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// Copyright (c) 2009 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/browser/utility_process_host.h"
#include "base/command_line.h"
#include "base/file_util.h"
#include "base/path_service.h"
#include "base/process_util.h"
#include "base/task.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/render_messages.h"
#if defined(OS_WIN)
#include "chrome/browser/sandbox_policy.h"
#endif
UtilityProcessHost::UtilityProcessHost(ResourceDispatcherHost* rdh,
Client* client,
MessageLoop* client_loop)
: ChildProcessHost(UTILITY_PROCESS, rdh),
client_(client),
client_loop_(client_loop) {
}
UtilityProcessHost::~UtilityProcessHost() {
}
bool UtilityProcessHost::StartExtensionUnpacker(const FilePath& extension) {
// Grant the subprocess access to the entire subdir the extension file is
// in, so that it can unpack to that dir.
if (!StartProcess(extension.DirName()))
return false;
Send(new UtilityMsg_UnpackExtension(extension));
return true;
}
bool UtilityProcessHost::StartProcess(const FilePath& exposed_dir) {
if (!CreateChannel())
return false;
std::wstring exe_path;
if (!PathService::Get(base::FILE_EXE, &exe_path))
return false;
CommandLine cmd_line(exe_path);
cmd_line.AppendSwitchWithValue(switches::kProcessType,
switches::kUtilityProcess);
cmd_line.AppendSwitchWithValue(switches::kProcessChannelID, channel_id());
base::ProcessHandle process;
#if defined(OS_WIN)
process = sandbox::StartProcessWithAccess(&cmd_line, exposed_dir);
#else
// TODO(port): sandbox
base::LaunchApp(cmd_line, false, false, &process);
#endif
if (!process)
return false;
SetHandle(process);
return true;
}
void UtilityProcessHost::OnMessageReceived(const IPC::Message& message) {
client_loop_->PostTask(FROM_HERE,
NewRunnableMethod(client_.get(), &Client::OnMessageReceived, message));
}
void UtilityProcessHost::OnChannelError() {
bool child_exited;
bool did_crash = base::DidProcessCrash(&child_exited, handle());
if (did_crash) {
client_loop_->PostTask(FROM_HERE,
NewRunnableMethod(client_.get(), &Client::OnProcessCrashed));
}
}
void UtilityProcessHost::Client::OnMessageReceived(
const IPC::Message& message) {
IPC_BEGIN_MESSAGE_MAP(UtilityProcessHost, message)
IPC_MESSAGE_HANDLER(UtilityHostMsg_UnpackExtension_Reply,
Client::OnUnpackExtensionReply)
IPC_END_MESSAGE_MAP_EX()
}
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