src/content/renderer/pepper/content_renderer_pepper_host_factory.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/content_renderer_pepper_host_factory.h"
   6
   7 #include "base/logging.h"
   8 #include "base/strings/string_util.h"
   9 #include "content/public/common/content_client.h"
  10 #include "content/public/renderer/content_renderer_client.h"
  11 #include "content/renderer/pepper/pepper_audio_input_host.h"
  12 #include "content/renderer/pepper/pepper_file_chooser_host.h"
  13 #include "content/renderer/pepper/pepper_file_ref_renderer_host.h"
  14 #include "content/renderer/pepper/pepper_file_system_host.h"
  15 #include "content/renderer/pepper/pepper_graphics_2d_host.h"
  16 #include "content/renderer/pepper/pepper_media_stream_video_track_host.h"
  17 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
  18 #include "content/renderer/pepper/pepper_truetype_font_host.h"
  19 #include "content/renderer/pepper/pepper_url_loader_host.h"
  20 #include "content/renderer/pepper/pepper_video_capture_host.h"
  21 #include "content/renderer/pepper/pepper_video_destination_host.h"
  22 #include "content/renderer/pepper/pepper_video_source_host.h"
  23 #include "content/renderer/pepper/pepper_websocket_host.h"
  24 #include "content/renderer/pepper/ppb_image_data_impl.h"
  25 #include "content/renderer/pepper/renderer_ppapi_host_impl.h"
  26 #include "ppapi/host/resource_host.h"
  27 #include "ppapi/proxy/ppapi_message_utils.h"
  28 #include "ppapi/proxy/ppapi_messages.h"
  29 #include "ppapi/proxy/serialized_structs.h"
  30 #include "ppapi/shared_impl/ppb_image_data_shared.h"
  31 #include "third_party/WebKit/public/platform/WebURL.h"
  32 #include "third_party/WebKit/public/web/WebDocument.h"
  33 #include "third_party/WebKit/public/web/WebElement.h"
  34 #include "third_party/WebKit/public/web/WebPluginContainer.h"
  35
  36 using ppapi::host::ResourceHost;
  37 using ppapi::proxy::SerializedTrueTypeFontDesc;
  38 using ppapi::UnpackMessage;
  39
  40 namespace content {
  41
  42 #if defined(ENABLE_WEBRTC)
  43 namespace {
  44
  45 bool CanUseMediaStreamAPI(const RendererPpapiHost* host, PP_Instance instance) {
  46   blink::WebPluginContainer* container =
  47       host->GetContainerForInstance(instance);
  48   if (!container)
  49     return false;
  50
  51   GURL document_url = container->element().document().url();
  52   ContentRendererClient* content_renderer_client =
  53       GetContentClient()->renderer();
  54   return content_renderer_client->AllowPepperMediaStreamAPI(document_url);
  55 }
  56
  57 }  // namespace
  58 #endif  // defined(ENABLE_WEBRTC)
  59
  60 ContentRendererPepperHostFactory::ContentRendererPepperHostFactory(
  61     RendererPpapiHostImpl* host)
  62     : host_(host) {}
  63
  64 ContentRendererPepperHostFactory::~ContentRendererPepperHostFactory() {}
  65
  66 scoped_ptr<ResourceHost> ContentRendererPepperHostFactory::CreateResourceHost(
  67     ppapi::host::PpapiHost* host,
  68     const ppapi::proxy::ResourceMessageCallParams& params,
  69     PP_Instance instance,
  70     const IPC::Message& message) {
  71   DCHECK(host == host_->GetPpapiHost());
  72
  73   // Make sure the plugin is giving us a valid instance for this resource.
  74   if (!host_->IsValidInstance(instance))
  75     return scoped_ptr<ResourceHost>();
  76
  77   PepperPluginInstanceImpl* instance_impl =
  78       host_->GetPluginInstanceImpl(instance);
  79   if (!instance_impl->render_frame())
  80     return scoped_ptr<ResourceHost>();
  81
  82   // Public interfaces.
  83   switch (message.type()) {
  84     case PpapiHostMsg_FileRef_CreateForFileAPI::ID: {
  85       PP_Resource file_system;
  86       std::string internal_path;
  87       if (!UnpackMessage<PpapiHostMsg_FileRef_CreateForFileAPI>(
  88               message, &file_system, &internal_path)) {
  89         NOTREACHED();
  90         return scoped_ptr<ResourceHost>();
  91       }
  92       return scoped_ptr<ResourceHost>(new PepperFileRefRendererHost(
  93           host_, instance, params.pp_resource(), file_system, internal_path));
  94     }
  95     case PpapiHostMsg_FileSystem_Create::ID: {
  96       PP_FileSystemType file_system_type;
  97       if (!UnpackMessage<PpapiHostMsg_FileSystem_Create>(message,
  98                                                          &file_system_type)) {
  99         NOTREACHED();
 100         return scoped_ptr<ResourceHost>();
 101       }
 102       return scoped_ptr<ResourceHost>(new PepperFileSystemHost(
 103           host_, instance, params.pp_resource(), file_system_type));
 104     }
 105     case PpapiHostMsg_Graphics2D_Create::ID: {
 106       PP_Size size;
 107       PP_Bool is_always_opaque;
 108       if (!UnpackMessage<PpapiHostMsg_Graphics2D_Create>(
 109               message, &size, &is_always_opaque)) {
 110         NOTREACHED();
 111         return scoped_ptr<ResourceHost>();
 112       }
 113       scoped_refptr<PPB_ImageData_Impl> image_data(new PPB_ImageData_Impl(
 114           instance, ppapi::PPB_ImageData_Shared::PLATFORM));
 115       return scoped_ptr<ResourceHost>(
 116           PepperGraphics2DHost::Create(host_,
 117                                        instance,
 118                                        params.pp_resource(),
 119                                        size,
 120                                        is_always_opaque,
 121                                        image_data));
 122     }
 123     case PpapiHostMsg_URLLoader_Create::ID:
 124       return scoped_ptr<ResourceHost>(new PepperURLLoaderHost(
 125           host_, false, instance, params.pp_resource()));
 126     case PpapiHostMsg_WebSocket_Create::ID:
 127       return scoped_ptr<ResourceHost>(
 128           new PepperWebSocketHost(host_, instance, params.pp_resource()));
 129 #if defined(ENABLE_WEBRTC)
 130     case PpapiHostMsg_MediaStreamVideoTrack_Create::ID:
 131       return scoped_ptr<ResourceHost>(new PepperMediaStreamVideoTrackHost(
 132           host_, instance, params.pp_resource()));
 133     // These private MediaStream interfaces are exposed as if they were public
 134     // so they can be used by NaCl plugins. However, they are available only
 135     // for whitelisted apps.
 136     case PpapiHostMsg_VideoDestination_Create::ID:
 137       if (CanUseMediaStreamAPI(host_, instance))
 138         return scoped_ptr<ResourceHost>(new PepperVideoDestinationHost(
 139             host_, instance, params.pp_resource()));
 140     case PpapiHostMsg_VideoSource_Create::ID:
 141       if (CanUseMediaStreamAPI(host_, instance))
 142         return scoped_ptr<ResourceHost>(
 143             new PepperVideoSourceHost(host_, instance, params.pp_resource()));
 144 #endif  // defined(ENABLE_WEBRTC)
 145   }
 146
 147   // Dev interfaces.
 148   if (GetPermissions().HasPermission(ppapi::PERMISSION_DEV)) {
 149     switch (message.type()) {
 150       case PpapiHostMsg_AudioInput_Create::ID:
 151         return scoped_ptr<ResourceHost>(
 152             new PepperAudioInputHost(host_, instance, params.pp_resource()));
 153       case PpapiHostMsg_FileChooser_Create::ID:
 154         return scoped_ptr<ResourceHost>(
 155             new PepperFileChooserHost(host_, instance, params.pp_resource()));
 156       case PpapiHostMsg_TrueTypeFont_Create::ID: {
 157         SerializedTrueTypeFontDesc desc;
 158         if (!UnpackMessage<PpapiHostMsg_TrueTypeFont_Create>(message, &desc)) {
 159           NOTREACHED();
 160           return scoped_ptr<ResourceHost>();
 161         }
 162         // Check that the family name is valid UTF-8 before passing it to the
 163         // host OS.
 164         if (base::IsStringUTF8(desc.family)) {
 165           return scoped_ptr<ResourceHost>(new PepperTrueTypeFontHost(
 166               host_, instance, params.pp_resource(), desc));
 167         }
 168         break;  // Drop through and return null host.
 169       }
 170       case PpapiHostMsg_VideoCapture_Create::ID: {
 171         PepperVideoCaptureHost* host =
 172             new PepperVideoCaptureHost(host_, instance, params.pp_resource());
 173         if (!host->Init()) {
 174           delete host;
 175           return scoped_ptr<ResourceHost>();
 176         }
 177         return scoped_ptr<ResourceHost>(host);
 178       }
 179     }
 180   }
 181
 182   return scoped_ptr<ResourceHost>();
 183 }
 184
 185 const ppapi::PpapiPermissions&
 186 ContentRendererPepperHostFactory::GetPermissions() const {
 187   return host_->GetPpapiHost()->permissions();
 188 }
 189
 190 }  // namespace content