// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/342213636): Remove this and spanify to fix the errors.
#pragma allow_unsafe_buffers
#endif
#include "content/renderer/pepper/plugin_module.h"
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <memory>
#include <set>
#include <utility>
#include "base/command_line.h"
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/no_destructor.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_runner.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "components/nacl/common/buildflags.h"
#include "content/public/common/content_plugin_info.h"
#include "content/public/renderer/content_renderer_client.h"
#include "content/renderer/pepper/host_dispatcher_wrapper.h"
#include "content/renderer/pepper/host_globals.h"
#include "content/renderer/pepper/pepper_browser_connection.h"
#include "content/renderer/pepper/pepper_hung_plugin_filter.h"
#include "content/renderer/pepper/pepper_plugin_instance_impl.h"
#include "content/renderer/pepper/pepper_plugin_registry.h"
#include "content/renderer/pepper/ppapi_preferences_builder.h"
#include "content/renderer/pepper/ppb_image_data_impl.h"
#include "content/renderer/pepper/ppb_proxy_impl.h"
#include "content/renderer/pepper/ppb_var_deprecated_impl.h"
#include "content/renderer/pepper/renderer_ppapi_host_impl.h"
#include "content/renderer/render_frame_impl.h"
#include "content/renderer/render_thread_impl.h"
#include "ppapi/c/dev/ppb_audio_input_dev.h"
#include "ppapi/c/dev/ppb_audio_output_dev.h"
#include "ppapi/c/dev/ppb_buffer_dev.h"
#include "ppapi/c/dev/ppb_char_set_dev.h"
#include "ppapi/c/dev/ppb_crypto_dev.h"
#include "ppapi/c/dev/ppb_cursor_control_dev.h"
#include "ppapi/c/dev/ppb_device_ref_dev.h"
#include "ppapi/c/dev/ppb_file_chooser_dev.h"
#include "ppapi/c/dev/ppb_gles_chromium_texture_mapping_dev.h"
#include "ppapi/c/dev/ppb_memory_dev.h"
#include "ppapi/c/dev/ppb_opengles2ext_dev.h"
#include "ppapi/c/dev/ppb_printing_dev.h"
#include "ppapi/c/dev/ppb_text_input_dev.h"
#include "ppapi/c/dev/ppb_trace_event_dev.h"
#include "ppapi/c/dev/ppb_url_util_dev.h"
#include "ppapi/c/dev/ppb_var_deprecated.h"
#include "ppapi/c/dev/ppb_video_capture_dev.h"
#include "ppapi/c/dev/ppb_video_decoder_dev.h"
#include "ppapi/c/dev/ppb_view_dev.h"
#include "ppapi/c/pp_module.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/pp_var.h"
#include "ppapi/c/ppb_audio.h"
#include "ppapi/c/ppb_audio_buffer.h"
#include "ppapi/c/ppb_audio_config.h"
#include "ppapi/c/ppb_console.h"
#include "ppapi/c/ppb_core.h"
#include "ppapi/c/ppb_file_io.h"
#include "ppapi/c/ppb_file_ref.h"
#include "ppapi/c/ppb_file_system.h"
#include "ppapi/c/ppb_fullscreen.h"
#include "ppapi/c/ppb_graphics_2d.h"
#include "ppapi/c/ppb_graphics_3d.h"
#include "ppapi/c/ppb_host_resolver.h"
#include "ppapi/c/ppb_image_data.h"
#include "ppapi/c/ppb_instance.h"
#include "ppapi/c/ppb_media_stream_audio_track.h"
#include "ppapi/c/ppb_media_stream_video_track.h"
#include "ppapi/c/ppb_messaging.h"
#include "ppapi/c/ppb_mouse_cursor.h"
#include "ppapi/c/ppb_mouse_lock.h"
#include "ppapi/c/ppb_net_address.h"
#include "ppapi/c/ppb_network_list.h"
#include "ppapi/c/ppb_network_monitor.h"
#include "ppapi/c/ppb_network_proxy.h"
#include "ppapi/c/ppb_opengles2.h"
#include "ppapi/c/ppb_tcp_socket.h"
#include "ppapi/c/ppb_text_input_controller.h"
#include "ppapi/c/ppb_udp_socket.h"
#include "ppapi/c/ppb_url_loader.h"
#include "ppapi/c/ppb_url_request_info.h"
#include "ppapi/c/ppb_url_response_info.h"
#include "ppapi/c/ppb_var.h"
#include "ppapi/c/ppb_var_array.h"
#include "ppapi/c/ppb_var_array_buffer.h"
#include "ppapi/c/ppb_var_dictionary.h"
#include "ppapi/c/ppb_video_decoder.h"
#include "ppapi/c/ppb_video_encoder.h"
#include "ppapi/c/ppb_video_frame.h"
#include "ppapi/c/ppb_view.h"
#include "ppapi/c/ppb_vpn_provider.h"
#include "ppapi/c/ppp.h"
#include "ppapi/c/ppp_instance.h"
#include "ppapi/c/private/ppb_camera_capabilities_private.h"
#include "ppapi/c/private/ppb_camera_device_private.h"
#include "ppapi/c/private/ppb_ext_crx_file_system_private.h"
#include "ppapi/c/private/ppb_file_io_private.h"
#include "ppapi/c/private/ppb_file_ref_private.h"
#include "ppapi/c/private/ppb_host_resolver_private.h"
#include "ppapi/c/private/ppb_instance_private.h"
#include "ppapi/c/private/ppb_isolated_file_system_private.h"
#include "ppapi/c/private/ppb_proxy_private.h"
#include "ppapi/c/private/ppb_tcp_server_socket_private.h"
#include "ppapi/c/private/ppb_tcp_socket_private.h"
#include "ppapi/c/private/ppb_testing_private.h"
#include "ppapi/c/private/ppb_udp_socket_private.h"
#include "ppapi/c/private/ppb_uma_private.h"
#include "ppapi/c/private/ppb_x509_certificate_private.h"
#include "ppapi/c/trusted/ppb_browser_font_trusted.h"
#include "ppapi/c/trusted/ppb_char_set_trusted.h"
#include "ppapi/c/trusted/ppb_file_chooser_trusted.h"
#include "ppapi/c/trusted/ppb_url_loader_trusted.h"
#include "ppapi/shared_impl/callback_tracker.h"
#include "ppapi/shared_impl/dictionary_var.h"
#include "ppapi/shared_impl/ppapi_preferences.h"
#include "ppapi/shared_impl/ppapi_switches.h"
#include "ppapi/shared_impl/ppb_input_event_shared.h"
#include "ppapi/shared_impl/ppb_opengles2_shared.h"
#include "ppapi/shared_impl/ppb_var_shared.h"
#include "ppapi/shared_impl/time_conversion.h"
#include "ppapi/thunk/enter.h"
#include "ppapi/thunk/ppb_graphics_2d_api.h"
#include "ppapi/thunk/thunk.h"
#include "third_party/blink/public/platform/web_security_origin.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "third_party/blink/public/web/web_view.h"
using ppapi::InputEventData;
using ppapi::PpapiGlobals;
using ppapi::TimeTicksToPPTimeTicks;
using ppapi::TimeToPPTime;
using ppapi::thunk::EnterResource;
using ppapi::thunk::PPB_Graphics2D_API;
using ppapi::thunk::PPB_InputEvent_API;
namespace content {
namespace {
// Global tracking info for PPAPI plugins. This is lazily created before the
// first plugin is allocated, and leaked on shutdown.
//
// Note that we don't want a Singleton here since destroying this object will
// try to free some stuff that requires WebKit, and Singletons are destroyed
// after WebKit.
// TODO(raymes): I'm not sure if it is completely necessary to leak the
// HostGlobals. Figure out the shutdown sequence and find a way to do this
// more elegantly.
HostGlobals* host_globals = nullptr;
// Maintains all currently loaded plugin libs for validating PP_Module
// identifiers.
typedef std::set<PluginModule*> PluginModuleSet;
PluginModuleSet* GetLivePluginSet() {
static base::NoDestructor<PluginModuleSet> live_plugin_libs;
return live_plugin_libs.get();
}
// PPB_Core --------------------------------------------------------------------
void AddRefResource(PP_Resource resource) {
PpapiGlobals::Get()->GetResourceTracker()->AddRefResource(resource);
}
void ReleaseResource(PP_Resource resource) {
PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(resource);
}
PP_Time GetTime() { return TimeToPPTime(base::Time::Now()); }
PP_TimeTicks GetTickTime() {
return TimeTicksToPPTimeTicks(base::TimeTicks::Now());
}
void CallOnMainThread(int delay_in_msec,
PP_CompletionCallback callback,
int32_t result) {
if (callback.func) {
PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostDelayedTask(
FROM_HERE, base::BindOnce(callback.func, callback.user_data, result),
base::Milliseconds(delay_in_msec));
}
}
PP_Bool IsMainThread() {
return PP_FromBool(PpapiGlobals::Get()
->GetMainThreadMessageLoop()
->BelongsToCurrentThread());
}
const PPB_Core core_interface = {&AddRefResource, &ReleaseResource,
&GetTime, &GetTickTime,
&CallOnMainThread, &IsMainThread};
// PPB_Testing -----------------------------------------------------------------
PP_Bool ReadImageData(PP_Resource device_context_2d,
PP_Resource image,
const PP_Point* top_left) {
EnterResource<PPB_Graphics2D_API> enter(device_context_2d, true);
if (enter.failed())
return PP_FALSE;
return PP_FromBool(enter.object()->ReadImageData(image, top_left));
}
void RunMessageLoop(PP_Instance instance) {
HostGlobals::Get()->RunMsgLoop();
}
void QuitMessageLoop(PP_Instance instance) {
HostGlobals::Get()->QuitMsgLoop();
}
uint32_t GetLiveObjectsForInstance(PP_Instance instance_id) {
return HostGlobals::Get()->GetResourceTracker()->GetLiveObjectsForInstance(
instance_id);
}
PP_Bool IsOutOfProcess() { return PP_FALSE; }
void SimulateInputEvent(PP_Instance instance, PP_Resource input_event) {
PepperPluginInstanceImpl* plugin_instance =
host_globals->GetInstance(instance);
if (!plugin_instance)
return;
EnterResource<PPB_InputEvent_API> enter(input_event, false);
if (enter.failed())
return;
const InputEventData& input_event_data = enter.object()->GetInputEventData();
plugin_instance->SimulateInputEvent(input_event_data);
}
PP_Var GetDocumentURL(PP_Instance instance, PP_URLComponents_Dev* components) {
PepperPluginInstanceImpl* plugin_instance =
host_globals->GetInstance(instance);
if (!plugin_instance)
return PP_MakeUndefined();
return plugin_instance->GetDocumentURL(instance, components);
}
uint32_t GetLiveVars(PP_Var live_vars[], uint32_t array_size) {
std::vector<PP_Var> vars =
PpapiGlobals::Get()->GetVarTracker()->GetLiveVars();
for (size_t i = 0u;
i < std::min(static_cast<size_t>(array_size), vars.size());
++i)
live_vars[i] = vars[i];
return vars.size();
}
void SetMinimumArrayBufferSizeForShmem(PP_Instance /*instance*/,
uint32_t /*threshold*/) {
// Does nothing. Not needed in-process.
}
void RunV8GC(PP_Instance pp_instance) {
PepperPluginInstanceImpl* instance =
content::PepperPluginInstanceImpl::GetForTesting(pp_instance);
instance->GetIsolate()->RequestGarbageCollectionForTesting(
v8::Isolate::kFullGarbageCollection);
}
const PPB_Testing_Private testing_interface = {
&ReadImageData,
&RunMessageLoop,
&QuitMessageLoop,
&GetLiveObjectsForInstance,
&IsOutOfProcess,
&SimulateInputEvent,
&GetDocumentURL,
&GetLiveVars,
&SetMinimumArrayBufferSizeForShmem,
&RunV8GC};
// GetInterface ----------------------------------------------------------------
const void* InternalGetInterface(const char* name) {
// TODO(brettw) put these in a hash map for better performance.
#define PROXIED_IFACE(iface_str, iface_struct) \
if (strcmp(name, iface_str) == 0) \
return ppapi::thunk::Get##iface_struct##_Thunk();
#include "ppapi/thunk/interfaces_ppb_private.h"
#include "ppapi/thunk/interfaces_ppb_private_no_permissions.h"
#include "ppapi/thunk/interfaces_ppb_public_dev.h"
#include "ppapi/thunk/interfaces_ppb_public_dev_channel.h"
#include "ppapi/thunk/interfaces_ppb_public_socket.h"
#include "ppapi/thunk/interfaces_ppb_public_stable.h"
#undef PROXIED_IFACE
#define LEGACY_IFACE(iface_str, function_name) \
if (strcmp(name, iface_str) == 0) \
return function_name;
#include "ppapi/thunk/interfaces_legacy.h"
#undef LEGACY_IFACE
// Only support the testing interface when the command line switch is
// specified. This allows us to prevent people from (ab)using this interface
// in production code.
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnablePepperTesting)) {
if (strcmp(name, PPB_TESTING_PRIVATE_INTERFACE) == 0)
return &testing_interface;
}
return nullptr;
}
const void* GetInterface(const char* name) {
// All interfaces should be used on the main thread.
CHECK(IsMainThread());
return InternalGetInterface(name);
}
// Gets the PPAPI entry points from the given library and places them into the
// given structure. Returns true on success.
bool LoadEntryPointsFromLibrary(const base::NativeLibrary& library,
ContentPluginInfo::EntryPoints* entry_points) {
entry_points->get_interface =
reinterpret_cast<ContentPluginInfo::GetInterfaceFunc>(
base::GetFunctionPointerFromNativeLibrary(library,
"PPP_GetInterface"));
if (!entry_points->get_interface) {
LOG(WARNING) << "No PPP_GetInterface in plugin library";
return false;
}
entry_points->initialize_module =
reinterpret_cast<ContentPluginInfo::PPP_InitializeModuleFunc>(
base::GetFunctionPointerFromNativeLibrary(library,
"PPP_InitializeModule"));
if (!entry_points->initialize_module) {
LOG(WARNING) << "No PPP_InitializeModule in plugin library";
return false;
}
// It's okay for PPP_ShutdownModule to not be defined and shutdown_module to
// be NULL.
entry_points->shutdown_module =
reinterpret_cast<ContentPluginInfo::PPP_ShutdownModuleFunc>(
base::GetFunctionPointerFromNativeLibrary(library,
"PPP_ShutdownModule"));
return true;
}
void CreateHostForInProcessModule(RenderFrameImpl* render_frame,
PluginModule* module,
const WebPluginInfo& webplugin_info) {
// First time an in-process plugin was used, make a host for it.
const ContentPluginInfo* info =
PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info);
DCHECK(!info->is_out_of_process);
ppapi::PpapiPermissions perms(PepperPluginRegistry::GetInstance()
->GetInfoForPlugin(webplugin_info)
->permissions);
RendererPpapiHostImpl* host_impl =
RendererPpapiHostImpl::CreateOnModuleForInProcess(module, perms);
render_frame->PepperPluginCreated(host_impl);
}
} // namespace
// PluginModule ----------------------------------------------------------------
PluginModule::PluginModule(const std::string& name,
const std::string& version,
const base::FilePath& path,
const ppapi::PpapiPermissions& perms)
: callback_tracker_(new ppapi::CallbackTracker),
is_in_destructor_(false),
is_crashed_(false),
library_(nullptr),
name_(name),
version_(version),
path_(path),
permissions_(ppapi::PpapiPermissions::GetForCommandLine(perms.GetBits())),
reserve_instance_id_(nullptr) {
// Ensure the globals object is created.
if (!host_globals)
host_globals = new HostGlobals;
memset(&entry_points_, 0, sizeof(entry_points_));
pp_module_ = HostGlobals::Get()->AddModule(this);
GetLivePluginSet()->insert(this);
}
PluginModule::~PluginModule() {
// In the past there have been crashes reentering the plugin module
// destructor. Catch if that happens again earlier.
CHECK(!is_in_destructor_);
is_in_destructor_ = true;
// When the module is being deleted, there should be no more instances still
// holding a reference to us.
DCHECK(instances_.empty());
// Some resources and other stuff are hung off of the embedder state, which
// should be torn down before the routing stuff below.
renderer_ppapi_host_.reset();
GetLivePluginSet()->erase(this);
callback_tracker_->AbortAll();
if (entry_points_.shutdown_module)
entry_points_.shutdown_module();
if (library_)
base::UnloadNativeLibrary(library_);
// Notifications that we've been deleted should be last.
HostGlobals::Get()->ModuleDeleted(pp_module_);
if (!is_crashed_) {
// When the plugin crashes, we immediately tell the lifetime delegate that
// we're gone, so we don't want to tell it again.
PepperPluginRegistry::GetInstance()->PluginModuleDead(this);
}
// Don't add stuff here, the two notifications that the module object has
// been deleted should be last. This allows, for example,
// PPB_Proxy.IsInModuleDestructor to map PP_Module to this class during the
// previous parts of the destructor.
}
void PluginModule::SetRendererPpapiHost(
std::unique_ptr<RendererPpapiHostImpl> host) {
renderer_ppapi_host_ = std::move(host);
}
bool PluginModule::InitAsInternalPlugin(
const ContentPluginInfo::EntryPoints& entry_points) {
if (InitializeModule(entry_points)) {
entry_points_ = entry_points;
return true;
}
return false;
}
bool PluginModule::InitAsLibrary(const base::FilePath& path) {
base::NativeLibrary library = base::LoadNativeLibrary(path, nullptr);
if (!library)
return false;
ContentPluginInfo::EntryPoints entry_points;
if (!LoadEntryPointsFromLibrary(library, &entry_points) ||
!InitializeModule(entry_points)) {
base::UnloadNativeLibrary(library);
return false;
}
entry_points_ = entry_points;
library_ = library;
return true;
}
void PluginModule::InitAsProxied(
HostDispatcherWrapper* host_dispatcher_wrapper) {
DCHECK(!host_dispatcher_wrapper_.get());
host_dispatcher_wrapper_.reset(host_dispatcher_wrapper);
}
scoped_refptr<PluginModule>
PluginModule::CreateModuleForExternalPluginInstance() {
// Create a new module, but don't set the lifetime delegate. This isn't a
// plugin in the usual sense, so it isn't tracked by the browser.
scoped_refptr<PluginModule> external_plugin_module(
new PluginModule(name_, version_, path_, permissions_));
return external_plugin_module;
}
PP_ExternalPluginResult PluginModule::InitAsProxiedExternalPlugin(
PepperPluginInstanceImpl* instance) {
DCHECK(host_dispatcher_wrapper_.get());
// InitAsProxied (for the trusted/out-of-process case) initializes only the
// module, and one or more instances are added later. In this case, the
// PluginInstance was already created as in-process, so we missed the proxy
// AddInstance step and must do it now.
host_dispatcher_wrapper_->AddInstance(instance->pp_instance());
// For external plugins, we need to tell the instance to reset itself as
// proxied. This will clear cached interface pointers and send DidCreate (etc)
// to the plugin side of the proxy.
return instance->ResetAsProxied(this);
}
bool PluginModule::IsProxied() const { return !!host_dispatcher_wrapper_; }
base::ProcessId PluginModule::GetPeerProcessId() {
if (host_dispatcher_wrapper_)
return host_dispatcher_wrapper_->peer_pid();
return base::kNullProcessId;
}
int PluginModule::GetPluginChildId() {
if (host_dispatcher_wrapper_)
return host_dispatcher_wrapper_->plugin_child_id();
return 0;
}
// static
const PPB_Core* PluginModule::GetCore() { return &core_interface; }
// static
bool PluginModule::SupportsInterface(const char* name) {
return !!InternalGetInterface(name);
}
PepperPluginInstanceImpl* PluginModule::CreateInstance(
RenderFrameImpl* render_frame,
blink::WebPluginContainer* container,
const GURL& plugin_url) {
PepperPluginInstanceImpl* instance = PepperPluginInstanceImpl::Create(
render_frame, this, container, plugin_url,
render_frame->GetWebFrame()->GetAgentGroupScheduler()->Isolate());
if (!instance) {
LOG(WARNING) << "Plugin doesn't support instance interface, failing.";
return nullptr;
}
if (host_dispatcher_wrapper_)
host_dispatcher_wrapper_->AddInstance(instance->pp_instance());
return instance;
}
PepperPluginInstanceImpl* PluginModule::GetSomeInstance() const {
// This will generally crash later if there is not actually any instance to
// return, so we force a crash now to make bugs easier to track down.
CHECK(!instances_.empty());
return *instances_.begin();
}
const void* PluginModule::GetPluginInterface(const char* name) const {
if (host_dispatcher_wrapper_)
return host_dispatcher_wrapper_->GetProxiedInterface(name);
// In-process plugins.
if (!entry_points_.get_interface)
return nullptr;
return entry_points_.get_interface(name);
}
void PluginModule::InstanceCreated(PepperPluginInstanceImpl* instance) {
instances_.insert(instance);
}
void PluginModule::InstanceDeleted(PepperPluginInstanceImpl* instance) {
if (host_dispatcher_wrapper_)
host_dispatcher_wrapper_->RemoveInstance(instance->pp_instance());
instances_.erase(instance);
}
scoped_refptr<ppapi::CallbackTracker> PluginModule::GetCallbackTracker() {
return callback_tracker_;
}
void PluginModule::PluginCrashed() {
DCHECK(!is_crashed_); // Should only get one notification.
is_crashed_ = true;
// Notify all instances that they crashed.
for (auto i = instances_.begin(); i != instances_.end(); ++i)
(*i)->InstanceCrashed();
PepperPluginRegistry::GetInstance()->PluginModuleDead(this);
}
void PluginModule::SetReserveInstanceIDCallback(
PP_Bool (*reserve)(PP_Module, PP_Instance)) {
DCHECK(!reserve_instance_id_) << "Only expect one set.";
reserve_instance_id_ = reserve;
}
bool PluginModule::ReserveInstanceID(PP_Instance instance) {
if (reserve_instance_id_)
return PP_ToBool(reserve_instance_id_(pp_module_, instance));
return true; // Instance ID is usable.
}
RendererPpapiHostImpl* PluginModule::CreateOutOfProcessModule(
RenderFrameImpl* render_frame,
const base::FilePath& path,
ppapi::PpapiPermissions permissions,
const IPC::ChannelHandle& channel_handle,
base::ProcessId peer_pid,
int plugin_child_id,
bool is_external,
scoped_refptr<base::SingleThreadTaskRunner> task_runner) {
mojo::PendingRemote<mojom::PepperHungDetectorHost> hung_host;
render_frame->GetPepperHost()->BindHungDetectorHost(
hung_host.InitWithNewPipeAndPassReceiver(), plugin_child_id, path);
scoped_refptr<PepperHungPluginFilter> hung_filter(
new PepperHungPluginFilter());
hung_filter->BindHungDetectorHost(std::move(hung_host));
std::unique_ptr<HostDispatcherWrapper> dispatcher(new HostDispatcherWrapper(
this, peer_pid, plugin_child_id, permissions, is_external));
RenderThreadImpl* render_thread = RenderThreadImpl::current();
if (!render_thread)
return nullptr;
scoped_refptr<gpu::GpuChannelHost> channel =
render_thread->EstablishGpuChannelSync();
// If no channel is established, feature statuses are unknown and disabled.
const gpu::GpuFeatureInfo default_gpu_feature_info;
const gpu::GpuFeatureInfo& gpu_feature_info =
channel ? channel->gpu_feature_info() : default_gpu_feature_info;
if (!dispatcher->Init(
channel_handle, &GetInterface,
ppapi::Preferences(PpapiPreferencesBuilder::Build(
render_frame->GetWebFrame()->View()->GetWebPreferences(),
gpu_feature_info)),
hung_filter.get(), task_runner)) {
return nullptr;
}
RendererPpapiHostImpl* host_impl =
RendererPpapiHostImpl::CreateOnModuleForOutOfProcess(
this, dispatcher->dispatcher(), permissions);
render_frame->PepperPluginCreated(host_impl);
InitAsProxied(dispatcher.release());
return host_impl;
}
// static
void PluginModule::ResetHostGlobalsForTest() {
delete host_globals;
host_globals = nullptr;
}
bool PluginModule::InitializeModule(
const ContentPluginInfo::EntryPoints& entry_points) {
DCHECK(!host_dispatcher_wrapper_.get()) << "Don't call for proxied modules.";
DCHECK(entry_points.initialize_module != nullptr);
int retval = entry_points.initialize_module(pp_module(), &GetInterface);
if (retval != 0) {
#if BUILDFLAG(ENABLE_NACL)
LOG(WARNING) << "PPP_InitializeModule returned failure " << retval;
#endif // BUILDFLAG(ENABLE_NACL)
return false;
}
return true;
}
scoped_refptr<PluginModule> PluginModule::Create(
RenderFrameImpl* render_frame,
const WebPluginInfo& webplugin_info,
const std::optional<url::Origin>& origin_lock,
bool* pepper_plugin_was_registered,
scoped_refptr<base::SingleThreadTaskRunner> task_runner) {
*pepper_plugin_was_registered = true;
// See if a module has already been loaded for this plugin.
base::FilePath path(webplugin_info.path);
scoped_refptr<PluginModule> module =
PepperPluginRegistry::GetInstance()->GetLiveModule(path, origin_lock);
if (module.get()) {
if (!module->renderer_ppapi_host()) {
// If the module exists and no embedder state was associated with it,
// then the module was one of the ones preloaded and is an in-process
// plugin. We need to associate our host state with it.
CreateHostForInProcessModule(render_frame, module.get(), webplugin_info);
}
return module;
}
// In-process plugins will have always been created up-front to avoid the
// sandbox restrictions. So getting here implies it doesn't exist or should
// be out of process.
const ContentPluginInfo* info =
PepperPluginRegistry::GetInstance()->GetInfoForPlugin(webplugin_info);
if (!info) {
*pepper_plugin_was_registered = false;
return scoped_refptr<PluginModule>();
} else if (!info->is_out_of_process) {
// In-process plugin not preloaded, it probably couldn't be initialized.
return scoped_refptr<PluginModule>();
}
// Out of process: have the browser start the plugin process for us.
mojo::ScopedMessagePipeHandle channel_handle;
base::ProcessId peer_pid = 0;
int plugin_child_id = 0;
auto* browser_connection = PepperBrowserConnection::Get(render_frame);
mojom::PepperHost* host = browser_connection->GetHost();
host->OpenChannelToPepperPlugin(
render_frame->GetWebFrame()->GetSecurityOrigin(), path, origin_lock,
&channel_handle, &peer_pid, &plugin_child_id);
if (!channel_handle.is_valid()) {
// Couldn't be initialized.
return scoped_refptr<PluginModule>();
}
ppapi::PpapiPermissions permissions(info->permissions);
// AddLiveModule must be called before any early returns since the
// module's destructor will remove itself.
module = new PluginModule(info->name, info->version, path, permissions);
PepperPluginRegistry::GetInstance()->AddLiveModule(path, origin_lock,
module.get());
if (!module->CreateOutOfProcessModule(render_frame, path, permissions,
channel_handle.release(), peer_pid,
plugin_child_id, false,
task_runner)) // is_external = false
return scoped_refptr<PluginModule>();
return module;
}
} // namespace content
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