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      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/version_info_updater.h"
      6 
      7 #include <vector>
      8 
      9 #include "base/bind.h"
     10 #include "base/bind_helpers.h"
     11 #include "base/strings/string_util.h"
     12 #include "base/strings/stringprintf.h"
     13 #include "base/strings/utf_string_conversions.h"
     14 #include "base/sys_info.h"
     15 #include "chrome/browser/browser_process.h"
     16 #include "chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h"
     17 #include "chrome/browser/chromeos/settings/cros_settings.h"
     18 #include "chrome/browser/policy/browser_policy_connector.h"
     19 #include "chrome/common/chrome_version_info.h"
     20 #include "chromeos/settings/cros_settings_names.h"
     21 #include "grit/chromium_strings.h"
     22 #include "grit/generated_resources.h"
     23 #include "grit/theme_resources.h"
     24 #include "ui/base/l10n/l10n_util.h"
     25 #include "ui/base/resource/resource_bundle.h"
     26 
     27 namespace chromeos {
     28 
     29 namespace {
     30 
     31 const char* kReportingFlags[] = {
     32   chromeos::kReportDeviceVersionInfo,
     33   chromeos::kReportDeviceActivityTimes,
     34   chromeos::kReportDeviceBootMode,
     35   chromeos::kReportDeviceLocation,
     36 };
     37 
     38 }
     39 
     40 ///////////////////////////////////////////////////////////////////////////////
     41 // VersionInfoUpdater public:
     42 
     43 VersionInfoUpdater::VersionInfoUpdater(Delegate* delegate)
     44     : cros_settings_(chromeos::CrosSettings::Get()),
     45       delegate_(delegate),
     46       weak_pointer_factory_(this) {
     47 }
     48 
     49 VersionInfoUpdater::~VersionInfoUpdater() {
     50   policy::DeviceCloudPolicyManagerChromeOS* policy_manager =
     51       g_browser_process->browser_policy_connector()->
     52           GetDeviceCloudPolicyManager();
     53   if (policy_manager)
     54     policy_manager->core()->store()->RemoveObserver(this);
     55 }
     56 
     57 void VersionInfoUpdater::StartUpdate(bool is_official_build) {
     58   if (base::SysInfo::IsRunningOnChromeOS()) {
     59     version_loader_.GetVersion(
     60         is_official_build ? VersionLoader::VERSION_SHORT_WITH_DATE
     61                           : VersionLoader::VERSION_FULL,
     62         base::Bind(&VersionInfoUpdater::OnVersion,
     63                    weak_pointer_factory_.GetWeakPtr()),
     64         &tracker_);
     65   } else {
     66     UpdateVersionLabel();
     67   }
     68 
     69   policy::DeviceCloudPolicyManagerChromeOS* policy_manager =
     70       g_browser_process->browser_policy_connector()->
     71           GetDeviceCloudPolicyManager();
     72   if (policy_manager) {
     73     policy_manager->core()->store()->AddObserver(this);
     74 
     75     // Ensure that we have up-to-date enterprise info in case enterprise policy
     76     // is already fetched and has finished initialization.
     77     UpdateEnterpriseInfo();
     78   }
     79 
     80   // Watch for changes to the reporting flags.
     81   base::Closure callback =
     82       base::Bind(&VersionInfoUpdater::UpdateEnterpriseInfo,
     83                  base::Unretained(this));
     84   for (unsigned int i = 0; i < arraysize(kReportingFlags); ++i) {
     85     subscriptions_.push_back(
     86         cros_settings_->AddSettingsObserver(kReportingFlags[i],
     87                                             callback).release());
     88   }
     89 }
     90 
     91 void VersionInfoUpdater::UpdateVersionLabel() {
     92   if (version_text_.empty())
     93     return;
     94 
     95   chrome::VersionInfo version_info;
     96   std::string label_text = l10n_util::GetStringFUTF8(
     97       IDS_LOGIN_VERSION_LABEL_FORMAT,
     98       l10n_util::GetStringUTF16(IDS_PRODUCT_NAME),
     99       UTF8ToUTF16(version_info.Version()),
    100       UTF8ToUTF16(version_text_));
    101 
    102   // Workaround over incorrect width calculation in old fonts.
    103   // TODO(glotov): remove the following line when new fonts are used.
    104   label_text += ' ';
    105 
    106   if (delegate_)
    107     delegate_->OnOSVersionLabelTextUpdated(label_text);
    108 }
    109 
    110 void VersionInfoUpdater::UpdateEnterpriseInfo() {
    111   SetEnterpriseInfo(
    112       g_browser_process->browser_policy_connector()->GetEnterpriseDomain());
    113 }
    114 
    115 void VersionInfoUpdater::SetEnterpriseInfo(const std::string& domain_name) {
    116   // Update the notification about device status reporting.
    117   if (delegate_ && !domain_name.empty()) {
    118     std::string enterprise_info;
    119     enterprise_info = l10n_util::GetStringFUTF8(
    120         IDS_DEVICE_OWNED_BY_NOTICE,
    121         UTF8ToUTF16(domain_name));
    122     delegate_->OnEnterpriseInfoUpdated(enterprise_info);
    123   }
    124 }
    125 
    126 void VersionInfoUpdater::OnVersion(const std::string& version) {
    127   version_text_ = version;
    128   UpdateVersionLabel();
    129 }
    130 
    131 void VersionInfoUpdater::OnStoreLoaded(policy::CloudPolicyStore* store) {
    132   UpdateEnterpriseInfo();
    133 }
    134 
    135 void VersionInfoUpdater::OnStoreError(policy::CloudPolicyStore* store) {
    136   UpdateEnterpriseInfo();
    137 }
    138 
    139 }  // namespace chromeos
    140