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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_FILE_SYSTEM_FILE_SYSTEM_DISPATCHER_HOST_H_
#define CHROME_BROWSER_FILE_SYSTEM_FILE_SYSTEM_DISPATCHER_HOST_H_
#include "base/basictypes.h"
#include "base/file_util.h"
#include "base/id_map.h"
#include "base/nullable_string16.h"
#include "base/process.h"
#include "base/platform_file.h"
#include "base/scoped_callback_factory.h"
#include "base/ref_counted.h"
#include "chrome/browser/file_system/file_system_operation.h"
#include "chrome/browser/file_system/file_system_operation_client.h"
#include "chrome/common/render_messages.h"
class FileSystemHostContext;
class HostContentSettingsMap;
class Receiver;
class ResourceMessageFilter;
class FileSystemDispatcherHost
: public base::RefCountedThreadSafe<FileSystemDispatcherHost>,
public FileSystemOperationClient {
public:
FileSystemDispatcherHost(IPC::Message::Sender* sender,
FileSystemHostContext* file_system_host_context,
HostContentSettingsMap* host_content_settings_map);
void Init(base::ProcessHandle process_handle);
void Shutdown();
bool OnMessageReceived(const IPC::Message& message, bool* message_was_ok);
void OnOpenFileSystem(const ViewHostMsg_OpenFileSystemRequest_Params&);
void OnMove(
int request_id,
const string16& src_path,
const string16& dest_path);
void OnCopy(
int request_id,
const string16& src_path,
const string16& dest_path);
void OnRemove(
int request_id,
const string16& path);
void OnReadMetadata(
int request_id,
const string16& path);
void OnCreate(
int request_id,
const string16& path,
bool exclusive,
bool is_directory);
void OnExists(
int request_id,
const string16& path,
bool is_directory);
void OnReadDirectory(
int request_id,
const string16& path);
void Send(IPC::Message* message);
// FileSystemOperationClient methods.
virtual void DidFail(WebKit::WebFileError status, int request_id);
virtual void DidSucceed(int request_id);
virtual void DidReadMetadata(
const base::PlatformFileInfo& info,
int request_id);
virtual void DidReadDirectory(
const std::vector<base::file_util_proxy::Entry>& entries,
bool has_more,
int request_id);
private:
// Creates a new FileSystemOperation.
FileSystemOperation* GetNewOperation(int request_id);
// Checks the validity of a given |path|. Returns true if the given |path|
// is valid as a path for FileSystem API. Otherwise it sends back a
// security error code to the dispatcher and returns false.
bool CheckValidFileSystemPath(const FilePath& path, int request_id);
// The sender to be used for sending out IPC messages.
IPC::Message::Sender* message_sender_;
// The handle of this process.
base::ProcessHandle process_handle_;
bool shutdown_;
scoped_refptr<FileSystemHostContext> context_;
// Used to look up permissions.
scoped_refptr<HostContentSettingsMap> host_content_settings_map_;
// Keeps ongoing file system operations.
typedef IDMap<FileSystemOperation, IDMapOwnPointer> OperationsMap;
OperationsMap operations_;
DISALLOW_COPY_AND_ASSIGN(FileSystemDispatcherHost);
};
#endif // CHROME_BROWSER_FILE_SYSTEM_FILE_SYSTEM_DISPATCHER_HOST_H_
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