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