chrome/browser/ui/passwords/password_manager_presenter.cc

   1 // Copyright 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 "chrome/browser/ui/passwords/password_manager_presenter.h"
   6
   7 #include "base/bind.h"
   8 #include "base/command_line.h"
   9 #include "base/metrics/user_metrics_action.h"
  10 #include "base/prefs/pref_service.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "base/time/time.h"
  13 #include "base/values.h"
  14 #include "chrome/browser/password_manager/password_manager_util.h"
  15 #include "chrome/browser/password_manager/password_store_factory.h"
  16 #include "chrome/browser/password_manager/sync_metrics.h"
  17 #include "chrome/browser/ui/passwords/password_ui_view.h"
  18 #include "chrome/common/chrome_switches.h"
  19 #include "chrome/common/url_constants.h"
  20 #include "components/autofill/core/common/password_form.h"
  21 #include "components/password_manager/core/common/password_manager_pref_names.h"
  22 #include "content/public/browser/user_metrics.h"
  23 #include "content/public/browser/web_contents.h"
  24
  25 using password_manager::PasswordStore;
  26
  27 PasswordManagerPresenter::PasswordManagerPresenter(
  28     PasswordUIView* password_view)
  29     : populater_(this),
  30       exception_populater_(this),
  31       password_view_(password_view) {
  32   DCHECK(password_view_);
  33   require_reauthentication_ = !CommandLine::ForCurrentProcess()->HasSwitch(
  34       switches::kDisablePasswordManagerReauthentication);
  35 }
  36
  37 PasswordManagerPresenter::~PasswordManagerPresenter() {
  38   PasswordStore* store = GetPasswordStore();
  39   if (store)
  40     store->RemoveObserver(this);
  41 }
  42
  43 void PasswordManagerPresenter::Initialize() {
  44   // Due to the way that handlers are (re)initialized under certain types of
  45   // navigation, the presenter may already be initialized. (See bugs 88986
  46   // and 86448). If this is the case, return immediately. This is a hack.
  47   // TODO(mdm): remove this hack once it is no longer necessary.
  48   if (!show_passwords_.GetPrefName().empty())
  49     return;
  50
  51   show_passwords_.Init(
  52       password_manager::prefs::kPasswordManagerAllowShowPasswords,
  53       password_view_->GetProfile()->GetPrefs(),
  54       base::Bind(&PasswordManagerPresenter::UpdatePasswordLists,
  55                  base::Unretained(this)));
  56   // TODO(jhawkins) We should not cache web_ui()->GetProfile().See
  57   // crosbug.com/6304.
  58   PasswordStore* store = GetPasswordStore();
  59   if (store)
  60     store->AddObserver(this);
  61 }
  62
  63 void PasswordManagerPresenter::OnLoginsChanged(
  64     const password_manager::PasswordStoreChangeList& changes) {
  65   // Entire list is updated for convenience.
  66   UpdatePasswordLists();
  67 }
  68
  69 PasswordStore* PasswordManagerPresenter::GetPasswordStore() {
  70   return PasswordStoreFactory::GetForProfile(password_view_->GetProfile(),
  71                                              Profile::EXPLICIT_ACCESS).get();
  72 }
  73
  74 void PasswordManagerPresenter::UpdatePasswordLists() {
  75   // Reset so that showing a password will require re-authentication.
  76   last_authentication_time_ = base::TimeTicks();
  77
  78   // Reset the current lists.
  79   password_list_.clear();
  80   password_exception_list_.clear();
  81
  82   populater_.Populate();
  83   exception_populater_.Populate();
  84 }
  85
  86 void PasswordManagerPresenter::RemoveSavedPassword(size_t index) {
  87   if (index >= password_list_.size()) {
  88     // |index| out of bounds might come from a compromised renderer, don't let
  89     // it crash the browser. http://crbug.com/362054
  90     NOTREACHED();
  91     return;
  92   }
  93   PasswordStore* store = GetPasswordStore();
  94   if (!store)
  95     return;
  96   store->RemoveLogin(*password_list_[index]);
  97   content::RecordAction(
  98       base::UserMetricsAction("PasswordManager_RemoveSavedPassword"));
  99 }
 100
 101 void PasswordManagerPresenter::RemovePasswordException(size_t index) {
 102   if (index >= password_exception_list_.size()) {
 103     // |index| out of bounds might come from a compromised renderer, don't let
 104     // it crash the browser. http://crbug.com/362054
 105     NOTREACHED();
 106     return;
 107   }
 108   PasswordStore* store = GetPasswordStore();
 109   if (!store)
 110     return;
 111   store->RemoveLogin(*password_exception_list_[index]);
 112   content::RecordAction(
 113       base::UserMetricsAction("PasswordManager_RemovePasswordException"));
 114 }
 115
 116 void PasswordManagerPresenter::RequestShowPassword(size_t index) {
 117 #if !defined(OS_ANDROID) // This is never called on Android.
 118   if (index >= password_list_.size()) {
 119     // |index| out of bounds might come from a compromised renderer, don't let
 120     // it crash the browser. http://crbug.com/362054
 121     NOTREACHED();
 122     return;
 123   }
 124   if (IsAuthenticationRequired()) {
 125     if (password_manager_util::AuthenticateUser(
 126         password_view_->GetNativeWindow()))
 127       last_authentication_time_ = base::TimeTicks::Now();
 128     else
 129       return;
 130   }
 131
 132   if (password_manager_sync_metrics::IsSyncAccountCredential(
 133           password_view_->GetProfile(),
 134           base::UTF16ToUTF8(password_list_[index]->username_value),
 135           password_list_[index]->signon_realm)) {
 136     content::RecordAction(
 137         base::UserMetricsAction("PasswordManager_SyncCredentialShown"));
 138   }
 139
 140   // Call back the front end to reveal the password.
 141   password_view_->ShowPassword(index, password_list_[index]->password_value);
 142 #endif
 143 }
 144
 145 const autofill::PasswordForm* PasswordManagerPresenter::GetPassword(
 146     size_t index) {
 147   if (index >= password_list_.size()) {
 148     // |index| out of bounds might come from a compromised renderer, don't let
 149     // it crash the browser. http://crbug.com/362054
 150     NOTREACHED();
 151     return NULL;
 152   }
 153   return password_list_[index];
 154 }
 155
 156 const autofill::PasswordForm* PasswordManagerPresenter::GetPasswordException(
 157     size_t index) {
 158   if (index >= password_exception_list_.size()) {
 159     // |index| out of bounds might come from a compromised renderer, don't let
 160     // it crash the browser. http://crbug.com/362054
 161     NOTREACHED();
 162     return NULL;
 163   }
 164   return password_exception_list_[index];
 165 }
 166
 167 void PasswordManagerPresenter::SetPasswordList() {
 168   // Due to the way that handlers are (re)initialized under certain types of
 169   // navigation, the presenter may already be initialized. (See bugs 88986
 170   // and 86448). If this is the case, return immediately. This is a hack.
 171   // If this is the case, initialize on demand. This is a hack.
 172   // TODO(mdm): remove this hack once it is no longer necessary.
 173   if (show_passwords_.GetPrefName().empty())
 174     Initialize();
 175
 176   bool show_passwords = *show_passwords_ && !require_reauthentication_;
 177   password_view_->SetPasswordList(password_list_, show_passwords);
 178 }
 179
 180 void PasswordManagerPresenter::SetPasswordExceptionList() {
 181   password_view_->SetPasswordExceptionList(password_exception_list_);
 182 }
 183
 184 bool PasswordManagerPresenter::IsAuthenticationRequired() {
 185   base::TimeDelta delta = base::TimeDelta::FromSeconds(60);
 186   return require_reauthentication_ &&
 187       (base::TimeTicks::Now() - last_authentication_time_) > delta;
 188 }
 189
 190 PasswordManagerPresenter::ListPopulater::ListPopulater(
 191     PasswordManagerPresenter* page) : page_(page) {
 192 }
 193
 194 PasswordManagerPresenter::ListPopulater::~ListPopulater() {
 195 }
 196
 197 PasswordManagerPresenter::PasswordListPopulater::PasswordListPopulater(
 198     PasswordManagerPresenter* page) : ListPopulater(page) {
 199 }
 200
 201 void PasswordManagerPresenter::PasswordListPopulater::Populate() {
 202   PasswordStore* store = page_->GetPasswordStore();
 203   if (store != NULL) {
 204     cancelable_task_tracker()->TryCancelAll();
 205     store->GetAutofillableLogins(this);
 206   } else {
 207     LOG(ERROR) << "No password store! Cannot display passwords.";
 208   }
 209 }
 210
 211 void PasswordManagerPresenter::PasswordListPopulater::OnGetPasswordStoreResults(
 212     const std::vector<autofill::PasswordForm*>& results) {
 213   page_->password_list_.clear();
 214   page_->password_list_.insert(page_->password_list_.end(),
 215                                results.begin(), results.end());
 216   page_->SetPasswordList();
 217 }
 218
 219 PasswordManagerPresenter::PasswordExceptionListPopulater::
 220     PasswordExceptionListPopulater(PasswordManagerPresenter* page)
 221         : ListPopulater(page) {
 222 }
 223
 224 void PasswordManagerPresenter::PasswordExceptionListPopulater::Populate() {
 225   PasswordStore* store = page_->GetPasswordStore();
 226   if (store != NULL) {
 227     cancelable_task_tracker()->TryCancelAll();
 228     store->GetBlacklistLogins(this);
 229   } else {
 230     LOG(ERROR) << "No password store! Cannot display exceptions.";
 231   }
 232 }
 233
 234 void PasswordManagerPresenter::PasswordExceptionListPopulater::
 235     OnGetPasswordStoreResults(
 236         const std::vector<autofill::PasswordForm*>& results) {
 237   page_->password_exception_list_.clear();
 238   page_->password_exception_list_.insert(page_->password_exception_list_.end(),
 239                                          results.begin(), results.end());
 240   page_->SetPasswordExceptionList();
 241 }