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         /** @var array */
  50         protected static $defaultPreferences = null;
  51
  52         /** @var array */
  53         protected static $saveFilters = array(
  54                 'timecorrection' => array( 'Preferences', 'filterTimezoneInput' ),
  55                 'cols' => array( 'Preferences', 'filterIntval' ),
  56                 'rows' => array( 'Preferences', 'filterIntval' ),
  57                 'rclimit' => array( 'Preferences', 'filterIntval' ),
  58                 'wllimit' => array( 'Preferences', 'filterIntval' ),
  59                 'searchlimit' => array( 'Preferences', 'filterIntval' ),
  60         );
  61
  62         // Stuff that shouldn't be saved as a preference.
  63         private static $saveBlacklist = array(
  64                 'realname',
  65                 'emailaddress',
  66         );
  67
  68         /**
  69          * @return array
  70          */
  71         static function getSaveBlacklist() {
  72                 return self::$saveBlacklist;
  73         }
  74
  75         /**
  76          * @throws MWException
  77          * @param User $user
  78          * @param IContextSource $context
  79          * @return array|null
  80          */
  81         static function getPreferences( $user, IContextSource $context ) {
  82                 if ( self::$defaultPreferences ) {
  83                         return self::$defaultPreferences;
  84                 }
  85
  86                 $defaultPreferences = array();
  87
  88                 self::profilePreferences( $user, $context, $defaultPreferences );
  89                 self::skinPreferences( $user, $context, $defaultPreferences );
  90                 self::datetimePreferences( $user, $context, $defaultPreferences );
  91                 self::filesPreferences( $user, $context, $defaultPreferences );
  92                 self::renderingPreferences( $user, $context, $defaultPreferences );
  93                 self::editingPreferences( $user, $context, $defaultPreferences );
  94                 self::rcPreferences( $user, $context, $defaultPreferences );
  95                 self::watchlistPreferences( $user, $context, $defaultPreferences );
  96                 self::searchPreferences( $user, $context, $defaultPreferences );
  97                 self::miscPreferences( $user, $context, $defaultPreferences );
  98
  99                 Hooks::run( 'GetPreferences', array( $user, &$defaultPreferences ) );
 100
 101                 self::loadPreferenceValues( $user, $context, $defaultPreferences );
 102                 self::$defaultPreferences = $defaultPreferences;
 103                 return $defaultPreferences;
 104         }
 105
 106         /**
 107          * Loads existing values for a given array of preferences
 108          * @throws MWException
 109          * @param User $user
 110          * @param IContextSource $context
 111          * @param array $defaultPreferences Array to load values for
 112          * @return array|null
 113          */
 114         static function loadPreferenceValues( $user, $context, &$defaultPreferences ) {
 115                 ## Remove preferences that wikis don't want to use
 116                 foreach ( $context->getConfig()->get( 'HiddenPrefs' ) as $pref ) {
 117                         if ( isset( $defaultPreferences[$pref] ) ) {
 118                                 unset( $defaultPreferences[$pref] );
 119                         }
 120                 }
 121
 122                 ## Make sure that form fields have their parent set. See bug 41337.
 123                 $dummyForm = new HTMLForm( array(), $context );
 124
 125                 $disable = !$user->isAllowed( 'editmyoptions' );
 126
 127                 ## Prod in defaults from the user
 128                 foreach ( $defaultPreferences as $name => &$info ) {
 129                         $prefFromUser = self::getOptionFromUser( $name, $info, $user );
 130                         if ( $disable && !in_array( $name, self::$saveBlacklist ) ) {
 131                                 $info['disabled'] = 'disabled';
 132                         }
 133                         $field = HTMLForm::loadInputFromParameters( $name, $info, $dummyForm ); // For validation
 134                         $defaultOptions = User::getDefaultOptions();
 135                         $globalDefault = isset( $defaultOptions[$name] )
 136                                 ? $defaultOptions[$name]
 137                                 : null;
 138
 139                         // If it validates, set it as the default
 140                         if ( isset( $info['default'] ) ) {
 141                                 // Already set, no problem
 142                                 continue;
 143                         } elseif ( !is_null( $prefFromUser ) && // Make sure we're not just pulling nothing
 144                                         $field->validate( $prefFromUser, $user->getOptions() ) === true ) {
 145                                 $info['default'] = $prefFromUser;
 146                         } elseif ( $field->validate( $globalDefault, $user->getOptions() ) === true ) {
 147                                 $info['default'] = $globalDefault;
 148                         } else {
 149                                 throw new MWException( "Global default '$globalDefault' is invalid for field $name" );
 150                         }
 151                 }
 152
 153                 return $defaultPreferences;
 154         }
 155
 156         /**
 157          * Pull option from a user account. Handles stuff like array-type preferences.
 158          *
 159          * @param string $name
 160          * @param array $info
 161          * @param User $user
 162          * @return array|string
 163          */
 164         static function getOptionFromUser( $name, $info, $user ) {
 165                 $val = $user->getOption( $name );
 166
 167                 // Handling for multiselect preferences
 168                 if ( ( isset( $info['type'] ) && $info['type'] == 'multiselect' ) ||
 169                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLMultiSelectField' ) ) {
 170                         $options = HTMLFormField::flattenOptions( $info['options'] );
 171                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 172                         $val = array();
 173
 174                         foreach ( $options as $value ) {
 175                                 if ( $user->getOption( "$prefix$value" ) ) {
 176                                         $val[] = $value;
 177                                 }
 178                         }
 179                 }
 180
 181                 // Handling for checkmatrix preferences
 182                 if ( ( isset( $info['type'] ) && $info['type'] == 'checkmatrix' ) ||
 183                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLCheckMatrix' ) ) {
 184                         $columns = HTMLFormField::flattenOptions( $info['columns'] );
 185                         $rows = HTMLFormField::flattenOptions( $info['rows'] );
 186                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 187                         $val = array();
 188
 189                         foreach ( $columns as $column ) {
 190                                 foreach ( $rows as $row ) {
 191                                         if ( $user->getOption( "$prefix$column-$row" ) ) {
 192                                                 $val[] = "$column-$row";
 193                                         }
 194                                 }
 195                         }
 196                 }
 197
 198                 return $val;
 199         }
 200
 201         /**
 202          * @param User $user
 203          * @param IContextSource $context
 204          * @param array $defaultPreferences
 205          * @return void
 206          */
 207         static function profilePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 208                 global $wgAuth, $wgContLang, $wgParser;
 209
 210                 $config = $context->getConfig();
 211                 // retrieving user name for GENDER and misc.
 212                 $userName = $user->getName();
 213
 214                 ## User info #####################################
 215                 // Information panel
 216                 $defaultPreferences['username'] = array(
 217                         'type' => 'info',
 218                         'label-message' => array( 'username', $userName ),
 219                         'default' => $userName,
 220                         'section' => 'personal/info',
 221                 );
 222
 223                 # Get groups to which the user belongs
 224                 $userEffectiveGroups = $user->getEffectiveGroups();
 225                 $userGroups = $userMembers = array();
 226                 foreach ( $userEffectiveGroups as $ueg ) {
 227                         if ( $ueg == '*' ) {
 228                                 // Skip the default * group, seems useless here
 229                                 continue;
 230                         }
 231                         $groupName = User::getGroupName( $ueg );
 232                         $userGroups[] = User::makeGroupLinkHTML( $ueg, $groupName );
 233
 234                         $memberName = User::getGroupMember( $ueg, $userName );
 235                         $userMembers[] = User::makeGroupLinkHTML( $ueg, $memberName );
 236                 }
 237                 asort( $userGroups );
 238                 asort( $userMembers );
 239
 240                 $lang = $context->getLanguage();
 241
 242                 $defaultPreferences['usergroups'] = array(
 243                         'type' => 'info',
 244                         'label' => $context->msg( 'prefs-memberingroups' )->numParams(
 245                                 count( $userGroups ) )->params( $userName )->parse(),
 246                         'default' => $context->msg( 'prefs-memberingroups-type' )
 247                                 ->rawParams( $lang->commaList( $userGroups ), $lang->commaList( $userMembers ) )
 248                                 ->escaped(),
 249                         'raw' => true,
 250                         'section' => 'personal/info',
 251                 );
 252
 253                 $editCount = Linker::link( SpecialPage::getTitleFor( "Contributions", $userName ),
 254                         $lang->formatNum( $user->getEditCount() ) );
 255
 256                 $defaultPreferences['editcount'] = array(
 257                         'type' => 'info',
 258                         'raw' => true,
 259                         'label-message' => 'prefs-edits',
 260                         'default' => $editCount,
 261                         'section' => 'personal/info',
 262                 );
 263
 264                 if ( $user->getRegistration() ) {
 265                         $displayUser = $context->getUser();
 266                         $userRegistration = $user->getRegistration();
 267                         $defaultPreferences['registrationdate'] = array(
 268                                 'type' => 'info',
 269                                 'label-message' => 'prefs-registration',
 270                                 'default' => $context->msg(
 271                                         'prefs-registration-date-time',
 272                                         $lang->userTimeAndDate( $userRegistration, $displayUser ),
 273                                         $lang->userDate( $userRegistration, $displayUser ),
 274                                         $lang->userTime( $userRegistration, $displayUser )
 275                                 )->parse(),
 276                                 'section' => 'personal/info',
 277                         );
 278                 }
 279
 280                 $canViewPrivateInfo = $user->isAllowed( 'viewmyprivateinfo' );
 281                 $canEditPrivateInfo = $user->isAllowed( 'editmyprivateinfo' );
 282
 283                 // Actually changeable stuff
 284                 $defaultPreferences['realname'] = array(
 285                         // (not really "private", but still shouldn't be edited without permission)
 286                         'type' => $canEditPrivateInfo && $wgAuth->allowPropChange( 'realname' ) ? 'text' : 'info',
 287                         'default' => $user->getRealName(),
 288                         'section' => 'personal/info',
 289                         'label-message' => 'yourrealname',
 290                         'help-message' => 'prefs-help-realname',
 291                 );
 292
 293                 if ( $canEditPrivateInfo && $wgAuth->allowPasswordChange() ) {
 294                         $link = Linker::link( SpecialPage::getTitleFor( 'ChangePassword' ),
 295                                 $context->msg( 'prefs-resetpass' )->escaped(), array(),
 296                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ) );
 297
 298                         $defaultPreferences['password'] = array(
 299                                 'type' => 'info',
 300                                 'raw' => true,
 301                                 'default' => $link,
 302                                 'label-message' => 'yourpassword',
 303                                 'section' => 'personal/info',
 304                         );
 305                 }
 306                 // Only show prefershttps if secure login is turned on
 307                 if ( $config->get( 'SecureLogin' ) && wfCanIPUseHTTPS( $context->getRequest()->getIP() ) ) {
 308                         $defaultPreferences['prefershttps'] = array(
 309                                 'type' => 'toggle',
 310                                 'label-message' => 'tog-prefershttps',
 311                                 'help-message' => 'prefs-help-prefershttps',
 312                                 'section' => 'personal/info'
 313                         );
 314                 }
 315
 316                 // Language
 317                 $languages = Language::fetchLanguageNames( null, 'mw' );
 318                 $languageCode = $config->get( 'LanguageCode' );
 319                 if ( !array_key_exists( $languageCode, $languages ) ) {
 320                         $languages[$languageCode] = $languageCode;
 321                 }
 322                 ksort( $languages );
 323
 324                 $options = array();
 325                 foreach ( $languages as $code => $name ) {
 326                         $display = wfBCP47( $code ) . ' - ' . $name;
 327                         $options[$display] = $code;
 328                 }
 329                 $defaultPreferences['language'] = array(
 330                         'type' => 'select',
 331                         'section' => 'personal/i18n',
 332                         'options' => $options,
 333                         'label-message' => 'yourlanguage',
 334                 );
 335
 336                 $defaultPreferences['gender'] = array(
 337                         'type' => 'radio',
 338                         'section' => 'personal/i18n',
 339                         'options' => array(
 340                                 $context->msg( 'parentheses' )
 341                                         ->params( $context->msg( 'gender-unknown' )->plain() )
 342                                         ->escaped() => 'unknown',
 343                                 $context->msg( 'gender-female' )->escaped() => 'female',
 344                                 $context->msg( 'gender-male' )->escaped() => 'male',
 345                         ),
 346                         'label-message' => 'yourgender',
 347                         'help-message' => 'prefs-help-gender',
 348                 );
 349
 350                 // see if there are multiple language variants to choose from
 351                 if ( !$config->get( 'DisableLangConversion' ) ) {
 352                         foreach ( LanguageConverter::$languagesWithVariants as $langCode ) {
 353                                 if ( $langCode == $wgContLang->getCode() ) {
 354                                         $variants = $wgContLang->getVariants();
 355
 356                                         if ( count( $variants ) <= 1 ) {
 357                                                 continue;
 358                                         }
 359
 360                                         $variantArray = array();
 361                                         foreach ( $variants as $v ) {
 362                                                 $v = str_replace( '_', '-', strtolower( $v ) );
 363                                                 $variantArray[$v] = $lang->getVariantname( $v, false );
 364                                         }
 365
 366                                         $options = array();
 367                                         foreach ( $variantArray as $code => $name ) {
 368                                                 $display = wfBCP47( $code ) . ' - ' . $name;
 369                                                 $options[$display] = $code;
 370                                         }
 371
 372                                         $defaultPreferences['variant'] = array(
 373                                                 'label-message' => 'yourvariant',
 374                                                 'type' => 'select',
 375                                                 'options' => $options,
 376                                                 'section' => 'personal/i18n',
 377                                                 'help-message' => 'prefs-help-variant',
 378                                         );
 379                                 } else {
 380                                         $defaultPreferences["variant-$langCode"] = array(
 381                                                 'type' => 'api',
 382                                         );
 383                                 }
 384                         }
 385                 }
 386
 387                 // Stuff from Language::getExtraUserToggles()
 388                 // FIXME is this dead code? $extraUserToggles doesn't seem to be defined for any language
 389                 $toggles = $wgContLang->getExtraUserToggles();
 390
 391                 foreach ( $toggles as $toggle ) {
 392                         $defaultPreferences[$toggle] = array(
 393                                 'type' => 'toggle',
 394                                 'section' => 'personal/i18n',
 395                                 'label-message' => "tog-$toggle",
 396                         );
 397                 }
 398
 399                 // show a preview of the old signature first
 400                 $oldsigWikiText = $wgParser->preSaveTransform(
 401                         '~~~',
 402                         $context->getTitle(),
 403                         $user,
 404                         ParserOptions::newFromContext( $context )
 405                 );
 406                 $oldsigHTML = $context->getOutput()->parseInline( $oldsigWikiText, true, true );
 407                 $defaultPreferences['oldsig'] = array(
 408                         'type' => 'info',
 409                         'raw' => true,
 410                         'label-message' => 'tog-oldsig',
 411                         'default' => $oldsigHTML,
 412                         'section' => 'personal/signature',
 413                 );
 414                 $defaultPreferences['nickname'] = array(
 415                         'type' => $wgAuth->allowPropChange( 'nickname' ) ? 'text' : 'info',
 416                         'maxlength' => $config->get( 'MaxSigChars' ),
 417                         'label-message' => 'yournick',
 418                         'validation-callback' => array( 'Preferences', 'validateSignature' ),
 419                         'section' => 'personal/signature',
 420                         'filter-callback' => array( 'Preferences', 'cleanSignature' ),
 421                 );
 422                 $defaultPreferences['fancysig'] = array(
 423                         'type' => 'toggle',
 424                         'label-message' => 'tog-fancysig',
 425                         // show general help about signature at the bottom of the section
 426                         'help-message' => 'prefs-help-signature',
 427                         'section' => 'personal/signature'
 428                 );
 429
 430                 ## Email stuff
 431
 432                 if ( $config->get( 'EnableEmail' ) ) {
 433                         if ( $canViewPrivateInfo ) {
 434                                 $helpMessages[] = $config->get( 'EmailConfirmToEdit' )
 435                                                 ? 'prefs-help-email-required'
 436                                                 : 'prefs-help-email';
 437
 438                                 if ( $config->get( 'EnableUserEmail' ) ) {
 439                                         // additional messages when users can send email to each other
 440                                         $helpMessages[] = 'prefs-help-email-others';
 441                                 }
 442
 443                                 $emailAddress = $user->getEmail() ? htmlspecialchars( $user->getEmail() ) : '';
 444                                 if ( $canEditPrivateInfo && $wgAuth->allowPropChange( 'emailaddress' ) ) {
 445                                         $link = Linker::link(
 446                                                 SpecialPage::getTitleFor( 'ChangeEmail' ),
 447                                                 $context->msg( $user->getEmail() ? 'prefs-changeemail' : 'prefs-setemail' )->escaped(),
 448                                                 array(),
 449                                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ) );
 450
 451                                         $emailAddress .= $emailAddress == '' ? $link : (
 452                                                 $context->msg( 'word-separator' )->escaped()
 453                                                 . $context->msg( 'parentheses' )->rawParams( $link )->escaped()
 454                                         );
 455                                 }
 456
 457                                 $defaultPreferences['emailaddress'] = array(
 458                                         'type' => 'info',
 459                                         'raw' => true,
 460                                         'default' => $emailAddress,
 461                                         'label-message' => 'youremail',
 462                                         'section' => 'personal/email',
 463                                         'help-messages' => $helpMessages,
 464                                         # 'cssclass' chosen below
 465                                 );
 466                         }
 467
 468                         $disableEmailPrefs = false;
 469
 470                         if ( $config->get( 'EmailAuthentication' ) ) {
 471                                 $emailauthenticationclass = 'mw-email-not-authenticated';
 472                                 if ( $user->getEmail() ) {
 473                                         if ( $user->getEmailAuthenticationTimestamp() ) {
 474                                                 // date and time are separate parameters to facilitate localisation.
 475                                                 // $time is kept for backward compat reasons.
 476                                                 // 'emailauthenticated' is also used in SpecialConfirmemail.php
 477                                                 $displayUser = $context->getUser();
 478                                                 $emailTimestamp = $user->getEmailAuthenticationTimestamp();
 479                                                 $time = $lang->userTimeAndDate( $emailTimestamp, $displayUser );
 480                                                 $d = $lang->userDate( $emailTimestamp, $displayUser );
 481                                                 $t = $lang->userTime( $emailTimestamp, $displayUser );
 482                                                 $emailauthenticated = $context->msg( 'emailauthenticated',
 483                                                         $time, $d, $t )->parse() . '<br />';
 484                                                 $disableEmailPrefs = false;
 485                                                 $emailauthenticationclass = 'mw-email-authenticated';
 486                                         } else {
 487                                                 $disableEmailPrefs = true;
 488                                                 $emailauthenticated = $context->msg( 'emailnotauthenticated' )->parse() . '<br />' .
 489                                                         Linker::linkKnown(
 490                                                                 SpecialPage::getTitleFor( 'Confirmemail' ),
 491                                                                 $context->msg( 'emailconfirmlink' )->escaped()
 492                                                         ) . '<br />';
 493                                                 $emailauthenticationclass = "mw-email-not-authenticated";
 494                                         }
 495                                 } else {
 496                                         $disableEmailPrefs = true;
 497                                         $emailauthenticated = $context->msg( 'noemailprefs' )->escaped();
 498                                         $emailauthenticationclass = 'mw-email-none';
 499                                 }
 500
 501                                 if ( $canViewPrivateInfo ) {
 502                                         $defaultPreferences['emailauthentication'] = array(
 503                                                 'type' => 'info',
 504                                                 'raw' => true,
 505                                                 'section' => 'personal/email',
 506                                                 'label-message' => 'prefs-emailconfirm-label',
 507                                                 'default' => $emailauthenticated,
 508                                                 # Apply the same CSS class used on the input to the message:
 509                                                 'cssclass' => $emailauthenticationclass,
 510                                         );
 511                                         $defaultPreferences['emailaddress']['cssclass'] = $emailauthenticationclass;
 512                                 }
 513                         }
 514
 515                         if ( $config->get( 'EnableUserEmail' ) && $user->isAllowed( 'sendemail' ) ) {
 516                                 $defaultPreferences['disablemail'] = array(
 517                                         'type' => 'toggle',
 518                                         'invert' => true,
 519                                         'section' => 'personal/email',
 520                                         'label-message' => 'allowemail',
 521                                         'disabled' => $disableEmailPrefs,
 522                                 );
 523                                 $defaultPreferences['ccmeonemails'] = array(
 524                                         'type' => 'toggle',
 525                                         'section' => 'personal/email',
 526                                         'label-message' => 'tog-ccmeonemails',
 527                                         'disabled' => $disableEmailPrefs,
 528                                 );
 529                         }
 530
 531                         if ( $config->get( 'EnotifWatchlist' ) ) {
 532                                 $defaultPreferences['enotifwatchlistpages'] = array(
 533                                         'type' => 'toggle',
 534                                         'section' => 'personal/email',
 535                                         'label-message' => 'tog-enotifwatchlistpages',
 536                                         'disabled' => $disableEmailPrefs,
 537                                 );
 538                         }
 539                         if ( $config->get( 'EnotifUserTalk' ) ) {
 540                                 $defaultPreferences['enotifusertalkpages'] = array(
 541                                         'type' => 'toggle',
 542                                         'section' => 'personal/email',
 543                                         'label-message' => 'tog-enotifusertalkpages',
 544                                         'disabled' => $disableEmailPrefs,
 545                                 );
 546                         }
 547                         if ( $config->get( 'EnotifUserTalk' ) || $config->get( 'EnotifWatchlist' ) ) {
 548                                 $defaultPreferences['enotifminoredits'] = array(
 549                                         'type' => 'toggle',
 550                                         'section' => 'personal/email',
 551                                         'label-message' => 'tog-enotifminoredits',
 552                                         'disabled' => $disableEmailPrefs,
 553                                 );
 554
 555                                 if ( $config->get( 'EnotifRevealEditorAddress' ) ) {
 556                                         $defaultPreferences['enotifrevealaddr'] = array(
 557                                                 'type' => 'toggle',
 558                                                 'section' => 'personal/email',
 559                                                 'label-message' => 'tog-enotifrevealaddr',
 560                                                 'disabled' => $disableEmailPrefs,
 561                                         );
 562                                 }
 563                         }
 564                 }
 565         }
 566
 567         /**
 568          * @param User $user
 569          * @param IContextSource $context
 570          * @param array $defaultPreferences
 571          * @return void
 572          */
 573         static function skinPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 574                 ## Skin #####################################
 575
 576                 // Skin selector, if there is at least one valid skin
 577                 $skinOptions = self::generateSkinOptions( $user, $context );
 578                 if ( $skinOptions ) {
 579                         $defaultPreferences['skin'] = array(
 580                                 'type' => 'radio',
 581                                 'options' => $skinOptions,
 582                                 'label' => '&#160;',
 583                                 'section' => 'rendering/skin',
 584                         );
 585                 }
 586
 587                 $config = $context->getConfig();
 588                 $allowUserCss = $config->get( 'AllowUserCss' );
 589                 $allowUserJs = $config->get( 'AllowUserJs' );
 590                 # Create links to user CSS/JS pages for all skins
 591                 # This code is basically copied from generateSkinOptions().  It'd
 592                 # be nice to somehow merge this back in there to avoid redundancy.
 593                 if ( $allowUserCss || $allowUserJs ) {
 594                         $linkTools = array();
 595                         $userName = $user->getName();
 596
 597                         if ( $allowUserCss ) {
 598                                 $cssPage = Title::makeTitleSafe( NS_USER, $userName . '/common.css' );
 599                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
 600                         }
 601
 602                         if ( $allowUserJs ) {
 603                                 $jsPage = Title::makeTitleSafe( NS_USER, $userName . '/common.js' );
 604                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
 605                         }
 606
 607                         $defaultPreferences['commoncssjs'] = array(
 608                                 'type' => 'info',
 609                                 'raw' => true,
 610                                 'default' => $context->getLanguage()->pipeList( $linkTools ),
 611                                 'label-message' => 'prefs-common-css-js',
 612                                 'section' => 'rendering/skin',
 613                         );
 614                 }
 615         }
 616
 617         /**
 618          * @param User $user
 619          * @param IContextSource $context
 620          * @param array $defaultPreferences
 621          */
 622         static function filesPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 623                 ## Files #####################################
 624                 $defaultPreferences['imagesize'] = array(
 625                         'type' => 'select',
 626                         'options' => self::getImageSizes( $context ),
 627                         'label-message' => 'imagemaxsize',
 628                         'section' => 'rendering/files',
 629                 );
 630                 $defaultPreferences['thumbsize'] = array(
 631                         'type' => 'select',
 632                         'options' => self::getThumbSizes( $context ),
 633                         'label-message' => 'thumbsize',
 634                         'section' => 'rendering/files',
 635                 );
 636         }
 637
 638         /**
 639          * @param User $user
 640          * @param IContextSource $context
 641          * @param array $defaultPreferences
 642          * @return void
 643          */
 644         static function datetimePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 645                 ## Date and time #####################################
 646                 $dateOptions = self::getDateOptions( $context );
 647                 if ( $dateOptions ) {
 648                         $defaultPreferences['date'] = array(
 649                                 'type' => 'radio',
 650                                 'options' => $dateOptions,
 651                                 'label' => '&#160;',
 652                                 'section' => 'rendering/dateformat',
 653                         );
 654                 }
 655
 656                 // Info
 657                 $now = wfTimestampNow();
 658                 $lang = $context->getLanguage();
 659                 $nowlocal = Xml::element( 'span', array( 'id' => 'wpLocalTime' ),
 660                         $lang->time( $now, true ) );
 661                 $nowserver = $lang->time( $now, false ) .
 662                         Html::hidden( 'wpServerTime', (int)substr( $now, 8, 2 ) * 60 + (int)substr( $now, 10, 2 ) );
 663
 664                 $defaultPreferences['nowserver'] = array(
 665                         'type' => 'info',
 666                         'raw' => 1,
 667                         'label-message' => 'servertime',
 668                         'default' => $nowserver,
 669                         'section' => 'rendering/timeoffset',
 670                 );
 671
 672                 $defaultPreferences['nowlocal'] = array(
 673                         'type' => 'info',
 674                         'raw' => 1,
 675                         'label-message' => 'localtime',
 676                         'default' => $nowlocal,
 677                         'section' => 'rendering/timeoffset',
 678                 );
 679
 680                 // Grab existing pref.
 681                 $tzOffset = $user->getOption( 'timecorrection' );
 682                 $tz = explode( '|', $tzOffset, 3 );
 683
 684                 $tzOptions = self::getTimezoneOptions( $context );
 685
 686                 $tzSetting = $tzOffset;
 687                 if ( count( $tz ) > 1 && $tz[0] == 'Offset' ) {
 688                         $minDiff = $tz[1];
 689                         $tzSetting = sprintf( '%+03d:%02d', floor( $minDiff / 60 ), abs( $minDiff ) % 60 );
 690                 } elseif ( count( $tz ) > 1 && $tz[0] == 'ZoneInfo' &&
 691                         !in_array( $tzOffset, HTMLFormField::flattenOptions( $tzOptions ) )
 692                 ) {
 693                         # Timezone offset can vary with DST
 694                         $userTZ = timezone_open( $tz[2] );
 695                         if ( $userTZ !== false ) {
 696                                 $minDiff = floor( timezone_offset_get( $userTZ, date_create( 'now' ) ) / 60 );
 697                                 $tzSetting = "ZoneInfo|$minDiff|{$tz[2]}";
 698                         }
 699                 }
 700
 701                 $defaultPreferences['timecorrection'] = array(
 702                         'class' => 'HTMLSelectOrOtherField',
 703                         'label-message' => 'timezonelegend',
 704                         'options' => $tzOptions,
 705                         'default' => $tzSetting,
 706                         'size' => 20,
 707                         'section' => 'rendering/timeoffset',
 708                 );
 709         }
 710
 711         /**
 712          * @param User $user
 713          * @param IContextSource $context
 714          * @param array $defaultPreferences
 715          */
 716         static function renderingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 717                 ## Diffs ####################################
 718                 $defaultPreferences['diffonly'] = array(
 719                         'type' => 'toggle',
 720                         'section' => 'rendering/diffs',
 721                         'label-message' => 'tog-diffonly',
 722                 );
 723                 $defaultPreferences['norollbackdiff'] = array(
 724                         'type' => 'toggle',
 725                         'section' => 'rendering/diffs',
 726                         'label-message' => 'tog-norollbackdiff',
 727                 );
 728
 729                 ## Page Rendering ##############################
 730                 if ( $context->getConfig()->get( 'AllowUserCssPrefs' ) ) {
 731                         $defaultPreferences['underline'] = array(
 732                                 'type' => 'select',
 733                                 'options' => array(
 734                                         $context->msg( 'underline-never' )->text() => 0,
 735                                         $context->msg( 'underline-always' )->text() => 1,
 736                                         $context->msg( 'underline-default' )->text() => 2,
 737                                 ),
 738                                 'label-message' => 'tog-underline',
 739                                 'section' => 'rendering/advancedrendering',
 740                         );
 741                 }
 742
 743                 $stubThresholdValues = array( 50, 100, 500, 1000, 2000, 5000, 10000 );
 744                 $stubThresholdOptions = array( $context->msg( 'stub-threshold-disabled' )->text() => 0 );
 745                 foreach ( $stubThresholdValues as $value ) {
 746                         $stubThresholdOptions[$context->msg( 'size-bytes', $value )->text()] = $value;
 747                 }
 748
 749                 $defaultPreferences['stubthreshold'] = array(
 750                         'type' => 'select',
 751                         'section' => 'rendering/advancedrendering',
 752                         'options' => $stubThresholdOptions,
 753                         'label-raw' => $context->msg( 'stub-threshold' )->text(), // Raw HTML message. Yay?
 754                 );
 755
 756                 $defaultPreferences['showhiddencats'] = array(
 757                         'type' => 'toggle',
 758                         'section' => 'rendering/advancedrendering',
 759                         'label-message' => 'tog-showhiddencats'
 760                 );
 761
 762                 $defaultPreferences['numberheadings'] = array(
 763                         'type' => 'toggle',
 764                         'section' => 'rendering/advancedrendering',
 765                         'label-message' => 'tog-numberheadings',
 766                 );
 767         }
 768
 769         /**
 770          * @param User $user
 771          * @param IContextSource $context
 772          * @param array $defaultPreferences
 773          */
 774         static function editingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 775                 ## Editing #####################################
 776                 $defaultPreferences['editsectiononrightclick'] = array(
 777                         'type' => 'toggle',
 778                         'section' => 'editing/advancedediting',
 779                         'label-message' => 'tog-editsectiononrightclick',
 780                 );
 781                 $defaultPreferences['editondblclick'] = array(
 782                         'type' => 'toggle',
 783                         'section' => 'editing/advancedediting',
 784                         'label-message' => 'tog-editondblclick',
 785                 );
 786
 787                 if ( $context->getConfig()->get( 'AllowUserCssPrefs' ) ) {
 788                         $defaultPreferences['editfont'] = array(
 789                                 'type' => 'select',
 790                                 'section' => 'editing/editor',
 791                                 'label-message' => 'editfont-style',
 792                                 'options' => array(
 793                                         $context->msg( 'editfont-default' )->text() => 'default',
 794                                         $context->msg( 'editfont-monospace' )->text() => 'monospace',
 795                                         $context->msg( 'editfont-sansserif' )->text() => 'sans-serif',
 796                                         $context->msg( 'editfont-serif' )->text() => 'serif',
 797                                 )
 798                         );
 799                 }
 800                 $defaultPreferences['cols'] = array(
 801                         'type' => 'int',
 802                         'label-message' => 'columns',
 803                         'section' => 'editing/editor',
 804                         'min' => 4,
 805                         'max' => 1000,
 806                 );
 807                 $defaultPreferences['rows'] = array(
 808                         'type' => 'int',
 809                         'label-message' => 'rows',
 810                         'section' => 'editing/editor',
 811                         'min' => 4,
 812                         'max' => 1000,
 813                 );
 814                 if ( $user->isAllowed( 'minoredit' ) ) {
 815                         $defaultPreferences['minordefault'] = array(
 816                                 'type' => 'toggle',
 817                                 'section' => 'editing/editor',
 818                                 'label-message' => 'tog-minordefault',
 819                         );
 820                 }
 821                 $defaultPreferences['forceeditsummary'] = array(
 822                         'type' => 'toggle',
 823                         'section' => 'editing/editor',
 824                         'label-message' => 'tog-forceeditsummary',
 825                 );
 826                 $defaultPreferences['useeditwarning'] = array(
 827                         'type' => 'toggle',
 828                         'section' => 'editing/editor',
 829                         'label-message' => 'tog-useeditwarning',
 830                 );
 831                 $defaultPreferences['showtoolbar'] = array(
 832                         'type' => 'toggle',
 833                         'section' => 'editing/editor',
 834                         'label-message' => 'tog-showtoolbar',
 835                 );
 836
 837                 $defaultPreferences['previewonfirst'] = array(
 838                         'type' => 'toggle',
 839                         'section' => 'editing/preview',
 840                         'label-message' => 'tog-previewonfirst',
 841                 );
 842                 $defaultPreferences['previewontop'] = array(
 843                         'type' => 'toggle',
 844                         'section' => 'editing/preview',
 845                         'label-message' => 'tog-previewontop',
 846                 );
 847                 $defaultPreferences['uselivepreview'] = array(
 848                         'type' => 'toggle',
 849                         'section' => 'editing/preview',
 850                         'label-message' => 'tog-uselivepreview',
 851                 );
 852
 853         }
 854
 855         /**
 856          * @param User $user
 857          * @param IContextSource $context
 858          * @param array $defaultPreferences
 859          */
 860         static function rcPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 861                 $config = $context->getConfig();
 862                 $rcMaxAge = $config->get( 'RCMaxAge' );
 863                 ## RecentChanges #####################################
 864                 $defaultPreferences['rcdays'] = array(
 865                         'type' => 'float',
 866                         'label-message' => 'recentchangesdays',
 867                         'section' => 'rc/displayrc',
 868                         'min' => 1,
 869                         'max' => ceil( $rcMaxAge / ( 3600 * 24 ) ),
 870                         'help' => $context->msg( 'recentchangesdays-max' )->numParams(
 871                                 ceil( $rcMaxAge / ( 3600 * 24 ) ) )->escaped()
 872                 );
 873                 $defaultPreferences['rclimit'] = array(
 874                         'type' => 'int',
 875                         'label-message' => 'recentchangescount',
 876                         'help-message' => 'prefs-help-recentchangescount',
 877                         'section' => 'rc/displayrc',
 878                 );
 879                 $defaultPreferences['usenewrc'] = array(
 880                         'type' => 'toggle',
 881                         'label-message' => 'tog-usenewrc',
 882                         'section' => 'rc/advancedrc',
 883                 );
 884                 $defaultPreferences['hideminor'] = array(
 885                         'type' => 'toggle',
 886                         'label-message' => 'tog-hideminor',
 887                         'section' => 'rc/advancedrc',
 888                 );
 889
 890                 if ( $user->useRCPatrol() ) {
 891                         $defaultPreferences['hidepatrolled'] = array(
 892                                 'type' => 'toggle',
 893                                 'section' => 'rc/advancedrc',
 894                                 'label-message' => 'tog-hidepatrolled',
 895                         );
 896                         $defaultPreferences['newpageshidepatrolled'] = array(
 897                                 'type' => 'toggle',
 898                                 'section' => 'rc/advancedrc',
 899                                 'label-message' => 'tog-newpageshidepatrolled',
 900                         );
 901                 }
 902
 903                 if ( $config->get( 'RCShowWatchingUsers' ) ) {
 904                         $defaultPreferences['shownumberswatching'] = array(
 905                                 'type' => 'toggle',
 906                                 'section' => 'rc/advancedrc',
 907                                 'label-message' => 'tog-shownumberswatching',
 908                         );
 909                 }
 910         }
 911
 912         /**
 913          * @param User $user
 914          * @param IContextSource $context
 915          * @param array $defaultPreferences
 916          */
 917         static function watchlistPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 918                 $config = $context->getConfig();
 919                 $watchlistdaysMax = ceil( $config->get( 'RCMaxAge' ) / ( 3600 * 24 ) );
 920
 921                 ## Watchlist #####################################
 922                 $defaultPreferences['watchlistdays'] = array(
 923                         'type' => 'float',
 924                         'min' => 0,
 925                         'max' => $watchlistdaysMax,
 926                         'section' => 'watchlist/displaywatchlist',
 927                         'help' => $context->msg( 'prefs-watchlist-days-max' )->numParams(
 928                                 $watchlistdaysMax )->escaped(),
 929                         'label-message' => 'prefs-watchlist-days',
 930                 );
 931                 $defaultPreferences['wllimit'] = array(
 932                         'type' => 'int',
 933                         'min' => 0,
 934                         'max' => 1000,
 935                         'label-message' => 'prefs-watchlist-edits',
 936                         'help' => $context->msg( 'prefs-watchlist-edits-max' )->escaped(),
 937                         'section' => 'watchlist/displaywatchlist',
 938                 );
 939                 $defaultPreferences['extendwatchlist'] = array(
 940                         'type' => 'toggle',
 941                         'section' => 'watchlist/advancedwatchlist',
 942                         'label-message' => 'tog-extendwatchlist',
 943                 );
 944                 $defaultPreferences['watchlisthideminor'] = array(
 945                         'type' => 'toggle',
 946                         'section' => 'watchlist/advancedwatchlist',
 947                         'label-message' => 'tog-watchlisthideminor',
 948                 );
 949                 $defaultPreferences['watchlisthidebots'] = array(
 950                         'type' => 'toggle',
 951                         'section' => 'watchlist/advancedwatchlist',
 952                         'label-message' => 'tog-watchlisthidebots',
 953                 );
 954                 $defaultPreferences['watchlisthideown'] = array(
 955                         'type' => 'toggle',
 956                         'section' => 'watchlist/advancedwatchlist',
 957                         'label-message' => 'tog-watchlisthideown',
 958                 );
 959                 $defaultPreferences['watchlisthideanons'] = array(
 960                         'type' => 'toggle',
 961                         'section' => 'watchlist/advancedwatchlist',
 962                         'label-message' => 'tog-watchlisthideanons',
 963                 );
 964                 $defaultPreferences['watchlisthideliu'] = array(
 965                         'type' => 'toggle',
 966                         'section' => 'watchlist/advancedwatchlist',
 967                         'label-message' => 'tog-watchlisthideliu',
 968                 );
 969
 970                 if ( $context->getConfig()->get( 'UseRCPatrol' ) ) {
 971                         $defaultPreferences['watchlisthidepatrolled'] = array(
 972                                 'type' => 'toggle',
 973                                 'section' => 'watchlist/advancedwatchlist',
 974                                 'label-message' => 'tog-watchlisthidepatrolled',
 975                         );
 976                 }
 977
 978                 $watchTypes = array(
 979                         'edit' => 'watchdefault',
 980                         'move' => 'watchmoves',
 981                         'delete' => 'watchdeletion'
 982                 );
 983
 984                 // Kinda hacky
 985                 if ( $user->isAllowed( 'createpage' ) || $user->isAllowed( 'createtalk' ) ) {
 986                         $watchTypes['read'] = 'watchcreations';
 987                 }
 988
 989                 if ( $user->isAllowed( 'rollback' ) ) {
 990                         $watchTypes['rollback'] = 'watchrollback';
 991                 }
 992
 993                 foreach ( $watchTypes as $action => $pref ) {
 994                         if ( $user->isAllowed( $action ) ) {
 995                                 // Messages:
 996                                 // tog-watchdefault, tog-watchmoves, tog-watchdeletion, tog-watchcreations
 997                                 // tog-watchrollback
 998                                 $defaultPreferences[$pref] = array(
 999                                         'type' => 'toggle',
1000                                         'section' => 'watchlist/advancedwatchlist',
1001                                         'label-message' => "tog-$pref",
1002                                 );
1003                         }
1004                 }
1005
1006                 if ( $config->get( 'EnableAPI' ) ) {
1007                         $defaultPreferences['watchlisttoken'] = array(
1008                                 'type' => 'api',
1009                         );
1010                         $defaultPreferences['watchlisttoken-info'] = array(
1011                                 'type' => 'info',
1012                                 'section' => 'watchlist/tokenwatchlist',
1013                                 'label-message' => 'prefs-watchlist-token',
1014                                 'default' => $user->getTokenFromOption( 'watchlisttoken' ),
1015                                 'help-message' => 'prefs-help-watchlist-token2',
1016                         );
1017                 }
1018         }
1019
1020         /**
1021          * @param User $user
1022          * @param IContextSource $context
1023          * @param array $defaultPreferences
1024          */
1025         static function searchPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1026                 foreach ( MWNamespace::getValidNamespaces() as $n ) {
1027                         $defaultPreferences['searchNs' . $n] = array(
1028                                 'type' => 'api',
1029                         );
1030                 }
1031         }
1032
1033         /**
1034          * Dummy, kept for backwards-compatibility.
1035          */
1036         static function miscPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1037         }
1038
1039         /**
1040          * @param User $user The User object
1041          * @param IContextSource $context
1042          * @return array Text/links to display as key; $skinkey as value
1043          */
1044         static function generateSkinOptions( $user, IContextSource $context ) {
1045                 $ret = array();
1046
1047                 $mptitle = Title::newMainPage();
1048                 $previewtext = $context->msg( 'skin-preview' )->escaped();
1049
1050                 # Only show skins that aren't disabled in $wgSkipSkins
1051                 $validSkinNames = Skin::getAllowedSkins();
1052
1053                 # Sort by UI skin name. First though need to update validSkinNames as sometimes
1054                 # the skinkey & UI skinname differ (e.g. "standard" skinkey is "Classic" in the UI).
1055                 foreach ( $validSkinNames as $skinkey => &$skinname ) {
1056                         $msg = $context->msg( "skinname-{$skinkey}" );
1057                         if ( $msg->exists() ) {
1058                                 $skinname = htmlspecialchars( $msg->text() );
1059                         }
1060                 }
1061                 asort( $validSkinNames );
1062
1063                 $config = $context->getConfig();
1064                 $defaultSkin = $config->get( 'DefaultSkin' );
1065                 $allowUserCss = $config->get( 'AllowUserCss' );
1066                 $allowUserJs = $config->get( 'AllowUserJs' );
1067
1068                 $foundDefault = false;
1069                 foreach ( $validSkinNames as $skinkey => $sn ) {
1070                         $linkTools = array();
1071
1072                         # Mark the default skin
1073                         if ( $skinkey == $defaultSkin ) {
1074                                 $linkTools[] = $context->msg( 'default' )->escaped();
1075                                 $foundDefault = true;
1076                         }
1077
1078                         # Create preview link
1079                         $mplink = htmlspecialchars( $mptitle->getLocalURL( array( 'useskin' => $skinkey ) ) );
1080                         $linkTools[] = "<a target='_blank' href=\"$mplink\">$previewtext</a>";
1081
1082                         # Create links to user CSS/JS pages
1083                         if ( $allowUserCss ) {
1084                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.css' );
1085                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
1086                         }
1087
1088                         if ( $allowUserJs ) {
1089                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.js' );
1090                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
1091                         }
1092
1093                         $display = $sn . ' ' . $context->msg( 'parentheses' )
1094                                 ->rawParams( $context->getLanguage()->pipeList( $linkTools ) )
1095                                 ->escaped();
1096                         $ret[$display] = $skinkey;
1097                 }
1098
1099                 if ( !$foundDefault ) {
1100                         // If the default skin is not available, things are going to break horribly because the
1101                         // default value for skin selector will not be a valid value. Let's just not show it then.
1102                         return array();
1103                 }
1104
1105                 return $ret;
1106         }
1107
1108         /**
1109          * @param IContextSource $context
1110          * @return array
1111          */
1112         static function getDateOptions( IContextSource $context ) {
1113                 $lang = $context->getLanguage();
1114                 $dateopts = $lang->getDatePreferences();
1115
1116                 $ret = array();
1117
1118                 if ( $dateopts ) {
1119                         if ( !in_array( 'default', $dateopts ) ) {
1120                                 $dateopts[] = 'default'; // Make sure default is always valid
1121                                                                                 // Bug 19237
1122                         }
1123
1124                         // FIXME KLUGE: site default might not be valid for user language
1125                         global $wgDefaultUserOptions;
1126                         if ( !in_array( $wgDefaultUserOptions['date'], $dateopts ) ) {
1127                                 $wgDefaultUserOptions['date'] = 'default';
1128                         }
1129
1130                         $epoch = wfTimestampNow();
1131                         foreach ( $dateopts as $key ) {
1132                                 if ( $key == 'default' ) {
1133                                         $formatted = $context->msg( 'datedefault' )->escaped();
1134                                 } else {
1135                                         $formatted = htmlspecialchars( $lang->timeanddate( $epoch, false, $key ) );
1136                                 }
1137                                 $ret[$formatted] = $key;
1138                         }
1139                 }
1140                 return $ret;
1141         }
1142
1143         /**
1144          * @param IContextSource $context
1145          * @return array
1146          */
1147         static function getImageSizes( IContextSource $context ) {
1148                 $ret = array();
1149                 $pixels = $context->msg( 'unit-pixel' )->text();
1150
1151                 foreach ( $context->getConfig()->get( 'ImageLimits' ) as $index => $limits ) {
1152                         $display = "{$limits[0]}×{$limits[1]}" . $pixels;
1153                         $ret[$display] = $index;
1154                 }
1155
1156                 return $ret;
1157         }
1158
1159         /**
1160          * @param IContextSource $context
1161          * @return array
1162          */
1163         static function getThumbSizes( IContextSource $context ) {
1164                 $ret = array();
1165                 $pixels = $context->msg( 'unit-pixel' )->text();
1166
1167                 foreach ( $context->getConfig()->get( 'ThumbLimits' ) as $index => $size ) {
1168                         $display = $size . $pixels;
1169                         $ret[$display] = $index;
1170                 }
1171
1172                 return $ret;
1173         }
1174
1175         /**
1176          * @param string $signature
1177          * @param array $alldata
1178          * @param HTMLForm $form
1179          * @return bool|string
1180          */
1181         static function validateSignature( $signature, $alldata, $form ) {
1182                 global $wgParser;
1183                 $maxSigChars = $form->getConfig()->get( 'MaxSigChars' );
1184                 if ( mb_strlen( $signature ) > $maxSigChars ) {
1185                         return Xml::element( 'span', array( 'class' => 'error' ),
1186                                 $form->msg( 'badsiglength' )->numParams( $maxSigChars )->text() );
1187                 } elseif ( isset( $alldata['fancysig'] ) &&
1188                                 $alldata['fancysig'] &&
1189                                 $wgParser->validateSig( $signature ) === false
1190                 ) {
1191                         return Xml::element(
1192                                 'span',
1193                                 array( 'class' => 'error' ),
1194                                 $form->msg( 'badsig' )->text()
1195                         );
1196                 } else {
1197                         return true;
1198                 }
1199         }
1200
1201         /**
1202          * @param string $signature
1203          * @param array $alldata
1204          * @param HTMLForm $form
1205          * @return string
1206          */
1207         static function cleanSignature( $signature, $alldata, $form ) {
1208                 if ( isset( $alldata['fancysig'] ) && $alldata['fancysig'] ) {
1209                         global $wgParser;
1210                         $signature = $wgParser->cleanSig( $signature );
1211                 } else {
1212                         // When no fancy sig used, make sure ~{3,5} get removed.
1213                         $signature = Parser::cleanSigInSig( $signature );
1214                 }
1215
1216                 return $signature;
1217         }
1218
1219         /**
1220          * @param User $user
1221          * @param IContextSource $context
1222          * @param string $formClass
1223          * @param array $remove Array of items to remove
1224          * @return HtmlForm
1225          */
1226         static function getFormObject(
1227                 $user,
1228                 IContextSource $context,
1229                 $formClass = 'PreferencesForm',
1230                 array $remove = array()
1231         ) {
1232                 $formDescriptor = Preferences::getPreferences( $user, $context );
1233                 if ( count( $remove ) ) {
1234                         $removeKeys = array_flip( $remove );
1235                         $formDescriptor = array_diff_key( $formDescriptor, $removeKeys );
1236                 }
1237
1238                 // Remove type=api preferences. They are not intended for rendering in the form.
1239                 foreach ( $formDescriptor as $name => $info ) {
1240                         if ( isset( $info['type'] ) && $info['type'] === 'api' ) {
1241                                 unset( $formDescriptor[$name] );
1242                         }
1243                 }
1244
1245                 /**
1246                  * @var $htmlForm PreferencesForm
1247                  */
1248                 $htmlForm = new $formClass( $formDescriptor, $context, 'prefs' );
1249
1250                 $htmlForm->setModifiedUser( $user );
1251                 $htmlForm->setId( 'mw-prefs-form' );
1252                 $htmlForm->setSubmitText( $context->msg( 'saveprefs' )->text() );
1253                 # Used message keys: 'accesskey-preferences-save', 'tooltip-preferences-save'
1254                 $htmlForm->setSubmitTooltip( 'preferences-save' );
1255                 $htmlForm->setSubmitID( 'prefsubmit' );
1256                 $htmlForm->setSubmitCallback( array( 'Preferences', 'tryFormSubmit' ) );
1257
1258                 return $htmlForm;
1259         }
1260
1261         /**
1262          * @param IContextSource $context
1263          * @return array
1264          */
1265         static function getTimezoneOptions( IContextSource $context ) {
1266                 $opt = array();
1267
1268                 $localTZoffset = $context->getConfig()->get( 'LocalTZoffset' );
1269                 $timestamp = MWTimestamp::getLocalInstance();
1270                 // Check that the LocalTZoffset is the same as the local time zone offset
1271                 if ( $localTZoffset == $timestamp->format( 'Z' ) / 60 ) {
1272                         $server_tz_msg = $context->msg(
1273                                 'timezoneuseserverdefault',
1274                                 $timestamp->getTimezone()->getName()
1275                         )->text();
1276                 } else {
1277                         $tzstring = sprintf(
1278                                 '%+03d:%02d',
1279                                 floor( $localTZoffset / 60 ),
1280                                 abs( $localTZoffset ) % 60
1281                         );
1282                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $tzstring )->text();
1283                 }
1284                 $opt[$server_tz_msg] = "System|$localTZoffset";
1285                 $opt[$context->msg( 'timezoneuseoffset' )->text()] = 'other';
1286                 $opt[$context->msg( 'guesstimezone' )->text()] = 'guess';
1287
1288                 if ( function_exists( 'timezone_identifiers_list' ) ) {
1289                         # Read timezone list
1290                         $tzs = timezone_identifiers_list();
1291                         sort( $tzs );
1292
1293                         $tzRegions = array();
1294                         $tzRegions['Africa'] = $context->msg( 'timezoneregion-africa' )->text();
1295                         $tzRegions['America'] = $context->msg( 'timezoneregion-america' )->text();
1296                         $tzRegions['Antarctica'] = $context->msg( 'timezoneregion-antarctica' )->text();
1297                         $tzRegions['Arctic'] = $context->msg( 'timezoneregion-arctic' )->text();
1298                         $tzRegions['Asia'] = $context->msg( 'timezoneregion-asia' )->text();
1299                         $tzRegions['Atlantic'] = $context->msg( 'timezoneregion-atlantic' )->text();
1300                         $tzRegions['Australia'] = $context->msg( 'timezoneregion-australia' )->text();
1301                         $tzRegions['Europe'] = $context->msg( 'timezoneregion-europe' )->text();
1302                         $tzRegions['Indian'] = $context->msg( 'timezoneregion-indian' )->text();
1303                         $tzRegions['Pacific'] = $context->msg( 'timezoneregion-pacific' )->text();
1304                         asort( $tzRegions );
1305
1306                         $prefill = array_fill_keys( array_values( $tzRegions ), array() );
1307                         $opt = array_merge( $opt, $prefill );
1308
1309                         $now = date_create( 'now' );
1310
1311                         foreach ( $tzs as $tz ) {
1312                                 $z = explode( '/', $tz, 2 );
1313
1314                                 # timezone_identifiers_list() returns a number of
1315                                 # backwards-compatibility entries. This filters them out of the
1316                                 # list presented to the user.
1317                                 if ( count( $z ) != 2 || !array_key_exists( $z[0], $tzRegions ) ) {
1318                                         continue;
1319                                 }
1320
1321                                 # Localize region
1322                                 $z[0] = $tzRegions[$z[0]];
1323
1324                                 $minDiff = floor( timezone_offset_get( timezone_open( $tz ), $now ) / 60 );
1325
1326                                 $display = str_replace( '_', ' ', $z[0] . '/' . $z[1] );
1327                                 $value = "ZoneInfo|$minDiff|$tz";
1328
1329                                 $opt[$z[0]][$display] = $value;
1330                         }
1331                 }
1332                 return $opt;
1333         }
1334
1335         /**
1336          * @param string $value
1337          * @param array $alldata
1338          * @return int
1339          */
1340         static function filterIntval( $value, $alldata ) {
1341                 return intval( $value );
1342         }
1343
1344         /**
1345          * @param string $tz
1346          * @param array $alldata
1347          * @return string
1348          */
1349         static function filterTimezoneInput( $tz, $alldata ) {
1350                 $data = explode( '|', $tz, 3 );
1351                 switch ( $data[0] ) {
1352                         case 'ZoneInfo':
1353                         case 'System':
1354                                 return $tz;
1355                         default:
1356                                 $data = explode( ':', $tz, 2 );
1357                                 if ( count( $data ) == 2 ) {
1358                                         $data[0] = intval( $data[0] );
1359                                         $data[1] = intval( $data[1] );
1360                                         $minDiff = abs( $data[0] ) * 60 + $data[1];
1361                                         if ( $data[0] < 0 ) {
1362                                                 $minDiff = - $minDiff;
1363                                         }
1364                                 } else {
1365                                         $minDiff = intval( $data[0] ) * 60;
1366                                 }
1367
1368                                 # Max is +14:00 and min is -12:00, see:
1369                                 # http://en.wikipedia.org/wiki/Timezone
1370                                 $minDiff = min( $minDiff, 840 );  # 14:00
1371                                 $minDiff = max( $minDiff, - 720 ); # -12:00
1372                                 return 'Offset|' . $minDiff;
1373                 }
1374         }
1375
1376         /**
1377          * Handle the form submission if everything validated properly
1378          *
1379          * @param array $formData
1380          * @param PreferencesForm $form
1381          * @return bool|Status|string
1382          */
1383         static function tryFormSubmit( $formData, $form ) {
1384                 global $wgAuth;
1385
1386                 $user = $form->getModifiedUser();
1387                 $hiddenPrefs = $form->getConfig()->get( 'HiddenPrefs' );
1388                 $result = true;
1389
1390                 if ( !$user->isAllowedAny( 'editmyprivateinfo', 'editmyoptions' ) ) {
1391                         return Status::newFatal( 'mypreferencesprotected' );
1392                 }
1393
1394                 // Filter input
1395                 foreach ( array_keys( $formData ) as $name ) {
1396                         if ( isset( self::$saveFilters[$name] ) ) {
1397                                 $formData[$name] =
1398                                         call_user_func( self::$saveFilters[$name], $formData[$name], $formData );
1399                         }
1400                 }
1401
1402                 // Fortunately, the realname field is MUCH simpler
1403                 // (not really "private", but still shouldn't be edited without permission)
1404                 if ( !in_array( 'realname', $hiddenPrefs )
1405                         && $user->isAllowed( 'editmyprivateinfo' )
1406                         && array_key_exists( 'realname', $formData )
1407                 ) {
1408                         $realName = $formData['realname'];
1409                         $user->setRealName( $realName );
1410                 }
1411
1412                 if ( $user->isAllowed( 'editmyoptions' ) ) {
1413                         foreach ( self::$saveBlacklist as $b ) {
1414                                 unset( $formData[$b] );
1415                         }
1416
1417                         # If users have saved a value for a preference which has subsequently been disabled
1418                         # via $wgHiddenPrefs, we don't want to destroy that setting in case the preference
1419                         # is subsequently re-enabled
1420                         foreach ( $hiddenPrefs 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                         Hooks::run( 'PreferencesFormPreSave', array( $formData, $form, $user, &$result ) );
1434                         $user->saveSettings();
1435                 }
1436
1437                 $wgAuth->updateExternalDB( $user );
1438
1439                 return $result;
1440         }
1441
1442         /**
1443          * @param array $formData
1444          * @param PreferencesForm $form
1445          * @return Status
1446          */
1447         public static function tryUISubmit( $formData, $form ) {
1448                 $res = self::tryFormSubmit( $formData, $form );
1449
1450                 if ( $res ) {
1451                         $urlOptions = array( 'success' => 1 );
1452
1453                         if ( $res === 'eauth' ) {
1454                                 $urlOptions['eauth'] = 1;
1455                         }
1456
1457                         $urlOptions += $form->getExtraSuccessRedirectParameters();
1458
1459                         $url = $form->getTitle()->getFullURL( $urlOptions );
1460
1461                         $form->getContext()->getOutput()->redirect( $url );
1462                 }
1463
1464                 return Status::newGood();
1465         }
1466 }
1467
1468 /** Some tweaks to allow js prefs to work */
1469 class PreferencesForm extends HTMLForm {
1470         // Override default value from HTMLForm
1471         protected $mSubSectionBeforeFields = false;
1472
1473         private $modifiedUser;
1474
1475         /**
1476          * @param User $user
1477          */
1478         public function setModifiedUser( $user ) {
1479                 $this->modifiedUser = $user;
1480         }
1481
1482         /**
1483          * @return User
1484          */
1485         public function getModifiedUser() {
1486                 if ( $this->modifiedUser === null ) {
1487                         return $this->getUser();
1488                 } else {
1489                         return $this->modifiedUser;
1490                 }
1491         }
1492
1493         /**
1494          * Get extra parameters for the query string when redirecting after
1495          * successful save.
1496          *
1497          * @return array()
1498          */
1499         public function getExtraSuccessRedirectParameters() {
1500                 return array();
1501         }
1502
1503         /**
1504          * @param string $html
1505          * @return string
1506          */
1507         function wrapForm( $html ) {
1508                 $html = Xml::tags( 'div', array( 'id' => 'preferences' ), $html );
1509
1510                 return parent::wrapForm( $html );
1511         }
1512
1513         /**
1514          * @return string
1515          */
1516         function getButtons() {
1517
1518                 $attrs = array( 'id' => 'mw-prefs-restoreprefs' );
1519
1520                 if ( !$this->getModifiedUser()->isAllowedAny( 'editmyprivateinfo', 'editmyoptions' ) ) {
1521                         return '';
1522                 }
1523
1524                 $html = parent::getButtons();
1525
1526                 if ( $this->getModifiedUser()->isAllowed( 'editmyoptions' ) ) {
1527                         $t = SpecialPage::getTitleFor( 'Preferences', 'reset' );
1528
1529                         $html .= "\n" . Linker::link( $t, $this->msg( 'restoreprefs' )->escaped(),
1530                                 Html::buttonAttributes( $attrs, array( 'mw-ui-quiet' ) ) );
1531
1532                         $html = Xml::tags( 'div', array( 'class' => 'mw-prefs-buttons' ), $html );
1533                 }
1534
1535                 return $html;
1536         }
1537
1538         /**
1539          * Separate multi-option preferences into multiple preferences, since we
1540          * have to store them separately
1541          * @param array $data
1542          * @return array
1543          */
1544         function filterDataForSubmit( $data ) {
1545                 foreach ( $this->mFlatFields as $fieldname => $field ) {
1546                         if ( $field instanceof HTMLNestedFilterable ) {
1547                                 $info = $field->mParams;
1548                                 $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $fieldname;
1549                                 foreach ( $field->filterDataForSubmit( $data[$fieldname] ) as $key => $value ) {
1550                                         $data["$prefix$key"] = $value;
1551                                 }
1552                                 unset( $data[$fieldname] );
1553                         }
1554                 }
1555
1556                 return $data;
1557         }
1558
1559         /**
1560          * Get the whole body of the form.
1561          * @return string
1562          */
1563         function getBody() {
1564                 return $this->displaySection( $this->mFieldTree, '', 'mw-prefsection-' );
1565         }
1566
1567         /**
1568          * Get the "<legend>" for a given section key. Normally this is the
1569          * prefs-$key message but we'll allow extensions to override it.
1570          * @param string $key
1571          * @return string
1572          */
1573         function getLegend( $key ) {
1574                 $legend = parent::getLegend( $key );
1575                 Hooks::run( 'PreferencesGetLegend', array( $this, $key, &$legend ) );
1576                 return $legend;
1577         }
1578 }