@angular/http
Version:
Angular - the http service
314 lines • 30.7 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @license
* Copyright Google Inc. 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
*/
import { Injectable } from '@angular/core';
import { ɵgetDOM as getDOM } from '@angular/platform-browser';
import { Observable } from 'rxjs';
import { ResponseOptions } from '../base_response_options';
import { ContentType, RequestMethod, ResponseContentType, ResponseType } from '../enums';
import { Headers } from '../headers';
import { getResponseURL, isSuccess } from '../http_utils';
import { XSRFStrategy } from '../interfaces';
import { Response } from '../static_response';
import { BrowserXhr } from './browser_xhr';
/** @type {?} */
const XSSI_PREFIX = /^\)\]\}',?\n/;
/**
* Creates connections using `XMLHttpRequest`. Given a fully-qualified
* request, an `XHRConnection` will immediately create an `XMLHttpRequest` object and send the
* request.
*
* This class would typically not be created or interacted with directly inside applications, though
* the {\@link MockConnection} may be interacted with in tests.
*
* @deprecated see https://angular.io/guide/http
* \@publicApi
*/
export class XHRConnection {
/**
* @param {?} req
* @param {?} browserXHR
* @param {?=} baseResponseOptions
*/
constructor(req, browserXHR, baseResponseOptions) {
this.request = req;
this.response = new Observable((responseObserver) => {
/** @type {?} */
const _xhr = browserXHR.build();
_xhr.open(RequestMethod[req.method].toUpperCase(), req.url);
if (req.withCredentials != null) {
_xhr.withCredentials = req.withCredentials;
}
// load event handler
/** @type {?} */
const onLoad = () => {
// normalize IE9 bug (http://bugs.jquery.com/ticket/1450)
/** @type {?} */
let status = _xhr.status === 1223 ? 204 : _xhr.status;
/** @type {?} */
let body = null;
// HTTP 204 means no content
if (status !== 204) {
// responseText is the old-school way of retrieving response (supported by IE8 & 9)
// response/responseType properties were introduced in ResourceLoader Level2 spec
// (supported by IE10)
body = (typeof _xhr.response === 'undefined') ? _xhr.responseText : _xhr.response;
// Implicitly strip a potential XSSI prefix.
if (typeof body === 'string') {
body = body.replace(XSSI_PREFIX, '');
}
}
// fix status code when it is 0 (0 status is undocumented).
// Occurs when accessing file resources or on Android 4.1 stock browser
// while retrieving files from application cache.
if (status === 0) {
status = body ? 200 : 0;
}
/** @type {?} */
const headers = Headers.fromResponseHeaderString(_xhr.getAllResponseHeaders());
// IE 9 does not provide the way to get URL of response
/** @type {?} */
const url = getResponseURL(_xhr) || req.url;
/** @type {?} */
const statusText = _xhr.statusText || 'OK';
/** @type {?} */
let responseOptions = new ResponseOptions({ body, status, headers, statusText, url });
if (baseResponseOptions != null) {
responseOptions = baseResponseOptions.merge(responseOptions);
}
/** @type {?} */
const response = new Response(responseOptions);
response.ok = isSuccess(status);
if (response.ok) {
responseObserver.next(response);
// TODO(gdi2290): defer complete if array buffer until done
responseObserver.complete();
return;
}
responseObserver.error(response);
};
// error event handler
/** @type {?} */
const onError = (err) => {
/** @type {?} */
let responseOptions = new ResponseOptions({
body: err,
type: ResponseType.Error,
status: _xhr.status,
statusText: _xhr.statusText,
});
if (baseResponseOptions != null) {
responseOptions = baseResponseOptions.merge(responseOptions);
}
responseObserver.error(new Response(responseOptions));
};
this.setDetectedContentType(req, _xhr);
if (req.headers == null) {
req.headers = new Headers();
}
if (!req.headers.has('Accept')) {
req.headers.append('Accept', 'application/json, text/plain, */*');
}
req.headers.forEach((values, name) => _xhr.setRequestHeader((/** @type {?} */ (name)), values.join(',')));
// Select the correct buffer type to store the response
if (req.responseType != null && _xhr.responseType != null) {
switch (req.responseType) {
case ResponseContentType.ArrayBuffer:
_xhr.responseType = 'arraybuffer';
break;
case ResponseContentType.Json:
_xhr.responseType = 'json';
break;
case ResponseContentType.Text:
_xhr.responseType = 'text';
break;
case ResponseContentType.Blob:
_xhr.responseType = 'blob';
break;
default:
throw new Error('The selected responseType is not supported');
}
}
_xhr.addEventListener('load', onLoad);
_xhr.addEventListener('error', onError);
_xhr.send(this.request.getBody());
return () => {
_xhr.removeEventListener('load', onLoad);
_xhr.removeEventListener('error', onError);
_xhr.abort();
};
});
}
/**
* @param {?} req
* @param {?} _xhr
* @return {?}
*/
setDetectedContentType(req /** TODO Request */, _xhr /** XMLHttpRequest */) {
// Skip if a custom Content-Type header is provided
if (req.headers != null && req.headers.get('Content-Type') != null) {
return;
}
// Set the detected content type
switch (req.contentType) {
case ContentType.NONE:
break;
case ContentType.JSON:
_xhr.setRequestHeader('content-type', 'application/json');
break;
case ContentType.FORM:
_xhr.setRequestHeader('content-type', 'application/x-www-form-urlencoded;charset=UTF-8');
break;
case ContentType.TEXT:
_xhr.setRequestHeader('content-type', 'text/plain');
break;
case ContentType.BLOB:
/** @type {?} */
const blob = req.blob();
if (blob.type) {
_xhr.setRequestHeader('content-type', blob.type);
}
break;
}
}
}
if (false) {
/** @type {?} */
XHRConnection.prototype.request;
/**
* Response {\@link EventEmitter} which emits a single {\@link Response} value on load event of
* `XMLHttpRequest`.
* @type {?}
*/
XHRConnection.prototype.response;
/** @type {?} */
XHRConnection.prototype.readyState;
}
/**
* `XSRFConfiguration` sets up Cross Site Request Forgery (XSRF) protection for the application
* using a cookie. See https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)
* for more information on XSRF.
*
* Applications can configure custom cookie and header names by binding an instance of this class
* with different `cookieName` and `headerName` values. See the main HTTP documentation for more
* details.
*
* @deprecated see https://angular.io/guide/http
* \@publicApi
*/
export class CookieXSRFStrategy {
/**
* @param {?=} _cookieName
* @param {?=} _headerName
*/
constructor(_cookieName = 'XSRF-TOKEN', _headerName = 'X-XSRF-TOKEN') {
this._cookieName = _cookieName;
this._headerName = _headerName;
}
/**
* @param {?} req
* @return {?}
*/
configureRequest(req) {
/** @type {?} */
const xsrfToken = getDOM().getCookie(this._cookieName);
if (xsrfToken) {
req.headers.set(this._headerName, xsrfToken);
}
}
}
if (false) {
/**
* @type {?}
* @private
*/
CookieXSRFStrategy.prototype._cookieName;
/**
* @type {?}
* @private
*/
CookieXSRFStrategy.prototype._headerName;
}
/**
* Creates {\@link XHRConnection} instances.
*
* This class would typically not be used by end users, but could be
* overridden if a different backend implementation should be used,
* such as in a node backend.
*
* \@usageNotes
* ### Example
*
* ```
* import {Http, MyNodeBackend, HTTP_PROVIDERS, BaseRequestOptions} from '\@angular/http';
* \@Component({
* viewProviders: [
* HTTP_PROVIDERS,
* {provide: Http, useFactory: (backend, options) => {
* return new Http(backend, options);
* }, deps: [MyNodeBackend, BaseRequestOptions]}]
* })
* class MyComponent {
* constructor(http:Http) {
* http.request('people.json').subscribe(res => this.people = res.json());
* }
* }
* ```
* @deprecated see https://angular.io/guide/http
* \@publicApi
*/
export class XHRBackend {
/**
* @param {?} _browserXHR
* @param {?} _baseResponseOptions
* @param {?} _xsrfStrategy
*/
constructor(_browserXHR, _baseResponseOptions, _xsrfStrategy) {
this._browserXHR = _browserXHR;
this._baseResponseOptions = _baseResponseOptions;
this._xsrfStrategy = _xsrfStrategy;
}
/**
* @param {?} request
* @return {?}
*/
createConnection(request) {
this._xsrfStrategy.configureRequest(request);
return new XHRConnection(request, this._browserXHR, this._baseResponseOptions);
}
}
XHRBackend.decorators = [
{ type: Injectable }
];
/** @nocollapse */
XHRBackend.ctorParameters = () => [
{ type: BrowserXhr },
{ type: ResponseOptions },
{ type: XSRFStrategy }
];
if (false) {
/**
* @type {?}
* @private
*/
XHRBackend.prototype._browserXHR;
/**
* @type {?}
* @private
*/
XHRBackend.prototype._baseResponseOptions;
/**
* @type {?}
* @private
*/
XHRBackend.prototype._xsrfStrategy;
}
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* @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Injectable} from '@angular/core';\nimport {ɵgetDOM as getDOM} from '@angular/platform-browser';\nimport {Observable, Observer} from 'rxjs';\nimport {ResponseOptions} from '../base_response_options';\nimport {ContentType, ReadyState, RequestMethod, ResponseContentType, ResponseType} from '../enums';\nimport {Headers} from '../headers';\nimport {getResponseURL, isSuccess} from '../http_utils';\nimport {Connection, ConnectionBackend, XSRFStrategy} from '../interfaces';\nimport {Request} from '../static_request';\nimport {Response} from '../static_response';\nimport {BrowserXhr} from './browser_xhr';\n\nconst XSSI_PREFIX = /^\\)\\]\\}',?\\n/;\n\n/**\n * Creates connections using `XMLHttpRequest`. Given a fully-qualified\n * request, an `XHRConnection` will immediately create an `XMLHttpRequest` object and send the\n * request.\n *\n * This class would typically not be created or interacted with directly inside applications, though\n * the {@link MockConnection} may be interacted with in tests.\n *\n * @deprecated see https://angular.io/guide/http\n * @publicApi\n */\nexport class XHRConnection implements Connection {\n  request: Request;\n  /**\n   * Response {@link EventEmitter} which emits a single {@link Response} value on load event of\n   * `XMLHttpRequest`.\n   */\n  response: Observable<Response>;\n  // TODO(issue/24571): remove '!'.\n  readyState !: ReadyState;\n  constructor(req: Request, browserXHR: BrowserXhr, baseResponseOptions?: ResponseOptions) {\n    this.request = req;\n    this.response = new Observable<Response>((responseObserver: Observer<Response>) => {\n      const _xhr: XMLHttpRequest = browserXHR.build();\n      _xhr.open(RequestMethod[req.method].toUpperCase(), req.url);\n      if (req.withCredentials != null) {\n        _xhr.withCredentials = req.withCredentials;\n      }\n      // load event handler\n      const onLoad = () => {\n        // normalize IE9 bug (http://bugs.jquery.com/ticket/1450)\n        let status: number = _xhr.status === 1223 ? 204 : _xhr.status;\n\n        let body: any = null;\n\n        // HTTP 204 means no content\n        if (status !== 204) {\n          // responseText is the old-school way of retrieving response (supported by IE8 & 9)\n          // response/responseType properties were introduced in ResourceLoader Level2 spec\n          // (supported by IE10)\n          body = (typeof _xhr.response === 'undefined') ? _xhr.responseText : _xhr.response;\n\n          // Implicitly strip a potential XSSI prefix.\n          if (typeof body === 'string') {\n            body = body.replace(XSSI_PREFIX, '');\n          }\n        }\n\n        // fix status code when it is 0 (0 status is undocumented).\n        // Occurs when accessing file resources or on Android 4.1 stock browser\n        // while retrieving files from application cache.\n        if (status === 0) {\n          status = body ? 200 : 0;\n        }\n\n        const headers: Headers = Headers.fromResponseHeaderString(_xhr.getAllResponseHeaders());\n        // IE 9 does not provide the way to get URL of response\n        const url = getResponseURL(_xhr) || req.url;\n        const statusText: string = _xhr.statusText || 'OK';\n\n        let responseOptions = new ResponseOptions({body, status, headers, statusText, url});\n        if (baseResponseOptions != null) {\n          responseOptions = baseResponseOptions.merge(responseOptions);\n        }\n        const response = new Response(responseOptions);\n        response.ok = isSuccess(status);\n        if (response.ok) {\n          responseObserver.next(response);\n          // TODO(gdi2290): defer complete if array buffer until done\n          responseObserver.complete();\n          return;\n        }\n        responseObserver.error(response);\n      };\n      // error event handler\n      const onError = (err: ErrorEvent) => {\n        let responseOptions = new ResponseOptions({\n          body: err,\n          type: ResponseType.Error,\n          status: _xhr.status,\n          statusText: _xhr.statusText,\n        });\n        if (baseResponseOptions != null) {\n          responseOptions = baseResponseOptions.merge(responseOptions);\n        }\n        responseObserver.error(new Response(responseOptions));\n      };\n\n      this.setDetectedContentType(req, _xhr);\n\n      if (req.headers == null) {\n        req.headers = new Headers();\n      }\n      if (!req.headers.has('Accept')) {\n        req.headers.append('Accept', 'application/json, text/plain, */*');\n      }\n      req.headers.forEach((values, name) => _xhr.setRequestHeader(name !, values.join(',')));\n\n      // Select the correct buffer type to store the response\n      if (req.responseType != null && _xhr.responseType != null) {\n        switch (req.responseType) {\n          case ResponseContentType.ArrayBuffer:\n            _xhr.responseType = 'arraybuffer';\n            break;\n          case ResponseContentType.Json:\n            _xhr.responseType = 'json';\n            break;\n          case ResponseContentType.Text:\n            _xhr.responseType = 'text';\n            break;\n          case ResponseContentType.Blob:\n            _xhr.responseType = 'blob';\n            break;\n          default:\n            throw new Error('The selected responseType is not supported');\n        }\n      }\n\n      _xhr.addEventListener('load', onLoad);\n      _xhr.addEventListener('error', onError);\n\n      _xhr.send(this.request.getBody());\n\n      return () => {\n        _xhr.removeEventListener('load', onLoad);\n        _xhr.removeEventListener('error', onError);\n        _xhr.abort();\n      };\n    });\n  }\n\n  setDetectedContentType(req: any /** TODO Request */, _xhr: any /** XMLHttpRequest */) {\n    // Skip if a custom Content-Type header is provided\n    if (req.headers != null && req.headers.get('Content-Type') != null) {\n      return;\n    }\n\n    // Set the detected content type\n    switch (req.contentType) {\n      case ContentType.NONE:\n        break;\n      case ContentType.JSON:\n        _xhr.setRequestHeader('content-type', 'application/json');\n        break;\n      case ContentType.FORM:\n        _xhr.setRequestHeader('content-type', 'application/x-www-form-urlencoded;charset=UTF-8');\n        break;\n      case ContentType.TEXT:\n        _xhr.setRequestHeader('content-type', 'text/plain');\n        break;\n      case ContentType.BLOB:\n        const blob = req.blob();\n        if (blob.type) {\n          _xhr.setRequestHeader('content-type', blob.type);\n        }\n        break;\n    }\n  }\n}\n\n/**\n * `XSRFConfiguration` sets up Cross Site Request Forgery (XSRF) protection for the application\n * using a cookie. See https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)\n * for more information on XSRF.\n *\n * Applications can configure custom cookie and header names by binding an instance of this class\n * with different `cookieName` and `headerName` values. See the main HTTP documentation for more\n * details.\n *\n * @deprecated see https://angular.io/guide/http\n * @publicApi\n */\nexport class CookieXSRFStrategy implements XSRFStrategy {\n  constructor(\n      private _cookieName: string = 'XSRF-TOKEN', private _headerName: string = 'X-XSRF-TOKEN') {}\n\n  configureRequest(req: Request): void {\n    const xsrfToken = getDOM().getCookie(this._cookieName);\n    if (xsrfToken) {\n      req.headers.set(this._headerName, xsrfToken);\n    }\n  }\n}\n\n/**\n * Creates {@link XHRConnection} instances.\n *\n * This class would typically not be used by end users, but could be\n * overridden if a different backend implementation should be used,\n * such as in a node backend.\n *\n * @usageNotes\n * ### Example\n *\n * ```\n * import {Http, MyNodeBackend, HTTP_PROVIDERS, BaseRequestOptions} from '@angular/http';\n * @Component({\n *   viewProviders: [\n *     HTTP_PROVIDERS,\n *     {provide: Http, useFactory: (backend, options) => {\n *       return new Http(backend, options);\n *     }, deps: [MyNodeBackend, BaseRequestOptions]}]\n * })\n * class MyComponent {\n *   constructor(http:Http) {\n *     http.request('people.json').subscribe(res => this.people = res.json());\n *   }\n * }\n * ```\n * @deprecated see https://angular.io/guide/http\n * @publicApi\n */\n@Injectable()\nexport class XHRBackend implements ConnectionBackend {\n  constructor(\n      private _browserXHR: BrowserXhr, private _baseResponseOptions: ResponseOptions,\n      private _xsrfStrategy: XSRFStrategy) {}\n\n  createConnection(request: Request): XHRConnection {\n    this._xsrfStrategy.configureRequest(request);\n    return new XHRConnection(request, this._browserXHR, this._baseResponseOptions);\n  }\n}\n"]}