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// Copyright (c) 2012 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.
#include "webkit/fileapi/syncable/syncable_file_system_util.h"
#include "base/command_line.h"
#include "webkit/fileapi/external_mount_points.h"
#include "webkit/fileapi/file_observers.h"
#include "webkit/fileapi/file_system_context.h"
#include "webkit/fileapi/file_system_util.h"
#include "webkit/fileapi/sandbox_mount_point_provider.h"
using fileapi::ExternalMountPoints;
using fileapi::FileSystemContext;
using fileapi::FileSystemURL;
using fileapi::LocalFileSystemOperation;
namespace sync_file_system {
namespace {
// A command switch to enable syncing directory operations in Sync FileSystem
// API. (http://crbug.com/161442)
// TODO(kinuko): this command-line switch should be temporary.
const char kEnableSyncDirectoryOperation[] = "enable-sync-directory-operation";
bool is_directory_operation_enabled = false;
}
const char* GetFlagForSyncFileSystemDirectoryOperation() {
return kEnableSyncDirectoryOperation;
}
bool RegisterSyncableFileSystem(const std::string& service_name) {
return ExternalMountPoints::GetSystemInstance()->RegisterFileSystem(
service_name, fileapi::kFileSystemTypeSyncable, base::FilePath());
}
bool RevokeSyncableFileSystem(const std::string& service_name) {
return ExternalMountPoints::GetSystemInstance()->RevokeFileSystem(
service_name);
}
GURL GetSyncableFileSystemRootURI(const GURL& origin,
const std::string& service_name) {
const GURL url = GetFileSystemRootURI(origin,
fileapi::kFileSystemTypeExternal);
const std::string path = service_name + "/";
url_canon::Replacements<char> replacements;
replacements.SetPath(path.c_str(), url_parse::Component(0, path.length()));
return url.ReplaceComponents(replacements);
}
FileSystemURL CreateSyncableFileSystemURL(const GURL& origin,
const std::string& service_name,
const base::FilePath& path) {
// Avoid using FilePath::Append as path may be an absolute path.
base::FilePath::StringType virtual_path =
base::FilePath::FromUTF8Unsafe(service_name + "/").value() +
path.value();
return ExternalMountPoints::GetSystemInstance()->CreateCrackedFileSystemURL(
origin,
fileapi::kFileSystemTypeExternal,
base::FilePath(virtual_path));
}
bool SerializeSyncableFileSystemURL(const FileSystemURL& url,
std::string* serialized_url) {
if (!url.is_valid() || url.type() != fileapi::kFileSystemTypeSyncable)
return false;
*serialized_url =
GetSyncableFileSystemRootURI(url.origin(), url.filesystem_id()).spec() +
url.path().AsUTF8Unsafe();
return true;
}
bool DeserializeSyncableFileSystemURL(
const std::string& serialized_url, FileSystemURL* url) {
#if !defined(FILE_PATH_USES_WIN_SEPARATORS)
DCHECK(serialized_url.find('\\') == std::string::npos);
#endif // FILE_PATH_USES_WIN_SEPARATORS
FileSystemURL deserialized =
ExternalMountPoints::GetSystemInstance()->CrackURL(GURL(serialized_url));
if (!deserialized.is_valid() ||
deserialized.type() != fileapi::kFileSystemTypeSyncable) {
return false;
}
*url = deserialized;
return true;
}
LocalFileSystemOperation* CreateFileSystemOperationForSync(
FileSystemContext* file_system_context) {
DCHECK(file_system_context);
return file_system_context->sandbox_provider()->
CreateFileSystemOperationForSync(file_system_context);
}
void SetEnableSyncDirectoryOperation(bool flag) {
is_directory_operation_enabled = flag;
}
bool IsSyncDirectoryOperationEnabled() {
return is_directory_operation_enabled ||
CommandLine::ForCurrentProcess()->HasSwitch(
kEnableSyncDirectoryOperation);
}
} // namespace sync_file_system
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