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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/host_dispatcher_wrapper.h"
#include "build/build_config.h"
#include "content/common/frame_messages.h"
#include "content/public/common/origin_util.h"
#include "content/renderer/pepper/pepper_hung_plugin_filter.h"
#include "content/renderer/pepper/pepper_plugin_instance_impl.h"
#include "content/renderer/pepper/pepper_proxy_channel_delegate_impl.h"
#include "content/renderer/pepper/plugin_module.h"
#include "content/renderer/pepper/renderer_ppapi_host_impl.h"
#include "content/renderer/pepper/renderer_restrict_dispatch_group.h"
#include "content/renderer/render_frame_impl.h"
#include "third_party/WebKit/public/web/WebDocument.h"
#include "third_party/WebKit/public/web/WebPluginContainer.h"
namespace content {
HostDispatcherWrapper::HostDispatcherWrapper(
PluginModule* module,
base::ProcessId peer_pid,
int plugin_child_id,
const ppapi::PpapiPermissions& perms,
bool is_external)
: module_(module),
peer_pid_(peer_pid),
plugin_child_id_(plugin_child_id),
permissions_(perms),
is_external_(is_external) {}
HostDispatcherWrapper::~HostDispatcherWrapper() {}
bool HostDispatcherWrapper::Init(const IPC::ChannelHandle& channel_handle,
PP_GetInterface_Func local_get_interface,
const ppapi::Preferences& preferences,
scoped_refptr<PepperHungPluginFilter> filter) {
if (!channel_handle.is_mojo_channel_handle())
return false;
dispatcher_delegate_.reset(new PepperProxyChannelDelegateImpl);
dispatcher_.reset(new ppapi::proxy::HostDispatcher(
module_->pp_module(), local_get_interface, permissions_));
// The HungPluginFilter needs to know when we are blocked on a sync message
// to the plugin. Note the filter outlives the dispatcher, so there is no
// need to remove it as an observer.
dispatcher_->AddSyncMessageStatusObserver(filter.get());
// Guarantee the hung_plugin_filter_ outlives |dispatcher_|.
hung_plugin_filter_ = filter;
if (!dispatcher_->InitHostWithChannel(dispatcher_delegate_.get(),
peer_pid_,
channel_handle,
true, // Client.
preferences)) {
dispatcher_.reset();
dispatcher_delegate_.reset();
return false;
}
// HungPluginFilter needs to listen for some messages on the IO thread.
dispatcher_->AddIOThreadMessageFilter(filter);
dispatcher_->channel()->SetRestrictDispatchChannelGroup(
kRendererRestrictDispatchGroup_Pepper);
return true;
}
const void* HostDispatcherWrapper::GetProxiedInterface(const char* name) {
return dispatcher_->GetProxiedInterface(name);
}
void HostDispatcherWrapper::AddInstance(PP_Instance instance) {
ppapi::proxy::HostDispatcher::SetForInstance(instance, dispatcher_.get());
RendererPpapiHostImpl* host =
RendererPpapiHostImpl::GetForPPInstance(instance);
// TODO(brettw) remove this null check when the old-style pepper-based
// browser tag is removed from this file. Getting this notification should
// always give us an instance we can find in the map otherwise, but that
// isn't true for browser tag support.
if (host) {
RenderFrame* render_frame = host->GetRenderFrameForInstance(instance);
PepperPluginInstance* plugin_instance = host->GetPluginInstance(instance);
bool is_privileged_context =
plugin_instance->GetContainer()->GetDocument().IsSecureContext() &&
content::IsOriginSecure(plugin_instance->GetPluginURL());
render_frame->Send(new FrameHostMsg_DidCreateOutOfProcessPepperInstance(
plugin_child_id_, instance,
PepperRendererInstanceData(
0, // The render process id will be supplied in the browser.
render_frame->GetRoutingID(), host->GetDocumentURL(instance),
plugin_instance->GetPluginURL(), is_privileged_context),
is_external_));
}
}
void HostDispatcherWrapper::RemoveInstance(PP_Instance instance) {
ppapi::proxy::HostDispatcher::RemoveForInstance(instance);
RendererPpapiHostImpl* host =
RendererPpapiHostImpl::GetForPPInstance(instance);
// TODO(brettw) remove null check as described in AddInstance.
if (host) {
RenderFrame* render_frame = host->GetRenderFrameForInstance(instance);
if (render_frame) {
render_frame->Send(new FrameHostMsg_DidDeleteOutOfProcessPepperInstance(
plugin_child_id_, instance, is_external_));
}
}
}
} // namespace content
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