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<?php
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// +-----------------------------------------------------------------------+
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// | PhpWebGallery - a PHP based picture gallery |
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// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
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// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
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// +-----------------------------------------------------------------------+
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// | branch : BSF (Best So Far)
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// | file : $RCSfile: functions_metadata.inc.php,v $
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// | last update : $Date: 2005/01/07 23:10:51 $
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// | last modifier : $Author: plg $
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// | revision : $Revision: 1.4 $
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// +-----------------------------------------------------------------------+
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// | This program is free software; you can redistribute it and/or modify |
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// | it under the terms of the GNU General Public License as published by |
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// | the Free Software Foundation |
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// | |
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// | This program is distributed in the hope that it will be useful, but |
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// | WITHOUT ANY WARRANTY; without even the implied warranty of |
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// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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// | General Public License for more details. |
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// | |
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// | You should have received a copy of the GNU General Public License |
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// | along with this program; if not, write to the Free Software |
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// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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// | USA. |
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// +-----------------------------------------------------------------------+
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/**
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* returns informations from IPTC metadata, mapping is done at the beginning
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* of the function
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*
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* @param string $filename
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* @return array
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*/
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function get_iptc_data($filename, $map)
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{
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$result = array();
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// Read IPTC data
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$iptc = array();
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$imginfo = array();
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getimagesize($filename, $imginfo);
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if (isset($imginfo['APP13']))
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{
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$iptc = iptcparse($imginfo['APP13']);
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if (is_array($iptc))
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{
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$rmap = array_flip($map);
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foreach (array_keys($rmap) as $iptc_key)
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{
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if (isset($iptc[$iptc_key][0]))
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{
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if ($iptc_key == '2#025')
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{
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$value = implode(',',
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array_map('clean_iptc_value',$iptc[$iptc_key]));
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}
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else
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{
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$value = clean_iptc_value($iptc[$iptc_key][0]);
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}
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foreach (array_keys($map, $iptc_key) as $pwg_key)
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{
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$result[$pwg_key] = $value;
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}
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}
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}
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}
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}
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return $result;
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}
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/**
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* return a cleaned IPTC value
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*
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* @param string value
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* @return string
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*/
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function clean_iptc_value($value)
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{
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// strip leading zeros (weird Kodak Scanner software)
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while ($value[0] == chr(0))
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{
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$value = substr($value, 1);
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}
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// remove binary nulls
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$value = str_replace(chr(0x00), ' ', $value);
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return $value;
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}
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?>
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