includes/specials/SpecialFilepath.php

   1 <?php
   2 /**
   3  * Implements Special:Filepath
   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  * A special page that redirects to the URL of a given file
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class SpecialFilepath extends SpecialPage {
  30
  31         function __construct() {
  32                 parent::__construct( 'Filepath' );
  33         }
  34
  35         function execute( $par ) {
  36                 global $wgRequest, $wgOut;
  37
  38                 $this->setHeaders();
  39                 $this->outputHeader();
  40
  41                 $file = !is_null( $par ) ? $par : $wgRequest->getText( 'file' );
  42
  43                 $title = Title::makeTitleSafe( NS_FILE, $file );
  44
  45                 if ( ! $title instanceof Title || $title->getNamespace() != NS_FILE ) {
  46                         $this->showForm( $title );
  47                 } else {
  48                         $file = wfFindFile( $title );
  49                         if ( $file && $file->exists() ) {
  50                                 $url = $file->getURL();
  51                                 $width = $wgRequest->getInt( 'width', -1 );
  52                                 $height = $wgRequest->getInt( 'height', -1 );
  53                                 if ( $width != -1 ) {
  54                                         $mto = $file->transform( array( 'width' => $width, 'height' => $height ) );
  55                                         if ( $mto && !$mto->isError() ) {
  56                                                 $url = $mto->getURL();
  57                                         }
  58                                 }
  59                                 $wgOut->redirect( $url );
  60                         } else {
  61                                 $wgOut->setStatusCode( 404 );
  62                                 $this->showForm( $title );
  63                         }
  64                 }
  65         }
  66
  67         function showForm( $title ) {
  68                 global $wgOut, $wgScript;
  69
  70                 $wgOut->addHTML(
  71                         Html::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'id' => 'specialfilepath' ) ) .
  72                         Html::openElement( 'fieldset' ) .
  73                         Html::element( 'legend', null, wfMsg( 'filepath' ) ) .
  74                         Html::hidden( 'title', $this->getTitle()->getPrefixedText() ) .
  75                         Xml::inputLabel( wfMsg( 'filepath-page' ), 'file', 'file', 25, is_object( $title ) ? $title->getText() : '' ) . ' ' .
  76                         Xml::submitButton( wfMsg( 'filepath-submit' ) ) . "\n" .
  77                         Html::closeElement( 'fieldset' ) .
  78                         Html::closeElement( 'form' )
  79                 );
  80         }
  81 }