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      1 // Copyright 2014 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 "components/signin/core/browser/signin_manager_base.h"
      6 
      7 #include <string>
      8 #include <vector>
      9 
     10 #include "base/command_line.h"
     11 #include "base/memory/ref_counted.h"
     12 #include "base/prefs/pref_service.h"
     13 #include "base/strings/string_split.h"
     14 #include "base/strings/string_util.h"
     15 #include "base/strings/utf_string_conversions.h"
     16 #include "components/signin/core/browser/signin_client.h"
     17 #include "components/signin/core/common/signin_pref_names.h"
     18 #include "components/signin/core/common/signin_switches.h"
     19 #include "google_apis/gaia/gaia_auth_util.h"
     20 #include "google_apis/gaia/gaia_constants.h"
     21 #include "google_apis/gaia/gaia_urls.h"
     22 
     23 using namespace signin_internals_util;
     24 
     25 SigninManagerBase::SigninManagerBase(SigninClient* client)
     26     : client_(client), initialized_(false), weak_pointer_factory_(this) {}
     27 
     28 SigninManagerBase::~SigninManagerBase() {}
     29 
     30 void SigninManagerBase::Initialize(PrefService* local_state) {
     31   // Should never call Initialize() twice.
     32   DCHECK(!IsInitialized());
     33   initialized_ = true;
     34 
     35   // If the user is clearing the token service from the command line, then
     36   // clear their login info also (not valid to be logged in without any
     37   // tokens).
     38   CommandLine* cmd_line = CommandLine::ForCurrentProcess();
     39   if (cmd_line->HasSwitch(switches::kClearTokenService))
     40     client_->GetPrefs()->ClearPref(prefs::kGoogleServicesUsername);
     41 
     42   std::string user =
     43       client_->GetPrefs()->GetString(prefs::kGoogleServicesUsername);
     44   if (!user.empty())
     45     SetAuthenticatedUsername(user);
     46 }
     47 
     48 bool SigninManagerBase::IsInitialized() const { return initialized_; }
     49 
     50 bool SigninManagerBase::IsSigninAllowed() const {
     51   return client_->GetPrefs()->GetBoolean(prefs::kSigninAllowed);
     52 }
     53 
     54 const std::string& SigninManagerBase::GetAuthenticatedUsername() const {
     55   return authenticated_username_;
     56 }
     57 
     58 const std::string& SigninManagerBase::GetAuthenticatedAccountId() const {
     59   return GetAuthenticatedUsername();
     60 }
     61 
     62 void SigninManagerBase::SetAuthenticatedUsername(const std::string& username) {
     63   if (!authenticated_username_.empty()) {
     64     DLOG_IF(ERROR, !gaia::AreEmailsSame(username, authenticated_username_))
     65         << "Tried to change the authenticated username to something different: "
     66         << "Current: " << authenticated_username_ << ", New: " << username;
     67 
     68 #if defined(OS_IOS)
     69     // Prior to M26, chrome on iOS did not normalize the email before setting
     70     // it in SigninManager.  If the emails are the same as given by
     71     // gaia::AreEmailsSame() but not the same as given by std::string::op==(),
     72     // make sure to set the authenticated name below.
     73     if (!gaia::AreEmailsSame(username, authenticated_username_) ||
     74         username == authenticated_username_) {
     75       return;
     76     }
     77 #else
     78     return;
     79 #endif
     80   }
     81   std::string pref_username =
     82       client_->GetPrefs()->GetString(prefs::kGoogleServicesUsername);
     83   DCHECK(pref_username.empty() || gaia::AreEmailsSame(username, pref_username))
     84       << "username: " << username << "; pref_username: " << pref_username;
     85   authenticated_username_ = username;
     86   client_->GetPrefs()->SetString(prefs::kGoogleServicesUsername, username);
     87   NotifyDiagnosticsObservers(USERNAME, username);
     88 
     89   // Go ahead and update the last signed in username here as well. Once a
     90   // user is signed in the two preferences should match. Doing it here as
     91   // opposed to on signin allows us to catch the upgrade scenario.
     92   client_->GetPrefs()->SetString(prefs::kGoogleServicesLastUsername, username);
     93 }
     94 
     95 void SigninManagerBase::clear_authenticated_username() {
     96   authenticated_username_.clear();
     97 }
     98 
     99 bool SigninManagerBase::AuthInProgress() const {
    100   // SigninManagerBase never kicks off auth processes itself.
    101   return false;
    102 }
    103 
    104 void SigninManagerBase::Shutdown() {}
    105 
    106 void SigninManagerBase::AddObserver(Observer* observer) {
    107   observer_list_.AddObserver(observer);
    108 }
    109 
    110 void SigninManagerBase::RemoveObserver(Observer* observer) {
    111   observer_list_.RemoveObserver(observer);
    112 }
    113 
    114 void SigninManagerBase::AddSigninDiagnosticsObserver(
    115     SigninDiagnosticsObserver* observer) {
    116   signin_diagnostics_observers_.AddObserver(observer);
    117 }
    118 
    119 void SigninManagerBase::RemoveSigninDiagnosticsObserver(
    120     SigninDiagnosticsObserver* observer) {
    121   signin_diagnostics_observers_.RemoveObserver(observer);
    122 }
    123 
    124 void SigninManagerBase::NotifyDiagnosticsObservers(
    125     const UntimedSigninStatusField& field,
    126     const std::string& value) {
    127   FOR_EACH_OBSERVER(SigninDiagnosticsObserver,
    128                     signin_diagnostics_observers_,
    129                     NotifySigninValueChanged(field, value));
    130 }
    131 
    132 void SigninManagerBase::NotifyDiagnosticsObservers(
    133     const TimedSigninStatusField& field,
    134     const std::string& value) {
    135   FOR_EACH_OBSERVER(SigninDiagnosticsObserver,
    136                     signin_diagnostics_observers_,
    137                     NotifySigninValueChanged(field, value));
    138 }
    139