Home | History | Annotate | Download | only in loader 
      1 /*
      2  * Copyright (C) 2009 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef DocumentThreadableLoader_h
     32 #define DocumentThreadableLoader_h
     33 
     34 #include "FrameLoaderTypes.h"
     35 #include "SubresourceLoaderClient.h"
     36 #include "ThreadableLoader.h"
     37 #include <wtf/Forward.h>
     38 #include <wtf/OwnPtr.h>
     39 #include <wtf/PassRefPtr.h>
     40 #include <wtf/RefCounted.h>
     41 #include <wtf/RefPtr.h>
     42 #include <wtf/text/WTFString.h>
     43 
     44 namespace WebCore {
     45     class Document;
     46     class KURL;
     47     class ResourceRequest;
     48     class ThreadableLoaderClient;
     49 
     50     class DocumentThreadableLoader : public RefCounted<DocumentThreadableLoader>, public ThreadableLoader, private SubresourceLoaderClient  {
     51         WTF_MAKE_FAST_ALLOCATED;
     52     public:
     53         static void loadResourceSynchronously(Document*, const ResourceRequest&, ThreadableLoaderClient&, const ThreadableLoaderOptions&);
     54         static PassRefPtr<DocumentThreadableLoader> create(Document*, ThreadableLoaderClient*, const ResourceRequest&, const ThreadableLoaderOptions&, const String& optionalOutgoingReferrer = String());
     55         virtual ~DocumentThreadableLoader();
     56 
     57         virtual void cancel();
     58         virtual void setDefersLoading(bool);
     59 
     60         using RefCounted<DocumentThreadableLoader>::ref;
     61         using RefCounted<DocumentThreadableLoader>::deref;
     62 
     63     protected:
     64         virtual void refThreadableLoader() { ref(); }
     65         virtual void derefThreadableLoader() { deref(); }
     66 
     67     private:
     68         enum BlockingBehavior {
     69             LoadSynchronously,
     70             LoadAsynchronously
     71         };
     72 
     73         DocumentThreadableLoader(Document*, ThreadableLoaderClient*, BlockingBehavior, const ResourceRequest&, const ThreadableLoaderOptions&, const String& optionalOutgoingReferrer);
     74 
     75         virtual void willSendRequest(SubresourceLoader*, ResourceRequest&, const ResourceResponse& redirectResponse);
     76         virtual void didSendData(SubresourceLoader*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
     77 
     78         virtual void didReceiveResponse(SubresourceLoader*, const ResourceResponse&);
     79         virtual void didReceiveData(SubresourceLoader*, const char*, int dataLength);
     80         virtual void didReceiveCachedMetadata(SubresourceLoader*, const char*, int dataLength);
     81         virtual void didFinishLoading(SubresourceLoader*, double);
     82         virtual void didFail(SubresourceLoader*, const ResourceError&);
     83 
     84         virtual bool getShouldUseCredentialStorage(SubresourceLoader*, bool& shouldUseCredentialStorage);
     85         virtual void didReceiveAuthenticationChallenge(SubresourceLoader*, const AuthenticationChallenge&);
     86         virtual void receivedCancellation(SubresourceLoader*, const AuthenticationChallenge&);
     87 
     88         void didFinishLoading(unsigned long identifier, double finishTime);
     89         void makeSimpleCrossOriginAccessRequest(const ResourceRequest& request);
     90         void makeCrossOriginAccessRequestWithPreflight(const ResourceRequest& request);
     91         void preflightSuccess();
     92         void preflightFailure(const String& url, const String& errorDescription);
     93 
     94         void loadRequest(const ResourceRequest&, SecurityCheckPolicy);
     95         bool isAllowedRedirect(const KURL&);
     96 
     97         RefPtr<SubresourceLoader> m_loader;
     98         ThreadableLoaderClient* m_client;
     99         Document* m_document;
    100         ThreadableLoaderOptions m_options;
    101         String m_optionalOutgoingReferrer;
    102         bool m_sameOriginRequest;
    103         bool m_async;
    104         OwnPtr<ResourceRequest> m_actualRequest;  // non-null during Access Control preflight checks
    105     };
    106 
    107 } // namespace WebCore
    108 
    109 #endif // DocumentThreadableLoader_h
    110