Source/JavaScriptCore: WebKit2: Use CFNetwork Sessions API.
[WebKit-https.git] / Source / WebCore / platform / network / mac / ResourceHandleMac.mm
1 /*
2  * Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010 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 #import "config.h"
27 #import "ResourceHandleInternal.h"
28
29 #if !USE(CFNETWORK)
30
31 #import "AuthenticationChallenge.h"
32 #import "AuthenticationMac.h"
33 #import "Base64.h"
34 #import "BlobRegistry.h"
35 #import "BlockExceptions.h"
36 #import "CredentialStorage.h"
37 #import "CachedResourceLoader.h"
38 #import "EmptyProtocolDefinitions.h"
39 #import "FormDataStreamMac.h"
40 #import "Frame.h"
41 #import "FrameLoader.h"
42 #import "Logging.h"
43 #import "MIMETypeRegistry.h"
44 #import "Page.h"
45 #import "ResourceError.h"
46 #import "ResourceResponse.h"
47 #import "SchedulePair.h"
48 #import "Settings.h"
49 #import "SharedBuffer.h"
50 #import "SubresourceLoader.h"
51 #import "WebCoreSystemInterface.h"
52 #import "WebCoreURLResponse.h"
53 #import <wtf/text/CString.h>
54 #import <wtf/UnusedParam.h>
55
56 #ifdef BUILDING_ON_TIGER
57 typedef int NSInteger;
58 #endif
59
60 using namespace WebCore;
61
62 @interface WebCoreResourceHandleAsDelegate : NSObject <NSURLConnectionDelegate> {
63     ResourceHandle* m_handle;
64 }
65 - (id)initWithHandle:(ResourceHandle*)handle;
66 - (void)detachHandle;
67 @end
68
69 // WebCoreNSURLConnectionDelegateProxy exists so that we can cast m_proxy to it in order
70 // to disambiguate the argument type in the -setDelegate: call.  This avoids a spurious
71 // warning that the compiler would otherwise emit.
72 @interface WebCoreNSURLConnectionDelegateProxy : NSObject <NSURLConnectionDelegate>
73 - (void)setDelegate:(id<NSURLConnectionDelegate>)delegate;
74 @end
75
76 @interface NSURLConnection (NSURLConnectionTigerPrivate)
77 - (NSData *)_bufferedData;
78 @end
79
80 @interface NSURLConnection (Details)
81 -(id)_initWithRequest:(NSURLRequest *)request delegate:(id)delegate usesCache:(BOOL)usesCacheFlag maxContentLength:(long long)maxContentLength startImmediately:(BOOL)startImmediately connectionProperties:(NSDictionary *)connectionProperties;
82 @end
83
84 @interface NSURLRequest (Details)
85 - (id)_propertyForKey:(NSString *)key;
86 @end
87
88 #ifndef BUILDING_ON_TIGER
89
90 class WebCoreSynchronousLoaderClient : public ResourceHandleClient {
91 public:
92     static PassOwnPtr<WebCoreSynchronousLoaderClient> create()
93     {
94         return adoptPtr(new WebCoreSynchronousLoaderClient);
95     }
96
97     virtual ~WebCoreSynchronousLoaderClient();
98
99     void setAllowStoredCredentials(bool allow) { m_allowStoredCredentials = allow; }
100     NSURLResponse *response() { return m_response; }
101     NSMutableData *data() { return m_data; }
102     NSError *error() { return m_error; }
103     bool isDone() { return m_isDone; }
104
105 private:
106     WebCoreSynchronousLoaderClient()
107         : m_allowStoredCredentials(false)
108         , m_response(0)
109         , m_data(0)
110         , m_error(0)
111         , m_isDone(false)
112     {
113     }
114
115     virtual void willSendRequest(ResourceHandle*, ResourceRequest&, const ResourceResponse& /*redirectResponse*/);
116     virtual bool shouldUseCredentialStorage(ResourceHandle*);
117     virtual void didReceiveAuthenticationChallenge(ResourceHandle*, const AuthenticationChallenge&);
118     virtual void didReceiveResponse(ResourceHandle*, const ResourceResponse&);
119     virtual void didReceiveData(ResourceHandle*, const char*, int, int /*lengthReceived*/);
120     virtual void didFinishLoading(ResourceHandle*, double /*finishTime*/);
121     virtual void didFail(ResourceHandle*, const ResourceError&);
122 #if USE(PROTECTION_SPACE_AUTH_CALLBACK)
123     virtual bool canAuthenticateAgainstProtectionSpace(ResourceHandle*, const ProtectionSpace&);
124 #endif
125
126     bool m_allowStoredCredentials;
127     NSURLResponse *m_response;
128     NSMutableData *m_data;
129     NSError *m_error;
130     bool m_isDone;
131 };
132
133 static NSString *WebCoreSynchronousLoaderRunLoopMode = @"WebCoreSynchronousLoaderRunLoopMode";
134
135 #endif
136
137 namespace WebCore {
138
139 #ifdef BUILDING_ON_TIGER
140 static unsigned inNSURLConnectionCallback;
141 #endif
142
143 #ifndef NDEBUG
144 static bool isInitializingConnection;
145 #endif
146     
147 class CallbackGuard {
148 public:
149     CallbackGuard()
150     {
151 #ifdef BUILDING_ON_TIGER
152         ++inNSURLConnectionCallback;
153 #endif
154     }
155     ~CallbackGuard()
156     {
157 #ifdef BUILDING_ON_TIGER
158         ASSERT(inNSURLConnectionCallback > 0);
159         --inNSURLConnectionCallback;
160 #endif
161     }
162 };
163
164 #ifndef BUILDING_ON_TIGER
165 static String encodeBasicAuthorization(const String& user, const String& password)
166 {
167     return base64Encode((user + ":" + password).utf8());
168 }
169 #endif
170
171 ResourceHandleInternal::~ResourceHandleInternal()
172 {
173 }
174
175 ResourceHandle::~ResourceHandle()
176 {
177     releaseDelegate();
178     d->m_currentWebChallenge.setAuthenticationClient(0);
179
180     LOG(Network, "Handle %p destroyed", this);
181 }
182
183 static const double MaxFoundationVersionWithoutdidSendBodyDataDelegate = 677.21;
184 bool ResourceHandle::didSendBodyDataDelegateExists()
185 {
186     return NSFoundationVersionNumber > MaxFoundationVersionWithoutdidSendBodyDataDelegate;
187 }
188
189 void ResourceHandle::createNSURLConnection(id delegate, bool shouldUseCredentialStorage, bool shouldContentSniff)
190 {
191     // Credentials for ftp can only be passed in URL, the connection:didReceiveAuthenticationChallenge: delegate call won't be made.
192     if ((!d->m_user.isEmpty() || !d->m_pass.isEmpty())
193 #ifndef BUILDING_ON_TIGER
194      && !firstRequest().url().protocolInHTTPFamily() // On Tiger, always pass credentials in URL, so that they get stored even if the request gets cancelled right away.
195 #endif
196     ) {
197         KURL urlWithCredentials(firstRequest().url());
198         urlWithCredentials.setUser(d->m_user);
199         urlWithCredentials.setPass(d->m_pass);
200         firstRequest().setURL(urlWithCredentials);
201     }
202
203     // If a URL already has cookies, then we'll relax the 3rd party cookie policy and accept new cookies.
204     NSHTTPCookieStorage *sharedStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
205     if ([sharedStorage cookieAcceptPolicy] == NSHTTPCookieAcceptPolicyOnlyFromMainDocumentDomain && [[sharedStorage cookiesForURL:firstRequest().url()] count])
206         firstRequest().setFirstPartyForCookies(firstRequest().url());
207
208 #if !defined(BUILDING_ON_TIGER)
209     if (shouldUseCredentialStorage && firstRequest().url().protocolInHTTPFamily()) {
210         if (d->m_user.isEmpty() && d->m_pass.isEmpty()) {
211             // <rdar://problem/7174050> - For URLs that match the paths of those previously challenged for HTTP Basic authentication, 
212             // try and reuse the credential preemptively, as allowed by RFC 2617.
213             d->m_initialCredential = CredentialStorage::get(firstRequest().url());
214         } else {
215             // If there is already a protection space known for the URL, update stored credentials before sending a request.
216             // This makes it possible to implement logout by sending an XMLHttpRequest with known incorrect credentials, and aborting it immediately
217             // (so that an authentication dialog doesn't pop up).
218             CredentialStorage::set(Credential(d->m_user, d->m_pass, CredentialPersistenceNone), firstRequest().url());
219         }
220     }
221         
222     if (!d->m_initialCredential.isEmpty()) {
223         // FIXME: Support Digest authentication, and Proxy-Authorization.
224         String authHeader = "Basic " + encodeBasicAuthorization(d->m_initialCredential.user(), d->m_initialCredential.password());
225         firstRequest().addHTTPHeaderField("Authorization", authHeader);
226     }
227
228     NSURLRequest *nsRequest = firstRequest().nsURLRequest();
229     if (!shouldContentSniff) {
230         NSMutableURLRequest *mutableRequest = [[nsRequest copy] autorelease];
231         wkSetNSURLRequestShouldContentSniff(mutableRequest, NO);
232         nsRequest = mutableRequest;
233     }
234
235 #if !defined(BUILDING_ON_LEOPARD)
236     ASSERT([NSURLConnection instancesRespondToSelector:@selector(_initWithRequest:delegate:usesCache:maxContentLength:startImmediately:connectionProperties:)]);
237     static bool supportsSettingConnectionProperties = true;
238 #else
239     static bool supportsSettingConnectionProperties = [NSURLConnection instancesRespondToSelector:@selector(_initWithRequest:delegate:usesCache:maxContentLength:startImmediately:connectionProperties:)];
240 #endif
241
242     if (supportsSettingConnectionProperties) {
243         NSDictionary *sessionID = shouldUseCredentialStorage ? [NSDictionary dictionary] : [NSDictionary dictionaryWithObject:@"WebKitPrivateSession" forKey:@"_kCFURLConnectionSessionID"];
244         NSDictionary *propertyDictionary = [NSDictionary dictionaryWithObject:sessionID forKey:@"kCFURLConnectionSocketStreamProperties"];
245         d->m_connection.adoptNS([[NSURLConnection alloc] _initWithRequest:nsRequest delegate:delegate usesCache:YES maxContentLength:0 startImmediately:NO connectionProperties:propertyDictionary]);
246         return;
247     }
248
249     d->m_connection.adoptNS([[NSURLConnection alloc] initWithRequest:nsRequest delegate:delegate startImmediately:NO]);
250     return;
251
252 #else
253     // Building on Tiger. Don't use WebCore credential storage, don't try to disable content sniffing.
254     UNUSED_PARAM(shouldUseCredentialStorage);
255     UNUSED_PARAM(shouldContentSniff);
256     d->m_connection.adoptNS([[NSURLConnection alloc] initWithRequest:firstRequest().nsURLRequest() delegate:delegate]);
257 #endif
258 }
259
260 bool ResourceHandle::start(NetworkingContext* context)
261 {
262     if (!context)
263         return false;
264
265     BEGIN_BLOCK_OBJC_EXCEPTIONS;
266
267     // If NetworkingContext is invalid then we are no longer attached to a Page,
268     // this must be an attempted load from an unload event handler, so let's just block it.
269     if (!context->isValid())
270         return false;
271
272 #ifndef NDEBUG
273     isInitializingConnection = YES;
274 #endif
275
276     ASSERT(!d->m_proxy);
277     d->m_proxy.adoptNS(wkCreateNSURLConnectionDelegateProxy());
278     [static_cast<WebCoreNSURLConnectionDelegateProxy*>(d->m_proxy.get()) setDelegate:ResourceHandle::delegate()];
279
280     bool shouldUseCredentialStorage = !client() || client()->shouldUseCredentialStorage(this);
281
282     if (!ResourceHandle::didSendBodyDataDelegateExists())
283         associateStreamWithResourceHandle([firstRequest().nsURLRequest() HTTPBodyStream], this);
284
285 #ifdef BUILDING_ON_TIGER
286     // A conditional request sent by WebCore (e.g. to update appcache) can be for a resource that is not cacheable by NSURLConnection,
287     // which can get confused and fail to load it in this case.
288     if (firstRequest().isConditional())
289         firstRequest().setCachePolicy(ReloadIgnoringCacheData);
290 #endif
291
292     d->m_needsSiteSpecificQuirks = context->needsSiteSpecificQuirks();
293
294     createNSURLConnection(
295         d->m_proxy.get(),
296         shouldUseCredentialStorage,
297         d->m_shouldContentSniff || context->localFileContentSniffingEnabled());
298
299 #ifndef BUILDING_ON_TIGER
300     bool scheduled = false;
301     if (SchedulePairHashSet* scheduledPairs = context->scheduledRunLoopPairs()) {
302         SchedulePairHashSet::iterator end = scheduledPairs->end();
303         for (SchedulePairHashSet::iterator it = scheduledPairs->begin(); it != end; ++it) {
304             if (NSRunLoop *runLoop = (*it)->nsRunLoop()) {
305                 [connection() scheduleInRunLoop:runLoop forMode:(NSString *)(*it)->mode()];
306                 scheduled = true;
307             }
308         }
309     }
310
311     // Start the connection if we did schedule with at least one runloop.
312     // We can't start the connection until we have one runloop scheduled.
313     if (scheduled)
314         [connection() start];
315     else
316         d->m_startWhenScheduled = true;
317 #endif
318
319 #ifndef NDEBUG
320     isInitializingConnection = NO;
321 #endif
322
323     LOG(Network, "Handle %p starting connection %p for %@", this, connection(), firstRequest().nsURLRequest());
324     
325     if (d->m_connection) {
326         if (d->m_defersLoading)
327             wkSetNSURLConnectionDefersCallbacks(connection(), YES);
328
329         return true;
330     }
331
332     END_BLOCK_OBJC_EXCEPTIONS;
333
334     return false;
335 }
336
337 void ResourceHandle::cancel()
338 {
339     LOG(Network, "Handle %p cancel connection %p", this, d->m_connection.get());
340
341     // Leaks were seen on HTTP tests without this; can be removed once <rdar://problem/6886937> is fixed.
342     if (d->m_currentMacChallenge)
343         [[d->m_currentMacChallenge sender] cancelAuthenticationChallenge:d->m_currentMacChallenge];
344
345     if (!ResourceHandle::didSendBodyDataDelegateExists())
346         disassociateStreamWithResourceHandle([firstRequest().nsURLRequest() HTTPBodyStream]);
347     [d->m_connection.get() cancel];
348 }
349
350 void ResourceHandle::platformSetDefersLoading(bool defers)
351 {
352     if (d->m_connection)
353         wkSetNSURLConnectionDefersCallbacks(d->m_connection.get(), defers);
354 }
355
356 void ResourceHandle::schedule(SchedulePair* pair)
357 {
358 #ifndef BUILDING_ON_TIGER
359     NSRunLoop *runLoop = pair->nsRunLoop();
360     if (!runLoop)
361         return;
362     [d->m_connection.get() scheduleInRunLoop:runLoop forMode:(NSString *)pair->mode()];
363     if (d->m_startWhenScheduled) {
364         [d->m_connection.get() start];
365         d->m_startWhenScheduled = false;
366     }
367 #else
368     UNUSED_PARAM(pair);
369 #endif
370 }
371
372 void ResourceHandle::unschedule(SchedulePair* pair)
373 {
374 #ifndef BUILDING_ON_TIGER
375     if (NSRunLoop *runLoop = pair->nsRunLoop())
376         [d->m_connection.get() unscheduleFromRunLoop:runLoop forMode:(NSString *)pair->mode()];
377 #else
378     UNUSED_PARAM(pair);
379 #endif
380 }
381
382 WebCoreResourceHandleAsDelegate *ResourceHandle::delegate()
383 {
384     if (!d->m_delegate) {
385         WebCoreResourceHandleAsDelegate *delegate = [[WebCoreResourceHandleAsDelegate alloc] initWithHandle:this];
386         d->m_delegate = delegate;
387         [delegate release];
388     }
389     return d->m_delegate.get();
390 }
391
392 void ResourceHandle::releaseDelegate()
393 {
394     if (!d->m_delegate)
395         return;
396     if (d->m_proxy)
397         [d->m_proxy.get() setDelegate:nil];
398     [d->m_delegate.get() detachHandle];
399     d->m_delegate = nil;
400 }
401
402 bool ResourceHandle::supportsBufferedData()
403 {
404     static bool supportsBufferedData = [NSURLConnection instancesRespondToSelector:@selector(_bufferedData)];
405     return supportsBufferedData;
406 }
407
408 PassRefPtr<SharedBuffer> ResourceHandle::bufferedData()
409 {
410     if (ResourceHandle::supportsBufferedData())
411         return SharedBuffer::wrapNSData([d->m_connection.get() _bufferedData]);
412
413     return 0;
414 }
415
416 id ResourceHandle::releaseProxy()
417 {
418     id proxy = [[d->m_proxy.get() retain] autorelease];
419     d->m_proxy = nil;
420     [proxy setDelegate:nil];
421     return proxy;
422 }
423
424 NSURLConnection *ResourceHandle::connection() const
425 {
426     return d->m_connection.get();
427 }
428
429 bool ResourceHandle::loadsBlocked()
430 {
431 #ifndef BUILDING_ON_TIGER
432     return false;
433 #else
434     // On Tiger, if we're in an NSURLConnection callback, that blocks all other NSURLConnection callbacks.
435     // On Leopard and newer, it blocks only callbacks on that same NSURLConnection object, which is not
436     // a problem in practice.
437     return inNSURLConnectionCallback != 0;
438 #endif
439 }
440
441 bool ResourceHandle::willLoadFromCache(ResourceRequest& request, Frame*)
442 {
443 #ifndef BUILDING_ON_TIGER
444     request.setCachePolicy(ReturnCacheDataDontLoad);
445     NSURLResponse *nsURLResponse = nil;
446     BEGIN_BLOCK_OBJC_EXCEPTIONS;
447     
448    [NSURLConnection sendSynchronousRequest:request.nsURLRequest() returningResponse:&nsURLResponse error:nil];
449     
450     END_BLOCK_OBJC_EXCEPTIONS;
451     
452     return nsURLResponse;
453 #else
454     // <rdar://problem/6803217> - Re-enable after <rdar://problem/6786454> is resolved.
455     UNUSED_PARAM(request);
456     return false;
457 #endif
458 }
459
460 void ResourceHandle::loadResourceSynchronously(NetworkingContext* context, const ResourceRequest& request, StoredCredentials storedCredentials, ResourceError& error, ResourceResponse& response, Vector<char>& data)
461 {
462     LOG(Network, "ResourceHandle::loadResourceSynchronously:%@ allowStoredCredentials:%u", request.nsURLRequest(), storedCredentials);
463
464 #if ENABLE(BLOB)
465     if (request.url().protocolIs("blob"))
466         if (blobRegistry().loadResourceSynchronously(request, error, response, data))
467             return;
468 #endif
469
470     NSError *nsError = nil;
471     NSURLResponse *nsURLResponse = nil;
472     NSData *result = nil;
473
474     ASSERT(!request.isEmpty());
475     
476 #ifndef BUILDING_ON_TIGER
477     OwnPtr<WebCoreSynchronousLoaderClient> client = WebCoreSynchronousLoaderClient::create();
478     client->setAllowStoredCredentials(storedCredentials == AllowStoredCredentials);
479
480     RefPtr<ResourceHandle> handle = adoptRef(new ResourceHandle(request, client.get(), false /*defersLoading*/, true /*shouldContentSniff*/));
481
482     if (context && handle->d->m_scheduledFailureType != NoFailure) {
483         error = context->blockedError(request);
484         return;
485     }
486
487     handle->createNSURLConnection(
488         handle->delegate(), // A synchronous request cannot turn into a download, so there is no need to proxy the delegate.
489         storedCredentials == AllowStoredCredentials,
490         handle->shouldContentSniff() || (context && context->localFileContentSniffingEnabled()));
491
492     [handle->connection() scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:WebCoreSynchronousLoaderRunLoopMode];
493     [handle->connection() start];
494     
495     while (!client->isDone())
496         [[NSRunLoop currentRunLoop] runMode:WebCoreSynchronousLoaderRunLoopMode beforeDate:[NSDate distantFuture]];
497
498     result = client->data();
499     nsURLResponse = client->response();
500     nsError = client->error();
501     
502     [handle->connection() cancel];
503
504 #else
505     UNUSED_PARAM(storedCredentials);
506     UNUSED_PARAM(context);
507     NSURLRequest *firstRequest = request.nsURLRequest();
508
509     // If a URL already has cookies, then we'll relax the 3rd party cookie policy and accept new cookies.
510     NSHTTPCookieStorage *sharedStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
511     if ([sharedStorage cookieAcceptPolicy] == NSHTTPCookieAcceptPolicyOnlyFromMainDocumentDomain && [[sharedStorage cookiesForURL:[firstRequest URL]] count]) {
512         NSMutableURLRequest *mutableRequest = [[firstRequest mutableCopy] autorelease];
513         [mutableRequest setMainDocumentURL:[mutableRequest URL]];
514         firstRequest = mutableRequest;
515     }
516
517     BEGIN_BLOCK_OBJC_EXCEPTIONS;
518     result = [NSURLConnection sendSynchronousRequest:firstRequest returningResponse:&nsURLResponse error:&nsError];
519     END_BLOCK_OBJC_EXCEPTIONS;
520 #endif
521
522     if (!nsError)
523         response = nsURLResponse;
524     else {
525         response = ResourceResponse(request.url(), String(), 0, String(), String());
526         if ([nsError domain] == NSURLErrorDomain)
527             switch ([nsError code]) {
528                 case NSURLErrorUserCancelledAuthentication:
529                     // FIXME: we should really return the actual HTTP response, but sendSynchronousRequest doesn't provide us with one.
530                     response.setHTTPStatusCode(401);
531                     break;
532                 default:
533                     response.setHTTPStatusCode([nsError code]);
534             }
535         else
536             response.setHTTPStatusCode(404);
537     }
538     
539     data.resize([result length]);
540     memcpy(data.data(), [result bytes], [result length]);
541     
542     error = nsError;
543 }
544
545 void ResourceHandle::willSendRequest(ResourceRequest& request, const ResourceResponse& redirectResponse)
546 {
547     const KURL& url = request.url();
548     d->m_user = url.user();
549     d->m_pass = url.pass();
550     d->m_lastHTTPMethod = request.httpMethod();
551     request.removeCredentials();
552     if (!protocolHostAndPortAreEqual(request.url(), redirectResponse.url()))
553         request.clearHTTPAuthorization();
554
555     client()->willSendRequest(this, request, redirectResponse);
556 }
557
558 bool ResourceHandle::shouldUseCredentialStorage()
559 {
560     if (client())
561         return client()->shouldUseCredentialStorage(this);
562
563     return false;
564 }
565
566 void ResourceHandle::didReceiveAuthenticationChallenge(const AuthenticationChallenge& challenge)
567 {
568     ASSERT(!d->m_currentMacChallenge);
569     ASSERT(d->m_currentWebChallenge.isNull());
570     // Since NSURLConnection networking relies on keeping a reference to the original NSURLAuthenticationChallenge,
571     // we make sure that is actually present
572     ASSERT(challenge.nsURLAuthenticationChallenge());
573
574     if (!d->m_user.isNull() && !d->m_pass.isNull()) {
575         NSURLCredential *credential = [[NSURLCredential alloc] initWithUser:d->m_user
576                                                                    password:d->m_pass
577                                                                 persistence:NSURLCredentialPersistenceForSession];
578         d->m_currentMacChallenge = challenge.nsURLAuthenticationChallenge();
579         d->m_currentWebChallenge = challenge;
580         receivedCredential(challenge, core(credential));
581         [credential release];
582         // FIXME: Per the specification, the user shouldn't be asked for credentials if there were incorrect ones provided explicitly.
583         d->m_user = String();
584         d->m_pass = String();
585         return;
586     }
587
588 #ifndef BUILDING_ON_TIGER
589     if (!client() || client()->shouldUseCredentialStorage(this)) {
590         if (!d->m_initialCredential.isEmpty() || challenge.previousFailureCount()) {
591             // The stored credential wasn't accepted, stop using it.
592             // There is a race condition here, since a different credential might have already been stored by another ResourceHandle,
593             // but the observable effect should be very minor, if any.
594             CredentialStorage::remove(challenge.protectionSpace());
595         }
596
597         if (!challenge.previousFailureCount()) {
598             Credential credential = CredentialStorage::get(challenge.protectionSpace());
599             if (!credential.isEmpty() && credential != d->m_initialCredential) {
600                 ASSERT(credential.persistence() == CredentialPersistenceNone);
601                 if (challenge.failureResponse().httpStatusCode() == 401) {
602                     // Store the credential back, possibly adding it as a default for this directory.
603                     CredentialStorage::set(credential, challenge.protectionSpace(), firstRequest().url());
604                 }
605                 [challenge.sender() useCredential:mac(credential) forAuthenticationChallenge:mac(challenge)];
606                 return;
607             }
608         }
609     }
610 #endif
611
612     d->m_currentMacChallenge = challenge.nsURLAuthenticationChallenge();
613     d->m_currentWebChallenge = core(d->m_currentMacChallenge);
614     d->m_currentWebChallenge.setAuthenticationClient(this);
615
616     if (client())
617         client()->didReceiveAuthenticationChallenge(this, d->m_currentWebChallenge);
618 }
619
620 void ResourceHandle::didCancelAuthenticationChallenge(const AuthenticationChallenge& challenge)
621 {
622     ASSERT(d->m_currentMacChallenge);
623     ASSERT(d->m_currentMacChallenge == challenge.nsURLAuthenticationChallenge());
624     ASSERT(!d->m_currentWebChallenge.isNull());
625
626     if (client())
627         client()->didCancelAuthenticationChallenge(this, challenge);
628 }
629
630 #if USE(PROTECTION_SPACE_AUTH_CALLBACK)
631 bool ResourceHandle::canAuthenticateAgainstProtectionSpace(const ProtectionSpace& protectionSpace)
632 {
633     if (client())
634         return client()->canAuthenticateAgainstProtectionSpace(this, protectionSpace);
635         
636     return false;
637 }
638 #endif
639
640 void ResourceHandle::receivedCredential(const AuthenticationChallenge& challenge, const Credential& credential)
641 {
642     ASSERT(!challenge.isNull());
643     if (challenge != d->m_currentWebChallenge)
644         return;
645
646     // FIXME: Support empty credentials. Currently, an empty credential cannot be stored in WebCore credential storage, as that's empty value for its map.
647     if (credential.isEmpty()) {
648         receivedRequestToContinueWithoutCredential(challenge);
649         return;
650     }
651
652 #ifdef BUILDING_ON_TIGER
653     if (credential.persistence() == CredentialPersistenceNone) {
654         // NSURLCredentialPersistenceNone doesn't work on Tiger, so we have to use session persistence.
655         Credential webCredential(credential.user(), credential.password(), CredentialPersistenceForSession);
656         [[d->m_currentMacChallenge sender] useCredential:mac(webCredential) forAuthenticationChallenge:d->m_currentMacChallenge];
657     } else
658 #else
659     if (credential.persistence() == CredentialPersistenceForSession && (!d->m_needsSiteSpecificQuirks || ![[[mac(challenge) protectionSpace] host] isEqualToString:@"gallery.me.com"])) {
660         // Manage per-session credentials internally, because once NSURLCredentialPersistenceForSession is used, there is no way
661         // to ignore it for a particular request (short of removing it altogether).
662         // <rdar://problem/6867598> gallery.me.com is temporarily whitelisted, so that QuickTime plug-in could see the credentials.
663         Credential webCredential(credential, CredentialPersistenceNone);
664         KURL urlToStore;
665         if (challenge.failureResponse().httpStatusCode() == 401)
666             urlToStore = firstRequest().url();
667         CredentialStorage::set(webCredential, core([d->m_currentMacChallenge protectionSpace]), urlToStore);
668         [[d->m_currentMacChallenge sender] useCredential:mac(webCredential) forAuthenticationChallenge:d->m_currentMacChallenge];
669     } else
670 #endif
671         [[d->m_currentMacChallenge sender] useCredential:mac(credential) forAuthenticationChallenge:d->m_currentMacChallenge];
672
673     clearAuthentication();
674 }
675
676 void ResourceHandle::receivedRequestToContinueWithoutCredential(const AuthenticationChallenge& challenge)
677 {
678     ASSERT(!challenge.isNull());
679     if (challenge != d->m_currentWebChallenge)
680         return;
681
682     [[d->m_currentMacChallenge sender] continueWithoutCredentialForAuthenticationChallenge:d->m_currentMacChallenge];
683
684     clearAuthentication();
685 }
686
687 void ResourceHandle::receivedCancellation(const AuthenticationChallenge& challenge)
688 {
689     if (challenge != d->m_currentWebChallenge)
690         return;
691
692     if (client())
693         client()->receivedCancellation(this, challenge);
694 }
695
696 RetainPtr<CFURLStorageSessionRef> ResourceHandle::createPrivateBrowsingStorageSession(CFStringRef identifier)
697 {
698     return RetainPtr<CFURLStorageSessionRef>(AdoptCF, wkCreatePrivateStorageSession(identifier));
699 }
700
701 String ResourceHandle::privateBrowsingStorageSessionIdentifierDefaultBase()
702 {
703     return String([[NSBundle mainBundle] bundleIdentifier]);
704 }
705
706 } // namespace WebCore
707
708 @implementation WebCoreResourceHandleAsDelegate
709
710 - (id)initWithHandle:(ResourceHandle*)handle
711 {
712     self = [self init];
713     if (!self)
714         return nil;
715     m_handle = handle;
716     return self;
717 }
718
719 - (void)detachHandle
720 {
721     m_handle = 0;
722 }
723
724 - (NSURLRequest *)connection:(NSURLConnection *)connection willSendRequest:(NSURLRequest *)newRequest redirectResponse:(NSURLResponse *)redirectResponse
725 {
726     UNUSED_PARAM(connection);
727
728     // the willSendRequest call may cancel this load, in which case self could be deallocated
729     RetainPtr<WebCoreResourceHandleAsDelegate> protect(self);
730
731     if (!m_handle || !m_handle->client())
732         return nil;
733     
734     // See <rdar://problem/5380697> .  This is a workaround for a behavior change in CFNetwork where willSendRequest gets called more often.
735     if (!redirectResponse)
736         return newRequest;
737
738 #if !LOG_DISABLED
739     if ([redirectResponse isKindOfClass:[NSHTTPURLResponse class]])
740         LOG(Network, "Handle %p delegate connection:%p willSendRequest:%@ redirectResponse:%d, Location:<%@>", m_handle, connection, [newRequest description], static_cast<int>([(id)redirectResponse statusCode]), [[(id)redirectResponse allHeaderFields] objectForKey:@"Location"]);
741     else
742         LOG(Network, "Handle %p delegate connection:%p willSendRequest:%@ redirectResponse:non-HTTP", m_handle, connection, [newRequest description]); 
743 #endif
744
745     if ([redirectResponse isKindOfClass:[NSHTTPURLResponse class]] && [(NSHTTPURLResponse *)redirectResponse statusCode] == 307) {
746         String lastHTTPMethod = m_handle->lastHTTPMethod();
747         if (!equalIgnoringCase(lastHTTPMethod, String([newRequest HTTPMethod]))) {
748             NSMutableURLRequest *mutableRequest = [newRequest mutableCopy];
749             [mutableRequest setHTTPMethod:lastHTTPMethod];
750     
751             FormData* body = m_handle->firstRequest().httpBody();
752             if (!equalIgnoringCase(lastHTTPMethod, "GET") && body && !body->isEmpty())
753                 WebCore::setHTTPBody(mutableRequest, body);
754
755             String originalContentType = m_handle->firstRequest().httpContentType();
756             if (!originalContentType.isEmpty())
757                 [mutableRequest setValue:originalContentType forHTTPHeaderField:@"Content-Type"];
758
759             newRequest = [mutableRequest autorelease];
760         }
761     }
762
763     CallbackGuard guard;
764     ResourceRequest request = newRequest;
765
766     // Should not set Referer after a redirect from a secure resource to non-secure one.
767     if (!request.url().protocolIs("https") && protocolIs(request.httpReferrer(), "https"))
768         request.clearHTTPReferrer();
769
770     m_handle->willSendRequest(request, redirectResponse);
771
772     if (!ResourceHandle::didSendBodyDataDelegateExists()) {
773         // The client may change the request's body stream, in which case we have to re-associate
774         // the handle with the new stream so upload progress callbacks continue to work correctly.
775         NSInputStream* oldBodyStream = [newRequest HTTPBodyStream];
776         NSInputStream* newBodyStream = [request.nsURLRequest() HTTPBodyStream];
777         if (oldBodyStream != newBodyStream) {
778             disassociateStreamWithResourceHandle(oldBodyStream);
779             associateStreamWithResourceHandle(newBodyStream, m_handle);
780         }
781     }
782
783     return request.nsURLRequest();
784 }
785
786 - (BOOL)connectionShouldUseCredentialStorage:(NSURLConnection *)connection
787 {
788     UNUSED_PARAM(connection);
789
790     LOG(Network, "Handle %p delegate connectionShouldUseCredentialStorage:%p", m_handle, connection);
791
792     if (!m_handle)
793         return NO;
794
795     CallbackGuard guard;
796     return m_handle->shouldUseCredentialStorage();
797 }
798
799 - (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
800 {
801     UNUSED_PARAM(connection);
802
803     LOG(Network, "Handle %p delegate connection:%p didReceiveAuthenticationChallenge:%p", m_handle, connection, challenge);
804
805     if (!m_handle)
806         return;
807     CallbackGuard guard;
808     m_handle->didReceiveAuthenticationChallenge(core(challenge));
809 }
810
811 - (void)connection:(NSURLConnection *)connection didCancelAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
812 {
813     UNUSED_PARAM(connection);
814
815     LOG(Network, "Handle %p delegate connection:%p didCancelAuthenticationChallenge:%p", m_handle, connection, challenge);
816
817     if (!m_handle)
818         return;
819     CallbackGuard guard;
820     m_handle->didCancelAuthenticationChallenge(core(challenge));
821 }
822
823 #if USE(PROTECTION_SPACE_AUTH_CALLBACK)
824 - (BOOL)connection:(NSURLConnection *)unusedConnection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace
825 {
826     UNUSED_PARAM(unusedConnection);
827     
828     if (!m_handle)
829         return NO;
830         
831     CallbackGuard guard;
832     return m_handle->canAuthenticateAgainstProtectionSpace(core(protectionSpace));
833 }
834 #endif
835
836 - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)r
837 {
838     UNUSED_PARAM(connection);
839
840     LOG(Network, "Handle %p delegate connection:%p didReceiveResponse:%p (HTTP status %d, reported MIMEType '%s')", m_handle, connection, r, [r respondsToSelector:@selector(statusCode)] ? [(id)r statusCode] : 0, [[r MIMEType] UTF8String]);
841
842     if (!m_handle || !m_handle->client())
843         return;
844     CallbackGuard guard;
845
846     // Avoid MIME type sniffing if the response comes back as 304 Not Modified.
847     int statusCode = [r respondsToSelector:@selector(statusCode)] ? [(id)r statusCode] : 0;
848     if (statusCode != 304)
849         [r adjustMIMETypeIfNecessary];
850
851     if ([m_handle->firstRequest().nsURLRequest() _propertyForKey:@"ForceHTMLMIMEType"])
852         [r _setMIMEType:@"text/html"];
853
854 #if ENABLE(WML)
855     const KURL& url = [r URL];
856     if (url.isLocalFile()) {
857         // FIXME: Workaround for <rdar://problem/6917571>: The WML file extension ".wml" is not mapped to
858         // the right MIME type, work around that CFNetwork problem, to unbreak WML support for local files.
859         const String& path = url.path();
860   
861         DEFINE_STATIC_LOCAL(const String, wmlExt, (".wml"));
862         if (path.endsWith(wmlExt, false)) {
863             static NSString* defaultMIMETypeString = [(NSString*) defaultMIMEType() retain];
864             if ([[r MIMEType] isEqualToString:defaultMIMETypeString])
865                 [r _setMIMEType:@"text/vnd.wap.wml"];
866         }
867     }
868 #endif
869
870     m_handle->client()->didReceiveResponse(m_handle, r);
871 }
872
873 - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data lengthReceived:(long long)lengthReceived
874 {
875     UNUSED_PARAM(connection);
876
877     LOG(Network, "Handle %p delegate connection:%p didReceiveData:%p lengthReceived:%lld", m_handle, connection, data, lengthReceived);
878
879     if (!m_handle || !m_handle->client())
880         return;
881     // FIXME: If we get more than 2B bytes in a single chunk, this code won't do the right thing.
882     // However, with today's computers and networking speeds, this won't happen in practice.
883     // Could be an issue with a giant local file.
884     CallbackGuard guard;
885     m_handle->client()->didReceiveData(m_handle, (const char*)[data bytes], [data length], static_cast<int>(lengthReceived));
886 }
887
888 - (void)connection:(NSURLConnection *)connection willStopBufferingData:(NSData *)data
889 {
890     UNUSED_PARAM(connection);
891
892     LOG(Network, "Handle %p delegate connection:%p willStopBufferingData:%p", m_handle, connection, data);
893
894     if (!m_handle || !m_handle->client())
895         return;
896     // FIXME: If we get a resource with more than 2B bytes, this code won't do the right thing.
897     // However, with today's computers and networking speeds, this won't happen in practice.
898     // Could be an issue with a giant local file.
899     CallbackGuard guard;
900     m_handle->client()->willStopBufferingData(m_handle, (const char*)[data bytes], static_cast<int>([data length]));
901 }
902
903 - (void)connection:(NSURLConnection *)connection didSendBodyData:(NSInteger)bytesWritten totalBytesWritten:(NSInteger)totalBytesWritten totalBytesExpectedToWrite:(NSInteger)totalBytesExpectedToWrite
904 {
905     UNUSED_PARAM(connection);
906     UNUSED_PARAM(bytesWritten);
907
908     LOG(Network, "Handle %p delegate connection:%p didSendBodyData:%d totalBytesWritten:%d totalBytesExpectedToWrite:%d", m_handle, connection, bytesWritten, totalBytesWritten, totalBytesExpectedToWrite);
909
910     if (!m_handle || !m_handle->client())
911         return;
912     CallbackGuard guard;
913     m_handle->client()->didSendData(m_handle, totalBytesWritten, totalBytesExpectedToWrite);
914 }
915
916 - (void)connectionDidFinishLoading:(NSURLConnection *)connection
917 {
918     UNUSED_PARAM(connection);
919
920     LOG(Network, "Handle %p delegate connectionDidFinishLoading:%p", m_handle, connection);
921
922     if (!m_handle || !m_handle->client())
923         return;
924     CallbackGuard guard;
925
926     if (!ResourceHandle::didSendBodyDataDelegateExists())
927         disassociateStreamWithResourceHandle([m_handle->firstRequest().nsURLRequest() HTTPBodyStream]);
928
929     m_handle->client()->didFinishLoading(m_handle, 0);
930 }
931
932 - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
933 {
934     UNUSED_PARAM(connection);
935
936     LOG(Network, "Handle %p delegate connection:%p didFailWithError:%@", m_handle, connection, error);
937
938     if (!m_handle || !m_handle->client())
939         return;
940     CallbackGuard guard;
941
942     if (!ResourceHandle::didSendBodyDataDelegateExists())
943         disassociateStreamWithResourceHandle([m_handle->firstRequest().nsURLRequest() HTTPBodyStream]);
944
945     m_handle->client()->didFail(m_handle, error);
946 }
947
948 #ifdef BUILDING_ON_TIGER
949 - (void)_callConnectionWillCacheResponseWithInfo:(NSMutableDictionary *)info
950 {
951     NSURLConnection *connection = [info objectForKey:@"connection"];
952     NSCachedURLResponse *cachedResponse = [info objectForKey:@"cachedResponse"];
953     NSCachedURLResponse *result = [self connection:connection willCacheResponse:cachedResponse];
954     if (result)
955         [info setObject:result forKey:@"result"];
956 }
957 #endif
958
959 - (NSCachedURLResponse *)connection:(NSURLConnection *)connection willCacheResponse:(NSCachedURLResponse *)cachedResponse
960 {
961     LOG(Network, "Handle %p delegate connection:%p willCacheResponse:%p", m_handle, connection, cachedResponse);
962
963 #ifdef BUILDING_ON_TIGER
964     // On Tiger CFURLConnection can sometimes call the connection:willCacheResponse: delegate method on
965     // a secondary thread instead of the main thread. If this happens perform the work on the main thread.
966     if (!pthread_main_np()) {
967         NSMutableDictionary *info = [[NSMutableDictionary alloc] init];
968         if (connection)
969             [info setObject:connection forKey:@"connection"];
970         if (cachedResponse)
971             [info setObject:cachedResponse forKey:@"cachedResponse"];
972
973         // Include synchronous url connection's mode as an acceptable run loopmode
974         // <rdar://problem/5511842>
975         NSArray *modes = [[NSArray alloc] initWithObjects:(NSString *)kCFRunLoopCommonModes, @"NSSynchronousURLConnection_PrivateMode", nil];        
976         [self performSelectorOnMainThread:@selector(_callConnectionWillCacheResponseWithInfo:) withObject:info waitUntilDone:YES modes:modes];
977         [modes release];
978
979         NSCachedURLResponse *result = [[info valueForKey:@"result"] retain];
980         [info release];
981
982         return [result autorelease];
983     }
984 #else
985     UNUSED_PARAM(connection);
986 #endif
987
988 #ifndef NDEBUG
989     if (isInitializingConnection)
990         LOG_ERROR("connection:willCacheResponse: was called inside of [NSURLConnection initWithRequest:delegate:] (4067625)");
991 #endif
992
993     if (!m_handle || !m_handle->client())
994         return nil;
995
996     CallbackGuard guard;
997     
998     NSCachedURLResponse *newResponse = m_handle->client()->willCacheResponse(m_handle, cachedResponse);
999     if (newResponse != cachedResponse)
1000         return newResponse;
1001     
1002     CacheStoragePolicy policy = static_cast<CacheStoragePolicy>([newResponse storagePolicy]);
1003         
1004     m_handle->client()->willCacheResponse(m_handle, policy);
1005
1006     if (static_cast<NSURLCacheStoragePolicy>(policy) != [newResponse storagePolicy])
1007         newResponse = [[[NSCachedURLResponse alloc] initWithResponse:[newResponse response]
1008                                                                 data:[newResponse data]
1009                                                             userInfo:[newResponse userInfo]
1010                                                        storagePolicy:static_cast<NSURLCacheStoragePolicy>(policy)] autorelease];
1011
1012     return newResponse;
1013 }
1014
1015 @end
1016
1017 #ifndef BUILDING_ON_TIGER
1018
1019 WebCoreSynchronousLoaderClient::~WebCoreSynchronousLoaderClient()
1020 {
1021     [m_response release];
1022     [m_data release];
1023     [m_error release];
1024 }
1025
1026 void WebCoreSynchronousLoaderClient::willSendRequest(ResourceHandle* handle, ResourceRequest& request, const ResourceResponse& /*redirectResponse*/)
1027 {
1028     // FIXME: This needs to be fixed to follow the redirect correctly even for cross-domain requests.
1029     if (!protocolHostAndPortAreEqual(handle->firstRequest().url(), request.url())) {
1030         ASSERT(!m_error);
1031         m_error = [[NSError alloc] initWithDomain:NSURLErrorDomain code:NSURLErrorBadServerResponse userInfo:nil];
1032         m_isDone = true;
1033         request = 0;
1034         return;
1035     }
1036 }
1037
1038 bool WebCoreSynchronousLoaderClient::shouldUseCredentialStorage(ResourceHandle*)
1039 {
1040     // FIXME: We should ask FrameLoaderClient whether using credential storage is globally forbidden.
1041     return m_allowStoredCredentials;
1042 }
1043
1044 #if USE(PROTECTION_SPACE_AUTH_CALLBACK)
1045 bool WebCoreSynchronousLoaderClient::canAuthenticateAgainstProtectionSpace(ResourceHandle*, const ProtectionSpace&)
1046 {
1047     // FIXME: We should ask FrameLoaderClient.
1048     return true;
1049 }
1050 #endif
1051
1052 void WebCoreSynchronousLoaderClient::didReceiveAuthenticationChallenge(ResourceHandle*, const AuthenticationChallenge& challenge)
1053 {
1054     // FIXME: The user should be asked for credentials, as in async case.
1055     [challenge.sender() continueWithoutCredentialForAuthenticationChallenge:challenge.nsURLAuthenticationChallenge()];
1056 }
1057
1058 void WebCoreSynchronousLoaderClient::didReceiveResponse(ResourceHandle*, const ResourceResponse& response)
1059 {
1060     [m_response release];
1061     m_response = [response.nsURLResponse() copy];
1062 }
1063
1064 void WebCoreSynchronousLoaderClient::didReceiveData(ResourceHandle*, const char* data, int length, int /*lengthReceived*/)
1065 {
1066     if (!m_data)
1067         m_data = [[NSMutableData alloc] init];
1068     [m_data appendBytes:data length:length];
1069 }
1070
1071 void WebCoreSynchronousLoaderClient::didFinishLoading(ResourceHandle*, double)
1072 {
1073     m_isDone = true;
1074 }
1075
1076 void WebCoreSynchronousLoaderClient::didFail(ResourceHandle*, const ResourceError& error)
1077 {
1078     ASSERT(!m_error);
1079
1080     m_error = [error copy];
1081     m_isDone = true;
1082 }
1083
1084 #endif // BUILDING_ON_TIGER
1085
1086 #endif // !USE(CFNETWORK)