1/* 2 * Copyright (C) 2009, 2012 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 "CachedRawResourceClient.h" 35#include "CachedResourceHandle.h" 36#include "FrameLoaderTypes.h" 37#include "ThreadableLoader.h" 38#include <wtf/Forward.h> 39#include <wtf/OwnPtr.h> 40#include <wtf/PassRefPtr.h> 41#include <wtf/RefCounted.h> 42#include <wtf/RefPtr.h> 43#include <wtf/text/WTFString.h> 44 45namespace WebCore { 46 class CachedRawResource; 47 class Document; 48 class URL; 49 class ResourceRequest; 50 class SecurityOrigin; 51 class ThreadableLoaderClient; 52 53 class DocumentThreadableLoader : public RefCounted<DocumentThreadableLoader>, public ThreadableLoader, private CachedRawResourceClient { 54 WTF_MAKE_FAST_ALLOCATED; 55 public: 56 static void loadResourceSynchronously(Document&, const ResourceRequest&, ThreadableLoaderClient&, const ThreadableLoaderOptions&); 57 static PassRefPtr<DocumentThreadableLoader> create(Document&, ThreadableLoaderClient&, const ResourceRequest&, const ThreadableLoaderOptions&); 58 virtual ~DocumentThreadableLoader(); 59 60 virtual void cancel(); 61 virtual void setDefersLoading(bool); 62 63 using RefCounted<DocumentThreadableLoader>::ref; 64 using RefCounted<DocumentThreadableLoader>::deref; 65 66 protected: 67 virtual void refThreadableLoader() { ref(); } 68 virtual void derefThreadableLoader() { deref(); } 69 70 private: 71 enum BlockingBehavior { 72 LoadSynchronously, 73 LoadAsynchronously 74 }; 75 76 DocumentThreadableLoader(Document&, ThreadableLoaderClient&, BlockingBehavior, const ResourceRequest&, const ThreadableLoaderOptions&); 77 78 void clearResource(); 79 80 // CachedRawResourceClient 81 virtual void dataSent(CachedResource*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) override; 82 virtual void responseReceived(CachedResource*, const ResourceResponse&) override; 83 virtual void dataReceived(CachedResource*, const char* data, int dataLength) override; 84 virtual void redirectReceived(CachedResource*, ResourceRequest&, const ResourceResponse&) override; 85 virtual void notifyFinished(CachedResource*) override; 86 87 void didReceiveResponse(unsigned long identifier, const ResourceResponse&); 88 void didReceiveData(unsigned long identifier, const char* data, int dataLength); 89 void didFinishLoading(unsigned long identifier, double finishTime); 90 void didFail(unsigned long identifier, const ResourceError&); 91 void makeCrossOriginAccessRequest(const ResourceRequest&); 92 void makeSimpleCrossOriginAccessRequest(const ResourceRequest& request); 93 void makeCrossOriginAccessRequestWithPreflight(const ResourceRequest& request); 94 void preflightSuccess(); 95 void preflightFailure(unsigned long identifier, const String& url, const String& errorDescription); 96 97 void loadRequest(const ResourceRequest&, SecurityCheckPolicy); 98 bool isAllowedRedirect(const URL&); 99 100 SecurityOrigin* securityOrigin() const; 101 102 CachedResourceHandle<CachedRawResource> m_resource; 103 ThreadableLoaderClient* m_client; 104 Document& m_document; 105 ThreadableLoaderOptions m_options; 106 bool m_sameOriginRequest; 107 bool m_simpleRequest; 108 bool m_async; 109 OwnPtr<ResourceRequest> m_actualRequest; // non-null during Access Control preflight checks 110 }; 111 112} // namespace WebCore 113 114#endif // DocumentThreadableLoader_h 115