]> scripts.mit.edu Git - autoinstalls/mediawiki.git/blobdiff - includes/Preferences.php
MediaWiki 1.30.2
[autoinstalls/mediawiki.git] / includes / Preferences.php
index c8ea2cc6be7abb33d147698d8ecd733d612b513f..a7e6684bb3e177681d4a2980c2ebb613ab3f1fab 100644 (file)
@@ -1,4 +1,26 @@
 <?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+use MediaWiki\Auth\AuthManager;
+use MediaWiki\Auth\PasswordAuthenticationRequest;
+use MediaWiki\MediaWikiServices;
+
 /**
  * We're now using the HTMLForm object with some customisation to generate the
  * Preferences form. This object handles generic submission, CSRF protection,
  * Once fields have been retrieved and validated, submission logic is handed
  * over to the tryUISubmit static method of this class.
  */
-
 class Preferences {
-       static $defaultPreferences = null;
-       static $saveFilters = array(
-                       'timecorrection' => array( 'Preferences', 'filterTimezoneInput' ),
-                       'cols' => array( 'Preferences', 'filterIntval' ),
-                       'rows' => array( 'Preferences', 'filterIntval' ),
-                       'rclimit' => array( 'Preferences', 'filterIntval' ),
-                       'wllimit' => array( 'Preferences', 'filterIntval' ),
-                       'searchlimit' => array( 'Preferences', 'filterIntval' ),
-       );
-
-       static function getPreferences( $user ) {
-               if ( self::$defaultPreferences )
+       /** @var array */
+       protected static $defaultPreferences = null;
+
+       /** @var array */
+       protected static $saveFilters = [
+               'timecorrection' => [ 'Preferences', 'filterTimezoneInput' ],
+               'rclimit' => [ 'Preferences', 'filterIntval' ],
+               'wllimit' => [ 'Preferences', 'filterIntval' ],
+               'searchlimit' => [ 'Preferences', 'filterIntval' ],
+       ];
+
+       // Stuff that shouldn't be saved as a preference.
+       private static $saveBlacklist = [
+               'realname',
+               'emailaddress',
+       ];
+
+       /**
+        * @return array
+        */
+       static function getSaveBlacklist() {
+               return self::$saveBlacklist;
+       }
+
+       /**
+        * @throws MWException
+        * @param User $user
+        * @param IContextSource $context
+        * @return array|null
+        */
+       static function getPreferences( $user, IContextSource $context ) {
+               if ( self::$defaultPreferences ) {
                        return self::$defaultPreferences;
+               }
+
+               $defaultPreferences = [];
+
+               self::profilePreferences( $user, $context, $defaultPreferences );
+               self::skinPreferences( $user, $context, $defaultPreferences );
+               self::datetimePreferences( $user, $context, $defaultPreferences );
+               self::filesPreferences( $user, $context, $defaultPreferences );
+               self::renderingPreferences( $user, $context, $defaultPreferences );
+               self::editingPreferences( $user, $context, $defaultPreferences );
+               self::rcPreferences( $user, $context, $defaultPreferences );
+               self::watchlistPreferences( $user, $context, $defaultPreferences );
+               self::searchPreferences( $user, $context, $defaultPreferences );
+               self::miscPreferences( $user, $context, $defaultPreferences );
+
+               Hooks::run( 'GetPreferences', [ $user, &$defaultPreferences ] );
+
+               self::loadPreferenceValues( $user, $context, $defaultPreferences );
+               self::$defaultPreferences = $defaultPreferences;
+               return $defaultPreferences;
+       }
 
-               $defaultPreferences = array();
-
-               self::profilePreferences( $user, $defaultPreferences );
-               self::skinPreferences( $user, $defaultPreferences );
-               self::filesPreferences( $user, $defaultPreferences );
-               self::mathPreferences( $user, $defaultPreferences );
-               self::datetimePreferences( $user, $defaultPreferences );
-               self::renderingPreferences( $user, $defaultPreferences );
-               self::editingPreferences( $user, $defaultPreferences );
-               self::rcPreferences( $user, $defaultPreferences );
-               self::watchlistPreferences( $user, $defaultPreferences );
-               self::searchPreferences( $user, $defaultPreferences );
-               self::miscPreferences( $user, $defaultPreferences );
-
-               wfRunHooks( 'GetPreferences', array( $user, &$defaultPreferences ) );
-
-               ## Remove preferences that wikis don't want to use
-               global $wgHiddenPrefs;
-               foreach ( $wgHiddenPrefs as $pref ) {
+       /**
+        * Loads existing values for a given array of preferences
+        * @throws MWException
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences Array to load values for
+        * @return array|null
+        */
+       static function loadPreferenceValues( $user, $context, &$defaultPreferences ) {
+               # # Remove preferences that wikis don't want to use
+               foreach ( $context->getConfig()->get( 'HiddenPrefs' ) as $pref ) {
                        if ( isset( $defaultPreferences[$pref] ) ) {
                                unset( $defaultPreferences[$pref] );
                        }
                }
 
-               ## Prod in defaults from the user
+               # # Make sure that form fields have their parent set. See T43337.
+               $dummyForm = new HTMLForm( [], $context );
+
+               $disable = !$user->isAllowed( 'editmyoptions' );
+
+               $defaultOptions = User::getDefaultOptions();
+               # # Prod in defaults from the user
                foreach ( $defaultPreferences as $name => &$info ) {
                        $prefFromUser = self::getOptionFromUser( $name, $info, $user );
-                       $field = HTMLForm::loadInputFromParameters( $name, $info ); // For validation
-                       $defaultOptions = User::getDefaultOptions();
+                       if ( $disable && !in_array( $name, self::$saveBlacklist ) ) {
+                               $info['disabled'] = 'disabled';
+                       }
+                       $field = HTMLForm::loadInputFromParameters( $name, $info, $dummyForm ); // For validation
                        $globalDefault = isset( $defaultOptions[$name] )
                                ? $defaultOptions[$name]
                                : null;
@@ -78,30 +140,35 @@ class Preferences {
                                // Already set, no problem
                                continue;
                        } elseif ( !is_null( $prefFromUser ) && // Make sure we're not just pulling nothing
-                                       $field->validate( $prefFromUser, $user->mOptions ) === true ) {
+                                       $field->validate( $prefFromUser, $user->getOptions() ) === true ) {
                                $info['default'] = $prefFromUser;
-                       } elseif ( $field->validate( $globalDefault, $user->mOptions ) === true ) {
+                       } elseif ( $field->validate( $globalDefault, $user->getOptions() ) === true ) {
                                $info['default'] = $globalDefault;
                        } else {
                                throw new MWException( "Global default '$globalDefault' is invalid for field $name" );
                        }
                }
 
-               self::$defaultPreferences = $defaultPreferences;
-
                return $defaultPreferences;
        }
 
-       // Pull option from a user account. Handles stuff like array-type preferences.
+       /**
+        * Pull option from a user account. Handles stuff like array-type preferences.
+        *
+        * @param string $name
+        * @param array $info
+        * @param User $user
+        * @return array|string
+        */
        static function getOptionFromUser( $name, $info, $user ) {
                $val = $user->getOption( $name );
 
-               // Handling for array-type preferences
+               // Handling for multiselect preferences
                if ( ( isset( $info['type'] ) && $info['type'] == 'multiselect' ) ||
                                ( isset( $info['class'] ) && $info['class'] == 'HTMLMultiSelectField' ) ) {
                        $options = HTMLFormField::flattenOptions( $info['options'] );
                        $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
-                       $val = array();
+                       $val = [];
 
                        foreach ( $options as $value ) {
                                if ( $user->getOption( "$prefix$value" ) ) {
@@ -110,961 +177,1074 @@ class Preferences {
                        }
                }
 
+               // Handling for checkmatrix preferences
+               if ( ( isset( $info['type'] ) && $info['type'] == 'checkmatrix' ) ||
+                               ( isset( $info['class'] ) && $info['class'] == 'HTMLCheckMatrix' ) ) {
+                       $columns = HTMLFormField::flattenOptions( $info['columns'] );
+                       $rows = HTMLFormField::flattenOptions( $info['rows'] );
+                       $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
+                       $val = [];
+
+                       foreach ( $columns as $column ) {
+                               foreach ( $rows as $row ) {
+                                       if ( $user->getOption( "$prefix$column-$row" ) ) {
+                                               $val[] = "$column-$row";
+                                       }
+                               }
+                       }
+               }
+
                return $val;
        }
 
-       static function profilePreferences( $user, &$defaultPreferences ) {
-               global $wgLang, $wgUser;
-               ## User info #####################################
+       /**
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences
+        * @return void
+        */
+       static function profilePreferences( $user, IContextSource $context, &$defaultPreferences ) {
+               global $wgContLang, $wgParser;
+
+               $authManager = AuthManager::singleton();
+               $config = $context->getConfig();
+               // retrieving user name for GENDER and misc.
+               $userName = $user->getName();
+
+               # # User info #####################################
                // Information panel
-               $defaultPreferences['username'] = array(
+               $defaultPreferences['username'] = [
                        'type' => 'info',
-                       'label-message' => 'username',
-                       'default' => $user->getName(),
+                       'label-message' => [ 'username', $userName ],
+                       'default' => $userName,
                        'section' => 'personal/info',
-               );
+               ];
 
-               $defaultPreferences['userid'] = array(
-                       'type' => 'info',
-                       'label-message' => 'uid',
-                       'default' => $user->getId(),
-                       'section' => 'personal/info',
-               );
+               $lang = $context->getLanguage();
 
                # Get groups to which the user belongs
                $userEffectiveGroups = $user->getEffectiveGroups();
-               $userGroups = $userMembers = array();
+               $userGroupMemberships = $user->getGroupMemberships();
+               $userGroups = $userMembers = $userTempGroups = $userTempMembers = [];
                foreach ( $userEffectiveGroups as $ueg ) {
                        if ( $ueg == '*' ) {
                                // Skip the default * group, seems useless here
                                continue;
                        }
-                       $groupName  = User::getGroupName( $ueg );
-                       $userGroups[] = User::makeGroupLinkHTML( $ueg, $groupName );
 
-                       $memberName = User::getGroupMember( $ueg );
-                       $userMembers[] = User::makeGroupLinkHTML( $ueg, $memberName );
-               }
-               asort( $userGroups );
-               asort( $userMembers );
+                       if ( isset( $userGroupMemberships[$ueg] ) ) {
+                               $groupStringOrObject = $userGroupMemberships[$ueg];
+                       } else {
+                               $groupStringOrObject = $ueg;
+                       }
 
-               $defaultPreferences['usergroups'] = array(
+                       $userG = UserGroupMembership::getLink( $groupStringOrObject, $context, 'html' );
+                       $userM = UserGroupMembership::getLink( $groupStringOrObject, $context, 'html',
+                               $userName );
+
+                       // Store expiring groups separately, so we can place them before non-expiring
+                       // groups in the list. This is to avoid the ambiguity of something like
+                       // "administrator, bureaucrat (until X date)" -- users might wonder whether the
+                       // expiry date applies to both groups, or just the last one
+                       if ( $groupStringOrObject instanceof UserGroupMembership &&
+                               $groupStringOrObject->getExpiry()
+                       ) {
+                               $userTempGroups[] = $userG;
+                               $userTempMembers[] = $userM;
+                       } else {
+                               $userGroups[] = $userG;
+                               $userMembers[] = $userM;
+                       }
+               }
+               sort( $userGroups );
+               sort( $userMembers );
+               sort( $userTempGroups );
+               sort( $userTempMembers );
+               $userGroups = array_merge( $userTempGroups, $userGroups );
+               $userMembers = array_merge( $userTempMembers, $userMembers );
+
+               $defaultPreferences['usergroups'] = [
                        'type' => 'info',
-                       'label' => wfMsgExt(
-                               'prefs-memberingroups', 'parseinline',
-                               $wgLang->formatNum( count( $userGroups ) )
-                       ),
-                       'default' => wfMsgExt(
-                               'prefs-memberingroups-type', array(),
-                               $wgLang->commaList( $userGroups ),
-                               $wgLang->commaList( $userMembers )
-                       ),
+                       'label' => $context->msg( 'prefs-memberingroups' )->numParams(
+                               count( $userGroups ) )->params( $userName )->parse(),
+                       'default' => $context->msg( 'prefs-memberingroups-type' )
+                               ->rawParams( $lang->commaList( $userGroups ), $lang->commaList( $userMembers ) )
+                               ->escaped(),
                        'raw' => true,
                        'section' => 'personal/info',
-               );
+               ];
 
-               $defaultPreferences['editcount'] = array(
+               $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
+
+               $editCount = $linkRenderer->makeLink( SpecialPage::getTitleFor( "Contributions", $userName ),
+                       $lang->formatNum( $user->getEditCount() ) );
+
+               $defaultPreferences['editcount'] = [
                        'type' => 'info',
+                       'raw' => true,
                        'label-message' => 'prefs-edits',
-                       'default' => $wgLang->formatNum( $user->getEditCount() ),
+                       'default' => $editCount,
                        'section' => 'personal/info',
-               );
+               ];
 
                if ( $user->getRegistration() ) {
-                       $defaultPreferences['registrationdate'] = array(
+                       $displayUser = $context->getUser();
+                       $userRegistration = $user->getRegistration();
+                       $defaultPreferences['registrationdate'] = [
                                'type' => 'info',
                                'label-message' => 'prefs-registration',
-                               'default' => wfMsgExt(
-                                       'prefs-registration-date-time', 'parsemag',
-                                       $wgLang->timeanddate( $user->getRegistration(), true ),
-                                       $wgLang->date( $user->getRegistration(), true ),
-                                       $wgLang->time( $user->getRegistration(), true )
-                               ),
+                               'default' => $context->msg(
+                                       'prefs-registration-date-time',
+                                       $lang->userTimeAndDate( $userRegistration, $displayUser ),
+                                       $lang->userDate( $userRegistration, $displayUser ),
+                                       $lang->userTime( $userRegistration, $displayUser )
+                               )->parse(),
                                'section' => 'personal/info',
-                       );
+                       ];
                }
 
+               $canViewPrivateInfo = $user->isAllowed( 'viewmyprivateinfo' );
+               $canEditPrivateInfo = $user->isAllowed( 'editmyprivateinfo' );
+
                // Actually changeable stuff
-               global $wgAuth;
-               $defaultPreferences['realname'] = array(
-                       'type' => $wgAuth->allowPropChange( 'realname' ) ? 'text' : 'info',
+               $defaultPreferences['realname'] = [
+                       // (not really "private", but still shouldn't be edited without permission)
+                       'type' => $canEditPrivateInfo && $authManager->allowsPropertyChange( 'realname' )
+                               ? 'text' : 'info',
                        'default' => $user->getRealName(),
                        'section' => 'personal/info',
                        'label-message' => 'yourrealname',
                        'help-message' => 'prefs-help-realname',
-               );
-
-               $defaultPreferences['gender'] = array(
-                       'type' => 'select',
-                       'section' => 'personal/info',
-                       'options' => array(
-                               wfMsg( 'gender-male' ) => 'male',
-                               wfMsg( 'gender-female' ) => 'female',
-                               wfMsg( 'gender-unknown' ) => 'unknown',
-                       ),
-                       'label-message' => 'yourgender',
-                       'help-message' => 'prefs-help-gender',
-               );
+               ];
 
-               if ( $wgAuth->allowPasswordChange() ) {
-                       $link = $wgUser->getSkin()->link( SpecialPage::getTitleFor( 'Resetpass' ),
-                               wfMsgHtml( 'prefs-resetpass' ), array(),
-                               array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' ) ) );
+               if ( $canEditPrivateInfo && $authManager->allowsAuthenticationDataChange(
+                       new PasswordAuthenticationRequest(), false )->isGood()
+               ) {
+                       $link = $linkRenderer->makeLink( SpecialPage::getTitleFor( 'ChangePassword' ),
+                               $context->msg( 'prefs-resetpass' )->text(), [],
+                               [ 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ] );
 
-                       $defaultPreferences['password'] = array(
+                       $defaultPreferences['password'] = [
                                'type' => 'info',
                                'raw' => true,
                                'default' => $link,
                                'label-message' => 'yourpassword',
                                'section' => 'personal/info',
-                       );
+                       ];
                }
-               global $wgCookieExpiration;
-               if ( $wgCookieExpiration > 0 ) {
-                       $defaultPreferences['rememberpassword'] = array(
+               // Only show prefershttps if secure login is turned on
+               if ( $config->get( 'SecureLogin' ) && wfCanIPUseHTTPS( $context->getRequest()->getIP() ) ) {
+                       $defaultPreferences['prefershttps'] = [
                                'type' => 'toggle',
-                               'label' => wfMsgExt(
-                                       'tog-rememberpassword',
-                                       array( 'parsemag' ),
-                                       $wgLang->formatNum( ceil( $wgCookieExpiration / ( 3600 * 24 ) ) )
-                                       ),
-                               'section' => 'personal/info',
-                       );
+                               'label-message' => 'tog-prefershttps',
+                               'help-message' => 'prefs-help-prefershttps',
+                               'section' => 'personal/info'
+                       ];
                }
 
                // Language
-               global $wgLanguageCode;
-               $languages = Language::getLanguageNames( false );
-               if ( !array_key_exists( $wgLanguageCode, $languages ) ) {
-                       $languages[$wgLanguageCode] = $wgLanguageCode;
+               $languages = Language::fetchLanguageNames( null, 'mw' );
+               $languageCode = $config->get( 'LanguageCode' );
+               if ( !array_key_exists( $languageCode, $languages ) ) {
+                       $languages[$languageCode] = $languageCode;
                }
                ksort( $languages );
 
-               $options = array();
+               $options = [];
                foreach ( $languages as $code => $name ) {
                        $display = wfBCP47( $code ) . ' - ' . $name;
                        $options[$display] = $code;
                }
-               $defaultPreferences['language'] = array(
+               $defaultPreferences['language'] = [
                        'type' => 'select',
                        'section' => 'personal/i18n',
                        'options' => $options,
                        'label-message' => 'yourlanguage',
-               );
+               ];
 
-               global $wgContLang, $wgDisableLangConversion;
-               global $wgDisableTitleConversion;
-               /* see if there are multiple language variants to choose from*/
-               $variantArray = array();
-               if ( !$wgDisableLangConversion ) {
-                       $variants = $wgContLang->getVariants();
-
-                       $languages = Language::getLanguageNames( true );
-                       foreach ( $variants as $v ) {
-                               $v = str_replace( '_', '-', strtolower( $v ) );
-                               if ( array_key_exists( $v, $languages ) ) {
-                                       // If it doesn't have a name, we'll pretend it doesn't exist
-                                       $variantArray[$v] = $languages[$v];
-                               }
-                       }
+               $defaultPreferences['gender'] = [
+                       'type' => 'radio',
+                       'section' => 'personal/i18n',
+                       'options' => [
+                               $context->msg( 'parentheses' )
+                                       ->params( $context->msg( 'gender-unknown' )->plain() )
+                                       ->escaped() => 'unknown',
+                               $context->msg( 'gender-female' )->escaped() => 'female',
+                               $context->msg( 'gender-male' )->escaped() => 'male',
+                       ],
+                       'label-message' => 'yourgender',
+                       'help-message' => 'prefs-help-gender',
+               ];
 
-                       $options = array();
-                       foreach ( $variantArray as $code => $name ) {
-                               $display = wfBCP47( $code ) . ' - ' . $name;
-                               $options[$display] = $code;
-                       }
+               // see if there are multiple language variants to choose from
+               if ( !$config->get( 'DisableLangConversion' ) ) {
+                       foreach ( LanguageConverter::$languagesWithVariants as $langCode ) {
+                               if ( $langCode == $wgContLang->getCode() ) {
+                                       $variants = $wgContLang->getVariants();
 
-                       if ( count( $variantArray ) > 1 ) {
-                               $defaultPreferences['variant'] = array(
-                                       'label-message' => 'yourvariant',
-                                       'type' => 'select',
-                                       'options' => $options,
-                                       'section' => 'personal/i18n',
-                               );
+                                       if ( count( $variants ) <= 1 ) {
+                                               continue;
+                                       }
+
+                                       $variantArray = [];
+                                       foreach ( $variants as $v ) {
+                                               $v = str_replace( '_', '-', strtolower( $v ) );
+                                               $variantArray[$v] = $lang->getVariantname( $v, false );
+                                       }
+
+                                       $options = [];
+                                       foreach ( $variantArray as $code => $name ) {
+                                               $display = wfBCP47( $code ) . ' - ' . $name;
+                                               $options[$display] = $code;
+                                       }
+
+                                       $defaultPreferences['variant'] = [
+                                               'label-message' => 'yourvariant',
+                                               'type' => 'select',
+                                               'options' => $options,
+                                               'section' => 'personal/i18n',
+                                               'help-message' => 'prefs-help-variant',
+                                       ];
+                               } else {
+                                       $defaultPreferences["variant-$langCode"] = [
+                                               'type' => 'api',
+                                       ];
+                               }
                        }
                }
 
-               if ( count( $variantArray ) > 1 && !$wgDisableLangConversion && !$wgDisableTitleConversion ) {
-                       $defaultPreferences['noconvertlink'] =
-                                       array(
+               // Stuff from Language::getExtraUserToggles()
+               // FIXME is this dead code? $extraUserToggles doesn't seem to be defined for any language
+               $toggles = $wgContLang->getExtraUserToggles();
+
+               foreach ( $toggles as $toggle ) {
+                       $defaultPreferences[$toggle] = [
                                'type' => 'toggle',
                                'section' => 'personal/i18n',
-                               'label-message' => 'tog-noconvertlink',
-                       );
+                               'label-message' => "tog-$toggle",
+                       ];
                }
 
-               global $wgMaxSigChars, $wgOut, $wgParser;
-
                // show a preview of the old signature first
-               $oldsigWikiText = $wgParser->preSaveTransform( "~~~", new Title , $user, new ParserOptions );
-               $oldsigHTML = $wgOut->parseInline( $oldsigWikiText );
-               $defaultPreferences['oldsig'] = array(
+               $oldsigWikiText = $wgParser->preSaveTransform(
+                       '~~~',
+                       $context->getTitle(),
+                       $user,
+                       ParserOptions::newFromContext( $context )
+               );
+               $oldsigHTML = $context->getOutput()->parseInline( $oldsigWikiText, true, true );
+               $defaultPreferences['oldsig'] = [
                        'type' => 'info',
                        'raw' => true,
                        'label-message' => 'tog-oldsig',
                        'default' => $oldsigHTML,
                        'section' => 'personal/signature',
-               );
-               $defaultPreferences['nickname'] = array(
-                       'type' => $wgAuth->allowPropChange( 'nickname' ) ? 'text' : 'info',
-                       'maxlength' => $wgMaxSigChars,
+               ];
+               $defaultPreferences['nickname'] = [
+                       'type' => $authManager->allowsPropertyChange( 'nickname' ) ? 'text' : 'info',
+                       'maxlength' => $config->get( 'MaxSigChars' ),
                        'label-message' => 'yournick',
-                       'validation-callback' => array( 'Preferences', 'validateSignature' ),
+                       'validation-callback' => [ 'Preferences', 'validateSignature' ],
                        'section' => 'personal/signature',
-                       'filter-callback' => array( 'Preferences', 'cleanSignature' ),
-               );
-               $defaultPreferences['fancysig'] = array(
+                       'filter-callback' => [ 'Preferences', 'cleanSignature' ],
+               ];
+               $defaultPreferences['fancysig'] = [
                        'type' => 'toggle',
                        'label-message' => 'tog-fancysig',
-                       'help-message' => 'prefs-help-signature', // show general help about signature at the bottom of the section
+                       // show general help about signature at the bottom of the section
+                       'help-message' => 'prefs-help-signature',
                        'section' => 'personal/signature'
-               );
+               ];
 
-               ## Email stuff
-
-               global $wgEnableEmail;
-               if ( $wgEnableEmail ) {
-                       global $wgEmailConfirmToEdit;
-
-                       $defaultPreferences['emailaddress'] = array(
-                               'type' => $wgAuth->allowPropChange( 'emailaddress' ) ? 'email' : 'info',
-                               'default' => $user->getEmail(),
-                               'section' => 'personal/email',
-                               'label-message' => 'youremail',
-                               'help-message' => $wgEmailConfirmToEdit
-                                       ? 'prefs-help-email-required'
-                                       : 'prefs-help-email',
-                               'validation-callback' => array( 'Preferences', 'validateEmail' ),
-                       );
+               # # Email stuff
 
-                       global $wgEnableUserEmail, $wgEmailAuthentication;
+               if ( $config->get( 'EnableEmail' ) ) {
+                       if ( $canViewPrivateInfo ) {
+                               $helpMessages[] = $config->get( 'EmailConfirmToEdit' )
+                                               ? 'prefs-help-email-required'
+                                               : 'prefs-help-email';
+
+                               if ( $config->get( 'EnableUserEmail' ) ) {
+                                       // additional messages when users can send email to each other
+                                       $helpMessages[] = 'prefs-help-email-others';
+                               }
+
+                               $emailAddress = $user->getEmail() ? htmlspecialchars( $user->getEmail() ) : '';
+                               if ( $canEditPrivateInfo && $authManager->allowsPropertyChange( 'emailaddress' ) ) {
+                                       $link = $linkRenderer->makeLink(
+                                               SpecialPage::getTitleFor( 'ChangeEmail' ),
+                                               $context->msg( $user->getEmail() ? 'prefs-changeemail' : 'prefs-setemail' )->text(),
+                                               [],
+                                               [ 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ] );
+
+                                       $emailAddress .= $emailAddress == '' ? $link : (
+                                               $context->msg( 'word-separator' )->escaped()
+                                               . $context->msg( 'parentheses' )->rawParams( $link )->escaped()
+                                       );
+                               }
+
+                               $defaultPreferences['emailaddress'] = [
+                                       'type' => 'info',
+                                       'raw' => true,
+                                       'default' => $emailAddress,
+                                       'label-message' => 'youremail',
+                                       'section' => 'personal/email',
+                                       'help-messages' => $helpMessages,
+                                       # 'cssclass' chosen below
+                               ];
+                       }
 
                        $disableEmailPrefs = false;
 
-                       if ( $wgEmailAuthentication ) {
+                       if ( $config->get( 'EmailAuthentication' ) ) {
+                               $emailauthenticationclass = 'mw-email-not-authenticated';
                                if ( $user->getEmail() ) {
                                        if ( $user->getEmailAuthenticationTimestamp() ) {
                                                // date and time are separate parameters to facilitate localisation.
                                                // $time is kept for backward compat reasons.
                                                // 'emailauthenticated' is also used in SpecialConfirmemail.php
-                                               $time = $wgLang->timeAndDate( $user->getEmailAuthenticationTimestamp(), true );
-                                               $d = $wgLang->date( $user->getEmailAuthenticationTimestamp(), true );
-                                               $t = $wgLang->time( $user->getEmailAuthenticationTimestamp(), true );
-                                               $emailauthenticated = wfMsgExt(
-                                                       'emailauthenticated', 'parseinline',
-                                                       array( $time, $d, $t )
-                                               ) . '<br />';
+                                               $displayUser = $context->getUser();
+                                               $emailTimestamp = $user->getEmailAuthenticationTimestamp();
+                                               $time = $lang->userTimeAndDate( $emailTimestamp, $displayUser );
+                                               $d = $lang->userDate( $emailTimestamp, $displayUser );
+                                               $t = $lang->userTime( $emailTimestamp, $displayUser );
+                                               $emailauthenticated = $context->msg( 'emailauthenticated',
+                                                       $time, $d, $t )->parse() . '<br />';
                                                $disableEmailPrefs = false;
+                                               $emailauthenticationclass = 'mw-email-authenticated';
                                        } else {
                                                $disableEmailPrefs = true;
-                                               $skin = $wgUser->getSkin();
-                                               $emailauthenticated = wfMsgExt( 'emailnotauthenticated', 'parseinline' ) . '<br />' .
-                                                       $skin->link(
+                                               $emailauthenticated = $context->msg( 'emailnotauthenticated' )->parse() . '<br />' .
+                                                       $linkRenderer->makeKnownLink(
                                                                SpecialPage::getTitleFor( 'Confirmemail' ),
-                                                               wfMsg( 'emailconfirmlink' ),
-                                                               array(),
-                                                               array(),
-                                                               array( 'known', 'noclasses' )
+                                                               $context->msg( 'emailconfirmlink' )->text()
                                                        ) . '<br />';
+                                               $emailauthenticationclass = "mw-email-not-authenticated";
                                        }
                                } else {
                                        $disableEmailPrefs = true;
-                                       $emailauthenticated = wfMsgHtml( 'noemailprefs' );
+                                       $emailauthenticated = $context->msg( 'noemailprefs' )->escaped();
+                                       $emailauthenticationclass = 'mw-email-none';
                                }
 
-                               $defaultPreferences['emailauthentication'] = array(
-                                       'type' => 'info',
-                                       'raw' => true,
-                                       'section' => 'personal/email',
-                                       'label-message' => 'prefs-emailconfirm-label',
-                                       'default' => $emailauthenticated,
-                               );
-
+                               if ( $canViewPrivateInfo ) {
+                                       $defaultPreferences['emailauthentication'] = [
+                                               'type' => 'info',
+                                               'raw' => true,
+                                               'section' => 'personal/email',
+                                               'label-message' => 'prefs-emailconfirm-label',
+                                               'default' => $emailauthenticated,
+                                               # Apply the same CSS class used on the input to the message:
+                                               'cssclass' => $emailauthenticationclass,
+                                       ];
+                               }
                        }
 
-                       if ( $wgEnableUserEmail && $user->isAllowed( 'sendemail' ) ) {
-                               $defaultPreferences['disablemail'] = array(
+                       if ( $config->get( 'EnableUserEmail' ) && $user->isAllowed( 'sendemail' ) ) {
+                               $defaultPreferences['disablemail'] = [
                                        'type' => 'toggle',
                                        'invert' => true,
                                        'section' => 'personal/email',
                                        'label-message' => 'allowemail',
                                        'disabled' => $disableEmailPrefs,
-                               );
-                               $defaultPreferences['ccmeonemails'] = array(
+                               ];
+                               $defaultPreferences['ccmeonemails'] = [
                                        'type' => 'toggle',
                                        'section' => 'personal/email',
                                        'label-message' => 'tog-ccmeonemails',
                                        'disabled' => $disableEmailPrefs,
-                               );
+                               ];
+
+                               if ( $config->get( 'EnableUserEmailBlacklist' )
+                                        && !$disableEmailPrefs
+                                        && !(bool)$user->getOption( 'disablemail' )
+                               ) {
+                                       $lookup = CentralIdLookup::factory();
+                                       $ids = $user->getOption( 'email-blacklist', [] );
+                                       $names = $ids ? $lookup->namesFromCentralIds( $ids, $user ) : [];
+
+                                       $defaultPreferences['email-blacklist'] = [
+                                               'type' => 'usersmultiselect',
+                                               'label-message' => 'email-blacklist-label',
+                                               'section' => 'personal/email',
+                                               'default' => implode( "\n", $names ),
+                                       ];
+                               }
                        }
 
-                       global $wgEnotifWatchlist;
-                       if ( $wgEnotifWatchlist ) {
-                               $defaultPreferences['enotifwatchlistpages'] = array(
+                       if ( $config->get( 'EnotifWatchlist' ) ) {
+                               $defaultPreferences['enotifwatchlistpages'] = [
                                        'type' => 'toggle',
                                        'section' => 'personal/email',
                                        'label-message' => 'tog-enotifwatchlistpages',
                                        'disabled' => $disableEmailPrefs,
-                               );
+                               ];
                        }
-                       global $wgEnotifUserTalk;
-                       if ( $wgEnotifUserTalk ) {
-                               $defaultPreferences['enotifusertalkpages'] = array(
+                       if ( $config->get( 'EnotifUserTalk' ) ) {
+                               $defaultPreferences['enotifusertalkpages'] = [
                                        'type' => 'toggle',
                                        'section' => 'personal/email',
                                        'label-message' => 'tog-enotifusertalkpages',
                                        'disabled' => $disableEmailPrefs,
-                               );
+                               ];
                        }
-                       if ( $wgEnotifUserTalk || $wgEnotifWatchlist ) {
-                               $defaultPreferences['enotifminoredits'] = array(
-                                       'type' => 'toggle',
-                                       'section' => 'personal/email',
-                                       'label-message' => 'tog-enotifminoredits',
-                                       'disabled' => $disableEmailPrefs,
-                               );
+                       if ( $config->get( 'EnotifUserTalk' ) || $config->get( 'EnotifWatchlist' ) ) {
+                               if ( $config->get( 'EnotifMinorEdits' ) ) {
+                                       $defaultPreferences['enotifminoredits'] = [
+                                               'type' => 'toggle',
+                                               'section' => 'personal/email',
+                                               'label-message' => 'tog-enotifminoredits',
+                                               'disabled' => $disableEmailPrefs,
+                                       ];
+                               }
 
-                               global $wgEnotifRevealEditorAddress;
-                               if ( $wgEnotifRevealEditorAddress ) {
-                                       $defaultPreferences['enotifrevealaddr'] = array(
+                               if ( $config->get( 'EnotifRevealEditorAddress' ) ) {
+                                       $defaultPreferences['enotifrevealaddr'] = [
                                                'type' => 'toggle',
                                                'section' => 'personal/email',
                                                'label-message' => 'tog-enotifrevealaddr',
                                                'disabled' => $disableEmailPrefs,
-                                       );
+                                       ];
                                }
                        }
                }
        }
 
-       static function skinPreferences( $user, &$defaultPreferences ) {
-               ## Skin #####################################
-               global $wgLang, $wgAllowUserCss, $wgAllowUserJs;
+       /**
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences
+        * @return void
+        */
+       static function skinPreferences( $user, IContextSource $context, &$defaultPreferences ) {
+               # # Skin #####################################
 
-               $defaultPreferences['skin'] = array(
-                       'type' => 'radio',
-                       'options' => self::generateSkinOptions( $user ),
-                       'label' => '&#160;',
-                       'section' => 'rendering/skin',
-               );
+               // Skin selector, if there is at least one valid skin
+               $skinOptions = self::generateSkinOptions( $user, $context );
+               if ( $skinOptions ) {
+                       $defaultPreferences['skin'] = [
+                               'type' => 'radio',
+                               'options' => $skinOptions,
+                               'section' => 'rendering/skin',
+                       ];
+               }
 
+               $config = $context->getConfig();
+               $allowUserCss = $config->get( 'AllowUserCss' );
+               $allowUserJs = $config->get( 'AllowUserJs' );
                # Create links to user CSS/JS pages for all skins
                # This code is basically copied from generateSkinOptions().  It'd
                # be nice to somehow merge this back in there to avoid redundancy.
-               if ( $wgAllowUserCss || $wgAllowUserJs ) {
-                       $sk = $user->getSkin();
-                       $linkTools = array();
-
-                       if ( $wgAllowUserCss ) {
-                               $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/common.css' );
-                               $linkTools[] = $sk->link( $cssPage, wfMsgHtml( 'prefs-custom-css' ) );
+               if ( $allowUserCss || $allowUserJs ) {
+                       $linkTools = [];
+                       $userName = $user->getName();
+
+                       $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
+                       if ( $allowUserCss ) {
+                               $cssPage = Title::makeTitleSafe( NS_USER, $userName . '/common.css' );
+                               $linkTools[] = $linkRenderer->makeLink( $cssPage, $context->msg( 'prefs-custom-css' )->text() );
                        }
 
-                       if ( $wgAllowUserJs ) {
-                               $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/common.js' );
-                               $linkTools[] = $sk->link( $jsPage, wfMsgHtml( 'prefs-custom-js' ) );
+                       if ( $allowUserJs ) {
+                               $jsPage = Title::makeTitleSafe( NS_USER, $userName . '/common.js' );
+                               $linkTools[] = $linkRenderer->makeLink( $jsPage, $context->msg( 'prefs-custom-js' )->text() );
                        }
 
-                       $defaultPreferences['commoncssjs'] = array(
+                       $defaultPreferences['commoncssjs'] = [
                                'type' => 'info',
                                'raw' => true,
-                               'default' => $wgLang->pipeList( $linkTools ),
+                               'default' => $context->getLanguage()->pipeList( $linkTools ),
                                'label-message' => 'prefs-common-css-js',
                                'section' => 'rendering/skin',
-                       );
-               }
-
-               $selectedSkin = $user->getOption( 'skin' );
-               if ( in_array( $selectedSkin, array( 'cologneblue', 'standard' ) ) ) {
-                       $settings = array_flip( $wgLang->getQuickbarSettings() );
-
-                       $defaultPreferences['quickbar'] = array(
-                               'type' => 'radio',
-                               'options' => $settings,
-                               'section' => 'rendering/skin',
-                               'label-message' => 'qbsettings',
-                       );
-               }
-       }
-
-       static function mathPreferences( $user, &$defaultPreferences ) {
-               ## Math #####################################
-               global $wgUseTeX, $wgLang;
-               if ( $wgUseTeX ) {
-                       $defaultPreferences['math'] = array(
-                               'type' => 'radio',
-                               'options' => array_flip( array_map( 'wfMsgHtml', $wgLang->getMathNames() ) ),
-                               'label' => '&#160;',
-                               'section' => 'rendering/math',
-                       );
+                       ];
                }
        }
 
-       static function filesPreferences( $user, &$defaultPreferences ) {
-               ## Files #####################################
-               $defaultPreferences['imagesize'] = array(
+       /**
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences
+        */
+       static function filesPreferences( $user, IContextSource $context, &$defaultPreferences ) {
+               # # Files #####################################
+               $defaultPreferences['imagesize'] = [
                        'type' => 'select',
-                       'options' => self::getImageSizes(),
+                       'options' => self::getImageSizes( $context ),
                        'label-message' => 'imagemaxsize',
                        'section' => 'rendering/files',
-               );
-               $defaultPreferences['thumbsize'] = array(
+               ];
+               $defaultPreferences['thumbsize'] = [
                        'type' => 'select',
-                       'options' => self::getThumbSizes(),
+                       'options' => self::getThumbSizes( $context ),
                        'label-message' => 'thumbsize',
                        'section' => 'rendering/files',
-               );
+               ];
        }
 
-       static function datetimePreferences( $user, &$defaultPreferences ) {
-               global $wgLang;
-
-               ## Date and time #####################################
-               $dateOptions = self::getDateOptions();
+       /**
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences
+        * @return void
+        */
+       static function datetimePreferences( $user, IContextSource $context, &$defaultPreferences ) {
+               # # Date and time #####################################
+               $dateOptions = self::getDateOptions( $context );
                if ( $dateOptions ) {
-                       $defaultPreferences['date'] = array(
+                       $defaultPreferences['date'] = [
                                'type' => 'radio',
                                'options' => $dateOptions,
-                               'label' => '&#160;',
-                               'section' => 'datetime/dateformat',
-                       );
+                               'section' => 'rendering/dateformat',
+                       ];
                }
 
                // Info
-               $nowlocal = Xml::element( 'span', array( 'id' => 'wpLocalTime' ),
-                       $wgLang->time( $now = wfTimestampNow(), true ) );
-               $nowserver = $wgLang->time( $now, false ) .
-                       Html::hidden( 'wpServerTime', substr( $now, 8, 2 ) * 60 + substr( $now, 10, 2 ) );
-
-               $defaultPreferences['nowserver'] = array(
+               $now = wfTimestampNow();
+               $lang = $context->getLanguage();
+               $nowlocal = Xml::element( 'span', [ 'id' => 'wpLocalTime' ],
+                       $lang->userTime( $now, $user ) );
+               $nowserver = $lang->userTime( $now, $user,
+                               [ 'format' => false, 'timecorrection' => false ] ) .
+                       Html::hidden( 'wpServerTime', (int)substr( $now, 8, 2 ) * 60 + (int)substr( $now, 10, 2 ) );
+
+               $defaultPreferences['nowserver'] = [
                        'type' => 'info',
                        'raw' => 1,
                        'label-message' => 'servertime',
                        'default' => $nowserver,
-                       'section' => 'datetime/timeoffset',
-               );
+                       'section' => 'rendering/timeoffset',
+               ];
 
-               $defaultPreferences['nowlocal'] = array(
+               $defaultPreferences['nowlocal'] = [
                        'type' => 'info',
                        'raw' => 1,
                        'label-message' => 'localtime',
                        'default' => $nowlocal,
-                       'section' => 'datetime/timeoffset',
-               );
+                       'section' => 'rendering/timeoffset',
+               ];
 
                // Grab existing pref.
                $tzOffset = $user->getOption( 'timecorrection' );
-               $tz = explode( '|', $tzOffset, 2 );
+               $tz = explode( '|', $tzOffset, 3 );
+
+               $tzOptions = self::getTimezoneOptions( $context );
 
                $tzSetting = $tzOffset;
+               if ( count( $tz ) > 1 && $tz[0] == 'ZoneInfo' &&
+                       !in_array( $tzOffset, HTMLFormField::flattenOptions( $tzOptions ) )
+               ) {
+                       // Timezone offset can vary with DST
+                       try {
+                               $userTZ = new DateTimeZone( $tz[2] );
+                               $minDiff = floor( $userTZ->getOffset( new DateTime( 'now' ) ) / 60 );
+                               $tzSetting = "ZoneInfo|$minDiff|{$tz[2]}";
+                       } catch ( Exception $e ) {
+                               // User has an invalid time zone set. Fall back to just using the offset
+                               $tz[0] = 'Offset';
+                       }
+               }
                if ( count( $tz ) > 1 && $tz[0] == 'Offset' ) {
                        $minDiff = $tz[1];
                        $tzSetting = sprintf( '%+03d:%02d', floor( $minDiff / 60 ), abs( $minDiff ) % 60 );
                }
 
-               $defaultPreferences['timecorrection'] = array(
+               $defaultPreferences['timecorrection'] = [
                        'class' => 'HTMLSelectOrOtherField',
                        'label-message' => 'timezonelegend',
-                       'options' => self::getTimezoneOptions(),
+                       'options' => $tzOptions,
                        'default' => $tzSetting,
                        'size' => 20,
-                       'section' => 'datetime/timeoffset',
-               );
+                       'section' => 'rendering/timeoffset',
+               ];
        }
 
-       static function renderingPreferences( $user, &$defaultPreferences ) {
-               ## Page Rendering ##############################
-               global $wgAllowUserCssPrefs;
-               if ( $wgAllowUserCssPrefs ) {
-                       $defaultPreferences['underline'] = array(
+       /**
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences
+        */
+       static function renderingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
+               # # Diffs ####################################
+               $defaultPreferences['diffonly'] = [
+                       'type' => 'toggle',
+                       'section' => 'rendering/diffs',
+                       'label-message' => 'tog-diffonly',
+               ];
+               $defaultPreferences['norollbackdiff'] = [
+                       'type' => 'toggle',
+                       'section' => 'rendering/diffs',
+                       'label-message' => 'tog-norollbackdiff',
+               ];
+
+               # # Page Rendering ##############################
+               if ( $context->getConfig()->get( 'AllowUserCssPrefs' ) ) {
+                       $defaultPreferences['underline'] = [
                                'type' => 'select',
-                               'options' => array(
-                                       wfMsg( 'underline-never' ) => 0,
-                                       wfMsg( 'underline-always' ) => 1,
-                                       wfMsg( 'underline-default' ) => 2,
-                               ),
+                               'options' => [
+                                       $context->msg( 'underline-never' )->text() => 0,
+                                       $context->msg( 'underline-always' )->text() => 1,
+                                       $context->msg( 'underline-default' )->text() => 2,
+                               ],
                                'label-message' => 'tog-underline',
                                'section' => 'rendering/advancedrendering',
-                       );
+                       ];
                }
 
-               $stubThresholdValues = array( 50, 100, 500, 1000, 2000, 5000, 10000 );
-               $stubThresholdOptions = array( wfMsg( 'stub-threshold-disabled' ) => 0 );
+               $stubThresholdValues = [ 50, 100, 500, 1000, 2000, 5000, 10000 ];
+               $stubThresholdOptions = [ $context->msg( 'stub-threshold-disabled' )->text() => 0 ];
                foreach ( $stubThresholdValues as $value ) {
-                       $stubThresholdOptions[wfMsg( 'size-bytes', $value )] = $value;
+                       $stubThresholdOptions[$context->msg( 'size-bytes', $value )->text()] = $value;
                }
 
-               $defaultPreferences['stubthreshold'] = array(
-                       'type' => 'selectorother',
+               $defaultPreferences['stubthreshold'] = [
+                       'type' => 'select',
                        'section' => 'rendering/advancedrendering',
                        'options' => $stubThresholdOptions,
-                       'size' => 20,
-                       'label' => wfMsg( 'stub-threshold' ), // Raw HTML message. Yay?
-               );
-
-               if ( $wgAllowUserCssPrefs ) {
-                       $defaultPreferences['highlightbroken'] = array(
-                               'type' => 'toggle',
-                               'section' => 'rendering/advancedrendering',
-                               'label' => wfMsg( 'tog-highlightbroken' ), // Raw HTML
-                       );
-                       $defaultPreferences['showtoc'] = array(
-                               'type' => 'toggle',
-                               'section' => 'rendering/advancedrendering',
-                               'label-message' => 'tog-showtoc',
-                       );
-               }
-               $defaultPreferences['nocache'] = array(
-                       'type' => 'toggle',
-                       'label-message' => 'tog-nocache',
-                       'section' => 'rendering/advancedrendering',
-               );
-               $defaultPreferences['showhiddencats'] = array(
+                       // This is not a raw HTML message; label-raw is needed for the manual <a></a>
+                       'label-raw' => $context->msg( 'stub-threshold' )->rawParams(
+                               '<a href="#" class="stub">' .
+                               $context->msg( 'stub-threshold-sample-link' )->parse() .
+                               '</a>' )->parse(),
+               ];
+
+               $defaultPreferences['showhiddencats'] = [
                        'type' => 'toggle',
                        'section' => 'rendering/advancedrendering',
                        'label-message' => 'tog-showhiddencats'
-               );
-               $defaultPreferences['showjumplinks'] = array(
-                       'type' => 'toggle',
-                       'section' => 'rendering/advancedrendering',
-                       'label-message' => 'tog-showjumplinks',
-               );
-
-               if ( $wgAllowUserCssPrefs ) {
-                       $defaultPreferences['justify'] = array(
-                               'type' => 'toggle',
-                               'section' => 'rendering/advancedrendering',
-                               'label-message' => 'tog-justify',
-                       );
-               }
+               ];
 
-               $defaultPreferences['numberheadings'] = array(
+               $defaultPreferences['numberheadings'] = [
                        'type' => 'toggle',
                        'section' => 'rendering/advancedrendering',
                        'label-message' => 'tog-numberheadings',
-               );
+               ];
        }
 
-       static function editingPreferences( $user, &$defaultPreferences ) {
-               global $wgUseExternalEditor, $wgAllowUserCssPrefs;
-
-               ## Editing #####################################
-               $defaultPreferences['cols'] = array(
-                       'type' => 'int',
-                       'label-message' => 'columns',
-                       'section' => 'editing/textboxsize',
-                       'min' => 4,
-                       'max' => 1000,
-               );
-               $defaultPreferences['rows'] = array(
-                       'type' => 'int',
-                       'label-message' => 'rows',
-                       'section' => 'editing/textboxsize',
-                       'min' => 4,
-                       'max' => 1000,
-               );
-
-               if ( $wgAllowUserCssPrefs ) {
-                       $defaultPreferences['editfont'] = array(
-                               'type' => 'select',
-                               'section' => 'editing/advancedediting',
-                               'label-message' => 'editfont-style',
-                               'options' => array(
-                                       wfMsg( 'editfont-default' ) => 'default',
-                                       wfMsg( 'editfont-monospace' ) => 'monospace',
-                                       wfMsg( 'editfont-sansserif' ) => 'sans-serif',
-                                       wfMsg( 'editfont-serif' ) => 'serif',
-                               )
-                       );
-               }
-               $defaultPreferences['previewontop'] = array(
-                       'type' => 'toggle',
-                       'section' => 'editing/advancedediting',
-                       'label-message' => 'tog-previewontop',
-               );
-               $defaultPreferences['previewonfirst'] = array(
-                       'type' => 'toggle',
-                       'section' => 'editing/advancedediting',
-                       'label-message' => 'tog-previewonfirst',
-               );
-
-               if ( $wgAllowUserCssPrefs ) {
-                       $defaultPreferences['editsection'] = array(
-                               'type' => 'toggle',
-                               'section' => 'editing/advancedediting',
-                               'label-message' => 'tog-editsection',
-                       );
-               }
-               $defaultPreferences['editsectiononrightclick'] = array(
+       /**
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences
+        */
+       static function editingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
+               # # Editing #####################################
+               $defaultPreferences['editsectiononrightclick'] = [
                        'type' => 'toggle',
                        'section' => 'editing/advancedediting',
                        'label-message' => 'tog-editsectiononrightclick',
-               );
-               $defaultPreferences['editondblclick'] = array(
+               ];
+               $defaultPreferences['editondblclick'] = [
                        'type' => 'toggle',
                        'section' => 'editing/advancedediting',
                        'label-message' => 'tog-editondblclick',
-               );
-               $defaultPreferences['showtoolbar'] = array(
-                       'type' => 'toggle',
-                       'section' => 'editing/advancedediting',
-                       'label-message' => 'tog-showtoolbar',
-               );
-               $defaultPreferences['minordefault'] = array(
-                       'type' => 'toggle',
-                       'section' => 'editing/advancedediting',
-                       'label-message' => 'tog-minordefault',
-               );
+               ];
 
-               if ( $wgUseExternalEditor ) {
-                       $defaultPreferences['externaleditor'] = array(
-                               'type' => 'toggle',
-                               'section' => 'editing/advancedediting',
-                               'label-message' => 'tog-externaleditor',
-                       );
-                       $defaultPreferences['externaldiff'] = array(
+               if ( $context->getConfig()->get( 'AllowUserCssPrefs' ) ) {
+                       $defaultPreferences['editfont'] = [
+                               'type' => 'select',
+                               'section' => 'editing/editor',
+                               'label-message' => 'editfont-style',
+                               'options' => [
+                                       $context->msg( 'editfont-monospace' )->text() => 'monospace',
+                                       $context->msg( 'editfont-sansserif' )->text() => 'sans-serif',
+                                       $context->msg( 'editfont-serif' )->text() => 'serif',
+                                       $context->msg( 'editfont-default' )->text() => 'default',
+                               ]
+                       ];
+               }
+
+               if ( $user->isAllowed( 'minoredit' ) ) {
+                       $defaultPreferences['minordefault'] = [
                                'type' => 'toggle',
-                               'section' => 'editing/advancedediting',
-                               'label-message' => 'tog-externaldiff',
-                       );
+                               'section' => 'editing/editor',
+                               'label-message' => 'tog-minordefault',
+                       ];
                }
 
-               $defaultPreferences['forceeditsummary'] = array(
+               $defaultPreferences['forceeditsummary'] = [
                        'type' => 'toggle',
-                       'section' => 'editing/advancedediting',
+                       'section' => 'editing/editor',
                        'label-message' => 'tog-forceeditsummary',
-               );
+               ];
+               $defaultPreferences['useeditwarning'] = [
+                       'type' => 'toggle',
+                       'section' => 'editing/editor',
+                       'label-message' => 'tog-useeditwarning',
+               ];
+               $defaultPreferences['showtoolbar'] = [
+                       'type' => 'toggle',
+                       'section' => 'editing/editor',
+                       'label-message' => 'tog-showtoolbar',
+               ];
 
-                               
-               $defaultPreferences['uselivepreview'] = array(
+               $defaultPreferences['previewonfirst'] = [
                        'type' => 'toggle',
-                       'section' => 'editing/advancedediting',
+                       'section' => 'editing/preview',
+                       'label-message' => 'tog-previewonfirst',
+               ];
+               $defaultPreferences['previewontop'] = [
+                       'type' => 'toggle',
+                       'section' => 'editing/preview',
+                       'label-message' => 'tog-previewontop',
+               ];
+               $defaultPreferences['uselivepreview'] = [
+                       'type' => 'toggle',
+                       'section' => 'editing/preview',
                        'label-message' => 'tog-uselivepreview',
-               );
+               ];
        }
 
-       static function rcPreferences( $user, &$defaultPreferences ) {
-               global $wgRCMaxAge, $wgUseRCPatrol, $wgLang;
-
-               ## RecentChanges #####################################
-               $defaultPreferences['rcdays'] = array(
+       /**
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences
+        */
+       static function rcPreferences( $user, IContextSource $context, &$defaultPreferences ) {
+               $config = $context->getConfig();
+               $rcMaxAge = $config->get( 'RCMaxAge' );
+               # # RecentChanges #####################################
+               $defaultPreferences['rcdays'] = [
                        'type' => 'float',
                        'label-message' => 'recentchangesdays',
                        'section' => 'rc/displayrc',
                        'min' => 1,
-                       'max' => ceil( $wgRCMaxAge / ( 3600 * 24 ) ),
-                       'help' => wfMsgExt(
-                               'recentchangesdays-max',
-                               array( 'parsemag' ),
-                               $wgLang->formatNum( ceil( $wgRCMaxAge / ( 3600 * 24 ) ) )
-                       )
-               );
-               $defaultPreferences['rclimit'] = array(
+                       'max' => ceil( $rcMaxAge / ( 3600 * 24 ) ),
+                       'help' => $context->msg( 'recentchangesdays-max' )->numParams(
+                               ceil( $rcMaxAge / ( 3600 * 24 ) ) )->escaped()
+               ];
+               $defaultPreferences['rclimit'] = [
                        'type' => 'int',
+                       'min' => 0,
+                       'max' => 1000,
                        'label-message' => 'recentchangescount',
                        'help-message' => 'prefs-help-recentchangescount',
                        'section' => 'rc/displayrc',
-               );
-               $defaultPreferences['usenewrc'] = array(
+               ];
+               $defaultPreferences['usenewrc'] = [
                        'type' => 'toggle',
                        'label-message' => 'tog-usenewrc',
                        'section' => 'rc/advancedrc',
-               );
-               $defaultPreferences['hideminor'] = array(
+               ];
+               $defaultPreferences['hideminor'] = [
                        'type' => 'toggle',
                        'label-message' => 'tog-hideminor',
                        'section' => 'rc/advancedrc',
-               );
+               ];
+               $defaultPreferences['rcfilters-saved-queries'] = [
+                       'type' => 'api',
+               ];
+               $defaultPreferences['rcfilters-wl-saved-queries'] = [
+                       'type' => 'api',
+               ];
+               $defaultPreferences['rcfilters-rclimit'] = [
+                       'type' => 'api',
+               ];
+
+               if ( $config->get( 'RCWatchCategoryMembership' ) ) {
+                       $defaultPreferences['hidecategorization'] = [
+                               'type' => 'toggle',
+                               'label-message' => 'tog-hidecategorization',
+                               'section' => 'rc/advancedrc',
+                       ];
+               }
 
-               if ( $wgUseRCPatrol ) {
-                       $defaultPreferences['hidepatrolled'] = array(
+               if ( $user->useRCPatrol() ) {
+                       $defaultPreferences['hidepatrolled'] = [
                                'type' => 'toggle',
                                'section' => 'rc/advancedrc',
                                'label-message' => 'tog-hidepatrolled',
-                       );
-                       $defaultPreferences['newpageshidepatrolled'] = array(
+                       ];
+               }
+
+               if ( $user->useNPPatrol() ) {
+                       $defaultPreferences['newpageshidepatrolled'] = [
                                'type' => 'toggle',
                                'section' => 'rc/advancedrc',
                                'label-message' => 'tog-newpageshidepatrolled',
-                       );
+                       ];
                }
 
-               global $wgRCShowWatchingUsers;
-               if ( $wgRCShowWatchingUsers ) {
-                       $defaultPreferences['shownumberswatching'] = array(
+               if ( $config->get( 'RCShowWatchingUsers' ) ) {
+                       $defaultPreferences['shownumberswatching'] = [
                                'type' => 'toggle',
                                'section' => 'rc/advancedrc',
                                'label-message' => 'tog-shownumberswatching',
-                       );
+                       ];
+               }
+
+               if ( $config->get( 'StructuredChangeFiltersShowPreference' ) ) {
+                       $defaultPreferences['rcenhancedfilters-disable'] = [
+                               'type' => 'toggle',
+                               'section' => 'rc/opt-out',
+                               'label-message' => 'rcfilters-preference-label',
+                               'help-message' => 'rcfilters-preference-help',
+                       ];
                }
        }
 
-       static function watchlistPreferences( $user, &$defaultPreferences ) {
-               global $wgUseRCPatrol, $wgEnableAPI;
+       /**
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences
+        */
+       static function watchlistPreferences( $user, IContextSource $context, &$defaultPreferences ) {
+               $config = $context->getConfig();
+               $watchlistdaysMax = ceil( $config->get( 'RCMaxAge' ) / ( 3600 * 24 ) );
+
+               # # Watchlist #####################################
+               if ( $user->isAllowed( 'editmywatchlist' ) ) {
+                       $editWatchlistLinks = [];
+                       $editWatchlistModes = [
+                               'edit' => [ 'EditWatchlist', false ],
+                               'raw' => [ 'EditWatchlist', 'raw' ],
+                               'clear' => [ 'EditWatchlist', 'clear' ],
+                       ];
+                       $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
+                       foreach ( $editWatchlistModes as $editWatchlistMode => $mode ) {
+                               // Messages: prefs-editwatchlist-edit, prefs-editwatchlist-raw, prefs-editwatchlist-clear
+                               $editWatchlistLinks[] = $linkRenderer->makeKnownLink(
+                                       SpecialPage::getTitleFor( $mode[0], $mode[1] ),
+                                       new HtmlArmor( $context->msg( "prefs-editwatchlist-{$editWatchlistMode}" )->parse() )
+                               );
+                       }
+
+                       $defaultPreferences['editwatchlist'] = [
+                               'type' => 'info',
+                               'raw' => true,
+                               'default' => $context->getLanguage()->pipeList( $editWatchlistLinks ),
+                               'label-message' => 'prefs-editwatchlist-label',
+                               'section' => 'watchlist/editwatchlist',
+                       ];
+               }
 
-               ## Watchlist #####################################
-               $defaultPreferences['watchlistdays'] = array(
+               $defaultPreferences['watchlistdays'] = [
                        'type' => 'float',
                        'min' => 0,
-                       'max' => 7,
+                       'max' => $watchlistdaysMax,
                        'section' => 'watchlist/displaywatchlist',
-                       'help' => wfMsgHtml( 'prefs-watchlist-days-max' ),
+                       'help' => $context->msg( 'prefs-watchlist-days-max' )->numParams(
+                               $watchlistdaysMax )->escaped(),
                        'label-message' => 'prefs-watchlist-days',
-               );
-               $defaultPreferences['wllimit'] = array(
+               ];
+               $defaultPreferences['wllimit'] = [
                        'type' => 'int',
                        'min' => 0,
                        'max' => 1000,
                        'label-message' => 'prefs-watchlist-edits',
-                       'help' => wfMsgHtml( 'prefs-watchlist-edits-max' ),
+                       'help' => $context->msg( 'prefs-watchlist-edits-max' )->escaped(),
                        'section' => 'watchlist/displaywatchlist',
-               );
-               $defaultPreferences['extendwatchlist'] = array(
+               ];
+               $defaultPreferences['extendwatchlist'] = [
                        'type' => 'toggle',
                        'section' => 'watchlist/advancedwatchlist',
                        'label-message' => 'tog-extendwatchlist',
-               );
-               $defaultPreferences['watchlisthideminor'] = array(
+               ];
+               $defaultPreferences['watchlisthideminor'] = [
                        'type' => 'toggle',
                        'section' => 'watchlist/advancedwatchlist',
                        'label-message' => 'tog-watchlisthideminor',
-               );
-               $defaultPreferences['watchlisthidebots'] = array(
+               ];
+               $defaultPreferences['watchlisthidebots'] = [
                        'type' => 'toggle',
                        'section' => 'watchlist/advancedwatchlist',
                        'label-message' => 'tog-watchlisthidebots',
-               );
-               $defaultPreferences['watchlisthideown'] = array(
+               ];
+               $defaultPreferences['watchlisthideown'] = [
                        'type' => 'toggle',
                        'section' => 'watchlist/advancedwatchlist',
                        'label-message' => 'tog-watchlisthideown',
-               );
-               $defaultPreferences['watchlisthideanons'] = array(
+               ];
+               $defaultPreferences['watchlisthideanons'] = [
                        'type' => 'toggle',
                        'section' => 'watchlist/advancedwatchlist',
                        'label-message' => 'tog-watchlisthideanons',
-               );
-               $defaultPreferences['watchlisthideliu'] = array(
+               ];
+               $defaultPreferences['watchlisthideliu'] = [
                        'type' => 'toggle',
                        'section' => 'watchlist/advancedwatchlist',
                        'label-message' => 'tog-watchlisthideliu',
-               );
+               ];
+               $defaultPreferences['watchlistreloadautomatically'] = [
+                       'type' => 'toggle',
+                       'section' => 'watchlist/advancedwatchlist',
+                       'label-message' => 'tog-watchlistreloadautomatically',
+               ];
+               $defaultPreferences['watchlistunwatchlinks'] = [
+                       'type' => 'toggle',
+                       'section' => 'watchlist/advancedwatchlist',
+                       'label-message' => 'tog-watchlistunwatchlinks',
+               ];
 
-               if ( $wgUseRCPatrol ) {
-                       $defaultPreferences['watchlisthidepatrolled'] = array(
+               if ( $config->get( 'RCWatchCategoryMembership' ) ) {
+                       $defaultPreferences['watchlisthidecategorization'] = [
                                'type' => 'toggle',
                                'section' => 'watchlist/advancedwatchlist',
-                               'label-message' => 'tog-watchlisthidepatrolled',
-                       );
+                               'label-message' => 'tog-watchlisthidecategorization',
+                       ];
                }
 
-               if ( $wgEnableAPI ) {
-                       # Some random gibberish as a proposed default
-                       $hash = sha1( mt_rand() . microtime( true ) );
-
-                       $defaultPreferences['watchlisttoken'] = array(
-                               'type' => 'text',
+               if ( $user->useRCPatrol() ) {
+                       $defaultPreferences['watchlisthidepatrolled'] = [
+                               'type' => 'toggle',
                                'section' => 'watchlist/advancedwatchlist',
-                               'label-message' => 'prefs-watchlist-token',
-                               'help' => wfMsgHtml( 'prefs-help-watchlist-token', $hash )
-                       );
+                               'label-message' => 'tog-watchlisthidepatrolled',
+                       ];
                }
 
-               $watchTypes = array(
+               $watchTypes = [
                        'edit' => 'watchdefault',
                        'move' => 'watchmoves',
                        'delete' => 'watchdeletion'
-               );
+               ];
 
                // Kinda hacky
                if ( $user->isAllowed( 'createpage' ) || $user->isAllowed( 'createtalk' ) ) {
                        $watchTypes['read'] = 'watchcreations';
                }
 
+               if ( $user->isAllowed( 'rollback' ) ) {
+                       $watchTypes['rollback'] = 'watchrollback';
+               }
+
+               if ( $user->isAllowed( 'upload' ) ) {
+                       $watchTypes['upload'] = 'watchuploads';
+               }
+
                foreach ( $watchTypes as $action => $pref ) {
                        if ( $user->isAllowed( $action ) ) {
-                               $defaultPreferences[$pref] = array(
+                               // Messages:
+                               // tog-watchdefault, tog-watchmoves, tog-watchdeletion, tog-watchcreations, tog-watchuploads
+                               // tog-watchrollback
+                               $defaultPreferences[$pref] = [
                                        'type' => 'toggle',
                                        'section' => 'watchlist/advancedwatchlist',
                                        'label-message' => "tog-$pref",
-                               );
+                               ];
                        }
                }
-       }
-
-       static function searchPreferences( $user, &$defaultPreferences ) {
-               global $wgContLang;
-
-               ## Search #####################################
-               $defaultPreferences['searchlimit'] = array(
-                       'type' => 'int',
-                       'label-message' => 'resultsperpage',
-                       'section' => 'searchoptions/displaysearchoptions',
-                       'min' => 0,
-               );
-               $defaultPreferences['contextlines'] = array(
-                       'type' => 'int',
-                       'label-message' => 'contextlines',
-                       'section' => 'searchoptions/displaysearchoptions',
-                       'min' => 0,
-               );
-               $defaultPreferences['contextchars'] = array(
-                       'type' => 'int',
-                       'label-message' => 'contextchars',
-                       'section' => 'searchoptions/displaysearchoptions',
-                       'min' => 0,
-               );
 
-               global $wgEnableMWSuggest;
-               if ( $wgEnableMWSuggest ) {
-                       $defaultPreferences['disablesuggest'] = array(
-                               'type' => 'toggle',
-                               'label-message' => 'mwsuggest-disable',
-                               'section' => 'searchoptions/displaysearchoptions',
-                       );
-               }
-               
-               global $wgVectorUseSimpleSearch;
-               if ( $wgVectorUseSimpleSearch ) {
-                       $defaultPreferences['vector-simplesearch'] = array(
-                               'type' => 'toggle',
-                               'label-message' => 'vector-simplesearch-preference',
-                               'section' => 'searchoptions/displaysearchoptions'
-                       );
+               if ( $config->get( 'EnableAPI' ) ) {
+                       $defaultPreferences['watchlisttoken'] = [
+                               'type' => 'api',
+                       ];
+                       $defaultPreferences['watchlisttoken-info'] = [
+                               'type' => 'info',
+                               'section' => 'watchlist/tokenwatchlist',
+                               'label-message' => 'prefs-watchlist-token',
+                               'default' => $user->getTokenFromOption( 'watchlisttoken' ),
+                               'help-message' => 'prefs-help-watchlist-token2',
+                       ];
                }
+       }
 
-               $defaultPreferences['searcheverything'] = array(
-                       'type' => 'toggle',
-                       'label-message' => 'searcheverything-enable',
-                       'section' => 'searchoptions/advancedsearchoptions',
-               );
-
-               // Searchable namespaces back-compat with old format
-               $searchableNamespaces = SearchEngine::searchableNamespaces();
-
-               $nsOptions = array();
-
-               foreach ( $wgContLang->getNamespaces() as $ns => $name ) {
-                       if ( $ns < 0 ) {
-                               continue;
-                       }
-
-                       $displayNs = str_replace( '_', ' ', $name );
-
-                       if ( !$displayNs ) {
-                               $displayNs = wfMsg( 'blanknamespace' );
-                       }
-
-                       $displayNs = htmlspecialchars( $displayNs );
-                       $nsOptions[$displayNs] = $ns;
+       /**
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences
+        */
+       static function searchPreferences( $user, IContextSource $context, &$defaultPreferences ) {
+               foreach ( MWNamespace::getValidNamespaces() as $n ) {
+                       $defaultPreferences['searchNs' . $n] = [
+                               'type' => 'api',
+                       ];
                }
-
-               $defaultPreferences['searchnamespaces'] = array(
-                       'type' => 'multiselect',
-                       'label-message' => 'defaultns',
-                       'options' => $nsOptions,
-                       'section' => 'searchoptions/advancedsearchoptions',
-                       'prefix' => 'searchNs',
-               );
        }
 
-       static function miscPreferences( $user, &$defaultPreferences ) {
-               ## Misc #####################################
-               $defaultPreferences['diffonly'] = array(
-                       'type' => 'toggle',
-                       'section' => 'misc/diffs',
-                       'label-message' => 'tog-diffonly',
-               );
-               $defaultPreferences['norollbackdiff'] = array(
-                       'type' => 'toggle',
-                       'section' => 'misc/diffs',
-                       'label-message' => 'tog-norollbackdiff',
-               );
-
-               // Stuff from Language::getExtraUserToggles()
-               global $wgContLang;
-
-               $toggles = $wgContLang->getExtraUserToggles();
-
-               foreach ( $toggles as $toggle ) {
-                       $defaultPreferences[$toggle] = array(
-                               'type' => 'toggle',
-                               'section' => 'personal/i18n',
-                               'label-message' => "tog-$toggle",
-                       );
-               }
+       /**
+        * Dummy, kept for backwards-compatibility.
+        * @param User $user
+        * @param IContextSource $context
+        * @param array &$defaultPreferences
+        */
+       static function miscPreferences( $user, IContextSource $context, &$defaultPreferences ) {
        }
 
        /**
-        * @param $user The User object
-        * @return Array: text/links to display as key; $skinkey as value
+        * @param User $user The User object
+        * @param IContextSource $context
+        * @return array Text/links to display as key; $skinkey as value
         */
-       static function generateSkinOptions( $user ) {
-               global $wgDefaultSkin, $wgLang, $wgAllowUserCss, $wgAllowUserJs;
-               $ret = array();
+       static function generateSkinOptions( $user, IContextSource $context ) {
+               $ret = [];
 
                $mptitle = Title::newMainPage();
-               $previewtext = wfMsgHtml( 'skin-preview' );
+               $previewtext = $context->msg( 'skin-preview' )->escaped();
 
-               # Only show members of Skin::getSkinNames() rather than
-               # $skinNames (skins is all skin names from Language.php)
-               $validSkinNames = Skin::getUsableSkins();
+               $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
+
+               # Only show skins that aren't disabled in $wgSkipSkins
+               $validSkinNames = Skin::getAllowedSkins();
 
                # Sort by UI skin name. First though need to update validSkinNames as sometimes
                # the skinkey & UI skinname differ (e.g. "standard" skinkey is "Classic" in the UI).
                foreach ( $validSkinNames as $skinkey => &$skinname ) {
-                       $msgName = "skinname-{$skinkey}";
-                       $localisedSkinName = wfMsg( $msgName );
-                       if ( !wfEmptyMsg( $msgName, $localisedSkinName ) ) {
-                               $skinname = htmlspecialchars( $localisedSkinName );
+                       $msg = $context->msg( "skinname-{$skinkey}" );
+                       if ( $msg->exists() ) {
+                               $skinname = htmlspecialchars( $msg->text() );
                        }
                }
                asort( $validSkinNames );
-               $sk = $user->getSkin();
 
+               $config = $context->getConfig();
+               $defaultSkin = $config->get( 'DefaultSkin' );
+               $allowUserCss = $config->get( 'AllowUserCss' );
+               $allowUserJs = $config->get( 'AllowUserJs' );
+
+               $foundDefault = false;
                foreach ( $validSkinNames as $skinkey => $sn ) {
-                       $linkTools = array();
+                       $linkTools = [];
 
                        # Mark the default skin
-                       if ( $skinkey == $wgDefaultSkin ) {
-                               $linkTools[] = wfMsgHtml( 'default' );
+                       if ( strcasecmp( $skinkey, $defaultSkin ) === 0 ) {
+                               $linkTools[] = $context->msg( 'default' )->escaped();
+                               $foundDefault = true;
                        }
 
                        # Create preview link
-                       $mplink = htmlspecialchars( $mptitle->getLocalURL( "useskin=$skinkey" ) );
+                       $mplink = htmlspecialchars( $mptitle->getLocalURL( [ 'useskin' => $skinkey ] ) );
                        $linkTools[] = "<a target='_blank' href=\"$mplink\">$previewtext</a>";
 
                        # Create links to user CSS/JS pages
-                       if ( $wgAllowUserCss ) {
+                       if ( $allowUserCss ) {
                                $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.css' );
-                               $linkTools[] = $sk->link( $cssPage, wfMsgHtml( 'prefs-custom-css' ) );
+                               $linkTools[] = $linkRenderer->makeLink( $cssPage, $context->msg( 'prefs-custom-css' )->text() );
                        }
 
-                       if ( $wgAllowUserJs ) {
+                       if ( $allowUserJs ) {
                                $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.js' );
-                               $linkTools[] = $sk->link( $jsPage, wfMsgHtml( 'prefs-custom-js' ) );
+                               $linkTools[] = $linkRenderer->makeLink( $jsPage, $context->msg( 'prefs-custom-js' )->text() );
                        }
 
-                       $display = $sn . ' ' . wfMsg( 'parentheses', $wgLang->pipeList( $linkTools ) );
+                       $display = $sn . ' ' . $context->msg( 'parentheses' )
+                               ->rawParams( $context->getLanguage()->pipeList( $linkTools ) )
+                               ->escaped();
                        $ret[$display] = $skinkey;
                }
 
+               if ( !$foundDefault ) {
+                       // If the default skin is not available, things are going to break horribly because the
+                       // default value for skin selector will not be a valid value. Let's just not show it then.
+                       return [];
+               }
+
                return $ret;
        }
 
-       static function getDateOptions() {
-               global $wgLang;
-               $dateopts = $wgLang->getDatePreferences();
+       /**
+        * @param IContextSource $context
+        * @return array
+        */
+       static function getDateOptions( IContextSource $context ) {
+               $lang = $context->getLanguage();
+               $dateopts = $lang->getDatePreferences();
 
-               $ret = array();
+               $ret = [];
 
                if ( $dateopts ) {
                        if ( !in_array( 'default', $dateopts ) ) {
-                               $dateopts[] = 'default'; // Make sure default is always valid
-                                                                               // Bug 19237
+                               $dateopts[] = 'default'; // Make sure default is always valid T21237
                        }
 
-                       // KLUGE: site default might not be valid for user language
+                       // FIXME KLUGE: site default might not be valid for user language
                        global $wgDefaultUserOptions;
                        if ( !in_array( $wgDefaultUserOptions['date'], $dateopts ) ) {
                                $wgDefaultUserOptions['date'] = 'default';
@@ -1073,9 +1253,9 @@ class Preferences {
                        $epoch = wfTimestampNow();
                        foreach ( $dateopts as $key ) {
                                if ( $key == 'default' ) {
-                                       $formatted = wfMsgHtml( 'datedefault' );
+                                       $formatted = $context->msg( 'datedefault' )->escaped();
                                } else {
-                                       $formatted = htmlspecialchars( $wgLang->timeanddate( $epoch, false, $key ) );
+                                       $formatted = htmlspecialchars( $lang->timeanddate( $epoch, false, $key ) );
                                }
                                $ret[$formatted] = $key;
                        }
@@ -1083,151 +1263,206 @@ class Preferences {
                return $ret;
        }
 
-       static function getImageSizes() {
-               global $wgImageLimits;
-
-               $ret = array();
+       /**
+        * @param IContextSource $context
+        * @return array
+        */
+       static function getImageSizes( IContextSource $context ) {
+               $ret = [];
+               $pixels = $context->msg( 'unit-pixel' )->text();
 
-               foreach ( $wgImageLimits as $index => $limits ) {
-                       $display = "{$limits[0]}×{$limits[1]}" . wfMsg( 'unit-pixel' );
+               foreach ( $context->getConfig()->get( 'ImageLimits' ) as $index => $limits ) {
+                       // Note: A left-to-right marker (\u200e) is inserted, see T144386
+                       $display = "{$limits[0]}" . json_decode( '"\u200e"' ) . "×{$limits[1]}" . $pixels;
                        $ret[$display] = $index;
                }
 
                return $ret;
        }
 
-       static function getThumbSizes() {
-               global $wgThumbLimits;
-
-               $ret = array();
+       /**
+        * @param IContextSource $context
+        * @return array
+        */
+       static function getThumbSizes( IContextSource $context ) {
+               $ret = [];
+               $pixels = $context->msg( 'unit-pixel' )->text();
 
-               foreach ( $wgThumbLimits as $index => $size ) {
-                       $display = $size . wfMsg( 'unit-pixel' );
+               foreach ( $context->getConfig()->get( 'ThumbLimits' ) as $index => $size ) {
+                       $display = $size . $pixels;
                        $ret[$display] = $index;
                }
 
                return $ret;
        }
 
-       static function validateSignature( $signature, $alldata ) {
-               global $wgParser, $wgMaxSigChars, $wgLang;
-               if ( mb_strlen( $signature ) > $wgMaxSigChars ) {
-                       return Xml::element( 'span', array( 'class' => 'error' ),
-                               wfMsgExt( 'badsiglength', 'parsemag',
-                                       $wgLang->formatNum( $wgMaxSigChars )
-                               )
-                       );
+       /**
+        * @param string $signature
+        * @param array $alldata
+        * @param HTMLForm $form
+        * @return bool|string
+        */
+       static function validateSignature( $signature, $alldata, $form ) {
+               global $wgParser;
+               $maxSigChars = $form->getConfig()->get( 'MaxSigChars' );
+               if ( mb_strlen( $signature ) > $maxSigChars ) {
+                       return Xml::element( 'span', [ 'class' => 'error' ],
+                               $form->msg( 'badsiglength' )->numParams( $maxSigChars )->text() );
                } elseif ( isset( $alldata['fancysig'] ) &&
                                $alldata['fancysig'] &&
-                               false === $wgParser->validateSig( $signature ) ) {
-                       return Xml::element( 'span', array( 'class' => 'error' ), wfMsg( 'badsig' ) );
+                               $wgParser->validateSig( $signature ) === false
+               ) {
+                       return Xml::element(
+                               'span',
+                               [ 'class' => 'error' ],
+                               $form->msg( 'badsig' )->text()
+                       );
                } else {
                        return true;
                }
        }
 
-       static function cleanSignature( $signature, $alldata ) {
-               global $wgParser;
+       /**
+        * @param string $signature
+        * @param array $alldata
+        * @param HTMLForm $form
+        * @return string
+        */
+       static function cleanSignature( $signature, $alldata, $form ) {
                if ( isset( $alldata['fancysig'] ) && $alldata['fancysig'] ) {
+                       global $wgParser;
                        $signature = $wgParser->cleanSig( $signature );
                } else {
                        // When no fancy sig used, make sure ~{3,5} get removed.
-                       $signature = $wgParser->cleanSigInSig( $signature );
+                       $signature = Parser::cleanSigInSig( $signature );
                }
 
                return $signature;
        }
 
-       static function validateEmail( $email, $alldata ) {
-               if ( $email && !User::isValidEmailAddr( $email ) ) {
-                       return wfMsgExt( 'invalidemailaddress', 'parseinline' );
+       /**
+        * @param User $user
+        * @param IContextSource $context
+        * @param string $formClass
+        * @param array $remove Array of items to remove
+        * @return PreferencesForm|HtmlForm
+        */
+       static function getFormObject(
+               $user,
+               IContextSource $context,
+               $formClass = 'PreferencesForm',
+               array $remove = []
+       ) {
+               $formDescriptor = self::getPreferences( $user, $context );
+               if ( count( $remove ) ) {
+                       $removeKeys = array_flip( $remove );
+                       $formDescriptor = array_diff_key( $formDescriptor, $removeKeys );
                }
 
-               global $wgEmailConfirmToEdit;
-               if ( $wgEmailConfirmToEdit && !$email ) {
-                       return wfMsgExt( 'noemailtitle', 'parseinline' );
+               // Remove type=api preferences. They are not intended for rendering in the form.
+               foreach ( $formDescriptor as $name => $info ) {
+                       if ( isset( $info['type'] ) && $info['type'] === 'api' ) {
+                               unset( $formDescriptor[$name] );
+                       }
                }
-               return true;
-       }
 
-       static function getFormObject( $user, $formClass = 'PreferencesForm' ) {
-               $formDescriptor = Preferences::getPreferences( $user );
-               $htmlForm = new $formClass( $formDescriptor, 'prefs' );
+               /**
+                * @var $htmlForm PreferencesForm
+                */
+               $htmlForm = new $formClass( $formDescriptor, $context, 'prefs' );
 
-               $htmlForm->setSubmitText( wfMsg( 'saveprefs' ) );
+               $htmlForm->setModifiedUser( $user );
+               $htmlForm->setId( 'mw-prefs-form' );
+               $htmlForm->setAutocomplete( 'off' );
+               $htmlForm->setSubmitText( $context->msg( 'saveprefs' )->text() );
                # Used message keys: 'accesskey-preferences-save', 'tooltip-preferences-save'
                $htmlForm->setSubmitTooltip( 'preferences-save' );
-               $htmlForm->setTitle( SpecialPage::getTitleFor( 'Preferences' ) );
-               $htmlForm->setSubmitID( 'prefsubmit' );
-               $htmlForm->setSubmitCallback( array( 'Preferences', 'tryFormSubmit' ) );
+               $htmlForm->setSubmitID( 'prefcontrol' );
+               $htmlForm->setSubmitCallback( [ 'Preferences', 'tryFormSubmit' ] );
 
                return $htmlForm;
        }
 
-       static function getTimezoneOptions() {
-               $opt = array();
-
-               global $wgLocalTZoffset;
-
-               $opt[wfMsg( 'timezoneuseserverdefault' )] = "System|$wgLocalTZoffset";
-               $opt[wfMsg( 'timezoneuseoffset' )] = 'other';
-               $opt[wfMsg( 'guesstimezone' )] = 'guess';
-
-               if ( function_exists( 'timezone_identifiers_list' ) ) {
-                       # Read timezone list
-                       $tzs = timezone_identifiers_list();
-                       sort( $tzs );
-
-                       $tzRegions = array();
-                       $tzRegions['Africa'] = wfMsg( 'timezoneregion-africa' );
-                       $tzRegions['America'] = wfMsg( 'timezoneregion-america' );
-                       $tzRegions['Antarctica'] = wfMsg( 'timezoneregion-antarctica' );
-                       $tzRegions['Arctic'] = wfMsg( 'timezoneregion-arctic' );
-                       $tzRegions['Asia'] = wfMsg( 'timezoneregion-asia' );
-                       $tzRegions['Atlantic'] = wfMsg( 'timezoneregion-atlantic' );
-                       $tzRegions['Australia'] = wfMsg( 'timezoneregion-australia' );
-                       $tzRegions['Europe'] = wfMsg( 'timezoneregion-europe' );
-                       $tzRegions['Indian'] = wfMsg( 'timezoneregion-indian' );
-                       $tzRegions['Pacific'] = wfMsg( 'timezoneregion-pacific' );
-                       asort( $tzRegions );
-
-                       $prefill = array_fill_keys( array_values( $tzRegions ), array() );
-                       $opt = array_merge( $opt, $prefill );
-
-                       $now = date_create( 'now' );
-
-                       foreach ( $tzs as $tz ) {
-                               $z = explode( '/', $tz, 2 );
-
-                               # timezone_identifiers_list() returns a number of
-                               # backwards-compatibility entries. This filters them out of the
-                               # list presented to the user.
-                               if ( count( $z ) != 2 || !array_key_exists( $z[0], $tzRegions ) ) {
-                                       continue;
-                               }
-
-                               # Localize region
-                               $z[0] = $tzRegions[$z[0]];
-
-                               $minDiff = floor( timezone_offset_get( timezone_open( $tz ), $now ) / 60 );
-
-                               $display = str_replace( '_', ' ', $z[0] . '/' . $z[1] );
-                               $value = "ZoneInfo|$minDiff|$tz";
-
-                               $opt[$z[0]][$display] = $value;
+       /**
+        * @param IContextSource $context
+        * @return array
+        */
+       static function getTimezoneOptions( IContextSource $context ) {
+               $opt = [];
+
+               $localTZoffset = $context->getConfig()->get( 'LocalTZoffset' );
+               $timeZoneList = self::getTimeZoneList( $context->getLanguage() );
+
+               $timestamp = MWTimestamp::getLocalInstance();
+               // Check that the LocalTZoffset is the same as the local time zone offset
+               if ( $localTZoffset == $timestamp->format( 'Z' ) / 60 ) {
+                       $timezoneName = $timestamp->getTimezone()->getName();
+                       // Localize timezone
+                       if ( isset( $timeZoneList[$timezoneName] ) ) {
+                               $timezoneName = $timeZoneList[$timezoneName]['name'];
+                       }
+                       $server_tz_msg = $context->msg(
+                               'timezoneuseserverdefault',
+                               $timezoneName
+                       )->text();
+               } else {
+                       $tzstring = sprintf(
+                               '%+03d:%02d',
+                               floor( $localTZoffset / 60 ),
+                               abs( $localTZoffset ) % 60
+                       );
+                       $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $tzstring )->text();
+               }
+               $opt[$server_tz_msg] = "System|$localTZoffset";
+               $opt[$context->msg( 'timezoneuseoffset' )->text()] = 'other';
+               $opt[$context->msg( 'guesstimezone' )->text()] = 'guess';
+
+               foreach ( $timeZoneList as $timeZoneInfo ) {
+                       $region = $timeZoneInfo['region'];
+                       if ( !isset( $opt[$region] ) ) {
+                               $opt[$region] = [];
                        }
+                       $opt[$region][$timeZoneInfo['name']] = $timeZoneInfo['timecorrection'];
                }
                return $opt;
        }
-       
-       static function filterIntval( $value, $alldata ){
+
+       /**
+        * @param string $value
+        * @param array $alldata
+        * @return int
+        */
+       static function filterIntval( $value, $alldata ) {
                return intval( $value );
        }
 
+       /**
+        * @param string $tz
+        * @param array $alldata
+        * @return string
+        */
        static function filterTimezoneInput( $tz, $alldata ) {
                $data = explode( '|', $tz, 3 );
                switch ( $data[0] ) {
                        case 'ZoneInfo':
+                               $valid = false;
+
+                               if ( count( $data ) === 3 ) {
+                                       // Make sure this timezone exists
+                                       try {
+                                               new DateTimeZone( $data[2] );
+                                               // If the constructor didn't throw, we know it's valid
+                                               $valid = true;
+                                       } catch ( Exception $e ) {
+                                               // Not a valid timezone
+                                       }
+                               }
+
+                               if ( !$valid ) {
+                                       // If the supplied timezone doesn't exist, fall back to the encoded offset
+                                       return 'Offset|' . intval( $tz[1] );
+                               }
+                               return $tz;
                        case 'System':
                                return $tz;
                        default:
@@ -1236,24 +1471,37 @@ class Preferences {
                                        $data[0] = intval( $data[0] );
                                        $data[1] = intval( $data[1] );
                                        $minDiff = abs( $data[0] ) * 60 + $data[1];
-                                       if ( $data[0] < 0 ) $minDiff = - $minDiff;
+                                       if ( $data[0] < 0 ) {
+                                               $minDiff = - $minDiff;
+                                       }
                                } else {
                                        $minDiff = intval( $data[0] ) * 60;
                                }
 
                                # Max is +14:00 and min is -12:00, see:
-                               # http://en.wikipedia.org/wiki/Timezone
+                               # https://en.wikipedia.org/wiki/Timezone
                                $minDiff = min( $minDiff, 840 );  # 14:00
-                               $minDiff = max( $minDiff, - 720 ); # -12:00
+                               $minDiff = max( $minDiff, -720 ); # -12:00
                                return 'Offset|' . $minDiff;
                }
        }
 
-       static function tryFormSubmit( $formData, $entryPoint = 'internal' ) {
-               global $wgUser, $wgEmailAuthentication, $wgEnableEmail;
-
+       /**
+        * Handle the form submission if everything validated properly
+        *
+        * @param array $formData
+        * @param PreferencesForm $form
+        * @return bool|Status|string
+        */
+       static function tryFormSubmit( $formData, $form ) {
+               $user = $form->getModifiedUser();
+               $hiddenPrefs = $form->getConfig()->get( 'HiddenPrefs' );
                $result = true;
 
+               if ( !$user->isAllowedAny( 'editmyprivateinfo', 'editmyoptions' ) ) {
+                       return Status::newFatal( 'mypreferencesprotected' );
+               }
+
                // Filter input
                foreach ( array_keys( $formData ) as $name ) {
                        if ( isset( self::$saveFilters[$name] ) ) {
@@ -1262,140 +1510,140 @@ class Preferences {
                        }
                }
 
-               // Stuff that shouldn't be saved as a preference.
-               $saveBlacklist = array(
-                       'realname',
-                       'emailaddress',
-               );
-
-               if ( $wgEnableEmail ) {
-                       $newaddr = $formData['emailaddress'];
-                       $oldaddr = $wgUser->getEmail();
-                       if ( ( $newaddr != '' ) && ( $newaddr != $oldaddr ) ) {
-                               # the user has supplied a new email address on the login page
-                               # new behaviour: set this new emailaddr from login-page into user database record
-                               $wgUser->setEmail( $newaddr );
-                               # but flag as "dirty" = unauthenticated
-                               $wgUser->invalidateEmail();
-                               if ( $wgEmailAuthentication ) {
-                                       # Mail a temporary password to the dirty address.
-                                       # User can come back through the confirmation URL to re-enable email.
-                                       $type = $oldaddr != '' ? 'changed' : 'set';
-                                       $result = $wgUser->sendConfirmationMail( $type );
-                                       if ( !$result->isGood() ) {
-                                               return htmlspecialchars( $result->getWikiText( 'mailerror' ) );
-                                       } elseif ( $entryPoint == 'ui' ) {
-                                               $result = 'eauth';
-                                       }
-                               }
-                       } else {
-                               $wgUser->setEmail( $newaddr );
-                       }
-                       if ( $oldaddr != $newaddr ) {
-                               wfRunHooks( 'PrefsEmailAudit', array( $wgUser, $oldaddr, $newaddr ) );
-                       }
-               }
-
                // Fortunately, the realname field is MUCH simpler
-               global $wgHiddenPrefs;
-               if ( !in_array( 'realname', $wgHiddenPrefs ) ) {
+               // (not really "private", but still shouldn't be edited without permission)
+
+               if ( !in_array( 'realname', $hiddenPrefs )
+                       && $user->isAllowed( 'editmyprivateinfo' )
+                       && array_key_exists( 'realname', $formData )
+               ) {
                        $realName = $formData['realname'];
-                       $wgUser->setRealName( $realName );
+                       $user->setRealName( $realName );
                }
 
-               foreach ( $saveBlacklist as $b ) {
-                       unset( $formData[$b] );
-               }
+               if ( $user->isAllowed( 'editmyoptions' ) ) {
+                       $oldUserOptions = $user->getOptions();
+
+                       foreach ( self::$saveBlacklist as $b ) {
+                               unset( $formData[$b] );
+                       }
+
+                       # If users have saved a value for a preference which has subsequently been disabled
+                       # via $wgHiddenPrefs, we don't want to destroy that setting in case the preference
+                       # is subsequently re-enabled
+                       foreach ( $hiddenPrefs as $pref ) {
+                               # If the user has not set a non-default value here, the default will be returned
+                               # and subsequently discarded
+                               $formData[$pref] = $user->getOption( $pref, null, true );
+                       }
 
-               //  Keeps old preferences from interfering due to back-compat
-               //  code, etc.
-               $wgUser->resetOptions();
+                       // Keep old preferences from interfering due to back-compat code, etc.
+                       $user->resetOptions( 'unused', $form->getContext() );
 
-               foreach ( $formData as $key => $value ) {
-                       $wgUser->setOption( $key, $value );
+                       foreach ( $formData as $key => $value ) {
+                               $user->setOption( $key, $value );
+                       }
+
+                       Hooks::run(
+                               'PreferencesFormPreSave',
+                               [ $formData, $form, $user, &$result, $oldUserOptions ]
+                       );
                }
 
-               $wgUser->saveSettings();
+               MediaWiki\Auth\AuthManager::callLegacyAuthPlugin( 'updateExternalDB', [ $user ] );
+               $user->saveSettings();
 
                return $result;
        }
 
-       public static function tryUISubmit( $formData ) {
-               $res = self::tryFormSubmit( $formData, 'ui' );
+       /**
+        * @param array $formData
+        * @param PreferencesForm $form
+        * @return Status
+        */
+       public static function tryUISubmit( $formData, $form ) {
+               $res = self::tryFormSubmit( $formData, $form );
 
                if ( $res ) {
-                       $urlOptions = array( 'success' );
+                       $urlOptions = [];
 
                        if ( $res === 'eauth' ) {
-                               $urlOptions[] = 'eauth';
+                               $urlOptions['eauth'] = 1;
                        }
 
-                       $queryString = implode( '&', $urlOptions );
+                       $urlOptions += $form->getExtraSuccessRedirectParameters();
+
+                       $url = $form->getTitle()->getFullURL( $urlOptions );
 
-                       $url = SpecialPage::getTitleFor( 'Preferences' )->getFullURL( $queryString );
+                       $context = $form->getContext();
+                       // Set session data for the success message
+                       $context->getRequest()->getSession()->set( 'specialPreferencesSaveSuccess', 1 );
 
-                       global $wgOut;
-                       $wgOut->redirect( $url );
+                       $context->getOutput()->redirect( $url );
                }
 
                return Status::newGood();
        }
 
-       public static function loadOldSearchNs( $user ) {
-               $searchableNamespaces = SearchEngine::searchableNamespaces();
-               // Back compat with old format
-               $arr = array();
-
-               foreach ( $searchableNamespaces as $ns => $name ) {
-                       if ( $user->getOption( 'searchNs' . $ns ) ) {
-                               $arr[] = $ns;
-                       }
+       /**
+        * Get a list of all time zones
+        * @param Language $language Language used for the localized names
+        * @return array A list of all time zones. The system name of the time zone is used as key and
+        *  the value is an array which contains localized name, the timecorrection value used for
+        *  preferences and the region
+        * @since 1.26
+        */
+       public static function getTimeZoneList( Language $language ) {
+               $identifiers = DateTimeZone::listIdentifiers();
+               if ( $identifiers === false ) {
+                       return [];
                }
+               sort( $identifiers );
+
+               $tzRegions = [
+                       'Africa' => wfMessage( 'timezoneregion-africa' )->inLanguage( $language )->text(),
+                       'America' => wfMessage( 'timezoneregion-america' )->inLanguage( $language )->text(),
+                       'Antarctica' => wfMessage( 'timezoneregion-antarctica' )->inLanguage( $language )->text(),
+                       'Arctic' => wfMessage( 'timezoneregion-arctic' )->inLanguage( $language )->text(),
+                       'Asia' => wfMessage( 'timezoneregion-asia' )->inLanguage( $language )->text(),
+                       'Atlantic' => wfMessage( 'timezoneregion-atlantic' )->inLanguage( $language )->text(),
+                       'Australia' => wfMessage( 'timezoneregion-australia' )->inLanguage( $language )->text(),
+                       'Europe' => wfMessage( 'timezoneregion-europe' )->inLanguage( $language )->text(),
+                       'Indian' => wfMessage( 'timezoneregion-indian' )->inLanguage( $language )->text(),
+                       'Pacific' => wfMessage( 'timezoneregion-pacific' )->inLanguage( $language )->text(),
+               ];
+               asort( $tzRegions );
+
+               $timeZoneList = [];
+
+               $now = new DateTime();
+
+               foreach ( $identifiers as $identifier ) {
+                       $parts = explode( '/', $identifier, 2 );
+
+                       // DateTimeZone::listIdentifiers() returns a number of
+                       // backwards-compatibility entries. This filters them out of the
+                       // list presented to the user.
+                       if ( count( $parts ) !== 2 || !array_key_exists( $parts[0], $tzRegions ) ) {
+                               continue;
+                       }
 
-               return $arr;
-       }
-}
-
-/** Some tweaks to allow js prefs to work */
-class PreferencesForm extends HTMLForm {
-       function wrapForm( $html ) {
-               $html = Xml::tags( 'div', array( 'id' => 'preferences' ), $html );
-
-               return parent::wrapForm( $html );
-       }
-
-       function getButtons() {
-               $html = parent::getButtons();
-
-               global $wgUser;
-
-               $sk = $wgUser->getSkin();
-               $t = SpecialPage::getTitleFor( 'Preferences', 'reset' );
-
-               $html .= "\n" . $sk->link( $t, wfMsgHtml( 'restoreprefs' ) );
+                       // Localize region
+                       $parts[0] = $tzRegions[$parts[0]];
 
-               $html = Xml::tags( 'div', array( 'class' => 'mw-prefs-buttons' ), $html );
+                       $dateTimeZone = new DateTimeZone( $identifier );
+                       $minDiff = floor( $dateTimeZone->getOffset( $now ) / 60 );
 
-               return $html;
-       }
+                       $display = str_replace( '_', ' ', $parts[0] . '/' . $parts[1] );
+                       $value = "ZoneInfo|$minDiff|$identifier";
 
-       function filterDataForSubmit( $data ) {
-               // Support for separating MultiSelect preferences into multiple preferences
-               // Due to lack of array support.
-               foreach ( $this->mFlatFields as $fieldname => $field ) {
-                       $info = $field->mParams;
-                       if ( $field instanceof HTMLMultiSelectField ) {
-                               $options = HTMLFormField::flattenOptions( $info['options'] );
-                               $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $fieldname;
-
-                               foreach ( $options as $opt ) {
-                                       $data["$prefix$opt"] = in_array( $opt, $data[$fieldname] );
-                               }
-
-                               unset( $data[$fieldname] );
-                       }
+                       $timeZoneList[$identifier] = [
+                               'name' => $display,
+                               'timecorrection' => $value,
+                               'region' => $parts[0],
+                       ];
                }
 
-               return $data;
+               return $timeZoneList;
        }
 }