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      1 // Copyright (c) 2011 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/options/password_manager_handler.h"
      6 
      7 #include "base/callback.h"
      8 #include "base/string_number_conversions.h"
      9 #include "base/utf_string_conversions.h"
     10 #include "base/values.h"
     11 #include "chrome/browser/google/google_util.h"
     12 #include "chrome/browser/prefs/pref_service.h"
     13 #include "chrome/browser/profiles/profile.h"
     14 #include "chrome/common/pref_names.h"
     15 #include "chrome/common/url_constants.h"
     16 #include "content/common/notification_details.h"
     17 #include "content/common/notification_source.h"
     18 #include "grit/chromium_strings.h"
     19 #include "grit/generated_resources.h"
     20 #include "net/base/net_util.h"
     21 #include "ui/base/l10n/l10n_util.h"
     22 #include "webkit/glue/password_form.h"
     23 
     24 PasswordManagerHandler::PasswordManagerHandler()
     25     : ALLOW_THIS_IN_INITIALIZER_LIST(populater_(this)),
     26       ALLOW_THIS_IN_INITIALIZER_LIST(exception_populater_(this)) {
     27 }
     28 
     29 PasswordManagerHandler::~PasswordManagerHandler() {
     30   GetPasswordStore()->RemoveObserver(this);
     31 }
     32 
     33 void PasswordManagerHandler::GetLocalizedValues(
     34     DictionaryValue* localized_strings) {
     35   DCHECK(localized_strings);
     36 
     37   static const OptionsStringResource resources[] = {
     38     { "savedPasswordsTitle",
     39       IDS_PASSWORDS_SHOW_PASSWORDS_TAB_TITLE },
     40     { "passwordExceptionsTitle",
     41       IDS_PASSWORDS_EXCEPTIONS_TAB_TITLE },
     42     { "passwordShowButton",
     43       IDS_PASSWORDS_PAGE_VIEW_SHOW_BUTTON },
     44     { "passwordHideButton",
     45       IDS_PASSWORDS_PAGE_VIEW_HIDE_BUTTON },
     46     { "passwordsSiteColumn",
     47       IDS_PASSWORDS_PAGE_VIEW_SITE_COLUMN },
     48     { "passwordsUsernameColumn",
     49       IDS_PASSWORDS_PAGE_VIEW_USERNAME_COLUMN },
     50     { "passwordsRemoveButton",
     51       IDS_PASSWORDS_PAGE_VIEW_REMOVE_BUTTON },
     52     { "passwordsNoPasswordsDescription",
     53      IDS_PASSWORDS_PAGE_VIEW_NO_PASSWORDS_DESCRIPTION },
     54     { "passwordsNoExceptionsDescription",
     55      IDS_PASSWORDS_PAGE_VIEW_NO_EXCEPTIONS_DESCRIPTION },
     56     { "passwordsRemoveAllButton",
     57       IDS_PASSWORDS_PAGE_VIEW_REMOVE_ALL_BUTTON },
     58     { "passwordsRemoveAllTitle",
     59       IDS_PASSWORDS_PAGE_VIEW_CAPTION_DELETE_ALL_PASSWORDS },
     60     { "passwordsRemoveAllWarning",
     61       IDS_PASSWORDS_PAGE_VIEW_TEXT_DELETE_ALL_PASSWORDS },
     62   };
     63 
     64   RegisterStrings(localized_strings, resources, arraysize(resources));
     65   RegisterTitle(localized_strings, "passwordsPage",
     66                 IDS_PASSWORDS_EXCEPTIONS_WINDOW_TITLE);
     67 
     68   localized_strings->SetString("passwordManagerLearnMoreURL",
     69       google_util::AppendGoogleLocaleParam(
     70           GURL(chrome::kPasswordManagerLearnMoreURL)).spec());
     71 }
     72 
     73 void PasswordManagerHandler::Initialize() {
     74   show_passwords_.Init(prefs::kPasswordManagerAllowShowPasswords,
     75                        web_ui_->GetProfile()->GetPrefs(), this);
     76   // We should not cache web_ui_->GetProfile(). See crosbug.com/6304.
     77   GetPasswordStore()->AddObserver(this);
     78 }
     79 
     80 void PasswordManagerHandler::RegisterMessages() {
     81   DCHECK(web_ui_);
     82 
     83   web_ui_->RegisterMessageCallback("updatePasswordLists",
     84       NewCallback(this, &PasswordManagerHandler::UpdatePasswordLists));
     85   web_ui_->RegisterMessageCallback("removeSavedPassword",
     86       NewCallback(this, &PasswordManagerHandler::RemoveSavedPassword));
     87   web_ui_->RegisterMessageCallback("removePasswordException",
     88       NewCallback(this, &PasswordManagerHandler::RemovePasswordException));
     89   web_ui_->RegisterMessageCallback("removeAllSavedPasswords",
     90       NewCallback(this, &PasswordManagerHandler::RemoveAllSavedPasswords));
     91   web_ui_->RegisterMessageCallback("removeAllPasswordExceptions", NewCallback(
     92       this, &PasswordManagerHandler::RemoveAllPasswordExceptions));
     93 }
     94 
     95 void PasswordManagerHandler::OnLoginsChanged() {
     96   UpdatePasswordLists(NULL);
     97 }
     98 
     99 PasswordStore* PasswordManagerHandler::GetPasswordStore() {
    100   return web_ui_->GetProfile()->GetPasswordStore(Profile::EXPLICIT_ACCESS);
    101 }
    102 
    103 void PasswordManagerHandler::Observe(NotificationType type,
    104                                      const NotificationSource& source,
    105                                      const NotificationDetails& details) {
    106   if (type.value == NotificationType::PREF_CHANGED) {
    107     std::string* pref_name = Details<std::string>(details).ptr();
    108     if (*pref_name == prefs::kPasswordManagerAllowShowPasswords) {
    109       UpdatePasswordLists(NULL);
    110     }
    111   }
    112 
    113   OptionsPageUIHandler::Observe(type, source, details);
    114 }
    115 
    116 void PasswordManagerHandler::UpdatePasswordLists(const ListValue* args) {
    117   // Reset the current lists.
    118   password_list_.reset();
    119   password_exception_list_.reset();
    120 
    121   languages_ =
    122       web_ui_->GetProfile()->GetPrefs()->GetString(prefs::kAcceptLanguages);
    123   populater_.Populate();
    124   exception_populater_.Populate();
    125 }
    126 
    127 void PasswordManagerHandler::RemoveSavedPassword(const ListValue* args) {
    128   std::string string_value = UTF16ToUTF8(ExtractStringValue(args));
    129   int index;
    130   base::StringToInt(string_value, &index);
    131   GetPasswordStore()->RemoveLogin(*password_list_[index]);
    132 }
    133 
    134 void PasswordManagerHandler::RemovePasswordException(
    135     const ListValue* args) {
    136   std::string string_value = UTF16ToUTF8(ExtractStringValue(args));
    137   int index;
    138   base::StringToInt(string_value, &index);
    139 
    140   GetPasswordStore()->RemoveLogin(*password_exception_list_[index]);
    141 }
    142 
    143 void PasswordManagerHandler::RemoveAllSavedPasswords(
    144     const ListValue* args) {
    145   // TODO(jhawkins): This will cause a list refresh for every password in the
    146   // list. Add PasswordStore::RemoveAllLogins().
    147   PasswordStore* store = GetPasswordStore();
    148   for (size_t i = 0; i < password_list_.size(); ++i)
    149     store->RemoveLogin(*password_list_[i]);
    150 }
    151 
    152 void PasswordManagerHandler::RemoveAllPasswordExceptions(
    153     const ListValue* args) {
    154   PasswordStore* store = GetPasswordStore();
    155   for (size_t i = 0; i < password_exception_list_.size(); ++i)
    156     store->RemoveLogin(*password_exception_list_[i]);
    157 }
    158 
    159 void PasswordManagerHandler::SetPasswordList() {
    160   ListValue entries;
    161   bool show_passwords = *show_passwords_;
    162   string16 empty;
    163   for (size_t i = 0; i < password_list_.size(); ++i) {
    164     ListValue* entry = new ListValue();
    165     entry->Append(new StringValue(net::FormatUrl(password_list_[i]->origin,
    166                                                  languages_)));
    167     entry->Append(new StringValue(password_list_[i]->username_value));
    168     entry->Append(new StringValue(
    169         show_passwords ? password_list_[i]->password_value : empty));
    170     entries.Append(entry);
    171   }
    172 
    173   web_ui_->CallJavascriptFunction("PasswordManager.setSavedPasswordsList",
    174                                   entries);
    175 }
    176 
    177 void PasswordManagerHandler::SetPasswordExceptionList() {
    178   ListValue entries;
    179   for (size_t i = 0; i < password_exception_list_.size(); ++i) {
    180     entries.Append(new StringValue(
    181         net::FormatUrl(password_exception_list_[i]->origin, languages_)));
    182   }
    183 
    184   web_ui_->CallJavascriptFunction("PasswordManager.setPasswordExceptionsList",
    185                                   entries);
    186 }
    187 
    188 PasswordManagerHandler::ListPopulater::ListPopulater(
    189     PasswordManagerHandler* page)
    190     : page_(page),
    191       pending_login_query_(0) {
    192 }
    193 
    194 PasswordManagerHandler::ListPopulater::~ListPopulater() {
    195 }
    196 
    197 PasswordManagerHandler::PasswordListPopulater::PasswordListPopulater(
    198     PasswordManagerHandler* page) : ListPopulater(page) {
    199 }
    200 
    201 void PasswordManagerHandler::PasswordListPopulater::Populate() {
    202   PasswordStore* store = page_->GetPasswordStore();
    203   if (store != NULL) {
    204     if (pending_login_query_)
    205       store->CancelRequest(pending_login_query_);
    206 
    207     pending_login_query_ = store->GetAutofillableLogins(this);
    208   } else {
    209     LOG(ERROR) << "No password store! Cannot display passwords.";
    210   }
    211 }
    212 
    213 void PasswordManagerHandler::PasswordListPopulater::
    214     OnPasswordStoreRequestDone(
    215         CancelableRequestProvider::Handle handle,
    216         const std::vector<webkit_glue::PasswordForm*>& result) {
    217   DCHECK_EQ(pending_login_query_, handle);
    218   pending_login_query_ = 0;
    219   page_->password_list_.reset();
    220   page_->password_list_.insert(page_->password_list_.end(),
    221                                result.begin(), result.end());
    222   page_->SetPasswordList();
    223 }
    224 
    225 PasswordManagerHandler::PasswordExceptionListPopulater::
    226     PasswordExceptionListPopulater(PasswordManagerHandler* page)
    227         : ListPopulater(page) {
    228 }
    229 
    230 void PasswordManagerHandler::PasswordExceptionListPopulater::Populate() {
    231   PasswordStore* store = page_->GetPasswordStore();
    232   if (store != NULL) {
    233     if (pending_login_query_)
    234       store->CancelRequest(pending_login_query_);
    235 
    236     pending_login_query_ = store->GetBlacklistLogins(this);
    237   } else {
    238     LOG(ERROR) << "No password store! Cannot display exceptions.";
    239   }
    240 }
    241 
    242 void PasswordManagerHandler::PasswordExceptionListPopulater::
    243     OnPasswordStoreRequestDone(
    244         CancelableRequestProvider::Handle handle,
    245         const std::vector<webkit_glue::PasswordForm*>& result) {
    246   DCHECK_EQ(pending_login_query_, handle);
    247   pending_login_query_ = 0;
    248   page_->password_exception_list_.reset();
    249   page_->password_exception_list_.insert(page_->password_exception_list_.end(),
    250                                          result.begin(), result.end());
    251   page_->SetPasswordExceptionList();
    252 }
    253