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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 <pwd.h>
#include "chrome/browser/policy/policy_path_parser.h"
#include "base/logging.h"
namespace policy {
namespace path_parser {
const char* kMachineNamePolicyVarName = "${machine_name}";
const char* kUserNamePolicyVarName = "${user_name}";
// Replaces all variable occurrences 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] == '"' && result[result.length() - 1] == '"') ||
(result[0] == '\'' && result[result.length() - 1] == '\''))) {
// Strip first and last char which should be matching quotes now.
result = result.substr(1, result.length() - 2);
}
// Translate two special variables ${user_name} and ${machine_name}
size_t position = result.find(kUserNamePolicyVarName);
if (position != std::string::npos) {
struct passwd* user = getpwuid(geteuid());
if (user) {
result.replace(position, strlen(kUserNamePolicyVarName), user->pw_name);
} else {
LOG(ERROR) << "Username variable can not be resolved. ";
}
}
position = result.find(kMachineNamePolicyVarName);
if (position != std::string::npos) {
char machinename[255];
if (gethostname(machinename, 255) == 0) {
result.replace(position, strlen(kMachineNamePolicyVarName), machinename);
} else {
LOG(ERROR) << "Machine name variable can not be resolved.";
}
}
return result;
}
} // namespace path_parser
} // namespace policy
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