source: trip-planner-front/node_modules/@angular/common/esm2015/http/src/xhr.js@ 571e0df

Last change on this file since 571e0df was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 40.7 KB
Line 
1/**
2 * @license
3 * Copyright Google LLC All Rights Reserved.
4 *
5 * Use of this source code is governed by an MIT-style license that can be
6 * found in the LICENSE file at https://angular.io/license
7 */
8import { XhrFactory } from '@angular/common';
9import { Injectable } from '@angular/core';
10import { Observable } from 'rxjs';
11import { HttpHeaders } from './headers';
12import { HttpErrorResponse, HttpEventType, HttpHeaderResponse, HttpResponse } from './response';
13const XSSI_PREFIX = /^\)\]\}',?\n/;
14/**
15 * Determine an appropriate URL for the response, by checking either
16 * XMLHttpRequest.responseURL or the X-Request-URL header.
17 */
18function getResponseUrl(xhr) {
19 if ('responseURL' in xhr && xhr.responseURL) {
20 return xhr.responseURL;
21 }
22 if (/^X-Request-URL:/m.test(xhr.getAllResponseHeaders())) {
23 return xhr.getResponseHeader('X-Request-URL');
24 }
25 return null;
26}
27/**
28 * Uses `XMLHttpRequest` to send requests to a backend server.
29 * @see `HttpHandler`
30 * @see `JsonpClientBackend`
31 *
32 * @publicApi
33 */
34export class HttpXhrBackend {
35 constructor(xhrFactory) {
36 this.xhrFactory = xhrFactory;
37 }
38 /**
39 * Processes a request and returns a stream of response events.
40 * @param req The request object.
41 * @returns An observable of the response events.
42 */
43 handle(req) {
44 // Quick check to give a better error message when a user attempts to use
45 // HttpClient.jsonp() without installing the HttpClientJsonpModule
46 if (req.method === 'JSONP') {
47 throw new Error(`Attempted to construct Jsonp request without HttpClientJsonpModule installed.`);
48 }
49 // Everything happens on Observable subscription.
50 return new Observable((observer) => {
51 // Start by setting up the XHR object with request method, URL, and withCredentials flag.
52 const xhr = this.xhrFactory.build();
53 xhr.open(req.method, req.urlWithParams);
54 if (!!req.withCredentials) {
55 xhr.withCredentials = true;
56 }
57 // Add all the requested headers.
58 req.headers.forEach((name, values) => xhr.setRequestHeader(name, values.join(',')));
59 // Add an Accept header if one isn't present already.
60 if (!req.headers.has('Accept')) {
61 xhr.setRequestHeader('Accept', 'application/json, text/plain, */*');
62 }
63 // Auto-detect the Content-Type header if one isn't present already.
64 if (!req.headers.has('Content-Type')) {
65 const detectedType = req.detectContentTypeHeader();
66 // Sometimes Content-Type detection fails.
67 if (detectedType !== null) {
68 xhr.setRequestHeader('Content-Type', detectedType);
69 }
70 }
71 // Set the responseType if one was requested.
72 if (req.responseType) {
73 const responseType = req.responseType.toLowerCase();
74 // JSON responses need to be processed as text. This is because if the server
75 // returns an XSSI-prefixed JSON response, the browser will fail to parse it,
76 // xhr.response will be null, and xhr.responseText cannot be accessed to
77 // retrieve the prefixed JSON data in order to strip the prefix. Thus, all JSON
78 // is parsed by first requesting text and then applying JSON.parse.
79 xhr.responseType = ((responseType !== 'json') ? responseType : 'text');
80 }
81 // Serialize the request body if one is present. If not, this will be set to null.
82 const reqBody = req.serializeBody();
83 // If progress events are enabled, response headers will be delivered
84 // in two events - the HttpHeaderResponse event and the full HttpResponse
85 // event. However, since response headers don't change in between these
86 // two events, it doesn't make sense to parse them twice. So headerResponse
87 // caches the data extracted from the response whenever it's first parsed,
88 // to ensure parsing isn't duplicated.
89 let headerResponse = null;
90 // partialFromXhr extracts the HttpHeaderResponse from the current XMLHttpRequest
91 // state, and memoizes it into headerResponse.
92 const partialFromXhr = () => {
93 if (headerResponse !== null) {
94 return headerResponse;
95 }
96 // Read status and normalize an IE9 bug (https://bugs.jquery.com/ticket/1450).
97 const status = xhr.status === 1223 ? 204 /* NoContent */ : xhr.status;
98 const statusText = xhr.statusText || 'OK';
99 // Parse headers from XMLHttpRequest - this step is lazy.
100 const headers = new HttpHeaders(xhr.getAllResponseHeaders());
101 // Read the response URL from the XMLHttpResponse instance and fall back on the
102 // request URL.
103 const url = getResponseUrl(xhr) || req.url;
104 // Construct the HttpHeaderResponse and memoize it.
105 headerResponse = new HttpHeaderResponse({ headers, status, statusText, url });
106 return headerResponse;
107 };
108 // Next, a few closures are defined for the various events which XMLHttpRequest can
109 // emit. This allows them to be unregistered as event listeners later.
110 // First up is the load event, which represents a response being fully available.
111 const onLoad = () => {
112 // Read response state from the memoized partial data.
113 let { headers, status, statusText, url } = partialFromXhr();
114 // The body will be read out if present.
115 let body = null;
116 if (status !== 204 /* NoContent */) {
117 // Use XMLHttpRequest.response if set, responseText otherwise.
118 body = (typeof xhr.response === 'undefined') ? xhr.responseText : xhr.response;
119 }
120 // Normalize another potential bug (this one comes from CORS).
121 if (status === 0) {
122 status = !!body ? 200 /* Ok */ : 0;
123 }
124 // ok determines whether the response will be transmitted on the event or
125 // error channel. Unsuccessful status codes (not 2xx) will always be errors,
126 // but a successful status code can still result in an error if the user
127 // asked for JSON data and the body cannot be parsed as such.
128 let ok = status >= 200 && status < 300;
129 // Check whether the body needs to be parsed as JSON (in many cases the browser
130 // will have done that already).
131 if (req.responseType === 'json' && typeof body === 'string') {
132 // Save the original body, before attempting XSSI prefix stripping.
133 const originalBody = body;
134 body = body.replace(XSSI_PREFIX, '');
135 try {
136 // Attempt the parse. If it fails, a parse error should be delivered to the user.
137 body = body !== '' ? JSON.parse(body) : null;
138 }
139 catch (error) {
140 // Since the JSON.parse failed, it's reasonable to assume this might not have been a
141 // JSON response. Restore the original body (including any XSSI prefix) to deliver
142 // a better error response.
143 body = originalBody;
144 // If this was an error request to begin with, leave it as a string, it probably
145 // just isn't JSON. Otherwise, deliver the parsing error to the user.
146 if (ok) {
147 // Even though the response status was 2xx, this is still an error.
148 ok = false;
149 // The parse error contains the text of the body that failed to parse.
150 body = { error, text: body };
151 }
152 }
153 }
154 if (ok) {
155 // A successful response is delivered on the event stream.
156 observer.next(new HttpResponse({
157 body,
158 headers,
159 status,
160 statusText,
161 url: url || undefined,
162 }));
163 // The full body has been received and delivered, no further events
164 // are possible. This request is complete.
165 observer.complete();
166 }
167 else {
168 // An unsuccessful request is delivered on the error channel.
169 observer.error(new HttpErrorResponse({
170 // The error in this case is the response body (error from the server).
171 error: body,
172 headers,
173 status,
174 statusText,
175 url: url || undefined,
176 }));
177 }
178 };
179 // The onError callback is called when something goes wrong at the network level.
180 // Connection timeout, DNS error, offline, etc. These are actual errors, and are
181 // transmitted on the error channel.
182 const onError = (error) => {
183 const { url } = partialFromXhr();
184 const res = new HttpErrorResponse({
185 error,
186 status: xhr.status || 0,
187 statusText: xhr.statusText || 'Unknown Error',
188 url: url || undefined,
189 });
190 observer.error(res);
191 };
192 // The sentHeaders flag tracks whether the HttpResponseHeaders event
193 // has been sent on the stream. This is necessary to track if progress
194 // is enabled since the event will be sent on only the first download
195 // progerss event.
196 let sentHeaders = false;
197 // The download progress event handler, which is only registered if
198 // progress events are enabled.
199 const onDownProgress = (event) => {
200 // Send the HttpResponseHeaders event if it hasn't been sent already.
201 if (!sentHeaders) {
202 observer.next(partialFromXhr());
203 sentHeaders = true;
204 }
205 // Start building the download progress event to deliver on the response
206 // event stream.
207 let progressEvent = {
208 type: HttpEventType.DownloadProgress,
209 loaded: event.loaded,
210 };
211 // Set the total number of bytes in the event if it's available.
212 if (event.lengthComputable) {
213 progressEvent.total = event.total;
214 }
215 // If the request was for text content and a partial response is
216 // available on XMLHttpRequest, include it in the progress event
217 // to allow for streaming reads.
218 if (req.responseType === 'text' && !!xhr.responseText) {
219 progressEvent.partialText = xhr.responseText;
220 }
221 // Finally, fire the event.
222 observer.next(progressEvent);
223 };
224 // The upload progress event handler, which is only registered if
225 // progress events are enabled.
226 const onUpProgress = (event) => {
227 // Upload progress events are simpler. Begin building the progress
228 // event.
229 let progress = {
230 type: HttpEventType.UploadProgress,
231 loaded: event.loaded,
232 };
233 // If the total number of bytes being uploaded is available, include
234 // it.
235 if (event.lengthComputable) {
236 progress.total = event.total;
237 }
238 // Send the event.
239 observer.next(progress);
240 };
241 // By default, register for load and error events.
242 xhr.addEventListener('load', onLoad);
243 xhr.addEventListener('error', onError);
244 xhr.addEventListener('timeout', onError);
245 xhr.addEventListener('abort', onError);
246 // Progress events are only enabled if requested.
247 if (req.reportProgress) {
248 // Download progress is always enabled if requested.
249 xhr.addEventListener('progress', onDownProgress);
250 // Upload progress depends on whether there is a body to upload.
251 if (reqBody !== null && xhr.upload) {
252 xhr.upload.addEventListener('progress', onUpProgress);
253 }
254 }
255 // Fire the request, and notify the event stream that it was fired.
256 xhr.send(reqBody);
257 observer.next({ type: HttpEventType.Sent });
258 // This is the return from the Observable function, which is the
259 // request cancellation handler.
260 return () => {
261 // On a cancellation, remove all registered event listeners.
262 xhr.removeEventListener('error', onError);
263 xhr.removeEventListener('abort', onError);
264 xhr.removeEventListener('load', onLoad);
265 xhr.removeEventListener('timeout', onError);
266 if (req.reportProgress) {
267 xhr.removeEventListener('progress', onDownProgress);
268 if (reqBody !== null && xhr.upload) {
269 xhr.upload.removeEventListener('progress', onUpProgress);
270 }
271 }
272 // Finally, abort the in-flight request.
273 if (xhr.readyState !== xhr.DONE) {
274 xhr.abort();
275 }
276 };
277 });
278 }
279}
280HttpXhrBackend.decorators = [
281 { type: Injectable }
282];
283HttpXhrBackend.ctorParameters = () => [
284 { type: XhrFactory }
285];
286//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"xhr.js","sourceRoot":"","sources":["../../../../../../../packages/common/http/src/xhr.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,EAAC,UAAU,EAAC,MAAM,iBAAiB,CAAC;AAC3C,OAAO,EAAC,UAAU,EAAC,MAAM,eAAe,CAAC;AACzC,OAAO,EAAC,UAAU,EAAW,MAAM,MAAM,CAAC;AAG1C,OAAO,EAAC,WAAW,EAAC,MAAM,WAAW,CAAC;AAEtC,OAAO,EAA4B,iBAAiB,EAAa,aAAa,EAAE,kBAAkB,EAAsB,YAAY,EAA0C,MAAM,YAAY,CAAC;AAGjM,MAAM,WAAW,GAAG,cAAc,CAAC;AAEnC;;;GAGG;AACH,SAAS,cAAc,CAAC,GAAQ;IAC9B,IAAI,aAAa,IAAI,GAAG,IAAI,GAAG,CAAC,WAAW,EAAE;QAC3C,OAAO,GAAG,CAAC,WAAW,CAAC;KACxB;IACD,IAAI,kBAAkB,CAAC,IAAI,CAAC,GAAG,CAAC,qBAAqB,EAAE,CAAC,EAAE;QACxD,OAAO,GAAG,CAAC,iBAAiB,CAAC,eAAe,CAAC,CAAC;KAC/C;IACD,OAAO,IAAI,CAAC;AACd,CAAC;AAED;;;;;;GAMG;AAEH,MAAM,OAAO,cAAc;IACzB,YAAoB,UAAsB;QAAtB,eAAU,GAAV,UAAU,CAAY;IAAG,CAAC;IAE9C;;;;OAIG;IACH,MAAM,CAAC,GAAqB;QAC1B,yEAAyE;QACzE,kEAAkE;QAClE,IAAI,GAAG,CAAC,MAAM,KAAK,OAAO,EAAE;YAC1B,MAAM,IAAI,KAAK,CACX,+EAA+E,CAAC,CAAC;SACtF;QAED,iDAAiD;QACjD,OAAO,IAAI,UAAU,CAAC,CAAC,QAAkC,EAAE,EAAE;YAC3D,yFAAyF;YACzF,MAAM,GAAG,GAAG,IAAI,CAAC,UAAU,CAAC,KAAK,EAAE,CAAC;YACpC,GAAG,CAAC,IAAI,CAAC,GAAG,CAAC,MAAM,EAAE,GAAG,CAAC,aAAa,CAAC,CAAC;YACxC,IAAI,CAAC,CAAC,GAAG,CAAC,eAAe,EAAE;gBACzB,GAAG,CAAC,eAAe,GAAG,IAAI,CAAC;aAC5B;YAED,iCAAiC;YACjC,GAAG,CAAC,OAAO,CAAC,OAAO,CAAC,CAAC,IAAI,EAAE,MAAM,EAAE,EAAE,CAAC,GAAG,CAAC,gBAAgB,CAAC,IAAI,EAAE,MAAM,CAAC,IAAI,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;YAEpF,qDAAqD;YACrD,IAAI,CAAC,GAAG,CAAC,OAAO,CAAC,GAAG,CAAC,QAAQ,CAAC,EAAE;gBAC9B,GAAG,CAAC,gBAAgB,CAAC,QAAQ,EAAE,mCAAmC,CAAC,CAAC;aACrE;YAED,oEAAoE;YACpE,IAAI,CAAC,GAAG,CAAC,OAAO,CAAC,GAAG,CAAC,cAAc,CAAC,EAAE;gBACpC,MAAM,YAAY,GAAG,GAAG,CAAC,uBAAuB,EAAE,CAAC;gBACnD,0CAA0C;gBAC1C,IAAI,YAAY,KAAK,IAAI,EAAE;oBACzB,GAAG,CAAC,gBAAgB,CAAC,cAAc,EAAE,YAAY,CAAC,CAAC;iBACpD;aACF;YAED,6CAA6C;YAC7C,IAAI,GAAG,CAAC,YAAY,EAAE;gBACpB,MAAM,YAAY,GAAG,GAAG,CAAC,YAAY,CAAC,WAAW,EAAE,CAAC;gBAEpD,6EAA6E;gBAC7E,6EAA6E;gBAC7E,wEAAwE;gBACxE,+EAA+E;gBAC/E,mEAAmE;gBACnE,GAAG,CAAC,YAAY,GAAG,CAAC,CAAC,YAAY,KAAK,MAAM,CAAC,CAAC,CAAC,CAAC,YAAY,CAAC,CAAC,CAAC,MAAM,CAAQ,CAAC;aAC/E;YAED,kFAAkF;YAClF,MAAM,OAAO,GAAG,GAAG,CAAC,aAAa,EAAE,CAAC;YAEpC,qEAAqE;YACrE,yEAAyE;YACzE,uEAAuE;YACvE,2EAA2E;YAC3E,0EAA0E;YAC1E,sCAAsC;YACtC,IAAI,cAAc,GAA4B,IAAI,CAAC;YAEnD,iFAAiF;YACjF,8CAA8C;YAC9C,MAAM,cAAc,GAAG,GAAuB,EAAE;gBAC9C,IAAI,cAAc,KAAK,IAAI,EAAE;oBAC3B,OAAO,cAAc,CAAC;iBACvB;gBAED,8EAA8E;gBAC9E,MAAM,MAAM,GAAW,GAAG,CAAC,MAAM,KAAK,IAAI,CAAC,CAAC,qBAA0B,CAAC,CAAC,GAAG,CAAC,MAAM,CAAC;gBACnF,MAAM,UAAU,GAAG,GAAG,CAAC,UAAU,IAAI,IAAI,CAAC;gBAE1C,yDAAyD;gBACzD,MAAM,OAAO,GAAG,IAAI,WAAW,CAAC,GAAG,CAAC,qBAAqB,EAAE,CAAC,CAAC;gBAE7D,+EAA+E;gBAC/E,eAAe;gBACf,MAAM,GAAG,GAAG,cAAc,CAAC,GAAG,CAAC,IAAI,GAAG,CAAC,GAAG,CAAC;gBAE3C,mDAAmD;gBACnD,cAAc,GAAG,IAAI,kBAAkB,CAAC,EAAC,OAAO,EAAE,MAAM,EAAE,UAAU,EAAE,GAAG,EAAC,CAAC,CAAC;gBAC5E,OAAO,cAAc,CAAC;YACxB,CAAC,CAAC;YAEF,mFAAmF;YACnF,sEAAsE;YAEtE,iFAAiF;YACjF,MAAM,MAAM,GAAG,GAAG,EAAE;gBAClB,sDAAsD;gBACtD,IAAI,EAAC,OAAO,EAAE,MAAM,EAAE,UAAU,EAAE,GAAG,EAAC,GAAG,cAAc,EAAE,CAAC;gBAE1D,wCAAwC;gBACxC,IAAI,IAAI,GAAa,IAAI,CAAC;gBAE1B,IAAI,MAAM,wBAA6B,EAAE;oBACvC,8DAA8D;oBAC9D,IAAI,GAAG,CAAC,OAAO,GAAG,CAAC,QAAQ,KAAK,WAAW,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,CAAC,GAAG,CAAC,QAAQ,CAAC;iBAChF;gBAED,8DAA8D;gBAC9D,IAAI,MAAM,KAAK,CAAC,EAAE;oBAChB,MAAM,GAAG,CAAC,CAAC,IAAI,CAAC,CAAC,cAAmB,CAAC,CAAC,CAAC,CAAC;iBACzC;gBAED,yEAAyE;gBACzE,4EAA4E;gBAC5E,wEAAwE;gBACxE,6DAA6D;gBAC7D,IAAI,EAAE,GAAG,MAAM,IAAI,GAAG,IAAI,MAAM,GAAG,GAAG,CAAC;gBAEvC,+EAA+E;gBAC/E,gCAAgC;gBAChC,IAAI,GAAG,CAAC,YAAY,KAAK,MAAM,IAAI,OAAO,IAAI,KAAK,QAAQ,EAAE;oBAC3D,mEAAmE;oBACnE,MAAM,YAAY,GAAG,IAAI,CAAC;oBAC1B,IAAI,GAAG,IAAI,CAAC,OAAO,CAAC,WAAW,EAAE,EAAE,CAAC,CAAC;oBACrC,IAAI;wBACF,iFAAiF;wBACjF,IAAI,GAAG,IAAI,KAAK,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC;qBAC9C;oBAAC,OAAO,KAAK,EAAE;wBACd,oFAAoF;wBACpF,kFAAkF;wBAClF,2BAA2B;wBAC3B,IAAI,GAAG,YAAY,CAAC;wBAEpB,gFAAgF;wBAChF,qEAAqE;wBACrE,IAAI,EAAE,EAAE;4BACN,mEAAmE;4BACnE,EAAE,GAAG,KAAK,CAAC;4BACX,sEAAsE;4BACtE,IAAI,GAAG,EAAC,KAAK,EAAE,IAAI,EAAE,IAAI,EAAuB,CAAC;yBAClD;qBACF;iBACF;gBAED,IAAI,EAAE,EAAE;oBACN,0DAA0D;oBAC1D,QAAQ,CAAC,IAAI,CAAC,IAAI,YAAY,CAAC;wBAC7B,IAAI;wBACJ,OAAO;wBACP,MAAM;wBACN,UAAU;wBACV,GAAG,EAAE,GAAG,IAAI,SAAS;qBACtB,CAAC,CAAC,CAAC;oBACJ,mEAAmE;oBACnE,0CAA0C;oBAC1C,QAAQ,CAAC,QAAQ,EAAE,CAAC;iBACrB;qBAAM;oBACL,6DAA6D;oBAC7D,QAAQ,CAAC,KAAK,CAAC,IAAI,iBAAiB,CAAC;wBACnC,uEAAuE;wBACvE,KAAK,EAAE,IAAI;wBACX,OAAO;wBACP,MAAM;wBACN,UAAU;wBACV,GAAG,EAAE,GAAG,IAAI,SAAS;qBACtB,CAAC,CAAC,CAAC;iBACL;YACH,CAAC,CAAC;YAEF,iFAAiF;YACjF,gFAAgF;YAChF,oCAAoC;YACpC,MAAM,OAAO,GAAG,CAAC,KAAoB,EAAE,EAAE;gBACvC,MAAM,EAAC,GAAG,EAAC,GAAG,cAAc,EAAE,CAAC;gBAC/B,MAAM,GAAG,GAAG,IAAI,iBAAiB,CAAC;oBAChC,KAAK;oBACL,MAAM,EAAE,GAAG,CAAC,MAAM,IAAI,CAAC;oBACvB,UAAU,EAAE,GAAG,CAAC,UAAU,IAAI,eAAe;oBAC7C,GAAG,EAAE,GAAG,IAAI,SAAS;iBACtB,CAAC,CAAC;gBACH,QAAQ,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC;YACtB,CAAC,CAAC;YAEF,oEAAoE;YACpE,sEAAsE;YACtE,qEAAqE;YACrE,kBAAkB;YAClB,IAAI,WAAW,GAAG,KAAK,CAAC;YAExB,mEAAmE;YACnE,+BAA+B;YAC/B,MAAM,cAAc,GAAG,CAAC,KAAoB,EAAE,EAAE;gBAC9C,qEAAqE;gBACrE,IAAI,CAAC,WAAW,EAAE;oBAChB,QAAQ,CAAC,IAAI,CAAC,cAAc,EAAE,CAAC,CAAC;oBAChC,WAAW,GAAG,IAAI,CAAC;iBACpB;gBAED,wEAAwE;gBACxE,gBAAgB;gBAChB,IAAI,aAAa,GAA8B;oBAC7C,IAAI,EAAE,aAAa,CAAC,gBAAgB;oBACpC,MAAM,EAAE,KAAK,CAAC,MAAM;iBACrB,CAAC;gBAEF,gEAAgE;gBAChE,IAAI,KAAK,CAAC,gBAAgB,EAAE;oBAC1B,aAAa,CAAC,KAAK,GAAG,KAAK,CAAC,KAAK,CAAC;iBACnC;gBAED,gEAAgE;gBAChE,gEAAgE;gBAChE,gCAAgC;gBAChC,IAAI,GAAG,CAAC,YAAY,KAAK,MAAM,IAAI,CAAC,CAAC,GAAG,CAAC,YAAY,EAAE;oBACrD,aAAa,CAAC,WAAW,GAAG,GAAG,CAAC,YAAY,CAAC;iBAC9C;gBAED,2BAA2B;gBAC3B,QAAQ,CAAC,IAAI,CAAC,aAAa,CAAC,CAAC;YAC/B,CAAC,CAAC;YAEF,iEAAiE;YACjE,+BAA+B;YAC/B,MAAM,YAAY,GAAG,CAAC,KAAoB,EAAE,EAAE;gBAC5C,kEAAkE;gBAClE,SAAS;gBACT,IAAI,QAAQ,GAA4B;oBACtC,IAAI,EAAE,aAAa,CAAC,cAAc;oBAClC,MAAM,EAAE,KAAK,CAAC,MAAM;iBACrB,CAAC;gBAEF,oEAAoE;gBACpE,MAAM;gBACN,IAAI,KAAK,CAAC,gBAAgB,EAAE;oBAC1B,QAAQ,CAAC,KAAK,GAAG,KAAK,CAAC,KAAK,CAAC;iBAC9B;gBAED,kBAAkB;gBAClB,QAAQ,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;YAC1B,CAAC,CAAC;YAEF,kDAAkD;YAClD,GAAG,CAAC,gBAAgB,CAAC,MAAM,EAAE,MAAM,CAAC,CAAC;YACrC,GAAG,CAAC,gBAAgB,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;YACvC,GAAG,CAAC,gBAAgB,CAAC,SAAS,EAAE,OAAO,CAAC,CAAC;YACzC,GAAG,CAAC,gBAAgB,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;YAEvC,iDAAiD;YACjD,IAAI,GAAG,CAAC,cAAc,EAAE;gBACtB,oDAAoD;gBACpD,GAAG,CAAC,gBAAgB,CAAC,UAAU,EAAE,cAAc,CAAC,CAAC;gBAEjD,gEAAgE;gBAChE,IAAI,OAAO,KAAK,IAAI,IAAI,GAAG,CAAC,MAAM,EAAE;oBAClC,GAAG,CAAC,MAAM,CAAC,gBAAgB,CAAC,UAAU,EAAE,YAAY,CAAC,CAAC;iBACvD;aACF;YAED,mEAAmE;YACnE,GAAG,CAAC,IAAI,CAAC,OAAQ,CAAC,CAAC;YACnB,QAAQ,CAAC,IAAI,CAAC,EAAC,IAAI,EAAE,aAAa,CAAC,IAAI,EAAC,CAAC,CAAC;YAE1C,gEAAgE;YAChE,gCAAgC;YAChC,OAAO,GAAG,EAAE;gBACV,4DAA4D;gBAC5D,GAAG,CAAC,mBAAmB,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;gBAC1C,GAAG,CAAC,mBAAmB,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;gBAC1C,GAAG,CAAC,mBAAmB,CAAC,MAAM,EAAE,MAAM,CAAC,CAAC;gBACxC,GAAG,CAAC,mBAAmB,CAAC,SAAS,EAAE,OAAO,CAAC,CAAC;gBAC5C,IAAI,GAAG,CAAC,cAAc,EAAE;oBACtB,GAAG,CAAC,mBAAmB,CAAC,UAAU,EAAE,cAAc,CAAC,CAAC;oBACpD,IAAI,OAAO,KAAK,IAAI,IAAI,GAAG,CAAC,MAAM,EAAE;wBAClC,GAAG,CAAC,MAAM,CAAC,mBAAmB,CAAC,UAAU,EAAE,YAAY,CAAC,CAAC;qBAC1D;iBACF;gBAED,wCAAwC;gBACxC,IAAI,GAAG,CAAC,UAAU,KAAK,GAAG,CAAC,IAAI,EAAE;oBAC/B,GAAG,CAAC,KAAK,EAAE,CAAC;iBACb;YACH,CAAC,CAAC;QACJ,CAAC,CAAC,CAAC;IACL,CAAC;;;YAzRF,UAAU;;;YAjCH,UAAU","sourcesContent":["/**\n * @license\n * Copyright Google LLC 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 {XhrFactory} from '@angular/common';\nimport {Injectable} from '@angular/core';\nimport {Observable, Observer} from 'rxjs';\n\nimport {HttpBackend} from './backend';\nimport {HttpHeaders} from './headers';\nimport {HttpRequest} from './request';\nimport {HttpDownloadProgressEvent, HttpErrorResponse, HttpEvent, HttpEventType, HttpHeaderResponse, HttpJsonParseError, HttpResponse, HttpStatusCode, HttpUploadProgressEvent} from './response';\n\n\nconst XSSI_PREFIX = /^\\)\\]\\}',?\\n/;\n\n/**\n * Determine an appropriate URL for the response, by checking either\n * XMLHttpRequest.responseURL or the X-Request-URL header.\n */\nfunction getResponseUrl(xhr: any): string|null {\n  if ('responseURL' in xhr && xhr.responseURL) {\n    return xhr.responseURL;\n  }\n  if (/^X-Request-URL:/m.test(xhr.getAllResponseHeaders())) {\n    return xhr.getResponseHeader('X-Request-URL');\n  }\n  return null;\n}\n\n/**\n * Uses `XMLHttpRequest` to send requests to a backend server.\n * @see `HttpHandler`\n * @see `JsonpClientBackend`\n *\n * @publicApi\n */\n@Injectable()\nexport class HttpXhrBackend implements HttpBackend {\n  constructor(private xhrFactory: XhrFactory) {}\n\n  /**\n   * Processes a request and returns a stream of response events.\n   * @param req The request object.\n   * @returns An observable of the response events.\n   */\n  handle(req: HttpRequest<any>): Observable<HttpEvent<any>> {\n    // Quick check to give a better error message when a user attempts to use\n    // HttpClient.jsonp() without installing the HttpClientJsonpModule\n    if (req.method === 'JSONP') {\n      throw new Error(\n          `Attempted to construct Jsonp request without HttpClientJsonpModule installed.`);\n    }\n\n    // Everything happens on Observable subscription.\n    return new Observable((observer: Observer<HttpEvent<any>>) => {\n      // Start by setting up the XHR object with request method, URL, and withCredentials flag.\n      const xhr = this.xhrFactory.build();\n      xhr.open(req.method, req.urlWithParams);\n      if (!!req.withCredentials) {\n        xhr.withCredentials = true;\n      }\n\n      // Add all the requested headers.\n      req.headers.forEach((name, values) => xhr.setRequestHeader(name, values.join(',')));\n\n      // Add an Accept header if one isn't present already.\n      if (!req.headers.has('Accept')) {\n        xhr.setRequestHeader('Accept', 'application/json, text/plain, */*');\n      }\n\n      // Auto-detect the Content-Type header if one isn't present already.\n      if (!req.headers.has('Content-Type')) {\n        const detectedType = req.detectContentTypeHeader();\n        // Sometimes Content-Type detection fails.\n        if (detectedType !== null) {\n          xhr.setRequestHeader('Content-Type', detectedType);\n        }\n      }\n\n      // Set the responseType if one was requested.\n      if (req.responseType) {\n        const responseType = req.responseType.toLowerCase();\n\n        // JSON responses need to be processed as text. This is because if the server\n        // returns an XSSI-prefixed JSON response, the browser will fail to parse it,\n        // xhr.response will be null, and xhr.responseText cannot be accessed to\n        // retrieve the prefixed JSON data in order to strip the prefix. Thus, all JSON\n        // is parsed by first requesting text and then applying JSON.parse.\n        xhr.responseType = ((responseType !== 'json') ? responseType : 'text') as any;\n      }\n\n      // Serialize the request body if one is present. If not, this will be set to null.\n      const reqBody = req.serializeBody();\n\n      // If progress events are enabled, response headers will be delivered\n      // in two events - the HttpHeaderResponse event and the full HttpResponse\n      // event. However, since response headers don't change in between these\n      // two events, it doesn't make sense to parse them twice. So headerResponse\n      // caches the data extracted from the response whenever it's first parsed,\n      // to ensure parsing isn't duplicated.\n      let headerResponse: HttpHeaderResponse|null = null;\n\n      // partialFromXhr extracts the HttpHeaderResponse from the current XMLHttpRequest\n      // state, and memoizes it into headerResponse.\n      const partialFromXhr = (): HttpHeaderResponse => {\n        if (headerResponse !== null) {\n          return headerResponse;\n        }\n\n        // Read status and normalize an IE9 bug (https://bugs.jquery.com/ticket/1450).\n        const status: number = xhr.status === 1223 ? HttpStatusCode.NoContent : xhr.status;\n        const statusText = xhr.statusText || 'OK';\n\n        // Parse headers from XMLHttpRequest - this step is lazy.\n        const headers = new HttpHeaders(xhr.getAllResponseHeaders());\n\n        // Read the response URL from the XMLHttpResponse instance and fall back on the\n        // request URL.\n        const url = getResponseUrl(xhr) || req.url;\n\n        // Construct the HttpHeaderResponse and memoize it.\n        headerResponse = new HttpHeaderResponse({headers, status, statusText, url});\n        return headerResponse;\n      };\n\n      // Next, a few closures are defined for the various events which XMLHttpRequest can\n      // emit. This allows them to be unregistered as event listeners later.\n\n      // First up is the load event, which represents a response being fully available.\n      const onLoad = () => {\n        // Read response state from the memoized partial data.\n        let {headers, status, statusText, url} = partialFromXhr();\n\n        // The body will be read out if present.\n        let body: any|null = null;\n\n        if (status !== HttpStatusCode.NoContent) {\n          // Use XMLHttpRequest.response if set, responseText otherwise.\n          body = (typeof xhr.response === 'undefined') ? xhr.responseText : xhr.response;\n        }\n\n        // Normalize another potential bug (this one comes from CORS).\n        if (status === 0) {\n          status = !!body ? HttpStatusCode.Ok : 0;\n        }\n\n        // ok determines whether the response will be transmitted on the event or\n        // error channel. Unsuccessful status codes (not 2xx) will always be errors,\n        // but a successful status code can still result in an error if the user\n        // asked for JSON data and the body cannot be parsed as such.\n        let ok = status >= 200 && status < 300;\n\n        // Check whether the body needs to be parsed as JSON (in many cases the browser\n        // will have done that already).\n        if (req.responseType === 'json' && typeof body === 'string') {\n          // Save the original body, before attempting XSSI prefix stripping.\n          const originalBody = body;\n          body = body.replace(XSSI_PREFIX, '');\n          try {\n            // Attempt the parse. If it fails, a parse error should be delivered to the user.\n            body = body !== '' ? JSON.parse(body) : null;\n          } catch (error) {\n            // Since the JSON.parse failed, it's reasonable to assume this might not have been a\n            // JSON response. Restore the original body (including any XSSI prefix) to deliver\n            // a better error response.\n            body = originalBody;\n\n            // If this was an error request to begin with, leave it as a string, it probably\n            // just isn't JSON. Otherwise, deliver the parsing error to the user.\n            if (ok) {\n              // Even though the response status was 2xx, this is still an error.\n              ok = false;\n              // The parse error contains the text of the body that failed to parse.\n              body = {error, text: body} as HttpJsonParseError;\n            }\n          }\n        }\n\n        if (ok) {\n          // A successful response is delivered on the event stream.\n          observer.next(new HttpResponse({\n            body,\n            headers,\n            status,\n            statusText,\n            url: url || undefined,\n          }));\n          // The full body has been received and delivered, no further events\n          // are possible. This request is complete.\n          observer.complete();\n        } else {\n          // An unsuccessful request is delivered on the error channel.\n          observer.error(new HttpErrorResponse({\n            // The error in this case is the response body (error from the server).\n            error: body,\n            headers,\n            status,\n            statusText,\n            url: url || undefined,\n          }));\n        }\n      };\n\n      // The onError callback is called when something goes wrong at the network level.\n      // Connection timeout, DNS error, offline, etc. These are actual errors, and are\n      // transmitted on the error channel.\n      const onError = (error: ProgressEvent) => {\n        const {url} = partialFromXhr();\n        const res = new HttpErrorResponse({\n          error,\n          status: xhr.status || 0,\n          statusText: xhr.statusText || 'Unknown Error',\n          url: url || undefined,\n        });\n        observer.error(res);\n      };\n\n      // The sentHeaders flag tracks whether the HttpResponseHeaders event\n      // has been sent on the stream. This is necessary to track if progress\n      // is enabled since the event will be sent on only the first download\n      // progerss event.\n      let sentHeaders = false;\n\n      // The download progress event handler, which is only registered if\n      // progress events are enabled.\n      const onDownProgress = (event: ProgressEvent) => {\n        // Send the HttpResponseHeaders event if it hasn't been sent already.\n        if (!sentHeaders) {\n          observer.next(partialFromXhr());\n          sentHeaders = true;\n        }\n\n        // Start building the download progress event to deliver on the response\n        // event stream.\n        let progressEvent: HttpDownloadProgressEvent = {\n          type: HttpEventType.DownloadProgress,\n          loaded: event.loaded,\n        };\n\n        // Set the total number of bytes in the event if it's available.\n        if (event.lengthComputable) {\n          progressEvent.total = event.total;\n        }\n\n        // If the request was for text content and a partial response is\n        // available on XMLHttpRequest, include it in the progress event\n        // to allow for streaming reads.\n        if (req.responseType === 'text' && !!xhr.responseText) {\n          progressEvent.partialText = xhr.responseText;\n        }\n\n        // Finally, fire the event.\n        observer.next(progressEvent);\n      };\n\n      // The upload progress event handler, which is only registered if\n      // progress events are enabled.\n      const onUpProgress = (event: ProgressEvent) => {\n        // Upload progress events are simpler. Begin building the progress\n        // event.\n        let progress: HttpUploadProgressEvent = {\n          type: HttpEventType.UploadProgress,\n          loaded: event.loaded,\n        };\n\n        // If the total number of bytes being uploaded is available, include\n        // it.\n        if (event.lengthComputable) {\n          progress.total = event.total;\n        }\n\n        // Send the event.\n        observer.next(progress);\n      };\n\n      // By default, register for load and error events.\n      xhr.addEventListener('load', onLoad);\n      xhr.addEventListener('error', onError);\n      xhr.addEventListener('timeout', onError);\n      xhr.addEventListener('abort', onError);\n\n      // Progress events are only enabled if requested.\n      if (req.reportProgress) {\n        // Download progress is always enabled if requested.\n        xhr.addEventListener('progress', onDownProgress);\n\n        // Upload progress depends on whether there is a body to upload.\n        if (reqBody !== null && xhr.upload) {\n          xhr.upload.addEventListener('progress', onUpProgress);\n        }\n      }\n\n      // Fire the request, and notify the event stream that it was fired.\n      xhr.send(reqBody!);\n      observer.next({type: HttpEventType.Sent});\n\n      // This is the return from the Observable function, which is the\n      // request cancellation handler.\n      return () => {\n        // On a cancellation, remove all registered event listeners.\n        xhr.removeEventListener('error', onError);\n        xhr.removeEventListener('abort', onError);\n        xhr.removeEventListener('load', onLoad);\n        xhr.removeEventListener('timeout', onError);\n        if (req.reportProgress) {\n          xhr.removeEventListener('progress', onDownProgress);\n          if (reqBody !== null && xhr.upload) {\n            xhr.upload.removeEventListener('progress', onUpProgress);\n          }\n        }\n\n        // Finally, abort the in-flight request.\n        if (xhr.readyState !== xhr.DONE) {\n          xhr.abort();\n        }\n      };\n    });\n  }\n}\n"]}
Note: See TracBrowser for help on using the repository browser.