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