source: trunk/action.php @ 12855

Last change on this file since 12855 was 12855, checked in by rvelices, 9 years ago

feature 2548 multisize - improved picture.php display (original...) + code cleanup

  • Property svn:eol-style set to LF
File size: 5.5 KB
Line 
1<?php
2// +-----------------------------------------------------------------------+
3// | Piwigo - a PHP based photo gallery                                    |
4// +-----------------------------------------------------------------------+
5// | Copyright(C) 2008-2011 Piwigo Team                  http://piwigo.org |
6// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
7// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
8// +-----------------------------------------------------------------------+
9// | This program is free software; you can redistribute it and/or modify  |
10// | it under the terms of the GNU General Public License as published by  |
11// | the Free Software Foundation                                          |
12// |                                                                       |
13// | This program is distributed in the hope that it will be useful, but   |
14// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
15// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
16// | General Public License for more details.                              |
17// |                                                                       |
18// | You should have received a copy of the GNU General Public License     |
19// | along with this program; if not, write to the Free Software           |
20// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
21// | USA.                                                                  |
22// +-----------------------------------------------------------------------+
23
24define('PHPWG_ROOT_PATH','./');
25include_once(PHPWG_ROOT_PATH.'include/common.inc.php');
26
27// Check Access and exit when user status is not ok
28check_status(ACCESS_GUEST);
29
30function guess_mime_type($ext)
31{
32  switch ( strtolower($ext) )
33  {
34    case "jpe": case "jpeg":
35    case "jpg": $ctype="image/jpeg"; break;
36    case "png": $ctype="image/png"; break;
37    case "gif": $ctype="image/gif"; break;
38    case "tiff":
39    case "tif": $ctype="image/tiff"; break;
40    case "txt": $ctype="text/plain"; break;
41    case "html":
42    case "htm": $ctype="text/html"; break;
43    case "xml": $ctype="text/xml"; break;
44    case "pdf": $ctype="application/pdf"; break;
45    case "zip": $ctype="application/zip"; break;
46    case "ogg": $ctype="application/ogg"; break;
47    default: $ctype="application/octet-stream";
48  }
49  return $ctype;
50}
51
52function do_error( $code, $str )
53{
54  set_status_header( $code );
55  echo $str ;
56  exit();
57}
58
59
60if (!isset($_GET['id'])
61    or !is_numeric($_GET['id'])
62    or !isset($_GET['part'])
63    or !in_array($_GET['part'], array('e','r') ) )
64{
65  do_error(400, 'Invalid request - id/part');
66}
67
68$query = '
69SELECT * FROM '. IMAGES_TABLE.'
70  WHERE id='.$_GET['id'].'
71;';
72
73$result = pwg_query($query);
74$element_info = pwg_db_fetch_assoc($result);
75if ( empty($element_info) )
76{
77  do_error(404, 'Requested id not found');
78}
79
80// $filter['visible_categories'] and $filter['visible_images']
81// are not used because it's not necessary (filter <> restriction)
82$query='
83SELECT id
84  FROM '.CATEGORIES_TABLE.'
85    INNER JOIN '.IMAGE_CATEGORY_TABLE.' ON category_id = id
86  WHERE image_id = '.$_GET['id'].'
87'.get_sql_condition_FandF(
88  array(
89      'forbidden_categories' => 'category_id',
90      'forbidden_images' => 'image_id',
91    ),
92  '    AND'
93  ).'
94  LIMIT 1
95;';
96if ( pwg_db_num_rows(pwg_query($query))<1 )
97{
98  do_error(401, 'Access denied');
99}
100
101include_once(PHPWG_ROOT_PATH.'include/functions_picture.inc.php');
102$file='';
103switch ($_GET['part'])
104{
105  case 'e':
106    if ( $user['enabled_high']!='true' )
107    {
108      do_error(401, 'Access denied h');
109    }
110    $file = get_element_path($element_info);
111    break;
112  case 'r':
113    $file = original_to_representative( get_element_path($element_info), $element_info['representative_ext'] );
114    break;
115}
116
117if ( empty($file) )
118{
119  do_error(404, 'Requested file not found');
120}
121
122if ($_GET['part'] == 'h') {
123  pwg_log($_GET['id'], 'high');
124}
125else if ($_GET['part'] == 'e')
126{
127  pwg_log($_GET['id'], 'other');
128}
129
130$http_headers = array();
131
132$ctype = null;
133if (!url_is_remote($file))
134{
135  if ( !@is_readable($file) )
136  {
137    do_error(404, "Requested file not found - $file");
138  }
139  $http_headers[] = 'Content-Length: '.@filesize($file);
140  if ( function_exists('mime_content_type') )
141  {
142    $ctype = mime_content_type($file);
143  }
144
145  $gmt_mtime = gmdate('D, d M Y H:i:s', filemtime($file)).' GMT';
146  $http_headers[] = 'Last-Modified: '.$gmt_mtime;
147
148  // following lines would indicate how the client should handle the cache
149  /* $max_age=300;
150  $http_headers[] = 'Expires: '.gmdate('D, d M Y H:i:s', time()+$max_age).' GMT';
151  // HTTP/1.1 only
152  $http_headers[] = 'Cache-Control: private, must-revalidate, max-age='.$max_age;*/
153
154  if ( isset( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) )
155  {
156    set_status_header(304);
157    foreach ($http_headers as $header)
158    {
159      header( $header );
160    }
161    exit();
162  }
163}
164
165if (!isset($ctype))
166{ // give it a guess
167  $ctype = guess_mime_type( get_extension($file) );
168}
169
170$http_headers[] = 'Content-Type: '.$ctype;
171
172if (isset($_GET['download']))
173{
174  $http_headers[] = 'Content-Disposition: attachment; filename="'.$element_info['file'].'";';
175  $http_headers[] = 'Content-Transfer-Encoding: binary';
176}
177else
178{
179  $http_headers[] = 'Content-Disposition: inline; filename="'
180            .basename($file).'";';
181}
182
183foreach ($http_headers as $header)
184{
185  header( $header );
186}
187
188// Looking at the safe_mode configuration for execution time
189if (ini_get('safe_mode') == 0)
190{
191  @set_time_limit(0);
192}
193
194@readfile($file);
195
196?>
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