includes/specials/SpecialUserrights.php

   1 <?php
   2 /**
   3  * Implements Special:Userrights
   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  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * Special page to allow managing user group membership
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class UserrightsPage extends SpecialPage {
  30         # The target of the local right-adjuster's interest.  Can be gotten from
  31         # either a GET parameter or a subpage-style parameter, so have a member
  32         # variable for it.
  33         protected $mTarget;
  34         protected $isself = false;
  35
  36         public function __construct() {
  37                 parent::__construct( 'Userrights' );
  38         }
  39
  40         public function isRestricted() {
  41                 return true;
  42         }
  43
  44         public function userCanExecute( User $user ) {
  45                 return $this->userCanChangeRights( $user, false );
  46         }
  47
  48         public function userCanChangeRights( $user, $checkIfSelf = true ) {
  49                 $available = $this->changeableGroups();
  50                 if ( $user->getId() == 0 ) {
  51                         return false;
  52                 }
  53                 return !empty( $available['add'] )
  54                         || !empty( $available['remove'] )
  55                         || ( ( $this->isself || !$checkIfSelf ) &&
  56                                 ( !empty( $available['add-self'] )
  57                                         || !empty( $available['remove-self'] ) ) );
  58         }
  59
  60         /**
  61          * Manage forms to be shown according to posted data.
  62          * Depending on the submit button used, call a form or a save function.
  63          *
  64          * @param $par Mixed: string if any subpage provided, else null
  65          * @throws UserBlockedError|PermissionsError
  66          */
  67         public function execute( $par ) {
  68                 // If the visitor doesn't have permissions to assign or remove
  69                 // any groups, it's a bit silly to give them the user search prompt.
  70
  71                 $user = $this->getUser();
  72
  73                 /*
  74                  * If the user is blocked and they only have "partial" access
  75                  * (e.g. they don't have the userrights permission), then don't
  76                  * allow them to use Special:UserRights.
  77                  */
  78                 if( $user->isBlocked() && !$user->isAllowed( 'userrights' ) ) {
  79                         throw new UserBlockedError( $user->getBlock() );
  80                 }
  81
  82                 $request = $this->getRequest();
  83
  84                 if( $par !== null ) {
  85                         $this->mTarget = $par;
  86                 } else {
  87                         $this->mTarget = $request->getVal( 'user' );
  88                 }
  89
  90                 $available = $this->changeableGroups();
  91
  92                 if ( $this->mTarget === null ) {
  93                         /*
  94                          * If the user specified no target, and they can only
  95                          * edit their own groups, automatically set them as the
  96                          * target.
  97                          */
  98                         if ( !count( $available['add'] ) && !count( $available['remove'] ) )
  99                                 $this->mTarget = $user->getName();
 100                 }
 101
 102                 if ( User::getCanonicalName( $this->mTarget ) == $user->getName() ) {
 103                         $this->isself = true;
 104                 }
 105
 106                 if( !$this->userCanChangeRights( $user, true ) ) {
 107                         // @todo FIXME: There may be intermediate groups we can mention.
 108                         $msg = $user->isAnon() ? 'userrights-nologin' : 'userrights-notallowed';
 109                         throw new PermissionsError( null, array( array( $msg ) ) );
 110                 }
 111
 112                 $this->checkReadOnly();
 113
 114                 $this->setHeaders();
 115                 $this->outputHeader();
 116
 117                 $out = $this->getOutput();
 118                 $out->addModuleStyles( 'mediawiki.special' );
 119
 120                 // show the general form
 121                 if ( count( $available['add'] ) || count( $available['remove'] ) ) {
 122                         $this->switchForm();
 123                 }
 124
 125                 if( $request->wasPosted() ) {
 126                         // save settings
 127                         if( $request->getCheck( 'saveusergroups' ) ) {
 128                                 $reason = $request->getVal( 'user-reason' );
 129                                 $tok = $request->getVal( 'wpEditToken' );
 130                                 if( $user->matchEditToken( $tok, $this->mTarget ) ) {
 131                                         $this->saveUserGroups(
 132                                                 $this->mTarget,
 133                                                 $reason
 134                                         );
 135
 136                                         $out->redirect( $this->getSuccessURL() );
 137                                         return;
 138                                 }
 139                         }
 140                 }
 141
 142                 // show some more forms
 143                 if( $this->mTarget !== null ) {
 144                         $this->editUserGroupsForm( $this->mTarget );
 145                 }
 146         }
 147
 148         function getSuccessURL() {
 149                 return $this->getTitle( $this->mTarget )->getFullURL();
 150         }
 151
 152         /**
 153          * Save user groups changes in the database.
 154          * Data comes from the editUserGroupsForm() form function
 155          *
 156          * @param string $username username to apply changes to.
 157          * @param string $reason reason for group change
 158          * @return null
 159          */
 160         function saveUserGroups( $username, $reason = '' ) {
 161                 $status = $this->fetchUser( $username );
 162                 if( !$status->isOK() ) {
 163                         $this->getOutput()->addWikiText( $status->getWikiText() );
 164                         return;
 165                 } else {
 166                         $user = $status->value;
 167                 }
 168
 169                 $allgroups = $this->getAllGroups();
 170                 $addgroup = array();
 171                 $removegroup = array();
 172
 173                 // This could possibly create a highly unlikely race condition if permissions are changed between
 174                 //  when the form is loaded and when the form is saved. Ignoring it for the moment.
 175                 foreach ( $allgroups as $group ) {
 176                         // We'll tell it to remove all unchecked groups, and add all checked groups.
 177                         // Later on, this gets filtered for what can actually be removed
 178                         if ( $this->getRequest()->getCheck( "wpGroup-$group" ) ) {
 179                                 $addgroup[] = $group;
 180                         } else {
 181                                 $removegroup[] = $group;
 182                         }
 183                 }
 184
 185                 $this->doSaveUserGroups( $user, $addgroup, $removegroup, $reason );
 186         }
 187
 188         /**
 189          * Save user groups changes in the database.
 190          *
 191          * @param $user User object
 192          * @param array $add of groups to add
 193          * @param array $remove of groups to remove
 194          * @param string $reason reason for group change
 195          * @return Array: Tuple of added, then removed groups
 196          */
 197         function doSaveUserGroups( $user, $add, $remove, $reason = '' ) {
 198                 // Validate input set...
 199                 $isself = ( $user->getName() == $this->getUser()->getName() );
 200                 $groups = $user->getGroups();
 201                 $changeable = $this->changeableGroups();
 202                 $addable = array_merge( $changeable['add'], $isself ? $changeable['add-self'] : array() );
 203                 $removable = array_merge( $changeable['remove'], $isself ? $changeable['remove-self'] : array() );
 204
 205                 $remove = array_unique(
 206                         array_intersect( (array)$remove, $removable, $groups ) );
 207                 $add = array_unique( array_diff(
 208                         array_intersect( (array)$add, $addable ),
 209                         $groups )
 210                 );
 211
 212                 $oldGroups = $user->getGroups();
 213                 $newGroups = $oldGroups;
 214
 215                 // remove then add groups
 216                 if( $remove ) {
 217                         $newGroups = array_diff( $newGroups, $remove );
 218                         foreach( $remove as $group ) {
 219                                 $user->removeGroup( $group );
 220                         }
 221                 }
 222                 if( $add ) {
 223                         $newGroups = array_merge( $newGroups, $add );
 224                         foreach( $add as $group ) {
 225                                 $user->addGroup( $group );
 226                         }
 227                 }
 228                 $newGroups = array_unique( $newGroups );
 229
 230                 // Ensure that caches are cleared
 231                 $user->invalidateCache();
 232
 233                 wfDebug( 'oldGroups: ' . print_r( $oldGroups, true ) );
 234                 wfDebug( 'newGroups: ' . print_r( $newGroups, true ) );
 235                 wfRunHooks( 'UserRights', array( &$user, $add, $remove ) );
 236
 237                 if( $newGroups != $oldGroups ) {
 238                         $this->addLogEntry( $user, $oldGroups, $newGroups, $reason );
 239                 }
 240                 return array( $add, $remove );
 241         }
 242
 243         /**
 244          * Add a rights log entry for an action.
 245          */
 246         function addLogEntry( $user, $oldGroups, $newGroups, $reason ) {
 247                 $logEntry = new ManualLogEntry( 'rights', 'rights' );
 248                 $logEntry->setPerformer( $this->getUser() );
 249                 $logEntry->setTarget( $user->getUserPage() );
 250                 $logEntry->setComment( $reason );
 251                 $logEntry->setParameters( array(
 252                         '4::oldgroups' => $oldGroups,
 253                         '5::newgroups' => $newGroups,
 254                 ) );
 255                 $logid = $logEntry->insert();
 256                 $logEntry->publish( $logid );
 257         }
 258
 259         /**
 260          * Edit user groups membership
 261          * @param string $username name of the user.
 262          */
 263         function editUserGroupsForm( $username ) {
 264                 $status = $this->fetchUser( $username );
 265                 if( !$status->isOK() ) {
 266                         $this->getOutput()->addWikiText( $status->getWikiText() );
 267                         return;
 268                 } else {
 269                         $user = $status->value;
 270                 }
 271
 272                 $groups = $user->getGroups();
 273
 274                 $this->showEditUserGroupsForm( $user, $groups );
 275
 276                 // This isn't really ideal logging behavior, but let's not hide the
 277                 // interwiki logs if we're using them as is.
 278                 $this->showLogFragment( $user, $this->getOutput() );
 279         }
 280
 281         /**
 282          * Normalize the input username, which may be local or remote, and
 283          * return a user (or proxy) object for manipulating it.
 284          *
 285          * Side effects: error output for invalid access
 286          * @param string $username
 287          * @return Status object
 288          */
 289         public function fetchUser( $username ) {
 290                 global $wgUserrightsInterwikiDelimiter;
 291
 292                 $parts = explode( $wgUserrightsInterwikiDelimiter, $username );
 293                 if( count( $parts ) < 2 ) {
 294                         $name = trim( $username );
 295                         $database = '';
 296                 } else {
 297                         list( $name, $database ) = array_map( 'trim', $parts );
 298
 299                         if( $database == wfWikiID() ) {
 300                                 $database = '';
 301                         } else {
 302                                 if( !$this->getUser()->isAllowed( 'userrights-interwiki' ) ) {
 303                                         return Status::newFatal( 'userrights-no-interwiki' );
 304                                 }
 305                                 if( !UserRightsProxy::validDatabase( $database ) ) {
 306                                         return Status::newFatal( 'userrights-nodatabase', $database );
 307                                 }
 308                         }
 309                 }
 310
 311                 if( $name === '' ) {
 312                         return Status::newFatal( 'nouserspecified' );
 313                 }
 314
 315                 if( $name[0] == '#' ) {
 316                         // Numeric ID can be specified...
 317                         // We'll do a lookup for the name internally.
 318                         $id = intval( substr( $name, 1 ) );
 319
 320                         if( $database == '' ) {
 321                                 $name = User::whoIs( $id );
 322                         } else {
 323                                 $name = UserRightsProxy::whoIs( $database, $id );
 324                         }
 325
 326                         if( !$name ) {
 327                                 return Status::newFatal( 'noname' );
 328                         }
 329                 } else {
 330                         $name = User::getCanonicalName( $name );
 331                         if( $name === false ) {
 332                                 // invalid name
 333                                 return Status::newFatal( 'nosuchusershort', $username );
 334                         }
 335                 }
 336
 337                 if( $database == '' ) {
 338                         $user = User::newFromName( $name );
 339                 } else {
 340                         $user = UserRightsProxy::newFromName( $database, $name );
 341                 }
 342
 343                 if( !$user || $user->isAnon() ) {
 344                         return Status::newFatal( 'nosuchusershort', $username );
 345                 }
 346
 347                 return Status::newGood( $user );
 348         }
 349
 350         function makeGroupNameList( $ids ) {
 351                 if( empty( $ids ) ) {
 352                         return $this->msg( 'rightsnone' )->inContentLanguage()->text();
 353                 } else {
 354                         return implode( ', ', $ids );
 355                 }
 356         }
 357
 358         /**
 359          * Make a list of group names to be stored as parameter for log entries
 360          *
 361          * @deprecated in 1.21; use LogFormatter instead.
 362          * @param $ids array
 363          * @return string
 364          */
 365         function makeGroupNameListForLog( $ids ) {
 366                 wfDeprecated( __METHOD__, '1.21' );
 367
 368                 if( empty( $ids ) ) {
 369                         return '';
 370                 } else {
 371                         return $this->makeGroupNameList( $ids );
 372                 }
 373         }
 374
 375         /**
 376          * Output a form to allow searching for a user
 377          */
 378         function switchForm() {
 379                 global $wgScript;
 380                 $this->getOutput()->addHTML(
 381                         Html::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'name' => 'uluser', 'id' => 'mw-userrights-form1' ) ) .
 382                         Html::hidden( 'title', $this->getTitle()->getPrefixedText() ) .
 383                         Xml::fieldset( $this->msg( 'userrights-lookup-user' )->text() ) .
 384                         Xml::inputLabel( $this->msg( 'userrights-user-editname' )->text(), 'user', 'username', 30, str_replace( '_', ' ', $this->mTarget ) ) . ' ' .
 385                         Xml::submitButton( $this->msg( 'editusergroup' )->text() ) .
 386                         Html::closeElement( 'fieldset' ) .
 387                         Html::closeElement( 'form' ) . "\n"
 388                 );
 389         }
 390
 391         /**
 392          * Go through used and available groups and return the ones that this
 393          * form will be able to manipulate based on the current user's system
 394          * permissions.
 395          *
 396          * @param array $groups list of groups the given user is in
 397          * @return Array:  Tuple of addable, then removable groups
 398          */
 399         protected function splitGroups( $groups ) {
 400                 list( $addable, $removable, $addself, $removeself ) = array_values( $this->changeableGroups() );
 401
 402                 $removable = array_intersect(
 403                         array_merge( $this->isself ? $removeself : array(), $removable ),
 404                         $groups
 405                 ); // Can't remove groups the user doesn't have
 406                 $addable = array_diff(
 407                         array_merge( $this->isself ? $addself : array(), $addable ),
 408                         $groups
 409                 ); // Can't add groups the user does have
 410
 411                 return array( $addable, $removable );
 412         }
 413
 414         /**
 415          * Show the form to edit group memberships.
 416          *
 417          * @param $user      User or UserRightsProxy you're editing
 418          * @param $groups    Array:  Array of groups the user is in
 419          */
 420         protected function showEditUserGroupsForm( $user, $groups ) {
 421                 $list = array();
 422                 $membersList = array();
 423                 foreach( $groups as $group ) {
 424                         $list[] = self::buildGroupLink( $group );
 425                         $membersList[] = self::buildGroupMemberLink( $group );
 426                 }
 427
 428                 $autoList = array();
 429                 $autoMembersList = array();
 430                 if ( $user instanceof User ) {
 431                         foreach( Autopromote::getAutopromoteGroups( $user ) as $group ) {
 432                                 $autoList[] = self::buildGroupLink( $group );
 433                                 $autoMembersList[] = self::buildGroupMemberLink( $group );
 434                         }
 435                 }
 436
 437                 $language = $this->getLanguage();
 438                 $displayedList = $this->msg( 'userrights-groupsmember-type',
 439                         $language->listToText( $list ),
 440                         $language->listToText( $membersList )
 441                 )->plain();
 442                 $displayedAutolist = $this->msg( 'userrights-groupsmember-type',
 443                         $language->listToText( $autoList ),
 444                         $language->listToText( $autoMembersList )
 445                 )->plain();
 446
 447                 $grouplist = '';
 448                 $count = count( $list );
 449                 if ( $count > 0 ) {
 450                         $grouplist = $this->msg( 'userrights-groupsmember', $count, $user->getName() )->parse();
 451                         $grouplist = '<p>' . $grouplist  . ' ' . $displayedList . "</p>\n";
 452                 }
 453                 $count = count( $autoList );
 454                 if ( $count > 0 ) {
 455                         $autogrouplistintro = $this->msg( 'userrights-groupsmember-auto', $count, $user->getName() )->parse();
 456                         $grouplist .= '<p>' . $autogrouplistintro  . ' ' . $displayedAutolist . "</p>\n";
 457                 }
 458
 459                 $userToolLinks = Linker::userToolLinks(
 460                                 $user->getId(),
 461                                 $user->getName(),
 462                                 false, /* default for redContribsWhenNoEdits */
 463                                 Linker::TOOL_LINKS_EMAIL /* Add "send e-mail" link */
 464                 );
 465
 466                 $this->getOutput()->addHTML(
 467                         Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getTitle()->getLocalURL(), 'name' => 'editGroup', 'id' => 'mw-userrights-form2' ) ) .
 468                         Html::hidden( 'user', $this->mTarget ) .
 469                         Html::hidden( 'wpEditToken', $this->getUser()->getEditToken( $this->mTarget ) ) .
 470                         Xml::openElement( 'fieldset' ) .
 471                         Xml::element( 'legend', array(), $this->msg( 'userrights-editusergroup', $user->getName() )->text() ) .
 472                         $this->msg( 'editinguser' )->params( wfEscapeWikiText( $user->getName() ) )->rawParams( $userToolLinks )->parse() .
 473                         $this->msg( 'userrights-groups-help', $user->getName() )->parse() .
 474                         $grouplist .
 475                         Xml::tags( 'p', null, $this->groupCheckboxes( $groups, $user ) ) .
 476                         Xml::openElement( 'table', array( 'id' => 'mw-userrights-table-outer' ) ) .
 477                                 "<tr>
 478                                         <td class='mw-label'>" .
 479                                                 Xml::label( $this->msg( 'userrights-reason' )->text(), 'wpReason' ) .
 480                                         "</td>
 481                                         <td class='mw-input'>" .
 482                                                 Xml::input( 'user-reason', 60, $this->getRequest()->getVal( 'user-reason', false ),
 483                                                         array( 'id' => 'wpReason', 'maxlength' => 255 ) ) .
 484                                         "</td>
 485                                 </tr>
 486                                 <tr>
 487                                         <td></td>
 488                                         <td class='mw-submit'>" .
 489                                                 Xml::submitButton( $this->msg( 'saveusergroups' )->text(),
 490                                                         array( 'name' => 'saveusergroups' ) + Linker::tooltipAndAccesskeyAttribs( 'userrights-set' ) ) .
 491                                         "</td>
 492                                 </tr>" .
 493                         Xml::closeElement( 'table' ) . "\n" .
 494                         Xml::closeElement( 'fieldset' ) .
 495                         Xml::closeElement( 'form' ) . "\n"
 496                 );
 497         }
 498
 499         /**
 500          * Format a link to a group description page
 501          *
 502          * @param $group string
 503          * @return string
 504          */
 505         private static function buildGroupLink( $group ) {
 506                 return User::makeGroupLinkHtml( $group, User::getGroupName( $group ) );
 507         }
 508
 509         /**
 510          * Format a link to a group member description page
 511          *
 512          * @param $group string
 513          * @return string
 514          */
 515         private static function buildGroupMemberLink( $group ) {
 516                 return User::makeGroupLinkHtml( $group, User::getGroupMember( $group ) );
 517         }
 518
 519         /**
 520          * Returns an array of all groups that may be edited
 521          * @return array Array of groups that may be edited.
 522          */
 523         protected static function getAllGroups() {
 524                 return User::getAllGroups();
 525         }
 526
 527         /**
 528          * Adds a table with checkboxes where you can select what groups to add/remove
 529          *
 530          * @todo Just pass the username string?
 531          * @param array $usergroups groups the user belongs to
 532          * @param $user User a user object
 533          * @return string XHTML table element with checkboxes
 534          */
 535         private function groupCheckboxes( $usergroups, $user ) {
 536                 $allgroups = $this->getAllGroups();
 537                 $ret = '';
 538
 539                 # Put all column info into an associative array so that extensions can
 540                 # more easily manage it.
 541                 $columns = array( 'unchangeable' => array(), 'changeable' => array() );
 542
 543                 foreach( $allgroups as $group ) {
 544                         $set = in_array( $group, $usergroups );
 545                         # Should the checkbox be disabled?
 546                         $disabled = !(
 547                                 ( $set && $this->canRemove( $group ) ) ||
 548                                 ( !$set && $this->canAdd( $group ) ) );
 549                         # Do we need to point out that this action is irreversible?
 550                         $irreversible = !$disabled && (
 551                                 ( $set && !$this->canAdd( $group ) ) ||
 552                                 ( !$set && !$this->canRemove( $group ) ) );
 553
 554                         $checkbox = array(
 555                                 'set' => $set,
 556                                 'disabled' => $disabled,
 557                                 'irreversible' => $irreversible
 558                         );
 559
 560                         if( $disabled ) {
 561                                 $columns['unchangeable'][$group] = $checkbox;
 562                         } else {
 563                                 $columns['changeable'][$group] = $checkbox;
 564                         }
 565                 }
 566
 567                 # Build the HTML table
 568                 $ret .= Xml::openElement( 'table', array( 'class' => 'mw-userrights-groups' ) ) .
 569                         "<tr>\n";
 570                 foreach( $columns as $name => $column ) {
 571                         if( $column === array() )
 572                                 continue;
 573                         $ret .= Xml::element( 'th', null, $this->msg( 'userrights-' . $name . '-col', count( $column ) )->text() );
 574                 }
 575                 $ret .= "</tr>\n<tr>\n";
 576                 foreach( $columns as $column ) {
 577                         if( $column === array() )
 578                                 continue;
 579                         $ret .= "\t<td style='vertical-align:top;'>\n";
 580                         foreach( $column as $group => $checkbox ) {
 581                                 $attr = $checkbox['disabled'] ? array( 'disabled' => 'disabled' ) : array();
 582
 583                                 $member = User::getGroupMember( $group, $user->getName() );
 584                                 if ( $checkbox['irreversible'] ) {
 585                                         $text = $this->msg( 'userrights-irreversible-marker', $member )->escaped();
 586                                 } else {
 587                                         $text = htmlspecialchars( $member );
 588                                 }
 589                                 $checkboxHtml = Xml::checkLabel( $text, "wpGroup-" . $group,
 590                                         "wpGroup-" . $group, $checkbox['set'], $attr );
 591                                 $ret .= "\t\t" . ( $checkbox['disabled']
 592                                         ? Xml::tags( 'span', array( 'class' => 'mw-userrights-disabled' ), $checkboxHtml )
 593                                         : $checkboxHtml
 594                                 ) . "<br />\n";
 595                         }
 596                         $ret .= "\t</td>\n";
 597                 }
 598                 $ret .= Xml::closeElement( 'tr' ) . Xml::closeElement( 'table' );
 599
 600                 return $ret;
 601         }
 602
 603         /**
 604          * @param  $group String: the name of the group to check
 605          * @return bool Can we remove the group?
 606          */
 607         private function canRemove( $group ) {
 608                 // $this->changeableGroups()['remove'] doesn't work, of course. Thanks,
 609                 // PHP.
 610                 $groups = $this->changeableGroups();
 611                 return in_array( $group, $groups['remove'] ) || ( $this->isself && in_array( $group, $groups['remove-self'] ) );
 612         }
 613
 614         /**
 615          * @param string $group the name of the group to check
 616          * @return bool Can we add the group?
 617          */
 618         private function canAdd( $group ) {
 619                 $groups = $this->changeableGroups();
 620                 return in_array( $group, $groups['add'] ) || ( $this->isself && in_array( $group, $groups['add-self'] ) );
 621         }
 622
 623         /**
 624          * Returns $this->getUser()->changeableGroups()
 625          *
 626          * @return Array array( 'add' => array( addablegroups ), 'remove' => array( removablegroups ), 'add-self' => array( addablegroups to self ), 'remove-self' => array( removable groups from self ) )
 627          */
 628         function changeableGroups() {
 629                 return $this->getUser()->changeableGroups();
 630         }
 631
 632         /**
 633          * Show a rights log fragment for the specified user
 634          *
 635          * @param $user User to show log for
 636          * @param $output OutputPage to use
 637          */
 638         protected function showLogFragment( $user, $output ) {
 639                 $rightsLogPage = new LogPage( 'rights' );
 640                 $output->addHTML( Xml::element( 'h2', null, $rightsLogPage->getName()->text() ) );
 641                 LogEventsList::showLogExtract( $output, 'rights', $user->getUserPage() );
 642         }
 643
 644         protected function getGroupName() {
 645                 return 'users';
 646         }
 647 }