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                 ## Make sure that form fields have their parent set. See bug 41337.
  94                 $dummyForm = new HTMLForm( array(), $context );
  95
  96                 ## Prod in defaults from the user
  97                 foreach ( $defaultPreferences as $name => &$info ) {
  98                         $prefFromUser = self::getOptionFromUser( $name, $info, $user );
  99                         $field = HTMLForm::loadInputFromParameters( $name, $info ); // For validation
 100                         $field->mParent = $dummyForm;
 101                         $defaultOptions = User::getDefaultOptions();
 102                         $globalDefault = isset( $defaultOptions[$name] )
 103                                 ? $defaultOptions[$name]
 104                                 : null;
 105
 106                         // If it validates, set it as the default
 107                         if ( isset( $info['default'] ) ) {
 108                                 // Already set, no problem
 109                                 continue;
 110                         } elseif ( !is_null( $prefFromUser ) && // Make sure we're not just pulling nothing
 111                                         $field->validate( $prefFromUser, $user->getOptions() ) === true ) {
 112                                 $info['default'] = $prefFromUser;
 113                         } elseif ( $field->validate( $globalDefault, $user->getOptions() ) === true ) {
 114                                 $info['default'] = $globalDefault;
 115                         } else {
 116                                 throw new MWException( "Global default '$globalDefault' is invalid for field $name" );
 117                         }
 118                 }
 119
 120                 self::$defaultPreferences = $defaultPreferences;
 121
 122                 return $defaultPreferences;
 123         }
 124
 125         /**
 126          * Pull option from a user account. Handles stuff like array-type preferences.
 127          *
 128          * @param $name
 129          * @param $info
 130          * @param $user User
 131          * @return array|String
 132          */
 133         static function getOptionFromUser( $name, $info, $user ) {
 134                 $val = $user->getOption( $name );
 135
 136                 // Handling for multiselect preferences
 137                 if ( ( isset( $info['type'] ) && $info['type'] == 'multiselect' ) ||
 138                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLMultiSelectField' ) ) {
 139                         $options = HTMLFormField::flattenOptions( $info['options'] );
 140                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 141                         $val = array();
 142
 143                         foreach ( $options as $value ) {
 144                                 if ( $user->getOption( "$prefix$value" ) ) {
 145                                         $val[] = $value;
 146                                 }
 147                         }
 148                 }
 149
 150                 // Handling for checkmatrix preferences
 151                 if ( ( isset( $info['type'] ) && $info['type'] == 'checkmatrix' ) ||
 152                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLCheckMatrix' ) ) {
 153                         $columns = HTMLFormField::flattenOptions( $info['columns'] );
 154                         $rows = HTMLFormField::flattenOptions( $info['rows'] );
 155                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 156                         $val = array();
 157
 158                         foreach ( $columns as $column ) {
 159                                 foreach ( $rows as $row ) {
 160                                         if ( $user->getOption( "$prefix$column-$row" ) ) {
 161                                                 $val[] = "$column-$row";
 162                                         }
 163                                 }
 164                         }
 165                 }
 166
 167                 return $val;
 168         }
 169
 170         /**
 171          * @param $user User
 172          * @param $context IContextSource
 173          * @param $defaultPreferences
 174          * @return void
 175          */
 176         static function profilePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 177                 global $wgAuth, $wgContLang, $wgParser, $wgCookieExpiration, $wgLanguageCode,
 178                         $wgDisableTitleConversion, $wgDisableLangConversion, $wgMaxSigChars,
 179                         $wgEnableEmail, $wgEmailConfirmToEdit, $wgEnableUserEmail, $wgEmailAuthentication,
 180                         $wgEnotifWatchlist, $wgEnotifUserTalk, $wgEnotifRevealEditorAddress;
 181
 182                 // retrieving user name for GENDER and misc.
 183                 $userName = $user->getName();
 184
 185                 ## User info #####################################
 186                 // Information panel
 187                 $defaultPreferences['username'] = array(
 188                         'type' => 'info',
 189                         'label-message' => array( 'username', $userName ),
 190                         'default' => $userName,
 191                         'section' => 'personal/info',
 192                 );
 193
 194                 $defaultPreferences['userid'] = array(
 195                         'type' => 'info',
 196                         'label-message' => array( 'uid', $userName ),
 197                         'default' => $user->getId(),
 198                         'section' => 'personal/info',
 199                 );
 200
 201                 # Get groups to which the user belongs
 202                 $userEffectiveGroups = $user->getEffectiveGroups();
 203                 $userGroups = $userMembers = array();
 204                 foreach ( $userEffectiveGroups as $ueg ) {
 205                         if ( $ueg == '*' ) {
 206                                 // Skip the default * group, seems useless here
 207                                 continue;
 208                         }
 209                         $groupName = User::getGroupName( $ueg );
 210                         $userGroups[] = User::makeGroupLinkHTML( $ueg, $groupName );
 211
 212                         $memberName = User::getGroupMember( $ueg, $userName );
 213                         $userMembers[] = User::makeGroupLinkHTML( $ueg, $memberName );
 214                 }
 215                 asort( $userGroups );
 216                 asort( $userMembers );
 217
 218                 $lang = $context->getLanguage();
 219
 220                 $defaultPreferences['usergroups'] = array(
 221                         'type' => 'info',
 222                         'label' => $context->msg( 'prefs-memberingroups' )->numParams(
 223                                 count( $userGroups ) )->params( $userName )->parse(),
 224                         'default' => $context->msg( 'prefs-memberingroups-type',
 225                                 $lang->commaList( $userGroups ),
 226                                 $lang->commaList( $userMembers )
 227                         )->plain(),
 228                         'raw' => true,
 229                         'section' => 'personal/info',
 230                 );
 231
 232                 $editCount = Linker::link( SpecialPage::getTitleFor( "Contributions", $userName ),
 233                         $lang->formatNum( $user->getEditCount() ) );
 234
 235                 $defaultPreferences['editcount'] = array(
 236                         'type' => 'info',
 237                         'raw' => true,
 238                         'label-message' => 'prefs-edits',
 239                         'default' => $editCount,
 240                         'section' => 'personal/info',
 241                 );
 242
 243                 if ( $user->getRegistration() ) {
 244                         $displayUser = $context->getUser();
 245                         $userRegistration = $user->getRegistration();
 246                         $defaultPreferences['registrationdate'] = array(
 247                                 'type' => 'info',
 248                                 'label-message' => 'prefs-registration',
 249                                 'default' => $context->msg(
 250                                         'prefs-registration-date-time',
 251                                         $lang->userTimeAndDate( $userRegistration, $displayUser ),
 252                                         $lang->userDate( $userRegistration, $displayUser ),
 253                                         $lang->userTime( $userRegistration, $displayUser )
 254                                 )->parse(),
 255                                 'section' => 'personal/info',
 256                         );
 257                 }
 258
 259                 // Actually changeable stuff
 260                 $defaultPreferences['realname'] = array(
 261                         'type' => $wgAuth->allowPropChange( 'realname' ) ? 'text' : 'info',
 262                         'default' => $user->getRealName(),
 263                         'section' => 'personal/info',
 264                         'label-message' => 'yourrealname',
 265                         'help-message' => 'prefs-help-realname',
 266                 );
 267
 268                 $defaultPreferences['gender'] = array(
 269                         'type' => 'select',
 270                         'section' => 'personal/info',
 271                         'options' => array(
 272                                 $context->msg( 'gender-male' )->text() => 'male',
 273                                 $context->msg( 'gender-female' )->text() => 'female',
 274                                 $context->msg( 'gender-unknown' )->text() => 'unknown',
 275                         ),
 276                         'label-message' => 'yourgender',
 277                         'help-message' => 'prefs-help-gender',
 278                 );
 279
 280                 if ( $wgAuth->allowPasswordChange() ) {
 281                         $link = Linker::link( SpecialPage::getTitleFor( 'ChangePassword' ),
 282                                 $context->msg( 'prefs-resetpass' )->escaped(), array(),
 283                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ) );
 284
 285                         $defaultPreferences['password'] = array(
 286                                 'type' => 'info',
 287                                 'raw' => true,
 288                                 'default' => $link,
 289                                 'label-message' => 'yourpassword',
 290                                 'section' => 'personal/info',
 291                         );
 292                 }
 293                 if ( $wgCookieExpiration > 0 ) {
 294                         $defaultPreferences['rememberpassword'] = array(
 295                                 'type' => 'toggle',
 296                                 'label' => $context->msg( 'tog-rememberpassword' )->numParams(
 297                                         ceil( $wgCookieExpiration / ( 3600 * 24 ) ) )->text(),
 298                                 'section' => 'personal/info',
 299                         );
 300                 }
 301
 302                 // Language
 303                 $languages = Language::fetchLanguageNames( null, 'mw' );
 304                 if ( !array_key_exists( $wgLanguageCode, $languages ) ) {
 305                         $languages[$wgLanguageCode] = $wgLanguageCode;
 306                 }
 307                 ksort( $languages );
 308
 309                 $options = array();
 310                 foreach ( $languages as $code => $name ) {
 311                         $display = wfBCP47( $code ) . ' - ' . $name;
 312                         $options[$display] = $code;
 313                 }
 314                 $defaultPreferences['language'] = array(
 315                         'type' => 'select',
 316                         'section' => 'personal/i18n',
 317                         'options' => $options,
 318                         'label-message' => 'yourlanguage',
 319                 );
 320
 321                 // see if there are multiple language variants to choose from
 322                 if ( !$wgDisableLangConversion ) {
 323                         $variants = $wgContLang->getVariants();
 324
 325                         if ( count( $variants ) > 1 ) {
 326                                 $variantArray = array();
 327                                 foreach ( $variants as $v ) {
 328                                         $v = str_replace( '_', '-', strtolower( $v ) );
 329                                         $variantArray[$v] = $wgContLang->getVariantname( $v, false );
 330                                 }
 331
 332                                 $options = array();
 333                                 foreach ( $variantArray as $code => $name ) {
 334                                         $display = wfBCP47( $code ) . ' - ' . $name;
 335                                         $options[$display] = $code;
 336                                 }
 337
 338                                 $defaultPreferences['variant'] = array(
 339                                         'label-message' => 'yourvariant',
 340                                         'type' => 'select',
 341                                         'options' => $options,
 342                                         'section' => 'personal/i18n',
 343                                         'help-message' => 'prefs-help-variant',
 344                                 );
 345
 346                                 if ( !$wgDisableTitleConversion ) {
 347                                         $defaultPreferences['noconvertlink'] =
 348                                                 array(
 349                                                 'type' => 'toggle',
 350                                                 'section' => 'personal/i18n',
 351                                                 'label-message' => 'tog-noconvertlink',
 352                                         );
 353                                 }
 354                         }
 355                 }
 356
 357                 // show a preview of the old signature first
 358                 $oldsigWikiText = $wgParser->preSaveTransform( "~~~", $context->getTitle(), $user, ParserOptions::newFromContext( $context ) );
 359                 $oldsigHTML = $context->getOutput()->parseInline( $oldsigWikiText, true, true );
 360                 $defaultPreferences['oldsig'] = array(
 361                         'type' => 'info',
 362                         'raw' => true,
 363                         'label-message' => 'tog-oldsig',
 364                         'default' => $oldsigHTML,
 365                         'section' => 'personal/signature',
 366                 );
 367                 $defaultPreferences['nickname'] = array(
 368                         'type' => $wgAuth->allowPropChange( 'nickname' ) ? 'text' : 'info',
 369                         'maxlength' => $wgMaxSigChars,
 370                         'label-message' => 'yournick',
 371                         'validation-callback' => array( 'Preferences', 'validateSignature' ),
 372                         'section' => 'personal/signature',
 373                         'filter-callback' => array( 'Preferences', 'cleanSignature' ),
 374                 );
 375                 $defaultPreferences['fancysig'] = array(
 376                         'type' => 'toggle',
 377                         'label-message' => 'tog-fancysig',
 378                         'help-message' => 'prefs-help-signature', // show general help about signature at the bottom of the section
 379                         'section' => 'personal/signature'
 380                 );
 381
 382                 ## Email stuff
 383
 384                 if ( $wgEnableEmail ) {
 385                         $helpMessages[] = $wgEmailConfirmToEdit
 386                                         ? 'prefs-help-email-required'
 387                                         : 'prefs-help-email';
 388
 389                         if ( $wgEnableUserEmail ) {
 390                                 // additional messages when users can send email to each other
 391                                 $helpMessages[] = 'prefs-help-email-others';
 392                         }
 393
 394                         $link = Linker::link(
 395                                 SpecialPage::getTitleFor( 'ChangeEmail' ),
 396                                 $context->msg( $user->getEmail() ? 'prefs-changeemail' : 'prefs-setemail' )->escaped(),
 397                                 array(),
 398                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ) );
 399
 400                         $emailAddress = $user->getEmail() ? htmlspecialchars( $user->getEmail() ) : '';
 401                         if ( $wgAuth->allowPropChange( 'emailaddress' ) ) {
 402                                 $emailAddress .= $emailAddress == '' ? $link : (
 403                                         $context->msg( 'word-separator' )->plain()
 404                                         . $context->msg( 'parentheses' )->rawParams( $link )->plain()
 405                                 );
 406                         }
 407
 408                         $defaultPreferences['emailaddress'] = array(
 409                                 'type' => 'info',
 410                                 'raw' => true,
 411                                 'default' => $emailAddress,
 412                                 'label-message' => 'youremail',
 413                                 'section' => 'personal/email',
 414                                 'help-messages' => $helpMessages,
 415                                 # 'cssclass' chosen below
 416                         );
 417
 418                         $disableEmailPrefs = false;
 419
 420                         if ( $wgEmailAuthentication ) {
 421                                 $emailauthenticationclass = 'mw-email-not-authenticated';
 422                                 if ( $user->getEmail() ) {
 423                                         if ( $user->getEmailAuthenticationTimestamp() ) {
 424                                                 // date and time are separate parameters to facilitate localisation.
 425                                                 // $time is kept for backward compat reasons.
 426                                                 // 'emailauthenticated' is also used in SpecialConfirmemail.php
 427                                                 $displayUser = $context->getUser();
 428                                                 $emailTimestamp = $user->getEmailAuthenticationTimestamp();
 429                                                 $time = $lang->userTimeAndDate( $emailTimestamp, $displayUser );
 430                                                 $d = $lang->userDate( $emailTimestamp, $displayUser );
 431                                                 $t = $lang->userTime( $emailTimestamp, $displayUser );
 432                                                 $emailauthenticated = $context->msg( 'emailauthenticated',
 433                                                         $time, $d, $t )->parse() . '<br />';
 434                                                 $disableEmailPrefs = false;
 435                                                 $emailauthenticationclass = 'mw-email-authenticated';
 436                                         } else {
 437                                                 $disableEmailPrefs = true;
 438                                                 $emailauthenticated = $context->msg( 'emailnotauthenticated' )->parse() . '<br />' .
 439                                                         Linker::linkKnown(
 440                                                                 SpecialPage::getTitleFor( 'Confirmemail' ),
 441                                                                 $context->msg( 'emailconfirmlink' )->escaped()
 442                                                         ) . '<br />';
 443                                                 $emailauthenticationclass = "mw-email-not-authenticated";
 444                                         }
 445                                 } else {
 446                                         $disableEmailPrefs = true;
 447                                         $emailauthenticated = $context->msg( 'noemailprefs' )->escaped();
 448                                         $emailauthenticationclass = 'mw-email-none';
 449                                 }
 450
 451                                 $defaultPreferences['emailauthentication'] = array(
 452                                         'type' => 'info',
 453                                         'raw' => true,
 454                                         'section' => 'personal/email',
 455                                         'label-message' => 'prefs-emailconfirm-label',
 456                                         'default' => $emailauthenticated,
 457                                         # Apply the same CSS class used on the input to the message:
 458                                         'cssclass' => $emailauthenticationclass,
 459                                 );
 460                                 $defaultPreferences['emailaddress']['cssclass'] = $emailauthenticationclass;
 461                         }
 462
 463                         if ( $wgEnableUserEmail && $user->isAllowed( 'sendemail' ) ) {
 464                                 $defaultPreferences['disablemail'] = array(
 465                                         'type' => 'toggle',
 466                                         'invert' => true,
 467                                         'section' => 'personal/email',
 468                                         'label-message' => 'allowemail',
 469                                         'disabled' => $disableEmailPrefs,
 470                                 );
 471                                 $defaultPreferences['ccmeonemails'] = array(
 472                                         'type' => 'toggle',
 473                                         'section' => 'personal/email',
 474                                         'label-message' => 'tog-ccmeonemails',
 475                                         'disabled' => $disableEmailPrefs,
 476                                 );
 477                         }
 478
 479                         if ( $wgEnotifWatchlist ) {
 480                                 $defaultPreferences['enotifwatchlistpages'] = array(
 481                                         'type' => 'toggle',
 482                                         'section' => 'personal/email',
 483                                         'label-message' => 'tog-enotifwatchlistpages',
 484                                         'disabled' => $disableEmailPrefs,
 485                                 );
 486                         }
 487                         if ( $wgEnotifUserTalk ) {
 488                                 $defaultPreferences['enotifusertalkpages'] = array(
 489                                         'type' => 'toggle',
 490                                         'section' => 'personal/email',
 491                                         'label-message' => 'tog-enotifusertalkpages',
 492                                         'disabled' => $disableEmailPrefs,
 493                                 );
 494                         }
 495                         if ( $wgEnotifUserTalk || $wgEnotifWatchlist ) {
 496                                 $defaultPreferences['enotifminoredits'] = array(
 497                                         'type' => 'toggle',
 498                                         'section' => 'personal/email',
 499                                         'label-message' => 'tog-enotifminoredits',
 500                                         'disabled' => $disableEmailPrefs,
 501                                 );
 502
 503                                 if ( $wgEnotifRevealEditorAddress ) {
 504                                         $defaultPreferences['enotifrevealaddr'] = array(
 505                                                 'type' => 'toggle',
 506                                                 'section' => 'personal/email',
 507                                                 'label-message' => 'tog-enotifrevealaddr',
 508                                                 'disabled' => $disableEmailPrefs,
 509                                         );
 510                                 }
 511                         }
 512                 }
 513         }
 514
 515         /**
 516          * @param $user User
 517          * @param $context IContextSource
 518          * @param $defaultPreferences
 519          * @return void
 520          */
 521         static function skinPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 522                 ## Skin #####################################
 523                 global $wgAllowUserCss, $wgAllowUserJs;
 524
 525                 $defaultPreferences['skin'] = array(
 526                         'type' => 'radio',
 527                         'options' => self::generateSkinOptions( $user, $context ),
 528                         'label' => '&#160;',
 529                         'section' => 'rendering/skin',
 530                 );
 531
 532                 # Create links to user CSS/JS pages for all skins
 533                 # This code is basically copied from generateSkinOptions().  It'd
 534                 # be nice to somehow merge this back in there to avoid redundancy.
 535                 if ( $wgAllowUserCss || $wgAllowUserJs ) {
 536                         $linkTools = array();
 537                         $userName = $user->getName();
 538
 539                         if ( $wgAllowUserCss ) {
 540                                 $cssPage = Title::makeTitleSafe( NS_USER, $userName . '/common.css' );
 541                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
 542                         }
 543
 544                         if ( $wgAllowUserJs ) {
 545                                 $jsPage = Title::makeTitleSafe( NS_USER, $userName . '/common.js' );
 546                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
 547                         }
 548
 549                         $defaultPreferences['commoncssjs'] = array(
 550                                 'type' => 'info',
 551                                 'raw' => true,
 552                                 'default' => $context->getLanguage()->pipeList( $linkTools ),
 553                                 'label-message' => 'prefs-common-css-js',
 554                                 'section' => 'rendering/skin',
 555                         );
 556                 }
 557         }
 558
 559         /**
 560          * @param $user User
 561          * @param $context IContextSource
 562          * @param $defaultPreferences Array
 563          */
 564         static function filesPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 565                 ## Files #####################################
 566                 $defaultPreferences['imagesize'] = array(
 567                         'type' => 'select',
 568                         'options' => self::getImageSizes( $context ),
 569                         'label-message' => 'imagemaxsize',
 570                         'section' => 'rendering/files',
 571                 );
 572                 $defaultPreferences['thumbsize'] = array(
 573                         'type' => 'select',
 574                         'options' => self::getThumbSizes( $context ),
 575                         'label-message' => 'thumbsize',
 576                         'section' => 'rendering/files',
 577                 );
 578         }
 579
 580         /**
 581          * @param $user User
 582          * @param $context IContextSource
 583          * @param $defaultPreferences
 584          * @return void
 585          */
 586         static function datetimePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 587                 ## Date and time #####################################
 588                 $dateOptions = self::getDateOptions( $context );
 589                 if ( $dateOptions ) {
 590                         $defaultPreferences['date'] = array(
 591                                 'type' => 'radio',
 592                                 'options' => $dateOptions,
 593                                 'label' => '&#160;',
 594                                 'section' => 'datetime/dateformat',
 595                         );
 596                 }
 597
 598                 // Info
 599                 $now = wfTimestampNow();
 600                 $lang = $context->getLanguage();
 601                 $nowlocal = Xml::element( 'span', array( 'id' => 'wpLocalTime' ),
 602                         $lang->time( $now, true ) );
 603                 $nowserver = $lang->time( $now, false ) .
 604                         Html::hidden( 'wpServerTime', (int)substr( $now, 8, 2 ) * 60 + (int)substr( $now, 10, 2 ) );
 605
 606                 $defaultPreferences['nowserver'] = array(
 607                         'type' => 'info',
 608                         'raw' => 1,
 609                         'label-message' => 'servertime',
 610                         'default' => $nowserver,
 611                         'section' => 'datetime/timeoffset',
 612                 );
 613
 614                 $defaultPreferences['nowlocal'] = array(
 615                         'type' => 'info',
 616                         'raw' => 1,
 617                         'label-message' => 'localtime',
 618                         'default' => $nowlocal,
 619                         'section' => 'datetime/timeoffset',
 620                 );
 621
 622                 // Grab existing pref.
 623                 $tzOffset = $user->getOption( 'timecorrection' );
 624                 $tz = explode( '|', $tzOffset, 3 );
 625
 626                 $tzOptions = self::getTimezoneOptions( $context );
 627
 628                 $tzSetting = $tzOffset;
 629                 if ( count( $tz ) > 1 && $tz[0] == 'Offset' ) {
 630                         $minDiff = $tz[1];
 631                         $tzSetting = sprintf( '%+03d:%02d', floor( $minDiff / 60 ), abs( $minDiff ) % 60 );
 632                 } elseif ( count( $tz ) > 1 && $tz[0] == 'ZoneInfo' &&
 633                         !in_array( $tzOffset, HTMLFormField::flattenOptions( $tzOptions ) ) )
 634                 {
 635                         # Timezone offset can vary with DST
 636                         $userTZ = timezone_open( $tz[2] );
 637                         if ( $userTZ !== false ) {
 638                                 $minDiff = floor( timezone_offset_get( $userTZ, date_create( 'now' ) ) / 60 );
 639                                 $tzSetting = "ZoneInfo|$minDiff|{$tz[2]}";
 640                         }
 641                 }
 642
 643                 $defaultPreferences['timecorrection'] = array(
 644                         'class' => 'HTMLSelectOrOtherField',
 645                         'label-message' => 'timezonelegend',
 646                         'options' => $tzOptions,
 647                         'default' => $tzSetting,
 648                         'size' => 20,
 649                         'section' => 'datetime/timeoffset',
 650                 );
 651         }
 652
 653         /**
 654          * @param $user User
 655          * @param $context IContextSource
 656          * @param $defaultPreferences Array
 657          */
 658         static function renderingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 659                 ## Page Rendering ##############################
 660                 global $wgAllowUserCssPrefs;
 661                 if ( $wgAllowUserCssPrefs ) {
 662                         $defaultPreferences['underline'] = array(
 663                                 'type' => 'select',
 664                                 'options' => array(
 665                                         $context->msg( 'underline-never' )->text() => 0,
 666                                         $context->msg( 'underline-always' )->text() => 1,
 667                                         $context->msg( 'underline-default' )->text() => 2,
 668                                 ),
 669                                 'label-message' => 'tog-underline',
 670                                 'section' => 'rendering/advancedrendering',
 671                         );
 672                 }
 673
 674                 $stubThresholdValues = array( 50, 100, 500, 1000, 2000, 5000, 10000 );
 675                 $stubThresholdOptions = array( $context->msg( 'stub-threshold-disabled' )->text() => 0 );
 676                 foreach ( $stubThresholdValues as $value ) {
 677                         $stubThresholdOptions[$context->msg( 'size-bytes', $value )->text()] = $value;
 678                 }
 679
 680                 $defaultPreferences['stubthreshold'] = array(
 681                         'type' => 'selectorother',
 682                         'section' => 'rendering/advancedrendering',
 683                         'options' => $stubThresholdOptions,
 684                         'size' => 20,
 685                         'label-raw' => $context->msg( 'stub-threshold' )->text(), // Raw HTML message. Yay?
 686                 );
 687
 688                 if ( $wgAllowUserCssPrefs ) {
 689                         $defaultPreferences['showtoc'] = array(
 690                                 'type' => 'toggle',
 691                                 'section' => 'rendering/advancedrendering',
 692                                 'label-message' => 'tog-showtoc',
 693                         );
 694                 }
 695                 $defaultPreferences['nocache'] = array(
 696                         'type' => 'toggle',
 697                         'label-message' => 'tog-nocache',
 698                         'section' => 'rendering/advancedrendering',
 699                 );
 700                 $defaultPreferences['showhiddencats'] = array(
 701                         'type' => 'toggle',
 702                         'section' => 'rendering/advancedrendering',
 703                         'label-message' => 'tog-showhiddencats'
 704                 );
 705                 $defaultPreferences['showjumplinks'] = array(
 706                         'type' => 'toggle',
 707                         'section' => 'rendering/advancedrendering',
 708                         'label-message' => 'tog-showjumplinks',
 709                 );
 710
 711                 if ( $wgAllowUserCssPrefs ) {
 712                         $defaultPreferences['justify'] = array(
 713                                 'type' => 'toggle',
 714                                 'section' => 'rendering/advancedrendering',
 715                                 'label-message' => 'tog-justify',
 716                         );
 717                 }
 718
 719                 $defaultPreferences['numberheadings'] = array(
 720                         'type' => 'toggle',
 721                         'section' => 'rendering/advancedrendering',
 722                         'label-message' => 'tog-numberheadings',
 723                 );
 724         }
 725
 726         /**
 727          * @param $user User
 728          * @param $context IContextSource
 729          * @param $defaultPreferences Array
 730          */
 731         static function editingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 732                 global $wgAllowUserCssPrefs;
 733
 734                 ## Editing #####################################
 735                 $defaultPreferences['cols'] = array(
 736                         'type' => 'int',
 737                         'label-message' => 'columns',
 738                         'section' => 'editing/textboxsize',
 739                         'min' => 4,
 740                         'max' => 1000,
 741                 );
 742                 $defaultPreferences['rows'] = array(
 743                         'type' => 'int',
 744                         'label-message' => 'rows',
 745                         'section' => 'editing/textboxsize',
 746                         'min' => 4,
 747                         'max' => 1000,
 748                 );
 749
 750                 if ( $wgAllowUserCssPrefs ) {
 751                         $defaultPreferences['editfont'] = array(
 752                                 'type' => 'select',
 753                                 'section' => 'editing/advancedediting',
 754                                 'label-message' => 'editfont-style',
 755                                 'options' => array(
 756                                         $context->msg( 'editfont-default' )->text() => 'default',
 757                                         $context->msg( 'editfont-monospace' )->text() => 'monospace',
 758                                         $context->msg( 'editfont-sansserif' )->text() => 'sans-serif',
 759                                         $context->msg( 'editfont-serif' )->text() => 'serif',
 760                                 )
 761                         );
 762                 }
 763                 $defaultPreferences['previewontop'] = array(
 764                         'type' => 'toggle',
 765                         'section' => 'editing/advancedediting',
 766                         'label-message' => 'tog-previewontop',
 767                 );
 768                 $defaultPreferences['previewonfirst'] = array(
 769                         'type' => 'toggle',
 770                         'section' => 'editing/advancedediting',
 771                         'label-message' => 'tog-previewonfirst',
 772                 );
 773
 774                 if ( $wgAllowUserCssPrefs ) {
 775                         $defaultPreferences['editsection'] = array(
 776                                 'type' => 'toggle',
 777                                 'section' => 'editing/advancedediting',
 778                                 'label-message' => 'tog-editsection',
 779                         );
 780                 }
 781                 $defaultPreferences['editsectiononrightclick'] = array(
 782                         'type' => 'toggle',
 783                         'section' => 'editing/advancedediting',
 784                         'label-message' => 'tog-editsectiononrightclick',
 785                 );
 786                 $defaultPreferences['editondblclick'] = array(
 787                         'type' => 'toggle',
 788                         'section' => 'editing/advancedediting',
 789                         'label-message' => 'tog-editondblclick',
 790                 );
 791                 $defaultPreferences['showtoolbar'] = array(
 792                         'type' => 'toggle',
 793                         'section' => 'editing/advancedediting',
 794                         'label-message' => 'tog-showtoolbar',
 795                 );
 796
 797                 if ( $user->isAllowed( 'minoredit' ) ) {
 798                         $defaultPreferences['minordefault'] = array(
 799                                 'type' => 'toggle',
 800                                 'section' => 'editing/advancedediting',
 801                                 'label-message' => 'tog-minordefault',
 802                         );
 803                 }
 804
 805                 $defaultPreferences['forceeditsummary'] = array(
 806                         'type' => 'toggle',
 807                         'section' => 'editing/advancedediting',
 808                         'label-message' => 'tog-forceeditsummary',
 809                 );
 810
 811                 $defaultPreferences['uselivepreview'] = array(
 812                         'type' => 'toggle',
 813                         'section' => 'editing/advancedediting',
 814                         'label-message' => 'tog-uselivepreview',
 815                 );
 816
 817                 $defaultPreferences['useeditwarning'] = array(
 818                         'type' => 'toggle',
 819                         'section' => 'editing/advancedediting',
 820                         'label-message' => 'tog-useeditwarning',
 821                 );
 822
 823         }
 824
 825         /**
 826          * @param $user User
 827          * @param $context IContextSource
 828          * @param $defaultPreferences Array
 829          */
 830         static function rcPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 831                 global $wgRCMaxAge, $wgRCShowWatchingUsers;
 832
 833                 ## RecentChanges #####################################
 834                 $defaultPreferences['rcdays'] = array(
 835                         'type' => 'float',
 836                         'label-message' => 'recentchangesdays',
 837                         'section' => 'rc/displayrc',
 838                         'min' => 1,
 839                         'max' => ceil( $wgRCMaxAge / ( 3600 * 24 ) ),
 840                         'help' => $context->msg( 'recentchangesdays-max' )->numParams(
 841                                 ceil( $wgRCMaxAge / ( 3600 * 24 ) ) )->text()
 842                 );
 843                 $defaultPreferences['rclimit'] = array(
 844                         'type' => 'int',
 845                         'label-message' => 'recentchangescount',
 846                         'help-message' => 'prefs-help-recentchangescount',
 847                         'section' => 'rc/displayrc',
 848                 );
 849                 $defaultPreferences['usenewrc'] = array(
 850                         'type' => 'toggle',
 851                         'label-message' => 'tog-usenewrc',
 852                         'section' => 'rc/advancedrc',
 853                 );
 854                 $defaultPreferences['hideminor'] = array(
 855                         'type' => 'toggle',
 856                         'label-message' => 'tog-hideminor',
 857                         'section' => 'rc/advancedrc',
 858                 );
 859
 860                 if ( $user->useRCPatrol() ) {
 861                         $defaultPreferences['hidepatrolled'] = array(
 862                                 'type' => 'toggle',
 863                                 'section' => 'rc/advancedrc',
 864                                 'label-message' => 'tog-hidepatrolled',
 865                         );
 866                         $defaultPreferences['newpageshidepatrolled'] = array(
 867                                 'type' => 'toggle',
 868                                 'section' => 'rc/advancedrc',
 869                                 'label-message' => 'tog-newpageshidepatrolled',
 870                         );
 871                 }
 872
 873                 if ( $wgRCShowWatchingUsers ) {
 874                         $defaultPreferences['shownumberswatching'] = array(
 875                                 'type' => 'toggle',
 876                                 'section' => 'rc/advancedrc',
 877                                 'label-message' => 'tog-shownumberswatching',
 878                         );
 879                 }
 880         }
 881
 882         /**
 883          * @param $user User
 884          * @param $context IContextSource
 885          * @param $defaultPreferences
 886          */
 887         static function watchlistPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 888                 global $wgUseRCPatrol, $wgEnableAPI, $wgRCMaxAge;
 889
 890                 $watchlistdaysMax = ceil( $wgRCMaxAge / ( 3600 * 24 ) );
 891
 892                 ## Watchlist #####################################
 893                 $defaultPreferences['watchlistdays'] = array(
 894                         'type' => 'float',
 895                         'min' => 0,
 896                         'max' => $watchlistdaysMax,
 897                         'section' => 'watchlist/displaywatchlist',
 898                         'help' => $context->msg( 'prefs-watchlist-days-max' )->numParams(
 899                                 $watchlistdaysMax )->text(),
 900                         'label-message' => 'prefs-watchlist-days',
 901                 );
 902                 $defaultPreferences['wllimit'] = array(
 903                         'type' => 'int',
 904                         'min' => 0,
 905                         'max' => 1000,
 906                         'label-message' => 'prefs-watchlist-edits',
 907                         'help' => $context->msg( 'prefs-watchlist-edits-max' )->escaped(),
 908                         'section' => 'watchlist/displaywatchlist',
 909                 );
 910                 $defaultPreferences['extendwatchlist'] = array(
 911                         'type' => 'toggle',
 912                         'section' => 'watchlist/advancedwatchlist',
 913                         'label-message' => 'tog-extendwatchlist',
 914                 );
 915                 $defaultPreferences['watchlisthideminor'] = array(
 916                         'type' => 'toggle',
 917                         'section' => 'watchlist/advancedwatchlist',
 918                         'label-message' => 'tog-watchlisthideminor',
 919                 );
 920                 $defaultPreferences['watchlisthidebots'] = array(
 921                         'type' => 'toggle',
 922                         'section' => 'watchlist/advancedwatchlist',
 923                         'label-message' => 'tog-watchlisthidebots',
 924                 );
 925                 $defaultPreferences['watchlisthideown'] = array(
 926                         'type' => 'toggle',
 927                         'section' => 'watchlist/advancedwatchlist',
 928                         'label-message' => 'tog-watchlisthideown',
 929                 );
 930                 $defaultPreferences['watchlisthideanons'] = array(
 931                         'type' => 'toggle',
 932                         'section' => 'watchlist/advancedwatchlist',
 933                         'label-message' => 'tog-watchlisthideanons',
 934                 );
 935                 $defaultPreferences['watchlisthideliu'] = array(
 936                         'type' => 'toggle',
 937                         'section' => 'watchlist/advancedwatchlist',
 938                         'label-message' => 'tog-watchlisthideliu',
 939                 );
 940
 941                 if ( $wgUseRCPatrol ) {
 942                         $defaultPreferences['watchlisthidepatrolled'] = array(
 943                                 'type' => 'toggle',
 944                                 'section' => 'watchlist/advancedwatchlist',
 945                                 'label-message' => 'tog-watchlisthidepatrolled',
 946                         );
 947                 }
 948
 949                 if ( $wgEnableAPI ) {
 950                         # Some random gibberish as a proposed default
 951                         // @todo Fixme: this should use CryptRand but we may not want to read urandom on every view
 952                         $hash = sha1( mt_rand() . microtime( true ) );
 953
 954                         $defaultPreferences['watchlisttoken'] = array(
 955                                 'type' => 'text',
 956                                 'section' => 'watchlist/advancedwatchlist',
 957                                 'label-message' => 'prefs-watchlist-token',
 958                                 'help' => $context->msg( 'prefs-help-watchlist-token', $hash )->escaped()
 959                         );
 960                 }
 961
 962                 $watchTypes = array(
 963                         'edit' => 'watchdefault',
 964                         'move' => 'watchmoves',
 965                         'delete' => 'watchdeletion'
 966                 );
 967
 968                 // Kinda hacky
 969                 if ( $user->isAllowed( 'createpage' ) || $user->isAllowed( 'createtalk' ) ) {
 970                         $watchTypes['read'] = 'watchcreations';
 971                 }
 972
 973                 foreach ( $watchTypes as $action => $pref ) {
 974                         if ( $user->isAllowed( $action ) ) {
 975                                 $defaultPreferences[$pref] = array(
 976                                         'type' => 'toggle',
 977                                         'section' => 'watchlist/advancedwatchlist',
 978                                         'label-message' => "tog-$pref",
 979                                 );
 980                         }
 981                 }
 982         }
 983
 984         /**
 985          * @param $user User
 986          * @param $context IContextSource
 987          * @param $defaultPreferences Array
 988          */
 989         static function searchPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 990                 global $wgContLang, $wgVectorUseSimpleSearch;
 991
 992                 ## Search #####################################
 993                 $defaultPreferences['searchlimit'] = array(
 994                         'type' => 'int',
 995                         'label-message' => 'resultsperpage',
 996                         'section' => 'searchoptions/displaysearchoptions',
 997                         'min' => 0,
 998                 );
 999
1000                 if ( $wgVectorUseSimpleSearch ) {
1001                         $defaultPreferences['vector-simplesearch'] = array(
1002                                 'type' => 'toggle',
1003                                 'label-message' => 'vector-simplesearch-preference',
1004                                 'section' => 'searchoptions/displaysearchoptions',
1005                         );
1006                 }
1007
1008                 $defaultPreferences['disablesuggest'] = array(
1009                         'type' => 'toggle',
1010                         'label-message' => 'mwsuggest-disable',
1011                         'section' => 'searchoptions/displaysearchoptions',
1012                 );
1013
1014                 $defaultPreferences['searcheverything'] = array(
1015                         'type' => 'toggle',
1016                         'label-message' => 'searcheverything-enable',
1017                         'section' => 'searchoptions/advancedsearchoptions',
1018                 );
1019
1020                 $nsOptions = $wgContLang->getFormattedNamespaces();
1021                 $nsOptions[0] = $context->msg( 'blanknamespace' )->text();
1022                 foreach ( $nsOptions as $ns => $name ) {
1023                         if ( $ns < 0 ) {
1024                                 unset( $nsOptions[$ns] );
1025                         }
1026                 }
1027
1028                 $defaultPreferences['searchnamespaces'] = array(
1029                         'type' => 'multiselect',
1030                         'label-message' => 'defaultns',
1031                         'options' => array_flip( $nsOptions ),
1032                         'section' => 'searchoptions/advancedsearchoptions',
1033                         'prefix' => 'searchNs',
1034                 );
1035         }
1036
1037         /**
1038          * @param $user User
1039          * @param $context IContextSource
1040          * @param $defaultPreferences Array
1041          */
1042         static function miscPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1043                 global $wgContLang;
1044
1045                 ## Misc #####################################
1046                 $defaultPreferences['diffonly'] = array(
1047                         'type' => 'toggle',
1048                         'section' => 'misc/diffs',
1049                         'label-message' => 'tog-diffonly',
1050                 );
1051                 $defaultPreferences['norollbackdiff'] = array(
1052                         'type' => 'toggle',
1053                         'section' => 'misc/diffs',
1054                         'label-message' => 'tog-norollbackdiff',
1055                 );
1056
1057                 // Stuff from Language::getExtraUserToggles()
1058                 $toggles = $wgContLang->getExtraUserToggles();
1059
1060                 foreach ( $toggles as $toggle ) {
1061                         $defaultPreferences[$toggle] = array(
1062                                 'type' => 'toggle',
1063                                 'section' => 'personal/i18n',
1064                                 'label-message' => "tog-$toggle",
1065                         );
1066                 }
1067         }
1068
1069         /**
1070          * @param $user User The User object
1071          * @param $context IContextSource
1072          * @return Array: text/links to display as key; $skinkey as value
1073          */
1074         static function generateSkinOptions( $user, IContextSource $context ) {
1075                 global $wgDefaultSkin, $wgAllowUserCss, $wgAllowUserJs;
1076                 $ret = array();
1077
1078                 $mptitle = Title::newMainPage();
1079                 $previewtext = $context->msg( 'skin-preview' )->text();
1080
1081                 # Only show members of Skin::getSkinNames() rather than
1082                 # $skinNames (skins is all skin names from Language.php)
1083                 $validSkinNames = Skin::getUsableSkins();
1084
1085                 # Sort by UI skin name. First though need to update validSkinNames as sometimes
1086                 # the skinkey & UI skinname differ (e.g. "standard" skinkey is "Classic" in the UI).
1087                 foreach ( $validSkinNames as $skinkey => &$skinname ) {
1088                         $msg = $context->msg( "skinname-{$skinkey}" );
1089                         if ( $msg->exists() ) {
1090                                 $skinname = htmlspecialchars( $msg->text() );
1091                         }
1092                 }
1093                 asort( $validSkinNames );
1094
1095                 foreach ( $validSkinNames as $skinkey => $sn ) {
1096                         $linkTools = array();
1097
1098                         # Mark the default skin
1099                         if ( $skinkey == $wgDefaultSkin ) {
1100                                 $linkTools[] = $context->msg( 'default' )->escaped();
1101                         }
1102
1103                         # Create preview link
1104                         $mplink = htmlspecialchars( $mptitle->getLocalURL( array( 'useskin' => $skinkey ) ) );
1105                         $linkTools[] = "<a target='_blank' href=\"$mplink\">$previewtext</a>";
1106
1107                         # Create links to user CSS/JS pages
1108                         if ( $wgAllowUserCss ) {
1109                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.css' );
1110                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
1111                         }
1112
1113                         if ( $wgAllowUserJs ) {
1114                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.js' );
1115                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
1116                         }
1117
1118                         $display = $sn . ' ' . $context->msg( 'parentheses', $context->getLanguage()->pipeList( $linkTools ) )->text();
1119                         $ret[$display] = $skinkey;
1120                 }
1121
1122                 return $ret;
1123         }
1124
1125         /**
1126          * @param $context IContextSource
1127          * @return array
1128          */
1129         static function getDateOptions( IContextSource $context ) {
1130                 $lang = $context->getLanguage();
1131                 $dateopts = $lang->getDatePreferences();
1132
1133                 $ret = array();
1134
1135                 if ( $dateopts ) {
1136                         if ( !in_array( 'default', $dateopts ) ) {
1137                                 $dateopts[] = 'default'; // Make sure default is always valid
1138                                                                                 // Bug 19237
1139                         }
1140
1141                         // KLUGE: site default might not be valid for user language
1142                         global $wgDefaultUserOptions;
1143                         if ( !in_array( $wgDefaultUserOptions['date'], $dateopts ) ) {
1144                                 $wgDefaultUserOptions['date'] = 'default';
1145                         }
1146
1147                         $epoch = wfTimestampNow();
1148                         foreach ( $dateopts as $key ) {
1149                                 if ( $key == 'default' ) {
1150                                         $formatted = $context->msg( 'datedefault' )->escaped();
1151                                 } else {
1152                                         $formatted = htmlspecialchars( $lang->timeanddate( $epoch, false, $key ) );
1153                                 }
1154                                 $ret[$formatted] = $key;
1155                         }
1156                 }
1157                 return $ret;
1158         }
1159
1160         /**
1161          * @param $context IContextSource
1162          * @return array
1163          */
1164         static function getImageSizes( IContextSource $context ) {
1165                 global $wgImageLimits;
1166
1167                 $ret = array();
1168                 $pixels = $context->msg( 'unit-pixel' )->text();
1169
1170                 foreach ( $wgImageLimits as $index => $limits ) {
1171                         $display = "{$limits[0]}×{$limits[1]}" . $pixels;
1172                         $ret[$display] = $index;
1173                 }
1174
1175                 return $ret;
1176         }
1177
1178         /**
1179          * @param $context IContextSource
1180          * @return array
1181          */
1182         static function getThumbSizes( IContextSource $context ) {
1183                 global $wgThumbLimits;
1184
1185                 $ret = array();
1186                 $pixels = $context->msg( 'unit-pixel' )->text();
1187
1188                 foreach ( $wgThumbLimits as $index => $size ) {
1189                         $display = $size . $pixels;
1190                         $ret[$display] = $index;
1191                 }
1192
1193                 return $ret;
1194         }
1195
1196         /**
1197          * @param $signature string
1198          * @param $alldata array
1199          * @param $form HTMLForm
1200          * @return bool|string
1201          */
1202         static function validateSignature( $signature, $alldata, $form ) {
1203                 global $wgParser, $wgMaxSigChars;
1204                 if ( mb_strlen( $signature ) > $wgMaxSigChars ) {
1205                         return Xml::element( 'span', array( 'class' => 'error' ),
1206                                 $form->msg( 'badsiglength' )->numParams( $wgMaxSigChars )->text() );
1207                 } elseif ( isset( $alldata['fancysig'] ) &&
1208                                 $alldata['fancysig'] &&
1209                                 false === $wgParser->validateSig( $signature ) ) {
1210                         return Xml::element( 'span', array( 'class' => 'error' ), $form->msg( 'badsig' )->text() );
1211                 } else {
1212                         return true;
1213                 }
1214         }
1215
1216         /**
1217          * @param $signature string
1218          * @param $alldata array
1219          * @param $form HTMLForm
1220          * @return string
1221          */
1222         static function cleanSignature( $signature, $alldata, $form ) {
1223                 if ( isset( $alldata['fancysig'] ) && $alldata['fancysig'] ) {
1224                         global $wgParser;
1225                         $signature = $wgParser->cleanSig( $signature );
1226                 } else {
1227                         // When no fancy sig used, make sure ~{3,5} get removed.
1228                         $signature = Parser::cleanSigInSig( $signature );
1229                 }
1230
1231                 return $signature;
1232         }
1233
1234         /**
1235          * @param $user User
1236          * @param $context IContextSource
1237          * @param $formClass string
1238          * @param array $remove array of items to remove
1239          * @return HtmlForm
1240          */
1241         static function getFormObject( $user, IContextSource $context, $formClass = 'PreferencesForm', array $remove = array() ) {
1242                 $formDescriptor = Preferences::getPreferences( $user, $context );
1243                 if ( count( $remove ) ) {
1244                         $removeKeys = array_flip( $remove );
1245                         $formDescriptor = array_diff_key( $formDescriptor, $removeKeys );
1246                 }
1247
1248                 // Remove type=api preferences. They are not intended for rendering in the form.
1249                 foreach ( $formDescriptor as $name => $info ) {
1250                         if ( isset( $info['type'] ) && $info['type'] === 'api' ) {
1251                                 unset( $formDescriptor[$name] );
1252                         }
1253                 }
1254
1255                 /**
1256                  * @var $htmlForm PreferencesForm
1257                  */
1258                 $htmlForm = new $formClass( $formDescriptor, $context, 'prefs' );
1259
1260                 $htmlForm->setModifiedUser( $user );
1261                 $htmlForm->setId( 'mw-prefs-form' );
1262                 $htmlForm->setSubmitText( $context->msg( 'saveprefs' )->text() );
1263                 # Used message keys: 'accesskey-preferences-save', 'tooltip-preferences-save'
1264                 $htmlForm->setSubmitTooltip( 'preferences-save' );
1265                 $htmlForm->setSubmitID( 'prefsubmit' );
1266                 $htmlForm->setSubmitCallback( array( 'Preferences', 'tryFormSubmit' ) );
1267
1268                 return $htmlForm;
1269         }
1270
1271         /**
1272          * @param $context IContextSource
1273          * @return array
1274          */
1275         static function getTimezoneOptions( IContextSource $context ) {
1276                 $opt = array();
1277
1278                 global $wgLocalTZoffset, $wgLocaltimezone;
1279                 // Check that $wgLocalTZoffset is the same as $wgLocaltimezone
1280                 if ( $wgLocalTZoffset == date( 'Z' ) / 60 ) {
1281                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $wgLocaltimezone )->text();
1282                 } else {
1283                         $tzstring = sprintf( '%+03d:%02d', floor( $wgLocalTZoffset / 60 ), abs( $wgLocalTZoffset ) % 60 );
1284                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $tzstring )->text();
1285                 }
1286                 $opt[$server_tz_msg] = "System|$wgLocalTZoffset";
1287                 $opt[$context->msg( 'timezoneuseoffset' )->text()] = 'other';
1288                 $opt[$context->msg( 'guesstimezone' )->text()] = 'guess';
1289
1290                 if ( function_exists( 'timezone_identifiers_list' ) ) {
1291                         # Read timezone list
1292                         $tzs = timezone_identifiers_list();
1293                         sort( $tzs );
1294
1295                         $tzRegions = array();
1296                         $tzRegions['Africa'] = $context->msg( 'timezoneregion-africa' )->text();
1297                         $tzRegions['America'] = $context->msg( 'timezoneregion-america' )->text();
1298                         $tzRegions['Antarctica'] = $context->msg( 'timezoneregion-antarctica' )->text();
1299                         $tzRegions['Arctic'] = $context->msg( 'timezoneregion-arctic' )->text();
1300                         $tzRegions['Asia'] = $context->msg( 'timezoneregion-asia' )->text();
1301                         $tzRegions['Atlantic'] = $context->msg( 'timezoneregion-atlantic' )->text();
1302                         $tzRegions['Australia'] = $context->msg( 'timezoneregion-australia' )->text();
1303                         $tzRegions['Europe'] = $context->msg( 'timezoneregion-europe' )->text();
1304                         $tzRegions['Indian'] = $context->msg( 'timezoneregion-indian' )->text();
1305                         $tzRegions['Pacific'] = $context->msg( 'timezoneregion-pacific' )->text();
1306                         asort( $tzRegions );
1307
1308                         $prefill = array_fill_keys( array_values( $tzRegions ), array() );
1309                         $opt = array_merge( $opt, $prefill );
1310
1311                         $now = date_create( 'now' );
1312
1313                         foreach ( $tzs as $tz ) {
1314                                 $z = explode( '/', $tz, 2 );
1315
1316                                 # timezone_identifiers_list() returns a number of
1317                                 # backwards-compatibility entries. This filters them out of the
1318                                 # list presented to the user.
1319                                 if ( count( $z ) != 2 || !array_key_exists( $z[0], $tzRegions ) ) {
1320                                         continue;
1321                                 }
1322
1323                                 # Localize region
1324                                 $z[0] = $tzRegions[$z[0]];
1325
1326                                 $minDiff = floor( timezone_offset_get( timezone_open( $tz ), $now ) / 60 );
1327
1328                                 $display = str_replace( '_', ' ', $z[0] . '/' . $z[1] );
1329                                 $value = "ZoneInfo|$minDiff|$tz";
1330
1331                                 $opt[$z[0]][$display] = $value;
1332                         }
1333                 }
1334                 return $opt;
1335         }
1336
1337         /**
1338          * @param $value
1339          * @param $alldata
1340          * @return int
1341          */
1342         static function filterIntval( $value, $alldata ) {
1343                 return intval( $value );
1344         }
1345
1346         /**
1347          * @param $tz
1348          * @param $alldata
1349          * @return string
1350          */
1351         static function filterTimezoneInput( $tz, $alldata ) {
1352                 $data = explode( '|', $tz, 3 );
1353                 switch ( $data[0] ) {
1354                         case 'ZoneInfo':
1355                         case 'System':
1356                                 return $tz;
1357                         default:
1358                                 $data = explode( ':', $tz, 2 );
1359                                 if ( count( $data ) == 2 ) {
1360                                         $data[0] = intval( $data[0] );
1361                                         $data[1] = intval( $data[1] );
1362                                         $minDiff = abs( $data[0] ) * 60 + $data[1];
1363                                         if ( $data[0] < 0 ) {
1364                                                 $minDiff = - $minDiff;
1365                                         }
1366                                 } else {
1367                                         $minDiff = intval( $data[0] ) * 60;
1368                                 }
1369
1370                                 # Max is +14:00 and min is -12:00, see:
1371                                 # http://en.wikipedia.org/wiki/Timezone
1372                                 $minDiff = min( $minDiff, 840 );  # 14:00
1373                                 $minDiff = max( $minDiff, - 720 ); # -12:00
1374                                 return 'Offset|' . $minDiff;
1375                 }
1376         }
1377
1378         /**
1379          * Handle the form submission if everything validated properly
1380          *
1381          * @param $formData
1382          * @param $form PreferencesForm
1383          * @param $entryPoint string
1384          * @return bool|Status|string
1385          */
1386         static function tryFormSubmit( $formData, $form, $entryPoint = 'internal' ) {
1387                 global $wgHiddenPrefs, $wgAuth;
1388
1389                 $user = $form->getModifiedUser();
1390                 $result = true;
1391
1392                 // Filter input
1393                 foreach ( array_keys( $formData ) as $name ) {
1394                         if ( isset( self::$saveFilters[$name] ) ) {
1395                                 $formData[$name] =
1396                                         call_user_func( self::$saveFilters[$name], $formData[$name], $formData );
1397                         }
1398                 }
1399
1400                 // Stuff that shouldn't be saved as a preference.
1401                 $saveBlacklist = array(
1402                         'realname',
1403                         'emailaddress',
1404                 );
1405
1406                 // Fortunately, the realname field is MUCH simpler
1407                 if ( !in_array( 'realname', $wgHiddenPrefs ) ) {
1408                         $realName = $formData['realname'];
1409                         $user->setRealName( $realName );
1410                 }
1411
1412                 foreach ( $saveBlacklist as $b ) {
1413                         unset( $formData[$b] );
1414                 }
1415
1416                 # If users have saved a value for a preference which has subsequently been disabled
1417                 # via $wgHiddenPrefs, we don't want to destroy that setting in case the preference
1418                 # is subsequently re-enabled
1419                 # TODO: maintenance script to actually delete these
1420                 foreach ( $wgHiddenPrefs as $pref ) {
1421                         # If the user has not set a non-default value here, the default will be returned
1422                         # and subsequently discarded
1423                         $formData[$pref] = $user->getOption( $pref, null, true );
1424                 }
1425
1426                 // Keep old preferences from interfering due to back-compat code, etc.
1427                 $user->resetOptions( 'unused', $form->getContext() );
1428
1429                 foreach ( $formData as $key => $value ) {
1430                         $user->setOption( $key, $value );
1431                 }
1432
1433                 $user->saveSettings();
1434
1435                 $wgAuth->updateExternalDB( $user );
1436
1437                 return $result;
1438         }
1439
1440         /**
1441          * @param $formData
1442          * @param $form PreferencesForm
1443          * @return Status
1444          */
1445         public static function tryUISubmit( $formData, $form ) {
1446                 $res = self::tryFormSubmit( $formData, $form, 'ui' );
1447
1448                 if ( $res ) {
1449                         $urlOptions = array( 'success' => 1 );
1450
1451                         if ( $res === 'eauth' ) {
1452                                 $urlOptions['eauth'] = 1;
1453                         }
1454
1455                         $urlOptions += $form->getExtraSuccessRedirectParameters();
1456
1457                         $url = $form->getTitle()->getFullURL( $urlOptions );
1458
1459                         $form->getContext()->getOutput()->redirect( $url );
1460                 }
1461
1462                 return Status::newGood();
1463         }
1464
1465         /**
1466          * Try to set a user's email address.
1467          * This does *not* try to validate the address.
1468          * Caller is responsible for checking $wgAuth.
1469          *
1470          * @deprecated in 1.20; use User::setEmailWithConfirmation() instead.
1471          * @param $user User
1472          * @param string $newaddr New email address
1473          * @return Array (true on success or Status on failure, info string)
1474          */
1475         public static function trySetUserEmail( User $user, $newaddr ) {
1476                 wfDeprecated( __METHOD__, '1.20' );
1477
1478                 $result = $user->setEmailWithConfirmation( $newaddr );
1479                 if ( $result->isGood() ) {
1480                         return array( true, $result->value );
1481                 } else {
1482                         return array( $result, 'mailerror' );
1483                 }
1484         }
1485
1486         /**
1487          * @deprecated in 1.19
1488          * @param $user User
1489          * @return array
1490          */
1491         public static function loadOldSearchNs( $user ) {
1492                 wfDeprecated( __METHOD__, '1.19' );
1493
1494                 $searchableNamespaces = SearchEngine::searchableNamespaces();
1495                 // Back compat with old format
1496                 $arr = array();
1497
1498                 foreach ( $searchableNamespaces as $ns => $name ) {
1499                         if ( $user->getOption( 'searchNs' . $ns ) ) {
1500                                 $arr[] = $ns;
1501                         }
1502                 }
1503
1504                 return $arr;
1505         }
1506 }
1507
1508 /** Some tweaks to allow js prefs to work */
1509 class PreferencesForm extends HTMLForm {
1510         // Override default value from HTMLForm
1511         protected $mSubSectionBeforeFields = false;
1512
1513         private $modifiedUser;
1514
1515         /**
1516          * @param $user User
1517          */
1518         public function setModifiedUser( $user ) {
1519                 $this->modifiedUser = $user;
1520         }
1521
1522         /**
1523          * @return User
1524          */
1525         public function getModifiedUser() {
1526                 if ( $this->modifiedUser === null ) {
1527                         return $this->getUser();
1528                 } else {
1529                         return $this->modifiedUser;
1530                 }
1531         }
1532
1533         /**
1534          * Get extra parameters for the query string when redirecting after
1535          * successful save.
1536          *
1537          * @return array()
1538          */
1539         public function getExtraSuccessRedirectParameters() {
1540                 return array();
1541         }
1542
1543         /**
1544          * @param $html string
1545          * @return String
1546          */
1547         function wrapForm( $html ) {
1548                 $html = Xml::tags( 'div', array( 'id' => 'preferences' ), $html );
1549
1550                 return parent::wrapForm( $html );
1551         }
1552
1553         /**
1554          * @return String
1555          */
1556         function getButtons() {
1557                 $html = parent::getButtons();
1558
1559                 $t = SpecialPage::getTitleFor( 'Preferences', 'reset' );
1560
1561                 $html .= "\n" . Linker::link( $t, $this->msg( 'restoreprefs' )->escaped() );
1562
1563                 $html = Xml::tags( 'div', array( 'class' => 'mw-prefs-buttons' ), $html );
1564
1565                 return $html;
1566         }
1567
1568         /**
1569          * Separate multi-option preferences into multiple preferences, since we
1570          * have to store them separately
1571          * @param $data array
1572          * @return array
1573          */
1574         function filterDataForSubmit( $data ) {
1575                 foreach ( $this->mFlatFields as $fieldname => $field ) {
1576                         if ( $field instanceof HTMLNestedFilterable ) {
1577                                 $info = $field->mParams;
1578                                 $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $fieldname;
1579                                 foreach ( $field->filterDataForSubmit( $data[$fieldname] ) as $key => $value ) {
1580                                         $data["$prefix$key"] = $value;
1581                                 }
1582                                 unset( $data[$fieldname] );
1583                         }
1584                 }
1585
1586                 return $data;
1587         }
1588
1589         /**
1590          * Get the whole body of the form.
1591          * @return string
1592          */
1593         function getBody() {
1594                 return $this->displaySection( $this->mFieldTree, '', 'mw-prefsection-' );
1595         }
1596
1597         /**
1598          * Get the "<legend>" for a given section key. Normally this is the
1599          * prefs-$key message but we'll allow extensions to override it.
1600          * @param $key string
1601          * @return string
1602          */
1603         function getLegend( $key ) {
1604                 $legend = parent::getLegend( $key );
1605                 wfRunHooks( 'PreferencesGetLegend', array( $this, $key, &$legend ) );
1606                 return $legend;
1607         }
1608 }