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_ref.h"
  67 #include "ppapi/c/ppb_file_system.h"
  68 #include "ppapi/c/ppb_fullscreen.h"
  69 #include "ppapi/c/ppb_graphics_2d.h"
  70 #include "ppapi/c/ppb_graphics_3d.h"
  71 #include "ppapi/c/ppb_host_resolver.h"
  72 #include "ppapi/c/ppb_image_data.h"
  73 #include "ppapi/c/ppb_instance.h"
  74 #include "ppapi/c/ppb_media_stream_audio_track.h"
  75 #include "ppapi/c/ppb_media_stream_video_track.h"
  76 #include "ppapi/c/ppb_messaging.h"
  77 #include "ppapi/c/ppb_mouse_cursor.h"
  78 #include "ppapi/c/ppb_mouse_lock.h"
  79 #include "ppapi/c/ppb_net_address.h"
  80 #include "ppapi/c/ppb_network_list.h"
  81 #include "ppapi/c/ppb_network_monitor.h"
  82 #include "ppapi/c/ppb_network_proxy.h"
  83 #include "ppapi/c/ppb_opengles2.h"
  84 #include "ppapi/c/ppb_tcp_socket.h"
  85 #include "ppapi/c/ppb_text_input_controller.h"
  86 #include "ppapi/c/ppb_udp_socket.h"
  87 #include "ppapi/c/ppb_url_loader.h"
  88 #include "ppapi/c/ppb_url_request_info.h"
  89 #include "ppapi/c/ppb_url_response_info.h"
  90 #include "ppapi/c/ppb_var.h"
  91 #include "ppapi/c/ppb_var_array.h"
  92 #include "ppapi/c/ppb_var_array_buffer.h"
  93 #include "ppapi/c/ppb_var_dictionary.h"
  94 #include "ppapi/c/ppb_video_decoder.h"
  95 #include "ppapi/c/ppb_video_encoder.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_camera_capabilities_private.h"
 101 #include "ppapi/c/private/ppb_camera_device_private.h"
 102 #include "ppapi/c/private/ppb_ext_crx_file_system_private.h"
 103 #include "ppapi/c/private/ppb_file_io_private.h"
 104 #include "ppapi/c/private/ppb_file_ref_private.h"
 105 #include "ppapi/c/private/ppb_find_private.h"
 106 #include "ppapi/c/private/ppb_flash.h"
 107 #include "ppapi/c/private/ppb_flash_clipboard.h"
 108 #include "ppapi/c/private/ppb_flash_device_id.h"
 109 #include "ppapi/c/private/ppb_flash_drm.h"
 110 #include "ppapi/c/private/ppb_flash_file.h"
 111 #include "ppapi/c/private/ppb_flash_font_file.h"
 112 #include "ppapi/c/private/ppb_flash_fullscreen.h"
 113 #include "ppapi/c/private/ppb_flash_menu.h"
 114 #include "ppapi/c/private/ppb_flash_message_loop.h"
 115 #include "ppapi/c/private/ppb_flash_print.h"
 116 #include "ppapi/c/private/ppb_host_resolver_private.h"
 117 #include "ppapi/c/private/ppb_input_event_private.h"
 118 #include "ppapi/c/private/ppb_instance_private.h"
 119 #include "ppapi/c/private/ppb_isolated_file_system_private.h"
 120 #include "ppapi/c/private/ppb_output_protection_private.h"
 121 #include "ppapi/c/private/ppb_pdf.h"
 122 #include "ppapi/c/private/ppb_proxy_private.h"
 123 #include "ppapi/c/private/ppb_talk_private.h"
 124 #include "ppapi/c/private/ppb_tcp_server_socket_private.h"
 125 #include "ppapi/c/private/ppb_tcp_socket_private.h"
 126 #include "ppapi/c/private/ppb_testing_private.h"
 127 #include "ppapi/c/private/ppb_udp_socket_private.h"
 128 #include "ppapi/c/private/ppb_uma_private.h"
 129 #include "ppapi/c/private/ppb_video_destination_private.h"
 130 #include "ppapi/c/private/ppb_video_source_private.h"
 131 #include "ppapi/c/private/ppb_x509_certificate_private.h"
 132 #include "ppapi/c/trusted/ppb_broker_trusted.h"
 133 #include "ppapi/c/trusted/ppb_browser_font_trusted.h"
 134 #include "ppapi/c/trusted/ppb_char_set_trusted.h"
 135 #include "ppapi/c/trusted/ppb_file_chooser_trusted.h"
 136 #include "ppapi/c/trusted/ppb_url_loader_trusted.h"
 137 #include "ppapi/shared_impl/callback_tracker.h"
 138 #include "ppapi/shared_impl/ppapi_preferences.h"
 139 #include "ppapi/shared_impl/ppapi_switches.h"
 140 #include "ppapi/shared_impl/ppb_input_event_shared.h"
 141 #include "ppapi/shared_impl/ppb_opengles2_shared.h"
 142 #include "ppapi/shared_impl/ppb_var_shared.h"
 143 #include "ppapi/shared_impl/time_conversion.h"
 144 #include "ppapi/thunk/enter.h"
 145 #include "ppapi/thunk/ppb_graphics_2d_api.h"
 146 #include "ppapi/thunk/thunk.h"
 147
 148 #if defined(OS_CHROMEOS)
 149 #include "ppapi/c/private/ppb_platform_verification_private.h"
 150 #endif
 151
 152 using ppapi::InputEventData;
 153 using ppapi::PpapiGlobals;
 154 using ppapi::TimeTicksToPPTimeTicks;
 155 using ppapi::TimeToPPTime;
 156 using ppapi::thunk::EnterResource;
 157 using ppapi::thunk::PPB_Graphics2D_API;
 158 using ppapi::thunk::PPB_InputEvent_API;
 159
 160 namespace content {
 161
 162 namespace {
 163
 164 // Global tracking info for PPAPI plugins. This is lazily created before the
 165 // first plugin is allocated, and leaked on shutdown.
 166 //
 167 // Note that we don't want a Singleton here since destroying this object will
 168 // try to free some stuff that requires WebKit, and Singletons are destroyed
 169 // after WebKit.
 170 // TODO(raymes): I'm not sure if it is completely necessary to leak the
 171 // HostGlobals. Figure out the shutdown sequence and find a way to do this
 172 // more elegantly.
 173 HostGlobals* host_globals = NULL;
 174
 175 // Maintains all currently loaded plugin libs for validating PP_Module
 176 // identifiers.
 177 typedef std::set<PluginModule*> PluginModuleSet;
 178
 179 PluginModuleSet* GetLivePluginSet() {
 180   CR_DEFINE_STATIC_LOCAL(PluginModuleSet, live_plugin_libs, ());
 181   return &live_plugin_libs;
 182 }
 183
 184 // PPB_Core --------------------------------------------------------------------
 185
 186 void AddRefResource(PP_Resource resource) {
 187   PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(resource);
 188 }
 189
 190 void ReleaseResource(PP_Resource resource) {
 191   PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(resource);
 192 }
 193
 194 PP_Time GetTime() { return TimeToPPTime(base::Time::Now()); }
 195
 196 PP_TimeTicks GetTickTime() {
 197   return TimeTicksToPPTimeTicks(base::TimeTicks::Now());
 198 }
 199
 200 void CallOnMainThread(int delay_in_msec,
 201                       PP_CompletionCallback callback,
 202                       int32_t result) {
 203   if (callback.func) {
 204     PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostDelayedTask(
 205         FROM_HERE,
 206         base::Bind(callback.func, callback.user_data, result),
 207         base::TimeDelta::FromMilliseconds(delay_in_msec));
 208   }
 209 }
 210
 211 PP_Bool IsMainThread() {
 212   return PP_FromBool(PpapiGlobals::Get()
 213                          ->GetMainThreadMessageLoop()
 214                          ->BelongsToCurrentThread());
 215 }
 216
 217 const PPB_Core core_interface = {&AddRefResource,   &ReleaseResource,
 218                                  &GetTime,          &GetTickTime,
 219                                  &CallOnMainThread, &IsMainThread};
 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 PP_FromBool(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() { return PP_FALSE; }
 248
 249 void SimulateInputEvent(PP_Instance instance, PP_Resource input_event) {
 250   PepperPluginInstanceImpl* plugin_instance =
 251       host_globals->GetInstance(instance);
 252   if (!plugin_instance)
 253     return;
 254
 255   EnterResource<PPB_InputEvent_API> enter(input_event, false);
 256   if (enter.failed())
 257     return;
 258
 259   const InputEventData& input_event_data = enter.object()->GetInputEventData();
 260   plugin_instance->SimulateInputEvent(input_event_data);
 261 }
 262
 263 PP_Var GetDocumentURL(PP_Instance instance, PP_URLComponents_Dev* components) {
 264   PepperPluginInstanceImpl* plugin_instance =
 265       host_globals->GetInstance(instance);
 266   if (!plugin_instance)
 267     return PP_MakeUndefined();
 268   return plugin_instance->GetDocumentURL(instance, components);
 269 }
 270
 271 uint32_t GetLiveVars(PP_Var live_vars[], uint32_t array_size) {
 272   std::vector<PP_Var> vars =
 273       PpapiGlobals::Get()->GetVarTracker()->GetLiveVars();
 274   for (size_t i = 0u;
 275        i < std::min(static_cast<size_t>(array_size), vars.size());
 276        ++i)
 277     live_vars[i] = vars[i];
 278   return vars.size();
 279 }
 280
 281 void SetMinimumArrayBufferSizeForShmem(PP_Instance /*instance*/,
 282                                        uint32_t /*threshold*/) {
 283   // Does nothing. Not needed in-process.
 284 }
 285
 286 void RunV8GC(PP_Instance instance) {
 287   content::PepperPluginInstance::Get(instance)->GetIsolate()->
 288       RequestGarbageCollectionForTesting(v8::Isolate::kFullGarbageCollection);
 289 }
 290
 291 const PPB_Testing_Private testing_interface = {
 292     &ReadImageData,                    &RunMessageLoop,
 293     &QuitMessageLoop,                  &GetLiveObjectsForInstance,
 294     &IsOutOfProcess,                   &SimulateInputEvent,
 295     &GetDocumentURL,                   &GetLiveVars,
 296     &SetMinimumArrayBufferSizeForShmem,&RunV8GC};
 297
 298 // GetInterface ----------------------------------------------------------------
 299
 300 const void* InternalGetInterface(const char* name) {
 301   // Allow custom interface factories first stab at the GetInterface call.
 302   const void* custom_interface =
 303       GetContentClient()->renderer()->CreatePPAPIInterface(name);
 304   if (custom_interface)
 305     return custom_interface;
 306
 307 // TODO(brettw) put these in a hash map for better performance.
 308 #define PROXIED_IFACE(iface_str, iface_struct) \
 309   if (strcmp(name, iface_str) == 0)            \
 310     return ppapi::thunk::Get##iface_struct##_Thunk();
 311
 312 #include "ppapi/thunk/interfaces_ppb_private.h"
 313 #include "ppapi/thunk/interfaces_ppb_private_flash.h"
 314 #include "ppapi/thunk/interfaces_ppb_private_no_permissions.h"
 315 #include "ppapi/thunk/interfaces_ppb_public_dev.h"
 316 #include "ppapi/thunk/interfaces_ppb_public_dev_channel.h"
 317 #include "ppapi/thunk/interfaces_ppb_public_stable.h"
 318
 319 #undef PROXIED_IFACE
 320
 321 #define LEGACY_IFACE(iface_str, function_name) \
 322   if (strcmp(name, iface_str) == 0)            \
 323     return function_name;
 324
 325 #include "ppapi/thunk/interfaces_legacy.h"
 326
 327 #undef LEGACY_IFACE
 328
 329   // Only support the testing interface when the command line switch is
 330   // specified. This allows us to prevent people from (ab)using this interface
 331   // in production code.
 332   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
 333           switches::kEnablePepperTesting)) {
 334     if (strcmp(name, PPB_TESTING_PRIVATE_INTERFACE) == 0)
 335       return &testing_interface;
 336   }
 337   return NULL;
 338 }
 339
 340 const void* GetInterface(const char* name) {
 341   // All interfaces should be used on the main thread.
 342   CHECK(IsMainThread());
 343
 344   return InternalGetInterface(name);
 345 }
 346
 347 // Gets the PPAPI entry points from the given library and places them into the
 348 // given structure. Returns true on success.
 349 bool LoadEntryPointsFromLibrary(const base::NativeLibrary& library,
 350                                 PepperPluginInfo::EntryPoints* entry_points) {
 351   entry_points->get_interface =
 352       reinterpret_cast<PepperPluginInfo::GetInterfaceFunc>(
 353           base::GetFunctionPointerFromNativeLibrary(library,
 354                                                     "PPP_GetInterface"));
 355   if (!entry_points->get_interface) {
 356     LOG(WARNING) << "No PPP_GetInterface in plugin library";
 357     return false;
 358   }
 359
 360   entry_points->initialize_module =
 361       reinterpret_cast<PepperPluginInfo::PPP_InitializeModuleFunc>(
 362           base::GetFunctionPointerFromNativeLibrary(library,
 363                                                     "PPP_InitializeModule"));
 364   if (!entry_points->initialize_module) {
 365     LOG(WARNING) << "No PPP_InitializeModule in plugin library";
 366     return false;
 367   }
 368
 369   // It's okay for PPP_ShutdownModule to not be defined and shutdown_module to
 370   // be NULL.
 371   entry_points->shutdown_module =
 372       reinterpret_cast<PepperPluginInfo::PPP_ShutdownModuleFunc>(
 373           base::GetFunctionPointerFromNativeLibrary(library,
 374                                                     "PPP_ShutdownModule"));
 375
 376   return true;
 377 }
 378
 379 void CreateHostForInProcessModule(RenderFrameImpl* render_frame,
 380                                   PluginModule* module,
 381                                   const WebPluginInfo& webplugin_info) {
 382   // First time an in-process plugin was used, make a host for it.
 383   const PepperPluginInfo* info =
 384       PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info);
 385   DCHECK(!info->is_out_of_process);
 386
 387   ppapi::PpapiPermissions perms(PepperPluginRegistry::GetInstance()
 388                                     ->GetInfoForPlugin(webplugin_info)
 389                                     ->permissions);
 390   RendererPpapiHostImpl* host_impl =
 391       RendererPpapiHostImpl::CreateOnModuleForInProcess(module, perms);
 392   render_frame->PepperPluginCreated(host_impl);
 393 }
 394
 395 }  // namespace
 396
 397 // PluginModule ----------------------------------------------------------------
 398
 399 PluginModule::PluginModule(const std::string& name,
 400                            const std::string& version,
 401                            const base::FilePath& path,
 402                            const ppapi::PpapiPermissions& perms)
 403     : callback_tracker_(new ppapi::CallbackTracker),
 404       is_in_destructor_(false),
 405       is_crashed_(false),
 406       broker_(NULL),
 407       library_(NULL),
 408       name_(name),
 409       version_(version),
 410       path_(path),
 411       permissions_(ppapi::PpapiPermissions::GetForCommandLine(perms.GetBits())),
 412       reserve_instance_id_(NULL) {
 413   // Ensure the globals object is created.
 414   if (!host_globals)
 415     host_globals = new HostGlobals;
 416
 417   memset(&entry_points_, 0, sizeof(entry_points_));
 418   pp_module_ = HostGlobals::Get()->AddModule(this);
 419   GetLivePluginSet()->insert(this);
 420 }
 421
 422 PluginModule::~PluginModule() {
 423   // In the past there have been crashes reentering the plugin module
 424   // destructor. Catch if that happens again earlier.
 425   CHECK(!is_in_destructor_);
 426   is_in_destructor_ = true;
 427
 428   // When the module is being deleted, there should be no more instances still
 429   // holding a reference to us.
 430   DCHECK(instances_.empty());
 431
 432   // Some resources and other stuff are hung off of the embedder state, which
 433   // should be torn down before the routing stuff below.
 434   renderer_ppapi_host_.reset();
 435
 436   GetLivePluginSet()->erase(this);
 437
 438   callback_tracker_->AbortAll();
 439
 440   if (entry_points_.shutdown_module)
 441     entry_points_.shutdown_module();
 442
 443   if (library_)
 444     base::UnloadNativeLibrary(library_);
 445
 446   // Notifications that we've been deleted should be last.
 447   HostGlobals::Get()->ModuleDeleted(pp_module_);
 448   if (!is_crashed_) {
 449     // When the plugin crashes, we immediately tell the lifetime delegate that
 450     // we're gone, so we don't want to tell it again.
 451     PepperPluginRegistry::GetInstance()->PluginModuleDead(this);
 452   }
 453
 454   // Don't add stuff here, the two notifications that the module object has
 455   // been deleted should be last. This allows, for example,
 456   // PPB_Proxy.IsInModuleDestructor to map PP_Module to this class during the
 457   // previous parts of the destructor.
 458 }
 459
 460 void PluginModule::SetRendererPpapiHost(
 461     scoped_ptr<RendererPpapiHostImpl> host) {
 462   renderer_ppapi_host_ = host.Pass();
 463 }
 464
 465 bool PluginModule::InitAsInternalPlugin(
 466     const PepperPluginInfo::EntryPoints& entry_points) {
 467   if (InitializeModule(entry_points)) {
 468     entry_points_ = entry_points;
 469     return true;
 470   }
 471   return false;
 472 }
 473
 474 bool PluginModule::InitAsLibrary(const base::FilePath& path) {
 475   base::NativeLibrary library = base::LoadNativeLibrary(path, NULL);
 476   if (!library)
 477     return false;
 478
 479   PepperPluginInfo::EntryPoints entry_points;
 480
 481   if (!LoadEntryPointsFromLibrary(library, &entry_points) ||
 482       !InitializeModule(entry_points)) {
 483     base::UnloadNativeLibrary(library);
 484     return false;
 485   }
 486   entry_points_ = entry_points;
 487   library_ = library;
 488   return true;
 489 }
 490
 491 void PluginModule::InitAsProxied(
 492     HostDispatcherWrapper* host_dispatcher_wrapper) {
 493   DCHECK(!host_dispatcher_wrapper_.get());
 494   host_dispatcher_wrapper_.reset(host_dispatcher_wrapper);
 495 }
 496
 497 scoped_refptr<PluginModule>
 498 PluginModule::CreateModuleForExternalPluginInstance() {
 499   // Create a new module, but don't set the lifetime delegate. This isn't a
 500   // plugin in the usual sense, so it isn't tracked by the browser.
 501   scoped_refptr<PluginModule> external_plugin_module(
 502       new PluginModule(name_, version_, path_, permissions_));
 503   return external_plugin_module;
 504 }
 505
 506 PP_ExternalPluginResult PluginModule::InitAsProxiedExternalPlugin(
 507     PepperPluginInstanceImpl* instance) {
 508   DCHECK(host_dispatcher_wrapper_.get());
 509   // InitAsProxied (for the trusted/out-of-process case) initializes only the
 510   // module, and one or more instances are added later. In this case, the
 511   // PluginInstance was already created as in-process, so we missed the proxy
 512   // AddInstance step and must do it now.
 513   host_dispatcher_wrapper_->AddInstance(instance->pp_instance());
 514   // For external plugins, we need to tell the instance to reset itself as
 515   // proxied. This will clear cached interface pointers and send DidCreate (etc)
 516   // to the plugin side of the proxy.
 517   return instance->ResetAsProxied(this);
 518 }
 519
 520 bool PluginModule::IsProxied() const { return !!host_dispatcher_wrapper_; }
 521
 522 base::ProcessId PluginModule::GetPeerProcessId() {
 523   if (host_dispatcher_wrapper_)
 524     return host_dispatcher_wrapper_->peer_pid();
 525   return base::kNullProcessId;
 526 }
 527
 528 int PluginModule::GetPluginChildId() {
 529   if (host_dispatcher_wrapper_)
 530     return host_dispatcher_wrapper_->plugin_child_id();
 531   return 0;
 532 }
 533
 534 // static
 535 const PPB_Core* PluginModule::GetCore() { return &core_interface; }
 536
 537 // static
 538 bool PluginModule::SupportsInterface(const char* name) {
 539   return !!InternalGetInterface(name);
 540 }
 541
 542 PepperPluginInstanceImpl* PluginModule::CreateInstance(
 543     RenderFrameImpl* render_frame,
 544     blink::WebPluginContainer* container,
 545     const GURL& plugin_url) {
 546   PepperPluginInstanceImpl* instance = PepperPluginInstanceImpl::Create(
 547       render_frame, this, container, plugin_url);
 548   if (!instance) {
 549     LOG(WARNING) << "Plugin doesn't support instance interface, failing.";
 550     return NULL;
 551   }
 552   if (host_dispatcher_wrapper_)
 553     host_dispatcher_wrapper_->AddInstance(instance->pp_instance());
 554   return instance;
 555 }
 556
 557 PepperPluginInstanceImpl* PluginModule::GetSomeInstance() const {
 558   // This will generally crash later if there is not actually any instance to
 559   // return, so we force a crash now to make bugs easier to track down.
 560   CHECK(!instances_.empty());
 561   return *instances_.begin();
 562 }
 563
 564 const void* PluginModule::GetPluginInterface(const char* name) const {
 565   if (host_dispatcher_wrapper_)
 566     return host_dispatcher_wrapper_->GetProxiedInterface(name);
 567
 568   // In-process plugins.
 569   if (!entry_points_.get_interface)
 570     return NULL;
 571   return entry_points_.get_interface(name);
 572 }
 573
 574 void PluginModule::InstanceCreated(PepperPluginInstanceImpl* instance) {
 575   instances_.insert(instance);
 576 }
 577
 578 void PluginModule::InstanceDeleted(PepperPluginInstanceImpl* instance) {
 579   if (host_dispatcher_wrapper_)
 580     host_dispatcher_wrapper_->RemoveInstance(instance->pp_instance());
 581   instances_.erase(instance);
 582 }
 583
 584 scoped_refptr<ppapi::CallbackTracker> PluginModule::GetCallbackTracker() {
 585   return callback_tracker_;
 586 }
 587
 588 void PluginModule::PluginCrashed() {
 589   DCHECK(!is_crashed_);  // Should only get one notification.
 590   is_crashed_ = true;
 591
 592   // Notify all instances that they crashed.
 593   for (PluginInstanceSet::iterator i = instances_.begin();
 594        i != instances_.end();
 595        ++i)
 596     (*i)->InstanceCrashed();
 597
 598   PepperPluginRegistry::GetInstance()->PluginModuleDead(this);
 599 }
 600
 601 void PluginModule::SetReserveInstanceIDCallback(
 602     PP_Bool (*reserve)(PP_Module, PP_Instance)) {
 603   DCHECK(!reserve_instance_id_) << "Only expect one set.";
 604   reserve_instance_id_ = reserve;
 605 }
 606
 607 bool PluginModule::ReserveInstanceID(PP_Instance instance) {
 608   if (reserve_instance_id_)
 609     return PP_ToBool(reserve_instance_id_(pp_module_, instance));
 610   return true;  // Instance ID is usable.
 611 }
 612
 613 void PluginModule::SetBroker(PepperBroker* broker) {
 614   DCHECK(!broker_ || !broker);
 615   broker_ = broker;
 616 }
 617
 618 PepperBroker* PluginModule::GetBroker() { return broker_; }
 619
 620 RendererPpapiHostImpl* PluginModule::CreateOutOfProcessModule(
 621     RenderFrameImpl* render_frame,
 622     const base::FilePath& path,
 623     ppapi::PpapiPermissions permissions,
 624     const IPC::ChannelHandle& channel_handle,
 625     base::ProcessId peer_pid,
 626     int plugin_child_id,
 627     bool is_external) {
 628   scoped_refptr<PepperHungPluginFilter> hung_filter(new PepperHungPluginFilter(
 629       path, render_frame->GetRoutingID(), plugin_child_id));
 630   scoped_ptr<HostDispatcherWrapper> dispatcher(new HostDispatcherWrapper(
 631       this, peer_pid, plugin_child_id, permissions, is_external));
 632   if (!dispatcher->Init(channel_handle,
 633                         &GetInterface,
 634                         ppapi::Preferences(PpapiPreferencesBuilder::Build(
 635                             render_frame->render_view()->webkit_preferences())),
 636                         hung_filter.get()))
 637     return NULL;
 638
 639   RendererPpapiHostImpl* host_impl =
 640       RendererPpapiHostImpl::CreateOnModuleForOutOfProcess(
 641           this, dispatcher->dispatcher(), permissions);
 642   render_frame->PepperPluginCreated(host_impl);
 643
 644   InitAsProxied(dispatcher.release());
 645   return host_impl;
 646 }
 647
 648 // static
 649 void PluginModule::ResetHostGlobalsForTest() {
 650   delete host_globals;
 651   host_globals = NULL;
 652 }
 653
 654 bool PluginModule::InitializeModule(
 655     const PepperPluginInfo::EntryPoints& entry_points) {
 656   DCHECK(!host_dispatcher_wrapper_.get()) << "Don't call for proxied modules.";
 657   DCHECK(entry_points.initialize_module != NULL);
 658   int retval = entry_points.initialize_module(pp_module(), &GetInterface);
 659   if (retval != 0) {
 660 #if !defined(DISABLE_NACL)
 661     LOG(WARNING) << "PPP_InitializeModule returned failure " << retval;
 662 #endif  // !defined(DISABLE_NACL)
 663     return false;
 664   }
 665   return true;
 666 }
 667
 668 scoped_refptr<PluginModule> PluginModule::Create(
 669     RenderFrameImpl* render_frame,
 670     const WebPluginInfo& webplugin_info,
 671     bool* pepper_plugin_was_registered) {
 672   *pepper_plugin_was_registered = true;
 673
 674   // See if a module has already been loaded for this plugin.
 675   base::FilePath path(webplugin_info.path);
 676   scoped_refptr<PluginModule> module =
 677       PepperPluginRegistry::GetInstance()->GetLiveModule(path);
 678   if (module.get()) {
 679     if (!module->renderer_ppapi_host()) {
 680       // If the module exists and no embedder state was associated with it,
 681       // then the module was one of the ones preloaded and is an in-process
 682       // plugin. We need to associate our host state with it.
 683       CreateHostForInProcessModule(render_frame, module.get(), webplugin_info);
 684     }
 685     return module;
 686   }
 687
 688   // In-process plugins will have always been created up-front to avoid the
 689   // sandbox restrictions. So getting here implies it doesn't exist or should
 690   // be out of process.
 691   const PepperPluginInfo* info =
 692       PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info);
 693   if (!info) {
 694     *pepper_plugin_was_registered = false;
 695     return scoped_refptr<PluginModule>();
 696   } else if (!info->is_out_of_process) {
 697     // In-process plugin not preloaded, it probably couldn't be initialized.
 698     return scoped_refptr<PluginModule>();
 699   }
 700
 701   // Out of process: have the browser start the plugin process for us.
 702   IPC::ChannelHandle channel_handle;
 703   base::ProcessId peer_pid = 0;
 704   int plugin_child_id = 0;
 705   render_frame->Send(new ViewHostMsg_OpenChannelToPepperPlugin(
 706       path, &channel_handle, &peer_pid, &plugin_child_id));
 707   if (channel_handle.name.empty()) {
 708     // Couldn't be initialized.
 709     return scoped_refptr<PluginModule>();
 710   }
 711
 712   ppapi::PpapiPermissions permissions(info->permissions);
 713
 714   // AddLiveModule must be called before any early returns since the
 715   // module's destructor will remove itself.
 716   module = new PluginModule(info->name, info->version, path, permissions);
 717   PepperPluginRegistry::GetInstance()->AddLiveModule(path, module.get());
 718
 719   if (!module->CreateOutOfProcessModule(render_frame,
 720                                         path,
 721                                         permissions,
 722                                         channel_handle,
 723                                         peer_pid,
 724                                         plugin_child_id,
 725                                         false))  // is_external = false
 726     return scoped_refptr<PluginModule>();
 727
 728   return module;
 729 }
 730
 731 }  // namespace content