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_compositor_host.h"
  13 #include "content/renderer/pepper/pepper_file_chooser_host.h"
  14 #include "content/renderer/pepper/pepper_file_ref_renderer_host.h"
  15 #include "content/renderer/pepper/pepper_file_system_host.h"
  16 #include "content/renderer/pepper/pepper_graphics_2d_host.h"
  17 #include "content/renderer/pepper/pepper_media_stream_video_track_host.h"
  18 #include "content/renderer/pepper/pepper_plugin_instance_impl.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_decoder_host.h"
  22 #include "content/renderer/pepper/pepper_video_destination_host.h"
  23 #include "content/renderer/pepper/pepper_video_source_host.h"
  24 #include "content/renderer/pepper/pepper_websocket_host.h"
  25 #include "content/renderer/pepper/ppb_image_data_impl.h"
  26 #include "content/renderer/pepper/renderer_ppapi_host_impl.h"
  27 #include "ppapi/host/resource_host.h"
  28 #include "ppapi/proxy/ppapi_message_utils.h"
  29 #include "ppapi/proxy/ppapi_messages.h"
  30 #include "ppapi/proxy/serialized_structs.h"
  31 #include "ppapi/shared_impl/ppb_image_data_shared.h"
  32 #include "third_party/WebKit/public/platform/WebURL.h"
  33 #include "third_party/WebKit/public/web/WebDocument.h"
  34 #include "third_party/WebKit/public/web/WebElement.h"
  35 #include "third_party/WebKit/public/web/WebPluginContainer.h"
  36
  37 using ppapi::host::ResourceHost;
  38 using ppapi::UnpackMessage;
  39
  40 namespace content {
  41
  42 namespace {
  43
  44 #if defined(ENABLE_WEBRTC)
  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 #endif  // defined(ENABLE_WEBRTC)
  57
  58 bool CanUseCompositorAPI(const RendererPpapiHost* host, PP_Instance instance) {
  59   blink::WebPluginContainer* container =
  60       host->GetContainerForInstance(instance);
  61   if (!container)
  62     return false;
  63
  64   GURL document_url = container->element().document().url();
  65   ContentRendererClient* content_renderer_client =
  66       GetContentClient()->renderer();
  67   return content_renderer_client->IsPluginAllowedToUseCompositorAPI(
  68       document_url);
  69 }
  70
  71 bool CanUseVideoDecodeAPI(const RendererPpapiHost* host, PP_Instance instance) {
  72   blink::WebPluginContainer* container =
  73       host->GetContainerForInstance(instance);
  74   if (!container)
  75     return false;
  76
  77   GURL document_url = container->element().document().url();
  78   ContentRendererClient* content_renderer_client =
  79       GetContentClient()->renderer();
  80   return content_renderer_client->IsPluginAllowedToUseVideoDecodeAPI(
  81       document_url);
  82 }
  83
  84 }  // namespace
  85
  86 ContentRendererPepperHostFactory::ContentRendererPepperHostFactory(
  87     RendererPpapiHostImpl* host)
  88     : host_(host) {}
  89
  90 ContentRendererPepperHostFactory::~ContentRendererPepperHostFactory() {}
  91
  92 scoped_ptr<ResourceHost> ContentRendererPepperHostFactory::CreateResourceHost(
  93     ppapi::host::PpapiHost* host,
  94     const ppapi::proxy::ResourceMessageCallParams& params,
  95     PP_Instance instance,
  96     const IPC::Message& message) {
  97   DCHECK(host == host_->GetPpapiHost());
  98
  99   // Make sure the plugin is giving us a valid instance for this resource.
 100   if (!host_->IsValidInstance(instance))
 101     return scoped_ptr<ResourceHost>();
 102
 103   PepperPluginInstanceImpl* instance_impl =
 104       host_->GetPluginInstanceImpl(instance);
 105   if (!instance_impl->render_frame())
 106     return scoped_ptr<ResourceHost>();
 107
 108   // Public interfaces.
 109   switch (message.type()) {
 110     case PpapiHostMsg_Compositor_Create::ID: {
 111       if (!CanUseCompositorAPI(host_, instance))
 112         return scoped_ptr<ResourceHost>();
 113       return scoped_ptr<ResourceHost>(
 114           new PepperCompositorHost(host_, instance, params.pp_resource()));
 115     }
 116     case PpapiHostMsg_FileRef_CreateForFileAPI::ID: {
 117       PP_Resource file_system;
 118       std::string internal_path;
 119       if (!UnpackMessage<PpapiHostMsg_FileRef_CreateForFileAPI>(
 120               message, &file_system, &internal_path)) {
 121         NOTREACHED();
 122         return scoped_ptr<ResourceHost>();
 123       }
 124       return scoped_ptr<ResourceHost>(new PepperFileRefRendererHost(
 125           host_, instance, params.pp_resource(), file_system, internal_path));
 126     }
 127     case PpapiHostMsg_FileSystem_Create::ID: {
 128       PP_FileSystemType file_system_type;
 129       if (!UnpackMessage<PpapiHostMsg_FileSystem_Create>(message,
 130                                                          &file_system_type)) {
 131         NOTREACHED();
 132         return scoped_ptr<ResourceHost>();
 133       }
 134       return scoped_ptr<ResourceHost>(new PepperFileSystemHost(
 135           host_, instance, params.pp_resource(), file_system_type));
 136     }
 137     case PpapiHostMsg_Graphics2D_Create::ID: {
 138       PP_Size size;
 139       PP_Bool is_always_opaque;
 140       if (!UnpackMessage<PpapiHostMsg_Graphics2D_Create>(
 141               message, &size, &is_always_opaque)) {
 142         NOTREACHED();
 143         return scoped_ptr<ResourceHost>();
 144       }
 145       scoped_refptr<PPB_ImageData_Impl> image_data(new PPB_ImageData_Impl(
 146           instance, ppapi::PPB_ImageData_Shared::PLATFORM));
 147       return scoped_ptr<ResourceHost>(
 148           PepperGraphics2DHost::Create(host_,
 149                                        instance,
 150                                        params.pp_resource(),
 151                                        size,
 152                                        is_always_opaque,
 153                                        image_data));
 154     }
 155     case PpapiHostMsg_URLLoader_Create::ID:
 156       return scoped_ptr<ResourceHost>(new PepperURLLoaderHost(
 157           host_, false, instance, params.pp_resource()));
 158     case PpapiHostMsg_VideoDecoder_Create::ID: {
 159       if (!CanUseVideoDecodeAPI(host_, instance))
 160         return scoped_ptr<ResourceHost>();
 161       return scoped_ptr<ResourceHost>(
 162           new PepperVideoDecoderHost(host_, instance, params.pp_resource()));
 163     }
 164     case PpapiHostMsg_WebSocket_Create::ID:
 165       return scoped_ptr<ResourceHost>(
 166           new PepperWebSocketHost(host_, instance, params.pp_resource()));
 167 #if defined(ENABLE_WEBRTC)
 168     case PpapiHostMsg_MediaStreamVideoTrack_Create::ID:
 169       return scoped_ptr<ResourceHost>(new PepperMediaStreamVideoTrackHost(
 170           host_, instance, params.pp_resource()));
 171     // These private MediaStream interfaces are exposed as if they were public
 172     // so they can be used by NaCl plugins. However, they are available only
 173     // for whitelisted apps.
 174     case PpapiHostMsg_VideoDestination_Create::ID:
 175       if (CanUseMediaStreamAPI(host_, instance))
 176         return scoped_ptr<ResourceHost>(new PepperVideoDestinationHost(
 177             host_, instance, params.pp_resource()));
 178     case PpapiHostMsg_VideoSource_Create::ID:
 179       if (CanUseMediaStreamAPI(host_, instance))
 180         return scoped_ptr<ResourceHost>(
 181             new PepperVideoSourceHost(host_, instance, params.pp_resource()));
 182 #endif  // defined(ENABLE_WEBRTC)
 183   }
 184
 185   // Dev interfaces.
 186   if (GetPermissions().HasPermission(ppapi::PERMISSION_DEV)) {
 187     switch (message.type()) {
 188       case PpapiHostMsg_AudioInput_Create::ID:
 189         return scoped_ptr<ResourceHost>(
 190             new PepperAudioInputHost(host_, instance, params.pp_resource()));
 191       case PpapiHostMsg_FileChooser_Create::ID:
 192         return scoped_ptr<ResourceHost>(
 193             new PepperFileChooserHost(host_, instance, params.pp_resource()));
 194       case PpapiHostMsg_VideoCapture_Create::ID: {
 195         PepperVideoCaptureHost* host =
 196             new PepperVideoCaptureHost(host_, instance, params.pp_resource());
 197         if (!host->Init()) {
 198           delete host;
 199           return scoped_ptr<ResourceHost>();
 200         }
 201         return scoped_ptr<ResourceHost>(host);
 202       }
 203     }
 204   }
 205
 206   return scoped_ptr<ResourceHost>();
 207 }
 208
 209 const ppapi::PpapiPermissions&
 210 ContentRendererPepperHostFactory::GetPermissions() const {
 211   return host_->GetPpapiHost()->permissions();
 212 }
 213
 214 }  // namespace content