Fix http_authentication_host usage

Johannes Weißl

2013-06-09 d9a8d210f56859d583f3cc2674771e483edc785e

Fix http_authentication_host usage

Without this fix it is impossible to use a host different from config
option "http_authentication_host" after logout (fixup aec2869).

 plugins/http_authentication/http_authentication.php

@@ -52,7 +52,7 @@
        $this->load_config();

        $host = rcmail::get_instance()->config->get('http_authentication_host');
        if (is_string($host) && trim($host) !== '')
        if (is_string($host) && trim($host) !== '' && empty($args['host']))
            $args['host'] = rcube_utils::idn_to_ascii(rcube_utils::parse_host($host));

        // Allow entering other user data in login form,