chrome/browser/chromeos/login/startup_utils.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 "chrome/browser/chromeos/login/startup_utils.h"
   6
   7 #include "base/bind.h"
   8 #include "base/file_util.h"
   9 #include "base/path_service.h"
  10 #include "base/prefs/pref_registry_simple.h"
  11 #include "base/prefs/pref_service.h"
  12 #include "base/sys_info.h"
  13 #include "base/threading/thread_restrictions.h"
  14 #include "chrome/browser/browser_process.h"
  15 #include "chrome/common/chrome_paths.h"
  16 #include "chrome/common/pref_names.h"
  17 #include "content/public/browser/browser_thread.h"
  18 #include "ui/base/l10n/l10n_util.h"
  19
  20 using content::BrowserThread;
  21
  22 namespace {
  23
  24 // Saves boolean "Local State" preference and forces its persistence to disk.
  25 void SaveBoolPreferenceForced(const char* pref_name, bool value) {
  26   PrefService* prefs = g_browser_process->local_state();
  27   prefs->SetBoolean(pref_name, value);
  28   prefs->CommitPendingWrite();
  29 }
  30
  31 // Saves integer "Local State" preference and forces its persistence to disk.
  32 void SaveIntegerPreferenceForced(const char* pref_name, int value) {
  33   PrefService* prefs = g_browser_process->local_state();
  34   prefs->SetInteger(pref_name, value);
  35   prefs->CommitPendingWrite();
  36 }
  37
  38 // Saves string "Local State" preference and forces its persistence to disk.
  39 void SaveStringPreferenceForced(const char* pref_name,
  40                                 const std::string& value) {
  41   PrefService* prefs = g_browser_process->local_state();
  42   prefs->SetString(pref_name, value);
  43   prefs->CommitPendingWrite();
  44 }
  45
  46 }  // namespace
  47
  48 namespace chromeos {
  49
  50 // static
  51 void StartupUtils::RegisterPrefs(PrefRegistrySimple* registry) {
  52   registry->RegisterBooleanPref(prefs::kOobeComplete, false);
  53   registry->RegisterIntegerPref(prefs::kDeviceRegistered, -1);
  54   registry->RegisterStringPref(prefs::kInitialLocale, "en-US");
  55 }
  56
  57 // static
  58 bool StartupUtils::IsEulaAccepted() {
  59   return g_browser_process->local_state()->GetBoolean(prefs::kEulaAccepted);
  60 }
  61
  62 // static
  63 bool StartupUtils::IsOobeCompleted() {
  64   return g_browser_process->local_state()->GetBoolean(prefs::kOobeComplete);
  65 }
  66
  67 // static
  68 void StartupUtils::MarkEulaAccepted() {
  69   SaveBoolPreferenceForced(prefs::kEulaAccepted, true);
  70 }
  71
  72 // static
  73 void StartupUtils::MarkOobeCompleted() {
  74   SaveBoolPreferenceForced(prefs::kOobeComplete, true);
  75 }
  76
  77 // Returns the path to flag file indicating that both parts of OOBE were
  78 // completed.
  79 // On chrome device, returns /home/chronos/.oobe_completed.
  80 // On Linux desktop, returns {DIR_USER_DATA}/.oobe_completed.
  81 static base::FilePath GetOobeCompleteFlagPath() {
  82   // The constant is defined here so it won't be referenced directly.
  83   const char kOobeCompleteFlagFilePath[] = "/home/chronos/.oobe_completed";
  84
  85   if (base::SysInfo::IsRunningOnChromeOS()) {
  86     return base::FilePath(kOobeCompleteFlagFilePath);
  87   } else {
  88     base::FilePath user_data_dir;
  89     PathService::Get(chrome::DIR_USER_DATA, &user_data_dir);
  90     return user_data_dir.AppendASCII(".oobe_completed");
  91   }
  92 }
  93
  94 static void CreateOobeCompleteFlagFile() {
  95   // Create flag file for boot-time init scripts.
  96   base::FilePath oobe_complete_path = GetOobeCompleteFlagPath();
  97   if (!base::PathExists(oobe_complete_path)) {
  98     FILE* oobe_flag_file = base::OpenFile(oobe_complete_path, "w+b");
  99     if (oobe_flag_file == NULL)
 100       DLOG(WARNING) << oobe_complete_path.value() << " doesn't exist.";
 101     else
 102       base::CloseFile(oobe_flag_file);
 103   }
 104 }
 105
 106 // static
 107 bool StartupUtils::IsDeviceRegistered() {
 108   int value =
 109       g_browser_process->local_state()->GetInteger(prefs::kDeviceRegistered);
 110   if (value > 0) {
 111     // Recreate flag file in case it was lost.
 112     BrowserThread::PostTask(
 113         BrowserThread::FILE,
 114         FROM_HERE,
 115         base::Bind(&CreateOobeCompleteFlagFile));
 116     return true;
 117   } else if (value == 0) {
 118     return false;
 119   } else {
 120     // Pref is not set. For compatibility check flag file. It causes blocking
 121     // IO on UI thread. But it's required for update from old versions.
 122     base::ThreadRestrictions::ScopedAllowIO allow_io;
 123     base::FilePath oobe_complete_flag_file_path = GetOobeCompleteFlagPath();
 124     bool file_exists = base::PathExists(oobe_complete_flag_file_path);
 125     SaveIntegerPreferenceForced(prefs::kDeviceRegistered, file_exists ? 1 : 0);
 126     return file_exists;
 127   }
 128 }
 129
 130 // static
 131 void StartupUtils::MarkDeviceRegistered() {
 132   SaveIntegerPreferenceForced(prefs::kDeviceRegistered, 1);
 133   BrowserThread::PostTask(
 134       BrowserThread::FILE,
 135       FROM_HERE,
 136       base::Bind(&CreateOobeCompleteFlagFile));
 137 }
 138
 139 // static
 140 std::string StartupUtils::GetInitialLocale() {
 141   std::string locale =
 142       g_browser_process->local_state()->GetString(prefs::kInitialLocale);
 143   if (!l10n_util::IsValidLocaleSyntax(locale))
 144     locale = "en-US";
 145   return locale;
 146 }
 147
 148 // static
 149 void StartupUtils::SetInitialLocale(const std::string& locale) {
 150   if (l10n_util::IsValidLocaleSyntax(locale))
 151     SaveStringPreferenceForced(prefs::kInitialLocale, locale);
 152   else
 153     NOTREACHED();
 154 }
 155
 156 }  // namespace chromeos