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                 wfRunHooks( '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 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                 global $wgHiddenPrefs;
 117                 foreach ( $wgHiddenPrefs as $pref ) {
 118                         if ( isset( $defaultPreferences[$pref] ) ) {
 119                                 unset( $defaultPreferences[$pref] );
 120                         }
 121                 }
 122
 123                 ## Make sure that form fields have their parent set. See bug 41337.
 124                 $dummyForm = new HTMLForm( array(), $context );
 125
 126                 $disable = !$user->isAllowed( 'editmyoptions' );
 127
 128                 ## Prod in defaults from the user
 129                 foreach ( $defaultPreferences as $name => &$info ) {
 130                         $prefFromUser = self::getOptionFromUser( $name, $info, $user );
 131                         if ( $disable && !in_array( $name, self::$saveBlacklist ) ) {
 132                                 $info['disabled'] = 'disabled';
 133                         }
 134                         $field = HTMLForm::loadInputFromParameters( $name, $info ); // For validation
 135                         $field->mParent = $dummyForm;
 136                         $defaultOptions = User::getDefaultOptions();
 137                         $globalDefault = isset( $defaultOptions[$name] )
 138                                 ? $defaultOptions[$name]
 139                                 : null;
 140
 141                         // If it validates, set it as the default
 142                         if ( isset( $info['default'] ) ) {
 143                                 // Already set, no problem
 144                                 continue;
 145                         } elseif ( !is_null( $prefFromUser ) && // Make sure we're not just pulling nothing
 146                                         $field->validate( $prefFromUser, $user->getOptions() ) === true ) {
 147                                 $info['default'] = $prefFromUser;
 148                         } elseif ( $field->validate( $globalDefault, $user->getOptions() ) === true ) {
 149                                 $info['default'] = $globalDefault;
 150                         } else {
 151                                 throw new MWException( "Global default '$globalDefault' is invalid for field $name" );
 152                         }
 153                 }
 154
 155                 return $defaultPreferences;
 156         }
 157
 158         /**
 159          * Pull option from a user account. Handles stuff like array-type preferences.
 160          *
 161          * @param string $name
 162          * @param array $info
 163          * @param User $user
 164          * @return array|string
 165          */
 166         static function getOptionFromUser( $name, $info, $user ) {
 167                 $val = $user->getOption( $name );
 168
 169                 // Handling for multiselect preferences
 170                 if ( ( isset( $info['type'] ) && $info['type'] == 'multiselect' ) ||
 171                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLMultiSelectField' ) ) {
 172                         $options = HTMLFormField::flattenOptions( $info['options'] );
 173                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 174                         $val = array();
 175
 176                         foreach ( $options as $value ) {
 177                                 if ( $user->getOption( "$prefix$value" ) ) {
 178                                         $val[] = $value;
 179                                 }
 180                         }
 181                 }
 182
 183                 // Handling for checkmatrix preferences
 184                 if ( ( isset( $info['type'] ) && $info['type'] == 'checkmatrix' ) ||
 185                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLCheckMatrix' ) ) {
 186                         $columns = HTMLFormField::flattenOptions( $info['columns'] );
 187                         $rows = HTMLFormField::flattenOptions( $info['rows'] );
 188                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 189                         $val = array();
 190
 191                         foreach ( $columns as $column ) {
 192                                 foreach ( $rows as $row ) {
 193                                         if ( $user->getOption( "$prefix$column-$row" ) ) {
 194                                                 $val[] = "$column-$row";
 195                                         }
 196                                 }
 197                         }
 198                 }
 199
 200                 return $val;
 201         }
 202
 203         /**
 204          * @param User $user
 205          * @param IContextSource $context
 206          * @param array $defaultPreferences
 207          * @return void
 208          */
 209         static function profilePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 210                 global $wgAuth, $wgContLang, $wgParser, $wgLanguageCode,
 211                         $wgDisableLangConversion, $wgMaxSigChars,
 212                         $wgEnableEmail, $wgEmailConfirmToEdit, $wgEnableUserEmail, $wgEmailAuthentication,
 213                         $wgEnotifWatchlist, $wgEnotifUserTalk, $wgEnotifRevealEditorAddress,
 214                         $wgSecureLogin;
 215
 216                 // retrieving user name for GENDER and misc.
 217                 $userName = $user->getName();
 218
 219                 ## User info #####################################
 220                 // Information panel
 221                 $defaultPreferences['username'] = array(
 222                         'type' => 'info',
 223                         'label-message' => array( 'username', $userName ),
 224                         'default' => $userName,
 225                         'section' => 'personal/info',
 226                 );
 227
 228                 # Get groups to which the user belongs
 229                 $userEffectiveGroups = $user->getEffectiveGroups();
 230                 $userGroups = $userMembers = array();
 231                 foreach ( $userEffectiveGroups as $ueg ) {
 232                         if ( $ueg == '*' ) {
 233                                 // Skip the default * group, seems useless here
 234                                 continue;
 235                         }
 236                         $groupName = User::getGroupName( $ueg );
 237                         $userGroups[] = User::makeGroupLinkHTML( $ueg, $groupName );
 238
 239                         $memberName = User::getGroupMember( $ueg, $userName );
 240                         $userMembers[] = User::makeGroupLinkHTML( $ueg, $memberName );
 241                 }
 242                 asort( $userGroups );
 243                 asort( $userMembers );
 244
 245                 $lang = $context->getLanguage();
 246
 247                 $defaultPreferences['usergroups'] = array(
 248                         'type' => 'info',
 249                         'label' => $context->msg( 'prefs-memberingroups' )->numParams(
 250                                 count( $userGroups ) )->params( $userName )->parse(),
 251                         'default' => $context->msg( 'prefs-memberingroups-type',
 252                                 $lang->commaList( $userGroups ),
 253                                 $lang->commaList( $userMembers )
 254                         )->plain(),
 255                         'raw' => true,
 256                         'section' => 'personal/info',
 257                 );
 258
 259                 $editCount = Linker::link( SpecialPage::getTitleFor( "Contributions", $userName ),
 260                         $lang->formatNum( $user->getEditCount() ) );
 261
 262                 $defaultPreferences['editcount'] = array(
 263                         'type' => 'info',
 264                         'raw' => true,
 265                         'label-message' => 'prefs-edits',
 266                         'default' => $editCount,
 267                         'section' => 'personal/info',
 268                 );
 269
 270                 if ( $user->getRegistration() ) {
 271                         $displayUser = $context->getUser();
 272                         $userRegistration = $user->getRegistration();
 273                         $defaultPreferences['registrationdate'] = array(
 274                                 'type' => 'info',
 275                                 'label-message' => 'prefs-registration',
 276                                 'default' => $context->msg(
 277                                         'prefs-registration-date-time',
 278                                         $lang->userTimeAndDate( $userRegistration, $displayUser ),
 279                                         $lang->userDate( $userRegistration, $displayUser ),
 280                                         $lang->userTime( $userRegistration, $displayUser )
 281                                 )->parse(),
 282                                 'section' => 'personal/info',
 283                         );
 284                 }
 285
 286                 $canViewPrivateInfo = $user->isAllowed( 'viewmyprivateinfo' );
 287                 $canEditPrivateInfo = $user->isAllowed( 'editmyprivateinfo' );
 288
 289                 // Actually changeable stuff
 290                 $defaultPreferences['realname'] = array(
 291                         // (not really "private", but still shouldn't be edited without permission)
 292                         'type' => $canEditPrivateInfo && $wgAuth->allowPropChange( 'realname' ) ? 'text' : 'info',
 293                         'default' => $user->getRealName(),
 294                         'section' => 'personal/info',
 295                         'label-message' => 'yourrealname',
 296                         'help-message' => 'prefs-help-realname',
 297                 );
 298
 299                 if ( $canEditPrivateInfo && $wgAuth->allowPasswordChange() ) {
 300                         $link = Linker::link( SpecialPage::getTitleFor( 'ChangePassword' ),
 301                                 $context->msg( 'prefs-resetpass' )->escaped(), array(),
 302                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ) );
 303
 304                         $defaultPreferences['password'] = array(
 305                                 'type' => 'info',
 306                                 'raw' => true,
 307                                 'default' => $link,
 308                                 'label-message' => 'yourpassword',
 309                                 'section' => 'personal/info',
 310                         );
 311                 }
 312                 // Only show prefershttps if secure login is turned on
 313                 if ( $wgSecureLogin && wfCanIPUseHTTPS( $context->getRequest()->getIP() ) ) {
 314                         $defaultPreferences['prefershttps'] = array(
 315                                 'type' => 'toggle',
 316                                 'label-message' => 'tog-prefershttps',
 317                                 'help-message' => 'prefs-help-prefershttps',
 318                                 'section' => 'personal/info'
 319                         );
 320                 }
 321
 322                 // Language
 323                 $languages = Language::fetchLanguageNames( null, 'mw' );
 324                 if ( !array_key_exists( $wgLanguageCode, $languages ) ) {
 325                         $languages[$wgLanguageCode] = $wgLanguageCode;
 326                 }
 327                 ksort( $languages );
 328
 329                 $options = array();
 330                 foreach ( $languages as $code => $name ) {
 331                         $display = wfBCP47( $code ) . ' - ' . $name;
 332                         $options[$display] = $code;
 333                 }
 334                 $defaultPreferences['language'] = array(
 335                         'type' => 'select',
 336                         'section' => 'personal/i18n',
 337                         'options' => $options,
 338                         'label-message' => 'yourlanguage',
 339                 );
 340
 341                 $defaultPreferences['gender'] = array(
 342                         'type' => 'radio',
 343                         'section' => 'personal/i18n',
 344                         'options' => array(
 345                                 $context->msg( 'parentheses',
 346                                         $context->msg( 'gender-unknown' )->text()
 347                                 )->text() => 'unknown',
 348                                 $context->msg( 'gender-female' )->text() => 'female',
 349                                 $context->msg( 'gender-male' )->text() => 'male',
 350                         ),
 351                         'label-message' => 'yourgender',
 352                         'help-message' => 'prefs-help-gender',
 353                 );
 354
 355                 // see if there are multiple language variants to choose from
 356                 if ( !$wgDisableLangConversion ) {
 357                         foreach ( LanguageConverter::$languagesWithVariants as $langCode ) {
 358                                 if ( $langCode == $wgContLang->getCode() ) {
 359                                         $variants = $wgContLang->getVariants();
 360
 361                                         if ( count( $variants ) <= 1 ) {
 362                                                 continue;
 363                                         }
 364
 365                                         $variantArray = array();
 366                                         foreach ( $variants as $v ) {
 367                                                 $v = str_replace( '_', '-', strtolower( $v ) );
 368                                                 $variantArray[$v] = $lang->getVariantname( $v, false );
 369                                         }
 370
 371                                         $options = array();
 372                                         foreach ( $variantArray as $code => $name ) {
 373                                                 $display = wfBCP47( $code ) . ' - ' . $name;
 374                                                 $options[$display] = $code;
 375                                         }
 376
 377                                         $defaultPreferences['variant'] = array(
 378                                                 'label-message' => 'yourvariant',
 379                                                 'type' => 'select',
 380                                                 'options' => $options,
 381                                                 'section' => 'personal/i18n',
 382                                                 'help-message' => 'prefs-help-variant',
 383                                         );
 384                                 } else {
 385                                         $defaultPreferences["variant-$langCode"] = array(
 386                                                 'type' => 'api',
 387                                         );
 388                                 }
 389                         }
 390                 }
 391
 392                 // Stuff from Language::getExtraUserToggles()
 393                 // FIXME is this dead code? $extraUserToggles doesn't seem to be defined for any language
 394                 $toggles = $wgContLang->getExtraUserToggles();
 395
 396                 foreach ( $toggles as $toggle ) {
 397                         $defaultPreferences[$toggle] = array(
 398                                 'type' => 'toggle',
 399                                 'section' => 'personal/i18n',
 400                                 'label-message' => "tog-$toggle",
 401                         );
 402                 }
 403
 404                 // show a preview of the old signature first
 405                 $oldsigWikiText = $wgParser->preSaveTransform(
 406                         '~~~',
 407                         $context->getTitle(),
 408                         $user,
 409                         ParserOptions::newFromContext( $context )
 410                 );
 411                 $oldsigHTML = $context->getOutput()->parseInline( $oldsigWikiText, true, true );
 412                 $defaultPreferences['oldsig'] = array(
 413                         'type' => 'info',
 414                         'raw' => true,
 415                         'label-message' => 'tog-oldsig',
 416                         'default' => $oldsigHTML,
 417                         'section' => 'personal/signature',
 418                 );
 419                 $defaultPreferences['nickname'] = array(
 420                         'type' => $wgAuth->allowPropChange( 'nickname' ) ? 'text' : 'info',
 421                         'maxlength' => $wgMaxSigChars,
 422                         'label-message' => 'yournick',
 423                         'validation-callback' => array( 'Preferences', 'validateSignature' ),
 424                         'section' => 'personal/signature',
 425                         'filter-callback' => array( 'Preferences', 'cleanSignature' ),
 426                 );
 427                 $defaultPreferences['fancysig'] = array(
 428                         'type' => 'toggle',
 429                         'label-message' => 'tog-fancysig',
 430                         // show general help about signature at the bottom of the section
 431                         'help-message' => 'prefs-help-signature',
 432                         'section' => 'personal/signature'
 433                 );
 434
 435                 ## Email stuff
 436
 437                 if ( $wgEnableEmail ) {
 438                         if ( $canViewPrivateInfo ) {
 439                                 $helpMessages[] = $wgEmailConfirmToEdit
 440                                                 ? 'prefs-help-email-required'
 441                                                 : 'prefs-help-email';
 442
 443                                 if ( $wgEnableUserEmail ) {
 444                                         // additional messages when users can send email to each other
 445                                         $helpMessages[] = 'prefs-help-email-others';
 446                                 }
 447
 448                                 $emailAddress = $user->getEmail() ? htmlspecialchars( $user->getEmail() ) : '';
 449                                 if ( $canEditPrivateInfo && $wgAuth->allowPropChange( 'emailaddress' ) ) {
 450                                         $link = Linker::link(
 451                                                 SpecialPage::getTitleFor( 'ChangeEmail' ),
 452                                                 $context->msg( $user->getEmail() ? 'prefs-changeemail' : 'prefs-setemail' )->escaped(),
 453                                                 array(),
 454                                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ) );
 455
 456                                         $emailAddress .= $emailAddress == '' ? $link : (
 457                                                 $context->msg( 'word-separator' )->plain()
 458                                                 . $context->msg( 'parentheses' )->rawParams( $link )->plain()
 459                                         );
 460                                 }
 461
 462                                 $defaultPreferences['emailaddress'] = array(
 463                                         'type' => 'info',
 464                                         'raw' => true,
 465                                         'default' => $emailAddress,
 466                                         'label-message' => 'youremail',
 467                                         'section' => 'personal/email',
 468                                         'help-messages' => $helpMessages,
 469                                         # 'cssclass' chosen below
 470                                 );
 471                         }
 472
 473                         $disableEmailPrefs = false;
 474
 475                         if ( $wgEmailAuthentication ) {
 476                                 $emailauthenticationclass = 'mw-email-not-authenticated';
 477                                 if ( $user->getEmail() ) {
 478                                         if ( $user->getEmailAuthenticationTimestamp() ) {
 479                                                 // date and time are separate parameters to facilitate localisation.
 480                                                 // $time is kept for backward compat reasons.
 481                                                 // 'emailauthenticated' is also used in SpecialConfirmemail.php
 482                                                 $displayUser = $context->getUser();
 483                                                 $emailTimestamp = $user->getEmailAuthenticationTimestamp();
 484                                                 $time = $lang->userTimeAndDate( $emailTimestamp, $displayUser );
 485                                                 $d = $lang->userDate( $emailTimestamp, $displayUser );
 486                                                 $t = $lang->userTime( $emailTimestamp, $displayUser );
 487                                                 $emailauthenticated = $context->msg( 'emailauthenticated',
 488                                                         $time, $d, $t )->parse() . '<br />';
 489                                                 $disableEmailPrefs = false;
 490                                                 $emailauthenticationclass = 'mw-email-authenticated';
 491                                         } else {
 492                                                 $disableEmailPrefs = true;
 493                                                 $emailauthenticated = $context->msg( 'emailnotauthenticated' )->parse() . '<br />' .
 494                                                         Linker::linkKnown(
 495                                                                 SpecialPage::getTitleFor( 'Confirmemail' ),
 496                                                                 $context->msg( 'emailconfirmlink' )->escaped()
 497                                                         ) . '<br />';
 498                                                 $emailauthenticationclass = "mw-email-not-authenticated";
 499                                         }
 500                                 } else {
 501                                         $disableEmailPrefs = true;
 502                                         $emailauthenticated = $context->msg( 'noemailprefs' )->escaped();
 503                                         $emailauthenticationclass = 'mw-email-none';
 504                                 }
 505
 506                                 if ( $canViewPrivateInfo ) {
 507                                         $defaultPreferences['emailauthentication'] = array(
 508                                                 'type' => 'info',
 509                                                 'raw' => true,
 510                                                 'section' => 'personal/email',
 511                                                 'label-message' => 'prefs-emailconfirm-label',
 512                                                 'default' => $emailauthenticated,
 513                                                 # Apply the same CSS class used on the input to the message:
 514                                                 'cssclass' => $emailauthenticationclass,
 515                                         );
 516                                         $defaultPreferences['emailaddress']['cssclass'] = $emailauthenticationclass;
 517                                 }
 518                         }
 519
 520                         if ( $wgEnableUserEmail && $user->isAllowed( 'sendemail' ) ) {
 521                                 $defaultPreferences['disablemail'] = array(
 522                                         'type' => 'toggle',
 523                                         'invert' => true,
 524                                         'section' => 'personal/email',
 525                                         'label-message' => 'allowemail',
 526                                         'disabled' => $disableEmailPrefs,
 527                                 );
 528                                 $defaultPreferences['ccmeonemails'] = array(
 529                                         'type' => 'toggle',
 530                                         'section' => 'personal/email',
 531                                         'label-message' => 'tog-ccmeonemails',
 532                                         'disabled' => $disableEmailPrefs,
 533                                 );
 534                         }
 535
 536                         if ( $wgEnotifWatchlist ) {
 537                                 $defaultPreferences['enotifwatchlistpages'] = array(
 538                                         'type' => 'toggle',
 539                                         'section' => 'personal/email',
 540                                         'label-message' => 'tog-enotifwatchlistpages',
 541                                         'disabled' => $disableEmailPrefs,
 542                                 );
 543                         }
 544                         if ( $wgEnotifUserTalk ) {
 545                                 $defaultPreferences['enotifusertalkpages'] = array(
 546                                         'type' => 'toggle',
 547                                         'section' => 'personal/email',
 548                                         'label-message' => 'tog-enotifusertalkpages',
 549                                         'disabled' => $disableEmailPrefs,
 550                                 );
 551                         }
 552                         if ( $wgEnotifUserTalk || $wgEnotifWatchlist ) {
 553                                 $defaultPreferences['enotifminoredits'] = array(
 554                                         'type' => 'toggle',
 555                                         'section' => 'personal/email',
 556                                         'label-message' => 'tog-enotifminoredits',
 557                                         'disabled' => $disableEmailPrefs,
 558                                 );
 559
 560                                 if ( $wgEnotifRevealEditorAddress ) {
 561                                         $defaultPreferences['enotifrevealaddr'] = array(
 562                                                 'type' => 'toggle',
 563                                                 'section' => 'personal/email',
 564                                                 'label-message' => 'tog-enotifrevealaddr',
 565                                                 'disabled' => $disableEmailPrefs,
 566                                         );
 567                                 }
 568                         }
 569                 }
 570         }
 571
 572         /**
 573          * @param User $user
 574          * @param IContextSource $context
 575          * @param array $defaultPreferences
 576          * @return void
 577          */
 578         static function skinPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 579                 ## Skin #####################################
 580                 global $wgAllowUserCss, $wgAllowUserJs;
 581
 582                 $defaultPreferences['skin'] = array(
 583                         'type' => 'radio',
 584                         'options' => self::generateSkinOptions( $user, $context ),
 585                         'label' => '&#160;',
 586                         'section' => 'rendering/skin',
 587                 );
 588
 589                 # Create links to user CSS/JS pages for all skins
 590                 # This code is basically copied from generateSkinOptions().  It'd
 591                 # be nice to somehow merge this back in there to avoid redundancy.
 592                 if ( $wgAllowUserCss || $wgAllowUserJs ) {
 593                         $linkTools = array();
 594                         $userName = $user->getName();
 595
 596                         if ( $wgAllowUserCss ) {
 597                                 $cssPage = Title::makeTitleSafe( NS_USER, $userName . '/common.css' );
 598                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
 599                         }
 600
 601                         if ( $wgAllowUserJs ) {
 602                                 $jsPage = Title::makeTitleSafe( NS_USER, $userName . '/common.js' );
 603                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
 604                         }
 605
 606                         $defaultPreferences['commoncssjs'] = array(
 607                                 'type' => 'info',
 608                                 'raw' => true,
 609                                 'default' => $context->getLanguage()->pipeList( $linkTools ),
 610                                 'label-message' => 'prefs-common-css-js',
 611                                 'section' => 'rendering/skin',
 612                         );
 613                 }
 614         }
 615
 616         /**
 617          * @param User $user
 618          * @param IContextSource $context
 619          * @param array $defaultPreferences
 620          */
 621         static function filesPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 622                 ## Files #####################################
 623                 $defaultPreferences['imagesize'] = array(
 624                         'type' => 'select',
 625                         'options' => self::getImageSizes( $context ),
 626                         'label-message' => 'imagemaxsize',
 627                         'section' => 'rendering/files',
 628                 );
 629                 $defaultPreferences['thumbsize'] = array(
 630                         'type' => 'select',
 631                         'options' => self::getThumbSizes( $context ),
 632                         'label-message' => 'thumbsize',
 633                         'section' => 'rendering/files',
 634                 );
 635         }
 636
 637         /**
 638          * @param User $user
 639          * @param IContextSource $context
 640          * @param array $defaultPreferences
 641          * @return void
 642          */
 643         static function datetimePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 644                 ## Date and time #####################################
 645                 $dateOptions = self::getDateOptions( $context );
 646                 if ( $dateOptions ) {
 647                         $defaultPreferences['date'] = array(
 648                                 'type' => 'radio',
 649                                 'options' => $dateOptions,
 650                                 'label' => '&#160;',
 651                                 'section' => 'rendering/dateformat',
 652                         );
 653                 }
 654
 655                 // Info
 656                 $now = wfTimestampNow();
 657                 $lang = $context->getLanguage();
 658                 $nowlocal = Xml::element( 'span', array( 'id' => 'wpLocalTime' ),
 659                         $lang->time( $now, true ) );
 660                 $nowserver = $lang->time( $now, false ) .
 661                         Html::hidden( 'wpServerTime', (int)substr( $now, 8, 2 ) * 60 + (int)substr( $now, 10, 2 ) );
 662
 663                 $defaultPreferences['nowserver'] = array(
 664                         'type' => 'info',
 665                         'raw' => 1,
 666                         'label-message' => 'servertime',
 667                         'default' => $nowserver,
 668                         'section' => 'rendering/timeoffset',
 669                 );
 670
 671                 $defaultPreferences['nowlocal'] = array(
 672                         'type' => 'info',
 673                         'raw' => 1,
 674                         'label-message' => 'localtime',
 675                         'default' => $nowlocal,
 676                         'section' => 'rendering/timeoffset',
 677                 );
 678
 679                 // Grab existing pref.
 680                 $tzOffset = $user->getOption( 'timecorrection' );
 681                 $tz = explode( '|', $tzOffset, 3 );
 682
 683                 $tzOptions = self::getTimezoneOptions( $context );
 684
 685                 $tzSetting = $tzOffset;
 686                 if ( count( $tz ) > 1 && $tz[0] == 'Offset' ) {
 687                         $minDiff = $tz[1];
 688                         $tzSetting = sprintf( '%+03d:%02d', floor( $minDiff / 60 ), abs( $minDiff ) % 60 );
 689                 } elseif ( count( $tz ) > 1 && $tz[0] == 'ZoneInfo' &&
 690                         !in_array( $tzOffset, HTMLFormField::flattenOptions( $tzOptions ) )
 691                 ) {
 692                         # Timezone offset can vary with DST
 693                         $userTZ = timezone_open( $tz[2] );
 694                         if ( $userTZ !== false ) {
 695                                 $minDiff = floor( timezone_offset_get( $userTZ, date_create( 'now' ) ) / 60 );
 696                                 $tzSetting = "ZoneInfo|$minDiff|{$tz[2]}";
 697                         }
 698                 }
 699
 700                 $defaultPreferences['timecorrection'] = array(
 701                         'class' => 'HTMLSelectOrOtherField',
 702                         'label-message' => 'timezonelegend',
 703                         'options' => $tzOptions,
 704                         'default' => $tzSetting,
 705                         'size' => 20,
 706                         'section' => 'rendering/timeoffset',
 707                 );
 708         }
 709
 710         /**
 711          * @param User $user
 712          * @param IContextSource $context
 713          * @param array $defaultPreferences
 714          */
 715         static function renderingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 716                 ## Diffs ####################################
 717                 $defaultPreferences['diffonly'] = array(
 718                         'type' => 'toggle',
 719                         'section' => 'rendering/diffs',
 720                         'label-message' => 'tog-diffonly',
 721                 );
 722                 $defaultPreferences['norollbackdiff'] = array(
 723                         'type' => 'toggle',
 724                         'section' => 'rendering/diffs',
 725                         'label-message' => 'tog-norollbackdiff',
 726                 );
 727
 728                 ## Page Rendering ##############################
 729                 global $wgAllowUserCssPrefs;
 730                 if ( $wgAllowUserCssPrefs ) {
 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                 global $wgAllowUserCssPrefs;
 776
 777                 ## Editing #####################################
 778                 $defaultPreferences['editsectiononrightclick'] = array(
 779                         'type' => 'toggle',
 780                         'section' => 'editing/advancedediting',
 781                         'label-message' => 'tog-editsectiononrightclick',
 782                 );
 783                 $defaultPreferences['editondblclick'] = array(
 784                         'type' => 'toggle',
 785                         'section' => 'editing/advancedediting',
 786                         'label-message' => 'tog-editondblclick',
 787                 );
 788
 789                 if ( $wgAllowUserCssPrefs ) {
 790                         $defaultPreferences['editfont'] = array(
 791                                 'type' => 'select',
 792                                 'section' => 'editing/editor',
 793                                 'label-message' => 'editfont-style',
 794                                 'options' => array(
 795                                         $context->msg( 'editfont-default' )->text() => 'default',
 796                                         $context->msg( 'editfont-monospace' )->text() => 'monospace',
 797                                         $context->msg( 'editfont-sansserif' )->text() => 'sans-serif',
 798                                         $context->msg( 'editfont-serif' )->text() => 'serif',
 799                                 )
 800                         );
 801                 }
 802                 $defaultPreferences['cols'] = array(
 803                         'type' => 'int',
 804                         'label-message' => 'columns',
 805                         'section' => 'editing/editor',
 806                         'min' => 4,
 807                         'max' => 1000,
 808                 );
 809                 $defaultPreferences['rows'] = array(
 810                         'type' => 'int',
 811                         'label-message' => 'rows',
 812                         'section' => 'editing/editor',
 813                         'min' => 4,
 814                         'max' => 1000,
 815                 );
 816                 if ( $user->isAllowed( 'minoredit' ) ) {
 817                         $defaultPreferences['minordefault'] = array(
 818                                 'type' => 'toggle',
 819                                 'section' => 'editing/editor',
 820                                 'label-message' => 'tog-minordefault',
 821                         );
 822                 }
 823                 $defaultPreferences['forceeditsummary'] = array(
 824                         'type' => 'toggle',
 825                         'section' => 'editing/editor',
 826                         'label-message' => 'tog-forceeditsummary',
 827                 );
 828                 $defaultPreferences['useeditwarning'] = array(
 829                         'type' => 'toggle',
 830                         'section' => 'editing/editor',
 831                         'label-message' => 'tog-useeditwarning',
 832                 );
 833                 $defaultPreferences['showtoolbar'] = array(
 834                         'type' => 'toggle',
 835                         'section' => 'editing/editor',
 836                         'label-message' => 'tog-showtoolbar',
 837                 );
 838
 839                 $defaultPreferences['previewonfirst'] = array(
 840                         'type' => 'toggle',
 841                         'section' => 'editing/preview',
 842                         'label-message' => 'tog-previewonfirst',
 843                 );
 844                 $defaultPreferences['previewontop'] = array(
 845                         'type' => 'toggle',
 846                         'section' => 'editing/preview',
 847                         'label-message' => 'tog-previewontop',
 848                 );
 849                 $defaultPreferences['uselivepreview'] = array(
 850                         'type' => 'toggle',
 851                         'section' => 'editing/preview',
 852                         'label-message' => 'tog-uselivepreview',
 853                 );
 854
 855         }
 856
 857         /**
 858          * @param User $user
 859          * @param IContextSource $context
 860          * @param array $defaultPreferences
 861          */
 862         static function rcPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 863                 global $wgRCMaxAge, $wgRCShowWatchingUsers;
 864
 865                 ## RecentChanges #####################################
 866                 $defaultPreferences['rcdays'] = array(
 867                         'type' => 'float',
 868                         'label-message' => 'recentchangesdays',
 869                         'section' => 'rc/displayrc',
 870                         'min' => 1,
 871                         'max' => ceil( $wgRCMaxAge / ( 3600 * 24 ) ),
 872                         'help' => $context->msg( 'recentchangesdays-max' )->numParams(
 873                                 ceil( $wgRCMaxAge / ( 3600 * 24 ) ) )->text()
 874                 );
 875                 $defaultPreferences['rclimit'] = array(
 876                         'type' => 'int',
 877                         'label-message' => 'recentchangescount',
 878                         'help-message' => 'prefs-help-recentchangescount',
 879                         'section' => 'rc/displayrc',
 880                 );
 881                 $defaultPreferences['usenewrc'] = array(
 882                         'type' => 'toggle',
 883                         'label-message' => 'tog-usenewrc',
 884                         'section' => 'rc/advancedrc',
 885                 );
 886                 $defaultPreferences['hideminor'] = array(
 887                         'type' => 'toggle',
 888                         'label-message' => 'tog-hideminor',
 889                         'section' => 'rc/advancedrc',
 890                 );
 891
 892                 if ( $user->useRCPatrol() ) {
 893                         $defaultPreferences['hidepatrolled'] = array(
 894                                 'type' => 'toggle',
 895                                 'section' => 'rc/advancedrc',
 896                                 'label-message' => 'tog-hidepatrolled',
 897                         );
 898                         $defaultPreferences['newpageshidepatrolled'] = array(
 899                                 'type' => 'toggle',
 900                                 'section' => 'rc/advancedrc',
 901                                 'label-message' => 'tog-newpageshidepatrolled',
 902                         );
 903                 }
 904
 905                 if ( $wgRCShowWatchingUsers ) {
 906                         $defaultPreferences['shownumberswatching'] = array(
 907                                 'type' => 'toggle',
 908                                 'section' => 'rc/advancedrc',
 909                                 'label-message' => 'tog-shownumberswatching',
 910                         );
 911                 }
 912         }
 913
 914         /**
 915          * @param User $user
 916          * @param IContextSource $context
 917          * @param array $defaultPreferences
 918          */
 919         static function watchlistPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 920                 global $wgUseRCPatrol, $wgEnableAPI, $wgRCMaxAge;
 921
 922                 $watchlistdaysMax = ceil( $wgRCMaxAge / ( 3600 * 24 ) );
 923
 924                 ## Watchlist #####################################
 925                 $defaultPreferences['watchlistdays'] = array(
 926                         'type' => 'float',
 927                         'min' => 0,
 928                         'max' => $watchlistdaysMax,
 929                         'section' => 'watchlist/displaywatchlist',
 930                         'help' => $context->msg( 'prefs-watchlist-days-max' )->numParams(
 931                                 $watchlistdaysMax )->text(),
 932                         'label-message' => 'prefs-watchlist-days',
 933                 );
 934                 $defaultPreferences['wllimit'] = array(
 935                         'type' => 'int',
 936                         'min' => 0,
 937                         'max' => 1000,
 938                         'label-message' => 'prefs-watchlist-edits',
 939                         'help' => $context->msg( 'prefs-watchlist-edits-max' )->escaped(),
 940                         'section' => 'watchlist/displaywatchlist',
 941                 );
 942                 $defaultPreferences['extendwatchlist'] = array(
 943                         'type' => 'toggle',
 944                         'section' => 'watchlist/advancedwatchlist',
 945                         'label-message' => 'tog-extendwatchlist',
 946                 );
 947                 $defaultPreferences['watchlisthideminor'] = array(
 948                         'type' => 'toggle',
 949                         'section' => 'watchlist/advancedwatchlist',
 950                         'label-message' => 'tog-watchlisthideminor',
 951                 );
 952                 $defaultPreferences['watchlisthidebots'] = array(
 953                         'type' => 'toggle',
 954                         'section' => 'watchlist/advancedwatchlist',
 955                         'label-message' => 'tog-watchlisthidebots',
 956                 );
 957                 $defaultPreferences['watchlisthideown'] = array(
 958                         'type' => 'toggle',
 959                         'section' => 'watchlist/advancedwatchlist',
 960                         'label-message' => 'tog-watchlisthideown',
 961                 );
 962                 $defaultPreferences['watchlisthideanons'] = array(
 963                         'type' => 'toggle',
 964                         'section' => 'watchlist/advancedwatchlist',
 965                         'label-message' => 'tog-watchlisthideanons',
 966                 );
 967                 $defaultPreferences['watchlisthideliu'] = array(
 968                         'type' => 'toggle',
 969                         'section' => 'watchlist/advancedwatchlist',
 970                         'label-message' => 'tog-watchlisthideliu',
 971                 );
 972
 973                 if ( $wgUseRCPatrol ) {
 974                         $defaultPreferences['watchlisthidepatrolled'] = array(
 975                                 'type' => 'toggle',
 976                                 'section' => 'watchlist/advancedwatchlist',
 977                                 'label-message' => 'tog-watchlisthidepatrolled',
 978                         );
 979                 }
 980
 981                 $watchTypes = array(
 982                         'edit' => 'watchdefault',
 983                         'move' => 'watchmoves',
 984                         'delete' => 'watchdeletion'
 985                 );
 986
 987                 // Kinda hacky
 988                 if ( $user->isAllowed( 'createpage' ) || $user->isAllowed( 'createtalk' ) ) {
 989                         $watchTypes['read'] = 'watchcreations';
 990                 }
 991
 992                 foreach ( $watchTypes as $action => $pref ) {
 993                         if ( $user->isAllowed( $action ) ) {
 994                                 // Messages:
 995                                 // tog-watchdefault, tog-watchmoves, tog-watchdeletion, tog-watchcreations
 996                                 $defaultPreferences[$pref] = array(
 997                                         'type' => 'toggle',
 998                                         'section' => 'watchlist/advancedwatchlist',
 999                                         'label-message' => "tog-$pref",
1000                                 );
1001                         }
1002                 }
1003
1004                 if ( $wgEnableAPI ) {
1005                         $defaultPreferences['watchlisttoken'] = array(
1006                                 'type' => 'api',
1007                         );
1008                         $defaultPreferences['watchlisttoken-info'] = array(
1009                                 'type' => 'info',
1010                                 'section' => 'watchlist/tokenwatchlist',
1011                                 'label-message' => 'prefs-watchlist-token',
1012                                 'default' => $user->getTokenFromOption( 'watchlisttoken' ),
1013                                 'help-message' => 'prefs-help-watchlist-token2',
1014                         );
1015                 }
1016         }
1017
1018         /**
1019          * @param User $user
1020          * @param IContextSource $context
1021          * @param array $defaultPreferences
1022          */
1023         static function searchPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1024                 foreach ( MWNamespace::getValidNamespaces() as $n ) {
1025                         $defaultPreferences[ 'searchNs' . $n ] = array(
1026                                 'type' => 'api',
1027                         );
1028                 }
1029         }
1030
1031         /**
1032          * Dummy, kept for backwards-compatibility.
1033          */
1034         static function miscPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1035         }
1036
1037         /**
1038          * @param User $user The User object
1039          * @param IContextSource $context
1040          * @return array Text/links to display as key; $skinkey as value
1041          */
1042         static function generateSkinOptions( $user, IContextSource $context ) {
1043                 global $wgDefaultSkin, $wgAllowUserCss, $wgAllowUserJs;
1044                 $ret = array();
1045
1046                 $mptitle = Title::newMainPage();
1047                 $previewtext = $context->msg( 'skin-preview' )->text();
1048
1049                 # Only show skins that aren't disabled in $wgSkipSkins
1050                 $validSkinNames = Skin::getAllowedSkins();
1051
1052                 # Sort by UI skin name. First though need to update validSkinNames as sometimes
1053                 # the skinkey & UI skinname differ (e.g. "standard" skinkey is "Classic" in the UI).
1054                 foreach ( $validSkinNames as $skinkey => &$skinname ) {
1055                         $msg = $context->msg( "skinname-{$skinkey}" );
1056                         if ( $msg->exists() ) {
1057                                 $skinname = htmlspecialchars( $msg->text() );
1058                         }
1059                 }
1060                 asort( $validSkinNames );
1061
1062                 foreach ( $validSkinNames as $skinkey => $sn ) {
1063                         $linkTools = array();
1064
1065                         # Mark the default skin
1066                         if ( $skinkey == $wgDefaultSkin ) {
1067                                 $linkTools[] = $context->msg( 'default' )->escaped();
1068                         }
1069
1070                         # Create preview link
1071                         $mplink = htmlspecialchars( $mptitle->getLocalURL( array( 'useskin' => $skinkey ) ) );
1072                         $linkTools[] = "<a target='_blank' href=\"$mplink\">$previewtext</a>";
1073
1074                         # Create links to user CSS/JS pages
1075                         if ( $wgAllowUserCss ) {
1076                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.css' );
1077                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
1078                         }
1079
1080                         if ( $wgAllowUserJs ) {
1081                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.js' );
1082                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
1083                         }
1084
1085                         $display = $sn . ' ' . $context->msg(
1086                                 'parentheses',
1087                                 $context->getLanguage()->pipeList( $linkTools )
1088                         )->text();
1089                         $ret[$display] = $skinkey;
1090                 }
1091
1092                 return $ret;
1093         }
1094
1095         /**
1096          * @param IContextSource $context
1097          * @return array
1098          */
1099         static function getDateOptions( IContextSource $context ) {
1100                 $lang = $context->getLanguage();
1101                 $dateopts = $lang->getDatePreferences();
1102
1103                 $ret = array();
1104
1105                 if ( $dateopts ) {
1106                         if ( !in_array( 'default', $dateopts ) ) {
1107                                 $dateopts[] = 'default'; // Make sure default is always valid
1108                                                                                 // Bug 19237
1109                         }
1110
1111                         // KLUGE: site default might not be valid for user language
1112                         global $wgDefaultUserOptions;
1113                         if ( !in_array( $wgDefaultUserOptions['date'], $dateopts ) ) {
1114                                 $wgDefaultUserOptions['date'] = 'default';
1115                         }
1116
1117                         $epoch = wfTimestampNow();
1118                         foreach ( $dateopts as $key ) {
1119                                 if ( $key == 'default' ) {
1120                                         $formatted = $context->msg( 'datedefault' )->escaped();
1121                                 } else {
1122                                         $formatted = htmlspecialchars( $lang->timeanddate( $epoch, false, $key ) );
1123                                 }
1124                                 $ret[$formatted] = $key;
1125                         }
1126                 }
1127                 return $ret;
1128         }
1129
1130         /**
1131          * @param IContextSource $context
1132          * @return array
1133          */
1134         static function getImageSizes( IContextSource $context ) {
1135                 global $wgImageLimits;
1136
1137                 $ret = array();
1138                 $pixels = $context->msg( 'unit-pixel' )->text();
1139
1140                 foreach ( $wgImageLimits as $index => $limits ) {
1141                         $display = "{$limits[0]}×{$limits[1]}" . $pixels;
1142                         $ret[$display] = $index;
1143                 }
1144
1145                 return $ret;
1146         }
1147
1148         /**
1149          * @param IContextSource $context
1150          * @return array
1151          */
1152         static function getThumbSizes( IContextSource $context ) {
1153                 global $wgThumbLimits;
1154
1155                 $ret = array();
1156                 $pixels = $context->msg( 'unit-pixel' )->text();
1157
1158                 foreach ( $wgThumbLimits as $index => $size ) {
1159                         $display = $size . $pixels;
1160                         $ret[$display] = $index;
1161                 }
1162
1163                 return $ret;
1164         }
1165
1166         /**
1167          * @param string $signature
1168          * @param array $alldata
1169          * @param HTMLForm $form
1170          * @return bool|string
1171          */
1172         static function validateSignature( $signature, $alldata, $form ) {
1173                 global $wgParser, $wgMaxSigChars;
1174                 if ( mb_strlen( $signature ) > $wgMaxSigChars ) {
1175                         return Xml::element( 'span', array( 'class' => 'error' ),
1176                                 $form->msg( 'badsiglength' )->numParams( $wgMaxSigChars )->text() );
1177                 } elseif ( isset( $alldata['fancysig'] ) &&
1178                                 $alldata['fancysig'] &&
1179                                 $wgParser->validateSig( $signature ) === false
1180                 ) {
1181                         return Xml::element(
1182                                 'span',
1183                                 array( 'class' => 'error' ),
1184                                 $form->msg( 'badsig' )->text()
1185                         );
1186                 } else {
1187                         return true;
1188                 }
1189         }
1190
1191         /**
1192          * @param string $signature
1193          * @param array $alldata
1194          * @param HTMLForm $form
1195          * @return string
1196          */
1197         static function cleanSignature( $signature, $alldata, $form ) {
1198                 if ( isset( $alldata['fancysig'] ) && $alldata['fancysig'] ) {
1199                         global $wgParser;
1200                         $signature = $wgParser->cleanSig( $signature );
1201                 } else {
1202                         // When no fancy sig used, make sure ~{3,5} get removed.
1203                         $signature = Parser::cleanSigInSig( $signature );
1204                 }
1205
1206                 return $signature;
1207         }
1208
1209         /**
1210          * @param User $user
1211          * @param IContextSource $context
1212          * @param string $formClass
1213          * @param array $remove Array of items to remove
1214          * @return HtmlForm
1215          */
1216         static function getFormObject(
1217                 $user,
1218                 IContextSource $context,
1219                 $formClass = 'PreferencesForm',
1220                 array $remove = array()
1221         ) {
1222                 $formDescriptor = Preferences::getPreferences( $user, $context );
1223                 if ( count( $remove ) ) {
1224                         $removeKeys = array_flip( $remove );
1225                         $formDescriptor = array_diff_key( $formDescriptor, $removeKeys );
1226                 }
1227
1228                 // Remove type=api preferences. They are not intended for rendering in the form.
1229                 foreach ( $formDescriptor as $name => $info ) {
1230                         if ( isset( $info['type'] ) && $info['type'] === 'api' ) {
1231                                 unset( $formDescriptor[$name] );
1232                         }
1233                 }
1234
1235                 /**
1236                  * @var $htmlForm PreferencesForm
1237                  */
1238                 $htmlForm = new $formClass( $formDescriptor, $context, 'prefs' );
1239
1240                 $htmlForm->setModifiedUser( $user );
1241                 $htmlForm->setId( 'mw-prefs-form' );
1242                 $htmlForm->setSubmitText( $context->msg( 'saveprefs' )->text() );
1243                 # Used message keys: 'accesskey-preferences-save', 'tooltip-preferences-save'
1244                 $htmlForm->setSubmitTooltip( 'preferences-save' );
1245                 $htmlForm->setSubmitID( 'prefsubmit' );
1246                 $htmlForm->setSubmitCallback( array( 'Preferences', 'tryFormSubmit' ) );
1247
1248                 return $htmlForm;
1249         }
1250
1251         /**
1252          * @param IContextSource $context
1253          * @return array
1254          */
1255         static function getTimezoneOptions( IContextSource $context ) {
1256                 $opt = array();
1257
1258                 global $wgLocalTZoffset;
1259                 $timestamp = MWTimestamp::getLocalInstance();
1260                 // Check that $wgLocalTZoffset is the same as the local time zone offset
1261                 if ( $wgLocalTZoffset == $timestamp->format( 'Z' ) / 60 ) {
1262                         $server_tz_msg = $context->msg(
1263                                 'timezoneuseserverdefault',
1264                                 $timestamp->getTimezone()->getName()
1265                         )->text();
1266                 } else {
1267                         $tzstring = sprintf(
1268                                 '%+03d:%02d',
1269                                 floor( $wgLocalTZoffset / 60 ),
1270                                 abs( $wgLocalTZoffset ) % 60
1271                         );
1272                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $tzstring )->text();
1273                 }
1274                 $opt[$server_tz_msg] = "System|$wgLocalTZoffset";
1275                 $opt[$context->msg( 'timezoneuseoffset' )->text()] = 'other';
1276                 $opt[$context->msg( 'guesstimezone' )->text()] = 'guess';
1277
1278                 if ( function_exists( 'timezone_identifiers_list' ) ) {
1279                         # Read timezone list
1280                         $tzs = timezone_identifiers_list();
1281                         sort( $tzs );
1282
1283                         $tzRegions = array();
1284                         $tzRegions['Africa'] = $context->msg( 'timezoneregion-africa' )->text();
1285                         $tzRegions['America'] = $context->msg( 'timezoneregion-america' )->text();
1286                         $tzRegions['Antarctica'] = $context->msg( 'timezoneregion-antarctica' )->text();
1287                         $tzRegions['Arctic'] = $context->msg( 'timezoneregion-arctic' )->text();
1288                         $tzRegions['Asia'] = $context->msg( 'timezoneregion-asia' )->text();
1289                         $tzRegions['Atlantic'] = $context->msg( 'timezoneregion-atlantic' )->text();
1290                         $tzRegions['Australia'] = $context->msg( 'timezoneregion-australia' )->text();
1291                         $tzRegions['Europe'] = $context->msg( 'timezoneregion-europe' )->text();
1292                         $tzRegions['Indian'] = $context->msg( 'timezoneregion-indian' )->text();
1293                         $tzRegions['Pacific'] = $context->msg( 'timezoneregion-pacific' )->text();
1294                         asort( $tzRegions );
1295
1296                         $prefill = array_fill_keys( array_values( $tzRegions ), array() );
1297                         $opt = array_merge( $opt, $prefill );
1298
1299                         $now = date_create( 'now' );
1300
1301                         foreach ( $tzs as $tz ) {
1302                                 $z = explode( '/', $tz, 2 );
1303
1304                                 # timezone_identifiers_list() returns a number of
1305                                 # backwards-compatibility entries. This filters them out of the
1306                                 # list presented to the user.
1307                                 if ( count( $z ) != 2 || !array_key_exists( $z[0], $tzRegions ) ) {
1308                                         continue;
1309                                 }
1310
1311                                 # Localize region
1312                                 $z[0] = $tzRegions[$z[0]];
1313
1314                                 $minDiff = floor( timezone_offset_get( timezone_open( $tz ), $now ) / 60 );
1315
1316                                 $display = str_replace( '_', ' ', $z[0] . '/' . $z[1] );
1317                                 $value = "ZoneInfo|$minDiff|$tz";
1318
1319                                 $opt[$z[0]][$display] = $value;
1320                         }
1321                 }
1322                 return $opt;
1323         }
1324
1325         /**
1326          * @param string $value
1327          * @param array $alldata
1328          * @return int
1329          */
1330         static function filterIntval( $value, $alldata ) {
1331                 return intval( $value );
1332         }
1333
1334         /**
1335          * @param string $tz
1336          * @param array $alldata
1337          * @return string
1338          */
1339         static function filterTimezoneInput( $tz, $alldata ) {
1340                 $data = explode( '|', $tz, 3 );
1341                 switch ( $data[0] ) {
1342                         case 'ZoneInfo':
1343                         case 'System':
1344                                 return $tz;
1345                         default:
1346                                 $data = explode( ':', $tz, 2 );
1347                                 if ( count( $data ) == 2 ) {
1348                                         $data[0] = intval( $data[0] );
1349                                         $data[1] = intval( $data[1] );
1350                                         $minDiff = abs( $data[0] ) * 60 + $data[1];
1351                                         if ( $data[0] < 0 ) {
1352                                                 $minDiff = - $minDiff;
1353                                         }
1354                                 } else {
1355                                         $minDiff = intval( $data[0] ) * 60;
1356                                 }
1357
1358                                 # Max is +14:00 and min is -12:00, see:
1359                                 # http://en.wikipedia.org/wiki/Timezone
1360                                 $minDiff = min( $minDiff, 840 );  # 14:00
1361                                 $minDiff = max( $minDiff, - 720 ); # -12:00
1362                                 return 'Offset|' . $minDiff;
1363                 }
1364         }
1365
1366         /**
1367          * Handle the form submission if everything validated properly
1368          *
1369          * @param array $formData
1370          * @param PreferencesForm $form
1371          * @return bool|Status|string
1372          */
1373         static function tryFormSubmit( $formData, $form ) {
1374                 global $wgHiddenPrefs, $wgAuth;
1375
1376                 $user = $form->getModifiedUser();
1377                 $result = true;
1378
1379                 if ( !$user->isAllowedAny( 'editmyprivateinfo', 'editmyoptions' ) ) {
1380                         return Status::newFatal( 'mypreferencesprotected' );
1381                 }
1382
1383                 // Filter input
1384                 foreach ( array_keys( $formData ) as $name ) {
1385                         if ( isset( self::$saveFilters[$name] ) ) {
1386                                 $formData[$name] =
1387                                         call_user_func( self::$saveFilters[$name], $formData[$name], $formData );
1388                         }
1389                 }
1390
1391                 // Fortunately, the realname field is MUCH simpler
1392                 // (not really "private", but still shouldn't be edited without permission)
1393                 if ( !in_array( 'realname', $wgHiddenPrefs )
1394                         && $user->isAllowed( 'editmyprivateinfo' )
1395                         && array_key_exists( 'realname', $formData )
1396                 ) {
1397                         $realName = $formData['realname'];
1398                         $user->setRealName( $realName );
1399                 }
1400
1401                 if ( $user->isAllowed( 'editmyoptions' ) ) {
1402                         foreach ( self::$saveBlacklist as $b ) {
1403                                 unset( $formData[$b] );
1404                         }
1405
1406                         # If users have saved a value for a preference which has subsequently been disabled
1407                         # via $wgHiddenPrefs, we don't want to destroy that setting in case the preference
1408                         # is subsequently re-enabled
1409                         foreach ( $wgHiddenPrefs as $pref ) {
1410                                 # If the user has not set a non-default value here, the default will be returned
1411                                 # and subsequently discarded
1412                                 $formData[$pref] = $user->getOption( $pref, null, true );
1413                         }
1414
1415                         // Keep old preferences from interfering due to back-compat code, etc.
1416                         $user->resetOptions( 'unused', $form->getContext() );
1417
1418                         foreach ( $formData as $key => $value ) {
1419                                 $user->setOption( $key, $value );
1420                         }
1421
1422                         wfRunHooks( 'PreferencesFormPreSave', array( $formData, $form, $user, &$result ) );
1423                         $user->saveSettings();
1424                 }
1425
1426                 $wgAuth->updateExternalDB( $user );
1427
1428                 return $result;
1429         }
1430
1431         /**
1432          * @param array $formData
1433          * @param PreferencesForm $form
1434          * @return Status
1435          */
1436         public static function tryUISubmit( $formData, $form ) {
1437                 $res = self::tryFormSubmit( $formData, $form );
1438
1439                 if ( $res ) {
1440                         $urlOptions = array( 'success' => 1 );
1441
1442                         if ( $res === 'eauth' ) {
1443                                 $urlOptions['eauth'] = 1;
1444                         }
1445
1446                         $urlOptions += $form->getExtraSuccessRedirectParameters();
1447
1448                         $url = $form->getTitle()->getFullURL( $urlOptions );
1449
1450                         $form->getContext()->getOutput()->redirect( $url );
1451                 }
1452
1453                 return Status::newGood();
1454         }
1455
1456         /**
1457          * Try to set a user's email address.
1458          * This does *not* try to validate the address.
1459          * Caller is responsible for checking $wgAuth and 'editmyprivateinfo'
1460          * right.
1461          *
1462          * @deprecated since 1.20; use User::setEmailWithConfirmation() instead.
1463          * @param User $user
1464          * @param string $newaddr New email address
1465          * @return array (true on success or Status on failure, info string)
1466          */
1467         public static function trySetUserEmail( User $user, $newaddr ) {
1468                 wfDeprecated( __METHOD__, '1.20' );
1469
1470                 $result = $user->setEmailWithConfirmation( $newaddr );
1471                 if ( $result->isGood() ) {
1472                         return array( true, $result->value );
1473                 } else {
1474                         return array( $result, 'mailerror' );
1475                 }
1476         }
1477 }
1478
1479 /** Some tweaks to allow js prefs to work */
1480 class PreferencesForm extends HTMLForm {
1481         // Override default value from HTMLForm
1482         protected $mSubSectionBeforeFields = false;
1483
1484         private $modifiedUser;
1485
1486         /**
1487          * @param User $user
1488          */
1489         public function setModifiedUser( $user ) {
1490                 $this->modifiedUser = $user;
1491         }
1492
1493         /**
1494          * @return User
1495          */
1496         public function getModifiedUser() {
1497                 if ( $this->modifiedUser === null ) {
1498                         return $this->getUser();
1499                 } else {
1500                         return $this->modifiedUser;
1501                 }
1502         }
1503
1504         /**
1505          * Get extra parameters for the query string when redirecting after
1506          * successful save.
1507          *
1508          * @return array()
1509          */
1510         public function getExtraSuccessRedirectParameters() {
1511                 return array();
1512         }
1513
1514         /**
1515          * @param string $html
1516          * @return string
1517          */
1518         function wrapForm( $html ) {
1519                 $html = Xml::tags( 'div', array( 'id' => 'preferences' ), $html );
1520
1521                 return parent::wrapForm( $html );
1522         }
1523
1524         /**
1525          * @return string
1526          */
1527         function getButtons() {
1528                 if ( !$this->getModifiedUser()->isAllowedAny( 'editmyprivateinfo', 'editmyoptions' ) ) {
1529                         return '';
1530                 }
1531
1532                 $html = parent::getButtons();
1533
1534                 if ( $this->getModifiedUser()->isAllowed( 'editmyoptions' ) ) {
1535                         $t = SpecialPage::getTitleFor( 'Preferences', 'reset' );
1536
1537                         $html .= "\n" . Linker::link( $t, $this->msg( 'restoreprefs' )->escaped() );
1538
1539                         $html = Xml::tags( 'div', array( 'class' => 'mw-prefs-buttons' ), $html );
1540                 }
1541
1542                 return $html;
1543         }
1544
1545         /**
1546          * Separate multi-option preferences into multiple preferences, since we
1547          * have to store them separately
1548          * @param array $data
1549          * @return array
1550          */
1551         function filterDataForSubmit( $data ) {
1552                 foreach ( $this->mFlatFields as $fieldname => $field ) {
1553                         if ( $field instanceof HTMLNestedFilterable ) {
1554                                 $info = $field->mParams;
1555                                 $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $fieldname;
1556                                 foreach ( $field->filterDataForSubmit( $data[$fieldname] ) as $key => $value ) {
1557                                         $data["$prefix$key"] = $value;
1558                                 }
1559                                 unset( $data[$fieldname] );
1560                         }
1561                 }
1562
1563                 return $data;
1564         }
1565
1566         /**
1567          * Get the whole body of the form.
1568          * @return string
1569          */
1570         function getBody() {
1571                 return $this->displaySection( $this->mFieldTree, '', 'mw-prefsection-' );
1572         }
1573
1574         /**
1575          * Get the "<legend>" for a given section key. Normally this is the
1576          * prefs-$key message but we'll allow extensions to override it.
1577          * @param string $key
1578          * @return string
1579          */
1580         function getLegend( $key ) {
1581                 $legend = parent::getLegend( $key );
1582                 wfRunHooks( 'PreferencesGetLegend', array( $this, $key, &$legend ) );
1583                 return $legend;
1584         }
1585 }