1 /* 2 * Copyright (C) 2009, 2012 Google Inc. All rights reserved. 3 * Copyright (C) 2013, Intel Corporation 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef DocumentThreadableLoader_h 33 #define DocumentThreadableLoader_h 34 35 #include "core/fetch/RawResource.h" 36 #include "core/fetch/ResourceOwner.h" 37 #include "core/loader/ThreadableLoader.h" 38 #include "platform/Timer.h" 39 #include "platform/network/ResourceError.h" 40 #include "wtf/Forward.h" 41 #include "wtf/OwnPtr.h" 42 #include "wtf/PassRefPtr.h" 43 #include "wtf/RefCounted.h" 44 #include "wtf/text/WTFString.h" 45 46 namespace WebCore { 47 48 class Document; 49 class KURL; 50 class ResourceRequest; 51 class SecurityOrigin; 52 class ThreadableLoaderClient; 53 54 class DocumentThreadableLoader : public RefCounted<DocumentThreadableLoader>, public ThreadableLoader, private ResourceOwner<RawResource> { 55 WTF_MAKE_FAST_ALLOCATED; 56 public: 57 static void loadResourceSynchronously(Document*, const ResourceRequest&, ThreadableLoaderClient&, const ThreadableLoaderOptions&); 58 static PassRefPtr<DocumentThreadableLoader> create(Document*, ThreadableLoaderClient*, const ResourceRequest&, const ThreadableLoaderOptions&); 59 virtual ~DocumentThreadableLoader(); 60 61 virtual void cancel(); 62 virtual void setDefersLoading(bool); 63 64 using RefCounted<DocumentThreadableLoader>::ref; 65 using RefCounted<DocumentThreadableLoader>::deref; 66 67 protected: refThreadableLoader()68 virtual void refThreadableLoader() { ref(); } derefThreadableLoader()69 virtual void derefThreadableLoader() { deref(); } 70 71 private: 72 enum BlockingBehavior { 73 LoadSynchronously, 74 LoadAsynchronously 75 }; 76 77 DocumentThreadableLoader(Document*, ThreadableLoaderClient*, BlockingBehavior, const ResourceRequest&, const ThreadableLoaderOptions&); 78 79 // RawResourceClient 80 virtual void dataSent(Resource*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent); 81 virtual void responseReceived(Resource*, const ResourceResponse&); 82 virtual void dataReceived(Resource*, const char* data, int dataLength); 83 virtual void redirectReceived(Resource*, ResourceRequest&, const ResourceResponse&); 84 virtual void notifyFinished(Resource*); 85 virtual void dataDownloaded(Resource*, int); 86 87 void cancelWithError(const ResourceError&); 88 void didReceiveResponse(unsigned long identifier, const ResourceResponse&); 89 void didReceiveData(unsigned long identifier, const char* data, int dataLength); 90 void didFinishLoading(unsigned long identifier, double finishTime); 91 void didFail(unsigned long identifier, const ResourceError&); 92 void didTimeout(Timer<DocumentThreadableLoader>*); 93 void makeCrossOriginAccessRequest(const ResourceRequest&); 94 void makeSimpleCrossOriginAccessRequest(const ResourceRequest&); 95 void makeCrossOriginAccessRequestWithPreflight(const ResourceRequest&); 96 void preflightSuccess(); 97 void preflightFailure(unsigned long identifier, const String& url, const String& errorDescription); 98 99 void loadRequest(const ResourceRequest&, SecurityCheckPolicy); 100 bool isAllowedRedirect(const KURL&) const; 101 bool isAllowedByPolicy(const KURL&) const; 102 103 SecurityOrigin* securityOrigin() const; 104 bool checkCrossOriginAccessRedirectionUrl(const KURL&, String& errorDescription); 105 106 ThreadableLoaderClient* m_client; 107 Document* m_document; 108 ThreadableLoaderOptions m_options; 109 bool m_sameOriginRequest; 110 bool m_simpleRequest; 111 bool m_async; 112 OwnPtr<ResourceRequest> m_actualRequest; // non-null during Access Control preflight checks 113 Timer<DocumentThreadableLoader> m_timeoutTimer; 114 }; 115 116 } // namespace WebCore 117 118 #endif // DocumentThreadableLoader_h 119