chrome/browser/sync_file_system/local/syncable_file_system_operation.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/sync_file_system/local/syncable_file_system_operation.h"
   6
   7 #include "base/logging.h"
   8 #include "chrome/browser/sync_file_system/local/local_file_sync_context.h"
   9 #include "chrome/browser/sync_file_system/local/sync_file_system_backend.h"
  10 #include "chrome/browser/sync_file_system/local/syncable_file_operation_runner.h"
  11 #include "chrome/browser/sync_file_system/syncable_file_system_util.h"
  12 #include "net/url_request/url_request.h"
  13 #include "storage/browser/blob/shareable_file_reference.h"
  14 #include "storage/browser/fileapi/file_system_context.h"
  15 #include "storage/browser/fileapi/file_system_operation.h"
  16 #include "storage/browser/fileapi/file_system_operation_context.h"
  17 #include "storage/browser/fileapi/file_system_url.h"
  18 #include "storage/browser/fileapi/file_writer_delegate.h"
  19
  20 using storage::FileSystemURL;
  21
  22 namespace sync_file_system {
  23
  24 namespace {
  25
  26 void WriteCallbackAdapter(
  27     const SyncableFileSystemOperation::WriteCallback& callback,
  28     base::File::Error status) {
  29   callback.Run(status, 0, true);
  30 }
  31
  32 }  // namespace
  33
  34 class SyncableFileSystemOperation::QueueableTask
  35     : public SyncableFileOperationRunner::Task {
  36  public:
  37   QueueableTask(base::WeakPtr<SyncableFileSystemOperation> operation,
  38                 const base::Closure& task)
  39       : operation_(operation),
  40         task_(task),
  41         target_paths_(operation->target_paths_) {}
  42
  43   ~QueueableTask() override { DCHECK(!operation_); }
  44
  45   void Run() override {
  46     if (!operation_)
  47       return;
  48     DCHECK(!task_.is_null());
  49     task_.Run();
  50     operation_.reset();
  51   }
  52
  53   void Cancel() override {
  54     DCHECK(!task_.is_null());
  55     if (operation_)
  56       operation_->OnCancelled();
  57     task_.Reset();
  58     operation_.reset();
  59   }
  60
  61   const std::vector<FileSystemURL>& target_paths() const override {
  62     return target_paths_;
  63   }
  64
  65  private:
  66   base::WeakPtr<SyncableFileSystemOperation> operation_;
  67   base::Closure task_;
  68   std::vector<FileSystemURL> target_paths_;
  69   DISALLOW_COPY_AND_ASSIGN(QueueableTask);
  70 };
  71
  72 SyncableFileSystemOperation::~SyncableFileSystemOperation() {}
  73
  74 void SyncableFileSystemOperation::CreateFile(
  75     const FileSystemURL& url,
  76     bool exclusive,
  77     const StatusCallback& callback) {
  78   DCHECK(CalledOnValidThread());
  79   if (!operation_runner_.get()) {
  80     callback.Run(base::File::FILE_ERROR_NOT_FOUND);
  81     return;
  82   }
  83   DCHECK(operation_runner_.get());
  84   target_paths_.push_back(url);
  85   completion_callback_ = callback;
  86   scoped_ptr<SyncableFileOperationRunner::Task> task(new QueueableTask(
  87       weak_factory_.GetWeakPtr(),
  88       base::Bind(&FileSystemOperation::CreateFile,
  89                  base::Unretained(impl_.get()),
  90                  url, exclusive,
  91                  base::Bind(&self::DidFinish, weak_factory_.GetWeakPtr()))));
  92   operation_runner_->PostOperationTask(task.Pass());
  93 }
  94
  95 void SyncableFileSystemOperation::CreateDirectory(
  96     const FileSystemURL& url,
  97     bool exclusive,
  98     bool recursive,
  99     const StatusCallback& callback) {
 100   DCHECK(CalledOnValidThread());
 101   if (!operation_runner_.get()) {
 102     callback.Run(base::File::FILE_ERROR_NOT_FOUND);
 103     return;
 104   }
 105   DCHECK(operation_runner_.get());
 106   target_paths_.push_back(url);
 107   completion_callback_ = callback;
 108   scoped_ptr<SyncableFileOperationRunner::Task> task(new QueueableTask(
 109       weak_factory_.GetWeakPtr(),
 110       base::Bind(&FileSystemOperation::CreateDirectory,
 111                  base::Unretained(impl_.get()),
 112                  url, exclusive, recursive,
 113                  base::Bind(&self::DidFinish, weak_factory_.GetWeakPtr()))));
 114   operation_runner_->PostOperationTask(task.Pass());
 115 }
 116
 117 void SyncableFileSystemOperation::Copy(
 118     const FileSystemURL& src_url,
 119     const FileSystemURL& dest_url,
 120     CopyOrMoveOption option,
 121     const CopyProgressCallback& progress_callback,
 122     const StatusCallback& callback) {
 123   DCHECK(CalledOnValidThread());
 124   if (!operation_runner_.get()) {
 125     callback.Run(base::File::FILE_ERROR_NOT_FOUND);
 126     return;
 127   }
 128   DCHECK(operation_runner_.get());
 129   target_paths_.push_back(dest_url);
 130   completion_callback_ = callback;
 131   scoped_ptr<SyncableFileOperationRunner::Task> task(new QueueableTask(
 132       weak_factory_.GetWeakPtr(),
 133       base::Bind(&FileSystemOperation::Copy,
 134                  base::Unretained(impl_.get()),
 135                  src_url, dest_url, option, progress_callback,
 136                  base::Bind(&self::DidFinish, weak_factory_.GetWeakPtr()))));
 137   operation_runner_->PostOperationTask(task.Pass());
 138 }
 139
 140 void SyncableFileSystemOperation::Move(
 141     const FileSystemURL& src_url,
 142     const FileSystemURL& dest_url,
 143     CopyOrMoveOption option,
 144     const StatusCallback& callback) {
 145   DCHECK(CalledOnValidThread());
 146   if (!operation_runner_.get()) {
 147     callback.Run(base::File::FILE_ERROR_NOT_FOUND);
 148     return;
 149   }
 150   DCHECK(operation_runner_.get());
 151   target_paths_.push_back(src_url);
 152   target_paths_.push_back(dest_url);
 153   completion_callback_ = callback;
 154   scoped_ptr<SyncableFileOperationRunner::Task> task(new QueueableTask(
 155       weak_factory_.GetWeakPtr(),
 156       base::Bind(&FileSystemOperation::Move,
 157                  base::Unretained(impl_.get()),
 158                  src_url, dest_url, option,
 159                  base::Bind(&self::DidFinish, weak_factory_.GetWeakPtr()))));
 160   operation_runner_->PostOperationTask(task.Pass());
 161 }
 162
 163 void SyncableFileSystemOperation::DirectoryExists(
 164     const FileSystemURL& url,
 165     const StatusCallback& callback) {
 166   DCHECK(CalledOnValidThread());
 167   impl_->DirectoryExists(url, callback);
 168 }
 169
 170 void SyncableFileSystemOperation::FileExists(
 171     const FileSystemURL& url,
 172     const StatusCallback& callback) {
 173   DCHECK(CalledOnValidThread());
 174   impl_->FileExists(url, callback);
 175 }
 176
 177 void SyncableFileSystemOperation::GetMetadata(
 178     const FileSystemURL& url,
 179     const GetMetadataCallback& callback) {
 180   DCHECK(CalledOnValidThread());
 181   impl_->GetMetadata(url, callback);
 182 }
 183
 184 void SyncableFileSystemOperation::ReadDirectory(
 185     const FileSystemURL& url,
 186     const ReadDirectoryCallback& callback) {
 187   DCHECK(CalledOnValidThread());
 188   // This is a read operation and there'd be no hard to let it go even if
 189   // directory operation is disabled. (And we should allow this if it's made
 190   // on the root directory)
 191   impl_->ReadDirectory(url, callback);
 192 }
 193
 194 void SyncableFileSystemOperation::Remove(
 195     const FileSystemURL& url, bool recursive,
 196     const StatusCallback& callback) {
 197   DCHECK(CalledOnValidThread());
 198   if (!operation_runner_.get()) {
 199     callback.Run(base::File::FILE_ERROR_NOT_FOUND);
 200     return;
 201   }
 202   DCHECK(operation_runner_.get());
 203   target_paths_.push_back(url);
 204   completion_callback_ = callback;
 205   scoped_ptr<SyncableFileOperationRunner::Task> task(new QueueableTask(
 206       weak_factory_.GetWeakPtr(),
 207       base::Bind(&FileSystemOperation::Remove,
 208                  base::Unretained(impl_.get()),
 209                  url, recursive,
 210                  base::Bind(&self::DidFinish, weak_factory_.GetWeakPtr()))));
 211   operation_runner_->PostOperationTask(task.Pass());
 212 }
 213
 214 void SyncableFileSystemOperation::Write(
 215     const FileSystemURL& url,
 216     scoped_ptr<storage::FileWriterDelegate> writer_delegate,
 217     scoped_ptr<net::URLRequest> blob_request,
 218     const WriteCallback& callback) {
 219   DCHECK(CalledOnValidThread());
 220   if (!operation_runner_.get()) {
 221     callback.Run(base::File::FILE_ERROR_NOT_FOUND, 0, true);
 222     return;
 223   }
 224   DCHECK(operation_runner_.get());
 225   target_paths_.push_back(url);
 226   completion_callback_ = base::Bind(&WriteCallbackAdapter, callback);
 227   scoped_ptr<SyncableFileOperationRunner::Task> task(new QueueableTask(
 228       weak_factory_.GetWeakPtr(),
 229       base::Bind(&FileSystemOperation::Write,
 230                  base::Unretained(impl_.get()),
 231                  url,
 232                  base::Passed(&writer_delegate),
 233                  base::Passed(&blob_request),
 234                  base::Bind(&self::DidWrite, weak_factory_.GetWeakPtr(),
 235                             callback))));
 236   operation_runner_->PostOperationTask(task.Pass());
 237 }
 238
 239 void SyncableFileSystemOperation::Truncate(
 240     const FileSystemURL& url, int64 length,
 241     const StatusCallback& callback) {
 242   DCHECK(CalledOnValidThread());
 243   if (!operation_runner_.get()) {
 244     callback.Run(base::File::FILE_ERROR_NOT_FOUND);
 245     return;
 246   }
 247   DCHECK(operation_runner_.get());
 248   target_paths_.push_back(url);
 249   completion_callback_ = callback;
 250   scoped_ptr<SyncableFileOperationRunner::Task> task(new QueueableTask(
 251       weak_factory_.GetWeakPtr(),
 252       base::Bind(&FileSystemOperation::Truncate,
 253                  base::Unretained(impl_.get()),
 254                  url, length,
 255                  base::Bind(&self::DidFinish, weak_factory_.GetWeakPtr()))));
 256   operation_runner_->PostOperationTask(task.Pass());
 257 }
 258
 259 void SyncableFileSystemOperation::TouchFile(
 260     const FileSystemURL& url,
 261     const base::Time& last_access_time,
 262     const base::Time& last_modified_time,
 263     const StatusCallback& callback) {
 264   DCHECK(CalledOnValidThread());
 265   impl_->TouchFile(url, last_access_time, last_modified_time, callback);
 266 }
 267
 268 void SyncableFileSystemOperation::OpenFile(
 269     const FileSystemURL& url,
 270     int file_flags,
 271     const OpenFileCallback& callback) {
 272   NOTREACHED();
 273 }
 274
 275 void SyncableFileSystemOperation::Cancel(
 276     const StatusCallback& cancel_callback) {
 277   DCHECK(CalledOnValidThread());
 278   impl_->Cancel(cancel_callback);
 279 }
 280
 281 void SyncableFileSystemOperation::CreateSnapshotFile(
 282     const FileSystemURL& path,
 283     const SnapshotFileCallback& callback) {
 284   DCHECK(CalledOnValidThread());
 285   impl_->CreateSnapshotFile(path, callback);
 286 }
 287
 288 void SyncableFileSystemOperation::CopyInForeignFile(
 289     const base::FilePath& src_local_disk_path,
 290     const FileSystemURL& dest_url,
 291     const StatusCallback& callback) {
 292   DCHECK(CalledOnValidThread());
 293   if (!operation_runner_.get()) {
 294     callback.Run(base::File::FILE_ERROR_NOT_FOUND);
 295     return;
 296   }
 297   DCHECK(operation_runner_.get());
 298   target_paths_.push_back(dest_url);
 299   completion_callback_ = callback;
 300   scoped_ptr<SyncableFileOperationRunner::Task> task(new QueueableTask(
 301       weak_factory_.GetWeakPtr(),
 302       base::Bind(&FileSystemOperation::CopyInForeignFile,
 303                  base::Unretained(impl_.get()),
 304                  src_local_disk_path, dest_url,
 305                  base::Bind(&self::DidFinish, weak_factory_.GetWeakPtr()))));
 306   operation_runner_->PostOperationTask(task.Pass());
 307 }
 308
 309 void SyncableFileSystemOperation::RemoveFile(
 310     const FileSystemURL& url,
 311     const StatusCallback& callback) {
 312   DCHECK(CalledOnValidThread());
 313   impl_->RemoveFile(url, callback);
 314 }
 315
 316 void SyncableFileSystemOperation::RemoveDirectory(
 317     const FileSystemURL& url,
 318     const StatusCallback& callback) {
 319   DCHECK(CalledOnValidThread());
 320   impl_->RemoveDirectory(url, callback);
 321 }
 322
 323 void SyncableFileSystemOperation::CopyFileLocal(
 324     const FileSystemURL& src_url,
 325     const FileSystemURL& dest_url,
 326     CopyOrMoveOption option,
 327     const CopyFileProgressCallback& progress_callback,
 328     const StatusCallback& callback) {
 329   DCHECK(CalledOnValidThread());
 330   impl_->CopyFileLocal(src_url, dest_url, option, progress_callback, callback);
 331 }
 332
 333 void SyncableFileSystemOperation::MoveFileLocal(
 334     const FileSystemURL& src_url,
 335     const FileSystemURL& dest_url,
 336     CopyOrMoveOption option,
 337     const StatusCallback& callback) {
 338   DCHECK(CalledOnValidThread());
 339   impl_->MoveFileLocal(src_url, dest_url, option, callback);
 340 }
 341
 342 base::File::Error SyncableFileSystemOperation::SyncGetPlatformPath(
 343     const FileSystemURL& url,
 344     base::FilePath* platform_path) {
 345   return impl_->SyncGetPlatformPath(url, platform_path);
 346 }
 347
 348 SyncableFileSystemOperation::SyncableFileSystemOperation(
 349     const FileSystemURL& url,
 350     storage::FileSystemContext* file_system_context,
 351     scoped_ptr<storage::FileSystemOperationContext> operation_context)
 352     : url_(url), weak_factory_(this) {
 353   DCHECK(file_system_context);
 354   SyncFileSystemBackend* backend =
 355       SyncFileSystemBackend::GetBackend(file_system_context);
 356   DCHECK(backend);
 357   if (!backend->sync_context()) {
 358     // Syncable FileSystem is opened in a file system context which doesn't
 359     // support (or is not initialized for) the API.
 360     // Returning here to leave operation_runner_ as NULL.
 361     return;
 362   }
 363   impl_.reset(storage::FileSystemOperation::Create(
 364       url_, file_system_context, operation_context.Pass()));
 365   operation_runner_ = backend->sync_context()->operation_runner();
 366 }
 367
 368 void SyncableFileSystemOperation::DidFinish(base::File::Error status) {
 369   DCHECK(CalledOnValidThread());
 370   DCHECK(!completion_callback_.is_null());
 371   if (operation_runner_.get())
 372     operation_runner_->OnOperationCompleted(target_paths_);
 373   completion_callback_.Run(status);
 374 }
 375
 376 void SyncableFileSystemOperation::DidWrite(
 377     const WriteCallback& callback,
 378     base::File::Error result,
 379     int64 bytes,
 380     bool complete) {
 381   DCHECK(CalledOnValidThread());
 382   if (!complete) {
 383     callback.Run(result, bytes, complete);
 384     return;
 385   }
 386   if (operation_runner_.get())
 387     operation_runner_->OnOperationCompleted(target_paths_);
 388   callback.Run(result, bytes, complete);
 389 }
 390
 391 void SyncableFileSystemOperation::OnCancelled() {
 392   DCHECK(!completion_callback_.is_null());
 393   completion_callback_.Run(base::File::FILE_ERROR_ABORT);
 394 }
 395
 396 }  // namespace sync_file_system