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      1 // Copyright (c) 2010 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 "chrome/installer/util/google_update_settings.h"
      6 
      7 #include "base/file_util.h"
      8 #include "base/path_service.h"
      9 #include "base/string_util.h"
     10 #include "chrome/common/chrome_paths.h"
     11 
     12 namespace google_update {
     13 std::string posix_guid;
     14 }
     15 
     16 // File name used in the user data dir to indicate consent.
     17 static const char kConsentToSendStats[] = "Consent To Send Stats";
     18 
     19 // static
     20 bool GoogleUpdateSettings::GetCollectStatsConsent() {
     21   FilePath consent_file;
     22   PathService::Get(chrome::DIR_USER_DATA, &consent_file);
     23   consent_file = consent_file.Append(kConsentToSendStats);
     24   std::string tmp_guid;
     25   bool consented = file_util::ReadFileToString(consent_file, &tmp_guid);
     26   if (consented)
     27     google_update::posix_guid.assign(tmp_guid);
     28   return consented;
     29 }
     30 
     31 // static
     32 bool GoogleUpdateSettings::SetCollectStatsConsent(bool consented) {
     33   FilePath consent_dir;
     34   PathService::Get(chrome::DIR_USER_DATA, &consent_dir);
     35   if (!file_util::DirectoryExists(consent_dir))
     36     return false;
     37 
     38   FilePath consent_file = consent_dir.AppendASCII(kConsentToSendStats);
     39   if (consented) {
     40     if ((!file_util::PathExists(consent_file)) ||
     41         (file_util::PathExists(consent_file) &&
     42          !google_update::posix_guid.empty())) {
     43       const char* c_str = google_update::posix_guid.c_str();
     44       int size = google_update::posix_guid.size();
     45       return file_util::WriteFile(consent_file, c_str, size) == size;
     46     }
     47   } else {
     48     google_update::posix_guid.clear();
     49     return file_util::Delete(consent_file, false);
     50   }
     51   return true;
     52 }
     53 
     54 bool GoogleUpdateSettings::SetMetricsId(const std::wstring& client_id) {
     55   // Make sure that user has consented to send crashes.
     56   FilePath consent_dir;
     57   PathService::Get(chrome::DIR_USER_DATA, &consent_dir);
     58   if (!file_util::DirectoryExists(consent_dir) ||
     59       !GoogleUpdateSettings::GetCollectStatsConsent())
     60     return false;
     61 
     62   // Since user has consented, write the metrics id to the file.
     63   google_update::posix_guid = WideToASCII(client_id);
     64   return GoogleUpdateSettings::SetCollectStatsConsent(true);
     65 }
     66 
     67 // GetLastRunTime and SetLastRunTime are not implemented for posix. Their
     68 // current return values signal failure which the caller is designed to
     69 // handle.
     70 
     71 // static
     72 int GoogleUpdateSettings::GetLastRunTime() {
     73   return -1;
     74 }
     75 
     76 // static
     77 bool GoogleUpdateSettings::SetLastRunTime() {
     78   return false;
     79 }
     80