mirror of
https://github.com/NativeScript/NativeScript.git
synced 2025-08-18 05:18:39 +08:00
621 lines
17 KiB
TypeScript
621 lines
17 KiB
TypeScript
const g: any = (typeof globalThis !== 'undefined' && globalThis) || (typeof self !== 'undefined' && self) || (typeof global !== 'undefined' && global) || {};
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// Feature support detection
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interface Support {
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searchParams: boolean;
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iterable: boolean;
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blob: boolean;
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formData: boolean;
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arrayBuffer: boolean;
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}
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const support: Support = {
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searchParams: 'URLSearchParams' in g,
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iterable: 'Symbol' in g && 'iterator' in Symbol,
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blob:
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'FileReader' in g &&
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'Blob' in g &&
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(() => {
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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 g,
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arrayBuffer: 'ArrayBuffer' in g,
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};
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function isDataView(obj: any): obj is DataView {
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return obj && DataView.prototype.isPrototypeOf(obj);
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}
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let isArrayBufferView: (obj: any) => boolean;
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if (support.arrayBuffer) {
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const viewClasses = ['[object Int8Array]', '[object Uint8Array]', '[object Uint8ClampedArray]', '[object Int16Array]', '[object Uint16Array]', '[object Int32Array]', '[object Uint32Array]', '[object Float32Array]', '[object Float64Array]'];
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isArrayBufferView =
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ArrayBuffer.isView ||
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((obj: any) => {
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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: any): string {
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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) || name === '') {
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throw new TypeError('Invalid character in header field name: "' + name + '"');
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}
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return name.toLowerCase();
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}
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function normalizeValue(value: any): string {
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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: any[]): IterableIterator<any> {
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const iterator: any = {
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next: () => {
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const value = items.shift();
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return { done: value === undefined, value };
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},
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};
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if (support.iterable) {
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(iterator as any)[Symbol.iterator] = () => iterator;
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}
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return iterator;
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}
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export type HeaderInit = Headers | string[][] | Record<string, string>;
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export class Headers {
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private map: Record<string, string> = {};
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constructor(headers?: HeaderInit) {
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if (headers instanceof Headers) {
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headers.forEach((value, name) => {
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this.append(name, value);
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});
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} else if (Array.isArray(headers)) {
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headers.forEach((header) => {
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if (header.length !== 2) {
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throw new TypeError('Headers constructor: expected name/value pair to be length 2, found ' + header.length);
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}
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this.append(header[0], header[1]);
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});
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} else if (headers) {
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Object.getOwnPropertyNames(headers).forEach((name) => {
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this.append(name, (headers as Record<string, string>)[name]);
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});
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}
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}
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append(name: string, value: string): void {
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name = normalizeName(name);
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value = normalizeValue(value);
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const oldValue = this.map[name];
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this.map[name] = oldValue ? oldValue + ', ' + value : value;
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}
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delete(name: string): void {
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delete this.map[normalizeName(name)];
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}
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get(name: string): string | null {
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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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has(name: string): boolean {
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return Object.prototype.hasOwnProperty.call(this.map, normalizeName(name));
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}
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set(name: string, value: string): void {
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this.map[normalizeName(name)] = normalizeValue(value);
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}
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forEach(callback: (value: string, name: string, headers: Headers) => void, thisArg?: any): void {
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for (const name in this.map) {
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if (Object.prototype.hasOwnProperty.call(this.map, 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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keys(): IterableIterator<string> {
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const items: string[] = [];
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this.forEach((_, name) => items.push(name));
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return iteratorFor(items);
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}
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values(): IterableIterator<string> {
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const items: string[] = [];
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this.forEach((value) => items.push(value));
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return iteratorFor(items);
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}
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entries(): IterableIterator<[string, string]> {
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const items: [string, string][] = [];
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this.forEach((value, name) => items.push([name, value]));
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return iteratorFor(items);
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}
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[Symbol.iterator](): IterableIterator<[string, string]> {
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return this.entries();
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}
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}
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// Body mixin
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export class Body {
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bodyUsed = false;
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_bodyInit: any;
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protected _bodyText?: string;
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protected _bodyBlob?: Blob;
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protected _bodyFormData?: FormData;
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protected _bodyArrayBuffer?: ArrayBuffer;
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protected _noBody?: boolean;
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protected headers!: Headers;
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protected _initBody(body: any): void {
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// Ensure bodyUsed property exists
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this.bodyUsed = this.bodyUsed;
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this._bodyInit = body;
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if (!body) {
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this._noBody = true;
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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 as Blob;
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} else if (support.formData && FormData.prototype.isPrototypeOf(body)) {
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this._bodyFormData = body as FormData;
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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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// @ts-ignore
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this._bodyArrayBuffer = bufferClone((body as DataView).buffer);
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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 as ArrayBuffer);
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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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// Set Content-Type header if not set
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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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blob?(): Promise<Blob> {
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const rejected = consumed(this);
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if (rejected) {
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return rejected as Promise<any>;
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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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arrayBuffer(): Promise<ArrayBuffer> {
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if (this._bodyArrayBuffer) {
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const consumedResult = consumed(this);
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if (consumedResult) {
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return consumedResult as Promise<any>;
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} else if (ArrayBuffer.isView(this._bodyArrayBuffer)) {
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return Promise.resolve((this._bodyArrayBuffer as any).buffer.slice((this._bodyArrayBuffer as any).byteOffset, (this._bodyArrayBuffer as any).byteOffset + (this._bodyArrayBuffer as any).byteLength));
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} else {
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return Promise.resolve(this._bodyArrayBuffer);
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}
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} else if (support.blob) {
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// @ts-ignore
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return this.blob!().then(readBlobAsArrayBuffer);
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} else {
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throw new Error('could not read as ArrayBuffer');
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}
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}
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text(): Promise<string> {
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const rejected = consumed(this);
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if (rejected) {
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return rejected as Promise<any>;
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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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formData?(): Promise<FormData> {
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return this.text().then(decode);
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}
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json(): Promise<any> {
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return this.text().then(JSON.parse);
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}
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}
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// Helper functions for Body
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function consumed(body: any): Promise<any> | undefined {
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if (body._noBody) return;
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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: FileReader): Promise<any> {
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return new Promise((resolve, reject) => {
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reader.onload = () => resolve(reader.result);
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reader.onerror = () => reject(reader.error);
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});
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}
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function readBlobAsArrayBuffer(blob: Blob): Promise<ArrayBuffer | string | null> {
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const reader = new FileReader();
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const 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: Blob): Promise<string | null> {
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const reader = new FileReader();
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const promise = fileReaderReady(reader);
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const match = /charset=([A-Za-z0-9_-]+)/.exec(blob.type);
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const encoding = match ? match[1] : 'utf-8';
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reader.readAsText(blob, encoding);
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return promise;
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}
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function readArrayBufferAsText(buf: ArrayBuffer): string {
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const view = new Uint8Array(buf);
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const chars = new Array(view.length);
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for (let 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: ArrayBuffer): ArrayBuffer {
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if (buf.slice) {
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return buf.slice(0);
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} else {
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const 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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// HTTP methods whose capitalization should be normalized
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const methods = ['CONNECT', 'DELETE', 'GET', 'HEAD', 'OPTIONS', 'PATCH', 'POST', 'PUT', 'TRACE'];
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function normalizeMethod(method: string): string {
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const upcased = method.toUpperCase();
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return methods.indexOf(upcased) > -1 ? upcased : method;
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}
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// Request class
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export type RequestInfo = string | Request;
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export interface RequestInit {
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method?: string;
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headers?: HeaderInit;
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body?: any;
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mode?: string | null;
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credentials?: RequestCredentials;
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cache?: 'default' | 'no-store' | 'reload' | 'no-cache' | 'force-cache' | 'only-if-cached';
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signal?: AbortSignal;
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}
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export class Request extends Body {
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url: string;
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credentials: RequestCredentials;
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headers: Headers;
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method: string;
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mode: string | null;
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signal?: AbortSignal;
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referrer: string | null;
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constructor(input: RequestInfo, options: RequestInit = {}) {
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super();
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let 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 || ('AbortController' in g ? new AbortController().signal : undefined);
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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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if (this.method === 'GET' || this.method === 'HEAD') {
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if (options.cache === 'no-store' || options.cache === 'no-cache') {
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const reParamSearch = /([?&])_=[^&]*/;
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if (reParamSearch.test(this.url)) {
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this.url = this.url.replace(reParamSearch, '$1_=' + new Date().getTime());
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} else {
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const reQueryString = /\?/;
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this.url += (reQueryString.test(this.url) ? '&' : '?') + '_=' + new Date().getTime();
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}
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}
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}
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}
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clone(): Request {
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return new Request(this, { body: this._bodyInit });
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}
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}
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// Decode URL-encoded form data
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function decode(body: string): FormData {
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const form = new FormData();
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body
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.trim()
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.split('&')
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.forEach((bytes) => {
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if (bytes) {
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const split = bytes.split('=');
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const name = split.shift()!.replace(/\+/g, ' ');
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const 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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// Parse raw headers string into Headers
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function parseHeaders(rawHeaders: string): Headers {
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const headers = new Headers();
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const preProcessed = rawHeaders.replace(/\r?\n[\t ]+/g, ' ');
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preProcessed
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.split('\r')
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.map((header) => (header.indexOf('\n') === 0 ? header.substr(1) : header))
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.forEach((line) => {
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const parts = line.split(':');
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const key = parts.shift()!.trim();
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if (key) {
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const value = parts.join(':').trim();
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try {
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headers.append(key, value);
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} catch (err) {
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console.warn('Response ' + (err as Error).message);
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}
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}
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});
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return headers;
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}
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// Response class
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export interface ResponseInit {
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status?: number;
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statusText?: string;
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headers?: HeaderInit;
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url?: string;
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}
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const redirectStatuses = [301, 302, 303, 307, 308];
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export class Response extends Body {
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type: string;
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status: number;
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ok: boolean;
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statusText: string;
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headers: Headers;
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url: string;
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constructor(bodyInit: any, options: ResponseInit = {}) {
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super();
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this.type = 'default';
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this.status = options.status === undefined ? 200 : options.status!;
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if (this.status < 200 || this.status > 599) {
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throw new RangeError(`Failed to construct 'Response': The status provided (${this.status}) is outside the range [200, 599].`);
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}
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this.ok = this.status >= 200 && this.status < 300;
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this.statusText = options.statusText === undefined ? '' : String(options.statusText);
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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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clone(): Response {
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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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static error(): Response {
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const response = new Response(null, { status: 200, statusText: '' });
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response.ok = false;
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response.status = 0;
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response.type = 'error';
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return response;
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}
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static redirect(url: string, status: number): Response {
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if (!redirectStatuses.includes(status)) {
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throw new RangeError('Invalid status code');
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}
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return new Response(null, { status, headers: { location: url } });
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}
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}
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// DOMException polyfill
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export let DOMException: any = g.DOMException;
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try {
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new (g.DOMException as any)();
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} catch (err) {
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DOMException = class {
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message: string;
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name: string;
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stack?: string;
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constructor(message: string, name: string) {
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this.message = message;
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this.name = name;
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const error = new Error(message);
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this.stack = error.stack;
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}
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};
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}
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// fetch function
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export function fetch(input: RequestInfo, init?: RequestInit): Promise<Response> {
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return new Promise((resolve, reject) => {
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const request = new Request(input, init as any);
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if (request.signal && (request.signal as any).aborted) {
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return reject(new DOMException('Aborted', 'AbortError'));
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}
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const 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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const options: any = {
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|
statusText: xhr.statusText,
|
|
headers: parseHeaders(xhr.getAllResponseHeaders() || ''),
|
|
};
|
|
// Local file handling
|
|
if (request.url.startsWith('file://') && (xhr.status < 200 || xhr.status > 599)) {
|
|
options.status = 200;
|
|
} else {
|
|
options.status = xhr.status;
|
|
}
|
|
options.url = 'responseURL' in xhr ? xhr.responseURL : options.headers.get('X-Request-URL');
|
|
// @ts-ignore
|
|
const body = 'response' in xhr ? xhr.response : xhr.responseText;
|
|
setTimeout(() => resolve(new Response(body, options)), 0);
|
|
};
|
|
|
|
xhr.onerror = function () {
|
|
setTimeout(() => reject(new TypeError('Network request failed')), 0);
|
|
};
|
|
|
|
xhr.ontimeout = function () {
|
|
setTimeout(() => reject(new TypeError('Network request timed out')), 0);
|
|
};
|
|
|
|
xhr.onabort = function () {
|
|
setTimeout(() => reject(new DOMException('Aborted', 'AbortError')), 0);
|
|
};
|
|
|
|
function fixUrl(url: string): string {
|
|
try {
|
|
return url === '' && g.location.href ? g.location.href : url;
|
|
} catch (e) {
|
|
return url;
|
|
}
|
|
}
|
|
|
|
xhr.open(request.method, fixUrl(request.url), true);
|
|
|
|
if (request.credentials === 'include') {
|
|
xhr.withCredentials = true;
|
|
} else if (request.credentials === 'omit') {
|
|
xhr.withCredentials = false;
|
|
}
|
|
|
|
if ('responseType' in xhr) {
|
|
if (support.blob) {
|
|
(xhr as any).responseType = 'blob';
|
|
} else if (support.arrayBuffer) {
|
|
(xhr as any).responseType = 'arraybuffer';
|
|
}
|
|
}
|
|
|
|
if (init && typeof init.headers === 'object' && !(init.headers instanceof Headers) && !(g.Headers && init.headers instanceof g.Headers)) {
|
|
const names: string[] = [];
|
|
Object.getOwnPropertyNames(init.headers).forEach((name) => {
|
|
names.push(normalizeName(name));
|
|
xhr.setRequestHeader(name, normalizeValue((init.headers as any)[name]));
|
|
});
|
|
request.headers.forEach((value, name) => {
|
|
if (!names.includes(name)) {
|
|
xhr.setRequestHeader(name, value);
|
|
}
|
|
});
|
|
} else {
|
|
request.headers.forEach((value, name) => xhr.setRequestHeader(name, value));
|
|
}
|
|
|
|
if (request.signal) {
|
|
request.signal.addEventListener('abort', abortXhr);
|
|
xhr.onreadystatechange = function () {
|
|
if (xhr.readyState === 4) {
|
|
(request.signal as any).removeEventListener('abort', abortXhr);
|
|
}
|
|
};
|
|
}
|
|
|
|
xhr.send(typeof request._bodyInit === 'undefined' ? null : request._bodyInit);
|
|
});
|
|
}
|
|
|
|
// Attach polyfill to globals
|
|
(fetch as any).polyfill = true;
|
|
if (!g.fetch) {
|
|
g.fetch = fetch;
|
|
g.Headers = Headers;
|
|
g.Request = Request;
|
|
g.Response = Response;
|
|
}
|