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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/browser/chromeos/metrics_cros_settings_provider.h"
      6 
      7 #include "base/string_util.h"
      8 #include "base/threading/thread_restrictions.h"
      9 #include "base/values.h"
     10 #include "chrome/browser/chromeos/cros_settings.h"
     11 #include "chrome/browser/chromeos/cros_settings_names.h"
     12 #include "chrome/browser/chromeos/login/user_manager.h"
     13 #include "chrome/browser/ui/options/options_util.h"
     14 #include "chrome/installer/util/google_update_settings.h"
     15 
     16 #if defined(USE_LINUX_BREAKPAD)
     17 #include "chrome/app/breakpad_linux.h"
     18 #endif
     19 
     20 namespace chromeos {
     21 
     22 void MetricsCrosSettingsProvider::DoSet(const std::string& path,
     23                                         Value* value) {
     24   DCHECK(path == kStatsReportingPref);
     25   bool enabled = false;
     26   CHECK(value->GetAsBoolean(&enabled));
     27   if (SetMetricsStatus(enabled)) {
     28     CrosSettings::Get()->FireObservers(path.c_str());
     29   }
     30 }
     31 
     32 bool MetricsCrosSettingsProvider::Get(const std::string& path,
     33                                       Value** value) const {
     34   DCHECK(path == kStatsReportingPref);
     35   *value = Value::CreateBooleanValue(GetMetricsStatus());
     36   return true;
     37 }
     38 
     39 // static
     40 bool MetricsCrosSettingsProvider::SetMetricsStatus(bool enabled) {
     41   // We must be not logged in (on EULA page) or logged is as an owner to be able
     42   // to modify the setting.
     43   UserManager *user = UserManager::Get();
     44   if (user->user_is_logged_in() && !user->current_user_is_owner())
     45     return false;
     46   VLOG(1) << "Setting cros stats/crash metric reporting to " << enabled;
     47   bool collect_stats_consent = false;
     48   {
     49     // Loading consent file state causes us to do blocking IO on UI thread.
     50     // Temporarily allow it until we fix http://crbug.com/62626
     51     base::ThreadRestrictions::ScopedAllowIO allow_io;
     52     collect_stats_consent = GoogleUpdateSettings::GetCollectStatsConsent();
     53   }
     54   if (enabled != collect_stats_consent) {
     55     bool new_enabled = OptionsUtil::ResolveMetricsReportingEnabled(enabled);
     56 #if defined(USE_LINUX_BREAKPAD)
     57     if (new_enabled)
     58       InitCrashReporter();
     59     // Else, if (!new_enabled), we should have turned crash reporting off
     60     // here, but there is no API for that currently (while we use
     61     // BreakPad). But this is not a big deal: crash reporting will be off
     62     // after reboot for the current process while other Chrome processes
     63     // will start when the setting is already set up. Other ChromeOS
     64     // processes does not use BreakPad.
     65 #endif
     66     return new_enabled == enabled;
     67   }
     68   return false;
     69 }
     70 
     71 // static
     72 bool MetricsCrosSettingsProvider::GetMetricsStatus() {
     73   // Loading consent file state causes us to do blocking IO on UI thread.
     74   // Temporarily allow it until we fix http://crbug.com/62626
     75   base::ThreadRestrictions::ScopedAllowIO allow_io;
     76   return GoogleUpdateSettings::GetCollectStatsConsent();
     77 }
     78 
     79 bool MetricsCrosSettingsProvider::HandlesSetting(const std::string& path) {
     80   return ::StartsWithASCII(path, kStatsReportingPref, true);
     81 }
     82 
     83 };  // namespace chromeos
     84