includes/Preferences.php

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