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// Copyright (c) 2011 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_frame/chrome_launcher_utils.h"
#include "base/base_switches.h"
#include "base/command_line.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/path_service.h"
#include "base/string_util.h"
#include "base/win/windows_version.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_switches.h"
#include "chrome_frame/chrome_frame_automation.h"
#include "chrome_frame/policy_settings.h"
namespace {
const char kUpdateCommandFlag[] = "--update-cmd";
// Searches for the path to chrome_launcher.exe. Will return false if this
// executable cannot be found, otherwise the command line will be placed in
// |command_line|.
bool CreateChromeLauncherCommandLine(scoped_ptr<CommandLine>* command_line) {
DCHECK(command_line);
bool success = false;
// The launcher EXE will be in the same directory as the Chrome Frame DLL,
// so create a full path to it based on this assumption.
FilePath module_path;
if (PathService::Get(base::FILE_MODULE, &module_path)) {
FilePath current_dir = module_path.DirName();
FilePath chrome_launcher = current_dir.Append(
chrome_launcher::kLauncherExeBaseName);
if (file_util::PathExists(chrome_launcher)) {
command_line->reset(new CommandLine(chrome_launcher));
success = true;
}
}
if (!success) {
NOTREACHED() << "Could not find " << chrome_launcher::kLauncherExeBaseName
<< " in output dir.";
}
return success;
}
} // namespace
namespace chrome_launcher {
const wchar_t kLauncherExeBaseName[] = L"chrome_launcher.exe";
bool CreateUpdateCommandLine(const std::wstring& update_command,
scoped_ptr<CommandLine>* command_line) {
DCHECK(command_line);
bool success = false;
if (CreateChromeLauncherCommandLine(command_line)) {
(*command_line)->AppendArg(kUpdateCommandFlag);
(*command_line)->AppendArg(WideToASCII(update_command));
success = true;
}
return success;
}
bool CreateLaunchCommandLine(scoped_ptr<CommandLine>* command_line) {
DCHECK(command_line);
// Shortcut for OS versions that don't need the integrity broker.
if (base::win::GetVersion() < base::win::VERSION_VISTA) {
command_line->reset(new CommandLine(GetChromeExecutablePath()));
// When we do not use the Chrome Launcher, we need to add the optional extra
// parameters from the group policy here (this is normally done by the
// chrome launcher). We don't do this when we use the launcher as the
// optional arguments could trip off sanitization checks and prevent Chrome
// from being launched.
const CommandLine& additional_params =
PolicySettings::GetInstance()->AdditionalLaunchParameters();
command_line->get()->AppendArguments(additional_params, false);
return true;
}
return CreateChromeLauncherCommandLine(command_line);
}
FilePath GetChromeExecutablePath() {
FilePath cur_path;
PathService::Get(base::DIR_MODULE, &cur_path);
cur_path = cur_path.Append(chrome::kBrowserProcessExecutableName);
// The installation model for Chrome places the DLLs in a versioned
// sub-folder one down from the Chrome executable. If we fail to find
// chrome.exe in the current path, try looking one up and launching that
// instead.
if (!file_util::PathExists(cur_path)) {
PathService::Get(base::DIR_MODULE, &cur_path);
cur_path = cur_path.DirName().Append(chrome::kBrowserProcessExecutableName);
}
return cur_path;
}
} // namespace chrome_launcher
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