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_tcp_server_socket_private.h"
 124 #include "ppapi/c/private/ppb_tcp_socket_private.h"
 125 #include "ppapi/c/private/ppb_testing_private.h"
 126 #include "ppapi/c/private/ppb_udp_socket_private.h"
 127 #include "ppapi/c/private/ppb_uma_private.h"
 128 #include "ppapi/c/private/ppb_video_destination_private.h"
 129 #include "ppapi/c/private/ppb_video_source_private.h"
 130 #include "ppapi/c/private/ppb_x509_certificate_private.h"
 131 #include "ppapi/c/trusted/ppb_broker_trusted.h"
 132 #include "ppapi/c/trusted/ppb_browser_font_trusted.h"
 133 #include "ppapi/c/trusted/ppb_char_set_trusted.h"
 134 #include "ppapi/c/trusted/ppb_file_chooser_trusted.h"
 135 #include "ppapi/c/trusted/ppb_url_loader_trusted.h"
 136 #include "ppapi/shared_impl/callback_tracker.h"
 137 #include "ppapi/shared_impl/ppapi_preferences.h"
 138 #include "ppapi/shared_impl/ppapi_switches.h"
 139 #include "ppapi/shared_impl/ppb_input_event_shared.h"
 140 #include "ppapi/shared_impl/ppb_opengles2_shared.h"
 141 #include "ppapi/shared_impl/ppb_var_shared.h"
 142 #include "ppapi/shared_impl/time_conversion.h"
 143 #include "ppapi/thunk/enter.h"
 144 #include "ppapi/thunk/ppb_graphics_2d_api.h"
 145 #include "ppapi/thunk/thunk.h"
 146
 147 #if defined(OS_CHROMEOS)
 148 #include "ppapi/c/private/ppb_platform_verification_private.h"
 149 #endif
 150
 151 using ppapi::InputEventData;
 152 using ppapi::PpapiGlobals;
 153 using ppapi::TimeTicksToPPTimeTicks;
 154 using ppapi::TimeToPPTime;
 155 using ppapi::thunk::EnterResource;
 156 using ppapi::thunk::PPB_Graphics2D_API;
 157 using ppapi::thunk::PPB_InputEvent_API;
 158
 159 namespace content {
 160
 161 namespace {
 162
 163 // Global tracking info for PPAPI plugins. This is lazily created before the
 164 // first plugin is allocated, and leaked on shutdown.
 165 //
 166 // Note that we don't want a Singleton here since destroying this object will
 167 // try to free some stuff that requires WebKit, and Singletons are destroyed
 168 // after WebKit.
 169 // TODO(raymes): I'm not sure if it is completely necessary to leak the
 170 // HostGlobals. Figure out the shutdown sequence and find a way to do this
 171 // more elegantly.
 172 HostGlobals* host_globals = NULL;
 173
 174 // Maintains all currently loaded plugin libs for validating PP_Module
 175 // identifiers.
 176 typedef std::set<PluginModule*> PluginModuleSet;
 177
 178 PluginModuleSet* GetLivePluginSet() {
 179   CR_DEFINE_STATIC_LOCAL(PluginModuleSet, live_plugin_libs, ());
 180   return &live_plugin_libs;
 181 }
 182
 183 // PPB_Core --------------------------------------------------------------------
 184
 185 void AddRefResource(PP_Resource resource) {
 186   PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(resource);
 187 }
 188
 189 void ReleaseResource(PP_Resource resource) {
 190   PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(resource);
 191 }
 192
 193 PP_Time GetTime() { return TimeToPPTime(base::Time::Now()); }
 194
 195 PP_TimeTicks GetTickTime() {
 196   return TimeTicksToPPTimeTicks(base::TimeTicks::Now());
 197 }
 198
 199 void CallOnMainThread(int delay_in_msec,
 200                       PP_CompletionCallback callback,
 201                       int32_t result) {
 202   if (callback.func) {
 203     PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostDelayedTask(
 204         FROM_HERE,
 205         base::Bind(callback.func, callback.user_data, result),
 206         base::TimeDelta::FromMilliseconds(delay_in_msec));
 207   }
 208 }
 209
 210 PP_Bool IsMainThread() {
 211   return PP_FromBool(PpapiGlobals::Get()
 212                          ->GetMainThreadMessageLoop()
 213                          ->BelongsToCurrentThread());
 214 }
 215
 216 const PPB_Core core_interface = {&AddRefResource,   &ReleaseResource,
 217                                  &GetTime,          &GetTickTime,
 218                                  &CallOnMainThread, &IsMainThread};
 219
 220 // PPB_Testing -----------------------------------------------------------------
 221
 222 PP_Bool ReadImageData(PP_Resource device_context_2d,
 223                       PP_Resource image,
 224                       const PP_Point* top_left) {
 225   EnterResource<PPB_Graphics2D_API> enter(device_context_2d, true);
 226   if (enter.failed())
 227     return PP_FALSE;
 228   return PP_FromBool(enter.object()->ReadImageData(image, top_left));
 229 }
 230
 231 void RunMessageLoop(PP_Instance instance) {
 232   base::MessageLoop::ScopedNestableTaskAllower allow(
 233       base::MessageLoop::current());
 234   base::MessageLoop::current()->Run();
 235 }
 236
 237 void QuitMessageLoop(PP_Instance instance) {
 238   base::MessageLoop::current()->QuitNow();
 239 }
 240
 241 uint32_t GetLiveObjectsForInstance(PP_Instance instance_id) {
 242   return HostGlobals::Get()->GetResourceTracker()->GetLiveObjectsForInstance(
 243       instance_id);
 244 }
 245
 246 PP_Bool IsOutOfProcess() { return PP_FALSE; }
 247
 248 void SimulateInputEvent(PP_Instance instance, PP_Resource input_event) {
 249   PepperPluginInstanceImpl* plugin_instance =
 250       host_globals->GetInstance(instance);
 251   if (!plugin_instance)
 252     return;
 253
 254   EnterResource<PPB_InputEvent_API> enter(input_event, false);
 255   if (enter.failed())
 256     return;
 257
 258   const InputEventData& input_event_data = enter.object()->GetInputEventData();
 259   plugin_instance->SimulateInputEvent(input_event_data);
 260 }
 261
 262 PP_Var GetDocumentURL(PP_Instance instance, PP_URLComponents_Dev* components) {
 263   PepperPluginInstanceImpl* plugin_instance =
 264       host_globals->GetInstance(instance);
 265   if (!plugin_instance)
 266     return PP_MakeUndefined();
 267   return plugin_instance->GetDocumentURL(instance, components);
 268 }
 269
 270 uint32_t GetLiveVars(PP_Var live_vars[], uint32_t array_size) {
 271   std::vector<PP_Var> vars =
 272       PpapiGlobals::Get()->GetVarTracker()->GetLiveVars();
 273   for (size_t i = 0u;
 274        i < std::min(static_cast<size_t>(array_size), vars.size());
 275        ++i)
 276     live_vars[i] = vars[i];
 277   return vars.size();
 278 }
 279
 280 void SetMinimumArrayBufferSizeForShmem(PP_Instance /*instance*/,
 281                                        uint32_t /*threshold*/) {
 282   // Does nothing. Not needed in-process.
 283 }
 284
 285 void RunV8GC(PP_Instance instance) {
 286   content::PepperPluginInstance::Get(instance)->GetIsolate()->
 287       RequestGarbageCollectionForTesting(v8::Isolate::kFullGarbageCollection);
 288 }
 289
 290 const PPB_Testing_Private testing_interface = {
 291     &ReadImageData,                    &RunMessageLoop,
 292     &QuitMessageLoop,                  &GetLiveObjectsForInstance,
 293     &IsOutOfProcess,                   &SimulateInputEvent,
 294     &GetDocumentURL,                   &GetLiveVars,
 295     &SetMinimumArrayBufferSizeForShmem,&RunV8GC};
 296
 297 // GetInterface ----------------------------------------------------------------
 298
 299 const void* InternalGetInterface(const char* name) {
 300   // Allow custom interface factories first stab at the GetInterface call.
 301   const void* custom_interface =
 302       GetContentClient()->renderer()->CreatePPAPIInterface(name);
 303   if (custom_interface)
 304     return custom_interface;
 305
 306 // TODO(brettw) put these in a hash map for better performance.
 307 #define PROXIED_IFACE(iface_str, iface_struct) \
 308   if (strcmp(name, iface_str) == 0)            \
 309     return ppapi::thunk::Get##iface_struct##_Thunk();
 310
 311 #include "ppapi/thunk/interfaces_ppb_private.h"
 312 #include "ppapi/thunk/interfaces_ppb_private_flash.h"
 313 #include "ppapi/thunk/interfaces_ppb_private_no_permissions.h"
 314 #include "ppapi/thunk/interfaces_ppb_public_dev.h"
 315 #include "ppapi/thunk/interfaces_ppb_public_dev_channel.h"
 316 #include "ppapi/thunk/interfaces_ppb_public_stable.h"
 317
 318 #undef PROXIED_IFACE
 319
 320 #define LEGACY_IFACE(iface_str, function_name) \
 321   if (strcmp(name, iface_str) == 0)            \
 322     return function_name;
 323
 324 #include "ppapi/thunk/interfaces_legacy.h"
 325
 326 #undef LEGACY_IFACE
 327
 328   // Only support the testing interface when the command line switch is
 329   // specified. This allows us to prevent people from (ab)using this interface
 330   // in production code.
 331   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
 332           switches::kEnablePepperTesting)) {
 333     if (strcmp(name, PPB_TESTING_PRIVATE_INTERFACE) == 0)
 334       return &testing_interface;
 335   }
 336   return NULL;
 337 }
 338
 339 const void* GetInterface(const char* name) {
 340   // All interfaces should be used on the main thread.
 341   CHECK(IsMainThread());
 342
 343   return InternalGetInterface(name);
 344 }
 345
 346 // Gets the PPAPI entry points from the given library and places them into the
 347 // given structure. Returns true on success.
 348 bool LoadEntryPointsFromLibrary(const base::NativeLibrary& library,
 349                                 PepperPluginInfo::EntryPoints* entry_points) {
 350   entry_points->get_interface =
 351       reinterpret_cast<PepperPluginInfo::GetInterfaceFunc>(
 352           base::GetFunctionPointerFromNativeLibrary(library,
 353                                                     "PPP_GetInterface"));
 354   if (!entry_points->get_interface) {
 355     LOG(WARNING) << "No PPP_GetInterface in plugin library";
 356     return false;
 357   }
 358
 359   entry_points->initialize_module =
 360       reinterpret_cast<PepperPluginInfo::PPP_InitializeModuleFunc>(
 361           base::GetFunctionPointerFromNativeLibrary(library,
 362                                                     "PPP_InitializeModule"));
 363   if (!entry_points->initialize_module) {
 364     LOG(WARNING) << "No PPP_InitializeModule in plugin library";
 365     return false;
 366   }
 367
 368   // It's okay for PPP_ShutdownModule to not be defined and shutdown_module to
 369   // be NULL.
 370   entry_points->shutdown_module =
 371       reinterpret_cast<PepperPluginInfo::PPP_ShutdownModuleFunc>(
 372           base::GetFunctionPointerFromNativeLibrary(library,
 373                                                     "PPP_ShutdownModule"));
 374
 375   return true;
 376 }
 377
 378 void CreateHostForInProcessModule(RenderFrameImpl* render_frame,
 379                                   PluginModule* module,
 380                                   const WebPluginInfo& webplugin_info) {
 381   // First time an in-process plugin was used, make a host for it.
 382   const PepperPluginInfo* info =
 383       PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info);
 384   DCHECK(!info->is_out_of_process);
 385
 386   ppapi::PpapiPermissions perms(PepperPluginRegistry::GetInstance()
 387                                     ->GetInfoForPlugin(webplugin_info)
 388                                     ->permissions);
 389   RendererPpapiHostImpl* host_impl =
 390       RendererPpapiHostImpl::CreateOnModuleForInProcess(module, perms);
 391   render_frame->PepperPluginCreated(host_impl);
 392 }
 393
 394 }  // namespace
 395
 396 // PluginModule ----------------------------------------------------------------
 397
 398 PluginModule::PluginModule(const std::string& name,
 399                            const std::string& version,
 400                            const base::FilePath& path,
 401                            const ppapi::PpapiPermissions& perms)
 402     : callback_tracker_(new ppapi::CallbackTracker),
 403       is_in_destructor_(false),
 404       is_crashed_(false),
 405       broker_(NULL),
 406       library_(NULL),
 407       name_(name),
 408       version_(version),
 409       path_(path),
 410       permissions_(ppapi::PpapiPermissions::GetForCommandLine(perms.GetBits())),
 411       reserve_instance_id_(NULL) {
 412   // Ensure the globals object is created.
 413   if (!host_globals)
 414     host_globals = new HostGlobals;
 415
 416   memset(&entry_points_, 0, sizeof(entry_points_));
 417   pp_module_ = HostGlobals::Get()->AddModule(this);
 418   GetLivePluginSet()->insert(this);
 419 }
 420
 421 PluginModule::~PluginModule() {
 422   // In the past there have been crashes reentering the plugin module
 423   // destructor. Catch if that happens again earlier.
 424   CHECK(!is_in_destructor_);
 425   is_in_destructor_ = true;
 426
 427   // When the module is being deleted, there should be no more instances still
 428   // holding a reference to us.
 429   DCHECK(instances_.empty());
 430
 431   // Some resources and other stuff are hung off of the embedder state, which
 432   // should be torn down before the routing stuff below.
 433   renderer_ppapi_host_.reset();
 434
 435   GetLivePluginSet()->erase(this);
 436
 437   callback_tracker_->AbortAll();
 438
 439   if (entry_points_.shutdown_module)
 440     entry_points_.shutdown_module();
 441
 442   if (library_)
 443     base::UnloadNativeLibrary(library_);
 444
 445   // Notifications that we've been deleted should be last.
 446   HostGlobals::Get()->ModuleDeleted(pp_module_);
 447   if (!is_crashed_) {
 448     // When the plugin crashes, we immediately tell the lifetime delegate that
 449     // we're gone, so we don't want to tell it again.
 450     PepperPluginRegistry::GetInstance()->PluginModuleDead(this);
 451   }
 452
 453   // Don't add stuff here, the two notifications that the module object has
 454   // been deleted should be last. This allows, for example,
 455   // PPB_Proxy.IsInModuleDestructor to map PP_Module to this class during the
 456   // previous parts of the destructor.
 457 }
 458
 459 void PluginModule::SetRendererPpapiHost(
 460     scoped_ptr<RendererPpapiHostImpl> host) {
 461   renderer_ppapi_host_ = host.Pass();
 462 }
 463
 464 bool PluginModule::InitAsInternalPlugin(
 465     const PepperPluginInfo::EntryPoints& entry_points) {
 466   if (InitializeModule(entry_points)) {
 467     entry_points_ = entry_points;
 468     return true;
 469   }
 470   return false;
 471 }
 472
 473 bool PluginModule::InitAsLibrary(const base::FilePath& path) {
 474   base::NativeLibrary library = base::LoadNativeLibrary(path, NULL);
 475   if (!library)
 476     return false;
 477
 478   PepperPluginInfo::EntryPoints entry_points;
 479
 480   if (!LoadEntryPointsFromLibrary(library, &entry_points) ||
 481       !InitializeModule(entry_points)) {
 482     base::UnloadNativeLibrary(library);
 483     return false;
 484   }
 485   entry_points_ = entry_points;
 486   library_ = library;
 487   return true;
 488 }
 489
 490 void PluginModule::InitAsProxied(
 491     HostDispatcherWrapper* host_dispatcher_wrapper) {
 492   DCHECK(!host_dispatcher_wrapper_.get());
 493   host_dispatcher_wrapper_.reset(host_dispatcher_wrapper);
 494 }
 495
 496 scoped_refptr<PluginModule>
 497 PluginModule::CreateModuleForExternalPluginInstance() {
 498   // Create a new module, but don't set the lifetime delegate. This isn't a
 499   // plugin in the usual sense, so it isn't tracked by the browser.
 500   scoped_refptr<PluginModule> external_plugin_module(
 501       new PluginModule(name_, version_, path_, permissions_));
 502   return external_plugin_module;
 503 }
 504
 505 PP_ExternalPluginResult PluginModule::InitAsProxiedExternalPlugin(
 506     PepperPluginInstanceImpl* instance) {
 507   DCHECK(host_dispatcher_wrapper_.get());
 508   // InitAsProxied (for the trusted/out-of-process case) initializes only the
 509   // module, and one or more instances are added later. In this case, the
 510   // PluginInstance was already created as in-process, so we missed the proxy
 511   // AddInstance step and must do it now.
 512   host_dispatcher_wrapper_->AddInstance(instance->pp_instance());
 513   // For external plugins, we need to tell the instance to reset itself as
 514   // proxied. This will clear cached interface pointers and send DidCreate (etc)
 515   // to the plugin side of the proxy.
 516   return instance->ResetAsProxied(this);
 517 }
 518
 519 bool PluginModule::IsProxied() const { return !!host_dispatcher_wrapper_; }
 520
 521 base::ProcessId PluginModule::GetPeerProcessId() {
 522   if (host_dispatcher_wrapper_)
 523     return host_dispatcher_wrapper_->peer_pid();
 524   return base::kNullProcessId;
 525 }
 526
 527 int PluginModule::GetPluginChildId() {
 528   if (host_dispatcher_wrapper_)
 529     return host_dispatcher_wrapper_->plugin_child_id();
 530   return 0;
 531 }
 532
 533 // static
 534 const PPB_Core* PluginModule::GetCore() { return &core_interface; }
 535
 536 // static
 537 bool PluginModule::SupportsInterface(const char* name) {
 538   return !!InternalGetInterface(name);
 539 }
 540
 541 PepperPluginInstanceImpl* PluginModule::CreateInstance(
 542     RenderFrameImpl* render_frame,
 543     blink::WebPluginContainer* container,
 544     const GURL& plugin_url) {
 545   PepperPluginInstanceImpl* instance = PepperPluginInstanceImpl::Create(
 546       render_frame, this, container, plugin_url);
 547   if (!instance) {
 548     LOG(WARNING) << "Plugin doesn't support instance interface, failing.";
 549     return NULL;
 550   }
 551   if (host_dispatcher_wrapper_)
 552     host_dispatcher_wrapper_->AddInstance(instance->pp_instance());
 553   return instance;
 554 }
 555
 556 PepperPluginInstanceImpl* PluginModule::GetSomeInstance() const {
 557   // This will generally crash later if there is not actually any instance to
 558   // return, so we force a crash now to make bugs easier to track down.
 559   CHECK(!instances_.empty());
 560   return *instances_.begin();
 561 }
 562
 563 const void* PluginModule::GetPluginInterface(const char* name) const {
 564   if (host_dispatcher_wrapper_)
 565     return host_dispatcher_wrapper_->GetProxiedInterface(name);
 566
 567   // In-process plugins.
 568   if (!entry_points_.get_interface)
 569     return NULL;
 570   return entry_points_.get_interface(name);
 571 }
 572
 573 void PluginModule::InstanceCreated(PepperPluginInstanceImpl* instance) {
 574   instances_.insert(instance);
 575 }
 576
 577 void PluginModule::InstanceDeleted(PepperPluginInstanceImpl* instance) {
 578   if (host_dispatcher_wrapper_)
 579     host_dispatcher_wrapper_->RemoveInstance(instance->pp_instance());
 580   instances_.erase(instance);
 581 }
 582
 583 scoped_refptr<ppapi::CallbackTracker> PluginModule::GetCallbackTracker() {
 584   return callback_tracker_;
 585 }
 586
 587 void PluginModule::PluginCrashed() {
 588   DCHECK(!is_crashed_);  // Should only get one notification.
 589   is_crashed_ = true;
 590
 591   // Notify all instances that they crashed.
 592   for (PluginInstanceSet::iterator i = instances_.begin();
 593        i != instances_.end();
 594        ++i)
 595     (*i)->InstanceCrashed();
 596
 597   PepperPluginRegistry::GetInstance()->PluginModuleDead(this);
 598 }
 599
 600 void PluginModule::SetReserveInstanceIDCallback(
 601     PP_Bool (*reserve)(PP_Module, PP_Instance)) {
 602   DCHECK(!reserve_instance_id_) << "Only expect one set.";
 603   reserve_instance_id_ = reserve;
 604 }
 605
 606 bool PluginModule::ReserveInstanceID(PP_Instance instance) {
 607   if (reserve_instance_id_)
 608     return PP_ToBool(reserve_instance_id_(pp_module_, instance));
 609   return true;  // Instance ID is usable.
 610 }
 611
 612 void PluginModule::SetBroker(PepperBroker* broker) {
 613   DCHECK(!broker_ || !broker);
 614   broker_ = broker;
 615 }
 616
 617 PepperBroker* PluginModule::GetBroker() { return broker_; }
 618
 619 RendererPpapiHostImpl* PluginModule::CreateOutOfProcessModule(
 620     RenderFrameImpl* render_frame,
 621     const base::FilePath& path,
 622     ppapi::PpapiPermissions permissions,
 623     const IPC::ChannelHandle& channel_handle,
 624     base::ProcessId peer_pid,
 625     int plugin_child_id,
 626     bool is_external) {
 627   scoped_refptr<PepperHungPluginFilter> hung_filter(new PepperHungPluginFilter(
 628       path, render_frame->GetRoutingID(), plugin_child_id));
 629   scoped_ptr<HostDispatcherWrapper> dispatcher(new HostDispatcherWrapper(
 630       this, peer_pid, plugin_child_id, permissions, is_external));
 631   if (!dispatcher->Init(channel_handle,
 632                         &GetInterface,
 633                         ppapi::Preferences(PpapiPreferencesBuilder::Build(
 634                             render_frame->render_view()->webkit_preferences())),
 635                         hung_filter.get()))
 636     return NULL;
 637
 638   RendererPpapiHostImpl* host_impl =
 639       RendererPpapiHostImpl::CreateOnModuleForOutOfProcess(
 640           this, dispatcher->dispatcher(), permissions);
 641   render_frame->PepperPluginCreated(host_impl);
 642
 643   InitAsProxied(dispatcher.release());
 644   return host_impl;
 645 }
 646
 647 // static
 648 void PluginModule::ResetHostGlobalsForTest() {
 649   delete host_globals;
 650   host_globals = NULL;
 651 }
 652
 653 bool PluginModule::InitializeModule(
 654     const PepperPluginInfo::EntryPoints& entry_points) {
 655   DCHECK(!host_dispatcher_wrapper_.get()) << "Don't call for proxied modules.";
 656   DCHECK(entry_points.initialize_module != NULL);
 657   int retval = entry_points.initialize_module(pp_module(), &GetInterface);
 658   if (retval != 0) {
 659 #if !defined(DISABLE_NACL)
 660     LOG(WARNING) << "PPP_InitializeModule returned failure " << retval;
 661 #endif  // !defined(DISABLE_NACL)
 662     return false;
 663   }
 664   return true;
 665 }
 666
 667 scoped_refptr<PluginModule> PluginModule::Create(
 668     RenderFrameImpl* render_frame,
 669     const WebPluginInfo& webplugin_info,
 670     bool* pepper_plugin_was_registered) {
 671   *pepper_plugin_was_registered = true;
 672
 673   // See if a module has already been loaded for this plugin.
 674   base::FilePath path(webplugin_info.path);
 675   scoped_refptr<PluginModule> module =
 676       PepperPluginRegistry::GetInstance()->GetLiveModule(path);
 677   if (module.get()) {
 678     if (!module->renderer_ppapi_host()) {
 679       // If the module exists and no embedder state was associated with it,
 680       // then the module was one of the ones preloaded and is an in-process
 681       // plugin. We need to associate our host state with it.
 682       CreateHostForInProcessModule(render_frame, module.get(), webplugin_info);
 683     }
 684     return module;
 685   }
 686
 687   // In-process plugins will have always been created up-front to avoid the
 688   // sandbox restrictions. So getting here implies it doesn't exist or should
 689   // be out of process.
 690   const PepperPluginInfo* info =
 691       PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info);
 692   if (!info) {
 693     *pepper_plugin_was_registered = false;
 694     return scoped_refptr<PluginModule>();
 695   } else if (!info->is_out_of_process) {
 696     // In-process plugin not preloaded, it probably couldn't be initialized.
 697     return scoped_refptr<PluginModule>();
 698   }
 699
 700   // Out of process: have the browser start the plugin process for us.
 701   IPC::ChannelHandle channel_handle;
 702   base::ProcessId peer_pid = 0;
 703   int plugin_child_id = 0;
 704   render_frame->Send(new ViewHostMsg_OpenChannelToPepperPlugin(
 705       path, &channel_handle, &peer_pid, &plugin_child_id));
 706   if (channel_handle.name.empty()) {
 707     // Couldn't be initialized.
 708     return scoped_refptr<PluginModule>();
 709   }
 710
 711   ppapi::PpapiPermissions permissions(info->permissions);
 712
 713   // AddLiveModule must be called before any early returns since the
 714   // module's destructor will remove itself.
 715   module = new PluginModule(info->name, info->version, path, permissions);
 716   PepperPluginRegistry::GetInstance()->AddLiveModule(path, module.get());
 717
 718   if (!module->CreateOutOfProcessModule(render_frame,
 719                                         path,
 720                                         permissions,
 721                                         channel_handle,
 722                                         peer_pid,
 723                                         plugin_child_id,
 724                                         false))  // is_external = false
 725     return scoped_refptr<PluginModule>();
 726
 727   return module;
 728 }
 729
 730 }  // namespace content