includes/SpecialLockdb.php

   1 <?php
   2 /**
   3  *
   4  * @package MediaWiki
   5  * @subpackage SpecialPage
   6  */
   7
   8 /**
   9  * Constructor
  10  */
  11 function wfSpecialLockdb() {
  12         global $wgUser, $wgOut, $wgRequest;
  13
  14         if( !$wgUser->isAllowed( 'siteadmin' ) ) {
  15                 $wgOut->permissionRequired( 'siteadmin' );
  16                 return;
  17         }
  18
  19         # If the lock file isn't writable, we can do sweet bugger all
  20         global $wgReadOnlyFile;
  21         if( !is_writable( dirname( $wgReadOnlyFile ) ) ) {
  22                 DBLockForm::notWritable();
  23                 return;
  24         }
  25
  26         $action = $wgRequest->getVal( 'action' );
  27         $f = new DBLockForm();
  28
  29         if ( 'success' == $action ) {
  30                 $f->showSuccess();
  31         } else if ( 'submit' == $action && $wgRequest->wasPosted() &&
  32                 $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ) ) ) {
  33                 $f->doSubmit();
  34         } else {
  35                 $f->showForm( '' );
  36         }
  37 }
  38
  39 /**
  40  *
  41  * @package MediaWiki
  42  * @subpackage SpecialPage
  43  */
  44 class DBLockForm {
  45         var $reason = '';
  46
  47         function DBLockForm() {
  48                 global $wgRequest;
  49                 $this->reason = $wgRequest->getText( 'wpLockReason' );
  50         }
  51
  52         function showForm( $err ) {
  53                 global $wgOut, $wgUser;
  54
  55                 $wgOut->setPagetitle( wfMsg( 'lockdb' ) );
  56                 $wgOut->addWikiText( wfMsg( 'lockdbtext' ) );
  57
  58                 if ( "" != $err ) {
  59                         $wgOut->setSubtitle( wfMsg( 'formerror' ) );
  60                         $wgOut->addHTML( '<p class="error">' . htmlspecialchars( $err ) . "</p>\n" );
  61                 }
  62                 $lc = htmlspecialchars( wfMsg( 'lockconfirm' ) );
  63                 $lb = htmlspecialchars( wfMsg( 'lockbtn' ) );
  64                 $elr = htmlspecialchars( wfMsg( 'enterlockreason' ) );
  65                 $titleObj = SpecialPage::getTitleFor( 'Lockdb' );
  66                 $action = $titleObj->escapeLocalURL( 'action=submit' );
  67                 $reason = htmlspecialchars( $this->reason );
  68                 $token = htmlspecialchars( $wgUser->editToken() );
  69
  70                 $wgOut->addHTML( <<<END
  71 <form id="lockdb" method="post" action="{$action}">
  72 {$elr}:
  73 <textarea name="wpLockReason" rows="10" cols="60" wrap="virtual">{$reason}</textarea>
  74 <table border="0">
  75         <tr>
  76                 <td align="right">
  77                         <input type="checkbox" name="wpLockConfirm" />
  78                 </td>
  79                 <td align="left">{$lc}</td>
  80         </tr>
  81         <tr>
  82                 <td>&nbsp;</td>
  83                 <td align="left">
  84                         <input type="submit" name="wpLock" value="{$lb}" />
  85                 </td>
  86         </tr>
  87 </table>
  88 <input type="hidden" name="wpEditToken" value="{$token}" />
  89 </form>
  90 END
  91 );
  92
  93         }
  94
  95         function doSubmit() {
  96                 global $wgOut, $wgUser, $wgLang, $wgRequest;
  97                 global $wgReadOnlyFile;
  98
  99                 if ( ! $wgRequest->getCheck( 'wpLockConfirm' ) ) {
 100                         $this->showForm( wfMsg( 'locknoconfirm' ) );
 101                         return;
 102                 }
 103                 $fp = @fopen( $wgReadOnlyFile, 'w' );
 104
 105                 if ( false === $fp ) {
 106                         # This used to show a file not found error, but the likeliest reason for fopen()
 107                         # to fail at this point is insufficient permission to write to the file...good old
 108                         # is_writable() is plain wrong in some cases, it seems...
 109                         $this->notWritable();
 110                         return;
 111                 }
 112                 fwrite( $fp, $this->reason );
 113                 fwrite( $fp, "\n<p>(by " . $wgUser->getName() . " at " .
 114                   $wgLang->timeanddate( wfTimestampNow() ) . ")\n" );
 115                 fclose( $fp );
 116
 117                 $titleObj = SpecialPage::getTitleFor( 'Lockdb' );
 118                 $wgOut->redirect( $titleObj->getFullURL( 'action=success' ) );
 119         }
 120
 121         function showSuccess() {
 122                 global $wgOut;
 123
 124                 $wgOut->setPagetitle( wfMsg( 'lockdb' ) );
 125                 $wgOut->setSubtitle( wfMsg( 'lockdbsuccesssub' ) );
 126                 $wgOut->addWikiText( wfMsg( 'lockdbsuccesstext' ) );
 127         }
 128
 129         public static function notWritable() {
 130                 global $wgOut;
 131                 $wgOut->errorPage( 'lockdb', 'lockfilenotwritable' );
 132         }
 133
 134 }
 135
 136 ?>