includes/preferences/DefaultPreferencesFactory.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  */
  20
  21 namespace MediaWiki\Preferences;
  22
  23 use Config;
  24 use DateTime;
  25 use DateTimeZone;
  26 use Exception;
  27 use Hooks;
  28 use Html;
  29 use HTMLForm;
  30 use HTMLFormField;
  31 use IContextSource;
  32 use Language;
  33 use LanguageCode;
  34 use LanguageConverter;
  35 use MediaWiki\Auth\AuthManager;
  36 use MediaWiki\Auth\PasswordAuthenticationRequest;
  37 use MediaWiki\Config\ServiceOptions;
  38 use MediaWiki\Linker\LinkRenderer;
  39 use MediaWiki\MediaWikiServices;
  40 use MessageLocalizer;
  41 use MWException;
  42 use MWTimestamp;
  43 use NamespaceInfo;
  44 use OutputPage;
  45 use Parser;
  46 use ParserOptions;
  47 use PreferencesFormOOUI;
  48 use Psr\Log\LoggerAwareTrait;
  49 use Psr\Log\NullLogger;
  50 use Skin;
  51 use SpecialPage;
  52 use Status;
  53 use Title;
  54 use UnexpectedValueException;
  55 use User;
  56 use UserGroupMembership;
  57 use Xml;
  58
  59 /**
  60  * This is the default implementation of PreferencesFactory.
  61  */
  62 class DefaultPreferencesFactory implements PreferencesFactory {
  63         use LoggerAwareTrait;
  64
  65         /** @var ServiceOptions */
  66         protected $options;
  67
  68         /** @var Language The wiki's content language. */
  69         protected $contLang;
  70
  71         /** @var AuthManager */
  72         protected $authManager;
  73
  74         /** @var LinkRenderer */
  75         protected $linkRenderer;
  76
  77         /** @var NamespaceInfo */
  78         protected $nsInfo;
  79
  80         /**
  81          * TODO Make this a const when we drop HHVM support (T192166)
  82          *
  83          * @var array
  84          * @since 1.34
  85          */
  86         public static $constructorOptions = [
  87                 'AllowUserCss',
  88                 'AllowUserCssPrefs',
  89                 'AllowUserJs',
  90                 'DefaultSkin',
  91                 'DisableLangConversion',
  92                 'EmailAuthentication',
  93                 'EmailConfirmToEdit',
  94                 'EnableEmail',
  95                 'EnableUserEmail',
  96                 'EnableUserEmailBlacklist',
  97                 'EnotifMinorEdits',
  98                 'EnotifRevealEditorAddress',
  99                 'EnotifUserTalk',
 100                 'EnotifWatchlist',
 101                 'HiddenPrefs',
 102                 'ImageLimits',
 103                 'LanguageCode',
 104                 'LocalTZoffset',
 105                 'MaxSigChars',
 106                 'RCMaxAge',
 107                 'RCShowWatchingUsers',
 108                 'RCWatchCategoryMembership',
 109                 'SecureLogin',
 110                 'ThumbLimits',
 111         ];
 112
 113         /**
 114          * Do not call this directly.  Get it from MediaWikiServices.
 115          *
 116          * @param ServiceOptions|Config $options Config accepted for backwards compatibility
 117          * @param Language $contLang
 118          * @param AuthManager $authManager
 119          * @param LinkRenderer $linkRenderer
 120          * @param NamespaceInfo|null $nsInfo
 121          */
 122         public function __construct(
 123                 $options,
 124                 Language $contLang,
 125                 AuthManager $authManager,
 126                 LinkRenderer $linkRenderer,
 127                 NamespaceInfo $nsInfo = null
 128         ) {
 129                 if ( $options instanceof Config ) {
 130                         wfDeprecated( __METHOD__ . ' with Config parameter', '1.34' );
 131                         $options = new ServiceOptions( self::$constructorOptions, $options );
 132                 }
 133
 134                 $options->assertRequiredOptions( self::$constructorOptions );
 135
 136                 if ( !$nsInfo ) {
 137                         wfDeprecated( __METHOD__ . ' with no NamespaceInfo argument', '1.34' );
 138                         $nsInfo = MediaWikiServices::getInstance()->getNamespaceInfo();
 139                 }
 140                 $this->options = $options;
 141                 $this->contLang = $contLang;
 142                 $this->authManager = $authManager;
 143                 $this->linkRenderer = $linkRenderer;
 144                 $this->nsInfo = $nsInfo;
 145                 $this->logger = new NullLogger();
 146         }
 147
 148         /**
 149          * @inheritDoc
 150          */
 151         public function getSaveBlacklist() {
 152                 return [
 153                         'realname',
 154                         'emailaddress',
 155                 ];
 156         }
 157
 158         /**
 159          * @throws MWException
 160          * @param User $user
 161          * @param IContextSource $context
 162          * @return array|null
 163          */
 164         public function getFormDescriptor( User $user, IContextSource $context ) {
 165                 $preferences = [];
 166
 167                 OutputPage::setupOOUI(
 168                         strtolower( $context->getSkin()->getSkinName() ),
 169                         $context->getLanguage()->getDir()
 170                 );
 171
 172                 $canIPUseHTTPS = wfCanIPUseHTTPS( $context->getRequest()->getIP() );
 173                 $this->profilePreferences( $user, $context, $preferences, $canIPUseHTTPS );
 174                 $this->skinPreferences( $user, $context, $preferences );
 175                 $this->datetimePreferences( $user, $context, $preferences );
 176                 $this->filesPreferences( $context, $preferences );
 177                 $this->renderingPreferences( $user, $context, $preferences );
 178                 $this->editingPreferences( $user, $context, $preferences );
 179                 $this->rcPreferences( $user, $context, $preferences );
 180                 $this->watchlistPreferences( $user, $context, $preferences );
 181                 $this->searchPreferences( $preferences );
 182
 183                 Hooks::run( 'GetPreferences', [ $user, &$preferences ] );
 184
 185                 $this->loadPreferenceValues( $user, $context, $preferences );
 186                 $this->logger->debug( "Created form descriptor for user '{$user->getName()}'" );
 187                 return $preferences;
 188         }
 189
 190         /**
 191          * Loads existing values for a given array of preferences
 192          * @throws MWException
 193          * @param User $user
 194          * @param IContextSource $context
 195          * @param array &$defaultPreferences Array to load values for
 196          * @return array|null
 197          */
 198         private function loadPreferenceValues(
 199                 User $user, IContextSource $context, &$defaultPreferences
 200         ) {
 201                 # # Remove preferences that wikis don't want to use
 202                 foreach ( $this->options->get( 'HiddenPrefs' ) as $pref ) {
 203                         if ( isset( $defaultPreferences[$pref] ) ) {
 204                                 unset( $defaultPreferences[$pref] );
 205                         }
 206                 }
 207
 208                 # # Make sure that form fields have their parent set. See T43337.
 209                 $dummyForm = new HTMLForm( [], $context );
 210
 211                 $disable = !$user->isAllowed( 'editmyoptions' );
 212
 213                 $defaultOptions = User::getDefaultOptions();
 214                 $userOptions = $user->getOptions();
 215                 $this->applyFilters( $userOptions, $defaultPreferences, 'filterForForm' );
 216                 # # Prod in defaults from the user
 217                 foreach ( $defaultPreferences as $name => &$info ) {
 218                         $prefFromUser = $this->getOptionFromUser( $name, $info, $userOptions );
 219                         if ( $disable && !in_array( $name, $this->getSaveBlacklist() ) ) {
 220                                 $info['disabled'] = 'disabled';
 221                         }
 222                         $field = HTMLForm::loadInputFromParameters( $name, $info, $dummyForm ); // For validation
 223                         $globalDefault = $defaultOptions[$name] ?? null;
 224
 225                         // If it validates, set it as the default
 226                         if ( isset( $info['default'] ) ) {
 227                                 // Already set, no problem
 228                                 continue;
 229                         } elseif ( !is_null( $prefFromUser ) && // Make sure we're not just pulling nothing
 230                                         $field->validate( $prefFromUser, $user->getOptions() ) === true ) {
 231                                 $info['default'] = $prefFromUser;
 232                         } elseif ( $field->validate( $globalDefault, $user->getOptions() ) === true ) {
 233                                 $info['default'] = $globalDefault;
 234                         } else {
 235                                 throw new MWException( "Global default '$globalDefault' is invalid for field $name" );
 236                         }
 237                 }
 238
 239                 return $defaultPreferences;
 240         }
 241
 242         /**
 243          * Pull option from a user account. Handles stuff like array-type preferences.
 244          *
 245          * @param string $name
 246          * @param array $info
 247          * @param array $userOptions
 248          * @return array|string
 249          */
 250         protected function getOptionFromUser( $name, $info, array $userOptions ) {
 251                 $val = $userOptions[$name] ?? null;
 252
 253                 // Handling for multiselect preferences
 254                 if ( ( isset( $info['type'] ) && $info['type'] == 'multiselect' ) ||
 255                                 ( isset( $info['class'] ) && $info['class'] == \HTMLMultiSelectField::class ) ) {
 256                         $options = HTMLFormField::flattenOptions( $info['options'] );
 257                         $prefix = $info['prefix'] ?? $name;
 258                         $val = [];
 259
 260                         foreach ( $options as $value ) {
 261                                 if ( $userOptions["$prefix$value"] ?? false ) {
 262                                         $val[] = $value;
 263                                 }
 264                         }
 265                 }
 266
 267                 // Handling for checkmatrix preferences
 268                 if ( ( isset( $info['type'] ) && $info['type'] == 'checkmatrix' ) ||
 269                                 ( isset( $info['class'] ) && $info['class'] == \HTMLCheckMatrix::class ) ) {
 270                         $columns = HTMLFormField::flattenOptions( $info['columns'] );
 271                         $rows = HTMLFormField::flattenOptions( $info['rows'] );
 272                         $prefix = $info['prefix'] ?? $name;
 273                         $val = [];
 274
 275                         foreach ( $columns as $column ) {
 276                                 foreach ( $rows as $row ) {
 277                                         if ( $userOptions["$prefix$column-$row"] ?? false ) {
 278                                                 $val[] = "$column-$row";
 279                                         }
 280                                 }
 281                         }
 282                 }
 283
 284                 return $val;
 285         }
 286
 287         /**
 288          * @todo Inject user Language instead of using context.
 289          * @param User $user
 290          * @param IContextSource $context
 291          * @param array &$defaultPreferences
 292          * @param bool $canIPUseHTTPS Whether the user's IP is likely to be able to access the wiki
 293          * via HTTPS.
 294          * @return void
 295          */
 296         protected function profilePreferences(
 297                 User $user, IContextSource $context, &$defaultPreferences, $canIPUseHTTPS
 298         ) {
 299                 // retrieving user name for GENDER and misc.
 300                 $userName = $user->getName();
 301
 302                 # # User info #####################################
 303                 // Information panel
 304                 $defaultPreferences['username'] = [
 305                         'type' => 'info',
 306                         'label-message' => [ 'username', $userName ],
 307                         'default' => $userName,
 308                         'section' => 'personal/info',
 309                 ];
 310
 311                 $lang = $context->getLanguage();
 312
 313                 # Get groups to which the user belongs
 314                 $userEffectiveGroups = $user->getEffectiveGroups();
 315                 $userGroupMemberships = $user->getGroupMemberships();
 316                 $userGroups = $userMembers = $userTempGroups = $userTempMembers = [];
 317                 foreach ( $userEffectiveGroups as $ueg ) {
 318                         if ( $ueg == '*' ) {
 319                                 // Skip the default * group, seems useless here
 320                                 continue;
 321                         }
 322
 323                         $groupStringOrObject = $userGroupMemberships[$ueg] ?? $ueg;
 324
 325                         $userG = UserGroupMembership::getLink( $groupStringOrObject, $context, 'html' );
 326                         $userM = UserGroupMembership::getLink( $groupStringOrObject, $context, 'html',
 327                                 $userName );
 328
 329                         // Store expiring groups separately, so we can place them before non-expiring
 330                         // groups in the list. This is to avoid the ambiguity of something like
 331                         // "administrator, bureaucrat (until X date)" -- users might wonder whether the
 332                         // expiry date applies to both groups, or just the last one
 333                         if ( $groupStringOrObject instanceof UserGroupMembership &&
 334                                 $groupStringOrObject->getExpiry()
 335                         ) {
 336                                 $userTempGroups[] = $userG;
 337                                 $userTempMembers[] = $userM;
 338                         } else {
 339                                 $userGroups[] = $userG;
 340                                 $userMembers[] = $userM;
 341                         }
 342                 }
 343                 sort( $userGroups );
 344                 sort( $userMembers );
 345                 sort( $userTempGroups );
 346                 sort( $userTempMembers );
 347                 $userGroups = array_merge( $userTempGroups, $userGroups );
 348                 $userMembers = array_merge( $userTempMembers, $userMembers );
 349
 350                 $defaultPreferences['usergroups'] = [
 351                         'type' => 'info',
 352                         'label' => $context->msg( 'prefs-memberingroups' )->numParams(
 353                                 count( $userGroups ) )->params( $userName )->parse(),
 354                         'default' => $context->msg( 'prefs-memberingroups-type' )
 355                                 ->rawParams( $lang->commaList( $userGroups ), $lang->commaList( $userMembers ) )
 356                                 ->escaped(),
 357                         'raw' => true,
 358                         'section' => 'personal/info',
 359                 ];
 360
 361                 $contribTitle = SpecialPage::getTitleFor( "Contributions", $userName );
 362                 $formattedEditCount = $lang->formatNum( $user->getEditCount() );
 363                 $editCount = $this->linkRenderer->makeLink( $contribTitle, $formattedEditCount );
 364
 365                 $defaultPreferences['editcount'] = [
 366                         'type' => 'info',
 367                         'raw' => true,
 368                         'label-message' => 'prefs-edits',
 369                         'default' => $editCount,
 370                         'section' => 'personal/info',
 371                 ];
 372
 373                 if ( $user->getRegistration() ) {
 374                         $displayUser = $context->getUser();
 375                         $userRegistration = $user->getRegistration();
 376                         $defaultPreferences['registrationdate'] = [
 377                                 'type' => 'info',
 378                                 'label-message' => 'prefs-registration',
 379                                 'default' => $context->msg(
 380                                         'prefs-registration-date-time',
 381                                         $lang->userTimeAndDate( $userRegistration, $displayUser ),
 382                                         $lang->userDate( $userRegistration, $displayUser ),
 383                                         $lang->userTime( $userRegistration, $displayUser )
 384                                 )->text(),
 385                                 'section' => 'personal/info',
 386                         ];
 387                 }
 388
 389                 $canViewPrivateInfo = $user->isAllowed( 'viewmyprivateinfo' );
 390                 $canEditPrivateInfo = $user->isAllowed( 'editmyprivateinfo' );
 391
 392                 // Actually changeable stuff
 393                 $defaultPreferences['realname'] = [
 394                         // (not really "private", but still shouldn't be edited without permission)
 395                         'type' => $canEditPrivateInfo && $this->authManager->allowsPropertyChange( 'realname' )
 396                                 ? 'text' : 'info',
 397                         'default' => $user->getRealName(),
 398                         'section' => 'personal/info',
 399                         'label-message' => 'yourrealname',
 400                         'help-message' => 'prefs-help-realname',
 401                 ];
 402
 403                 if ( $canEditPrivateInfo && $this->authManager->allowsAuthenticationDataChange(
 404                         new PasswordAuthenticationRequest(), false )->isGood()
 405                 ) {
 406                         $defaultPreferences['password'] = [
 407                                 'type' => 'info',
 408                                 'raw' => true,
 409                                 'default' => (string)new \OOUI\ButtonWidget( [
 410                                         'href' => SpecialPage::getTitleFor( 'ChangePassword' )->getLinkURL( [
 411                                                 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText()
 412                                         ] ),
 413                                         'label' => $context->msg( 'prefs-resetpass' )->text(),
 414                                 ] ),
 415                                 'label-message' => 'yourpassword',
 416                                 'section' => 'personal/info',
 417                         ];
 418                 }
 419                 // Only show prefershttps if secure login is turned on
 420                 if ( $this->options->get( 'SecureLogin' ) && $canIPUseHTTPS ) {
 421                         $defaultPreferences['prefershttps'] = [
 422                                 'type' => 'toggle',
 423                                 'label-message' => 'tog-prefershttps',
 424                                 'help-message' => 'prefs-help-prefershttps',
 425                                 'section' => 'personal/info'
 426                         ];
 427                 }
 428
 429                 $languages = Language::fetchLanguageNames( null, 'mwfile' );
 430                 $languageCode = $this->options->get( 'LanguageCode' );
 431                 if ( !array_key_exists( $languageCode, $languages ) ) {
 432                         $languages[$languageCode] = $languageCode;
 433                         // Sort the array again
 434                         ksort( $languages );
 435                 }
 436
 437                 $options = [];
 438                 foreach ( $languages as $code => $name ) {
 439                         $display = LanguageCode::bcp47( $code ) . ' - ' . $name;
 440                         $options[$display] = $code;
 441                 }
 442                 $defaultPreferences['language'] = [
 443                         'type' => 'select',
 444                         'section' => 'personal/i18n',
 445                         'options' => $options,
 446                         'label-message' => 'yourlanguage',
 447                 ];
 448
 449                 $defaultPreferences['gender'] = [
 450                         'type' => 'radio',
 451                         'section' => 'personal/i18n',
 452                         'options' => [
 453                                 $context->msg( 'parentheses' )
 454                                         ->params( $context->msg( 'gender-unknown' )->plain() )
 455                                         ->escaped() => 'unknown',
 456                                 $context->msg( 'gender-female' )->escaped() => 'female',
 457                                 $context->msg( 'gender-male' )->escaped() => 'male',
 458                         ],
 459                         'label-message' => 'yourgender',
 460                         'help-message' => 'prefs-help-gender',
 461                 ];
 462
 463                 // see if there are multiple language variants to choose from
 464                 if ( !$this->options->get( 'DisableLangConversion' ) ) {
 465                         foreach ( LanguageConverter::$languagesWithVariants as $langCode ) {
 466                                 if ( $langCode == $this->contLang->getCode() ) {
 467                                         if ( !$this->contLang->hasVariants() ) {
 468                                                 continue;
 469                                         }
 470
 471                                         $variants = $this->contLang->getVariants();
 472                                         $variantArray = [];
 473                                         foreach ( $variants as $v ) {
 474                                                 $v = str_replace( '_', '-', strtolower( $v ) );
 475                                                 $variantArray[$v] = $lang->getVariantname( $v, false );
 476                                         }
 477
 478                                         $options = [];
 479                                         foreach ( $variantArray as $code => $name ) {
 480                                                 $display = LanguageCode::bcp47( $code ) . ' - ' . $name;
 481                                                 $options[$display] = $code;
 482                                         }
 483
 484                                         $defaultPreferences['variant'] = [
 485                                                 'label-message' => 'yourvariant',
 486                                                 'type' => 'select',
 487                                                 'options' => $options,
 488                                                 'section' => 'personal/i18n',
 489                                                 'help-message' => 'prefs-help-variant',
 490                                         ];
 491                                 } else {
 492                                         $defaultPreferences["variant-$langCode"] = [
 493                                                 'type' => 'api',
 494                                         ];
 495                                 }
 496                         }
 497                 }
 498
 499                 // show a preview of the old signature first
 500                 $oldsigWikiText = MediaWikiServices::getInstance()->getParser()->preSaveTransform(
 501                         '~~~',
 502                         $context->getTitle(),
 503                         $user,
 504                         ParserOptions::newFromContext( $context )
 505                 );
 506                 $oldsigHTML = Parser::stripOuterParagraph(
 507                         $context->getOutput()->parseAsContent( $oldsigWikiText )
 508                 );
 509                 $defaultPreferences['oldsig'] = [
 510                         'type' => 'info',
 511                         'raw' => true,
 512                         'label-message' => 'tog-oldsig',
 513                         'default' => $oldsigHTML,
 514                         'section' => 'personal/signature',
 515                 ];
 516                 $defaultPreferences['nickname'] = [
 517                         'type' => $this->authManager->allowsPropertyChange( 'nickname' ) ? 'text' : 'info',
 518                         'maxlength' => $this->options->get( 'MaxSigChars' ),
 519                         'label-message' => 'yournick',
 520                         'validation-callback' => function ( $signature, $alldata, HTMLForm $form ) {
 521                                 return $this->validateSignature( $signature, $alldata, $form );
 522                         },
 523                         'section' => 'personal/signature',
 524                         'filter-callback' => function ( $signature, array $alldata, HTMLForm $form ) {
 525                                 return $this->cleanSignature( $signature, $alldata, $form );
 526                         },
 527                 ];
 528                 $defaultPreferences['fancysig'] = [
 529                         'type' => 'toggle',
 530                         'label-message' => 'tog-fancysig',
 531                         // show general help about signature at the bottom of the section
 532                         'help-message' => 'prefs-help-signature',
 533                         'section' => 'personal/signature'
 534                 ];
 535
 536                 # # Email stuff
 537
 538                 if ( $this->options->get( 'EnableEmail' ) ) {
 539                         if ( $canViewPrivateInfo ) {
 540                                 $helpMessages[] = $this->options->get( 'EmailConfirmToEdit' )
 541                                                 ? 'prefs-help-email-required'
 542                                                 : 'prefs-help-email';
 543
 544                                 if ( $this->options->get( 'EnableUserEmail' ) ) {
 545                                         // additional messages when users can send email to each other
 546                                         $helpMessages[] = 'prefs-help-email-others';
 547                                 }
 548
 549                                 $emailAddress = $user->getEmail() ? htmlspecialchars( $user->getEmail() ) : '';
 550                                 if ( $canEditPrivateInfo && $this->authManager->allowsPropertyChange( 'emailaddress' ) ) {
 551                                         $button = new \OOUI\ButtonWidget( [
 552                                                 'href' => SpecialPage::getTitleFor( 'ChangeEmail' )->getLinkURL( [
 553                                                         'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText()
 554                                                 ] ),
 555                                                 'label' =>
 556                                                         $context->msg( $user->getEmail() ? 'prefs-changeemail' : 'prefs-setemail' )->text(),
 557                                         ] );
 558
 559                                         $emailAddress .= $emailAddress == '' ? $button : ( '<br />' . $button );
 560                                 }
 561
 562                                 $defaultPreferences['emailaddress'] = [
 563                                         'type' => 'info',
 564                                         'raw' => true,
 565                                         'default' => $emailAddress,
 566                                         'label-message' => 'youremail',
 567                                         'section' => 'personal/email',
 568                                         'help-messages' => $helpMessages,
 569                                         # 'cssclass' chosen below
 570                                 ];
 571                         }
 572
 573                         $disableEmailPrefs = false;
 574
 575                         if ( $this->options->get( 'EmailAuthentication' ) ) {
 576                                 $emailauthenticationclass = 'mw-email-not-authenticated';
 577                                 if ( $user->getEmail() ) {
 578                                         if ( $user->getEmailAuthenticationTimestamp() ) {
 579                                                 // date and time are separate parameters to facilitate localisation.
 580                                                 // $time is kept for backward compat reasons.
 581                                                 // 'emailauthenticated' is also used in SpecialConfirmemail.php
 582                                                 $displayUser = $context->getUser();
 583                                                 $emailTimestamp = $user->getEmailAuthenticationTimestamp();
 584                                                 $time = $lang->userTimeAndDate( $emailTimestamp, $displayUser );
 585                                                 $d = $lang->userDate( $emailTimestamp, $displayUser );
 586                                                 $t = $lang->userTime( $emailTimestamp, $displayUser );
 587                                                 $emailauthenticated = $context->msg( 'emailauthenticated',
 588                                                         $time, $d, $t )->parse() . '<br />';
 589                                                 $disableEmailPrefs = false;
 590                                                 $emailauthenticationclass = 'mw-email-authenticated';
 591                                         } else {
 592                                                 $disableEmailPrefs = true;
 593                                                 $emailauthenticated = $context->msg( 'emailnotauthenticated' )->parse() . '<br />' .
 594                                                         new \OOUI\ButtonWidget( [
 595                                                                 'href' => SpecialPage::getTitleFor( 'Confirmemail' )->getLinkURL(),
 596                                                                 'label' => $context->msg( 'emailconfirmlink' )->text(),
 597                                                         ] );
 598                                                 $emailauthenticationclass = "mw-email-not-authenticated";
 599                                         }
 600                                 } else {
 601                                         $disableEmailPrefs = true;
 602                                         $emailauthenticated = $context->msg( 'noemailprefs' )->escaped();
 603                                         $emailauthenticationclass = 'mw-email-none';
 604                                 }
 605
 606                                 if ( $canViewPrivateInfo ) {
 607                                         $defaultPreferences['emailauthentication'] = [
 608                                                 'type' => 'info',
 609                                                 'raw' => true,
 610                                                 'section' => 'personal/email',
 611                                                 'label-message' => 'prefs-emailconfirm-label',
 612                                                 'default' => $emailauthenticated,
 613                                                 # Apply the same CSS class used on the input to the message:
 614                                                 'cssclass' => $emailauthenticationclass,
 615                                         ];
 616                                 }
 617                         }
 618
 619                         if ( $this->options->get( 'EnableUserEmail' ) && $user->isAllowed( 'sendemail' ) ) {
 620                                 $defaultPreferences['disablemail'] = [
 621                                         'id' => 'wpAllowEmail',
 622                                         'type' => 'toggle',
 623                                         'invert' => true,
 624                                         'section' => 'personal/email',
 625                                         'label-message' => 'allowemail',
 626                                         'disabled' => $disableEmailPrefs,
 627                                 ];
 628
 629                                 $defaultPreferences['email-allow-new-users'] = [
 630                                         'id' => 'wpAllowEmailFromNewUsers',
 631                                         'type' => 'toggle',
 632                                         'section' => 'personal/email',
 633                                         'label-message' => 'email-allow-new-users-label',
 634                                         'disabled' => $disableEmailPrefs,
 635                                 ];
 636
 637                                 $defaultPreferences['ccmeonemails'] = [
 638                                         'type' => 'toggle',
 639                                         'section' => 'personal/email',
 640                                         'label-message' => 'tog-ccmeonemails',
 641                                         'disabled' => $disableEmailPrefs,
 642                                 ];
 643
 644                                 if ( $this->options->get( 'EnableUserEmailBlacklist' ) ) {
 645                                         $defaultPreferences['email-blacklist'] = [
 646                                                 'type' => 'usersmultiselect',
 647                                                 'label-message' => 'email-blacklist-label',
 648                                                 'section' => 'personal/email',
 649                                                 'disabled' => $disableEmailPrefs,
 650                                                 'filter' => MultiUsernameFilter::class,
 651                                         ];
 652                                 }
 653                         }
 654
 655                         if ( $this->options->get( 'EnotifWatchlist' ) ) {
 656                                 $defaultPreferences['enotifwatchlistpages'] = [
 657                                         'type' => 'toggle',
 658                                         'section' => 'personal/email',
 659                                         'label-message' => 'tog-enotifwatchlistpages',
 660                                         'disabled' => $disableEmailPrefs,
 661                                 ];
 662                         }
 663                         if ( $this->options->get( 'EnotifUserTalk' ) ) {
 664                                 $defaultPreferences['enotifusertalkpages'] = [
 665                                         'type' => 'toggle',
 666                                         'section' => 'personal/email',
 667                                         'label-message' => 'tog-enotifusertalkpages',
 668                                         'disabled' => $disableEmailPrefs,
 669                                 ];
 670                         }
 671                         if ( $this->options->get( 'EnotifUserTalk' ) ||
 672                         $this->options->get( 'EnotifWatchlist' ) ) {
 673                                 if ( $this->options->get( 'EnotifMinorEdits' ) ) {
 674                                         $defaultPreferences['enotifminoredits'] = [
 675                                                 'type' => 'toggle',
 676                                                 'section' => 'personal/email',
 677                                                 'label-message' => 'tog-enotifminoredits',
 678                                                 'disabled' => $disableEmailPrefs,
 679                                         ];
 680                                 }
 681
 682                                 if ( $this->options->get( 'EnotifRevealEditorAddress' ) ) {
 683                                         $defaultPreferences['enotifrevealaddr'] = [
 684                                                 'type' => 'toggle',
 685                                                 'section' => 'personal/email',
 686                                                 'label-message' => 'tog-enotifrevealaddr',
 687                                                 'disabled' => $disableEmailPrefs,
 688                                         ];
 689                                 }
 690                         }
 691                 }
 692         }
 693
 694         /**
 695          * @param User $user
 696          * @param IContextSource $context
 697          * @param array &$defaultPreferences
 698          * @return void
 699          */
 700         protected function skinPreferences( User $user, IContextSource $context, &$defaultPreferences ) {
 701                 # # Skin #####################################
 702
 703                 // Skin selector, if there is at least one valid skin
 704                 $skinOptions = $this->generateSkinOptions( $user, $context );
 705                 if ( $skinOptions ) {
 706                         $defaultPreferences['skin'] = [
 707                                 'type' => 'radio',
 708                                 'options' => $skinOptions,
 709                                 'section' => 'rendering/skin',
 710                         ];
 711                 }
 712
 713                 $allowUserCss = $this->options->get( 'AllowUserCss' );
 714                 $allowUserJs = $this->options->get( 'AllowUserJs' );
 715                 # Create links to user CSS/JS pages for all skins
 716                 # This code is basically copied from generateSkinOptions().  It'd
 717                 # be nice to somehow merge this back in there to avoid redundancy.
 718                 if ( $allowUserCss || $allowUserJs ) {
 719                         $linkTools = [];
 720                         $userName = $user->getName();
 721
 722                         if ( $allowUserCss ) {
 723                                 $cssPage = Title::makeTitleSafe( NS_USER, $userName . '/common.css' );
 724                                 $cssLinkText = $context->msg( 'prefs-custom-css' )->text();
 725                                 $linkTools[] = $this->linkRenderer->makeLink( $cssPage, $cssLinkText );
 726                         }
 727
 728                         if ( $allowUserJs ) {
 729                                 $jsPage = Title::makeTitleSafe( NS_USER, $userName . '/common.js' );
 730                                 $jsLinkText = $context->msg( 'prefs-custom-js' )->text();
 731                                 $linkTools[] = $this->linkRenderer->makeLink( $jsPage, $jsLinkText );
 732                         }
 733
 734                         $defaultPreferences['commoncssjs'] = [
 735                                 'type' => 'info',
 736                                 'raw' => true,
 737                                 'default' => $context->getLanguage()->pipeList( $linkTools ),
 738                                 'label-message' => 'prefs-common-config',
 739                                 'section' => 'rendering/skin',
 740                         ];
 741                 }
 742         }
 743
 744         /**
 745          * @param IContextSource $context
 746          * @param array &$defaultPreferences
 747          */
 748         protected function filesPreferences( IContextSource $context, &$defaultPreferences ) {
 749                 # # Files #####################################
 750                 $defaultPreferences['imagesize'] = [
 751                         'type' => 'select',
 752                         'options' => $this->getImageSizes( $context ),
 753                         'label-message' => 'imagemaxsize',
 754                         'section' => 'rendering/files',
 755                 ];
 756                 $defaultPreferences['thumbsize'] = [
 757                         'type' => 'select',
 758                         'options' => $this->getThumbSizes( $context ),
 759                         'label-message' => 'thumbsize',
 760                         'section' => 'rendering/files',
 761                 ];
 762         }
 763
 764         /**
 765          * @param User $user
 766          * @param IContextSource $context
 767          * @param array &$defaultPreferences
 768          * @return void
 769          */
 770         protected function datetimePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 771                 # # Date and time #####################################
 772                 $dateOptions = $this->getDateOptions( $context );
 773                 if ( $dateOptions ) {
 774                         $defaultPreferences['date'] = [
 775                                 'type' => 'radio',
 776                                 'options' => $dateOptions,
 777                                 'section' => 'rendering/dateformat',
 778                         ];
 779                 }
 780
 781                 // Info
 782                 $now = wfTimestampNow();
 783                 $lang = $context->getLanguage();
 784                 $nowlocal = Xml::element( 'span', [ 'id' => 'wpLocalTime' ],
 785                         $lang->userTime( $now, $user ) );
 786                 $nowserver = $lang->userTime( $now, $user,
 787                                 [ 'format' => false, 'timecorrection' => false ] ) .
 788                         Html::hidden( 'wpServerTime', (int)substr( $now, 8, 2 ) * 60 + (int)substr( $now, 10, 2 ) );
 789
 790                 $defaultPreferences['nowserver'] = [
 791                         'type' => 'info',
 792                         'raw' => 1,
 793                         'label-message' => 'servertime',
 794                         'default' => $nowserver,
 795                         'section' => 'rendering/timeoffset',
 796                 ];
 797
 798                 $defaultPreferences['nowlocal'] = [
 799                         'type' => 'info',
 800                         'raw' => 1,
 801                         'label-message' => 'localtime',
 802                         'default' => $nowlocal,
 803                         'section' => 'rendering/timeoffset',
 804                 ];
 805
 806                 // Grab existing pref.
 807                 $tzOffset = $user->getOption( 'timecorrection' );
 808                 $tz = explode( '|', $tzOffset, 3 );
 809
 810                 $tzOptions = $this->getTimezoneOptions( $context );
 811
 812                 $tzSetting = $tzOffset;
 813                 if ( count( $tz ) > 1 && $tz[0] == 'ZoneInfo' &&
 814                         !in_array( $tzOffset, HTMLFormField::flattenOptions( $tzOptions ) )
 815                 ) {
 816                         // Timezone offset can vary with DST
 817                         try {
 818                                 $userTZ = new DateTimeZone( $tz[2] );
 819                                 $minDiff = floor( $userTZ->getOffset( new DateTime( 'now' ) ) / 60 );
 820                                 $tzSetting = "ZoneInfo|$minDiff|{$tz[2]}";
 821                         } catch ( Exception $e ) {
 822                                 // User has an invalid time zone set. Fall back to just using the offset
 823                                 $tz[0] = 'Offset';
 824                         }
 825                 }
 826                 if ( count( $tz ) > 1 && $tz[0] == 'Offset' ) {
 827                         $minDiff = $tz[1];
 828                         $tzSetting = sprintf( '%+03d:%02d', floor( $minDiff / 60 ), abs( $minDiff ) % 60 );
 829                 }
 830
 831                 $defaultPreferences['timecorrection'] = [
 832                         'class' => \HTMLSelectOrOtherField::class,
 833                         'label-message' => 'timezonelegend',
 834                         'options' => $tzOptions,
 835                         'default' => $tzSetting,
 836                         'size' => 20,
 837                         'section' => 'rendering/timeoffset',
 838                         'id' => 'wpTimeCorrection',
 839                         'filter' => TimezoneFilter::class,
 840                         'placeholder-message' => 'timezone-useoffset-placeholder',
 841                 ];
 842         }
 843
 844         /**
 845          * @param User $user
 846          * @param MessageLocalizer $l10n
 847          * @param array &$defaultPreferences
 848          */
 849         protected function renderingPreferences(
 850                 User $user,
 851                 MessageLocalizer $l10n,
 852                 &$defaultPreferences
 853         ) {
 854                 # # Diffs ####################################
 855                 $defaultPreferences['diffonly'] = [
 856                         'type' => 'toggle',
 857                         'section' => 'rendering/diffs',
 858                         'label-message' => 'tog-diffonly',
 859                 ];
 860                 $defaultPreferences['norollbackdiff'] = [
 861                         'type' => 'toggle',
 862                         'section' => 'rendering/diffs',
 863                         'label-message' => 'tog-norollbackdiff',
 864                 ];
 865
 866                 # # Page Rendering ##############################
 867                 if ( $this->options->get( 'AllowUserCssPrefs' ) ) {
 868                         $defaultPreferences['underline'] = [
 869                                 'type' => 'select',
 870                                 'options' => [
 871                                         $l10n->msg( 'underline-never' )->text() => 0,
 872                                         $l10n->msg( 'underline-always' )->text() => 1,
 873                                         $l10n->msg( 'underline-default' )->text() => 2,
 874                                 ],
 875                                 'label-message' => 'tog-underline',
 876                                 'section' => 'rendering/advancedrendering',
 877                         ];
 878                 }
 879
 880                 $stubThresholdValues = [ 50, 100, 500, 1000, 2000, 5000, 10000 ];
 881                 $stubThresholdOptions = [ $l10n->msg( 'stub-threshold-disabled' )->text() => 0 ];
 882                 foreach ( $stubThresholdValues as $value ) {
 883                         $stubThresholdOptions[$l10n->msg( 'size-bytes', $value )->text()] = $value;
 884                 }
 885
 886                 $defaultPreferences['stubthreshold'] = [
 887                         'type' => 'select',
 888                         'section' => 'rendering/advancedrendering',
 889                         'options' => $stubThresholdOptions,
 890                         // This is not a raw HTML message; label-raw is needed for the manual <a></a>
 891                         'label-raw' => $l10n->msg( 'stub-threshold' )->rawParams(
 892                                 '<a class="stub">' .
 893                                 $l10n->msg( 'stub-threshold-sample-link' )->parse() .
 894                                 '</a>' )->parse(),
 895                 ];
 896
 897                 $defaultPreferences['showhiddencats'] = [
 898                         'type' => 'toggle',
 899                         'section' => 'rendering/advancedrendering',
 900                         'label-message' => 'tog-showhiddencats'
 901                 ];
 902
 903                 $defaultPreferences['numberheadings'] = [
 904                         'type' => 'toggle',
 905                         'section' => 'rendering/advancedrendering',
 906                         'label-message' => 'tog-numberheadings',
 907                 ];
 908
 909                 if ( $user->isAllowed( 'rollback' ) ) {
 910                         $defaultPreferences['showrollbackconfirmation'] = [
 911                                 'type' => 'toggle',
 912                                 'section' => 'rendering/advancedrendering',
 913                                 'label-message' => 'tog-showrollbackconfirmation',
 914                         ];
 915                 }
 916         }
 917
 918         /**
 919          * @param User $user
 920          * @param MessageLocalizer $l10n
 921          * @param array &$defaultPreferences
 922          */
 923         protected function editingPreferences( User $user, MessageLocalizer $l10n, &$defaultPreferences ) {
 924                 # # Editing #####################################
 925                 $defaultPreferences['editsectiononrightclick'] = [
 926                         'type' => 'toggle',
 927                         'section' => 'editing/advancedediting',
 928                         'label-message' => 'tog-editsectiononrightclick',
 929                 ];
 930                 $defaultPreferences['editondblclick'] = [
 931                         'type' => 'toggle',
 932                         'section' => 'editing/advancedediting',
 933                         'label-message' => 'tog-editondblclick',
 934                 ];
 935
 936                 if ( $this->options->get( 'AllowUserCssPrefs' ) ) {
 937                         $defaultPreferences['editfont'] = [
 938                                 'type' => 'select',
 939                                 'section' => 'editing/editor',
 940                                 'label-message' => 'editfont-style',
 941                                 'options' => [
 942                                         $l10n->msg( 'editfont-monospace' )->text() => 'monospace',
 943                                         $l10n->msg( 'editfont-sansserif' )->text() => 'sans-serif',
 944                                         $l10n->msg( 'editfont-serif' )->text() => 'serif',
 945                                 ]
 946                         ];
 947                 }
 948
 949                 if ( $user->isAllowed( 'minoredit' ) ) {
 950                         $defaultPreferences['minordefault'] = [
 951                                 'type' => 'toggle',
 952                                 'section' => 'editing/editor',
 953                                 'label-message' => 'tog-minordefault',
 954                         ];
 955                 }
 956
 957                 $defaultPreferences['forceeditsummary'] = [
 958                         'type' => 'toggle',
 959                         'section' => 'editing/editor',
 960                         'label-message' => 'tog-forceeditsummary',
 961                 ];
 962                 $defaultPreferences['useeditwarning'] = [
 963                         'type' => 'toggle',
 964                         'section' => 'editing/editor',
 965                         'label-message' => 'tog-useeditwarning',
 966                 ];
 967
 968                 $defaultPreferences['previewonfirst'] = [
 969                         'type' => 'toggle',
 970                         'section' => 'editing/preview',
 971                         'label-message' => 'tog-previewonfirst',
 972                 ];
 973                 $defaultPreferences['previewontop'] = [
 974                         'type' => 'toggle',
 975                         'section' => 'editing/preview',
 976                         'label-message' => 'tog-previewontop',
 977                 ];
 978                 $defaultPreferences['uselivepreview'] = [
 979                         'type' => 'toggle',
 980                         'section' => 'editing/preview',
 981                         'label-message' => 'tog-uselivepreview',
 982                 ];
 983         }
 984
 985         /**
 986          * @param User $user
 987          * @param MessageLocalizer $l10n
 988          * @param array &$defaultPreferences
 989          */
 990         protected function rcPreferences( User $user, MessageLocalizer $l10n, &$defaultPreferences ) {
 991                 $rcMaxAge = $this->options->get( 'RCMaxAge' );
 992                 # # RecentChanges #####################################
 993                 $defaultPreferences['rcdays'] = [
 994                         'type' => 'float',
 995                         'label-message' => 'recentchangesdays',
 996                         'section' => 'rc/displayrc',
 997                         'min' => 1 / 24,
 998                         'max' => ceil( $rcMaxAge / ( 3600 * 24 ) ),
 999                         'help' => $l10n->msg( 'recentchangesdays-max' )->numParams(
1000                                 ceil( $rcMaxAge / ( 3600 * 24 ) ) )->escaped()
1001                 ];
1002                 $defaultPreferences['rclimit'] = [
1003                         'type' => 'int',
1004                         'min' => 1,
1005                         'max' => 1000,
1006                         'label-message' => 'recentchangescount',
1007                         'help-message' => 'prefs-help-recentchangescount',
1008                         'section' => 'rc/displayrc',
1009                         'filter' => IntvalFilter::class,
1010                 ];
1011                 $defaultPreferences['usenewrc'] = [
1012                         'type' => 'toggle',
1013                         'label-message' => 'tog-usenewrc',
1014                         'section' => 'rc/advancedrc',
1015                 ];
1016                 $defaultPreferences['hideminor'] = [
1017                         'type' => 'toggle',
1018                         'label-message' => 'tog-hideminor',
1019                         'section' => 'rc/changesrc',
1020                 ];
1021                 $defaultPreferences['rcfilters-rc-collapsed'] = [
1022                         'type' => 'api',
1023                 ];
1024                 $defaultPreferences['rcfilters-wl-collapsed'] = [
1025                         'type' => 'api',
1026                 ];
1027                 $defaultPreferences['rcfilters-saved-queries'] = [
1028                         'type' => 'api',
1029                 ];
1030                 $defaultPreferences['rcfilters-wl-saved-queries'] = [
1031                         'type' => 'api',
1032                 ];
1033                 // Override RCFilters preferences for RecentChanges 'limit'
1034                 $defaultPreferences['rcfilters-limit'] = [
1035                         'type' => 'api',
1036                 ];
1037                 $defaultPreferences['rcfilters-saved-queries-versionbackup'] = [
1038                         'type' => 'api',
1039                 ];
1040                 $defaultPreferences['rcfilters-wl-saved-queries-versionbackup'] = [
1041                         'type' => 'api',
1042                 ];
1043
1044                 if ( $this->options->get( 'RCWatchCategoryMembership' ) ) {
1045                         $defaultPreferences['hidecategorization'] = [
1046                                 'type' => 'toggle',
1047                                 'label-message' => 'tog-hidecategorization',
1048                                 'section' => 'rc/changesrc',
1049                         ];
1050                 }
1051
1052                 if ( $user->useRCPatrol() ) {
1053                         $defaultPreferences['hidepatrolled'] = [
1054                                 'type' => 'toggle',
1055                                 'section' => 'rc/changesrc',
1056                                 'label-message' => 'tog-hidepatrolled',
1057                         ];
1058                 }
1059
1060                 if ( $user->useNPPatrol() ) {
1061                         $defaultPreferences['newpageshidepatrolled'] = [
1062                                 'type' => 'toggle',
1063                                 'section' => 'rc/changesrc',
1064                                 'label-message' => 'tog-newpageshidepatrolled',
1065                         ];
1066                 }
1067
1068                 if ( $this->options->get( 'RCShowWatchingUsers' ) ) {
1069                         $defaultPreferences['shownumberswatching'] = [
1070                                 'type' => 'toggle',
1071                                 'section' => 'rc/advancedrc',
1072                                 'label-message' => 'tog-shownumberswatching',
1073                         ];
1074                 }
1075
1076                 $defaultPreferences['rcenhancedfilters-disable'] = [
1077                         'type' => 'toggle',
1078                         'section' => 'rc/advancedrc',
1079                         'label-message' => 'rcfilters-preference-label',
1080                         'help-message' => 'rcfilters-preference-help',
1081                 ];
1082         }
1083
1084         /**
1085          * @param User $user
1086          * @param IContextSource $context
1087          * @param array &$defaultPreferences
1088          */
1089         protected function watchlistPreferences(
1090                 User $user, IContextSource $context, &$defaultPreferences
1091         ) {
1092                 $watchlistdaysMax = ceil( $this->options->get( 'RCMaxAge' ) / ( 3600 * 24 ) );
1093
1094                 # # Watchlist #####################################
1095                 if ( $user->isAllowed( 'editmywatchlist' ) ) {
1096                         $editWatchlistLinks = '';
1097                         $editWatchlistModes = [
1098                                 'edit' => [ 'subpage' => false, 'flags' => [] ],
1099                                 'raw' => [ 'subpage' => 'raw', 'flags' => [] ],
1100                                 'clear' => [ 'subpage' => 'clear', 'flags' => [ 'destructive' ] ],
1101                         ];
1102                         foreach ( $editWatchlistModes as $mode => $options ) {
1103                                 // Messages: prefs-editwatchlist-edit, prefs-editwatchlist-raw, prefs-editwatchlist-clear
1104                                 $editWatchlistLinks .=
1105                                         new \OOUI\ButtonWidget( [
1106                                                 'href' => SpecialPage::getTitleFor( 'EditWatchlist', $options['subpage'] )->getLinkURL(),
1107                                                 'flags' => $options[ 'flags' ],
1108                                                 'label' => new \OOUI\HtmlSnippet(
1109                                                         $context->msg( "prefs-editwatchlist-{$mode}" )->parse()
1110                                                 ),
1111                                         ] );
1112                         }
1113
1114                         $defaultPreferences['editwatchlist'] = [
1115                                 'type' => 'info',
1116                                 'raw' => true,
1117                                 'default' => $editWatchlistLinks,
1118                                 'label-message' => 'prefs-editwatchlist-label',
1119                                 'section' => 'watchlist/editwatchlist',
1120                         ];
1121                 }
1122
1123                 $defaultPreferences['watchlistdays'] = [
1124                         'type' => 'float',
1125                         'min' => 1 / 24,
1126                         'max' => $watchlistdaysMax,
1127                         'section' => 'watchlist/displaywatchlist',
1128                         'help' => $context->msg( 'prefs-watchlist-days-max' )->numParams(
1129                                 $watchlistdaysMax )->escaped(),
1130                         'label-message' => 'prefs-watchlist-days',
1131                 ];
1132                 $defaultPreferences['wllimit'] = [
1133                         'type' => 'int',
1134                         'min' => 1,
1135                         'max' => 1000,
1136                         'label-message' => 'prefs-watchlist-edits',
1137                         'help' => $context->msg( 'prefs-watchlist-edits-max' )->escaped(),
1138                         'section' => 'watchlist/displaywatchlist',
1139                         'filter' => IntvalFilter::class,
1140                 ];
1141                 $defaultPreferences['extendwatchlist'] = [
1142                         'type' => 'toggle',
1143                         'section' => 'watchlist/advancedwatchlist',
1144                         'label-message' => 'tog-extendwatchlist',
1145                 ];
1146                 $defaultPreferences['watchlisthideminor'] = [
1147                         'type' => 'toggle',
1148                         'section' => 'watchlist/changeswatchlist',
1149                         'label-message' => 'tog-watchlisthideminor',
1150                 ];
1151                 $defaultPreferences['watchlisthidebots'] = [
1152                         'type' => 'toggle',
1153                         'section' => 'watchlist/changeswatchlist',
1154                         'label-message' => 'tog-watchlisthidebots',
1155                 ];
1156                 $defaultPreferences['watchlisthideown'] = [
1157                         'type' => 'toggle',
1158                         'section' => 'watchlist/changeswatchlist',
1159                         'label-message' => 'tog-watchlisthideown',
1160                 ];
1161                 $defaultPreferences['watchlisthideanons'] = [
1162                         'type' => 'toggle',
1163                         'section' => 'watchlist/changeswatchlist',
1164                         'label-message' => 'tog-watchlisthideanons',
1165                 ];
1166                 $defaultPreferences['watchlisthideliu'] = [
1167                         'type' => 'toggle',
1168                         'section' => 'watchlist/changeswatchlist',
1169                         'label-message' => 'tog-watchlisthideliu',
1170                 ];
1171
1172                 if ( !\SpecialWatchlist::checkStructuredFilterUiEnabled( $user ) ) {
1173                         $defaultPreferences['watchlistreloadautomatically'] = [
1174                                 'type' => 'toggle',
1175                                 'section' => 'watchlist/advancedwatchlist',
1176                                 'label-message' => 'tog-watchlistreloadautomatically',
1177                         ];
1178                 }
1179
1180                 $defaultPreferences['watchlistunwatchlinks'] = [
1181                         'type' => 'toggle',
1182                         'section' => 'watchlist/advancedwatchlist',
1183                         'label-message' => 'tog-watchlistunwatchlinks',
1184                 ];
1185
1186                 if ( $this->options->get( 'RCWatchCategoryMembership' ) ) {
1187                         $defaultPreferences['watchlisthidecategorization'] = [
1188                                 'type' => 'toggle',
1189                                 'section' => 'watchlist/changeswatchlist',
1190                                 'label-message' => 'tog-watchlisthidecategorization',
1191                         ];
1192                 }
1193
1194                 if ( $user->useRCPatrol() ) {
1195                         $defaultPreferences['watchlisthidepatrolled'] = [
1196                                 'type' => 'toggle',
1197                                 'section' => 'watchlist/changeswatchlist',
1198                                 'label-message' => 'tog-watchlisthidepatrolled',
1199                         ];
1200                 }
1201
1202                 $watchTypes = [
1203                         'edit' => 'watchdefault',
1204                         'move' => 'watchmoves',
1205                         'delete' => 'watchdeletion'
1206                 ];
1207
1208                 // Kinda hacky
1209                 if ( $user->isAllowed( 'createpage' ) || $user->isAllowed( 'createtalk' ) ) {
1210                         $watchTypes['read'] = 'watchcreations';
1211                 }
1212
1213                 if ( $user->isAllowed( 'rollback' ) ) {
1214                         $watchTypes['rollback'] = 'watchrollback';
1215                 }
1216
1217                 if ( $user->isAllowed( 'upload' ) ) {
1218                         $watchTypes['upload'] = 'watchuploads';
1219                 }
1220
1221                 foreach ( $watchTypes as $action => $pref ) {
1222                         if ( $user->isAllowed( $action ) ) {
1223                                 // Messages:
1224                                 // tog-watchdefault, tog-watchmoves, tog-watchdeletion, tog-watchcreations, tog-watchuploads
1225                                 // tog-watchrollback
1226                                 $defaultPreferences[$pref] = [
1227                                         'type' => 'toggle',
1228                                         'section' => 'watchlist/pageswatchlist',
1229                                         'label-message' => "tog-$pref",
1230                                 ];
1231                         }
1232                 }
1233
1234                 $defaultPreferences['watchlisttoken'] = [
1235                         'type' => 'api',
1236                 ];
1237
1238                 $tokenButton = new \OOUI\ButtonWidget( [
1239                         'href' => SpecialPage::getTitleFor( 'ResetTokens' )->getLinkURL( [
1240                                 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText()
1241                         ] ),
1242                         'label' => $context->msg( 'prefs-watchlist-managetokens' )->text(),
1243                 ] );
1244                 $defaultPreferences['watchlisttoken-info'] = [
1245                         'type' => 'info',
1246                         'section' => 'watchlist/tokenwatchlist',
1247                         'label-message' => 'prefs-watchlist-token',
1248                         'help-message' => 'prefs-help-tokenmanagement',
1249                         'raw' => true,
1250                         'default' => (string)$tokenButton,
1251                 ];
1252
1253                 $defaultPreferences['wlenhancedfilters-disable'] = [
1254                         'type' => 'toggle',
1255                         'section' => 'watchlist/advancedwatchlist',
1256                         'label-message' => 'rcfilters-watchlist-preference-label',
1257                         'help-message' => 'rcfilters-watchlist-preference-help',
1258                 ];
1259         }
1260
1261         /**
1262          * @param array &$defaultPreferences
1263          */
1264         protected function searchPreferences( &$defaultPreferences ) {
1265                 foreach ( $this->nsInfo->getValidNamespaces() as $n ) {
1266                         $defaultPreferences['searchNs' . $n] = [
1267                                 'type' => 'api',
1268                         ];
1269                 }
1270         }
1271
1272         /**
1273          * @param User $user The User object
1274          * @param IContextSource $context
1275          * @return array Text/links to display as key; $skinkey as value
1276          */
1277         protected function generateSkinOptions( User $user, IContextSource $context ) {
1278                 $ret = [];
1279
1280                 $mptitle = Title::newMainPage();
1281                 $previewtext = $context->msg( 'skin-preview' )->escaped();
1282
1283                 # Only show skins that aren't disabled in $wgSkipSkins
1284                 $validSkinNames = Skin::getAllowedSkins();
1285                 $allInstalledSkins = Skin::getSkinNames();
1286
1287                 // Display the installed skin the user has specifically requested via useskin=….
1288                 $useSkin = $context->getRequest()->getRawVal( 'useskin' );
1289                 if ( isset( $allInstalledSkins[$useSkin] )
1290                         && $context->msg( "skinname-$useSkin" )->exists()
1291                 ) {
1292                         $validSkinNames[$useSkin] = $useSkin;
1293                 }
1294
1295                 // Display the skin if the user has set it as a preference already before it was hidden.
1296                 $currentUserSkin = $user->getOption( 'skin' );
1297                 if ( isset( $allInstalledSkins[$currentUserSkin] )
1298                         && $context->msg( "skinname-$useSkin" )->exists()
1299                 ) {
1300                         $validSkinNames[$currentUserSkin] = $currentUserSkin;
1301                 }
1302
1303                 foreach ( $validSkinNames as $skinkey => &$skinname ) {
1304                         $msg = $context->msg( "skinname-{$skinkey}" );
1305                         if ( $msg->exists() ) {
1306                                 $skinname = htmlspecialchars( $msg->text() );
1307                         }
1308                 }
1309
1310                 $defaultSkin = $this->options->get( 'DefaultSkin' );
1311                 $allowUserCss = $this->options->get( 'AllowUserCss' );
1312                 $allowUserJs = $this->options->get( 'AllowUserJs' );
1313
1314                 # Sort by the internal name, so that the ordering is the same for each display language,
1315                 # especially if some skin names are translated to use a different alphabet and some are not.
1316                 uksort( $validSkinNames, function ( $a, $b ) use ( $defaultSkin ) {
1317                         # Display the default first in the list by comparing it as lesser than any other.
1318                         if ( strcasecmp( $a, $defaultSkin ) === 0 ) {
1319                                 return -1;
1320                         }
1321                         if ( strcasecmp( $b, $defaultSkin ) === 0 ) {
1322                                 return 1;
1323                         }
1324                         return strcasecmp( $a, $b );
1325                 } );
1326
1327                 $foundDefault = false;
1328                 foreach ( $validSkinNames as $skinkey => $sn ) {
1329                         $linkTools = [];
1330
1331                         # Mark the default skin
1332                         if ( strcasecmp( $skinkey, $defaultSkin ) === 0 ) {
1333                                 $linkTools[] = $context->msg( 'default' )->escaped();
1334                                 $foundDefault = true;
1335                         }
1336
1337                         # Create preview link
1338                         $mplink = htmlspecialchars( $mptitle->getLocalURL( [ 'useskin' => $skinkey ] ) );
1339                         $linkTools[] = "<a target='_blank' href=\"$mplink\">$previewtext</a>";
1340
1341                         # Create links to user CSS/JS pages
1342                         if ( $allowUserCss ) {
1343                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.css' );
1344                                 $cssLinkText = $context->msg( 'prefs-custom-css' )->text();
1345                                 $linkTools[] = $this->linkRenderer->makeLink( $cssPage, $cssLinkText );
1346                         }
1347
1348                         if ( $allowUserJs ) {
1349                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.js' );
1350                                 $jsLinkText = $context->msg( 'prefs-custom-js' )->text();
1351                                 $linkTools[] = $this->linkRenderer->makeLink( $jsPage, $jsLinkText );
1352                         }
1353
1354                         $display = $sn . ' ' . $context->msg( 'parentheses' )
1355                                 ->rawParams( $context->getLanguage()->pipeList( $linkTools ) )
1356                                 ->escaped();
1357                         $ret[$display] = $skinkey;
1358                 }
1359
1360                 if ( !$foundDefault ) {
1361                         // If the default skin is not available, things are going to break horribly because the
1362                         // default value for skin selector will not be a valid value. Let's just not show it then.
1363                         return [];
1364                 }
1365
1366                 return $ret;
1367         }
1368
1369         /**
1370          * @param IContextSource $context
1371          * @return array
1372          */
1373         protected function getDateOptions( IContextSource $context ) {
1374                 $lang = $context->getLanguage();
1375                 $dateopts = $lang->getDatePreferences();
1376
1377                 $ret = [];
1378
1379                 if ( $dateopts ) {
1380                         if ( !in_array( 'default', $dateopts ) ) {
1381                                 $dateopts[] = 'default'; // Make sure default is always valid T21237
1382                         }
1383
1384                         // FIXME KLUGE: site default might not be valid for user language
1385                         global $wgDefaultUserOptions;
1386                         if ( !in_array( $wgDefaultUserOptions['date'], $dateopts ) ) {
1387                                 $wgDefaultUserOptions['date'] = 'default';
1388                         }
1389
1390                         $epoch = wfTimestampNow();
1391                         foreach ( $dateopts as $key ) {
1392                                 if ( $key == 'default' ) {
1393                                         $formatted = $context->msg( 'datedefault' )->escaped();
1394                                 } else {
1395                                         $formatted = htmlspecialchars( $lang->timeanddate( $epoch, false, $key ) );
1396                                 }
1397                                 $ret[$formatted] = $key;
1398                         }
1399                 }
1400                 return $ret;
1401         }
1402
1403         /**
1404          * @param MessageLocalizer $l10n
1405          * @return array
1406          */
1407         protected function getImageSizes( MessageLocalizer $l10n ) {
1408                 $ret = [];
1409                 $pixels = $l10n->msg( 'unit-pixel' )->text();
1410
1411                 foreach ( $this->options->get( 'ImageLimits' ) as $index => $limits ) {
1412                         // Note: A left-to-right marker (U+200E) is inserted, see T144386
1413                         $display = "{$limits[0]}\u{200E}×{$limits[1]}$pixels";
1414                         $ret[$display] = $index;
1415                 }
1416
1417                 return $ret;
1418         }
1419
1420         /**
1421          * @param MessageLocalizer $l10n
1422          * @return array
1423          */
1424         protected function getThumbSizes( MessageLocalizer $l10n ) {
1425                 $ret = [];
1426                 $pixels = $l10n->msg( 'unit-pixel' )->text();
1427
1428                 foreach ( $this->options->get( 'ThumbLimits' ) as $index => $size ) {
1429                         $display = $size . $pixels;
1430                         $ret[$display] = $index;
1431                 }
1432
1433                 return $ret;
1434         }
1435
1436         /**
1437          * @param string $signature
1438          * @param array $alldata
1439          * @param HTMLForm $form
1440          * @return bool|string
1441          */
1442         protected function validateSignature( $signature, $alldata, HTMLForm $form ) {
1443                 $maxSigChars = $this->options->get( 'MaxSigChars' );
1444                 if ( mb_strlen( $signature ) > $maxSigChars ) {
1445                         return Xml::element( 'span', [ 'class' => 'error' ],
1446                                 $form->msg( 'badsiglength' )->numParams( $maxSigChars )->text() );
1447                 } elseif ( isset( $alldata['fancysig'] ) &&
1448                                 $alldata['fancysig'] &&
1449                                 MediaWikiServices::getInstance()->getParser()->validateSig( $signature ) === false
1450                 ) {
1451                         return Xml::element(
1452                                 'span',
1453                                 [ 'class' => 'error' ],
1454                                 $form->msg( 'badsig' )->text()
1455                         );
1456                 } else {
1457                         return true;
1458                 }
1459         }
1460
1461         /**
1462          * @param string $signature
1463          * @param array $alldata
1464          * @param HTMLForm $form
1465          * @return string
1466          */
1467         protected function cleanSignature( $signature, $alldata, HTMLForm $form ) {
1468                 $parser = MediaWikiServices::getInstance()->getParser();
1469                 if ( isset( $alldata['fancysig'] ) && $alldata['fancysig'] ) {
1470                         $signature = $parser->cleanSig( $signature );
1471                 } else {
1472                         // When no fancy sig used, make sure ~{3,5} get removed.
1473                         $signature = Parser::cleanSigInSig( $signature );
1474                 }
1475
1476                 return $signature;
1477         }
1478
1479         /**
1480          * @param User $user
1481          * @param IContextSource $context
1482          * @param string $formClass
1483          * @param array $remove Array of items to remove
1484          * @return HTMLForm
1485          */
1486         public function getForm(
1487                 User $user,
1488                 IContextSource $context,
1489                 $formClass = PreferencesFormOOUI::class,
1490                 array $remove = []
1491         ) {
1492                 // We use ButtonWidgets in some of the getPreferences() functions
1493                 $context->getOutput()->enableOOUI();
1494
1495                 $formDescriptor = $this->getFormDescriptor( $user, $context );
1496                 if ( count( $remove ) ) {
1497                         $removeKeys = array_flip( $remove );
1498                         $formDescriptor = array_diff_key( $formDescriptor, $removeKeys );
1499                 }
1500
1501                 // Remove type=api preferences. They are not intended for rendering in the form.
1502                 foreach ( $formDescriptor as $name => $info ) {
1503                         if ( isset( $info['type'] ) && $info['type'] === 'api' ) {
1504                                 unset( $formDescriptor[$name] );
1505                         }
1506                 }
1507
1508                 /**
1509                  * @var HTMLForm $htmlForm
1510                  */
1511                 $htmlForm = new $formClass( $formDescriptor, $context, 'prefs' );
1512
1513                 // This allows users to opt-in to hidden skins. While this should be discouraged and is not
1514                 // discoverable, this allows users to still use hidden skins while preventing new users from
1515                 // adopting unsupported skins. If no useskin=… parameter was provided, it will not show up
1516                 // in the resulting URL.
1517                 $htmlForm->setAction( $context->getTitle()->getLocalURL( [
1518                         'useskin' => $context->getRequest()->getRawVal( 'useskin' )
1519                 ] ) );
1520
1521                 $htmlForm->setModifiedUser( $user );
1522                 $htmlForm->setId( 'mw-prefs-form' );
1523                 $htmlForm->setAutocomplete( 'off' );
1524                 $htmlForm->setSubmitText( $context->msg( 'saveprefs' )->text() );
1525                 # Used message keys: 'accesskey-preferences-save', 'tooltip-preferences-save'
1526                 $htmlForm->setSubmitTooltip( 'preferences-save' );
1527                 $htmlForm->setSubmitID( 'prefcontrol' );
1528                 $htmlForm->setSubmitCallback(
1529                         function ( array $formData, HTMLForm $form ) use ( $formDescriptor ) {
1530                                 return $this->submitForm( $formData, $form, $formDescriptor );
1531                         }
1532                 );
1533
1534                 return $htmlForm;
1535         }
1536
1537         /**
1538          * @param IContextSource $context
1539          * @return array
1540          */
1541         protected function getTimezoneOptions( IContextSource $context ) {
1542                 $opt = [];
1543
1544                 $localTZoffset = $this->options->get( 'LocalTZoffset' );
1545                 $timeZoneList = $this->getTimeZoneList( $context->getLanguage() );
1546
1547                 $timestamp = MWTimestamp::getLocalInstance();
1548                 // Check that the LocalTZoffset is the same as the local time zone offset
1549                 if ( $localTZoffset == $timestamp->format( 'Z' ) / 60 ) {
1550                         $timezoneName = $timestamp->getTimezone()->getName();
1551                         // Localize timezone
1552                         if ( isset( $timeZoneList[$timezoneName] ) ) {
1553                                 $timezoneName = $timeZoneList[$timezoneName]['name'];
1554                         }
1555                         $server_tz_msg = $context->msg(
1556                                 'timezoneuseserverdefault',
1557                                 $timezoneName
1558                         )->text();
1559                 } else {
1560                         $tzstring = sprintf(
1561                                 '%+03d:%02d',
1562                                 floor( $localTZoffset / 60 ),
1563                                 abs( $localTZoffset ) % 60
1564                         );
1565                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $tzstring )->text();
1566                 }
1567                 $opt[$server_tz_msg] = "System|$localTZoffset";
1568                 $opt[$context->msg( 'timezoneuseoffset' )->text()] = 'other';
1569                 $opt[$context->msg( 'guesstimezone' )->text()] = 'guess';
1570
1571                 foreach ( $timeZoneList as $timeZoneInfo ) {
1572                         $region = $timeZoneInfo['region'];
1573                         if ( !isset( $opt[$region] ) ) {
1574                                 $opt[$region] = [];
1575                         }
1576                         $opt[$region][$timeZoneInfo['name']] = $timeZoneInfo['timecorrection'];
1577                 }
1578                 return $opt;
1579         }
1580
1581         /**
1582          * Handle the form submission if everything validated properly
1583          *
1584          * @param array $formData
1585          * @param HTMLForm $form
1586          * @param array[] $formDescriptor
1587          * @return bool|Status|string
1588          */
1589         protected function saveFormData( $formData, HTMLForm $form, array $formDescriptor ) {
1590                 /** @var \User $user */
1591                 $user = $form->getModifiedUser();
1592                 $hiddenPrefs = $this->options->get( 'HiddenPrefs' );
1593                 $result = true;
1594
1595                 if ( !$user->isAllowedAny( 'editmyprivateinfo', 'editmyoptions' ) ) {
1596                         return Status::newFatal( 'mypreferencesprotected' );
1597                 }
1598
1599                 // Filter input
1600                 $this->applyFilters( $formData, $formDescriptor, 'filterFromForm' );
1601
1602                 // Fortunately, the realname field is MUCH simpler
1603                 // (not really "private", but still shouldn't be edited without permission)
1604
1605                 if ( !in_array( 'realname', $hiddenPrefs )
1606                         && $user->isAllowed( 'editmyprivateinfo' )
1607                         && array_key_exists( 'realname', $formData )
1608                 ) {
1609                         $realName = $formData['realname'];
1610                         $user->setRealName( $realName );
1611                 }
1612
1613                 if ( $user->isAllowed( 'editmyoptions' ) ) {
1614                         $oldUserOptions = $user->getOptions();
1615
1616                         foreach ( $this->getSaveBlacklist() as $b ) {
1617                                 unset( $formData[$b] );
1618                         }
1619
1620                         # If users have saved a value for a preference which has subsequently been disabled
1621                         # via $wgHiddenPrefs, we don't want to destroy that setting in case the preference
1622                         # is subsequently re-enabled
1623                         foreach ( $hiddenPrefs as $pref ) {
1624                                 # If the user has not set a non-default value here, the default will be returned
1625                                 # and subsequently discarded
1626                                 $formData[$pref] = $user->getOption( $pref, null, true );
1627                         }
1628
1629                         // If the user changed the rclimit preference, also change the rcfilters-rclimit preference
1630                         if (
1631                                 isset( $formData['rclimit'] ) &&
1632                                 intval( $formData[ 'rclimit' ] ) !== $user->getIntOption( 'rclimit' )
1633                         ) {
1634                                 $formData['rcfilters-limit'] = $formData['rclimit'];
1635                         }
1636
1637                         // Keep old preferences from interfering due to back-compat code, etc.
1638                         $user->resetOptions( 'unused', $form->getContext() );
1639
1640                         foreach ( $formData as $key => $value ) {
1641                                 $user->setOption( $key, $value );
1642                         }
1643
1644                         Hooks::run(
1645                                 'PreferencesFormPreSave',
1646                                 [ $formData, $form, $user, &$result, $oldUserOptions ]
1647                         );
1648                 }
1649
1650                 $user->saveSettings();
1651
1652                 return $result;
1653         }
1654
1655         /**
1656          * Applies filters to preferences either before or after form usage
1657          *
1658          * @param array &$preferences
1659          * @param array $formDescriptor
1660          * @param string $verb Name of the filter method to call, either 'filterFromForm' or
1661          *              'filterForForm'
1662          */
1663         protected function applyFilters( array &$preferences, array $formDescriptor, $verb ) {
1664                 foreach ( $formDescriptor as $preference => $desc ) {
1665                         if ( !isset( $desc['filter'] ) || !isset( $preferences[$preference] ) ) {
1666                                 continue;
1667                         }
1668                         $filterDesc = $desc['filter'];
1669                         if ( $filterDesc instanceof Filter ) {
1670                                 $filter = $filterDesc;
1671                         } elseif ( class_exists( $filterDesc ) ) {
1672                                 $filter = new $filterDesc();
1673                         } elseif ( is_callable( $filterDesc ) ) {
1674                                 $filter = $filterDesc();
1675                         } else {
1676                                 throw new UnexpectedValueException(
1677                                         "Unrecognized filter type for preference '$preference'"
1678                                 );
1679                         }
1680                         $preferences[$preference] = $filter->$verb( $preferences[$preference] );
1681                 }
1682         }
1683
1684         /**
1685          * Save the form data and reload the page
1686          *
1687          * @param array $formData
1688          * @param HTMLForm $form
1689          * @param array $formDescriptor
1690          * @return Status
1691          */
1692         protected function submitForm( array $formData, HTMLForm $form, array $formDescriptor ) {
1693                 $res = $this->saveFormData( $formData, $form, $formDescriptor );
1694
1695                 if ( $res === true ) {
1696                         $context = $form->getContext();
1697                         $urlOptions = [];
1698
1699                         if ( $res === 'eauth' ) {
1700                                 $urlOptions['eauth'] = 1;
1701                         }
1702
1703                         $urlOptions += $form->getExtraSuccessRedirectParameters();
1704
1705                         $url = $form->getTitle()->getFullURL( $urlOptions );
1706
1707                         // Set session data for the success message
1708                         $context->getRequest()->getSession()->set( 'specialPreferencesSaveSuccess', 1 );
1709
1710                         $context->getOutput()->redirect( $url );
1711                 }
1712
1713                 return ( $res === true ? Status::newGood() : $res );
1714         }
1715
1716         /**
1717          * Get a list of all time zones
1718          * @param Language $language Language used for the localized names
1719          * @return array A list of all time zones. The system name of the time zone is used as key and
1720          *  the value is an array which contains localized name, the timecorrection value used for
1721          *  preferences and the region
1722          * @since 1.26
1723          */
1724         protected function getTimeZoneList( Language $language ) {
1725                 $identifiers = DateTimeZone::listIdentifiers();
1726                 if ( $identifiers === false ) {
1727                         return [];
1728                 }
1729                 sort( $identifiers );
1730
1731                 $tzRegions = [
1732                         'Africa' => wfMessage( 'timezoneregion-africa' )->inLanguage( $language )->text(),
1733                         'America' => wfMessage( 'timezoneregion-america' )->inLanguage( $language )->text(),
1734                         'Antarctica' => wfMessage( 'timezoneregion-antarctica' )->inLanguage( $language )->text(),
1735                         'Arctic' => wfMessage( 'timezoneregion-arctic' )->inLanguage( $language )->text(),
1736                         'Asia' => wfMessage( 'timezoneregion-asia' )->inLanguage( $language )->text(),
1737                         'Atlantic' => wfMessage( 'timezoneregion-atlantic' )->inLanguage( $language )->text(),
1738                         'Australia' => wfMessage( 'timezoneregion-australia' )->inLanguage( $language )->text(),
1739                         'Europe' => wfMessage( 'timezoneregion-europe' )->inLanguage( $language )->text(),
1740                         'Indian' => wfMessage( 'timezoneregion-indian' )->inLanguage( $language )->text(),
1741                         'Pacific' => wfMessage( 'timezoneregion-pacific' )->inLanguage( $language )->text(),
1742                 ];
1743                 asort( $tzRegions );
1744
1745                 $timeZoneList = [];
1746
1747                 $now = new DateTime();
1748
1749                 foreach ( $identifiers as $identifier ) {
1750                         $parts = explode( '/', $identifier, 2 );
1751
1752                         // DateTimeZone::listIdentifiers() returns a number of
1753                         // backwards-compatibility entries. This filters them out of the
1754                         // list presented to the user.
1755                         if ( count( $parts ) !== 2 || !array_key_exists( $parts[0], $tzRegions ) ) {
1756                                 continue;
1757                         }
1758
1759                         // Localize region
1760                         $parts[0] = $tzRegions[$parts[0]];
1761
1762                         $dateTimeZone = new DateTimeZone( $identifier );
1763                         $minDiff = floor( $dateTimeZone->getOffset( $now ) / 60 );
1764
1765                         $display = str_replace( '_', ' ', $parts[0] . '/' . $parts[1] );
1766                         $value = "ZoneInfo|$minDiff|$identifier";
1767
1768                         $timeZoneList[$identifier] = [
1769                                 'name' => $display,
1770                                 'timecorrection' => $value,
1771                                 'region' => $parts[0],
1772                         ];
1773                 }
1774
1775                 return $timeZoneList;
1776         }
1777 }