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      1 // Copyright (c) 2013 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 "chromeos/login/login_state.h"
      6 
      7 #include "base/command_line.h"
      8 #include "base/logging.h"
      9 #include "base/sys_info.h"
     10 #include "chromeos/chromeos_switches.h"
     11 
     12 namespace chromeos {
     13 
     14 namespace {
     15 
     16 // When running a Chrome OS build outside of a device (i.e. on a developer's
     17 // workstation) and not running as login-manager, pretend like we're always
     18 // logged in.
     19 bool AlwaysLoggedInByDefault() {
     20   return !base::SysInfo::IsRunningOnChromeOS() &&
     21       !CommandLine::ForCurrentProcess()->HasSwitch(switches::kLoginManager);
     22 }
     23 
     24 }  // namespace
     25 
     26 static LoginState* g_login_state = NULL;
     27 
     28 // static
     29 void LoginState::Initialize() {
     30   CHECK(!g_login_state);
     31   g_login_state = new LoginState();
     32 }
     33 
     34 // static
     35 void LoginState::Shutdown() {
     36   CHECK(g_login_state);
     37   delete g_login_state;
     38   g_login_state = NULL;
     39 }
     40 
     41 // static
     42 LoginState* LoginState::Get() {
     43   CHECK(g_login_state) << "LoginState::Get() called before Initialize()";
     44   return g_login_state;
     45 }
     46 
     47 // static
     48 bool LoginState::IsInitialized() {
     49   return g_login_state;
     50 }
     51 
     52 void LoginState::AddObserver(Observer* observer) {
     53   observer_list_.AddObserver(observer);
     54 }
     55 
     56 void LoginState::RemoveObserver(Observer* observer) {
     57   observer_list_.RemoveObserver(observer);
     58 }
     59 
     60 void LoginState::SetLoggedInState(LoggedInState state,
     61                                   LoggedInUserType type) {
     62   if (state == logged_in_state_ && type == logged_in_user_type_)
     63     return;
     64   VLOG(1) << "LoggedInState: " << state << " UserType: " << type;
     65   logged_in_state_ = state;
     66   logged_in_user_type_ = type;
     67   NotifyObservers();
     68 }
     69 
     70 LoginState::LoggedInUserType LoginState::GetLoggedInUserType() const {
     71   return logged_in_user_type_;
     72 }
     73 
     74 bool LoginState::IsUserLoggedIn() const {
     75   if (always_logged_in_)
     76     return true;
     77   return logged_in_state_ == LOGGED_IN_ACTIVE;
     78 }
     79 
     80 bool LoginState::IsInSafeMode() const {
     81   DCHECK(!always_logged_in_ || logged_in_state_ != LOGGED_IN_SAFE_MODE);
     82   return logged_in_state_ == LOGGED_IN_SAFE_MODE;
     83 }
     84 
     85 bool LoginState::IsGuestUser() const {
     86   if (!IsUserLoggedIn())
     87     return false;
     88   switch (logged_in_user_type_) {
     89     case LOGGED_IN_USER_NONE:
     90     case LOGGED_IN_USER_REGULAR:
     91     case LOGGED_IN_USER_OWNER:
     92     case LOGGED_IN_USER_LOCALLY_MANAGED:
     93     case LOGGED_IN_USER_KIOSK_APP:
     94       return false;
     95     case LOGGED_IN_USER_GUEST:
     96     case LOGGED_IN_USER_RETAIL_MODE:
     97     case LOGGED_IN_USER_PUBLIC_ACCOUNT:
     98       return true;
     99   }
    100   NOTREACHED();
    101   return false;
    102 }
    103 
    104 bool LoginState::IsUserAuthenticated() const {
    105   LoggedInUserType type = logged_in_user_type_;
    106   return type == chromeos::LoginState::LOGGED_IN_USER_REGULAR ||
    107       type == chromeos::LoginState::LOGGED_IN_USER_OWNER ||
    108       type == chromeos::LoginState::LOGGED_IN_USER_LOCALLY_MANAGED;
    109 }
    110 
    111 bool LoginState::IsUserGaiaAuthenticated() const {
    112   LoggedInUserType type = logged_in_user_type_;
    113   return type == chromeos::LoginState::LOGGED_IN_USER_REGULAR ||
    114       type == chromeos::LoginState::LOGGED_IN_USER_OWNER;
    115 }
    116 
    117 // Private methods
    118 
    119 LoginState::LoginState() : logged_in_state_(LOGGED_IN_OOBE),
    120                            logged_in_user_type_(LOGGED_IN_USER_NONE),
    121                            always_logged_in_(AlwaysLoggedInByDefault()) {
    122 }
    123 
    124 LoginState::~LoginState() {
    125 }
    126 
    127 void LoginState::NotifyObservers() {
    128   FOR_EACH_OBSERVER(LoginState::Observer, observer_list_,
    129                     LoggedInStateChanged());
    130 }
    131 
    132 }  // namespace chromeos
    133