532 lines
14 KiB
JavaScript
532 lines
14 KiB
JavaScript
(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
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typeof define === 'function' && define.amd ? define(['exports'], factory) :
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(factory((global.WHATWGFetch = {})));
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}(this, (function (exports) { 'use strict';
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var support = {
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searchParams: 'URLSearchParams' in self,
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iterable: 'Symbol' in self && 'iterator' in Symbol,
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blob:
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'FileReader' in self &&
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'Blob' in self &&
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(function() {
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try {
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new Blob();
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return true
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} catch (e) {
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return false
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}
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})(),
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formData: 'FormData' in self,
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arrayBuffer: 'ArrayBuffer' in self
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};
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function isDataView(obj) {
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return obj && DataView.prototype.isPrototypeOf(obj)
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}
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if (support.arrayBuffer) {
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var viewClasses = [
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'[object Int8Array]',
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'[object Uint8Array]',
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'[object Uint8ClampedArray]',
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'[object Int16Array]',
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'[object Uint16Array]',
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'[object Int32Array]',
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'[object Uint32Array]',
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'[object Float32Array]',
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'[object Float64Array]'
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];
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var isArrayBufferView =
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ArrayBuffer.isView ||
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function(obj) {
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return obj && viewClasses.indexOf(Object.prototype.toString.call(obj)) > -1
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};
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}
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function normalizeName(name) {
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if (typeof name !== 'string') {
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name = String(name);
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}
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if (/[^a-z0-9\-#$%&'*+.^_`|~]/i.test(name)) {
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throw new TypeError('Invalid character in header field name')
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}
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return name.toLowerCase()
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}
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function normalizeValue(value) {
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if (typeof value !== 'string') {
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value = String(value);
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}
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return value
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}
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// Build a destructive iterator for the value list
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function iteratorFor(items) {
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var iterator = {
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next: function() {
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var value = items.shift();
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return {done: value === undefined, value: value}
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}
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};
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if (support.iterable) {
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iterator[Symbol.iterator] = function() {
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return iterator
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};
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}
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return iterator
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}
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function Headers(headers) {
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this.map = {};
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if (headers instanceof Headers) {
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headers.forEach(function(value, name) {
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this.append(name, value);
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}, this);
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} else if (Array.isArray(headers)) {
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headers.forEach(function(header) {
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this.append(header[0], header[1]);
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}, this);
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} else if (headers) {
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Object.getOwnPropertyNames(headers).forEach(function(name) {
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this.append(name, headers[name]);
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}, this);
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}
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}
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Headers.prototype.append = function(name, value) {
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name = normalizeName(name);
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value = normalizeValue(value);
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var oldValue = this.map[name];
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this.map[name] = oldValue ? oldValue + ', ' + value : value;
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};
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Headers.prototype['delete'] = function(name) {
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delete this.map[normalizeName(name)];
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};
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Headers.prototype.get = function(name) {
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name = normalizeName(name);
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return this.has(name) ? this.map[name] : null
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};
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Headers.prototype.has = function(name) {
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return this.map.hasOwnProperty(normalizeName(name))
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};
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Headers.prototype.set = function(name, value) {
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this.map[normalizeName(name)] = normalizeValue(value);
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};
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Headers.prototype.forEach = function(callback, thisArg) {
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for (var name in this.map) {
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if (this.map.hasOwnProperty(name)) {
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callback.call(thisArg, this.map[name], name, this);
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}
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}
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};
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Headers.prototype.keys = function() {
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var items = [];
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this.forEach(function(value, name) {
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items.push(name);
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});
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return iteratorFor(items)
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};
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Headers.prototype.values = function() {
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var items = [];
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this.forEach(function(value) {
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items.push(value);
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});
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return iteratorFor(items)
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};
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Headers.prototype.entries = function() {
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var items = [];
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this.forEach(function(value, name) {
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items.push([name, value]);
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});
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return iteratorFor(items)
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};
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if (support.iterable) {
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Headers.prototype[Symbol.iterator] = Headers.prototype.entries;
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}
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function consumed(body) {
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if (body.bodyUsed) {
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return Promise.reject(new TypeError('Already read'))
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}
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body.bodyUsed = true;
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}
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function fileReaderReady(reader) {
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return new Promise(function(resolve, reject) {
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reader.onload = function() {
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resolve(reader.result);
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};
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reader.onerror = function() {
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reject(reader.error);
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};
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})
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}
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function readBlobAsArrayBuffer(blob) {
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var reader = new FileReader();
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var promise = fileReaderReady(reader);
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reader.readAsArrayBuffer(blob);
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return promise
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}
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function readBlobAsText(blob) {
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var reader = new FileReader();
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var promise = fileReaderReady(reader);
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reader.readAsText(blob);
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return promise
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}
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function readArrayBufferAsText(buf) {
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var view = new Uint8Array(buf);
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var chars = new Array(view.length);
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for (var i = 0; i < view.length; i++) {
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chars[i] = String.fromCharCode(view[i]);
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}
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return chars.join('')
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}
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function bufferClone(buf) {
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if (buf.slice) {
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return buf.slice(0)
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} else {
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var view = new Uint8Array(buf.byteLength);
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view.set(new Uint8Array(buf));
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return view.buffer
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}
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}
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function Body() {
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this.bodyUsed = false;
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this._initBody = function(body) {
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this._bodyInit = body;
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if (!body) {
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this._bodyText = '';
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} else if (typeof body === 'string') {
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this._bodyText = body;
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} else if (support.blob && Blob.prototype.isPrototypeOf(body)) {
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this._bodyBlob = body;
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} else if (support.formData && FormData.prototype.isPrototypeOf(body)) {
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this._bodyFormData = body;
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} else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
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this._bodyText = body.toString();
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} else if (support.arrayBuffer && support.blob && isDataView(body)) {
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this._bodyArrayBuffer = bufferClone(body.buffer);
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// IE 10-11 can't handle a DataView body.
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this._bodyInit = new Blob([this._bodyArrayBuffer]);
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} else if (support.arrayBuffer && (ArrayBuffer.prototype.isPrototypeOf(body) || isArrayBufferView(body))) {
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this._bodyArrayBuffer = bufferClone(body);
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} else {
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this._bodyText = body = Object.prototype.toString.call(body);
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}
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if (!this.headers.get('content-type')) {
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if (typeof body === 'string') {
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this.headers.set('content-type', 'text/plain;charset=UTF-8');
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} else if (this._bodyBlob && this._bodyBlob.type) {
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this.headers.set('content-type', this._bodyBlob.type);
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} else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
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this.headers.set('content-type', 'application/x-www-form-urlencoded;charset=UTF-8');
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}
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}
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};
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if (support.blob) {
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this.blob = function() {
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var rejected = consumed(this);
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if (rejected) {
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return rejected
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}
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if (this._bodyBlob) {
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return Promise.resolve(this._bodyBlob)
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} else if (this._bodyArrayBuffer) {
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return Promise.resolve(new Blob([this._bodyArrayBuffer]))
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} else if (this._bodyFormData) {
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throw new Error('could not read FormData body as blob')
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} else {
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return Promise.resolve(new Blob([this._bodyText]))
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}
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};
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this.arrayBuffer = function() {
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if (this._bodyArrayBuffer) {
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return consumed(this) || Promise.resolve(this._bodyArrayBuffer)
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} else {
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return this.blob().then(readBlobAsArrayBuffer)
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}
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};
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}
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this.text = function() {
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var rejected = consumed(this);
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if (rejected) {
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return rejected
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}
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if (this._bodyBlob) {
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return readBlobAsText(this._bodyBlob)
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} else if (this._bodyArrayBuffer) {
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return Promise.resolve(readArrayBufferAsText(this._bodyArrayBuffer))
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} else if (this._bodyFormData) {
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throw new Error('could not read FormData body as text')
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} else {
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return Promise.resolve(this._bodyText)
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}
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};
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if (support.formData) {
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this.formData = function() {
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return this.text().then(decode)
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};
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}
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this.json = function() {
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return this.text().then(JSON.parse)
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};
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return this
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}
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// HTTP methods whose capitalization should be normalized
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var methods = ['DELETE', 'GET', 'HEAD', 'OPTIONS', 'POST', 'PUT'];
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function normalizeMethod(method) {
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var upcased = method.toUpperCase();
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return methods.indexOf(upcased) > -1 ? upcased : method
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}
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function Request(input, options) {
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options = options || {};
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var body = options.body;
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if (input instanceof Request) {
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if (input.bodyUsed) {
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throw new TypeError('Already read')
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}
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this.url = input.url;
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this.credentials = input.credentials;
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if (!options.headers) {
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this.headers = new Headers(input.headers);
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}
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this.method = input.method;
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this.mode = input.mode;
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this.signal = input.signal;
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if (!body && input._bodyInit != null) {
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body = input._bodyInit;
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input.bodyUsed = true;
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}
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} else {
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this.url = String(input);
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}
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this.credentials = options.credentials || this.credentials || 'same-origin';
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if (options.headers || !this.headers) {
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this.headers = new Headers(options.headers);
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}
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this.method = normalizeMethod(options.method || this.method || 'GET');
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this.mode = options.mode || this.mode || null;
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this.signal = options.signal || this.signal;
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this.referrer = null;
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if ((this.method === 'GET' || this.method === 'HEAD') && body) {
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throw new TypeError('Body not allowed for GET or HEAD requests')
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}
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this._initBody(body);
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}
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Request.prototype.clone = function() {
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return new Request(this, {body: this._bodyInit})
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};
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function decode(body) {
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var form = new FormData();
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body
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.trim()
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.split('&')
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.forEach(function(bytes) {
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if (bytes) {
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var split = bytes.split('=');
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var name = split.shift().replace(/\+/g, ' ');
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var value = split.join('=').replace(/\+/g, ' ');
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form.append(decodeURIComponent(name), decodeURIComponent(value));
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}
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});
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return form
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}
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function parseHeaders(rawHeaders) {
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var headers = new Headers();
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// Replace instances of \r\n and \n followed by at least one space or horizontal tab with a space
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// https://tools.ietf.org/html/rfc7230#section-3.2
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var preProcessedHeaders = rawHeaders.replace(/\r?\n[\t ]+/g, ' ');
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preProcessedHeaders.split(/\r?\n/).forEach(function(line) {
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var parts = line.split(':');
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var key = parts.shift().trim();
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if (key) {
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var value = parts.join(':').trim();
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headers.append(key, value);
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}
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});
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return headers
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}
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Body.call(Request.prototype);
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function Response(bodyInit, options) {
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if (!options) {
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options = {};
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}
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this.type = 'default';
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this.status = options.status === undefined ? 200 : options.status;
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this.ok = this.status >= 200 && this.status < 300;
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this.statusText = 'statusText' in options ? options.statusText : 'OK';
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this.headers = new Headers(options.headers);
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this.url = options.url || '';
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this._initBody(bodyInit);
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}
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Body.call(Response.prototype);
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Response.prototype.clone = function() {
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return new Response(this._bodyInit, {
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status: this.status,
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statusText: this.statusText,
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headers: new Headers(this.headers),
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url: this.url
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})
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};
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Response.error = function() {
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var response = new Response(null, {status: 0, statusText: ''});
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response.type = 'error';
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return response
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};
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var redirectStatuses = [301, 302, 303, 307, 308];
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Response.redirect = function(url, status) {
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if (redirectStatuses.indexOf(status) === -1) {
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throw new RangeError('Invalid status code')
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}
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return new Response(null, {status: status, headers: {location: url}})
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};
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exports.DOMException = self.DOMException;
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try {
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new exports.DOMException();
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} catch (err) {
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exports.DOMException = function(message, name) {
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this.message = message;
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this.name = name;
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var error = Error(message);
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this.stack = error.stack;
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};
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exports.DOMException.prototype = Object.create(Error.prototype);
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exports.DOMException.prototype.constructor = exports.DOMException;
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}
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function fetch(input, init) {
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return new Promise(function(resolve, reject) {
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var request = new Request(input, init);
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if (request.signal && request.signal.aborted) {
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return reject(new exports.DOMException('Aborted', 'AbortError'))
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}
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var xhr = new XMLHttpRequest();
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function abortXhr() {
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xhr.abort();
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}
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xhr.onload = function() {
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var options = {
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status: xhr.status,
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statusText: xhr.statusText,
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headers: parseHeaders(xhr.getAllResponseHeaders() || '')
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};
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options.url = 'responseURL' in xhr ? xhr.responseURL : options.headers.get('X-Request-URL');
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var body = 'response' in xhr ? xhr.response : xhr.responseText;
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resolve(new Response(body, options));
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};
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xhr.onerror = function() {
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reject(new TypeError('Network request failed'));
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};
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xhr.ontimeout = function() {
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reject(new TypeError('Network request failed'));
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};
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xhr.onabort = function() {
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reject(new exports.DOMException('Aborted', 'AbortError'));
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};
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xhr.open(request.method, request.url, true);
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if (request.credentials === 'include') {
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xhr.withCredentials = true;
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} else if (request.credentials === 'omit') {
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xhr.withCredentials = false;
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}
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if ('responseType' in xhr && support.blob) {
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xhr.responseType = 'blob';
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}
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request.headers.forEach(function(value, name) {
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xhr.setRequestHeader(name, value);
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});
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if (request.signal) {
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request.signal.addEventListener('abort', abortXhr);
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xhr.onreadystatechange = function() {
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// DONE (success or failure)
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if (xhr.readyState === 4) {
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request.signal.removeEventListener('abort', abortXhr);
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}
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};
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}
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xhr.send(typeof request._bodyInit === 'undefined' ? null : request._bodyInit);
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})
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}
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fetch.polyfill = true;
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if (!self.fetch) {
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self.fetch = fetch;
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self.Headers = Headers;
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self.Request = Request;
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self.Response = Response;
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}
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exports.Headers = Headers;
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exports.Request = Request;
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exports.Response = Response;
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exports.fetch = fetch;
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Object.defineProperty(exports, '__esModule', { value: true });
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})));
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