From 468754d5ae7296bb97ccf4610ac0519dd67e97e5 Mon Sep 17 00:00:00 2001 From: Christian Kamm Date: Sat, 10 Jun 2023 08:05:06 +0200 Subject: [PATCH] try to override bad node-fetch code --- Procfile | 2 +- node-fetch-2.6.11-override-index.js | 1807 +++++++++++++++++++++++++++ 2 files changed, 1808 insertions(+), 1 deletion(-) create mode 100644 node-fetch-2.6.11-override-index.js diff --git a/Procfile b/Procfile index 192e8799c..31c0b7a2f 100644 --- a/Procfile +++ b/Procfile @@ -1,3 +1,3 @@ -mm: node dist/cjs/scripts/mm/market-maker.js +mm: cp node-fetch-2.6.11-override-index.js node_modules/node-fetch/lib/index.js && node dist/cjs/scripts/mm/market-maker.js rebalancer: node dist/cjs/scripts/rebalancer.js keeper: node dist/cjs/scripts/keeper/keeper.js diff --git a/node-fetch-2.6.11-override-index.js b/node-fetch-2.6.11-override-index.js new file mode 100644 index 000000000..ed1695fdb --- /dev/null +++ b/node-fetch-2.6.11-override-index.js @@ -0,0 +1,1807 @@ +'use strict'; + +Object.defineProperty(exports, '__esModule', { value: true }); + +function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; } + +var Stream = _interopDefault(require('stream')); +var http = _interopDefault(require('http')); +var Url = _interopDefault(require('url')); +var whatwgUrl = _interopDefault(require('whatwg-url')); +var https = _interopDefault(require('https')); +var zlib = _interopDefault(require('zlib')); + +// Based on https://github.com/tmpvar/jsdom/blob/aa85b2abf07766ff7bf5c1f6daafb3726f2f2db5/lib/jsdom/living/blob.js + +// fix for "Readable" isn't a named export issue +const Readable = Stream.Readable; + +const BUFFER = Symbol('buffer'); +const TYPE = Symbol('type'); + +class Blob { + constructor() { + this[TYPE] = ''; + + const blobParts = arguments[0]; + const options = arguments[1]; + + const buffers = []; + let size = 0; + + if (blobParts) { + const a = blobParts; + const length = Number(a.length); + for (let i = 0; i < length; i++) { + const element = a[i]; + let buffer; + if (element instanceof Buffer) { + buffer = element; + } else if (ArrayBuffer.isView(element)) { + buffer = Buffer.from(element.buffer, element.byteOffset, element.byteLength); + } else if (element instanceof ArrayBuffer) { + buffer = Buffer.from(element); + } else if (element instanceof Blob) { + buffer = element[BUFFER]; + } else { + buffer = Buffer.from(typeof element === 'string' ? element : String(element)); + } + size += buffer.length; + buffers.push(buffer); + } + } + + this[BUFFER] = Buffer.concat(buffers); + + let type = options && options.type !== undefined && String(options.type).toLowerCase(); + if (type && !/[^\u0020-\u007E]/.test(type)) { + this[TYPE] = type; + } + } + get size() { + return this[BUFFER].length; + } + get type() { + return this[TYPE]; + } + text() { + return Promise.resolve(this[BUFFER].toString()); + } + arrayBuffer() { + const buf = this[BUFFER]; + const ab = buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength); + return Promise.resolve(ab); + } + stream() { + const readable = new Readable(); + readable._read = function () {}; + readable.push(this[BUFFER]); + readable.push(null); + return readable; + } + toString() { + return '[object Blob]'; + } + slice() { + const size = this.size; + + const start = arguments[0]; + const end = arguments[1]; + let relativeStart, relativeEnd; + if (start === undefined) { + relativeStart = 0; + } else if (start < 0) { + relativeStart = Math.max(size + start, 0); + } else { + relativeStart = Math.min(start, size); + } + if (end === undefined) { + relativeEnd = size; + } else if (end < 0) { + relativeEnd = Math.max(size + end, 0); + } else { + relativeEnd = Math.min(end, size); + } + const span = Math.max(relativeEnd - relativeStart, 0); + + const buffer = this[BUFFER]; + const slicedBuffer = buffer.slice(relativeStart, relativeStart + span); + const blob = new Blob([], { type: arguments[2] }); + blob[BUFFER] = slicedBuffer; + return blob; + } +} + +Object.defineProperties(Blob.prototype, { + size: { enumerable: true }, + type: { enumerable: true }, + slice: { enumerable: true } +}); + +Object.defineProperty(Blob.prototype, Symbol.toStringTag, { + value: 'Blob', + writable: false, + enumerable: false, + configurable: true +}); + +/** + * fetch-error.js + * + * FetchError interface for operational errors + */ + +/** + * Create FetchError instance + * + * @param String message Error message for human + * @param String type Error type for machine + * @param String systemError For Node.js system error + * @return FetchError + */ +function FetchError(message, type, systemError) { + Error.call(this, message); + + this.message = message; + this.type = type; + + // when err.type is `system`, err.code contains system error code + if (systemError) { + this.code = this.errno = systemError.code; + } + + // hide custom error implementation details from end-users + Error.captureStackTrace(this, this.constructor); +} + +FetchError.prototype = Object.create(Error.prototype); +FetchError.prototype.constructor = FetchError; +FetchError.prototype.name = 'FetchError'; + +let convert; +try { + convert = require('encoding').convert; +} catch (e) {} + +const INTERNALS = Symbol('Body internals'); + +// fix an issue where "PassThrough" isn't a named export for node <10 +const PassThrough = Stream.PassThrough; + +/** + * Body mixin + * + * Ref: https://fetch.spec.whatwg.org/#body + * + * @param Stream body Readable stream + * @param Object opts Response options + * @return Void + */ +function Body(body) { + var _this = this; + + var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}, + _ref$size = _ref.size; + + let size = _ref$size === undefined ? 0 : _ref$size; + var _ref$timeout = _ref.timeout; + let timeout = _ref$timeout === undefined ? 0 : _ref$timeout; + + if (body == null) { + // body is undefined or null + body = null; + } else if (isURLSearchParams(body)) { + // body is a URLSearchParams + body = Buffer.from(body.toString()); + } else if (isBlob(body)) ; else if (Buffer.isBuffer(body)) ; else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') { + // body is ArrayBuffer + body = Buffer.from(body); + } else if (ArrayBuffer.isView(body)) { + // body is ArrayBufferView + body = Buffer.from(body.buffer, body.byteOffset, body.byteLength); + } else if (body instanceof Stream) ; else { + // none of the above + // coerce to string then buffer + body = Buffer.from(String(body)); + } + this[INTERNALS] = { + body, + disturbed: false, + error: null + }; + this.size = size; + this.timeout = timeout; + + if (body instanceof Stream) { + body.on('error', function (err) { + const error = err.name === 'AbortError' ? err : new FetchError(`Invalid response body while trying to fetch ${_this.url}: ${err.message}`, 'system', err); + _this[INTERNALS].error = error; + }); + } +} + +Body.prototype = { + get body() { + return this[INTERNALS].body; + }, + + get bodyUsed() { + return this[INTERNALS].disturbed; + }, + + /** + * Decode response as ArrayBuffer + * + * @return Promise + */ + arrayBuffer() { + return consumeBody.call(this).then(function (buf) { + return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength); + }); + }, + + /** + * Return raw response as Blob + * + * @return Promise + */ + blob() { + let ct = this.headers && this.headers.get('content-type') || ''; + return consumeBody.call(this).then(function (buf) { + return Object.assign( + // Prevent copying + new Blob([], { + type: ct.toLowerCase() + }), { + [BUFFER]: buf + }); + }); + }, + + /** + * Decode response as json + * + * @return Promise + */ + json() { + var _this2 = this; + + return consumeBody.call(this).then(function (buffer) { + try { + return JSON.parse(buffer.toString()); + } catch (err) { + return Body.Promise.reject(new FetchError(`invalid json response body at ${_this2.url} reason: ${err.message}`, 'invalid-json')); + } + }); + }, + + /** + * Decode response as text + * + * @return Promise + */ + text() { + return consumeBody.call(this).then(function (buffer) { + return buffer.toString(); + }); + }, + + /** + * Decode response as buffer (non-spec api) + * + * @return Promise + */ + buffer() { + return consumeBody.call(this); + }, + + /** + * Decode response as text, while automatically detecting the encoding and + * trying to decode to UTF-8 (non-spec api) + * + * @return Promise + */ + textConverted() { + var _this3 = this; + + return consumeBody.call(this).then(function (buffer) { + return convertBody(buffer, _this3.headers); + }); + } +}; + +// In browsers, all properties are enumerable. +Object.defineProperties(Body.prototype, { + body: { enumerable: true }, + bodyUsed: { enumerable: true }, + arrayBuffer: { enumerable: true }, + blob: { enumerable: true }, + json: { enumerable: true }, + text: { enumerable: true } +}); + +Body.mixIn = function (proto) { + for (const name of Object.getOwnPropertyNames(Body.prototype)) { + // istanbul ignore else: future proof + if (!(name in proto)) { + const desc = Object.getOwnPropertyDescriptor(Body.prototype, name); + Object.defineProperty(proto, name, desc); + } + } +}; + +/** + * Consume and convert an entire Body to a Buffer. + * + * Ref: https://fetch.spec.whatwg.org/#concept-body-consume-body + * + * @return Promise + */ +function consumeBody() { + var _this4 = this; + + if (this[INTERNALS].disturbed) { + return Body.Promise.reject(new TypeError(`body used already for: ${this.url}`)); + } + + this[INTERNALS].disturbed = true; + + if (this[INTERNALS].error) { + return Body.Promise.reject(this[INTERNALS].error); + } + + let body = this.body; + + // body is null + if (body === null) { + return Body.Promise.resolve(Buffer.alloc(0)); + } + + // body is blob + if (isBlob(body)) { + body = body.stream(); + } + + // body is buffer + if (Buffer.isBuffer(body)) { + return Body.Promise.resolve(body); + } + + // istanbul ignore if: should never happen + if (!(body instanceof Stream)) { + return Body.Promise.resolve(Buffer.alloc(0)); + } + + // body is stream + // get ready to actually consume the body + let accum = []; + let accumBytes = 0; + let abort = false; + + return new Body.Promise(function (resolve, reject) { + let resTimeout; + + // allow timeout on slow response body + if (_this4.timeout) { + resTimeout = setTimeout(function () { + abort = true; + reject(new FetchError(`Response timeout while trying to fetch ${_this4.url} (over ${_this4.timeout}ms)`, 'body-timeout')); + }, _this4.timeout); + } + + // handle stream errors + body.on('error', function (err) { + if (err.name === 'AbortError') { + // if the request was aborted, reject with this Error + abort = true; + reject(err); + } else { + // other errors, such as incorrect content-encoding + reject(new FetchError(`Invalid response body while trying to fetch ${_this4.url}: ${err.message}`, 'system', err)); + } + }); + + body.on('data', function (chunk) { + if (abort || chunk === null) { + return; + } + + if (_this4.size && accumBytes + chunk.length > _this4.size) { + abort = true; + reject(new FetchError(`content size at ${_this4.url} over limit: ${_this4.size}`, 'max-size')); + return; + } + + accumBytes += chunk.length; + accum.push(chunk); + }); + + body.on('end', function () { + if (abort) { + return; + } + + clearTimeout(resTimeout); + + try { + resolve(Buffer.concat(accum, accumBytes)); + } catch (err) { + // handle streams that have accumulated too much data (issue #414) + reject(new FetchError(`Could not create Buffer from response body for ${_this4.url}: ${err.message}`, 'system', err)); + } + }); + }); +} + +/** + * Detect buffer encoding and convert to target encoding + * ref: http://www.w3.org/TR/2011/WD-html5-20110113/parsing.html#determining-the-character-encoding + * + * @param Buffer buffer Incoming buffer + * @param String encoding Target encoding + * @return String + */ +function convertBody(buffer, headers) { + if (typeof convert !== 'function') { + throw new Error('The package `encoding` must be installed to use the textConverted() function'); + } + + const ct = headers.get('content-type'); + let charset = 'utf-8'; + let res, str; + + // header + if (ct) { + res = /charset=([^;]*)/i.exec(ct); + } + + // no charset in content type, peek at response body for at most 1024 bytes + str = buffer.slice(0, 1024).toString(); + + // html5 + if (!res && str) { + res = / 0 && arguments[0] !== undefined ? arguments[0] : undefined; + + this[MAP] = Object.create(null); + + if (init instanceof Headers) { + const rawHeaders = init.raw(); + const headerNames = Object.keys(rawHeaders); + + for (const headerName of headerNames) { + for (const value of rawHeaders[headerName]) { + this.append(headerName, value); + } + } + + return; + } + + // We don't worry about converting prop to ByteString here as append() + // will handle it. + if (init == null) ; else if (typeof init === 'object') { + const method = init[Symbol.iterator]; + if (method != null) { + if (typeof method !== 'function') { + throw new TypeError('Header pairs must be iterable'); + } + + // sequence> + // Note: per spec we have to first exhaust the lists then process them + const pairs = []; + for (const pair of init) { + if (typeof pair !== 'object' || typeof pair[Symbol.iterator] !== 'function') { + throw new TypeError('Each header pair must be iterable'); + } + pairs.push(Array.from(pair)); + } + + for (const pair of pairs) { + if (pair.length !== 2) { + throw new TypeError('Each header pair must be a name/value tuple'); + } + this.append(pair[0], pair[1]); + } + } else { + // record + for (const key of Object.keys(init)) { + const value = init[key]; + this.append(key, value); + } + } + } else { + throw new TypeError('Provided initializer must be an object'); + } + } + + /** + * Return combined header value given name + * + * @param String name Header name + * @return Mixed + */ + get(name) { + name = `${name}`; + validateName(name); + const key = find(this[MAP], name); + if (key === undefined) { + return null; + } + + return this[MAP][key].join(', '); + } + + /** + * Iterate over all headers + * + * @param Function callback Executed for each item with parameters (value, name, thisArg) + * @param Boolean thisArg `this` context for callback function + * @return Void + */ + forEach(callback) { + let thisArg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : undefined; + + let pairs = getHeaders(this); + let i = 0; + while (i < pairs.length) { + var _pairs$i = pairs[i]; + const name = _pairs$i[0], + value = _pairs$i[1]; + + callback.call(thisArg, value, name, this); + pairs = getHeaders(this); + i++; + } + } + + /** + * Overwrite header values given name + * + * @param String name Header name + * @param String value Header value + * @return Void + */ + set(name, value) { + name = `${name}`; + value = `${value}`; + validateName(name); + validateValue(value); + const key = find(this[MAP], name); + this[MAP][key !== undefined ? key : name] = [value]; + } + + /** + * Append a value onto existing header + * + * @param String name Header name + * @param String value Header value + * @return Void + */ + append(name, value) { + name = `${name}`; + value = `${value}`; + validateName(name); + validateValue(value); + const key = find(this[MAP], name); + if (key !== undefined) { + this[MAP][key].push(value); + } else { + this[MAP][name] = [value]; + } + } + + /** + * Check for header name existence + * + * @param String name Header name + * @return Boolean + */ + has(name) { + name = `${name}`; + validateName(name); + return find(this[MAP], name) !== undefined; + } + + /** + * Delete all header values given name + * + * @param String name Header name + * @return Void + */ + delete(name) { + name = `${name}`; + validateName(name); + const key = find(this[MAP], name); + if (key !== undefined) { + delete this[MAP][key]; + } + } + + /** + * Return raw headers (non-spec api) + * + * @return Object + */ + raw() { + return this[MAP]; + } + + /** + * Get an iterator on keys. + * + * @return Iterator + */ + keys() { + return createHeadersIterator(this, 'key'); + } + + /** + * Get an iterator on values. + * + * @return Iterator + */ + values() { + return createHeadersIterator(this, 'value'); + } + + /** + * Get an iterator on entries. + * + * This is the default iterator of the Headers object. + * + * @return Iterator + */ + [Symbol.iterator]() { + return createHeadersIterator(this, 'key+value'); + } +} +Headers.prototype.entries = Headers.prototype[Symbol.iterator]; + +Object.defineProperty(Headers.prototype, Symbol.toStringTag, { + value: 'Headers', + writable: false, + enumerable: false, + configurable: true +}); + +Object.defineProperties(Headers.prototype, { + get: { enumerable: true }, + forEach: { enumerable: true }, + set: { enumerable: true }, + append: { enumerable: true }, + has: { enumerable: true }, + delete: { enumerable: true }, + keys: { enumerable: true }, + values: { enumerable: true }, + entries: { enumerable: true } +}); + +function getHeaders(headers) { + let kind = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'key+value'; + + const keys = Object.keys(headers[MAP]).sort(); + return keys.map(kind === 'key' ? function (k) { + return k.toLowerCase(); + } : kind === 'value' ? function (k) { + return headers[MAP][k].join(', '); + } : function (k) { + return [k.toLowerCase(), headers[MAP][k].join(', ')]; + }); +} + +const INTERNAL = Symbol('internal'); + +function createHeadersIterator(target, kind) { + const iterator = Object.create(HeadersIteratorPrototype); + iterator[INTERNAL] = { + target, + kind, + index: 0 + }; + return iterator; +} + +const HeadersIteratorPrototype = Object.setPrototypeOf({ + next() { + // istanbul ignore if + if (!this || Object.getPrototypeOf(this) !== HeadersIteratorPrototype) { + throw new TypeError('Value of `this` is not a HeadersIterator'); + } + + var _INTERNAL = this[INTERNAL]; + const target = _INTERNAL.target, + kind = _INTERNAL.kind, + index = _INTERNAL.index; + + const values = getHeaders(target, kind); + const len = values.length; + if (index >= len) { + return { + value: undefined, + done: true + }; + } + + this[INTERNAL].index = index + 1; + + return { + value: values[index], + done: false + }; + } +}, Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]()))); + +Object.defineProperty(HeadersIteratorPrototype, Symbol.toStringTag, { + value: 'HeadersIterator', + writable: false, + enumerable: false, + configurable: true +}); + +/** + * Export the Headers object in a form that Node.js can consume. + * + * @param Headers headers + * @return Object + */ +function exportNodeCompatibleHeaders(headers) { + const obj = Object.assign({ __proto__: null }, headers[MAP]); + + // http.request() only supports string as Host header. This hack makes + // specifying custom Host header possible. + const hostHeaderKey = find(headers[MAP], 'Host'); + if (hostHeaderKey !== undefined) { + obj[hostHeaderKey] = obj[hostHeaderKey][0]; + } + + return obj; +} + +/** + * Create a Headers object from an object of headers, ignoring those that do + * not conform to HTTP grammar productions. + * + * @param Object obj Object of headers + * @return Headers + */ +function createHeadersLenient(obj) { + const headers = new Headers(); + for (const name of Object.keys(obj)) { + if (invalidTokenRegex.test(name)) { + continue; + } + if (Array.isArray(obj[name])) { + for (const val of obj[name]) { + if (invalidHeaderCharRegex.test(val)) { + continue; + } + if (headers[MAP][name] === undefined) { + headers[MAP][name] = [val]; + } else { + headers[MAP][name].push(val); + } + } + } else if (!invalidHeaderCharRegex.test(obj[name])) { + headers[MAP][name] = [obj[name]]; + } + } + return headers; +} + +const INTERNALS$1 = Symbol('Response internals'); + +// fix an issue where "STATUS_CODES" aren't a named export for node <10 +const STATUS_CODES = http.STATUS_CODES; + +/** + * Response class + * + * @param Stream body Readable stream + * @param Object opts Response options + * @return Void + */ +class Response { + constructor() { + let body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null; + let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; + + Body.call(this, body, opts); + + const status = opts.status || 200; + const headers = new Headers(opts.headers); + + if (body != null && !headers.has('Content-Type')) { + const contentType = extractContentType(body); + if (contentType) { + headers.append('Content-Type', contentType); + } + } + + this[INTERNALS$1] = { + url: opts.url, + status, + statusText: opts.statusText || STATUS_CODES[status], + headers, + counter: opts.counter + }; + } + + get url() { + return this[INTERNALS$1].url || ''; + } + + get status() { + return this[INTERNALS$1].status; + } + + /** + * Convenience property representing if the request ended normally + */ + get ok() { + return this[INTERNALS$1].status >= 200 && this[INTERNALS$1].status < 300; + } + + get redirected() { + return this[INTERNALS$1].counter > 0; + } + + get statusText() { + return this[INTERNALS$1].statusText; + } + + get headers() { + return this[INTERNALS$1].headers; + } + + /** + * Clone this response + * + * @return Response + */ + clone() { + return new Response(clone(this), { + url: this.url, + status: this.status, + statusText: this.statusText, + headers: this.headers, + ok: this.ok, + redirected: this.redirected + }); + } +} + +Body.mixIn(Response.prototype); + +Object.defineProperties(Response.prototype, { + url: { enumerable: true }, + status: { enumerable: true }, + ok: { enumerable: true }, + redirected: { enumerable: true }, + statusText: { enumerable: true }, + headers: { enumerable: true }, + clone: { enumerable: true } +}); + +Object.defineProperty(Response.prototype, Symbol.toStringTag, { + value: 'Response', + writable: false, + enumerable: false, + configurable: true +}); + +const INTERNALS$2 = Symbol('Request internals'); +const URL = Url.URL || whatwgUrl.URL; + +// fix an issue where "format", "parse" aren't a named export for node <10 +const parse_url = Url.parse; +const format_url = Url.format; + +/** + * Wrapper around `new URL` to handle arbitrary URLs + * + * @param {string} urlStr + * @return {void} + */ +function parseURL(urlStr) { + /* + Check whether the URL is absolute or not + Scheme: https://tools.ietf.org/html/rfc3986#section-3.1 + Absolute URL: https://tools.ietf.org/html/rfc3986#section-4.3 + */ + if (/^[a-zA-Z][a-zA-Z\d+\-.]*:/.exec(urlStr)) { + urlStr = new URL(urlStr).toString(); + } + + // Fallback to old implementation for arbitrary URLs + return parse_url(urlStr); +} + +const streamDestructionSupported = 'destroy' in Stream.Readable.prototype; + +/** + * Check if a value is an instance of Request. + * + * @param Mixed input + * @return Boolean + */ +function isRequest(input) { + return typeof input === 'object' && typeof input[INTERNALS$2] === 'object'; +} + +function isAbortSignal(signal) { + const proto = signal && typeof signal === 'object' && Object.getPrototypeOf(signal); + return !!(proto && proto.constructor.name === 'AbortSignal'); +} + +/** + * Request class + * + * @param Mixed input Url or Request instance + * @param Object init Custom options + * @return Void + */ +class Request { + constructor(input) { + let init = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; + + let parsedURL; + + // normalize input + if (!isRequest(input)) { + if (input && input.href) { + // in order to support Node.js' Url objects; though WHATWG's URL objects + // will fall into this branch also (since their `toString()` will return + // `href` property anyway) + parsedURL = parseURL(input.href); + } else { + // coerce input to a string before attempting to parse + parsedURL = parseURL(`${input}`); + } + input = {}; + } else { + parsedURL = parseURL(input.url); + } + + let method = init.method || input.method || 'GET'; + method = method.toUpperCase(); + + if ((init.body != null || isRequest(input) && input.body !== null) && (method === 'GET' || method === 'HEAD')) { + throw new TypeError('Request with GET/HEAD method cannot have body'); + } + + let inputBody = init.body != null ? init.body : isRequest(input) && input.body !== null ? clone(input) : null; + + Body.call(this, inputBody, { + timeout: init.timeout || input.timeout || 0, + size: init.size || input.size || 0 + }); + + const headers = new Headers(init.headers || input.headers || {}); + + if (inputBody != null && !headers.has('Content-Type')) { + const contentType = extractContentType(inputBody); + if (contentType) { + headers.append('Content-Type', contentType); + } + } + + let signal = isRequest(input) ? input.signal : null; + if ('signal' in init) signal = init.signal; + + if (signal != null && !isAbortSignal(signal)) { + throw new TypeError('Expected signal to be an instanceof AbortSignal'); + } + + this[INTERNALS$2] = { + method, + redirect: init.redirect || input.redirect || 'follow', + headers, + parsedURL, + signal + }; + + // node-fetch-only options + this.follow = init.follow !== undefined ? init.follow : input.follow !== undefined ? input.follow : 20; + this.compress = init.compress !== undefined ? init.compress : input.compress !== undefined ? input.compress : true; + this.counter = init.counter || input.counter || 0; + this.agent = init.agent || input.agent; + } + + get method() { + return this[INTERNALS$2].method; + } + + get url() { + return format_url(this[INTERNALS$2].parsedURL); + } + + get headers() { + return this[INTERNALS$2].headers; + } + + get redirect() { + return this[INTERNALS$2].redirect; + } + + get signal() { + return this[INTERNALS$2].signal; + } + + /** + * Clone this request + * + * @return Request + */ + clone() { + return new Request(this); + } +} + +Body.mixIn(Request.prototype); + +Object.defineProperty(Request.prototype, Symbol.toStringTag, { + value: 'Request', + writable: false, + enumerable: false, + configurable: true +}); + +Object.defineProperties(Request.prototype, { + method: { enumerable: true }, + url: { enumerable: true }, + headers: { enumerable: true }, + redirect: { enumerable: true }, + clone: { enumerable: true }, + signal: { enumerable: true } +}); + +/** + * Convert a Request to Node.js http request options. + * + * @param Request A Request instance + * @return Object The options object to be passed to http.request + */ +function getNodeRequestOptions(request) { + const parsedURL = request[INTERNALS$2].parsedURL; + const headers = new Headers(request[INTERNALS$2].headers); + + // fetch step 1.3 + if (!headers.has('Accept')) { + headers.set('Accept', '*/*'); + } + + // Basic fetch + if (!parsedURL.protocol || !parsedURL.hostname) { + throw new TypeError('Only absolute URLs are supported'); + } + + if (!/^https?:$/.test(parsedURL.protocol)) { + throw new TypeError('Only HTTP(S) protocols are supported'); + } + + if (request.signal && request.body instanceof Stream.Readable && !streamDestructionSupported) { + throw new Error('Cancellation of streamed requests with AbortSignal is not supported in node < 8'); + } + + // HTTP-network-or-cache fetch steps 2.4-2.7 + let contentLengthValue = null; + if (request.body == null && /^(POST|PUT)$/i.test(request.method)) { + contentLengthValue = '0'; + } + if (request.body != null) { + const totalBytes = getTotalBytes(request); + if (typeof totalBytes === 'number') { + contentLengthValue = String(totalBytes); + } + } + if (contentLengthValue) { + headers.set('Content-Length', contentLengthValue); + } + + // HTTP-network-or-cache fetch step 2.11 + if (!headers.has('User-Agent')) { + headers.set('User-Agent', 'node-fetch/1.0 (+https://github.com/bitinn/node-fetch)'); + } + + // HTTP-network-or-cache fetch step 2.15 + if (request.compress && !headers.has('Accept-Encoding')) { + headers.set('Accept-Encoding', 'gzip,deflate'); + } + + let agent = request.agent; + if (typeof agent === 'function') { + agent = agent(parsedURL); + } + + if (!headers.has('Connection') && !agent) { + headers.set('Connection', 'close'); + } + + // HTTP-network fetch step 4.2 + // chunked encoding is handled by Node.js + + return Object.assign({}, parsedURL, { + method: request.method, + headers: exportNodeCompatibleHeaders(headers), + agent + }); +} + +/** + * abort-error.js + * + * AbortError interface for cancelled requests + */ + +/** + * Create AbortError instance + * + * @param String message Error message for human + * @return AbortError + */ +function AbortError(message) { + Error.call(this, message); + + this.type = 'aborted'; + this.message = message; + + // hide custom error implementation details from end-users + Error.captureStackTrace(this, this.constructor); +} + +AbortError.prototype = Object.create(Error.prototype); +AbortError.prototype.constructor = AbortError; +AbortError.prototype.name = 'AbortError'; + +const URL$1 = Url.URL || whatwgUrl.URL; + +// fix an issue where "PassThrough", "resolve" aren't a named export for node <10 +const PassThrough$1 = Stream.PassThrough; + +const isDomainOrSubdomain = function isDomainOrSubdomain(destination, original) { + const orig = new URL$1(original).hostname; + const dest = new URL$1(destination).hostname; + + return orig === dest || orig[orig.length - dest.length - 1] === '.' && orig.endsWith(dest); +}; + +/** + * isSameProtocol reports whether the two provided URLs use the same protocol. + * + * Both domains must already be in canonical form. + * @param {string|URL} original + * @param {string|URL} destination + */ +const isSameProtocol = function isSameProtocol(destination, original) { + const orig = new URL$1(original).protocol; + const dest = new URL$1(destination).protocol; + + return orig === dest; +}; + +/** + * Fetch function + * + * @param Mixed url Absolute url or Request instance + * @param Object opts Fetch options + * @return Promise + */ +function fetch(url, opts) { + + // allow custom promise + if (!fetch.Promise) { + throw new Error('native promise missing, set fetch.Promise to your favorite alternative'); + } + + Body.Promise = fetch.Promise; + + // wrap http.request into fetch + return new fetch.Promise(function (resolve, reject) { + // build request object + const request = new Request(url, opts); + const options = getNodeRequestOptions(request); + + const send = (options.protocol === 'https:' ? https : http).request; + const signal = request.signal; + + let response = null; + + const abort = function abort() { + let error = new AbortError('The user aborted a request.'); + reject(error); + if (request.body && request.body instanceof Stream.Readable) { + destroyStream(request.body, error); + } + if (!response || !response.body) return; + response.body.emit('error', error); + }; + + if (signal && signal.aborted) { + abort(); + return; + } + + const abortAndFinalize = function abortAndFinalize() { + abort(); + finalize(); + }; + + // send request + const req = send(options); + let reqTimeout; + + if (signal) { + signal.addEventListener('abort', abortAndFinalize); + } + + function finalize() { + req.abort(); + if (signal) signal.removeEventListener('abort', abortAndFinalize); + clearTimeout(reqTimeout); + } + + if (request.timeout) { + req.once('socket', function (socket) { + reqTimeout = setTimeout(function () { + reject(new FetchError(`network timeout at: ${request.url}`, 'request-timeout')); + finalize(); + }, request.timeout); + }); + } + + req.on('error', function (err) { + reject(new FetchError(`request to ${request.url} failed, reason: ${err.message}`, 'system', err)); + + if (response && response.body) { + destroyStream(response.body, err); + } + + finalize(); + }); + + fixResponseChunkedTransferBadEnding(req, function (err) { + if (signal && signal.aborted) { + return; + } + + if (response && response.body) { + destroyStream(response.body, err); + } + }); + + /* c8 ignore next 18 */ + if (parseInt(process.version.substring(1)) < 14) { + // Before Node.js 14, pipeline() does not fully support async iterators and does not always + // properly handle when the socket close/end events are out of order. + req.on('socket', function (s) { + s.addListener('close', function (hadError) { + // if a data listener is still present we didn't end cleanly + const hasDataListener = s.listenerCount('data') > 0; + + // if end happened before close but the socket didn't emit an error, do it now + if (response && hasDataListener && !hadError && !(signal && signal.aborted)) { + const err = new Error('Premature close'); + err.code = 'ERR_STREAM_PREMATURE_CLOSE'; + response.body.emit('error', err); + } + }); + }); + } + + req.on('response', function (res) { + clearTimeout(reqTimeout); + + const headers = createHeadersLenient(res.headers); + + // HTTP fetch step 5 + if (fetch.isRedirect(res.statusCode)) { + // HTTP fetch step 5.2 + const location = headers.get('Location'); + + // HTTP fetch step 5.3 + let locationURL = null; + try { + locationURL = location === null ? null : new URL$1(location, request.url).toString(); + } catch (err) { + // error here can only be invalid URL in Location: header + // do not throw when options.redirect == manual + // let the user extract the errorneous redirect URL + if (request.redirect !== 'manual') { + reject(new FetchError(`uri requested responds with an invalid redirect URL: ${location}`, 'invalid-redirect')); + finalize(); + return; + } + } + + // HTTP fetch step 5.5 + switch (request.redirect) { + case 'error': + reject(new FetchError(`uri requested responds with a redirect, redirect mode is set to error: ${request.url}`, 'no-redirect')); + finalize(); + return; + case 'manual': + // node-fetch-specific step: make manual redirect a bit easier to use by setting the Location header value to the resolved URL. + if (locationURL !== null) { + // handle corrupted header + try { + headers.set('Location', locationURL); + } catch (err) { + // istanbul ignore next: nodejs server prevent invalid response headers, we can't test this through normal request + reject(err); + } + } + break; + case 'follow': + // HTTP-redirect fetch step 2 + if (locationURL === null) { + break; + } + + // HTTP-redirect fetch step 5 + if (request.counter >= request.follow) { + reject(new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect')); + finalize(); + return; + } + + // HTTP-redirect fetch step 6 (counter increment) + // Create a new Request object. + const requestOpts = { + headers: new Headers(request.headers), + follow: request.follow, + counter: request.counter + 1, + agent: request.agent, + compress: request.compress, + method: request.method, + body: request.body, + signal: request.signal, + timeout: request.timeout, + size: request.size + }; + + if (!isDomainOrSubdomain(request.url, locationURL) || !isSameProtocol(request.url, locationURL)) { + for (const name of ['authorization', 'www-authenticate', 'cookie', 'cookie2']) { + requestOpts.headers.delete(name); + } + } + + // HTTP-redirect fetch step 9 + if (res.statusCode !== 303 && request.body && getTotalBytes(request) === null) { + reject(new FetchError('Cannot follow redirect with body being a readable stream', 'unsupported-redirect')); + finalize(); + return; + } + + // HTTP-redirect fetch step 11 + if (res.statusCode === 303 || (res.statusCode === 301 || res.statusCode === 302) && request.method === 'POST') { + requestOpts.method = 'GET'; + requestOpts.body = undefined; + requestOpts.headers.delete('content-length'); + } + + // HTTP-redirect fetch step 15 + resolve(fetch(new Request(locationURL, requestOpts))); + finalize(); + return; + } + } + + // prepare response + res.once('end', function () { + if (signal) signal.removeEventListener('abort', abortAndFinalize); + }); + let body = res.pipe(new PassThrough$1()); + + const response_options = { + url: request.url, + status: res.statusCode, + statusText: res.statusMessage, + headers: headers, + size: request.size, + timeout: request.timeout, + counter: request.counter + }; + + // HTTP-network fetch step 12.1.1.3 + const codings = headers.get('Content-Encoding'); + + // HTTP-network fetch step 12.1.1.4: handle content codings + + // in following scenarios we ignore compression support + // 1. compression support is disabled + // 2. HEAD request + // 3. no Content-Encoding header + // 4. no content response (204) + // 5. content not modified response (304) + if (!request.compress || request.method === 'HEAD' || codings === null || res.statusCode === 204 || res.statusCode === 304) { + response = new Response(body, response_options); + resolve(response); + return; + } + + // For Node v6+ + // Be less strict when decoding compressed responses, since sometimes + // servers send slightly invalid responses that are still accepted + // by common browsers. + // Always using Z_SYNC_FLUSH is what cURL does. + const zlibOptions = { + flush: zlib.Z_SYNC_FLUSH, + finishFlush: zlib.Z_SYNC_FLUSH + }; + + // for gzip + if (codings == 'gzip' || codings == 'x-gzip') { + body = body.pipe(zlib.createGunzip(zlibOptions)); + response = new Response(body, response_options); + resolve(response); + return; + } + + // for deflate + if (codings == 'deflate' || codings == 'x-deflate') { + // handle the infamous raw deflate response from old servers + // a hack for old IIS and Apache servers + const raw = res.pipe(new PassThrough$1()); + raw.once('data', function (chunk) { + // see http://stackoverflow.com/questions/37519828 + if ((chunk[0] & 0x0F) === 0x08) { + body = body.pipe(zlib.createInflate()); + } else { + body = body.pipe(zlib.createInflateRaw()); + } + response = new Response(body, response_options); + resolve(response); + }); + raw.on('end', function () { + // some old IIS servers return zero-length OK deflate responses, so 'data' is never emitted. + if (!response) { + response = new Response(body, response_options); + resolve(response); + } + }); + return; + } + + // for br + if (codings == 'br' && typeof zlib.createBrotliDecompress === 'function') { + body = body.pipe(zlib.createBrotliDecompress()); + response = new Response(body, response_options); + resolve(response); + return; + } + + // otherwise, use response as-is + response = new Response(body, response_options); + resolve(response); + }); + + writeToStream(req, request); + }); +} +function fixResponseChunkedTransferBadEnding(request, errorCallback) { + const LAST_CHUNK = Buffer.from('0\r\n\r\n'); + + let isChunkedTransfer = false; + let properLastChunkReceived = false; + let previousChunk; + + request.on('response', response => { + const {headers} = response; + isChunkedTransfer = headers['transfer-encoding'] === 'chunked' && !headers['content-length']; + }); + + request.on('socket', socket => { + const onSocketClose = () => { + if (isChunkedTransfer && !properLastChunkReceived) { + const error = new Error('Premature close'); + error.code = 'ERR_STREAM_PREMATURE_CLOSE'; + errorCallback(error); + } + }; + + const onData = buf => { + properLastChunkReceived = Buffer.compare(buf.slice(-5), LAST_CHUNK) === 0; + + // Sometimes final 0-length chunk and end of message code are in separate packets + if (!properLastChunkReceived && previousChunk) { + properLastChunkReceived = ( + Buffer.compare(previousChunk.slice(-3), LAST_CHUNK.slice(0, 3)) === 0 && + Buffer.compare(buf.slice(-2), LAST_CHUNK.slice(3)) === 0 + ); + } + + previousChunk = buf; + }; + + socket.prependListener('close', onSocketClose); + socket.on('data', onData); + + request.on('close', () => { + socket.removeListener('close', onSocketClose); + socket.removeListener('data', onData); + }); + }); +} + +function destroyStream(stream, err) { + if (stream.destroy) { + stream.destroy(err); + } else { + // node < 8 + stream.emit('error', err); + stream.end(); + } +} + +/** + * Redirect code matching + * + * @param Number code Status code + * @return Boolean + */ +fetch.isRedirect = function (code) { + return code === 301 || code === 302 || code === 303 || code === 307 || code === 308; +}; + +// expose Promise +fetch.Promise = global.Promise; + +module.exports = exports = fetch; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.default = exports; +exports.Headers = Headers; +exports.Request = Request; +exports.Response = Response; +exports.FetchError = FetchError;