version_updater_chromeos.cc revision 03b57e008b61dfcb1fbad3aea950ae0e001748b0 
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/ui/webui/help/version_updater_chromeos.h"
6
7#include <cmath>
8
9#include "base/bind.h"
10#include "base/bind_helpers.h"
11#include "chrome/browser/browser_process.h"
12#include "chrome/browser/chromeos/login/startup_utils.h"
13#include "chrome/browser/chromeos/login/wizard_controller.h"
14#include "chrome/browser/chromeos/settings/cros_settings.h"
15#include "chrome/browser/ui/webui/help/help_utils_chromeos.h"
16#include "chromeos/dbus/dbus_thread_manager.h"
17#include "chromeos/dbus/power_manager_client.h"
18#include "chromeos/network/network_handler.h"
19#include "chromeos/network/network_state.h"
20#include "chromeos/network/network_state_handler.h"
21#include "chromeos/settings/cros_settings_names.h"
22#include "components/user_manager/user_manager.h"
23#include "grit/generated_resources.h"
24#include "third_party/cros_system_api/dbus/service_constants.h"
25#include "ui/base/l10n/l10n_util.h"
26
27using chromeos::CrosSettings;
28using chromeos::DBusThreadManager;
29using chromeos::UpdateEngineClient;
30using user_manager::UserManager;
31using chromeos::WizardController;
32
33namespace {
34
35// Network status in the context of device update.
36enum NetworkStatus {
37  // It's allowed in device policy to use current network for update.
38  NETWORK_STATUS_ALLOWED = 0,
39  // It's disallowed in device policy to use current network for update.
40  NETWORK_STATUS_DISALLOWED,
41  // Device is in offline state.
42  NETWORK_STATUS_OFFLINE
43};
44
45const bool kDefaultAutoUpdateDisabled = false;
46
47NetworkStatus GetNetworkStatus(const chromeos::NetworkState* network) {
48  if (!network || !network->IsConnectedState())  // Offline state.
49    return NETWORK_STATUS_OFFLINE;
50
51  // The connection type checking strategy must be the same as the one
52  // used in update engine.
53  if (network->type() == shill::kTypeBluetooth)
54    return NETWORK_STATUS_DISALLOWED;
55  if (network->type() == shill::kTypeCellular &&
56      !help_utils_chromeos::IsUpdateOverCellularAllowed()) {
57    return NETWORK_STATUS_DISALLOWED;
58  }
59  return NETWORK_STATUS_ALLOWED;
60}
61
62// Returns true if auto-update is disabled by the system administrator.
63bool IsAutoUpdateDisabled() {
64  bool update_disabled = kDefaultAutoUpdateDisabled;
65  chromeos::CrosSettings* settings = chromeos::CrosSettings::Get();
66  if (!settings)
67    return update_disabled;
68  const base::Value* update_disabled_value =
69      settings->GetPref(chromeos::kUpdateDisabled);
70  if (update_disabled_value)
71    CHECK(update_disabled_value->GetAsBoolean(&update_disabled));
72  return update_disabled;
73}
74
75}  // namespace
76
77VersionUpdater* VersionUpdater::Create() {
78  return new VersionUpdaterCros;
79}
80
81void VersionUpdaterCros::CheckForUpdate(const StatusCallback& callback) {
82  callback_ = callback;
83
84  if (IsAutoUpdateDisabled()) {
85    callback_.Run(FAILED, 0,
86                  l10n_util::GetStringUTF16(IDS_UPGRADE_DISABLED_BY_POLICY));
87    return;
88  }
89
90  chromeos::NetworkStateHandler* network_state_handler =
91      chromeos::NetworkHandler::Get()->network_state_handler();
92  const chromeos::NetworkState* network =
93      network_state_handler->DefaultNetwork();
94
95  // Don't proceed to update if we're currently offline or connected
96  // to a network for which updates are disallowed.
97  NetworkStatus status = GetNetworkStatus(network);
98  if (status == NETWORK_STATUS_OFFLINE) {
99    callback_.Run(FAILED_OFFLINE, 0,
100                  l10n_util::GetStringUTF16(IDS_UPGRADE_OFFLINE));
101    return;
102  } else if (status == NETWORK_STATUS_DISALLOWED) {
103    base::string16 message =
104        l10n_util::GetStringFUTF16(
105            IDS_UPGRADE_DISALLOWED,
106            help_utils_chromeos::GetConnectionTypeAsUTF16(network->type()));
107    callback_.Run(FAILED_CONNECTION_TYPE_DISALLOWED, 0, message);
108    return;
109  }
110
111  UpdateEngineClient* update_engine_client =
112      DBusThreadManager::Get()->GetUpdateEngineClient();
113  update_engine_client->AddObserver(this);
114
115  // Make sure that libcros is loaded and OOBE is complete.
116  if (!WizardController::default_controller() ||
117      chromeos::StartupUtils::IsDeviceRegistered()) {
118    update_engine_client->RequestUpdateCheck(
119        base::Bind(&VersionUpdaterCros::OnUpdateCheck,
120                   weak_ptr_factory_.GetWeakPtr()));
121  }
122}
123
124void VersionUpdaterCros::RelaunchBrowser() const {
125  DBusThreadManager::Get()->GetPowerManagerClient()->RequestRestart();
126}
127
128void VersionUpdaterCros::SetChannel(const std::string& channel,
129                                    bool is_powerwash_allowed) {
130  if (user_manager::UserManager::Get()->IsCurrentUserOwner()) {
131    // For local owner set the field in the policy blob.
132    CrosSettings::Get()->SetString(chromeos::kReleaseChannel, channel);
133  }
134  DBusThreadManager::Get()->GetUpdateEngineClient()->
135      SetChannel(channel, is_powerwash_allowed);
136}
137
138void VersionUpdaterCros::GetChannel(bool get_current_channel,
139                                    const ChannelCallback& cb) {
140  UpdateEngineClient* update_engine_client =
141      DBusThreadManager::Get()->GetUpdateEngineClient();
142
143  // Request the channel information.
144  update_engine_client->GetChannel(get_current_channel, cb);
145}
146
147VersionUpdaterCros::VersionUpdaterCros()
148    : last_operation_(UpdateEngineClient::UPDATE_STATUS_IDLE),
149      weak_ptr_factory_(this) {
150}
151
152VersionUpdaterCros::~VersionUpdaterCros() {
153  UpdateEngineClient* update_engine_client =
154      DBusThreadManager::Get()->GetUpdateEngineClient();
155  update_engine_client->RemoveObserver(this);
156}
157
158void VersionUpdaterCros::UpdateStatusChanged(
159    const UpdateEngineClient::Status& status) {
160  Status my_status = UPDATED;
161  int progress = 0;
162  base::string16 message;
163
164  // If the updater is currently idle, just show the last operation (unless it
165  // was previously checking for an update -- in that case, the system is
166  // up-to-date now).  See http://crbug.com/120063 for details.
167  UpdateEngineClient::UpdateStatusOperation operation_to_show = status.status;
168  if (status.status == UpdateEngineClient::UPDATE_STATUS_IDLE &&
169      last_operation_ !=
170      UpdateEngineClient::UPDATE_STATUS_CHECKING_FOR_UPDATE) {
171    operation_to_show = last_operation_;
172  }
173
174  switch (operation_to_show) {
175    case UpdateEngineClient::UPDATE_STATUS_ERROR:
176    case UpdateEngineClient::UPDATE_STATUS_REPORTING_ERROR_EVENT:
177    case UpdateEngineClient::UPDATE_STATUS_ATTEMPTING_ROLLBACK:
178      // This path previously used the FAILED status and IDS_UPGRADE_ERROR, but
179      // the update engine reports errors for some conditions that shouldn't
180      // actually be displayed as errors to users: http://crbug.com/146919.
181      // Just use the UPDATED status instead.
182      break;
183    case UpdateEngineClient::UPDATE_STATUS_CHECKING_FOR_UPDATE:
184      my_status = CHECKING;
185      break;
186    case UpdateEngineClient::UPDATE_STATUS_DOWNLOADING:
187      progress = static_cast<int>(round(status.download_progress * 100));
188      // Fall through.
189    case UpdateEngineClient::UPDATE_STATUS_UPDATE_AVAILABLE:
190      my_status = UPDATING;
191      break;
192    case UpdateEngineClient::UPDATE_STATUS_VERIFYING:
193    case UpdateEngineClient::UPDATE_STATUS_FINALIZING:
194      // Once the download is finished, keep the progress at 100; it shouldn't
195      // go down while the status is the same.
196      progress = 100;
197      my_status = UPDATING;
198      break;
199    case UpdateEngineClient::UPDATE_STATUS_UPDATED_NEED_REBOOT:
200      my_status = NEARLY_UPDATED;
201      break;
202    default:
203      break;
204  }
205
206  callback_.Run(my_status, progress, message);
207  last_operation_ = status.status;
208}
209
210void VersionUpdaterCros::OnUpdateCheck(
211    UpdateEngineClient::UpdateCheckResult result) {
212  // If version updating is not implemented, this binary is the most up-to-date
213  // possible with respect to automatic updating.
214  if (result == UpdateEngineClient::UPDATE_RESULT_NOTIMPLEMENTED)
215    callback_.Run(UPDATED, 0, base::string16());
216}
217