blob: 2c8e5890bf38a08f599737eed5a1d7249df54093 [file] [log] [blame]
/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "modules/filesystem/DOMFileSystem.h"
#include "modules/filesystem/DOMFilePath.h"
#include "modules/filesystem/DirectoryEntry.h"
#include "modules/filesystem/ErrorCallback.h"
#include "modules/filesystem/FileCallback.h"
#include "modules/filesystem/FileEntry.h"
#include "modules/filesystem/FileSystemCallbacks.h"
#include "modules/filesystem/FileWriter.h"
#include "modules/filesystem/FileWriterBaseCallback.h"
#include "modules/filesystem/FileWriterCallback.h"
#include "modules/filesystem/MetadataCallback.h"
#include "platform/FileMetadata.h"
#include "platform/weborigin/DatabaseIdentifier.h"
#include "platform/weborigin/SecurityOrigin.h"
#include "public/platform/WebFileSystem.h"
#include "public/platform/WebFileSystemCallbacks.h"
#include "wtf/OwnPtr.h"
#include "wtf/text/StringBuilder.h"
#include "wtf/text/WTFString.h"
namespace blink {
// static
DOMFileSystem* DOMFileSystem::create(ExecutionContext* context, const String& name, FileSystemType type, const KURL& rootURL)
{
DOMFileSystem* fileSystem(new DOMFileSystem(context, name, type, rootURL));
fileSystem->suspendIfNeeded();
return fileSystem;
}
DOMFileSystem* DOMFileSystem::createIsolatedFileSystem(ExecutionContext* context, const String& filesystemId)
{
if (filesystemId.isEmpty())
return 0;
StringBuilder filesystemName;
filesystemName.append(createDatabaseIdentifierFromSecurityOrigin(context->securityOrigin()));
filesystemName.appendLiteral(":Isolated_");
filesystemName.append(filesystemId);
// The rootURL created here is going to be attached to each filesystem request and
// is to be validated each time the request is being handled.
StringBuilder rootURL;
rootURL.appendLiteral("filesystem:");
rootURL.append(context->securityOrigin()->toString());
rootURL.append('/');
rootURL.append(isolatedPathPrefix);
rootURL.append('/');
rootURL.append(filesystemId);
rootURL.append('/');
return DOMFileSystem::create(context, filesystemName.toString(), FileSystemTypeIsolated, KURL(ParsedURLString, rootURL.toString()));
}
DOMFileSystem::DOMFileSystem(ExecutionContext* context, const String& name, FileSystemType type, const KURL& rootURL)
: DOMFileSystemBase(context, name, type, rootURL)
, ActiveDOMObject(context)
, m_numberOfPendingCallbacks(0)
{
}
DirectoryEntry* DOMFileSystem::root()
{
return DirectoryEntry::create(this, DOMFilePath::root);
}
void DOMFileSystem::addPendingCallbacks()
{
++m_numberOfPendingCallbacks;
}
void DOMFileSystem::removePendingCallbacks()
{
ASSERT(m_numberOfPendingCallbacks > 0);
--m_numberOfPendingCallbacks;
}
bool DOMFileSystem::hasPendingActivity() const
{
ASSERT(m_numberOfPendingCallbacks >= 0);
return m_numberOfPendingCallbacks;
}
void DOMFileSystem::reportError(ErrorCallback* errorCallback, FileError* fileError)
{
scheduleCallback(errorCallback, fileError);
}
namespace {
class ConvertToFileWriterCallback : public FileWriterBaseCallback {
public:
static ConvertToFileWriterCallback* create(FileWriterCallback* callback)
{
return new ConvertToFileWriterCallback(callback);
}
void trace(Visitor* visitor)
{
visitor->trace(m_callback);
FileWriterBaseCallback::trace(visitor);
}
void handleEvent(FileWriterBase* fileWriterBase)
{
m_callback->handleEvent(static_cast<FileWriter*>(fileWriterBase));
}
private:
explicit ConvertToFileWriterCallback(FileWriterCallback* callback)
: m_callback(callback)
{
}
Member<FileWriterCallback> m_callback;
};
}
void DOMFileSystem::createWriter(const FileEntry* fileEntry, FileWriterCallback* successCallback, ErrorCallback* errorCallback)
{
ASSERT(fileEntry);
if (!fileSystem()) {
reportError(errorCallback, FileError::create(FileError::ABORT_ERR));
return;
}
FileWriter* fileWriter = FileWriter::create(executionContext());
FileWriterBaseCallback* conversionCallback = ConvertToFileWriterCallback::create(successCallback);
OwnPtr<AsyncFileSystemCallbacks> callbacks = FileWriterBaseCallbacks::create(fileWriter, conversionCallback, errorCallback, m_context);
fileSystem()->createFileWriter(createFileSystemURL(fileEntry), fileWriter, callbacks.release());
}
void DOMFileSystem::createFile(const FileEntry* fileEntry, FileCallback* successCallback, ErrorCallback* errorCallback)
{
KURL fileSystemURL = createFileSystemURL(fileEntry);
if (!fileSystem()) {
reportError(errorCallback, FileError::create(FileError::ABORT_ERR));
return;
}
fileSystem()->createSnapshotFileAndReadMetadata(fileSystemURL, SnapshotFileCallback::create(this, fileEntry->name(), fileSystemURL, successCallback, errorCallback, m_context));
}
} // namespace blink