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| 1 // Copyright (c) 2012 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 "content/renderer/pepper/ppb_file_ref_impl.h" | |
| 6 | |
| 7 #include "base/files/file_util_proxy.h" | |
| 8 #include "base/platform_file.h" | |
| 9 #include "base/strings/string_util.h" | |
| 10 #include "base/strings/utf_string_conversions.h" | |
| 11 #include "content/child/fileapi/file_system_dispatcher.h" | |
| 12 #include "content/common/view_messages.h" | |
| 13 #include "content/renderer/pepper/common.h" | |
| 14 #include "content/renderer/pepper/pepper_file_system_host.h" | |
| 15 #include "content/renderer/pepper/pepper_helper_impl.h" | |
| 16 #include "content/renderer/pepper/plugin_module.h" | |
| 17 #include "content/renderer/pepper/renderer_ppapi_host_impl.h" | |
| 18 #include "content/renderer/render_thread_impl.h" | |
| 19 #include "net/base/escape.h" | |
| 20 #include "ppapi/c/pp_errors.h" | |
| 21 #include "ppapi/c/ppb_file_io.h" | |
| 22 #include "ppapi/host/ppapi_host.h" | |
| 23 #include "ppapi/shared_impl/file_type_conversion.h" | |
| 24 #include "ppapi/shared_impl/time_conversion.h" | |
| 25 #include "ppapi/shared_impl/var.h" | |
| 26 #include "ppapi/thunk/enter.h" | |
| 27 #include "ppapi/thunk/ppb_file_system_api.h" | |
| 28 #include "url/gurl.h" | |
| 29 #include "webkit/common/fileapi/directory_entry.h" | |
| 30 #include "webkit/common/fileapi/file_system_util.h" | |
| 31 | |
| 32 using ppapi::HostResource; | |
| 33 using ppapi::PPB_FileRef_CreateInfo; | |
| 34 using ppapi::PPTimeToTime; | |
| 35 using ppapi::StringVar; | |
| 36 using ppapi::TrackedCallback; | |
| 37 using ppapi::thunk::EnterResourceNoLock; | |
| 38 using ppapi::thunk::PPB_FileRef_API; | |
| 39 using ppapi::thunk::PPB_FileSystem_API; | |
| 40 | |
| 41 namespace content { | |
| 42 | |
| 43 namespace { | |
| 44 | |
| 45 bool IsValidLocalPath(const std::string& path) { | |
| 46 // The path must start with '/' | |
| 47 if (path.empty() || path[0] != '/') | |
| 48 return false; | |
| 49 | |
| 50 // The path must contain valid UTF-8 characters. | |
| 51 if (!IsStringUTF8(path)) | |
| 52 return false; | |
| 53 | |
| 54 #if defined(OS_WIN) | |
| 55 base::FilePath::StringType path_win(path.begin(), path.end()); | |
| 56 base::FilePath file_path(path_win); | |
| 57 #else | |
| 58 base::FilePath file_path(path); | |
| 59 #endif | |
| 60 if (file_path.ReferencesParent()) | |
| 61 return false; | |
| 62 | |
| 63 return true; | |
| 64 } | |
| 65 | |
| 66 void TrimTrailingSlash(std::string* path) { | |
| 67 // If this path ends with a slash, then normalize it away unless path is the | |
| 68 // root path. | |
| 69 if (path->size() > 1 && path->at(path->size() - 1) == '/') | |
| 70 path->erase(path->size() - 1, 1); | |
| 71 } | |
| 72 | |
| 73 std::string GetNameForExternalFilePath(const base::FilePath& in_path) { | |
| 74 const base::FilePath::StringType& path = in_path.value(); | |
| 75 size_t pos = path.rfind(base::FilePath::kSeparators[0]); | |
| 76 CHECK(pos != base::FilePath::StringType::npos); | |
| 77 #if defined(OS_WIN) | |
| 78 return WideToUTF8(path.substr(pos + 1)); | |
| 79 #elif defined(OS_POSIX) | |
| 80 return path.substr(pos + 1); | |
| 81 #else | |
| 82 #error "Unsupported platform." | |
| 83 #endif | |
| 84 } | |
| 85 | |
| 86 std::string GetNameForVirtualFilePath(const std::string& path) { | |
| 87 if (path.size() == 1 && path[0] == '/') | |
| 88 return path; | |
| 89 | |
| 90 // There should always be a leading slash at least! | |
| 91 size_t pos = path.rfind('/'); | |
| 92 CHECK(pos != std::string::npos); | |
| 93 return path.substr(pos + 1); | |
| 94 } | |
| 95 | |
| 96 void IgnoreCloseCallback(base::PlatformFileError error_code) { | |
| 97 } | |
| 98 | |
| 99 void PlatformFileInfoToPPFileInfo( | |
| 100 const base::PlatformFileInfo& file_info, | |
| 101 PP_FileSystemType file_system_type, | |
| 102 PP_FileInfo* info) { | |
| 103 DCHECK(info); | |
| 104 ::ppapi::PlatformFileInfoToPepperFileInfo(file_info, file_system_type, info); | |
| 105 } | |
| 106 | |
| 107 void GetFileInfoCallback( | |
| 108 scoped_refptr<base::TaskRunner> task_runner, | |
| 109 base::PlatformFile file, | |
| 110 linked_ptr<PP_FileInfo> info, | |
| 111 scoped_refptr<TrackedCallback> callback, | |
| 112 base::PlatformFileError error_code, | |
| 113 const base::PlatformFileInfo& file_info) { | |
| 114 base::FileUtilProxy::Close( | |
| 115 task_runner.get(), file, base::Bind(&IgnoreCloseCallback)); | |
| 116 | |
| 117 if (!TrackedCallback::IsPending(callback)) | |
| 118 return; | |
| 119 | |
| 120 int32_t pp_error = ::ppapi::PlatformFileErrorToPepperError(error_code); | |
| 121 if (pp_error != PP_OK) { | |
| 122 callback->Run(pp_error); | |
| 123 return; | |
| 124 } | |
| 125 | |
| 126 PlatformFileInfoToPPFileInfo( | |
| 127 file_info, PP_FILESYSTEMTYPE_EXTERNAL, info.get()); | |
| 128 | |
| 129 callback->Run(PP_OK); | |
| 130 } | |
| 131 | |
| 132 void QueryCallback(scoped_refptr<base::TaskRunner> task_runner, | |
| 133 linked_ptr<PP_FileInfo> info, | |
| 134 scoped_refptr<TrackedCallback> callback, | |
| 135 base::PlatformFileError error_code, | |
| 136 base::PassPlatformFile passed_file) { | |
| 137 if (!TrackedCallback::IsPending(callback)) | |
| 138 return; | |
| 139 | |
| 140 int32_t pp_error = ::ppapi::PlatformFileErrorToPepperError(error_code); | |
| 141 if (pp_error != PP_OK) { | |
| 142 callback->Run(pp_error); | |
| 143 return; | |
| 144 } | |
| 145 base::PlatformFile file = passed_file.ReleaseValue(); | |
| 146 | |
| 147 if (!base::FileUtilProxy::GetFileInfoFromPlatformFile( | |
| 148 task_runner.get(), | |
| 149 file, | |
| 150 base::Bind( | |
| 151 &GetFileInfoCallback, task_runner, file, info, callback))) { | |
| 152 base::FileUtilProxy::Close( | |
| 153 task_runner.get(), file, base::Bind(&IgnoreCloseCallback)); | |
| 154 callback->Run(PP_ERROR_FAILED); | |
| 155 } | |
| 156 } | |
| 157 | |
| 158 void DidReadMetadata( | |
| 159 scoped_refptr< ::ppapi::TrackedCallback> callback, | |
| 160 linked_ptr<PP_FileInfo> info, | |
| 161 PP_FileSystemType file_system_type, | |
| 162 const base::PlatformFileInfo& file_info) { | |
| 163 if (!TrackedCallback::IsPending(callback)) | |
| 164 return; | |
| 165 | |
| 166 PlatformFileInfoToPPFileInfo(file_info, file_system_type, info.get()); | |
| 167 callback->Run(PP_OK); | |
| 168 } | |
| 169 | |
| 170 void DidReadDirectory( | |
| 171 scoped_refptr< ::ppapi::TrackedCallback> callback, | |
| 172 PPB_FileRef_Impl* dir_ref, | |
| 173 linked_ptr<std::vector< ::ppapi::PPB_FileRef_CreateInfo> > dir_files, | |
| 174 linked_ptr<std::vector<PP_FileType> > dir_file_types, | |
| 175 const std::vector<fileapi::DirectoryEntry>& entries, | |
| 176 bool has_more) { | |
| 177 if (!TrackedCallback::IsPending(callback)) | |
| 178 return; | |
| 179 | |
| 180 // The current filesystem backend always returns false. | |
| 181 DCHECK(!has_more); | |
| 182 | |
| 183 DCHECK(dir_ref); | |
| 184 DCHECK(dir_files.get()); | |
| 185 DCHECK(dir_file_types.get()); | |
| 186 | |
| 187 std::string dir_path = dir_ref->GetCreateInfo().path; | |
| 188 if (dir_path.empty() || dir_path[dir_path.size() - 1] != '/') | |
| 189 dir_path += '/'; | |
| 190 | |
| 191 for (size_t i = 0; i < entries.size(); ++i) { | |
| 192 const fileapi::DirectoryEntry& entry = entries[i]; | |
| 193 scoped_refptr<PPB_FileRef_Impl> file_ref(PPB_FileRef_Impl::CreateInternal( | |
| 194 dir_ref->pp_instance(), | |
| 195 dir_ref->file_system_resource(), | |
| 196 dir_path + fileapi::FilePathToString(base::FilePath(entry.name)))); | |
| 197 dir_files->push_back(file_ref->GetCreateInfo()); | |
| 198 dir_file_types->push_back( | |
| 199 entry.is_directory ? PP_FILETYPE_DIRECTORY : PP_FILETYPE_REGULAR); | |
| 200 // Add a ref count on behalf of the plugin side. | |
| 201 file_ref->GetReference(); | |
| 202 } | |
| 203 CHECK_EQ(dir_files->size(), dir_file_types->size()); | |
| 204 | |
| 205 callback->Run(PP_OK); | |
| 206 } | |
| 207 | |
| 208 void DidFinishFileOperation( | |
| 209 scoped_refptr< ::ppapi::TrackedCallback> callback, | |
| 210 base::PlatformFileError error_code) { | |
| 211 if (callback->completed()) | |
| 212 return; | |
| 213 callback->Run(::ppapi::PlatformFileErrorToPepperError(error_code)); | |
| 214 } | |
| 215 | |
| 216 } // namespace | |
| 217 | |
| 218 PPB_FileRef_Impl::PPB_FileRef_Impl(const PPB_FileRef_CreateInfo& info, | |
| 219 PP_Resource file_system) | |
| 220 : PPB_FileRef_Shared(::ppapi::OBJECT_IS_IMPL, info), | |
| 221 file_system_(file_system), | |
| 222 external_file_system_path_(), | |
| 223 routing_id_(MSG_ROUTING_NONE) { | |
| 224 if (RenderThreadImpl::current()) { // NULL in tests. | |
| 225 routing_id_ = RenderThreadImpl::current()->GenerateRoutingID(); | |
| 226 ChildThread::current()->AddRoute(routing_id_, this); | |
| 227 } | |
| 228 } | |
| 229 | |
| 230 PPB_FileRef_Impl::PPB_FileRef_Impl(const PPB_FileRef_CreateInfo& info, | |
| 231 const base::FilePath& external_file_path) | |
| 232 : PPB_FileRef_Shared(::ppapi::OBJECT_IS_IMPL, info), | |
| 233 file_system_(), | |
| 234 external_file_system_path_(external_file_path), | |
| 235 routing_id_(MSG_ROUTING_NONE) { | |
| 236 if (RenderThreadImpl::current()) { // NULL in tests. | |
| 237 routing_id_ = RenderThreadImpl::current()->GenerateRoutingID(); | |
| 238 ChildThread::current()->AddRoute(routing_id_, this); | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 PPB_FileRef_Impl::~PPB_FileRef_Impl() { | |
| 243 if (RenderThreadImpl::current()) | |
| 244 ChildThread::current()->RemoveRoute(routing_id_); | |
| 245 } | |
| 246 | |
| 247 // static | |
| 248 PPB_FileRef_Impl* PPB_FileRef_Impl::CreateInternal(PP_Instance instance, | |
| 249 PP_Resource pp_file_system, | |
| 250 const std::string& path) { | |
| 251 PepperFileSystemHost* fs_host = GetFileSystemHostInternal( | |
| 252 instance, pp_file_system); | |
| 253 if (!fs_host) | |
| 254 return 0; | |
| 255 | |
| 256 PP_FileSystemType type = fs_host->GetType(); | |
| 257 if (type != PP_FILESYSTEMTYPE_LOCALPERSISTENT && | |
| 258 type != PP_FILESYSTEMTYPE_LOCALTEMPORARY && | |
| 259 type != PP_FILESYSTEMTYPE_EXTERNAL && | |
| 260 type != PP_FILESYSTEMTYPE_ISOLATED) | |
| 261 return 0; | |
| 262 | |
| 263 PPB_FileRef_CreateInfo info; | |
| 264 info.resource = HostResource::MakeInstanceOnly(instance); | |
| 265 info.file_system_plugin_resource = pp_file_system; | |
| 266 info.file_system_type = type; | |
| 267 | |
| 268 // Validate the path. | |
| 269 info.path = path; | |
| 270 if (!IsValidLocalPath(info.path)) | |
| 271 return 0; | |
| 272 TrimTrailingSlash(&info.path); | |
| 273 | |
| 274 info.name = GetNameForVirtualFilePath(info.path); | |
| 275 | |
| 276 PPB_FileRef_Impl* file_ref = new PPB_FileRef_Impl(info, pp_file_system); | |
| 277 | |
| 278 RendererPpapiHostImpl* renderer_host = | |
| 279 RendererPpapiHostImpl::GetForPPInstance(instance); | |
| 280 if (renderer_host && renderer_host->IsRunningInProcess()) | |
| 281 file_ref->AddFileSystemRefCount(); | |
| 282 return file_ref; | |
| 283 } | |
| 284 | |
| 285 // static | |
| 286 PPB_FileRef_Impl* PPB_FileRef_Impl::CreateExternal( | |
| 287 PP_Instance instance, | |
| 288 const base::FilePath& external_file_path, | |
| 289 const std::string& display_name) { | |
| 290 PPB_FileRef_CreateInfo info; | |
| 291 info.resource = HostResource::MakeInstanceOnly(instance); | |
| 292 info.file_system_plugin_resource = 0; | |
| 293 info.file_system_type = PP_FILESYSTEMTYPE_EXTERNAL; | |
| 294 if (display_name.empty()) | |
| 295 info.name = GetNameForExternalFilePath(external_file_path); | |
| 296 else | |
| 297 info.name = display_name; | |
| 298 | |
| 299 return new PPB_FileRef_Impl(info, external_file_path); | |
| 300 } | |
| 301 | |
| 302 PP_Resource PPB_FileRef_Impl::GetParent() { | |
| 303 if (GetFileSystemType() == PP_FILESYSTEMTYPE_EXTERNAL) | |
| 304 return 0; | |
| 305 | |
| 306 const std::string& virtual_path = GetCreateInfo().path; | |
| 307 | |
| 308 // There should always be a leading slash at least! | |
| 309 size_t pos = virtual_path.rfind('/'); | |
| 310 CHECK(pos != std::string::npos); | |
| 311 | |
| 312 // If the path is "/foo", then we want to include the slash. | |
| 313 if (pos == 0) | |
| 314 pos++; | |
| 315 std::string parent_path = virtual_path.substr(0, pos); | |
| 316 | |
| 317 scoped_refptr<PPB_FileRef_Impl> parent_ref( | |
| 318 CreateInternal(pp_instance(), file_system_, parent_path)); | |
| 319 if (!parent_ref.get()) | |
| 320 return 0; | |
| 321 return parent_ref->GetReference(); | |
| 322 } | |
| 323 | |
| 324 int32_t PPB_FileRef_Impl::MakeDirectory( | |
| 325 PP_Bool make_ancestors, | |
| 326 scoped_refptr<TrackedCallback> callback) { | |
| 327 if (!IsValidNonExternalFileSystem()) | |
| 328 return PP_ERROR_NOACCESS; | |
| 329 | |
| 330 FileSystemDispatcher* file_system_dispatcher = | |
| 331 ChildThread::current()->file_system_dispatcher(); | |
| 332 file_system_dispatcher->CreateDirectory( | |
| 333 GetFileSystemURL(), false /* exclusive */, PP_ToBool(make_ancestors), | |
| 334 base::Bind(&DidFinishFileOperation, callback)); | |
| 335 return PP_OK_COMPLETIONPENDING; | |
| 336 } | |
| 337 | |
| 338 int32_t PPB_FileRef_Impl::Touch(PP_Time last_access_time, | |
| 339 PP_Time last_modified_time, | |
| 340 scoped_refptr<TrackedCallback> callback) { | |
| 341 if (!IsValidNonExternalFileSystem()) | |
| 342 return PP_ERROR_NOACCESS; | |
| 343 | |
| 344 FileSystemDispatcher* file_system_dispatcher = | |
| 345 ChildThread::current()->file_system_dispatcher(); | |
| 346 file_system_dispatcher->TouchFile( | |
| 347 GetFileSystemURL(), | |
| 348 PPTimeToTime(last_access_time), | |
| 349 PPTimeToTime(last_modified_time), | |
| 350 base::Bind(&DidFinishFileOperation, callback)); | |
| 351 return PP_OK_COMPLETIONPENDING; | |
| 352 } | |
| 353 | |
| 354 int32_t PPB_FileRef_Impl::Delete(scoped_refptr<TrackedCallback> callback) { | |
| 355 if (!IsValidNonExternalFileSystem()) | |
| 356 return PP_ERROR_NOACCESS; | |
| 357 | |
| 358 FileSystemDispatcher* file_system_dispatcher = | |
| 359 ChildThread::current()->file_system_dispatcher(); | |
| 360 file_system_dispatcher->Remove( | |
| 361 GetFileSystemURL(), | |
| 362 false /* recursive */, | |
| 363 base::Bind(&DidFinishFileOperation, callback)); | |
| 364 return PP_OK_COMPLETIONPENDING; | |
| 365 } | |
| 366 | |
| 367 int32_t PPB_FileRef_Impl::Rename(PP_Resource new_pp_file_ref, | |
| 368 scoped_refptr<TrackedCallback> callback) { | |
| 369 EnterResourceNoLock<PPB_FileRef_API> enter(new_pp_file_ref, true); | |
| 370 if (enter.failed()) | |
| 371 return PP_ERROR_BADRESOURCE; | |
| 372 PPB_FileRef_Impl* new_file_ref = | |
| 373 static_cast<PPB_FileRef_Impl*>(enter.object()); | |
| 374 | |
| 375 if (!IsValidNonExternalFileSystem() || | |
| 376 file_system_ != new_file_ref->file_system_) | |
| 377 return PP_ERROR_NOACCESS; | |
| 378 | |
| 379 // TODO(viettrungluu): Also cancel when the new file ref is destroyed? | |
| 380 // http://crbug.com/67624 | |
| 381 FileSystemDispatcher* file_system_dispatcher = | |
| 382 ChildThread::current()->file_system_dispatcher(); | |
| 383 file_system_dispatcher->Move( | |
| 384 GetFileSystemURL(), new_file_ref->GetFileSystemURL(), | |
| 385 base::Bind(&DidFinishFileOperation, callback)); | |
| 386 return PP_OK_COMPLETIONPENDING; | |
| 387 } | |
| 388 | |
| 389 PP_Var PPB_FileRef_Impl::GetAbsolutePath() { | |
| 390 if (GetFileSystemType() != PP_FILESYSTEMTYPE_EXTERNAL) | |
| 391 return GetPath(); | |
| 392 if (!external_path_var_.get()) { | |
| 393 external_path_var_ = | |
| 394 new StringVar(external_file_system_path_.AsUTF8Unsafe()); | |
| 395 } | |
| 396 return external_path_var_->GetPPVar(); | |
| 397 } | |
| 398 | |
| 399 base::FilePath PPB_FileRef_Impl::GetSystemPath() const { | |
| 400 if (GetFileSystemType() != PP_FILESYSTEMTYPE_EXTERNAL) { | |
| 401 NOTREACHED(); | |
| 402 return base::FilePath(); | |
| 403 } | |
| 404 return external_file_system_path_; | |
| 405 } | |
| 406 | |
| 407 GURL PPB_FileRef_Impl::GetFileSystemURL() const { | |
| 408 if (GetFileSystemType() != PP_FILESYSTEMTYPE_LOCALPERSISTENT && | |
| 409 GetFileSystemType() != PP_FILESYSTEMTYPE_LOCALTEMPORARY && | |
| 410 GetFileSystemType() != PP_FILESYSTEMTYPE_EXTERNAL && | |
| 411 GetFileSystemType() != PP_FILESYSTEMTYPE_ISOLATED) { | |
| 412 NOTREACHED(); | |
| 413 return GURL(); | |
| 414 } | |
| 415 | |
| 416 const std::string& virtual_path = GetCreateInfo().path; | |
| 417 CHECK(!virtual_path.empty()); // Should always be at least "/". | |
| 418 | |
| 419 // Since |virtual_path_| starts with a '/', it looks like an absolute path. | |
| 420 // We need to trim off the '/' before calling Resolve, as FileSystem URLs | |
| 421 // start with a storage type identifier that looks like a path segment. | |
| 422 | |
| 423 PepperFileSystemHost* host = GetFileSystemHost(); | |
| 424 if (!host) | |
| 425 return GURL(); | |
| 426 | |
| 427 return GURL(host->GetRootUrl()).Resolve(net::EscapePath( | |
| 428 virtual_path.substr(1))); | |
| 429 } | |
| 430 | |
| 431 bool PPB_FileRef_Impl::OnMessageReceived(const IPC::Message& msg) { | |
| 432 bool handled = true; | |
| 433 IPC_BEGIN_MESSAGE_MAP(PPB_FileRef_Impl, msg) | |
| 434 IPC_MESSAGE_HANDLER(ViewMsg_AsyncOpenPepperFile_ACK, OnAsyncFileOpened) | |
| 435 IPC_MESSAGE_UNHANDLED(handled = false) | |
| 436 IPC_END_MESSAGE_MAP() | |
| 437 return handled; | |
| 438 } | |
| 439 | |
| 440 void PPB_FileRef_Impl::OnAsyncFileOpened( | |
| 441 base::PlatformFileError error_code, | |
| 442 IPC::PlatformFileForTransit file_for_transit, | |
| 443 int message_id) { | |
| 444 AsyncOpenFileCallback* callback = | |
| 445 pending_async_open_files_.Lookup(message_id); | |
| 446 DCHECK(callback); | |
| 447 pending_async_open_files_.Remove(message_id); | |
| 448 | |
| 449 base::PlatformFile file = | |
| 450 IPC::PlatformFileForTransitToPlatformFile(file_for_transit); | |
| 451 callback->Run(error_code, base::PassPlatformFile(&file)); | |
| 452 // Make sure we won't leak file handle if the requester has died. | |
| 453 if (file != base::kInvalidPlatformFileValue) { | |
| 454 base::FileUtilProxy::Close( | |
| 455 RenderThreadImpl::current()->GetFileThreadMessageLoopProxy().get(), | |
| 456 file, | |
| 457 base::FileUtilProxy::StatusCallback()); | |
| 458 } | |
| 459 delete callback; | |
| 460 } | |
| 461 | |
| 462 bool PPB_FileRef_Impl::IsValidNonExternalFileSystem() const { | |
| 463 PepperFileSystemHost* host = GetFileSystemHost(); | |
| 464 return HasValidFileSystem() && host && | |
| 465 host->GetType() != PP_FILESYSTEMTYPE_EXTERNAL; | |
| 466 } | |
| 467 | |
| 468 bool PPB_FileRef_Impl::HasValidFileSystem() const { | |
| 469 PepperFileSystemHost* host = GetFileSystemHost(); | |
| 470 return host && host->IsOpened(); | |
| 471 } | |
| 472 | |
| 473 int32_t PPB_FileRef_Impl::Query(PP_FileInfo* info, | |
| 474 scoped_refptr<TrackedCallback> callback) { | |
| 475 NOTREACHED(); | |
| 476 return PP_ERROR_FAILED; | |
| 477 } | |
| 478 | |
| 479 int32_t PPB_FileRef_Impl::QueryInHost( | |
| 480 linked_ptr<PP_FileInfo> info, | |
| 481 scoped_refptr<TrackedCallback> callback) { | |
| 482 if (!file_system_) { | |
| 483 // External file system | |
| 484 // We have to do something totally different for external file systems. | |
| 485 | |
| 486 // TODO(teravest): Use the SequencedWorkerPool instead. | |
| 487 scoped_refptr<base::TaskRunner> task_runner = | |
| 488 RenderThreadImpl::current()->GetFileThreadMessageLoopProxy(); | |
| 489 | |
| 490 int message_id = pending_async_open_files_.Add(new AsyncOpenFileCallback( | |
| 491 base::Bind(&QueryCallback, task_runner, info, callback))); | |
| 492 RenderThreadImpl::current()->Send(new ViewHostMsg_AsyncOpenPepperFile( | |
| 493 routing_id_, | |
| 494 GetSystemPath(), | |
| 495 PP_FILEOPENFLAG_READ, | |
| 496 message_id)); | |
| 497 } else { | |
| 498 // Non-external file system | |
| 499 if (!HasValidFileSystem()) | |
| 500 return PP_ERROR_NOACCESS; | |
| 501 | |
| 502 PP_FileSystemType file_system_type = GetFileSystemHost()->GetType(); | |
| 503 FileSystemDispatcher* file_system_dispatcher = | |
| 504 ChildThread::current()->file_system_dispatcher(); | |
| 505 file_system_dispatcher->ReadMetadata( | |
| 506 GetFileSystemURL(), | |
| 507 base::Bind(&DidReadMetadata, callback, info, file_system_type), | |
| 508 base::Bind(&DidFinishFileOperation, callback)); | |
| 509 } | |
| 510 return PP_OK_COMPLETIONPENDING; | |
| 511 } | |
| 512 | |
| 513 int32_t PPB_FileRef_Impl::ReadDirectoryEntries( | |
| 514 const PP_ArrayOutput& output, | |
| 515 scoped_refptr<TrackedCallback> callback) { | |
| 516 NOTREACHED(); | |
| 517 return PP_ERROR_FAILED; | |
| 518 } | |
| 519 | |
| 520 int32_t PPB_FileRef_Impl::ReadDirectoryEntriesInHost( | |
| 521 linked_ptr<std::vector< ::ppapi::PPB_FileRef_CreateInfo> > files, | |
| 522 linked_ptr<std::vector<PP_FileType> > file_types, | |
| 523 scoped_refptr<TrackedCallback> callback) { | |
| 524 if (!IsValidNonExternalFileSystem()) | |
| 525 return PP_ERROR_NOACCESS; | |
| 526 | |
| 527 // TODO(yzshen): Passing base::Unretained(this) to the callback could | |
| 528 // be dangerous. | |
| 529 FileSystemDispatcher* file_system_dispatcher = | |
| 530 ChildThread::current()->file_system_dispatcher(); | |
| 531 file_system_dispatcher->ReadDirectory( | |
| 532 GetFileSystemURL(), | |
| 533 base::Bind(&DidReadDirectory, | |
| 534 callback, base::Unretained(this), files, file_types), | |
| 535 base::Bind(&DidFinishFileOperation, callback)); | |
| 536 return PP_OK_COMPLETIONPENDING; | |
| 537 } | |
| 538 | |
| 539 PepperFileSystemHost* PPB_FileRef_Impl::GetFileSystemHost() const { | |
| 540 return GetFileSystemHostInternal(pp_instance(), file_system_); | |
| 541 } | |
| 542 | |
| 543 PepperFileSystemHost* PPB_FileRef_Impl::GetFileSystemHostInternal( | |
| 544 PP_Instance instance, PP_Resource resource) { | |
| 545 const ppapi::host::PpapiHost* ppapi_host = | |
| 546 RendererPpapiHost::GetForPPInstance(instance)->GetPpapiHost(); | |
| 547 if (!resource || !ppapi_host) | |
| 548 return NULL; | |
| 549 ppapi::host::ResourceHost* resource_host = | |
| 550 ppapi_host->GetResourceHost(resource); | |
| 551 if (resource_host && resource_host->IsFileSystemHost()) | |
| 552 return static_cast<PepperFileSystemHost*>(resource_host); | |
| 553 return NULL; | |
| 554 } | |
| 555 | |
| 556 } // namespace content | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 21966004:
Pepper: Move FileRef to the "new" resource proxy. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src