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'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);

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 = /<meta.+?charset=(['"])(.+?)\1/i.exec(str);
	}

// html4
	if (!res && str) {
		res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str);
		if (!res) {
			res = /<meta[\s]+?content=(['"])(.+?)\1[\s]+?http-equiv=(['"])content-type\3/i.exec(str);
			if (res) {
				res.pop(); // drop last quote
			}
		}

if (res) {
			res = /charset=(.*)/i.exec(res.pop());
		}
	}

// xml
	if (!res && str) {
		res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str);
	}

// found charset
	if (res) {
		charset = res.pop();

// prevent decode issues when sites use incorrect encoding
		// ref: https://hsivonen.fi/encoding-menu/
		if (charset === 'gb2312' || charset === 'gbk') {
			charset = 'gb18030';
		}
	}

// turn raw buffers into a single utf-8 buffer
	return convert(buffer, 'UTF-8', charset).toString();
}

/**
 * Detect a URLSearchParams object
 * ref: https://github.com/bitinn/node-fetch/issues/296#issuecomment-307598143
 *
 * @param   Object  obj     Object to detect by type or brand
 * @return  String
 */
function isURLSearchParams(obj) {
	// Duck-typing as a necessary condition.
	if (typeof obj !== 'object' || typeof obj.append !== 'function' || typeof obj.delete !== 'function' || typeof obj.get !== 'function' || typeof obj.getAll !== 'function' || typeof obj.has !== 'function' || typeof obj.set !== 'function') {
		return false;
	}

// Brand-checking and more duck-typing as optional condition.
	return obj.constructor.name === 'URLSearchParams' || Object.prototype.toString.call(obj) === '[object URLSearchParams]' || typeof obj.sort === 'function';
}

/**
 * Check if `obj` is a W3C `Blob` object (which `File` inherits from)
 * @param  {*} obj
 * @return {boolean}
 */
function isBlob(obj) {
	return typeof obj === 'object' && typeof obj.arrayBuffer === 'function' && typeof obj.type === 'string' && typeof obj.stream === 'function' && typeof obj.constructor === 'function' && typeof obj.constructor.name === 'string' && /^(Blob|File)$/.test(obj.constructor.name) && /^(Blob|File)$/.test(obj[Symbol.toStringTag]);
}

/**
 * Clone body given Res/Req instance
 *
 * @param   Mixed  instance  Response or Request instance
 * @return  Mixed
 */
function clone(instance) {
	let p1, p2;
	let body = instance.body;

// don't allow cloning a used body
	if (instance.bodyUsed) {
		throw new Error('cannot clone body after it is used');
	}

// check that body is a stream and not form-data object
	// note: we can't clone the form-data object without having it as a dependency
	if (body instanceof Stream && typeof body.getBoundary !== 'function') {
		// tee instance body
		p1 = new PassThrough();
		p2 = new PassThrough();
		body.pipe(p1);
		body.pipe(p2);
		// set instance body to teed body and return the other teed body
		instance[INTERNALS].body = p1;
		body = p2;
	}

return body;
}

/**
 * Performs the operation "extract a `Content-Type` value from |object|" as
 * specified in the specification:
 * https://fetch.spec.whatwg.org/#concept-bodyinit-extract
 *
 * This function assumes that instance.body is present.
 *
 * @param   Mixed  instance  Any options.body input
 */
function extractContentType(body) {
	if (body === null) {
		// body is null
		return null;
	} else if (typeof body === 'string') {
		// body is string
		return 'text/plain;charset=UTF-8';
	} else if (isURLSearchParams(body)) {
		// body is a URLSearchParams
		return 'application/x-www-form-urlencoded;charset=UTF-8';
	} else if (isBlob(body)) {
		// body is blob
		return body.type || null;
	} else if (Buffer.isBuffer(body)) {
		// body is buffer
		return null;
	} else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
		// body is ArrayBuffer
		return null;
	} else if (ArrayBuffer.isView(body)) {
		// body is ArrayBufferView
		return null;
	} else if (typeof body.getBoundary === 'function') {
		// detect form data input from form-data module
		return `multipart/form-data;boundary=${body.getBoundary()}`;
	} else if (body instanceof Stream) {
		// body is stream
		// can't really do much about this
		return null;
	} else {
		// Body constructor defaults other things to string
		return 'text/plain;charset=UTF-8';
	}
}

/**
 * The Fetch Standard treats this as if "total bytes" is a property on the body.
 * For us, we have to explicitly get it with a function.
 *
 * ref: https://fetch.spec.whatwg.org/#concept-body-total-bytes
 *
 * @param   Body    instance   Instance of Body
 * @return  Number?            Number of bytes, or null if not possible
 */
function getTotalBytes(instance) {
	const body = instance.body;

if (body === null) {
		// body is null
		return 0;
	} else if (isBlob(body)) {
		return body.size;
	} else if (Buffer.isBuffer(body)) {
		// body is buffer
		return body.length;
	} else if (body && typeof body.getLengthSync === 'function') {
		// detect form data input from form-data module
		if (body._lengthRetrievers && body._lengthRetrievers.length == 0 || // 1.x
		body.hasKnownLength && body.hasKnownLength()) {
			// 2.x
			return body.getLengthSync();
		}
		return null;
	} else {
		// body is stream
		return null;
	}
}

/**
 * Write a Body to a Node.js WritableStream (e.g. http.Request) object.
 *
 * @param   Body    instance   Instance of Body
 * @return  Void
 */
function writeToStream(dest, instance) {
	const body = instance.body;

if (body === null) {
		// body is null
		dest.end();
	} else if (isBlob(body)) {
		body.stream().pipe(dest);
	} else if (Buffer.isBuffer(body)) {
		// body is buffer
		dest.write(body);
		dest.end();
	} else {
		// body is stream
		body.pipe(dest);
	}
}

// expose Promise
Body.Promise = global.Promise;

/**
 * headers.js
 *
 * Headers class offers convenient helpers
 */

const invalidTokenRegex = /[^\^_`a-zA-Z\-0-9!#$%&'*+.|~]/;
const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/;

function validateName(name) {
	name = `${name}`;
	if (invalidTokenRegex.test(name) || name === '') {
		throw new TypeError(`${name} is not a legal HTTP header name`);
	}
}

function validateValue(value) {
	value = `${value}`;
	if (invalidHeaderCharRegex.test(value)) {
		throw new TypeError(`${value} is not a legal HTTP header value`);
	}
}

/**
 * Find the key in the map object given a header name.
 *
 * Returns undefined if not found.
 *
 * @param   String  name  Header name
 * @return  String|Undefined
 */
function find(map, name) {
	name = name.toLowerCase();
	for (const key in map) {
		if (key.toLowerCase() === name) {
			return key;
		}
	}
	return undefined;
}

const MAP = Symbol('map');
class Headers {
	/**
  * Headers class
  *
  * @param   Object  headers  Response headers
  * @return  Void
  */
	constructor() {
		let init = arguments.length > 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<sequence<ByteString>>
				// 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<ByteString, ByteString>
				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 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);
	}

// 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) {
	let socket;

request.on('socket', function (s) {
		socket = s;
	});

request.on('response', function (response) {
		const headers = response.headers;

if (headers['transfer-encoding'] === 'chunked' && !headers['content-length']) {
			response.once('close', function (hadError) {
				// tests for socket presence, as in some situations the
				// the 'socket' event is not triggered for the request
				// (happens in deno), avoids `TypeError`
				// if a data listener is still present we didn't end cleanly
				const hasDataListener = socket && socket.listenerCount('data') > 0;

if (hasDataListener && !hadError) {
					const err = new Error('Premature close');
					err.code = 'ERR_STREAM_PREMATURE_CLOSE';
					errorCallback(err);
				}
			});
		}
	});
}

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;
exports.AbortError = AbortError;

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index.es.js	44.28 KB	lrw-r--r--	2026-02-09 23:04:48	Edit Download recursive recursive
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