1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include <pwd.h> 6 7 #include "chrome/browser/policy/policy_path_parser.h" 8 9 #include "base/logging.h" 10 11 namespace policy { 12 13 namespace path_parser { 14 15 const char* kMachineNamePolicyVarName = "${machine_name}"; 16 const char* kUserNamePolicyVarName = "${user_name}"; 17 18 // Replaces all variable occurrences in the policy string with the respective 19 // system settings values. ExpandPathVariables(const FilePath::StringType & untranslated_string)20FilePath::StringType ExpandPathVariables( 21 const FilePath::StringType& untranslated_string) { 22 FilePath::StringType result(untranslated_string); 23 // Translate two special variables ${user_name} and ${machine_name} 24 size_t position = result.find(kUserNamePolicyVarName); 25 if (position != std::string::npos) { 26 struct passwd* user = getpwuid(geteuid()); 27 if (user) { 28 result.replace(position, strlen(kUserNamePolicyVarName), user->pw_name); 29 } else { 30 LOG(ERROR) << "Username variable can not be resolved. "; 31 } 32 } 33 position = result.find(kMachineNamePolicyVarName); 34 if (position != std::string::npos) { 35 char machinename[255]; 36 if (gethostname(machinename, 255) == 0) { 37 result.replace(position, strlen(kMachineNamePolicyVarName), machinename); 38 } else { 39 LOG(ERROR) << "Machine name variable can not be resolved."; 40 } 41 } 42 return result; 43 } 44 45 } // namespace path_parser 46 47 } // namespace policy 48