blob: 59c21362a4967e98e1a4318dab6c109c917386f2 [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 "modules/filesystem/DOMFileSystemSync.h"
#include "bindings/core/v8/ExceptionState.h"
#include "core/fileapi/File.h"
#include "core/fileapi/FileError.h"
#include "modules/filesystem/DOMFilePath.h"
#include "modules/filesystem/DirectoryEntrySync.h"
#include "modules/filesystem/ErrorCallback.h"
#include "modules/filesystem/FileEntrySync.h"
#include "modules/filesystem/FileSystemCallbacks.h"
#include "modules/filesystem/FileWriterBaseCallback.h"
#include "modules/filesystem/FileWriterSync.h"
#include "platform/FileMetadata.h"
#include "public/platform/WebFileSystem.h"
#include "public/platform/WebFileSystemCallbacks.h"
#include "wtf/PtrUtil.h"
#include <memory>
namespace blink {
class FileWriterBase;
DOMFileSystemSync* DOMFileSystemSync::create(DOMFileSystemBase* fileSystem)
{
return new DOMFileSystemSync(fileSystem->m_context, fileSystem->name(), fileSystem->type(), fileSystem->rootURL());
}
DOMFileSystemSync::DOMFileSystemSync(ExecutionContext* context, const String& name, FileSystemType type, const KURL& rootURL)
: DOMFileSystemBase(context, name, type, rootURL)
, m_rootEntry(DirectoryEntrySync::create(this, DOMFilePath::root))
{
}
DOMFileSystemSync::~DOMFileSystemSync()
{
}
void DOMFileSystemSync::reportError(ErrorCallbackBase* errorCallback, FileError::ErrorCode fileError)
{
errorCallback->invoke(fileError);
}
DirectoryEntrySync* DOMFileSystemSync::root()
{
return m_rootEntry.get();
}
namespace {
class CreateFileHelper final : public AsyncFileSystemCallbacks {
public:
class CreateFileResult : public GarbageCollected<CreateFileResult> {
public:
static CreateFileResult* create()
{
return new CreateFileResult();
}
bool m_failed;
int m_code;
Member<File> m_file;
DEFINE_INLINE_TRACE()
{
visitor->trace(m_file);
}
private:
CreateFileResult()
: m_failed(false)
, m_code(0)
{
}
};
static std::unique_ptr<AsyncFileSystemCallbacks> create(CreateFileResult* result, const String& name, const KURL& url, FileSystemType type)
{
return wrapUnique(static_cast<AsyncFileSystemCallbacks*>(new CreateFileHelper(result, name, url, type)));
}
void didFail(int code) override
{
m_result->m_failed = true;
m_result->m_code = code;
}
~CreateFileHelper() override
{
}
void didCreateSnapshotFile(const FileMetadata& metadata, PassRefPtr<BlobDataHandle> snapshot) override
{
// We can't directly use the snapshot blob data handle because the content type on it hasn't been set.
// The |snapshot| param is here to provide a a chain of custody thru thread bridging that is held onto until
// *after* we've coined a File with a new handle that has the correct type set on it. This allows the
// blob storage system to track when a temp file can and can't be safely deleted.
m_result->m_file = DOMFileSystemBase::createFile(metadata, m_url, m_type, m_name);
}
bool shouldBlockUntilCompletion() const override
{
return true;
}
private:
CreateFileHelper(CreateFileResult* result, const String& name, const KURL& url, FileSystemType type)
: m_result(result)
, m_name(name)
, m_url(url)
, m_type(type)
{
}
Persistent<CreateFileResult> m_result;
String m_name;
KURL m_url;
FileSystemType m_type;
};
} // namespace
File* DOMFileSystemSync::createFile(const FileEntrySync* fileEntry, ExceptionState& exceptionState)
{
KURL fileSystemURL = createFileSystemURL(fileEntry);
CreateFileHelper::CreateFileResult* result(CreateFileHelper::CreateFileResult::create());
fileSystem()->createSnapshotFileAndReadMetadata(fileSystemURL, CreateFileHelper::create(result, fileEntry->name(), fileSystemURL, type()));
if (result->m_failed) {
exceptionState.throwDOMException(result->m_code, "Could not create '" + fileEntry->name() + "'.");
return nullptr;
}
return result->m_file.get();
}
namespace {
class ReceiveFileWriterCallback final : public FileWriterBaseCallback {
public:
static ReceiveFileWriterCallback* create()
{
return new ReceiveFileWriterCallback();
}
void handleEvent(FileWriterBase*) override
{
}
private:
ReceiveFileWriterCallback()
{
}
};
class LocalErrorCallback final : public ErrorCallbackBase {
public:
static LocalErrorCallback* create(FileError::ErrorCode& errorCode)
{
return new LocalErrorCallback(errorCode);
}
void invoke(FileError::ErrorCode error) override
{
DCHECK_NE(error, FileError::OK);
m_errorCode = error;
}
private:
explicit LocalErrorCallback(FileError::ErrorCode& errorCode)
: m_errorCode(errorCode)
{
}
FileError::ErrorCode& m_errorCode;
};
} // namespace
FileWriterSync* DOMFileSystemSync::createWriter(const FileEntrySync* fileEntry, ExceptionState& exceptionState)
{
ASSERT(fileEntry);
FileWriterSync* fileWriter = FileWriterSync::create();
ReceiveFileWriterCallback* successCallback = ReceiveFileWriterCallback::create();
FileError::ErrorCode errorCode = FileError::OK;
LocalErrorCallback* errorCallback = LocalErrorCallback::create(errorCode);
std::unique_ptr<AsyncFileSystemCallbacks> callbacks = FileWriterBaseCallbacks::create(fileWriter, successCallback, errorCallback, m_context);
callbacks->setShouldBlockUntilCompletion(true);
fileSystem()->createFileWriter(createFileSystemURL(fileEntry), fileWriter, std::move(callbacks));
if (errorCode != FileError::OK) {
FileError::throwDOMException(exceptionState, errorCode);
return 0;
}
return fileWriter;
}
DEFINE_TRACE(DOMFileSystemSync)
{
DOMFileSystemBase::trace(visitor);
visitor->trace(m_rootEntry);
}
} // namespace blink