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-rw-r--r--admin/include/functions_metadata.php363
1 files changed, 363 insertions, 0 deletions
diff --git a/admin/include/functions_metadata.php b/admin/include/functions_metadata.php
new file mode 100644
index 000000000..9a7d45193
--- /dev/null
+++ b/admin/include/functions_metadata.php
@@ -0,0 +1,363 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | functions_metadata.php |
+// +-----------------------------------------------------------------------+
+// | application : PhpWebGallery <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. |
+// +-----------------------------------------------------------------------+
+
+/**
+ * returns informations from IPTC metadata, mapping is done at the beginning
+ * of the function
+ *
+ * @param string $filename
+ * @return array
+ */
+function get_iptc_data($filename)
+{
+ global $getimagesize_time;
+
+ $map = array(
+ 'keywords' => '2#025',
+ 'date_creation' => '2#055',
+ 'author' => '2#122',
+ 'name' => '2#085',
+ 'comment' => '2#120'
+ );
+ $datefields = array('date_creation', 'date_available');
+
+ $result = array();
+
+ // Read IPTC data
+ $iptc = array();
+
+ $start = get_moment();
+ getimagesize($filename, &$imginfo);
+ $getimagesize_time+= get_moment() - $start;
+
+ if (is_array($imginfo) and isset($imginfo['APP13']))
+ {
+ $iptc = iptcparse($imginfo['APP13']);
+ if (is_array($iptc))
+ {
+ $rmap = array_flip($map);
+ foreach (array_keys($rmap) as $iptc_key)
+ {
+ if (isset($iptc[$iptc_key][0]) and $value = $iptc[$iptc_key][0])
+ {
+ // strip leading zeros (weird Kodak Scanner software)
+ while ($value[0] == chr(0))
+ {
+ $value = substr($value, 1);
+ }
+ // remove binary nulls
+ $value = str_replace(chr(0x00), ' ', $value);
+
+ foreach (array_keys($map, $iptc_key) as $pwg_key)
+ {
+ if (in_array($pwg_key, $datefields))
+ {
+ if ( preg_match('/(\d{4})(\d{2})(\d{2})/', $value, $matches))
+ {
+ $value = $matches[1].'-'.$matches[2].'-'.$matches[3];
+ }
+ else
+ {
+ continue;
+ }
+ }
+ $result[$pwg_key] = $value;
+ }
+ }
+ }
+ }
+ }
+ return $result;
+}
+
+function update_metadata($files)
+{
+ global $conf;
+
+// $conf['use_iptc'] = true;
+// $conf['use_exif'] = true;
+
+ $inserts = array();
+
+ foreach ($files as $id => $file)
+ {
+ $insert = array();
+ $insert['id'] = $id;
+ $insert['filesize'] = floor(filesize($file)/1024);
+
+ if ($image_size = @getimagesize($file))
+ {
+ $insert['width'] = $image_size[0];
+ $insert['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);
+ $insert['date_creation'] =
+ "'".$matches[1].'-'.$matches[2].'-'.$matches[3]."'";
+ }
+ }
+ }
+
+ if ($conf['use_iptc'])
+ {
+ $iptc = get_iptc_data($file);
+ foreach (array_keys($iptc) as $key)
+ {
+ $insert[$key] = "'".addslashes($iptc[$key])."'";
+ }
+ }
+
+ $insert['date_metadata_update'] = CURRENT_DATE;
+
+ array_push($inserts, $insert);
+ }
+
+ if (count($inserts) > 0)
+ {
+ $dbfields = array(
+ 'id','filesize','width','height','name','author','comment'
+ ,'date_creation','keywords','date_metadata_update'
+ );
+
+ // depending on the MySQL version, we use the multi table update or N
+ // update queries
+ $query = 'SELECT VERSION() AS version;';
+ $row = mysql_fetch_array(mysql_query($query));
+ if (version_compare($row['version'],'4.0.4') < 0)
+ {
+ // MySQL is prior to version 4.0.4, multi table update feature is not
+ // available
+ echo 'MySQL is prior to version 4.0.4, multi table update feature is not available<br />';
+ foreach ($inserts as $insert)
+ {
+ $query = '
+UPDATE '.IMAGES_TABLE.'
+ SET ';
+ foreach (array_diff(array_keys($insert),array('id')) as $num => $key)
+ {
+ if ($num > 1)
+ {
+ $query.= ', ';
+ }
+ $query.= $key.' = '.$insert[$key];
+ }
+ $query.= '
+ WHERE id = '.$insert['id'].'
+;';
+ // echo '<pre>'.$query.'</pre>';
+ mysql_query($query);
+ }
+ }
+ else
+ {
+ // creation of the temporary table
+ $query = '
+DESCRIBE '.IMAGES_TABLE.'
+;';
+ $result = mysql_query($query);
+ $columns = array();
+ while ($row = mysql_fetch_array($result))
+ {
+ if (in_array($row['Field'], $dbfields))
+ {
+ $column = $row['Field'];
+ $column.= ' '.$row['Type'];
+ if (!isset($row['Null']) or $row['Null'] == '')
+ {
+ $column.= ' NOT NULL';
+ }
+ if (isset($row['Default']))
+ {
+ $column.= " default '".$row['Default']."'";
+ }
+ array_push($columns, $column);
+ }
+ }
+ $query = '
+CREATE TEMPORARY TABLE '.IMAGE_METADATA_TABLE.'
+(
+'.implode(",\n", $columns).',
+PRIMARY KEY (id)
+)
+;';
+ // echo '<pre>'.$query.'</pre>';
+ mysql_query($query);
+ // inserts all found pictures
+ $query = '
+INSERT INTO '.IMAGE_METADATA_TABLE.'
+ ('.implode(',', $dbfields).')
+ VALUES
+ ';
+ foreach ($inserts as $insert_id => $insert)
+ {
+ $query.= '
+';
+ if ($insert_id > 0)
+ {
+ $query.= ',';
+ }
+ $query.= '(';
+ foreach ($dbfields as $field_id => $dbfield)
+ {
+ if ($field_id > 0)
+ {
+ $query.= ',';
+ }
+
+ if (!isset($insert[$dbfield]) or $insert[$dbfield] == '')
+ {
+ $query.= 'NULL';
+ }
+ else
+ {
+ $query.= $insert[$dbfield];
+ }
+ }
+ $query.=')';
+ }
+ $query.= '
+;';
+ // echo '<pre>'.$query.'</pre>';
+ mysql_query($query);
+ // update of images table by joining with temporary table
+ $query = '
+UPDATE '.IMAGES_TABLE.' AS images, '.IMAGE_METADATA_TABLE.' as metadata
+ SET '.implode("\n , ",
+ array_map(
+ create_function('$s', 'return "images.$s = metadata.$s";')
+ , array_diff($dbfields, array('id')))).'
+ WHERE images.id = metadata.id
+;';
+ echo '<pre>'.$query.'</pre>';
+ mysql_query($query);
+ }
+ }
+}
+
+/**
+ * returns an array associating element id (images.id) with its complete
+ * path in the filesystem
+ *
+ * @param int id_uppercat
+ * @param boolean recursive ?
+ * @param boolean only newly added files ?
+ * @return array
+ */
+function get_filelist($category_id = '', $recursive = false, $only_new = false)
+{
+ $files = array();
+
+ $query = '
+SELECT id, dir
+ FROM '.CATEGORIES_TABLE.'
+;';
+ $result = mysql_query($query);
+ $cat_dirs = array();
+ while ($row = mysql_fetch_array($result))
+ {
+ $cat_dirs[$row['id']] = $row['dir'];
+ }
+
+ // filling $uppercats_array : to each category id the uppercats list is
+ // associated
+ $uppercats_array = array();
+
+ $query = '
+SELECT id, uppercats
+ FROM '.CATEGORIES_TABLE;
+ if (is_numeric($category_id))
+ {
+ if ($recursive)
+ {
+ $query.= '
+ WHERE uppercats REGEXP \'(^|,)'.$category_id.'(,|$)\'
+';
+ }
+ else
+ {
+ $query.= '
+ WHERE id = '.$category_id.'
+';
+ }
+ }
+ $query.= '
+;';
+ $result = mysql_query($query);
+ while ($row = mysql_fetch_array($result))
+ {
+ $uppercats_array[$row['id']] = $row['uppercats'];
+ }
+
+ $query = '
+SELECT galleries_url
+ FROM '.SITES_TABLE.'
+ WHERE id = 1
+';
+ $row = mysql_fetch_array(mysql_query($query));
+ $basedir = $row['galleries_url'];
+
+ // filling $cat_fulldirs
+ $cat_fulldirs = array();
+ foreach ($uppercats_array as $cat_id => $uppercats)
+ {
+ $uppercats = str_replace(',', '/', $uppercats);
+ $cat_fulldirs[$cat_id] = $basedir.preg_replace('/(\d+)/e',
+ "\$cat_dirs['$1']",
+ $uppercats);
+ }
+
+ $query = '
+SELECT id, file, storage_category_id
+ FROM '.IMAGES_TABLE.'
+ WHERE storage_category_id IN ('.implode(','
+ ,array_keys($uppercats_array)).')';
+ if ($only_new)
+ {
+ $query.= '
+ AND date_metadata_update IS NULL
+';
+ }
+ $query.= '
+;';
+ $result = mysql_query($query);
+ while ($row = mysql_fetch_array($result))
+ {
+ $files[$row['id']]
+ = $cat_fulldirs[$row['storage_category_id']].'/'.$row['file'];
+ }
+
+ return $files;
+}
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 16:57:42 +0000