diff --git "a/node_modules/@gradio/client/dist/wrapper-6f348d45.js" "b/node_modules/@gradio/client/dist/wrapper-6f348d45.js" new file mode 100644--- /dev/null +++ "b/node_modules/@gradio/client/dist/wrapper-6f348d45.js" @@ -0,0 +1,3457 @@ +import require$$0 from "stream"; +import require$$0$1 from "zlib"; +import require$$0$2 from "buffer"; +import require$$3 from "net"; +import require$$4 from "tls"; +import require$$5 from "crypto"; +import require$$0$3 from "events"; +import require$$1$1 from "https"; +import require$$2 from "http"; +import require$$7 from "url"; +function getDefaultExportFromCjs(x) { + return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, "default") ? x["default"] : x; +} +function getAugmentedNamespace(n) { + if (n.__esModule) + return n; + var f = n.default; + if (typeof f == "function") { + var a = function a2() { + if (this instanceof a2) { + var args = [null]; + args.push.apply(args, arguments); + var Ctor = Function.bind.apply(f, args); + return new Ctor(); + } + return f.apply(this, arguments); + }; + a.prototype = f.prototype; + } else + a = {}; + Object.defineProperty(a, "__esModule", { value: true }); + Object.keys(n).forEach(function(k) { + var d = Object.getOwnPropertyDescriptor(n, k); + Object.defineProperty(a, k, d.get ? d : { + enumerable: true, + get: function() { + return n[k]; + } + }); + }); + return a; +} +const { Duplex } = require$$0; +function emitClose$1(stream2) { + stream2.emit("close"); +} +function duplexOnEnd() { + if (!this.destroyed && this._writableState.finished) { + this.destroy(); + } +} +function duplexOnError(err) { + this.removeListener("error", duplexOnError); + this.destroy(); + if (this.listenerCount("error") === 0) { + this.emit("error", err); + } +} +function createWebSocketStream(ws, options) { + let terminateOnDestroy = true; + const duplex = new Duplex({ + ...options, + autoDestroy: false, + emitClose: false, + objectMode: false, + writableObjectMode: false + }); + ws.on("message", function message(msg, isBinary) { + const data = !isBinary && duplex._readableState.objectMode ? msg.toString() : msg; + if (!duplex.push(data)) + ws.pause(); + }); + ws.once("error", function error2(err) { + if (duplex.destroyed) + return; + terminateOnDestroy = false; + duplex.destroy(err); + }); + ws.once("close", function close() { + if (duplex.destroyed) + return; + duplex.push(null); + }); + duplex._destroy = function(err, callback) { + if (ws.readyState === ws.CLOSED) { + callback(err); + process.nextTick(emitClose$1, duplex); + return; + } + let called = false; + ws.once("error", function error2(err2) { + called = true; + callback(err2); + }); + ws.once("close", function close() { + if (!called) + callback(err); + process.nextTick(emitClose$1, duplex); + }); + if (terminateOnDestroy) + ws.terminate(); + }; + duplex._final = function(callback) { + if (ws.readyState === ws.CONNECTING) { + ws.once("open", function open() { + duplex._final(callback); + }); + return; + } + if (ws._socket === null) + return; + if (ws._socket._writableState.finished) { + callback(); + if (duplex._readableState.endEmitted) + duplex.destroy(); + } else { + ws._socket.once("finish", function finish() { + callback(); + }); + ws.close(); + } + }; + duplex._read = function() { + if (ws.isPaused) + ws.resume(); + }; + duplex._write = function(chunk, encoding, callback) { + if (ws.readyState === ws.CONNECTING) { + ws.once("open", function open() { + duplex._write(chunk, encoding, callback); + }); + return; + } + ws.send(chunk, callback); + }; + duplex.on("end", duplexOnEnd); + duplex.on("error", duplexOnError); + return duplex; +} +var stream = createWebSocketStream; +const stream$1 = /* @__PURE__ */ getDefaultExportFromCjs(stream); +var bufferUtil$1 = { exports: {} }; +var constants = { + BINARY_TYPES: ["nodebuffer", "arraybuffer", "fragments"], + EMPTY_BUFFER: Buffer.alloc(0), + GUID: "258EAFA5-E914-47DA-95CA-C5AB0DC85B11", + kForOnEventAttribute: Symbol("kIsForOnEventAttribute"), + kListener: Symbol("kListener"), + kStatusCode: Symbol("status-code"), + kWebSocket: Symbol("websocket"), + NOOP: () => { + } +}; +var unmask$1; +var mask; +const { EMPTY_BUFFER: EMPTY_BUFFER$3 } = constants; +const FastBuffer$2 = Buffer[Symbol.species]; +function concat$1(list, totalLength) { + if (list.length === 0) + return EMPTY_BUFFER$3; + if (list.length === 1) + return list[0]; + const target = Buffer.allocUnsafe(totalLength); + let offset = 0; + for (let i = 0; i < list.length; i++) { + const buf = list[i]; + target.set(buf, offset); + offset += buf.length; + } + if (offset < totalLength) { + return new FastBuffer$2(target.buffer, target.byteOffset, offset); + } + return target; +} +function _mask(source, mask2, output, offset, length) { + for (let i = 0; i < length; i++) { + output[offset + i] = source[i] ^ mask2[i & 3]; + } +} +function _unmask(buffer, mask2) { + for (let i = 0; i < buffer.length; i++) { + buffer[i] ^= mask2[i & 3]; + } +} +function toArrayBuffer$1(buf) { + if (buf.length === buf.buffer.byteLength) { + return buf.buffer; + } + return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.length); +} +function toBuffer$2(data) { + toBuffer$2.readOnly = true; + if (Buffer.isBuffer(data)) + return data; + let buf; + if (data instanceof ArrayBuffer) { + buf = new FastBuffer$2(data); + } else if (ArrayBuffer.isView(data)) { + buf = new FastBuffer$2(data.buffer, data.byteOffset, data.byteLength); + } else { + buf = Buffer.from(data); + toBuffer$2.readOnly = false; + } + return buf; +} +bufferUtil$1.exports = { + concat: concat$1, + mask: _mask, + toArrayBuffer: toArrayBuffer$1, + toBuffer: toBuffer$2, + unmask: _unmask +}; +if (!process.env.WS_NO_BUFFER_UTIL) { + try { + const bufferUtil2 = require("bufferutil"); + mask = bufferUtil$1.exports.mask = function(source, mask2, output, offset, length) { + if (length < 48) + _mask(source, mask2, output, offset, length); + else + bufferUtil2.mask(source, mask2, output, offset, length); + }; + unmask$1 = bufferUtil$1.exports.unmask = function(buffer, mask2) { + if (buffer.length < 32) + _unmask(buffer, mask2); + else + bufferUtil2.unmask(buffer, mask2); + }; + } catch (e) { + } +} +var bufferUtilExports = bufferUtil$1.exports; +const kDone = Symbol("kDone"); +const kRun = Symbol("kRun"); +let Limiter$1 = class Limiter { + /** + * Creates a new `Limiter`. + * + * @param {Number} [concurrency=Infinity] The maximum number of jobs allowed + * to run concurrently + */ + constructor(concurrency) { + this[kDone] = () => { + this.pending--; + this[kRun](); + }; + this.concurrency = concurrency || Infinity; + this.jobs = []; + this.pending = 0; + } + /** + * Adds a job to the queue. + * + * @param {Function} job The job to run + * @public + */ + add(job) { + this.jobs.push(job); + this[kRun](); + } + /** + * Removes a job from the queue and runs it if possible. + * + * @private + */ + [kRun]() { + if (this.pending === this.concurrency) + return; + if (this.jobs.length) { + const job = this.jobs.shift(); + this.pending++; + job(this[kDone]); + } + } +}; +var limiter = Limiter$1; +const zlib = require$$0$1; +const bufferUtil = bufferUtilExports; +const Limiter2 = limiter; +const { kStatusCode: kStatusCode$2 } = constants; +const FastBuffer$1 = Buffer[Symbol.species]; +const TRAILER = Buffer.from([0, 0, 255, 255]); +const kPerMessageDeflate = Symbol("permessage-deflate"); +const kTotalLength = Symbol("total-length"); +const kCallback = Symbol("callback"); +const kBuffers = Symbol("buffers"); +const kError$1 = Symbol("error"); +let zlibLimiter; +let PerMessageDeflate$4 = class PerMessageDeflate { + /** + * Creates a PerMessageDeflate instance. + * + * @param {Object} [options] Configuration options + * @param {(Boolean|Number)} [options.clientMaxWindowBits] Advertise support + * for, or request, a custom client window size + * @param {Boolean} [options.clientNoContextTakeover=false] Advertise/ + * acknowledge disabling of client context takeover + * @param {Number} [options.concurrencyLimit=10] The number of concurrent + * calls to zlib + * @param {(Boolean|Number)} [options.serverMaxWindowBits] Request/confirm the + * use of a custom server window size + * @param {Boolean} [options.serverNoContextTakeover=false] Request/accept + * disabling of server context takeover + * @param {Number} [options.threshold=1024] Size (in bytes) below which + * messages should not be compressed if context takeover is disabled + * @param {Object} [options.zlibDeflateOptions] Options to pass to zlib on + * deflate + * @param {Object} [options.zlibInflateOptions] Options to pass to zlib on + * inflate + * @param {Boolean} [isServer=false] Create the instance in either server or + * client mode + * @param {Number} [maxPayload=0] The maximum allowed message length + */ + constructor(options, isServer, maxPayload) { + this._maxPayload = maxPayload | 0; + this._options = options || {}; + this._threshold = this._options.threshold !== void 0 ? this._options.threshold : 1024; + this._isServer = !!isServer; + this._deflate = null; + this._inflate = null; + this.params = null; + if (!zlibLimiter) { + const concurrency = this._options.concurrencyLimit !== void 0 ? this._options.concurrencyLimit : 10; + zlibLimiter = new Limiter2(concurrency); + } + } + /** + * @type {String} + */ + static get extensionName() { + return "permessage-deflate"; + } + /** + * Create an extension negotiation offer. + * + * @return {Object} Extension parameters + * @public + */ + offer() { + const params = {}; + if (this._options.serverNoContextTakeover) { + params.server_no_context_takeover = true; + } + if (this._options.clientNoContextTakeover) { + params.client_no_context_takeover = true; + } + if (this._options.serverMaxWindowBits) { + params.server_max_window_bits = this._options.serverMaxWindowBits; + } + if (this._options.clientMaxWindowBits) { + params.client_max_window_bits = this._options.clientMaxWindowBits; + } else if (this._options.clientMaxWindowBits == null) { + params.client_max_window_bits = true; + } + return params; + } + /** + * Accept an extension negotiation offer/response. + * + * @param {Array} configurations The extension negotiation offers/reponse + * @return {Object} Accepted configuration + * @public + */ + accept(configurations) { + configurations = this.normalizeParams(configurations); + this.params = this._isServer ? this.acceptAsServer(configurations) : this.acceptAsClient(configurations); + return this.params; + } + /** + * Releases all resources used by the extension. + * + * @public + */ + cleanup() { + if (this._inflate) { + this._inflate.close(); + this._inflate = null; + } + if (this._deflate) { + const callback = this._deflate[kCallback]; + this._deflate.close(); + this._deflate = null; + if (callback) { + callback( + new Error( + "The deflate stream was closed while data was being processed" + ) + ); + } + } + } + /** + * Accept an extension negotiation offer. + * + * @param {Array} offers The extension negotiation offers + * @return {Object} Accepted configuration + * @private + */ + acceptAsServer(offers) { + const opts = this._options; + const accepted = offers.find((params) => { + if (opts.serverNoContextTakeover === false && params.server_no_context_takeover || params.server_max_window_bits && (opts.serverMaxWindowBits === false || typeof opts.serverMaxWindowBits === "number" && opts.serverMaxWindowBits > params.server_max_window_bits) || typeof opts.clientMaxWindowBits === "number" && !params.client_max_window_bits) { + return false; + } + return true; + }); + if (!accepted) { + throw new Error("None of the extension offers can be accepted"); + } + if (opts.serverNoContextTakeover) { + accepted.server_no_context_takeover = true; + } + if (opts.clientNoContextTakeover) { + accepted.client_no_context_takeover = true; + } + if (typeof opts.serverMaxWindowBits === "number") { + accepted.server_max_window_bits = opts.serverMaxWindowBits; + } + if (typeof opts.clientMaxWindowBits === "number") { + accepted.client_max_window_bits = opts.clientMaxWindowBits; + } else if (accepted.client_max_window_bits === true || opts.clientMaxWindowBits === false) { + delete accepted.client_max_window_bits; + } + return accepted; + } + /** + * Accept the extension negotiation response. + * + * @param {Array} response The extension negotiation response + * @return {Object} Accepted configuration + * @private + */ + acceptAsClient(response) { + const params = response[0]; + if (this._options.clientNoContextTakeover === false && params.client_no_context_takeover) { + throw new Error('Unexpected parameter "client_no_context_takeover"'); + } + if (!params.client_max_window_bits) { + if (typeof this._options.clientMaxWindowBits === "number") { + params.client_max_window_bits = this._options.clientMaxWindowBits; + } + } else if (this._options.clientMaxWindowBits === false || typeof this._options.clientMaxWindowBits === "number" && params.client_max_window_bits > this._options.clientMaxWindowBits) { + throw new Error( + 'Unexpected or invalid parameter "client_max_window_bits"' + ); + } + return params; + } + /** + * Normalize parameters. + * + * @param {Array} configurations The extension negotiation offers/reponse + * @return {Array} The offers/response with normalized parameters + * @private + */ + normalizeParams(configurations) { + configurations.forEach((params) => { + Object.keys(params).forEach((key) => { + let value = params[key]; + if (value.length > 1) { + throw new Error(`Parameter "${key}" must have only a single value`); + } + value = value[0]; + if (key === "client_max_window_bits") { + if (value !== true) { + const num = +value; + if (!Number.isInteger(num) || num < 8 || num > 15) { + throw new TypeError( + `Invalid value for parameter "${key}": ${value}` + ); + } + value = num; + } else if (!this._isServer) { + throw new TypeError( + `Invalid value for parameter "${key}": ${value}` + ); + } + } else if (key === "server_max_window_bits") { + const num = +value; + if (!Number.isInteger(num) || num < 8 || num > 15) { + throw new TypeError( + `Invalid value for parameter "${key}": ${value}` + ); + } + value = num; + } else if (key === "client_no_context_takeover" || key === "server_no_context_takeover") { + if (value !== true) { + throw new TypeError( + `Invalid value for parameter "${key}": ${value}` + ); + } + } else { + throw new Error(`Unknown parameter "${key}"`); + } + params[key] = value; + }); + }); + return configurations; + } + /** + * Decompress data. Concurrency limited. + * + * @param {Buffer} data Compressed data + * @param {Boolean} fin Specifies whether or not this is the last fragment + * @param {Function} callback Callback + * @public + */ + decompress(data, fin, callback) { + zlibLimiter.add((done) => { + this._decompress(data, fin, (err, result) => { + done(); + callback(err, result); + }); + }); + } + /** + * Compress data. Concurrency limited. + * + * @param {(Buffer|String)} data Data to compress + * @param {Boolean} fin Specifies whether or not this is the last fragment + * @param {Function} callback Callback + * @public + */ + compress(data, fin, callback) { + zlibLimiter.add((done) => { + this._compress(data, fin, (err, result) => { + done(); + callback(err, result); + }); + }); + } + /** + * Decompress data. + * + * @param {Buffer} data Compressed data + * @param {Boolean} fin Specifies whether or not this is the last fragment + * @param {Function} callback Callback + * @private + */ + _decompress(data, fin, callback) { + const endpoint = this._isServer ? "client" : "server"; + if (!this._inflate) { + const key = `${endpoint}_max_window_bits`; + const windowBits = typeof this.params[key] !== "number" ? zlib.Z_DEFAULT_WINDOWBITS : this.params[key]; + this._inflate = zlib.createInflateRaw({ + ...this._options.zlibInflateOptions, + windowBits + }); + this._inflate[kPerMessageDeflate] = this; + this._inflate[kTotalLength] = 0; + this._inflate[kBuffers] = []; + this._inflate.on("error", inflateOnError); + this._inflate.on("data", inflateOnData); + } + this._inflate[kCallback] = callback; + this._inflate.write(data); + if (fin) + this._inflate.write(TRAILER); + this._inflate.flush(() => { + const err = this._inflate[kError$1]; + if (err) { + this._inflate.close(); + this._inflate = null; + callback(err); + return; + } + const data2 = bufferUtil.concat( + this._inflate[kBuffers], + this._inflate[kTotalLength] + ); + if (this._inflate._readableState.endEmitted) { + this._inflate.close(); + this._inflate = null; + } else { + this._inflate[kTotalLength] = 0; + this._inflate[kBuffers] = []; + if (fin && this.params[`${endpoint}_no_context_takeover`]) { + this._inflate.reset(); + } + } + callback(null, data2); + }); + } + /** + * Compress data. + * + * @param {(Buffer|String)} data Data to compress + * @param {Boolean} fin Specifies whether or not this is the last fragment + * @param {Function} callback Callback + * @private + */ + _compress(data, fin, callback) { + const endpoint = this._isServer ? "server" : "client"; + if (!this._deflate) { + const key = `${endpoint}_max_window_bits`; + const windowBits = typeof this.params[key] !== "number" ? zlib.Z_DEFAULT_WINDOWBITS : this.params[key]; + this._deflate = zlib.createDeflateRaw({ + ...this._options.zlibDeflateOptions, + windowBits + }); + this._deflate[kTotalLength] = 0; + this._deflate[kBuffers] = []; + this._deflate.on("data", deflateOnData); + } + this._deflate[kCallback] = callback; + this._deflate.write(data); + this._deflate.flush(zlib.Z_SYNC_FLUSH, () => { + if (!this._deflate) { + return; + } + let data2 = bufferUtil.concat( + this._deflate[kBuffers], + this._deflate[kTotalLength] + ); + if (fin) { + data2 = new FastBuffer$1(data2.buffer, data2.byteOffset, data2.length - 4); + } + this._deflate[kCallback] = null; + this._deflate[kTotalLength] = 0; + this._deflate[kBuffers] = []; + if (fin && this.params[`${endpoint}_no_context_takeover`]) { + this._deflate.reset(); + } + callback(null, data2); + }); + } +}; +var permessageDeflate = PerMessageDeflate$4; +function deflateOnData(chunk) { + this[kBuffers].push(chunk); + this[kTotalLength] += chunk.length; +} +function inflateOnData(chunk) { + this[kTotalLength] += chunk.length; + if (this[kPerMessageDeflate]._maxPayload < 1 || this[kTotalLength] <= this[kPerMessageDeflate]._maxPayload) { + this[kBuffers].push(chunk); + return; + } + this[kError$1] = new RangeError("Max payload size exceeded"); + this[kError$1].code = "WS_ERR_UNSUPPORTED_MESSAGE_LENGTH"; + this[kError$1][kStatusCode$2] = 1009; + this.removeListener("data", inflateOnData); + this.reset(); +} +function inflateOnError(err) { + this[kPerMessageDeflate]._inflate = null; + err[kStatusCode$2] = 1007; + this[kCallback](err); +} +var validation = { exports: {} }; +const __viteOptionalPeerDep_utf8Validate_ws = {}; +const __viteOptionalPeerDep_utf8Validate_ws$1 = /* @__PURE__ */ Object.freeze(/* @__PURE__ */ Object.defineProperty({ + __proto__: null, + default: __viteOptionalPeerDep_utf8Validate_ws +}, Symbol.toStringTag, { value: "Module" })); +const require$$1 = /* @__PURE__ */ getAugmentedNamespace(__viteOptionalPeerDep_utf8Validate_ws$1); +var isValidUTF8_1; +const { isUtf8 } = require$$0$2; +const tokenChars$2 = [ + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + // 0 - 15 + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + // 16 - 31 + 0, + 1, + 0, + 1, + 1, + 1, + 1, + 1, + 0, + 0, + 1, + 1, + 0, + 1, + 1, + 0, + // 32 - 47 + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 0, + 0, + 0, + 0, + 0, + 0, + // 48 - 63 + 0, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + // 64 - 79 + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 0, + 0, + 0, + 1, + 1, + // 80 - 95 + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + // 96 - 111 + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 1, + 0, + 1, + 0, + 1, + 0 + // 112 - 127 +]; +function isValidStatusCode$2(code) { + return code >= 1e3 && code <= 1014 && code !== 1004 && code !== 1005 && code !== 1006 || code >= 3e3 && code <= 4999; +} +function _isValidUTF8(buf) { + const len = buf.length; + let i = 0; + while (i < len) { + if ((buf[i] & 128) === 0) { + i++; + } else if ((buf[i] & 224) === 192) { + if (i + 1 === len || (buf[i + 1] & 192) !== 128 || (buf[i] & 254) === 192) { + return false; + } + i += 2; + } else if ((buf[i] & 240) === 224) { + if (i + 2 >= len || (buf[i + 1] & 192) !== 128 || (buf[i + 2] & 192) !== 128 || buf[i] === 224 && (buf[i + 1] & 224) === 128 || // Overlong + buf[i] === 237 && (buf[i + 1] & 224) === 160) { + return false; + } + i += 3; + } else if ((buf[i] & 248) === 240) { + if (i + 3 >= len || (buf[i + 1] & 192) !== 128 || (buf[i + 2] & 192) !== 128 || (buf[i + 3] & 192) !== 128 || buf[i] === 240 && (buf[i + 1] & 240) === 128 || // Overlong + buf[i] === 244 && buf[i + 1] > 143 || buf[i] > 244) { + return false; + } + i += 4; + } else { + return false; + } + } + return true; +} +validation.exports = { + isValidStatusCode: isValidStatusCode$2, + isValidUTF8: _isValidUTF8, + tokenChars: tokenChars$2 +}; +if (isUtf8) { + isValidUTF8_1 = validation.exports.isValidUTF8 = function(buf) { + return buf.length < 24 ? _isValidUTF8(buf) : isUtf8(buf); + }; +} else if (!process.env.WS_NO_UTF_8_VALIDATE) { + try { + const isValidUTF82 = require$$1; + isValidUTF8_1 = validation.exports.isValidUTF8 = function(buf) { + return buf.length < 32 ? _isValidUTF8(buf) : isValidUTF82(buf); + }; + } catch (e) { + } +} +var validationExports = validation.exports; +const { Writable } = require$$0; +const PerMessageDeflate$3 = permessageDeflate; +const { + BINARY_TYPES: BINARY_TYPES$1, + EMPTY_BUFFER: EMPTY_BUFFER$2, + kStatusCode: kStatusCode$1, + kWebSocket: kWebSocket$2 +} = constants; +const { concat, toArrayBuffer, unmask } = bufferUtilExports; +const { isValidStatusCode: isValidStatusCode$1, isValidUTF8 } = validationExports; +const FastBuffer = Buffer[Symbol.species]; +const GET_INFO = 0; +const GET_PAYLOAD_LENGTH_16 = 1; +const GET_PAYLOAD_LENGTH_64 = 2; +const GET_MASK = 3; +const GET_DATA = 4; +const INFLATING = 5; +let Receiver$1 = class Receiver extends Writable { + /** + * Creates a Receiver instance. + * + * @param {Object} [options] Options object + * @param {String} [options.binaryType=nodebuffer] The type for binary data + * @param {Object} [options.extensions] An object containing the negotiated + * extensions + * @param {Boolean} [options.isServer=false] Specifies whether to operate in + * client or server mode + * @param {Number} [options.maxPayload=0] The maximum allowed message length + * @param {Boolean} [options.skipUTF8Validation=false] Specifies whether or + * not to skip UTF-8 validation for text and close messages + */ + constructor(options = {}) { + super(); + this._binaryType = options.binaryType || BINARY_TYPES$1[0]; + this._extensions = options.extensions || {}; + this._isServer = !!options.isServer; + this._maxPayload = options.maxPayload | 0; + this._skipUTF8Validation = !!options.skipUTF8Validation; + this[kWebSocket$2] = void 0; + this._bufferedBytes = 0; + this._buffers = []; + this._compressed = false; + this._payloadLength = 0; + this._mask = void 0; + this._fragmented = 0; + this._masked = false; + this._fin = false; + this._opcode = 0; + this._totalPayloadLength = 0; + this._messageLength = 0; + this._fragments = []; + this._state = GET_INFO; + this._loop = false; + } + /** + * Implements `Writable.prototype._write()`. + * + * @param {Buffer} chunk The chunk of data to write + * @param {String} encoding The character encoding of `chunk` + * @param {Function} cb Callback + * @private + */ + _write(chunk, encoding, cb) { + if (this._opcode === 8 && this._state == GET_INFO) + return cb(); + this._bufferedBytes += chunk.length; + this._buffers.push(chunk); + this.startLoop(cb); + } + /** + * Consumes `n` bytes from the buffered data. + * + * @param {Number} n The number of bytes to consume + * @return {Buffer} The consumed bytes + * @private + */ + consume(n) { + this._bufferedBytes -= n; + if (n === this._buffers[0].length) + return this._buffers.shift(); + if (n < this._buffers[0].length) { + const buf = this._buffers[0]; + this._buffers[0] = new FastBuffer( + buf.buffer, + buf.byteOffset + n, + buf.length - n + ); + return new FastBuffer(buf.buffer, buf.byteOffset, n); + } + const dst = Buffer.allocUnsafe(n); + do { + const buf = this._buffers[0]; + const offset = dst.length - n; + if (n >= buf.length) { + dst.set(this._buffers.shift(), offset); + } else { + dst.set(new Uint8Array(buf.buffer, buf.byteOffset, n), offset); + this._buffers[0] = new FastBuffer( + buf.buffer, + buf.byteOffset + n, + buf.length - n + ); + } + n -= buf.length; + } while (n > 0); + return dst; + } + /** + * Starts the parsing loop. + * + * @param {Function} cb Callback + * @private + */ + startLoop(cb) { + let err; + this._loop = true; + do { + switch (this._state) { + case GET_INFO: + err = this.getInfo(); + break; + case GET_PAYLOAD_LENGTH_16: + err = this.getPayloadLength16(); + break; + case GET_PAYLOAD_LENGTH_64: + err = this.getPayloadLength64(); + break; + case GET_MASK: + this.getMask(); + break; + case GET_DATA: + err = this.getData(cb); + break; + default: + this._loop = false; + return; + } + } while (this._loop); + cb(err); + } + /** + * Reads the first two bytes of a frame. + * + * @return {(RangeError|undefined)} A possible error + * @private + */ + getInfo() { + if (this._bufferedBytes < 2) { + this._loop = false; + return; + } + const buf = this.consume(2); + if ((buf[0] & 48) !== 0) { + this._loop = false; + return error( + RangeError, + "RSV2 and RSV3 must be clear", + true, + 1002, + "WS_ERR_UNEXPECTED_RSV_2_3" + ); + } + const compressed = (buf[0] & 64) === 64; + if (compressed && !this._extensions[PerMessageDeflate$3.extensionName]) { + this._loop = false; + return error( + RangeError, + "RSV1 must be clear", + true, + 1002, + "WS_ERR_UNEXPECTED_RSV_1" + ); + } + this._fin = (buf[0] & 128) === 128; + this._opcode = buf[0] & 15; + this._payloadLength = buf[1] & 127; + if (this._opcode === 0) { + if (compressed) { + this._loop = false; + return error( + RangeError, + "RSV1 must be clear", + true, + 1002, + "WS_ERR_UNEXPECTED_RSV_1" + ); + } + if (!this._fragmented) { + this._loop = false; + return error( + RangeError, + "invalid opcode 0", + true, + 1002, + "WS_ERR_INVALID_OPCODE" + ); + } + this._opcode = this._fragmented; + } else if (this._opcode === 1 || this._opcode === 2) { + if (this._fragmented) { + this._loop = false; + return error( + RangeError, + `invalid opcode ${this._opcode}`, + true, + 1002, + "WS_ERR_INVALID_OPCODE" + ); + } + this._compressed = compressed; + } else if (this._opcode > 7 && this._opcode < 11) { + if (!this._fin) { + this._loop = false; + return error( + RangeError, + "FIN must be set", + true, + 1002, + "WS_ERR_EXPECTED_FIN" + ); + } + if (compressed) { + this._loop = false; + return error( + RangeError, + "RSV1 must be clear", + true, + 1002, + "WS_ERR_UNEXPECTED_RSV_1" + ); + } + if (this._payloadLength > 125 || this._opcode === 8 && this._payloadLength === 1) { + this._loop = false; + return error( + RangeError, + `invalid payload length ${this._payloadLength}`, + true, + 1002, + "WS_ERR_INVALID_CONTROL_PAYLOAD_LENGTH" + ); + } + } else { + this._loop = false; + return error( + RangeError, + `invalid opcode ${this._opcode}`, + true, + 1002, + "WS_ERR_INVALID_OPCODE" + ); + } + if (!this._fin && !this._fragmented) + this._fragmented = this._opcode; + this._masked = (buf[1] & 128) === 128; + if (this._isServer) { + if (!this._masked) { + this._loop = false; + return error( + RangeError, + "MASK must be set", + true, + 1002, + "WS_ERR_EXPECTED_MASK" + ); + } + } else if (this._masked) { + this._loop = false; + return error( + RangeError, + "MASK must be clear", + true, + 1002, + "WS_ERR_UNEXPECTED_MASK" + ); + } + if (this._payloadLength === 126) + this._state = GET_PAYLOAD_LENGTH_16; + else if (this._payloadLength === 127) + this._state = GET_PAYLOAD_LENGTH_64; + else + return this.haveLength(); + } + /** + * Gets extended payload length (7+16). + * + * @return {(RangeError|undefined)} A possible error + * @private + */ + getPayloadLength16() { + if (this._bufferedBytes < 2) { + this._loop = false; + return; + } + this._payloadLength = this.consume(2).readUInt16BE(0); + return this.haveLength(); + } + /** + * Gets extended payload length (7+64). + * + * @return {(RangeError|undefined)} A possible error + * @private + */ + getPayloadLength64() { + if (this._bufferedBytes < 8) { + this._loop = false; + return; + } + const buf = this.consume(8); + const num = buf.readUInt32BE(0); + if (num > Math.pow(2, 53 - 32) - 1) { + this._loop = false; + return error( + RangeError, + "Unsupported WebSocket frame: payload length > 2^53 - 1", + false, + 1009, + "WS_ERR_UNSUPPORTED_DATA_PAYLOAD_LENGTH" + ); + } + this._payloadLength = num * Math.pow(2, 32) + buf.readUInt32BE(4); + return this.haveLength(); + } + /** + * Payload length has been read. + * + * @return {(RangeError|undefined)} A possible error + * @private + */ + haveLength() { + if (this._payloadLength && this._opcode < 8) { + this._totalPayloadLength += this._payloadLength; + if (this._totalPayloadLength > this._maxPayload && this._maxPayload > 0) { + this._loop = false; + return error( + RangeError, + "Max payload size exceeded", + false, + 1009, + "WS_ERR_UNSUPPORTED_MESSAGE_LENGTH" + ); + } + } + if (this._masked) + this._state = GET_MASK; + else + this._state = GET_DATA; + } + /** + * Reads mask bytes. + * + * @private + */ + getMask() { + if (this._bufferedBytes < 4) { + this._loop = false; + return; + } + this._mask = this.consume(4); + this._state = GET_DATA; + } + /** + * Reads data bytes. + * + * @param {Function} cb Callback + * @return {(Error|RangeError|undefined)} A possible error + * @private + */ + getData(cb) { + let data = EMPTY_BUFFER$2; + if (this._payloadLength) { + if (this._bufferedBytes < this._payloadLength) { + this._loop = false; + return; + } + data = this.consume(this._payloadLength); + if (this._masked && (this._mask[0] | this._mask[1] | this._mask[2] | this._mask[3]) !== 0) { + unmask(data, this._mask); + } + } + if (this._opcode > 7) + return this.controlMessage(data); + if (this._compressed) { + this._state = INFLATING; + this.decompress(data, cb); + return; + } + if (data.length) { + this._messageLength = this._totalPayloadLength; + this._fragments.push(data); + } + return this.dataMessage(); + } + /** + * Decompresses data. + * + * @param {Buffer} data Compressed data + * @param {Function} cb Callback + * @private + */ + decompress(data, cb) { + const perMessageDeflate = this._extensions[PerMessageDeflate$3.extensionName]; + perMessageDeflate.decompress(data, this._fin, (err, buf) => { + if (err) + return cb(err); + if (buf.length) { + this._messageLength += buf.length; + if (this._messageLength > this._maxPayload && this._maxPayload > 0) { + return cb( + error( + RangeError, + "Max payload size exceeded", + false, + 1009, + "WS_ERR_UNSUPPORTED_MESSAGE_LENGTH" + ) + ); + } + this._fragments.push(buf); + } + const er = this.dataMessage(); + if (er) + return cb(er); + this.startLoop(cb); + }); + } + /** + * Handles a data message. + * + * @return {(Error|undefined)} A possible error + * @private + */ + dataMessage() { + if (this._fin) { + const messageLength = this._messageLength; + const fragments = this._fragments; + this._totalPayloadLength = 0; + this._messageLength = 0; + this._fragmented = 0; + this._fragments = []; + if (this._opcode === 2) { + let data; + if (this._binaryType === "nodebuffer") { + data = concat(fragments, messageLength); + } else if (this._binaryType === "arraybuffer") { + data = toArrayBuffer(concat(fragments, messageLength)); + } else { + data = fragments; + } + this.emit("message", data, true); + } else { + const buf = concat(fragments, messageLength); + if (!this._skipUTF8Validation && !isValidUTF8(buf)) { + this._loop = false; + return error( + Error, + "invalid UTF-8 sequence", + true, + 1007, + "WS_ERR_INVALID_UTF8" + ); + } + this.emit("message", buf, false); + } + } + this._state = GET_INFO; + } + /** + * Handles a control message. + * + * @param {Buffer} data Data to handle + * @return {(Error|RangeError|undefined)} A possible error + * @private + */ + controlMessage(data) { + if (this._opcode === 8) { + this._loop = false; + if (data.length === 0) { + this.emit("conclude", 1005, EMPTY_BUFFER$2); + this.end(); + } else { + const code = data.readUInt16BE(0); + if (!isValidStatusCode$1(code)) { + return error( + RangeError, + `invalid status code ${code}`, + true, + 1002, + "WS_ERR_INVALID_CLOSE_CODE" + ); + } + const buf = new FastBuffer( + data.buffer, + data.byteOffset + 2, + data.length - 2 + ); + if (!this._skipUTF8Validation && !isValidUTF8(buf)) { + return error( + Error, + "invalid UTF-8 sequence", + true, + 1007, + "WS_ERR_INVALID_UTF8" + ); + } + this.emit("conclude", code, buf); + this.end(); + } + } else if (this._opcode === 9) { + this.emit("ping", data); + } else { + this.emit("pong", data); + } + this._state = GET_INFO; + } +}; +var receiver = Receiver$1; +function error(ErrorCtor, message, prefix, statusCode, errorCode) { + const err = new ErrorCtor( + prefix ? `Invalid WebSocket frame: ${message}` : message + ); + Error.captureStackTrace(err, error); + err.code = errorCode; + err[kStatusCode$1] = statusCode; + return err; +} +const receiver$1 = /* @__PURE__ */ getDefaultExportFromCjs(receiver); +const { randomFillSync } = require$$5; +const PerMessageDeflate$2 = permessageDeflate; +const { EMPTY_BUFFER: EMPTY_BUFFER$1 } = constants; +const { isValidStatusCode } = validationExports; +const { mask: applyMask, toBuffer: toBuffer$1 } = bufferUtilExports; +const kByteLength = Symbol("kByteLength"); +const maskBuffer = Buffer.alloc(4); +let Sender$1 = class Sender { + /** + * Creates a Sender instance. + * + * @param {(net.Socket|tls.Socket)} socket The connection socket + * @param {Object} [extensions] An object containing the negotiated extensions + * @param {Function} [generateMask] The function used to generate the masking + * key + */ + constructor(socket, extensions, generateMask) { + this._extensions = extensions || {}; + if (generateMask) { + this._generateMask = generateMask; + this._maskBuffer = Buffer.alloc(4); + } + this._socket = socket; + this._firstFragment = true; + this._compress = false; + this._bufferedBytes = 0; + this._deflating = false; + this._queue = []; + } + /** + * Frames a piece of data according to the HyBi WebSocket protocol. + * + * @param {(Buffer|String)} data The data to frame + * @param {Object} options Options object + * @param {Boolean} [options.fin=false] Specifies whether or not to set the + * FIN bit + * @param {Function} [options.generateMask] The function used to generate the + * masking key + * @param {Boolean} [options.mask=false] Specifies whether or not to mask + * `data` + * @param {Buffer} [options.maskBuffer] The buffer used to store the masking + * key + * @param {Number} options.opcode The opcode + * @param {Boolean} [options.readOnly=false] Specifies whether `data` can be + * modified + * @param {Boolean} [options.rsv1=false] Specifies whether or not to set the + * RSV1 bit + * @return {(Buffer|String)[]} The framed data + * @public + */ + static frame(data, options) { + let mask2; + let merge = false; + let offset = 2; + let skipMasking = false; + if (options.mask) { + mask2 = options.maskBuffer || maskBuffer; + if (options.generateMask) { + options.generateMask(mask2); + } else { + randomFillSync(mask2, 0, 4); + } + skipMasking = (mask2[0] | mask2[1] | mask2[2] | mask2[3]) === 0; + offset = 6; + } + let dataLength; + if (typeof data === "string") { + if ((!options.mask || skipMasking) && options[kByteLength] !== void 0) { + dataLength = options[kByteLength]; + } else { + data = Buffer.from(data); + dataLength = data.length; + } + } else { + dataLength = data.length; + merge = options.mask && options.readOnly && !skipMasking; + } + let payloadLength = dataLength; + if (dataLength >= 65536) { + offset += 8; + payloadLength = 127; + } else if (dataLength > 125) { + offset += 2; + payloadLength = 126; + } + const target = Buffer.allocUnsafe(merge ? dataLength + offset : offset); + target[0] = options.fin ? options.opcode | 128 : options.opcode; + if (options.rsv1) + target[0] |= 64; + target[1] = payloadLength; + if (payloadLength === 126) { + target.writeUInt16BE(dataLength, 2); + } else if (payloadLength === 127) { + target[2] = target[3] = 0; + target.writeUIntBE(dataLength, 4, 6); + } + if (!options.mask) + return [target, data]; + target[1] |= 128; + target[offset - 4] = mask2[0]; + target[offset - 3] = mask2[1]; + target[offset - 2] = mask2[2]; + target[offset - 1] = mask2[3]; + if (skipMasking) + return [target, data]; + if (merge) { + applyMask(data, mask2, target, offset, dataLength); + return [target]; + } + applyMask(data, mask2, data, 0, dataLength); + return [target, data]; + } + /** + * Sends a close message to the other peer. + * + * @param {Number} [code] The status code component of the body + * @param {(String|Buffer)} [data] The message component of the body + * @param {Boolean} [mask=false] Specifies whether or not to mask the message + * @param {Function} [cb] Callback + * @public + */ + close(code, data, mask2, cb) { + let buf; + if (code === void 0) { + buf = EMPTY_BUFFER$1; + } else if (typeof code !== "number" || !isValidStatusCode(code)) { + throw new TypeError("First argument must be a valid error code number"); + } else if (data === void 0 || !data.length) { + buf = Buffer.allocUnsafe(2); + buf.writeUInt16BE(code, 0); + } else { + const length = Buffer.byteLength(data); + if (length > 123) { + throw new RangeError("The message must not be greater than 123 bytes"); + } + buf = Buffer.allocUnsafe(2 + length); + buf.writeUInt16BE(code, 0); + if (typeof data === "string") { + buf.write(data, 2); + } else { + buf.set(data, 2); + } + } + const options = { + [kByteLength]: buf.length, + fin: true, + generateMask: this._generateMask, + mask: mask2, + maskBuffer: this._maskBuffer, + opcode: 8, + readOnly: false, + rsv1: false + }; + if (this._deflating) { + this.enqueue([this.dispatch, buf, false, options, cb]); + } else { + this.sendFrame(Sender.frame(buf, options), cb); + } + } + /** + * Sends a ping message to the other peer. + * + * @param {*} data The message to send + * @param {Boolean} [mask=false] Specifies whether or not to mask `data` + * @param {Function} [cb] Callback + * @public + */ + ping(data, mask2, cb) { + let byteLength; + let readOnly; + if (typeof data === "string") { + byteLength = Buffer.byteLength(data); + readOnly = false; + } else { + data = toBuffer$1(data); + byteLength = data.length; + readOnly = toBuffer$1.readOnly; + } + if (byteLength > 125) { + throw new RangeError("The data size must not be greater than 125 bytes"); + } + const options = { + [kByteLength]: byteLength, + fin: true, + generateMask: this._generateMask, + mask: mask2, + maskBuffer: this._maskBuffer, + opcode: 9, + readOnly, + rsv1: false + }; + if (this._deflating) { + this.enqueue([this.dispatch, data, false, options, cb]); + } else { + this.sendFrame(Sender.frame(data, options), cb); + } + } + /** + * Sends a pong message to the other peer. + * + * @param {*} data The message to send + * @param {Boolean} [mask=false] Specifies whether or not to mask `data` + * @param {Function} [cb] Callback + * @public + */ + pong(data, mask2, cb) { + let byteLength; + let readOnly; + if (typeof data === "string") { + byteLength = Buffer.byteLength(data); + readOnly = false; + } else { + data = toBuffer$1(data); + byteLength = data.length; + readOnly = toBuffer$1.readOnly; + } + if (byteLength > 125) { + throw new RangeError("The data size must not be greater than 125 bytes"); + } + const options = { + [kByteLength]: byteLength, + fin: true, + generateMask: this._generateMask, + mask: mask2, + maskBuffer: this._maskBuffer, + opcode: 10, + readOnly, + rsv1: false + }; + if (this._deflating) { + this.enqueue([this.dispatch, data, false, options, cb]); + } else { + this.sendFrame(Sender.frame(data, options), cb); + } + } + /** + * Sends a data message to the other peer. + * + * @param {*} data The message to send + * @param {Object} options Options object + * @param {Boolean} [options.binary=false] Specifies whether `data` is binary + * or text + * @param {Boolean} [options.compress=false] Specifies whether or not to + * compress `data` + * @param {Boolean} [options.fin=false] Specifies whether the fragment is the + * last one + * @param {Boolean} [options.mask=false] Specifies whether or not to mask + * `data` + * @param {Function} [cb] Callback + * @public + */ + send(data, options, cb) { + const perMessageDeflate = this._extensions[PerMessageDeflate$2.extensionName]; + let opcode = options.binary ? 2 : 1; + let rsv1 = options.compress; + let byteLength; + let readOnly; + if (typeof data === "string") { + byteLength = Buffer.byteLength(data); + readOnly = false; + } else { + data = toBuffer$1(data); + byteLength = data.length; + readOnly = toBuffer$1.readOnly; + } + if (this._firstFragment) { + this._firstFragment = false; + if (rsv1 && perMessageDeflate && perMessageDeflate.params[perMessageDeflate._isServer ? "server_no_context_takeover" : "client_no_context_takeover"]) { + rsv1 = byteLength >= perMessageDeflate._threshold; + } + this._compress = rsv1; + } else { + rsv1 = false; + opcode = 0; + } + if (options.fin) + this._firstFragment = true; + if (perMessageDeflate) { + const opts = { + [kByteLength]: byteLength, + fin: options.fin, + generateMask: this._generateMask, + mask: options.mask, + maskBuffer: this._maskBuffer, + opcode, + readOnly, + rsv1 + }; + if (this._deflating) { + this.enqueue([this.dispatch, data, this._compress, opts, cb]); + } else { + this.dispatch(data, this._compress, opts, cb); + } + } else { + this.sendFrame( + Sender.frame(data, { + [kByteLength]: byteLength, + fin: options.fin, + generateMask: this._generateMask, + mask: options.mask, + maskBuffer: this._maskBuffer, + opcode, + readOnly, + rsv1: false + }), + cb + ); + } + } + /** + * Dispatches a message. + * + * @param {(Buffer|String)} data The message to send + * @param {Boolean} [compress=false] Specifies whether or not to compress + * `data` + * @param {Object} options Options object + * @param {Boolean} [options.fin=false] Specifies whether or not to set the + * FIN bit + * @param {Function} [options.generateMask] The function used to generate the + * masking key + * @param {Boolean} [options.mask=false] Specifies whether or not to mask + * `data` + * @param {Buffer} [options.maskBuffer] The buffer used to store the masking + * key + * @param {Number} options.opcode The opcode + * @param {Boolean} [options.readOnly=false] Specifies whether `data` can be + * modified + * @param {Boolean} [options.rsv1=false] Specifies whether or not to set the + * RSV1 bit + * @param {Function} [cb] Callback + * @private + */ + dispatch(data, compress, options, cb) { + if (!compress) { + this.sendFrame(Sender.frame(data, options), cb); + return; + } + const perMessageDeflate = this._extensions[PerMessageDeflate$2.extensionName]; + this._bufferedBytes += options[kByteLength]; + this._deflating = true; + perMessageDeflate.compress(data, options.fin, (_, buf) => { + if (this._socket.destroyed) { + const err = new Error( + "The socket was closed while data was being compressed" + ); + if (typeof cb === "function") + cb(err); + for (let i = 0; i < this._queue.length; i++) { + const params = this._queue[i]; + const callback = params[params.length - 1]; + if (typeof callback === "function") + callback(err); + } + return; + } + this._bufferedBytes -= options[kByteLength]; + this._deflating = false; + options.readOnly = false; + this.sendFrame(Sender.frame(buf, options), cb); + this.dequeue(); + }); + } + /** + * Executes queued send operations. + * + * @private + */ + dequeue() { + while (!this._deflating && this._queue.length) { + const params = this._queue.shift(); + this._bufferedBytes -= params[3][kByteLength]; + Reflect.apply(params[0], this, params.slice(1)); + } + } + /** + * Enqueues a send operation. + * + * @param {Array} params Send operation parameters. + * @private + */ + enqueue(params) { + this._bufferedBytes += params[3][kByteLength]; + this._queue.push(params); + } + /** + * Sends a frame. + * + * @param {Buffer[]} list The frame to send + * @param {Function} [cb] Callback + * @private + */ + sendFrame(list, cb) { + if (list.length === 2) { + this._socket.cork(); + this._socket.write(list[0]); + this._socket.write(list[1], cb); + this._socket.uncork(); + } else { + this._socket.write(list[0], cb); + } + } +}; +var sender = Sender$1; +const sender$1 = /* @__PURE__ */ getDefaultExportFromCjs(sender); +const { kForOnEventAttribute: kForOnEventAttribute$1, kListener: kListener$1 } = constants; +const kCode = Symbol("kCode"); +const kData = Symbol("kData"); +const kError = Symbol("kError"); +const kMessage = Symbol("kMessage"); +const kReason = Symbol("kReason"); +const kTarget = Symbol("kTarget"); +const kType = Symbol("kType"); +const kWasClean = Symbol("kWasClean"); +class Event { + /** + * Create a new `Event`. + * + * @param {String} type The name of the event + * @throws {TypeError} If the `type` argument is not specified + */ + constructor(type) { + this[kTarget] = null; + this[kType] = type; + } + /** + * @type {*} + */ + get target() { + return this[kTarget]; + } + /** + * @type {String} + */ + get type() { + return this[kType]; + } +} +Object.defineProperty(Event.prototype, "target", { enumerable: true }); +Object.defineProperty(Event.prototype, "type", { enumerable: true }); +class CloseEvent extends Event { + /** + * Create a new `CloseEvent`. + * + * @param {String} type The name of the event + * @param {Object} [options] A dictionary object that allows for setting + * attributes via object members of the same name + * @param {Number} [options.code=0] The status code explaining why the + * connection was closed + * @param {String} [options.reason=''] A human-readable string explaining why + * the connection was closed + * @param {Boolean} [options.wasClean=false] Indicates whether or not the + * connection was cleanly closed + */ + constructor(type, options = {}) { + super(type); + this[kCode] = options.code === void 0 ? 0 : options.code; + this[kReason] = options.reason === void 0 ? "" : options.reason; + this[kWasClean] = options.wasClean === void 0 ? false : options.wasClean; + } + /** + * @type {Number} + */ + get code() { + return this[kCode]; + } + /** + * @type {String} + */ + get reason() { + return this[kReason]; + } + /** + * @type {Boolean} + */ + get wasClean() { + return this[kWasClean]; + } +} +Object.defineProperty(CloseEvent.prototype, "code", { enumerable: true }); +Object.defineProperty(CloseEvent.prototype, "reason", { enumerable: true }); +Object.defineProperty(CloseEvent.prototype, "wasClean", { enumerable: true }); +class ErrorEvent extends Event { + /** + * Create a new `ErrorEvent`. + * + * @param {String} type The name of the event + * @param {Object} [options] A dictionary object that allows for setting + * attributes via object members of the same name + * @param {*} [options.error=null] The error that generated this event + * @param {String} [options.message=''] The error message + */ + constructor(type, options = {}) { + super(type); + this[kError] = options.error === void 0 ? null : options.error; + this[kMessage] = options.message === void 0 ? "" : options.message; + } + /** + * @type {*} + */ + get error() { + return this[kError]; + } + /** + * @type {String} + */ + get message() { + return this[kMessage]; + } +} +Object.defineProperty(ErrorEvent.prototype, "error", { enumerable: true }); +Object.defineProperty(ErrorEvent.prototype, "message", { enumerable: true }); +class MessageEvent extends Event { + /** + * Create a new `MessageEvent`. + * + * @param {String} type The name of the event + * @param {Object} [options] A dictionary object that allows for setting + * attributes via object members of the same name + * @param {*} [options.data=null] The message content + */ + constructor(type, options = {}) { + super(type); + this[kData] = options.data === void 0 ? null : options.data; + } + /** + * @type {*} + */ + get data() { + return this[kData]; + } +} +Object.defineProperty(MessageEvent.prototype, "data", { enumerable: true }); +const EventTarget = { + /** + * Register an event listener. + * + * @param {String} type A string representing the event type to listen for + * @param {(Function|Object)} handler The listener to add + * @param {Object} [options] An options object specifies characteristics about + * the event listener + * @param {Boolean} [options.once=false] A `Boolean` indicating that the + * listener should be invoked at most once after being added. If `true`, + * the listener would be automatically removed when invoked. + * @public + */ + addEventListener(type, handler, options = {}) { + for (const listener of this.listeners(type)) { + if (!options[kForOnEventAttribute$1] && listener[kListener$1] === handler && !listener[kForOnEventAttribute$1]) { + return; + } + } + let wrapper; + if (type === "message") { + wrapper = function onMessage(data, isBinary) { + const event = new MessageEvent("message", { + data: isBinary ? data : data.toString() + }); + event[kTarget] = this; + callListener(handler, this, event); + }; + } else if (type === "close") { + wrapper = function onClose(code, message) { + const event = new CloseEvent("close", { + code, + reason: message.toString(), + wasClean: this._closeFrameReceived && this._closeFrameSent + }); + event[kTarget] = this; + callListener(handler, this, event); + }; + } else if (type === "error") { + wrapper = function onError(error2) { + const event = new ErrorEvent("error", { + error: error2, + message: error2.message + }); + event[kTarget] = this; + callListener(handler, this, event); + }; + } else if (type === "open") { + wrapper = function onOpen() { + const event = new Event("open"); + event[kTarget] = this; + callListener(handler, this, event); + }; + } else { + return; + } + wrapper[kForOnEventAttribute$1] = !!options[kForOnEventAttribute$1]; + wrapper[kListener$1] = handler; + if (options.once) { + this.once(type, wrapper); + } else { + this.on(type, wrapper); + } + }, + /** + * Remove an event listener. + * + * @param {String} type A string representing the event type to remove + * @param {(Function|Object)} handler The listener to remove + * @public + */ + removeEventListener(type, handler) { + for (const listener of this.listeners(type)) { + if (listener[kListener$1] === handler && !listener[kForOnEventAttribute$1]) { + this.removeListener(type, listener); + break; + } + } + } +}; +var eventTarget = { + CloseEvent, + ErrorEvent, + Event, + EventTarget, + MessageEvent +}; +function callListener(listener, thisArg, event) { + if (typeof listener === "object" && listener.handleEvent) { + listener.handleEvent.call(listener, event); + } else { + listener.call(thisArg, event); + } +} +const { tokenChars: tokenChars$1 } = validationExports; +function push(dest, name, elem) { + if (dest[name] === void 0) + dest[name] = [elem]; + else + dest[name].push(elem); +} +function parse$2(header) { + const offers = /* @__PURE__ */ Object.create(null); + let params = /* @__PURE__ */ Object.create(null); + let mustUnescape = false; + let isEscaping = false; + let inQuotes = false; + let extensionName; + let paramName; + let start = -1; + let code = -1; + let end = -1; + let i = 0; + for (; i < header.length; i++) { + code = header.charCodeAt(i); + if (extensionName === void 0) { + if (end === -1 && tokenChars$1[code] === 1) { + if (start === -1) + start = i; + } else if (i !== 0 && (code === 32 || code === 9)) { + if (end === -1 && start !== -1) + end = i; + } else if (code === 59 || code === 44) { + if (start === -1) { + throw new SyntaxError(`Unexpected character at index ${i}`); + } + if (end === -1) + end = i; + const name = header.slice(start, end); + if (code === 44) { + push(offers, name, params); + params = /* @__PURE__ */ Object.create(null); + } else { + extensionName = name; + } + start = end = -1; + } else { + throw new SyntaxError(`Unexpected character at index ${i}`); + } + } else if (paramName === void 0) { + if (end === -1 && tokenChars$1[code] === 1) { + if (start === -1) + start = i; + } else if (code === 32 || code === 9) { + if (end === -1 && start !== -1) + end = i; + } else if (code === 59 || code === 44) { + if (start === -1) { + throw new SyntaxError(`Unexpected character at index ${i}`); + } + if (end === -1) + end = i; + push(params, header.slice(start, end), true); + if (code === 44) { + push(offers, extensionName, params); + params = /* @__PURE__ */ Object.create(null); + extensionName = void 0; + } + start = end = -1; + } else if (code === 61 && start !== -1 && end === -1) { + paramName = header.slice(start, i); + start = end = -1; + } else { + throw new SyntaxError(`Unexpected character at index ${i}`); + } + } else { + if (isEscaping) { + if (tokenChars$1[code] !== 1) { + throw new SyntaxError(`Unexpected character at index ${i}`); + } + if (start === -1) + start = i; + else if (!mustUnescape) + mustUnescape = true; + isEscaping = false; + } else if (inQuotes) { + if (tokenChars$1[code] === 1) { + if (start === -1) + start = i; + } else if (code === 34 && start !== -1) { + inQuotes = false; + end = i; + } else if (code === 92) { + isEscaping = true; + } else { + throw new SyntaxError(`Unexpected character at index ${i}`); + } + } else if (code === 34 && header.charCodeAt(i - 1) === 61) { + inQuotes = true; + } else if (end === -1 && tokenChars$1[code] === 1) { + if (start === -1) + start = i; + } else if (start !== -1 && (code === 32 || code === 9)) { + if (end === -1) + end = i; + } else if (code === 59 || code === 44) { + if (start === -1) { + throw new SyntaxError(`Unexpected character at index ${i}`); + } + if (end === -1) + end = i; + let value = header.slice(start, end); + if (mustUnescape) { + value = value.replace(/\\/g, ""); + mustUnescape = false; + } + push(params, paramName, value); + if (code === 44) { + push(offers, extensionName, params); + params = /* @__PURE__ */ Object.create(null); + extensionName = void 0; + } + paramName = void 0; + start = end = -1; + } else { + throw new SyntaxError(`Unexpected character at index ${i}`); + } + } + } + if (start === -1 || inQuotes || code === 32 || code === 9) { + throw new SyntaxError("Unexpected end of input"); + } + if (end === -1) + end = i; + const token = header.slice(start, end); + if (extensionName === void 0) { + push(offers, token, params); + } else { + if (paramName === void 0) { + push(params, token, true); + } else if (mustUnescape) { + push(params, paramName, token.replace(/\\/g, "")); + } else { + push(params, paramName, token); + } + push(offers, extensionName, params); + } + return offers; +} +function format$1(extensions) { + return Object.keys(extensions).map((extension2) => { + let configurations = extensions[extension2]; + if (!Array.isArray(configurations)) + configurations = [configurations]; + return configurations.map((params) => { + return [extension2].concat( + Object.keys(params).map((k) => { + let values = params[k]; + if (!Array.isArray(values)) + values = [values]; + return values.map((v) => v === true ? k : `${k}=${v}`).join("; "); + }) + ).join("; "); + }).join(", "); + }).join(", "); +} +var extension$1 = { format: format$1, parse: parse$2 }; +const EventEmitter$1 = require$$0$3; +const https = require$$1$1; +const http$1 = require$$2; +const net = require$$3; +const tls = require$$4; +const { randomBytes, createHash: createHash$1 } = require$$5; +const { URL } = require$$7; +const PerMessageDeflate$1 = permessageDeflate; +const Receiver2 = receiver; +const Sender2 = sender; +const { + BINARY_TYPES, + EMPTY_BUFFER, + GUID: GUID$1, + kForOnEventAttribute, + kListener, + kStatusCode, + kWebSocket: kWebSocket$1, + NOOP +} = constants; +const { + EventTarget: { addEventListener, removeEventListener } +} = eventTarget; +const { format, parse: parse$1 } = extension$1; +const { toBuffer } = bufferUtilExports; +const closeTimeout = 30 * 1e3; +const kAborted = Symbol("kAborted"); +const protocolVersions = [8, 13]; +const readyStates = ["CONNECTING", "OPEN", "CLOSING", "CLOSED"]; +const subprotocolRegex = /^[!#$%&'*+\-.0-9A-Z^_`|a-z~]+$/; +let WebSocket$1 = class WebSocket extends EventEmitter$1 { + /** + * Create a new `WebSocket`. + * + * @param {(String|URL)} address The URL to which to connect + * @param {(String|String[])} [protocols] The subprotocols + * @param {Object} [options] Connection options + */ + constructor(address, protocols, options) { + super(); + this._binaryType = BINARY_TYPES[0]; + this._closeCode = 1006; + this._closeFrameReceived = false; + this._closeFrameSent = false; + this._closeMessage = EMPTY_BUFFER; + this._closeTimer = null; + this._extensions = {}; + this._paused = false; + this._protocol = ""; + this._readyState = WebSocket.CONNECTING; + this._receiver = null; + this._sender = null; + this._socket = null; + if (address !== null) { + this._bufferedAmount = 0; + this._isServer = false; + this._redirects = 0; + if (protocols === void 0) { + protocols = []; + } else if (!Array.isArray(protocols)) { + if (typeof protocols === "object" && protocols !== null) { + options = protocols; + protocols = []; + } else { + protocols = [protocols]; + } + } + initAsClient(this, address, protocols, options); + } else { + this._isServer = true; + } + } + /** + * This deviates from the WHATWG interface since ws doesn't support the + * required default "blob" type (instead we define a custom "nodebuffer" + * type). + * + * @type {String} + */ + get binaryType() { + return this._binaryType; + } + set binaryType(type) { + if (!BINARY_TYPES.includes(type)) + return; + this._binaryType = type; + if (this._receiver) + this._receiver._binaryType = type; + } + /** + * @type {Number} + */ + get bufferedAmount() { + if (!this._socket) + return this._bufferedAmount; + return this._socket._writableState.length + this._sender._bufferedBytes; + } + /** + * @type {String} + */ + get extensions() { + return Object.keys(this._extensions).join(); + } + /** + * @type {Boolean} + */ + get isPaused() { + return this._paused; + } + /** + * @type {Function} + */ + /* istanbul ignore next */ + get onclose() { + return null; + } + /** + * @type {Function} + */ + /* istanbul ignore next */ + get onerror() { + return null; + } + /** + * @type {Function} + */ + /* istanbul ignore next */ + get onopen() { + return null; + } + /** + * @type {Function} + */ + /* istanbul ignore next */ + get onmessage() { + return null; + } + /** + * @type {String} + */ + get protocol() { + return this._protocol; + } + /** + * @type {Number} + */ + get readyState() { + return this._readyState; + } + /** + * @type {String} + */ + get url() { + return this._url; + } + /** + * Set up the socket and the internal resources. + * + * @param {(net.Socket|tls.Socket)} socket The network socket between the + * server and client + * @param {Buffer} head The first packet of the upgraded stream + * @param {Object} options Options object + * @param {Function} [options.generateMask] The function used to generate the + * masking key + * @param {Number} [options.maxPayload=0] The maximum allowed message size + * @param {Boolean} [options.skipUTF8Validation=false] Specifies whether or + * not to skip UTF-8 validation for text and close messages + * @private + */ + setSocket(socket, head, options) { + const receiver2 = new Receiver2({ + binaryType: this.binaryType, + extensions: this._extensions, + isServer: this._isServer, + maxPayload: options.maxPayload, + skipUTF8Validation: options.skipUTF8Validation + }); + this._sender = new Sender2(socket, this._extensions, options.generateMask); + this._receiver = receiver2; + this._socket = socket; + receiver2[kWebSocket$1] = this; + socket[kWebSocket$1] = this; + receiver2.on("conclude", receiverOnConclude); + receiver2.on("drain", receiverOnDrain); + receiver2.on("error", receiverOnError); + receiver2.on("message", receiverOnMessage); + receiver2.on("ping", receiverOnPing); + receiver2.on("pong", receiverOnPong); + socket.setTimeout(0); + socket.setNoDelay(); + if (head.length > 0) + socket.unshift(head); + socket.on("close", socketOnClose); + socket.on("data", socketOnData); + socket.on("end", socketOnEnd); + socket.on("error", socketOnError$1); + this._readyState = WebSocket.OPEN; + this.emit("open"); + } + /** + * Emit the `'close'` event. + * + * @private + */ + emitClose() { + if (!this._socket) { + this._readyState = WebSocket.CLOSED; + this.emit("close", this._closeCode, this._closeMessage); + return; + } + if (this._extensions[PerMessageDeflate$1.extensionName]) { + this._extensions[PerMessageDeflate$1.extensionName].cleanup(); + } + this._receiver.removeAllListeners(); + this._readyState = WebSocket.CLOSED; + this.emit("close", this._closeCode, this._closeMessage); + } + /** + * Start a closing handshake. + * + * +----------+ +-----------+ +----------+ + * - - -|ws.close()|-->|close frame|-->|ws.close()|- - - + * | +----------+ +-----------+ +----------+ | + * +----------+ +-----------+ | + * CLOSING |ws.close()|<--|close frame|<--+-----+ CLOSING + * +----------+ +-----------+ | + * | | | +---+ | + * +------------------------+-->|fin| - - - - + * | +---+ | +---+ + * - - - - -|fin|<---------------------+ + * +---+ + * + * @param {Number} [code] Status code explaining why the connection is closing + * @param {(String|Buffer)} [data] The reason why the connection is + * closing + * @public + */ + close(code, data) { + if (this.readyState === WebSocket.CLOSED) + return; + if (this.readyState === WebSocket.CONNECTING) { + const msg = "WebSocket was closed before the connection was established"; + abortHandshake$1(this, this._req, msg); + return; + } + if (this.readyState === WebSocket.CLOSING) { + if (this._closeFrameSent && (this._closeFrameReceived || this._receiver._writableState.errorEmitted)) { + this._socket.end(); + } + return; + } + this._readyState = WebSocket.CLOSING; + this._sender.close(code, data, !this._isServer, (err) => { + if (err) + return; + this._closeFrameSent = true; + if (this._closeFrameReceived || this._receiver._writableState.errorEmitted) { + this._socket.end(); + } + }); + this._closeTimer = setTimeout( + this._socket.destroy.bind(this._socket), + closeTimeout + ); + } + /** + * Pause the socket. + * + * @public + */ + pause() { + if (this.readyState === WebSocket.CONNECTING || this.readyState === WebSocket.CLOSED) { + return; + } + this._paused = true; + this._socket.pause(); + } + /** + * Send a ping. + * + * @param {*} [data] The data to send + * @param {Boolean} [mask] Indicates whether or not to mask `data` + * @param {Function} [cb] Callback which is executed when the ping is sent + * @public + */ + ping(data, mask2, cb) { + if (this.readyState === WebSocket.CONNECTING) { + throw new Error("WebSocket is not open: readyState 0 (CONNECTING)"); + } + if (typeof data === "function") { + cb = data; + data = mask2 = void 0; + } else if (typeof mask2 === "function") { + cb = mask2; + mask2 = void 0; + } + if (typeof data === "number") + data = data.toString(); + if (this.readyState !== WebSocket.OPEN) { + sendAfterClose(this, data, cb); + return; + } + if (mask2 === void 0) + mask2 = !this._isServer; + this._sender.ping(data || EMPTY_BUFFER, mask2, cb); + } + /** + * Send a pong. + * + * @param {*} [data] The data to send + * @param {Boolean} [mask] Indicates whether or not to mask `data` + * @param {Function} [cb] Callback which is executed when the pong is sent + * @public + */ + pong(data, mask2, cb) { + if (this.readyState === WebSocket.CONNECTING) { + throw new Error("WebSocket is not open: readyState 0 (CONNECTING)"); + } + if (typeof data === "function") { + cb = data; + data = mask2 = void 0; + } else if (typeof mask2 === "function") { + cb = mask2; + mask2 = void 0; + } + if (typeof data === "number") + data = data.toString(); + if (this.readyState !== WebSocket.OPEN) { + sendAfterClose(this, data, cb); + return; + } + if (mask2 === void 0) + mask2 = !this._isServer; + this._sender.pong(data || EMPTY_BUFFER, mask2, cb); + } + /** + * Resume the socket. + * + * @public + */ + resume() { + if (this.readyState === WebSocket.CONNECTING || this.readyState === WebSocket.CLOSED) { + return; + } + this._paused = false; + if (!this._receiver._writableState.needDrain) + this._socket.resume(); + } + /** + * Send a data message. + * + * @param {*} data The message to send + * @param {Object} [options] Options object + * @param {Boolean} [options.binary] Specifies whether `data` is binary or + * text + * @param {Boolean} [options.compress] Specifies whether or not to compress + * `data` + * @param {Boolean} [options.fin=true] Specifies whether the fragment is the + * last one + * @param {Boolean} [options.mask] Specifies whether or not to mask `data` + * @param {Function} [cb] Callback which is executed when data is written out + * @public + */ + send(data, options, cb) { + if (this.readyState === WebSocket.CONNECTING) { + throw new Error("WebSocket is not open: readyState 0 (CONNECTING)"); + } + if (typeof options === "function") { + cb = options; + options = {}; + } + if (typeof data === "number") + data = data.toString(); + if (this.readyState !== WebSocket.OPEN) { + sendAfterClose(this, data, cb); + return; + } + const opts = { + binary: typeof data !== "string", + mask: !this._isServer, + compress: true, + fin: true, + ...options + }; + if (!this._extensions[PerMessageDeflate$1.extensionName]) { + opts.compress = false; + } + this._sender.send(data || EMPTY_BUFFER, opts, cb); + } + /** + * Forcibly close the connection. + * + * @public + */ + terminate() { + if (this.readyState === WebSocket.CLOSED) + return; + if (this.readyState === WebSocket.CONNECTING) { + const msg = "WebSocket was closed before the connection was established"; + abortHandshake$1(this, this._req, msg); + return; + } + if (this._socket) { + this._readyState = WebSocket.CLOSING; + this._socket.destroy(); + } + } +}; +Object.defineProperty(WebSocket$1, "CONNECTING", { + enumerable: true, + value: readyStates.indexOf("CONNECTING") +}); +Object.defineProperty(WebSocket$1.prototype, "CONNECTING", { + enumerable: true, + value: readyStates.indexOf("CONNECTING") +}); +Object.defineProperty(WebSocket$1, "OPEN", { + enumerable: true, + value: readyStates.indexOf("OPEN") +}); +Object.defineProperty(WebSocket$1.prototype, "OPEN", { + enumerable: true, + value: readyStates.indexOf("OPEN") +}); +Object.defineProperty(WebSocket$1, "CLOSING", { + enumerable: true, + value: readyStates.indexOf("CLOSING") +}); +Object.defineProperty(WebSocket$1.prototype, "CLOSING", { + enumerable: true, + value: readyStates.indexOf("CLOSING") +}); +Object.defineProperty(WebSocket$1, "CLOSED", { + enumerable: true, + value: readyStates.indexOf("CLOSED") +}); +Object.defineProperty(WebSocket$1.prototype, "CLOSED", { + enumerable: true, + value: readyStates.indexOf("CLOSED") +}); +[ + "binaryType", + "bufferedAmount", + "extensions", + "isPaused", + "protocol", + "readyState", + "url" +].forEach((property) => { + Object.defineProperty(WebSocket$1.prototype, property, { enumerable: true }); +}); +["open", "error", "close", "message"].forEach((method) => { + Object.defineProperty(WebSocket$1.prototype, `on${method}`, { + enumerable: true, + get() { + for (const listener of this.listeners(method)) { + if (listener[kForOnEventAttribute]) + return listener[kListener]; + } + return null; + }, + set(handler) { + for (const listener of this.listeners(method)) { + if (listener[kForOnEventAttribute]) { + this.removeListener(method, listener); + break; + } + } + if (typeof handler !== "function") + return; + this.addEventListener(method, handler, { + [kForOnEventAttribute]: true + }); + } + }); +}); +WebSocket$1.prototype.addEventListener = addEventListener; +WebSocket$1.prototype.removeEventListener = removeEventListener; +var websocket = WebSocket$1; +function initAsClient(websocket2, address, protocols, options) { + const opts = { + protocolVersion: protocolVersions[1], + maxPayload: 100 * 1024 * 1024, + skipUTF8Validation: false, + perMessageDeflate: true, + followRedirects: false, + maxRedirects: 10, + ...options, + createConnection: void 0, + socketPath: void 0, + hostname: void 0, + protocol: void 0, + timeout: void 0, + method: "GET", + host: void 0, + path: void 0, + port: void 0 + }; + if (!protocolVersions.includes(opts.protocolVersion)) { + throw new RangeError( + `Unsupported protocol version: ${opts.protocolVersion} (supported versions: ${protocolVersions.join(", ")})` + ); + } + let parsedUrl; + if (address instanceof URL) { + parsedUrl = address; + websocket2._url = address.href; + } else { + try { + parsedUrl = new URL(address); + } catch (e) { + throw new SyntaxError(`Invalid URL: ${address}`); + } + websocket2._url = address; + } + const isSecure = parsedUrl.protocol === "wss:"; + const isIpcUrl = parsedUrl.protocol === "ws+unix:"; + let invalidUrlMessage; + if (parsedUrl.protocol !== "ws:" && !isSecure && !isIpcUrl) { + invalidUrlMessage = `The URL's protocol must be one of "ws:", "wss:", or "ws+unix:"`; + } else if (isIpcUrl && !parsedUrl.pathname) { + invalidUrlMessage = "The URL's pathname is empty"; + } else if (parsedUrl.hash) { + invalidUrlMessage = "The URL contains a fragment identifier"; + } + if (invalidUrlMessage) { + const err = new SyntaxError(invalidUrlMessage); + if (websocket2._redirects === 0) { + throw err; + } else { + emitErrorAndClose(websocket2, err); + return; + } + } + const defaultPort = isSecure ? 443 : 80; + const key = randomBytes(16).toString("base64"); + const request = isSecure ? https.request : http$1.request; + const protocolSet = /* @__PURE__ */ new Set(); + let perMessageDeflate; + opts.createConnection = isSecure ? tlsConnect : netConnect; + opts.defaultPort = opts.defaultPort || defaultPort; + opts.port = parsedUrl.port || defaultPort; + opts.host = parsedUrl.hostname.startsWith("[") ? parsedUrl.hostname.slice(1, -1) : parsedUrl.hostname; + opts.headers = { + ...opts.headers, + "Sec-WebSocket-Version": opts.protocolVersion, + "Sec-WebSocket-Key": key, + Connection: "Upgrade", + Upgrade: "websocket" + }; + opts.path = parsedUrl.pathname + parsedUrl.search; + opts.timeout = opts.handshakeTimeout; + if (opts.perMessageDeflate) { + perMessageDeflate = new PerMessageDeflate$1( + opts.perMessageDeflate !== true ? opts.perMessageDeflate : {}, + false, + opts.maxPayload + ); + opts.headers["Sec-WebSocket-Extensions"] = format({ + [PerMessageDeflate$1.extensionName]: perMessageDeflate.offer() + }); + } + if (protocols.length) { + for (const protocol of protocols) { + if (typeof protocol !== "string" || !subprotocolRegex.test(protocol) || protocolSet.has(protocol)) { + throw new SyntaxError( + "An invalid or duplicated subprotocol was specified" + ); + } + protocolSet.add(protocol); + } + opts.headers["Sec-WebSocket-Protocol"] = protocols.join(","); + } + if (opts.origin) { + if (opts.protocolVersion < 13) { + opts.headers["Sec-WebSocket-Origin"] = opts.origin; + } else { + opts.headers.Origin = opts.origin; + } + } + if (parsedUrl.username || parsedUrl.password) { + opts.auth = `${parsedUrl.username}:${parsedUrl.password}`; + } + if (isIpcUrl) { + const parts = opts.path.split(":"); + opts.socketPath = parts[0]; + opts.path = parts[1]; + } + let req; + if (opts.followRedirects) { + if (websocket2._redirects === 0) { + websocket2._originalIpc = isIpcUrl; + websocket2._originalSecure = isSecure; + websocket2._originalHostOrSocketPath = isIpcUrl ? opts.socketPath : parsedUrl.host; + const headers = options && options.headers; + options = { ...options, headers: {} }; + if (headers) { + for (const [key2, value] of Object.entries(headers)) { + options.headers[key2.toLowerCase()] = value; + } + } + } else if (websocket2.listenerCount("redirect") === 0) { + const isSameHost = isIpcUrl ? websocket2._originalIpc ? opts.socketPath === websocket2._originalHostOrSocketPath : false : websocket2._originalIpc ? false : parsedUrl.host === websocket2._originalHostOrSocketPath; + if (!isSameHost || websocket2._originalSecure && !isSecure) { + delete opts.headers.authorization; + delete opts.headers.cookie; + if (!isSameHost) + delete opts.headers.host; + opts.auth = void 0; + } + } + if (opts.auth && !options.headers.authorization) { + options.headers.authorization = "Basic " + Buffer.from(opts.auth).toString("base64"); + } + req = websocket2._req = request(opts); + if (websocket2._redirects) { + websocket2.emit("redirect", websocket2.url, req); + } + } else { + req = websocket2._req = request(opts); + } + if (opts.timeout) { + req.on("timeout", () => { + abortHandshake$1(websocket2, req, "Opening handshake has timed out"); + }); + } + req.on("error", (err) => { + if (req === null || req[kAborted]) + return; + req = websocket2._req = null; + emitErrorAndClose(websocket2, err); + }); + req.on("response", (res) => { + const location = res.headers.location; + const statusCode = res.statusCode; + if (location && opts.followRedirects && statusCode >= 300 && statusCode < 400) { + if (++websocket2._redirects > opts.maxRedirects) { + abortHandshake$1(websocket2, req, "Maximum redirects exceeded"); + return; + } + req.abort(); + let addr; + try { + addr = new URL(location, address); + } catch (e) { + const err = new SyntaxError(`Invalid URL: ${location}`); + emitErrorAndClose(websocket2, err); + return; + } + initAsClient(websocket2, addr, protocols, options); + } else if (!websocket2.emit("unexpected-response", req, res)) { + abortHandshake$1( + websocket2, + req, + `Unexpected server response: ${res.statusCode}` + ); + } + }); + req.on("upgrade", (res, socket, head) => { + websocket2.emit("upgrade", res); + if (websocket2.readyState !== WebSocket$1.CONNECTING) + return; + req = websocket2._req = null; + if (res.headers.upgrade.toLowerCase() !== "websocket") { + abortHandshake$1(websocket2, socket, "Invalid Upgrade header"); + return; + } + const digest = createHash$1("sha1").update(key + GUID$1).digest("base64"); + if (res.headers["sec-websocket-accept"] !== digest) { + abortHandshake$1(websocket2, socket, "Invalid Sec-WebSocket-Accept header"); + return; + } + const serverProt = res.headers["sec-websocket-protocol"]; + let protError; + if (serverProt !== void 0) { + if (!protocolSet.size) { + protError = "Server sent a subprotocol but none was requested"; + } else if (!protocolSet.has(serverProt)) { + protError = "Server sent an invalid subprotocol"; + } + } else if (protocolSet.size) { + protError = "Server sent no subprotocol"; + } + if (protError) { + abortHandshake$1(websocket2, socket, protError); + return; + } + if (serverProt) + websocket2._protocol = serverProt; + const secWebSocketExtensions = res.headers["sec-websocket-extensions"]; + if (secWebSocketExtensions !== void 0) { + if (!perMessageDeflate) { + const message = "Server sent a Sec-WebSocket-Extensions header but no extension was requested"; + abortHandshake$1(websocket2, socket, message); + return; + } + let extensions; + try { + extensions = parse$1(secWebSocketExtensions); + } catch (err) { + const message = "Invalid Sec-WebSocket-Extensions header"; + abortHandshake$1(websocket2, socket, message); + return; + } + const extensionNames = Object.keys(extensions); + if (extensionNames.length !== 1 || extensionNames[0] !== PerMessageDeflate$1.extensionName) { + const message = "Server indicated an extension that was not requested"; + abortHandshake$1(websocket2, socket, message); + return; + } + try { + perMessageDeflate.accept(extensions[PerMessageDeflate$1.extensionName]); + } catch (err) { + const message = "Invalid Sec-WebSocket-Extensions header"; + abortHandshake$1(websocket2, socket, message); + return; + } + websocket2._extensions[PerMessageDeflate$1.extensionName] = perMessageDeflate; + } + websocket2.setSocket(socket, head, { + generateMask: opts.generateMask, + maxPayload: opts.maxPayload, + skipUTF8Validation: opts.skipUTF8Validation + }); + }); + if (opts.finishRequest) { + opts.finishRequest(req, websocket2); + } else { + req.end(); + } +} +function emitErrorAndClose(websocket2, err) { + websocket2._readyState = WebSocket$1.CLOSING; + websocket2.emit("error", err); + websocket2.emitClose(); +} +function netConnect(options) { + options.path = options.socketPath; + return net.connect(options); +} +function tlsConnect(options) { + options.path = void 0; + if (!options.servername && options.servername !== "") { + options.servername = net.isIP(options.host) ? "" : options.host; + } + return tls.connect(options); +} +function abortHandshake$1(websocket2, stream2, message) { + websocket2._readyState = WebSocket$1.CLOSING; + const err = new Error(message); + Error.captureStackTrace(err, abortHandshake$1); + if (stream2.setHeader) { + stream2[kAborted] = true; + stream2.abort(); + if (stream2.socket && !stream2.socket.destroyed) { + stream2.socket.destroy(); + } + process.nextTick(emitErrorAndClose, websocket2, err); + } else { + stream2.destroy(err); + stream2.once("error", websocket2.emit.bind(websocket2, "error")); + stream2.once("close", websocket2.emitClose.bind(websocket2)); + } +} +function sendAfterClose(websocket2, data, cb) { + if (data) { + const length = toBuffer(data).length; + if (websocket2._socket) + websocket2._sender._bufferedBytes += length; + else + websocket2._bufferedAmount += length; + } + if (cb) { + const err = new Error( + `WebSocket is not open: readyState ${websocket2.readyState} (${readyStates[websocket2.readyState]})` + ); + process.nextTick(cb, err); + } +} +function receiverOnConclude(code, reason) { + const websocket2 = this[kWebSocket$1]; + websocket2._closeFrameReceived = true; + websocket2._closeMessage = reason; + websocket2._closeCode = code; + if (websocket2._socket[kWebSocket$1] === void 0) + return; + websocket2._socket.removeListener("data", socketOnData); + process.nextTick(resume, websocket2._socket); + if (code === 1005) + websocket2.close(); + else + websocket2.close(code, reason); +} +function receiverOnDrain() { + const websocket2 = this[kWebSocket$1]; + if (!websocket2.isPaused) + websocket2._socket.resume(); +} +function receiverOnError(err) { + const websocket2 = this[kWebSocket$1]; + if (websocket2._socket[kWebSocket$1] !== void 0) { + websocket2._socket.removeListener("data", socketOnData); + process.nextTick(resume, websocket2._socket); + websocket2.close(err[kStatusCode]); + } + websocket2.emit("error", err); +} +function receiverOnFinish() { + this[kWebSocket$1].emitClose(); +} +function receiverOnMessage(data, isBinary) { + this[kWebSocket$1].emit("message", data, isBinary); +} +function receiverOnPing(data) { + const websocket2 = this[kWebSocket$1]; + websocket2.pong(data, !websocket2._isServer, NOOP); + websocket2.emit("ping", data); +} +function receiverOnPong(data) { + this[kWebSocket$1].emit("pong", data); +} +function resume(stream2) { + stream2.resume(); +} +function socketOnClose() { + const websocket2 = this[kWebSocket$1]; + this.removeListener("close", socketOnClose); + this.removeListener("data", socketOnData); + this.removeListener("end", socketOnEnd); + websocket2._readyState = WebSocket$1.CLOSING; + let chunk; + if (!this._readableState.endEmitted && !websocket2._closeFrameReceived && !websocket2._receiver._writableState.errorEmitted && (chunk = websocket2._socket.read()) !== null) { + websocket2._receiver.write(chunk); + } + websocket2._receiver.end(); + this[kWebSocket$1] = void 0; + clearTimeout(websocket2._closeTimer); + if (websocket2._receiver._writableState.finished || websocket2._receiver._writableState.errorEmitted) { + websocket2.emitClose(); + } else { + websocket2._receiver.on("error", receiverOnFinish); + websocket2._receiver.on("finish", receiverOnFinish); + } +} +function socketOnData(chunk) { + if (!this[kWebSocket$1]._receiver.write(chunk)) { + this.pause(); + } +} +function socketOnEnd() { + const websocket2 = this[kWebSocket$1]; + websocket2._readyState = WebSocket$1.CLOSING; + websocket2._receiver.end(); + this.end(); +} +function socketOnError$1() { + const websocket2 = this[kWebSocket$1]; + this.removeListener("error", socketOnError$1); + this.on("error", NOOP); + if (websocket2) { + websocket2._readyState = WebSocket$1.CLOSING; + this.destroy(); + } +} +const WebSocket$2 = /* @__PURE__ */ getDefaultExportFromCjs(websocket); +const { tokenChars } = validationExports; +function parse(header) { + const protocols = /* @__PURE__ */ new Set(); + let start = -1; + let end = -1; + let i = 0; + for (i; i < header.length; i++) { + const code = header.charCodeAt(i); + if (end === -1 && tokenChars[code] === 1) { + if (start === -1) + start = i; + } else if (i !== 0 && (code === 32 || code === 9)) { + if (end === -1 && start !== -1) + end = i; + } else if (code === 44) { + if (start === -1) { + throw new SyntaxError(`Unexpected character at index ${i}`); + } + if (end === -1) + end = i; + const protocol2 = header.slice(start, end); + if (protocols.has(protocol2)) { + throw new SyntaxError(`The "${protocol2}" subprotocol is duplicated`); + } + protocols.add(protocol2); + start = end = -1; + } else { + throw new SyntaxError(`Unexpected character at index ${i}`); + } + } + if (start === -1 || end !== -1) { + throw new SyntaxError("Unexpected end of input"); + } + const protocol = header.slice(start, i); + if (protocols.has(protocol)) { + throw new SyntaxError(`The "${protocol}" subprotocol is duplicated`); + } + protocols.add(protocol); + return protocols; +} +var subprotocol$1 = { parse }; +const EventEmitter = require$$0$3; +const http = require$$2; +const { createHash } = require$$5; +const extension = extension$1; +const PerMessageDeflate2 = permessageDeflate; +const subprotocol = subprotocol$1; +const WebSocket2 = websocket; +const { GUID, kWebSocket } = constants; +const keyRegex = /^[+/0-9A-Za-z]{22}==$/; +const RUNNING = 0; +const CLOSING = 1; +const CLOSED = 2; +class WebSocketServer extends EventEmitter { + /** + * Create a `WebSocketServer` instance. + * + * @param {Object} options Configuration options + * @param {Number} [options.backlog=511] The maximum length of the queue of + * pending connections + * @param {Boolean} [options.clientTracking=true] Specifies whether or not to + * track clients + * @param {Function} [options.handleProtocols] A hook to handle protocols + * @param {String} [options.host] The hostname where to bind the server + * @param {Number} [options.maxPayload=104857600] The maximum allowed message + * size + * @param {Boolean} [options.noServer=false] Enable no server mode + * @param {String} [options.path] Accept only connections matching this path + * @param {(Boolean|Object)} [options.perMessageDeflate=false] Enable/disable + * permessage-deflate + * @param {Number} [options.port] The port where to bind the server + * @param {(http.Server|https.Server)} [options.server] A pre-created HTTP/S + * server to use + * @param {Boolean} [options.skipUTF8Validation=false] Specifies whether or + * not to skip UTF-8 validation for text and close messages + * @param {Function} [options.verifyClient] A hook to reject connections + * @param {Function} [options.WebSocket=WebSocket] Specifies the `WebSocket` + * class to use. It must be the `WebSocket` class or class that extends it + * @param {Function} [callback] A listener for the `listening` event + */ + constructor(options, callback) { + super(); + options = { + maxPayload: 100 * 1024 * 1024, + skipUTF8Validation: false, + perMessageDeflate: false, + handleProtocols: null, + clientTracking: true, + verifyClient: null, + noServer: false, + backlog: null, + // use default (511 as implemented in net.js) + server: null, + host: null, + path: null, + port: null, + WebSocket: WebSocket2, + ...options + }; + if (options.port == null && !options.server && !options.noServer || options.port != null && (options.server || options.noServer) || options.server && options.noServer) { + throw new TypeError( + 'One and only one of the "port", "server", or "noServer" options must be specified' + ); + } + if (options.port != null) { + this._server = http.createServer((req, res) => { + const body = http.STATUS_CODES[426]; + res.writeHead(426, { + "Content-Length": body.length, + "Content-Type": "text/plain" + }); + res.end(body); + }); + this._server.listen( + options.port, + options.host, + options.backlog, + callback + ); + } else if (options.server) { + this._server = options.server; + } + if (this._server) { + const emitConnection = this.emit.bind(this, "connection"); + this._removeListeners = addListeners(this._server, { + listening: this.emit.bind(this, "listening"), + error: this.emit.bind(this, "error"), + upgrade: (req, socket, head) => { + this.handleUpgrade(req, socket, head, emitConnection); + } + }); + } + if (options.perMessageDeflate === true) + options.perMessageDeflate = {}; + if (options.clientTracking) { + this.clients = /* @__PURE__ */ new Set(); + this._shouldEmitClose = false; + } + this.options = options; + this._state = RUNNING; + } + /** + * Returns the bound address, the address family name, and port of the server + * as reported by the operating system if listening on an IP socket. + * If the server is listening on a pipe or UNIX domain socket, the name is + * returned as a string. + * + * @return {(Object|String|null)} The address of the server + * @public + */ + address() { + if (this.options.noServer) { + throw new Error('The server is operating in "noServer" mode'); + } + if (!this._server) + return null; + return this._server.address(); + } + /** + * Stop the server from accepting new connections and emit the `'close'` event + * when all existing connections are closed. + * + * @param {Function} [cb] A one-time listener for the `'close'` event + * @public + */ + close(cb) { + if (this._state === CLOSED) { + if (cb) { + this.once("close", () => { + cb(new Error("The server is not running")); + }); + } + process.nextTick(emitClose, this); + return; + } + if (cb) + this.once("close", cb); + if (this._state === CLOSING) + return; + this._state = CLOSING; + if (this.options.noServer || this.options.server) { + if (this._server) { + this._removeListeners(); + this._removeListeners = this._server = null; + } + if (this.clients) { + if (!this.clients.size) { + process.nextTick(emitClose, this); + } else { + this._shouldEmitClose = true; + } + } else { + process.nextTick(emitClose, this); + } + } else { + const server = this._server; + this._removeListeners(); + this._removeListeners = this._server = null; + server.close(() => { + emitClose(this); + }); + } + } + /** + * See if a given request should be handled by this server instance. + * + * @param {http.IncomingMessage} req Request object to inspect + * @return {Boolean} `true` if the request is valid, else `false` + * @public + */ + shouldHandle(req) { + if (this.options.path) { + const index = req.url.indexOf("?"); + const pathname = index !== -1 ? req.url.slice(0, index) : req.url; + if (pathname !== this.options.path) + return false; + } + return true; + } + /** + * Handle a HTTP Upgrade request. + * + * @param {http.IncomingMessage} req The request object + * @param {(net.Socket|tls.Socket)} socket The network socket between the + * server and client + * @param {Buffer} head The first packet of the upgraded stream + * @param {Function} cb Callback + * @public + */ + handleUpgrade(req, socket, head, cb) { + socket.on("error", socketOnError); + const key = req.headers["sec-websocket-key"]; + const version = +req.headers["sec-websocket-version"]; + if (req.method !== "GET") { + const message = "Invalid HTTP method"; + abortHandshakeOrEmitwsClientError(this, req, socket, 405, message); + return; + } + if (req.headers.upgrade.toLowerCase() !== "websocket") { + const message = "Invalid Upgrade header"; + abortHandshakeOrEmitwsClientError(this, req, socket, 400, message); + return; + } + if (!key || !keyRegex.test(key)) { + const message = "Missing or invalid Sec-WebSocket-Key header"; + abortHandshakeOrEmitwsClientError(this, req, socket, 400, message); + return; + } + if (version !== 8 && version !== 13) { + const message = "Missing or invalid Sec-WebSocket-Version header"; + abortHandshakeOrEmitwsClientError(this, req, socket, 400, message); + return; + } + if (!this.shouldHandle(req)) { + abortHandshake(socket, 400); + return; + } + const secWebSocketProtocol = req.headers["sec-websocket-protocol"]; + let protocols = /* @__PURE__ */ new Set(); + if (secWebSocketProtocol !== void 0) { + try { + protocols = subprotocol.parse(secWebSocketProtocol); + } catch (err) { + const message = "Invalid Sec-WebSocket-Protocol header"; + abortHandshakeOrEmitwsClientError(this, req, socket, 400, message); + return; + } + } + const secWebSocketExtensions = req.headers["sec-websocket-extensions"]; + const extensions = {}; + if (this.options.perMessageDeflate && secWebSocketExtensions !== void 0) { + const perMessageDeflate = new PerMessageDeflate2( + this.options.perMessageDeflate, + true, + this.options.maxPayload + ); + try { + const offers = extension.parse(secWebSocketExtensions); + if (offers[PerMessageDeflate2.extensionName]) { + perMessageDeflate.accept(offers[PerMessageDeflate2.extensionName]); + extensions[PerMessageDeflate2.extensionName] = perMessageDeflate; + } + } catch (err) { + const message = "Invalid or unacceptable Sec-WebSocket-Extensions header"; + abortHandshakeOrEmitwsClientError(this, req, socket, 400, message); + return; + } + } + if (this.options.verifyClient) { + const info = { + origin: req.headers[`${version === 8 ? "sec-websocket-origin" : "origin"}`], + secure: !!(req.socket.authorized || req.socket.encrypted), + req + }; + if (this.options.verifyClient.length === 2) { + this.options.verifyClient(info, (verified, code, message, headers) => { + if (!verified) { + return abortHandshake(socket, code || 401, message, headers); + } + this.completeUpgrade( + extensions, + key, + protocols, + req, + socket, + head, + cb + ); + }); + return; + } + if (!this.options.verifyClient(info)) + return abortHandshake(socket, 401); + } + this.completeUpgrade(extensions, key, protocols, req, socket, head, cb); + } + /** + * Upgrade the connection to WebSocket. + * + * @param {Object} extensions The accepted extensions + * @param {String} key The value of the `Sec-WebSocket-Key` header + * @param {Set} protocols The subprotocols + * @param {http.IncomingMessage} req The request object + * @param {(net.Socket|tls.Socket)} socket The network socket between the + * server and client + * @param {Buffer} head The first packet of the upgraded stream + * @param {Function} cb Callback + * @throws {Error} If called more than once with the same socket + * @private + */ + completeUpgrade(extensions, key, protocols, req, socket, head, cb) { + if (!socket.readable || !socket.writable) + return socket.destroy(); + if (socket[kWebSocket]) { + throw new Error( + "server.handleUpgrade() was called more than once with the same socket, possibly due to a misconfiguration" + ); + } + if (this._state > RUNNING) + return abortHandshake(socket, 503); + const digest = createHash("sha1").update(key + GUID).digest("base64"); + const headers = [ + "HTTP/1.1 101 Switching Protocols", + "Upgrade: websocket", + "Connection: Upgrade", + `Sec-WebSocket-Accept: ${digest}` + ]; + const ws = new this.options.WebSocket(null); + if (protocols.size) { + const protocol = this.options.handleProtocols ? this.options.handleProtocols(protocols, req) : protocols.values().next().value; + if (protocol) { + headers.push(`Sec-WebSocket-Protocol: ${protocol}`); + ws._protocol = protocol; + } + } + if (extensions[PerMessageDeflate2.extensionName]) { + const params = extensions[PerMessageDeflate2.extensionName].params; + const value = extension.format({ + [PerMessageDeflate2.extensionName]: [params] + }); + headers.push(`Sec-WebSocket-Extensions: ${value}`); + ws._extensions = extensions; + } + this.emit("headers", headers, req); + socket.write(headers.concat("\r\n").join("\r\n")); + socket.removeListener("error", socketOnError); + ws.setSocket(socket, head, { + maxPayload: this.options.maxPayload, + skipUTF8Validation: this.options.skipUTF8Validation + }); + if (this.clients) { + this.clients.add(ws); + ws.on("close", () => { + this.clients.delete(ws); + if (this._shouldEmitClose && !this.clients.size) { + process.nextTick(emitClose, this); + } + }); + } + cb(ws, req); + } +} +var websocketServer = WebSocketServer; +function addListeners(server, map) { + for (const event of Object.keys(map)) + server.on(event, map[event]); + return function removeListeners() { + for (const event of Object.keys(map)) { + server.removeListener(event, map[event]); + } + }; +} +function emitClose(server) { + server._state = CLOSED; + server.emit("close"); +} +function socketOnError() { + this.destroy(); +} +function abortHandshake(socket, code, message, headers) { + message = message || http.STATUS_CODES[code]; + headers = { + Connection: "close", + "Content-Type": "text/html", + "Content-Length": Buffer.byteLength(message), + ...headers + }; + socket.once("finish", socket.destroy); + socket.end( + `HTTP/1.1 ${code} ${http.STATUS_CODES[code]}\r +` + Object.keys(headers).map((h) => `${h}: ${headers[h]}`).join("\r\n") + "\r\n\r\n" + message + ); +} +function abortHandshakeOrEmitwsClientError(server, req, socket, code, message) { + if (server.listenerCount("wsClientError")) { + const err = new Error(message); + Error.captureStackTrace(err, abortHandshakeOrEmitwsClientError); + server.emit("wsClientError", err, socket, req); + } else { + abortHandshake(socket, code, message); + } +} +const websocketServer$1 = /* @__PURE__ */ getDefaultExportFromCjs(websocketServer); +export { + receiver$1 as Receiver, + sender$1 as Sender, + WebSocket$2 as WebSocket, + websocketServer$1 as WebSocketServer, + stream$1 as createWebSocketStream, + WebSocket$2 as default +};