includes/Preferences.php

   1 <?php
   2 /**
   3  * Form to edit user perferences.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 /**
  24  * We're now using the HTMLForm object with some customisation to generate the
  25  * Preferences form. This object handles generic submission, CSRF protection,
  26  * layout and other logic in a reusable manner. We subclass it as a PreferencesForm
  27  * to make some minor customisations.
  28  *
  29  * In order to generate the form, the HTMLForm object needs an array structure
  30  * detailing the form fields available, and that's what this class is for. Each
  31  * element of the array is a basic property-list, including the type of field,
  32  * the label it is to be given in the form, callbacks for validation and
  33  * 'filtering', and other pertinent information. Note that the 'default' field
  34  * is named for generic forms, and does not represent the preference's default
  35  * (which is stored in $wgDefaultUserOptions), but the default for the form
  36  * field, which should be whatever the user has set for that preference. There
  37  * is no need to override it unless you have some special storage logic (for
  38  * instance, those not presently stored as options, but which are best set from
  39  * the user preferences view).
  40  *
  41  * Field types are implemented as subclasses of the generic HTMLFormField
  42  * object, and typically implement at least getInputHTML, which generates the
  43  * HTML for the input field to be placed in the table.
  44  *
  45  * Once fields have been retrieved and validated, submission logic is handed
  46  * over to the tryUISubmit static method of this class.
  47  */
  48 class Preferences {
  49         static $defaultPreferences = null;
  50         static $saveFilters = array(
  51                         'timecorrection' => array( 'Preferences', 'filterTimezoneInput' ),
  52                         'cols' => array( 'Preferences', 'filterIntval' ),
  53                         'rows' => array( 'Preferences', 'filterIntval' ),
  54                         'rclimit' => array( 'Preferences', 'filterIntval' ),
  55                         'wllimit' => array( 'Preferences', 'filterIntval' ),
  56                         'searchlimit' => array( 'Preferences', 'filterIntval' ),
  57         );
  58
  59         /**
  60          * @throws MWException
  61          * @param $user User
  62          * @param $context IContextSource
  63          * @return array|null
  64          */
  65         static function getPreferences( $user, IContextSource $context ) {
  66                 if ( self::$defaultPreferences ) {
  67                         return self::$defaultPreferences;
  68                 }
  69
  70                 $defaultPreferences = array();
  71
  72                 self::profilePreferences( $user, $context, $defaultPreferences );
  73                 self::skinPreferences( $user, $context, $defaultPreferences );
  74                 self::filesPreferences( $user, $context, $defaultPreferences );
  75                 self::datetimePreferences( $user, $context, $defaultPreferences );
  76                 self::renderingPreferences( $user, $context, $defaultPreferences );
  77                 self::editingPreferences( $user, $context, $defaultPreferences );
  78                 self::rcPreferences( $user, $context, $defaultPreferences );
  79                 self::watchlistPreferences( $user, $context, $defaultPreferences );
  80                 self::searchPreferences( $user, $context, $defaultPreferences );
  81                 self::miscPreferences( $user, $context, $defaultPreferences );
  82
  83                 wfRunHooks( 'GetPreferences', array( $user, &$defaultPreferences ) );
  84
  85                 ## Remove preferences that wikis don't want to use
  86                 global $wgHiddenPrefs;
  87                 foreach ( $wgHiddenPrefs as $pref ) {
  88                         if ( isset( $defaultPreferences[$pref] ) ) {
  89                                 unset( $defaultPreferences[$pref] );
  90                         }
  91                 }
  92
  93                 ## Prod in defaults from the user
  94                 foreach ( $defaultPreferences as $name => &$info ) {
  95                         $prefFromUser = self::getOptionFromUser( $name, $info, $user );
  96                         $field = HTMLForm::loadInputFromParameters( $name, $info ); // For validation
  97                         $defaultOptions = User::getDefaultOptions();
  98                         $globalDefault = isset( $defaultOptions[$name] )
  99                                 ? $defaultOptions[$name]
 100                                 : null;
 101
 102                         // If it validates, set it as the default
 103                         if ( isset( $info['default'] ) ) {
 104                                 // Already set, no problem
 105                                 continue;
 106                         } elseif ( !is_null( $prefFromUser ) && // Make sure we're not just pulling nothing
 107                                         $field->validate( $prefFromUser, $user->getOptions() ) === true ) {
 108                                 $info['default'] = $prefFromUser;
 109                         } elseif ( $field->validate( $globalDefault, $user->getOptions() ) === true ) {
 110                                 $info['default'] = $globalDefault;
 111                         } else {
 112                                 throw new MWException( "Global default '$globalDefault' is invalid for field $name" );
 113                         }
 114                 }
 115
 116                 self::$defaultPreferences = $defaultPreferences;
 117
 118                 return $defaultPreferences;
 119         }
 120
 121         /**
 122          * Pull option from a user account. Handles stuff like array-type preferences.
 123          *
 124          * @param $name
 125          * @param $info
 126          * @param $user User
 127          * @return array|String
 128          */
 129         static function getOptionFromUser( $name, $info, $user ) {
 130                 $val = $user->getOption( $name );
 131
 132                 // Handling for array-type preferences
 133                 if ( ( isset( $info['type'] ) && $info['type'] == 'multiselect' ) ||
 134                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLMultiSelectField' ) ) {
 135                         $options = HTMLFormField::flattenOptions( $info['options'] );
 136                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 137                         $val = array();
 138
 139                         foreach ( $options as $value ) {
 140                                 if ( $user->getOption( "$prefix$value" ) ) {
 141                                         $val[] = $value;
 142                                 }
 143                         }
 144                 }
 145
 146                 return $val;
 147         }
 148
 149         /**
 150          * @param $user User
 151          * @param $context IContextSource
 152          * @param $defaultPreferences
 153          * @return void
 154          */
 155         static function profilePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 156                 global $wgAuth, $wgContLang, $wgParser, $wgCookieExpiration, $wgLanguageCode,
 157                         $wgDisableTitleConversion, $wgDisableLangConversion, $wgMaxSigChars,
 158                         $wgEnableEmail, $wgEmailConfirmToEdit, $wgEnableUserEmail, $wgEmailAuthentication,
 159                         $wgEnotifWatchlist, $wgEnotifUserTalk, $wgEnotifRevealEditorAddress;
 160
 161                 ## User info #####################################
 162                 // Information panel
 163                 $defaultPreferences['username'] = array(
 164                         'type' => 'info',
 165                         'label-message' => 'username',
 166                         'default' => $user->getName(),
 167                         'section' => 'personal/info',
 168                 );
 169
 170                 $defaultPreferences['userid'] = array(
 171                         'type' => 'info',
 172                         'label-message' => 'uid',
 173                         'default' => $user->getId(),
 174                         'section' => 'personal/info',
 175                 );
 176
 177                 # Get groups to which the user belongs
 178                 $userEffectiveGroups = $user->getEffectiveGroups();
 179                 $userGroups = $userMembers = array();
 180                 foreach ( $userEffectiveGroups as $ueg ) {
 181                         if ( $ueg == '*' ) {
 182                                 // Skip the default * group, seems useless here
 183                                 continue;
 184                         }
 185                         $groupName  = User::getGroupName( $ueg );
 186                         $userGroups[] = User::makeGroupLinkHTML( $ueg, $groupName );
 187
 188                         $memberName = User::getGroupMember( $ueg, $user->getName() );
 189                         $userMembers[] = User::makeGroupLinkHTML( $ueg, $memberName );
 190                 }
 191                 asort( $userGroups );
 192                 asort( $userMembers );
 193
 194                 $lang = $context->getLanguage();
 195
 196                 $defaultPreferences['usergroups'] = array(
 197                         'type' => 'info',
 198                         'label' => $context->msg( 'prefs-memberingroups' )->numParams(
 199                                 count( $userGroups ) )->parse(),
 200                         'default' => $context->msg( 'prefs-memberingroups-type',
 201                                 $lang->commaList( $userGroups ),
 202                                 $lang->commaList( $userMembers )
 203                         )->plain(),
 204                         'raw' => true,
 205                         'section' => 'personal/info',
 206                 );
 207
 208                 $defaultPreferences['editcount'] = array(
 209                         'type' => 'info',
 210                         'label-message' => 'prefs-edits',
 211                         'default' => $lang->formatNum( $user->getEditCount() ),
 212                         'section' => 'personal/info',
 213                 );
 214
 215                 if ( $user->getRegistration() ) {
 216                         $displayUser = $context->getUser();
 217                         $userRegistration = $user->getRegistration();
 218                         $defaultPreferences['registrationdate'] = array(
 219                                 'type' => 'info',
 220                                 'label-message' => 'prefs-registration',
 221                                 'default' => $context->msg(
 222                                         'prefs-registration-date-time',
 223                                         $lang->userTimeAndDate( $userRegistration, $displayUser ),
 224                                         $lang->userDate( $userRegistration, $displayUser ),
 225                                         $lang->userTime( $userRegistration, $displayUser )
 226                                 )->parse(),
 227                                 'section' => 'personal/info',
 228                         );
 229                 }
 230
 231                 // Actually changeable stuff
 232                 $defaultPreferences['realname'] = array(
 233                         'type' => $wgAuth->allowPropChange( 'realname' ) ? 'text' : 'info',
 234                         'default' => $user->getRealName(),
 235                         'section' => 'personal/info',
 236                         'label-message' => 'yourrealname',
 237                         'help-message' => 'prefs-help-realname',
 238                 );
 239
 240                 $defaultPreferences['gender'] = array(
 241                         'type' => 'select',
 242                         'section' => 'personal/info',
 243                         'options' => array(
 244                                 $context->msg( 'gender-male' )->text() => 'male',
 245                                 $context->msg( 'gender-female' )->text() => 'female',
 246                                 $context->msg( 'gender-unknown' )->text() => 'unknown',
 247                         ),
 248                         'label-message' => 'yourgender',
 249                         'help-message' => 'prefs-help-gender',
 250                 );
 251
 252                 if ( $wgAuth->allowPasswordChange() ) {
 253                         $link = Linker::link( SpecialPage::getTitleFor( 'ChangePassword' ),
 254                                 $context->msg( 'prefs-resetpass' )->escaped(), array(),
 255                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' ) ) );
 256
 257                         $defaultPreferences['password'] = array(
 258                                 'type' => 'info',
 259                                 'raw' => true,
 260                                 'default' => $link,
 261                                 'label-message' => 'yourpassword',
 262                                 'section' => 'personal/info',
 263                         );
 264                 }
 265                 if ( $wgCookieExpiration > 0 ) {
 266                         $defaultPreferences['rememberpassword'] = array(
 267                                 'type' => 'toggle',
 268                                 'label' => $context->msg( 'tog-rememberpassword' )->numParams(
 269                                         ceil( $wgCookieExpiration / ( 3600 * 24 ) ) )->text(),
 270                                 'section' => 'personal/info',
 271                         );
 272                 }
 273
 274                 // Language
 275                 $languages = Language::fetchLanguageNames( null, 'mw' );
 276                 if ( !array_key_exists( $wgLanguageCode, $languages ) ) {
 277                         $languages[$wgLanguageCode] = $wgLanguageCode;
 278                 }
 279                 ksort( $languages );
 280
 281                 $options = array();
 282                 foreach ( $languages as $code => $name ) {
 283                         $display = wfBCP47( $code ) . ' - ' . $name;
 284                         $options[$display] = $code;
 285                 }
 286                 $defaultPreferences['language'] = array(
 287                         'type' => 'select',
 288                         'section' => 'personal/i18n',
 289                         'options' => $options,
 290                         'label-message' => 'yourlanguage',
 291                 );
 292
 293                 /* see if there are multiple language variants to choose from*/
 294                 $variantArray = array();
 295                 if ( !$wgDisableLangConversion ) {
 296                         $variants = $wgContLang->getVariants();
 297
 298                         foreach ( $variants as $v ) {
 299                                 $v = str_replace( '_', '-', strtolower( $v ) );
 300                                 $variantArray[$v] = $wgContLang->getVariantname( $v, false );
 301                         }
 302
 303                         $options = array();
 304                         foreach ( $variantArray as $code => $name ) {
 305                                 $display = wfBCP47( $code ) . ' - ' . $name;
 306                                 $options[$display] = $code;
 307                         }
 308
 309                         if ( count( $variantArray ) > 1 ) {
 310                                 $defaultPreferences['variant'] = array(
 311                                         'label-message' => 'yourvariant',
 312                                         'type' => 'select',
 313                                         'options' => $options,
 314                                         'section' => 'personal/i18n',
 315                                         'help-message' => 'prefs-help-variant',
 316                                 );
 317                         }
 318                 }
 319
 320                 if ( count( $variantArray ) > 1 && !$wgDisableLangConversion && !$wgDisableTitleConversion ) {
 321                         $defaultPreferences['noconvertlink'] =
 322                                 array(
 323                                 'type' => 'toggle',
 324                                 'section' => 'personal/i18n',
 325                                 'label-message' => 'tog-noconvertlink',
 326                         );
 327                 }
 328
 329                 // show a preview of the old signature first
 330                 $oldsigWikiText = $wgParser->preSaveTransform( "~~~", $context->getTitle(), $user, ParserOptions::newFromContext( $context ) );
 331                 $oldsigHTML = $context->getOutput()->parseInline( $oldsigWikiText, true, true );
 332                 $defaultPreferences['oldsig'] = array(
 333                         'type' => 'info',
 334                         'raw' => true,
 335                         'label-message' => 'tog-oldsig',
 336                         'default' => $oldsigHTML,
 337                         'section' => 'personal/signature',
 338                 );
 339                 $defaultPreferences['nickname'] = array(
 340                         'type' => $wgAuth->allowPropChange( 'nickname' ) ? 'text' : 'info',
 341                         'maxlength' => $wgMaxSigChars,
 342                         'label-message' => 'yournick',
 343                         'validation-callback' => array( 'Preferences', 'validateSignature' ),
 344                         'section' => 'personal/signature',
 345                         'filter-callback' => array( 'Preferences', 'cleanSignature' ),
 346                 );
 347                 $defaultPreferences['fancysig'] = array(
 348                         'type' => 'toggle',
 349                         'label-message' => 'tog-fancysig',
 350                         'help-message' => 'prefs-help-signature', // show general help about signature at the bottom of the section
 351                         'section' => 'personal/signature'
 352                 );
 353
 354                 ## Email stuff
 355
 356                 if ( $wgEnableEmail ) {
 357                         $helpMessages[] = $wgEmailConfirmToEdit
 358                                         ? 'prefs-help-email-required'
 359                                         : 'prefs-help-email' ;
 360
 361                         if( $wgEnableUserEmail ) {
 362                                 // additional messages when users can send email to each other
 363                                 $helpMessages[] = 'prefs-help-email-others';
 364                         }
 365
 366                         $link = Linker::link(
 367                                 SpecialPage::getTitleFor( 'ChangeEmail' ),
 368                                 $context->msg( $user->getEmail() ? 'prefs-changeemail' : 'prefs-setemail' )->escaped(),
 369                                 array(),
 370                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' ) ) );
 371
 372                         $emailAddress = $user->getEmail() ? htmlspecialchars( $user->getEmail() ) : '';
 373                         if ( $wgAuth->allowPropChange( 'emailaddress' ) ) {
 374                                 $emailAddress .= $emailAddress == '' ? $link : ( ' ' . $context->msg( 'parentheses' )->rawParams( $link )->plain() );
 375                         }
 376
 377
 378                         $defaultPreferences['emailaddress'] = array(
 379                                 'type' => 'info',
 380                                 'raw' => true,
 381                                 'default' => $emailAddress,
 382                                 'label-message' => 'youremail',
 383                                 'section' => 'personal/email',
 384                                 'help-messages' => $helpMessages,
 385                                 # 'cssclass' chosen below
 386                         );
 387
 388                         $disableEmailPrefs = false;
 389
 390                         $emailauthenticationclass = 'mw-email-not-authenticated';
 391                         if ( $wgEmailAuthentication ) {
 392                                 if ( $user->getEmail() ) {
 393                                         if ( $user->getEmailAuthenticationTimestamp() ) {
 394                                                 // date and time are separate parameters to facilitate localisation.
 395                                                 // $time is kept for backward compat reasons.
 396                                                 // 'emailauthenticated' is also used in SpecialConfirmemail.php
 397                                                 $displayUser = $context->getUser();
 398                                                 $emailTimestamp = $user->getEmailAuthenticationTimestamp();
 399                                                 $time = $lang->userTimeAndDate( $emailTimestamp, $displayUser );
 400                                                 $d = $lang->userDate( $emailTimestamp, $displayUser );
 401                                                 $t = $lang->userTime( $emailTimestamp, $displayUser );
 402                                                 $emailauthenticated = $context->msg( 'emailauthenticated',
 403                                                         $time, $d, $t )->parse() . '<br />';
 404                                                 $disableEmailPrefs = false;
 405                                                 $emailauthenticationclass = 'mw-email-authenticated';
 406                                         } else {
 407                                                 $disableEmailPrefs = true;
 408                                                 $emailauthenticated = $context->msg( 'emailnotauthenticated' )->parse() . '<br />' .
 409                                                         Linker::linkKnown(
 410                                                                 SpecialPage::getTitleFor( 'Confirmemail' ),
 411                                                                 $context->msg( 'emailconfirmlink' )->escaped()
 412                                                         ) . '<br />';
 413                                                 $emailauthenticationclass="mw-email-not-authenticated";
 414                                         }
 415                                 } else {
 416                                         $disableEmailPrefs = true;
 417                                         $emailauthenticated = $context->msg( 'noemailprefs' )->escaped();
 418                                         $emailauthenticationclass = 'mw-email-none';
 419                                 }
 420
 421                                 $defaultPreferences['emailauthentication'] = array(
 422                                         'type' => 'info',
 423                                         'raw' => true,
 424                                         'section' => 'personal/email',
 425                                         'label-message' => 'prefs-emailconfirm-label',
 426                                         'default' => $emailauthenticated,
 427                                         # Apply the same CSS class used on the input to the message:
 428                                         'cssclass' => $emailauthenticationclass,
 429                                 );
 430                         }
 431                         $defaultPreferences['emailaddress']['cssclass'] = $emailauthenticationclass;
 432
 433                         if ( $wgEnableUserEmail && $user->isAllowed( 'sendemail' ) ) {
 434                                 $defaultPreferences['disablemail'] = array(
 435                                         'type' => 'toggle',
 436                                         'invert' => true,
 437                                         'section' => 'personal/email',
 438                                         'label-message' => 'allowemail',
 439                                         'disabled' => $disableEmailPrefs,
 440                                 );
 441                                 $defaultPreferences['ccmeonemails'] = array(
 442                                         'type' => 'toggle',
 443                                         'section' => 'personal/email',
 444                                         'label-message' => 'tog-ccmeonemails',
 445                                         'disabled' => $disableEmailPrefs,
 446                                 );
 447                         }
 448
 449                         if ( $wgEnotifWatchlist ) {
 450                                 $defaultPreferences['enotifwatchlistpages'] = array(
 451                                         'type' => 'toggle',
 452                                         'section' => 'personal/email',
 453                                         'label-message' => 'tog-enotifwatchlistpages',
 454                                         'disabled' => $disableEmailPrefs,
 455                                 );
 456                         }
 457                         if ( $wgEnotifUserTalk ) {
 458                                 $defaultPreferences['enotifusertalkpages'] = array(
 459                                         'type' => 'toggle',
 460                                         'section' => 'personal/email',
 461                                         'label-message' => 'tog-enotifusertalkpages',
 462                                         'disabled' => $disableEmailPrefs,
 463                                 );
 464                         }
 465                         if ( $wgEnotifUserTalk || $wgEnotifWatchlist ) {
 466                                 $defaultPreferences['enotifminoredits'] = array(
 467                                         'type' => 'toggle',
 468                                         'section' => 'personal/email',
 469                                         'label-message' => 'tog-enotifminoredits',
 470                                         'disabled' => $disableEmailPrefs,
 471                                 );
 472
 473                                 if ( $wgEnotifRevealEditorAddress ) {
 474                                         $defaultPreferences['enotifrevealaddr'] = array(
 475                                                 'type' => 'toggle',
 476                                                 'section' => 'personal/email',
 477                                                 'label-message' => 'tog-enotifrevealaddr',
 478                                                 'disabled' => $disableEmailPrefs,
 479                                         );
 480                                 }
 481                         }
 482                 }
 483         }
 484
 485         /**
 486          * @param $user User
 487          * @param $context IContextSource
 488          * @param $defaultPreferences
 489          * @return void
 490          */
 491         static function skinPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 492                 ## Skin #####################################
 493                 global $wgAllowUserCss, $wgAllowUserJs;
 494
 495                 $defaultPreferences['skin'] = array(
 496                         'type' => 'radio',
 497                         'options' => self::generateSkinOptions( $user, $context ),
 498                         'label' => '&#160;',
 499                         'section' => 'rendering/skin',
 500                 );
 501
 502                 # Create links to user CSS/JS pages for all skins
 503                 # This code is basically copied from generateSkinOptions().  It'd
 504                 # be nice to somehow merge this back in there to avoid redundancy.
 505                 if ( $wgAllowUserCss || $wgAllowUserJs ) {
 506                         $linkTools = array();
 507
 508                         if ( $wgAllowUserCss ) {
 509                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/common.css' );
 510                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
 511                         }
 512
 513                         if ( $wgAllowUserJs ) {
 514                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/common.js' );
 515                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
 516                         }
 517
 518                         $defaultPreferences['commoncssjs'] = array(
 519                                 'type' => 'info',
 520                                 'raw' => true,
 521                                 'default' => $context->getLanguage()->pipeList( $linkTools ),
 522                                 'label-message' => 'prefs-common-css-js',
 523                                 'section' => 'rendering/skin',
 524                         );
 525                 }
 526
 527                 $selectedSkin = $user->getOption( 'skin' );
 528                 if ( in_array( $selectedSkin, array( 'cologneblue', 'standard' ) ) ) {
 529                         $settings = array_flip( $context->getLanguage()->getQuickbarSettings() );
 530
 531                         $defaultPreferences['quickbar'] = array(
 532                                 'type' => 'radio',
 533                                 'options' => $settings,
 534                                 'section' => 'rendering/skin',
 535                                 'label-message' => 'qbsettings',
 536                         );
 537                 }
 538         }
 539
 540         /**
 541          * @param $user User
 542          * @param $context IContextSource
 543          * @param $defaultPreferences Array
 544          */
 545         static function filesPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 546                 ## Files #####################################
 547                 $defaultPreferences['imagesize'] = array(
 548                         'type' => 'select',
 549                         'options' => self::getImageSizes( $context ),
 550                         'label-message' => 'imagemaxsize',
 551                         'section' => 'rendering/files',
 552                 );
 553                 $defaultPreferences['thumbsize'] = array(
 554                         'type' => 'select',
 555                         'options' => self::getThumbSizes( $context ),
 556                         'label-message' => 'thumbsize',
 557                         'section' => 'rendering/files',
 558                 );
 559         }
 560
 561         /**
 562          * @param $user User
 563          * @param $context IContextSource
 564          * @param $defaultPreferences
 565          * @return void
 566          */
 567         static function datetimePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 568                 ## Date and time #####################################
 569                 $dateOptions = self::getDateOptions( $context );
 570                 if ( $dateOptions ) {
 571                         $defaultPreferences['date'] = array(
 572                                 'type' => 'radio',
 573                                 'options' => $dateOptions,
 574                                 'label' => '&#160;',
 575                                 'section' => 'datetime/dateformat',
 576                         );
 577                 }
 578
 579                 // Info
 580                 $now = wfTimestampNow();
 581                 $lang = $context->getLanguage();
 582                 $nowlocal = Xml::element( 'span', array( 'id' => 'wpLocalTime' ),
 583                         $lang->time( $now, true ) );
 584                 $nowserver = $lang->time( $now, false ) .
 585                         Html::hidden( 'wpServerTime', (int)substr( $now, 8, 2 ) * 60 + (int)substr( $now, 10, 2 ) );
 586
 587                 $defaultPreferences['nowserver'] = array(
 588                         'type' => 'info',
 589                         'raw' => 1,
 590                         'label-message' => 'servertime',
 591                         'default' => $nowserver,
 592                         'section' => 'datetime/timeoffset',
 593                 );
 594
 595                 $defaultPreferences['nowlocal'] = array(
 596                         'type' => 'info',
 597                         'raw' => 1,
 598                         'label-message' => 'localtime',
 599                         'default' => $nowlocal,
 600                         'section' => 'datetime/timeoffset',
 601                 );
 602
 603                 // Grab existing pref.
 604                 $tzOffset = $user->getOption( 'timecorrection' );
 605                 $tz = explode( '|', $tzOffset, 3 );
 606
 607                 $tzOptions = self::getTimezoneOptions( $context );
 608
 609                 $tzSetting = $tzOffset;
 610                 if ( count( $tz ) > 1 && $tz[0] == 'Offset' ) {
 611                         $minDiff = $tz[1];
 612                         $tzSetting = sprintf( '%+03d:%02d', floor( $minDiff / 60 ), abs( $minDiff ) % 60 );
 613                 } elseif ( count( $tz ) > 1 && $tz[0] == 'ZoneInfo' &&
 614                         !in_array( $tzOffset, HTMLFormField::flattenOptions( $tzOptions ) ) )
 615                 {
 616                         # Timezone offset can vary with DST
 617                         $userTZ = timezone_open( $tz[2] );
 618                         if ( $userTZ !== false ) {
 619                                 $minDiff = floor( timezone_offset_get( $userTZ, date_create( 'now' ) ) / 60 );
 620                                 $tzSetting = "ZoneInfo|$minDiff|{$tz[2]}";
 621                         }
 622                 }
 623
 624                 $defaultPreferences['timecorrection'] = array(
 625                         'class' => 'HTMLSelectOrOtherField',
 626                         'label-message' => 'timezonelegend',
 627                         'options' => $tzOptions,
 628                         'default' => $tzSetting,
 629                         'size' => 20,
 630                         'section' => 'datetime/timeoffset',
 631                 );
 632         }
 633
 634         /**
 635          * @param $user User
 636          * @param $context IContextSource
 637          * @param $defaultPreferences Array
 638          */
 639         static function renderingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 640                 ## Page Rendering ##############################
 641                 global $wgAllowUserCssPrefs;
 642                 if ( $wgAllowUserCssPrefs ) {
 643                         $defaultPreferences['underline'] = array(
 644                                 'type' => 'select',
 645                                 'options' => array(
 646                                         $context->msg( 'underline-never' )->text() => 0,
 647                                         $context->msg( 'underline-always' )->text() => 1,
 648                                         $context->msg( 'underline-default' )->text() => 2,
 649                                 ),
 650                                 'label-message' => 'tog-underline',
 651                                 'section' => 'rendering/advancedrendering',
 652                         );
 653                 }
 654
 655                 $stubThresholdValues = array( 50, 100, 500, 1000, 2000, 5000, 10000 );
 656                 $stubThresholdOptions = array( $context->msg( 'stub-threshold-disabled' )->text() => 0 );
 657                 foreach ( $stubThresholdValues as $value ) {
 658                         $stubThresholdOptions[$context->msg( 'size-bytes', $value )->text()] = $value;
 659                 }
 660
 661                 $defaultPreferences['stubthreshold'] = array(
 662                         'type' => 'selectorother',
 663                         'section' => 'rendering/advancedrendering',
 664                         'options' => $stubThresholdOptions,
 665                         'size' => 20,
 666                         'label' => $context->msg( 'stub-threshold' )->text(), // Raw HTML message. Yay?
 667                 );
 668
 669                 if ( $wgAllowUserCssPrefs ) {
 670                         $defaultPreferences['showtoc'] = array(
 671                                 'type' => 'toggle',
 672                                 'section' => 'rendering/advancedrendering',
 673                                 'label-message' => 'tog-showtoc',
 674                         );
 675                 }
 676                 $defaultPreferences['nocache'] = array(
 677                         'type' => 'toggle',
 678                         'label-message' => 'tog-nocache',
 679                         'section' => 'rendering/advancedrendering',
 680                 );
 681                 $defaultPreferences['showhiddencats'] = array(
 682                         'type' => 'toggle',
 683                         'section' => 'rendering/advancedrendering',
 684                         'label-message' => 'tog-showhiddencats'
 685                 );
 686                 $defaultPreferences['showjumplinks'] = array(
 687                         'type' => 'toggle',
 688                         'section' => 'rendering/advancedrendering',
 689                         'label-message' => 'tog-showjumplinks',
 690                 );
 691
 692                 if ( $wgAllowUserCssPrefs ) {
 693                         $defaultPreferences['justify'] = array(
 694                                 'type' => 'toggle',
 695                                 'section' => 'rendering/advancedrendering',
 696                                 'label-message' => 'tog-justify',
 697                         );
 698                 }
 699
 700                 $defaultPreferences['numberheadings'] = array(
 701                         'type' => 'toggle',
 702                         'section' => 'rendering/advancedrendering',
 703                         'label-message' => 'tog-numberheadings',
 704                 );
 705         }
 706
 707         /**
 708          * @param $user User
 709          * @param $context IContextSource
 710          * @param $defaultPreferences Array
 711          */
 712         static function editingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 713                 global $wgUseExternalEditor, $wgAllowUserCssPrefs;
 714
 715                 ## Editing #####################################
 716                 $defaultPreferences['cols'] = array(
 717                         'type' => 'int',
 718                         'label-message' => 'columns',
 719                         'section' => 'editing/textboxsize',
 720                         'min' => 4,
 721                         'max' => 1000,
 722                 );
 723                 $defaultPreferences['rows'] = array(
 724                         'type' => 'int',
 725                         'label-message' => 'rows',
 726                         'section' => 'editing/textboxsize',
 727                         'min' => 4,
 728                         'max' => 1000,
 729                 );
 730
 731                 if ( $wgAllowUserCssPrefs ) {
 732                         $defaultPreferences['editfont'] = array(
 733                                 'type' => 'select',
 734                                 'section' => 'editing/advancedediting',
 735                                 'label-message' => 'editfont-style',
 736                                 'options' => array(
 737                                         $context->msg( 'editfont-default' )->text() => 'default',
 738                                         $context->msg( 'editfont-monospace' )->text() => 'monospace',
 739                                         $context->msg( 'editfont-sansserif' )->text() => 'sans-serif',
 740                                         $context->msg( 'editfont-serif' )->text() => 'serif',
 741                                 )
 742                         );
 743                 }
 744                 $defaultPreferences['previewontop'] = array(
 745                         'type' => 'toggle',
 746                         'section' => 'editing/advancedediting',
 747                         'label-message' => 'tog-previewontop',
 748                 );
 749                 $defaultPreferences['previewonfirst'] = array(
 750                         'type' => 'toggle',
 751                         'section' => 'editing/advancedediting',
 752                         'label-message' => 'tog-previewonfirst',
 753                 );
 754
 755                 if ( $wgAllowUserCssPrefs ) {
 756                         $defaultPreferences['editsection'] = array(
 757                                 'type' => 'toggle',
 758                                 'section' => 'editing/advancedediting',
 759                                 'label-message' => 'tog-editsection',
 760                         );
 761                 }
 762                 $defaultPreferences['editsectiononrightclick'] = array(
 763                         'type' => 'toggle',
 764                         'section' => 'editing/advancedediting',
 765                         'label-message' => 'tog-editsectiononrightclick',
 766                 );
 767                 $defaultPreferences['editondblclick'] = array(
 768                         'type' => 'toggle',
 769                         'section' => 'editing/advancedediting',
 770                         'label-message' => 'tog-editondblclick',
 771                 );
 772                 $defaultPreferences['showtoolbar'] = array(
 773                         'type' => 'toggle',
 774                         'section' => 'editing/advancedediting',
 775                         'label-message' => 'tog-showtoolbar',
 776                 );
 777
 778                 if ( $user->isAllowed( 'minoredit' ) ) {
 779                         $defaultPreferences['minordefault'] = array(
 780                                 'type' => 'toggle',
 781                                 'section' => 'editing/advancedediting',
 782                                 'label-message' => 'tog-minordefault',
 783                         );
 784                 }
 785
 786                 if ( $wgUseExternalEditor ) {
 787                         $defaultPreferences['externaleditor'] = array(
 788                                 'type' => 'toggle',
 789                                 'section' => 'editing/advancedediting',
 790                                 'label-message' => 'tog-externaleditor',
 791                         );
 792                         $defaultPreferences['externaldiff'] = array(
 793                                 'type' => 'toggle',
 794                                 'section' => 'editing/advancedediting',
 795                                 'label-message' => 'tog-externaldiff',
 796                         );
 797                 }
 798
 799                 $defaultPreferences['forceeditsummary'] = array(
 800                         'type' => 'toggle',
 801                         'section' => 'editing/advancedediting',
 802                         'label-message' => 'tog-forceeditsummary',
 803                 );
 804
 805
 806                 $defaultPreferences['uselivepreview'] = array(
 807                         'type' => 'toggle',
 808                         'section' => 'editing/advancedediting',
 809                         'label-message' => 'tog-uselivepreview',
 810                 );
 811         }
 812
 813         /**
 814          * @param $user User
 815          * @param $context IContextSource
 816          * @param $defaultPreferences Array
 817          */
 818         static function rcPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 819                 global $wgRCMaxAge, $wgRCShowWatchingUsers;
 820
 821                 ## RecentChanges #####################################
 822                 $defaultPreferences['rcdays'] = array(
 823                         'type' => 'float',
 824                         'label-message' => 'recentchangesdays',
 825                         'section' => 'rc/displayrc',
 826                         'min' => 1,
 827                         'max' => ceil( $wgRCMaxAge / ( 3600 * 24 ) ),
 828                         'help' => $context->msg( 'recentchangesdays-max' )->numParams(
 829                                 ceil( $wgRCMaxAge / ( 3600 * 24 ) ) )->text()
 830                 );
 831                 $defaultPreferences['rclimit'] = array(
 832                         'type' => 'int',
 833                         'label-message' => 'recentchangescount',
 834                         'help-message' => 'prefs-help-recentchangescount',
 835                         'section' => 'rc/displayrc',
 836                 );
 837                 $defaultPreferences['usenewrc'] = array(
 838                         'type' => 'toggle',
 839                         'label-message' => 'tog-usenewrc',
 840                         'section' => 'rc/advancedrc',
 841                 );
 842                 $defaultPreferences['hideminor'] = array(
 843                         'type' => 'toggle',
 844                         'label-message' => 'tog-hideminor',
 845                         'section' => 'rc/advancedrc',
 846                 );
 847
 848                 if ( $user->useRCPatrol() ) {
 849                         $defaultPreferences['hidepatrolled'] = array(
 850                                 'type' => 'toggle',
 851                                 'section' => 'rc/advancedrc',
 852                                 'label-message' => 'tog-hidepatrolled',
 853                         );
 854                         $defaultPreferences['newpageshidepatrolled'] = array(
 855                                 'type' => 'toggle',
 856                                 'section' => 'rc/advancedrc',
 857                                 'label-message' => 'tog-newpageshidepatrolled',
 858                         );
 859                 }
 860
 861                 if ( $wgRCShowWatchingUsers ) {
 862                         $defaultPreferences['shownumberswatching'] = array(
 863                                 'type' => 'toggle',
 864                                 'section' => 'rc/advancedrc',
 865                                 'label-message' => 'tog-shownumberswatching',
 866                         );
 867                 }
 868         }
 869
 870         /**
 871          * @param $user User
 872          * @param $context IContextSource
 873          * @param $defaultPreferences
 874          */
 875         static function watchlistPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 876                 global $wgUseRCPatrol, $wgEnableAPI, $wgRCMaxAge;
 877
 878                 $watchlistdaysMax = ceil( $wgRCMaxAge / ( 3600 * 24 ) );
 879
 880                 ## Watchlist #####################################
 881                 $defaultPreferences['watchlistdays'] = array(
 882                         'type' => 'float',
 883                         'min' => 0,
 884                         'max' => $watchlistdaysMax,
 885                         'section' => 'watchlist/displaywatchlist',
 886                         'help' => $context->msg( 'prefs-watchlist-days-max' )->numParams(
 887                                                  $watchlistdaysMax )->text(),
 888                         'label-message' => 'prefs-watchlist-days',
 889                 );
 890                 $defaultPreferences['wllimit'] = array(
 891                         'type' => 'int',
 892                         'min' => 0,
 893                         'max' => 1000,
 894                         'label-message' => 'prefs-watchlist-edits',
 895                         'help' => $context->msg( 'prefs-watchlist-edits-max' )->escaped(),
 896                         'section' => 'watchlist/displaywatchlist',
 897                 );
 898                 $defaultPreferences['extendwatchlist'] = array(
 899                         'type' => 'toggle',
 900                         'section' => 'watchlist/advancedwatchlist',
 901                         'label-message' => 'tog-extendwatchlist',
 902                 );
 903                 $defaultPreferences['watchlisthideminor'] = array(
 904                         'type' => 'toggle',
 905                         'section' => 'watchlist/advancedwatchlist',
 906                         'label-message' => 'tog-watchlisthideminor',
 907                 );
 908                 $defaultPreferences['watchlisthidebots'] = array(
 909                         'type' => 'toggle',
 910                         'section' => 'watchlist/advancedwatchlist',
 911                         'label-message' => 'tog-watchlisthidebots',
 912                 );
 913                 $defaultPreferences['watchlisthideown'] = array(
 914                         'type' => 'toggle',
 915                         'section' => 'watchlist/advancedwatchlist',
 916                         'label-message' => 'tog-watchlisthideown',
 917                 );
 918                 $defaultPreferences['watchlisthideanons'] = array(
 919                         'type' => 'toggle',
 920                         'section' => 'watchlist/advancedwatchlist',
 921                         'label-message' => 'tog-watchlisthideanons',
 922                 );
 923                 $defaultPreferences['watchlisthideliu'] = array(
 924                         'type' => 'toggle',
 925                         'section' => 'watchlist/advancedwatchlist',
 926                         'label-message' => 'tog-watchlisthideliu',
 927                 );
 928
 929                 if ( $wgUseRCPatrol ) {
 930                         $defaultPreferences['watchlisthidepatrolled'] = array(
 931                                 'type' => 'toggle',
 932                                 'section' => 'watchlist/advancedwatchlist',
 933                                 'label-message' => 'tog-watchlisthidepatrolled',
 934                         );
 935                 }
 936
 937                 if ( $wgEnableAPI ) {
 938                         # Some random gibberish as a proposed default
 939                         // @fixme This should use CryptRand but we may not want to read urandom on every view
 940                         $hash = sha1( mt_rand() . microtime( true ) );
 941
 942                         $defaultPreferences['watchlisttoken'] = array(
 943                                 'type' => 'text',
 944                                 'section' => 'watchlist/advancedwatchlist',
 945                                 'label-message' => 'prefs-watchlist-token',
 946                                 'help' => $context->msg( 'prefs-help-watchlist-token', $hash )->escaped()
 947                         );
 948                 }
 949
 950                 $watchTypes = array(
 951                         'edit' => 'watchdefault',
 952                         'move' => 'watchmoves',
 953                         'delete' => 'watchdeletion'
 954                 );
 955
 956                 // Kinda hacky
 957                 if ( $user->isAllowed( 'createpage' ) || $user->isAllowed( 'createtalk' ) ) {
 958                         $watchTypes['read'] = 'watchcreations';
 959                 }
 960
 961                 foreach ( $watchTypes as $action => $pref ) {
 962                         if ( $user->isAllowed( $action ) ) {
 963                                 $defaultPreferences[$pref] = array(
 964                                         'type' => 'toggle',
 965                                         'section' => 'watchlist/advancedwatchlist',
 966                                         'label-message' => "tog-$pref",
 967                                 );
 968                         }
 969                 }
 970         }
 971
 972         /**
 973          * @param $user User
 974          * @param $context IContextSource
 975          * @param $defaultPreferences Array
 976          */
 977         static function searchPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 978                 global $wgContLang, $wgEnableMWSuggest, $wgVectorUseSimpleSearch;
 979
 980                 ## Search #####################################
 981                 $defaultPreferences['searchlimit'] = array(
 982                         'type' => 'int',
 983                         'label-message' => 'resultsperpage',
 984                         'section' => 'searchoptions/displaysearchoptions',
 985                         'min' => 0,
 986                 );
 987
 988                 if ( $wgEnableMWSuggest ) {
 989                         $defaultPreferences['disablesuggest'] = array(
 990                                 'type' => 'toggle',
 991                                 'label-message' => 'mwsuggest-disable',
 992                                 'section' => 'searchoptions/displaysearchoptions',
 993                         );
 994                 }
 995
 996                 if ( $wgVectorUseSimpleSearch ) {
 997                         $defaultPreferences['vector-simplesearch'] = array(
 998                                 'type' => 'toggle',
 999                                 'label-message' => 'vector-simplesearch-preference',
1000                                 'section' => 'searchoptions/displaysearchoptions'
1001                         );
1002                 }
1003
1004                 $defaultPreferences['searcheverything'] = array(
1005                         'type' => 'toggle',
1006                         'label-message' => 'searcheverything-enable',
1007                         'section' => 'searchoptions/advancedsearchoptions',
1008                 );
1009
1010                 $nsOptions = array();
1011
1012                 foreach ( $wgContLang->getNamespaces() as $ns => $name ) {
1013                         if ( $ns < 0 ) {
1014                                 continue;
1015                         }
1016
1017                         $displayNs = str_replace( '_', ' ', $name );
1018
1019                         if ( !$displayNs ) {
1020                                 $displayNs = $context->msg( 'blanknamespace' )->text();
1021                         }
1022
1023                         $displayNs = htmlspecialchars( $displayNs );
1024                         $nsOptions[$displayNs] = $ns;
1025                 }
1026
1027                 $defaultPreferences['searchnamespaces'] = array(
1028                         'type' => 'multiselect',
1029                         'label-message' => 'defaultns',
1030                         'options' => $nsOptions,
1031                         'section' => 'searchoptions/advancedsearchoptions',
1032                         'prefix' => 'searchNs',
1033                 );
1034         }
1035
1036         /**
1037          * @param $user User
1038          * @param $context IContextSource
1039          * @param $defaultPreferences Array
1040          */
1041         static function miscPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1042                 global $wgContLang;
1043
1044                 ## Misc #####################################
1045                 $defaultPreferences['diffonly'] = array(
1046                         'type' => 'toggle',
1047                         'section' => 'misc/diffs',
1048                         'label-message' => 'tog-diffonly',
1049                 );
1050                 $defaultPreferences['norollbackdiff'] = array(
1051                         'type' => 'toggle',
1052                         'section' => 'misc/diffs',
1053                         'label-message' => 'tog-norollbackdiff',
1054                 );
1055
1056                 // Stuff from Language::getExtraUserToggles()
1057                 $toggles = $wgContLang->getExtraUserToggles();
1058
1059                 foreach ( $toggles as $toggle ) {
1060                         $defaultPreferences[$toggle] = array(
1061                                 'type' => 'toggle',
1062                                 'section' => 'personal/i18n',
1063                                 'label-message' => "tog-$toggle",
1064                         );
1065                 }
1066         }
1067
1068         /**
1069          * @param $user User The User object
1070          * @param $context IContextSource
1071          * @return Array: text/links to display as key; $skinkey as value
1072          */
1073         static function generateSkinOptions( $user, IContextSource $context ) {
1074                 global $wgDefaultSkin, $wgAllowUserCss, $wgAllowUserJs;
1075                 $ret = array();
1076
1077                 $mptitle = Title::newMainPage();
1078                 $previewtext = $context->msg( 'skin-preview' )->text();
1079
1080                 # Only show members of Skin::getSkinNames() rather than
1081                 # $skinNames (skins is all skin names from Language.php)
1082                 $validSkinNames = Skin::getUsableSkins();
1083
1084                 # Sort by UI skin name. First though need to update validSkinNames as sometimes
1085                 # the skinkey & UI skinname differ (e.g. "standard" skinkey is "Classic" in the UI).
1086                 foreach ( $validSkinNames as $skinkey => &$skinname ) {
1087                         $msg = $context->msg( "skinname-{$skinkey}" );
1088                         if ( $msg->exists() ) {
1089                                 $skinname = htmlspecialchars( $msg->text() );
1090                         }
1091                 }
1092                 asort( $validSkinNames );
1093
1094                 foreach ( $validSkinNames as $skinkey => $sn ) {
1095                         $linkTools = array();
1096
1097                         # Mark the default skin
1098                         if ( $skinkey == $wgDefaultSkin ) {
1099                                 $linkTools[] = $context->msg( 'default' )->escaped();
1100                         }
1101
1102                         # Create preview link
1103                         $mplink = htmlspecialchars( $mptitle->getLocalURL( "useskin=$skinkey" ) );
1104                         $linkTools[] = "<a target='_blank' href=\"$mplink\">$previewtext</a>";
1105
1106                         # Create links to user CSS/JS pages
1107                         if ( $wgAllowUserCss ) {
1108                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.css' );
1109                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
1110                         }
1111
1112                         if ( $wgAllowUserJs ) {
1113                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.js' );
1114                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
1115                         }
1116
1117                         $display = $sn . ' ' . $context->msg( 'parentheses', $context->getLanguage()->pipeList( $linkTools ) )->text();
1118                         $ret[$display] = $skinkey;
1119                 }
1120
1121                 return $ret;
1122         }
1123
1124         /**
1125          * @param $context IContextSource
1126          * @return array
1127          */
1128         static function getDateOptions( IContextSource $context ) {
1129                 $lang = $context->getLanguage();
1130                 $dateopts = $lang->getDatePreferences();
1131
1132                 $ret = array();
1133
1134                 if ( $dateopts ) {
1135                         if ( !in_array( 'default', $dateopts ) ) {
1136                                 $dateopts[] = 'default'; // Make sure default is always valid
1137                                                                                 // Bug 19237
1138                         }
1139
1140                         // KLUGE: site default might not be valid for user language
1141                         global $wgDefaultUserOptions;
1142                         if ( !in_array( $wgDefaultUserOptions['date'], $dateopts ) ) {
1143                                 $wgDefaultUserOptions['date'] = 'default';
1144                         }
1145
1146                         $epoch = wfTimestampNow();
1147                         foreach ( $dateopts as $key ) {
1148                                 if ( $key == 'default' ) {
1149                                         $formatted = $context->msg( 'datedefault' )->escaped();
1150                                 } else {
1151                                         $formatted = htmlspecialchars( $lang->timeanddate( $epoch, false, $key ) );
1152                                 }
1153                                 $ret[$formatted] = $key;
1154                         }
1155                 }
1156                 return $ret;
1157         }
1158
1159         /**
1160          * @param $context IContextSource
1161          * @return array
1162          */
1163         static function getImageSizes( IContextSource $context ) {
1164                 global $wgImageLimits;
1165
1166                 $ret = array();
1167                 $pixels = $context->msg( 'unit-pixel' )->text();
1168
1169                 foreach ( $wgImageLimits as $index => $limits ) {
1170                         $display = "{$limits[0]}×{$limits[1]}" . $pixels;
1171                         $ret[$display] = $index;
1172                 }
1173
1174                 return $ret;
1175         }
1176
1177         /**
1178          * @param $context IContextSource
1179          * @return array
1180          */
1181         static function getThumbSizes( IContextSource $context ) {
1182                 global $wgThumbLimits;
1183
1184                 $ret = array();
1185                 $pixels = $context->msg( 'unit-pixel' )->text();
1186
1187                 foreach ( $wgThumbLimits as $index => $size ) {
1188                         $display = $size . $pixels;
1189                         $ret[$display] = $index;
1190                 }
1191
1192                 return $ret;
1193         }
1194
1195         /**
1196          * @param $signature string
1197          * @param $alldata array
1198          * @param $form HTMLForm
1199          * @return bool|string
1200          */
1201         static function validateSignature( $signature, $alldata, $form ) {
1202                 global $wgParser, $wgMaxSigChars;
1203                 if ( mb_strlen( $signature ) > $wgMaxSigChars ) {
1204                         return Xml::element( 'span', array( 'class' => 'error' ),
1205                                 $form->msg( 'badsiglength' )->numParams( $wgMaxSigChars )->text() );
1206                 } elseif ( isset( $alldata['fancysig'] ) &&
1207                                 $alldata['fancysig'] &&
1208                                 false === $wgParser->validateSig( $signature ) ) {
1209                         return Xml::element( 'span', array( 'class' => 'error' ), $form->msg( 'badsig' )->text() );
1210                 } else {
1211                         return true;
1212                 }
1213         }
1214
1215         /**
1216          * @param $signature string
1217          * @param $alldata array
1218          * @param $form HTMLForm
1219          * @return string
1220          */
1221         static function cleanSignature( $signature, $alldata, $form ) {
1222                 if ( isset( $alldata['fancysig'] ) && $alldata['fancysig'] ) {
1223                         global $wgParser;
1224                         $signature = $wgParser->cleanSig( $signature );
1225                 } else {
1226                         // When no fancy sig used, make sure ~{3,5} get removed.
1227                         $signature = Parser::cleanSigInSig( $signature );
1228                 }
1229
1230                 return $signature;
1231         }
1232
1233         /**
1234          * @param $user User
1235          * @param $context IContextSource
1236          * @param $formClass string
1237          * @param $remove Array: array of items to remove
1238          * @return HtmlForm
1239          */
1240         static function getFormObject( $user, IContextSource $context, $formClass = 'PreferencesForm', array $remove = array() ) {
1241                 $formDescriptor = Preferences::getPreferences( $user, $context );
1242                 if ( count( $remove ) ) {
1243                         $removeKeys = array_flip( $remove );
1244                         $formDescriptor = array_diff_key( $formDescriptor, $removeKeys );
1245                 }
1246
1247                 /**
1248                  * @var $htmlForm PreferencesForm
1249                  */
1250                 $htmlForm = new $formClass( $formDescriptor, $context, 'prefs' );
1251
1252                 $htmlForm->setModifiedUser( $user );
1253                 $htmlForm->setId( 'mw-prefs-form' );
1254                 $htmlForm->setSubmitText( $context->msg( 'saveprefs' )->text() );
1255                 # Used message keys: 'accesskey-preferences-save', 'tooltip-preferences-save'
1256                 $htmlForm->setSubmitTooltip( 'preferences-save' );
1257                 $htmlForm->setSubmitID( 'prefsubmit' );
1258                 $htmlForm->setSubmitCallback( array( 'Preferences', 'tryFormSubmit' ) );
1259
1260                 return $htmlForm;
1261         }
1262
1263         /**
1264          * @return array
1265          */
1266         static function getTimezoneOptions( IContextSource $context ) {
1267                 $opt = array();
1268
1269                 global $wgLocalTZoffset, $wgLocaltimezone;
1270                 // Check that $wgLocalTZoffset is the same as $wgLocaltimezone
1271                 if ( $wgLocalTZoffset == date( 'Z' ) / 60 ) {
1272                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $wgLocaltimezone )->text();
1273                 } else {
1274                         $tzstring = sprintf( '%+03d:%02d', floor( $wgLocalTZoffset / 60 ), abs( $wgLocalTZoffset ) % 60 );
1275                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $tzstring )->text();
1276                 }
1277                 $opt[$server_tz_msg] = "System|$wgLocalTZoffset";
1278                 $opt[$context->msg( 'timezoneuseoffset' )->text()] = 'other';
1279                 $opt[$context->msg( 'guesstimezone' )->text()] = 'guess';
1280
1281                 if ( function_exists( 'timezone_identifiers_list' ) ) {
1282                         # Read timezone list
1283                         $tzs = timezone_identifiers_list();
1284                         sort( $tzs );
1285
1286                         $tzRegions = array();
1287                         $tzRegions['Africa'] = $context->msg( 'timezoneregion-africa' )->text();
1288                         $tzRegions['America'] = $context->msg( 'timezoneregion-america' )->text();
1289                         $tzRegions['Antarctica'] = $context->msg( 'timezoneregion-antarctica' )->text();
1290                         $tzRegions['Arctic'] = $context->msg( 'timezoneregion-arctic' )->text();
1291                         $tzRegions['Asia'] = $context->msg( 'timezoneregion-asia' )->text();
1292                         $tzRegions['Atlantic'] = $context->msg( 'timezoneregion-atlantic' )->text();
1293                         $tzRegions['Australia'] = $context->msg( 'timezoneregion-australia' )->text();
1294                         $tzRegions['Europe'] = $context->msg( 'timezoneregion-europe' )->text();
1295                         $tzRegions['Indian'] = $context->msg( 'timezoneregion-indian' )->text();
1296                         $tzRegions['Pacific'] = $context->msg( 'timezoneregion-pacific' )->text();
1297                         asort( $tzRegions );
1298
1299                         $prefill = array_fill_keys( array_values( $tzRegions ), array() );
1300                         $opt = array_merge( $opt, $prefill );
1301
1302                         $now = date_create( 'now' );
1303
1304                         foreach ( $tzs as $tz ) {
1305                                 $z = explode( '/', $tz, 2 );
1306
1307                                 # timezone_identifiers_list() returns a number of
1308                                 # backwards-compatibility entries. This filters them out of the
1309                                 # list presented to the user.
1310                                 if ( count( $z ) != 2 || !array_key_exists( $z[0], $tzRegions ) ) {
1311                                         continue;
1312                                 }
1313
1314                                 # Localize region
1315                                 $z[0] = $tzRegions[$z[0]];
1316
1317                                 $minDiff = floor( timezone_offset_get( timezone_open( $tz ), $now ) / 60 );
1318
1319                                 $display = str_replace( '_', ' ', $z[0] . '/' . $z[1] );
1320                                 $value = "ZoneInfo|$minDiff|$tz";
1321
1322                                 $opt[$z[0]][$display] = $value;
1323                         }
1324                 }
1325                 return $opt;
1326         }
1327
1328         /**
1329          * @param $value
1330          * @param $alldata
1331          * @return int
1332          */
1333         static function filterIntval( $value, $alldata ){
1334                 return intval( $value );
1335         }
1336
1337         /**
1338          * @param $tz
1339          * @param $alldata
1340          * @return string
1341          */
1342         static function filterTimezoneInput( $tz, $alldata ) {
1343                 $data = explode( '|', $tz, 3 );
1344                 switch ( $data[0] ) {
1345                         case 'ZoneInfo':
1346                         case 'System':
1347                                 return $tz;
1348                         default:
1349                                 $data = explode( ':', $tz, 2 );
1350                                 if ( count( $data ) == 2 ) {
1351                                         $data[0] = intval( $data[0] );
1352                                         $data[1] = intval( $data[1] );
1353                                         $minDiff = abs( $data[0] ) * 60 + $data[1];
1354                                         if ( $data[0] < 0 ) $minDiff = - $minDiff;
1355                                 } else {
1356                                         $minDiff = intval( $data[0] ) * 60;
1357                                 }
1358
1359                                 # Max is +14:00 and min is -12:00, see:
1360                                 # http://en.wikipedia.org/wiki/Timezone
1361                                 $minDiff = min( $minDiff, 840 );  # 14:00
1362                                 $minDiff = max( $minDiff, - 720 ); # -12:00
1363                                 return 'Offset|' . $minDiff;
1364                 }
1365         }
1366
1367         /**
1368          * @param $formData
1369          * @param $form PreferencesForm
1370          * @param $entryPoint string
1371          * @return bool|Status|string
1372          */
1373         static function tryFormSubmit( $formData, $form, $entryPoint = 'internal' ) {
1374                 global $wgHiddenPrefs;
1375
1376                 $user = $form->getModifiedUser();
1377                 $result = true;
1378
1379                 // Filter input
1380                 foreach ( array_keys( $formData ) as $name ) {
1381                         if ( isset( self::$saveFilters[$name] ) ) {
1382                                 $formData[$name] =
1383                                         call_user_func( self::$saveFilters[$name], $formData[$name], $formData );
1384                         }
1385                 }
1386
1387                 // Stuff that shouldn't be saved as a preference.
1388                 $saveBlacklist = array(
1389                         'realname',
1390                         'emailaddress',
1391                 );
1392
1393                 // Fortunately, the realname field is MUCH simpler
1394                 if ( !in_array( 'realname', $wgHiddenPrefs ) ) {
1395                         $realName = $formData['realname'];
1396                         $user->setRealName( $realName );
1397                 }
1398
1399                 foreach ( $saveBlacklist as $b ) {
1400                         unset( $formData[$b] );
1401                 }
1402
1403                 # If users have saved a value for a preference which has subsequently been disabled
1404                 # via $wgHiddenPrefs, we don't want to destroy that setting in case the preference
1405                 # is subsequently re-enabled
1406                 # TODO: maintenance script to actually delete these
1407                 foreach( $wgHiddenPrefs as $pref ){
1408                         # If the user has not set a non-default value here, the default will be returned
1409                         # and subsequently discarded
1410                         $formData[$pref] = $user->getOption( $pref, null, true );
1411                 }
1412
1413                 //  Keeps old preferences from interfering due to back-compat
1414                 //  code, etc.
1415                 $user->resetOptions();
1416
1417                 foreach ( $formData as $key => $value ) {
1418                         $user->setOption( $key, $value );
1419                 }
1420
1421                 $user->saveSettings();
1422
1423                 return $result;
1424         }
1425
1426         /**
1427          * @param $formData
1428          * @param $form PreferencesForm
1429          * @return Status
1430          */
1431         public static function tryUISubmit( $formData, $form ) {
1432                 $res = self::tryFormSubmit( $formData, $form, 'ui' );
1433
1434                 if ( $res ) {
1435                         $urlOptions = array( 'success' => 1 );
1436
1437                         if ( $res === 'eauth' ) {
1438                                 $urlOptions['eauth'] = 1;
1439                         }
1440
1441                         $urlOptions += $form->getExtraSuccessRedirectParameters();
1442
1443                         $url = $form->getTitle()->getFullURL( $urlOptions );
1444
1445                         $form->getContext()->getOutput()->redirect( $url );
1446                 }
1447
1448                 return Status::newGood();
1449         }
1450
1451         /**
1452          * Try to set a user's email address.
1453          * This does *not* try to validate the address.
1454          * Caller is responsible for checking $wgAuth.
1455          *
1456          * @deprecated in 1.20; use User::setEmailWithConfirmation() instead.
1457          * @param $user User
1458          * @param $newaddr string New email address
1459          * @return Array (true on success or Status on failure, info string)
1460          */
1461         public static function trySetUserEmail( User $user, $newaddr ) {
1462                 wfDeprecated( __METHOD__, '1.20' );
1463
1464                 $result = $user->setEmailWithConfirmation( $newaddr );
1465                 if ( $result->isGood() ) {
1466                         return array( true, $result->value );
1467                 } else {
1468                         return array( $result, 'mailerror' );
1469                 }
1470         }
1471
1472         /**
1473          * @deprecated in 1.19; will be removed in 1.20.
1474          * @param $user User
1475          * @return array
1476          */
1477         public static function loadOldSearchNs( $user ) {
1478                 wfDeprecated( __METHOD__, '1.19' );
1479
1480                 $searchableNamespaces = SearchEngine::searchableNamespaces();
1481                 // Back compat with old format
1482                 $arr = array();
1483
1484                 foreach ( $searchableNamespaces as $ns => $name ) {
1485                         if ( $user->getOption( 'searchNs' . $ns ) ) {
1486                                 $arr[] = $ns;
1487                         }
1488                 }
1489
1490                 return $arr;
1491         }
1492 }
1493
1494 /** Some tweaks to allow js prefs to work */
1495 class PreferencesForm extends HTMLForm {
1496         // Override default value from HTMLForm
1497         protected $mSubSectionBeforeFields = false;
1498
1499         private $modifiedUser;
1500
1501         /**
1502          * @param $user User
1503          */
1504         public function setModifiedUser( $user ) {
1505                 $this->modifiedUser = $user;
1506         }
1507
1508         /**
1509          * @return User
1510          */
1511         public function getModifiedUser() {
1512                 if ( $this->modifiedUser === null ) {
1513                         return $this->getUser();
1514                 } else {
1515                         return $this->modifiedUser;
1516                 }
1517         }
1518
1519         /**
1520          * Get extra parameters for the query string when redirecting after
1521          * successful save.
1522          *
1523          * @return array()
1524          */
1525         public function getExtraSuccessRedirectParameters() {
1526                 return array();
1527         }
1528
1529         /**
1530          * @param $html string
1531          * @return String
1532          */
1533         function wrapForm( $html ) {
1534                 $html = Xml::tags( 'div', array( 'id' => 'preferences' ), $html );
1535
1536                 return parent::wrapForm( $html );
1537         }
1538
1539         /**
1540          * @return String
1541          */
1542         function getButtons() {
1543                 $html = parent::getButtons();
1544
1545                 $t = SpecialPage::getTitleFor( 'Preferences', 'reset' );
1546
1547                 $html .= "\n" . Linker::link( $t, $this->msg( 'restoreprefs' )->escaped() );
1548
1549                 $html = Xml::tags( 'div', array( 'class' => 'mw-prefs-buttons' ), $html );
1550
1551                 return $html;
1552         }
1553
1554         /**
1555          * @param $data array
1556          * @return array
1557          */
1558         function filterDataForSubmit( $data ) {
1559                 // Support for separating MultiSelect preferences into multiple preferences
1560                 // Due to lack of array support.
1561                 foreach ( $this->mFlatFields as $fieldname => $field ) {
1562                         $info = $field->mParams;
1563                         if ( $field instanceof HTMLMultiSelectField ) {
1564                                 $options = HTMLFormField::flattenOptions( $info['options'] );
1565                                 $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $fieldname;
1566
1567                                 foreach ( $options as $opt ) {
1568                                         $data["$prefix$opt"] = in_array( $opt, $data[$fieldname] );
1569                                 }
1570
1571                                 unset( $data[$fieldname] );
1572                         }
1573                 }
1574
1575                 return $data;
1576         }
1577
1578         /**
1579          * Get the whole body of the form.
1580          * @return string
1581          */
1582         function getBody() {
1583                 return $this->displaySection( $this->mFieldTree, '', 'mw-prefsection-' );
1584         }
1585
1586         /**
1587          * Get the <legend> for a given section key. Normally this is the
1588          * prefs-$key message but we'll allow extensions to override it.
1589          * @param $key string
1590          * @return string
1591          */
1592         function getLegend( $key ) {
1593                 $legend = parent::getLegend( $key );
1594                 wfRunHooks( 'PreferencesGetLegend', array( $this, $key, &$legend ) );
1595                 return $legend;
1596         }
1597 }