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| 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 "modules/filesystem/DOMFileSystem.h" | |
| 32 | |
| 33 #include "core/fileapi/BlobCallback.h" | |
| 34 #include "modules/filesystem/DOMFilePath.h" | |
| 35 #include "modules/filesystem/DirectoryEntry.h" | |
| 36 #include "modules/filesystem/FileEntry.h" | |
| 37 #include "modules/filesystem/FileSystemCallbacks.h" | |
| 38 #include "modules/filesystem/FileWriter.h" | |
| 39 #include "modules/filesystem/FileWriterBaseCallback.h" | |
| 40 #include "modules/filesystem/FileWriterCallback.h" | |
| 41 #include "modules/filesystem/MetadataCallback.h" | |
| 42 #include "platform/FileMetadata.h" | |
| 43 #include "platform/weborigin/SecurityOrigin.h" | |
| 44 #include "public/platform/Platform.h" | |
| 45 #include "public/platform/WebFileSystem.h" | |
| 46 #include "public/platform/WebFileSystemCallbacks.h" | |
| 47 #include "public/platform/WebSecurityOrigin.h" | |
| 48 #include "wtf/text/StringBuilder.h" | |
| 49 #include "wtf/text/WTFString.h" | |
| 50 #include <memory> | |
| 51 | |
| 52 namespace blink { | |
| 53 | |
| 54 // static | |
| 55 DOMFileSystem* DOMFileSystem::create(ExecutionContext* context, | |
| 56 const String& name, | |
| 57 FileSystemType type, | |
| 58 const KURL& rootURL) { | |
| 59 DOMFileSystem* fileSystem(new DOMFileSystem(context, name, type, rootURL)); | |
| 60 fileSystem->suspendIfNeeded(); | |
| 61 return fileSystem; | |
| 62 } | |
| 63 | |
| 64 DOMFileSystem* DOMFileSystem::createIsolatedFileSystem( | |
| 65 ExecutionContext* context, | |
| 66 const String& filesystemId) { | |
| 67 if (filesystemId.isEmpty()) | |
| 68 return 0; | |
| 69 | |
| 70 StringBuilder filesystemName; | |
| 71 filesystemName.append(Platform::current()->fileSystemCreateOriginIdentifier( | |
| 72 WebSecurityOrigin(context->getSecurityOrigin()))); | |
| 73 filesystemName.append(":Isolated_"); | |
| 74 filesystemName.append(filesystemId); | |
| 75 | |
| 76 // The rootURL created here is going to be attached to each filesystem request | |
| 77 // and is to be validated each time the request is being handled. | |
| 78 StringBuilder rootURL; | |
| 79 rootURL.append("filesystem:"); | |
| 80 rootURL.append(context->getSecurityOrigin()->toString()); | |
| 81 rootURL.append('/'); | |
| 82 rootURL.append(isolatedPathPrefix); | |
| 83 rootURL.append('/'); | |
| 84 rootURL.append(filesystemId); | |
| 85 rootURL.append('/'); | |
| 86 | |
| 87 return DOMFileSystem::create(context, filesystemName.toString(), | |
| 88 FileSystemTypeIsolated, | |
| 89 KURL(ParsedURLString, rootURL.toString())); | |
| 90 } | |
| 91 | |
| 92 DOMFileSystem::DOMFileSystem(ExecutionContext* context, | |
| 93 const String& name, | |
| 94 FileSystemType type, | |
| 95 const KURL& rootURL) | |
| 96 : DOMFileSystemBase(context, name, type, rootURL), | |
| 97 ActiveScriptWrappable(this), | |
| 98 ActiveDOMObject(context), | |
| 99 m_numberOfPendingCallbacks(0), | |
| 100 m_rootEntry(DirectoryEntry::create(this, DOMFilePath::root)) {} | |
| 101 | |
| 102 DirectoryEntry* DOMFileSystem::root() const { | |
| 103 return m_rootEntry.get(); | |
| 104 } | |
| 105 | |
| 106 void DOMFileSystem::addPendingCallbacks() { | |
| 107 ++m_numberOfPendingCallbacks; | |
| 108 } | |
| 109 | |
| 110 void DOMFileSystem::removePendingCallbacks() { | |
| 111 ASSERT(m_numberOfPendingCallbacks > 0); | |
| 112 --m_numberOfPendingCallbacks; | |
| 113 } | |
| 114 | |
| 115 bool DOMFileSystem::hasPendingActivity() const { | |
| 116 ASSERT(m_numberOfPendingCallbacks >= 0); | |
| 117 return m_numberOfPendingCallbacks; | |
| 118 } | |
| 119 | |
| 120 void DOMFileSystem::reportError(ErrorCallbackBase* errorCallback, | |
| 121 FileError::ErrorCode fileError) { | |
| 122 reportError(getExecutionContext(), errorCallback, fileError); | |
| 123 } | |
| 124 | |
| 125 void DOMFileSystem::reportError(ExecutionContext* executionContext, | |
| 126 ErrorCallbackBase* errorCallback, | |
| 127 FileError::ErrorCode fileError) { | |
| 128 if (errorCallback) | |
| 129 scheduleCallback( | |
| 130 executionContext, | |
| 131 createSameThreadTask(&ErrorCallbackBase::invoke, | |
| 132 wrapPersistent(errorCallback), fileError)); | |
| 133 } | |
| 134 | |
| 135 namespace { | |
| 136 | |
| 137 class ConvertToFileWriterCallback : public FileWriterBaseCallback { | |
| 138 public: | |
| 139 static ConvertToFileWriterCallback* create(FileWriterCallback* callback) { | |
| 140 return new ConvertToFileWriterCallback(callback); | |
| 141 } | |
| 142 | |
| 143 DEFINE_INLINE_TRACE() { | |
| 144 visitor->trace(m_callback); | |
| 145 FileWriterBaseCallback::trace(visitor); | |
| 146 } | |
| 147 | |
| 148 void handleEvent(FileWriterBase* fileWriterBase) { | |
| 149 m_callback->handleEvent(static_cast<FileWriter*>(fileWriterBase)); | |
| 150 } | |
| 151 | |
| 152 private: | |
| 153 explicit ConvertToFileWriterCallback(FileWriterCallback* callback) | |
| 154 : m_callback(callback) {} | |
| 155 Member<FileWriterCallback> m_callback; | |
| 156 }; | |
| 157 | |
| 158 } // namespace | |
| 159 | |
| 160 void DOMFileSystem::createWriter(const FileEntry* fileEntry, | |
| 161 FileWriterCallback* successCallback, | |
| 162 ErrorCallbackBase* errorCallback) { | |
| 163 ASSERT(fileEntry); | |
| 164 | |
| 165 if (!fileSystem()) { | |
| 166 reportError(errorCallback, FileError::kAbortErr); | |
| 167 return; | |
| 168 } | |
| 169 | |
| 170 FileWriter* fileWriter = FileWriter::create(getExecutionContext()); | |
| 171 FileWriterBaseCallback* conversionCallback = | |
| 172 ConvertToFileWriterCallback::create(successCallback); | |
| 173 std::unique_ptr<AsyncFileSystemCallbacks> callbacks = | |
| 174 FileWriterBaseCallbacks::create(fileWriter, conversionCallback, | |
| 175 errorCallback, m_context); | |
| 176 fileSystem()->createFileWriter(createFileSystemURL(fileEntry), fileWriter, | |
| 177 std::move(callbacks)); | |
| 178 } | |
| 179 | |
| 180 void DOMFileSystem::createFile(const FileEntry* fileEntry, | |
| 181 BlobCallback* successCallback, | |
| 182 ErrorCallbackBase* errorCallback) { | |
| 183 KURL fileSystemURL = createFileSystemURL(fileEntry); | |
| 184 if (!fileSystem()) { | |
| 185 reportError(errorCallback, FileError::kAbortErr); | |
| 186 return; | |
| 187 } | |
| 188 | |
| 189 fileSystem()->createSnapshotFileAndReadMetadata( | |
| 190 fileSystemURL, | |
| 191 SnapshotFileCallback::create(this, fileEntry->name(), fileSystemURL, | |
| 192 successCallback, errorCallback, m_context)); | |
| 193 } | |
| 194 | |
| 195 DEFINE_TRACE(DOMFileSystem) { | |
| 196 DOMFileSystemBase::trace(visitor); | |
| 197 ActiveDOMObject::trace(visitor); | |
| 198 visitor->trace(m_rootEntry); | |
| 199 } | |
| 200 | |
| 201 } // namespace blink | |
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Chromium Code Reviews
Issue 2297043002:
Web expose FileSystemFileEntry, FileSystemDirectoryEntry and friends (Closed)
