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