Index: content/plugin/plugin_channel.cc |
diff --git a/content/plugin/plugin_channel.cc b/content/plugin/plugin_channel.cc |
deleted file mode 100644 |
index 934c97d933ad0c0cdcb980db9ca375a327c26c24..0000000000000000000000000000000000000000 |
--- a/content/plugin/plugin_channel.cc |
+++ /dev/null |
@@ -1,327 +0,0 @@ |
-// 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/plugin/plugin_channel.h" |
- |
-#include <stddef.h> |
- |
-#include "base/bind.h" |
-#include "base/command_line.h" |
-#include "base/process/process_handle.h" |
-#include "base/strings/string_util.h" |
-#include "base/synchronization/lock.h" |
-#include "base/synchronization/waitable_event.h" |
-#include "build/build_config.h" |
-#include "content/child/child_process.h" |
-#include "content/child/npapi/plugin_instance.h" |
-#include "content/child/npapi/webplugin_delegate_impl.h" |
-#include "content/child/plugin_messages.h" |
-#include "content/common/plugin_process_messages.h" |
-#include "content/plugin/plugin_thread.h" |
-#include "content/plugin/webplugin_delegate_stub.h" |
-#include "content/plugin/webplugin_proxy.h" |
-#include "content/public/common/content_switches.h" |
-#include "ipc/message_filter.h" |
- |
-#if defined(OS_POSIX) |
-#include "ipc/ipc_channel_posix.h" |
-#endif |
- |
-namespace content { |
- |
-namespace { |
- |
-// How long we wait before releasing the plugin process. |
-const int kPluginReleaseTimeMinutes = 5; |
- |
-} // namespace |
- |
-// If a sync call to the renderer results in a modal dialog, we need to have a |
-// way to know so that we can run a nested message loop to simulate what would |
-// happen in a single process browser and avoid deadlock. |
-class PluginChannel::MessageFilter : public IPC::MessageFilter { |
- public: |
- MessageFilter() : sender_(NULL) { } |
- |
- base::WaitableEvent* GetModalDialogEvent(int render_view_id) { |
- base::AutoLock auto_lock(modal_dialog_event_map_lock_); |
- if (!modal_dialog_event_map_.count(render_view_id)) { |
- NOTREACHED(); |
- return NULL; |
- } |
- |
- return modal_dialog_event_map_[render_view_id].event; |
- } |
- |
- // Decrement the ref count associated with the modal dialog event for the |
- // given tab. |
- void ReleaseModalDialogEvent(int render_view_id) { |
- base::AutoLock auto_lock(modal_dialog_event_map_lock_); |
- if (!modal_dialog_event_map_.count(render_view_id)) { |
- NOTREACHED(); |
- return; |
- } |
- |
- if (--(modal_dialog_event_map_[render_view_id].refcount)) |
- return; |
- |
- // Delete the event when the stack unwinds as it could be in use now. |
- base::MessageLoop::current()->DeleteSoon( |
- FROM_HERE, modal_dialog_event_map_[render_view_id].event); |
- modal_dialog_event_map_.erase(render_view_id); |
- } |
- |
- bool Send(IPC::Message* message) { |
- // Need this function for the IPC_MESSAGE_HANDLER_DELAY_REPLY macro. |
- return sender_->Send(message); |
- } |
- |
- // IPC::MessageFilter: |
- void OnFilterAdded(IPC::Sender* sender) override { sender_ = sender; } |
- |
- bool OnMessageReceived(const IPC::Message& message) override { |
- IPC_BEGIN_MESSAGE_MAP(PluginChannel::MessageFilter, message) |
- IPC_MESSAGE_HANDLER_DELAY_REPLY(PluginMsg_Init, OnInit) |
- IPC_MESSAGE_HANDLER(PluginMsg_SignalModalDialogEvent, |
- OnSignalModalDialogEvent) |
- IPC_MESSAGE_HANDLER(PluginMsg_ResetModalDialogEvent, |
- OnResetModalDialogEvent) |
- IPC_END_MESSAGE_MAP() |
- return message.type() == PluginMsg_SignalModalDialogEvent::ID || |
- message.type() == PluginMsg_ResetModalDialogEvent::ID; |
- } |
- |
- protected: |
- ~MessageFilter() override { |
- // Clean up in case of renderer crash. |
- for (ModalDialogEventMap::iterator i = modal_dialog_event_map_.begin(); |
- i != modal_dialog_event_map_.end(); ++i) { |
- delete i->second.event; |
- } |
- } |
- |
- private: |
- void OnInit(const PluginMsg_Init_Params& params, IPC::Message* reply_msg) { |
- base::AutoLock auto_lock(modal_dialog_event_map_lock_); |
- if (modal_dialog_event_map_.count(params.host_render_view_routing_id)) { |
- modal_dialog_event_map_[params.host_render_view_routing_id].refcount++; |
- return; |
- } |
- |
- WaitableEventWrapper wrapper; |
- wrapper.event = new base::WaitableEvent(true, false); |
- wrapper.refcount = 1; |
- modal_dialog_event_map_[params.host_render_view_routing_id] = wrapper; |
- } |
- |
- void OnSignalModalDialogEvent(int render_view_id) { |
- base::AutoLock auto_lock(modal_dialog_event_map_lock_); |
- if (modal_dialog_event_map_.count(render_view_id)) |
- modal_dialog_event_map_[render_view_id].event->Signal(); |
- } |
- |
- void OnResetModalDialogEvent(int render_view_id) { |
- base::AutoLock auto_lock(modal_dialog_event_map_lock_); |
- if (modal_dialog_event_map_.count(render_view_id)) |
- modal_dialog_event_map_[render_view_id].event->Reset(); |
- } |
- |
- struct WaitableEventWrapper { |
- base::WaitableEvent* event; |
- int refcount; // There could be multiple plugin instances per tab. |
- }; |
- typedef std::map<int, WaitableEventWrapper> ModalDialogEventMap; |
- ModalDialogEventMap modal_dialog_event_map_; |
- base::Lock modal_dialog_event_map_lock_; |
- |
- IPC::Sender* sender_; |
-}; |
- |
-PluginChannel* PluginChannel::GetPluginChannel( |
- int renderer_id, |
- base::SingleThreadTaskRunner* ipc_task_runner) { |
- // Map renderer ID to a (single) channel to that process. |
- std::string channel_key = base::StringPrintf( |
- "%d.r%d", base::GetCurrentProcId(), renderer_id); |
- |
- PluginChannel* channel = |
- static_cast<PluginChannel*>(NPChannelBase::GetChannel( |
- channel_key, IPC::Channel::MODE_SERVER, ClassFactory, ipc_task_runner, |
- false, ChildProcess::current()->GetShutDownEvent())); |
- |
- if (channel) |
- channel->renderer_id_ = renderer_id; |
- |
- return channel; |
-} |
- |
-// static |
-void PluginChannel::NotifyRenderersOfPendingShutdown() { |
- Broadcast(new PluginHostMsg_PluginShuttingDown()); |
-} |
- |
-bool PluginChannel::Send(IPC::Message* msg) { |
- in_send_++; |
- if (log_messages_) { |
- VLOG(1) << "sending message @" << msg << " on channel @" << this |
- << " with type " << msg->type(); |
- } |
- bool result = NPChannelBase::Send(msg); |
- in_send_--; |
- return result; |
-} |
- |
-bool PluginChannel::OnMessageReceived(const IPC::Message& msg) { |
- if (log_messages_) { |
- VLOG(1) << "received message @" << &msg << " on channel @" << this |
- << " with type " << msg.type(); |
- } |
- return NPChannelBase::OnMessageReceived(msg); |
-} |
- |
-void PluginChannel::OnChannelError() { |
- NPChannelBase::OnChannelError(); |
- CleanUp(); |
-} |
- |
-int PluginChannel::GenerateRouteID() { |
- static int last_id = 0; |
- return ++last_id; |
-} |
- |
-base::WaitableEvent* PluginChannel::GetModalDialogEvent(int render_view_id) { |
- return filter_->GetModalDialogEvent(render_view_id); |
-} |
- |
-PluginChannel::~PluginChannel() { |
- PluginThread::current()->Send(new PluginProcessHostMsg_ChannelDestroyed( |
- renderer_id_)); |
- process_ref_.ReleaseWithDelay( |
- base::TimeDelta::FromMinutes(kPluginReleaseTimeMinutes)); |
-} |
- |
-void PluginChannel::CleanUp() { |
- // We need to clean up the stubs so that they call NPPDestroy. This will |
- // also lead to them releasing their reference on this object so that it can |
- // be deleted. |
- for (size_t i = 0; i < plugin_stubs_.size(); ++i) |
- RemoveRoute(plugin_stubs_[i]->instance_id()); |
- |
- // Need to addref this object temporarily because otherwise removing the last |
- // stub will cause the destructor of this object to be called, however at |
- // that point plugin_stubs_ will have one element and its destructor will be |
- // called twice. |
- scoped_refptr<PluginChannel> me(this); |
- |
- while (!plugin_stubs_.empty()) { |
- // Separate vector::erase and ~WebPluginDelegateStub. |
- // See https://code.google.com/p/chromium/issues/detail?id=314088 |
- scoped_refptr<WebPluginDelegateStub> stub = plugin_stubs_[0]; |
- plugin_stubs_.erase(plugin_stubs_.begin()); |
- } |
-} |
- |
-bool PluginChannel::Init(base::SingleThreadTaskRunner* ipc_task_runner, |
- bool create_pipe_now, |
- base::WaitableEvent* shutdown_event) { |
- if (!NPChannelBase::Init(ipc_task_runner, create_pipe_now, shutdown_event)) |
- return false; |
- |
- channel_->AddFilter(filter_.get()); |
- return true; |
-} |
- |
-PluginChannel::PluginChannel() |
- : renderer_id_(-1), |
- in_send_(0), |
- incognito_(false), |
- filter_(new MessageFilter()) { |
- set_send_unblocking_only_during_unblock_dispatch(); |
- const base::CommandLine* command_line = |
- base::CommandLine::ForCurrentProcess(); |
- log_messages_ = command_line->HasSwitch(switches::kLogPluginMessages); |
-} |
- |
-bool PluginChannel::OnControlMessageReceived(const IPC::Message& msg) { |
- bool handled = true; |
- IPC_BEGIN_MESSAGE_MAP(PluginChannel, msg) |
- IPC_MESSAGE_HANDLER(PluginMsg_CreateInstance, OnCreateInstance) |
- IPC_MESSAGE_HANDLER_DELAY_REPLY(PluginMsg_DestroyInstance, |
- OnDestroyInstance) |
- IPC_MESSAGE_HANDLER(PluginMsg_GenerateRouteID, OnGenerateRouteID) |
- IPC_MESSAGE_HANDLER(PluginProcessMsg_ClearSiteData, OnClearSiteData) |
- IPC_MESSAGE_UNHANDLED(handled = false) |
- IPC_END_MESSAGE_MAP() |
- DCHECK(handled); |
- return handled; |
-} |
- |
-void PluginChannel::OnCreateInstance(const std::string& mime_type, |
- int* instance_id) { |
- *instance_id = GenerateRouteID(); |
- scoped_refptr<WebPluginDelegateStub> stub(new WebPluginDelegateStub( |
- mime_type, *instance_id, this)); |
- AddRoute(*instance_id, stub.get()); |
- plugin_stubs_.push_back(stub); |
-} |
- |
-void PluginChannel::OnDestroyInstance(int instance_id, |
- IPC::Message* reply_msg) { |
- for (size_t i = 0; i < plugin_stubs_.size(); ++i) { |
- if (plugin_stubs_[i]->instance_id() == instance_id) { |
- scoped_refptr<MessageFilter> filter(filter_); |
- int render_view_id = |
- plugin_stubs_[i]->webplugin()->host_render_view_routing_id(); |
- // Separate vector::erase and ~WebPluginDelegateStub. |
- // See https://code.google.com/p/chromium/issues/detail?id=314088 |
- scoped_refptr<WebPluginDelegateStub> stub = plugin_stubs_[i]; |
- plugin_stubs_.erase(plugin_stubs_.begin() + i); |
- stub = NULL; |
- |
- Send(reply_msg); |
- RemoveRoute(instance_id); |
- // NOTE: *this* might be deleted as a result of calling RemoveRoute. |
- // Don't release the modal dialog event right away, but do it after the |
- // stack unwinds since the plugin can be destroyed later if it's in use |
- // right now. |
- base::MessageLoop::current()->PostNonNestableTask( |
- FROM_HERE, |
- base::Bind(&MessageFilter::ReleaseModalDialogEvent, |
- filter.get(), |
- render_view_id)); |
- return; |
- } |
- } |
- |
- NOTREACHED() << "Couldn't find WebPluginDelegateStub to destroy"; |
-} |
- |
-void PluginChannel::OnGenerateRouteID(int* route_id) { |
- *route_id = GenerateRouteID(); |
-} |
- |
-void PluginChannel::OnClearSiteData(const std::string& site, |
- uint64_t flags, |
- uint64_t max_age) { |
- bool success = false; |
- base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); |
- base::FilePath path = command_line->GetSwitchValuePath(switches::kPluginPath); |
- scoped_refptr<PluginLib> plugin_lib(PluginLib::CreatePluginLib(path)); |
- if (plugin_lib.get()) { |
- NPError err = plugin_lib->NP_Initialize(); |
- if (err == NPERR_NO_ERROR) { |
- const char* site_str = site.empty() ? NULL : site.c_str(); |
- err = plugin_lib->NP_ClearSiteData(site_str, flags, max_age); |
- std::string site_name = |
- site.empty() ? "NULL" |
- : base::StringPrintf("\"%s\"", site_str); |
- VLOG(1) << "NPP_ClearSiteData(" << site_name << ", " << flags << ", " |
- << max_age << ") returned " << err; |
- success = (err == NPERR_NO_ERROR); |
- } |
- } |
- Send(new PluginProcessHostMsg_ClearSiteDataResult(success)); |
-} |
- |
-} // namespace content |