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// Copyright 2012 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_SANDBOX_FILE_SYSTEM_BACKEND_H_
#define STORAGE_BROWSER_FILE_SYSTEM_SANDBOX_FILE_SYSTEM_BACKEND_H_
#include <stdint.h>
#include <memory>
#include <set>
#include <string>
#include "base/compiler_specific.h"
#include "base/component_export.h"
#include "base/memory/raw_ptr.h"
#include "components/file_access/scoped_file_access_delegate.h"
#include "storage/browser/file_system/file_system_backend.h"
#include "storage/browser/file_system/file_system_quota_util.h"
#include "storage/browser/file_system/sandbox_file_system_backend_delegate.h"
#include "storage/browser/file_system/task_runner_bound_observer_list.h"
#include "storage/browser/quota/special_storage_policy.h"
namespace storage {
// TEMPORARY or PERSISTENT filesystems, which are placed under the user's
// profile directory in a sandboxed way.
// This interface also lets one enumerate and remove storage for the origins
// that use the filesystem.
class COMPONENT_EXPORT(STORAGE_BROWSER) SandboxFileSystemBackend
: public FileSystemBackend {
public:
explicit SandboxFileSystemBackend(SandboxFileSystemBackendDelegate* delegate);
SandboxFileSystemBackend(const SandboxFileSystemBackend&) = delete;
SandboxFileSystemBackend& operator=(const SandboxFileSystemBackend&) = delete;
~SandboxFileSystemBackend() override;
// FileSystemBackend overrides.
bool CanHandleType(FileSystemType type) const override;
void Initialize(FileSystemContext* context) override;
void ResolveURL(const FileSystemURL& url,
OpenFileSystemMode mode,
ResolveURLCallback callback) override;
AsyncFileUtil* GetAsyncFileUtil(FileSystemType type) override;
WatcherManager* GetWatcherManager(FileSystemType type) override;
CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory(
FileSystemType type,
base::File::Error* error_code) override;
std::unique_ptr<FileSystemOperation> CreateFileSystemOperation(
OperationType type,
const FileSystemURL& url,
FileSystemContext* context,
base::File::Error* error_code) const override;
bool SupportsStreaming(const FileSystemURL& url) const override;
bool HasInplaceCopyImplementation(FileSystemType type) const override;
std::unique_ptr<FileStreamReader> CreateFileStreamReader(
const FileSystemURL& url,
int64_t offset,
int64_t max_bytes_to_read,
const base::Time& expected_modification_time,
FileSystemContext* context,
file_access::ScopedFileAccessDelegate::RequestFilesAccessIOCallback
file_access) const override;
std::unique_ptr<FileStreamWriter> CreateFileStreamWriter(
const FileSystemURL& url,
int64_t offset,
FileSystemContext* context) const override;
FileSystemQuotaUtil* GetQuotaUtil() override;
const UpdateObserverList* GetUpdateObservers(
FileSystemType type) const override;
const ChangeObserverList* GetChangeObservers(
FileSystemType type) const override;
const AccessObserverList* GetAccessObservers(
FileSystemType type) const override;
// Returns a StorageKey enumerator of this backend.
// This method can only be called on the file thread.
SandboxFileSystemBackendDelegate::StorageKeyEnumerator*
CreateStorageKeyEnumerator();
private:
raw_ptr<SandboxFileSystemBackendDelegate, DanglingUntriaged>
delegate_; // Not owned.
};
} // namespace storage
#endif // STORAGE_BROWSER_FILE_SYSTEM_SANDBOX_FILE_SYSTEM_BACKEND_H_
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