src/content/renderer/pepper/plugin_module.cc

   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/host_dispatcher_wrapper.h"
  20 #include "content/renderer/pepper/host_globals.h"
  21 #include "content/renderer/pepper/pepper_hung_plugin_filter.h"
  22 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
  23 #include "content/renderer/pepper/pepper_plugin_registry.h"
  24 #include "content/renderer/pepper/ppapi_preferences_builder.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 PP_FromBool(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 PP_FromBool(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 void RunV8GC(PP_Instance instance) {
 285   content::PepperPluginInstance::Get(instance)->GetIsolate()->
 286       RequestGarbageCollectionForTesting(v8::Isolate::kFullGarbageCollection);
 287 }
 288
 289 const PPB_Testing_Private testing_interface = {
 290     &ReadImageData,                    &RunMessageLoop,
 291     &QuitMessageLoop,                  &GetLiveObjectsForInstance,
 292     &IsOutOfProcess,                   &SimulateInputEvent,
 293     &GetDocumentURL,                   &GetLiveVars,
 294     &SetMinimumArrayBufferSizeForShmem,&RunV8GC};
 295
 296 // GetInterface ----------------------------------------------------------------
 297
 298 const void* InternalGetInterface(const char* name) {
 299   // Allow custom interface factories first stab at the GetInterface call.
 300   const void* custom_interface =
 301       GetContentClient()->renderer()->CreatePPAPIInterface(name);
 302   if (custom_interface)
 303     return custom_interface;
 304
 305 // TODO(brettw) put these in a hash map for better performance.
 306 #define PROXIED_IFACE(iface_str, iface_struct) \
 307   if (strcmp(name, iface_str) == 0)            \
 308     return ppapi::thunk::Get##iface_struct##_Thunk();
 309
 310 #include "ppapi/thunk/interfaces_ppb_private.h"
 311 #include "ppapi/thunk/interfaces_ppb_private_flash.h"
 312 #include "ppapi/thunk/interfaces_ppb_private_no_permissions.h"
 313 #include "ppapi/thunk/interfaces_ppb_public_dev.h"
 314 #include "ppapi/thunk/interfaces_ppb_public_dev_channel.h"
 315 #include "ppapi/thunk/interfaces_ppb_public_stable.h"
 316
 317 #undef PROXIED_IFACE
 318
 319 #define LEGACY_IFACE(iface_str, function_name) \
 320   if (strcmp(name, iface_str) == 0)            \
 321     return function_name;
 322
 323 #include "ppapi/thunk/interfaces_legacy.h"
 324
 325 #undef LEGACY_IFACE
 326
 327   // Only support the testing interface when the command line switch is
 328   // specified. This allows us to prevent people from (ab)using this interface
 329   // in production code.
 330   if (CommandLine::ForCurrentProcess()->HasSwitch(
 331           switches::kEnablePepperTesting)) {
 332     if (strcmp(name, PPB_TESTING_PRIVATE_INTERFACE) == 0)
 333       return &testing_interface;
 334   }
 335   return NULL;
 336 }
 337
 338 const void* GetInterface(const char* name) {
 339   // All interfaces should be used on the main thread.
 340   CHECK(IsMainThread());
 341
 342   return InternalGetInterface(name);
 343 }
 344
 345 // Gets the PPAPI entry points from the given library and places them into the
 346 // given structure. Returns true on success.
 347 bool LoadEntryPointsFromLibrary(const base::NativeLibrary& library,
 348                                 PepperPluginInfo::EntryPoints* entry_points) {
 349   entry_points->get_interface =
 350       reinterpret_cast<PepperPluginInfo::GetInterfaceFunc>(
 351           base::GetFunctionPointerFromNativeLibrary(library,
 352                                                     "PPP_GetInterface"));
 353   if (!entry_points->get_interface) {
 354     LOG(WARNING) << "No PPP_GetInterface in plugin library";
 355     return false;
 356   }
 357
 358   entry_points->initialize_module =
 359       reinterpret_cast<PepperPluginInfo::PPP_InitializeModuleFunc>(
 360           base::GetFunctionPointerFromNativeLibrary(library,
 361                                                     "PPP_InitializeModule"));
 362   if (!entry_points->initialize_module) {
 363     LOG(WARNING) << "No PPP_InitializeModule in plugin library";
 364     return false;
 365   }
 366
 367   // It's okay for PPP_ShutdownModule to not be defined and shutdown_module to
 368   // be NULL.
 369   entry_points->shutdown_module =
 370       reinterpret_cast<PepperPluginInfo::PPP_ShutdownModuleFunc>(
 371           base::GetFunctionPointerFromNativeLibrary(library,
 372                                                     "PPP_ShutdownModule"));
 373
 374   return true;
 375 }
 376
 377 void CreateHostForInProcessModule(RenderFrameImpl* render_frame,
 378                                   PluginModule* module,
 379                                   const WebPluginInfo& webplugin_info) {
 380   // First time an in-process plugin was used, make a host for it.
 381   const PepperPluginInfo* info =
 382       PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info);
 383   DCHECK(!info->is_out_of_process);
 384
 385   ppapi::PpapiPermissions perms(PepperPluginRegistry::GetInstance()
 386                                     ->GetInfoForPlugin(webplugin_info)
 387                                     ->permissions);
 388   RendererPpapiHostImpl* host_impl =
 389       RendererPpapiHostImpl::CreateOnModuleForInProcess(module, perms);
 390   render_frame->PepperPluginCreated(host_impl);
 391 }
 392
 393 }  // namespace
 394
 395 // PluginModule ----------------------------------------------------------------
 396
 397 PluginModule::PluginModule(const std::string& name,
 398                            const std::string& version,
 399                            const base::FilePath& path,
 400                            const ppapi::PpapiPermissions& perms)
 401     : callback_tracker_(new ppapi::CallbackTracker),
 402       is_in_destructor_(false),
 403       is_crashed_(false),
 404       broker_(NULL),
 405       library_(NULL),
 406       name_(name),
 407       version_(version),
 408       path_(path),
 409       permissions_(ppapi::PpapiPermissions::GetForCommandLine(perms.GetBits())),
 410       reserve_instance_id_(NULL) {
 411   // Ensure the globals object is created.
 412   if (!host_globals)
 413     host_globals = new HostGlobals;
 414
 415   memset(&entry_points_, 0, sizeof(entry_points_));
 416   pp_module_ = HostGlobals::Get()->AddModule(this);
 417   GetLivePluginSet()->insert(this);
 418 }
 419
 420 PluginModule::~PluginModule() {
 421   // In the past there have been crashes reentering the plugin module
 422   // destructor. Catch if that happens again earlier.
 423   CHECK(!is_in_destructor_);
 424   is_in_destructor_ = true;
 425
 426   // When the module is being deleted, there should be no more instances still
 427   // holding a reference to us.
 428   DCHECK(instances_.empty());
 429
 430   // Some resources and other stuff are hung off of the embedder state, which
 431   // should be torn down before the routing stuff below.
 432   renderer_ppapi_host_.reset();
 433
 434   GetLivePluginSet()->erase(this);
 435
 436   callback_tracker_->AbortAll();
 437
 438   if (entry_points_.shutdown_module)
 439     entry_points_.shutdown_module();
 440
 441   if (library_)
 442     base::UnloadNativeLibrary(library_);
 443
 444   // Notifications that we've been deleted should be last.
 445   HostGlobals::Get()->ModuleDeleted(pp_module_);
 446   if (!is_crashed_) {
 447     // When the plugin crashes, we immediately tell the lifetime delegate that
 448     // we're gone, so we don't want to tell it again.
 449     PepperPluginRegistry::GetInstance()->PluginModuleDead(this);
 450   }
 451
 452   // Don't add stuff here, the two notifications that the module object has
 453   // been deleted should be last. This allows, for example,
 454   // PPB_Proxy.IsInModuleDestructor to map PP_Module to this class during the
 455   // previous parts of the destructor.
 456 }
 457
 458 void PluginModule::SetRendererPpapiHost(
 459     scoped_ptr<RendererPpapiHostImpl> host) {
 460   renderer_ppapi_host_ = host.Pass();
 461 }
 462
 463 bool PluginModule::InitAsInternalPlugin(
 464     const PepperPluginInfo::EntryPoints& entry_points) {
 465   if (InitializeModule(entry_points)) {
 466     entry_points_ = entry_points;
 467     return true;
 468   }
 469   return false;
 470 }
 471
 472 bool PluginModule::InitAsLibrary(const base::FilePath& path) {
 473   base::NativeLibrary library = base::LoadNativeLibrary(path, NULL);
 474   if (!library)
 475     return false;
 476
 477   PepperPluginInfo::EntryPoints entry_points;
 478
 479   if (!LoadEntryPointsFromLibrary(library, &entry_points) ||
 480       !InitializeModule(entry_points)) {
 481     base::UnloadNativeLibrary(library);
 482     return false;
 483   }
 484   entry_points_ = entry_points;
 485   library_ = library;
 486   return true;
 487 }
 488
 489 void PluginModule::InitAsProxied(
 490     HostDispatcherWrapper* host_dispatcher_wrapper) {
 491   DCHECK(!host_dispatcher_wrapper_.get());
 492   host_dispatcher_wrapper_.reset(host_dispatcher_wrapper);
 493 }
 494
 495 scoped_refptr<PluginModule>
 496 PluginModule::CreateModuleForExternalPluginInstance() {
 497   // Create a new module, but don't set the lifetime delegate. This isn't a
 498   // plugin in the usual sense, so it isn't tracked by the browser.
 499   scoped_refptr<PluginModule> external_plugin_module(
 500       new PluginModule(name_, version_, path_, permissions_));
 501   return external_plugin_module;
 502 }
 503
 504 PP_ExternalPluginResult PluginModule::InitAsProxiedExternalPlugin(
 505     PepperPluginInstanceImpl* instance) {
 506   DCHECK(host_dispatcher_wrapper_.get());
 507   // InitAsProxied (for the trusted/out-of-process case) initializes only the
 508   // module, and one or more instances are added later. In this case, the
 509   // PluginInstance was already created as in-process, so we missed the proxy
 510   // AddInstance step and must do it now.
 511   host_dispatcher_wrapper_->AddInstance(instance->pp_instance());
 512   // For external plugins, we need to tell the instance to reset itself as
 513   // proxied. This will clear cached interface pointers and send DidCreate (etc)
 514   // to the plugin side of the proxy.
 515   return instance->ResetAsProxied(this);
 516 }
 517
 518 bool PluginModule::IsProxied() const { return !!host_dispatcher_wrapper_; }
 519
 520 base::ProcessId PluginModule::GetPeerProcessId() {
 521   if (host_dispatcher_wrapper_)
 522     return host_dispatcher_wrapper_->peer_pid();
 523   return base::kNullProcessId;
 524 }
 525
 526 int PluginModule::GetPluginChildId() {
 527   if (host_dispatcher_wrapper_)
 528     return host_dispatcher_wrapper_->plugin_child_id();
 529   return 0;
 530 }
 531
 532 // static
 533 const PPB_Core* PluginModule::GetCore() { return &core_interface; }
 534
 535 // static
 536 bool PluginModule::SupportsInterface(const char* name) {
 537   return !!InternalGetInterface(name);
 538 }
 539
 540 PepperPluginInstanceImpl* PluginModule::CreateInstance(
 541     RenderFrameImpl* render_frame,
 542     blink::WebPluginContainer* container,
 543     const GURL& plugin_url) {
 544   PepperPluginInstanceImpl* instance = PepperPluginInstanceImpl::Create(
 545       render_frame, this, container, plugin_url);
 546   if (!instance) {
 547     LOG(WARNING) << "Plugin doesn't support instance interface, failing.";
 548     return NULL;
 549   }
 550   if (host_dispatcher_wrapper_)
 551     host_dispatcher_wrapper_->AddInstance(instance->pp_instance());
 552   return instance;
 553 }
 554
 555 PepperPluginInstanceImpl* PluginModule::GetSomeInstance() const {
 556   // This will generally crash later if there is not actually any instance to
 557   // return, so we force a crash now to make bugs easier to track down.
 558   CHECK(!instances_.empty());
 559   return *instances_.begin();
 560 }
 561
 562 const void* PluginModule::GetPluginInterface(const char* name) const {
 563   if (host_dispatcher_wrapper_)
 564     return host_dispatcher_wrapper_->GetProxiedInterface(name);
 565
 566   // In-process plugins.
 567   if (!entry_points_.get_interface)
 568     return NULL;
 569   return entry_points_.get_interface(name);
 570 }
 571
 572 void PluginModule::InstanceCreated(PepperPluginInstanceImpl* instance) {
 573   instances_.insert(instance);
 574 }
 575
 576 void PluginModule::InstanceDeleted(PepperPluginInstanceImpl* instance) {
 577   if (host_dispatcher_wrapper_)
 578     host_dispatcher_wrapper_->RemoveInstance(instance->pp_instance());
 579   instances_.erase(instance);
 580 }
 581
 582 scoped_refptr<ppapi::CallbackTracker> PluginModule::GetCallbackTracker() {
 583   return callback_tracker_;
 584 }
 585
 586 void PluginModule::PluginCrashed() {
 587   DCHECK(!is_crashed_);  // Should only get one notification.
 588   is_crashed_ = true;
 589
 590   // Notify all instances that they crashed.
 591   for (PluginInstanceSet::iterator i = instances_.begin();
 592        i != instances_.end();
 593        ++i)
 594     (*i)->InstanceCrashed();
 595
 596   PepperPluginRegistry::GetInstance()->PluginModuleDead(this);
 597 }
 598
 599 void PluginModule::SetReserveInstanceIDCallback(
 600     PP_Bool (*reserve)(PP_Module, PP_Instance)) {
 601   DCHECK(!reserve_instance_id_) << "Only expect one set.";
 602   reserve_instance_id_ = reserve;
 603 }
 604
 605 bool PluginModule::ReserveInstanceID(PP_Instance instance) {
 606   if (reserve_instance_id_)
 607     return PP_ToBool(reserve_instance_id_(pp_module_, instance));
 608   return true;  // Instance ID is usable.
 609 }
 610
 611 void PluginModule::SetBroker(PepperBroker* broker) {
 612   DCHECK(!broker_ || !broker);
 613   broker_ = broker;
 614 }
 615
 616 PepperBroker* PluginModule::GetBroker() { return broker_; }
 617
 618 RendererPpapiHostImpl* PluginModule::CreateOutOfProcessModule(
 619     RenderFrameImpl* render_frame,
 620     const base::FilePath& path,
 621     ppapi::PpapiPermissions permissions,
 622     const IPC::ChannelHandle& channel_handle,
 623     base::ProcessId peer_pid,
 624     int plugin_child_id,
 625     bool is_external) {
 626   scoped_refptr<PepperHungPluginFilter> hung_filter(new PepperHungPluginFilter(
 627       path, render_frame->GetRoutingID(), plugin_child_id));
 628   scoped_ptr<HostDispatcherWrapper> dispatcher(new HostDispatcherWrapper(
 629       this, peer_pid, plugin_child_id, permissions, is_external));
 630   if (!dispatcher->Init(channel_handle,
 631                         &GetInterface,
 632                         ppapi::Preferences(PpapiPreferencesBuilder::Build(
 633                             render_frame->render_view()->webkit_preferences())),
 634                         hung_filter.get()))
 635     return NULL;
 636
 637   RendererPpapiHostImpl* host_impl =
 638       RendererPpapiHostImpl::CreateOnModuleForOutOfProcess(
 639           this, dispatcher->dispatcher(), permissions);
 640   render_frame->PepperPluginCreated(host_impl);
 641
 642   InitAsProxied(dispatcher.release());
 643   return host_impl;
 644 }
 645
 646 // static
 647 void PluginModule::ResetHostGlobalsForTest() {
 648   delete host_globals;
 649   host_globals = NULL;
 650 }
 651
 652 bool PluginModule::InitializeModule(
 653     const PepperPluginInfo::EntryPoints& entry_points) {
 654   DCHECK(!host_dispatcher_wrapper_.get()) << "Don't call for proxied modules.";
 655   DCHECK(entry_points.initialize_module != NULL);
 656   int retval = entry_points.initialize_module(pp_module(), &GetInterface);
 657   if (retval != 0) {
 658 #if !defined(DISABLE_NACL)
 659     LOG(WARNING) << "PPP_InitializeModule returned failure " << retval;
 660 #endif  // !defined(DISABLE_NACL)
 661     return false;
 662   }
 663   return true;
 664 }
 665
 666 scoped_refptr<PluginModule> PluginModule::Create(
 667     RenderFrameImpl* render_frame,
 668     const WebPluginInfo& webplugin_info,
 669     bool* pepper_plugin_was_registered) {
 670   *pepper_plugin_was_registered = true;
 671
 672   // See if a module has already been loaded for this plugin.
 673   base::FilePath path(webplugin_info.path);
 674   scoped_refptr<PluginModule> module =
 675       PepperPluginRegistry::GetInstance()->GetLiveModule(path);
 676   if (module.get()) {
 677     if (!module->renderer_ppapi_host()) {
 678       // If the module exists and no embedder state was associated with it,
 679       // then the module was one of the ones preloaded and is an in-process
 680       // plugin. We need to associate our host state with it.
 681       CreateHostForInProcessModule(render_frame, module.get(), webplugin_info);
 682     }
 683     return module;
 684   }
 685
 686   // In-process plugins will have always been created up-front to avoid the
 687   // sandbox restrictions. So getting here implies it doesn't exist or should
 688   // be out of process.
 689   const PepperPluginInfo* info =
 690       PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info);
 691   if (!info) {
 692     *pepper_plugin_was_registered = false;
 693     return scoped_refptr<PluginModule>();
 694   } else if (!info->is_out_of_process) {
 695     // In-process plugin not preloaded, it probably couldn't be initialized.
 696     return scoped_refptr<PluginModule>();
 697   }
 698
 699   // Out of process: have the browser start the plugin process for us.
 700   IPC::ChannelHandle channel_handle;
 701   base::ProcessId peer_pid = 0;
 702   int plugin_child_id = 0;
 703   render_frame->Send(new ViewHostMsg_OpenChannelToPepperPlugin(
 704       path, &channel_handle, &peer_pid, &plugin_child_id));
 705   if (channel_handle.name.empty()) {
 706     // Couldn't be initialized.
 707     return scoped_refptr<PluginModule>();
 708   }
 709
 710   ppapi::PpapiPermissions permissions(info->permissions);
 711
 712   // AddLiveModule must be called before any early returns since the
 713   // module's destructor will remove itself.
 714   module = new PluginModule(info->name, info->version, path, permissions);
 715   PepperPluginRegistry::GetInstance()->AddLiveModule(path, module.get());
 716
 717   if (!module->CreateOutOfProcessModule(render_frame,
 718                                         path,
 719                                         permissions,
 720                                         channel_handle,
 721                                         peer_pid,
 722                                         plugin_child_id,
 723                                         false))  // is_external = false
 724     return scoped_refptr<PluginModule>();
 725
 726   return module;
 727 }
 728
 729 }  // namespace content