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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef STORAGE_BROWSER_FILE_SYSTEM_FILE_SYSTEM_OPERATION_IMPL_H_
#define STORAGE_BROWSER_FILE_SYSTEM_FILE_SYSTEM_OPERATION_IMPL_H_
#include <stdint.h>
#include <memory>
#include <vector>
#include "base/component_export.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/types/pass_key.h"
#include "components/services/storage/public/cpp/quota_error_or.h"
#include "storage/browser/blob/scoped_file.h"
#include "storage/browser/file_system/file_system_operation.h"
#include "storage/browser/file_system/file_system_operation_context.h"
#include "storage/browser/file_system/file_system_url.h"
#include "storage/browser/file_system/file_writer_delegate.h"
#include "third_party/blink/public/mojom/quota/quota_types.mojom.h"
namespace storage {
class AsyncFileUtil;
class FileSystemContext;
class FileSystemOperation;
class RecursiveOperationDelegate;
// The default implementation of FileSystemOperation for file systems.
class COMPONENT_EXPORT(STORAGE_BROWSER) FileSystemOperationImpl
: public FileSystemOperation {
public:
// Exposed for use with std::make_unique. Instances should be obtained from
// the factory method FileSystemOperation::Create().
FileSystemOperationImpl(
OperationType type,
const FileSystemURL& url,
FileSystemContext* file_system_context,
std::unique_ptr<FileSystemOperationContext> operation_context,
base::PassKey<FileSystemOperation>);
FileSystemOperationImpl(const FileSystemOperationImpl&) = delete;
FileSystemOperationImpl& operator=(const FileSystemOperationImpl&) = delete;
~FileSystemOperationImpl() override;
// FileSystemOperation overrides.
void CreateFile(const FileSystemURL& url,
bool exclusive,
StatusCallback callback) override;
void CreateDirectory(const FileSystemURL& url,
bool exclusive,
bool recursive,
StatusCallback callback) override;
void Copy(const FileSystemURL& src_url,
const FileSystemURL& dest_url,
CopyOrMoveOptionSet options,
ErrorBehavior error_behavior,
std::unique_ptr<CopyOrMoveHookDelegate> copy_or_move_hook_delegate,
StatusCallback callback) override;
void Move(const FileSystemURL& src_url,
const FileSystemURL& dest_url,
CopyOrMoveOptionSet options,
ErrorBehavior error_behavior,
std::unique_ptr<CopyOrMoveHookDelegate> copy_or_move_hook_delegate,
StatusCallback callback) override;
void DirectoryExists(const FileSystemURL& url,
StatusCallback callback) override;
void FileExists(const FileSystemURL& url, StatusCallback callback) override;
void GetMetadata(const FileSystemURL& url,
GetMetadataFieldSet fields,
GetMetadataCallback callback) override;
void ReadDirectory(const FileSystemURL& url,
const ReadDirectoryCallback& callback) override;
void Remove(const FileSystemURL& url,
bool recursive,
StatusCallback callback) override;
void WriteBlob(const FileSystemURL& url,
std::unique_ptr<FileWriterDelegate> writer_delegate,
std::unique_ptr<BlobReader> blob_reader,
const WriteCallback& callback) override;
void Write(const FileSystemURL& url,
std::unique_ptr<FileWriterDelegate> writer_delegate,
mojo::ScopedDataPipeConsumerHandle data_pipe,
const WriteCallback& callback) override;
void Truncate(const FileSystemURL& url,
int64_t length,
StatusCallback callback) override;
void TouchFile(const FileSystemURL& url,
const base::Time& last_access_time,
const base::Time& last_modified_time,
StatusCallback callback) override;
void OpenFile(const FileSystemURL& url,
uint32_t file_flags,
OpenFileCallback callback) override;
void Cancel(StatusCallback cancel_callback) override;
void CreateSnapshotFile(const FileSystemURL& path,
SnapshotFileCallback callback) override;
void CopyInForeignFile(const base::FilePath& src_local_disk_path,
const FileSystemURL& dest_url,
StatusCallback callback) override;
void RemoveFile(const FileSystemURL& url, StatusCallback callback) override;
void RemoveDirectory(const FileSystemURL& url,
StatusCallback callback) override;
void CopyFileLocal(const FileSystemURL& src_url,
const FileSystemURL& dest_url,
CopyOrMoveOptionSet options,
const CopyFileProgressCallback& progress_callback,
StatusCallback callback) override;
void MoveFileLocal(const FileSystemURL& src_url,
const FileSystemURL& dest_url,
CopyOrMoveOptionSet options,
StatusCallback callback) override;
base::File::Error SyncGetPlatformPath(const FileSystemURL& url,
base::FilePath* platform_path) override;
FileSystemContext* file_system_context() const {
return file_system_context_.get();
}
private:
friend class FileSystemOperation;
// Queries the quota and usage and then runs the given |task|.
// If an error occurs during the quota query it runs |error_callback| instead.
void GetBucketSpaceRemainingAndRunTask(const FileSystemURL& url,
base::OnceClosure task,
base::OnceClosure error_callback);
// Called after the quota info is obtained from the quota manager
// (which is triggered by GetBucketSpaceRemainingAndRunTask).
// Sets the quota info in the operation_context_ and then runs the given
// |task| if the returned quota status is successful, otherwise runs
// |error_callback|.
void DidGetBucketSpaceRemaining(base::OnceClosure task,
base::OnceClosure error_callback,
QuotaErrorOr<int64_t> space_left);
// The 'body' methods that perform the actual work (i.e. posting the
// file task on proxy_) after the quota check.
void DoCreateFile(const FileSystemURL& url,
StatusCallback callback,
bool exclusive);
void DoCreateDirectory(const FileSystemURL& url,
StatusCallback callback,
bool exclusive,
bool recursive);
void DoCopyFileLocal(const FileSystemURL& src,
const FileSystemURL& dest,
CopyOrMoveOptionSet options,
const CopyFileProgressCallback& progress_callback,
StatusCallback callback);
void DoMoveFileLocal(const FileSystemURL& src,
const FileSystemURL& dest,
CopyOrMoveOptionSet options,
StatusCallback callback);
void DoCopyInForeignFile(const base::FilePath& src_local_disk_file_path,
const FileSystemURL& dest,
StatusCallback callback);
void DoTruncate(const FileSystemURL& url,
StatusCallback callback,
int64_t length);
void DoOpenFile(const FileSystemURL& url,
OpenFileCallback callback,
uint32_t file_flags);
// Callback for CreateFile for |exclusive|=true cases.
void DidEnsureFileExistsExclusive(StatusCallback callback,
base::File::Error rv,
bool created);
// Callback for CreateFile for |exclusive|=false cases.
void DidEnsureFileExistsNonExclusive(StatusCallback callback,
base::File::Error rv,
bool created);
void DidFinishOperation(StatusCallback callback, base::File::Error rv);
void DidDirectoryExists(StatusCallback callback,
base::File::Error rv,
const base::File::Info& file_info);
void DidFileExists(StatusCallback callback,
base::File::Error rv,
const base::File::Info& file_info);
void DidDeleteRecursively(const FileSystemURL& url,
StatusCallback callback,
base::File::Error rv);
void DidWrite(const FileSystemURL& url,
const WriteCallback& callback,
base::File::Error rv,
int64_t bytes,
FileWriterDelegate::WriteProgressStatus write_status);
// Used only for internal assertions.
void CheckOperationType(OperationType type);
const OperationType type_;
scoped_refptr<FileSystemContext> file_system_context_;
std::unique_ptr<FileSystemOperationContext> operation_context_;
raw_ptr<AsyncFileUtil> async_file_util_; // Not owned.
std::unique_ptr<FileWriterDelegate> file_writer_delegate_;
std::unique_ptr<RecursiveOperationDelegate> recursive_operation_delegate_;
StatusCallback cancel_callback_;
// A flag to make sure we call operation only once per instance.
bool operation_called_ = false;
base::WeakPtr<FileSystemOperationImpl> weak_ptr_;
base::WeakPtrFactory<FileSystemOperationImpl> weak_factory_{this};
};
} // namespace storage
#endif // STORAGE_BROWSER_FILE_SYSTEM_FILE_SYSTEM_OPERATION_IMPL_H_
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