| // Copyright 2013 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 "chrome/browser/chromeos/drive/async_file_util.h" |
| |
| #include "base/callback.h" |
| #include "base/files/file_path.h" |
| #include "base/logging.h" |
| #include "base/platform_file.h" |
| #include "base/threading/sequenced_worker_pool.h" |
| #include "chrome/browser/chromeos/drive/file_system_util.h" |
| #include "chrome/browser/chromeos/drive/fileapi_worker.h" |
| #include "chrome/browser/google_apis/task_util.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "webkit/browser/fileapi/file_system_operation_context.h" |
| #include "webkit/browser/fileapi/file_system_url.h" |
| #include "webkit/common/blob/shareable_file_reference.h" |
| |
| using content::BrowserThread; |
| |
| namespace drive { |
| namespace internal { |
| namespace { |
| |
| // Posts fileapi_internal::RunFileSystemCallback to UI thread. |
| // This function must be called on IO thread. |
| // The |on_error_callback| will be called (on error case) on IO thread. |
| void PostFileSystemCallback( |
| const fileapi_internal::FileSystemGetter& file_system_getter, |
| const base::Callback<void(FileSystemInterface*)>& function, |
| const base::Closure& on_error_callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| BrowserThread::PostTask( |
| BrowserThread::UI, |
| FROM_HERE, |
| base::Bind(&fileapi_internal::RunFileSystemCallback, |
| file_system_getter, function, |
| on_error_callback.is_null() ? |
| base::Closure() : |
| base::Bind(&google_apis::RunTaskOnThread, |
| base::MessageLoopProxy::current(), |
| on_error_callback))); |
| } |
| |
| // Runs CreateOrOpenFile callback based on the given |error| and |file|. |
| void RunCreateOrOpenFileCallback( |
| const AsyncFileUtil::FileSystemGetter& file_system_getter, |
| const base::FilePath& file_path, |
| const AsyncFileUtil::CreateOrOpenCallback& callback, |
| base::PlatformFileError error, |
| base::PlatformFile file, |
| const base::Closure& close_callback_on_ui_thread) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| // It is necessary to make a closure, which runs on file closing here. |
| // It will be provided as a FileSystem::OpenFileCallback's argument later. |
| // (crbug.com/259184). |
| callback.Run( |
| error, base::PassPlatformFile(&file), |
| base::Bind(&google_apis::RunTaskOnThread, |
| BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI), |
| close_callback_on_ui_thread)); |
| } |
| |
| // Runs CreateOrOpenFile when the error happens. |
| void RunCreateOrOpenFileCallbackOnError( |
| const AsyncFileUtil::CreateOrOpenCallback& callback, |
| base::PlatformFileError error) { |
| // Because the |callback| takes PassPlatformFile as its argument, and |
| // it is necessary to guarantee the pointer passed to PassPlatformFile is |
| // alive during the |callback| invocation, here we prepare a thin adapter |
| // to have PlatformFile on stack frame. |
| base::PlatformFile file = base::kInvalidPlatformFileValue; |
| callback.Run(error, base::PassPlatformFile(&file), base::Closure()); |
| } |
| |
| // Runs EnsureFileExistsCallback based on the given |error|. |
| void RunEnsureFileExistsCallback( |
| const AsyncFileUtil::EnsureFileExistsCallback& callback, |
| base::PlatformFileError error) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| // Remember if the file is actually created or not. |
| bool created = (error == base::PLATFORM_FILE_OK); |
| |
| // PLATFORM_FILE_ERROR_EXISTS is not an actual error here. |
| if (error == base::PLATFORM_FILE_ERROR_EXISTS) |
| error = base::PLATFORM_FILE_OK; |
| |
| callback.Run(error, created); |
| } |
| |
| |
| // Runs |callback| with the arguments based on the given arguments. |
| void RunCreateSnapshotFileCallback( |
| const AsyncFileUtil::CreateSnapshotFileCallback& callback, |
| base::PlatformFileError error, |
| const base::PlatformFileInfo& file_info, |
| const base::FilePath& local_path, |
| webkit_blob::ScopedFile::ScopeOutPolicy scope_out_policy) { |
| // ShareableFileReference is thread *unsafe* class. So it is necessary to |
| // create the instance (by invoking GetOrCreate) on IO thread, though |
| // most drive file system related operations run on UI thread. |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| scoped_refptr<webkit_blob::ShareableFileReference> file_reference = |
| webkit_blob::ShareableFileReference::GetOrCreate(webkit_blob::ScopedFile( |
| local_path, |
| scope_out_policy, |
| BrowserThread::GetBlockingPool())); |
| callback.Run(error, file_info, local_path, file_reference); |
| } |
| |
| } // namespace |
| |
| AsyncFileUtil::AsyncFileUtil(const FileSystemGetter& file_system_getter) |
| : file_system_getter_(file_system_getter) { |
| } |
| |
| AsyncFileUtil::~AsyncFileUtil() { |
| } |
| |
| void AsyncFileUtil::CreateOrOpen( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| int file_flags, |
| const CreateOrOpenCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| base::PlatformFile platform_file = base::kInvalidPlatformFileValue; |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND, |
| base::PassPlatformFile(&platform_file), |
| base::Closure()); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::OpenFile, |
| file_path, file_flags, |
| google_apis::CreateRelayCallback( |
| base::Bind(&RunCreateOrOpenFileCallback, |
| file_system_getter_, file_path, callback))), |
| base::Bind(&RunCreateOrOpenFileCallbackOnError, |
| callback, base::PLATFORM_FILE_ERROR_FAILED)); |
| } |
| |
| void AsyncFileUtil::EnsureFileExists( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| const EnsureFileExistsCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND, false); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::CreateFile, |
| file_path, true /* is_exlusive */, |
| google_apis::CreateRelayCallback( |
| base::Bind(&RunEnsureFileExistsCallback, callback))), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED, false)); |
| } |
| |
| void AsyncFileUtil::CreateDirectory( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| bool exclusive, |
| bool recursive, |
| const StatusCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::CreateDirectory, |
| file_path, exclusive, recursive, |
| google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED)); |
| } |
| |
| void AsyncFileUtil::GetFileInfo( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| const GetFileInfoCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND, base::PlatformFileInfo()); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::GetFileInfo, |
| file_path, google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED, |
| base::PlatformFileInfo())); |
| } |
| |
| void AsyncFileUtil::ReadDirectory( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| const ReadDirectoryCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND, EntryList(), false); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::ReadDirectory, |
| file_path, google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED, |
| EntryList(), false)); |
| } |
| |
| void AsyncFileUtil::Touch( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| const base::Time& last_access_time, |
| const base::Time& last_modified_time, |
| const StatusCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::TouchFile, |
| file_path, last_access_time, last_modified_time, |
| google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED)); |
| } |
| |
| void AsyncFileUtil::Truncate( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| int64 length, |
| const StatusCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::Truncate, |
| file_path, length, google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED)); |
| } |
| |
| void AsyncFileUtil::CopyFileLocal( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& src_url, |
| const fileapi::FileSystemURL& dest_url, |
| const CopyFileProgressCallback& progress_callback, |
| const StatusCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath src_path = util::ExtractDrivePathFromFileSystemUrl(src_url); |
| base::FilePath dest_path = util::ExtractDrivePathFromFileSystemUrl(dest_url); |
| if (src_path.empty() || dest_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::Copy, |
| src_path, dest_path, |
| google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED)); |
| } |
| |
| void AsyncFileUtil::MoveFileLocal( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& src_url, |
| const fileapi::FileSystemURL& dest_url, |
| const StatusCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath src_path = util::ExtractDrivePathFromFileSystemUrl(src_url); |
| base::FilePath dest_path = util::ExtractDrivePathFromFileSystemUrl(dest_url); |
| if (src_path.empty() || dest_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::Move, |
| src_path, dest_path, |
| google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED)); |
| } |
| |
| void AsyncFileUtil::CopyInForeignFile( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const base::FilePath& src_file_path, |
| const fileapi::FileSystemURL& dest_url, |
| const StatusCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath dest_path = util::ExtractDrivePathFromFileSystemUrl(dest_url); |
| if (dest_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::CopyInForeignFile, |
| src_file_path, dest_path, |
| google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED)); |
| } |
| |
| void AsyncFileUtil::DeleteFile( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| const StatusCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::Remove, |
| file_path, false /* not recursive */, |
| google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED)); |
| } |
| |
| void AsyncFileUtil::DeleteDirectory( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| const StatusCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::Remove, |
| file_path, false /* not recursive */, |
| google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED)); |
| } |
| |
| void AsyncFileUtil::DeleteRecursively( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| const StatusCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::Remove, |
| file_path, true /* recursive */, |
| google_apis::CreateRelayCallback(callback)), |
| base::Bind(callback, base::PLATFORM_FILE_ERROR_FAILED)); |
| } |
| |
| void AsyncFileUtil::CreateSnapshotFile( |
| scoped_ptr<fileapi::FileSystemOperationContext> context, |
| const fileapi::FileSystemURL& url, |
| const CreateSnapshotFileCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| |
| base::FilePath file_path = util::ExtractDrivePathFromFileSystemUrl(url); |
| if (file_path.empty()) { |
| callback.Run(base::PLATFORM_FILE_ERROR_NOT_FOUND, |
| base::PlatformFileInfo(), |
| base::FilePath(), |
| scoped_refptr<webkit_blob::ShareableFileReference>()); |
| return; |
| } |
| |
| PostFileSystemCallback( |
| file_system_getter_, |
| base::Bind(&fileapi_internal::CreateSnapshotFile, |
| file_path, |
| google_apis::CreateRelayCallback( |
| base::Bind(&RunCreateSnapshotFileCallback, callback))), |
| base::Bind(callback, |
| base::PLATFORM_FILE_ERROR_FAILED, |
| base::PlatformFileInfo(), |
| base::FilePath(), |
| scoped_refptr<webkit_blob::ShareableFileReference>())); |
| } |
| |
| } // namespace internal |
| } // namespace drive |