chrome/browser/google/google_update_settings_posix.cc

   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 "chrome/installer/util/google_update_settings.h"
   6
   7 #include "base/file_util.h"
   8 #include "base/path_service.h"
   9 #include "base/strings/string_util.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "chrome/common/chrome_paths.h"
  12
  13 namespace google_update {
  14
  15 static std::string& posix_guid() {
  16   CR_DEFINE_STATIC_LOCAL(std::string, guid, ());
  17   return guid;
  18 }
  19
  20 }  // namespace google_update
  21
  22 // File name used in the user data dir to indicate consent.
  23 static const char kConsentToSendStats[] = "Consent To Send Stats";
  24
  25 // static
  26 bool GoogleUpdateSettings::GetCollectStatsConsent() {
  27   base::FilePath consent_file;
  28   PathService::Get(chrome::DIR_USER_DATA, &consent_file);
  29   consent_file = consent_file.Append(kConsentToSendStats);
  30   std::string tmp_guid;
  31   bool consented = base::ReadFileToString(consent_file, &tmp_guid);
  32   if (consented)
  33     google_update::posix_guid().assign(tmp_guid);
  34   return consented;
  35 }
  36
  37 // static
  38 bool GoogleUpdateSettings::SetCollectStatsConsent(bool consented) {
  39   base::FilePath consent_dir;
  40   PathService::Get(chrome::DIR_USER_DATA, &consent_dir);
  41   if (!base::DirectoryExists(consent_dir))
  42     return false;
  43
  44   base::FilePath consent_file = consent_dir.AppendASCII(kConsentToSendStats);
  45   if (consented) {
  46     if ((!base::PathExists(consent_file)) ||
  47         (base::PathExists(consent_file) &&
  48          !google_update::posix_guid().empty())) {
  49       const char* c_str = google_update::posix_guid().c_str();
  50       int size = google_update::posix_guid().size();
  51       return file_util::WriteFile(consent_file, c_str, size) == size;
  52     }
  53   } else {
  54     google_update::posix_guid().clear();
  55     return base::DeleteFile(consent_file, false);
  56   }
  57   return true;
  58 }
  59
  60 // static
  61 bool GoogleUpdateSettings::GetMetricsId(std::string* metrics_id) {
  62   *metrics_id = google_update::posix_guid();
  63   return true;
  64 }
  65
  66 // static
  67 bool GoogleUpdateSettings::SetMetricsId(const std::string& client_id) {
  68   // Make sure that user has consented to send crashes.
  69   base::FilePath consent_dir;
  70   PathService::Get(chrome::DIR_USER_DATA, &consent_dir);
  71   if (!base::DirectoryExists(consent_dir) ||
  72       !GoogleUpdateSettings::GetCollectStatsConsent()) {
  73     return false;
  74   }
  75
  76   // Since user has consented, write the metrics id to the file.
  77   google_update::posix_guid() = client_id;
  78   return GoogleUpdateSettings::SetCollectStatsConsent(true);
  79 }
  80
  81 // GetLastRunTime and SetLastRunTime are not implemented for posix. Their
  82 // current return values signal failure which the caller is designed to
  83 // handle.
  84
  85 // static
  86 int GoogleUpdateSettings::GetLastRunTime() {
  87   return -1;
  88 }
  89
  90 // static
  91 bool GoogleUpdateSettings::SetLastRunTime() {
  92   return false;
  93 }