inc/Action/Revert.php

   1 <?php
   2
   3 namespace dokuwiki\Action;
   4
   5 use dokuwiki\Action\Exception\ActionAbort;
   6 use dokuwiki\Action\Exception\ActionException;
   7
   8 /**
   9  * Class Revert
  10  *
  11  * Quick revert to an old revision
  12  *
  13  * @package dokuwiki\Action
  14  */
  15 class Revert extends AbstractUserAction
  16 {
  17     /** @inheritdoc */
  18     public function minimumPermission()
  19     {
  20         return AUTH_EDIT;
  21     }
  22
  23     /**
  24      *
  25      * @inheritdoc
  26      * @throws ActionAbort
  27      * @throws ActionException
  28      * @todo check for writability of the current page ($INFO might do it wrong and check the attic version)
  29      */
  30     public function preProcess()
  31     {
  32         if (!checkSecurityToken()) throw new ActionException();
  33
  34         global $ID;
  35         global $REV;
  36         global $lang;
  37
  38         // when no revision is given, delete current one
  39         // FIXME this feature is not exposed in the GUI currently
  40         $text = '';
  41         $sum = $lang['deleted'];
  42         if ($REV) {
  43             $text = rawWiki($ID, $REV);
  44             if (!$text) throw new ActionException(); //something went wrong
  45             $sum = sprintf($lang['restored'], dformat($REV));
  46         }
  47
  48         // spam check
  49         if (checkwordblock($text)) {
  50             msg($lang['wordblock'], -1);
  51             throw new ActionException('edit');
  52         }
  53
  54         saveWikiText($ID, $text, $sum, false);
  55         msg($sum, 1);
  56         $REV = '';
  57
  58         // continue with draftdel -> redirect -> show
  59         throw new ActionAbort('draftdel');
  60     }
  61 }