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comparison: netwerk/protocol/viewsource/nsViewSourceChannel.cpp

netwerk/protocol/viewsource/nsViewSourceChannel.cpp

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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /* vim:set ts=4 sw=4 sts=4 et: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #include "nsViewSourceChannel.h"
8 #include "nsIIOService.h"
9 #include "nsMimeTypes.h"
10 #include "nsNetUtil.h"
11 #include "nsIHttpHeaderVisitor.h"
12
13 NS_IMPL_ADDREF(nsViewSourceChannel)
14 NS_IMPL_RELEASE(nsViewSourceChannel)
15 /*
16 This QI uses NS_INTERFACE_MAP_ENTRY_CONDITIONAL to check for
17 non-nullness of mHttpChannel, mCachingChannel, and mUploadChannel.
18 */
19 NS_INTERFACE_MAP_BEGIN(nsViewSourceChannel)
20 NS_INTERFACE_MAP_ENTRY(nsIViewSourceChannel)
21 NS_INTERFACE_MAP_ENTRY(nsIStreamListener)
22 NS_INTERFACE_MAP_ENTRY(nsIRequestObserver)
23 NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIHttpChannel, mHttpChannel)
24 NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIHttpChannelInternal, mHttpChannelInternal)
25 NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsICachingChannel, mCachingChannel)
26 NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIApplicationCacheChannel, mApplicationCacheChannel)
27 NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIUploadChannel, mUploadChannel)
28 NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIRequest, nsIViewSourceChannel)
29 NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIChannel, nsIViewSourceChannel)
30 NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIViewSourceChannel)
31 NS_INTERFACE_MAP_END
32
33 nsresult
34 nsViewSourceChannel::Init(nsIURI* uri)
35 {
36 mOriginalURI = uri;
37
38 nsAutoCString path;
39 nsresult rv = uri->GetPath(path);
40 if (NS_FAILED(rv))
41 return rv;
42
43 nsCOMPtr<nsIIOService> pService(do_GetIOService(&rv));
44 if (NS_FAILED(rv)) return rv;
45
46 nsAutoCString scheme;
47 rv = pService->ExtractScheme(path, scheme);
48 if (NS_FAILED(rv))
49 return rv;
50
51 // prevent viewing source of javascript URIs (see bug 204779)
52 if (scheme.LowerCaseEqualsLiteral("javascript")) {
53 NS_WARNING("blocking view-source:javascript:");
54 return NS_ERROR_INVALID_ARG;
55 }
56
57 rv = pService->NewChannel(path, nullptr, nullptr, getter_AddRefs(mChannel));
58 if (NS_FAILED(rv))
59 return rv;
60
61 mIsSrcdocChannel = false;
62
63 mChannel->SetOriginalURI(mOriginalURI);
64 mHttpChannel = do_QueryInterface(mChannel);
65 mHttpChannelInternal = do_QueryInterface(mChannel);
66 mCachingChannel = do_QueryInterface(mChannel);
67 mApplicationCacheChannel = do_QueryInterface(mChannel);
68 mUploadChannel = do_QueryInterface(mChannel);
69
70 return NS_OK;
71 }
72
73 nsresult
74 nsViewSourceChannel::InitSrcdoc(nsIURI* aURI, const nsAString &aSrcdoc,
75 nsIURI* aBaseURI)
76 {
77
78 nsresult rv;
79
80 nsCOMPtr<nsIURI> inStreamURI;
81 // Need to strip view-source: from the URI. Hardcoded to
82 // about:srcdoc as this is the only permissible URI for srcdoc
83 // loads
84 rv = NS_NewURI(getter_AddRefs(inStreamURI),
85 NS_LITERAL_STRING("about:srcdoc"));
86 NS_ENSURE_SUCCESS(rv, rv);
87
88 rv = NS_NewInputStreamChannel(getter_AddRefs(mChannel), inStreamURI,
89 aSrcdoc, NS_LITERAL_CSTRING("text/html"),
90 true);
91
92 NS_ENSURE_SUCCESS(rv, rv);
93 mOriginalURI = aURI;
94 mIsSrcdocChannel = true;
95 nsCOMPtr<nsIInputStreamChannel> isc = do_QueryInterface(mChannel);
96 MOZ_ASSERT(isc);
97 isc->SetBaseURI(aBaseURI);
98
99 mChannel->SetOriginalURI(mOriginalURI);
100 mHttpChannel = do_QueryInterface(mChannel);
101 mHttpChannelInternal = do_QueryInterface(mChannel);
102 mCachingChannel = do_QueryInterface(mChannel);
103 mApplicationCacheChannel = do_QueryInterface(mChannel);
104 mUploadChannel = do_QueryInterface(mChannel);
105 return NS_OK;
106 }
107
108 ////////////////////////////////////////////////////////////////////////////////
109 // nsIRequest methods:
110
111 NS_IMETHODIMP
112 nsViewSourceChannel::GetName(nsACString &result)
113 {
114 return NS_ERROR_NOT_IMPLEMENTED;
115 }
116
117 NS_IMETHODIMP
118 nsViewSourceChannel::GetProxyURI(nsIURI** proxyURI)
119 {
120 return NS_ERROR_NOT_IMPLEMENTED;
121 }
122
123 NS_IMETHODIMP
124 nsViewSourceChannel::IsPending(bool *result)
125 {
126 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
127
128 return mChannel->IsPending(result);
129 }
130
131 NS_IMETHODIMP
132 nsViewSourceChannel::GetStatus(nsresult *status)
133 {
134 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
135
136 return mChannel->GetStatus(status);
137 }
138
139 NS_IMETHODIMP
140 nsViewSourceChannel::Cancel(nsresult status)
141 {
142 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
143
144 return mChannel->Cancel(status);
145 }
146
147 NS_IMETHODIMP
148 nsViewSourceChannel::Suspend(void)
149 {
150 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
151
152 return mChannel->Suspend();
153 }
154
155 NS_IMETHODIMP
156 nsViewSourceChannel::Resume(void)
157 {
158 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
159
160 return mChannel->Resume();
161 }
162
163 ////////////////////////////////////////////////////////////////////////////////
164 // nsIChannel methods:
165
166 NS_IMETHODIMP
167 nsViewSourceChannel::GetOriginalURI(nsIURI* *aURI)
168 {
169 NS_ASSERTION(aURI, "Null out param!");
170 *aURI = mOriginalURI;
171 NS_ADDREF(*aURI);
172 return NS_OK;
173 }
174
175 NS_IMETHODIMP
176 nsViewSourceChannel::SetOriginalURI(nsIURI* aURI)
177 {
178 NS_ENSURE_ARG_POINTER(aURI);
179 mOriginalURI = aURI;
180 return NS_OK;
181 }
182
183 NS_IMETHODIMP
184 nsViewSourceChannel::GetURI(nsIURI* *aURI)
185 {
186 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
187
188 nsCOMPtr<nsIURI> uri;
189 nsresult rv = mChannel->GetURI(getter_AddRefs(uri));
190 if (NS_FAILED(rv))
191 return rv;
192
193 // protect ourselves against broken channel implementations
194 if (!uri) {
195 NS_ERROR("inner channel returned NS_OK and a null URI");
196 return NS_ERROR_UNEXPECTED;
197 }
198
199 nsAutoCString spec;
200 uri->GetSpec(spec);
201
202 /* XXX Gross hack -- NS_NewURI goes into an infinite loop on
203 non-flat specs. See bug 136980 */
204 return NS_NewURI(aURI, nsAutoCString(NS_LITERAL_CSTRING("view-source:")+spec), nullptr);
205 }
206
207 NS_IMETHODIMP
208 nsViewSourceChannel::Open(nsIInputStream **_retval)
209 {
210 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
211
212 nsresult rv = mChannel->Open(_retval);
213 if (NS_SUCCEEDED(rv)) {
214 mOpened = true;
215 }
216
217 return rv;
218 }
219
220 NS_IMETHODIMP
221 nsViewSourceChannel::AsyncOpen(nsIStreamListener *aListener, nsISupports *ctxt)
222 {
223 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
224
225 mListener = aListener;
226
227 /*
228 * We want to add ourselves to the loadgroup before opening
229 * mChannel, since we want to make sure we're in the loadgroup
230 * when mChannel finishes and fires OnStopRequest()
231 */
232
233 nsCOMPtr<nsILoadGroup> loadGroup;
234 mChannel->GetLoadGroup(getter_AddRefs(loadGroup));
235 if (loadGroup)
236 loadGroup->AddRequest(static_cast<nsIViewSourceChannel*>
237 (this), nullptr);
238
239 nsresult rv = mChannel->AsyncOpen(this, ctxt);
240
241 if (NS_FAILED(rv) && loadGroup)
242 loadGroup->RemoveRequest(static_cast<nsIViewSourceChannel*>
243 (this),
244 nullptr, rv);
245
246 if (NS_SUCCEEDED(rv)) {
247 mOpened = true;
248 }
249
250 return rv;
251 }
252
253 /*
254 * Both the view source channel and mChannel are added to the
255 * loadgroup. There should never be more than one request in the
256 * loadgroup that has LOAD_DOCUMENT_URI set. The one that has this
257 * flag set is the request whose URI is used to refetch the document,
258 * so it better be the viewsource channel.
259 *
260 * Therefore, we need to make sure that
261 * 1) The load flags on mChannel _never_ include LOAD_DOCUMENT_URI
262 * 2) The load flags on |this| include LOAD_DOCUMENT_URI when it was
263 * set via SetLoadFlags (mIsDocument keeps track of this flag).
264 */
265
266 NS_IMETHODIMP
267 nsViewSourceChannel::GetLoadFlags(uint32_t *aLoadFlags)
268 {
269 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
270
271 nsresult rv = mChannel->GetLoadFlags(aLoadFlags);
272 if (NS_FAILED(rv))
273 return rv;
274
275 // This should actually be just LOAD_DOCUMENT_URI but the win32 compiler
276 // fails to deal due to amiguous inheritance. nsIChannel::LOAD_DOCUMENT_URI
277 // also fails; the Win32 compiler thinks that's supposed to be a method.
278 if (mIsDocument)
279 *aLoadFlags |= ::nsIChannel::LOAD_DOCUMENT_URI;
280
281 return rv;
282 }
283
284 NS_IMETHODIMP
285 nsViewSourceChannel::SetLoadFlags(uint32_t aLoadFlags)
286 {
287 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
288
289 // "View source" always wants the currently cached content.
290 // We also want to have _this_ channel, not mChannel to be the
291 // 'document' channel in the loadgroup.
292
293 // These should actually be just LOAD_FROM_CACHE and LOAD_DOCUMENT_URI but
294 // the win32 compiler fails to deal due to amiguous inheritance.
295 // nsIChannel::LOAD_DOCUMENT_URI/nsIRequest::LOAD_FROM_CACHE also fails; the
296 // Win32 compiler thinks that's supposed to be a method.
297 mIsDocument = (aLoadFlags & ::nsIChannel::LOAD_DOCUMENT_URI) ? true : false;
298
299 return mChannel->SetLoadFlags((aLoadFlags |
300 ::nsIRequest::LOAD_FROM_CACHE) &
301 ~::nsIChannel::LOAD_DOCUMENT_URI);
302 }
303
304 NS_IMETHODIMP
305 nsViewSourceChannel::GetContentType(nsACString &aContentType)
306 {
307 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
308
309 aContentType.Truncate();
310
311 if (mContentType.IsEmpty())
312 {
313 // Get the current content type
314 nsresult rv;
315 nsAutoCString contentType;
316 rv = mChannel->GetContentType(contentType);
317 if (NS_FAILED(rv)) return rv;
318
319 // If we don't know our type, just say so. The unknown
320 // content decoder will then kick in automatically, and it
321 // will call our SetOriginalContentType method instead of our
322 // SetContentType method to set the type it determines.
323 if (!contentType.Equals(UNKNOWN_CONTENT_TYPE)) {
324 contentType = VIEWSOURCE_CONTENT_TYPE;
325 }
326
327 mContentType = contentType;
328 }
329
330 aContentType = mContentType;
331 return NS_OK;
332 }
333
334 NS_IMETHODIMP
335 nsViewSourceChannel::SetContentType(const nsACString &aContentType)
336 {
337 // Our GetContentType() currently returns VIEWSOURCE_CONTENT_TYPE
338 //
339 // However, during the parsing phase the parser calls our
340 // channel's GetContentType(). Returning the string above trips up
341 // the parser. In order to avoid messy changes and not to have the
342 // parser depend on nsIViewSourceChannel Vidur proposed the
343 // following solution:
344 //
345 // The ViewSourceChannel initially returns a content type of
346 // VIEWSOURCE_CONTENT_TYPE. Based on this type decisions to
347 // create a viewer for doing a view source are made. After the
348 // viewer is created, nsLayoutDLF::CreateInstance() calls this
349 // SetContentType() with the original content type. When it's
350 // time for the parser to find out the content type it will call
351 // our channel's GetContentType() and it will get the original
352 // content type, such as, text/html and everything is kosher from
353 // then on.
354
355 if (!mOpened) {
356 // We do not take hints
357 return NS_ERROR_NOT_AVAILABLE;
358 }
359
360 mContentType = aContentType;
361 return NS_OK;
362 }
363
364 NS_IMETHODIMP
365 nsViewSourceChannel::GetContentCharset(nsACString &aContentCharset)
366 {
367 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
368
369 return mChannel->GetContentCharset(aContentCharset);
370 }
371
372 NS_IMETHODIMP
373 nsViewSourceChannel::SetContentCharset(const nsACString &aContentCharset)
374 {
375 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
376
377 return mChannel->SetContentCharset(aContentCharset);
378 }
379
380 // We don't forward these methods becacuse content-disposition isn't whitelisted
381 // (see GetResponseHeader/VisitResponseHeaders).
382 NS_IMETHODIMP
383 nsViewSourceChannel::GetContentDisposition(uint32_t *aContentDisposition)
384 {
385 return NS_ERROR_NOT_AVAILABLE;
386 }
387
388 NS_IMETHODIMP
389 nsViewSourceChannel::SetContentDisposition(uint32_t aContentDisposition)
390 {
391 return NS_ERROR_NOT_AVAILABLE;
392 }
393
394 NS_IMETHODIMP
395 nsViewSourceChannel::GetContentDispositionFilename(nsAString &aContentDispositionFilename)
396 {
397 return NS_ERROR_NOT_AVAILABLE;
398 }
399
400 NS_IMETHODIMP
401 nsViewSourceChannel::SetContentDispositionFilename(const nsAString &aContentDispositionFilename)
402 {
403 return NS_ERROR_NOT_AVAILABLE;
404 }
405
406 NS_IMETHODIMP
407 nsViewSourceChannel::GetContentDispositionHeader(nsACString &aContentDispositionHeader)
408 {
409 return NS_ERROR_NOT_AVAILABLE;
410 }
411
412 NS_IMETHODIMP
413 nsViewSourceChannel::GetContentLength(int64_t *aContentLength)
414 {
415 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
416
417 return mChannel->GetContentLength(aContentLength);
418 }
419
420 NS_IMETHODIMP
421 nsViewSourceChannel::SetContentLength(int64_t aContentLength)
422 {
423 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
424
425 return mChannel->SetContentLength(aContentLength);
426 }
427
428 NS_IMETHODIMP
429 nsViewSourceChannel::GetLoadGroup(nsILoadGroup* *aLoadGroup)
430 {
431 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
432
433 return mChannel->GetLoadGroup(aLoadGroup);
434 }
435
436 NS_IMETHODIMP
437 nsViewSourceChannel::SetLoadGroup(nsILoadGroup* aLoadGroup)
438 {
439 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
440
441 return mChannel->SetLoadGroup(aLoadGroup);
442 }
443
444 NS_IMETHODIMP
445 nsViewSourceChannel::GetOwner(nsISupports* *aOwner)
446 {
447 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
448
449 return mChannel->GetOwner(aOwner);
450 }
451
452 NS_IMETHODIMP
453 nsViewSourceChannel::SetOwner(nsISupports* aOwner)
454 {
455 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
456
457 return mChannel->SetOwner(aOwner);
458 }
459
460 NS_IMETHODIMP
461 nsViewSourceChannel::GetNotificationCallbacks(nsIInterfaceRequestor* *aNotificationCallbacks)
462 {
463 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
464
465 return mChannel->GetNotificationCallbacks(aNotificationCallbacks);
466 }
467
468 NS_IMETHODIMP
469 nsViewSourceChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
470 {
471 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
472
473 return mChannel->SetNotificationCallbacks(aNotificationCallbacks);
474 }
475
476 NS_IMETHODIMP
477 nsViewSourceChannel::GetSecurityInfo(nsISupports * *aSecurityInfo)
478 {
479 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
480
481 return mChannel->GetSecurityInfo(aSecurityInfo);
482 }
483
484 // nsIViewSourceChannel methods
485 NS_IMETHODIMP
486 nsViewSourceChannel::GetOriginalContentType(nsACString &aContentType)
487 {
488 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
489
490 return mChannel->GetContentType(aContentType);
491 }
492
493 NS_IMETHODIMP
494 nsViewSourceChannel::SetOriginalContentType(const nsACString &aContentType)
495 {
496 NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
497
498 // clear our cached content-type value
499 mContentType.Truncate();
500
501 return mChannel->SetContentType(aContentType);
502 }
503
504 NS_IMETHODIMP
505 nsViewSourceChannel::GetIsSrcdocChannel(bool* aIsSrcdocChannel)
506 {
507 *aIsSrcdocChannel = mIsSrcdocChannel;
508 return NS_OK;
509 }
510
511 NS_IMETHODIMP
512 nsViewSourceChannel::GetBaseURI(nsIURI** aBaseURI)
513 {
514 if (mIsSrcdocChannel) {
515 nsCOMPtr<nsIInputStreamChannel> isc = do_QueryInterface(mChannel);
516 if (isc) {
517 return isc->GetBaseURI(aBaseURI);
518 }
519 }
520 *aBaseURI = mBaseURI;
521 NS_IF_ADDREF(*aBaseURI);
522 return NS_OK;
523 }
524
525 NS_IMETHODIMP
526 nsViewSourceChannel::SetBaseURI(nsIURI* aBaseURI)
527 {
528 mBaseURI = aBaseURI;
529 return NS_OK;
530 }
531
532 // nsIRequestObserver methods
533 NS_IMETHODIMP
534 nsViewSourceChannel::OnStartRequest(nsIRequest *aRequest, nsISupports *aContext)
535 {
536 NS_ENSURE_TRUE(mListener, NS_ERROR_FAILURE);
537 // The channel may have gotten redirected... Time to update our info
538 mChannel = do_QueryInterface(aRequest);
539 mHttpChannel = do_QueryInterface(aRequest);
540 mCachingChannel = do_QueryInterface(aRequest);
541 mUploadChannel = do_QueryInterface(aRequest);
542
543 return mListener->OnStartRequest(static_cast<nsIViewSourceChannel*>
544 (this),
545 aContext);
546 }
547
548
549 NS_IMETHODIMP
550 nsViewSourceChannel::OnStopRequest(nsIRequest *aRequest, nsISupports* aContext,
551 nsresult aStatus)
552 {
553 NS_ENSURE_TRUE(mListener, NS_ERROR_FAILURE);
554 if (mChannel)
555 {
556 nsCOMPtr<nsILoadGroup> loadGroup;
557 mChannel->GetLoadGroup(getter_AddRefs(loadGroup));
558 if (loadGroup)
559 {
560 loadGroup->RemoveRequest(static_cast<nsIViewSourceChannel*>
561 (this),
562 nullptr, aStatus);
563 }
564 }
565 return mListener->OnStopRequest(static_cast<nsIViewSourceChannel*>
566 (this),
567 aContext, aStatus);
568 }
569
570
571 // nsIStreamListener methods
572 NS_IMETHODIMP
573 nsViewSourceChannel::OnDataAvailable(nsIRequest *aRequest, nsISupports* aContext,
574 nsIInputStream *aInputStream,
575 uint64_t aSourceOffset,
576 uint32_t aLength)
577 {
578 NS_ENSURE_TRUE(mListener, NS_ERROR_FAILURE);
579 return mListener->OnDataAvailable(static_cast<nsIViewSourceChannel*>
580 (this),
581 aContext, aInputStream,
582 aSourceOffset, aLength);
583 }
584
585
586 // nsIHttpChannel methods
587
588 // We want to forward most of nsIHttpChannel over to mHttpChannel, but we want
589 // to override GetRequestHeader and VisitHeaders. The reason is that we don't
590 // want various headers like Link: and Refresh: applying to view-source.
591 NS_IMETHODIMP
592 nsViewSourceChannel::GetRequestMethod(nsACString & aRequestMethod)
593 {
594 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
595 mHttpChannel->GetRequestMethod(aRequestMethod);
596 }
597
598 NS_IMETHODIMP
599 nsViewSourceChannel::SetRequestMethod(const nsACString & aRequestMethod)
600 {
601 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
602 mHttpChannel->SetRequestMethod(aRequestMethod);
603 }
604
605 NS_IMETHODIMP
606 nsViewSourceChannel::GetReferrer(nsIURI * *aReferrer)
607 {
608 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
609 mHttpChannel->GetReferrer(aReferrer);
610 }
611
612 NS_IMETHODIMP
613 nsViewSourceChannel::SetReferrer(nsIURI * aReferrer)
614 {
615 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
616 mHttpChannel->SetReferrer(aReferrer);
617 }
618
619 NS_IMETHODIMP
620 nsViewSourceChannel::GetRequestHeader(const nsACString & aHeader,
621 nsACString & aValue)
622 {
623 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
624 mHttpChannel->GetRequestHeader(aHeader, aValue);
625 }
626
627 NS_IMETHODIMP
628 nsViewSourceChannel::SetRequestHeader(const nsACString & aHeader,
629 const nsACString & aValue,
630 bool aMerge)
631 {
632 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
633 mHttpChannel->SetRequestHeader(aHeader, aValue, aMerge);
634 }
635
636 NS_IMETHODIMP
637 nsViewSourceChannel::VisitRequestHeaders(nsIHttpHeaderVisitor *aVisitor)
638 {
639 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
640 mHttpChannel->VisitRequestHeaders(aVisitor);
641 }
642
643 NS_IMETHODIMP
644 nsViewSourceChannel::GetAllowPipelining(bool *aAllowPipelining)
645 {
646 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
647 mHttpChannel->GetAllowPipelining(aAllowPipelining);
648 }
649
650 NS_IMETHODIMP
651 nsViewSourceChannel::SetAllowPipelining(bool aAllowPipelining)
652 {
653 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
654 mHttpChannel->SetAllowPipelining(aAllowPipelining);
655 }
656
657 NS_IMETHODIMP
658 nsViewSourceChannel::GetRedirectionLimit(uint32_t *aRedirectionLimit)
659 {
660 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
661 mHttpChannel->GetRedirectionLimit(aRedirectionLimit);
662 }
663
664 NS_IMETHODIMP
665 nsViewSourceChannel::SetRedirectionLimit(uint32_t aRedirectionLimit)
666 {
667 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
668 mHttpChannel->SetRedirectionLimit(aRedirectionLimit);
669 }
670
671 NS_IMETHODIMP
672 nsViewSourceChannel::GetResponseStatus(uint32_t *aResponseStatus)
673 {
674 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
675 mHttpChannel->GetResponseStatus(aResponseStatus);
676 }
677
678 NS_IMETHODIMP
679 nsViewSourceChannel::GetResponseStatusText(nsACString & aResponseStatusText)
680 {
681 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
682 mHttpChannel->GetResponseStatusText(aResponseStatusText);
683 }
684
685 NS_IMETHODIMP
686 nsViewSourceChannel::GetRequestSucceeded(bool *aRequestSucceeded)
687 {
688 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
689 mHttpChannel->GetRequestSucceeded(aRequestSucceeded);
690 }
691
692 NS_IMETHODIMP
693 nsViewSourceChannel::GetResponseHeader(const nsACString & aHeader,
694 nsACString & aValue)
695 {
696 if (!mHttpChannel)
697 return NS_ERROR_NULL_POINTER;
698
699 if (!aHeader.Equals(NS_LITERAL_CSTRING("Content-Type"),
700 nsCaseInsensitiveCStringComparator()) &&
701 !aHeader.Equals(NS_LITERAL_CSTRING("X-Content-Security-Policy"),
702 nsCaseInsensitiveCStringComparator()) &&
703 !aHeader.Equals(NS_LITERAL_CSTRING("X-Content-Security-Policy-Report-Only"),
704 nsCaseInsensitiveCStringComparator()) &&
705 !aHeader.Equals(NS_LITERAL_CSTRING("Content-Security-Policy"),
706 nsCaseInsensitiveCStringComparator()) &&
707 !aHeader.Equals(NS_LITERAL_CSTRING("Content-Security-Policy-Report-Only"),
708 nsCaseInsensitiveCStringComparator()) &&
709 !aHeader.Equals(NS_LITERAL_CSTRING("X-Frame-Options"),
710 nsCaseInsensitiveCStringComparator())) {
711 aValue.Truncate();
712 return NS_OK;
713 }
714
715 return mHttpChannel->GetResponseHeader(aHeader, aValue);
716 }
717
718 NS_IMETHODIMP
719 nsViewSourceChannel::SetResponseHeader(const nsACString & header,
720 const nsACString & value, bool merge)
721 {
722 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
723 mHttpChannel->SetResponseHeader(header, value, merge);
724 }
725
726 NS_IMETHODIMP
727 nsViewSourceChannel::VisitResponseHeaders(nsIHttpHeaderVisitor *aVisitor)
728 {
729 if (!mHttpChannel)
730 return NS_ERROR_NULL_POINTER;
731
732 NS_NAMED_LITERAL_CSTRING(contentTypeStr, "Content-Type");
733 nsAutoCString contentType;
734 nsresult rv =
735 mHttpChannel->GetResponseHeader(contentTypeStr, contentType);
736 if (NS_SUCCEEDED(rv))
737 aVisitor->VisitHeader(contentTypeStr, contentType);
738 return NS_OK;
739 }
740
741 NS_IMETHODIMP
742 nsViewSourceChannel::IsNoStoreResponse(bool *_retval)
743 {
744 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
745 mHttpChannel->IsNoStoreResponse(_retval);
746 }
747
748 NS_IMETHODIMP
749 nsViewSourceChannel::IsNoCacheResponse(bool *_retval)
750 {
751 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
752 mHttpChannel->IsNoCacheResponse(_retval);
753 }
754
755 NS_IMETHODIMP
756 nsViewSourceChannel::RedirectTo(nsIURI *uri)
757 {
758 return !mHttpChannel ? NS_ERROR_NULL_POINTER :
759 mHttpChannel->RedirectTo(uri);
760 }
761

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