piwigo/include/functions_metadata.inc.php
rvelices 7397c8d4c2 - better code in filter.inc.php (remove unused code + filter is not reseted
when going to an unfiltered page)
- removed unnecessary filtered pages from config_default (especially admin !!!)
- removed flat recent category icon from irrelevant pages
- mysterious code comment appeared in picture.php

git-svn-id: http://piwigo.org/svn/trunk@1711 68402e56-0260-453c-a942-63ccdbb3a9ee
2007-01-11 05:10:16 +00:00

136 lines
No EOL
3.8 KiB
PHP

<?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 : $Id$
// | 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, $map)
{
$result = array();
$imginfo = array();
if (false == @getimagesize($filename, $imginfo) )
{
return $result;
}
if (isset($imginfo['APP13']))
{
$iptc = iptcparse($imginfo['APP13']);
if (is_array($iptc))
{
$rmap = array_flip($map);
foreach (array_keys($rmap) as $iptc_key)
{
if (isset($iptc[$iptc_key][0]))
{
if ($iptc_key == '2#025')
{
$value = implode(',',
array_map('clean_iptc_value',$iptc[$iptc_key]));
}
else
{
$value = clean_iptc_value($iptc[$iptc_key][0]);
}
foreach (array_keys($map, $iptc_key) as $pwg_key)
{
$result[$pwg_key] = $value;
}
}
}
}
}
return $result;
}
/**
* return a cleaned IPTC value
*
* @param string value
* @return string
*/
function clean_iptc_value($value)
{
// strip leading zeros (weird Kodak Scanner software)
while ( isset($value[0]) and $value[0] == chr(0))
{
$value = substr($value, 1);
}
// remove binary nulls
$value = str_replace(chr(0x00), ' ', $value);
return $value;
}
/**
* returns informations from EXIF metadata, mapping is done at the beginning
* of the function
*
* @param string $filename
* @return array
*/
function get_exif_data($filename, $map)
{
$result = array();
if (!function_exists('read_exif_data'))
{
die('Exif extension not available, admin should disable exif use');
}
// Read EXIF data
if ($exif = @read_exif_data($filename))
{
foreach ($map as $key => $field)
{
if (strpos($field, ';') === false)
{
if (isset($exif[$field]))
{
$result[$key] = $exif[$field];
}
}
else
{
$tokens = explode(';', $field);
if (isset($exif[$tokens[0]][$tokens[1]]))
{
$result[$key] = $exif[$tokens[0]][$tokens[1]];
}
}
}
}
return $result;
}
?>