includes/specials/SpecialPermanentLink.php

   1 <?php
   2 /**
   3  * Redirect from Special:PermanentLink/### to index.php?oldid=###.
   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  * Redirect from Special:PermanentLink/### to index.php?oldid=###.
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class SpecialPermanentLink extends RedirectSpecialPage {
  30         public function __construct() {
  31                 parent::__construct( 'PermanentLink' );
  32                 $this->mAllowedRedirectParams = [];
  33         }
  34
  35         /**
  36          * @param string|null $subpage
  37          * @return Title|bool
  38          */
  39         public function getRedirect( $subpage ) {
  40                 $subpage = intval( $subpage );
  41                 if ( $subpage === 0 ) {
  42                         return false;
  43                 }
  44                 $this->mAddedRedirectParams['oldid'] = $subpage;
  45
  46                 return true;
  47         }
  48
  49         protected function showNoRedirectPage() {
  50                 $this->addHelpLink( 'Help:PermanentLink' );
  51                 $this->setHeaders();
  52                 $this->outputHeader();
  53                 $this->showForm();
  54         }
  55
  56         private function showForm() {
  57                 $form = HTMLForm::factory( 'ooui', [
  58                         'revid' => [
  59                                 'type' => 'int',
  60                                 'name' => 'revid',
  61                                 'label-message' => 'permanentlink-revid',
  62                         ],
  63                 ], $this->getContext(), 'permanentlink' );
  64                 $form->setSubmitTextMsg( 'permanentlink-submit' );
  65                 $form->setSubmitCallback( [ $this, 'onFormSubmit' ] );
  66                 $form->show();
  67         }
  68
  69         public function onFormSubmit( $formData ) {
  70                 $revid = $formData['revid'];
  71                 $title = $this->getPageTitle( $revid ?: null );
  72                 $url = $title->getFullUrlForRedirect();
  73                 $this->getOutput()->redirect( $url );
  74         }
  75
  76         public function isListed() {
  77                 return true;
  78         }
  79
  80         protected function getGroupName() {
  81                 return 'redirects';
  82         }
  83 }