plugins/gallery/fetcher.php
author Dan
Sat, 16 Feb 2008 23:42:32 -0500 (2008-02-17)
changeset 22 593180f9eea9
parent 9 ebd7003e73c6
child 25 d9f37d2ea2cf
permissions -rw-r--r--
... Except now the IE hack broke Safari and Gran Paradiso.
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<?php
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/*
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 * Snapr
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 * Version 0.1 beta 1
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 * Copyright (C) 2007 Dan Fuhry
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 *
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 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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 */
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##
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## IMAGE FILE FETCHER
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##
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$plugins->attachHook('base_classes_initted', '
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  global $paths;
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    $paths->add_page(Array(
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      \'name\'=>\'Image fetcher pagelet\',
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      \'urlname\'=>\'GalleryFetcher\',
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      \'namespace\'=>\'Special\',
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      \'special\'=>0,\'visible\'=>0,\'comments_on\'=>0,\'protected\'=>1,\'delvotes\'=>0,\'delvote_ips\'=>\'\',
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      ));
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  ');
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function page_Special_GalleryFetcher()
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{
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  global $db, $session, $paths, $template, $plugins; // Common objects
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  $type = $paths->getParam(0);
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  if ( !in_array($type, array('thumb', 'preview', 'full')) )
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  {
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    die('Hack attempt');
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  }
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  $id = intval($paths->getParam(1));
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  if ( !$id )
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  {
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    die('Hack attempt');
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  }
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  // Permissions object
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  $perms = $session->fetch_page_acl($id, 'Gallery');
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  if ( !$perms->get_permissions('gal_full_res') && $type == 'full' )
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  {
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    $type = 'preview';
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  }
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  $q = $db->sql_query('SELECT img_title, img_filename, img_time_mod, is_folder FROM '.table_prefix.'gallery WHERE img_id=' . $id . ';');
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  if ( !$q )
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    $db->_die();
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  if ( $db->numrows() < 1 )
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    die('Image not found');
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  $row = $db->fetchrow();
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  switch ( $type )
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  {
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    case 'thumb':
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      $filename = ENANO_ROOT . '/cache/' . $row['img_filename'] . '-thumb.jpg';
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      $mimetype = 'image/jpeg';
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      $ext = "jpg";
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      break;
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    case 'preview':
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      $filename = ENANO_ROOT . '/cache/' . $row['img_filename'] . '-preview.jpg';
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      $mimetype = 'image/jpeg';
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      $ext = "jpg";
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      break;
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    case 'full':
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      $filename = ENANO_ROOT . '/files/' . $row['img_filename'];
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      $ext = get_file_extension($filename);
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      switch($ext)
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      {
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        case 'png': $mimetype = 'image/png'; break;
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        case 'gif': $mimetype = 'image/gif'; break;
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        case 'bmp': $mimetype = 'image/bmp'; break;
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        case 'jpg': case 'jpeg': $mimetype = 'image/jpeg'; break;
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        case 'tif': case 'tiff': $mimetype = 'image/tiff'; break;
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        default: $mimetype = 'application/octet-stream';
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      }
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      break;
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    default:
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      die('PHP...insane...');
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      break;
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  }
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  // Make sure we have permission to read this image
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  if ( !$perms->get_permissions('read') )
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  {
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    $filename = ENANO_ROOT . '/plugins/gallery/denied.png';
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    $mimetype = 'image/png';
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  }
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  if ( $row['is_folder'] == '1' )
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  {
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    $filename = ENANO_ROOT . '/plugins/gallery/folder.png';
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    $mimetype = 'image/png';
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  }
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  if ( !file_exists($filename) )
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    die('Can\'t retrieve image file ' . $filename);
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  $contents = file_get_contents($filename);
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  header('Content-type: '   . $mimetype);
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  header('Content-length: ' . strlen($contents));
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  header('Last-Modified: '  . date('r', $row['img_time_mod']));
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  if ( isset($_GET['download']) )
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  {
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    // determine an appropriate non-revealing filename
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    $filename = str_replace(' ', '_', $row['img_title']);
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    $filename = preg_replace('/([^\w\._-]+)/', '-', $filename);
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    $filename = trim($filename, '-');
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    $filename .= ".$ext";
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    header('Content-disposition: attachment; filename=' . $filename);
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  }
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  echo $contents;
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  gzip_output();
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  $db->close();
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  exit;
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}
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?>