.add(data);
4680 | } catch (e) {
4681 | this.onclose("parse error", e);
4682 | }
4683 | }
4684 | /**
4685 | * Called when parser fully decodes a packet.
4686 | *
4687 | * @private
4688 | */;
4689 | _proto.ondecoded = function ondecoded(packet) {
4690 | var _this3 = this;
4691 | // the nextTick call prevents an exception in a user-provided event listener from triggering a disconnection due to a "parse error"
4692 | nextTick(function () {
4693 | _this3.emitReserved("packet", packet);
4694 | }, this.setTimeoutFn);
4695 | }
4696 | /**
4697 | * Called upon socket error.
4698 | *
4699 | * @private
4700 | */;
4701 | _proto.onerror = function onerror(err) {
4702 | debug$1("error", err);
4703 | this.emitReserved("error", err);
4704 | }
4705 | /**
4706 | * Creates a new socket for the given `nsp`.
4707 | *
4708 | * @return {Socket}
4709 | * @public
4710 | */;
4711 | _proto.socket = function socket(nsp, opts) {
4712 | var socket = this.nsps[nsp];
4713 | if (!socket) {
4714 | socket = new Socket(this, nsp, opts);
4715 | this.nsps[nsp] = socket;
4716 | } else if (this._autoConnect && !socket.active) {
4717 | socket.connect();
4718 | }
4719 | return socket;
4720 | }
4721 | /**
4722 | * Called upon a socket close.
4723 | *
4724 | * @param socket
4725 | * @private
4726 | */;
4727 | _proto._destroy = function _destroy(socket) {
4728 | var nsps = Object.keys(this.nsps);
4729 | for (var _i = 0, _nsps = nsps; _i < _nsps.length; _i++) {
4730 | var nsp = _nsps[_i];
4731 | var _socket = this.nsps[nsp];
4732 | if (_socket.active) {
4733 | debug$1("socket %s is still active, skipping close", nsp);
4734 | return;
4735 | }
4736 | }
4737 | this._close();
4738 | }
4739 | /**
4740 | * Writes a packet.
4741 | *
4742 | * @param packet
4743 | * @private
4744 | */;
4745 | _proto._packet = function _packet(packet) {
4746 | debug$1("writing packet %j", packet);
4747 | var encodedPackets = this.encoder.encode(packet);
4748 | for (var i = 0; i < encodedPackets.length; i++) {
4749 | this.engine.write(encodedPackets[i], packet.options);
4750 | }
4751 | }
4752 | /**
4753 | * Clean up transport subscriptions and packet buffer.
4754 | *
4755 | * @private
4756 | */;
4757 | _proto.cleanup = function cleanup() {
4758 | debug$1("cleanup");
4759 | this.subs.forEach(function (subDestroy) {
4760 | return subDestroy();
4761 | });
4762 | this.subs.length = 0;
4763 | this.decoder.destroy();
4764 | }
4765 | /**
4766 | * Close the current socket.
4767 | *
4768 | * @private
4769 | */;
4770 | _proto._close = function _close() {
4771 | debug$1("disconnect");
4772 | this.skipReconnect = true;
4773 | this._reconnecting = false;
4774 | this.onclose("forced close");
4775 | }
4776 | /**
4777 | * Alias for close()
4778 | *
4779 | * @private
4780 | */;
4781 | _proto.disconnect = function disconnect() {
4782 | return this._close();
4783 | }
4784 | /**
4785 | * Called when:
4786 | *
4787 | * - the low-level engine is closed
4788 | * - the parser encountered a badly formatted packet
4789 | * - all sockets are disconnected
4790 | *
4791 | * @private
4792 | */;
4793 | _proto.onclose = function onclose(reason, description) {
4794 | var _a;
4795 | debug$1("closed due to %s", reason);
4796 | this.cleanup();
4797 | (_a = this.engine) === null || _a === void 0 ? void 0 : _a.close();
4798 | this.backoff.reset();
4799 | this._readyState = "closed";
4800 | this.emitReserved("close", reason, description);
4801 | if (this._reconnection && !this.skipReconnect) {
4802 | this.reconnect();
4803 | }
4804 | }
4805 | /**
4806 | * Attempt a reconnection.
4807 | *
4808 | * @private
4809 | */;
4810 | _proto.reconnect = function reconnect() {
4811 | var _this4 = this;
4812 | if (this._reconnecting || this.skipReconnect) return this;
4813 | var self = this;
4814 | if (this.backoff.attempts >= this._reconnectionAttempts) {
4815 | debug$1("reconnect failed");
4816 | this.backoff.reset();
4817 | this.emitReserved("reconnect_failed");
4818 | this._reconnecting = false;
4819 | } else {
4820 | var delay = this.backoff.duration();
4821 | debug$1("will wait %dms before reconnect attempt", delay);
4822 | this._reconnecting = true;
4823 | var timer = this.setTimeoutFn(function () {
4824 | if (self.skipReconnect) return;
4825 | debug$1("attempting reconnect");
4826 | _this4.emitReserved("reconnect_attempt", self.backoff.attempts);
4827 | // check again for the case socket closed in above events
4828 | if (self.skipReconnect) return;
4829 | self.open(function (err) {
4830 | if (err) {
4831 | debug$1("reconnect attempt error");
4832 | self._reconnecting = false;
4833 | self.reconnect();
4834 | _this4.emitReserved("reconnect_error", err);
4835 | } else {
4836 | debug$1("reconnect success");
4837 | self.onreconnect();
4838 | }
4839 | });
4840 | }, delay);
4841 | if (this.opts.autoUnref) {
4842 | timer.unref();
4843 | }
4844 | this.subs.push(function () {
4845 | _this4.clearTimeoutFn(timer);
4846 | });
4847 | }
4848 | }
4849 | /**
4850 | * Called upon successful reconnect.
4851 | *
4852 | * @private
4853 | */;
4854 | _proto.onreconnect = function onreconnect() {
4855 | var attempt = this.backoff.attempts;
4856 | this._reconnecting = false;
4857 | this.backoff.reset();
4858 | this.emitReserved("reconnect", attempt);
4859 | };
4860 | return Manager;
4861 | }(Emitter);
4862 |
4863 | var debug = debugModule("socket.io-client"); // debug()
4864 | /**
4865 | * Managers cache.
4866 | */
4867 | var cache = {};
4868 | function lookup(uri, opts) {
4869 | if (_typeof(uri) === "object") {
4870 | opts = uri;
4871 | uri = undefined;
4872 | }
4873 | opts = opts || {};
4874 | var parsed = url(uri, opts.path || "/socket.io");
4875 | var source = parsed.source;
4876 | var id = parsed.id;
4877 | var path = parsed.path;
4878 | var sameNamespace = cache[id] && path in cache[id]["nsps"];
4879 | var newConnection = opts.forceNew || opts["force new connection"] || false === opts.multiplex || sameNamespace;
4880 | var io;
4881 | if (newConnection) {
4882 | debug("ignoring socket cache for %s", source);
4883 | io = new Manager(source, opts);
4884 | } else {
4885 | if (!cache[id]) {
4886 | debug("new io instance for %s", source);
4887 | cache[id] = new Manager(source, opts);
4888 | }
4889 | io = cache[id];
4890 | }
4891 | if (parsed.query && !opts.query) {
4892 | opts.query = parsed.queryKey;
4893 | }
4894 | return io.socket(parsed.path, opts);
4895 | }
4896 | // so that "lookup" can be used both as a function (e.g. `io(...)`) and as a
4897 | // namespace (e.g. `io.connect(...)`), for backward compatibility
4898 | _extends(lookup, {
4899 | Manager: Manager,
4900 | Socket: Socket,
4901 | io: lookup,
4902 | connect: lookup
4903 | });
4904 |
4905 | return lookup;
4906 |
4907 | }));
4908 | //# sourceMappingURL=socket.io.js.map
4909 |
```