0df738e3d98bfd624b19302a0b968d181504fb4e
[WebKit-https.git] / WebKit / win / WebDownloadCFNet.cpp
1 /*
2  * Copyright (C) 2007 Apple Inc.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
24  */
25
26 #include "config.h"
27 #include "WebKitDLL.h"
28 #include "WebDownload.h"
29
30 #include "CString.h"
31 #include "DefaultDownloadDelegate.h"
32 #include "MarshallingHelpers.h"
33 #include "WebError.h"
34 #include "WebKit.h"
35 #include "WebKitLogging.h"
36 #include "WebMutableURLRequest.h"
37 #include "WebURLAuthenticationChallenge.h"
38 #include "WebURLCredential.h"
39 #include "WebURLResponse.h"
40
41 #include <wtf/platform.h>
42
43 #include <io.h>
44 #include <sys/stat.h>
45 #include <sys/types.h>
46
47 #pragma warning(push, 0)
48 #include <WebCore/AuthenticationCF.h>
49 #include <WebCore/BString.h>
50 #include <WebCore/ResourceError.h>
51 #include <WebCore/ResourceHandle.h>
52 #include <WebCore/ResourceRequest.h>
53 #include <WebCore/ResourceResponse.h>
54 #include <wtf/CurrentTime.h>
55 #pragma warning(pop)
56
57 using namespace WebCore;
58
59 // CFURLDownload Callbacks ----------------------------------------------------------------
60 static void didStartCallback(CFURLDownloadRef download, const void *clientInfo);
61 static CFURLRequestRef willSendRequestCallback(CFURLDownloadRef download, CFURLRequestRef request, CFURLResponseRef redirectionResponse, const void *clientInfo);
62 static void didReceiveAuthenticationChallengeCallback(CFURLDownloadRef download, CFURLAuthChallengeRef challenge, const void *clientInfo);
63 static void didReceiveResponseCallback(CFURLDownloadRef download, CFURLResponseRef response, const void *clientInfo);
64 static void willResumeWithResponseCallback(CFURLDownloadRef download, CFURLResponseRef response, UInt64 startingByte, const void *clientInfo);
65 static void didReceiveDataCallback(CFURLDownloadRef download, CFIndex length, const void *clientInfo);
66 static Boolean shouldDecodeDataOfMIMETypeCallback(CFURLDownloadRef download, CFStringRef encodingType, const void *clientInfo);
67 static void decideDestinationWithSuggestedObjectNameCallback(CFURLDownloadRef download, CFStringRef objectName, const void *clientInfo);
68 static void didCreateDestinationCallback(CFURLDownloadRef download, CFURLRef path, const void *clientInfo);
69 static void didFinishCallback(CFURLDownloadRef download, const void *clientInfo);
70 static void didFailCallback(CFURLDownloadRef download, CFErrorRef error, const void *clientInfo);
71
72 void WebDownload::init(ResourceHandle* handle, const ResourceRequest& request, const ResourceResponse& response, IWebDownloadDelegate* delegate)
73 {
74     m_delegate = delegate ? delegate : DefaultDownloadDelegate::sharedInstance();
75     CFURLConnectionRef connection = handle->connection();
76     if (!connection) {
77         LOG_ERROR("WebDownload::WebDownload(ResourceHandle*,...) called with an inactive ResourceHandle");    
78         return;
79     }
80
81     CFURLDownloadClient client = {0, this, 0, 0, 0, didStartCallback, willSendRequestCallback, didReceiveAuthenticationChallengeCallback, 
82         didReceiveResponseCallback, willResumeWithResponseCallback, didReceiveDataCallback, shouldDecodeDataOfMIMETypeCallback,
83         decideDestinationWithSuggestedObjectNameCallback, didCreateDestinationCallback, didFinishCallback, didFailCallback};
84
85     m_request.adoptRef(WebMutableURLRequest::createInstance(request));
86     m_download.adoptCF(CFURLDownloadCreateAndStartWithLoadingConnection(0, connection, request.cfURLRequest(), response.cfURLResponse(), &client));
87
88     // It is possible for CFURLDownloadCreateAndStartWithLoadingConnection() to fail if the passed in CFURLConnection is not in a "downloadable state"
89     // However, we should never hit that case
90     if (!m_download) {
91         ASSERT_NOT_REACHED();
92         LOG_ERROR("WebDownload - Failed to create WebDownload from existing connection (%s)", request.url().string().utf8().data());
93     } else
94         LOG(Download, "WebDownload - Created WebDownload %p from existing connection (%s)", this, request.url().string().utf8().data());
95
96     // The CFURLDownload either starts successfully and retains the CFURLConnection, 
97     // or it fails to creating and we have a now-useless connection with a dangling ref. 
98     // Either way, we need to release the connection to balance out ref counts
99     handle->releaseConnectionForDownload();
100     CFRelease(connection);
101 }
102
103 void WebDownload::init(const KURL& url, IWebDownloadDelegate* delegate)
104 {
105     m_delegate = delegate ? delegate : DefaultDownloadDelegate::sharedInstance();
106     LOG_ERROR("Delegate is %p", m_delegate.get());
107
108     ResourceRequest request(url);
109     CFURLRequestRef cfRequest = request.cfURLRequest();
110
111     CFURLDownloadClient client = {0, this, 0, 0, 0, didStartCallback, willSendRequestCallback, didReceiveAuthenticationChallengeCallback, 
112                                   didReceiveResponseCallback, willResumeWithResponseCallback, didReceiveDataCallback, shouldDecodeDataOfMIMETypeCallback, 
113                                   decideDestinationWithSuggestedObjectNameCallback, didCreateDestinationCallback, didFinishCallback, didFailCallback};
114     m_request.adoptRef(WebMutableURLRequest::createInstance(request));
115     m_download.adoptCF(CFURLDownloadCreate(0, cfRequest, &client));
116
117     CFURLDownloadScheduleWithCurrentMessageQueue(m_download.get());
118     CFURLDownloadScheduleDownloadWithRunLoop(m_download.get(), ResourceHandle::loaderRunLoop(), kCFRunLoopDefaultMode);
119
120     LOG(Download, "WebDownload - Initialized download of url %s in WebDownload %p", url.string().utf8().data(), this);
121 }
122
123 // IWebDownload -------------------------------------------------------------------
124
125 HRESULT STDMETHODCALLTYPE WebDownload::initWithRequest(
126         /* [in] */ IWebURLRequest* request, 
127         /* [in] */ IWebDownloadDelegate* delegate)
128 {
129     COMPtr<WebMutableURLRequest> webRequest;
130     if (!request || FAILED(request->QueryInterface(&webRequest))) {
131         LOG(Download, "WebDownload - initWithRequest failed - not a WebMutableURLRequest");    
132         return E_FAIL;
133     }
134
135     if (!delegate)
136         return E_FAIL;
137     m_delegate = delegate;
138     LOG(Download, "Delegate is %p", m_delegate.get());
139
140     RetainPtr<CFURLRequestRef> cfRequest = webRequest->resourceRequest().cfURLRequest();
141
142     CFURLDownloadClient client = {0, this, 0, 0, 0, didStartCallback, willSendRequestCallback, didReceiveAuthenticationChallengeCallback, 
143                                   didReceiveResponseCallback, willResumeWithResponseCallback, didReceiveDataCallback, shouldDecodeDataOfMIMETypeCallback, 
144                                   decideDestinationWithSuggestedObjectNameCallback, didCreateDestinationCallback, didFinishCallback, didFailCallback};
145     m_request.adoptRef(WebMutableURLRequest::createInstance(webRequest.get()));
146     m_download.adoptCF(CFURLDownloadCreate(0, cfRequest.get(), &client));
147
148     // If for some reason the download failed to create, 
149     // we have particular cleanup to do
150     if (!m_download) {
151         m_request = 0;    
152         return E_FAIL;
153     }
154
155     CFURLDownloadScheduleWithCurrentMessageQueue(m_download.get());
156     CFURLDownloadScheduleDownloadWithRunLoop(m_download.get(), ResourceHandle::loaderRunLoop(), kCFRunLoopDefaultMode);
157
158     LOG(Download, "WebDownload - initWithRequest complete, started download of url %s", webRequest->resourceRequest().url().string().utf8().data());
159     return S_OK;
160 }
161
162 HRESULT STDMETHODCALLTYPE WebDownload::initToResumeWithBundle(
163         /* [in] */ BSTR bundlePath, 
164         /* [in] */ IWebDownloadDelegate* delegate)
165 {
166     LOG(Download, "Attempting resume of download bundle %s", String(bundlePath, SysStringLen(bundlePath)).ascii().data());
167
168     RetainPtr<CFDataRef> resumeData(AdoptCF, extractResumeDataFromBundle(String(bundlePath, SysStringLen(bundlePath))));
169     
170     if (!resumeData)
171         return E_FAIL;
172
173     if (!delegate)
174         return E_FAIL;
175     m_delegate = delegate;
176     LOG(Download, "Delegate is %p", m_delegate.get());
177
178     CFURLDownloadClient client = {0, this, 0, 0, 0, didStartCallback, willSendRequestCallback, didReceiveAuthenticationChallengeCallback, 
179                                   didReceiveResponseCallback, willResumeWithResponseCallback, didReceiveDataCallback, shouldDecodeDataOfMIMETypeCallback, 
180                                   decideDestinationWithSuggestedObjectNameCallback, didCreateDestinationCallback, didFinishCallback, didFailCallback};
181     
182     RetainPtr<CFURLRef> pathURL(AdoptCF, MarshallingHelpers::PathStringToFileCFURLRef(String(bundlePath, SysStringLen(bundlePath))));
183     ASSERT(pathURL);
184
185     m_download.adoptCF(CFURLDownloadCreateWithResumeData(0, resumeData.get(), pathURL.get(), &client));
186
187     if (!m_download) {
188         LOG(Download, "Failed to create CFURLDownloadRef for resume");    
189         return E_FAIL;
190     }
191     
192     m_bundlePath = String(bundlePath, SysStringLen(bundlePath));
193     // Attempt to remove the ".download" extension from the bundle for the final file destination
194     // Failing that, we clear m_destination and will ask the delegate later once the download starts
195     if (m_bundlePath.endsWith(bundleExtension(), false)) {
196         m_destination = m_bundlePath.copy();
197         m_destination.truncate(m_destination.length() - bundleExtension().length());
198     } else
199         m_destination = String();
200     
201     CFURLDownloadScheduleWithCurrentMessageQueue(m_download.get());
202     CFURLDownloadScheduleDownloadWithRunLoop(m_download.get(), ResourceHandle::loaderRunLoop(), kCFRunLoopDefaultMode);
203
204     LOG(Download, "WebDownload - initWithRequest complete, resumed download of bundle %s", String(bundlePath, SysStringLen(bundlePath)).ascii().data());
205     return S_OK;
206 }
207
208 HRESULT STDMETHODCALLTYPE WebDownload::start()
209 {
210     LOG(Download, "WebDownload - Starting download (%p)", this);
211     if (!m_download)
212         return E_FAIL;
213
214     CFURLDownloadStart(m_download.get());
215     // FIXME: 4950477 - CFURLDownload neglects to make the didStart() client call upon starting the download.
216     // This is a somewhat critical call, so we'll fake it for now!
217     didStart();
218
219     return S_OK;
220 }
221
222 HRESULT STDMETHODCALLTYPE WebDownload::cancel()
223 {
224     LOG(Download, "WebDownload - Cancelling download (%p)", this);
225     if (!m_download)
226         return E_FAIL;
227
228     CFURLDownloadCancel(m_download.get());
229     m_download = 0;
230     return S_OK;
231 }
232
233 HRESULT STDMETHODCALLTYPE WebDownload::cancelForResume()
234 {
235     LOG(Download, "WebDownload - Cancelling download (%p), writing resume information to file if possible", this);
236     ASSERT(m_download);
237     if (!m_download)
238         return E_FAIL;
239
240     HRESULT hr = S_OK;
241     RetainPtr<CFDataRef> resumeData;
242     if (m_destination.isEmpty()) {
243         CFURLDownloadCancel(m_download.get());
244         goto exit;
245     }
246
247     CFURLDownloadSetDeletesUponFailure(m_download.get(), false);
248     CFURLDownloadCancel(m_download.get());
249
250     resumeData = CFURLDownloadCopyResumeData(m_download.get());
251     if (!resumeData) {
252         LOG(Download, "WebDownload - Unable to create resume data for download (%p)", this);
253         goto exit;
254     }
255
256     appendResumeDataToBundle(resumeData.get(), m_bundlePath);
257    
258 exit:
259     m_download = 0;
260     return hr;
261 }
262
263 HRESULT STDMETHODCALLTYPE WebDownload::deletesFileUponFailure(
264         /* [out, retval] */ BOOL* result)
265 {
266     if (!m_download)
267         return E_FAIL;
268     *result = CFURLDownloadDeletesUponFailure(m_download.get());
269     return S_OK;
270 }
271
272 HRESULT STDMETHODCALLTYPE WebDownload::setDeletesFileUponFailure(
273         /* [in] */ BOOL deletesFileUponFailure)
274 {
275     if (!m_download)
276         return E_FAIL;
277     CFURLDownloadSetDeletesUponFailure(m_download.get(), !!deletesFileUponFailure);
278     return S_OK;
279 }
280
281 HRESULT STDMETHODCALLTYPE WebDownload::setDestination(
282         /* [in] */ BSTR path, 
283         /* [in] */ BOOL allowOverwrite)
284 {
285     if (!m_download)
286         return E_FAIL;
287
288     m_destination = String(path, SysStringLen(path));
289     m_bundlePath = m_destination + bundleExtension();
290
291     CFURLRef pathURL = MarshallingHelpers::PathStringToFileCFURLRef(m_bundlePath);
292     CFURLDownloadSetDestination(m_download.get(), pathURL, !!allowOverwrite);
293     CFRelease(pathURL);
294
295     LOG(Download, "WebDownload - Set destination to %s", m_bundlePath.ascii().data());
296
297     return S_OK;
298 }
299
300 // IWebURLAuthenticationChallengeSender -------------------------------------------------------------------
301
302 HRESULT STDMETHODCALLTYPE WebDownload::cancelAuthenticationChallenge(
303         /* [in] */ IWebURLAuthenticationChallenge*)
304 {
305     if (m_download) {
306         CFURLDownloadCancel(m_download.get());
307         m_download = 0;
308     }
309
310     // FIXME: Do we need a URL or description for this error code?
311     ResourceError error(String(WebURLErrorDomain), WebURLErrorUserCancelledAuthentication, "", "");
312     COMPtr<WebError> webError(AdoptCOM, WebError::createInstance(error));
313     m_delegate->didFailWithError(this, webError.get());
314
315     return S_OK;
316 }
317
318 HRESULT STDMETHODCALLTYPE WebDownload::continueWithoutCredentialForAuthenticationChallenge(
319         /* [in] */ IWebURLAuthenticationChallenge* challenge)
320 {
321     COMPtr<WebURLAuthenticationChallenge> webChallenge(Query, challenge);
322     if (!webChallenge)
323         return E_NOINTERFACE;
324
325     if (m_download)
326         CFURLDownloadUseCredential(m_download.get(), 0, webChallenge->authenticationChallenge().cfURLAuthChallengeRef());
327     return S_OK;
328 }
329
330 HRESULT STDMETHODCALLTYPE WebDownload::useCredential(
331         /* [in] */ IWebURLCredential* credential, 
332         /* [in] */ IWebURLAuthenticationChallenge* challenge)
333 {
334     COMPtr<WebURLAuthenticationChallenge> webChallenge(Query, challenge);
335     if (!webChallenge)
336         return E_NOINTERFACE;
337
338     COMPtr<WebURLCredential> webCredential(Query, credential);
339     if (!webCredential)
340         return E_NOINTERFACE;
341
342     RetainPtr<CFURLCredentialRef> cfCredential(AdoptCF, createCF(webCredential->credential()));
343
344     if (m_download)
345         CFURLDownloadUseCredential(m_download.get(), cfCredential.get(), webChallenge->authenticationChallenge().cfURLAuthChallengeRef());
346     return S_OK;
347 }
348
349 // CFURLDownload Callbacks -------------------------------------------------------------------
350 void WebDownload::didStart()
351 {
352 #ifndef NDEBUG
353     m_startTime = m_dataTime = currentTime();
354     m_received = 0;
355     LOG(Download, "DOWNLOAD - Started %p at %.3f seconds", this, m_startTime);
356 #endif
357     if (FAILED(m_delegate->didBegin(this)))
358         LOG_ERROR("DownloadDelegate->didBegin failed");
359 }
360
361 CFURLRequestRef WebDownload::willSendRequest(CFURLRequestRef request, CFURLResponseRef response)
362 {
363     COMPtr<WebMutableURLRequest> webRequest(AdoptCOM, WebMutableURLRequest::createInstance(ResourceRequest(request)));
364     COMPtr<WebURLResponse> webResponse(AdoptCOM, WebURLResponse::createInstance(ResourceResponse(response)));
365     COMPtr<IWebMutableURLRequest> finalRequest;
366
367     if (FAILED(m_delegate->willSendRequest(this, webRequest.get(), webResponse.get(), &finalRequest)))
368         LOG_ERROR("DownloadDelegate->willSendRequest failed");
369     
370     if (!finalRequest)
371         return 0;
372
373     COMPtr<WebMutableURLRequest> finalWebRequest(AdoptCOM, WebMutableURLRequest::createInstance(finalRequest.get()));
374     m_request = finalWebRequest.get();
375     CFURLRequestRef result = finalWebRequest->resourceRequest().cfURLRequest();
376     CFRetain(result);
377     return result;
378 }
379
380 void WebDownload::didReceiveAuthenticationChallenge(CFURLAuthChallengeRef challenge)
381 {
382     // Try previously stored credential first.
383     if (!CFURLAuthChallengeGetPreviousFailureCount(challenge)) {
384         CFURLCredentialRef credential = WebCoreCredentialStorage::get(CFURLAuthChallengeGetProtectionSpace(challenge));
385         if (credential) {
386             CFURLDownloadUseCredential(m_download.get(), credential, challenge);
387             return;
388         }
389     }
390
391     COMPtr<IWebURLAuthenticationChallenge> webChallenge(AdoptCOM,
392         WebURLAuthenticationChallenge::createInstance(AuthenticationChallenge(challenge, 0), this));
393
394     if (SUCCEEDED(m_delegate->didReceiveAuthenticationChallenge(this, webChallenge.get())))
395         return;
396
397     cancelAuthenticationChallenge(webChallenge.get());
398 }
399
400 void WebDownload::didReceiveResponse(CFURLResponseRef response)
401 {
402     COMPtr<WebURLResponse> webResponse(AdoptCOM, WebURLResponse::createInstance(ResourceResponse(response)));
403     if (FAILED(m_delegate->didReceiveResponse(this, webResponse.get())))
404         LOG_ERROR("DownloadDelegate->didReceiveResponse failed");
405 }
406
407 void WebDownload::willResumeWithResponse(CFURLResponseRef response, UInt64 fromByte)
408 {
409     COMPtr<WebURLResponse> webResponse(AdoptCOM, WebURLResponse::createInstance(ResourceResponse(response)));
410     if (FAILED(m_delegate->willResumeWithResponse(this, webResponse.get(), fromByte)))
411         LOG_ERROR("DownloadDelegate->willResumeWithResponse failed");
412 }
413
414 void WebDownload::didReceiveData(CFIndex length)
415 {
416 #ifndef NDEBUG
417     m_received += length;
418     double current = currentTime();
419     if (current - m_dataTime > 2.0)
420         LOG(Download, "DOWNLOAD - %p hanged for %.3f seconds - Received %i bytes for a total of %i", this, current - m_dataTime, length, m_received);
421     m_dataTime = current;
422 #endif
423     if (FAILED(m_delegate->didReceiveDataOfLength(this, length)))
424         LOG_ERROR("DownloadDelegate->didReceiveData failed");
425 }
426
427 bool WebDownload::shouldDecodeDataOfMIMEType(CFStringRef mimeType)
428 {
429     BOOL result;
430     if (FAILED(m_delegate->shouldDecodeSourceDataOfMIMEType(this, BString(mimeType), &result))) {
431         LOG_ERROR("DownloadDelegate->shouldDecodeSourceDataOfMIMEType failed");
432         return false;
433     }
434     return !!result;
435 }
436
437 void WebDownload::decideDestinationWithSuggestedObjectName(CFStringRef name)
438 {    
439     if (FAILED(m_delegate->decideDestinationWithSuggestedFilename(this, BString(name))))
440         LOG_ERROR("DownloadDelegate->decideDestinationWithSuggestedObjectName failed");
441 }
442
443 void WebDownload::didCreateDestination(CFURLRef destination)
444 {
445     // The concept of the ".download bundle" is internal to the WebDownload, so therefore
446     // we try to mask the delegate from its existence as much as possible by telling it the final
447     // destination was created, when in reality the bundle was created
448
449     String createdDestination = MarshallingHelpers::FileCFURLRefToPathString(destination);
450
451     // At this point in receiving CFURLDownload callbacks, we should definitely have the bundle path stored locally
452     // and it should match with the file that CFURLDownload created
453     ASSERT(createdDestination == m_bundlePath);
454     // And we should also always have the final-destination stored
455     ASSERT(!m_destination.isEmpty());
456
457     BString path(m_destination);
458     if (FAILED(m_delegate->didCreateDestination(this, path)))
459         LOG_ERROR("DownloadDelegate->didCreateDestination failed");
460 }
461
462 void WebDownload::didFinish()
463 {
464 #ifndef NDEBUG
465     LOG(Download, "DOWNLOAD - Finished %p after %i bytes and %.3f seconds", this, m_received, currentTime() - m_startTime);
466 #endif
467
468     ASSERT(!m_bundlePath.isEmpty() && !m_destination.isEmpty());
469     LOG(Download, "WebDownload - Moving file from bundle %s to destination %s", m_bundlePath.ascii().data(), m_destination.ascii().data());
470
471     // We try to rename the bundle to the final file name.  If that fails, we give the delegate one more chance to chose
472     // the final file name, then we just leave it
473     if (!MoveFileEx(m_bundlePath.charactersWithNullTermination(), m_destination.charactersWithNullTermination(), 0)) {
474         LOG_ERROR("Failed to move bundle %s to %s on completion\nError - %i", m_bundlePath.ascii().data(), m_destination.ascii().data(), GetLastError());
475         
476         bool reportBundlePathAsFinalPath = true;
477
478         BString destinationBSTR(m_destination.characters(), m_destination.length());
479         if (FAILED(m_delegate->decideDestinationWithSuggestedFilename(this, destinationBSTR)))
480             LOG_ERROR("delegate->decideDestinationWithSuggestedFilename() failed");
481
482         // The call to m_delegate->decideDestinationWithSuggestedFilename() should have changed our destination, so we'll try the move
483         // one last time.
484         if (!m_destination.isEmpty())
485             if (MoveFileEx(m_bundlePath.charactersWithNullTermination(), m_destination.charactersWithNullTermination(), 0))
486                 reportBundlePathAsFinalPath = false;
487
488         // We either need to tell the delegate our final filename is the bundle filename, or is the file name they just told us to use
489         if (reportBundlePathAsFinalPath) {
490             BString bundleBSTR(m_bundlePath);
491             m_delegate->didCreateDestination(this, bundleBSTR);
492         } else {
493             BString finalDestinationBSTR = BString(m_destination);
494             m_delegate->didCreateDestination(this, finalDestinationBSTR);
495         }
496     }
497
498     // It's extremely likely the call to delegate->didFinish() will deref this, so lets not let that cause our destruction just yet
499     COMPtr<WebDownload> protect = this;
500     if (FAILED(m_delegate->didFinish(this)))
501         LOG_ERROR("DownloadDelegate->didFinish failed");
502
503     m_download = 0;
504 }
505
506 void WebDownload::didFail(CFErrorRef error)
507 {
508     COMPtr<WebError> webError(AdoptCOM, WebError::createInstance(ResourceError(error)));
509     if (FAILED(m_delegate->didFailWithError(this, webError.get())))
510         LOG_ERROR("DownloadDelegate->didFailWithError failed");
511 }
512
513 // CFURLDownload Callbacks ----------------------------------------------------------------
514 void didStartCallback(CFURLDownloadRef, const void *clientInfo)
515 { ((WebDownload*)clientInfo)->didStart(); }
516
517 CFURLRequestRef willSendRequestCallback(CFURLDownloadRef, CFURLRequestRef request, CFURLResponseRef redirectionResponse, const void *clientInfo)
518 { return ((WebDownload*)clientInfo)->willSendRequest(request, redirectionResponse); }
519
520 void didReceiveAuthenticationChallengeCallback(CFURLDownloadRef, CFURLAuthChallengeRef challenge, const void *clientInfo)
521 { ((WebDownload*)clientInfo)->didReceiveAuthenticationChallenge(challenge); }
522
523 void didReceiveResponseCallback(CFURLDownloadRef, CFURLResponseRef response, const void *clientInfo)
524 { ((WebDownload*)clientInfo)->didReceiveResponse(response); }
525
526 void willResumeWithResponseCallback(CFURLDownloadRef, CFURLResponseRef response, UInt64 startingByte, const void *clientInfo)
527 { ((WebDownload*)clientInfo)->willResumeWithResponse(response, startingByte); }
528
529 void didReceiveDataCallback(CFURLDownloadRef, CFIndex length, const void *clientInfo)
530 { ((WebDownload*)clientInfo)->didReceiveData(length); }
531
532 Boolean shouldDecodeDataOfMIMETypeCallback(CFURLDownloadRef, CFStringRef encodingType, const void *clientInfo)
533 { return ((WebDownload*)clientInfo)->shouldDecodeDataOfMIMEType(encodingType); }
534
535 void decideDestinationWithSuggestedObjectNameCallback(CFURLDownloadRef, CFStringRef objectName, const void *clientInfo)
536 { ((WebDownload*)clientInfo)->decideDestinationWithSuggestedObjectName(objectName); }
537
538 void didCreateDestinationCallback(CFURLDownloadRef, CFURLRef path, const void *clientInfo)
539 { ((WebDownload*)clientInfo)->didCreateDestination(path); }
540
541 void didFinishCallback(CFURLDownloadRef, const void *clientInfo)
542 { ((WebDownload*)clientInfo)->didFinish(); }
543
544 void didFailCallback(CFURLDownloadRef, CFErrorRef error, const void *clientInfo)
545 { ((WebDownload*)clientInfo)->didFail(error); }