includes/specials/SpecialUserlogout.php

   1 <?php
   2 /**
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  * http://www.gnu.org/copyleft/gpl.html
  18  */
  19
  20 /**
  21  * Implements Special:Userlogout
  22  * @ingroup SpecialPage
  23  */
  24 class SpecialUserlogout extends UnlistedSpecialPage {
  25
  26         function __construct() {
  27                 parent::__construct( 'Userlogout' );
  28         }
  29
  30         function execute( $par ) {
  31                 global $wgUser, $wgOut;
  32
  33                 /**
  34                  * Some satellite ISPs use broken precaching schemes that log people out straight after
  35                  * they're logged in (bug 17790). Luckily, there's a way to detect such requests.
  36                  */
  37                 if ( isset( $_SERVER['REQUEST_URI'] ) && strpos( $_SERVER['REQUEST_URI'], '&amp;' ) !== false ) {
  38                         wfDebug( "Special:Userlogout request {$_SERVER['REQUEST_URI']} looks suspicious, denying.\n" );
  39                         wfHttpError( 400, wfMsg( 'loginerror' ), wfMsg( 'suspicious-userlogout' ) );
  40                         return;
  41                 }
  42
  43                 $this->setHeaders();
  44                 $this->outputHeader();
  45
  46                 $oldName = $wgUser->getName();
  47                 $wgUser->logout();
  48
  49                 $wgOut->addWikiMsg( 'logouttext' );
  50
  51                 // Hook.
  52                 $injected_html = '';
  53                 wfRunHooks( 'UserLogoutComplete', array( &$wgUser, &$injected_html, $oldName ) );
  54                 $wgOut->addHTML( $injected_html );
  55
  56                 $wgOut->returnToMain();
  57         }
  58 }