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          * @return void
 133          */
 134         static function profilePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 135                 global $wgAuth, $wgContLang, $wgParser, $wgCookieExpiration, $wgLanguageCode,
 136                         $wgDisableTitleConversion, $wgDisableLangConversion, $wgMaxSigChars,
 137                         $wgEnableEmail, $wgEmailConfirmToEdit, $wgEnableUserEmail, $wgEmailAuthentication,
 138                         $wgEnotifWatchlist, $wgEnotifUserTalk, $wgEnotifRevealEditorAddress;
 139
 140                 ## User info #####################################
 141                 // Information panel
 142                 $defaultPreferences['username'] = array(
 143                         'type' => 'info',
 144                         'label-message' => 'username',
 145                         'default' => $user->getName(),
 146                         'section' => 'personal/info',
 147                 );
 148
 149                 $defaultPreferences['userid'] = array(
 150                         'type' => 'info',
 151                         'label-message' => 'uid',
 152                         'default' => $user->getId(),
 153                         'section' => 'personal/info',
 154                 );
 155
 156                 # Get groups to which the user belongs
 157                 $userEffectiveGroups = $user->getEffectiveGroups();
 158                 $userGroups = $userMembers = array();
 159                 foreach ( $userEffectiveGroups as $ueg ) {
 160                         if ( $ueg == '*' ) {
 161                                 // Skip the default * group, seems useless here
 162                                 continue;
 163                         }
 164                         $groupName  = User::getGroupName( $ueg );
 165                         $userGroups[] = User::makeGroupLinkHTML( $ueg, $groupName );
 166
 167                         $memberName = User::getGroupMember( $ueg, $user->getName() );
 168                         $userMembers[] = User::makeGroupLinkHTML( $ueg, $memberName );
 169                 }
 170                 asort( $userGroups );
 171                 asort( $userMembers );
 172
 173                 $lang = $context->getLanguage();
 174
 175                 $defaultPreferences['usergroups'] = array(
 176                         'type' => 'info',
 177                         'label' => $context->msg( 'prefs-memberingroups' )->numParams(
 178                                 count( $userGroups ) )->parse(),
 179                         'default' => $context->msg( 'prefs-memberingroups-type',
 180                                 $lang->commaList( $userGroups ),
 181                                 $lang->commaList( $userMembers )
 182                         )->plain(),
 183                         'raw' => true,
 184                         'section' => 'personal/info',
 185                 );
 186
 187                 $defaultPreferences['editcount'] = array(
 188                         'type' => 'info',
 189                         'label-message' => 'prefs-edits',
 190                         'default' => $lang->formatNum( $user->getEditCount() ),
 191                         'section' => 'personal/info',
 192                 );
 193
 194                 if ( $user->getRegistration() ) {
 195                         $displayUser = $context->getUser();
 196                         $userRegistration = $user->getRegistration();
 197                         $defaultPreferences['registrationdate'] = array(
 198                                 'type' => 'info',
 199                                 'label-message' => 'prefs-registration',
 200                                 'default' => $context->msg(
 201                                         'prefs-registration-date-time',
 202                                         $lang->userTimeAndDate( $userRegistration, $displayUser ),
 203                                         $lang->userDate( $userRegistration, $displayUser ),
 204                                         $lang->userTime( $userRegistration, $displayUser )
 205                                 )->parse(),
 206                                 'section' => 'personal/info',
 207                         );
 208                 }
 209
 210                 // Actually changeable stuff
 211                 $defaultPreferences['realname'] = array(
 212                         'type' => $wgAuth->allowPropChange( 'realname' ) ? 'text' : 'info',
 213                         'default' => $user->getRealName(),
 214                         'section' => 'personal/info',
 215                         'label-message' => 'yourrealname',
 216                         'help-message' => 'prefs-help-realname',
 217                 );
 218
 219                 $defaultPreferences['gender'] = array(
 220                         'type' => 'select',
 221                         'section' => 'personal/info',
 222                         'options' => array(
 223                                 $context->msg( 'gender-male' )->text() => 'male',
 224                                 $context->msg( 'gender-female' )->text() => 'female',
 225                                 $context->msg( 'gender-unknown' )->text() => 'unknown',
 226                         ),
 227                         'label-message' => 'yourgender',
 228                         'help-message' => 'prefs-help-gender',
 229                 );
 230
 231                 if ( $wgAuth->allowPasswordChange() ) {
 232                         $link = Linker::link( SpecialPage::getTitleFor( 'ChangePassword' ),
 233                                 $context->msg( 'prefs-resetpass' )->escaped(), array(),
 234                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' ) ) );
 235
 236                         $defaultPreferences['password'] = array(
 237                                 'type' => 'info',
 238                                 'raw' => true,
 239                                 'default' => $link,
 240                                 'label-message' => 'yourpassword',
 241                                 'section' => 'personal/info',
 242                         );
 243                 }
 244                 if ( $wgCookieExpiration > 0 ) {
 245                         $defaultPreferences['rememberpassword'] = array(
 246                                 'type' => 'toggle',
 247                                 'label' => $context->msg( 'tog-rememberpassword' )->numParams(
 248                                         ceil( $wgCookieExpiration / ( 3600 * 24 ) ) )->text(),
 249                                 'section' => 'personal/info',
 250                         );
 251                 }
 252
 253                 // Language
 254                 $languages = Language::getLanguageNames( false );
 255                 if ( !array_key_exists( $wgLanguageCode, $languages ) ) {
 256                         $languages[$wgLanguageCode] = $wgLanguageCode;
 257                 }
 258                 ksort( $languages );
 259
 260                 $options = array();
 261                 foreach ( $languages as $code => $name ) {
 262                         $display = wfBCP47( $code ) . ' - ' . $name;
 263                         $options[$display] = $code;
 264                 }
 265                 $defaultPreferences['language'] = array(
 266                         'type' => 'select',
 267                         'section' => 'personal/i18n',
 268                         'options' => $options,
 269                         'label-message' => 'yourlanguage',
 270                 );
 271
 272                 /* see if there are multiple language variants to choose from*/
 273                 $variantArray = array();
 274                 if ( !$wgDisableLangConversion ) {
 275                         $variants = $wgContLang->getVariants();
 276
 277                         foreach ( $variants as $v ) {
 278                                 $v = str_replace( '_', '-', strtolower( $v ) );
 279                                 $variantArray[$v] = $wgContLang->getVariantname( $v, false );
 280                         }
 281
 282                         $options = array();
 283                         foreach ( $variantArray as $code => $name ) {
 284                                 $display = wfBCP47( $code ) . ' - ' . $name;
 285                                 $options[$display] = $code;
 286                         }
 287
 288                         if ( count( $variantArray ) > 1 ) {
 289                                 $defaultPreferences['variant'] = array(
 290                                         'label-message' => 'yourvariant',
 291                                         'type' => 'select',
 292                                         'options' => $options,
 293                                         'section' => 'personal/i18n',
 294                                         'help-message' => 'prefs-help-variant',
 295                                 );
 296                         }
 297                 }
 298
 299                 if ( count( $variantArray ) > 1 && !$wgDisableLangConversion && !$wgDisableTitleConversion ) {
 300                         $defaultPreferences['noconvertlink'] =
 301                                 array(
 302                                 'type' => 'toggle',
 303                                 'section' => 'personal/i18n',
 304                                 'label-message' => 'tog-noconvertlink',
 305                         );
 306                 }
 307
 308                 // show a preview of the old signature first
 309                 $oldsigWikiText = $wgParser->preSaveTransform( "~~~", $context->getTitle(), $user, ParserOptions::newFromContext( $context ) );
 310                 $oldsigHTML = $context->getOutput()->parseInline( $oldsigWikiText, true, true );
 311                 $defaultPreferences['oldsig'] = array(
 312                         'type' => 'info',
 313                         'raw' => true,
 314                         'label-message' => 'tog-oldsig',
 315                         'default' => $oldsigHTML,
 316                         'section' => 'personal/signature',
 317                 );
 318                 $defaultPreferences['nickname'] = array(
 319                         'type' => $wgAuth->allowPropChange( 'nickname' ) ? 'text' : 'info',
 320                         'maxlength' => $wgMaxSigChars,
 321                         'label-message' => 'yournick',
 322                         'validation-callback' => array( 'Preferences', 'validateSignature' ),
 323                         'section' => 'personal/signature',
 324                         'filter-callback' => array( 'Preferences', 'cleanSignature' ),
 325                 );
 326                 $defaultPreferences['fancysig'] = array(
 327                         'type' => 'toggle',
 328                         'label-message' => 'tog-fancysig',
 329                         'help-message' => 'prefs-help-signature', // show general help about signature at the bottom of the section
 330                         'section' => 'personal/signature'
 331                 );
 332
 333                 ## Email stuff
 334
 335                 if ( $wgEnableEmail ) {
 336                         $helpMessages[] = $wgEmailConfirmToEdit
 337                                         ? 'prefs-help-email-required'
 338                                         : 'prefs-help-email' ;
 339
 340                         if( $wgEnableUserEmail ) {
 341                                 // additional messages when users can send email to each other
 342                                 $helpMessages[] = 'prefs-help-email-others';
 343                         }
 344
 345                         $link = Linker::link(
 346                                 SpecialPage::getTitleFor( 'ChangeEmail' ),
 347                                 $context->msg( $user->getEmail() ? 'prefs-changeemail' : 'prefs-setemail' )->escaped(),
 348                                 array(),
 349                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' ) ) );
 350
 351                         $emailAddress = $user->getEmail() ? htmlspecialchars( $user->getEmail() ) : '';
 352                         if ( $wgAuth->allowPropChange( 'emailaddress' ) ) {
 353                                 $emailAddress .= $emailAddress == '' ? $link : " ($link)";
 354                         }
 355
 356                         $defaultPreferences['emailaddress'] = array(
 357                                 'type' => 'info',
 358                                 'raw' => true,
 359                                 'default' => $emailAddress,
 360                                 'label-message' => 'youremail',
 361                                 'section' => 'personal/email',
 362                         );
 363
 364                         $disableEmailPrefs = false;
 365
 366                         if ( $wgEmailAuthentication ) {
 367                                 if ( $user->getEmail() ) {
 368                                         if ( $user->getEmailAuthenticationTimestamp() ) {
 369                                                 // date and time are separate parameters to facilitate localisation.
 370                                                 // $time is kept for backward compat reasons.
 371                                                 // 'emailauthenticated' is also used in SpecialConfirmemail.php
 372                                                 $displayUser = $context->getUser();
 373                                                 $emailTimestamp = $user->getEmailAuthenticationTimestamp();
 374                                                 $time = $lang->userTimeAndDate( $emailTimestamp, $displayUser );
 375                                                 $d = $lang->userDate( $emailTimestamp, $displayUser );
 376                                                 $t = $lang->userTime( $emailTimestamp, $displayUser );
 377                                                 $emailauthenticated = $context->msg( 'emailauthenticated',
 378                                                         $time, $d, $t )->parse() . '<br />';
 379                                                 $disableEmailPrefs = false;
 380                                         } else {
 381                                                 $disableEmailPrefs = true;
 382                                                 $emailauthenticated = $context->msg( 'emailnotauthenticated' )->parse() . '<br />' .
 383                                                         Linker::linkKnown(
 384                                                                 SpecialPage::getTitleFor( 'Confirmemail' ),
 385                                                                 $context->msg( 'emailconfirmlink' )->escaped()
 386                                                         ) . '<br />';
 387                                         }
 388                                 } else {
 389                                         $disableEmailPrefs = true;
 390                                         $emailauthenticated = $context->msg( 'noemailprefs' )->escaped();
 391                                 }
 392
 393                                 $defaultPreferences['emailauthentication'] = array(
 394                                         'type' => 'info',
 395                                         'raw' => true,
 396                                         'section' => 'personal/email',
 397                                         'label-message' => 'prefs-emailconfirm-label',
 398                                         'default' => $emailauthenticated,
 399                                 );
 400
 401                         }
 402
 403                         if ( $wgEnableUserEmail && $user->isAllowed( 'sendemail' ) ) {
 404                                 $defaultPreferences['disablemail'] = array(
 405                                         'type' => 'toggle',
 406                                         'invert' => true,
 407                                         'section' => 'personal/email',
 408                                         'label-message' => 'allowemail',
 409                                         'disabled' => $disableEmailPrefs,
 410                                 );
 411                                 $defaultPreferences['ccmeonemails'] = array(
 412                                         'type' => 'toggle',
 413                                         'section' => 'personal/email',
 414                                         'label-message' => 'tog-ccmeonemails',
 415                                         'disabled' => $disableEmailPrefs,
 416                                 );
 417                         }
 418
 419                         if ( $wgEnotifWatchlist ) {
 420                                 $defaultPreferences['enotifwatchlistpages'] = array(
 421                                         'type' => 'toggle',
 422                                         'section' => 'personal/email',
 423                                         'label-message' => 'tog-enotifwatchlistpages',
 424                                         'disabled' => $disableEmailPrefs,
 425                                 );
 426                         }
 427                         if ( $wgEnotifUserTalk ) {
 428                                 $defaultPreferences['enotifusertalkpages'] = array(
 429                                         'type' => 'toggle',
 430                                         'section' => 'personal/email',
 431                                         'label-message' => 'tog-enotifusertalkpages',
 432                                         'disabled' => $disableEmailPrefs,
 433                                 );
 434                         }
 435                         if ( $wgEnotifUserTalk || $wgEnotifWatchlist ) {
 436                                 $defaultPreferences['enotifminoredits'] = array(
 437                                         'type' => 'toggle',
 438                                         'section' => 'personal/email',
 439                                         'label-message' => 'tog-enotifminoredits',
 440                                         'disabled' => $disableEmailPrefs,
 441                                 );
 442
 443                                 if ( $wgEnotifRevealEditorAddress ) {
 444                                         $defaultPreferences['enotifrevealaddr'] = array(
 445                                                 'type' => 'toggle',
 446                                                 'section' => 'personal/email',
 447                                                 'label-message' => 'tog-enotifrevealaddr',
 448                                                 'disabled' => $disableEmailPrefs,
 449                                         );
 450                                 }
 451                         }
 452                 }
 453         }
 454
 455         /**
 456          * @param $user User
 457          * @param $context IContextSource
 458          * @param $defaultPreferences
 459          * @return void
 460          */
 461         static function skinPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 462                 ## Skin #####################################
 463                 global $wgAllowUserCss, $wgAllowUserJs;
 464
 465                 $defaultPreferences['skin'] = array(
 466                         'type' => 'radio',
 467                         'options' => self::generateSkinOptions( $user, $context ),
 468                         'label' => '&#160;',
 469                         'section' => 'rendering/skin',
 470                 );
 471
 472                 # Create links to user CSS/JS pages for all skins
 473                 # This code is basically copied from generateSkinOptions().  It'd
 474                 # be nice to somehow merge this back in there to avoid redundancy.
 475                 if ( $wgAllowUserCss || $wgAllowUserJs ) {
 476                         $linkTools = array();
 477
 478                         if ( $wgAllowUserCss ) {
 479                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/common.css' );
 480                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
 481                         }
 482
 483                         if ( $wgAllowUserJs ) {
 484                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/common.js' );
 485                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
 486                         }
 487
 488                         $defaultPreferences['commoncssjs'] = array(
 489                                 'type' => 'info',
 490                                 'raw' => true,
 491                                 'default' => $context->getLanguage()->pipeList( $linkTools ),
 492                                 'label-message' => 'prefs-common-css-js',
 493                                 'section' => 'rendering/skin',
 494                         );
 495                 }
 496
 497                 $selectedSkin = $user->getOption( 'skin' );
 498                 if ( in_array( $selectedSkin, array( 'cologneblue', 'standard' ) ) ) {
 499                         $settings = array_flip( $context->getLanguage()->getQuickbarSettings() );
 500
 501                         $defaultPreferences['quickbar'] = array(
 502                                 'type' => 'radio',
 503                                 'options' => $settings,
 504                                 'section' => 'rendering/skin',
 505                                 'label-message' => 'qbsettings',
 506                         );
 507                 }
 508         }
 509
 510         /**
 511          * @param $user User
 512          * @param $context IContextSource
 513          * @param $defaultPreferences Array
 514          */
 515         static function filesPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 516                 ## Files #####################################
 517                 $defaultPreferences['imagesize'] = array(
 518                         'type' => 'select',
 519                         'options' => self::getImageSizes( $context ),
 520                         'label-message' => 'imagemaxsize',
 521                         'section' => 'rendering/files',
 522                 );
 523                 $defaultPreferences['thumbsize'] = array(
 524                         'type' => 'select',
 525                         'options' => self::getThumbSizes( $context ),
 526                         'label-message' => 'thumbsize',
 527                         'section' => 'rendering/files',
 528                 );
 529         }
 530
 531         /**
 532          * @param $user User
 533          * @param $context IContextSource
 534          * @param $defaultPreferences
 535          * @return void
 536          */
 537         static function datetimePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 538                 ## Date and time #####################################
 539                 $dateOptions = self::getDateOptions( $context );
 540                 if ( $dateOptions ) {
 541                         $defaultPreferences['date'] = array(
 542                                 'type' => 'radio',
 543                                 'options' => $dateOptions,
 544                                 'label' => '&#160;',
 545                                 'section' => 'datetime/dateformat',
 546                         );
 547                 }
 548
 549                 // Info
 550                 $now = wfTimestampNow();
 551                 $lang = $context->getLanguage();
 552                 $nowlocal = Xml::element( 'span', array( 'id' => 'wpLocalTime' ),
 553                         $lang->time( $now, true ) );
 554                 $nowserver = $lang->time( $now, false ) .
 555                         Html::hidden( 'wpServerTime', (int)substr( $now, 8, 2 ) * 60 + (int)substr( $now, 10, 2 ) );
 556
 557                 $defaultPreferences['nowserver'] = array(
 558                         'type' => 'info',
 559                         'raw' => 1,
 560                         'label-message' => 'servertime',
 561                         'default' => $nowserver,
 562                         'section' => 'datetime/timeoffset',
 563                 );
 564
 565                 $defaultPreferences['nowlocal'] = array(
 566                         'type' => 'info',
 567                         'raw' => 1,
 568                         'label-message' => 'localtime',
 569                         'default' => $nowlocal,
 570                         'section' => 'datetime/timeoffset',
 571                 );
 572
 573                 // Grab existing pref.
 574                 $tzOffset = $user->getOption( 'timecorrection' );
 575                 $tz = explode( '|', $tzOffset, 3 );
 576
 577                 $tzOptions = self::getTimezoneOptions( $context );
 578
 579                 $tzSetting = $tzOffset;
 580                 if ( count( $tz ) > 1 && $tz[0] == 'Offset' ) {
 581                         $minDiff = $tz[1];
 582                         $tzSetting = sprintf( '%+03d:%02d', floor( $minDiff / 60 ), abs( $minDiff ) % 60 );
 583                 } elseif ( count( $tz ) > 1 && $tz[0] == 'ZoneInfo' &&
 584                         !in_array( $tzOffset, HTMLFormField::flattenOptions( $tzOptions ) ) )
 585                 {
 586                         # Timezone offset can vary with DST
 587                         $userTZ = timezone_open( $tz[2] );
 588                         if ( $userTZ !== false ) {
 589                                 $minDiff = floor( timezone_offset_get( $userTZ, date_create( 'now' ) ) / 60 );
 590                                 $tzSetting = "ZoneInfo|$minDiff|{$tz[2]}";
 591                         }
 592                 }
 593
 594                 $defaultPreferences['timecorrection'] = array(
 595                         'class' => 'HTMLSelectOrOtherField',
 596                         'label-message' => 'timezonelegend',
 597                         'options' => $tzOptions,
 598                         'default' => $tzSetting,
 599                         'size' => 20,
 600                         'section' => 'datetime/timeoffset',
 601                 );
 602         }
 603
 604         /**
 605          * @param $user User
 606          * @param $context IContextSource
 607          * @param $defaultPreferences Array
 608          */
 609         static function renderingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 610                 ## Page Rendering ##############################
 611                 global $wgAllowUserCssPrefs;
 612                 if ( $wgAllowUserCssPrefs ) {
 613                         $defaultPreferences['underline'] = array(
 614                                 'type' => 'select',
 615                                 'options' => array(
 616                                         $context->msg( 'underline-never' )->text() => 0,
 617                                         $context->msg( 'underline-always' )->text() => 1,
 618                                         $context->msg( 'underline-default' )->text() => 2,
 619                                 ),
 620                                 'label-message' => 'tog-underline',
 621                                 'section' => 'rendering/advancedrendering',
 622                         );
 623                 }
 624
 625                 $stubThresholdValues = array( 50, 100, 500, 1000, 2000, 5000, 10000 );
 626                 $stubThresholdOptions = array( $context->msg( 'stub-threshold-disabled' )->text() => 0 );
 627                 foreach ( $stubThresholdValues as $value ) {
 628                         $stubThresholdOptions[$context->msg( 'size-bytes', $value )->text()] = $value;
 629                 }
 630
 631                 $defaultPreferences['stubthreshold'] = array(
 632                         'type' => 'selectorother',
 633                         'section' => 'rendering/advancedrendering',
 634                         'options' => $stubThresholdOptions,
 635                         'size' => 20,
 636                         'label' => $context->msg( 'stub-threshold' )->text(), // Raw HTML message. Yay?
 637                 );
 638
 639                 if ( $wgAllowUserCssPrefs ) {
 640                         $defaultPreferences['highlightbroken'] = array(
 641                                 'type' => 'toggle',
 642                                 'section' => 'rendering/advancedrendering',
 643                                 'label' => $context->msg( 'tog-highlightbroken' )->text(), // Raw HTML
 644                         );
 645                         $defaultPreferences['showtoc'] = array(
 646                                 'type' => 'toggle',
 647                                 'section' => 'rendering/advancedrendering',
 648                                 'label-message' => 'tog-showtoc',
 649                         );
 650                 }
 651                 $defaultPreferences['nocache'] = array(
 652                         'type' => 'toggle',
 653                         'label-message' => 'tog-nocache',
 654                         'section' => 'rendering/advancedrendering',
 655                 );
 656                 $defaultPreferences['showhiddencats'] = array(
 657                         'type' => 'toggle',
 658                         'section' => 'rendering/advancedrendering',
 659                         'label-message' => 'tog-showhiddencats'
 660                 );
 661                 $defaultPreferences['showjumplinks'] = array(
 662                         'type' => 'toggle',
 663                         'section' => 'rendering/advancedrendering',
 664                         'label-message' => 'tog-showjumplinks',
 665                 );
 666
 667                 if ( $wgAllowUserCssPrefs ) {
 668                         $defaultPreferences['justify'] = array(
 669                                 'type' => 'toggle',
 670                                 'section' => 'rendering/advancedrendering',
 671                                 'label-message' => 'tog-justify',
 672                         );
 673                 }
 674
 675                 $defaultPreferences['numberheadings'] = array(
 676                         'type' => 'toggle',
 677                         'section' => 'rendering/advancedrendering',
 678                         'label-message' => 'tog-numberheadings',
 679                 );
 680         }
 681
 682         /**
 683          * @param $user User
 684          * @param $context IContextSource
 685          * @param $defaultPreferences Array
 686          */
 687         static function editingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 688                 global $wgUseExternalEditor, $wgAllowUserCssPrefs;
 689
 690                 ## Editing #####################################
 691
 692                 $defaultPreferences['rows'] = array(
 693                         'type' => 'int',
 694                         'label-message' => 'rows',
 695                         'section' => 'editing/textboxsize',
 696                         'min' => 4,
 697                         'max' => 1000,
 698                 );
 699
 700                 if ( $wgAllowUserCssPrefs ) {
 701                         $defaultPreferences['editfont'] = array(
 702                                 'type' => 'select',
 703                                 'section' => 'editing/advancedediting',
 704                                 'label-message' => 'editfont-style',
 705                                 'options' => array(
 706                                         $context->msg( 'editfont-default' )->text() => 'default',
 707                                         $context->msg( 'editfont-monospace' )->text() => 'monospace',
 708                                         $context->msg( 'editfont-sansserif' )->text() => 'sans-serif',
 709                                         $context->msg( 'editfont-serif' )->text() => 'serif',
 710                                 )
 711                         );
 712                 }
 713                 $defaultPreferences['previewontop'] = array(
 714                         'type' => 'toggle',
 715                         'section' => 'editing/advancedediting',
 716                         'label-message' => 'tog-previewontop',
 717                 );
 718                 $defaultPreferences['previewonfirst'] = array(
 719                         'type' => 'toggle',
 720                         'section' => 'editing/advancedediting',
 721                         'label-message' => 'tog-previewonfirst',
 722                 );
 723
 724                 if ( $wgAllowUserCssPrefs ) {
 725                         $defaultPreferences['editsection'] = array(
 726                                 'type' => 'toggle',
 727                                 'section' => 'editing/advancedediting',
 728                                 'label-message' => 'tog-editsection',
 729                         );
 730                 }
 731                 $defaultPreferences['editsectiononrightclick'] = array(
 732                         'type' => 'toggle',
 733                         'section' => 'editing/advancedediting',
 734                         'label-message' => 'tog-editsectiononrightclick',
 735                 );
 736                 $defaultPreferences['editondblclick'] = array(
 737                         'type' => 'toggle',
 738                         'section' => 'editing/advancedediting',
 739                         'label-message' => 'tog-editondblclick',
 740                 );
 741                 $defaultPreferences['showtoolbar'] = array(
 742                         'type' => 'toggle',
 743                         'section' => 'editing/advancedediting',
 744                         'label-message' => 'tog-showtoolbar',
 745                 );
 746
 747                 if ( $user->isAllowed( 'minoredit' ) ) {
 748                         $defaultPreferences['minordefault'] = array(
 749                                 'type' => 'toggle',
 750                                 'section' => 'editing/advancedediting',
 751                                 'label-message' => 'tog-minordefault',
 752                         );
 753                 }
 754
 755                 if ( $wgUseExternalEditor ) {
 756                         $defaultPreferences['externaleditor'] = array(
 757                                 'type' => 'toggle',
 758                                 'section' => 'editing/advancedediting',
 759                                 'label-message' => 'tog-externaleditor',
 760                         );
 761                         $defaultPreferences['externaldiff'] = array(
 762                                 'type' => 'toggle',
 763                                 'section' => 'editing/advancedediting',
 764                                 'label-message' => 'tog-externaldiff',
 765                         );
 766                 }
 767
 768                 $defaultPreferences['forceeditsummary'] = array(
 769                         'type' => 'toggle',
 770                         'section' => 'editing/advancedediting',
 771                         'label-message' => 'tog-forceeditsummary',
 772                 );
 773
 774
 775                 $defaultPreferences['uselivepreview'] = array(
 776                         'type' => 'toggle',
 777                         'section' => 'editing/advancedediting',
 778                         'label-message' => 'tog-uselivepreview',
 779                 );
 780         }
 781
 782         /**
 783          * @param $user User
 784          * @param $context IContextSource
 785          * @param $defaultPreferences Array
 786          */
 787         static function rcPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 788                 global $wgRCMaxAge, $wgRCShowWatchingUsers;
 789
 790                 ## RecentChanges #####################################
 791                 $defaultPreferences['rcdays'] = array(
 792                         'type' => 'float',
 793                         'label-message' => 'recentchangesdays',
 794                         'section' => 'rc/displayrc',
 795                         'min' => 1,
 796                         'max' => ceil( $wgRCMaxAge / ( 3600 * 24 ) ),
 797                         'help' => $context->msg( 'recentchangesdays-max' )->numParams(
 798                                 ceil( $wgRCMaxAge / ( 3600 * 24 ) ) )->text()
 799                 );
 800                 $defaultPreferences['rclimit'] = array(
 801                         'type' => 'int',
 802                         'label-message' => 'recentchangescount',
 803                         'help-message' => 'prefs-help-recentchangescount',
 804                         'section' => 'rc/displayrc',
 805                 );
 806                 $defaultPreferences['usenewrc'] = array(
 807                         'type' => 'toggle',
 808                         'label-message' => 'tog-usenewrc',
 809                         'section' => 'rc/advancedrc',
 810                 );
 811                 $defaultPreferences['hideminor'] = array(
 812                         'type' => 'toggle',
 813                         'label-message' => 'tog-hideminor',
 814                         'section' => 'rc/advancedrc',
 815                 );
 816
 817                 if ( $user->useRCPatrol() ) {
 818                         $defaultPreferences['hidepatrolled'] = array(
 819                                 'type' => 'toggle',
 820                                 'section' => 'rc/advancedrc',
 821                                 'label-message' => 'tog-hidepatrolled',
 822                         );
 823                         $defaultPreferences['newpageshidepatrolled'] = array(
 824                                 'type' => 'toggle',
 825                                 'section' => 'rc/advancedrc',
 826                                 'label-message' => 'tog-newpageshidepatrolled',
 827                         );
 828                 }
 829
 830                 if ( $wgRCShowWatchingUsers ) {
 831                         $defaultPreferences['shownumberswatching'] = array(
 832                                 'type' => 'toggle',
 833                                 'section' => 'rc/advancedrc',
 834                                 'label-message' => 'tog-shownumberswatching',
 835                         );
 836                 }
 837         }
 838
 839         /**
 840          * @param $user User
 841          * @param $context IContextSource
 842          * @param $defaultPreferences
 843          */
 844         static function watchlistPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 845                 global $wgUseRCPatrol, $wgEnableAPI, $wgRCMaxAge;
 846
 847                 $watchlistdaysMax = ceil( $wgRCMaxAge / ( 3600 * 24 ) );
 848
 849                 ## Watchlist #####################################
 850                 $defaultPreferences['watchlistdays'] = array(
 851                         'type' => 'float',
 852                         'min' => 0,
 853                         'max' => $watchlistdaysMax,
 854                         'section' => 'watchlist/displaywatchlist',
 855                         'help' => $context->msg( 'prefs-watchlist-days-max' )->numParams(
 856                                                  $watchlistdaysMax )->text(),
 857                         'label-message' => 'prefs-watchlist-days',
 858                 );
 859                 $defaultPreferences['wllimit'] = array(
 860                         'type' => 'int',
 861                         'min' => 0,
 862                         'max' => 1000,
 863                         'label-message' => 'prefs-watchlist-edits',
 864                         'help' => $context->msg( 'prefs-watchlist-edits-max' )->escaped(),
 865                         'section' => 'watchlist/displaywatchlist',
 866                 );
 867                 $defaultPreferences['extendwatchlist'] = array(
 868                         'type' => 'toggle',
 869                         'section' => 'watchlist/advancedwatchlist',
 870                         'label-message' => 'tog-extendwatchlist',
 871                 );
 872                 $defaultPreferences['watchlisthideminor'] = array(
 873                         'type' => 'toggle',
 874                         'section' => 'watchlist/advancedwatchlist',
 875                         'label-message' => 'tog-watchlisthideminor',
 876                 );
 877                 $defaultPreferences['watchlisthidebots'] = array(
 878                         'type' => 'toggle',
 879                         'section' => 'watchlist/advancedwatchlist',
 880                         'label-message' => 'tog-watchlisthidebots',
 881                 );
 882                 $defaultPreferences['watchlisthideown'] = array(
 883                         'type' => 'toggle',
 884                         'section' => 'watchlist/advancedwatchlist',
 885                         'label-message' => 'tog-watchlisthideown',
 886                 );
 887                 $defaultPreferences['watchlisthideanons'] = array(
 888                         'type' => 'toggle',
 889                         'section' => 'watchlist/advancedwatchlist',
 890                         'label-message' => 'tog-watchlisthideanons',
 891                 );
 892                 $defaultPreferences['watchlisthideliu'] = array(
 893                         'type' => 'toggle',
 894                         'section' => 'watchlist/advancedwatchlist',
 895                         'label-message' => 'tog-watchlisthideliu',
 896                 );
 897
 898                 if ( $wgUseRCPatrol ) {
 899                         $defaultPreferences['watchlisthidepatrolled'] = array(
 900                                 'type' => 'toggle',
 901                                 'section' => 'watchlist/advancedwatchlist',
 902                                 'label-message' => 'tog-watchlisthidepatrolled',
 903                         );
 904                 }
 905
 906                 if ( $wgEnableAPI ) {
 907                         # Some random gibberish as a proposed default
 908                         $hash = sha1( mt_rand() . microtime( true ) );
 909
 910                         $defaultPreferences['watchlisttoken'] = array(
 911                                 'type' => 'text',
 912                                 'section' => 'watchlist/advancedwatchlist',
 913                                 'label-message' => 'prefs-watchlist-token',
 914                                 'help' => $context->msg( 'prefs-help-watchlist-token', $hash )->escaped()
 915                         );
 916                 }
 917
 918                 $watchTypes = array(
 919                         'edit' => 'watchdefault',
 920                         'move' => 'watchmoves',
 921                         'delete' => 'watchdeletion'
 922                 );
 923
 924                 // Kinda hacky
 925                 if ( $user->isAllowed( 'createpage' ) || $user->isAllowed( 'createtalk' ) ) {
 926                         $watchTypes['read'] = 'watchcreations';
 927                 }
 928
 929                 foreach ( $watchTypes as $action => $pref ) {
 930                         if ( $user->isAllowed( $action ) ) {
 931                                 $defaultPreferences[$pref] = array(
 932                                         'type' => 'toggle',
 933                                         'section' => 'watchlist/advancedwatchlist',
 934                                         'label-message' => "tog-$pref",
 935                                 );
 936                         }
 937                 }
 938         }
 939
 940         /**
 941          * @param $user User
 942          * @param $context IContextSource
 943          * @param $defaultPreferences Array
 944          */
 945         static function searchPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 946                 global $wgContLang, $wgEnableMWSuggest, $wgVectorUseSimpleSearch;
 947
 948                 ## Search #####################################
 949                 $defaultPreferences['searchlimit'] = array(
 950                         'type' => 'int',
 951                         'label-message' => 'resultsperpage',
 952                         'section' => 'searchoptions/displaysearchoptions',
 953                         'min' => 0,
 954                 );
 955
 956                 if ( $wgEnableMWSuggest ) {
 957                         $defaultPreferences['disablesuggest'] = array(
 958                                 'type' => 'toggle',
 959                                 'label-message' => 'mwsuggest-disable',
 960                                 'section' => 'searchoptions/displaysearchoptions',
 961                         );
 962                 }
 963
 964                 if ( $wgVectorUseSimpleSearch ) {
 965                         $defaultPreferences['vector-simplesearch'] = array(
 966                                 'type' => 'toggle',
 967                                 'label-message' => 'vector-simplesearch-preference',
 968                                 'section' => 'searchoptions/displaysearchoptions'
 969                         );
 970                 }
 971
 972                 $defaultPreferences['searcheverything'] = array(
 973                         'type' => 'toggle',
 974                         'label-message' => 'searcheverything-enable',
 975                         'section' => 'searchoptions/advancedsearchoptions',
 976                 );
 977
 978                 $nsOptions = array();
 979
 980                 foreach ( $wgContLang->getNamespaces() as $ns => $name ) {
 981                         if ( $ns < 0 ) {
 982                                 continue;
 983                         }
 984
 985                         $displayNs = str_replace( '_', ' ', $name );
 986
 987                         if ( !$displayNs ) {
 988                                 $displayNs = $context->msg( 'blanknamespace' )->text();
 989                         }
 990
 991                         $displayNs = htmlspecialchars( $displayNs );
 992                         $nsOptions[$displayNs] = $ns;
 993                 }
 994
 995                 $defaultPreferences['searchnamespaces'] = array(
 996                         'type' => 'multiselect',
 997                         'label-message' => 'defaultns',
 998                         'options' => $nsOptions,
 999                         'section' => 'searchoptions/advancedsearchoptions',
1000                         'prefix' => 'searchNs',
1001                 );
1002         }
1003
1004         /**
1005          * @param $user User
1006          * @param $context IContextSource
1007          * @param $defaultPreferences Array
1008          */
1009         static function miscPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1010                 global $wgContLang;
1011
1012                 ## Misc #####################################
1013                 $defaultPreferences['diffonly'] = array(
1014                         'type' => 'toggle',
1015                         'section' => 'misc/diffs',
1016                         'label-message' => 'tog-diffonly',
1017                 );
1018                 $defaultPreferences['norollbackdiff'] = array(
1019                         'type' => 'toggle',
1020                         'section' => 'misc/diffs',
1021                         'label-message' => 'tog-norollbackdiff',
1022                 );
1023
1024                 // Stuff from Language::getExtraUserToggles()
1025                 $toggles = $wgContLang->getExtraUserToggles();
1026
1027                 foreach ( $toggles as $toggle ) {
1028                         $defaultPreferences[$toggle] = array(
1029                                 'type' => 'toggle',
1030                                 'section' => 'personal/i18n',
1031                                 'label-message' => "tog-$toggle",
1032                         );
1033                 }
1034         }
1035
1036         /**
1037          * @param $user User The User object
1038          * @param $context IContextSource
1039          * @return Array: text/links to display as key; $skinkey as value
1040          */
1041         static function generateSkinOptions( $user, IContextSource $context ) {
1042                 global $wgDefaultSkin, $wgAllowUserCss, $wgAllowUserJs;
1043                 $ret = array();
1044
1045                 $mptitle = Title::newMainPage();
1046                 $previewtext = $context->msg( 'skin-preview' )->text();
1047
1048                 # Only show members of Skin::getSkinNames() rather than
1049                 # $skinNames (skins is all skin names from Language.php)
1050                 $validSkinNames = Skin::getUsableSkins();
1051
1052                 # Sort by UI skin name. First though need to update validSkinNames as sometimes
1053                 # the skinkey & UI skinname differ (e.g. "standard" skinkey is "Classic" in the UI).
1054                 foreach ( $validSkinNames as $skinkey => &$skinname ) {
1055                         $msg = $context->msg( "skinname-{$skinkey}" );
1056                         if ( $msg->exists() ) {
1057                                 $skinname = htmlspecialchars( $msg->text() );
1058                         }
1059                 }
1060                 asort( $validSkinNames );
1061
1062                 foreach ( $validSkinNames as $skinkey => $sn ) {
1063                         $linkTools = array();
1064
1065                         # Mark the default skin
1066                         if ( $skinkey == $wgDefaultSkin ) {
1067                                 $linkTools[] = $context->msg( 'default' )->escaped();
1068                         }
1069
1070                         # Create preview link
1071                         $mplink = htmlspecialchars( $mptitle->getLocalURL( "useskin=$skinkey" ) );
1072                         $linkTools[] = "<a target='_blank' href=\"$mplink\">$previewtext</a>";
1073
1074                         # Create links to user CSS/JS pages
1075                         if ( $wgAllowUserCss ) {
1076                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.css' );
1077                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
1078                         }
1079
1080                         if ( $wgAllowUserJs ) {
1081                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.js' );
1082                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
1083                         }
1084
1085                         $display = $sn . ' ' . $context->msg( 'parentheses', $context->getLanguage()->pipeList( $linkTools ) )->text();
1086                         $ret[$display] = $skinkey;
1087                 }
1088
1089                 return $ret;
1090         }
1091
1092         /**
1093          * @param $context IContextSource
1094          * @return array
1095          */
1096         static function getDateOptions( IContextSource $context ) {
1097                 $lang = $context->getLanguage();
1098                 $dateopts = $lang->getDatePreferences();
1099
1100                 $ret = array();
1101
1102                 if ( $dateopts ) {
1103                         if ( !in_array( 'default', $dateopts ) ) {
1104                                 $dateopts[] = 'default'; // Make sure default is always valid
1105                                                                                 // Bug 19237
1106                         }
1107
1108                         // KLUGE: site default might not be valid for user language
1109                         global $wgDefaultUserOptions;
1110                         if ( !in_array( $wgDefaultUserOptions['date'], $dateopts ) ) {
1111                                 $wgDefaultUserOptions['date'] = 'default';
1112                         }
1113
1114                         $epoch = wfTimestampNow();
1115                         foreach ( $dateopts as $key ) {
1116                                 if ( $key == 'default' ) {
1117                                         $formatted = $context->msg( 'datedefault' )->escaped();
1118                                 } else {
1119                                         $formatted = htmlspecialchars( $lang->timeanddate( $epoch, false, $key ) );
1120                                 }
1121                                 $ret[$formatted] = $key;
1122                         }
1123                 }
1124                 return $ret;
1125         }
1126
1127         /**
1128          * @param $context IContextSource
1129          * @return array
1130          */
1131         static function getImageSizes( IContextSource $context ) {
1132                 global $wgImageLimits;
1133
1134                 $ret = array();
1135                 $pixels = $context->msg( 'unit-pixel' )->text();
1136
1137                 foreach ( $wgImageLimits as $index => $limits ) {
1138                         $display = "{$limits[0]}×{$limits[1]}" . $pixels;
1139                         $ret[$display] = $index;
1140                 }
1141
1142                 return $ret;
1143         }
1144
1145         /**
1146          * @param $context IContextSource
1147          * @return array
1148          */
1149         static function getThumbSizes( IContextSource $context ) {
1150                 global $wgThumbLimits;
1151
1152                 $ret = array();
1153                 $pixels = $context->msg( 'unit-pixel' )->text();
1154
1155                 foreach ( $wgThumbLimits as $index => $size ) {
1156                         $display = $size . $pixels;
1157                         $ret[$display] = $index;
1158                 }
1159
1160                 return $ret;
1161         }
1162
1163         /**
1164          * @param $signature string
1165          * @param $alldata array
1166          * @param $form HTMLForm
1167          * @return bool|string
1168          */
1169         static function validateSignature( $signature, $alldata, $form ) {
1170                 global $wgParser, $wgMaxSigChars;
1171                 if ( mb_strlen( $signature ) > $wgMaxSigChars ) {
1172                         return Xml::element( 'span', array( 'class' => 'error' ),
1173                                 $form->msg( 'badsiglength' )->numParams( $wgMaxSigChars )->text() );
1174                 } elseif ( isset( $alldata['fancysig'] ) &&
1175                                 $alldata['fancysig'] &&
1176                                 false === $wgParser->validateSig( $signature ) ) {
1177                         return Xml::element( 'span', array( 'class' => 'error' ), $form->msg( 'badsig' )->text() );
1178                 } else {
1179                         return true;
1180                 }
1181         }
1182
1183         /**
1184          * @param $signature string
1185          * @param $alldata array
1186          * @param $form HTMLForm
1187          * @return string
1188          */
1189         static function cleanSignature( $signature, $alldata, $form ) {
1190                 if ( isset( $alldata['fancysig'] ) && $alldata['fancysig'] ) {
1191                         global $wgParser;
1192                         $signature = $wgParser->cleanSig( $signature );
1193                 } else {
1194                         // When no fancy sig used, make sure ~{3,5} get removed.
1195                         $signature = Parser::cleanSigInSig( $signature );
1196                 }
1197
1198                 return $signature;
1199         }
1200
1201         /**
1202          * @param $user User
1203          * @param $context IContextSource
1204          * @param $formClass string
1205          * @param $remove Array: array of items to remove
1206          * @return HtmlForm
1207          */
1208         static function getFormObject( $user, IContextSource $context, $formClass = 'PreferencesForm', array $remove = array() ) {
1209                 $formDescriptor = Preferences::getPreferences( $user, $context );
1210                 if ( count( $remove ) ) {
1211                         $removeKeys = array_flip( $remove );
1212                         $formDescriptor = array_diff_key( $formDescriptor, $removeKeys );
1213                 }
1214                 $htmlForm = new $formClass( $formDescriptor, $context, 'prefs' );
1215
1216                 $htmlForm->setModifiedUser( $user );
1217                 $htmlForm->setId( 'mw-prefs-form' );
1218                 $htmlForm->setSubmitText( $context->msg( 'saveprefs' )->text() );
1219                 # Used message keys: 'accesskey-preferences-save', 'tooltip-preferences-save'
1220                 $htmlForm->setSubmitTooltip( 'preferences-save' );
1221                 $htmlForm->setSubmitID( 'prefsubmit' );
1222                 $htmlForm->setSubmitCallback( array( 'Preferences', 'tryFormSubmit' ) );
1223
1224                 return $htmlForm;
1225         }
1226
1227         /**
1228          * @return array
1229          */
1230         static function getTimezoneOptions( IContextSource $context ) {
1231                 $opt = array();
1232
1233                 global $wgLocalTZoffset, $wgLocaltimezone;
1234                 // Check that $wgLocalTZoffset is the same as $wgLocaltimezone
1235                 if ( $wgLocalTZoffset == date( 'Z' ) / 60 ) {
1236                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $wgLocaltimezone )->text();
1237                 } else {
1238                         $tzstring = sprintf( '%+03d:%02d', floor( $wgLocalTZoffset / 60 ), abs( $wgLocalTZoffset ) % 60 );
1239                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $tzstring )->text();
1240                 }
1241                 $opt[$server_tz_msg] = "System|$wgLocalTZoffset";
1242                 $opt[$context->msg( 'timezoneuseoffset' )->text()] = 'other';
1243                 $opt[$context->msg( 'guesstimezone' )->text()] = 'guess';
1244
1245                 if ( function_exists( 'timezone_identifiers_list' ) ) {
1246                         # Read timezone list
1247                         $tzs = timezone_identifiers_list();
1248                         sort( $tzs );
1249
1250                         $tzRegions = array();
1251                         $tzRegions['Africa'] = $context->msg( 'timezoneregion-africa' )->text();
1252                         $tzRegions['America'] = $context->msg( 'timezoneregion-america' )->text();
1253                         $tzRegions['Antarctica'] = $context->msg( 'timezoneregion-antarctica' )->text();
1254                         $tzRegions['Arctic'] = $context->msg( 'timezoneregion-arctic' )->text();
1255                         $tzRegions['Asia'] = $context->msg( 'timezoneregion-asia' )->text();
1256                         $tzRegions['Atlantic'] = $context->msg( 'timezoneregion-atlantic' )->text();
1257                         $tzRegions['Australia'] = $context->msg( 'timezoneregion-australia' )->text();
1258                         $tzRegions['Europe'] = $context->msg( 'timezoneregion-europe' )->text();
1259                         $tzRegions['Indian'] = $context->msg( 'timezoneregion-indian' )->text();
1260                         $tzRegions['Pacific'] = $context->msg( 'timezoneregion-pacific' )->text();
1261                         asort( $tzRegions );
1262
1263                         $prefill = array_fill_keys( array_values( $tzRegions ), array() );
1264                         $opt = array_merge( $opt, $prefill );
1265
1266                         $now = date_create( 'now' );
1267
1268                         foreach ( $tzs as $tz ) {
1269                                 $z = explode( '/', $tz, 2 );
1270
1271                                 # timezone_identifiers_list() returns a number of
1272                                 # backwards-compatibility entries. This filters them out of the
1273                                 # list presented to the user.
1274                                 if ( count( $z ) != 2 || !array_key_exists( $z[0], $tzRegions ) ) {
1275                                         continue;
1276                                 }
1277
1278                                 # Localize region
1279                                 $z[0] = $tzRegions[$z[0]];
1280
1281                                 $minDiff = floor( timezone_offset_get( timezone_open( $tz ), $now ) / 60 );
1282
1283                                 $display = str_replace( '_', ' ', $z[0] . '/' . $z[1] );
1284                                 $value = "ZoneInfo|$minDiff|$tz";
1285
1286                                 $opt[$z[0]][$display] = $value;
1287                         }
1288                 }
1289                 return $opt;
1290         }
1291
1292         /**
1293          * @param $value
1294          * @param $alldata
1295          * @return int
1296          */
1297         static function filterIntval( $value, $alldata ){
1298                 return intval( $value );
1299         }
1300
1301         /**
1302          * @param $tz
1303          * @param $alldata
1304          * @return string
1305          */
1306         static function filterTimezoneInput( $tz, $alldata ) {
1307                 $data = explode( '|', $tz, 3 );
1308                 switch ( $data[0] ) {
1309                         case 'ZoneInfo':
1310                         case 'System':
1311                                 return $tz;
1312                         default:
1313                                 $data = explode( ':', $tz, 2 );
1314                                 if ( count( $data ) == 2 ) {
1315                                         $data[0] = intval( $data[0] );
1316                                         $data[1] = intval( $data[1] );
1317                                         $minDiff = abs( $data[0] ) * 60 + $data[1];
1318                                         if ( $data[0] < 0 ) $minDiff = - $minDiff;
1319                                 } else {
1320                                         $minDiff = intval( $data[0] ) * 60;
1321                                 }
1322
1323                                 # Max is +14:00 and min is -12:00, see:
1324                                 # http://en.wikipedia.org/wiki/Timezone
1325                                 $minDiff = min( $minDiff, 840 );  # 14:00
1326                                 $minDiff = max( $minDiff, - 720 ); # -12:00
1327                                 return 'Offset|' . $minDiff;
1328                 }
1329         }
1330
1331         /**
1332          * @param $formData
1333          * @param $form HTMLForm
1334          * @param $entryPoint string
1335          * @return bool|Status|string
1336          */
1337         static function tryFormSubmit( $formData, $form, $entryPoint = 'internal' ) {
1338                 global $wgHiddenPrefs;
1339
1340                 $user = $form->getModifiedUser();
1341                 $result = true;
1342
1343                 // Filter input
1344                 foreach ( array_keys( $formData ) as $name ) {
1345                         if ( isset( self::$saveFilters[$name] ) ) {
1346                                 $formData[$name] =
1347                                         call_user_func( self::$saveFilters[$name], $formData[$name], $formData );
1348                         }
1349                 }
1350
1351                 // Stuff that shouldn't be saved as a preference.
1352                 $saveBlacklist = array(
1353                         'realname',
1354                         'emailaddress',
1355                 );
1356
1357                 // Fortunately, the realname field is MUCH simpler
1358                 if ( !in_array( 'realname', $wgHiddenPrefs ) ) {
1359                         $realName = $formData['realname'];
1360                         $user->setRealName( $realName );
1361                 }
1362
1363                 foreach ( $saveBlacklist as $b ) {
1364                         unset( $formData[$b] );
1365                 }
1366
1367                 # If users have saved a value for a preference which has subsequently been disabled
1368                 # via $wgHiddenPrefs, we don't want to destroy that setting in case the preference
1369                 # is subsequently re-enabled
1370                 # TODO: maintenance script to actually delete these
1371                 foreach( $wgHiddenPrefs as $pref ){
1372                         # If the user has not set a non-default value here, the default will be returned
1373                         # and subsequently discarded
1374                         $formData[$pref] = $user->getOption( $pref, null, true );
1375                 }
1376
1377                 //  Keeps old preferences from interfering due to back-compat
1378                 //  code, etc.
1379                 $user->resetOptions();
1380
1381                 foreach ( $formData as $key => $value ) {
1382                         $user->setOption( $key, $value );
1383                 }
1384
1385                 $user->saveSettings();
1386
1387                 return $result;
1388         }
1389
1390         /**
1391          * @param $formData
1392          * @return Status
1393          */
1394         public static function tryUISubmit( $formData, $form ) {
1395                 $res = self::tryFormSubmit( $formData, $form, 'ui' );
1396
1397                 if ( $res ) {
1398                         $urlOptions = array( 'success' => 1 );
1399
1400                         if ( $res === 'eauth' ) {
1401                                 $urlOptions['eauth'] = 1;
1402                         }
1403
1404                         $urlOptions += $form->getExtraSuccessRedirectParameters();
1405
1406                         $url = $form->getTitle()->getFullURL( $urlOptions );
1407
1408                         $form->getContext()->getOutput()->redirect( $url );
1409                 }
1410
1411                 return Status::newGood();
1412         }
1413
1414         /**
1415          * Try to set a user's email address.
1416          * This does *not* try to validate the address.
1417          * Caller is responsible for checking $wgAuth.
1418          * @param $user User
1419          * @param $newaddr string New email address
1420          * @return Array (true on success or Status on failure, info string)
1421          */
1422         public static function trySetUserEmail( User $user, $newaddr ) {
1423                 global $wgEnableEmail, $wgEmailAuthentication;
1424                 $info = ''; // none
1425
1426                 if ( $wgEnableEmail ) {
1427                         $oldaddr = $user->getEmail();
1428                         if ( ( $newaddr != '' ) && ( $newaddr != $oldaddr ) ) {
1429                                 # The user has supplied a new email address on the login page
1430                                 # new behaviour: set this new emailaddr from login-page into user database record
1431                                 $user->setEmail( $newaddr );
1432                                 if ( $wgEmailAuthentication ) {
1433                                         # Mail a temporary password to the dirty address.
1434                                         # User can come back through the confirmation URL to re-enable email.
1435                                         $type = $oldaddr != '' ? 'changed' : 'set';
1436                                         $result = $user->sendConfirmationMail( $type );
1437                                         if ( !$result->isGood() ) {
1438                                                 return array( $result, 'mailerror' );
1439                                         }
1440                                         $info = 'eauth';
1441                                 }
1442                         } elseif ( $newaddr != $oldaddr ) { // if the address is the same, don't change it
1443                                 $user->setEmail( $newaddr );
1444                         }
1445                         if ( $oldaddr != $newaddr ) {
1446                                 wfRunHooks( 'PrefsEmailAudit', array( $user, $oldaddr, $newaddr ) );
1447                         }
1448                 }
1449
1450                 return array( true, $info );
1451         }
1452
1453         /**
1454          * @param $user User
1455          * @return array
1456          */
1457         public static function loadOldSearchNs( $user ) {
1458                 $searchableNamespaces = SearchEngine::searchableNamespaces();
1459                 // Back compat with old format
1460                 $arr = array();
1461
1462                 foreach ( $searchableNamespaces as $ns => $name ) {
1463                         if ( $user->getOption( 'searchNs' . $ns ) ) {
1464                                 $arr[] = $ns;
1465                         }
1466                 }
1467
1468                 return $arr;
1469         }
1470 }
1471
1472 /** Some tweaks to allow js prefs to work */
1473 class PreferencesForm extends HTMLForm {
1474         // Override default value from HTMLForm
1475         protected $mSubSectionBeforeFields = false;
1476
1477         private $modifiedUser;
1478
1479         public function setModifiedUser( $user ) {
1480                 $this->modifiedUser = $user;
1481         }
1482
1483         public function getModifiedUser() {
1484                 if ( $this->modifiedUser === null ) {
1485                         return $this->getUser();
1486                 } else {
1487                         return $this->modifiedUser;
1488                 }
1489         }
1490
1491         /**
1492          * Get extra parameters for the query string when redirecting after
1493          * successful save.
1494          *
1495          * @return array()
1496          */
1497         public function getExtraSuccessRedirectParameters() {
1498                 return array();
1499         }
1500
1501         /**
1502          * @param $html string
1503          * @return String
1504          */
1505         function wrapForm( $html ) {
1506                 $html = Xml::tags( 'div', array( 'id' => 'preferences' ), $html );
1507
1508                 return parent::wrapForm( $html );
1509         }
1510
1511         /**
1512          * @return String
1513          */
1514         function getButtons() {
1515                 $html = parent::getButtons();
1516
1517                 $t = SpecialPage::getTitleFor( 'Preferences', 'reset' );
1518
1519                 $html .= "\n" . Linker::link( $t, $this->msg( 'restoreprefs' )->escaped() );
1520
1521                 $html = Xml::tags( 'div', array( 'class' => 'mw-prefs-buttons' ), $html );
1522
1523                 return $html;
1524         }
1525
1526         /**
1527          * @param $data array
1528          * @return array
1529          */
1530         function filterDataForSubmit( $data ) {
1531                 // Support for separating MultiSelect preferences into multiple preferences
1532                 // Due to lack of array support.
1533                 foreach ( $this->mFlatFields as $fieldname => $field ) {
1534                         $info = $field->mParams;
1535                         if ( $field instanceof HTMLMultiSelectField ) {
1536                                 $options = HTMLFormField::flattenOptions( $info['options'] );
1537                                 $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $fieldname;
1538
1539                                 foreach ( $options as $opt ) {
1540                                         $data["$prefix$opt"] = in_array( $opt, $data[$fieldname] );
1541                                 }
1542
1543                                 unset( $data[$fieldname] );
1544                         }
1545                 }
1546
1547                 return $data;
1548         }
1549         /**
1550          * Get the whole body of the form.
1551          */
1552         function getBody() {
1553                 return $this->displaySection( $this->mFieldTree, '', 'mw-prefsection-' );
1554         }
1555
1556         /**
1557          * Get the <legend> for a given section key. Normally this is the
1558          * prefs-$key message but we'll allow extensions to override it.
1559          */
1560         function getLegend( $key ) {
1561                 $legend = parent::getLegend( $key );
1562                 wfRunHooks( 'PreferencesGetLegend', array( $this, $key, &$legend ) );
1563                 return $legend;
1564         }
1565 }