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2234 lines
84 KiB
2234 lines
84 KiB
/**
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* @license Angular v12.2.15
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* (c) 2010-2021 Google LLC. https://angular.io/
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* License: MIT
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*/
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import { DOCUMENT, XhrFactory as XhrFactory$1, ɵparseCookieValue } from '@angular/common';
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import { Injectable, InjectionToken, Inject, PLATFORM_ID, Injector, NgModule } from '@angular/core';
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import { of, Observable } from 'rxjs';
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import { concatMap, filter, map } from 'rxjs/operators';
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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/**
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* Transforms an `HttpRequest` into a stream of `HttpEvent`s, one of which will likely be a
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* `HttpResponse`.
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*
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* `HttpHandler` is injectable. When injected, the handler instance dispatches requests to the
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* first interceptor in the chain, which dispatches to the second, etc, eventually reaching the
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* `HttpBackend`.
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*
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* In an `HttpInterceptor`, the `HttpHandler` parameter is the next interceptor in the chain.
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*
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* @publicApi
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*/
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class HttpHandler {
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}
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/**
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* A final `HttpHandler` which will dispatch the request via browser HTTP APIs to a backend.
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*
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* Interceptors sit between the `HttpClient` interface and the `HttpBackend`.
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*
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* When injected, `HttpBackend` dispatches requests directly to the backend, without going
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* through the interceptor chain.
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*
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* @publicApi
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*/
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class HttpBackend {
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}
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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/**
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* Represents the header configuration options for an HTTP request.
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* Instances are immutable. Modifying methods return a cloned
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* instance with the change. The original object is never changed.
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*
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* @publicApi
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*/
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class HttpHeaders {
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/** Constructs a new HTTP header object with the given values.*/
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constructor(headers) {
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/**
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* Internal map of lowercased header names to the normalized
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* form of the name (the form seen first).
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*/
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this.normalizedNames = new Map();
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/**
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* Queued updates to be materialized the next initialization.
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*/
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this.lazyUpdate = null;
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if (!headers) {
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this.headers = new Map();
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}
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else if (typeof headers === 'string') {
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this.lazyInit = () => {
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this.headers = new Map();
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headers.split('\n').forEach(line => {
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const index = line.indexOf(':');
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if (index > 0) {
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const name = line.slice(0, index);
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const key = name.toLowerCase();
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const value = line.slice(index + 1).trim();
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this.maybeSetNormalizedName(name, key);
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if (this.headers.has(key)) {
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this.headers.get(key).push(value);
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}
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else {
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this.headers.set(key, [value]);
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}
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}
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});
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};
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}
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else {
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this.lazyInit = () => {
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this.headers = new Map();
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Object.keys(headers).forEach(name => {
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let values = headers[name];
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const key = name.toLowerCase();
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if (typeof values === 'string') {
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values = [values];
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}
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if (values.length > 0) {
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this.headers.set(key, values);
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this.maybeSetNormalizedName(name, key);
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}
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});
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};
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}
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}
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/**
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* Checks for existence of a given header.
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*
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* @param name The header name to check for existence.
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*
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* @returns True if the header exists, false otherwise.
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*/
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has(name) {
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this.init();
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return this.headers.has(name.toLowerCase());
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}
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/**
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* Retrieves the first value of a given header.
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*
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* @param name The header name.
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*
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* @returns The value string if the header exists, null otherwise
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*/
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get(name) {
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this.init();
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const values = this.headers.get(name.toLowerCase());
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return values && values.length > 0 ? values[0] : null;
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}
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/**
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* Retrieves the names of the headers.
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*
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* @returns A list of header names.
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*/
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keys() {
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this.init();
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return Array.from(this.normalizedNames.values());
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}
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/**
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* Retrieves a list of values for a given header.
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*
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* @param name The header name from which to retrieve values.
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*
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* @returns A string of values if the header exists, null otherwise.
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*/
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getAll(name) {
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this.init();
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return this.headers.get(name.toLowerCase()) || null;
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}
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/**
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* Appends a new value to the existing set of values for a header
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* and returns them in a clone of the original instance.
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*
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* @param name The header name for which to append the values.
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* @param value The value to append.
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*
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* @returns A clone of the HTTP headers object with the value appended to the given header.
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*/
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append(name, value) {
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return this.clone({ name, value, op: 'a' });
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}
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/**
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* Sets or modifies a value for a given header in a clone of the original instance.
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* If the header already exists, its value is replaced with the given value
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* in the returned object.
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*
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* @param name The header name.
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* @param value The value or values to set or overide for the given header.
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*
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* @returns A clone of the HTTP headers object with the newly set header value.
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*/
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set(name, value) {
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return this.clone({ name, value, op: 's' });
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}
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/**
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* Deletes values for a given header in a clone of the original instance.
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*
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* @param name The header name.
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* @param value The value or values to delete for the given header.
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*
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* @returns A clone of the HTTP headers object with the given value deleted.
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*/
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delete(name, value) {
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return this.clone({ name, value, op: 'd' });
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}
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maybeSetNormalizedName(name, lcName) {
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if (!this.normalizedNames.has(lcName)) {
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this.normalizedNames.set(lcName, name);
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}
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}
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init() {
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if (!!this.lazyInit) {
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if (this.lazyInit instanceof HttpHeaders) {
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this.copyFrom(this.lazyInit);
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}
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else {
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this.lazyInit();
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}
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this.lazyInit = null;
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if (!!this.lazyUpdate) {
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this.lazyUpdate.forEach(update => this.applyUpdate(update));
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this.lazyUpdate = null;
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}
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}
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}
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copyFrom(other) {
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other.init();
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Array.from(other.headers.keys()).forEach(key => {
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this.headers.set(key, other.headers.get(key));
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this.normalizedNames.set(key, other.normalizedNames.get(key));
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});
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}
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clone(update) {
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const clone = new HttpHeaders();
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clone.lazyInit =
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(!!this.lazyInit && this.lazyInit instanceof HttpHeaders) ? this.lazyInit : this;
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clone.lazyUpdate = (this.lazyUpdate || []).concat([update]);
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return clone;
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}
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applyUpdate(update) {
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const key = update.name.toLowerCase();
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switch (update.op) {
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case 'a':
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case 's':
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let value = update.value;
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if (typeof value === 'string') {
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value = [value];
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}
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if (value.length === 0) {
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return;
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}
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this.maybeSetNormalizedName(update.name, key);
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const base = (update.op === 'a' ? this.headers.get(key) : undefined) || [];
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base.push(...value);
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this.headers.set(key, base);
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break;
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case 'd':
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const toDelete = update.value;
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if (!toDelete) {
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this.headers.delete(key);
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this.normalizedNames.delete(key);
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}
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else {
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let existing = this.headers.get(key);
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if (!existing) {
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return;
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}
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existing = existing.filter(value => toDelete.indexOf(value) === -1);
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if (existing.length === 0) {
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this.headers.delete(key);
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this.normalizedNames.delete(key);
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}
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else {
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this.headers.set(key, existing);
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}
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}
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break;
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}
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}
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/**
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* @internal
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*/
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forEach(fn) {
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this.init();
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Array.from(this.normalizedNames.keys())
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.forEach(key => fn(this.normalizedNames.get(key), this.headers.get(key)));
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}
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}
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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/**
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* Provides encoding and decoding of URL parameter and query-string values.
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*
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* Serializes and parses URL parameter keys and values to encode and decode them.
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* If you pass URL query parameters without encoding,
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* the query parameters can be misinterpreted at the receiving end.
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*
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*
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* @publicApi
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*/
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class HttpUrlEncodingCodec {
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/**
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* Encodes a key name for a URL parameter or query-string.
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* @param key The key name.
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* @returns The encoded key name.
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*/
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encodeKey(key) {
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return standardEncoding(key);
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}
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/**
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* Encodes the value of a URL parameter or query-string.
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* @param value The value.
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* @returns The encoded value.
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*/
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encodeValue(value) {
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return standardEncoding(value);
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}
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/**
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* Decodes an encoded URL parameter or query-string key.
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* @param key The encoded key name.
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* @returns The decoded key name.
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*/
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decodeKey(key) {
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return decodeURIComponent(key);
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}
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/**
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* Decodes an encoded URL parameter or query-string value.
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* @param value The encoded value.
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* @returns The decoded value.
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*/
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decodeValue(value) {
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return decodeURIComponent(value);
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}
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}
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function paramParser(rawParams, codec) {
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const map = new Map();
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if (rawParams.length > 0) {
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// The `window.location.search` can be used while creating an instance of the `HttpParams` class
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// (e.g. `new HttpParams({ fromString: window.location.search })`). The `window.location.search`
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// may start with the `?` char, so we strip it if it's present.
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const params = rawParams.replace(/^\?/, '').split('&');
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params.forEach((param) => {
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const eqIdx = param.indexOf('=');
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const [key, val] = eqIdx == -1 ?
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[codec.decodeKey(param), ''] :
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[codec.decodeKey(param.slice(0, eqIdx)), codec.decodeValue(param.slice(eqIdx + 1))];
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const list = map.get(key) || [];
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list.push(val);
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map.set(key, list);
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});
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}
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return map;
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}
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/**
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* Encode input string with standard encodeURIComponent and then un-encode specific characters.
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*/
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const STANDARD_ENCODING_REGEX = /%(\d[a-f0-9])/gi;
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const STANDARD_ENCODING_REPLACEMENTS = {
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'40': '@',
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'3A': ':',
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'24': '$',
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'2C': ',',
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'3B': ';',
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'2B': '+',
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'3D': '=',
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'3F': '?',
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'2F': '/',
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};
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function standardEncoding(v) {
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return encodeURIComponent(v).replace(STANDARD_ENCODING_REGEX, (s, t) => { var _a; return (_a = STANDARD_ENCODING_REPLACEMENTS[t]) !== null && _a !== void 0 ? _a : s; });
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}
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function valueToString(value) {
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return `${value}`;
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}
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/**
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* An HTTP request/response body that represents serialized parameters,
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* per the MIME type `application/x-www-form-urlencoded`.
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*
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* This class is immutable; all mutation operations return a new instance.
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*
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* @publicApi
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*/
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class HttpParams {
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constructor(options = {}) {
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this.updates = null;
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this.cloneFrom = null;
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this.encoder = options.encoder || new HttpUrlEncodingCodec();
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if (!!options.fromString) {
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if (!!options.fromObject) {
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throw new Error(`Cannot specify both fromString and fromObject.`);
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}
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this.map = paramParser(options.fromString, this.encoder);
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}
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else if (!!options.fromObject) {
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this.map = new Map();
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Object.keys(options.fromObject).forEach(key => {
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const value = options.fromObject[key];
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this.map.set(key, Array.isArray(value) ? value : [value]);
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});
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}
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else {
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this.map = null;
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}
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}
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/**
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* Reports whether the body includes one or more values for a given parameter.
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* @param param The parameter name.
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* @returns True if the parameter has one or more values,
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* false if it has no value or is not present.
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*/
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has(param) {
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this.init();
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return this.map.has(param);
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}
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/**
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* Retrieves the first value for a parameter.
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* @param param The parameter name.
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* @returns The first value of the given parameter,
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* or `null` if the parameter is not present.
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*/
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get(param) {
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this.init();
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const res = this.map.get(param);
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return !!res ? res[0] : null;
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}
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|
/**
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* Retrieves all values for a parameter.
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* @param param The parameter name.
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* @returns All values in a string array,
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* or `null` if the parameter not present.
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*/
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getAll(param) {
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this.init();
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return this.map.get(param) || null;
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}
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|
/**
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* Retrieves all the parameters for this body.
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* @returns The parameter names in a string array.
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*/
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keys() {
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this.init();
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return Array.from(this.map.keys());
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}
|
|
/**
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* Appends a new value to existing values for a parameter.
|
|
* @param param The parameter name.
|
|
* @param value The new value to add.
|
|
* @return A new body with the appended value.
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|
*/
|
|
append(param, value) {
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return this.clone({ param, value, op: 'a' });
|
|
}
|
|
/**
|
|
* Constructs a new body with appended values for the given parameter name.
|
|
* @param params parameters and values
|
|
* @return A new body with the new value.
|
|
*/
|
|
appendAll(params) {
|
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const updates = [];
|
|
Object.keys(params).forEach(param => {
|
|
const value = params[param];
|
|
if (Array.isArray(value)) {
|
|
value.forEach(_value => {
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updates.push({ param, value: _value, op: 'a' });
|
|
});
|
|
}
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else {
|
|
updates.push({ param, value: value, op: 'a' });
|
|
}
|
|
});
|
|
return this.clone(updates);
|
|
}
|
|
/**
|
|
* Replaces the value for a parameter.
|
|
* @param param The parameter name.
|
|
* @param value The new value.
|
|
* @return A new body with the new value.
|
|
*/
|
|
set(param, value) {
|
|
return this.clone({ param, value, op: 's' });
|
|
}
|
|
/**
|
|
* Removes a given value or all values from a parameter.
|
|
* @param param The parameter name.
|
|
* @param value The value to remove, if provided.
|
|
* @return A new body with the given value removed, or with all values
|
|
* removed if no value is specified.
|
|
*/
|
|
delete(param, value) {
|
|
return this.clone({ param, value, op: 'd' });
|
|
}
|
|
/**
|
|
* Serializes the body to an encoded string, where key-value pairs (separated by `=`) are
|
|
* separated by `&`s.
|
|
*/
|
|
toString() {
|
|
this.init();
|
|
return this.keys()
|
|
.map(key => {
|
|
const eKey = this.encoder.encodeKey(key);
|
|
// `a: ['1']` produces `'a=1'`
|
|
// `b: []` produces `''`
|
|
// `c: ['1', '2']` produces `'c=1&c=2'`
|
|
return this.map.get(key).map(value => eKey + '=' + this.encoder.encodeValue(value))
|
|
.join('&');
|
|
})
|
|
// filter out empty values because `b: []` produces `''`
|
|
// which results in `a=1&&c=1&c=2` instead of `a=1&c=1&c=2` if we don't
|
|
.filter(param => param !== '')
|
|
.join('&');
|
|
}
|
|
clone(update) {
|
|
const clone = new HttpParams({ encoder: this.encoder });
|
|
clone.cloneFrom = this.cloneFrom || this;
|
|
clone.updates = (this.updates || []).concat(update);
|
|
return clone;
|
|
}
|
|
init() {
|
|
if (this.map === null) {
|
|
this.map = new Map();
|
|
}
|
|
if (this.cloneFrom !== null) {
|
|
this.cloneFrom.init();
|
|
this.cloneFrom.keys().forEach(key => this.map.set(key, this.cloneFrom.map.get(key)));
|
|
this.updates.forEach(update => {
|
|
switch (update.op) {
|
|
case 'a':
|
|
case 's':
|
|
const base = (update.op === 'a' ? this.map.get(update.param) : undefined) || [];
|
|
base.push(valueToString(update.value));
|
|
this.map.set(update.param, base);
|
|
break;
|
|
case 'd':
|
|
if (update.value !== undefined) {
|
|
let base = this.map.get(update.param) || [];
|
|
const idx = base.indexOf(valueToString(update.value));
|
|
if (idx !== -1) {
|
|
base.splice(idx, 1);
|
|
}
|
|
if (base.length > 0) {
|
|
this.map.set(update.param, base);
|
|
}
|
|
else {
|
|
this.map.delete(update.param);
|
|
}
|
|
}
|
|
else {
|
|
this.map.delete(update.param);
|
|
break;
|
|
}
|
|
}
|
|
});
|
|
this.cloneFrom = this.updates = null;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
/**
|
|
* A token used to manipulate and access values stored in `HttpContext`.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpContextToken {
|
|
constructor(defaultValue) {
|
|
this.defaultValue = defaultValue;
|
|
}
|
|
}
|
|
/**
|
|
* Http context stores arbitrary user defined values and ensures type safety without
|
|
* actually knowing the types. It is backed by a `Map` and guarantees that keys do not clash.
|
|
*
|
|
* This context is mutable and is shared between cloned requests unless explicitly specified.
|
|
*
|
|
* @usageNotes
|
|
*
|
|
* ### Usage Example
|
|
*
|
|
* ```typescript
|
|
* // inside cache.interceptors.ts
|
|
* export const IS_CACHE_ENABLED = new HttpContextToken<boolean>(() => false);
|
|
*
|
|
* export class CacheInterceptor implements HttpInterceptor {
|
|
*
|
|
* intercept(req: HttpRequest<any>, delegate: HttpHandler): Observable<HttpEvent<any>> {
|
|
* if (req.context.get(IS_CACHE_ENABLED) === true) {
|
|
* return ...;
|
|
* }
|
|
* return delegate.handle(req);
|
|
* }
|
|
* }
|
|
*
|
|
* // inside a service
|
|
*
|
|
* this.httpClient.get('/api/weather', {
|
|
* context: new HttpContext().set(IS_CACHE_ENABLED, true)
|
|
* }).subscribe(...);
|
|
* ```
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpContext {
|
|
constructor() {
|
|
this.map = new Map();
|
|
}
|
|
/**
|
|
* Store a value in the context. If a value is already present it will be overwritten.
|
|
*
|
|
* @param token The reference to an instance of `HttpContextToken`.
|
|
* @param value The value to store.
|
|
*
|
|
* @returns A reference to itself for easy chaining.
|
|
*/
|
|
set(token, value) {
|
|
this.map.set(token, value);
|
|
return this;
|
|
}
|
|
/**
|
|
* Retrieve the value associated with the given token.
|
|
*
|
|
* @param token The reference to an instance of `HttpContextToken`.
|
|
*
|
|
* @returns The stored value or default if one is defined.
|
|
*/
|
|
get(token) {
|
|
if (!this.map.has(token)) {
|
|
this.map.set(token, token.defaultValue());
|
|
}
|
|
return this.map.get(token);
|
|
}
|
|
/**
|
|
* Delete the value associated with the given token.
|
|
*
|
|
* @param token The reference to an instance of `HttpContextToken`.
|
|
*
|
|
* @returns A reference to itself for easy chaining.
|
|
*/
|
|
delete(token) {
|
|
this.map.delete(token);
|
|
return this;
|
|
}
|
|
/**
|
|
* @returns a list of tokens currently stored in the context.
|
|
*/
|
|
keys() {
|
|
return this.map.keys();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
/**
|
|
* Determine whether the given HTTP method may include a body.
|
|
*/
|
|
function mightHaveBody(method) {
|
|
switch (method) {
|
|
case 'DELETE':
|
|
case 'GET':
|
|
case 'HEAD':
|
|
case 'OPTIONS':
|
|
case 'JSONP':
|
|
return false;
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
/**
|
|
* Safely assert whether the given value is an ArrayBuffer.
|
|
*
|
|
* In some execution environments ArrayBuffer is not defined.
|
|
*/
|
|
function isArrayBuffer(value) {
|
|
return typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer;
|
|
}
|
|
/**
|
|
* Safely assert whether the given value is a Blob.
|
|
*
|
|
* In some execution environments Blob is not defined.
|
|
*/
|
|
function isBlob(value) {
|
|
return typeof Blob !== 'undefined' && value instanceof Blob;
|
|
}
|
|
/**
|
|
* Safely assert whether the given value is a FormData instance.
|
|
*
|
|
* In some execution environments FormData is not defined.
|
|
*/
|
|
function isFormData(value) {
|
|
return typeof FormData !== 'undefined' && value instanceof FormData;
|
|
}
|
|
/**
|
|
* Safely assert whether the given value is a URLSearchParams instance.
|
|
*
|
|
* In some execution environments URLSearchParams is not defined.
|
|
*/
|
|
function isUrlSearchParams(value) {
|
|
return typeof URLSearchParams !== 'undefined' && value instanceof URLSearchParams;
|
|
}
|
|
/**
|
|
* An outgoing HTTP request with an optional typed body.
|
|
*
|
|
* `HttpRequest` represents an outgoing request, including URL, method,
|
|
* headers, body, and other request configuration options. Instances should be
|
|
* assumed to be immutable. To modify a `HttpRequest`, the `clone`
|
|
* method should be used.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpRequest {
|
|
constructor(method, url, third, fourth) {
|
|
this.url = url;
|
|
/**
|
|
* The request body, or `null` if one isn't set.
|
|
*
|
|
* Bodies are not enforced to be immutable, as they can include a reference to any
|
|
* user-defined data type. However, interceptors should take care to preserve
|
|
* idempotence by treating them as such.
|
|
*/
|
|
this.body = null;
|
|
/**
|
|
* Whether this request should be made in a way that exposes progress events.
|
|
*
|
|
* Progress events are expensive (change detection runs on each event) and so
|
|
* they should only be requested if the consumer intends to monitor them.
|
|
*/
|
|
this.reportProgress = false;
|
|
/**
|
|
* Whether this request should be sent with outgoing credentials (cookies).
|
|
*/
|
|
this.withCredentials = false;
|
|
/**
|
|
* The expected response type of the server.
|
|
*
|
|
* This is used to parse the response appropriately before returning it to
|
|
* the requestee.
|
|
*/
|
|
this.responseType = 'json';
|
|
this.method = method.toUpperCase();
|
|
// Next, need to figure out which argument holds the HttpRequestInit
|
|
// options, if any.
|
|
let options;
|
|
// Check whether a body argument is expected. The only valid way to omit
|
|
// the body argument is to use a known no-body method like GET.
|
|
if (mightHaveBody(this.method) || !!fourth) {
|
|
// Body is the third argument, options are the fourth.
|
|
this.body = (third !== undefined) ? third : null;
|
|
options = fourth;
|
|
}
|
|
else {
|
|
// No body required, options are the third argument. The body stays null.
|
|
options = third;
|
|
}
|
|
// If options have been passed, interpret them.
|
|
if (options) {
|
|
// Normalize reportProgress and withCredentials.
|
|
this.reportProgress = !!options.reportProgress;
|
|
this.withCredentials = !!options.withCredentials;
|
|
// Override default response type of 'json' if one is provided.
|
|
if (!!options.responseType) {
|
|
this.responseType = options.responseType;
|
|
}
|
|
// Override headers if they're provided.
|
|
if (!!options.headers) {
|
|
this.headers = options.headers;
|
|
}
|
|
if (!!options.context) {
|
|
this.context = options.context;
|
|
}
|
|
if (!!options.params) {
|
|
this.params = options.params;
|
|
}
|
|
}
|
|
// If no headers have been passed in, construct a new HttpHeaders instance.
|
|
if (!this.headers) {
|
|
this.headers = new HttpHeaders();
|
|
}
|
|
// If no context have been passed in, construct a new HttpContext instance.
|
|
if (!this.context) {
|
|
this.context = new HttpContext();
|
|
}
|
|
// If no parameters have been passed in, construct a new HttpUrlEncodedParams instance.
|
|
if (!this.params) {
|
|
this.params = new HttpParams();
|
|
this.urlWithParams = url;
|
|
}
|
|
else {
|
|
// Encode the parameters to a string in preparation for inclusion in the URL.
|
|
const params = this.params.toString();
|
|
if (params.length === 0) {
|
|
// No parameters, the visible URL is just the URL given at creation time.
|
|
this.urlWithParams = url;
|
|
}
|
|
else {
|
|
// Does the URL already have query parameters? Look for '?'.
|
|
const qIdx = url.indexOf('?');
|
|
// There are 3 cases to handle:
|
|
// 1) No existing parameters -> append '?' followed by params.
|
|
// 2) '?' exists and is followed by existing query string ->
|
|
// append '&' followed by params.
|
|
// 3) '?' exists at the end of the url -> append params directly.
|
|
// This basically amounts to determining the character, if any, with
|
|
// which to join the URL and parameters.
|
|
const sep = qIdx === -1 ? '?' : (qIdx < url.length - 1 ? '&' : '');
|
|
this.urlWithParams = url + sep + params;
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Transform the free-form body into a serialized format suitable for
|
|
* transmission to the server.
|
|
*/
|
|
serializeBody() {
|
|
// If no body is present, no need to serialize it.
|
|
if (this.body === null) {
|
|
return null;
|
|
}
|
|
// Check whether the body is already in a serialized form. If so,
|
|
// it can just be returned directly.
|
|
if (isArrayBuffer(this.body) || isBlob(this.body) || isFormData(this.body) ||
|
|
isUrlSearchParams(this.body) || typeof this.body === 'string') {
|
|
return this.body;
|
|
}
|
|
// Check whether the body is an instance of HttpUrlEncodedParams.
|
|
if (this.body instanceof HttpParams) {
|
|
return this.body.toString();
|
|
}
|
|
// Check whether the body is an object or array, and serialize with JSON if so.
|
|
if (typeof this.body === 'object' || typeof this.body === 'boolean' ||
|
|
Array.isArray(this.body)) {
|
|
return JSON.stringify(this.body);
|
|
}
|
|
// Fall back on toString() for everything else.
|
|
return this.body.toString();
|
|
}
|
|
/**
|
|
* Examine the body and attempt to infer an appropriate MIME type
|
|
* for it.
|
|
*
|
|
* If no such type can be inferred, this method will return `null`.
|
|
*/
|
|
detectContentTypeHeader() {
|
|
// An empty body has no content type.
|
|
if (this.body === null) {
|
|
return null;
|
|
}
|
|
// FormData bodies rely on the browser's content type assignment.
|
|
if (isFormData(this.body)) {
|
|
return null;
|
|
}
|
|
// Blobs usually have their own content type. If it doesn't, then
|
|
// no type can be inferred.
|
|
if (isBlob(this.body)) {
|
|
return this.body.type || null;
|
|
}
|
|
// Array buffers have unknown contents and thus no type can be inferred.
|
|
if (isArrayBuffer(this.body)) {
|
|
return null;
|
|
}
|
|
// Technically, strings could be a form of JSON data, but it's safe enough
|
|
// to assume they're plain strings.
|
|
if (typeof this.body === 'string') {
|
|
return 'text/plain';
|
|
}
|
|
// `HttpUrlEncodedParams` has its own content-type.
|
|
if (this.body instanceof HttpParams) {
|
|
return 'application/x-www-form-urlencoded;charset=UTF-8';
|
|
}
|
|
// Arrays, objects, boolean and numbers will be encoded as JSON.
|
|
if (typeof this.body === 'object' || typeof this.body === 'number' ||
|
|
typeof this.body === 'boolean') {
|
|
return 'application/json';
|
|
}
|
|
// No type could be inferred.
|
|
return null;
|
|
}
|
|
clone(update = {}) {
|
|
var _a;
|
|
// For method, url, and responseType, take the current value unless
|
|
// it is overridden in the update hash.
|
|
const method = update.method || this.method;
|
|
const url = update.url || this.url;
|
|
const responseType = update.responseType || this.responseType;
|
|
// The body is somewhat special - a `null` value in update.body means
|
|
// whatever current body is present is being overridden with an empty
|
|
// body, whereas an `undefined` value in update.body implies no
|
|
// override.
|
|
const body = (update.body !== undefined) ? update.body : this.body;
|
|
// Carefully handle the boolean options to differentiate between
|
|
// `false` and `undefined` in the update args.
|
|
const withCredentials = (update.withCredentials !== undefined) ? update.withCredentials : this.withCredentials;
|
|
const reportProgress = (update.reportProgress !== undefined) ? update.reportProgress : this.reportProgress;
|
|
// Headers and params may be appended to if `setHeaders` or
|
|
// `setParams` are used.
|
|
let headers = update.headers || this.headers;
|
|
let params = update.params || this.params;
|
|
// Pass on context if needed
|
|
const context = (_a = update.context) !== null && _a !== void 0 ? _a : this.context;
|
|
// Check whether the caller has asked to add headers.
|
|
if (update.setHeaders !== undefined) {
|
|
// Set every requested header.
|
|
headers =
|
|
Object.keys(update.setHeaders)
|
|
.reduce((headers, name) => headers.set(name, update.setHeaders[name]), headers);
|
|
}
|
|
// Check whether the caller has asked to set params.
|
|
if (update.setParams) {
|
|
// Set every requested param.
|
|
params = Object.keys(update.setParams)
|
|
.reduce((params, param) => params.set(param, update.setParams[param]), params);
|
|
}
|
|
// Finally, construct the new HttpRequest using the pieces from above.
|
|
return new HttpRequest(method, url, body, {
|
|
params,
|
|
headers,
|
|
context,
|
|
reportProgress,
|
|
responseType,
|
|
withCredentials,
|
|
});
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
/**
|
|
* Type enumeration for the different kinds of `HttpEvent`.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
var HttpEventType;
|
|
(function (HttpEventType) {
|
|
/**
|
|
* The request was sent out over the wire.
|
|
*/
|
|
HttpEventType[HttpEventType["Sent"] = 0] = "Sent";
|
|
/**
|
|
* An upload progress event was received.
|
|
*/
|
|
HttpEventType[HttpEventType["UploadProgress"] = 1] = "UploadProgress";
|
|
/**
|
|
* The response status code and headers were received.
|
|
*/
|
|
HttpEventType[HttpEventType["ResponseHeader"] = 2] = "ResponseHeader";
|
|
/**
|
|
* A download progress event was received.
|
|
*/
|
|
HttpEventType[HttpEventType["DownloadProgress"] = 3] = "DownloadProgress";
|
|
/**
|
|
* The full response including the body was received.
|
|
*/
|
|
HttpEventType[HttpEventType["Response"] = 4] = "Response";
|
|
/**
|
|
* A custom event from an interceptor or a backend.
|
|
*/
|
|
HttpEventType[HttpEventType["User"] = 5] = "User";
|
|
})(HttpEventType || (HttpEventType = {}));
|
|
/**
|
|
* Base class for both `HttpResponse` and `HttpHeaderResponse`.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpResponseBase {
|
|
/**
|
|
* Super-constructor for all responses.
|
|
*
|
|
* The single parameter accepted is an initialization hash. Any properties
|
|
* of the response passed there will override the default values.
|
|
*/
|
|
constructor(init, defaultStatus = 200 /* Ok */, defaultStatusText = 'OK') {
|
|
// If the hash has values passed, use them to initialize the response.
|
|
// Otherwise use the default values.
|
|
this.headers = init.headers || new HttpHeaders();
|
|
this.status = init.status !== undefined ? init.status : defaultStatus;
|
|
this.statusText = init.statusText || defaultStatusText;
|
|
this.url = init.url || null;
|
|
// Cache the ok value to avoid defining a getter.
|
|
this.ok = this.status >= 200 && this.status < 300;
|
|
}
|
|
}
|
|
/**
|
|
* A partial HTTP response which only includes the status and header data,
|
|
* but no response body.
|
|
*
|
|
* `HttpHeaderResponse` is a `HttpEvent` available on the response
|
|
* event stream, only when progress events are requested.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpHeaderResponse extends HttpResponseBase {
|
|
/**
|
|
* Create a new `HttpHeaderResponse` with the given parameters.
|
|
*/
|
|
constructor(init = {}) {
|
|
super(init);
|
|
this.type = HttpEventType.ResponseHeader;
|
|
}
|
|
/**
|
|
* Copy this `HttpHeaderResponse`, overriding its contents with the
|
|
* given parameter hash.
|
|
*/
|
|
clone(update = {}) {
|
|
// Perform a straightforward initialization of the new HttpHeaderResponse,
|
|
// overriding the current parameters with new ones if given.
|
|
return new HttpHeaderResponse({
|
|
headers: update.headers || this.headers,
|
|
status: update.status !== undefined ? update.status : this.status,
|
|
statusText: update.statusText || this.statusText,
|
|
url: update.url || this.url || undefined,
|
|
});
|
|
}
|
|
}
|
|
/**
|
|
* A full HTTP response, including a typed response body (which may be `null`
|
|
* if one was not returned).
|
|
*
|
|
* `HttpResponse` is a `HttpEvent` available on the response event
|
|
* stream.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpResponse extends HttpResponseBase {
|
|
/**
|
|
* Construct a new `HttpResponse`.
|
|
*/
|
|
constructor(init = {}) {
|
|
super(init);
|
|
this.type = HttpEventType.Response;
|
|
this.body = init.body !== undefined ? init.body : null;
|
|
}
|
|
clone(update = {}) {
|
|
return new HttpResponse({
|
|
body: (update.body !== undefined) ? update.body : this.body,
|
|
headers: update.headers || this.headers,
|
|
status: (update.status !== undefined) ? update.status : this.status,
|
|
statusText: update.statusText || this.statusText,
|
|
url: update.url || this.url || undefined,
|
|
});
|
|
}
|
|
}
|
|
/**
|
|
* A response that represents an error or failure, either from a
|
|
* non-successful HTTP status, an error while executing the request,
|
|
* or some other failure which occurred during the parsing of the response.
|
|
*
|
|
* Any error returned on the `Observable` response stream will be
|
|
* wrapped in an `HttpErrorResponse` to provide additional context about
|
|
* the state of the HTTP layer when the error occurred. The error property
|
|
* will contain either a wrapped Error object or the error response returned
|
|
* from the server.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpErrorResponse extends HttpResponseBase {
|
|
constructor(init) {
|
|
// Initialize with a default status of 0 / Unknown Error.
|
|
super(init, 0, 'Unknown Error');
|
|
this.name = 'HttpErrorResponse';
|
|
/**
|
|
* Errors are never okay, even when the status code is in the 2xx success range.
|
|
*/
|
|
this.ok = false;
|
|
// If the response was successful, then this was a parse error. Otherwise, it was
|
|
// a protocol-level failure of some sort. Either the request failed in transit
|
|
// or the server returned an unsuccessful status code.
|
|
if (this.status >= 200 && this.status < 300) {
|
|
this.message = `Http failure during parsing for ${init.url || '(unknown url)'}`;
|
|
}
|
|
else {
|
|
this.message = `Http failure response for ${init.url || '(unknown url)'}: ${init.status} ${init.statusText}`;
|
|
}
|
|
this.error = init.error || null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
/**
|
|
* Constructs an instance of `HttpRequestOptions<T>` from a source `HttpMethodOptions` and
|
|
* the given `body`. This function clones the object and adds the body.
|
|
*
|
|
* Note that the `responseType` *options* value is a String that identifies the
|
|
* single data type of the response.
|
|
* A single overload version of the method handles each response type.
|
|
* The value of `responseType` cannot be a union, as the combined signature could imply.
|
|
*
|
|
*/
|
|
function addBody(options, body) {
|
|
return {
|
|
body,
|
|
headers: options.headers,
|
|
context: options.context,
|
|
observe: options.observe,
|
|
params: options.params,
|
|
reportProgress: options.reportProgress,
|
|
responseType: options.responseType,
|
|
withCredentials: options.withCredentials,
|
|
};
|
|
}
|
|
/**
|
|
* Performs HTTP requests.
|
|
* This service is available as an injectable class, with methods to perform HTTP requests.
|
|
* Each request method has multiple signatures, and the return type varies based on
|
|
* the signature that is called (mainly the values of `observe` and `responseType`).
|
|
*
|
|
* Note that the `responseType` *options* value is a String that identifies the
|
|
* single data type of the response.
|
|
* A single overload version of the method handles each response type.
|
|
* The value of `responseType` cannot be a union, as the combined signature could imply.
|
|
|
|
*
|
|
* @usageNotes
|
|
* Sample HTTP requests for the [Tour of Heroes](/tutorial/toh-pt0) application.
|
|
*
|
|
* ### HTTP Request Example
|
|
*
|
|
* ```
|
|
* // GET heroes whose name contains search term
|
|
* searchHeroes(term: string): observable<Hero[]>{
|
|
*
|
|
* const params = new HttpParams({fromString: 'name=term'});
|
|
* return this.httpClient.request('GET', this.heroesUrl, {responseType:'json', params});
|
|
* }
|
|
* ```
|
|
*
|
|
* Alternatively, the parameter string can be used without invoking HttpParams
|
|
* by directly joining to the URL.
|
|
* ```
|
|
* this.httpClient.request('GET', this.heroesUrl + '?' + 'name=term', {responseType:'json'});
|
|
* ```
|
|
*
|
|
*
|
|
* ### JSONP Example
|
|
* ```
|
|
* requestJsonp(url, callback = 'callback') {
|
|
* return this.httpClient.jsonp(this.heroesURL, callback);
|
|
* }
|
|
* ```
|
|
*
|
|
* ### PATCH Example
|
|
* ```
|
|
* // PATCH one of the heroes' name
|
|
* patchHero (id: number, heroName: string): Observable<{}> {
|
|
* const url = `${this.heroesUrl}/${id}`; // PATCH api/heroes/42
|
|
* return this.httpClient.patch(url, {name: heroName}, httpOptions)
|
|
* .pipe(catchError(this.handleError('patchHero')));
|
|
* }
|
|
* ```
|
|
*
|
|
* @see [HTTP Guide](guide/http)
|
|
* @see [HTTP Request](api/common/http/HttpRequest)
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpClient {
|
|
constructor(handler) {
|
|
this.handler = handler;
|
|
}
|
|
/**
|
|
* Constructs an observable for a generic HTTP request that, when subscribed,
|
|
* fires the request through the chain of registered interceptors and on to the
|
|
* server.
|
|
*
|
|
* You can pass an `HttpRequest` directly as the only parameter. In this case,
|
|
* the call returns an observable of the raw `HttpEvent` stream.
|
|
*
|
|
* Alternatively you can pass an HTTP method as the first parameter,
|
|
* a URL string as the second, and an options hash containing the request body as the third.
|
|
* See `addBody()`. In this case, the specified `responseType` and `observe` options determine the
|
|
* type of returned observable.
|
|
* * The `responseType` value determines how a successful response body is parsed.
|
|
* * If `responseType` is the default `json`, you can pass a type interface for the resulting
|
|
* object as a type parameter to the call.
|
|
*
|
|
* The `observe` value determines the return type, according to what you are interested in
|
|
* observing.
|
|
* * An `observe` value of events returns an observable of the raw `HttpEvent` stream, including
|
|
* progress events by default.
|
|
* * An `observe` value of response returns an observable of `HttpResponse<T>`,
|
|
* where the `T` parameter depends on the `responseType` and any optionally provided type
|
|
* parameter.
|
|
* * An `observe` value of body returns an observable of `<T>` with the same `T` body type.
|
|
*
|
|
*/
|
|
request(first, url, options = {}) {
|
|
let req;
|
|
// First, check whether the primary argument is an instance of `HttpRequest`.
|
|
if (first instanceof HttpRequest) {
|
|
// It is. The other arguments must be undefined (per the signatures) and can be
|
|
// ignored.
|
|
req = first;
|
|
}
|
|
else {
|
|
// It's a string, so it represents a URL. Construct a request based on it,
|
|
// and incorporate the remaining arguments (assuming `GET` unless a method is
|
|
// provided.
|
|
// Figure out the headers.
|
|
let headers = undefined;
|
|
if (options.headers instanceof HttpHeaders) {
|
|
headers = options.headers;
|
|
}
|
|
else {
|
|
headers = new HttpHeaders(options.headers);
|
|
}
|
|
// Sort out parameters.
|
|
let params = undefined;
|
|
if (!!options.params) {
|
|
if (options.params instanceof HttpParams) {
|
|
params = options.params;
|
|
}
|
|
else {
|
|
params = new HttpParams({ fromObject: options.params });
|
|
}
|
|
}
|
|
// Construct the request.
|
|
req = new HttpRequest(first, url, (options.body !== undefined ? options.body : null), {
|
|
headers,
|
|
context: options.context,
|
|
params,
|
|
reportProgress: options.reportProgress,
|
|
// By default, JSON is assumed to be returned for all calls.
|
|
responseType: options.responseType || 'json',
|
|
withCredentials: options.withCredentials,
|
|
});
|
|
}
|
|
// Start with an Observable.of() the initial request, and run the handler (which
|
|
// includes all interceptors) inside a concatMap(). This way, the handler runs
|
|
// inside an Observable chain, which causes interceptors to be re-run on every
|
|
// subscription (this also makes retries re-run the handler, including interceptors).
|
|
const events$ = of(req).pipe(concatMap((req) => this.handler.handle(req)));
|
|
// If coming via the API signature which accepts a previously constructed HttpRequest,
|
|
// the only option is to get the event stream. Otherwise, return the event stream if
|
|
// that is what was requested.
|
|
if (first instanceof HttpRequest || options.observe === 'events') {
|
|
return events$;
|
|
}
|
|
// The requested stream contains either the full response or the body. In either
|
|
// case, the first step is to filter the event stream to extract a stream of
|
|
// responses(s).
|
|
const res$ = events$.pipe(filter((event) => event instanceof HttpResponse));
|
|
// Decide which stream to return.
|
|
switch (options.observe || 'body') {
|
|
case 'body':
|
|
// The requested stream is the body. Map the response stream to the response
|
|
// body. This could be done more simply, but a misbehaving interceptor might
|
|
// transform the response body into a different format and ignore the requested
|
|
// responseType. Guard against this by validating that the response is of the
|
|
// requested type.
|
|
switch (req.responseType) {
|
|
case 'arraybuffer':
|
|
return res$.pipe(map((res) => {
|
|
// Validate that the body is an ArrayBuffer.
|
|
if (res.body !== null && !(res.body instanceof ArrayBuffer)) {
|
|
throw new Error('Response is not an ArrayBuffer.');
|
|
}
|
|
return res.body;
|
|
}));
|
|
case 'blob':
|
|
return res$.pipe(map((res) => {
|
|
// Validate that the body is a Blob.
|
|
if (res.body !== null && !(res.body instanceof Blob)) {
|
|
throw new Error('Response is not a Blob.');
|
|
}
|
|
return res.body;
|
|
}));
|
|
case 'text':
|
|
return res$.pipe(map((res) => {
|
|
// Validate that the body is a string.
|
|
if (res.body !== null && typeof res.body !== 'string') {
|
|
throw new Error('Response is not a string.');
|
|
}
|
|
return res.body;
|
|
}));
|
|
case 'json':
|
|
default:
|
|
// No validation needed for JSON responses, as they can be of any type.
|
|
return res$.pipe(map((res) => res.body));
|
|
}
|
|
case 'response':
|
|
// The response stream was requested directly, so return it.
|
|
return res$;
|
|
default:
|
|
// Guard against new future observe types being added.
|
|
throw new Error(`Unreachable: unhandled observe type ${options.observe}}`);
|
|
}
|
|
}
|
|
/**
|
|
* Constructs an observable that, when subscribed, causes the configured
|
|
* `DELETE` request to execute on the server. See the individual overloads for
|
|
* details on the return type.
|
|
*
|
|
* @param url The endpoint URL.
|
|
* @param options The HTTP options to send with the request.
|
|
*
|
|
*/
|
|
delete(url, options = {}) {
|
|
return this.request('DELETE', url, options);
|
|
}
|
|
/**
|
|
* Constructs an observable that, when subscribed, causes the configured
|
|
* `GET` request to execute on the server. See the individual overloads for
|
|
* details on the return type.
|
|
*/
|
|
get(url, options = {}) {
|
|
return this.request('GET', url, options);
|
|
}
|
|
/**
|
|
* Constructs an observable that, when subscribed, causes the configured
|
|
* `HEAD` request to execute on the server. The `HEAD` method returns
|
|
* meta information about the resource without transferring the
|
|
* resource itself. See the individual overloads for
|
|
* details on the return type.
|
|
*/
|
|
head(url, options = {}) {
|
|
return this.request('HEAD', url, options);
|
|
}
|
|
/**
|
|
* Constructs an `Observable` that, when subscribed, causes a request with the special method
|
|
* `JSONP` to be dispatched via the interceptor pipeline.
|
|
* The [JSONP pattern](https://en.wikipedia.org/wiki/JSONP) works around limitations of certain
|
|
* API endpoints that don't support newer,
|
|
* and preferable [CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) protocol.
|
|
* JSONP treats the endpoint API as a JavaScript file and tricks the browser to process the
|
|
* requests even if the API endpoint is not located on the same domain (origin) as the client-side
|
|
* application making the request.
|
|
* The endpoint API must support JSONP callback for JSONP requests to work.
|
|
* The resource API returns the JSON response wrapped in a callback function.
|
|
* You can pass the callback function name as one of the query parameters.
|
|
* Note that JSONP requests can only be used with `GET` requests.
|
|
*
|
|
* @param url The resource URL.
|
|
* @param callbackParam The callback function name.
|
|
*
|
|
*/
|
|
jsonp(url, callbackParam) {
|
|
return this.request('JSONP', url, {
|
|
params: new HttpParams().append(callbackParam, 'JSONP_CALLBACK'),
|
|
observe: 'body',
|
|
responseType: 'json',
|
|
});
|
|
}
|
|
/**
|
|
* Constructs an `Observable` that, when subscribed, causes the configured
|
|
* `OPTIONS` request to execute on the server. This method allows the client
|
|
* to determine the supported HTTP methods and other capabilities of an endpoint,
|
|
* without implying a resource action. See the individual overloads for
|
|
* details on the return type.
|
|
*/
|
|
options(url, options = {}) {
|
|
return this.request('OPTIONS', url, options);
|
|
}
|
|
/**
|
|
* Constructs an observable that, when subscribed, causes the configured
|
|
* `PATCH` request to execute on the server. See the individual overloads for
|
|
* details on the return type.
|
|
*/
|
|
patch(url, body, options = {}) {
|
|
return this.request('PATCH', url, addBody(options, body));
|
|
}
|
|
/**
|
|
* Constructs an observable that, when subscribed, causes the configured
|
|
* `POST` request to execute on the server. The server responds with the location of
|
|
* the replaced resource. See the individual overloads for
|
|
* details on the return type.
|
|
*/
|
|
post(url, body, options = {}) {
|
|
return this.request('POST', url, addBody(options, body));
|
|
}
|
|
/**
|
|
* Constructs an observable that, when subscribed, causes the configured
|
|
* `PUT` request to execute on the server. The `PUT` method replaces an existing resource
|
|
* with a new set of values.
|
|
* See the individual overloads for details on the return type.
|
|
*/
|
|
put(url, body, options = {}) {
|
|
return this.request('PUT', url, addBody(options, body));
|
|
}
|
|
}
|
|
HttpClient.decorators = [
|
|
{ type: Injectable }
|
|
];
|
|
HttpClient.ctorParameters = () => [
|
|
{ type: HttpHandler }
|
|
];
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
/**
|
|
* `HttpHandler` which applies an `HttpInterceptor` to an `HttpRequest`.
|
|
*
|
|
*
|
|
*/
|
|
class HttpInterceptorHandler {
|
|
constructor(next, interceptor) {
|
|
this.next = next;
|
|
this.interceptor = interceptor;
|
|
}
|
|
handle(req) {
|
|
return this.interceptor.intercept(req, this.next);
|
|
}
|
|
}
|
|
/**
|
|
* A multi-provider token that represents the array of registered
|
|
* `HttpInterceptor` objects.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
const HTTP_INTERCEPTORS = new InjectionToken('HTTP_INTERCEPTORS');
|
|
class NoopInterceptor {
|
|
intercept(req, next) {
|
|
return next.handle(req);
|
|
}
|
|
}
|
|
NoopInterceptor.decorators = [
|
|
{ type: Injectable }
|
|
];
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
// Every request made through JSONP needs a callback name that's unique across the
|
|
// whole page. Each request is assigned an id and the callback name is constructed
|
|
// from that. The next id to be assigned is tracked in a global variable here that
|
|
// is shared among all applications on the page.
|
|
let nextRequestId = 0;
|
|
// Error text given when a JSONP script is injected, but doesn't invoke the callback
|
|
// passed in its URL.
|
|
const JSONP_ERR_NO_CALLBACK = 'JSONP injected script did not invoke callback.';
|
|
// Error text given when a request is passed to the JsonpClientBackend that doesn't
|
|
// have a request method JSONP.
|
|
const JSONP_ERR_WRONG_METHOD = 'JSONP requests must use JSONP request method.';
|
|
const JSONP_ERR_WRONG_RESPONSE_TYPE = 'JSONP requests must use Json response type.';
|
|
/**
|
|
* DI token/abstract type representing a map of JSONP callbacks.
|
|
*
|
|
* In the browser, this should always be the `window` object.
|
|
*
|
|
*
|
|
*/
|
|
class JsonpCallbackContext {
|
|
}
|
|
/**
|
|
* Processes an `HttpRequest` with the JSONP method,
|
|
* by performing JSONP style requests.
|
|
* @see `HttpHandler`
|
|
* @see `HttpXhrBackend`
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class JsonpClientBackend {
|
|
constructor(callbackMap, document) {
|
|
this.callbackMap = callbackMap;
|
|
this.document = document;
|
|
/**
|
|
* A resolved promise that can be used to schedule microtasks in the event handlers.
|
|
*/
|
|
this.resolvedPromise = Promise.resolve();
|
|
}
|
|
/**
|
|
* Get the name of the next callback method, by incrementing the global `nextRequestId`.
|
|
*/
|
|
nextCallback() {
|
|
return `ng_jsonp_callback_${nextRequestId++}`;
|
|
}
|
|
/**
|
|
* Processes a JSONP request and returns an event stream of the results.
|
|
* @param req The request object.
|
|
* @returns An observable of the response events.
|
|
*
|
|
*/
|
|
handle(req) {
|
|
// Firstly, check both the method and response type. If either doesn't match
|
|
// then the request was improperly routed here and cannot be handled.
|
|
if (req.method !== 'JSONP') {
|
|
throw new Error(JSONP_ERR_WRONG_METHOD);
|
|
}
|
|
else if (req.responseType !== 'json') {
|
|
throw new Error(JSONP_ERR_WRONG_RESPONSE_TYPE);
|
|
}
|
|
// Everything else happens inside the Observable boundary.
|
|
return new Observable((observer) => {
|
|
// The first step to make a request is to generate the callback name, and replace the
|
|
// callback placeholder in the URL with the name. Care has to be taken here to ensure
|
|
// a trailing &, if matched, gets inserted back into the URL in the correct place.
|
|
const callback = this.nextCallback();
|
|
const url = req.urlWithParams.replace(/=JSONP_CALLBACK(&|$)/, `=${callback}$1`);
|
|
// Construct the <script> tag and point it at the URL.
|
|
const node = this.document.createElement('script');
|
|
node.src = url;
|
|
// A JSONP request requires waiting for multiple callbacks. These variables
|
|
// are closed over and track state across those callbacks.
|
|
// The response object, if one has been received, or null otherwise.
|
|
let body = null;
|
|
// Whether the response callback has been called.
|
|
let finished = false;
|
|
// Whether the request has been cancelled (and thus any other callbacks)
|
|
// should be ignored.
|
|
let cancelled = false;
|
|
// Set the response callback in this.callbackMap (which will be the window
|
|
// object in the browser. The script being loaded via the <script> tag will
|
|
// eventually call this callback.
|
|
this.callbackMap[callback] = (data) => {
|
|
// Data has been received from the JSONP script. Firstly, delete this callback.
|
|
delete this.callbackMap[callback];
|
|
// Next, make sure the request wasn't cancelled in the meantime.
|
|
if (cancelled) {
|
|
return;
|
|
}
|
|
// Set state to indicate data was received.
|
|
body = data;
|
|
finished = true;
|
|
};
|
|
// cleanup() is a utility closure that removes the <script> from the page and
|
|
// the response callback from the window. This logic is used in both the
|
|
// success, error, and cancellation paths, so it's extracted out for convenience.
|
|
const cleanup = () => {
|
|
// Remove the <script> tag if it's still on the page.
|
|
if (node.parentNode) {
|
|
node.parentNode.removeChild(node);
|
|
}
|
|
// Remove the response callback from the callbackMap (window object in the
|
|
// browser).
|
|
delete this.callbackMap[callback];
|
|
};
|
|
// onLoad() is the success callback which runs after the response callback
|
|
// if the JSONP script loads successfully. The event itself is unimportant.
|
|
// If something went wrong, onLoad() may run without the response callback
|
|
// having been invoked.
|
|
const onLoad = (event) => {
|
|
// Do nothing if the request has been cancelled.
|
|
if (cancelled) {
|
|
return;
|
|
}
|
|
// We wrap it in an extra Promise, to ensure the microtask
|
|
// is scheduled after the loaded endpoint has executed any potential microtask itself,
|
|
// which is not guaranteed in Internet Explorer and EdgeHTML. See issue #39496
|
|
this.resolvedPromise.then(() => {
|
|
// Cleanup the page.
|
|
cleanup();
|
|
// Check whether the response callback has run.
|
|
if (!finished) {
|
|
// It hasn't, something went wrong with the request. Return an error via
|
|
// the Observable error path. All JSONP errors have status 0.
|
|
observer.error(new HttpErrorResponse({
|
|
url,
|
|
status: 0,
|
|
statusText: 'JSONP Error',
|
|
error: new Error(JSONP_ERR_NO_CALLBACK),
|
|
}));
|
|
return;
|
|
}
|
|
// Success. body either contains the response body or null if none was
|
|
// returned.
|
|
observer.next(new HttpResponse({
|
|
body,
|
|
status: 200 /* Ok */,
|
|
statusText: 'OK',
|
|
url,
|
|
}));
|
|
// Complete the stream, the response is over.
|
|
observer.complete();
|
|
});
|
|
};
|
|
// onError() is the error callback, which runs if the script returned generates
|
|
// a Javascript error. It emits the error via the Observable error channel as
|
|
// a HttpErrorResponse.
|
|
const onError = (error) => {
|
|
// If the request was already cancelled, no need to emit anything.
|
|
if (cancelled) {
|
|
return;
|
|
}
|
|
cleanup();
|
|
// Wrap the error in a HttpErrorResponse.
|
|
observer.error(new HttpErrorResponse({
|
|
error,
|
|
status: 0,
|
|
statusText: 'JSONP Error',
|
|
url,
|
|
}));
|
|
};
|
|
// Subscribe to both the success (load) and error events on the <script> tag,
|
|
// and add it to the page.
|
|
node.addEventListener('load', onLoad);
|
|
node.addEventListener('error', onError);
|
|
this.document.body.appendChild(node);
|
|
// The request has now been successfully sent.
|
|
observer.next({ type: HttpEventType.Sent });
|
|
// Cancellation handler.
|
|
return () => {
|
|
// Track the cancellation so event listeners won't do anything even if already scheduled.
|
|
cancelled = true;
|
|
// Remove the event listeners so they won't run if the events later fire.
|
|
node.removeEventListener('load', onLoad);
|
|
node.removeEventListener('error', onError);
|
|
// And finally, clean up the page.
|
|
cleanup();
|
|
};
|
|
});
|
|
}
|
|
}
|
|
JsonpClientBackend.decorators = [
|
|
{ type: Injectable }
|
|
];
|
|
JsonpClientBackend.ctorParameters = () => [
|
|
{ type: JsonpCallbackContext },
|
|
{ type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }
|
|
];
|
|
/**
|
|
* Identifies requests with the method JSONP and
|
|
* shifts them to the `JsonpClientBackend`.
|
|
*
|
|
* @see `HttpInterceptor`
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class JsonpInterceptor {
|
|
constructor(jsonp) {
|
|
this.jsonp = jsonp;
|
|
}
|
|
/**
|
|
* Identifies and handles a given JSONP request.
|
|
* @param req The outgoing request object to handle.
|
|
* @param next The next interceptor in the chain, or the backend
|
|
* if no interceptors remain in the chain.
|
|
* @returns An observable of the event stream.
|
|
*/
|
|
intercept(req, next) {
|
|
if (req.method === 'JSONP') {
|
|
return this.jsonp.handle(req);
|
|
}
|
|
// Fall through for normal HTTP requests.
|
|
return next.handle(req);
|
|
}
|
|
}
|
|
JsonpInterceptor.decorators = [
|
|
{ type: Injectable }
|
|
];
|
|
JsonpInterceptor.ctorParameters = () => [
|
|
{ type: JsonpClientBackend }
|
|
];
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
const XSSI_PREFIX = /^\)\]\}',?\n/;
|
|
/**
|
|
* Determine an appropriate URL for the response, by checking either
|
|
* XMLHttpRequest.responseURL or the X-Request-URL header.
|
|
*/
|
|
function getResponseUrl(xhr) {
|
|
if ('responseURL' in xhr && xhr.responseURL) {
|
|
return xhr.responseURL;
|
|
}
|
|
if (/^X-Request-URL:/m.test(xhr.getAllResponseHeaders())) {
|
|
return xhr.getResponseHeader('X-Request-URL');
|
|
}
|
|
return null;
|
|
}
|
|
/**
|
|
* Uses `XMLHttpRequest` to send requests to a backend server.
|
|
* @see `HttpHandler`
|
|
* @see `JsonpClientBackend`
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpXhrBackend {
|
|
constructor(xhrFactory) {
|
|
this.xhrFactory = xhrFactory;
|
|
}
|
|
/**
|
|
* Processes a request and returns a stream of response events.
|
|
* @param req The request object.
|
|
* @returns An observable of the response events.
|
|
*/
|
|
handle(req) {
|
|
// Quick check to give a better error message when a user attempts to use
|
|
// HttpClient.jsonp() without installing the HttpClientJsonpModule
|
|
if (req.method === 'JSONP') {
|
|
throw new Error(`Attempted to construct Jsonp request without HttpClientJsonpModule installed.`);
|
|
}
|
|
// Everything happens on Observable subscription.
|
|
return new Observable((observer) => {
|
|
// Start by setting up the XHR object with request method, URL, and withCredentials flag.
|
|
const xhr = this.xhrFactory.build();
|
|
xhr.open(req.method, req.urlWithParams);
|
|
if (!!req.withCredentials) {
|
|
xhr.withCredentials = true;
|
|
}
|
|
// Add all the requested headers.
|
|
req.headers.forEach((name, values) => xhr.setRequestHeader(name, values.join(',')));
|
|
// Add an Accept header if one isn't present already.
|
|
if (!req.headers.has('Accept')) {
|
|
xhr.setRequestHeader('Accept', 'application/json, text/plain, */*');
|
|
}
|
|
// Auto-detect the Content-Type header if one isn't present already.
|
|
if (!req.headers.has('Content-Type')) {
|
|
const detectedType = req.detectContentTypeHeader();
|
|
// Sometimes Content-Type detection fails.
|
|
if (detectedType !== null) {
|
|
xhr.setRequestHeader('Content-Type', detectedType);
|
|
}
|
|
}
|
|
// Set the responseType if one was requested.
|
|
if (req.responseType) {
|
|
const responseType = req.responseType.toLowerCase();
|
|
// JSON responses need to be processed as text. This is because if the server
|
|
// returns an XSSI-prefixed JSON response, the browser will fail to parse it,
|
|
// xhr.response will be null, and xhr.responseText cannot be accessed to
|
|
// retrieve the prefixed JSON data in order to strip the prefix. Thus, all JSON
|
|
// is parsed by first requesting text and then applying JSON.parse.
|
|
xhr.responseType = ((responseType !== 'json') ? responseType : 'text');
|
|
}
|
|
// Serialize the request body if one is present. If not, this will be set to null.
|
|
const reqBody = req.serializeBody();
|
|
// If progress events are enabled, response headers will be delivered
|
|
// in two events - the HttpHeaderResponse event and the full HttpResponse
|
|
// event. However, since response headers don't change in between these
|
|
// two events, it doesn't make sense to parse them twice. So headerResponse
|
|
// caches the data extracted from the response whenever it's first parsed,
|
|
// to ensure parsing isn't duplicated.
|
|
let headerResponse = null;
|
|
// partialFromXhr extracts the HttpHeaderResponse from the current XMLHttpRequest
|
|
// state, and memoizes it into headerResponse.
|
|
const partialFromXhr = () => {
|
|
if (headerResponse !== null) {
|
|
return headerResponse;
|
|
}
|
|
// Read status and normalize an IE9 bug (https://bugs.jquery.com/ticket/1450).
|
|
const status = xhr.status === 1223 ? 204 /* NoContent */ : xhr.status;
|
|
const statusText = xhr.statusText || 'OK';
|
|
// Parse headers from XMLHttpRequest - this step is lazy.
|
|
const headers = new HttpHeaders(xhr.getAllResponseHeaders());
|
|
// Read the response URL from the XMLHttpResponse instance and fall back on the
|
|
// request URL.
|
|
const url = getResponseUrl(xhr) || req.url;
|
|
// Construct the HttpHeaderResponse and memoize it.
|
|
headerResponse = new HttpHeaderResponse({ headers, status, statusText, url });
|
|
return headerResponse;
|
|
};
|
|
// Next, a few closures are defined for the various events which XMLHttpRequest can
|
|
// emit. This allows them to be unregistered as event listeners later.
|
|
// First up is the load event, which represents a response being fully available.
|
|
const onLoad = () => {
|
|
// Read response state from the memoized partial data.
|
|
let { headers, status, statusText, url } = partialFromXhr();
|
|
// The body will be read out if present.
|
|
let body = null;
|
|
if (status !== 204 /* NoContent */) {
|
|
// Use XMLHttpRequest.response if set, responseText otherwise.
|
|
body = (typeof xhr.response === 'undefined') ? xhr.responseText : xhr.response;
|
|
}
|
|
// Normalize another potential bug (this one comes from CORS).
|
|
if (status === 0) {
|
|
status = !!body ? 200 /* Ok */ : 0;
|
|
}
|
|
// ok determines whether the response will be transmitted on the event or
|
|
// error channel. Unsuccessful status codes (not 2xx) will always be errors,
|
|
// but a successful status code can still result in an error if the user
|
|
// asked for JSON data and the body cannot be parsed as such.
|
|
let ok = status >= 200 && status < 300;
|
|
// Check whether the body needs to be parsed as JSON (in many cases the browser
|
|
// will have done that already).
|
|
if (req.responseType === 'json' && typeof body === 'string') {
|
|
// Save the original body, before attempting XSSI prefix stripping.
|
|
const originalBody = body;
|
|
body = body.replace(XSSI_PREFIX, '');
|
|
try {
|
|
// Attempt the parse. If it fails, a parse error should be delivered to the user.
|
|
body = body !== '' ? JSON.parse(body) : null;
|
|
}
|
|
catch (error) {
|
|
// Since the JSON.parse failed, it's reasonable to assume this might not have been a
|
|
// JSON response. Restore the original body (including any XSSI prefix) to deliver
|
|
// a better error response.
|
|
body = originalBody;
|
|
// If this was an error request to begin with, leave it as a string, it probably
|
|
// just isn't JSON. Otherwise, deliver the parsing error to the user.
|
|
if (ok) {
|
|
// Even though the response status was 2xx, this is still an error.
|
|
ok = false;
|
|
// The parse error contains the text of the body that failed to parse.
|
|
body = { error, text: body };
|
|
}
|
|
}
|
|
}
|
|
if (ok) {
|
|
// A successful response is delivered on the event stream.
|
|
observer.next(new HttpResponse({
|
|
body,
|
|
headers,
|
|
status,
|
|
statusText,
|
|
url: url || undefined,
|
|
}));
|
|
// The full body has been received and delivered, no further events
|
|
// are possible. This request is complete.
|
|
observer.complete();
|
|
}
|
|
else {
|
|
// An unsuccessful request is delivered on the error channel.
|
|
observer.error(new HttpErrorResponse({
|
|
// The error in this case is the response body (error from the server).
|
|
error: body,
|
|
headers,
|
|
status,
|
|
statusText,
|
|
url: url || undefined,
|
|
}));
|
|
}
|
|
};
|
|
// The onError callback is called when something goes wrong at the network level.
|
|
// Connection timeout, DNS error, offline, etc. These are actual errors, and are
|
|
// transmitted on the error channel.
|
|
const onError = (error) => {
|
|
const { url } = partialFromXhr();
|
|
const res = new HttpErrorResponse({
|
|
error,
|
|
status: xhr.status || 0,
|
|
statusText: xhr.statusText || 'Unknown Error',
|
|
url: url || undefined,
|
|
});
|
|
observer.error(res);
|
|
};
|
|
// The sentHeaders flag tracks whether the HttpResponseHeaders event
|
|
// has been sent on the stream. This is necessary to track if progress
|
|
// is enabled since the event will be sent on only the first download
|
|
// progerss event.
|
|
let sentHeaders = false;
|
|
// The download progress event handler, which is only registered if
|
|
// progress events are enabled.
|
|
const onDownProgress = (event) => {
|
|
// Send the HttpResponseHeaders event if it hasn't been sent already.
|
|
if (!sentHeaders) {
|
|
observer.next(partialFromXhr());
|
|
sentHeaders = true;
|
|
}
|
|
// Start building the download progress event to deliver on the response
|
|
// event stream.
|
|
let progressEvent = {
|
|
type: HttpEventType.DownloadProgress,
|
|
loaded: event.loaded,
|
|
};
|
|
// Set the total number of bytes in the event if it's available.
|
|
if (event.lengthComputable) {
|
|
progressEvent.total = event.total;
|
|
}
|
|
// If the request was for text content and a partial response is
|
|
// available on XMLHttpRequest, include it in the progress event
|
|
// to allow for streaming reads.
|
|
if (req.responseType === 'text' && !!xhr.responseText) {
|
|
progressEvent.partialText = xhr.responseText;
|
|
}
|
|
// Finally, fire the event.
|
|
observer.next(progressEvent);
|
|
};
|
|
// The upload progress event handler, which is only registered if
|
|
// progress events are enabled.
|
|
const onUpProgress = (event) => {
|
|
// Upload progress events are simpler. Begin building the progress
|
|
// event.
|
|
let progress = {
|
|
type: HttpEventType.UploadProgress,
|
|
loaded: event.loaded,
|
|
};
|
|
// If the total number of bytes being uploaded is available, include
|
|
// it.
|
|
if (event.lengthComputable) {
|
|
progress.total = event.total;
|
|
}
|
|
// Send the event.
|
|
observer.next(progress);
|
|
};
|
|
// By default, register for load and error events.
|
|
xhr.addEventListener('load', onLoad);
|
|
xhr.addEventListener('error', onError);
|
|
xhr.addEventListener('timeout', onError);
|
|
xhr.addEventListener('abort', onError);
|
|
// Progress events are only enabled if requested.
|
|
if (req.reportProgress) {
|
|
// Download progress is always enabled if requested.
|
|
xhr.addEventListener('progress', onDownProgress);
|
|
// Upload progress depends on whether there is a body to upload.
|
|
if (reqBody !== null && xhr.upload) {
|
|
xhr.upload.addEventListener('progress', onUpProgress);
|
|
}
|
|
}
|
|
// Fire the request, and notify the event stream that it was fired.
|
|
xhr.send(reqBody);
|
|
observer.next({ type: HttpEventType.Sent });
|
|
// This is the return from the Observable function, which is the
|
|
// request cancellation handler.
|
|
return () => {
|
|
// On a cancellation, remove all registered event listeners.
|
|
xhr.removeEventListener('error', onError);
|
|
xhr.removeEventListener('abort', onError);
|
|
xhr.removeEventListener('load', onLoad);
|
|
xhr.removeEventListener('timeout', onError);
|
|
if (req.reportProgress) {
|
|
xhr.removeEventListener('progress', onDownProgress);
|
|
if (reqBody !== null && xhr.upload) {
|
|
xhr.upload.removeEventListener('progress', onUpProgress);
|
|
}
|
|
}
|
|
// Finally, abort the in-flight request.
|
|
if (xhr.readyState !== xhr.DONE) {
|
|
xhr.abort();
|
|
}
|
|
};
|
|
});
|
|
}
|
|
}
|
|
HttpXhrBackend.decorators = [
|
|
{ type: Injectable }
|
|
];
|
|
HttpXhrBackend.ctorParameters = () => [
|
|
{ type: XhrFactory$1 }
|
|
];
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
const XSRF_COOKIE_NAME = new InjectionToken('XSRF_COOKIE_NAME');
|
|
const XSRF_HEADER_NAME = new InjectionToken('XSRF_HEADER_NAME');
|
|
/**
|
|
* Retrieves the current XSRF token to use with the next outgoing request.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpXsrfTokenExtractor {
|
|
}
|
|
/**
|
|
* `HttpXsrfTokenExtractor` which retrieves the token from a cookie.
|
|
*/
|
|
class HttpXsrfCookieExtractor {
|
|
constructor(doc, platform, cookieName) {
|
|
this.doc = doc;
|
|
this.platform = platform;
|
|
this.cookieName = cookieName;
|
|
this.lastCookieString = '';
|
|
this.lastToken = null;
|
|
/**
|
|
* @internal for testing
|
|
*/
|
|
this.parseCount = 0;
|
|
}
|
|
getToken() {
|
|
if (this.platform === 'server') {
|
|
return null;
|
|
}
|
|
const cookieString = this.doc.cookie || '';
|
|
if (cookieString !== this.lastCookieString) {
|
|
this.parseCount++;
|
|
this.lastToken = ɵparseCookieValue(cookieString, this.cookieName);
|
|
this.lastCookieString = cookieString;
|
|
}
|
|
return this.lastToken;
|
|
}
|
|
}
|
|
HttpXsrfCookieExtractor.decorators = [
|
|
{ type: Injectable }
|
|
];
|
|
HttpXsrfCookieExtractor.ctorParameters = () => [
|
|
{ type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },
|
|
{ type: String, decorators: [{ type: Inject, args: [PLATFORM_ID,] }] },
|
|
{ type: String, decorators: [{ type: Inject, args: [XSRF_COOKIE_NAME,] }] }
|
|
];
|
|
/**
|
|
* `HttpInterceptor` which adds an XSRF token to eligible outgoing requests.
|
|
*/
|
|
class HttpXsrfInterceptor {
|
|
constructor(tokenService, headerName) {
|
|
this.tokenService = tokenService;
|
|
this.headerName = headerName;
|
|
}
|
|
intercept(req, next) {
|
|
const lcUrl = req.url.toLowerCase();
|
|
// Skip both non-mutating requests and absolute URLs.
|
|
// Non-mutating requests don't require a token, and absolute URLs require special handling
|
|
// anyway as the cookie set
|
|
// on our origin is not the same as the token expected by another origin.
|
|
if (req.method === 'GET' || req.method === 'HEAD' || lcUrl.startsWith('http://') ||
|
|
lcUrl.startsWith('https://')) {
|
|
return next.handle(req);
|
|
}
|
|
const token = this.tokenService.getToken();
|
|
// Be careful not to overwrite an existing header of the same name.
|
|
if (token !== null && !req.headers.has(this.headerName)) {
|
|
req = req.clone({ headers: req.headers.set(this.headerName, token) });
|
|
}
|
|
return next.handle(req);
|
|
}
|
|
}
|
|
HttpXsrfInterceptor.decorators = [
|
|
{ type: Injectable }
|
|
];
|
|
HttpXsrfInterceptor.ctorParameters = () => [
|
|
{ type: HttpXsrfTokenExtractor },
|
|
{ type: String, decorators: [{ type: Inject, args: [XSRF_HEADER_NAME,] }] }
|
|
];
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
/**
|
|
* An injectable `HttpHandler` that applies multiple interceptors
|
|
* to a request before passing it to the given `HttpBackend`.
|
|
*
|
|
* The interceptors are loaded lazily from the injector, to allow
|
|
* interceptors to themselves inject classes depending indirectly
|
|
* on `HttpInterceptingHandler` itself.
|
|
* @see `HttpInterceptor`
|
|
*/
|
|
class HttpInterceptingHandler {
|
|
constructor(backend, injector) {
|
|
this.backend = backend;
|
|
this.injector = injector;
|
|
this.chain = null;
|
|
}
|
|
handle(req) {
|
|
if (this.chain === null) {
|
|
const interceptors = this.injector.get(HTTP_INTERCEPTORS, []);
|
|
this.chain = interceptors.reduceRight((next, interceptor) => new HttpInterceptorHandler(next, interceptor), this.backend);
|
|
}
|
|
return this.chain.handle(req);
|
|
}
|
|
}
|
|
HttpInterceptingHandler.decorators = [
|
|
{ type: Injectable }
|
|
];
|
|
HttpInterceptingHandler.ctorParameters = () => [
|
|
{ type: HttpBackend },
|
|
{ type: Injector }
|
|
];
|
|
/**
|
|
* Constructs an `HttpHandler` that applies interceptors
|
|
* to a request before passing it to the given `HttpBackend`.
|
|
*
|
|
* Use as a factory function within `HttpClientModule`.
|
|
*
|
|
*
|
|
*/
|
|
function interceptingHandler(backend, interceptors = []) {
|
|
if (!interceptors) {
|
|
return backend;
|
|
}
|
|
return interceptors.reduceRight((next, interceptor) => new HttpInterceptorHandler(next, interceptor), backend);
|
|
}
|
|
/**
|
|
* Factory function that determines where to store JSONP callbacks.
|
|
*
|
|
* Ordinarily JSONP callbacks are stored on the `window` object, but this may not exist
|
|
* in test environments. In that case, callbacks are stored on an anonymous object instead.
|
|
*
|
|
*
|
|
*/
|
|
function jsonpCallbackContext() {
|
|
if (typeof window === 'object') {
|
|
return window;
|
|
}
|
|
return {};
|
|
}
|
|
/**
|
|
* Configures XSRF protection support for outgoing requests.
|
|
*
|
|
* For a server that supports a cookie-based XSRF protection system,
|
|
* use directly to configure XSRF protection with the correct
|
|
* cookie and header names.
|
|
*
|
|
* If no names are supplied, the default cookie name is `XSRF-TOKEN`
|
|
* and the default header name is `X-XSRF-TOKEN`.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpClientXsrfModule {
|
|
/**
|
|
* Disable the default XSRF protection.
|
|
*/
|
|
static disable() {
|
|
return {
|
|
ngModule: HttpClientXsrfModule,
|
|
providers: [
|
|
{ provide: HttpXsrfInterceptor, useClass: NoopInterceptor },
|
|
],
|
|
};
|
|
}
|
|
/**
|
|
* Configure XSRF protection.
|
|
* @param options An object that can specify either or both
|
|
* cookie name or header name.
|
|
* - Cookie name default is `XSRF-TOKEN`.
|
|
* - Header name default is `X-XSRF-TOKEN`.
|
|
*
|
|
*/
|
|
static withOptions(options = {}) {
|
|
return {
|
|
ngModule: HttpClientXsrfModule,
|
|
providers: [
|
|
options.cookieName ? { provide: XSRF_COOKIE_NAME, useValue: options.cookieName } : [],
|
|
options.headerName ? { provide: XSRF_HEADER_NAME, useValue: options.headerName } : [],
|
|
],
|
|
};
|
|
}
|
|
}
|
|
HttpClientXsrfModule.decorators = [
|
|
{ type: NgModule, args: [{
|
|
providers: [
|
|
HttpXsrfInterceptor,
|
|
{ provide: HTTP_INTERCEPTORS, useExisting: HttpXsrfInterceptor, multi: true },
|
|
{ provide: HttpXsrfTokenExtractor, useClass: HttpXsrfCookieExtractor },
|
|
{ provide: XSRF_COOKIE_NAME, useValue: 'XSRF-TOKEN' },
|
|
{ provide: XSRF_HEADER_NAME, useValue: 'X-XSRF-TOKEN' },
|
|
],
|
|
},] }
|
|
];
|
|
/**
|
|
* Configures the [dependency injector](guide/glossary#injector) for `HttpClient`
|
|
* with supporting services for XSRF. Automatically imported by `HttpClientModule`.
|
|
*
|
|
* You can add interceptors to the chain behind `HttpClient` by binding them to the
|
|
* multiprovider for built-in [DI token](guide/glossary#di-token) `HTTP_INTERCEPTORS`.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpClientModule {
|
|
}
|
|
HttpClientModule.decorators = [
|
|
{ type: NgModule, args: [{
|
|
/**
|
|
* Optional configuration for XSRF protection.
|
|
*/
|
|
imports: [
|
|
HttpClientXsrfModule.withOptions({
|
|
cookieName: 'XSRF-TOKEN',
|
|
headerName: 'X-XSRF-TOKEN',
|
|
}),
|
|
],
|
|
/**
|
|
* Configures the [dependency injector](guide/glossary#injector) where it is imported
|
|
* with supporting services for HTTP communications.
|
|
*/
|
|
providers: [
|
|
HttpClient,
|
|
{ provide: HttpHandler, useClass: HttpInterceptingHandler },
|
|
HttpXhrBackend,
|
|
{ provide: HttpBackend, useExisting: HttpXhrBackend },
|
|
],
|
|
},] }
|
|
];
|
|
/**
|
|
* Configures the [dependency injector](guide/glossary#injector) for `HttpClient`
|
|
* with supporting services for JSONP.
|
|
* Without this module, Jsonp requests reach the backend
|
|
* with method JSONP, where they are rejected.
|
|
*
|
|
* You can add interceptors to the chain behind `HttpClient` by binding them to the
|
|
* multiprovider for built-in [DI token](guide/glossary#di-token) `HTTP_INTERCEPTORS`.
|
|
*
|
|
* @publicApi
|
|
*/
|
|
class HttpClientJsonpModule {
|
|
}
|
|
HttpClientJsonpModule.decorators = [
|
|
{ type: NgModule, args: [{
|
|
providers: [
|
|
JsonpClientBackend,
|
|
{ provide: JsonpCallbackContext, useFactory: jsonpCallbackContext },
|
|
{ provide: HTTP_INTERCEPTORS, useClass: JsonpInterceptor, multi: true },
|
|
],
|
|
},] }
|
|
];
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
/**
|
|
* A wrapper around the `XMLHttpRequest` constructor.
|
|
*
|
|
* @publicApi
|
|
* @see `XhrFactory`
|
|
* @deprecated
|
|
* `XhrFactory` has moved, please import `XhrFactory` from `@angular/common` instead.
|
|
*/
|
|
const XhrFactory = XhrFactory$1;
|
|
|
|
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
|
|
/**
|
|
* Generated bundle index. Do not edit.
|
|
*/
|
|
|
|
export { HTTP_INTERCEPTORS, HttpBackend, HttpClient, HttpClientJsonpModule, HttpClientModule, HttpClientXsrfModule, HttpContext, HttpContextToken, HttpErrorResponse, HttpEventType, HttpHandler, HttpHeaderResponse, HttpHeaders, HttpParams, HttpRequest, HttpResponse, HttpResponseBase, HttpUrlEncodingCodec, HttpXhrBackend, HttpXsrfTokenExtractor, JsonpClientBackend, JsonpInterceptor, XhrFactory, HttpInterceptingHandler as ɵHttpInterceptingHandler, NoopInterceptor as ɵangular_packages_common_http_http_a, JsonpCallbackContext as ɵangular_packages_common_http_http_b, jsonpCallbackContext as ɵangular_packages_common_http_http_c, XSRF_COOKIE_NAME as ɵangular_packages_common_http_http_d, XSRF_HEADER_NAME as ɵangular_packages_common_http_http_e, HttpXsrfCookieExtractor as ɵangular_packages_common_http_http_f, HttpXsrfInterceptor as ɵangular_packages_common_http_http_g };
|
|
//# sourceMappingURL=http.js.map
|