1417 lines
34 KiB
JavaScript
1417 lines
34 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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// Based on https://github.com/tmpvar/jsdom/blob/aa85b2abf07766ff7bf5c1f6daafb3726f2f2db5/lib/jsdom/living/blob.js
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// (MIT licensed)
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const BUFFER = Symbol('buffer');
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const TYPE = Symbol('type');
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const CLOSED = Symbol('closed');
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class Blob {
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constructor() {
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Object.defineProperty(this, Symbol.toStringTag, {
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value: 'Blob',
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writable: false,
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enumerable: false,
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configurable: true
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});
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this[CLOSED] = false;
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this[TYPE] = '';
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const blobParts = arguments[0];
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const options = arguments[1];
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const buffers = [];
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if (blobParts) {
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const a = blobParts;
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const length = Number(a.length);
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for (let i = 0; i < length; i++) {
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const element = a[i];
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let buffer;
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if (element instanceof Buffer) {
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buffer = element;
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} else if (ArrayBuffer.isView(element)) {
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buffer = Buffer.from(element.buffer, element.byteOffset, element.byteLength);
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} else if (element instanceof ArrayBuffer) {
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buffer = Buffer.from(element);
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} else if (element instanceof Blob) {
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buffer = element[BUFFER];
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} else {
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buffer = Buffer.from(typeof element === 'string' ? element : String(element));
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}
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buffers.push(buffer);
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}
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}
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this[BUFFER] = Buffer.concat(buffers);
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let type = options && options.type !== undefined && String(options.type).toLowerCase();
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if (type && !/[^\u0020-\u007E]/.test(type)) {
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this[TYPE] = type;
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}
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}
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get size() {
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return this[CLOSED] ? 0 : this[BUFFER].length;
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}
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get type() {
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return this[TYPE];
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}
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get isClosed() {
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return this[CLOSED];
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}
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slice() {
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const size = this.size;
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const start = arguments[0];
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const end = arguments[1];
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let relativeStart, relativeEnd;
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if (start === undefined) {
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relativeStart = 0;
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} else if (start < 0) {
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relativeStart = Math.max(size + start, 0);
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} else {
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relativeStart = Math.min(start, size);
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}
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if (end === undefined) {
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relativeEnd = size;
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} else if (end < 0) {
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relativeEnd = Math.max(size + end, 0);
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} else {
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relativeEnd = Math.min(end, size);
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}
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const span = Math.max(relativeEnd - relativeStart, 0);
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const buffer = this[BUFFER];
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const slicedBuffer = buffer.slice(relativeStart, relativeStart + span);
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const blob = new Blob([], { type: arguments[2] });
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blob[BUFFER] = slicedBuffer;
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blob[CLOSED] = this[CLOSED];
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return blob;
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}
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close() {
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this[CLOSED] = true;
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}
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}
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Object.defineProperty(Blob.prototype, Symbol.toStringTag, {
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value: 'BlobPrototype',
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writable: false,
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enumerable: false,
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configurable: true
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});
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/**
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* fetch-error.js
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*
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* FetchError interface for operational errors
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*/
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/**
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* Create FetchError instance
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*
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* @param String message Error message for human
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* @param String type Error type for machine
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* @param String systemError For Node.js system error
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* @return FetchError
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*/
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function FetchError(message, type, systemError) {
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Error.call(this, message);
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this.message = message;
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this.type = type;
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// when err.type is `system`, err.code contains system error code
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if (systemError) {
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this.code = this.errno = systemError.code;
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}
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// hide custom error implementation details from end-users
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Error.captureStackTrace(this, this.constructor);
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}
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FetchError.prototype = Object.create(Error.prototype);
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FetchError.prototype.constructor = FetchError;
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FetchError.prototype.name = 'FetchError';
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/**
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* body.js
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*
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* Body interface provides common methods for Request and Response
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*/
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const Stream = require('stream');
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var _require$1 = require('stream');
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const PassThrough$1 = _require$1.PassThrough;
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const DISTURBED = Symbol('disturbed');
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let convert;
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try {
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convert = require('encoding').convert;
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} catch (e) {}
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/**
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* Body class
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*
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* Cannot use ES6 class because Body must be called with .call().
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*
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* @param Stream body Readable stream
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* @param Object opts Response options
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* @return Void
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*/
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function Body(body) {
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var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
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_ref$size = _ref.size;
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let size = _ref$size === undefined ? 0 : _ref$size;
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var _ref$timeout = _ref.timeout;
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let timeout = _ref$timeout === undefined ? 0 : _ref$timeout;
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if (body == null) {
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// body is undefined or null
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body = null;
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} else if (typeof body === 'string') {
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// body is string
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} else if (isURLSearchParams(body)) {
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// body is a URLSearchParams
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} else if (body instanceof Blob) {
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// body is blob
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} else if (Buffer.isBuffer(body)) {
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// body is buffer
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} else if (body instanceof Stream) {
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// body is stream
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} else {
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// none of the above
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// coerce to string
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body = String(body);
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}
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this.body = body;
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this[DISTURBED] = false;
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this.size = size;
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this.timeout = timeout;
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}
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Body.prototype = {
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get bodyUsed() {
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return this[DISTURBED];
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},
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/**
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* Decode response as ArrayBuffer
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*
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* @return Promise
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*/
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arrayBuffer() {
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return consumeBody.call(this).then(function (buf) {
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return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
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});
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},
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/**
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* Return raw response as Blob
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*
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* @return Promise
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*/
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blob() {
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let ct = this.headers && this.headers.get('content-type') || '';
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return consumeBody.call(this).then(function (buf) {
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return Object.assign(
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// Prevent copying
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new Blob([], {
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type: ct.toLowerCase()
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}), {
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[BUFFER]: buf
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});
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});
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},
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/**
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* Decode response as json
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*
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* @return Promise
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*/
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json() {
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var _this = this;
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return consumeBody.call(this).then(function (buffer) {
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try {
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return JSON.parse(buffer.toString());
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} catch (err) {
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return Body.Promise.reject(new FetchError(`invalid json response body at ${_this.url} reason: ${err.message}`, 'invalid-json'));
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}
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});
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},
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/**
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* Decode response as text
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*
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* @return Promise
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*/
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text() {
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return consumeBody.call(this).then(function (buffer) {
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return buffer.toString();
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});
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},
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/**
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* Decode response as buffer (non-spec api)
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*
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* @return Promise
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*/
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buffer() {
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return consumeBody.call(this);
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},
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/**
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* Decode response as text, while automatically detecting the encoding and
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* trying to decode to UTF-8 (non-spec api)
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*
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* @return Promise
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*/
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textConverted() {
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var _this2 = this;
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return consumeBody.call(this).then(function (buffer) {
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return convertBody(buffer, _this2.headers);
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});
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}
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};
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Body.mixIn = function (proto) {
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for (const name of Object.getOwnPropertyNames(Body.prototype)) {
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// istanbul ignore else: future proof
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if (!(name in proto)) {
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const desc = Object.getOwnPropertyDescriptor(Body.prototype, name);
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Object.defineProperty(proto, name, desc);
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}
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}
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};
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/**
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* Decode buffers into utf-8 string
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*
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* @return Promise
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*/
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function consumeBody(body) {
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var _this3 = this;
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if (this[DISTURBED]) {
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return Body.Promise.reject(new Error(`body used already for: ${this.url}`));
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}
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this[DISTURBED] = true;
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// body is null
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if (this.body === null) {
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return Body.Promise.resolve(Buffer.alloc(0));
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}
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// body is string
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if (typeof this.body === 'string') {
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return Body.Promise.resolve(Buffer.from(this.body));
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}
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// body is blob
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if (this.body instanceof Blob) {
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return Body.Promise.resolve(this.body[BUFFER]);
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}
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// body is buffer
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if (Buffer.isBuffer(this.body)) {
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return Body.Promise.resolve(this.body);
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}
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// istanbul ignore if: should never happen
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if (!(this.body instanceof Stream)) {
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return Body.Promise.resolve(Buffer.alloc(0));
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}
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// body is stream
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// get ready to actually consume the body
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let accum = [];
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let accumBytes = 0;
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let abort = false;
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return new Body.Promise(function (resolve, reject) {
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let resTimeout;
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// allow timeout on slow response body
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if (_this3.timeout) {
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resTimeout = setTimeout(function () {
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abort = true;
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reject(new FetchError(`Response timeout while trying to fetch ${_this3.url} (over ${_this3.timeout}ms)`, 'body-timeout'));
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}, _this3.timeout);
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}
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// handle stream error, such as incorrect content-encoding
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_this3.body.on('error', function (err) {
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reject(new FetchError(`Invalid response body while trying to fetch ${_this3.url}: ${err.message}`, 'system', err));
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});
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_this3.body.on('data', function (chunk) {
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if (abort || chunk === null) {
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return;
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}
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if (_this3.size && accumBytes + chunk.length > _this3.size) {
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abort = true;
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reject(new FetchError(`content size at ${_this3.url} over limit: ${_this3.size}`, 'max-size'));
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return;
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}
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accumBytes += chunk.length;
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accum.push(chunk);
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});
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_this3.body.on('end', function () {
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if (abort) {
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return;
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}
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clearTimeout(resTimeout);
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resolve(Buffer.concat(accum));
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});
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});
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}
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/**
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* Detect buffer encoding and convert to target encoding
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* ref: http://www.w3.org/TR/2011/WD-html5-20110113/parsing.html#determining-the-character-encoding
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*
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* @param Buffer buffer Incoming buffer
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* @param String encoding Target encoding
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* @return String
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*/
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function convertBody(buffer, headers) {
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if (typeof convert !== 'function') {
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throw new Error('The package `encoding` must be installed to use the textConverted() function');
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}
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const ct = headers.get('content-type');
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let charset = 'utf-8';
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let res, str;
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// header
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if (ct) {
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res = /charset=([^;]*)/i.exec(ct);
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}
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// no charset in content type, peek at response body for at most 1024 bytes
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str = buffer.slice(0, 1024).toString();
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// html5
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if (!res && str) {
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res = /<meta.+?charset=(['"])(.+?)\1/i.exec(str);
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}
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// html4
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if (!res && str) {
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res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str);
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if (res) {
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res = /charset=(.*)/i.exec(res.pop());
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}
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}
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// xml
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if (!res && str) {
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res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str);
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}
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// found charset
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if (res) {
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charset = res.pop();
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// prevent decode issues when sites use incorrect encoding
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// ref: https://hsivonen.fi/encoding-menu/
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if (charset === 'gb2312' || charset === 'gbk') {
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charset = 'gb18030';
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}
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}
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// turn raw buffers into a single utf-8 buffer
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return convert(buffer, 'UTF-8', charset).toString();
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}
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/**
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* Detect a URLSearchParams object
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* ref: https://github.com/bitinn/node-fetch/issues/296#issuecomment-307598143
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*
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* @param Object obj Object to detect by type or brand
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* @return String
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*/
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function isURLSearchParams(obj) {
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// Duck-typing as a necessary condition.
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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') {
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return false;
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}
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// Brand-checking and more duck-typing as optional condition.
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return obj.constructor.name === 'URLSearchParams' || Object.prototype.toString.call(obj) === '[object URLSearchParams]' || typeof obj.sort === 'function';
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}
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/**
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* Clone body given Res/Req instance
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*
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* @param Mixed instance Response or Request instance
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* @return Mixed
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*/
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function clone(instance) {
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let p1, p2;
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let body = instance.body;
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// don't allow cloning a used body
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if (instance.bodyUsed) {
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throw new Error('cannot clone body after it is used');
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}
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// check that body is a stream and not form-data object
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// note: we can't clone the form-data object without having it as a dependency
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if (body instanceof Stream && typeof body.getBoundary !== 'function') {
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// tee instance body
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p1 = new PassThrough$1();
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p2 = new PassThrough$1();
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body.pipe(p1);
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body.pipe(p2);
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// set instance body to teed body and return the other teed body
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instance.body = p1;
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body = p2;
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}
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return body;
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}
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/**
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* Performs the operation "extract a `Content-Type` value from |object|" as
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* specified in the specification:
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* https://fetch.spec.whatwg.org/#concept-bodyinit-extract
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*
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* This function assumes that instance.body is present and non-null.
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*
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* @param Mixed instance Response or Request instance
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*/
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function extractContentType(instance) {
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const body = instance.body;
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// istanbul ignore if: Currently, because of a guard in Request, body
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// can never be null. Included here for completeness.
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if (body === null) {
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// body is null
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return null;
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} else if (typeof body === 'string') {
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// body is string
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return 'text/plain;charset=UTF-8';
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} else if (isURLSearchParams(body)) {
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// body is a URLSearchParams
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return 'application/x-www-form-urlencoded;charset=UTF-8';
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} else if (body instanceof Blob) {
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// body is blob
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return body.type || null;
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} else if (Buffer.isBuffer(body)) {
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// body is buffer
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return null;
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} else if (typeof body.getBoundary === 'function') {
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// detect form data input from form-data module
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return `multipart/form-data;boundary=${body.getBoundary()}`;
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} else {
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// body is stream
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// can't really do much about this
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return null;
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}
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}
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function getTotalBytes(instance) {
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const body = instance.body;
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// istanbul ignore if: included for completion
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if (body === null) {
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// body is null
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return 0;
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} else if (typeof body === 'string') {
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// body is string
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return Buffer.byteLength(body);
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} else if (isURLSearchParams(body)) {
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// body is URLSearchParams
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return Buffer.byteLength(String(body));
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} else if (body instanceof Blob) {
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// body is blob
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return body.size;
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} else if (Buffer.isBuffer(body)) {
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// body is buffer
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return body.length;
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} else if (body && typeof body.getLengthSync === 'function') {
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// detect form data input from form-data module
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if (body._lengthRetrievers && body._lengthRetrievers.length == 0 || // 1.x
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body.hasKnownLength && body.hasKnownLength()) {
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// 2.x
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return body.getLengthSync();
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}
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return null;
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} else {
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// body is stream
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|
// can't really do much about this
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return null;
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}
|
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}
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|
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function writeToStream(dest, instance) {
|
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const body = instance.body;
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if (body === null) {
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// body is null
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dest.end();
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} else if (typeof body === 'string') {
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// body is string
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dest.write(body);
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dest.end();
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|
} else if (isURLSearchParams(body)) {
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// body is URLSearchParams
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dest.write(Buffer.from(String(body)));
|
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dest.end();
|
|
} else if (body instanceof Blob) {
|
|
// body is blob
|
|
dest.write(body[BUFFER]);
|
|
dest.end();
|
|
} 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;
|
|
|
|
/**
|
|
* A set of utilities borrowed from Node.js' _http_common.js
|
|
*/
|
|
|
|
/**
|
|
* Verifies that the given val is a valid HTTP token
|
|
* per the rules defined in RFC 7230
|
|
* See https://tools.ietf.org/html/rfc7230#section-3.2.6
|
|
*
|
|
* Allowed characters in an HTTP token:
|
|
* ^_`a-z 94-122
|
|
* A-Z 65-90
|
|
* - 45
|
|
* 0-9 48-57
|
|
* ! 33
|
|
* #$%&' 35-39
|
|
* *+ 42-43
|
|
* . 46
|
|
* | 124
|
|
* ~ 126
|
|
*
|
|
* This implementation of checkIsHttpToken() loops over the string instead of
|
|
* using a regular expression since the former is up to 180% faster with v8 4.9
|
|
* depending on the string length (the shorter the string, the larger the
|
|
* performance difference)
|
|
*
|
|
* Additionally, checkIsHttpToken() is currently designed to be inlinable by v8,
|
|
* so take care when making changes to the implementation so that the source
|
|
* code size does not exceed v8's default max_inlined_source_size setting.
|
|
**/
|
|
/* istanbul ignore next */
|
|
function isValidTokenChar(ch) {
|
|
if (ch >= 94 && ch <= 122) return true;
|
|
if (ch >= 65 && ch <= 90) return true;
|
|
if (ch === 45) return true;
|
|
if (ch >= 48 && ch <= 57) return true;
|
|
if (ch === 34 || ch === 40 || ch === 41 || ch === 44) return false;
|
|
if (ch >= 33 && ch <= 46) return true;
|
|
if (ch === 124 || ch === 126) return true;
|
|
return false;
|
|
}
|
|
/* istanbul ignore next */
|
|
function checkIsHttpToken(val) {
|
|
if (typeof val !== 'string' || val.length === 0) return false;
|
|
if (!isValidTokenChar(val.charCodeAt(0))) return false;
|
|
const len = val.length;
|
|
if (len > 1) {
|
|
if (!isValidTokenChar(val.charCodeAt(1))) return false;
|
|
if (len > 2) {
|
|
if (!isValidTokenChar(val.charCodeAt(2))) return false;
|
|
if (len > 3) {
|
|
if (!isValidTokenChar(val.charCodeAt(3))) return false;
|
|
for (var i = 4; i < len; i++) {
|
|
if (!isValidTokenChar(val.charCodeAt(i))) return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
/**
|
|
* True if val contains an invalid field-vchar
|
|
* field-value = *( field-content / obs-fold )
|
|
* field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
|
|
* field-vchar = VCHAR / obs-text
|
|
*
|
|
* checkInvalidHeaderChar() is currently designed to be inlinable by v8,
|
|
* so take care when making changes to the implementation so that the source
|
|
* code size does not exceed v8's default max_inlined_source_size setting.
|
|
**/
|
|
/* istanbul ignore next */
|
|
function checkInvalidHeaderChar(val) {
|
|
val += '';
|
|
if (val.length < 1) return false;
|
|
var c = val.charCodeAt(0);
|
|
if (c <= 31 && c !== 9 || c > 255 || c === 127) return true;
|
|
if (val.length < 2) return false;
|
|
c = val.charCodeAt(1);
|
|
if (c <= 31 && c !== 9 || c > 255 || c === 127) return true;
|
|
if (val.length < 3) return false;
|
|
c = val.charCodeAt(2);
|
|
if (c <= 31 && c !== 9 || c > 255 || c === 127) return true;
|
|
for (var i = 3; i < val.length; ++i) {
|
|
c = val.charCodeAt(i);
|
|
if (c <= 31 && c !== 9 || c > 255 || c === 127) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* headers.js
|
|
*
|
|
* Headers class offers convenient helpers
|
|
*/
|
|
|
|
function sanitizeName(name) {
|
|
name += '';
|
|
if (!checkIsHttpToken(name)) {
|
|
throw new TypeError(`${name} is not a legal HTTP header name`);
|
|
}
|
|
return name.toLowerCase();
|
|
}
|
|
|
|
function sanitizeValue(value) {
|
|
value += '';
|
|
if (checkInvalidHeaderChar(value)) {
|
|
throw new TypeError(`${value} is not a legal HTTP header value`);
|
|
}
|
|
return value;
|
|
}
|
|
|
|
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) {
|
|
// no op
|
|
} 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');
|
|
}
|
|
|
|
Object.defineProperty(this, Symbol.toStringTag, {
|
|
value: 'Headers',
|
|
writable: false,
|
|
enumerable: false,
|
|
configurable: true
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Return first header value given name
|
|
*
|
|
* @param String name Header name
|
|
* @return Mixed
|
|
*/
|
|
get(name) {
|
|
const list = this[MAP][sanitizeName(name)];
|
|
if (!list) {
|
|
return null;
|
|
}
|
|
|
|
return list.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 = getHeaderPairs(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 = getHeaderPairs(this);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Overwrite header values given name
|
|
*
|
|
* @param String name Header name
|
|
* @param String value Header value
|
|
* @return Void
|
|
*/
|
|
set(name, value) {
|
|
this[MAP][sanitizeName(name)] = [sanitizeValue(value)];
|
|
}
|
|
|
|
/**
|
|
* Append a value onto existing header
|
|
*
|
|
* @param String name Header name
|
|
* @param String value Header value
|
|
* @return Void
|
|
*/
|
|
append(name, value) {
|
|
if (!this.has(name)) {
|
|
this.set(name, value);
|
|
return;
|
|
}
|
|
|
|
this[MAP][sanitizeName(name)].push(sanitizeValue(value));
|
|
}
|
|
|
|
/**
|
|
* Check for header name existence
|
|
*
|
|
* @param String name Header name
|
|
* @return Boolean
|
|
*/
|
|
has(name) {
|
|
return !!this[MAP][sanitizeName(name)];
|
|
}
|
|
|
|
/**
|
|
* Delete all header values given name
|
|
*
|
|
* @param String name Header name
|
|
* @return Void
|
|
*/
|
|
delete(name) {
|
|
delete this[MAP][sanitizeName(name)];
|
|
}
|
|
|
|
/**
|
|
* 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: 'HeadersPrototype',
|
|
writable: false,
|
|
enumerable: false,
|
|
configurable: true
|
|
});
|
|
|
|
function getHeaderPairs(headers, kind) {
|
|
const keys = Object.keys(headers[MAP]).sort();
|
|
return keys.map(kind === 'key' ? function (k) {
|
|
return [k];
|
|
} : function (k) {
|
|
return [k, headers.get(k)];
|
|
});
|
|
}
|
|
|
|
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 = getHeaderPairs(target, kind);
|
|
const len = values.length;
|
|
if (index >= len) {
|
|
return {
|
|
value: undefined,
|
|
done: true
|
|
};
|
|
}
|
|
|
|
const pair = values[index];
|
|
this[INTERNAL].index = index + 1;
|
|
|
|
let result;
|
|
if (kind === 'key') {
|
|
result = pair[0];
|
|
} else if (kind === 'value') {
|
|
result = pair[1];
|
|
} else {
|
|
result = pair;
|
|
}
|
|
|
|
return {
|
|
value: result,
|
|
done: false
|
|
};
|
|
}
|
|
}, Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())));
|
|
|
|
Object.defineProperty(HeadersIteratorPrototype, Symbol.toStringTag, {
|
|
value: 'HeadersIterator',
|
|
writable: false,
|
|
enumerable: false,
|
|
configurable: true
|
|
});
|
|
|
|
/**
|
|
* response.js
|
|
*
|
|
* Response class provides content decoding
|
|
*/
|
|
|
|
var _require$2 = require('http');
|
|
|
|
const STATUS_CODES = _require$2.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);
|
|
|
|
this.url = opts.url;
|
|
this.status = opts.status || 200;
|
|
this.statusText = opts.statusText || STATUS_CODES[this.status];
|
|
|
|
this.headers = new Headers(opts.headers);
|
|
|
|
Object.defineProperty(this, Symbol.toStringTag, {
|
|
value: 'Response',
|
|
writable: false,
|
|
enumerable: false,
|
|
configurable: true
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Convenience property representing if the request ended normally
|
|
*/
|
|
get ok() {
|
|
return this.status >= 200 && this.status < 300;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
});
|
|
}
|
|
}
|
|
|
|
Body.mixIn(Response.prototype);
|
|
|
|
Object.defineProperty(Response.prototype, Symbol.toStringTag, {
|
|
value: 'ResponsePrototype',
|
|
writable: false,
|
|
enumerable: false,
|
|
configurable: true
|
|
});
|
|
|
|
/**
|
|
* request.js
|
|
*
|
|
* Request class contains server only options
|
|
*/
|
|
|
|
var _require$3 = require('url');
|
|
|
|
const format_url = _require$3.format;
|
|
const parse_url = _require$3.parse;
|
|
|
|
|
|
const PARSED_URL = Symbol('url');
|
|
|
|
/**
|
|
* Request class
|
|
*
|
|
* @param Mixed input Url or Request instance
|
|
* @param Object init Custom options
|
|
* @return Void
|
|
*/
|
|
class Request {
|
|
constructor(input) {
|
|
let init = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
|
|
|
|
let parsedURL;
|
|
|
|
// normalize input
|
|
if (!(input instanceof Request)) {
|
|
if (input && input.href) {
|
|
// in order to support Node.js' Url objects; though WHATWG's URL objects
|
|
// will fall into this branch also (since their `toString()` will return
|
|
// `href` property anyway)
|
|
parsedURL = parse_url(input.href);
|
|
} else {
|
|
// coerce input to a string before attempting to parse
|
|
parsedURL = parse_url(`${input}`);
|
|
}
|
|
input = {};
|
|
} else {
|
|
parsedURL = parse_url(input.url);
|
|
}
|
|
|
|
let method = init.method || input.method || 'GET';
|
|
|
|
if ((init.body != null || input instanceof Request && 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 : input instanceof Request && input.body !== null ? clone(input) : null;
|
|
|
|
Body.call(this, inputBody, {
|
|
timeout: init.timeout || input.timeout || 0,
|
|
size: init.size || input.size || 0
|
|
});
|
|
|
|
// fetch spec options
|
|
this.method = method.toUpperCase();
|
|
this.redirect = init.redirect || input.redirect || 'follow';
|
|
this.headers = new Headers(init.headers || input.headers || {});
|
|
|
|
if (init.body != null) {
|
|
const contentType = extractContentType(this);
|
|
if (contentType !== null && !this.headers.has('Content-Type')) {
|
|
this.headers.append('Content-Type', contentType);
|
|
}
|
|
}
|
|
|
|
// server 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;
|
|
|
|
this[PARSED_URL] = parsedURL;
|
|
Object.defineProperty(this, Symbol.toStringTag, {
|
|
value: 'Request',
|
|
writable: false,
|
|
enumerable: false,
|
|
configurable: true
|
|
});
|
|
}
|
|
|
|
get url() {
|
|
return format_url(this[PARSED_URL]);
|
|
}
|
|
|
|
/**
|
|
* Clone this request
|
|
*
|
|
* @return Request
|
|
*/
|
|
clone() {
|
|
return new Request(this);
|
|
}
|
|
}
|
|
|
|
Body.mixIn(Request.prototype);
|
|
|
|
Object.defineProperty(Request.prototype, Symbol.toStringTag, {
|
|
value: 'RequestPrototype',
|
|
writable: false,
|
|
enumerable: false,
|
|
configurable: true
|
|
});
|
|
|
|
function getNodeRequestOptions(request) {
|
|
const parsedURL = request[PARSED_URL];
|
|
const headers = new Headers(request.headers);
|
|
|
|
// fetch step 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?:$/.test(parsedURL.protocol)) {
|
|
throw new TypeError('Only HTTP(S) protocols are supported');
|
|
}
|
|
|
|
// HTTP-network-or-cache fetch steps 5-9
|
|
let contentLengthValue = null;
|
|
if (request.body == null && /^(POST|PUT)$/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 12
|
|
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 16
|
|
if (request.compress) {
|
|
headers.set('Accept-Encoding', 'gzip,deflate');
|
|
}
|
|
if (!headers.has('Connection') && !request.agent) {
|
|
headers.set('Connection', 'close');
|
|
}
|
|
|
|
// HTTP-network fetch step 4
|
|
// chunked encoding is handled by Node.js
|
|
|
|
return Object.assign({}, parsedURL, {
|
|
method: request.method,
|
|
headers: headers.raw(),
|
|
agent: request.agent
|
|
});
|
|
}
|
|
|
|
/**
|
|
* index.js
|
|
*
|
|
* a request API compatible with window.fetch
|
|
*/
|
|
|
|
const http = require('http');
|
|
const https = require('https');
|
|
|
|
var _require = require('stream');
|
|
|
|
const PassThrough = _require.PassThrough;
|
|
|
|
var _require2 = require('url');
|
|
|
|
const resolve_url = _require2.resolve;
|
|
|
|
const zlib = require('zlib');
|
|
|
|
/**
|
|
* 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;
|
|
|
|
// http.request only support string as host header, this hack make custom host header possible
|
|
if (options.headers.host) {
|
|
options.headers.host = options.headers.host[0];
|
|
}
|
|
|
|
// send request
|
|
const req = send(options);
|
|
let reqTimeout;
|
|
|
|
if (request.timeout) {
|
|
req.once('socket', function (socket) {
|
|
reqTimeout = setTimeout(function () {
|
|
req.abort();
|
|
reject(new FetchError(`network timeout at: ${request.url}`, 'request-timeout'));
|
|
}, request.timeout);
|
|
});
|
|
}
|
|
|
|
req.on('error', function (err) {
|
|
clearTimeout(reqTimeout);
|
|
reject(new FetchError(`request to ${request.url} failed, reason: ${err.message}`, 'system', err));
|
|
});
|
|
|
|
req.on('response', function (res) {
|
|
clearTimeout(reqTimeout);
|
|
|
|
// handle redirect
|
|
if (fetch.isRedirect(res.statusCode) && request.redirect !== 'manual') {
|
|
if (request.redirect === 'error') {
|
|
reject(new FetchError(`redirect mode is set to error: ${request.url}`, 'no-redirect'));
|
|
return;
|
|
}
|
|
|
|
if (request.counter >= request.follow) {
|
|
reject(new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect'));
|
|
return;
|
|
}
|
|
|
|
if (!res.headers.location) {
|
|
reject(new FetchError(`redirect location header missing at: ${request.url}`, 'invalid-redirect'));
|
|
return;
|
|
}
|
|
|
|
// per fetch spec, for POST request with 301/302 response, or any request with 303 response, use GET when following redirect
|
|
if (res.statusCode === 303 || (res.statusCode === 301 || res.statusCode === 302) && request.method === 'POST') {
|
|
request.method = 'GET';
|
|
request.body = null;
|
|
request.headers.delete('content-length');
|
|
}
|
|
|
|
request.counter++;
|
|
|
|
resolve(fetch(resolve_url(request.url, res.headers.location), request));
|
|
return;
|
|
}
|
|
|
|
// normalize location header for manual redirect mode
|
|
const headers = new Headers();
|
|
for (const name of Object.keys(res.headers)) {
|
|
if (Array.isArray(res.headers[name])) {
|
|
for (const val of res.headers[name]) {
|
|
headers.append(name, val);
|
|
}
|
|
} else {
|
|
headers.append(name, res.headers[name]);
|
|
}
|
|
}
|
|
if (request.redirect === 'manual' && headers.has('location')) {
|
|
headers.set('location', resolve_url(request.url, headers.get('location')));
|
|
}
|
|
|
|
// prepare response
|
|
let body = res.pipe(new PassThrough());
|
|
const response_options = {
|
|
url: request.url,
|
|
status: res.statusCode,
|
|
statusText: res.statusMessage,
|
|
headers: headers,
|
|
size: request.size,
|
|
timeout: request.timeout
|
|
};
|
|
|
|
// HTTP-network fetch step 16.1.2
|
|
const codings = headers.get('Content-Encoding');
|
|
|
|
// HTTP-network fetch step 16.1.3: 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) {
|
|
resolve(new Response(body, response_options));
|
|
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));
|
|
resolve(new Response(body, response_options));
|
|
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());
|
|
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());
|
|
}
|
|
resolve(new Response(body, response_options));
|
|
});
|
|
return;
|
|
}
|
|
|
|
// otherwise, use response as-is
|
|
resolve(new Response(body, response_options));
|
|
});
|
|
|
|
writeToStream(req, request);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
exports.Headers = Headers;
|
|
exports.Request = Request;
|
|
exports.Response = Response;
|
|
exports.FetchError = FetchError;
|