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/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_uma_private_impl.h"
  29 #include "content/renderer/pepper/ppb_var_deprecated_impl.h"
  30 #include "content/renderer/pepper/ppb_video_decoder_impl.h"
  31 #include "content/renderer/pepper/renderer_ppapi_host_impl.h"
  32 #include "content/renderer/render_view_impl.h"
  33 #include "ppapi/c/dev/ppb_audio_input_dev.h"
  34 #include "ppapi/c/dev/ppb_buffer_dev.h"
  35 #include "ppapi/c/dev/ppb_char_set_dev.h"
  36 #include "ppapi/c/dev/ppb_crypto_dev.h"
  37 #include "ppapi/c/dev/ppb_cursor_control_dev.h"
  38 #include "ppapi/c/dev/ppb_device_ref_dev.h"
  39 #include "ppapi/c/dev/ppb_file_chooser_dev.h"
  40 #include "ppapi/c/dev/ppb_find_dev.h"
  41 #include "ppapi/c/dev/ppb_font_dev.h"
  42 #include "ppapi/c/dev/ppb_gles_chromium_texture_mapping_dev.h"
  43 #include "ppapi/c/dev/ppb_graphics_2d_dev.h"
  44 #include "ppapi/c/dev/ppb_memory_dev.h"
  45 #include "ppapi/c/dev/ppb_opengles2ext_dev.h"
  46 #include "ppapi/c/dev/ppb_printing_dev.h"
  47 #include "ppapi/c/dev/ppb_resource_array_dev.h"
  48 #include "ppapi/c/dev/ppb_scrollbar_dev.h"
  49 #include "ppapi/c/dev/ppb_testing_dev.h"
  50 #include "ppapi/c/dev/ppb_text_input_dev.h"
  51 #include "ppapi/c/dev/ppb_trace_event_dev.h"
  52 #include "ppapi/c/dev/ppb_truetype_font_dev.h"
  53 #include "ppapi/c/dev/ppb_url_util_dev.h"
  54 #include "ppapi/c/dev/ppb_var_deprecated.h"
  55 #include "ppapi/c/dev/ppb_var_resource_dev.h"
  56 #include "ppapi/c/dev/ppb_video_capture_dev.h"
  57 #include "ppapi/c/dev/ppb_video_decoder_dev.h"
  58 #include "ppapi/c/dev/ppb_view_dev.h"
  59 #include "ppapi/c/dev/ppb_widget_dev.h"
  60 #include "ppapi/c/dev/ppb_zoom_dev.h"
  61 #include "ppapi/c/extensions/dev/ppb_ext_alarms_dev.h"
  62 #include "ppapi/c/extensions/dev/ppb_ext_socket_dev.h"
  63 #include "ppapi/c/pp_module.h"
  64 #include "ppapi/c/pp_resource.h"
  65 #include "ppapi/c/pp_var.h"
  66 #include "ppapi/c/ppb_audio.h"
  67 #include "ppapi/c/ppb_audio_config.h"
  68 #include "ppapi/c/ppb_console.h"
  69 #include "ppapi/c/ppb_core.h"
  70 #include "ppapi/c/ppb_file_io.h"
  71 #include "ppapi/c/ppb_file_ref.h"
  72 #include "ppapi/c/ppb_file_system.h"
  73 #include "ppapi/c/ppb_fullscreen.h"
  74 #include "ppapi/c/ppb_graphics_2d.h"
  75 #include "ppapi/c/ppb_graphics_3d.h"
  76 #include "ppapi/c/ppb_host_resolver.h"
  77 #include "ppapi/c/ppb_image_data.h"
  78 #include "ppapi/c/ppb_instance.h"
  79 #include "ppapi/c/ppb_messaging.h"
  80 #include "ppapi/c/ppb_mouse_cursor.h"
  81 #include "ppapi/c/ppb_mouse_lock.h"
  82 #include "ppapi/c/ppb_net_address.h"
  83 #include "ppapi/c/ppb_network_list.h"
  84 #include "ppapi/c/ppb_network_monitor.h"
  85 #include "ppapi/c/ppb_network_proxy.h"
  86 #include "ppapi/c/ppb_opengles2.h"
  87 #include "ppapi/c/ppb_tcp_socket.h"
  88 #include "ppapi/c/ppb_text_input_controller.h"
  89 #include "ppapi/c/ppb_udp_socket.h"
  90 #include "ppapi/c/ppb_url_loader.h"
  91 #include "ppapi/c/ppb_url_request_info.h"
  92 #include "ppapi/c/ppb_url_response_info.h"
  93 #include "ppapi/c/ppb_var.h"
  94 #include "ppapi/c/ppb_var_array.h"
  95 #include "ppapi/c/ppb_var_array_buffer.h"
  96 #include "ppapi/c/ppb_var_dictionary.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_flash.h"
 104 #include "ppapi/c/private/ppb_flash_clipboard.h"
 105 #include "ppapi/c/private/ppb_flash_device_id.h"
 106 #include "ppapi/c/private/ppb_flash_drm.h"
 107 #include "ppapi/c/private/ppb_flash_file.h"
 108 #include "ppapi/c/private/ppb_flash_font_file.h"
 109 #include "ppapi/c/private/ppb_flash_fullscreen.h"
 110 #include "ppapi/c/private/ppb_flash_menu.h"
 111 #include "ppapi/c/private/ppb_flash_message_loop.h"
 112 #include "ppapi/c/private/ppb_flash_print.h"
 113 #include "ppapi/c/private/ppb_host_resolver_private.h"
 114 #include "ppapi/c/private/ppb_instance_private.h"
 115 #include "ppapi/c/private/ppb_output_protection_private.h"
 116 #include "ppapi/c/private/ppb_pdf.h"
 117 #include "ppapi/c/private/ppb_proxy_private.h"
 118 #include "ppapi/c/private/ppb_talk_private.h"
 119 #include "ppapi/c/private/ppb_tcp_server_socket_private.h"
 120 #include "ppapi/c/private/ppb_tcp_socket_private.h"
 121 #include "ppapi/c/private/ppb_udp_socket_private.h"
 122 #include "ppapi/c/private/ppb_uma_private.h"
 123 #include "ppapi/c/private/ppb_video_destination_private.h"
 124 #include "ppapi/c/private/ppb_video_source_private.h"
 125 #include "ppapi/c/private/ppb_x509_certificate_private.h"
 126 #include "ppapi/c/trusted/ppb_broker_trusted.h"
 127 #include "ppapi/c/trusted/ppb_browser_font_trusted.h"
 128 #include "ppapi/c/trusted/ppb_char_set_trusted.h"
 129 #include "ppapi/c/trusted/ppb_file_chooser_trusted.h"
 130 #include "ppapi/c/trusted/ppb_url_loader_trusted.h"
 131 #include "ppapi/shared_impl/callback_tracker.h"
 132 #include "ppapi/shared_impl/ppapi_preferences.h"
 133 #include "ppapi/shared_impl/ppapi_switches.h"
 134 #include "ppapi/shared_impl/ppb_input_event_shared.h"
 135 #include "ppapi/shared_impl/ppb_opengles2_shared.h"
 136 #include "ppapi/shared_impl/ppb_var_shared.h"
 137 #include "ppapi/shared_impl/time_conversion.h"
 138 #include "ppapi/thunk/enter.h"
 139 #include "ppapi/thunk/ppb_graphics_2d_api.h"
 140 #include "ppapi/thunk/thunk.h"
 141
 142 #if defined(OS_CHROMEOS)
 143 #include "ppapi/c/private/ppb_platform_verification_private.h"
 144 #endif
 145
 146 using ppapi::InputEventData;
 147 using ppapi::PpapiGlobals;
 148 using ppapi::TimeTicksToPPTimeTicks;
 149 using ppapi::TimeToPPTime;
 150 using ppapi::thunk::EnterResource;
 151 using ppapi::thunk::PPB_Graphics2D_API;
 152 using ppapi::thunk::PPB_InputEvent_API;
 153
 154 namespace content {
 155
 156 namespace {
 157
 158 // Global tracking info for PPAPI plugins. This is lazily created before the
 159 // first plugin is allocated, and leaked on shutdown.
 160 //
 161 // Note that we don't want a Singleton here since destroying this object will
 162 // try to free some stuff that requires WebKit, and Singletons are destroyed
 163 // after WebKit.
 164 // TODO(raymes): I'm not sure if it is completely necessary to leak the
 165 // HostGlobals. Figure out the shutdown sequence and find a way to do this
 166 // more elegantly.
 167 HostGlobals* host_globals = NULL;
 168
 169 // Maintains all currently loaded plugin libs for validating PP_Module
 170 // identifiers.
 171 typedef std::set<PluginModule*> PluginModuleSet;
 172
 173 PluginModuleSet* GetLivePluginSet() {
 174   CR_DEFINE_STATIC_LOCAL(PluginModuleSet, live_plugin_libs, ());
 175   return &live_plugin_libs;
 176 }
 177
 178 // PPB_Core --------------------------------------------------------------------
 179
 180 void AddRefResource(PP_Resource resource) {
 181   PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(resource);
 182 }
 183
 184 void ReleaseResource(PP_Resource resource) {
 185   PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(resource);
 186 }
 187
 188 PP_Time GetTime() {
 189   return TimeToPPTime(base::Time::Now());
 190 }
 191
 192 PP_TimeTicks GetTickTime() {
 193   return TimeTicksToPPTimeTicks(base::TimeTicks::Now());
 194 }
 195
 196 void CallOnMainThread(int delay_in_msec,
 197                       PP_CompletionCallback callback,
 198                       int32_t result) {
 199   if (callback.func) {
 200     PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostDelayedTask(
 201         FROM_HERE,
 202         base::Bind(callback.func, callback.user_data, result),
 203         base::TimeDelta::FromMilliseconds(delay_in_msec));
 204   }
 205 }
 206
 207 PP_Bool IsMainThread() {
 208   return BoolToPPBool(PpapiGlobals::Get()->
 209       GetMainThreadMessageLoop()->BelongsToCurrentThread());
 210 }
 211
 212 const PPB_Core core_interface = {
 213   &AddRefResource,
 214   &ReleaseResource,
 215   &GetTime,
 216   &GetTickTime,
 217   &CallOnMainThread,
 218   &IsMainThread
 219 };
 220
 221 // PPB_Testing -----------------------------------------------------------------
 222
 223 PP_Bool ReadImageData(PP_Resource device_context_2d,
 224                       PP_Resource image,
 225                       const PP_Point* top_left) {
 226   EnterResource<PPB_Graphics2D_API> enter(device_context_2d, true);
 227   if (enter.failed())
 228     return PP_FALSE;
 229   return BoolToPPBool(enter.object()->ReadImageData(image, top_left));
 230 }
 231
 232 void RunMessageLoop(PP_Instance instance) {
 233   base::MessageLoop::ScopedNestableTaskAllower allow(
 234       base::MessageLoop::current());
 235   base::MessageLoop::current()->Run();
 236 }
 237
 238 void QuitMessageLoop(PP_Instance instance) {
 239   base::MessageLoop::current()->QuitNow();
 240 }
 241
 242 uint32_t GetLiveObjectsForInstance(PP_Instance instance_id) {
 243   return HostGlobals::Get()->GetResourceTracker()->GetLiveObjectsForInstance(
 244       instance_id);
 245 }
 246
 247 PP_Bool IsOutOfProcess() {
 248   return PP_FALSE;
 249 }
 250
 251 void SimulateInputEvent(PP_Instance instance, PP_Resource input_event) {
 252   PepperPluginInstanceImpl* plugin_instance =
 253       host_globals->GetInstance(instance);
 254   if (!plugin_instance)
 255     return;
 256
 257   EnterResource<PPB_InputEvent_API> enter(input_event, false);
 258   if (enter.failed())
 259     return;
 260
 261   const InputEventData& input_event_data = enter.object()->GetInputEventData();
 262   plugin_instance->SimulateInputEvent(input_event_data);
 263 }
 264
 265 PP_Var GetDocumentURL(PP_Instance instance, PP_URLComponents_Dev* components) {
 266   PepperPluginInstanceImpl* plugin_instance =
 267       host_globals->GetInstance(instance);
 268   if (!plugin_instance)
 269     return PP_MakeUndefined();
 270   return plugin_instance->GetDocumentURL(instance, components);
 271 }
 272
 273 uint32_t GetLiveVars(PP_Var live_vars[], uint32_t array_size) {
 274   std::vector<PP_Var> vars =
 275       PpapiGlobals::Get()->GetVarTracker()->GetLiveVars();
 276   for (size_t i = 0u;
 277        i < std::min(static_cast<size_t>(array_size), vars.size());
 278        ++i)
 279     live_vars[i] = vars[i];
 280   return vars.size();
 281 }
 282
 283 void SetMinimumArrayBufferSizeForShmem(PP_Instance /*instance*/,
 284                                        uint32_t /*threshold*/) {
 285   // Does nothing. Not needed in-process.
 286 }
 287
 288 const PPB_Testing_Dev testing_interface = {
 289   &ReadImageData,
 290   &RunMessageLoop,
 291   &QuitMessageLoop,
 292   &GetLiveObjectsForInstance,
 293   &IsOutOfProcess,
 294   &SimulateInputEvent,
 295   &GetDocumentURL,
 296   &GetLiveVars,
 297   &SetMinimumArrayBufferSizeForShmem
 298 };
 299
 300 // GetInterface ----------------------------------------------------------------
 301
 302 const void* InternalGetInterface(const char* name) {
 303   // Allow custom interface factories first stab at the GetInterface call.
 304   const void* custom_interface =
 305       GetContentClient()->renderer()->CreatePPAPIInterface(name);
 306   if (custom_interface)
 307     return custom_interface;
 308
 309   // TODO(brettw) put these in a hash map for better performance.
 310   #define UNPROXIED_IFACE(api_name, iface_str, iface_struct) \
 311       if (strcmp(name, iface_str) == 0) \
 312         return ppapi::thunk::Get##iface_struct##_Thunk();
 313   #define PROXIED_IFACE(api_name, iface_str, iface_struct) \
 314       UNPROXIED_IFACE(api_name, iface_str, iface_struct)
 315
 316   #include "ppapi/thunk/interfaces_ppb_public_stable.h"
 317   #include "ppapi/thunk/interfaces_ppb_public_dev.h"
 318   #include "ppapi/thunk/interfaces_ppb_private.h"
 319   #include "ppapi/thunk/interfaces_ppb_private_no_permissions.h"
 320   #include "ppapi/thunk/interfaces_ppb_private_flash.h"
 321
 322   #undef UNPROXIED_API
 323   #undef PROXIED_IFACE
 324
 325   #define LEGACY_IFACE(iface_str, function_name) \
 326       if (strcmp(name, iface_str) == 0) \
 327         return function_name;
 328
 329   #include "ppapi/thunk/interfaces_legacy.h"
 330
 331   #undef LEGACY_IFACE
 332
 333   // Only support the testing interface when the command line switch is
 334   // specified. This allows us to prevent people from (ab)using this interface
 335   // in production code.
 336   if (CommandLine::ForCurrentProcess()->HasSwitch(
 337           switches::kEnablePepperTesting)) {
 338     if (strcmp(name, PPB_TESTING_DEV_INTERFACE) == 0 ||
 339         strcmp(name, PPB_TESTING_DEV_INTERFACE_0_9) == 0) {
 340       return &testing_interface;
 341     }
 342   }
 343   return NULL;
 344 }
 345
 346 const void* GetInterface(const char* name) {
 347   // All interfaces should be used on the main thread.
 348   CHECK(IsMainThread());
 349
 350   return InternalGetInterface(name);
 351 }
 352
 353 // Gets the PPAPI entry points from the given library and places them into the
 354 // given structure. Returns true on success.
 355 bool LoadEntryPointsFromLibrary(
 356     const base::NativeLibrary& library,
 357     PepperPluginInfo::EntryPoints* entry_points) {
 358   entry_points->get_interface =
 359       reinterpret_cast<PepperPluginInfo::GetInterfaceFunc>(
 360           base::GetFunctionPointerFromNativeLibrary(library,
 361                                                     "PPP_GetInterface"));
 362   if (!entry_points->get_interface) {
 363     LOG(WARNING) << "No PPP_GetInterface in plugin library";
 364     return false;
 365   }
 366
 367   entry_points->initialize_module =
 368       reinterpret_cast<PepperPluginInfo::PPP_InitializeModuleFunc>(
 369           base::GetFunctionPointerFromNativeLibrary(library,
 370                                                     "PPP_InitializeModule"));
 371   if (!entry_points->initialize_module) {
 372     LOG(WARNING) << "No PPP_InitializeModule in plugin library";
 373     return false;
 374   }
 375
 376   // It's okay for PPP_ShutdownModule to not be defined and shutdown_module to
 377   // be NULL.
 378   entry_points->shutdown_module =
 379       reinterpret_cast<PepperPluginInfo::PPP_ShutdownModuleFunc>(
 380           base::GetFunctionPointerFromNativeLibrary(library,
 381                                                     "PPP_ShutdownModule"));
 382
 383   return true;
 384 }
 385
 386 void CreateHostForInProcessModule(RenderViewImpl* render_view,
 387                                   PluginModule* module,
 388                                   const WebPluginInfo& webplugin_info) {
 389   // First time an in-process plugin was used, make a host for it.
 390   const PepperPluginInfo* info =
 391       PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info);
 392   DCHECK(!info->is_out_of_process);
 393
 394   ppapi::PpapiPermissions perms(
 395       PepperPluginRegistry::GetInstance()->GetInfoForPlugin(
 396           webplugin_info)->permissions);
 397   RendererPpapiHostImpl* host_impl =
 398       RendererPpapiHostImpl::CreateOnModuleForInProcess(
 399           module, perms);
 400   render_view->PepperPluginCreated(host_impl);
 401 }
 402
 403 }  // namespace
 404
 405 // PluginModule ----------------------------------------------------------------
 406
 407 PluginModule::PluginModule(const std::string& name,
 408                            const base::FilePath& path,
 409                            const ppapi::PpapiPermissions& perms)
 410     : callback_tracker_(new ppapi::CallbackTracker),
 411       is_in_destructor_(false),
 412       is_crashed_(false),
 413       broker_(NULL),
 414       library_(NULL),
 415       name_(name),
 416       path_(path),
 417       permissions_(perms),
 418       reserve_instance_id_(NULL) {
 419   // Ensure the globals object is created.
 420   if (!host_globals)
 421     host_globals = new HostGlobals;
 422
 423   memset(&entry_points_, 0, sizeof(entry_points_));
 424   pp_module_ = HostGlobals::Get()->AddModule(this);
 425   GetLivePluginSet()->insert(this);
 426 }
 427
 428 PluginModule::~PluginModule() {
 429   // In the past there have been crashes reentering the plugin module
 430   // destructor. Catch if that happens again earlier.
 431   CHECK(!is_in_destructor_);
 432   is_in_destructor_ = true;
 433
 434   // When the module is being deleted, there should be no more instances still
 435   // holding a reference to us.
 436   DCHECK(instances_.empty());
 437
 438   // Some resources and other stuff are hung off of the embedder state, which
 439   // should be torn down before the routing stuff below.
 440   renderer_ppapi_host_.reset();
 441
 442   GetLivePluginSet()->erase(this);
 443
 444   callback_tracker_->AbortAll();
 445
 446   if (entry_points_.shutdown_module)
 447     entry_points_.shutdown_module();
 448
 449   if (library_)
 450     base::UnloadNativeLibrary(library_);
 451
 452   // Notifications that we've been deleted should be last.
 453   HostGlobals::Get()->ModuleDeleted(pp_module_);
 454   if (!is_crashed_) {
 455     // When the plugin crashes, we immediately tell the lifetime delegate that
 456     // we're gone, so we don't want to tell it again.
 457     PepperPluginRegistry::GetInstance()->PluginModuleDead(this);
 458   }
 459
 460   // Don't add stuff here, the two notifications that the module object has
 461   // been deleted should be last. This allows, for example,
 462   // PPB_Proxy.IsInModuleDestructor to map PP_Module to this class during the
 463   // previous parts of the destructor.
 464 }
 465
 466 void PluginModule::SetRendererPpapiHost(
 467     scoped_ptr<RendererPpapiHostImpl> host) {
 468   renderer_ppapi_host_ = host.Pass();
 469 }
 470
 471 bool PluginModule::InitAsInternalPlugin(
 472     const PepperPluginInfo::EntryPoints& entry_points) {
 473   if (InitializeModule(entry_points)) {
 474     entry_points_ = entry_points;
 475     return true;
 476   }
 477   return false;
 478 }
 479
 480 bool PluginModule::InitAsLibrary(const base::FilePath& path) {
 481   base::NativeLibrary library = base::LoadNativeLibrary(path, NULL);
 482   if (!library)
 483     return false;
 484
 485   PepperPluginInfo::EntryPoints entry_points;
 486
 487   if (!LoadEntryPointsFromLibrary(library, &entry_points) ||
 488       !InitializeModule(entry_points)) {
 489     base::UnloadNativeLibrary(library);
 490     return false;
 491   }
 492   entry_points_ = entry_points;
 493   library_ = library;
 494   return true;
 495 }
 496
 497 void PluginModule::InitAsProxied(
 498     HostDispatcherWrapper* host_dispatcher_wrapper) {
 499   DCHECK(!host_dispatcher_wrapper_.get());
 500   host_dispatcher_wrapper_.reset(host_dispatcher_wrapper);
 501 }
 502
 503 scoped_refptr<PluginModule>
 504     PluginModule::CreateModuleForExternalPluginInstance() {
 505   // Create a new module, but don't set the lifetime delegate. This isn't a
 506   // plugin in the usual sense, so it isn't tracked by the browser.
 507   scoped_refptr<PluginModule> external_plugin_module(
 508       new PluginModule(name_,
 509                        path_,
 510                        permissions_));
 511   return external_plugin_module;
 512 }
 513
 514 PP_ExternalPluginResult PluginModule::InitAsProxiedExternalPlugin(
 515     PepperPluginInstanceImpl* instance) {
 516   DCHECK(host_dispatcher_wrapper_.get());
 517   // InitAsProxied (for the trusted/out-of-process case) initializes only the
 518   // module, and one or more instances are added later. In this case, the
 519   // PluginInstance was already created as in-process, so we missed the proxy
 520   // AddInstance step and must do it now.
 521   host_dispatcher_wrapper_->AddInstance(instance->pp_instance());
 522   // For external plugins, we need to tell the instance to reset itself as
 523   // proxied. This will clear cached interface pointers and send DidCreate (etc)
 524   // to the plugin side of the proxy.
 525   return instance->ResetAsProxied(this);
 526 }
 527
 528 bool PluginModule::IsProxied() const {
 529   return !!host_dispatcher_wrapper_;
 530 }
 531
 532 base::ProcessId PluginModule::GetPeerProcessId() {
 533   if (host_dispatcher_wrapper_)
 534     return host_dispatcher_wrapper_->peer_pid();
 535   return base::kNullProcessId;
 536 }
 537
 538 int PluginModule::GetPluginChildId() {
 539   if (host_dispatcher_wrapper_)
 540     return host_dispatcher_wrapper_->plugin_child_id();
 541   return 0;
 542 }
 543
 544 // static
 545 const PPB_Core* PluginModule::GetCore() {
 546   return &core_interface;
 547 }
 548
 549 // static
 550 bool PluginModule::SupportsInterface(const char* name) {
 551   return !!InternalGetInterface(name);
 552 }
 553
 554 PepperPluginInstanceImpl* PluginModule::CreateInstance(
 555     RenderViewImpl* render_view,
 556     WebKit::WebPluginContainer* container,
 557     const GURL& plugin_url) {
 558   PepperPluginInstanceImpl* instance = PepperPluginInstanceImpl::Create(
 559       render_view, this, container, plugin_url);
 560   if (!instance) {
 561     LOG(WARNING) << "Plugin doesn't support instance interface, failing.";
 562     return NULL;
 563   }
 564   if (host_dispatcher_wrapper_)
 565     host_dispatcher_wrapper_->AddInstance(instance->pp_instance());
 566   return instance;
 567 }
 568
 569 PepperPluginInstanceImpl* PluginModule::GetSomeInstance() const {
 570   // This will generally crash later if there is not actually any instance to
 571   // return, so we force a crash now to make bugs easier to track down.
 572   CHECK(!instances_.empty());
 573   return *instances_.begin();
 574 }
 575
 576 const void* PluginModule::GetPluginInterface(const char* name) const {
 577   if (host_dispatcher_wrapper_)
 578     return host_dispatcher_wrapper_->GetProxiedInterface(name);
 579
 580   // In-process plugins.
 581   if (!entry_points_.get_interface)
 582     return NULL;
 583   return entry_points_.get_interface(name);
 584 }
 585
 586 void PluginModule::InstanceCreated(PepperPluginInstanceImpl* instance) {
 587   instances_.insert(instance);
 588 }
 589
 590 void PluginModule::InstanceDeleted(PepperPluginInstanceImpl* instance) {
 591   if (host_dispatcher_wrapper_)
 592     host_dispatcher_wrapper_->RemoveInstance(instance->pp_instance());
 593   instances_.erase(instance);
 594 }
 595
 596 scoped_refptr<ppapi::CallbackTracker> PluginModule::GetCallbackTracker() {
 597   return callback_tracker_;
 598 }
 599
 600 void PluginModule::PluginCrashed() {
 601   DCHECK(!is_crashed_);  // Should only get one notification.
 602   is_crashed_ = true;
 603
 604   // Notify all instances that they crashed.
 605   for (PluginInstanceSet::iterator i = instances_.begin();
 606        i != instances_.end(); ++i)
 607     (*i)->InstanceCrashed();
 608
 609   PepperPluginRegistry::GetInstance()->PluginModuleDead(this);
 610 }
 611
 612 void PluginModule::SetReserveInstanceIDCallback(
 613     PP_Bool (*reserve)(PP_Module, PP_Instance)) {
 614   DCHECK(!reserve_instance_id_) << "Only expect one set.";
 615   reserve_instance_id_ = reserve;
 616 }
 617
 618 bool PluginModule::ReserveInstanceID(PP_Instance instance) {
 619   if (reserve_instance_id_)
 620     return PPBoolToBool(reserve_instance_id_(pp_module_, instance));
 621   return true;  // Instance ID is usable.
 622 }
 623
 624 void PluginModule::SetBroker(PepperBroker* broker) {
 625   DCHECK(!broker_ || !broker);
 626   broker_ = broker;
 627 }
 628
 629 PepperBroker* PluginModule::GetBroker() {
 630   return broker_;
 631 }
 632
 633 RendererPpapiHostImpl* PluginModule::CreateOutOfProcessModule(
 634     RenderViewImpl* render_view,
 635     const base::FilePath& path,
 636     ppapi::PpapiPermissions permissions,
 637     const IPC::ChannelHandle& channel_handle,
 638     base::ProcessId peer_pid,
 639     int plugin_child_id,
 640     bool is_external) {
 641   scoped_refptr<PepperHungPluginFilter> hung_filter(new PepperHungPluginFilter(
 642       path, render_view->GetRoutingID(), plugin_child_id));
 643   scoped_ptr<HostDispatcherWrapper> dispatcher(
 644       new HostDispatcherWrapper(this,
 645                                 peer_pid,
 646                                 plugin_child_id,
 647                                 permissions,
 648                                 is_external));
 649   if (!dispatcher->Init(
 650           channel_handle,
 651           &GetInterface,
 652           ppapi::Preferences(render_view->webkit_preferences()),
 653           hung_filter.get()))
 654     return NULL;
 655
 656   RendererPpapiHostImpl* host_impl =
 657       RendererPpapiHostImpl::CreateOnModuleForOutOfProcess(
 658           this, dispatcher->dispatcher(), permissions);
 659   render_view->PepperPluginCreated(host_impl);
 660
 661   InitAsProxied(dispatcher.release());
 662   return host_impl;
 663 }
 664
 665 // static
 666 void PluginModule::ResetHostGlobalsForTest() {
 667   delete host_globals;
 668   host_globals = NULL;
 669 }
 670
 671 bool PluginModule::InitializeModule(
 672     const PepperPluginInfo::EntryPoints& entry_points) {
 673   DCHECK(!host_dispatcher_wrapper_.get()) << "Don't call for proxied modules.";
 674   DCHECK(entry_points.initialize_module != NULL);
 675   int retval = entry_points.initialize_module(pp_module(), &GetInterface);
 676   if (retval != 0) {
 677     LOG(WARNING) << "PPP_InitializeModule returned failure " << retval;
 678     return false;
 679   }
 680   return true;
 681 }
 682
 683 scoped_refptr<PluginModule> PluginModule::Create(
 684     RenderViewImpl* render_view,
 685     const WebPluginInfo& webplugin_info,
 686     bool* pepper_plugin_was_registered) {
 687   *pepper_plugin_was_registered = true;
 688
 689   // See if a module has already been loaded for this plugin.
 690   base::FilePath path(webplugin_info.path);
 691   scoped_refptr<PluginModule> module =
 692       PepperPluginRegistry::GetInstance()->GetLiveModule(path);
 693   if (module.get()) {
 694     if (!module->renderer_ppapi_host()) {
 695       // If the module exists and no embedder state was associated with it,
 696       // then the module was one of the ones preloaded and is an in-process
 697       // plugin. We need to associate our host state with it.
 698       CreateHostForInProcessModule(render_view, module.get(), webplugin_info);
 699     }
 700     return module;
 701   }
 702
 703   // In-process plugins will have always been created up-front to avoid the
 704   // sandbox restrictions. So getting here implies it doesn't exist or should
 705   // be out of process.
 706   const PepperPluginInfo* info =
 707       PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info);
 708   if (!info) {
 709     *pepper_plugin_was_registered = false;
 710     return scoped_refptr<PluginModule>();
 711   } else if (!info->is_out_of_process) {
 712     // In-process plugin not preloaded, it probably couldn't be initialized.
 713     return scoped_refptr<PluginModule>();
 714   }
 715
 716   ppapi::PpapiPermissions permissions =
 717       ppapi::PpapiPermissions::GetForCommandLine(info->permissions);
 718
 719   // Out of process: have the browser start the plugin process for us.
 720   IPC::ChannelHandle channel_handle;
 721   base::ProcessId peer_pid;
 722   int plugin_child_id = 0;
 723   render_view->Send(new ViewHostMsg_OpenChannelToPepperPlugin(
 724       path, &channel_handle, &peer_pid, &plugin_child_id));
 725   if (channel_handle.name.empty()) {
 726     // Couldn't be initialized.
 727     return scoped_refptr<PluginModule>();
 728   }
 729
 730   // AddLiveModule must be called before any early returns since the
 731   // module's destructor will remove itself.
 732   module = new PluginModule(info->name, path, permissions);
 733   PepperPluginRegistry::GetInstance()->AddLiveModule(path, module.get());
 734
 735   if (!module->CreateOutOfProcessModule(render_view,
 736                                         path,
 737                                         permissions,
 738                                         channel_handle,
 739                                         peer_pid,
 740                                         plugin_child_id,
 741                                         false))  // is_external = false
 742     return scoped_refptr<PluginModule>();
 743
 744   return module;
 745 }
 746
 747 }  // namespace content