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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/app/chrome_main.h"
#include "base/command_line.h"
#include "base/file_path.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/utf_string_conversions.h"
#include "base/win/registry.h"
#include "chrome/browser/policy/policy_path_parser.h"
#include "chrome/common/chrome_switches.h"
#include "policy/policy_constants.h"
namespace {
// Checks if the registry key exists in the given hive and expands any
// variables in the string.
bool LoadUserDataDirPolicyFromRegistry(HKEY hive,
const std::wstring& key_name,
FilePath* user_data_dir) {
std::wstring value;
base::win::RegKey hklm_policy_key(hive, policy::kRegistrySubKey, KEY_READ);
if (hklm_policy_key.ReadValue(key_name.c_str(), &value) == ERROR_SUCCESS) {
*user_data_dir = FilePath(policy::path_parser::ExpandPathVariables(value));
return true;
}
return false;
}
} // namespace
namespace chrome_main {
void CheckUserDataDirPolicy(FilePath* user_data_dir) {
DCHECK(user_data_dir);
// We are running as Chrome Frame if we were invoked with user-data-dir,
// chrome-frame, and automation-channel switches.
CommandLine* command_line = CommandLine::ForCurrentProcess();
const bool is_chrome_frame =
!user_data_dir->empty() &&
command_line->HasSwitch(switches::kChromeFrame) &&
command_line->HasSwitch(switches::kAutomationClientChannelID);
// In the case of Chrome Frame, the last path component of the user-data-dir
// provided on the command line must be preserved since it is specific to
// CF's host.
FilePath cf_host_dir;
if (is_chrome_frame)
cf_host_dir = user_data_dir->BaseName();
// Policy from the HKLM hive has precedence over HKCU so if we have one here
// we don't have to try to load HKCU.
const char* key_name_ascii = (is_chrome_frame ? policy::key::kGCFUserDataDir :
policy::key::kUserDataDir);
std::wstring key_name(ASCIIToWide(key_name_ascii));
if (LoadUserDataDirPolicyFromRegistry(HKEY_LOCAL_MACHINE, key_name,
user_data_dir) ||
LoadUserDataDirPolicyFromRegistry(HKEY_CURRENT_USER, key_name,
user_data_dir)) {
// A Group Policy value was loaded. Append the Chrome Frame host directory
// if relevant.
if (is_chrome_frame)
*user_data_dir = user_data_dir->Append(cf_host_dir);
}
}
} // namespace chrome_main
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