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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 <shlobj.h>
#include "chrome/browser/policy/policy_path_parser.h"
#include "base/memory/scoped_ptr.h"
namespace policy {
namespace path_parser {
const WCHAR* kMachineNamePolicyVarName = L"${machine_name}";
const WCHAR* kUserNamePolicyVarName = L"${user_name}";
const WCHAR* kWinDocumentsFolderVarName = L"${documents}";
const WCHAR* kWinLocalAppDataFolderVarName = L"${local_app_data}";
const WCHAR* kWinRoamingAppDataFolderVarName = L"${roaming_app_data}";
const WCHAR* kWinProfileFolderVarName = L"${profile}";
const WCHAR* kWinProgramDataFolderVarName = L"${global_app_data}";
const WCHAR* kWinProgramFilesFolderVarName = L"${program_files}";
const WCHAR* kWinWindowsFolderVarName = L"${windows}";
struct WinFolderNamesToCSIDLMapping {
const WCHAR* name;
int id;
};
// Mapping from variable names to Windows CSIDL ids.
const WinFolderNamesToCSIDLMapping win_folder_mapping[] = {
{ kWinWindowsFolderVarName, CSIDL_WINDOWS},
{ kWinProgramFilesFolderVarName, CSIDL_PROGRAM_FILES},
{ kWinProgramDataFolderVarName, CSIDL_COMMON_APPDATA},
{ kWinProfileFolderVarName, CSIDL_PROFILE},
{ kWinLocalAppDataFolderVarName, CSIDL_LOCAL_APPDATA},
{ kWinRoamingAppDataFolderVarName, CSIDL_APPDATA},
{ kWinDocumentsFolderVarName, CSIDL_PERSONAL}
};
// Replaces all variable occurances in the policy string with the respective
// system settings values.
FilePath::StringType ExpandPathVariables(
const FilePath::StringType& untranslated_string) {
FilePath::StringType result(untranslated_string);
if (result.length() == 0)
return result;
// Sanitize quotes in case of any around the whole string.
if (result.length() > 1 &&
((result[0] == L'"' && result[result.length() - 1] == L'"') ||
(result[0] == L'\'' && result[result.length() - 1] == L'\''))) {
// Strip first and last char which should be matching quotes now.
result = result.substr(1, result.length() - 2);
}
// First translate all path variables we recognize.
for (int i = 0; i < arraysize(win_folder_mapping); ++i) {
size_t position = result.find(win_folder_mapping[i].name);
if (position != std::wstring::npos) {
WCHAR path[MAX_PATH];
::SHGetSpecialFolderPath(0, path, win_folder_mapping[i].id, false);
std::wstring path_string(path);
result.replace(position, wcslen(win_folder_mapping[i].name), path_string);
}
}
// Next translate two speacial variables ${user_name} and ${machine_name}
size_t position = result.find(kUserNamePolicyVarName);
if (position != std::wstring::npos) {
DWORD return_length = 0;
::GetUserName(NULL, &return_length);
if (return_length != 0) {
scoped_array<WCHAR> username(new WCHAR[return_length]);
::GetUserName(username.get(), &return_length);
std::wstring username_string(username.get());
result.replace(position, wcslen(kUserNamePolicyVarName), username_string);
}
}
position = result.find(kMachineNamePolicyVarName);
if (position != std::wstring::npos) {
DWORD return_length = 0;
::GetComputerNameEx(ComputerNamePhysicalDnsHostname, NULL, &return_length);
if (return_length != 0) {
scoped_array<WCHAR> machinename(new WCHAR[return_length]);
::GetComputerNameEx(ComputerNamePhysicalDnsHostname,
machinename.get(), &return_length);
std::wstring machinename_string(machinename.get());
result.replace(
position, wcslen(kMachineNamePolicyVarName), machinename_string);
}
}
return result;
}
} // namespace path_parser
} // namespace policy
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