[dev] patch for ldap.php

[Christophe Réquillart]

Hi,

I have two patches in the file horde/lib/Auth/ldap.php : 
    1/ minor bug : the ldap port is not use in the ldap_connect
    2/ more serious : why are you doing a search before the bind ? It's more simple to do the bind with the dn construct with the uid from the configuration file ... If the dn does not exist, the connect will be refused. And there is a problem with the search, if the acl of the ldap server don't authorize the search as an anonymous user.

101c101
<         $ldap = @ldap_connect($this->params['hostspec']);
---
>         $ldap = @ldap_connect($this->params['hostspec'], $this->params['port']);
106,114c106
<         /* Search for the user's full DN. */
<         $search = @ldap_search($ldap, $this->params['basedn'],
<             $this->params['uid'] . '=' . $userID, array($this->params['uid']));
<         $result = @ldap_get_entries($ldap, $search);
<         if (is_array($result) && (count($result) > 1)) {
<             $dn = $result[0]['dn'];
<         } else {
<             return (new PEAR_Error(_("Empty result.")));
<         }
---
>       $dn = $this->params['uid'].'='.$userID.','.$this->params['basedn'];