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// Copyright (c) 2006-2008 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 "chrome/plugin/plugin_thread.h"
#include "build/build_config.h"
#if defined(OS_WIN)
#include <windows.h>
#include <objbase.h>
#endif
#include "base/command_line.h"
#include "base/process_util.h"
#include "chrome/common/child_process.h"
#include "chrome/common/chrome_plugin_lib.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/notification_service.h"
#include "chrome/common/plugin_messages.h"
#include "chrome/common/render_messages.h"
#include "chrome/plugin/chrome_plugin_host.h"
#include "chrome/plugin/npobject_util.h"
#include "chrome/renderer/render_thread.h"
#include "net/base/net_errors.h"
#include "webkit/glue/plugins/plugin_lib.h"
#include "webkit/glue/webkit_glue.h"
PluginThread::PluginThread()
: ChildThread(base::Thread::Options(MessageLoop::TYPE_UI, 0)),
preloaded_plugin_module_(NULL) {
plugin_path_ = FilePath::FromWStringHack(
CommandLine::ForCurrentProcess()->GetSwitchValue(switches::kPluginPath));
}
PluginThread::~PluginThread() {
}
PluginThread* PluginThread::current() {
DCHECK(IsPluginProcess());
return static_cast<PluginThread*>(ChildThread::current());
}
void PluginThread::OnControlMessageReceived(const IPC::Message& msg) {
IPC_BEGIN_MESSAGE_MAP(PluginThread, msg)
IPC_MESSAGE_HANDLER(PluginProcessMsg_CreateChannel, OnCreateChannel)
IPC_MESSAGE_HANDLER(PluginProcessMsg_PluginMessage, OnPluginMessage)
IPC_END_MESSAGE_MAP()
}
void PluginThread::Init() {
ChildThread::Init();
PatchNPNFunctions();
#if defined(OS_WIN)
CoInitialize(NULL);
#endif
notification_service_.reset(new NotificationService);
// Preload the library to avoid loading, unloading then reloading
preloaded_plugin_module_ = base::LoadNativeLibrary(plugin_path_);
ChromePluginLib::Create(plugin_path_, GetCPBrowserFuncsForPlugin());
scoped_refptr<NPAPI::PluginLib> plugin =
NPAPI::PluginLib::CreatePluginLib(plugin_path_);
if (plugin.get()) {
plugin->NP_Initialize();
}
// Certain plugins, such as flash, steal the unhandled exception filter
// thus we never get crash reports when they fault. This call fixes it.
message_loop()->set_exception_restoration(true);
}
void PluginThread::CleanUp() {
if (preloaded_plugin_module_) {
base::UnloadNativeLibrary(preloaded_plugin_module_);
preloaded_plugin_module_ = NULL;
}
PluginChannelBase::CleanupChannels();
NPAPI::PluginLib::UnloadAllPlugins();
ChromePluginLib::UnloadAllPlugins();
notification_service_.reset();
#if defined(OS_WIN)
CoUninitialize();
#endif
if (webkit_glue::ShouldForcefullyTerminatePluginProcess())
base::KillProcess(base::GetCurrentProcessHandle(), 0, /* wait= */ false);
// Call this last because it deletes the ResourceDispatcher, which is used
// in some of the above cleanup.
// See http://code.google.com/p/chromium/issues/detail?id=8980
ChildThread::CleanUp();
}
void PluginThread::OnCreateChannel(bool off_the_record) {
std::string channel_name;
scoped_refptr<PluginChannel> channel =
PluginChannel::GetPluginChannel(owner_loop());
if (channel.get()) {
channel_name = channel->channel_name();
channel->set_off_the_record(off_the_record);
}
Send(new PluginProcessHostMsg_ChannelCreated(channel_name));
}
void PluginThread::OnPluginMessage(const std::vector<unsigned char> &data) {
// We Add/Release ref here to ensure that something will trigger the
// shutdown mechanism for processes started in the absence of renderer's
// opening a plugin channel.
ChildProcess::current()->AddRefProcess();
ChromePluginLib *chrome_plugin = ChromePluginLib::Find(plugin_path_);
if (chrome_plugin) {
void *data_ptr = const_cast<void*>(reinterpret_cast<const void*>(&data[0]));
uint32 data_len = static_cast<uint32>(data.size());
chrome_plugin->functions().on_message(data_ptr, data_len);
}
ChildProcess::current()->ReleaseProcess();
}
namespace webkit_glue {
#if defined(OS_WIN)
bool DownloadUrl(const std::string& url, HWND caller_window) {
PluginThread* plugin_thread = PluginThread::current();
if (!plugin_thread) {
return false;
}
IPC::Message* message =
new PluginProcessHostMsg_DownloadUrl(MSG_ROUTING_NONE, url,
::GetCurrentProcessId(),
caller_window);
return plugin_thread->Send(message);
}
#endif
bool GetPluginFinderURL(std::string* plugin_finder_url) {
if (!plugin_finder_url) {
NOTREACHED();
return false;
}
PluginThread* plugin_thread = PluginThread::current();
if (!plugin_thread)
return false;
plugin_thread->Send(
new PluginProcessHostMsg_GetPluginFinderUrl(plugin_finder_url));
DCHECK(!plugin_finder_url->empty());
return true;
}
bool IsDefaultPluginEnabled() {
#if defined(OS_WIN)
return true;
#elif defined(OS_LINUX)
// http://code.google.com/p/chromium/issues/detail?id=10952
return false;
#elif defined(OS_MACOSX)
NOTIMPLEMENTED();
return false;
#endif
}
// Dispatch the resolve proxy resquest to the right code, depending on which
// process the plugin is running in {renderer, browser, plugin}.
bool FindProxyForUrl(const GURL& url, std::string* proxy_list) {
int net_error;
std::string proxy_result;
bool result;
if (IsPluginProcess()) {
result = PluginThread::current()->Send(
new PluginProcessHostMsg_ResolveProxy(url, &net_error, &proxy_result));
} else {
result = RenderThread::current()->Send(
new ViewHostMsg_ResolveProxy(url, &net_error, &proxy_result));
}
if (!result || net_error != net::OK)
return false;
*proxy_list = proxy_result;
return true;
}
} // namespace webkit_glue
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