aboutsummaryrefslogtreecommitdiffstats
path: root/admin/include/functions_metadata.php
blob: 8e2d27a16f757794efd04cb7668f1b8239313f55 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
<?php
// +-----------------------------------------------------------------------+
// | PhpWebGallery - a PHP based picture gallery                           |
// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
// +-----------------------------------------------------------------------+
// | branch        : BSF (Best So Far)
// | file          : $RCSfile$
// | last update   : $Date$
// | last modifier : $Author$
// | revision      : $Revision$
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify  |
// | it under the terms of the GNU General Public License as published by  |
// | the Free Software Foundation                                          |
// |                                                                       |
// | This program is distributed in the hope that it will be useful, but   |
// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
// | General Public License for more details.                              |
// |                                                                       |
// | You should have received a copy of the GNU General Public License     |
// | along with this program; if not, write to the Free Software           |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA.                                                                  |
// +-----------------------------------------------------------------------+

include_once(PHPWG_ROOT_PATH.'/include/functions_metadata.inc.php');

function get_sync_iptc_data($file)
{
  global $conf;
  
  $map = $conf['use_iptc_mapping'];
  $datefields = array('date_creation', 'date_available');
  
  $iptc = get_iptc_data($file, $map);

  foreach ($iptc as $pwg_key => $value)
  {
    if (in_array($pwg_key, $datefields))
    {
      if (preg_match('/(\d{4})(\d{2})(\d{2})/', $value, $matches))
      {
        $iptc[$pwg_key] = $matches[1].'-'.$matches[2].'-'.$matches[3];
      }
    }
  }

  if (isset($iptc['keywords']))
  {
    // keywords separator is the comma, nothing else. Allowed characters in
    // keywords : [A-Za-z0-9], "-" and "_". All other characters will be
    // considered as separators
    $iptc['keywords'] = preg_replace('/[^\w-]+/', ',', $iptc['keywords']);
    $iptc['keywords'] = preg_replace('/^,+|,+$/', '', $iptc['keywords']);
  }

  return $iptc;
}

function update_metadata($files)
{
  global $conf;

  if (!defined('CURRENT_DATE'))
  {
    define('CURRENT_DATE', date('Y-m-d'));
  }

  $datas = array();

  foreach ($files as $id => $file)
  {
    $data = array();
    $data['id'] = $id;
    $data['filesize'] = floor(filesize($file)/1024);
  
    if ($image_size = @getimagesize($file))
    {
      $data['width'] = $image_size[0];
      $data['height'] = $image_size[1];
    }
  
    if ($conf['use_exif'])
    {
      if ($exif = @read_exif_data($file))
      {
        if (isset($exif['DateTime']))
        {
          preg_match('/^(\d{4}).(\d{2}).(\d{2})/',$exif['DateTime'],$matches);
          $data['date_creation'] = $matches[1].'-'.$matches[2].'-'.$matches[3];
        }
      }
    }

    if ($conf['use_iptc'])
    {
      $iptc = get_sync_iptc_data($file);
      if (count($iptc) > 0)
      {
        foreach (array_keys($iptc) as $key)
        {
          $data[$key] = addslashes($iptc[$key]);
        }
      }
    }

    $data['date_metadata_update'] = CURRENT_DATE;

    array_push($datas, $data);
  }
  
  if (count($datas) > 0)
  {
    $update_fields = array('filesize','width','height','date_metadata_update');
    if ($conf['use_exif'])
    {
      array_push($update_fields, 'date_creation');
    }
    if ($conf['use_iptc'])
    {
      $update_fields = array_merge($update_fields,
                                   array_keys($conf['use_iptc_mapping']));
    }
    
    $fields = array('primary' => array('id'),
                    'update'  => array_unique($update_fields));
    mass_updates(IMAGES_TABLE, $fields, $datas);
  }
}

/**
 * returns an array associating element id (images.id) with its complete
 * path in the filesystem
 *
 * @param int id_uppercat
 * @param boolean recursive ?
 * @param boolean only newly added files ?
 * @return array
 */
function get_filelist($category_id = '', $recursive = false, $only_new = false)
{
  // filling $cat_ids : all categories required
  $cat_ids = array();
  
  $query = '
SELECT id
  FROM '.CATEGORIES_TABLE.'
  WHERE site_id = 1
    AND dir IS NOT NULL';
  if (is_numeric($category_id))
  {
    if ($recursive)
    {
      $query.= '
    AND uppercats REGEXP \'(^|,)'.$category_id.'(,|$)\'
';
    }
    else
    {
      $query.= '
    AND id = '.$category_id.'
';
    }
  }
  $query.= '
;';
  $result = pwg_query($query);
  while ($row = mysql_fetch_array($result))
  {
    array_push($cat_ids, $row['id']);
  }

  if (count($cat_ids) == 0)
  {
    return array();
  }

  $files = array();

  $query = '
SELECT id, path
  FROM '.IMAGES_TABLE.'
  WHERE storage_category_id IN ('.implode(',', $cat_ids).')';
  if ($only_new)
  {
    $query.= '
    AND date_metadata_update IS NULL
';
  }
  $query.= '
;';
  $result = pwg_query($query);
  while ($row = mysql_fetch_array($result))
  {
    $files[$row['id']] = $row['path'];
  }
  
  return $files;
}
?>