chrome/browser/policy/policy_path_parser_linux.cc

   1 // Copyright (c) 2012 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 #include <sys/types.h>
   7 #include <unistd.h>
   8
   9 #include "chrome/browser/policy/policy_path_parser.h"
  10
  11 #include "base/logging.h"
  12
  13 namespace policy {
  14
  15 namespace path_parser {
  16
  17 const char* kMachineNamePolicyVarName = "${machine_name}";
  18 const char* kUserNamePolicyVarName = "${user_name}";
  19
  20 // Replaces all variable occurrences in the policy string with the respective
  21 // system settings values.
  22 base::FilePath::StringType ExpandPathVariables(
  23     const base::FilePath::StringType& untranslated_string) {
  24   base::FilePath::StringType result(untranslated_string);
  25   if (result.length() == 0)
  26     return result;
  27   // Sanitize quotes in case of any around the whole string.
  28   if (result.length() > 1 &&
  29       ((result[0] == '"' && result[result.length() - 1] == '"') ||
  30       (result[0] == '\'' && result[result.length() - 1] == '\''))) {
  31     // Strip first and last char which should be matching quotes now.
  32     result = result.substr(1, result.length() - 2);
  33   }
  34   // Translate two special variables ${user_name} and ${machine_name}
  35   size_t position = result.find(kUserNamePolicyVarName);
  36   if (position != std::string::npos) {
  37     struct passwd* user = getpwuid(geteuid());
  38     if (user) {
  39       result.replace(position, strlen(kUserNamePolicyVarName), user->pw_name);
  40     } else {
  41       LOG(ERROR) << "Username variable can not be resolved. ";
  42     }
  43   }
  44   position = result.find(kMachineNamePolicyVarName);
  45   if (position != std::string::npos) {
  46     char machinename[255];
  47     if (gethostname(machinename, 255) == 0) {
  48       result.replace(position, strlen(kMachineNamePolicyVarName), machinename);
  49     } else {
  50       LOG(ERROR) << "Machine name variable can not be resolved.";
  51     }
  52   }
  53   return result;
  54 }
  55
  56 void CheckUserDataDirPolicy(base::FilePath* user_data_dir) {
  57   // This function is not implemented in Linux because we don't support the
  58   // policy on this platform.
  59   NOTREACHED();
  60 }
  61
  62 }  // namespace path_parser
  63
  64 }  // namespace policy