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/plugin_module.h" 6 7 #include <set> 8 9 #include "base/bind.h" 10 #include "base/command_line.h" 11 #include "base/logging.h" 12 #include "base/memory/scoped_ptr.h" 13 #include "base/message_loop/message_loop.h" 14 #include "base/message_loop/message_loop_proxy.h" 15 #include "base/time/time.h" 16 #include "build/build_config.h" 17 #include "content/common/view_messages.h" 18 #include "content/public/renderer/content_renderer_client.h" 19 #include "content/renderer/pepper/common.h" 20 #include "content/renderer/pepper/host_dispatcher_wrapper.h" 21 #include "content/renderer/pepper/host_globals.h" 22 #include "content/renderer/pepper/pepper_hung_plugin_filter.h" 23 #include "content/renderer/pepper/pepper_plugin_instance_impl.h" 24 #include "content/renderer/pepper/pepper_plugin_registry.h" 25 #include "content/renderer/pepper/ppb_image_data_impl.h" 26 #include "content/renderer/pepper/ppb_proxy_impl.h" 27 #include "content/renderer/pepper/ppb_scrollbar_impl.h" 28 #include "content/renderer/pepper/ppb_var_deprecated_impl.h" 29 #include "content/renderer/pepper/ppb_video_decoder_impl.h" 30 #include "content/renderer/pepper/renderer_ppapi_host_impl.h" 31 #include "content/renderer/render_view_impl.h" 32 #include "ppapi/c/dev/ppb_audio_input_dev.h" 33 #include "ppapi/c/dev/ppb_buffer_dev.h" 34 #include "ppapi/c/dev/ppb_char_set_dev.h" 35 #include "ppapi/c/dev/ppb_crypto_dev.h" 36 #include "ppapi/c/dev/ppb_cursor_control_dev.h" 37 #include "ppapi/c/dev/ppb_device_ref_dev.h" 38 #include "ppapi/c/dev/ppb_file_chooser_dev.h" 39 #include "ppapi/c/dev/ppb_font_dev.h" 40 #include "ppapi/c/dev/ppb_gles_chromium_texture_mapping_dev.h" 41 #include "ppapi/c/dev/ppb_memory_dev.h" 42 #include "ppapi/c/dev/ppb_opengles2ext_dev.h" 43 #include "ppapi/c/dev/ppb_printing_dev.h" 44 #include "ppapi/c/dev/ppb_scrollbar_dev.h" 45 #include "ppapi/c/dev/ppb_text_input_dev.h" 46 #include "ppapi/c/dev/ppb_trace_event_dev.h" 47 #include "ppapi/c/dev/ppb_truetype_font_dev.h" 48 #include "ppapi/c/dev/ppb_url_util_dev.h" 49 #include "ppapi/c/dev/ppb_var_deprecated.h" 50 #include "ppapi/c/dev/ppb_video_capture_dev.h" 51 #include "ppapi/c/dev/ppb_video_decoder_dev.h" 52 #include "ppapi/c/dev/ppb_view_dev.h" 53 #include "ppapi/c/dev/ppb_widget_dev.h" 54 #include "ppapi/c/dev/ppb_zoom_dev.h" 55 #include "ppapi/c/pp_module.h" 56 #include "ppapi/c/pp_resource.h" 57 #include "ppapi/c/pp_var.h" 58 #include "ppapi/c/ppb_audio.h" 59 #include "ppapi/c/ppb_audio_buffer.h" 60 #include "ppapi/c/ppb_audio_config.h" 61 #include "ppapi/c/ppb_compositor.h" 62 #include "ppapi/c/ppb_compositor_layer.h" 63 #include "ppapi/c/ppb_console.h" 64 #include "ppapi/c/ppb_core.h" 65 #include "ppapi/c/ppb_file_io.h" 66 #include "ppapi/c/ppb_file_mapping.h" 67 #include "ppapi/c/ppb_file_ref.h" 68 #include "ppapi/c/ppb_file_system.h" 69 #include "ppapi/c/ppb_fullscreen.h" 70 #include "ppapi/c/ppb_graphics_2d.h" 71 #include "ppapi/c/ppb_graphics_3d.h" 72 #include "ppapi/c/ppb_host_resolver.h" 73 #include "ppapi/c/ppb_image_data.h" 74 #include "ppapi/c/ppb_instance.h" 75 #include "ppapi/c/ppb_media_stream_audio_track.h" 76 #include "ppapi/c/ppb_media_stream_video_track.h" 77 #include "ppapi/c/ppb_messaging.h" 78 #include "ppapi/c/ppb_mouse_cursor.h" 79 #include "ppapi/c/ppb_mouse_lock.h" 80 #include "ppapi/c/ppb_net_address.h" 81 #include "ppapi/c/ppb_network_list.h" 82 #include "ppapi/c/ppb_network_monitor.h" 83 #include "ppapi/c/ppb_network_proxy.h" 84 #include "ppapi/c/ppb_opengles2.h" 85 #include "ppapi/c/ppb_tcp_socket.h" 86 #include "ppapi/c/ppb_text_input_controller.h" 87 #include "ppapi/c/ppb_udp_socket.h" 88 #include "ppapi/c/ppb_url_loader.h" 89 #include "ppapi/c/ppb_url_request_info.h" 90 #include "ppapi/c/ppb_url_response_info.h" 91 #include "ppapi/c/ppb_var.h" 92 #include "ppapi/c/ppb_var_array.h" 93 #include "ppapi/c/ppb_var_array_buffer.h" 94 #include "ppapi/c/ppb_var_dictionary.h" 95 #include "ppapi/c/ppb_video_decoder.h" 96 #include "ppapi/c/ppb_video_frame.h" 97 #include "ppapi/c/ppb_view.h" 98 #include "ppapi/c/ppp.h" 99 #include "ppapi/c/ppp_instance.h" 100 #include "ppapi/c/private/ppb_ext_crx_file_system_private.h" 101 #include "ppapi/c/private/ppb_file_io_private.h" 102 #include "ppapi/c/private/ppb_file_ref_private.h" 103 #include "ppapi/c/private/ppb_find_private.h" 104 #include "ppapi/c/private/ppb_flash.h" 105 #include "ppapi/c/private/ppb_flash_clipboard.h" 106 #include "ppapi/c/private/ppb_flash_device_id.h" 107 #include "ppapi/c/private/ppb_flash_drm.h" 108 #include "ppapi/c/private/ppb_flash_file.h" 109 #include "ppapi/c/private/ppb_flash_font_file.h" 110 #include "ppapi/c/private/ppb_flash_fullscreen.h" 111 #include "ppapi/c/private/ppb_flash_menu.h" 112 #include "ppapi/c/private/ppb_flash_message_loop.h" 113 #include "ppapi/c/private/ppb_flash_print.h" 114 #include "ppapi/c/private/ppb_host_resolver_private.h" 115 #include "ppapi/c/private/ppb_input_event_private.h" 116 #include "ppapi/c/private/ppb_instance_private.h" 117 #include "ppapi/c/private/ppb_isolated_file_system_private.h" 118 #include "ppapi/c/private/ppb_output_protection_private.h" 119 #include "ppapi/c/private/ppb_pdf.h" 120 #include "ppapi/c/private/ppb_proxy_private.h" 121 #include "ppapi/c/private/ppb_talk_private.h" 122 #include "ppapi/c/private/ppb_tcp_server_socket_private.h" 123 #include "ppapi/c/private/ppb_tcp_socket_private.h" 124 #include "ppapi/c/private/ppb_testing_private.h" 125 #include "ppapi/c/private/ppb_udp_socket_private.h" 126 #include "ppapi/c/private/ppb_uma_private.h" 127 #include "ppapi/c/private/ppb_video_destination_private.h" 128 #include "ppapi/c/private/ppb_video_source_private.h" 129 #include "ppapi/c/private/ppb_x509_certificate_private.h" 130 #include "ppapi/c/trusted/ppb_broker_trusted.h" 131 #include "ppapi/c/trusted/ppb_browser_font_trusted.h" 132 #include "ppapi/c/trusted/ppb_char_set_trusted.h" 133 #include "ppapi/c/trusted/ppb_file_chooser_trusted.h" 134 #include "ppapi/c/trusted/ppb_url_loader_trusted.h" 135 #include "ppapi/shared_impl/callback_tracker.h" 136 #include "ppapi/shared_impl/ppapi_preferences.h" 137 #include "ppapi/shared_impl/ppapi_switches.h" 138 #include "ppapi/shared_impl/ppb_input_event_shared.h" 139 #include "ppapi/shared_impl/ppb_opengles2_shared.h" 140 #include "ppapi/shared_impl/ppb_var_shared.h" 141 #include "ppapi/shared_impl/time_conversion.h" 142 #include "ppapi/thunk/enter.h" 143 #include "ppapi/thunk/ppb_graphics_2d_api.h" 144 #include "ppapi/thunk/thunk.h" 145 146 #if defined(OS_CHROMEOS) 147 #include "ppapi/c/private/ppb_platform_verification_private.h" 148 #endif 149 150 using ppapi::InputEventData; 151 using ppapi::PpapiGlobals; 152 using ppapi::TimeTicksToPPTimeTicks; 153 using ppapi::TimeToPPTime; 154 using ppapi::thunk::EnterResource; 155 using ppapi::thunk::PPB_Graphics2D_API; 156 using ppapi::thunk::PPB_InputEvent_API; 157 158 namespace content { 159 160 namespace { 161 162 // Global tracking info for PPAPI plugins. This is lazily created before the 163 // first plugin is allocated, and leaked on shutdown. 164 // 165 // Note that we don't want a Singleton here since destroying this object will 166 // try to free some stuff that requires WebKit, and Singletons are destroyed 167 // after WebKit. 168 // TODO(raymes): I'm not sure if it is completely necessary to leak the 169 // HostGlobals. Figure out the shutdown sequence and find a way to do this 170 // more elegantly. 171 HostGlobals* host_globals = NULL; 172 173 // Maintains all currently loaded plugin libs for validating PP_Module 174 // identifiers. 175 typedef std::set<PluginModule*> PluginModuleSet; 176 177 PluginModuleSet* GetLivePluginSet() { 178 CR_DEFINE_STATIC_LOCAL(PluginModuleSet, live_plugin_libs, ()); 179 return &live_plugin_libs; 180 } 181 182 // PPB_Core -------------------------------------------------------------------- 183 184 void AddRefResource(PP_Resource resource) { 185 PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(resource); 186 } 187 188 void ReleaseResource(PP_Resource resource) { 189 PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(resource); 190 } 191 192 PP_Time GetTime() { return TimeToPPTime(base::Time::Now()); } 193 194 PP_TimeTicks GetTickTime() { 195 return TimeTicksToPPTimeTicks(base::TimeTicks::Now()); 196 } 197 198 void CallOnMainThread(int delay_in_msec, 199 PP_CompletionCallback callback, 200 int32_t result) { 201 if (callback.func) { 202 PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostDelayedTask( 203 FROM_HERE, 204 base::Bind(callback.func, callback.user_data, result), 205 base::TimeDelta::FromMilliseconds(delay_in_msec)); 206 } 207 } 208 209 PP_Bool IsMainThread() { 210 return BoolToPPBool(PpapiGlobals::Get() 211 ->GetMainThreadMessageLoop() 212 ->BelongsToCurrentThread()); 213 } 214 215 const PPB_Core core_interface = {&AddRefResource, &ReleaseResource, 216 &GetTime, &GetTickTime, 217 &CallOnMainThread, &IsMainThread}; 218 219 // PPB_Testing ----------------------------------------------------------------- 220 221 PP_Bool ReadImageData(PP_Resource device_context_2d, 222 PP_Resource image, 223 const PP_Point* top_left) { 224 EnterResource<PPB_Graphics2D_API> enter(device_context_2d, true); 225 if (enter.failed()) 226 return PP_FALSE; 227 return BoolToPPBool(enter.object()->ReadImageData(image, top_left)); 228 } 229 230 void RunMessageLoop(PP_Instance instance) { 231 base::MessageLoop::ScopedNestableTaskAllower allow( 232 base::MessageLoop::current()); 233 base::MessageLoop::current()->Run(); 234 } 235 236 void QuitMessageLoop(PP_Instance instance) { 237 base::MessageLoop::current()->QuitNow(); 238 } 239 240 uint32_t GetLiveObjectsForInstance(PP_Instance instance_id) { 241 return HostGlobals::Get()->GetResourceTracker()->GetLiveObjectsForInstance( 242 instance_id); 243 } 244 245 PP_Bool IsOutOfProcess() { return PP_FALSE; } 246 247 void SimulateInputEvent(PP_Instance instance, PP_Resource input_event) { 248 PepperPluginInstanceImpl* plugin_instance = 249 host_globals->GetInstance(instance); 250 if (!plugin_instance) 251 return; 252 253 EnterResource<PPB_InputEvent_API> enter(input_event, false); 254 if (enter.failed()) 255 return; 256 257 const InputEventData& input_event_data = enter.object()->GetInputEventData(); 258 plugin_instance->SimulateInputEvent(input_event_data); 259 } 260 261 PP_Var GetDocumentURL(PP_Instance instance, PP_URLComponents_Dev* components) { 262 PepperPluginInstanceImpl* plugin_instance = 263 host_globals->GetInstance(instance); 264 if (!plugin_instance) 265 return PP_MakeUndefined(); 266 return plugin_instance->GetDocumentURL(instance, components); 267 } 268 269 uint32_t GetLiveVars(PP_Var live_vars[], uint32_t array_size) { 270 std::vector<PP_Var> vars = 271 PpapiGlobals::Get()->GetVarTracker()->GetLiveVars(); 272 for (size_t i = 0u; 273 i < std::min(static_cast<size_t>(array_size), vars.size()); 274 ++i) 275 live_vars[i] = vars[i]; 276 return vars.size(); 277 } 278 279 void SetMinimumArrayBufferSizeForShmem(PP_Instance /*instance*/, 280 uint32_t /*threshold*/) { 281 // Does nothing. Not needed in-process. 282 } 283 284 const PPB_Testing_Private testing_interface = { 285 &ReadImageData, &RunMessageLoop, 286 &QuitMessageLoop, &GetLiveObjectsForInstance, 287 &IsOutOfProcess, &SimulateInputEvent, 288 &GetDocumentURL, &GetLiveVars, 289 &SetMinimumArrayBufferSizeForShmem}; 290 291 // GetInterface ---------------------------------------------------------------- 292 293 const void* InternalGetInterface(const char* name) { 294 // Allow custom interface factories first stab at the GetInterface call. 295 const void* custom_interface = 296 GetContentClient()->renderer()->CreatePPAPIInterface(name); 297 if (custom_interface) 298 return custom_interface; 299 300 // TODO(brettw) put these in a hash map for better performance. 301 #define PROXIED_IFACE(iface_str, iface_struct) \ 302 if (strcmp(name, iface_str) == 0) \ 303 return ppapi::thunk::Get##iface_struct##_Thunk(); 304 305 #include "ppapi/thunk/interfaces_ppb_private.h" 306 #include "ppapi/thunk/interfaces_ppb_private_flash.h" 307 #include "ppapi/thunk/interfaces_ppb_private_no_permissions.h" 308 #include "ppapi/thunk/interfaces_ppb_public_dev.h" 309 #include "ppapi/thunk/interfaces_ppb_public_dev_channel.h" 310 #include "ppapi/thunk/interfaces_ppb_public_stable.h" 311 312 #undef PROXIED_IFACE 313 314 #define LEGACY_IFACE(iface_str, function_name) \ 315 if (strcmp(name, iface_str) == 0) \ 316 return function_name; 317 318 #include "ppapi/thunk/interfaces_legacy.h" 319 320 #undef LEGACY_IFACE 321 322 // Only support the testing interface when the command line switch is 323 // specified. This allows us to prevent people from (ab)using this interface 324 // in production code. 325 if (CommandLine::ForCurrentProcess()->HasSwitch( 326 switches::kEnablePepperTesting)) { 327 if (strcmp(name, PPB_TESTING_PRIVATE_INTERFACE) == 0) 328 return &testing_interface; 329 } 330 return NULL; 331 } 332 333 const void* GetInterface(const char* name) { 334 // All interfaces should be used on the main thread. 335 CHECK(IsMainThread()); 336 337 return InternalGetInterface(name); 338 } 339 340 // Gets the PPAPI entry points from the given library and places them into the 341 // given structure. Returns true on success. 342 bool LoadEntryPointsFromLibrary(const base::NativeLibrary& library, 343 PepperPluginInfo::EntryPoints* entry_points) { 344 entry_points->get_interface = 345 reinterpret_cast<PepperPluginInfo::GetInterfaceFunc>( 346 base::GetFunctionPointerFromNativeLibrary(library, 347 "PPP_GetInterface")); 348 if (!entry_points->get_interface) { 349 LOG(WARNING) << "No PPP_GetInterface in plugin library"; 350 return false; 351 } 352 353 entry_points->initialize_module = 354 reinterpret_cast<PepperPluginInfo::PPP_InitializeModuleFunc>( 355 base::GetFunctionPointerFromNativeLibrary(library, 356 "PPP_InitializeModule")); 357 if (!entry_points->initialize_module) { 358 LOG(WARNING) << "No PPP_InitializeModule in plugin library"; 359 return false; 360 } 361 362 // It's okay for PPP_ShutdownModule to not be defined and shutdown_module to 363 // be NULL. 364 entry_points->shutdown_module = 365 reinterpret_cast<PepperPluginInfo::PPP_ShutdownModuleFunc>( 366 base::GetFunctionPointerFromNativeLibrary(library, 367 "PPP_ShutdownModule")); 368 369 return true; 370 } 371 372 void CreateHostForInProcessModule(RenderFrameImpl* render_frame, 373 PluginModule* module, 374 const WebPluginInfo& webplugin_info) { 375 // First time an in-process plugin was used, make a host for it. 376 const PepperPluginInfo* info = 377 PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info); 378 DCHECK(!info->is_out_of_process); 379 380 ppapi::PpapiPermissions perms(PepperPluginRegistry::GetInstance() 381 ->GetInfoForPlugin(webplugin_info) 382 ->permissions); 383 RendererPpapiHostImpl* host_impl = 384 RendererPpapiHostImpl::CreateOnModuleForInProcess(module, perms); 385 render_frame->PepperPluginCreated(host_impl); 386 } 387 388 } // namespace 389 390 // PluginModule ---------------------------------------------------------------- 391 392 PluginModule::PluginModule(const std::string& name, 393 const base::FilePath& path, 394 const ppapi::PpapiPermissions& perms) 395 : callback_tracker_(new ppapi::CallbackTracker), 396 is_in_destructor_(false), 397 is_crashed_(false), 398 broker_(NULL), 399 library_(NULL), 400 name_(name), 401 path_(path), 402 permissions_(ppapi::PpapiPermissions::GetForCommandLine(perms.GetBits())), 403 reserve_instance_id_(NULL) { 404 // Ensure the globals object is created. 405 if (!host_globals) 406 host_globals = new HostGlobals; 407 408 memset(&entry_points_, 0, sizeof(entry_points_)); 409 pp_module_ = HostGlobals::Get()->AddModule(this); 410 GetLivePluginSet()->insert(this); 411 } 412 413 PluginModule::~PluginModule() { 414 // In the past there have been crashes reentering the plugin module 415 // destructor. Catch if that happens again earlier. 416 CHECK(!is_in_destructor_); 417 is_in_destructor_ = true; 418 419 // When the module is being deleted, there should be no more instances still 420 // holding a reference to us. 421 DCHECK(instances_.empty()); 422 423 // Some resources and other stuff are hung off of the embedder state, which 424 // should be torn down before the routing stuff below. 425 renderer_ppapi_host_.reset(); 426 427 GetLivePluginSet()->erase(this); 428 429 callback_tracker_->AbortAll(); 430 431 if (entry_points_.shutdown_module) 432 entry_points_.shutdown_module(); 433 434 if (library_) 435 base::UnloadNativeLibrary(library_); 436 437 // Notifications that we've been deleted should be last. 438 HostGlobals::Get()->ModuleDeleted(pp_module_); 439 if (!is_crashed_) { 440 // When the plugin crashes, we immediately tell the lifetime delegate that 441 // we're gone, so we don't want to tell it again. 442 PepperPluginRegistry::GetInstance()->PluginModuleDead(this); 443 } 444 445 // Don't add stuff here, the two notifications that the module object has 446 // been deleted should be last. This allows, for example, 447 // PPB_Proxy.IsInModuleDestructor to map PP_Module to this class during the 448 // previous parts of the destructor. 449 } 450 451 void PluginModule::SetRendererPpapiHost( 452 scoped_ptr<RendererPpapiHostImpl> host) { 453 renderer_ppapi_host_ = host.Pass(); 454 } 455 456 bool PluginModule::InitAsInternalPlugin( 457 const PepperPluginInfo::EntryPoints& entry_points) { 458 if (InitializeModule(entry_points)) { 459 entry_points_ = entry_points; 460 return true; 461 } 462 return false; 463 } 464 465 bool PluginModule::InitAsLibrary(const base::FilePath& path) { 466 base::NativeLibrary library = base::LoadNativeLibrary(path, NULL); 467 if (!library) 468 return false; 469 470 PepperPluginInfo::EntryPoints entry_points; 471 472 if (!LoadEntryPointsFromLibrary(library, &entry_points) || 473 !InitializeModule(entry_points)) { 474 base::UnloadNativeLibrary(library); 475 return false; 476 } 477 entry_points_ = entry_points; 478 library_ = library; 479 return true; 480 } 481 482 void PluginModule::InitAsProxied( 483 HostDispatcherWrapper* host_dispatcher_wrapper) { 484 DCHECK(!host_dispatcher_wrapper_.get()); 485 host_dispatcher_wrapper_.reset(host_dispatcher_wrapper); 486 } 487 488 scoped_refptr<PluginModule> 489 PluginModule::CreateModuleForExternalPluginInstance() { 490 // Create a new module, but don't set the lifetime delegate. This isn't a 491 // plugin in the usual sense, so it isn't tracked by the browser. 492 scoped_refptr<PluginModule> external_plugin_module( 493 new PluginModule(name_, path_, permissions_)); 494 return external_plugin_module; 495 } 496 497 PP_ExternalPluginResult PluginModule::InitAsProxiedExternalPlugin( 498 PepperPluginInstanceImpl* instance) { 499 DCHECK(host_dispatcher_wrapper_.get()); 500 // InitAsProxied (for the trusted/out-of-process case) initializes only the 501 // module, and one or more instances are added later. In this case, the 502 // PluginInstance was already created as in-process, so we missed the proxy 503 // AddInstance step and must do it now. 504 host_dispatcher_wrapper_->AddInstance(instance->pp_instance()); 505 // For external plugins, we need to tell the instance to reset itself as 506 // proxied. This will clear cached interface pointers and send DidCreate (etc) 507 // to the plugin side of the proxy. 508 return instance->ResetAsProxied(this); 509 } 510 511 bool PluginModule::IsProxied() const { return !!host_dispatcher_wrapper_; } 512 513 base::ProcessId PluginModule::GetPeerProcessId() { 514 if (host_dispatcher_wrapper_) 515 return host_dispatcher_wrapper_->peer_pid(); 516 return base::kNullProcessId; 517 } 518 519 int PluginModule::GetPluginChildId() { 520 if (host_dispatcher_wrapper_) 521 return host_dispatcher_wrapper_->plugin_child_id(); 522 return 0; 523 } 524 525 // static 526 const PPB_Core* PluginModule::GetCore() { return &core_interface; } 527 528 // static 529 bool PluginModule::SupportsInterface(const char* name) { 530 return !!InternalGetInterface(name); 531 } 532 533 PepperPluginInstanceImpl* PluginModule::CreateInstance( 534 RenderFrameImpl* render_frame, 535 blink::WebPluginContainer* container, 536 const GURL& plugin_url) { 537 PepperPluginInstanceImpl* instance = PepperPluginInstanceImpl::Create( 538 render_frame, this, container, plugin_url); 539 if (!instance) { 540 LOG(WARNING) << "Plugin doesn't support instance interface, failing."; 541 return NULL; 542 } 543 if (host_dispatcher_wrapper_) 544 host_dispatcher_wrapper_->AddInstance(instance->pp_instance()); 545 return instance; 546 } 547 548 PepperPluginInstanceImpl* PluginModule::GetSomeInstance() const { 549 // This will generally crash later if there is not actually any instance to 550 // return, so we force a crash now to make bugs easier to track down. 551 CHECK(!instances_.empty()); 552 return *instances_.begin(); 553 } 554 555 const void* PluginModule::GetPluginInterface(const char* name) const { 556 if (host_dispatcher_wrapper_) 557 return host_dispatcher_wrapper_->GetProxiedInterface(name); 558 559 // In-process plugins. 560 if (!entry_points_.get_interface) 561 return NULL; 562 return entry_points_.get_interface(name); 563 } 564 565 void PluginModule::InstanceCreated(PepperPluginInstanceImpl* instance) { 566 instances_.insert(instance); 567 } 568 569 void PluginModule::InstanceDeleted(PepperPluginInstanceImpl* instance) { 570 if (host_dispatcher_wrapper_) 571 host_dispatcher_wrapper_->RemoveInstance(instance->pp_instance()); 572 instances_.erase(instance); 573 } 574 575 scoped_refptr<ppapi::CallbackTracker> PluginModule::GetCallbackTracker() { 576 return callback_tracker_; 577 } 578 579 void PluginModule::PluginCrashed() { 580 DCHECK(!is_crashed_); // Should only get one notification. 581 is_crashed_ = true; 582 583 // Notify all instances that they crashed. 584 for (PluginInstanceSet::iterator i = instances_.begin(); 585 i != instances_.end(); 586 ++i) 587 (*i)->InstanceCrashed(); 588 589 PepperPluginRegistry::GetInstance()->PluginModuleDead(this); 590 } 591 592 void PluginModule::SetReserveInstanceIDCallback( 593 PP_Bool (*reserve)(PP_Module, PP_Instance)) { 594 DCHECK(!reserve_instance_id_) << "Only expect one set."; 595 reserve_instance_id_ = reserve; 596 } 597 598 bool PluginModule::ReserveInstanceID(PP_Instance instance) { 599 if (reserve_instance_id_) 600 return PPBoolToBool(reserve_instance_id_(pp_module_, instance)); 601 return true; // Instance ID is usable. 602 } 603 604 void PluginModule::SetBroker(PepperBroker* broker) { 605 DCHECK(!broker_ || !broker); 606 broker_ = broker; 607 } 608 609 PepperBroker* PluginModule::GetBroker() { return broker_; } 610 611 RendererPpapiHostImpl* PluginModule::CreateOutOfProcessModule( 612 RenderFrameImpl* render_frame, 613 const base::FilePath& path, 614 ppapi::PpapiPermissions permissions, 615 const IPC::ChannelHandle& channel_handle, 616 base::ProcessId peer_pid, 617 int plugin_child_id, 618 bool is_external) { 619 scoped_refptr<PepperHungPluginFilter> hung_filter(new PepperHungPluginFilter( 620 path, render_frame->GetRoutingID(), plugin_child_id)); 621 scoped_ptr<HostDispatcherWrapper> dispatcher(new HostDispatcherWrapper( 622 this, peer_pid, plugin_child_id, permissions, is_external)); 623 if (!dispatcher->Init( 624 channel_handle, 625 &GetInterface, 626 ppapi::Preferences(render_frame->render_view()->webkit_preferences()), 627 hung_filter.get())) 628 return NULL; 629 630 RendererPpapiHostImpl* host_impl = 631 RendererPpapiHostImpl::CreateOnModuleForOutOfProcess( 632 this, dispatcher->dispatcher(), permissions); 633 render_frame->PepperPluginCreated(host_impl); 634 635 InitAsProxied(dispatcher.release()); 636 return host_impl; 637 } 638 639 // static 640 void PluginModule::ResetHostGlobalsForTest() { 641 delete host_globals; 642 host_globals = NULL; 643 } 644 645 bool PluginModule::InitializeModule( 646 const PepperPluginInfo::EntryPoints& entry_points) { 647 DCHECK(!host_dispatcher_wrapper_.get()) << "Don't call for proxied modules."; 648 DCHECK(entry_points.initialize_module != NULL); 649 int retval = entry_points.initialize_module(pp_module(), &GetInterface); 650 if (retval != 0) { 651 #if !defined(DISABLE_NACL) 652 LOG(WARNING) << "PPP_InitializeModule returned failure " << retval; 653 #endif // !defined(DISABLE_NACL) 654 return false; 655 } 656 return true; 657 } 658 659 scoped_refptr<PluginModule> PluginModule::Create( 660 RenderFrameImpl* render_frame, 661 const WebPluginInfo& webplugin_info, 662 bool* pepper_plugin_was_registered) { 663 *pepper_plugin_was_registered = true; 664 665 // See if a module has already been loaded for this plugin. 666 base::FilePath path(webplugin_info.path); 667 scoped_refptr<PluginModule> module = 668 PepperPluginRegistry::GetInstance()->GetLiveModule(path); 669 if (module.get()) { 670 if (!module->renderer_ppapi_host()) { 671 // If the module exists and no embedder state was associated with it, 672 // then the module was one of the ones preloaded and is an in-process 673 // plugin. We need to associate our host state with it. 674 CreateHostForInProcessModule(render_frame, module.get(), webplugin_info); 675 } 676 return module; 677 } 678 679 // In-process plugins will have always been created up-front to avoid the 680 // sandbox restrictions. So getting here implies it doesn't exist or should 681 // be out of process. 682 const PepperPluginInfo* info = 683 PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info); 684 if (!info) { 685 *pepper_plugin_was_registered = false; 686 return scoped_refptr<PluginModule>(); 687 } else if (!info->is_out_of_process) { 688 // In-process plugin not preloaded, it probably couldn't be initialized. 689 return scoped_refptr<PluginModule>(); 690 } 691 692 // Out of process: have the browser start the plugin process for us. 693 IPC::ChannelHandle channel_handle; 694 base::ProcessId peer_pid; 695 int plugin_child_id = 0; 696 render_frame->Send(new ViewHostMsg_OpenChannelToPepperPlugin( 697 path, &channel_handle, &peer_pid, &plugin_child_id)); 698 if (channel_handle.name.empty()) { 699 // Couldn't be initialized. 700 return scoped_refptr<PluginModule>(); 701 } 702 703 ppapi::PpapiPermissions permissions(info->permissions); 704 705 // AddLiveModule must be called before any early returns since the 706 // module's destructor will remove itself. 707 module = new PluginModule(info->name, path, permissions); 708 PepperPluginRegistry::GetInstance()->AddLiveModule(path, module.get()); 709 710 if (!module->CreateOutOfProcessModule(render_frame, 711 path, 712 permissions, 713 channel_handle, 714 peer_pid, 715 plugin_child_id, 716 false)) // is_external = false 717 return scoped_refptr<PluginModule>(); 718 719 return module; 720 } 721 722 } // namespace content 723
