includes/Preferences.php

   1 <?php
   2 /**
   3  * We're now using the HTMLForm object with some customisation to generate the
   4  * Preferences form. This object handles generic submission, CSRF protection,
   5  * layout and other logic in a reusable manner. We subclass it as a PreferencesForm
   6  * to make some minor customisations.
   7  *
   8  * In order to generate the form, the HTMLForm object needs an array structure
   9  * detailing the form fields available, and that's what this class is for. Each
  10  * element of the array is a basic property-list, including the type of field,
  11  * the label it is to be given in the form, callbacks for validation and
  12  * 'filtering', and other pertinent information. Note that the 'default' field
  13  * is named for generic forms, and does not represent the preference's default
  14  * (which is stored in $wgDefaultUserOptions), but the default for the form
  15  * field, which should be whatever the user has set for that preference. There
  16  * is no need to override it unless you have some special storage logic (for
  17  * instance, those not presently stored as options, but which are best set from
  18  * the user preferences view).
  19  *
  20  * Field types are implemented as subclasses of the generic HTMLFormField
  21  * object, and typically implement at least getInputHTML, which generates the
  22  * HTML for the input field to be placed in the table.
  23  *
  24  * Once fields have been retrieved and validated, submission logic is handed
  25  * over to the tryUISubmit static method of this class.
  26  */
  27
  28 class Preferences {
  29         static $defaultPreferences = null;
  30         static $saveFilters = array(
  31                         'timecorrection' => array( 'Preferences', 'filterTimezoneInput' ),
  32                         'rows' => array( 'Preferences', 'filterIntval' ),
  33                         'rclimit' => array( 'Preferences', 'filterIntval' ),
  34                         'wllimit' => array( 'Preferences', 'filterIntval' ),
  35                         'searchlimit' => array( 'Preferences', 'filterIntval' ),
  36         );
  37
  38         /**
  39          * @throws MWException
  40          * @param $user User
  41          * @param $context IContextSource
  42          * @return array|null
  43          */
  44         static function getPreferences( $user, IContextSource $context ) {
  45                 if ( self::$defaultPreferences ) {
  46                         return self::$defaultPreferences;
  47                 }
  48
  49                 $defaultPreferences = array();
  50
  51                 self::profilePreferences( $user, $context, $defaultPreferences );
  52                 self::skinPreferences( $user, $context, $defaultPreferences );
  53                 self::filesPreferences( $user, $context, $defaultPreferences );
  54                 self::datetimePreferences( $user, $context, $defaultPreferences );
  55                 self::renderingPreferences( $user, $context, $defaultPreferences );
  56                 self::editingPreferences( $user, $context, $defaultPreferences );
  57                 self::rcPreferences( $user, $context, $defaultPreferences );
  58                 self::watchlistPreferences( $user, $context, $defaultPreferences );
  59                 self::searchPreferences( $user, $context, $defaultPreferences );
  60                 self::miscPreferences( $user, $context, $defaultPreferences );
  61
  62                 wfRunHooks( 'GetPreferences', array( $user, &$defaultPreferences ) );
  63
  64                 ## Remove preferences that wikis don't want to use
  65                 global $wgHiddenPrefs;
  66                 foreach ( $wgHiddenPrefs as $pref ) {
  67                         if ( isset( $defaultPreferences[$pref] ) ) {
  68                                 unset( $defaultPreferences[$pref] );
  69                         }
  70                 }
  71
  72                 ## Prod in defaults from the user
  73                 foreach ( $defaultPreferences as $name => &$info ) {
  74                         $prefFromUser = self::getOptionFromUser( $name, $info, $user );
  75                         $field = HTMLForm::loadInputFromParameters( $name, $info ); // For validation
  76                         $defaultOptions = User::getDefaultOptions();
  77                         $globalDefault = isset( $defaultOptions[$name] )
  78                                 ? $defaultOptions[$name]
  79                                 : null;
  80
  81                         // If it validates, set it as the default
  82                         if ( isset( $info['default'] ) ) {
  83                                 // Already set, no problem
  84                                 continue;
  85                         } elseif ( !is_null( $prefFromUser ) && // Make sure we're not just pulling nothing
  86                                         $field->validate( $prefFromUser, $user->mOptions ) === true ) {
  87                                 $info['default'] = $prefFromUser;
  88                         } elseif ( $field->validate( $globalDefault, $user->mOptions ) === true ) {
  89                                 $info['default'] = $globalDefault;
  90                         } else {
  91                                 throw new MWException( "Global default '$globalDefault' is invalid for field $name" );
  92                         }
  93                 }
  94
  95                 self::$defaultPreferences = $defaultPreferences;
  96
  97                 return $defaultPreferences;
  98         }
  99
 100         /**
 101          * Pull option from a user account. Handles stuff like array-type preferences.
 102          *
 103          * @param $name
 104          * @param $info
 105          * @param $user User
 106          * @return array|String
 107          */
 108         static function getOptionFromUser( $name, $info, $user ) {
 109                 $val = $user->getOption( $name );
 110
 111                 // Handling for array-type preferences
 112                 if ( ( isset( $info['type'] ) && $info['type'] == 'multiselect' ) ||
 113                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLMultiSelectField' ) ) {
 114                         $options = HTMLFormField::flattenOptions( $info['options'] );
 115                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 116                         $val = array();
 117
 118                         foreach ( $options as $value ) {
 119                                 if ( $user->getOption( "$prefix$value" ) ) {
 120                                         $val[] = $value;
 121                                 }
 122                         }
 123                 }
 124
 125                 return $val;
 126         }
 127
 128         /**
 129          * @param $user User
 130          * @param $context IContextSource
 131          * @param $defaultPreferences
 132          */
 133         static function profilePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 134                 global $wgAuth, $wgContLang, $wgParser, $wgCookieExpiration, $wgLanguageCode,
 135                         $wgDisableTitleConversion, $wgDisableLangConversion, $wgMaxSigChars,
 136                         $wgEnableEmail, $wgEmailConfirmToEdit, $wgEnableUserEmail, $wgEmailAuthentication,
 137                         $wgEnotifWatchlist, $wgEnotifUserTalk, $wgEnotifRevealEditorAddress;
 138
 139                 ## User info #####################################
 140                 // Information panel
 141                 $defaultPreferences['username'] = array(
 142                         'type' => 'info',
 143                         'label-message' => 'username',
 144                         'default' => $user->getName(),
 145                         'section' => 'personal/info',
 146                 );
 147
 148                 $defaultPreferences['userid'] = array(
 149                         'type' => 'info',
 150                         'label-message' => 'uid',
 151                         'default' => $user->getId(),
 152                         'section' => 'personal/info',
 153                 );
 154
 155                 # Get groups to which the user belongs
 156                 $userEffectiveGroups = $user->getEffectiveGroups();
 157                 $userGroups = $userMembers = array();
 158                 foreach ( $userEffectiveGroups as $ueg ) {
 159                         if ( $ueg == '*' ) {
 160                                 // Skip the default * group, seems useless here
 161                                 continue;
 162                         }
 163                         $groupName  = User::getGroupName( $ueg );
 164                         $userGroups[] = User::makeGroupLinkHTML( $ueg, $groupName );
 165
 166                         $memberName = User::getGroupMember( $ueg, $user->getName() );
 167                         $userMembers[] = User::makeGroupLinkHTML( $ueg, $memberName );
 168                 }
 169                 asort( $userGroups );
 170                 asort( $userMembers );
 171
 172                 $lang = $context->getLanguage();
 173
 174                 $defaultPreferences['usergroups'] = array(
 175                         'type' => 'info',
 176                         'label' => $context->msg( 'prefs-memberingroups' )->numParams(
 177                                 count( $userGroups ) )->parse(),
 178                         'default' => $context->msg( 'prefs-memberingroups-type',
 179                                 $lang->commaList( $userGroups ),
 180                                 $lang->commaList( $userMembers )
 181                         )->plain(),
 182                         'raw' => true,
 183                         'section' => 'personal/info',
 184                 );
 185
 186                 $defaultPreferences['editcount'] = array(
 187                         'type' => 'info',
 188                         'label-message' => 'prefs-edits',
 189                         'default' => $lang->formatNum( $user->getEditCount() ),
 190                         'section' => 'personal/info',
 191                 );
 192
 193                 if ( $user->getRegistration() ) {
 194                         $displayUser = $context->getUser();
 195                         $userRegistration = $user->getRegistration();
 196                         $defaultPreferences['registrationdate'] = array(
 197                                 'type' => 'info',
 198                                 'label-message' => 'prefs-registration',
 199                                 'default' => $context->msg(
 200                                         'prefs-registration-date-time',
 201                                         $lang->userTimeAndDate( $userRegistration, $displayUser ),
 202                                         $lang->userDate( $userRegistration, $displayUser ),
 203                                         $lang->userTime( $userRegistration, $displayUser )
 204                                 )->parse(),
 205                                 'section' => 'personal/info',
 206                         );
 207                 }
 208
 209                 // Actually changeable stuff
 210                 $defaultPreferences['realname'] = array(
 211                         'type' => $wgAuth->allowPropChange( 'realname' ) ? 'text' : 'info',
 212                         'default' => $user->getRealName(),
 213                         'section' => 'personal/info',
 214                         'label-message' => 'yourrealname',
 215                         'help-message' => 'prefs-help-realname',
 216                 );
 217
 218                 $defaultPreferences['gender'] = array(
 219                         'type' => 'select',
 220                         'section' => 'personal/info',
 221                         'options' => array(
 222                                 $context->msg( 'gender-male' )->text() => 'male',
 223                                 $context->msg( 'gender-female' )->text() => 'female',
 224                                 $context->msg( 'gender-unknown' )->text() => 'unknown',
 225                         ),
 226                         'label-message' => 'yourgender',
 227                         'help-message' => 'prefs-help-gender',
 228                 );
 229
 230                 if ( $wgAuth->allowPasswordChange() ) {
 231                         $link = Linker::link( SpecialPage::getTitleFor( 'ChangePassword' ),
 232                                 $context->msg( 'prefs-resetpass' )->escaped(), array(),
 233                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' ) ) );
 234
 235                         $defaultPreferences['password'] = array(
 236                                 'type' => 'info',
 237                                 'raw' => true,
 238                                 'default' => $link,
 239                                 'label-message' => 'yourpassword',
 240                                 'section' => 'personal/info',
 241                         );
 242                 }
 243                 if ( $wgCookieExpiration > 0 ) {
 244                         $defaultPreferences['rememberpassword'] = array(
 245                                 'type' => 'toggle',
 246                                 'label' => $context->msg( 'tog-rememberpassword' )->numParams(
 247                                         ceil( $wgCookieExpiration / ( 3600 * 24 ) ) )->text(),
 248                                 'section' => 'personal/info',
 249                         );
 250                 }
 251
 252                 // Language
 253                 $languages = Language::getLanguageNames( false );
 254                 if ( !array_key_exists( $wgLanguageCode, $languages ) ) {
 255                         $languages[$wgLanguageCode] = $wgLanguageCode;
 256                 }
 257                 ksort( $languages );
 258
 259                 $options = array();
 260                 foreach ( $languages as $code => $name ) {
 261                         $display = wfBCP47( $code ) . ' - ' . $name;
 262                         $options[$display] = $code;
 263                 }
 264                 $defaultPreferences['language'] = array(
 265                         'type' => 'select',
 266                         'section' => 'personal/i18n',
 267                         'options' => $options,
 268                         'label-message' => 'yourlanguage',
 269                 );
 270
 271                 /* see if there are multiple language variants to choose from*/
 272                 $variantArray = array();
 273                 if ( !$wgDisableLangConversion ) {
 274                         $variants = $wgContLang->getVariants();
 275
 276                         foreach ( $variants as $v ) {
 277                                 $v = str_replace( '_', '-', strtolower( $v ) );
 278                                 $variantArray[$v] = $wgContLang->getVariantname( $v, false );
 279                         }
 280
 281                         $options = array();
 282                         foreach ( $variantArray as $code => $name ) {
 283                                 $display = wfBCP47( $code ) . ' - ' . $name;
 284                                 $options[$display] = $code;
 285                         }
 286
 287                         if ( count( $variantArray ) > 1 ) {
 288                                 $defaultPreferences['variant'] = array(
 289                                         'label-message' => 'yourvariant',
 290                                         'type' => 'select',
 291                                         'options' => $options,
 292                                         'section' => 'personal/i18n',
 293                                         'help-message' => 'prefs-help-variant',
 294                                 );
 295                         }
 296                 }
 297
 298                 if ( count( $variantArray ) > 1 && !$wgDisableLangConversion && !$wgDisableTitleConversion ) {
 299                         $defaultPreferences['noconvertlink'] =
 300                                 array(
 301                                 'type' => 'toggle',
 302                                 'section' => 'personal/i18n',
 303                                 'label-message' => 'tog-noconvertlink',
 304                         );
 305                 }
 306
 307                 // show a preview of the old signature first
 308                 $oldsigWikiText = $wgParser->preSaveTransform( "~~~", $context->getTitle(), $user, ParserOptions::newFromContext( $context ) );
 309                 $oldsigHTML = $context->getOutput()->parseInline( $oldsigWikiText, true, true );
 310                 $defaultPreferences['oldsig'] = array(
 311                         'type' => 'info',
 312                         'raw' => true,
 313                         'label-message' => 'tog-oldsig',
 314                         'default' => $oldsigHTML,
 315                         'section' => 'personal/signature',
 316                 );
 317                 $defaultPreferences['nickname'] = array(
 318                         'type' => $wgAuth->allowPropChange( 'nickname' ) ? 'text' : 'info',
 319                         'maxlength' => $wgMaxSigChars,
 320                         'label-message' => 'yournick',
 321                         'validation-callback' => array( 'Preferences', 'validateSignature' ),
 322                         'section' => 'personal/signature',
 323                         'filter-callback' => array( 'Preferences', 'cleanSignature' ),
 324                 );
 325                 $defaultPreferences['fancysig'] = array(
 326                         'type' => 'toggle',
 327                         'label-message' => 'tog-fancysig',
 328                         'help-message' => 'prefs-help-signature', // show general help about signature at the bottom of the section
 329                         'section' => 'personal/signature'
 330                 );
 331
 332                 ## Email stuff
 333
 334                 if ( $wgEnableEmail ) {
 335                         $helpMessages[] = $wgEmailConfirmToEdit
 336                                         ? 'prefs-help-email-required'
 337                                         : 'prefs-help-email' ;
 338
 339                         if( $wgEnableUserEmail ) {
 340                                 // additional messages when users can send email to each other
 341                                 $helpMessages[] = 'prefs-help-email-others';
 342                         }
 343
 344                         $link = Linker::link(
 345                                 SpecialPage::getTitleFor( 'ChangeEmail' ),
 346                                 $context->msg( $user->getEmail() ? 'prefs-changeemail' : 'prefs-setemail' )->escaped(),
 347                                 array(),
 348                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' ) ) );
 349
 350                         $emailAddress = $user->getEmail() ? htmlspecialchars( $user->getEmail() ) : '';
 351                         if ( $wgAuth->allowPropChange( 'emailaddress' ) ) {
 352                                 $emailAddress .= $emailAddress == '' ? $link : " ($link)";
 353                         }
 354
 355                         $defaultPreferences['emailaddress'] = array(
 356                                 'type' => 'info',
 357                                 'raw' => true,
 358                                 'default' => $emailAddress,
 359                                 'label-message' => 'youremail',
 360                                 'section' => 'personal/email',
 361                         );
 362
 363                         $disableEmailPrefs = false;
 364
 365                         if ( $wgEmailAuthentication ) {
 366                                 if ( $user->getEmail() ) {
 367                                         if ( $user->getEmailAuthenticationTimestamp() ) {
 368                                                 // date and time are separate parameters to facilitate localisation.
 369                                                 // $time is kept for backward compat reasons.
 370                                                 // 'emailauthenticated' is also used in SpecialConfirmemail.php
 371                                                 $displayUser = $context->getUser();
 372                                                 $emailTimestamp = $user->getEmailAuthenticationTimestamp();
 373                                                 $time = $lang->userTimeAndDate( $emailTimestamp, $displayUser );
 374                                                 $d = $lang->userDate( $emailTimestamp, $displayUser );
 375                                                 $t = $lang->userTime( $emailTimestamp, $displayUser );
 376                                                 $emailauthenticated = $context->msg( 'emailauthenticated',
 377                                                         $time, $d, $t )->parse() . '<br />';
 378                                                 $disableEmailPrefs = false;
 379                                         } else {
 380                                                 $disableEmailPrefs = true;
 381                                                 $emailauthenticated = $context->msg( 'emailnotauthenticated' )->parse() . '<br />' .
 382                                                         Linker::linkKnown(
 383                                                                 SpecialPage::getTitleFor( 'Confirmemail' ),
 384                                                                 $context->msg( 'emailconfirmlink' )->escaped()
 385                                                         ) . '<br />';
 386                                         }
 387                                 } else {
 388                                         $disableEmailPrefs = true;
 389                                         $emailauthenticated = $context->msg( 'noemailprefs' )->escaped();
 390                                 }
 391
 392                                 $defaultPreferences['emailauthentication'] = array(
 393                                         'type' => 'info',
 394                                         'raw' => true,
 395                                         'section' => 'personal/email',
 396                                         'label-message' => 'prefs-emailconfirm-label',
 397                                         'default' => $emailauthenticated,
 398                                 );
 399
 400                         }
 401
 402                         if ( $wgEnableUserEmail && $user->isAllowed( 'sendemail' ) ) {
 403                                 $defaultPreferences['disablemail'] = array(
 404                                         'type' => 'toggle',
 405                                         'invert' => true,
 406                                         'section' => 'personal/email',
 407                                         'label-message' => 'allowemail',
 408                                         'disabled' => $disableEmailPrefs,
 409                                 );
 410                                 $defaultPreferences['ccmeonemails'] = array(
 411                                         'type' => 'toggle',
 412                                         'section' => 'personal/email',
 413                                         'label-message' => 'tog-ccmeonemails',
 414                                         'disabled' => $disableEmailPrefs,
 415                                 );
 416                         }
 417
 418                         if ( $wgEnotifWatchlist ) {
 419                                 $defaultPreferences['enotifwatchlistpages'] = array(
 420                                         'type' => 'toggle',
 421                                         'section' => 'personal/email',
 422                                         'label-message' => 'tog-enotifwatchlistpages',
 423                                         'disabled' => $disableEmailPrefs,
 424                                 );
 425                         }
 426                         if ( $wgEnotifUserTalk ) {
 427                                 $defaultPreferences['enotifusertalkpages'] = array(
 428                                         'type' => 'toggle',
 429                                         'section' => 'personal/email',
 430                                         'label-message' => 'tog-enotifusertalkpages',
 431                                         'disabled' => $disableEmailPrefs,
 432                                 );
 433                         }
 434                         if ( $wgEnotifUserTalk || $wgEnotifWatchlist ) {
 435                                 $defaultPreferences['enotifminoredits'] = array(
 436                                         'type' => 'toggle',
 437                                         'section' => 'personal/email',
 438                                         'label-message' => 'tog-enotifminoredits',
 439                                         'disabled' => $disableEmailPrefs,
 440                                 );
 441
 442                                 if ( $wgEnotifRevealEditorAddress ) {
 443                                         $defaultPreferences['enotifrevealaddr'] = array(
 444                                                 'type' => 'toggle',
 445                                                 'section' => 'personal/email',
 446                                                 'label-message' => 'tog-enotifrevealaddr',
 447                                                 'disabled' => $disableEmailPrefs,
 448                                         );
 449                                 }
 450                         }
 451                 }
 452         }
 453
 454         /**
 455          * @param $user User
 456          * @param $context IContextSource
 457          * @param $defaultPreferences
 458          */
 459         static function skinPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 460                 ## Skin #####################################
 461                 global $wgAllowUserCss, $wgAllowUserJs;
 462
 463                 $defaultPreferences['skin'] = array(
 464                         'type' => 'radio',
 465                         'options' => self::generateSkinOptions( $user, $context ),
 466                         'label' => '&#160;',
 467                         'section' => 'rendering/skin',
 468                 );
 469
 470                 # Create links to user CSS/JS pages for all skins
 471                 # This code is basically copied from generateSkinOptions().  It'd
 472                 # be nice to somehow merge this back in there to avoid redundancy.
 473                 if ( $wgAllowUserCss || $wgAllowUserJs ) {
 474                         $linkTools = array();
 475
 476                         if ( $wgAllowUserCss ) {
 477                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/common.css' );
 478                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
 479                         }
 480
 481                         if ( $wgAllowUserJs ) {
 482                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/common.js' );
 483                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
 484                         }
 485
 486                         $defaultPreferences['commoncssjs'] = array(
 487                                 'type' => 'info',
 488                                 'raw' => true,
 489                                 'default' => $context->getLanguage()->pipeList( $linkTools ),
 490                                 'label-message' => 'prefs-common-css-js',
 491                                 'section' => 'rendering/skin',
 492                         );
 493                 }
 494
 495                 $selectedSkin = $user->getOption( 'skin' );
 496                 if ( in_array( $selectedSkin, array( 'cologneblue', 'standard' ) ) ) {
 497                         $settings = array_flip( $context->getLanguage()->getQuickbarSettings() );
 498
 499                         $defaultPreferences['quickbar'] = array(
 500                                 'type' => 'radio',
 501                                 'options' => $settings,
 502                                 'section' => 'rendering/skin',
 503                                 'label-message' => 'qbsettings',
 504                         );
 505                 }
 506         }
 507
 508         /**
 509          * @param $user User
 510          * @param $context IContextSource
 511          * @param $defaultPreferences Array
 512          */
 513         static function filesPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 514                 ## Files #####################################
 515                 $defaultPreferences['imagesize'] = array(
 516                         'type' => 'select',
 517                         'options' => self::getImageSizes( $context ),
 518                         'label-message' => 'imagemaxsize',
 519                         'section' => 'rendering/files',
 520                 );
 521                 $defaultPreferences['thumbsize'] = array(
 522                         'type' => 'select',
 523                         'options' => self::getThumbSizes( $context ),
 524                         'label-message' => 'thumbsize',
 525                         'section' => 'rendering/files',
 526                 );
 527         }
 528
 529         /**
 530          * @param $user User
 531          * @param $context IContextSource
 532          * @param $defaultPreferences
 533          */
 534         static function datetimePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 535                 ## Date and time #####################################
 536                 $dateOptions = self::getDateOptions( $context );
 537                 if ( $dateOptions ) {
 538                         $defaultPreferences['date'] = array(
 539                                 'type' => 'radio',
 540                                 'options' => $dateOptions,
 541                                 'label' => '&#160;',
 542                                 'section' => 'datetime/dateformat',
 543                         );
 544                 }
 545
 546                 // Info
 547                 $now = wfTimestampNow();
 548                 $lang = $context->getLanguage();
 549                 $nowlocal = Xml::element( 'span', array( 'id' => 'wpLocalTime' ),
 550                         $lang->time( $now, true ) );
 551                 $nowserver = $lang->time( $now, false ) .
 552                         Html::hidden( 'wpServerTime', (int)substr( $now, 8, 2 ) * 60 + (int)substr( $now, 10, 2 ) );
 553
 554                 $defaultPreferences['nowserver'] = array(
 555                         'type' => 'info',
 556                         'raw' => 1,
 557                         'label-message' => 'servertime',
 558                         'default' => $nowserver,
 559                         'section' => 'datetime/timeoffset',
 560                 );
 561
 562                 $defaultPreferences['nowlocal'] = array(
 563                         'type' => 'info',
 564                         'raw' => 1,
 565                         'label-message' => 'localtime',
 566                         'default' => $nowlocal,
 567                         'section' => 'datetime/timeoffset',
 568                 );
 569
 570                 // Grab existing pref.
 571                 $tzOffset = $user->getOption( 'timecorrection' );
 572                 $tz = explode( '|', $tzOffset, 3 );
 573
 574                 $tzOptions = self::getTimezoneOptions( $context );
 575
 576                 $tzSetting = $tzOffset;
 577                 if ( count( $tz ) > 1 && $tz[0] == 'Offset' ) {
 578                         $minDiff = $tz[1];
 579                         $tzSetting = sprintf( '%+03d:%02d', floor( $minDiff / 60 ), abs( $minDiff ) % 60 );
 580                 } elseif ( count( $tz ) > 1 && $tz[0] == 'ZoneInfo' &&
 581                         !in_array( $tzOffset, HTMLFormField::flattenOptions( $tzOptions ) ) )
 582                 {
 583                         # Timezone offset can vary with DST
 584                         $userTZ = timezone_open( $tz[2] );
 585                         if ( $userTZ !== false ) {
 586                                 $minDiff = floor( timezone_offset_get( $userTZ, date_create( 'now' ) ) / 60 );
 587                                 $tzSetting = "ZoneInfo|$minDiff|{$tz[2]}";
 588                         }
 589                 }
 590
 591                 $defaultPreferences['timecorrection'] = array(
 592                         'class' => 'HTMLSelectOrOtherField',
 593                         'label-message' => 'timezonelegend',
 594                         'options' => $tzOptions,
 595                         'default' => $tzSetting,
 596                         'size' => 20,
 597                         'section' => 'datetime/timeoffset',
 598                 );
 599         }
 600
 601         /**
 602          * @param $user User
 603          * @param $context IContextSource
 604          * @param $defaultPreferences Array
 605          */
 606         static function renderingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 607                 ## Page Rendering ##############################
 608                 global $wgAllowUserCssPrefs;
 609                 if ( $wgAllowUserCssPrefs ) {
 610                         $defaultPreferences['underline'] = array(
 611                                 'type' => 'select',
 612                                 'options' => array(
 613                                         $context->msg( 'underline-never' )->text() => 0,
 614                                         $context->msg( 'underline-always' )->text() => 1,
 615                                         $context->msg( 'underline-default' )->text() => 2,
 616                                 ),
 617                                 'label-message' => 'tog-underline',
 618                                 'section' => 'rendering/advancedrendering',
 619                         );
 620                 }
 621
 622                 $stubThresholdValues = array( 50, 100, 500, 1000, 2000, 5000, 10000 );
 623                 $stubThresholdOptions = array( $context->msg( 'stub-threshold-disabled' )->text() => 0 );
 624                 foreach ( $stubThresholdValues as $value ) {
 625                         $stubThresholdOptions[$context->msg( 'size-bytes', $value )->text()] = $value;
 626                 }
 627
 628                 $defaultPreferences['stubthreshold'] = array(
 629                         'type' => 'selectorother',
 630                         'section' => 'rendering/advancedrendering',
 631                         'options' => $stubThresholdOptions,
 632                         'size' => 20,
 633                         'label' => $context->msg( 'stub-threshold' )->text(), // Raw HTML message. Yay?
 634                 );
 635
 636                 if ( $wgAllowUserCssPrefs ) {
 637                         $defaultPreferences['highlightbroken'] = array(
 638                                 'type' => 'toggle',
 639                                 'section' => 'rendering/advancedrendering',
 640                                 'label' => $context->msg( 'tog-highlightbroken' )->text(), // Raw HTML
 641                         );
 642                         $defaultPreferences['showtoc'] = array(
 643                                 'type' => 'toggle',
 644                                 'section' => 'rendering/advancedrendering',
 645                                 'label-message' => 'tog-showtoc',
 646                         );
 647                 }
 648                 $defaultPreferences['nocache'] = array(
 649                         'type' => 'toggle',
 650                         'label-message' => 'tog-nocache',
 651                         'section' => 'rendering/advancedrendering',
 652                 );
 653                 $defaultPreferences['showhiddencats'] = array(
 654                         'type' => 'toggle',
 655                         'section' => 'rendering/advancedrendering',
 656                         'label-message' => 'tog-showhiddencats'
 657                 );
 658                 $defaultPreferences['showjumplinks'] = array(
 659                         'type' => 'toggle',
 660                         'section' => 'rendering/advancedrendering',
 661                         'label-message' => 'tog-showjumplinks',
 662                 );
 663
 664                 if ( $wgAllowUserCssPrefs ) {
 665                         $defaultPreferences['justify'] = array(
 666                                 'type' => 'toggle',
 667                                 'section' => 'rendering/advancedrendering',
 668                                 'label-message' => 'tog-justify',
 669                         );
 670                 }
 671
 672                 $defaultPreferences['numberheadings'] = array(
 673                         'type' => 'toggle',
 674                         'section' => 'rendering/advancedrendering',
 675                         'label-message' => 'tog-numberheadings',
 676                 );
 677         }
 678
 679         /**
 680          * @param $user User
 681          * @param $context IContextSource
 682          * @param $defaultPreferences Array
 683          */
 684         static function editingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 685                 global $wgUseExternalEditor, $wgAllowUserCssPrefs;
 686
 687                 ## Editing #####################################
 688
 689                 $defaultPreferences['rows'] = array(
 690                         'type' => 'int',
 691                         'label-message' => 'rows',
 692                         'section' => 'editing/textboxsize',
 693                         'min' => 4,
 694                         'max' => 1000,
 695                 );
 696
 697                 if ( $wgAllowUserCssPrefs ) {
 698                         $defaultPreferences['editfont'] = array(
 699                                 'type' => 'select',
 700                                 'section' => 'editing/advancedediting',
 701                                 'label-message' => 'editfont-style',
 702                                 'options' => array(
 703                                         $context->msg( 'editfont-default' )->text() => 'default',
 704                                         $context->msg( 'editfont-monospace' )->text() => 'monospace',
 705                                         $context->msg( 'editfont-sansserif' )->text() => 'sans-serif',
 706                                         $context->msg( 'editfont-serif' )->text() => 'serif',
 707                                 )
 708                         );
 709                 }
 710                 $defaultPreferences['previewontop'] = array(
 711                         'type' => 'toggle',
 712                         'section' => 'editing/advancedediting',
 713                         'label-message' => 'tog-previewontop',
 714                 );
 715                 $defaultPreferences['previewonfirst'] = array(
 716                         'type' => 'toggle',
 717                         'section' => 'editing/advancedediting',
 718                         'label-message' => 'tog-previewonfirst',
 719                 );
 720
 721                 if ( $wgAllowUserCssPrefs ) {
 722                         $defaultPreferences['editsection'] = array(
 723                                 'type' => 'toggle',
 724                                 'section' => 'editing/advancedediting',
 725                                 'label-message' => 'tog-editsection',
 726                         );
 727                 }
 728                 $defaultPreferences['editsectiononrightclick'] = array(
 729                         'type' => 'toggle',
 730                         'section' => 'editing/advancedediting',
 731                         'label-message' => 'tog-editsectiononrightclick',
 732                 );
 733                 $defaultPreferences['editondblclick'] = array(
 734                         'type' => 'toggle',
 735                         'section' => 'editing/advancedediting',
 736                         'label-message' => 'tog-editondblclick',
 737                 );
 738                 $defaultPreferences['showtoolbar'] = array(
 739                         'type' => 'toggle',
 740                         'section' => 'editing/advancedediting',
 741                         'label-message' => 'tog-showtoolbar',
 742                 );
 743
 744                 if ( $user->isAllowed( 'minoredit' ) ) {
 745                         $defaultPreferences['minordefault'] = array(
 746                                 'type' => 'toggle',
 747                                 'section' => 'editing/advancedediting',
 748                                 'label-message' => 'tog-minordefault',
 749                         );
 750                 }
 751
 752                 if ( $wgUseExternalEditor ) {
 753                         $defaultPreferences['externaleditor'] = array(
 754                                 'type' => 'toggle',
 755                                 'section' => 'editing/advancedediting',
 756                                 'label-message' => 'tog-externaleditor',
 757                         );
 758                         $defaultPreferences['externaldiff'] = array(
 759                                 'type' => 'toggle',
 760                                 'section' => 'editing/advancedediting',
 761                                 'label-message' => 'tog-externaldiff',
 762                         );
 763                 }
 764
 765                 $defaultPreferences['forceeditsummary'] = array(
 766                         'type' => 'toggle',
 767                         'section' => 'editing/advancedediting',
 768                         'label-message' => 'tog-forceeditsummary',
 769                 );
 770
 771
 772                 $defaultPreferences['uselivepreview'] = array(
 773                         'type' => 'toggle',
 774                         'section' => 'editing/advancedediting',
 775                         'label-message' => 'tog-uselivepreview',
 776                 );
 777         }
 778
 779         /**
 780          * @param $user User
 781          * @param $context IContextSource
 782          * @param $defaultPreferences Array
 783          */
 784         static function rcPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 785                 global $wgRCMaxAge, $wgRCShowWatchingUsers;
 786
 787                 ## RecentChanges #####################################
 788                 $defaultPreferences['rcdays'] = array(
 789                         'type' => 'float',
 790                         'label-message' => 'recentchangesdays',
 791                         'section' => 'rc/displayrc',
 792                         'min' => 1,
 793                         'max' => ceil( $wgRCMaxAge / ( 3600 * 24 ) ),
 794                         'help' => $context->msg( 'recentchangesdays-max' )->numParams(
 795                                 ceil( $wgRCMaxAge / ( 3600 * 24 ) ) )->text()
 796                 );
 797                 $defaultPreferences['rclimit'] = array(
 798                         'type' => 'int',
 799                         'label-message' => 'recentchangescount',
 800                         'help-message' => 'prefs-help-recentchangescount',
 801                         'section' => 'rc/displayrc',
 802                 );
 803                 $defaultPreferences['usenewrc'] = array(
 804                         'type' => 'toggle',
 805                         'label-message' => 'tog-usenewrc',
 806                         'section' => 'rc/advancedrc',
 807                 );
 808                 $defaultPreferences['hideminor'] = array(
 809                         'type' => 'toggle',
 810                         'label-message' => 'tog-hideminor',
 811                         'section' => 'rc/advancedrc',
 812                 );
 813
 814                 if ( $user->useRCPatrol() ) {
 815                         $defaultPreferences['hidepatrolled'] = array(
 816                                 'type' => 'toggle',
 817                                 'section' => 'rc/advancedrc',
 818                                 'label-message' => 'tog-hidepatrolled',
 819                         );
 820                         $defaultPreferences['newpageshidepatrolled'] = array(
 821                                 'type' => 'toggle',
 822                                 'section' => 'rc/advancedrc',
 823                                 'label-message' => 'tog-newpageshidepatrolled',
 824                         );
 825                 }
 826
 827                 if ( $wgRCShowWatchingUsers ) {
 828                         $defaultPreferences['shownumberswatching'] = array(
 829                                 'type' => 'toggle',
 830                                 'section' => 'rc/advancedrc',
 831                                 'label-message' => 'tog-shownumberswatching',
 832                         );
 833                 }
 834         }
 835
 836         /**
 837          * @param $user User
 838          * @param $context IContextSource
 839          * @param $defaultPreferences
 840          */
 841         static function watchlistPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 842                 global $wgUseRCPatrol, $wgEnableAPI, $wgRCMaxAge;
 843
 844                 $watchlistdaysMax = ceil( $wgRCMaxAge / ( 3600 * 24 ) );
 845
 846                 ## Watchlist #####################################
 847                 $defaultPreferences['watchlistdays'] = array(
 848                         'type' => 'float',
 849                         'min' => 0,
 850                         'max' => $watchlistdaysMax,
 851                         'section' => 'watchlist/displaywatchlist',
 852                         'help' => $context->msg( 'prefs-watchlist-days-max' )->numParams(
 853                                                  $watchlistdaysMax )->text(),
 854                         'label-message' => 'prefs-watchlist-days',
 855                 );
 856                 $defaultPreferences['wllimit'] = array(
 857                         'type' => 'int',
 858                         'min' => 0,
 859                         'max' => 1000,
 860                         'label-message' => 'prefs-watchlist-edits',
 861                         'help' => $context->msg( 'prefs-watchlist-edits-max' )->escaped(),
 862                         'section' => 'watchlist/displaywatchlist',
 863                 );
 864                 $defaultPreferences['extendwatchlist'] = array(
 865                         'type' => 'toggle',
 866                         'section' => 'watchlist/advancedwatchlist',
 867                         'label-message' => 'tog-extendwatchlist',
 868                 );
 869                 $defaultPreferences['watchlisthideminor'] = array(
 870                         'type' => 'toggle',
 871                         'section' => 'watchlist/advancedwatchlist',
 872                         'label-message' => 'tog-watchlisthideminor',
 873                 );
 874                 $defaultPreferences['watchlisthidebots'] = array(
 875                         'type' => 'toggle',
 876                         'section' => 'watchlist/advancedwatchlist',
 877                         'label-message' => 'tog-watchlisthidebots',
 878                 );
 879                 $defaultPreferences['watchlisthideown'] = array(
 880                         'type' => 'toggle',
 881                         'section' => 'watchlist/advancedwatchlist',
 882                         'label-message' => 'tog-watchlisthideown',
 883                 );
 884                 $defaultPreferences['watchlisthideanons'] = array(
 885                         'type' => 'toggle',
 886                         'section' => 'watchlist/advancedwatchlist',
 887                         'label-message' => 'tog-watchlisthideanons',
 888                 );
 889                 $defaultPreferences['watchlisthideliu'] = array(
 890                         'type' => 'toggle',
 891                         'section' => 'watchlist/advancedwatchlist',
 892                         'label-message' => 'tog-watchlisthideliu',
 893                 );
 894
 895                 if ( $wgUseRCPatrol ) {
 896                         $defaultPreferences['watchlisthidepatrolled'] = array(
 897                                 'type' => 'toggle',
 898                                 'section' => 'watchlist/advancedwatchlist',
 899                                 'label-message' => 'tog-watchlisthidepatrolled',
 900                         );
 901                 }
 902
 903                 if ( $wgEnableAPI ) {
 904                         # Some random gibberish as a proposed default
 905                         $hash = sha1( mt_rand() . microtime( true ) );
 906
 907                         $defaultPreferences['watchlisttoken'] = array(
 908                                 'type' => 'text',
 909                                 'section' => 'watchlist/advancedwatchlist',
 910                                 'label-message' => 'prefs-watchlist-token',
 911                                 'help' => $context->msg( 'prefs-help-watchlist-token', $hash )->escaped()
 912                         );
 913                 }
 914
 915                 $watchTypes = array(
 916                         'edit' => 'watchdefault',
 917                         'move' => 'watchmoves',
 918                         'delete' => 'watchdeletion'
 919                 );
 920
 921                 // Kinda hacky
 922                 if ( $user->isAllowed( 'createpage' ) || $user->isAllowed( 'createtalk' ) ) {
 923                         $watchTypes['read'] = 'watchcreations';
 924                 }
 925
 926                 foreach ( $watchTypes as $action => $pref ) {
 927                         if ( $user->isAllowed( $action ) ) {
 928                                 $defaultPreferences[$pref] = array(
 929                                         'type' => 'toggle',
 930                                         'section' => 'watchlist/advancedwatchlist',
 931                                         'label-message' => "tog-$pref",
 932                                 );
 933                         }
 934                 }
 935         }
 936
 937         /**
 938          * @param $user User
 939          * @param $context IContextSource
 940          * @param $defaultPreferences Array
 941          */
 942         static function searchPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 943                 global $wgContLang, $wgEnableMWSuggest, $wgVectorUseSimpleSearch;
 944
 945                 ## Search #####################################
 946                 $defaultPreferences['searchlimit'] = array(
 947                         'type' => 'int',
 948                         'label-message' => 'resultsperpage',
 949                         'section' => 'searchoptions/displaysearchoptions',
 950                         'min' => 0,
 951                 );
 952
 953                 if ( $wgEnableMWSuggest ) {
 954                         $defaultPreferences['disablesuggest'] = array(
 955                                 'type' => 'toggle',
 956                                 'label-message' => 'mwsuggest-disable',
 957                                 'section' => 'searchoptions/displaysearchoptions',
 958                         );
 959                 }
 960
 961                 if ( $wgVectorUseSimpleSearch ) {
 962                         $defaultPreferences['vector-simplesearch'] = array(
 963                                 'type' => 'toggle',
 964                                 'label-message' => 'vector-simplesearch-preference',
 965                                 'section' => 'searchoptions/displaysearchoptions'
 966                         );
 967                 }
 968
 969                 $defaultPreferences['searcheverything'] = array(
 970                         'type' => 'toggle',
 971                         'label-message' => 'searcheverything-enable',
 972                         'section' => 'searchoptions/advancedsearchoptions',
 973                 );
 974
 975                 $nsOptions = array();
 976
 977                 foreach ( $wgContLang->getNamespaces() as $ns => $name ) {
 978                         if ( $ns < 0 ) {
 979                                 continue;
 980                         }
 981
 982                         $displayNs = str_replace( '_', ' ', $name );
 983
 984                         if ( !$displayNs ) {
 985                                 $displayNs = $context->msg( 'blanknamespace' )->text();
 986                         }
 987
 988                         $displayNs = htmlspecialchars( $displayNs );
 989                         $nsOptions[$displayNs] = $ns;
 990                 }
 991
 992                 $defaultPreferences['searchnamespaces'] = array(
 993                         'type' => 'multiselect',
 994                         'label-message' => 'defaultns',
 995                         'options' => $nsOptions,
 996                         'section' => 'searchoptions/advancedsearchoptions',
 997                         'prefix' => 'searchNs',
 998                 );
 999         }
1000
1001         /**
1002          * @param $user User
1003          * @param $context IContextSource
1004          * @param $defaultPreferences Array
1005          */
1006         static function miscPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1007                 global $wgContLang;
1008
1009                 ## Misc #####################################
1010                 $defaultPreferences['diffonly'] = array(
1011                         'type' => 'toggle',
1012                         'section' => 'misc/diffs',
1013                         'label-message' => 'tog-diffonly',
1014                 );
1015                 $defaultPreferences['norollbackdiff'] = array(
1016                         'type' => 'toggle',
1017                         'section' => 'misc/diffs',
1018                         'label-message' => 'tog-norollbackdiff',
1019                 );
1020
1021                 // Stuff from Language::getExtraUserToggles()
1022                 $toggles = $wgContLang->getExtraUserToggles();
1023
1024                 foreach ( $toggles as $toggle ) {
1025                         $defaultPreferences[$toggle] = array(
1026                                 'type' => 'toggle',
1027                                 'section' => 'personal/i18n',
1028                                 'label-message' => "tog-$toggle",
1029                         );
1030                 }
1031         }
1032
1033         /**
1034          * @param $user User The User object
1035          * @param $context IContextSource
1036          * @return Array: text/links to display as key; $skinkey as value
1037          */
1038         static function generateSkinOptions( $user, IContextSource $context ) {
1039                 global $wgDefaultSkin, $wgAllowUserCss, $wgAllowUserJs;
1040                 $ret = array();
1041
1042                 $mptitle = Title::newMainPage();
1043                 $previewtext = $context->msg( 'skin-preview' )->text();
1044
1045                 # Only show members of Skin::getSkinNames() rather than
1046                 # $skinNames (skins is all skin names from Language.php)
1047                 $validSkinNames = Skin::getUsableSkins();
1048
1049                 # Sort by UI skin name. First though need to update validSkinNames as sometimes
1050                 # the skinkey & UI skinname differ (e.g. "standard" skinkey is "Classic" in the UI).
1051                 foreach ( $validSkinNames as $skinkey => &$skinname ) {
1052                         $msg = $context->msg( "skinname-{$skinkey}" );
1053                         if ( $msg->exists() ) {
1054                                 $skinname = htmlspecialchars( $msg->text() );
1055                         }
1056                 }
1057                 asort( $validSkinNames );
1058
1059                 foreach ( $validSkinNames as $skinkey => $sn ) {
1060                         $linkTools = array();
1061
1062                         # Mark the default skin
1063                         if ( $skinkey == $wgDefaultSkin ) {
1064                                 $linkTools[] = $context->msg( 'default' )->escaped();
1065                         }
1066
1067                         # Create preview link
1068                         $mplink = htmlspecialchars( $mptitle->getLocalURL( "useskin=$skinkey" ) );
1069                         $linkTools[] = "<a target='_blank' href=\"$mplink\">$previewtext</a>";
1070
1071                         # Create links to user CSS/JS pages
1072                         if ( $wgAllowUserCss ) {
1073                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.css' );
1074                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
1075                         }
1076
1077                         if ( $wgAllowUserJs ) {
1078                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.js' );
1079                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
1080                         }
1081
1082                         $display = $sn . ' ' . $context->msg( 'parentheses', $context->getLanguage()->pipeList( $linkTools ) )->text();
1083                         $ret[$display] = $skinkey;
1084                 }
1085
1086                 return $ret;
1087         }
1088
1089         /**
1090          * @param $context IContextSource
1091          * @return array
1092          */
1093         static function getDateOptions( IContextSource $context ) {
1094                 $lang = $context->getLanguage();
1095                 $dateopts = $lang->getDatePreferences();
1096
1097                 $ret = array();
1098
1099                 if ( $dateopts ) {
1100                         if ( !in_array( 'default', $dateopts ) ) {
1101                                 $dateopts[] = 'default'; // Make sure default is always valid
1102                                                                                 // Bug 19237
1103                         }
1104
1105                         // KLUGE: site default might not be valid for user language
1106                         global $wgDefaultUserOptions;
1107                         if ( !in_array( $wgDefaultUserOptions['date'], $dateopts ) ) {
1108                                 $wgDefaultUserOptions['date'] = 'default';
1109                         }
1110
1111                         $epoch = wfTimestampNow();
1112                         foreach ( $dateopts as $key ) {
1113                                 if ( $key == 'default' ) {
1114                                         $formatted = $context->msg( 'datedefault' )->escaped();
1115                                 } else {
1116                                         $formatted = htmlspecialchars( $lang->timeanddate( $epoch, false, $key ) );
1117                                 }
1118                                 $ret[$formatted] = $key;
1119                         }
1120                 }
1121                 return $ret;
1122         }
1123
1124         /**
1125          * @param $context IContextSource
1126          * @return array
1127          */
1128         static function getImageSizes( IContextSource $context ) {
1129                 global $wgImageLimits;
1130
1131                 $ret = array();
1132                 $pixels = $context->msg( 'unit-pixel' )->text();
1133
1134                 foreach ( $wgImageLimits as $index => $limits ) {
1135                         $display = "{$limits[0]}×{$limits[1]}" . $pixels;
1136                         $ret[$display] = $index;
1137                 }
1138
1139                 return $ret;
1140         }
1141
1142         /**
1143          * @param $context IContextSource
1144          * @return array
1145          */
1146         static function getThumbSizes( IContextSource $context ) {
1147                 global $wgThumbLimits;
1148
1149                 $ret = array();
1150                 $pixels = $context->msg( 'unit-pixel' )->text();
1151
1152                 foreach ( $wgThumbLimits as $index => $size ) {
1153                         $display = $size . $pixels;
1154                         $ret[$display] = $index;
1155                 }
1156
1157                 return $ret;
1158         }
1159
1160         /**
1161          * @param $signature string
1162          * @param $alldata array
1163          * @param $form HTMLForm
1164          * @return bool|string
1165          */
1166         static function validateSignature( $signature, $alldata, $form ) {
1167                 global $wgParser, $wgMaxSigChars;
1168                 if ( mb_strlen( $signature ) > $wgMaxSigChars ) {
1169                         return Xml::element( 'span', array( 'class' => 'error' ),
1170                                 $form->msg( 'badsiglength' )->numParams( $wgMaxSigChars )->text() );
1171                 } elseif ( isset( $alldata['fancysig'] ) &&
1172                                 $alldata['fancysig'] &&
1173                                 false === $wgParser->validateSig( $signature ) ) {
1174                         return Xml::element( 'span', array( 'class' => 'error' ), $form->msg( 'badsig' )->text() );
1175                 } else {
1176                         return true;
1177                 }
1178         }
1179
1180         /**
1181          * @param $signature string
1182          * @param $alldata array
1183          * @param $form HTMLForm
1184          * @return string
1185          */
1186         static function cleanSignature( $signature, $alldata, $form ) {
1187                 if ( isset( $alldata['fancysig'] ) && $alldata['fancysig'] ) {
1188                         global $wgParser;
1189                         $signature = $wgParser->cleanSig( $signature );
1190                 } else {
1191                         // When no fancy sig used, make sure ~{3,5} get removed.
1192                         $signature = Parser::cleanSigInSig( $signature );
1193                 }
1194
1195                 return $signature;
1196         }
1197
1198         /**
1199          * @param $user User
1200          * @param $context IContextSource
1201          * @param $formClass string
1202          * @param $remove Array: array of items to remove
1203          * @return HtmlForm
1204          */
1205         static function getFormObject( $user, IContextSource $context, $formClass = 'PreferencesForm', array $remove = array() ) {
1206                 $formDescriptor = Preferences::getPreferences( $user, $context );
1207                 if ( count( $remove ) ) {
1208                         $removeKeys = array_flip( $remove );
1209                         $formDescriptor = array_diff_key( $formDescriptor, $removeKeys );
1210                 }
1211                 $htmlForm = new $formClass( $formDescriptor, $context, 'prefs' );
1212
1213                 $htmlForm->setModifiedUser( $user );
1214                 $htmlForm->setId( 'mw-prefs-form' );
1215                 $htmlForm->setSubmitText( $context->msg( 'saveprefs' )->text() );
1216                 # Used message keys: 'accesskey-preferences-save', 'tooltip-preferences-save'
1217                 $htmlForm->setSubmitTooltip( 'preferences-save' );
1218                 $htmlForm->setSubmitID( 'prefsubmit' );
1219                 $htmlForm->setSubmitCallback( array( 'Preferences', 'tryFormSubmit' ) );
1220
1221                 return $htmlForm;
1222         }
1223
1224         /**
1225          * @return array
1226          */
1227         static function getTimezoneOptions( IContextSource $context ) {
1228                 $opt = array();
1229
1230                 global $wgLocalTZoffset, $wgLocaltimezone;
1231                 // Check that $wgLocalTZoffset is the same as $wgLocaltimezone
1232                 if ( $wgLocalTZoffset == date( 'Z' ) / 60 ) {
1233                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $wgLocaltimezone )->text();
1234                 } else {
1235                         $tzstring = sprintf( '%+03d:%02d', floor( $wgLocalTZoffset / 60 ), abs( $wgLocalTZoffset ) % 60 );
1236                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $tzstring )->text();
1237                 }
1238                 $opt[$server_tz_msg] = "System|$wgLocalTZoffset";
1239                 $opt[$context->msg( 'timezoneuseoffset' )->text()] = 'other';
1240                 $opt[$context->msg( 'guesstimezone' )->text()] = 'guess';
1241
1242                 if ( function_exists( 'timezone_identifiers_list' ) ) {
1243                         # Read timezone list
1244                         $tzs = timezone_identifiers_list();
1245                         sort( $tzs );
1246
1247                         $tzRegions = array();
1248                         $tzRegions['Africa'] = $context->msg( 'timezoneregion-africa' )->text();
1249                         $tzRegions['America'] = $context->msg( 'timezoneregion-america' )->text();
1250                         $tzRegions['Antarctica'] = $context->msg( 'timezoneregion-antarctica' )->text();
1251                         $tzRegions['Arctic'] = $context->msg( 'timezoneregion-arctic' )->text();
1252                         $tzRegions['Asia'] = $context->msg( 'timezoneregion-asia' )->text();
1253                         $tzRegions['Atlantic'] = $context->msg( 'timezoneregion-atlantic' )->text();
1254                         $tzRegions['Australia'] = $context->msg( 'timezoneregion-australia' )->text();
1255                         $tzRegions['Europe'] = $context->msg( 'timezoneregion-europe' )->text();
1256                         $tzRegions['Indian'] = $context->msg( 'timezoneregion-indian' )->text();
1257                         $tzRegions['Pacific'] = $context->msg( 'timezoneregion-pacific' )->text();
1258                         asort( $tzRegions );
1259
1260                         $prefill = array_fill_keys( array_values( $tzRegions ), array() );
1261                         $opt = array_merge( $opt, $prefill );
1262
1263                         $now = date_create( 'now' );
1264
1265                         foreach ( $tzs as $tz ) {
1266                                 $z = explode( '/', $tz, 2 );
1267
1268                                 # timezone_identifiers_list() returns a number of
1269                                 # backwards-compatibility entries. This filters them out of the
1270                                 # list presented to the user.
1271                                 if ( count( $z ) != 2 || !array_key_exists( $z[0], $tzRegions ) ) {
1272                                         continue;
1273                                 }
1274
1275                                 # Localize region
1276                                 $z[0] = $tzRegions[$z[0]];
1277
1278                                 $minDiff = floor( timezone_offset_get( timezone_open( $tz ), $now ) / 60 );
1279
1280                                 $display = str_replace( '_', ' ', $z[0] . '/' . $z[1] );
1281                                 $value = "ZoneInfo|$minDiff|$tz";
1282
1283                                 $opt[$z[0]][$display] = $value;
1284                         }
1285                 }
1286                 return $opt;
1287         }
1288
1289         /**
1290          * @param $value
1291          * @param $alldata
1292          * @return int
1293          */
1294         static function filterIntval( $value, $alldata ){
1295                 return intval( $value );
1296         }
1297
1298         /**
1299          * @param $tz
1300          * @param $alldata
1301          * @return string
1302          */
1303         static function filterTimezoneInput( $tz, $alldata ) {
1304                 $data = explode( '|', $tz, 3 );
1305                 switch ( $data[0] ) {
1306                         case 'ZoneInfo':
1307                         case 'System':
1308                                 return $tz;
1309                         default:
1310                                 $data = explode( ':', $tz, 2 );
1311                                 if ( count( $data ) == 2 ) {
1312                                         $data[0] = intval( $data[0] );
1313                                         $data[1] = intval( $data[1] );
1314                                         $minDiff = abs( $data[0] ) * 60 + $data[1];
1315                                         if ( $data[0] < 0 ) $minDiff = - $minDiff;
1316                                 } else {
1317                                         $minDiff = intval( $data[0] ) * 60;
1318                                 }
1319
1320                                 # Max is +14:00 and min is -12:00, see:
1321                                 # http://en.wikipedia.org/wiki/Timezone
1322                                 $minDiff = min( $minDiff, 840 );  # 14:00
1323                                 $minDiff = max( $minDiff, - 720 ); # -12:00
1324                                 return 'Offset|' . $minDiff;
1325                 }
1326         }
1327
1328         /**
1329          * @param $formData
1330          * @param $form HTMLForm
1331          * @param $entryPoint string
1332          * @return bool|Status|string
1333          */
1334         static function tryFormSubmit( $formData, $form, $entryPoint = 'internal' ) {
1335                 global $wgHiddenPrefs;
1336
1337                 $user = $form->getModifiedUser();
1338                 $result = true;
1339
1340                 // Filter input
1341                 foreach ( array_keys( $formData ) as $name ) {
1342                         if ( isset( self::$saveFilters[$name] ) ) {
1343                                 $formData[$name] =
1344                                         call_user_func( self::$saveFilters[$name], $formData[$name], $formData );
1345                         }
1346                 }
1347
1348                 // Stuff that shouldn't be saved as a preference.
1349                 $saveBlacklist = array(
1350                         'realname',
1351                         'emailaddress',
1352                 );
1353
1354                 // Fortunately, the realname field is MUCH simpler
1355                 if ( !in_array( 'realname', $wgHiddenPrefs ) ) {
1356                         $realName = $formData['realname'];
1357                         $user->setRealName( $realName );
1358                 }
1359
1360                 foreach ( $saveBlacklist as $b ) {
1361                         unset( $formData[$b] );
1362                 }
1363
1364                 # If users have saved a value for a preference which has subsequently been disabled
1365                 # via $wgHiddenPrefs, we don't want to destroy that setting in case the preference
1366                 # is subsequently re-enabled
1367                 # TODO: maintenance script to actually delete these
1368                 foreach( $wgHiddenPrefs as $pref ){
1369                         # If the user has not set a non-default value here, the default will be returned
1370                         # and subsequently discarded
1371                         $formData[$pref] = $user->getOption( $pref, null, true );
1372                 }
1373
1374                 //  Keeps old preferences from interfering due to back-compat
1375                 //  code, etc.
1376                 $user->resetOptions();
1377
1378                 foreach ( $formData as $key => $value ) {
1379                         $user->setOption( $key, $value );
1380                 }
1381
1382                 $user->saveSettings();
1383
1384                 return $result;
1385         }
1386
1387         /**
1388          * @param $formData
1389          * @return Status
1390          */
1391         public static function tryUISubmit( $formData, $form ) {
1392                 $res = self::tryFormSubmit( $formData, $form, 'ui' );
1393
1394                 if ( $res ) {
1395                         $urlOptions = array( 'success' => 1 );
1396
1397                         if ( $res === 'eauth' ) {
1398                                 $urlOptions['eauth'] = 1;
1399                         }
1400
1401                         $urlOptions += $form->getExtraSuccessRedirectParameters();
1402
1403                         $url = $form->getTitle()->getFullURL( $urlOptions );
1404
1405                         $form->getContext()->getOutput()->redirect( $url );
1406                 }
1407
1408                 return Status::newGood();
1409         }
1410
1411         /**
1412          * Try to set a user's email address.
1413          * This does *not* try to validate the address.
1414          * Caller is responsible for checking $wgAuth.
1415          * @param $user User
1416          * @param $newaddr string New email address
1417          * @return Array (true on success or Status on failure, info string)
1418          */
1419         public static function trySetUserEmail( User $user, $newaddr ) {
1420                 global $wgEnableEmail, $wgEmailAuthentication;
1421                 $info = ''; // none
1422
1423                 if ( $wgEnableEmail ) {
1424                         $oldaddr = $user->getEmail();
1425                         if ( ( $newaddr != '' ) && ( $newaddr != $oldaddr ) ) {
1426                                 # The user has supplied a new email address on the login page
1427                                 # new behaviour: set this new emailaddr from login-page into user database record
1428                                 $user->setEmail( $newaddr );
1429                                 if ( $wgEmailAuthentication ) {
1430                                         # Mail a temporary password to the dirty address.
1431                                         # User can come back through the confirmation URL to re-enable email.
1432                                         $type = $oldaddr != '' ? 'changed' : 'set';
1433                                         $result = $user->sendConfirmationMail( $type );
1434                                         if ( !$result->isGood() ) {
1435                                                 return array( $result, 'mailerror' );
1436                                         }
1437                                         $info = 'eauth';
1438                                 }
1439                         } elseif ( $newaddr != $oldaddr ) { // if the address is the same, don't change it
1440                                 $user->setEmail( $newaddr );
1441                         }
1442                         if ( $oldaddr != $newaddr ) {
1443                                 wfRunHooks( 'PrefsEmailAudit', array( $user, $oldaddr, $newaddr ) );
1444                         }
1445                 }
1446
1447                 return array( true, $info );
1448         }
1449
1450         /**
1451          * @param $user User
1452          * @return array
1453          */
1454         public static function loadOldSearchNs( $user ) {
1455                 $searchableNamespaces = SearchEngine::searchableNamespaces();
1456                 // Back compat with old format
1457                 $arr = array();
1458
1459                 foreach ( $searchableNamespaces as $ns => $name ) {
1460                         if ( $user->getOption( 'searchNs' . $ns ) ) {
1461                                 $arr[] = $ns;
1462                         }
1463                 }
1464
1465                 return $arr;
1466         }
1467 }
1468
1469 /** Some tweaks to allow js prefs to work */
1470 class PreferencesForm extends HTMLForm {
1471         // Override default value from HTMLForm
1472         protected $mSubSectionBeforeFields = false;
1473
1474         private $modifiedUser;
1475
1476         public function setModifiedUser( $user ) {
1477                 $this->modifiedUser = $user;
1478         }
1479
1480         public function getModifiedUser() {
1481                 if ( $this->modifiedUser === null ) {
1482                         return $this->getUser();
1483                 } else {
1484                         return $this->modifiedUser;
1485                 }
1486         }
1487
1488         /**
1489          * Get extra parameters for the query string when redirecting after
1490          * successful save.
1491          *
1492          * @return array()
1493          */
1494         public function getExtraSuccessRedirectParameters() {
1495                 return array();
1496         }
1497
1498         /**
1499          * @param $html string
1500          * @return String
1501          */
1502         function wrapForm( $html ) {
1503                 $html = Xml::tags( 'div', array( 'id' => 'preferences' ), $html );
1504
1505                 return parent::wrapForm( $html );
1506         }
1507
1508         /**
1509          * @return String
1510          */
1511         function getButtons() {
1512                 $html = parent::getButtons();
1513
1514                 $t = SpecialPage::getTitleFor( 'Preferences', 'reset' );
1515
1516                 $html .= "\n" . Linker::link( $t, $this->msg( 'restoreprefs' )->escaped() );
1517
1518                 $html = Xml::tags( 'div', array( 'class' => 'mw-prefs-buttons' ), $html );
1519
1520                 return $html;
1521         }
1522
1523         /**
1524          * @param $data array
1525          * @return array
1526          */
1527         function filterDataForSubmit( $data ) {
1528                 // Support for separating MultiSelect preferences into multiple preferences
1529                 // Due to lack of array support.
1530                 foreach ( $this->mFlatFields as $fieldname => $field ) {
1531                         $info = $field->mParams;
1532                         if ( $field instanceof HTMLMultiSelectField ) {
1533                                 $options = HTMLFormField::flattenOptions( $info['options'] );
1534                                 $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $fieldname;
1535
1536                                 foreach ( $options as $opt ) {
1537                                         $data["$prefix$opt"] = in_array( $opt, $data[$fieldname] );
1538                                 }
1539
1540                                 unset( $data[$fieldname] );
1541                         }
1542                 }
1543
1544                 return $data;
1545         }
1546         /**
1547          * Get the whole body of the form.
1548          */
1549         function getBody() {
1550                 return $this->displaySection( $this->mFieldTree, '', 'mw-prefsection-' );
1551         }
1552
1553         /**
1554          * Get the <legend> for a given section key. Normally this is the
1555          * prefs-$key message but we'll allow extensions to override it.
1556          */
1557         function getLegend( $key ) {
1558                 $legend = parent::getLegend( $key );
1559                 wfRunHooks( 'PreferencesGetLegend', array( $this, $key, &$legend ) );
1560                 return $legend;
1561         }
1562 }