includes/specials/SpecialUnlockdb.php

   1 <?php
   2 /**
   3  * Implements Special:Unlockdb
   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  * Implements Special:Unlockdb
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class SpecialUnlockdb extends SpecialPage {
  30
  31         public function __construct() {
  32                 parent::__construct( 'Unlockdb', 'siteadmin' );
  33         }
  34
  35         public function execute( $par ) {
  36                 global $wgUser, $wgRequest;
  37
  38                 $this->setHeaders();
  39
  40                 # Permission check
  41                 if( !$this->userCanExecute( $wgUser ) ) {
  42                         $this->displayRestrictionError();
  43                         return;
  44                 }
  45
  46                 $this->outputHeader();
  47
  48                 $action = $wgRequest->getVal( 'action' );
  49
  50                 if ( $action == 'success' ) {
  51                         $this->showSuccess();
  52                 } elseif ( $action == 'submit' && $wgRequest->wasPosted() &&
  53                         $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ) ) ) {
  54                         $this->doSubmit();
  55                 } else {
  56                         $this->showForm();
  57                 }
  58         }
  59
  60         private function showForm( $err = '' ) {
  61                 global $wgOut, $wgUser;
  62
  63                 global $wgReadOnlyFile;
  64                 if( !file_exists( $wgReadOnlyFile ) ) {
  65                         $wgOut->addWikiMsg( 'databasenotlocked' );
  66                         return;
  67                 }
  68
  69                 $wgOut->addWikiMsg( 'unlockdbtext' );
  70
  71                 if ( $err != '' ) {
  72                         $wgOut->setSubtitle( wfMsg( 'formerror' ) );
  73                         $wgOut->addHTML( '<p class="error">' . htmlspecialchars( $err ) . "</p>\n" );
  74                 }
  75
  76                 $wgOut->addHTML(
  77                         Html::openElement( 'form', array( 'id' => 'unlockdb', 'method' => 'POST',
  78                                 'action' => $this->getTitle()->getLocalURL( 'action=submit' ) ) ) . "
  79 <table>
  80         <tr>
  81                 " . Html::openElement( 'td', array( 'style' => 'text-align:right' ) ) . "
  82                         " . Html::input( 'wpLockConfirm', null, 'checkbox' ) . "
  83                 </td>
  84                 " . Html::openElement( 'td', array( 'style' => 'text-align:left' ) ) .
  85                         wfMsgHtml( 'unlockconfirm' ) . "</td>
  86         </tr>
  87         <tr>
  88                 <td>&#160;</td>
  89                 " . Html::openElement( 'td', array( 'style' => 'text-align:left' ) ) . "
  90                         " . Html::input( 'wpLock', wfMsg( 'unlockbtn' ), 'submit' ) . "
  91                 </td>
  92         </tr>
  93 </table>\n" .
  94                         Html::hidden( 'wpEditToken', $wgUser->editToken() ) . "\n" .
  95                         Html::closeElement( 'form' )
  96                 );
  97
  98         }
  99
 100         private function doSubmit() {
 101                 global $wgOut, $wgRequest, $wgReadOnlyFile;
 102
 103                 $wpLockConfirm = $wgRequest->getCheck( 'wpLockConfirm' );
 104                 if ( !$wpLockConfirm ) {
 105                         $this->showForm( wfMsg( 'locknoconfirm' ) );
 106                         return;
 107                 }
 108
 109                 wfSuppressWarnings();
 110                 $res = unlink( $wgReadOnlyFile );
 111                 wfRestoreWarnings();
 112
 113                 if ( !$res ) {
 114                         $wgOut->showFileDeleteError( $wgReadOnlyFile );
 115                         return;
 116                 }
 117
 118                 $wgOut->redirect( $this->getTitle()->getFullURL( 'action=success' ) );
 119         }
 120
 121         private function showSuccess() {
 122                 global $wgOut;
 123
 124                 $wgOut->setSubtitle( wfMsg( 'unlockdbsuccesssub' ) );
 125                 $wgOut->addWikiMsg( 'unlockdbsuccesstext' );
 126         }
 127 }