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new DN sort function

This commit is contained in:
Roland Gruber 2011-04-25 17:56:06 +00:00
parent a82412004e
commit c6f8cb40eb
1 changed files with 66 additions and 1 deletions
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67
lam/lib/account.inc
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@ -4,7 +4,7 @@ $Id$
This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
Copyright (C) 2003 - 2006 Tilo Lutz
2009 - 2010 Roland Gruber
2009 - 2011 Roland Gruber
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
@ -615,6 +615,27 @@ function searchLDAP($suffix, $filter, $attributes) {
return $return;
}
/**
* Returns the given DN.
*
* @param String $dn DN
* @param array $attributes list of attributes to fetch
* @return array attributes or null if not found
*/
function ldapGetDN($dn, $attributes = array('dn')) {
$return = null;
$sr = @ldap_read($_SESSION['ldap']->server(), escapeDN($dn), 'objectClass=*', $attributes);
if ($sr) {
$entries = ldap_get_entries($_SESSION['ldap']->server(), $sr);
if ($entries) {
$return = cleanLDAPResult($entries);
$return = $return[0];
}
@ldap_free_result($sr);
}
return $return;
}
/**
* Returns the parameters for a StatusMessage of the last LDAP search.
*
@ -694,4 +715,48 @@ function getAbstractDN($dn) {
return implode(' > ', $parts);
}
/**
* Helper function to sort DNs.
*
* @param string $a first argument to compare
* @param string $b second argument to compare
* @return integer 0 if equal, 1 if $a is greater, -1 if $b is greater
*/
function compareDN($a, $b) {
// split DNs
$array_a = explode(",", $a);
$array_b = explode(",", $b);
$len_a = sizeof($array_a);
$len_b = sizeof($array_b);
// check how many parts to compare
$len = min($len_a, $len_b);
// compare from last part on
for ($i = 0; $i < $len; $i++) {
// get parts to compare
$part_a = strtolower($array_a[$len_a - $i - 1]);
$part_b = strtolower($array_b[$len_b - $i - 1]);
// compare parts
if ($part_a == $part_b) { // part is identical
if ($i == ($len - 1)) {
if ($len_a > $len_b) return 1;
elseif ($len_a < $len_b) return -1;
else return 0; // DNs are identical
}
}
elseif ($part_a == max($part_a, $part_b)) return 1;
else return -1;
}
return -1;
}
/**
* Formats an LDAP time string (e.g. from createTimestamp).
*
* @return String formated time
*/
function formatLDAPTimestamp($time) {
return substr($time, 6, 2) . '.' . substr($time, 4, 2) . '.' . substr($time, 0, 4) .
' ' . substr($time, 8, 2) . ':' . substr($time, 10, 2) . ':' . substr($time, 12, 2) . ' GMT';
}
?>