inc/Action/Redirect.php

   1 <?php
   2
   3 namespace dokuwiki\Action;
   4
   5 use dokuwiki\Action\Exception\ActionAbort;
   6 use dokuwiki\Extension\Event;
   7
   8 /**
   9  * Class Redirect
  10  *
  11  * Used to redirect to the current page with the last edited section as a target if found
  12  *
  13  * @package dokuwiki\Action
  14  */
  15 class Redirect extends AbstractAliasAction
  16 {
  17     /**
  18      * Redirect to the show action, trying to jump to the previously edited section
  19      *
  20      * @triggers ACTION_SHOW_REDIRECT
  21      * @throws ActionAbort
  22      */
  23     public function preProcess()
  24     {
  25         global $PRE;
  26         global $TEXT;
  27         global $INPUT;
  28         global $ID;
  29         global $ACT;
  30
  31         $opts = ['id' => $ID, 'preact' => $ACT];
  32         //get section name when coming from section edit
  33         if ($INPUT->has('hid')) {
  34             // Use explicitly transmitted header id
  35             $opts['fragment'] = $INPUT->str('hid');
  36         } elseif ($PRE && preg_match('/^\s*==+([^=\n]+)/', $TEXT, $match)) {
  37             // Fallback to old mechanism
  38             $check = false; //Byref
  39             $opts['fragment'] = sectionID($match[0], $check);
  40         }
  41
  42         // execute the redirect
  43         Event::createAndTrigger('ACTION_SHOW_REDIRECT', $opts, [$this, 'redirect']);
  44
  45         // should never be reached
  46         throw new ActionAbort('show');
  47     }
  48
  49     /**
  50      * Execute the redirect
  51      *
  52      * Default action for ACTION_SHOW_REDIRECT
  53      *
  54      * @param array $opts id and fragment for the redirect and the preact
  55      */
  56     public function redirect($opts)
  57     {
  58         $go = wl($opts['id'], '', true, '&');
  59         if (isset($opts['fragment'])) $go .= '#' . $opts['fragment'];
  60
  61         //show it
  62         send_redirect($go);
  63     }
  64 }