1/* 2 * Copyright (C) 2010 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#include "config.h" 32 33#include "ThreadableBlobRegistry.h" 34 35#include "BlobData.h" 36#include "BlobRegistry.h" 37#include "BlobURL.h" 38#include "SecurityOrigin.h" 39#include <wtf/HashMap.h> 40#include <wtf/MainThread.h> 41#include <wtf/RefPtr.h> 42#include <wtf/ThreadSpecific.h> 43#include <wtf/text/StringHash.h> 44 45using WTF::ThreadSpecific; 46 47namespace WebCore { 48 49struct BlobRegistryContext { 50 WTF_MAKE_FAST_ALLOCATED; 51public: 52 BlobRegistryContext(const KURL& url, PassOwnPtr<BlobData> blobData) 53 : url(url.copy()) 54 , blobData(blobData) 55 { 56 this->blobData->detachFromCurrentThread(); 57 } 58 59 BlobRegistryContext(const KURL& url, const KURL& srcURL) 60 : url(url.copy()) 61 , srcURL(srcURL.copy()) 62 { 63 } 64 65 BlobRegistryContext(const KURL& url) 66 : url(url.copy()) 67 { 68 } 69 70 KURL url; 71 KURL srcURL; 72 OwnPtr<BlobData> blobData; 73}; 74 75#if ENABLE(BLOB) 76 77typedef HashMap<String, RefPtr<SecurityOrigin> > BlobUrlOriginMap; 78static ThreadSpecific<BlobUrlOriginMap>& originMap() 79{ 80 AtomicallyInitializedStatic(ThreadSpecific<BlobUrlOriginMap>*, map = new ThreadSpecific<BlobUrlOriginMap>); 81 return *map; 82} 83 84static void registerBlobURLTask(void* context) 85{ 86 OwnPtr<BlobRegistryContext> blobRegistryContext = adoptPtr(static_cast<BlobRegistryContext*>(context)); 87 blobRegistry().registerBlobURL(blobRegistryContext->url, blobRegistryContext->blobData.release()); 88} 89 90void ThreadableBlobRegistry::registerBlobURL(const KURL& url, PassOwnPtr<BlobData> blobData) 91{ 92 if (isMainThread()) 93 blobRegistry().registerBlobURL(url, blobData); 94 else { 95 OwnPtr<BlobRegistryContext> context = adoptPtr(new BlobRegistryContext(url, blobData)); 96 callOnMainThread(®isterBlobURLTask, context.leakPtr()); 97 } 98} 99 100static void registerBlobURLFromTask(void* context) 101{ 102 OwnPtr<BlobRegistryContext> blobRegistryContext = adoptPtr(static_cast<BlobRegistryContext*>(context)); 103 blobRegistry().registerBlobURL(blobRegistryContext->url, blobRegistryContext->srcURL); 104} 105 106void ThreadableBlobRegistry::registerBlobURL(SecurityOrigin* origin, const KURL& url, const KURL& srcURL) 107{ 108 // If the blob URL contains null origin, as in the context with unique security origin or file URL, save the mapping between url and origin so that the origin can be retrived when doing security origin check. 109 if (origin && BlobURL::getOrigin(url) == "null") 110 originMap()->add(url.string(), origin); 111 112 if (isMainThread()) 113 blobRegistry().registerBlobURL(url, srcURL); 114 else { 115 OwnPtr<BlobRegistryContext> context = adoptPtr(new BlobRegistryContext(url, srcURL)); 116 callOnMainThread(®isterBlobURLFromTask, context.leakPtr()); 117 } 118} 119 120static void unregisterBlobURLTask(void* context) 121{ 122 OwnPtr<BlobRegistryContext> blobRegistryContext = adoptPtr(static_cast<BlobRegistryContext*>(context)); 123 blobRegistry().unregisterBlobURL(blobRegistryContext->url); 124} 125 126void ThreadableBlobRegistry::unregisterBlobURL(const KURL& url) 127{ 128 if (BlobURL::getOrigin(url) == "null") 129 originMap()->remove(url.string()); 130 131 if (isMainThread()) 132 blobRegistry().unregisterBlobURL(url); 133 else { 134 OwnPtr<BlobRegistryContext> context = adoptPtr(new BlobRegistryContext(url)); 135 callOnMainThread(&unregisterBlobURLTask, context.leakPtr()); 136 } 137} 138 139PassRefPtr<SecurityOrigin> ThreadableBlobRegistry::getCachedOrigin(const KURL& url) 140{ 141 return originMap()->get(url.string()); 142} 143 144#else 145 146void ThreadableBlobRegistry::registerBlobURL(const KURL&, PassOwnPtr<BlobData>) 147{ 148} 149 150void ThreadableBlobRegistry::registerBlobURL(SecurityOrigin*, const KURL&, const KURL&) 151{ 152} 153 154void ThreadableBlobRegistry::unregisterBlobURL(const KURL&) 155{ 156} 157 158PassRefPtr<SecurityOrigin> ThreadableBlobRegistry::getCachedOrigin(const KURL&) 159{ 160 return 0; 161} 162 163#endif // ENABL(BLOB) 164 165} // namespace WebCore 166