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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/pepper/content_renderer_pepper_host_factory.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
#include "content/public/common/content_client.h"
#include "content/public/renderer/content_renderer_client.h"
#include "content/renderer/pepper/pepper_audio_input_host.h"
#include "content/renderer/pepper/pepper_file_chooser_host.h"
#include "content/renderer/pepper/pepper_file_ref_renderer_host.h"
#include "content/renderer/pepper/pepper_file_system_host.h"
#include "content/renderer/pepper/pepper_graphics_2d_host.h"
#include "content/renderer/pepper/pepper_media_stream_video_track_host.h"
#include "content/renderer/pepper/pepper_plugin_instance_impl.h"
#include "content/renderer/pepper/pepper_truetype_font_host.h"
#include "content/renderer/pepper/pepper_url_loader_host.h"
#include "content/renderer/pepper/pepper_video_capture_host.h"
#include "content/renderer/pepper/pepper_video_destination_host.h"
#include "content/renderer/pepper/pepper_video_source_host.h"
#include "content/renderer/pepper/pepper_websocket_host.h"
#include "content/renderer/pepper/ppb_image_data_impl.h"
#include "content/renderer/pepper/renderer_ppapi_host_impl.h"
#include "ppapi/host/resource_host.h"
#include "ppapi/proxy/ppapi_message_utils.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/serialized_structs.h"
#include "ppapi/shared_impl/ppb_image_data_shared.h"
#include "third_party/WebKit/public/platform/WebURL.h"
#include "third_party/WebKit/public/web/WebDocument.h"
#include "third_party/WebKit/public/web/WebElement.h"
#include "third_party/WebKit/public/web/WebPluginContainer.h"
using ppapi::host::ResourceHost;
using ppapi::proxy::SerializedTrueTypeFontDesc;
using ppapi::UnpackMessage;
namespace content {
#if defined(ENABLE_WEBRTC)
namespace {
bool CanUseMediaStreamAPI(const RendererPpapiHost* host, PP_Instance instance) {
blink::WebPluginContainer* container =
host->GetContainerForInstance(instance);
if (!container)
return false;
GURL document_url = container->element().document().url();
ContentRendererClient* content_renderer_client =
GetContentClient()->renderer();
return content_renderer_client->AllowPepperMediaStreamAPI(document_url);
}
} // namespace
#endif // defined(ENABLE_WEBRTC)
ContentRendererPepperHostFactory::ContentRendererPepperHostFactory(
RendererPpapiHostImpl* host)
: host_(host) {}
ContentRendererPepperHostFactory::~ContentRendererPepperHostFactory() {}
scoped_ptr<ResourceHost> ContentRendererPepperHostFactory::CreateResourceHost(
ppapi::host::PpapiHost* host,
const ppapi::proxy::ResourceMessageCallParams& params,
PP_Instance instance,
const IPC::Message& message) {
DCHECK(host == host_->GetPpapiHost());
// Make sure the plugin is giving us a valid instance for this resource.
if (!host_->IsValidInstance(instance))
return scoped_ptr<ResourceHost>();
PepperPluginInstanceImpl* instance_impl =
host_->GetPluginInstanceImpl(instance);
if (!instance_impl->render_frame())
return scoped_ptr<ResourceHost>();
// Public interfaces.
switch (message.type()) {
case PpapiHostMsg_FileRef_CreateForFileAPI::ID: {
PP_Resource file_system;
std::string internal_path;
if (!UnpackMessage<PpapiHostMsg_FileRef_CreateForFileAPI>(
message, &file_system, &internal_path)) {
NOTREACHED();
return scoped_ptr<ResourceHost>();
}
return scoped_ptr<ResourceHost>(new PepperFileRefRendererHost(
host_, instance, params.pp_resource(), file_system, internal_path));
}
case PpapiHostMsg_FileSystem_Create::ID: {
PP_FileSystemType file_system_type;
if (!UnpackMessage<PpapiHostMsg_FileSystem_Create>(message,
&file_system_type)) {
NOTREACHED();
return scoped_ptr<ResourceHost>();
}
return scoped_ptr<ResourceHost>(new PepperFileSystemHost(
host_, instance, params.pp_resource(), file_system_type));
}
case PpapiHostMsg_Graphics2D_Create::ID: {
PP_Size size;
PP_Bool is_always_opaque;
if (!UnpackMessage<PpapiHostMsg_Graphics2D_Create>(
message, &size, &is_always_opaque)) {
NOTREACHED();
return scoped_ptr<ResourceHost>();
}
scoped_refptr<PPB_ImageData_Impl> image_data(new PPB_ImageData_Impl(
instance, ppapi::PPB_ImageData_Shared::PLATFORM));
return scoped_ptr<ResourceHost>(
PepperGraphics2DHost::Create(host_,
instance,
params.pp_resource(),
size,
is_always_opaque,
image_data));
}
case PpapiHostMsg_URLLoader_Create::ID:
return scoped_ptr<ResourceHost>(new PepperURLLoaderHost(
host_, false, instance, params.pp_resource()));
case PpapiHostMsg_WebSocket_Create::ID:
return scoped_ptr<ResourceHost>(
new PepperWebSocketHost(host_, instance, params.pp_resource()));
#if defined(ENABLE_WEBRTC)
case PpapiHostMsg_MediaStreamVideoTrack_Create::ID:
return scoped_ptr<ResourceHost>(new PepperMediaStreamVideoTrackHost(
host_, instance, params.pp_resource()));
// These private MediaStream interfaces are exposed as if they were public
// so they can be used by NaCl plugins. However, they are available only
// for whitelisted apps.
case PpapiHostMsg_VideoDestination_Create::ID:
if (CanUseMediaStreamAPI(host_, instance))
return scoped_ptr<ResourceHost>(new PepperVideoDestinationHost(
host_, instance, params.pp_resource()));
case PpapiHostMsg_VideoSource_Create::ID:
if (CanUseMediaStreamAPI(host_, instance))
return scoped_ptr<ResourceHost>(
new PepperVideoSourceHost(host_, instance, params.pp_resource()));
#endif // defined(ENABLE_WEBRTC)
}
// Dev interfaces.
if (GetPermissions().HasPermission(ppapi::PERMISSION_DEV)) {
switch (message.type()) {
case PpapiHostMsg_AudioInput_Create::ID:
return scoped_ptr<ResourceHost>(
new PepperAudioInputHost(host_, instance, params.pp_resource()));
case PpapiHostMsg_FileChooser_Create::ID:
return scoped_ptr<ResourceHost>(
new PepperFileChooserHost(host_, instance, params.pp_resource()));
case PpapiHostMsg_TrueTypeFont_Create::ID: {
SerializedTrueTypeFontDesc desc;
if (!UnpackMessage<PpapiHostMsg_TrueTypeFont_Create>(message, &desc)) {
NOTREACHED();
return scoped_ptr<ResourceHost>();
}
// Check that the family name is valid UTF-8 before passing it to the
// host OS.
if (IsStringUTF8(desc.family)) {
return scoped_ptr<ResourceHost>(new PepperTrueTypeFontHost(
host_, instance, params.pp_resource(), desc));
}
break; // Drop through and return null host.
}
case PpapiHostMsg_VideoCapture_Create::ID: {
PepperVideoCaptureHost* host =
new PepperVideoCaptureHost(host_, instance, params.pp_resource());
if (!host->Init()) {
delete host;
return scoped_ptr<ResourceHost>();
}
return scoped_ptr<ResourceHost>(host);
}
}
}
return scoped_ptr<ResourceHost>();
}
const ppapi::PpapiPermissions&
ContentRendererPepperHostFactory::GetPermissions() const {
return host_->GetPpapiHost()->permissions();
}
} // namespace content
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