includes/Preferences.php

   1 <?php
   2 /**
   3  * Form to edit user preferences.
   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 multiselect 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                 // Handling for checkmatrix preferences
 147                 if ( ( isset( $info['type'] ) && $info['type'] == 'checkmatrix' ) ||
 148                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLCheckMatrix' ) ) {
 149                         $columns = HTMLFormField::flattenOptions( $info['columns'] );
 150                         $rows = HTMLFormField::flattenOptions( $info['rows'] );
 151                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 152                         $val = array();
 153
 154                         foreach ( $columns as $column ) {
 155                                 foreach ( $rows as $row ) {
 156                                         if ( $user->getOption( "$prefix-$column-$row" ) ) {
 157                                                 $val[] = "$column-$row";
 158                                         }
 159                                 }
 160                         }
 161                 }
 162
 163                 return $val;
 164         }
 165
 166         /**
 167          * @param $user User
 168          * @param $context IContextSource
 169          * @param $defaultPreferences
 170          * @return void
 171          */
 172         static function profilePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 173                 global $wgAuth, $wgContLang, $wgParser, $wgCookieExpiration, $wgLanguageCode,
 174                         $wgDisableTitleConversion, $wgDisableLangConversion, $wgMaxSigChars,
 175                         $wgEnableEmail, $wgEmailConfirmToEdit, $wgEnableUserEmail, $wgEmailAuthentication,
 176                         $wgEnotifWatchlist, $wgEnotifUserTalk, $wgEnotifRevealEditorAddress;
 177
 178                 // retrieving user name for GENDER and misc.
 179                 $userName = $user->getName();
 180
 181                 ## User info #####################################
 182                 // Information panel
 183                 $defaultPreferences['username'] = array(
 184                         'type' => 'info',
 185                         'label-message' => array( 'username', $userName ),
 186                         'default' => $userName,
 187                         'section' => 'personal/info',
 188                 );
 189
 190                 $defaultPreferences['userid'] = array(
 191                         'type' => 'info',
 192                         'label-message' => array( 'uid', $userName ),
 193                         'default' => $user->getId(),
 194                         'section' => 'personal/info',
 195                 );
 196
 197                 # Get groups to which the user belongs
 198                 $userEffectiveGroups = $user->getEffectiveGroups();
 199                 $userGroups = $userMembers = array();
 200                 foreach ( $userEffectiveGroups as $ueg ) {
 201                         if ( $ueg == '*' ) {
 202                                 // Skip the default * group, seems useless here
 203                                 continue;
 204                         }
 205                         $groupName = User::getGroupName( $ueg );
 206                         $userGroups[] = User::makeGroupLinkHTML( $ueg, $groupName );
 207
 208                         $memberName = User::getGroupMember( $ueg, $userName );
 209                         $userMembers[] = User::makeGroupLinkHTML( $ueg, $memberName );
 210                 }
 211                 asort( $userGroups );
 212                 asort( $userMembers );
 213
 214                 $lang = $context->getLanguage();
 215
 216                 $defaultPreferences['usergroups'] = array(
 217                         'type' => 'info',
 218                         'label' => $context->msg( 'prefs-memberingroups' )->numParams(
 219                                 count( $userGroups ) )->params( $userName )->parse(),
 220                         'default' => $context->msg( 'prefs-memberingroups-type',
 221                                 $lang->commaList( $userGroups ),
 222                                 $lang->commaList( $userMembers )
 223                         )->plain(),
 224                         'raw' => true,
 225                         'section' => 'personal/info',
 226                 );
 227
 228                 $defaultPreferences['editcount'] = array(
 229                         'type' => 'info',
 230                         'label-message' => 'prefs-edits',
 231                         'default' => $lang->formatNum( $user->getEditCount() ),
 232                         'section' => 'personal/info',
 233                 );
 234
 235                 if ( $user->getRegistration() ) {
 236                         $displayUser = $context->getUser();
 237                         $userRegistration = $user->getRegistration();
 238                         $defaultPreferences['registrationdate'] = array(
 239                                 'type' => 'info',
 240                                 'label-message' => 'prefs-registration',
 241                                 'default' => $context->msg(
 242                                         'prefs-registration-date-time',
 243                                         $lang->userTimeAndDate( $userRegistration, $displayUser ),
 244                                         $lang->userDate( $userRegistration, $displayUser ),
 245                                         $lang->userTime( $userRegistration, $displayUser )
 246                                 )->parse(),
 247                                 'section' => 'personal/info',
 248                         );
 249                 }
 250
 251                 // Actually changeable stuff
 252                 $defaultPreferences['realname'] = array(
 253                         'type' => $wgAuth->allowPropChange( 'realname' ) ? 'text' : 'info',
 254                         'default' => $user->getRealName(),
 255                         'section' => 'personal/info',
 256                         'label-message' => 'yourrealname',
 257                         'help-message' => 'prefs-help-realname',
 258                 );
 259
 260                 $defaultPreferences['gender'] = array(
 261                         'type' => 'select',
 262                         'section' => 'personal/info',
 263                         'options' => array(
 264                                 $context->msg( 'gender-male' )->text() => 'male',
 265                                 $context->msg( 'gender-female' )->text() => 'female',
 266                                 $context->msg( 'gender-unknown' )->text() => 'unknown',
 267                         ),
 268                         'label-message' => 'yourgender',
 269                         'help-message' => 'prefs-help-gender',
 270                 );
 271
 272                 if ( $wgAuth->allowPasswordChange() ) {
 273                         $link = Linker::link( SpecialPage::getTitleFor( 'ChangePassword' ),
 274                                 $context->msg( 'prefs-resetpass' )->escaped(), array(),
 275                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ) );
 276
 277                         $defaultPreferences['password'] = array(
 278                                 'type' => 'info',
 279                                 'raw' => true,
 280                                 'default' => $link,
 281                                 'label-message' => 'yourpassword',
 282                                 'section' => 'personal/info',
 283                         );
 284                 }
 285                 if ( $wgCookieExpiration > 0 ) {
 286                         $defaultPreferences['rememberpassword'] = array(
 287                                 'type' => 'toggle',
 288                                 'label' => $context->msg( 'tog-rememberpassword' )->numParams(
 289                                         ceil( $wgCookieExpiration / ( 3600 * 24 ) ) )->text(),
 290                                 'section' => 'personal/info',
 291                         );
 292                 }
 293
 294                 // Language
 295                 $languages = Language::fetchLanguageNames( null, 'mw' );
 296                 if ( !array_key_exists( $wgLanguageCode, $languages ) ) {
 297                         $languages[$wgLanguageCode] = $wgLanguageCode;
 298                 }
 299                 ksort( $languages );
 300
 301                 $options = array();
 302                 foreach ( $languages as $code => $name ) {
 303                         $display = wfBCP47( $code ) . ' - ' . $name;
 304                         $options[$display] = $code;
 305                 }
 306                 $defaultPreferences['language'] = array(
 307                         'type' => 'select',
 308                         'section' => 'personal/i18n',
 309                         'options' => $options,
 310                         'label-message' => 'yourlanguage',
 311                 );
 312
 313                 /* see if there are multiple language variants to choose from*/
 314                 $variantArray = array();
 315                 if ( !$wgDisableLangConversion ) {
 316                         $variants = $wgContLang->getVariants();
 317
 318                         foreach ( $variants as $v ) {
 319                                 $v = str_replace( '_', '-', strtolower( $v ) );
 320                                 $variantArray[$v] = $wgContLang->getVariantname( $v, false );
 321                         }
 322
 323                         $options = array();
 324                         foreach ( $variantArray as $code => $name ) {
 325                                 $display = wfBCP47( $code ) . ' - ' . $name;
 326                                 $options[$display] = $code;
 327                         }
 328
 329                         if ( count( $variantArray ) > 1 ) {
 330                                 $defaultPreferences['variant'] = array(
 331                                         'label-message' => 'yourvariant',
 332                                         'type' => 'select',
 333                                         'options' => $options,
 334                                         'section' => 'personal/i18n',
 335                                         'help-message' => 'prefs-help-variant',
 336                                 );
 337                         }
 338                 }
 339
 340                 if ( count( $variantArray ) > 1 && !$wgDisableLangConversion && !$wgDisableTitleConversion ) {
 341                         $defaultPreferences['noconvertlink'] =
 342                                 array(
 343                                 'type' => 'toggle',
 344                                 'section' => 'personal/i18n',
 345                                 'label-message' => 'tog-noconvertlink',
 346                         );
 347                 }
 348
 349                 // show a preview of the old signature first
 350                 $oldsigWikiText = $wgParser->preSaveTransform( "~~~", $context->getTitle(), $user, ParserOptions::newFromContext( $context ) );
 351                 $oldsigHTML = $context->getOutput()->parseInline( $oldsigWikiText, true, true );
 352                 $defaultPreferences['oldsig'] = array(
 353                         'type' => 'info',
 354                         'raw' => true,
 355                         'label-message' => 'tog-oldsig',
 356                         'default' => $oldsigHTML,
 357                         'section' => 'personal/signature',
 358                 );
 359                 $defaultPreferences['nickname'] = array(
 360                         'type' => $wgAuth->allowPropChange( 'nickname' ) ? 'text' : 'info',
 361                         'maxlength' => $wgMaxSigChars,
 362                         'label-message' => 'yournick',
 363                         'validation-callback' => array( 'Preferences', 'validateSignature' ),
 364                         'section' => 'personal/signature',
 365                         'filter-callback' => array( 'Preferences', 'cleanSignature' ),
 366                 );
 367                 $defaultPreferences['fancysig'] = array(
 368                         'type' => 'toggle',
 369                         'label-message' => 'tog-fancysig',
 370                         'help-message' => 'prefs-help-signature', // show general help about signature at the bottom of the section
 371                         'section' => 'personal/signature'
 372                 );
 373
 374                 ## Email stuff
 375
 376                 if ( $wgEnableEmail ) {
 377                         $helpMessages[] = $wgEmailConfirmToEdit
 378                                         ? 'prefs-help-email-required'
 379                                         : 'prefs-help-email';
 380
 381                         if( $wgEnableUserEmail ) {
 382                                 // additional messages when users can send email to each other
 383                                 $helpMessages[] = 'prefs-help-email-others';
 384                         }
 385
 386                         $link = Linker::link(
 387                                 SpecialPage::getTitleFor( 'ChangeEmail' ),
 388                                 $context->msg( $user->getEmail() ? 'prefs-changeemail' : 'prefs-setemail' )->escaped(),
 389                                 array(),
 390                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ) );
 391
 392                         $emailAddress = $user->getEmail() ? htmlspecialchars( $user->getEmail() ) : '';
 393                         if ( $wgAuth->allowPropChange( 'emailaddress' ) ) {
 394                                 $emailAddress .= $emailAddress == '' ? $link : (
 395                                         $context->msg( 'word-separator' )->plain()
 396                                         . $context->msg( 'parentheses' )->rawParams( $link )->plain()
 397                                 );
 398                         }
 399
 400                         $defaultPreferences['emailaddress'] = array(
 401                                 'type' => 'info',
 402                                 'raw' => true,
 403                                 'default' => $emailAddress,
 404                                 'label-message' => 'youremail',
 405                                 'section' => 'personal/email',
 406                                 'help-messages' => $helpMessages,
 407                                 # 'cssclass' chosen below
 408                         );
 409
 410                         $disableEmailPrefs = false;
 411
 412                         $emailauthenticationclass = 'mw-email-not-authenticated';
 413                         if ( $wgEmailAuthentication ) {
 414                                 if ( $user->getEmail() ) {
 415                                         if ( $user->getEmailAuthenticationTimestamp() ) {
 416                                                 // date and time are separate parameters to facilitate localisation.
 417                                                 // $time is kept for backward compat reasons.
 418                                                 // 'emailauthenticated' is also used in SpecialConfirmemail.php
 419                                                 $displayUser = $context->getUser();
 420                                                 $emailTimestamp = $user->getEmailAuthenticationTimestamp();
 421                                                 $time = $lang->userTimeAndDate( $emailTimestamp, $displayUser );
 422                                                 $d = $lang->userDate( $emailTimestamp, $displayUser );
 423                                                 $t = $lang->userTime( $emailTimestamp, $displayUser );
 424                                                 $emailauthenticated = $context->msg( 'emailauthenticated',
 425                                                         $time, $d, $t )->parse() . '<br />';
 426                                                 $disableEmailPrefs = false;
 427                                                 $emailauthenticationclass = 'mw-email-authenticated';
 428                                         } else {
 429                                                 $disableEmailPrefs = true;
 430                                                 $emailauthenticated = $context->msg( 'emailnotauthenticated' )->parse() . '<br />' .
 431                                                         Linker::linkKnown(
 432                                                                 SpecialPage::getTitleFor( 'Confirmemail' ),
 433                                                                 $context->msg( 'emailconfirmlink' )->escaped()
 434                                                         ) . '<br />';
 435                                                 $emailauthenticationclass = "mw-email-not-authenticated";
 436                                         }
 437                                 } else {
 438                                         $disableEmailPrefs = true;
 439                                         $emailauthenticated = $context->msg( 'noemailprefs' )->escaped();
 440                                         $emailauthenticationclass = 'mw-email-none';
 441                                 }
 442
 443                                 $defaultPreferences['emailauthentication'] = array(
 444                                         'type' => 'info',
 445                                         'raw' => true,
 446                                         'section' => 'personal/email',
 447                                         'label-message' => 'prefs-emailconfirm-label',
 448                                         'default' => $emailauthenticated,
 449                                         # Apply the same CSS class used on the input to the message:
 450                                         'cssclass' => $emailauthenticationclass,
 451                                 );
 452                         }
 453                         $defaultPreferences['emailaddress']['cssclass'] = $emailauthenticationclass;
 454
 455                         if ( $wgEnableUserEmail && $user->isAllowed( 'sendemail' ) ) {
 456                                 $defaultPreferences['disablemail'] = array(
 457                                         'type' => 'toggle',
 458                                         'invert' => true,
 459                                         'section' => 'personal/email',
 460                                         'label-message' => 'allowemail',
 461                                         'disabled' => $disableEmailPrefs,
 462                                 );
 463                                 $defaultPreferences['ccmeonemails'] = array(
 464                                         'type' => 'toggle',
 465                                         'section' => 'personal/email',
 466                                         'label-message' => 'tog-ccmeonemails',
 467                                         'disabled' => $disableEmailPrefs,
 468                                 );
 469                         }
 470
 471                         if ( $wgEnotifWatchlist ) {
 472                                 $defaultPreferences['enotifwatchlistpages'] = array(
 473                                         'type' => 'toggle',
 474                                         'section' => 'personal/email',
 475                                         'label-message' => 'tog-enotifwatchlistpages',
 476                                         'disabled' => $disableEmailPrefs,
 477                                 );
 478                         }
 479                         if ( $wgEnotifUserTalk ) {
 480                                 $defaultPreferences['enotifusertalkpages'] = array(
 481                                         'type' => 'toggle',
 482                                         'section' => 'personal/email',
 483                                         'label-message' => 'tog-enotifusertalkpages',
 484                                         'disabled' => $disableEmailPrefs,
 485                                 );
 486                         }
 487                         if ( $wgEnotifUserTalk || $wgEnotifWatchlist ) {
 488                                 $defaultPreferences['enotifminoredits'] = array(
 489                                         'type' => 'toggle',
 490                                         'section' => 'personal/email',
 491                                         'label-message' => 'tog-enotifminoredits',
 492                                         'disabled' => $disableEmailPrefs,
 493                                 );
 494
 495                                 if ( $wgEnotifRevealEditorAddress ) {
 496                                         $defaultPreferences['enotifrevealaddr'] = array(
 497                                                 'type' => 'toggle',
 498                                                 'section' => 'personal/email',
 499                                                 'label-message' => 'tog-enotifrevealaddr',
 500                                                 'disabled' => $disableEmailPrefs,
 501                                         );
 502                                 }
 503                         }
 504                 }
 505         }
 506
 507         /**
 508          * @param $user User
 509          * @param $context IContextSource
 510          * @param $defaultPreferences
 511          * @return void
 512          */
 513         static function skinPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 514                 ## Skin #####################################
 515                 global $wgAllowUserCss, $wgAllowUserJs;
 516
 517                 $defaultPreferences['skin'] = array(
 518                         'type' => 'radio',
 519                         'options' => self::generateSkinOptions( $user, $context ),
 520                         'label' => '&#160;',
 521                         'section' => 'rendering/skin',
 522                 );
 523
 524                 # Create links to user CSS/JS pages for all skins
 525                 # This code is basically copied from generateSkinOptions().  It'd
 526                 # be nice to somehow merge this back in there to avoid redundancy.
 527                 if ( $wgAllowUserCss || $wgAllowUserJs ) {
 528                         $linkTools = array();
 529                         $userName = $user->getName();
 530
 531                         if ( $wgAllowUserCss ) {
 532                                 $cssPage = Title::makeTitleSafe( NS_USER, $userName . '/common.css' );
 533                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
 534                         }
 535
 536                         if ( $wgAllowUserJs ) {
 537                                 $jsPage = Title::makeTitleSafe( NS_USER, $userName . '/common.js' );
 538                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
 539                         }
 540
 541                         $defaultPreferences['commoncssjs'] = array(
 542                                 'type' => 'info',
 543                                 'raw' => true,
 544                                 'default' => $context->getLanguage()->pipeList( $linkTools ),
 545                                 'label-message' => 'prefs-common-css-js',
 546                                 'section' => 'rendering/skin',
 547                         );
 548                 }
 549         }
 550
 551         /**
 552          * @param $user User
 553          * @param $context IContextSource
 554          * @param $defaultPreferences Array
 555          */
 556         static function filesPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 557                 ## Files #####################################
 558                 $defaultPreferences['imagesize'] = array(
 559                         'type' => 'select',
 560                         'options' => self::getImageSizes( $context ),
 561                         'label-message' => 'imagemaxsize',
 562                         'section' => 'rendering/files',
 563                 );
 564                 $defaultPreferences['thumbsize'] = array(
 565                         'type' => 'select',
 566                         'options' => self::getThumbSizes( $context ),
 567                         'label-message' => 'thumbsize',
 568                         'section' => 'rendering/files',
 569                 );
 570         }
 571
 572         /**
 573          * @param $user User
 574          * @param $context IContextSource
 575          * @param $defaultPreferences
 576          * @return void
 577          */
 578         static function datetimePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 579                 ## Date and time #####################################
 580                 $dateOptions = self::getDateOptions( $context );
 581                 if ( $dateOptions ) {
 582                         $defaultPreferences['date'] = array(
 583                                 'type' => 'radio',
 584                                 'options' => $dateOptions,
 585                                 'label' => '&#160;',
 586                                 'section' => 'datetime/dateformat',
 587                         );
 588                 }
 589
 590                 // Info
 591                 $now = wfTimestampNow();
 592                 $lang = $context->getLanguage();
 593                 $nowlocal = Xml::element( 'span', array( 'id' => 'wpLocalTime' ),
 594                         $lang->time( $now, true ) );
 595                 $nowserver = $lang->time( $now, false ) .
 596                         Html::hidden( 'wpServerTime', (int)substr( $now, 8, 2 ) * 60 + (int)substr( $now, 10, 2 ) );
 597
 598                 $defaultPreferences['nowserver'] = array(
 599                         'type' => 'info',
 600                         'raw' => 1,
 601                         'label-message' => 'servertime',
 602                         'default' => $nowserver,
 603                         'section' => 'datetime/timeoffset',
 604                 );
 605
 606                 $defaultPreferences['nowlocal'] = array(
 607                         'type' => 'info',
 608                         'raw' => 1,
 609                         'label-message' => 'localtime',
 610                         'default' => $nowlocal,
 611                         'section' => 'datetime/timeoffset',
 612                 );
 613
 614                 // Grab existing pref.
 615                 $tzOffset = $user->getOption( 'timecorrection' );
 616                 $tz = explode( '|', $tzOffset, 3 );
 617
 618                 $tzOptions = self::getTimezoneOptions( $context );
 619
 620                 $tzSetting = $tzOffset;
 621                 if ( count( $tz ) > 1 && $tz[0] == 'Offset' ) {
 622                         $minDiff = $tz[1];
 623                         $tzSetting = sprintf( '%+03d:%02d', floor( $minDiff / 60 ), abs( $minDiff ) % 60 );
 624                 } elseif ( count( $tz ) > 1 && $tz[0] == 'ZoneInfo' &&
 625                         !in_array( $tzOffset, HTMLFormField::flattenOptions( $tzOptions ) ) )
 626                 {
 627                         # Timezone offset can vary with DST
 628                         $userTZ = timezone_open( $tz[2] );
 629                         if ( $userTZ !== false ) {
 630                                 $minDiff = floor( timezone_offset_get( $userTZ, date_create( 'now' ) ) / 60 );
 631                                 $tzSetting = "ZoneInfo|$minDiff|{$tz[2]}";
 632                         }
 633                 }
 634
 635                 $defaultPreferences['timecorrection'] = array(
 636                         'class' => 'HTMLSelectOrOtherField',
 637                         'label-message' => 'timezonelegend',
 638                         'options' => $tzOptions,
 639                         'default' => $tzSetting,
 640                         'size' => 20,
 641                         'section' => 'datetime/timeoffset',
 642                 );
 643         }
 644
 645         /**
 646          * @param $user User
 647          * @param $context IContextSource
 648          * @param $defaultPreferences Array
 649          */
 650         static function renderingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 651                 ## Page Rendering ##############################
 652                 global $wgAllowUserCssPrefs;
 653                 if ( $wgAllowUserCssPrefs ) {
 654                         $defaultPreferences['underline'] = array(
 655                                 'type' => 'select',
 656                                 'options' => array(
 657                                         $context->msg( 'underline-never' )->text() => 0,
 658                                         $context->msg( 'underline-always' )->text() => 1,
 659                                         $context->msg( 'underline-default' )->text() => 2,
 660                                 ),
 661                                 'label-message' => 'tog-underline',
 662                                 'section' => 'rendering/advancedrendering',
 663                         );
 664                 }
 665
 666                 $stubThresholdValues = array( 50, 100, 500, 1000, 2000, 5000, 10000 );
 667                 $stubThresholdOptions = array( $context->msg( 'stub-threshold-disabled' )->text() => 0 );
 668                 foreach ( $stubThresholdValues as $value ) {
 669                         $stubThresholdOptions[$context->msg( 'size-bytes', $value )->text()] = $value;
 670                 }
 671
 672                 $defaultPreferences['stubthreshold'] = array(
 673                         'type' => 'selectorother',
 674                         'section' => 'rendering/advancedrendering',
 675                         'options' => $stubThresholdOptions,
 676                         'size' => 20,
 677                         'label' => $context->msg( 'stub-threshold' )->text(), // Raw HTML message. Yay?
 678                 );
 679
 680                 if ( $wgAllowUserCssPrefs ) {
 681                         $defaultPreferences['showtoc'] = array(
 682                                 'type' => 'toggle',
 683                                 'section' => 'rendering/advancedrendering',
 684                                 'label-message' => 'tog-showtoc',
 685                         );
 686                 }
 687                 $defaultPreferences['nocache'] = array(
 688                         'type' => 'toggle',
 689                         'label-message' => 'tog-nocache',
 690                         'section' => 'rendering/advancedrendering',
 691                 );
 692                 $defaultPreferences['showhiddencats'] = array(
 693                         'type' => 'toggle',
 694                         'section' => 'rendering/advancedrendering',
 695                         'label-message' => 'tog-showhiddencats'
 696                 );
 697                 $defaultPreferences['showjumplinks'] = array(
 698                         'type' => 'toggle',
 699                         'section' => 'rendering/advancedrendering',
 700                         'label-message' => 'tog-showjumplinks',
 701                 );
 702
 703                 if ( $wgAllowUserCssPrefs ) {
 704                         $defaultPreferences['justify'] = array(
 705                                 'type' => 'toggle',
 706                                 'section' => 'rendering/advancedrendering',
 707                                 'label-message' => 'tog-justify',
 708                         );
 709                 }
 710
 711                 $defaultPreferences['numberheadings'] = array(
 712                         'type' => 'toggle',
 713                         'section' => 'rendering/advancedrendering',
 714                         'label-message' => 'tog-numberheadings',
 715                 );
 716         }
 717
 718         /**
 719          * @param $user User
 720          * @param $context IContextSource
 721          * @param $defaultPreferences Array
 722          */
 723         static function editingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 724                 global $wgAllowUserCssPrefs;
 725
 726                 ## Editing #####################################
 727                 $defaultPreferences['cols'] = array(
 728                         'type' => 'int',
 729                         'label-message' => 'columns',
 730                         'section' => 'editing/textboxsize',
 731                         'min' => 4,
 732                         'max' => 1000,
 733                 );
 734                 $defaultPreferences['rows'] = array(
 735                         'type' => 'int',
 736                         'label-message' => 'rows',
 737                         'section' => 'editing/textboxsize',
 738                         'min' => 4,
 739                         'max' => 1000,
 740                 );
 741
 742                 if ( $wgAllowUserCssPrefs ) {
 743                         $defaultPreferences['editfont'] = array(
 744                                 'type' => 'select',
 745                                 'section' => 'editing/advancedediting',
 746                                 'label-message' => 'editfont-style',
 747                                 'options' => array(
 748                                         $context->msg( 'editfont-default' )->text() => 'default',
 749                                         $context->msg( 'editfont-monospace' )->text() => 'monospace',
 750                                         $context->msg( 'editfont-sansserif' )->text() => 'sans-serif',
 751                                         $context->msg( 'editfont-serif' )->text() => 'serif',
 752                                 )
 753                         );
 754                 }
 755                 $defaultPreferences['previewontop'] = array(
 756                         'type' => 'toggle',
 757                         'section' => 'editing/advancedediting',
 758                         'label-message' => 'tog-previewontop',
 759                 );
 760                 $defaultPreferences['previewonfirst'] = array(
 761                         'type' => 'toggle',
 762                         'section' => 'editing/advancedediting',
 763                         'label-message' => 'tog-previewonfirst',
 764                 );
 765
 766                 if ( $wgAllowUserCssPrefs ) {
 767                         $defaultPreferences['editsection'] = array(
 768                                 'type' => 'toggle',
 769                                 'section' => 'editing/advancedediting',
 770                                 'label-message' => 'tog-editsection',
 771                         );
 772                 }
 773                 $defaultPreferences['editsectiononrightclick'] = array(
 774                         'type' => 'toggle',
 775                         'section' => 'editing/advancedediting',
 776                         'label-message' => 'tog-editsectiononrightclick',
 777                 );
 778                 $defaultPreferences['editondblclick'] = array(
 779                         'type' => 'toggle',
 780                         'section' => 'editing/advancedediting',
 781                         'label-message' => 'tog-editondblclick',
 782                 );
 783                 $defaultPreferences['showtoolbar'] = array(
 784                         'type' => 'toggle',
 785                         'section' => 'editing/advancedediting',
 786                         'label-message' => 'tog-showtoolbar',
 787                 );
 788
 789                 if ( $user->isAllowed( 'minoredit' ) ) {
 790                         $defaultPreferences['minordefault'] = array(
 791                                 'type' => 'toggle',
 792                                 'section' => 'editing/advancedediting',
 793                                 'label-message' => 'tog-minordefault',
 794                         );
 795                 }
 796
 797                 $defaultPreferences['forceeditsummary'] = array(
 798                         'type' => 'toggle',
 799                         'section' => 'editing/advancedediting',
 800                         'label-message' => 'tog-forceeditsummary',
 801                 );
 802
 803                 $defaultPreferences['uselivepreview'] = array(
 804                         'type' => 'toggle',
 805                         'section' => 'editing/advancedediting',
 806                         'label-message' => 'tog-uselivepreview',
 807                 );
 808
 809                 $defaultPreferences['useeditwarning'] = array(
 810                         'type' => 'toggle',
 811                         'section' => 'editing/advancedediting',
 812                         'label-message' => 'tog-useeditwarning',
 813                 );
 814
 815         }
 816
 817         /**
 818          * @param $user User
 819          * @param $context IContextSource
 820          * @param $defaultPreferences Array
 821          */
 822         static function rcPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 823                 global $wgRCMaxAge, $wgRCShowWatchingUsers;
 824
 825                 ## RecentChanges #####################################
 826                 $defaultPreferences['rcdays'] = array(
 827                         'type' => 'float',
 828                         'label-message' => 'recentchangesdays',
 829                         'section' => 'rc/displayrc',
 830                         'min' => 1,
 831                         'max' => ceil( $wgRCMaxAge / ( 3600 * 24 ) ),
 832                         'help' => $context->msg( 'recentchangesdays-max' )->numParams(
 833                                 ceil( $wgRCMaxAge / ( 3600 * 24 ) ) )->text()
 834                 );
 835                 $defaultPreferences['rclimit'] = array(
 836                         'type' => 'int',
 837                         'label-message' => 'recentchangescount',
 838                         'help-message' => 'prefs-help-recentchangescount',
 839                         'section' => 'rc/displayrc',
 840                 );
 841                 $defaultPreferences['usenewrc'] = array(
 842                         'type' => 'toggle',
 843                         'label-message' => 'tog-usenewrc',
 844                         'section' => 'rc/advancedrc',
 845                 );
 846                 $defaultPreferences['hideminor'] = array(
 847                         'type' => 'toggle',
 848                         'label-message' => 'tog-hideminor',
 849                         'section' => 'rc/advancedrc',
 850                 );
 851
 852                 if ( $user->useRCPatrol() ) {
 853                         $defaultPreferences['hidepatrolled'] = array(
 854                                 'type' => 'toggle',
 855                                 'section' => 'rc/advancedrc',
 856                                 'label-message' => 'tog-hidepatrolled',
 857                         );
 858                         $defaultPreferences['newpageshidepatrolled'] = array(
 859                                 'type' => 'toggle',
 860                                 'section' => 'rc/advancedrc',
 861                                 'label-message' => 'tog-newpageshidepatrolled',
 862                         );
 863                 }
 864
 865                 if ( $wgRCShowWatchingUsers ) {
 866                         $defaultPreferences['shownumberswatching'] = array(
 867                                 'type' => 'toggle',
 868                                 'section' => 'rc/advancedrc',
 869                                 'label-message' => 'tog-shownumberswatching',
 870                         );
 871                 }
 872         }
 873
 874         /**
 875          * @param $user User
 876          * @param $context IContextSource
 877          * @param $defaultPreferences
 878          */
 879         static function watchlistPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 880                 global $wgUseRCPatrol, $wgEnableAPI, $wgRCMaxAge;
 881
 882                 $watchlistdaysMax = ceil( $wgRCMaxAge / ( 3600 * 24 ) );
 883
 884                 ## Watchlist #####################################
 885                 $defaultPreferences['watchlistdays'] = array(
 886                         'type' => 'float',
 887                         'min' => 0,
 888                         'max' => $watchlistdaysMax,
 889                         'section' => 'watchlist/displaywatchlist',
 890                         'help' => $context->msg( 'prefs-watchlist-days-max' )->numParams(
 891                                 $watchlistdaysMax )->text(),
 892                         'label-message' => 'prefs-watchlist-days',
 893                 );
 894                 $defaultPreferences['wllimit'] = array(
 895                         'type' => 'int',
 896                         'min' => 0,
 897                         'max' => 1000,
 898                         'label-message' => 'prefs-watchlist-edits',
 899                         'help' => $context->msg( 'prefs-watchlist-edits-max' )->escaped(),
 900                         'section' => 'watchlist/displaywatchlist',
 901                 );
 902                 $defaultPreferences['extendwatchlist'] = array(
 903                         'type' => 'toggle',
 904                         'section' => 'watchlist/advancedwatchlist',
 905                         'label-message' => 'tog-extendwatchlist',
 906                 );
 907                 $defaultPreferences['watchlisthideminor'] = array(
 908                         'type' => 'toggle',
 909                         'section' => 'watchlist/advancedwatchlist',
 910                         'label-message' => 'tog-watchlisthideminor',
 911                 );
 912                 $defaultPreferences['watchlisthidebots'] = array(
 913                         'type' => 'toggle',
 914                         'section' => 'watchlist/advancedwatchlist',
 915                         'label-message' => 'tog-watchlisthidebots',
 916                 );
 917                 $defaultPreferences['watchlisthideown'] = array(
 918                         'type' => 'toggle',
 919                         'section' => 'watchlist/advancedwatchlist',
 920                         'label-message' => 'tog-watchlisthideown',
 921                 );
 922                 $defaultPreferences['watchlisthideanons'] = array(
 923                         'type' => 'toggle',
 924                         'section' => 'watchlist/advancedwatchlist',
 925                         'label-message' => 'tog-watchlisthideanons',
 926                 );
 927                 $defaultPreferences['watchlisthideliu'] = array(
 928                         'type' => 'toggle',
 929                         'section' => 'watchlist/advancedwatchlist',
 930                         'label-message' => 'tog-watchlisthideliu',
 931                 );
 932
 933                 if ( $wgUseRCPatrol ) {
 934                         $defaultPreferences['watchlisthidepatrolled'] = array(
 935                                 'type' => 'toggle',
 936                                 'section' => 'watchlist/advancedwatchlist',
 937                                 'label-message' => 'tog-watchlisthidepatrolled',
 938                         );
 939                 }
 940
 941                 if ( $wgEnableAPI ) {
 942                         # Some random gibberish as a proposed default
 943                         // @todo Fixme: this should use CryptRand but we may not want to read urandom on every view
 944                         $hash = sha1( mt_rand() . microtime( true ) );
 945
 946                         $defaultPreferences['watchlisttoken'] = array(
 947                                 'type' => 'text',
 948                                 'section' => 'watchlist/advancedwatchlist',
 949                                 'label-message' => 'prefs-watchlist-token',
 950                                 'help' => $context->msg( 'prefs-help-watchlist-token', $hash )->escaped()
 951                         );
 952                 }
 953
 954                 $watchTypes = array(
 955                         'edit' => 'watchdefault',
 956                         'move' => 'watchmoves',
 957                         'delete' => 'watchdeletion'
 958                 );
 959
 960                 // Kinda hacky
 961                 if ( $user->isAllowed( 'createpage' ) || $user->isAllowed( 'createtalk' ) ) {
 962                         $watchTypes['read'] = 'watchcreations';
 963                 }
 964
 965                 foreach ( $watchTypes as $action => $pref ) {
 966                         if ( $user->isAllowed( $action ) ) {
 967                                 $defaultPreferences[$pref] = array(
 968                                         'type' => 'toggle',
 969                                         'section' => 'watchlist/advancedwatchlist',
 970                                         'label-message' => "tog-$pref",
 971                                 );
 972                         }
 973                 }
 974         }
 975
 976         /**
 977          * @param $user User
 978          * @param $context IContextSource
 979          * @param $defaultPreferences Array
 980          */
 981         static function searchPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 982                 global $wgContLang, $wgVectorUseSimpleSearch;
 983
 984                 ## Search #####################################
 985                 $defaultPreferences['searchlimit'] = array(
 986                         'type' => 'int',
 987                         'label-message' => 'resultsperpage',
 988                         'section' => 'searchoptions/displaysearchoptions',
 989                         'min' => 0,
 990                 );
 991
 992                 if ( $wgVectorUseSimpleSearch ) {
 993                         $defaultPreferences['vector-simplesearch'] = array(
 994                                 'type' => 'toggle',
 995                                 'label-message' => 'vector-simplesearch-preference',
 996                                 'section' => 'searchoptions/displaysearchoptions',
 997                         );
 998                 }
 999
1000                 $defaultPreferences['disablesuggest'] = array(
1001                         'type' => 'toggle',
1002                         'label-message' => 'mwsuggest-disable',
1003                         'section' => 'searchoptions/displaysearchoptions',
1004                 );
1005
1006                 $defaultPreferences['searcheverything'] = array(
1007                         'type' => 'toggle',
1008                         'label-message' => 'searcheverything-enable',
1009                         'section' => 'searchoptions/advancedsearchoptions',
1010                 );
1011
1012                 $nsOptions = $wgContLang->getFormattedNamespaces();
1013                 $nsOptions[0] = $context->msg( 'blanknamespace' )->text();
1014                 foreach ( $nsOptions as $ns => $name ) {
1015                         if ( $ns < 0 )
1016                                 unset( $nsOptions[$ns] );
1017                 }
1018
1019                 $defaultPreferences['searchnamespaces'] = array(
1020                         'type' => 'multiselect',
1021                         'label-message' => 'defaultns',
1022                         'options' => array_flip( $nsOptions ),
1023                         'section' => 'searchoptions/advancedsearchoptions',
1024                         'prefix' => 'searchNs',
1025                 );
1026         }
1027
1028         /**
1029          * @param $user User
1030          * @param $context IContextSource
1031          * @param $defaultPreferences Array
1032          */
1033         static function miscPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1034                 global $wgContLang;
1035
1036                 ## Misc #####################################
1037                 $defaultPreferences['diffonly'] = array(
1038                         'type' => 'toggle',
1039                         'section' => 'misc/diffs',
1040                         'label-message' => 'tog-diffonly',
1041                 );
1042                 $defaultPreferences['norollbackdiff'] = array(
1043                         'type' => 'toggle',
1044                         'section' => 'misc/diffs',
1045                         'label-message' => 'tog-norollbackdiff',
1046                 );
1047
1048                 // Stuff from Language::getExtraUserToggles()
1049                 $toggles = $wgContLang->getExtraUserToggles();
1050
1051                 foreach ( $toggles as $toggle ) {
1052                         $defaultPreferences[$toggle] = array(
1053                                 'type' => 'toggle',
1054                                 'section' => 'personal/i18n',
1055                                 'label-message' => "tog-$toggle",
1056                         );
1057                 }
1058         }
1059
1060         /**
1061          * @param $user User The User object
1062          * @param $context IContextSource
1063          * @return Array: text/links to display as key; $skinkey as value
1064          */
1065         static function generateSkinOptions( $user, IContextSource $context ) {
1066                 global $wgDefaultSkin, $wgAllowUserCss, $wgAllowUserJs;
1067                 $ret = array();
1068
1069                 $mptitle = Title::newMainPage();
1070                 $previewtext = $context->msg( 'skin-preview' )->text();
1071
1072                 # Only show members of Skin::getSkinNames() rather than
1073                 # $skinNames (skins is all skin names from Language.php)
1074                 $validSkinNames = Skin::getUsableSkins();
1075
1076                 # Sort by UI skin name. First though need to update validSkinNames as sometimes
1077                 # the skinkey & UI skinname differ (e.g. "standard" skinkey is "Classic" in the UI).
1078                 foreach ( $validSkinNames as $skinkey => &$skinname ) {
1079                         $msg = $context->msg( "skinname-{$skinkey}" );
1080                         if ( $msg->exists() ) {
1081                                 $skinname = htmlspecialchars( $msg->text() );
1082                         }
1083                 }
1084                 asort( $validSkinNames );
1085
1086                 foreach ( $validSkinNames as $skinkey => $sn ) {
1087                         $linkTools = array();
1088
1089                         # Mark the default skin
1090                         if ( $skinkey == $wgDefaultSkin ) {
1091                                 $linkTools[] = $context->msg( 'default' )->escaped();
1092                         }
1093
1094                         # Create preview link
1095                         $mplink = htmlspecialchars( $mptitle->getLocalURL( "useskin=$skinkey" ) );
1096                         $linkTools[] = "<a target='_blank' href=\"$mplink\">$previewtext</a>";
1097
1098                         # Create links to user CSS/JS pages
1099                         if ( $wgAllowUserCss ) {
1100                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.css' );
1101                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
1102                         }
1103
1104                         if ( $wgAllowUserJs ) {
1105                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.js' );
1106                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
1107                         }
1108
1109                         $display = $sn . ' ' . $context->msg( 'parentheses', $context->getLanguage()->pipeList( $linkTools ) )->text();
1110                         $ret[$display] = $skinkey;
1111                 }
1112
1113                 return $ret;
1114         }
1115
1116         /**
1117          * @param $context IContextSource
1118          * @return array
1119          */
1120         static function getDateOptions( IContextSource $context ) {
1121                 $lang = $context->getLanguage();
1122                 $dateopts = $lang->getDatePreferences();
1123
1124                 $ret = array();
1125
1126                 if ( $dateopts ) {
1127                         if ( !in_array( 'default', $dateopts ) ) {
1128                                 $dateopts[] = 'default'; // Make sure default is always valid
1129                                                                                 // Bug 19237
1130                         }
1131
1132                         // KLUGE: site default might not be valid for user language
1133                         global $wgDefaultUserOptions;
1134                         if ( !in_array( $wgDefaultUserOptions['date'], $dateopts ) ) {
1135                                 $wgDefaultUserOptions['date'] = 'default';
1136                         }
1137
1138                         $epoch = wfTimestampNow();
1139                         foreach ( $dateopts as $key ) {
1140                                 if ( $key == 'default' ) {
1141                                         $formatted = $context->msg( 'datedefault' )->escaped();
1142                                 } else {
1143                                         $formatted = htmlspecialchars( $lang->timeanddate( $epoch, false, $key ) );
1144                                 }
1145                                 $ret[$formatted] = $key;
1146                         }
1147                 }
1148                 return $ret;
1149         }
1150
1151         /**
1152          * @param $context IContextSource
1153          * @return array
1154          */
1155         static function getImageSizes( IContextSource $context ) {
1156                 global $wgImageLimits;
1157
1158                 $ret = array();
1159                 $pixels = $context->msg( 'unit-pixel' )->text();
1160
1161                 foreach ( $wgImageLimits as $index => $limits ) {
1162                         $display = "{$limits[0]}×{$limits[1]}" . $pixels;
1163                         $ret[$display] = $index;
1164                 }
1165
1166                 return $ret;
1167         }
1168
1169         /**
1170          * @param $context IContextSource
1171          * @return array
1172          */
1173         static function getThumbSizes( IContextSource $context ) {
1174                 global $wgThumbLimits;
1175
1176                 $ret = array();
1177                 $pixels = $context->msg( 'unit-pixel' )->text();
1178
1179                 foreach ( $wgThumbLimits as $index => $size ) {
1180                         $display = $size . $pixels;
1181                         $ret[$display] = $index;
1182                 }
1183
1184                 return $ret;
1185         }
1186
1187         /**
1188          * @param $signature string
1189          * @param $alldata array
1190          * @param $form HTMLForm
1191          * @return bool|string
1192          */
1193         static function validateSignature( $signature, $alldata, $form ) {
1194                 global $wgParser, $wgMaxSigChars;
1195                 if ( mb_strlen( $signature ) > $wgMaxSigChars ) {
1196                         return Xml::element( 'span', array( 'class' => 'error' ),
1197                                 $form->msg( 'badsiglength' )->numParams( $wgMaxSigChars )->text() );
1198                 } elseif ( isset( $alldata['fancysig'] ) &&
1199                                 $alldata['fancysig'] &&
1200                                 false === $wgParser->validateSig( $signature ) ) {
1201                         return Xml::element( 'span', array( 'class' => 'error' ), $form->msg( 'badsig' )->text() );
1202                 } else {
1203                         return true;
1204                 }
1205         }
1206
1207         /**
1208          * @param $signature string
1209          * @param $alldata array
1210          * @param $form HTMLForm
1211          * @return string
1212          */
1213         static function cleanSignature( $signature, $alldata, $form ) {
1214                 if ( isset( $alldata['fancysig'] ) && $alldata['fancysig'] ) {
1215                         global $wgParser;
1216                         $signature = $wgParser->cleanSig( $signature );
1217                 } else {
1218                         // When no fancy sig used, make sure ~{3,5} get removed.
1219                         $signature = Parser::cleanSigInSig( $signature );
1220                 }
1221
1222                 return $signature;
1223         }
1224
1225         /**
1226          * @param $user User
1227          * @param $context IContextSource
1228          * @param $formClass string
1229          * @param array $remove array of items to remove
1230          * @return HtmlForm
1231          */
1232         static function getFormObject( $user, IContextSource $context, $formClass = 'PreferencesForm', array $remove = array() ) {
1233                 $formDescriptor = Preferences::getPreferences( $user, $context );
1234                 if ( count( $remove ) ) {
1235                         $removeKeys = array_flip( $remove );
1236                         $formDescriptor = array_diff_key( $formDescriptor, $removeKeys );
1237                 }
1238
1239                 // Remove type=api preferences. They are not intended for rendering in the form.
1240                 foreach ( $formDescriptor as $name => $info ) {
1241                         if ( isset( $info['type'] ) && $info['type'] === 'api' ) {
1242                                 unset( $formDescriptor[$name] );
1243                         }
1244                 }
1245
1246                 /**
1247                  * @var $htmlForm PreferencesForm
1248                  */
1249                 $htmlForm = new $formClass( $formDescriptor, $context, 'prefs' );
1250
1251                 $htmlForm->setModifiedUser( $user );
1252                 $htmlForm->setId( 'mw-prefs-form' );
1253                 $htmlForm->setSubmitText( $context->msg( 'saveprefs' )->text() );
1254                 # Used message keys: 'accesskey-preferences-save', 'tooltip-preferences-save'
1255                 $htmlForm->setSubmitTooltip( 'preferences-save' );
1256                 $htmlForm->setSubmitID( 'prefsubmit' );
1257                 $htmlForm->setSubmitCallback( array( 'Preferences', 'tryFormSubmit' ) );
1258
1259                 return $htmlForm;
1260         }
1261
1262         /**
1263          * @param $context IContextSource
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          * Handle the form submission if everything validated properly
1369          *
1370          * @param $formData
1371          * @param $form PreferencesForm
1372          * @param $entryPoint string
1373          * @return bool|Status|string
1374          */
1375         static function tryFormSubmit( $formData, $form, $entryPoint = 'internal' ) {
1376                 global $wgHiddenPrefs, $wgAuth;
1377
1378                 $user = $form->getModifiedUser();
1379                 $result = true;
1380
1381                 // Filter input
1382                 foreach ( array_keys( $formData ) as $name ) {
1383                         if ( isset( self::$saveFilters[$name] ) ) {
1384                                 $formData[$name] =
1385                                         call_user_func( self::$saveFilters[$name], $formData[$name], $formData );
1386                         }
1387                 }
1388
1389                 // Stuff that shouldn't be saved as a preference.
1390                 $saveBlacklist = array(
1391                         'realname',
1392                         'emailaddress',
1393                 );
1394
1395                 // Fortunately, the realname field is MUCH simpler
1396                 if ( !in_array( 'realname', $wgHiddenPrefs ) ) {
1397                         $realName = $formData['realname'];
1398                         $user->setRealName( $realName );
1399                 }
1400
1401                 foreach ( $saveBlacklist as $b ) {
1402                         unset( $formData[$b] );
1403                 }
1404
1405                 # If users have saved a value for a preference which has subsequently been disabled
1406                 # via $wgHiddenPrefs, we don't want to destroy that setting in case the preference
1407                 # is subsequently re-enabled
1408                 # TODO: maintenance script to actually delete these
1409                 foreach( $wgHiddenPrefs as $pref ) {
1410                         # If the user has not set a non-default value here, the default will be returned
1411                         # and subsequently discarded
1412                         $formData[$pref] = $user->getOption( $pref, null, true );
1413                 }
1414
1415                 // Keep old preferences from interfering due to back-compat code, etc.
1416                 $user->resetOptions( 'unused', $form->getContext() );
1417
1418                 foreach ( $formData as $key => $value ) {
1419                         $user->setOption( $key, $value );
1420                 }
1421
1422                 $user->saveSettings();
1423
1424                 $wgAuth->updateExternalDB( $user );
1425
1426                 return $result;
1427         }
1428
1429         /**
1430          * @param $formData
1431          * @param $form PreferencesForm
1432          * @return Status
1433          */
1434         public static function tryUISubmit( $formData, $form ) {
1435                 $res = self::tryFormSubmit( $formData, $form, 'ui' );
1436
1437                 if ( $res ) {
1438                         $urlOptions = array( 'success' => 1 );
1439
1440                         if ( $res === 'eauth' ) {
1441                                 $urlOptions['eauth'] = 1;
1442                         }
1443
1444                         $urlOptions += $form->getExtraSuccessRedirectParameters();
1445
1446                         $url = $form->getTitle()->getFullURL( $urlOptions );
1447
1448                         $form->getContext()->getOutput()->redirect( $url );
1449                 }
1450
1451                 return Status::newGood();
1452         }
1453
1454         /**
1455          * Try to set a user's email address.
1456          * This does *not* try to validate the address.
1457          * Caller is responsible for checking $wgAuth.
1458          *
1459          * @deprecated in 1.20; use User::setEmailWithConfirmation() instead.
1460          * @param $user User
1461          * @param string $newaddr New email address
1462          * @return Array (true on success or Status on failure, info string)
1463          */
1464         public static function trySetUserEmail( User $user, $newaddr ) {
1465                 wfDeprecated( __METHOD__, '1.20' );
1466
1467                 $result = $user->setEmailWithConfirmation( $newaddr );
1468                 if ( $result->isGood() ) {
1469                         return array( true, $result->value );
1470                 } else {
1471                         return array( $result, 'mailerror' );
1472                 }
1473         }
1474
1475         /**
1476          * @deprecated in 1.19; will be removed in 1.20.
1477          * @param $user User
1478          * @return array
1479          */
1480         public static function loadOldSearchNs( $user ) {
1481                 wfDeprecated( __METHOD__, '1.19' );
1482
1483                 $searchableNamespaces = SearchEngine::searchableNamespaces();
1484                 // Back compat with old format
1485                 $arr = array();
1486
1487                 foreach ( $searchableNamespaces as $ns => $name ) {
1488                         if ( $user->getOption( 'searchNs' . $ns ) ) {
1489                                 $arr[] = $ns;
1490                         }
1491                 }
1492
1493                 return $arr;
1494         }
1495 }
1496
1497 /** Some tweaks to allow js prefs to work */
1498 class PreferencesForm extends HTMLForm {
1499         // Override default value from HTMLForm
1500         protected $mSubSectionBeforeFields = false;
1501
1502         private $modifiedUser;
1503
1504         /**
1505          * @param $user User
1506          */
1507         public function setModifiedUser( $user ) {
1508                 $this->modifiedUser = $user;
1509         }
1510
1511         /**
1512          * @return User
1513          */
1514         public function getModifiedUser() {
1515                 if ( $this->modifiedUser === null ) {
1516                         return $this->getUser();
1517                 } else {
1518                         return $this->modifiedUser;
1519                 }
1520         }
1521
1522         /**
1523          * Get extra parameters for the query string when redirecting after
1524          * successful save.
1525          *
1526          * @return array()
1527          */
1528         public function getExtraSuccessRedirectParameters() {
1529                 return array();
1530         }
1531
1532         /**
1533          * @param $html string
1534          * @return String
1535          */
1536         function wrapForm( $html ) {
1537                 $html = Xml::tags( 'div', array( 'id' => 'preferences' ), $html );
1538
1539                 return parent::wrapForm( $html );
1540         }
1541
1542         /**
1543          * @return String
1544          */
1545         function getButtons() {
1546                 $html = parent::getButtons();
1547
1548                 $t = SpecialPage::getTitleFor( 'Preferences', 'reset' );
1549
1550                 $html .= "\n" . Linker::link( $t, $this->msg( 'restoreprefs' )->escaped() );
1551
1552                 $html = Xml::tags( 'div', array( 'class' => 'mw-prefs-buttons' ), $html );
1553
1554                 return $html;
1555         }
1556
1557         /**
1558          * @param $data array
1559          * @return array
1560          */
1561         function filterDataForSubmit( $data ) {
1562                 // Support for separating multi-option preferences into multiple preferences
1563                 // Due to lack of array support.
1564                 foreach ( $this->mFlatFields as $fieldname => $field ) {
1565                         $info = $field->mParams;
1566
1567                         if ( $field instanceof HTMLMultiSelectField ) {
1568                                 $options = HTMLFormField::flattenOptions( $info['options'] );
1569                                 $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $fieldname;
1570
1571                                 foreach ( $options as $opt ) {
1572                                         $data["$prefix$opt"] = in_array( $opt, $data[$fieldname] );
1573                                 }
1574
1575                                 unset( $data[$fieldname] );
1576
1577                         } elseif ( $field instanceof HTMLCheckMatrix ) {
1578                                 $columns = HTMLFormField::flattenOptions( $info['columns'] );
1579                                 $rows = HTMLFormField::flattenOptions( $info['rows'] );
1580                                 $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $fieldname;
1581                                 foreach ( $columns as $column ) {
1582                                         foreach ( $rows as $row ) {
1583                                                 // Make sure option hasn't been removed
1584                                                 if ( !isset( $info['remove-options'] )
1585                                                         || !in_array( "$column-$row", $info['remove-options'] ) )
1586                                                 {
1587                                                         $data["$prefix-$column-$row"] = in_array( "$column-$row", $data[$fieldname] );
1588                                                 }
1589                                         }
1590                                 }
1591
1592                                 unset( $data[$fieldname] );
1593                         }
1594                 }
1595
1596                 return $data;
1597         }
1598
1599         /**
1600          * Get the whole body of the form.
1601          * @return string
1602          */
1603         function getBody() {
1604                 return $this->displaySection( $this->mFieldTree, '', 'mw-prefsection-' );
1605         }
1606
1607         /**
1608          * Get the "<legend>" for a given section key. Normally this is the
1609          * prefs-$key message but we'll allow extensions to override it.
1610          * @param $key string
1611          * @return string
1612          */
1613         function getLegend( $key ) {
1614                 $legend = parent::getLegend( $key );
1615                 wfRunHooks( 'PreferencesGetLegend', array( $this, $key, &$legend ) );
1616                 return $legend;
1617         }
1618 }