includes/specials/SpecialUserrights.php

   1 <?php
   2 /**
   3  * Special page to allow managing user group membership
   4  *
   5  * @file
   6  * @ingroup SpecialPage
   7  */
   8
   9 /**
  10  * A class to manage user levels rights.
  11  * @ingroup SpecialPage
  12  */
  13 class UserrightsPage extends SpecialPage {
  14         # The target of the local right-adjuster's interest.  Can be gotten from
  15         # either a GET parameter or a subpage-style parameter, so have a member
  16         # variable for it.
  17         protected $mTarget;
  18         protected $isself = false;
  19
  20         public function __construct() {
  21                 parent::__construct( 'Userrights' );
  22         }
  23
  24         public function isRestricted() {
  25                 return true;
  26         }
  27
  28         public function userCanExecute( $user ) {
  29                 return $this->userCanChangeRights( $user, false );
  30         }
  31
  32         public function userCanChangeRights( $user, $checkIfSelf = true ) {
  33                 $available = $this->changeableGroups();
  34                 return !empty( $available['add'] )
  35                         or !empty( $available['remove'] )
  36                         or ( ( $this->isself || !$checkIfSelf ) and
  37                                 (!empty( $available['add-self'] )
  38                                  or !empty( $available['remove-self'] )));
  39         }
  40
  41         /**
  42          * Manage forms to be shown according to posted data.
  43          * Depending on the submit button used, call a form or a save function.
  44          *
  45          * @param $par Mixed: string if any subpage provided, else null
  46          */
  47         function execute( $par ) {
  48                 // If the visitor doesn't have permissions to assign or remove
  49                 // any groups, it's a bit silly to give them the user search prompt.
  50                 global $wgUser, $wgRequest;
  51
  52                 if( $par ) {
  53                         $this->mTarget = $par;
  54                 } else {
  55                         $this->mTarget = $wgRequest->getVal( 'user' );
  56                 }
  57
  58                 if (!$this->mTarget) {
  59                         /*
  60                          * If the user specified no target, and they can only
  61                          * edit their own groups, automatically set them as the
  62                          * target.
  63                          */
  64                         $available = $this->changeableGroups();
  65                         if (empty($available['add']) && empty($available['remove']))
  66                                 $this->mTarget = $wgUser->getName();
  67                 }
  68
  69                 if ($this->mTarget == $wgUser->getName())
  70                         $this->isself = true;
  71
  72                 if( !$this->userCanChangeRights( $wgUser, true ) ) {
  73                         // fixme... there may be intermediate groups we can mention.
  74                         global $wgOut;
  75                         $wgOut->showPermissionsErrorPage( array(
  76                                 $wgUser->isAnon()
  77                                         ? 'userrights-nologin'
  78                                         : 'userrights-notallowed' ) );
  79                         return;
  80                 }
  81
  82                 if ( wfReadOnly() ) {
  83                         global $wgOut;
  84                         $wgOut->readOnlyPage();
  85                         return;
  86                 }
  87
  88                 $this->outputHeader();
  89
  90                 $this->setHeaders();
  91
  92                 // show the general form
  93                 $this->switchForm();
  94
  95                 if( $wgRequest->wasPosted() ) {
  96                         // save settings
  97                         if( $wgRequest->getCheck( 'saveusergroups' ) ) {
  98                                 $reason = $wgRequest->getVal( 'user-reason' );
  99                                 $tok = $wgRequest->getVal( 'wpEditToken' );
 100                                 if( $wgUser->matchEditToken( $tok, $this->mTarget ) ) {
 101                                         $this->saveUserGroups(
 102                                                 $this->mTarget,
 103                                                 $reason
 104                                         );
 105
 106                                         global $wgOut;
 107
 108                                         $url = $this->getTitle( $this->mTarget )->getFullURL();
 109                                         $wgOut->redirect( $url );
 110                                         return;
 111                                 }
 112                         }
 113                 }
 114
 115                 // show some more forms
 116                 if( $this->mTarget ) {
 117                         $this->editUserGroupsForm( $this->mTarget );
 118                 }
 119         }
 120
 121         /**
 122          * Save user groups changes in the database.
 123          * Data comes from the editUserGroupsForm() form function
 124          *
 125          * @param $username String: username to apply changes to.
 126          * @param $reason String: reason for group change
 127          * @return null
 128          */
 129         function saveUserGroups( $username, $reason = '') {
 130                 global $wgRequest, $wgUser, $wgGroupsAddToSelf, $wgGroupsRemoveFromSelf;
 131
 132                 $user = $this->fetchUser( $username );
 133                 if( !$user ) {
 134                         return;
 135                 }
 136
 137                 $allgroups = $this->getAllGroups();
 138                 $addgroup = array();
 139                 $removegroup = array();
 140
 141                 // This could possibly create a highly unlikely race condition if permissions are changed between
 142                 //  when the form is loaded and when the form is saved. Ignoring it for the moment.
 143                 foreach ($allgroups as $group) {
 144                         // We'll tell it to remove all unchecked groups, and add all checked groups.
 145                         // Later on, this gets filtered for what can actually be removed
 146                         if ($wgRequest->getCheck( "wpGroup-$group" )) {
 147                                 $addgroup[] = $group;
 148                         } else {
 149                                 $removegroup[] = $group;
 150                         }
 151                 }
 152
 153                 // Validate input set...
 154                 $changeable = $this->changeableGroups();
 155                 $addable = array_merge( $changeable['add'], $this->isself ? $changeable['add-self'] : array() );
 156                 $removable = array_merge( $changeable['remove'], $this->isself ? $changeable['remove-self'] : array() );
 157
 158                 $removegroup = array_unique(
 159                         array_intersect( (array)$removegroup, $removable ) );
 160                 $addgroup = array_unique(
 161                         array_intersect( (array)$addgroup, $addable ) );
 162
 163                 $oldGroups = $user->getGroups();
 164                 $newGroups = $oldGroups;
 165                 // remove then add groups
 166                 if( $removegroup ) {
 167                         $newGroups = array_diff($newGroups, $removegroup);
 168                         foreach( $removegroup as $group ) {
 169                                 $user->removeGroup( $group );
 170                         }
 171                 }
 172                 if( $addgroup ) {
 173                         $newGroups = array_merge($newGroups, $addgroup);
 174                         foreach( $addgroup as $group ) {
 175                                 $user->addGroup( $group );
 176                         }
 177                 }
 178                 $newGroups = array_unique( $newGroups );
 179
 180                 // Ensure that caches are cleared
 181                 $user->invalidateCache();
 182
 183                 wfDebug( 'oldGroups: ' . print_r( $oldGroups, true ) );
 184                 wfDebug( 'newGroups: ' . print_r( $newGroups, true ) );
 185                 if( $user instanceof User ) {
 186                         // hmmm
 187                         wfRunHooks( 'UserRights', array( &$user, $addgroup, $removegroup ) );
 188                 }
 189
 190                 if( $newGroups != $oldGroups ) {
 191                         $this->addLogEntry( $user, $oldGroups, $newGroups );
 192                 }
 193         }
 194
 195         /**
 196          * Add a rights log entry for an action.
 197          */
 198         function addLogEntry( $user, $oldGroups, $newGroups ) {
 199                 global $wgRequest;
 200                 $log = new LogPage( 'rights' );
 201
 202                 $log->addEntry( 'rights',
 203                         $user->getUserPage(),
 204                         $wgRequest->getText( 'user-reason' ),
 205                         array(
 206                                 $this->makeGroupNameListForLog( $oldGroups ),
 207                                 $this->makeGroupNameListForLog( $newGroups )
 208                         )
 209                 );
 210         }
 211
 212         /**
 213          * Edit user groups membership
 214          * @param $username String: name of the user.
 215          */
 216         function editUserGroupsForm( $username ) {
 217                 global $wgOut;
 218
 219                 $user = $this->fetchUser( $username );
 220                 if( !$user ) {
 221                         return;
 222                 }
 223
 224                 $groups = $user->getGroups();
 225
 226                 $this->showEditUserGroupsForm( $user, $groups );
 227
 228                 // This isn't really ideal logging behavior, but let's not hide the
 229                 // interwiki logs if we're using them as is.
 230                 $this->showLogFragment( $user, $wgOut );
 231         }
 232
 233         /**
 234          * Normalize the input username, which may be local or remote, and
 235          * return a user (or proxy) object for manipulating it.
 236          *
 237          * Side effects: error output for invalid access
 238          * @return mixed User, UserRightsProxy, or null
 239          */
 240         function fetchUser( $username ) {
 241                 global $wgOut, $wgUser;
 242
 243                 $parts = explode( '@', $username );
 244                 if( count( $parts ) < 2 ) {
 245                         $name = trim( $username );
 246                         $database = '';
 247                 } else {
 248                         list( $name, $database ) = array_map( 'trim', $parts );
 249
 250                         if( !$wgUser->isAllowed( 'userrights-interwiki' ) ) {
 251                                 $wgOut->addWikiMsg( 'userrights-no-interwiki' );
 252                                 return null;
 253                         }
 254                         if( !UserRightsProxy::validDatabase( $database ) ) {
 255                                 $wgOut->addWikiMsg( 'userrights-nodatabase', $database );
 256                                 return null;
 257                         }
 258                 }
 259
 260                 if( $name == '' ) {
 261                         $wgOut->addWikiMsg( 'nouserspecified' );
 262                         return false;
 263                 }
 264
 265                 if( $name{0} == '#' ) {
 266                         // Numeric ID can be specified...
 267                         // We'll do a lookup for the name internally.
 268                         $id = intval( substr( $name, 1 ) );
 269
 270                         if( $database == '' ) {
 271                                 $name = User::whoIs( $id );
 272                         } else {
 273                                 $name = UserRightsProxy::whoIs( $database, $id );
 274                         }
 275
 276                         if( !$name ) {
 277                                 $wgOut->addWikiMsg( 'noname' );
 278                                 return null;
 279                         }
 280                 }
 281
 282                 if( $database == '' ) {
 283                         $user = User::newFromName( $name );
 284                 } else {
 285                         $user = UserRightsProxy::newFromName( $database, $name );
 286                 }
 287
 288                 if( !$user || $user->isAnon() ) {
 289                         $wgOut->addWikiMsg( 'nosuchusershort', $username );
 290                         return null;
 291                 }
 292
 293                 return $user;
 294         }
 295
 296         function makeGroupNameList( $ids ) {
 297                 if( empty( $ids ) ) {
 298                         return wfMsgForContent( 'rightsnone' );
 299                 } else {
 300                         return implode( ', ', $ids );
 301                 }
 302         }
 303
 304         function makeGroupNameListForLog( $ids ) {
 305                 if( empty( $ids ) ) {
 306                         return '';
 307                 } else {
 308                         return $this->makeGroupNameList( $ids );
 309                 }
 310         }
 311
 312         /**
 313          * Output a form to allow searching for a user
 314          */
 315         function switchForm() {
 316                 global $wgOut, $wgScript;
 317                 $wgOut->addHTML(
 318                         Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'name' => 'uluser', 'id' => 'mw-userrights-form1' ) ) .
 319                         Xml::hidden( 'title',  $this->getTitle()->getPrefixedText() ) .
 320                         Xml::openElement( 'fieldset' ) .
 321                         Xml::element( 'legend', array(), wfMsg( 'userrights-lookup-user' ) ) .
 322                         Xml::inputLabel( wfMsg( 'userrights-user-editname' ), 'user', 'username', 30, $this->mTarget ) . ' ' .
 323                         Xml::submitButton( wfMsg( 'editusergroup' ) ) .
 324                         Xml::closeElement( 'fieldset' ) .
 325                         Xml::closeElement( 'form' ) . "\n"
 326                 );
 327         }
 328
 329         /**
 330          * Go through used and available groups and return the ones that this
 331          * form will be able to manipulate based on the current user's system
 332          * permissions.
 333          *
 334          * @param $groups Array: list of groups the given user is in
 335          * @return Array:  Tuple of addable, then removable groups
 336          */
 337         protected function splitGroups( $groups ) {
 338                 list($addable, $removable, $addself, $removeself) = array_values( $this->changeableGroups() );
 339
 340                 $removable = array_intersect(
 341                                 array_merge( $this->isself ? $removeself : array(), $removable ),
 342                                 $groups ); // Can't remove groups the user doesn't have
 343                 $addable   = array_diff(
 344                                 array_merge( $this->isself ? $addself : array(), $addable ),
 345                                 $groups ); // Can't add groups the user does have
 346
 347                 return array( $addable, $removable );
 348         }
 349
 350         /**
 351          * Show the form to edit group memberships.
 352          *
 353          * @param $user      User or UserRightsProxy you're editing
 354          * @param $groups    Array:  Array of groups the user is in
 355          */
 356         protected function showEditUserGroupsForm( $user, $groups ) {
 357                 global $wgOut, $wgUser, $wgLang;
 358
 359                 $list = array();
 360                 foreach( $groups as $group )
 361                         $list[] = self::buildGroupLink( $group );
 362
 363                 $grouplist = '';
 364                 if( count( $list ) > 0 ) {
 365                         $grouplist = wfMsgHtml( 'userrights-groupsmember' );
 366                         $grouplist = '<p>' . $grouplist  . ' ' . $wgLang->listToText( $list ) . '</p>';
 367                 }
 368                 $wgOut->addHTML(
 369                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getTitle()->getLocalURL(), 'name' => 'editGroup', 'id' => 'mw-userrights-form2' ) ) .
 370                         Xml::hidden( 'user', $this->mTarget ) .
 371                         Xml::hidden( 'wpEditToken', $wgUser->editToken( $this->mTarget ) ) .
 372                         Xml::openElement( 'fieldset' ) .
 373                         Xml::element( 'legend', array(), wfMsg( 'userrights-editusergroup' ) ) .
 374                         wfMsgExt( 'editinguser', array( 'parse' ), wfEscapeWikiText( $user->getName() ) ) .
 375                         wfMsgExt( 'userrights-groups-help', array( 'parse' ) ) .
 376                         $grouplist .
 377                         Xml::tags( 'p', null, $this->groupCheckboxes( $groups ) ) .
 378                         Xml::openElement( 'table', array( 'border' => '0', 'id' => 'mw-userrights-table-outer' ) ) .
 379                                 "<tr>
 380                                         <td class='mw-label'>" .
 381                                                 Xml::label( wfMsg( 'userrights-reason' ), 'wpReason' ) .
 382                                         "</td>
 383                                         <td class='mw-input'>" .
 384                                                 Xml::input( 'user-reason', 60, false, array( 'id' => 'wpReason', 'maxlength' => 255 ) ) .
 385                                         "</td>
 386                                 </tr>
 387                                 <tr>
 388                                         <td></td>
 389                                         <td class='mw-submit'>" .
 390                                                 Xml::submitButton( wfMsg( 'saveusergroups' ), array( 'name' => 'saveusergroups', 'accesskey' => 's' ) ) .
 391                                         "</td>
 392                                 </tr>" .
 393                         Xml::closeElement( 'table' ) . "\n" .
 394                         Xml::closeElement( 'fieldset' ) .
 395                         Xml::closeElement( 'form' ) . "\n"
 396                 );
 397         }
 398
 399         /**
 400          * Format a link to a group description page
 401          *
 402          * @param $group string
 403          * @return string
 404          */
 405         private static function buildGroupLink( $group ) {
 406                 static $cache = array();
 407                 if( !isset( $cache[$group] ) )
 408                         $cache[$group] = User::makeGroupLinkHtml( $group, User::getGroupName( $group ) );
 409                 return $cache[$group];
 410         }
 411
 412         /**
 413          * Returns an array of all groups that may be edited
 414          * @return array Array of groups that may be edited.
 415          */
 416          protected static function getAllGroups() {
 417                 return User::getAllGroups();
 418          }
 419
 420         /**
 421          * Adds a table with checkboxes where you can select what groups to add/remove
 422          *
 423          * @param $usergroups Array: groups the user belongs to
 424          * @return string XHTML table element with checkboxes
 425          */
 426         private function groupCheckboxes( $usergroups ) {
 427                 $allgroups = $this->getAllGroups();
 428                 $ret = '';
 429
 430                 $column = 1;
 431                 $settable_col = '';
 432                 $unsettable_col = '';
 433
 434                 foreach ($allgroups as $group) {
 435                         $set = in_array( $group, $usergroups );
 436                         # Should the checkbox be disabled?
 437                         $disabled = !(
 438                                 ( $set && $this->canRemove( $group ) ) ||
 439                                 ( !$set && $this->canAdd( $group ) ) );
 440                         # Do we need to point out that this action is irreversible?
 441                         $irreversible = !$disabled && (
 442                                 ($set && !$this->canAdd( $group )) ||
 443                                 (!$set && !$this->canRemove( $group ) ) );
 444
 445                         $attr = $disabled ? array( 'disabled' => 'disabled' ) : array();
 446                         $text = $irreversible
 447                                 ? wfMsgHtml( 'userrights-irreversible-marker', User::getGroupMember( $group ) )
 448                                 : User::getGroupMember( $group );
 449                         $checkbox = Xml::checkLabel( $text, "wpGroup-$group",
 450                                 "wpGroup-$group", $set, $attr );
 451                         $checkbox = $disabled ? Xml::tags( 'span', array( 'class' => 'mw-userrights-disabled' ), $checkbox ) : $checkbox;
 452
 453                         if ($disabled) {
 454                                 $unsettable_col .= "$checkbox<br />\n";
 455                         } else {
 456                                 $settable_col .= "$checkbox<br />\n";
 457                         }
 458                 }
 459
 460                 if ($column) {
 461                         $ret .= Xml::openElement( 'table', array( 'border' => '0', 'class' => 'mw-userrights-groups' ) ) .
 462                                 "<tr>
 463 ";
 464                         if( $settable_col !== '' ) {
 465                                 $ret .= xml::element( 'th', null, wfMsg( 'userrights-changeable-col' ) );
 466                         }
 467                         if( $unsettable_col !== '' ) {
 468                                 $ret .= xml::element( 'th', null, wfMsg( 'userrights-unchangeable-col' ) );
 469                         }
 470                         $ret.= "</tr>
 471                                 <tr>
 472 ";
 473                         if( $settable_col !== '' ) {
 474                                 $ret .=
 475 "                                       <td style='vertical-align:top;'>
 476                                                 $settable_col
 477                                         </td>
 478 ";
 479                         }
 480                         if( $unsettable_col !== '' ) {
 481                                 $ret .=
 482 "                                       <td style='vertical-align:top;'>
 483                                                 $unsettable_col
 484                                         </td>
 485 ";
 486                         }
 487                         $ret .= Xml::closeElement( 'tr' ) . Xml::closeElement( 'table' );
 488                 }
 489
 490                 return $ret;
 491         }
 492
 493         /**
 494          * @param  $group String: the name of the group to check
 495          * @return bool Can we remove the group?
 496          */
 497         private function canRemove( $group ) {
 498                 // $this->changeableGroups()['remove'] doesn't work, of course. Thanks,
 499                 // PHP.
 500                 $groups = $this->changeableGroups();
 501                 return in_array( $group, $groups['remove'] ) || ($this->isself && in_array( $group, $groups['remove-self'] ));
 502         }
 503
 504         /**
 505          * @param $group string: the name of the group to check
 506          * @return bool Can we add the group?
 507          */
 508         private function canAdd( $group ) {
 509                 $groups = $this->changeableGroups();
 510                 return in_array( $group, $groups['add'] ) || ($this->isself && in_array( $group, $groups['add-self'] ));
 511         }
 512
 513         /**
 514          * Returns an array of the groups that the user can add/remove.
 515          *
 516          * @return Array array( 'add' => array( addablegroups ), 'remove' => array( removablegroups ) , 'add-self' => array( addablegroups to self), 'remove-self' => array( removable groups from self) )
 517          */
 518         function changeableGroups() {
 519                 global $wgUser;
 520
 521                 if( $wgUser->isAllowed( 'userrights' ) ) {
 522                         // This group gives the right to modify everything (reverse-
 523                         // compatibility with old "userrights lets you change
 524                         // everything")
 525                         // Using array_merge to make the groups reindexed
 526                         $all = array_merge( User::getAllGroups() );
 527                         return array(
 528                                 'add' => $all,
 529                                 'remove' => $all,
 530                                 'add-self' => array(),
 531                                 'remove-self' => array()
 532                         );
 533                 }
 534
 535                 // Okay, it's not so simple, we will have to go through the arrays
 536                 $groups = array(
 537                                 'add' => array(),
 538                                 'remove' => array(),
 539                                 'add-self' => array(),
 540                                 'remove-self' => array() );
 541                 $addergroups = $wgUser->getEffectiveGroups();
 542
 543                 foreach ($addergroups as $addergroup) {
 544                         $groups = array_merge_recursive(
 545                                 $groups, $this->changeableByGroup($addergroup)
 546                         );
 547                         $groups['add']    = array_unique( $groups['add'] );
 548                         $groups['remove'] = array_unique( $groups['remove'] );
 549                         $groups['add-self'] = array_unique( $groups['add-self'] );
 550                         $groups['remove-self'] = array_unique( $groups['remove-self'] );
 551                 }
 552
 553                 // Run a hook because we can
 554                 wfRunHooks( 'UserrightsChangeableGroups', array( $this, $wgUser, $addergroups, &$groups ) );
 555
 556                 return $groups;
 557         }
 558
 559         /**
 560          * Returns an array of the groups that a particular group can add/remove.
 561          *
 562          * @param $group String: the group to check for whether it can add/remove
 563          * @return Array array( 'add' => array( addablegroups ), 'remove' => array( removablegroups ) , 'add-self' => array( addablegroups to self), 'remove-self' => array( removable groups from self) )
 564          */
 565         private function changeableByGroup( $group ) {
 566                 global $wgAddGroups, $wgRemoveGroups, $wgGroupsAddToSelf, $wgGroupsRemoveFromSelf;
 567
 568                 $groups = array( 'add' => array(), 'remove' => array(), 'add-self' => array(), 'remove-self' => array() );
 569                 if( empty($wgAddGroups[$group]) ) {
 570                         // Don't add anything to $groups
 571                 } elseif( $wgAddGroups[$group] === true ) {
 572                         // You get everything
 573                         $groups['add'] = User::getAllGroups();
 574                 } elseif( is_array($wgAddGroups[$group]) ) {
 575                         $groups['add'] = $wgAddGroups[$group];
 576                 }
 577
 578                 // Same thing for remove
 579                 if( empty($wgRemoveGroups[$group]) ) {
 580                 } elseif($wgRemoveGroups[$group] === true ) {
 581                         $groups['remove'] = User::getAllGroups();
 582                 } elseif( is_array($wgRemoveGroups[$group]) ) {
 583                         $groups['remove'] = $wgRemoveGroups[$group];
 584                 }
 585
 586                 // Re-map numeric keys of AddToSelf/RemoveFromSelf to the 'user' key for backwards compatibility
 587                 if( empty($wgGroupsAddToSelf['user']) || $wgGroupsAddToSelf['user'] !== true ) {
 588                         foreach($wgGroupsAddToSelf as $key => $value) {
 589                                 if( is_int($key) ) {
 590                                         $wgGroupsAddToSelf['user'][] = $value;
 591                                 }
 592                         }
 593                 }
 594
 595                 if( empty($wgGroupsRemoveFromSelf['user']) || $wgGroupsRemoveFromSelf['user'] !== true ) {
 596                         foreach($wgGroupsRemoveFromSelf as $key => $value) {
 597                                 if( is_int($key) ) {
 598                                         $wgGroupsRemoveFromSelf['user'][] = $value;
 599                                 }
 600                         }
 601                 }
 602
 603                 // Now figure out what groups the user can add to him/herself
 604                 if( empty($wgGroupsAddToSelf[$group]) ) {
 605                 } elseif( $wgGroupsAddToSelf[$group] === true ) {
 606                         // No idea WHY this would be used, but it's there
 607                         $groups['add-self'] = User::getAllGroups();
 608                 } elseif( is_array($wgGroupsAddToSelf[$group]) ) {
 609                         $groups['add-self'] = $wgGroupsAddToSelf[$group];
 610                 }
 611
 612                 if( empty($wgGroupsRemoveFromSelf[$group]) ) {
 613                 } elseif( $wgGroupsRemoveFromSelf[$group] === true ) {
 614                         $groups['remove-self'] = User::getAllGroups();
 615                 } elseif( is_array($wgGroupsRemoveFromSelf[$group]) ) {
 616                         $groups['remove-self'] = $wgGroupsRemoveFromSelf[$group];
 617                 }
 618
 619                 return $groups;
 620         }
 621
 622         /**
 623          * Show a rights log fragment for the specified user
 624          *
 625          * @param $user User to show log for
 626          * @param $output OutputPage to use
 627          */
 628         protected function showLogFragment( $user, $output ) {
 629                 $output->addHTML( Xml::element( 'h2', null, LogPage::logName( 'rights' ) . "\n" ) );
 630                 LogEventsList::showLogExtract( $output, 'rights', $user->getUserPage()->getPrefixedText() );
 631         }
 632 }