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                 ## Remove preferences that wikis don't want to use
 102                 global $wgHiddenPrefs;
 103                 foreach ( $wgHiddenPrefs as $pref ) {
 104                         if ( isset( $defaultPreferences[$pref] ) ) {
 105                                 unset( $defaultPreferences[$pref] );
 106                         }
 107                 }
 108
 109                 ## Make sure that form fields have their parent set. See bug 41337.
 110                 $dummyForm = new HTMLForm( array(), $context );
 111
 112                 $disable = !$user->isAllowed( 'editmyoptions' );
 113
 114                 ## Prod in defaults from the user
 115                 foreach ( $defaultPreferences as $name => &$info ) {
 116                         $prefFromUser = self::getOptionFromUser( $name, $info, $user );
 117                         if ( $disable && !in_array( $name, self::$saveBlacklist ) ) {
 118                                 $info['disabled'] = 'disabled';
 119                         }
 120                         $field = HTMLForm::loadInputFromParameters( $name, $info ); // For validation
 121                         $field->mParent = $dummyForm;
 122                         $defaultOptions = User::getDefaultOptions();
 123                         $globalDefault = isset( $defaultOptions[$name] )
 124                                 ? $defaultOptions[$name]
 125                                 : null;
 126
 127                         // If it validates, set it as the default
 128                         if ( isset( $info['default'] ) ) {
 129                                 // Already set, no problem
 130                                 continue;
 131                         } elseif ( !is_null( $prefFromUser ) && // Make sure we're not just pulling nothing
 132                                         $field->validate( $prefFromUser, $user->getOptions() ) === true ) {
 133                                 $info['default'] = $prefFromUser;
 134                         } elseif ( $field->validate( $globalDefault, $user->getOptions() ) === true ) {
 135                                 $info['default'] = $globalDefault;
 136                         } else {
 137                                 throw new MWException( "Global default '$globalDefault' is invalid for field $name" );
 138                         }
 139                 }
 140
 141                 self::$defaultPreferences = $defaultPreferences;
 142
 143                 return $defaultPreferences;
 144         }
 145
 146         /**
 147          * Pull option from a user account. Handles stuff like array-type preferences.
 148          *
 149          * @param string $name
 150          * @param array $info
 151          * @param User $user
 152          * @return array|string
 153          */
 154         static function getOptionFromUser( $name, $info, $user ) {
 155                 $val = $user->getOption( $name );
 156
 157                 // Handling for multiselect preferences
 158                 if ( ( isset( $info['type'] ) && $info['type'] == 'multiselect' ) ||
 159                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLMultiSelectField' ) ) {
 160                         $options = HTMLFormField::flattenOptions( $info['options'] );
 161                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 162                         $val = array();
 163
 164                         foreach ( $options as $value ) {
 165                                 if ( $user->getOption( "$prefix$value" ) ) {
 166                                         $val[] = $value;
 167                                 }
 168                         }
 169                 }
 170
 171                 // Handling for checkmatrix preferences
 172                 if ( ( isset( $info['type'] ) && $info['type'] == 'checkmatrix' ) ||
 173                                 ( isset( $info['class'] ) && $info['class'] == 'HTMLCheckMatrix' ) ) {
 174                         $columns = HTMLFormField::flattenOptions( $info['columns'] );
 175                         $rows = HTMLFormField::flattenOptions( $info['rows'] );
 176                         $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $name;
 177                         $val = array();
 178
 179                         foreach ( $columns as $column ) {
 180                                 foreach ( $rows as $row ) {
 181                                         if ( $user->getOption( "$prefix$column-$row" ) ) {
 182                                                 $val[] = "$column-$row";
 183                                         }
 184                                 }
 185                         }
 186                 }
 187
 188                 return $val;
 189         }
 190
 191         /**
 192          * @param User $user
 193          * @param IContextSource $context
 194          * @param array $defaultPreferences
 195          * @return void
 196          */
 197         static function profilePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 198                 global $wgAuth, $wgContLang, $wgParser, $wgCookieExpiration, $wgLanguageCode,
 199                         $wgDisableLangConversion, $wgMaxSigChars,
 200                         $wgEnableEmail, $wgEmailConfirmToEdit, $wgEnableUserEmail, $wgEmailAuthentication,
 201                         $wgEnotifWatchlist, $wgEnotifUserTalk, $wgEnotifRevealEditorAddress,
 202                         $wgSecureLogin;
 203
 204                 // retrieving user name for GENDER and misc.
 205                 $userName = $user->getName();
 206
 207                 ## User info #####################################
 208                 // Information panel
 209                 $defaultPreferences['username'] = array(
 210                         'type' => 'info',
 211                         'label-message' => array( 'username', $userName ),
 212                         'default' => $userName,
 213                         'section' => 'personal/info',
 214                 );
 215
 216                 # Get groups to which the user belongs
 217                 $userEffectiveGroups = $user->getEffectiveGroups();
 218                 $userGroups = $userMembers = array();
 219                 foreach ( $userEffectiveGroups as $ueg ) {
 220                         if ( $ueg == '*' ) {
 221                                 // Skip the default * group, seems useless here
 222                                 continue;
 223                         }
 224                         $groupName = User::getGroupName( $ueg );
 225                         $userGroups[] = User::makeGroupLinkHTML( $ueg, $groupName );
 226
 227                         $memberName = User::getGroupMember( $ueg, $userName );
 228                         $userMembers[] = User::makeGroupLinkHTML( $ueg, $memberName );
 229                 }
 230                 asort( $userGroups );
 231                 asort( $userMembers );
 232
 233                 $lang = $context->getLanguage();
 234
 235                 $defaultPreferences['usergroups'] = array(
 236                         'type' => 'info',
 237                         'label' => $context->msg( 'prefs-memberingroups' )->numParams(
 238                                 count( $userGroups ) )->params( $userName )->parse(),
 239                         'default' => $context->msg( 'prefs-memberingroups-type',
 240                                 $lang->commaList( $userGroups ),
 241                                 $lang->commaList( $userMembers )
 242                         )->plain(),
 243                         'raw' => true,
 244                         'section' => 'personal/info',
 245                 );
 246
 247                 $editCount = Linker::link( SpecialPage::getTitleFor( "Contributions", $userName ),
 248                         $lang->formatNum( $user->getEditCount() ) );
 249
 250                 $defaultPreferences['editcount'] = array(
 251                         'type' => 'info',
 252                         'raw' => true,
 253                         'label-message' => 'prefs-edits',
 254                         'default' => $editCount,
 255                         'section' => 'personal/info',
 256                 );
 257
 258                 if ( $user->getRegistration() ) {
 259                         $displayUser = $context->getUser();
 260                         $userRegistration = $user->getRegistration();
 261                         $defaultPreferences['registrationdate'] = array(
 262                                 'type' => 'info',
 263                                 'label-message' => 'prefs-registration',
 264                                 'default' => $context->msg(
 265                                         'prefs-registration-date-time',
 266                                         $lang->userTimeAndDate( $userRegistration, $displayUser ),
 267                                         $lang->userDate( $userRegistration, $displayUser ),
 268                                         $lang->userTime( $userRegistration, $displayUser )
 269                                 )->parse(),
 270                                 'section' => 'personal/info',
 271                         );
 272                 }
 273
 274                 $canViewPrivateInfo = $user->isAllowed( 'viewmyprivateinfo' );
 275                 $canEditPrivateInfo = $user->isAllowed( 'editmyprivateinfo' );
 276
 277                 // Actually changeable stuff
 278                 $defaultPreferences['realname'] = array(
 279                         // (not really "private", but still shouldn't be edited without permission)
 280                         'type' => $canEditPrivateInfo && $wgAuth->allowPropChange( 'realname' ) ? 'text' : 'info',
 281                         'default' => $user->getRealName(),
 282                         'section' => 'personal/info',
 283                         'label-message' => 'yourrealname',
 284                         'help-message' => 'prefs-help-realname',
 285                 );
 286
 287                 if ( $canEditPrivateInfo && $wgAuth->allowPasswordChange() ) {
 288                         $link = Linker::link( SpecialPage::getTitleFor( 'ChangePassword' ),
 289                                 $context->msg( 'prefs-resetpass' )->escaped(), array(),
 290                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ) );
 291
 292                         $defaultPreferences['password'] = array(
 293                                 'type' => 'info',
 294                                 'raw' => true,
 295                                 'default' => $link,
 296                                 'label-message' => 'yourpassword',
 297                                 'section' => 'personal/info',
 298                         );
 299                 }
 300                 // Only show prefershttps if secure login is turned on
 301                 if ( $wgSecureLogin && wfCanIPUseHTTPS( $context->getRequest()->getIP() ) ) {
 302                         $defaultPreferences['prefershttps'] = array(
 303                                 'type' => 'toggle',
 304                                 'label-message' => 'tog-prefershttps',
 305                                 'help-message' => 'prefs-help-prefershttps',
 306                                 'section' => 'personal/info'
 307                         );
 308                 }
 309
 310                 // Language
 311                 $languages = Language::fetchLanguageNames( null, 'mw' );
 312                 if ( !array_key_exists( $wgLanguageCode, $languages ) ) {
 313                         $languages[$wgLanguageCode] = $wgLanguageCode;
 314                 }
 315                 ksort( $languages );
 316
 317                 $options = array();
 318                 foreach ( $languages as $code => $name ) {
 319                         $display = wfBCP47( $code ) . ' - ' . $name;
 320                         $options[$display] = $code;
 321                 }
 322                 $defaultPreferences['language'] = array(
 323                         'type' => 'select',
 324                         'section' => 'personal/i18n',
 325                         'options' => $options,
 326                         'label-message' => 'yourlanguage',
 327                 );
 328
 329                 $defaultPreferences['gender'] = array(
 330                         'type' => 'radio',
 331                         'section' => 'personal/i18n',
 332                         'options' => array(
 333                                 $context->msg( 'parentheses',
 334                                         $context->msg( 'gender-unknown' )->text()
 335                                 )->text() => 'unknown',
 336                                 $context->msg( 'gender-female' )->text() => 'female',
 337                                 $context->msg( 'gender-male' )->text() => 'male',
 338                         ),
 339                         'label-message' => 'yourgender',
 340                         'help-message' => 'prefs-help-gender',
 341                 );
 342
 343                 // see if there are multiple language variants to choose from
 344                 if ( !$wgDisableLangConversion ) {
 345                         foreach ( LanguageConverter::$languagesWithVariants as $langCode ) {
 346                                 if ( $langCode == $wgContLang->getCode() ) {
 347                                         $variants = $wgContLang->getVariants();
 348
 349                                         if ( count( $variants ) <= 1 ) {
 350                                                 continue;
 351                                         }
 352
 353                                         $variantArray = array();
 354                                         foreach ( $variants as $v ) {
 355                                                 $v = str_replace( '_', '-', strtolower( $v ) );
 356                                                 $variantArray[$v] = $lang->getVariantname( $v, false );
 357                                         }
 358
 359                                         $options = array();
 360                                         foreach ( $variantArray as $code => $name ) {
 361                                                 $display = wfBCP47( $code ) . ' - ' . $name;
 362                                                 $options[$display] = $code;
 363                                         }
 364
 365                                         $defaultPreferences['variant'] = array(
 366                                                 'label-message' => 'yourvariant',
 367                                                 'type' => 'select',
 368                                                 'options' => $options,
 369                                                 'section' => 'personal/i18n',
 370                                                 'help-message' => 'prefs-help-variant',
 371                                         );
 372                                 } else {
 373                                         $defaultPreferences["variant-$langCode"] = array(
 374                                                 'type' => 'api',
 375                                         );
 376                                 }
 377                         }
 378                 }
 379
 380                 // Stuff from Language::getExtraUserToggles()
 381                 // FIXME is this dead code? $extraUserToggles doesn't seem to be defined for any language
 382                 $toggles = $wgContLang->getExtraUserToggles();
 383
 384                 foreach ( $toggles as $toggle ) {
 385                         $defaultPreferences[$toggle] = array(
 386                                 'type' => 'toggle',
 387                                 'section' => 'personal/i18n',
 388                                 'label-message' => "tog-$toggle",
 389                         );
 390                 }
 391
 392                 // show a preview of the old signature first
 393                 $oldsigWikiText = $wgParser->preSaveTransform(
 394                         '~~~',
 395                         $context->getTitle(),
 396                         $user,
 397                         ParserOptions::newFromContext( $context )
 398                 );
 399                 $oldsigHTML = $context->getOutput()->parseInline( $oldsigWikiText, true, true );
 400                 $defaultPreferences['oldsig'] = array(
 401                         'type' => 'info',
 402                         'raw' => true,
 403                         'label-message' => 'tog-oldsig',
 404                         'default' => $oldsigHTML,
 405                         'section' => 'personal/signature',
 406                 );
 407                 $defaultPreferences['nickname'] = array(
 408                         'type' => $wgAuth->allowPropChange( 'nickname' ) ? 'text' : 'info',
 409                         'maxlength' => $wgMaxSigChars,
 410                         'label-message' => 'yournick',
 411                         'validation-callback' => array( 'Preferences', 'validateSignature' ),
 412                         'section' => 'personal/signature',
 413                         'filter-callback' => array( 'Preferences', 'cleanSignature' ),
 414                 );
 415                 $defaultPreferences['fancysig'] = array(
 416                         'type' => 'toggle',
 417                         'label-message' => 'tog-fancysig',
 418                         // show general help about signature at the bottom of the section
 419                         'help-message' => 'prefs-help-signature',
 420                         'section' => 'personal/signature'
 421                 );
 422
 423                 ## Email stuff
 424
 425                 if ( $wgEnableEmail ) {
 426                         if ( $canViewPrivateInfo ) {
 427                                 $helpMessages[] = $wgEmailConfirmToEdit
 428                                                 ? 'prefs-help-email-required'
 429                                                 : 'prefs-help-email';
 430
 431                                 if ( $wgEnableUserEmail ) {
 432                                         // additional messages when users can send email to each other
 433                                         $helpMessages[] = 'prefs-help-email-others';
 434                                 }
 435
 436                                 $emailAddress = $user->getEmail() ? htmlspecialchars( $user->getEmail() ) : '';
 437                                 if ( $canEditPrivateInfo && $wgAuth->allowPropChange( 'emailaddress' ) ) {
 438                                         $link = Linker::link(
 439                                                 SpecialPage::getTitleFor( 'ChangeEmail' ),
 440                                                 $context->msg( $user->getEmail() ? 'prefs-changeemail' : 'prefs-setemail' )->escaped(),
 441                                                 array(),
 442                                                 array( 'returnto' => SpecialPage::getTitleFor( 'Preferences' )->getPrefixedText() ) );
 443
 444                                         $emailAddress .= $emailAddress == '' ? $link : (
 445                                                 $context->msg( 'word-separator' )->plain()
 446                                                 . $context->msg( 'parentheses' )->rawParams( $link )->plain()
 447                                         );
 448                                 }
 449
 450                                 $defaultPreferences['emailaddress'] = array(
 451                                         'type' => 'info',
 452                                         'raw' => true,
 453                                         'default' => $emailAddress,
 454                                         'label-message' => 'youremail',
 455                                         'section' => 'personal/email',
 456                                         'help-messages' => $helpMessages,
 457                                         # 'cssclass' chosen below
 458                                 );
 459                         }
 460
 461                         $disableEmailPrefs = false;
 462
 463                         if ( $wgEmailAuthentication ) {
 464                                 $emailauthenticationclass = 'mw-email-not-authenticated';
 465                                 if ( $user->getEmail() ) {
 466                                         if ( $user->getEmailAuthenticationTimestamp() ) {
 467                                                 // date and time are separate parameters to facilitate localisation.
 468                                                 // $time is kept for backward compat reasons.
 469                                                 // 'emailauthenticated' is also used in SpecialConfirmemail.php
 470                                                 $displayUser = $context->getUser();
 471                                                 $emailTimestamp = $user->getEmailAuthenticationTimestamp();
 472                                                 $time = $lang->userTimeAndDate( $emailTimestamp, $displayUser );
 473                                                 $d = $lang->userDate( $emailTimestamp, $displayUser );
 474                                                 $t = $lang->userTime( $emailTimestamp, $displayUser );
 475                                                 $emailauthenticated = $context->msg( 'emailauthenticated',
 476                                                         $time, $d, $t )->parse() . '<br />';
 477                                                 $disableEmailPrefs = false;
 478                                                 $emailauthenticationclass = 'mw-email-authenticated';
 479                                         } else {
 480                                                 $disableEmailPrefs = true;
 481                                                 $emailauthenticated = $context->msg( 'emailnotauthenticated' )->parse() . '<br />' .
 482                                                         Linker::linkKnown(
 483                                                                 SpecialPage::getTitleFor( 'Confirmemail' ),
 484                                                                 $context->msg( 'emailconfirmlink' )->escaped()
 485                                                         ) . '<br />';
 486                                                 $emailauthenticationclass = "mw-email-not-authenticated";
 487                                         }
 488                                 } else {
 489                                         $disableEmailPrefs = true;
 490                                         $emailauthenticated = $context->msg( 'noemailprefs' )->escaped();
 491                                         $emailauthenticationclass = 'mw-email-none';
 492                                 }
 493
 494                                 if ( $canViewPrivateInfo ) {
 495                                         $defaultPreferences['emailauthentication'] = array(
 496                                                 'type' => 'info',
 497                                                 'raw' => true,
 498                                                 'section' => 'personal/email',
 499                                                 'label-message' => 'prefs-emailconfirm-label',
 500                                                 'default' => $emailauthenticated,
 501                                                 # Apply the same CSS class used on the input to the message:
 502                                                 'cssclass' => $emailauthenticationclass,
 503                                         );
 504                                         $defaultPreferences['emailaddress']['cssclass'] = $emailauthenticationclass;
 505                                 }
 506                         }
 507
 508                         if ( $wgEnableUserEmail && $user->isAllowed( 'sendemail' ) ) {
 509                                 $defaultPreferences['disablemail'] = array(
 510                                         'type' => 'toggle',
 511                                         'invert' => true,
 512                                         'section' => 'personal/email',
 513                                         'label-message' => 'allowemail',
 514                                         'disabled' => $disableEmailPrefs,
 515                                 );
 516                                 $defaultPreferences['ccmeonemails'] = array(
 517                                         'type' => 'toggle',
 518                                         'section' => 'personal/email',
 519                                         'label-message' => 'tog-ccmeonemails',
 520                                         'disabled' => $disableEmailPrefs,
 521                                 );
 522                         }
 523
 524                         if ( $wgEnotifWatchlist ) {
 525                                 $defaultPreferences['enotifwatchlistpages'] = array(
 526                                         'type' => 'toggle',
 527                                         'section' => 'personal/email',
 528                                         'label-message' => 'tog-enotifwatchlistpages',
 529                                         'disabled' => $disableEmailPrefs,
 530                                 );
 531                         }
 532                         if ( $wgEnotifUserTalk ) {
 533                                 $defaultPreferences['enotifusertalkpages'] = array(
 534                                         'type' => 'toggle',
 535                                         'section' => 'personal/email',
 536                                         'label-message' => 'tog-enotifusertalkpages',
 537                                         'disabled' => $disableEmailPrefs,
 538                                 );
 539                         }
 540                         if ( $wgEnotifUserTalk || $wgEnotifWatchlist ) {
 541                                 $defaultPreferences['enotifminoredits'] = array(
 542                                         'type' => 'toggle',
 543                                         'section' => 'personal/email',
 544                                         'label-message' => 'tog-enotifminoredits',
 545                                         'disabled' => $disableEmailPrefs,
 546                                 );
 547
 548                                 if ( $wgEnotifRevealEditorAddress ) {
 549                                         $defaultPreferences['enotifrevealaddr'] = array(
 550                                                 'type' => 'toggle',
 551                                                 'section' => 'personal/email',
 552                                                 'label-message' => 'tog-enotifrevealaddr',
 553                                                 'disabled' => $disableEmailPrefs,
 554                                         );
 555                                 }
 556                         }
 557                 }
 558         }
 559
 560         /**
 561          * @param User $user
 562          * @param IContextSource $context
 563          * @param array $defaultPreferences
 564          * @return void
 565          */
 566         static function skinPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 567                 ## Skin #####################################
 568                 global $wgAllowUserCss, $wgAllowUserJs;
 569
 570                 $defaultPreferences['skin'] = array(
 571                         'type' => 'radio',
 572                         'options' => self::generateSkinOptions( $user, $context ),
 573                         'label' => '&#160;',
 574                         'section' => 'rendering/skin',
 575                 );
 576
 577                 # Create links to user CSS/JS pages for all skins
 578                 # This code is basically copied from generateSkinOptions().  It'd
 579                 # be nice to somehow merge this back in there to avoid redundancy.
 580                 if ( $wgAllowUserCss || $wgAllowUserJs ) {
 581                         $linkTools = array();
 582                         $userName = $user->getName();
 583
 584                         if ( $wgAllowUserCss ) {
 585                                 $cssPage = Title::makeTitleSafe( NS_USER, $userName . '/common.css' );
 586                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
 587                         }
 588
 589                         if ( $wgAllowUserJs ) {
 590                                 $jsPage = Title::makeTitleSafe( NS_USER, $userName . '/common.js' );
 591                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
 592                         }
 593
 594                         $defaultPreferences['commoncssjs'] = array(
 595                                 'type' => 'info',
 596                                 'raw' => true,
 597                                 'default' => $context->getLanguage()->pipeList( $linkTools ),
 598                                 'label-message' => 'prefs-common-css-js',
 599                                 'section' => 'rendering/skin',
 600                         );
 601                 }
 602         }
 603
 604         /**
 605          * @param User $user
 606          * @param IContextSource $context
 607          * @param array $defaultPreferences
 608          */
 609         static function filesPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 610                 ## Files #####################################
 611                 $defaultPreferences['imagesize'] = array(
 612                         'type' => 'select',
 613                         'options' => self::getImageSizes( $context ),
 614                         'label-message' => 'imagemaxsize',
 615                         'section' => 'rendering/files',
 616                 );
 617                 $defaultPreferences['thumbsize'] = array(
 618                         'type' => 'select',
 619                         'options' => self::getThumbSizes( $context ),
 620                         'label-message' => 'thumbsize',
 621                         'section' => 'rendering/files',
 622                 );
 623         }
 624
 625         /**
 626          * @param User $user
 627          * @param IContextSource $context
 628          * @param array $defaultPreferences
 629          * @return void
 630          */
 631         static function datetimePreferences( $user, IContextSource $context, &$defaultPreferences ) {
 632                 ## Date and time #####################################
 633                 $dateOptions = self::getDateOptions( $context );
 634                 if ( $dateOptions ) {
 635                         $defaultPreferences['date'] = array(
 636                                 'type' => 'radio',
 637                                 'options' => $dateOptions,
 638                                 'label' => '&#160;',
 639                                 'section' => 'rendering/dateformat',
 640                         );
 641                 }
 642
 643                 // Info
 644                 $now = wfTimestampNow();
 645                 $lang = $context->getLanguage();
 646                 $nowlocal = Xml::element( 'span', array( 'id' => 'wpLocalTime' ),
 647                         $lang->time( $now, true ) );
 648                 $nowserver = $lang->time( $now, false ) .
 649                         Html::hidden( 'wpServerTime', (int)substr( $now, 8, 2 ) * 60 + (int)substr( $now, 10, 2 ) );
 650
 651                 $defaultPreferences['nowserver'] = array(
 652                         'type' => 'info',
 653                         'raw' => 1,
 654                         'label-message' => 'servertime',
 655                         'default' => $nowserver,
 656                         'section' => 'rendering/timeoffset',
 657                 );
 658
 659                 $defaultPreferences['nowlocal'] = array(
 660                         'type' => 'info',
 661                         'raw' => 1,
 662                         'label-message' => 'localtime',
 663                         'default' => $nowlocal,
 664                         'section' => 'rendering/timeoffset',
 665                 );
 666
 667                 // Grab existing pref.
 668                 $tzOffset = $user->getOption( 'timecorrection' );
 669                 $tz = explode( '|', $tzOffset, 3 );
 670
 671                 $tzOptions = self::getTimezoneOptions( $context );
 672
 673                 $tzSetting = $tzOffset;
 674                 if ( count( $tz ) > 1 && $tz[0] == 'Offset' ) {
 675                         $minDiff = $tz[1];
 676                         $tzSetting = sprintf( '%+03d:%02d', floor( $minDiff / 60 ), abs( $minDiff ) % 60 );
 677                 } elseif ( count( $tz ) > 1 && $tz[0] == 'ZoneInfo' &&
 678                         !in_array( $tzOffset, HTMLFormField::flattenOptions( $tzOptions ) )
 679                 ) {
 680                         # Timezone offset can vary with DST
 681                         $userTZ = timezone_open( $tz[2] );
 682                         if ( $userTZ !== false ) {
 683                                 $minDiff = floor( timezone_offset_get( $userTZ, date_create( 'now' ) ) / 60 );
 684                                 $tzSetting = "ZoneInfo|$minDiff|{$tz[2]}";
 685                         }
 686                 }
 687
 688                 $defaultPreferences['timecorrection'] = array(
 689                         'class' => 'HTMLSelectOrOtherField',
 690                         'label-message' => 'timezonelegend',
 691                         'options' => $tzOptions,
 692                         'default' => $tzSetting,
 693                         'size' => 20,
 694                         'section' => 'rendering/timeoffset',
 695                 );
 696         }
 697
 698         /**
 699          * @param User $user
 700          * @param IContextSource $context
 701          * @param array $defaultPreferences
 702          */
 703         static function renderingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 704                 ## Diffs ####################################
 705                 $defaultPreferences['diffonly'] = array(
 706                         'type' => 'toggle',
 707                         'section' => 'rendering/diffs',
 708                         'label-message' => 'tog-diffonly',
 709                 );
 710                 $defaultPreferences['norollbackdiff'] = array(
 711                         'type' => 'toggle',
 712                         'section' => 'rendering/diffs',
 713                         'label-message' => 'tog-norollbackdiff',
 714                 );
 715
 716                 ## Page Rendering ##############################
 717                 global $wgAllowUserCssPrefs;
 718                 if ( $wgAllowUserCssPrefs ) {
 719                         $defaultPreferences['underline'] = array(
 720                                 'type' => 'select',
 721                                 'options' => array(
 722                                         $context->msg( 'underline-never' )->text() => 0,
 723                                         $context->msg( 'underline-always' )->text() => 1,
 724                                         $context->msg( 'underline-default' )->text() => 2,
 725                                 ),
 726                                 'label-message' => 'tog-underline',
 727                                 'section' => 'rendering/advancedrendering',
 728                         );
 729                 }
 730
 731                 $stubThresholdValues = array( 50, 100, 500, 1000, 2000, 5000, 10000 );
 732                 $stubThresholdOptions = array( $context->msg( 'stub-threshold-disabled' )->text() => 0 );
 733                 foreach ( $stubThresholdValues as $value ) {
 734                         $stubThresholdOptions[$context->msg( 'size-bytes', $value )->text()] = $value;
 735                 }
 736
 737                 $defaultPreferences['stubthreshold'] = array(
 738                         'type' => 'select',
 739                         'section' => 'rendering/advancedrendering',
 740                         'options' => $stubThresholdOptions,
 741                         'size' => 20,
 742                         'label-raw' => $context->msg( 'stub-threshold' )->text(), // Raw HTML message. Yay?
 743                 );
 744
 745                 $defaultPreferences['showhiddencats'] = array(
 746                         'type' => 'toggle',
 747                         'section' => 'rendering/advancedrendering',
 748                         'label-message' => 'tog-showhiddencats'
 749                 );
 750
 751                 $defaultPreferences['numberheadings'] = array(
 752                         'type' => 'toggle',
 753                         'section' => 'rendering/advancedrendering',
 754                         'label-message' => 'tog-numberheadings',
 755                 );
 756         }
 757
 758         /**
 759          * @param User $user
 760          * @param IContextSource $context
 761          * @param array $defaultPreferences
 762          */
 763         static function editingPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 764                 global $wgAllowUserCssPrefs;
 765
 766                 ## Editing #####################################
 767                 $defaultPreferences['editsectiononrightclick'] = array(
 768                         'type' => 'toggle',
 769                         'section' => 'editing/advancedediting',
 770                         'label-message' => 'tog-editsectiononrightclick',
 771                 );
 772                 $defaultPreferences['editondblclick'] = array(
 773                         'type' => 'toggle',
 774                         'section' => 'editing/advancedediting',
 775                         'label-message' => 'tog-editondblclick',
 776                 );
 777
 778                 if ( $wgAllowUserCssPrefs ) {
 779                         $defaultPreferences['editfont'] = array(
 780                                 'type' => 'select',
 781                                 'section' => 'editing/editor',
 782                                 'label-message' => 'editfont-style',
 783                                 'options' => array(
 784                                         $context->msg( 'editfont-default' )->text() => 'default',
 785                                         $context->msg( 'editfont-monospace' )->text() => 'monospace',
 786                                         $context->msg( 'editfont-sansserif' )->text() => 'sans-serif',
 787                                         $context->msg( 'editfont-serif' )->text() => 'serif',
 788                                 )
 789                         );
 790                 }
 791                 $defaultPreferences['cols'] = array(
 792                         'type' => 'int',
 793                         'label-message' => 'columns',
 794                         'section' => 'editing/editor',
 795                         'min' => 4,
 796                         'max' => 1000,
 797                 );
 798                 $defaultPreferences['rows'] = array(
 799                         'type' => 'int',
 800                         'label-message' => 'rows',
 801                         'section' => 'editing/editor',
 802                         'min' => 4,
 803                         'max' => 1000,
 804                 );
 805                 if ( $user->isAllowed( 'minoredit' ) ) {
 806                         $defaultPreferences['minordefault'] = array(
 807                                 'type' => 'toggle',
 808                                 'section' => 'editing/editor',
 809                                 'label-message' => 'tog-minordefault',
 810                         );
 811                 }
 812                 $defaultPreferences['forceeditsummary'] = array(
 813                         'type' => 'toggle',
 814                         'section' => 'editing/editor',
 815                         'label-message' => 'tog-forceeditsummary',
 816                 );
 817                 $defaultPreferences['useeditwarning'] = array(
 818                         'type' => 'toggle',
 819                         'section' => 'editing/editor',
 820                         'label-message' => 'tog-useeditwarning',
 821                 );
 822                 $defaultPreferences['showtoolbar'] = array(
 823                         'type' => 'toggle',
 824                         'section' => 'editing/editor',
 825                         'label-message' => 'tog-showtoolbar',
 826                 );
 827
 828                 $defaultPreferences['previewonfirst'] = array(
 829                         'type' => 'toggle',
 830                         'section' => 'editing/preview',
 831                         'label-message' => 'tog-previewonfirst',
 832                 );
 833                 $defaultPreferences['previewontop'] = array(
 834                         'type' => 'toggle',
 835                         'section' => 'editing/preview',
 836                         'label-message' => 'tog-previewontop',
 837                 );
 838                 $defaultPreferences['uselivepreview'] = array(
 839                         'type' => 'toggle',
 840                         'section' => 'editing/preview',
 841                         'label-message' => 'tog-uselivepreview',
 842                 );
 843
 844         }
 845
 846         /**
 847          * @param User $user
 848          * @param IContextSource $context
 849          * @param array $defaultPreferences
 850          */
 851         static function rcPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 852                 global $wgRCMaxAge, $wgRCShowWatchingUsers;
 853
 854                 ## RecentChanges #####################################
 855                 $defaultPreferences['rcdays'] = array(
 856                         'type' => 'float',
 857                         'label-message' => 'recentchangesdays',
 858                         'section' => 'rc/displayrc',
 859                         'min' => 1,
 860                         'max' => ceil( $wgRCMaxAge / ( 3600 * 24 ) ),
 861                         'help' => $context->msg( 'recentchangesdays-max' )->numParams(
 862                                 ceil( $wgRCMaxAge / ( 3600 * 24 ) ) )->text()
 863                 );
 864                 $defaultPreferences['rclimit'] = array(
 865                         'type' => 'int',
 866                         'label-message' => 'recentchangescount',
 867                         'help-message' => 'prefs-help-recentchangescount',
 868                         'section' => 'rc/displayrc',
 869                 );
 870                 $defaultPreferences['usenewrc'] = array(
 871                         'type' => 'toggle',
 872                         'label-message' => 'tog-usenewrc',
 873                         'section' => 'rc/advancedrc',
 874                 );
 875                 $defaultPreferences['hideminor'] = array(
 876                         'type' => 'toggle',
 877                         'label-message' => 'tog-hideminor',
 878                         'section' => 'rc/advancedrc',
 879                 );
 880
 881                 if ( $user->useRCPatrol() ) {
 882                         $defaultPreferences['hidepatrolled'] = array(
 883                                 'type' => 'toggle',
 884                                 'section' => 'rc/advancedrc',
 885                                 'label-message' => 'tog-hidepatrolled',
 886                         );
 887                         $defaultPreferences['newpageshidepatrolled'] = array(
 888                                 'type' => 'toggle',
 889                                 'section' => 'rc/advancedrc',
 890                                 'label-message' => 'tog-newpageshidepatrolled',
 891                         );
 892                 }
 893
 894                 if ( $wgRCShowWatchingUsers ) {
 895                         $defaultPreferences['shownumberswatching'] = array(
 896                                 'type' => 'toggle',
 897                                 'section' => 'rc/advancedrc',
 898                                 'label-message' => 'tog-shownumberswatching',
 899                         );
 900                 }
 901         }
 902
 903         /**
 904          * @param User $user
 905          * @param IContextSource $context
 906          * @param array $defaultPreferences
 907          */
 908         static function watchlistPreferences( $user, IContextSource $context, &$defaultPreferences ) {
 909                 global $wgUseRCPatrol, $wgEnableAPI, $wgRCMaxAge;
 910
 911                 $watchlistdaysMax = ceil( $wgRCMaxAge / ( 3600 * 24 ) );
 912
 913                 ## Watchlist #####################################
 914                 $defaultPreferences['watchlistdays'] = array(
 915                         'type' => 'float',
 916                         'min' => 0,
 917                         'max' => $watchlistdaysMax,
 918                         'section' => 'watchlist/displaywatchlist',
 919                         'help' => $context->msg( 'prefs-watchlist-days-max' )->numParams(
 920                                 $watchlistdaysMax )->text(),
 921                         'label-message' => 'prefs-watchlist-days',
 922                 );
 923                 $defaultPreferences['wllimit'] = array(
 924                         'type' => 'int',
 925                         'min' => 0,
 926                         'max' => 1000,
 927                         'label-message' => 'prefs-watchlist-edits',
 928                         'help' => $context->msg( 'prefs-watchlist-edits-max' )->escaped(),
 929                         'section' => 'watchlist/displaywatchlist',
 930                 );
 931                 $defaultPreferences['extendwatchlist'] = array(
 932                         'type' => 'toggle',
 933                         'section' => 'watchlist/advancedwatchlist',
 934                         'label-message' => 'tog-extendwatchlist',
 935                 );
 936                 $defaultPreferences['watchlisthideminor'] = array(
 937                         'type' => 'toggle',
 938                         'section' => 'watchlist/advancedwatchlist',
 939                         'label-message' => 'tog-watchlisthideminor',
 940                 );
 941                 $defaultPreferences['watchlisthidebots'] = array(
 942                         'type' => 'toggle',
 943                         'section' => 'watchlist/advancedwatchlist',
 944                         'label-message' => 'tog-watchlisthidebots',
 945                 );
 946                 $defaultPreferences['watchlisthideown'] = array(
 947                         'type' => 'toggle',
 948                         'section' => 'watchlist/advancedwatchlist',
 949                         'label-message' => 'tog-watchlisthideown',
 950                 );
 951                 $defaultPreferences['watchlisthideanons'] = array(
 952                         'type' => 'toggle',
 953                         'section' => 'watchlist/advancedwatchlist',
 954                         'label-message' => 'tog-watchlisthideanons',
 955                 );
 956                 $defaultPreferences['watchlisthideliu'] = array(
 957                         'type' => 'toggle',
 958                         'section' => 'watchlist/advancedwatchlist',
 959                         'label-message' => 'tog-watchlisthideliu',
 960                 );
 961
 962                 if ( $wgUseRCPatrol ) {
 963                         $defaultPreferences['watchlisthidepatrolled'] = array(
 964                                 'type' => 'toggle',
 965                                 'section' => 'watchlist/advancedwatchlist',
 966                                 'label-message' => 'tog-watchlisthidepatrolled',
 967                         );
 968                 }
 969
 970                 $watchTypes = array(
 971                         'edit' => 'watchdefault',
 972                         'move' => 'watchmoves',
 973                         'delete' => 'watchdeletion'
 974                 );
 975
 976                 // Kinda hacky
 977                 if ( $user->isAllowed( 'createpage' ) || $user->isAllowed( 'createtalk' ) ) {
 978                         $watchTypes['read'] = 'watchcreations';
 979                 }
 980
 981                 foreach ( $watchTypes as $action => $pref ) {
 982                         if ( $user->isAllowed( $action ) ) {
 983                                 // Messages:
 984                                 // tog-watchdefault, tog-watchmoves, tog-watchdeletion, tog-watchcreations
 985                                 $defaultPreferences[$pref] = array(
 986                                         'type' => 'toggle',
 987                                         'section' => 'watchlist/advancedwatchlist',
 988                                         'label-message' => "tog-$pref",
 989                                 );
 990                         }
 991                 }
 992
 993                 if ( $wgEnableAPI ) {
 994                         $defaultPreferences['watchlisttoken'] = array(
 995                                 'type' => 'api',
 996                         );
 997                         $defaultPreferences['watchlisttoken-info'] = array(
 998                                 'type' => 'info',
 999                                 'section' => 'watchlist/tokenwatchlist',
1000                                 'label-message' => 'prefs-watchlist-token',
1001                                 'default' => $user->getTokenFromOption( 'watchlisttoken' ),
1002                                 'help-message' => 'prefs-help-watchlist-token2',
1003                         );
1004                 }
1005         }
1006
1007         /**
1008          * @param User $user
1009          * @param IContextSource $context
1010          * @param array $defaultPreferences
1011          */
1012         static function searchPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1013                 foreach ( MWNamespace::getValidNamespaces() as $n ) {
1014                         $defaultPreferences[ 'searchNs' . $n ] = array(
1015                                 'type' => 'api',
1016                         );
1017                 }
1018         }
1019
1020         /**
1021          * Dummy, kept for backwards-compatibility.
1022          */
1023         static function miscPreferences( $user, IContextSource $context, &$defaultPreferences ) {
1024         }
1025
1026         /**
1027          * @param User $user The User object
1028          * @param IContextSource $context
1029          * @return array Text/links to display as key; $skinkey as value
1030          */
1031         static function generateSkinOptions( $user, IContextSource $context ) {
1032                 global $wgDefaultSkin, $wgAllowUserCss, $wgAllowUserJs;
1033                 $ret = array();
1034
1035                 $mptitle = Title::newMainPage();
1036                 $previewtext = $context->msg( 'skin-preview' )->text();
1037
1038                 # Only show skins that aren't disabled in $wgSkipSkins
1039                 $validSkinNames = Skin::getAllowedSkins();
1040
1041                 # Sort by UI skin name. First though need to update validSkinNames as sometimes
1042                 # the skinkey & UI skinname differ (e.g. "standard" skinkey is "Classic" in the UI).
1043                 foreach ( $validSkinNames as $skinkey => &$skinname ) {
1044                         $msg = $context->msg( "skinname-{$skinkey}" );
1045                         if ( $msg->exists() ) {
1046                                 $skinname = htmlspecialchars( $msg->text() );
1047                         }
1048                 }
1049                 asort( $validSkinNames );
1050
1051                 foreach ( $validSkinNames as $skinkey => $sn ) {
1052                         $linkTools = array();
1053
1054                         # Mark the default skin
1055                         if ( $skinkey == $wgDefaultSkin ) {
1056                                 $linkTools[] = $context->msg( 'default' )->escaped();
1057                         }
1058
1059                         # Create preview link
1060                         $mplink = htmlspecialchars( $mptitle->getLocalURL( array( 'useskin' => $skinkey ) ) );
1061                         $linkTools[] = "<a target='_blank' href=\"$mplink\">$previewtext</a>";
1062
1063                         # Create links to user CSS/JS pages
1064                         if ( $wgAllowUserCss ) {
1065                                 $cssPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.css' );
1066                                 $linkTools[] = Linker::link( $cssPage, $context->msg( 'prefs-custom-css' )->escaped() );
1067                         }
1068
1069                         if ( $wgAllowUserJs ) {
1070                                 $jsPage = Title::makeTitleSafe( NS_USER, $user->getName() . '/' . $skinkey . '.js' );
1071                                 $linkTools[] = Linker::link( $jsPage, $context->msg( 'prefs-custom-js' )->escaped() );
1072                         }
1073
1074                         $display = $sn . ' ' . $context->msg(
1075                                 'parentheses',
1076                                 $context->getLanguage()->pipeList( $linkTools )
1077                         )->text();
1078                         $ret[$display] = $skinkey;
1079                 }
1080
1081                 return $ret;
1082         }
1083
1084         /**
1085          * @param IContextSource $context
1086          * @return array
1087          */
1088         static function getDateOptions( IContextSource $context ) {
1089                 $lang = $context->getLanguage();
1090                 $dateopts = $lang->getDatePreferences();
1091
1092                 $ret = array();
1093
1094                 if ( $dateopts ) {
1095                         if ( !in_array( 'default', $dateopts ) ) {
1096                                 $dateopts[] = 'default'; // Make sure default is always valid
1097                                                                                 // Bug 19237
1098                         }
1099
1100                         // KLUGE: site default might not be valid for user language
1101                         global $wgDefaultUserOptions;
1102                         if ( !in_array( $wgDefaultUserOptions['date'], $dateopts ) ) {
1103                                 $wgDefaultUserOptions['date'] = 'default';
1104                         }
1105
1106                         $epoch = wfTimestampNow();
1107                         foreach ( $dateopts as $key ) {
1108                                 if ( $key == 'default' ) {
1109                                         $formatted = $context->msg( 'datedefault' )->escaped();
1110                                 } else {
1111                                         $formatted = htmlspecialchars( $lang->timeanddate( $epoch, false, $key ) );
1112                                 }
1113                                 $ret[$formatted] = $key;
1114                         }
1115                 }
1116                 return $ret;
1117         }
1118
1119         /**
1120          * @param IContextSource $context
1121          * @return array
1122          */
1123         static function getImageSizes( IContextSource $context ) {
1124                 global $wgImageLimits;
1125
1126                 $ret = array();
1127                 $pixels = $context->msg( 'unit-pixel' )->text();
1128
1129                 foreach ( $wgImageLimits as $index => $limits ) {
1130                         $display = "{$limits[0]}×{$limits[1]}" . $pixels;
1131                         $ret[$display] = $index;
1132                 }
1133
1134                 return $ret;
1135         }
1136
1137         /**
1138          * @param IContextSource $context
1139          * @return array
1140          */
1141         static function getThumbSizes( IContextSource $context ) {
1142                 global $wgThumbLimits;
1143
1144                 $ret = array();
1145                 $pixels = $context->msg( 'unit-pixel' )->text();
1146
1147                 foreach ( $wgThumbLimits as $index => $size ) {
1148                         $display = $size . $pixels;
1149                         $ret[$display] = $index;
1150                 }
1151
1152                 return $ret;
1153         }
1154
1155         /**
1156          * @param string $signature
1157          * @param array $alldata
1158          * @param HTMLForm $form
1159          * @return bool|string
1160          */
1161         static function validateSignature( $signature, $alldata, $form ) {
1162                 global $wgParser, $wgMaxSigChars;
1163                 if ( mb_strlen( $signature ) > $wgMaxSigChars ) {
1164                         return Xml::element( 'span', array( 'class' => 'error' ),
1165                                 $form->msg( 'badsiglength' )->numParams( $wgMaxSigChars )->text() );
1166                 } elseif ( isset( $alldata['fancysig'] ) &&
1167                                 $alldata['fancysig'] &&
1168                                 $wgParser->validateSig( $signature ) === false
1169                 ) {
1170                         return Xml::element(
1171                                 'span',
1172                                 array( 'class' => 'error' ),
1173                                 $form->msg( 'badsig' )->text()
1174                         );
1175                 } else {
1176                         return true;
1177                 }
1178         }
1179
1180         /**
1181          * @param string $signature
1182          * @param array $alldata
1183          * @param HTMLForm $form
1184          * @return string
1185          */
1186         static function cleanSignature( $signature, $alldata, $form ) {
1187                 if ( isset( $alldata['fancysig'] ) && $alldata['fancysig'] ) {
1188                         global $wgParser;
1189                         $signature = $wgParser->cleanSig( $signature );
1190                 } else {
1191                         // When no fancy sig used, make sure ~{3,5} get removed.
1192                         $signature = Parser::cleanSigInSig( $signature );
1193                 }
1194
1195                 return $signature;
1196         }
1197
1198         /**
1199          * @param User $user
1200          * @param IContextSource $context
1201          * @param string $formClass
1202          * @param array $remove Array of items to remove
1203          * @return HtmlForm
1204          */
1205         static function getFormObject(
1206                 $user,
1207                 IContextSource $context,
1208                 $formClass = 'PreferencesForm',
1209                 array $remove = array()
1210         ) {
1211                 $formDescriptor = Preferences::getPreferences( $user, $context );
1212                 if ( count( $remove ) ) {
1213                         $removeKeys = array_flip( $remove );
1214                         $formDescriptor = array_diff_key( $formDescriptor, $removeKeys );
1215                 }
1216
1217                 // Remove type=api preferences. They are not intended for rendering in the form.
1218                 foreach ( $formDescriptor as $name => $info ) {
1219                         if ( isset( $info['type'] ) && $info['type'] === 'api' ) {
1220                                 unset( $formDescriptor[$name] );
1221                         }
1222                 }
1223
1224                 /**
1225                  * @var $htmlForm PreferencesForm
1226                  */
1227                 $htmlForm = new $formClass( $formDescriptor, $context, 'prefs' );
1228
1229                 $htmlForm->setModifiedUser( $user );
1230                 $htmlForm->setId( 'mw-prefs-form' );
1231                 $htmlForm->setSubmitText( $context->msg( 'saveprefs' )->text() );
1232                 # Used message keys: 'accesskey-preferences-save', 'tooltip-preferences-save'
1233                 $htmlForm->setSubmitTooltip( 'preferences-save' );
1234                 $htmlForm->setSubmitID( 'prefsubmit' );
1235                 $htmlForm->setSubmitCallback( array( 'Preferences', 'tryFormSubmit' ) );
1236
1237                 return $htmlForm;
1238         }
1239
1240         /**
1241          * @param IContextSource $context
1242          * @return array
1243          */
1244         static function getTimezoneOptions( IContextSource $context ) {
1245                 $opt = array();
1246
1247                 global $wgLocalTZoffset;
1248                 $timestamp = MWTimestamp::getLocalInstance();
1249                 // Check that $wgLocalTZoffset is the same as the local time zone offset
1250                 if ( $wgLocalTZoffset == $timestamp->format( 'Z' ) / 60 ) {
1251                         $server_tz_msg = $context->msg(
1252                                 'timezoneuseserverdefault',
1253                                 $timestamp->getTimezone()->getName()
1254                         )->text();
1255                 } else {
1256                         $tzstring = sprintf(
1257                                 '%+03d:%02d',
1258                                 floor( $wgLocalTZoffset / 60 ),
1259                                 abs( $wgLocalTZoffset ) % 60
1260                         );
1261                         $server_tz_msg = $context->msg( 'timezoneuseserverdefault', $tzstring )->text();
1262                 }
1263                 $opt[$server_tz_msg] = "System|$wgLocalTZoffset";
1264                 $opt[$context->msg( 'timezoneuseoffset' )->text()] = 'other';
1265                 $opt[$context->msg( 'guesstimezone' )->text()] = 'guess';
1266
1267                 if ( function_exists( 'timezone_identifiers_list' ) ) {
1268                         # Read timezone list
1269                         $tzs = timezone_identifiers_list();
1270                         sort( $tzs );
1271
1272                         $tzRegions = array();
1273                         $tzRegions['Africa'] = $context->msg( 'timezoneregion-africa' )->text();
1274                         $tzRegions['America'] = $context->msg( 'timezoneregion-america' )->text();
1275                         $tzRegions['Antarctica'] = $context->msg( 'timezoneregion-antarctica' )->text();
1276                         $tzRegions['Arctic'] = $context->msg( 'timezoneregion-arctic' )->text();
1277                         $tzRegions['Asia'] = $context->msg( 'timezoneregion-asia' )->text();
1278                         $tzRegions['Atlantic'] = $context->msg( 'timezoneregion-atlantic' )->text();
1279                         $tzRegions['Australia'] = $context->msg( 'timezoneregion-australia' )->text();
1280                         $tzRegions['Europe'] = $context->msg( 'timezoneregion-europe' )->text();
1281                         $tzRegions['Indian'] = $context->msg( 'timezoneregion-indian' )->text();
1282                         $tzRegions['Pacific'] = $context->msg( 'timezoneregion-pacific' )->text();
1283                         asort( $tzRegions );
1284
1285                         $prefill = array_fill_keys( array_values( $tzRegions ), array() );
1286                         $opt = array_merge( $opt, $prefill );
1287
1288                         $now = date_create( 'now' );
1289
1290                         foreach ( $tzs as $tz ) {
1291                                 $z = explode( '/', $tz, 2 );
1292
1293                                 # timezone_identifiers_list() returns a number of
1294                                 # backwards-compatibility entries. This filters them out of the
1295                                 # list presented to the user.
1296                                 if ( count( $z ) != 2 || !array_key_exists( $z[0], $tzRegions ) ) {
1297                                         continue;
1298                                 }
1299
1300                                 # Localize region
1301                                 $z[0] = $tzRegions[$z[0]];
1302
1303                                 $minDiff = floor( timezone_offset_get( timezone_open( $tz ), $now ) / 60 );
1304
1305                                 $display = str_replace( '_', ' ', $z[0] . '/' . $z[1] );
1306                                 $value = "ZoneInfo|$minDiff|$tz";
1307
1308                                 $opt[$z[0]][$display] = $value;
1309                         }
1310                 }
1311                 return $opt;
1312         }
1313
1314         /**
1315          * @param string $value
1316          * @param array $alldata
1317          * @return int
1318          */
1319         static function filterIntval( $value, $alldata ) {
1320                 return intval( $value );
1321         }
1322
1323         /**
1324          * @param string $tz
1325          * @param array $alldata
1326          * @return string
1327          */
1328         static function filterTimezoneInput( $tz, $alldata ) {
1329                 $data = explode( '|', $tz, 3 );
1330                 switch ( $data[0] ) {
1331                         case 'ZoneInfo':
1332                         case 'System':
1333                                 return $tz;
1334                         default:
1335                                 $data = explode( ':', $tz, 2 );
1336                                 if ( count( $data ) == 2 ) {
1337                                         $data[0] = intval( $data[0] );
1338                                         $data[1] = intval( $data[1] );
1339                                         $minDiff = abs( $data[0] ) * 60 + $data[1];
1340                                         if ( $data[0] < 0 ) {
1341                                                 $minDiff = - $minDiff;
1342                                         }
1343                                 } else {
1344                                         $minDiff = intval( $data[0] ) * 60;
1345                                 }
1346
1347                                 # Max is +14:00 and min is -12:00, see:
1348                                 # http://en.wikipedia.org/wiki/Timezone
1349                                 $minDiff = min( $minDiff, 840 );  # 14:00
1350                                 $minDiff = max( $minDiff, - 720 ); # -12:00
1351                                 return 'Offset|' . $minDiff;
1352                 }
1353         }
1354
1355         /**
1356          * Handle the form submission if everything validated properly
1357          *
1358          * @param array $formData
1359          * @param PreferencesForm $form
1360          * @return bool|Status|string
1361          */
1362         static function tryFormSubmit( $formData, $form ) {
1363                 global $wgHiddenPrefs, $wgAuth;
1364
1365                 $user = $form->getModifiedUser();
1366                 $result = true;
1367
1368                 if ( !$user->isAllowedAny( 'editmyprivateinfo', 'editmyoptions' ) ) {
1369                         return Status::newFatal( 'mypreferencesprotected' );
1370                 }
1371
1372                 // Filter input
1373                 foreach ( array_keys( $formData ) as $name ) {
1374                         if ( isset( self::$saveFilters[$name] ) ) {
1375                                 $formData[$name] =
1376                                         call_user_func( self::$saveFilters[$name], $formData[$name], $formData );
1377                         }
1378                 }
1379
1380                 // Fortunately, the realname field is MUCH simpler
1381                 // (not really "private", but still shouldn't be edited without permission)
1382                 if ( !in_array( 'realname', $wgHiddenPrefs )
1383                         && $user->isAllowed( 'editmyprivateinfo' )
1384                         && array_key_exists( 'realname', $formData )
1385                 ) {
1386                         $realName = $formData['realname'];
1387                         $user->setRealName( $realName );
1388                 }
1389
1390                 if ( $user->isAllowed( 'editmyoptions' ) ) {
1391                         foreach ( self::$saveBlacklist as $b ) {
1392                                 unset( $formData[$b] );
1393                         }
1394
1395                         # If users have saved a value for a preference which has subsequently been disabled
1396                         # via $wgHiddenPrefs, we don't want to destroy that setting in case the preference
1397                         # is subsequently re-enabled
1398                         foreach ( $wgHiddenPrefs as $pref ) {
1399                                 # If the user has not set a non-default value here, the default will be returned
1400                                 # and subsequently discarded
1401                                 $formData[$pref] = $user->getOption( $pref, null, true );
1402                         }
1403
1404                         // Keep old preferences from interfering due to back-compat code, etc.
1405                         $user->resetOptions( 'unused', $form->getContext() );
1406
1407                         foreach ( $formData as $key => $value ) {
1408                                 $user->setOption( $key, $value );
1409                         }
1410
1411                         wfRunHooks( 'PreferencesFormPreSave', array( $formData, $form, $user, &$result ) );
1412                         $user->saveSettings();
1413                 }
1414
1415                 $wgAuth->updateExternalDB( $user );
1416
1417                 return $result;
1418         }
1419
1420         /**
1421          * @param array $formData
1422          * @param PreferencesForm $form
1423          * @return Status
1424          */
1425         public static function tryUISubmit( $formData, $form ) {
1426                 $res = self::tryFormSubmit( $formData, $form );
1427
1428                 if ( $res ) {
1429                         $urlOptions = array( 'success' => 1 );
1430
1431                         if ( $res === 'eauth' ) {
1432                                 $urlOptions['eauth'] = 1;
1433                         }
1434
1435                         $urlOptions += $form->getExtraSuccessRedirectParameters();
1436
1437                         $url = $form->getTitle()->getFullURL( $urlOptions );
1438
1439                         $form->getContext()->getOutput()->redirect( $url );
1440                 }
1441
1442                 return Status::newGood();
1443         }
1444
1445         /**
1446          * Try to set a user's email address.
1447          * This does *not* try to validate the address.
1448          * Caller is responsible for checking $wgAuth and 'editmyprivateinfo'
1449          * right.
1450          *
1451          * @deprecated since 1.20; use User::setEmailWithConfirmation() instead.
1452          * @param User $user
1453          * @param string $newaddr New email address
1454          * @return array (true on success or Status on failure, info string)
1455          */
1456         public static function trySetUserEmail( User $user, $newaddr ) {
1457                 wfDeprecated( __METHOD__, '1.20' );
1458
1459                 $result = $user->setEmailWithConfirmation( $newaddr );
1460                 if ( $result->isGood() ) {
1461                         return array( true, $result->value );
1462                 } else {
1463                         return array( $result, 'mailerror' );
1464                 }
1465         }
1466
1467         /**
1468          * @deprecated since 1.19
1469          * @param User $user
1470          * @return array
1471          */
1472         public static function loadOldSearchNs( $user ) {
1473                 wfDeprecated( __METHOD__, '1.19' );
1474
1475                 $searchableNamespaces = SearchEngine::searchableNamespaces();
1476                 // Back compat with old format
1477                 $arr = array();
1478
1479                 foreach ( $searchableNamespaces as $ns => $name ) {
1480                         if ( $user->getOption( 'searchNs' . $ns ) ) {
1481                                 $arr[] = $ns;
1482                         }
1483                 }
1484
1485                 return $arr;
1486         }
1487 }
1488
1489 /** Some tweaks to allow js prefs to work */
1490 class PreferencesForm extends HTMLForm {
1491         // Override default value from HTMLForm
1492         protected $mSubSectionBeforeFields = false;
1493
1494         private $modifiedUser;
1495
1496         /**
1497          * @param User $user
1498          */
1499         public function setModifiedUser( $user ) {
1500                 $this->modifiedUser = $user;
1501         }
1502
1503         /**
1504          * @return User
1505          */
1506         public function getModifiedUser() {
1507                 if ( $this->modifiedUser === null ) {
1508                         return $this->getUser();
1509                 } else {
1510                         return $this->modifiedUser;
1511                 }
1512         }
1513
1514         /**
1515          * Get extra parameters for the query string when redirecting after
1516          * successful save.
1517          *
1518          * @return array()
1519          */
1520         public function getExtraSuccessRedirectParameters() {
1521                 return array();
1522         }
1523
1524         /**
1525          * @param string $html
1526          * @return string
1527          */
1528         function wrapForm( $html ) {
1529                 $html = Xml::tags( 'div', array( 'id' => 'preferences' ), $html );
1530
1531                 return parent::wrapForm( $html );
1532         }
1533
1534         /**
1535          * @return string
1536          */
1537         function getButtons() {
1538                 if ( !$this->getModifiedUser()->isAllowedAny( 'editmyprivateinfo', 'editmyoptions' ) ) {
1539                         return '';
1540                 }
1541
1542                 $html = parent::getButtons();
1543
1544                 if ( $this->getModifiedUser()->isAllowed( 'editmyoptions' ) ) {
1545                         $t = SpecialPage::getTitleFor( 'Preferences', 'reset' );
1546
1547                         $html .= "\n" . Linker::link( $t, $this->msg( 'restoreprefs' )->escaped() );
1548
1549                         $html = Xml::tags( 'div', array( 'class' => 'mw-prefs-buttons' ), $html );
1550                 }
1551
1552                 return $html;
1553         }
1554
1555         /**
1556          * Separate multi-option preferences into multiple preferences, since we
1557          * have to store them separately
1558          * @param array $data
1559          * @return array
1560          */
1561         function filterDataForSubmit( $data ) {
1562                 foreach ( $this->mFlatFields as $fieldname => $field ) {
1563                         if ( $field instanceof HTMLNestedFilterable ) {
1564                                 $info = $field->mParams;
1565                                 $prefix = isset( $info['prefix'] ) ? $info['prefix'] : $fieldname;
1566                                 foreach ( $field->filterDataForSubmit( $data[$fieldname] ) as $key => $value ) {
1567                                         $data["$prefix$key"] = $value;
1568                                 }
1569                                 unset( $data[$fieldname] );
1570                         }
1571                 }
1572
1573                 return $data;
1574         }
1575
1576         /**
1577          * Get the whole body of the form.
1578          * @return string
1579          */
1580         function getBody() {
1581                 return $this->displaySection( $this->mFieldTree, '', 'mw-prefsection-' );
1582         }
1583
1584         /**
1585          * Get the "<legend>" for a given section key. Normally this is the
1586          * prefs-$key message but we'll allow extensions to override it.
1587          * @param string $key
1588          * @return string
1589          */
1590         function getLegend( $key ) {
1591                 $legend = parent::getLegend( $key );
1592                 wfRunHooks( 'PreferencesGetLegend', array( $this, $key, &$legend ) );
1593                 return $legend;
1594         }
1595 }