Fix variable substitution in ldap host for some use-cases, e.g. new_u…

…ser_identity (#5544)

CHANGELOG

@@ -2,6 +2,7 @@ CHANGELOG Roundcube Webmail
 ===========================
 
 - Managesieve: Fix handling of scripts with nested rules (#5540)
+- Fix variable substitution in ldap host for some use-cases, e.g. new_user_identity (#5544)
 
 RELEASE 1.2.3
 -------------

program/lib/Roundcube/rcube_ldap.php

@@ -228,7 +228,7 @@ function __construct($p, $debug = false, $mail_domain = null)
 
         $this->sort_col    = is_array($p['sort']) ? $p['sort'][0] : $p['sort'];
         $this->debug       = $debug;
-        $this->mail_domain = $mail_domain;
+        $this->mail_domain = $this->prop['mail_domain'] = $mail_domain;
 
         // initialize cache
         $rcube = rcube::get_instance();
@@ -260,11 +260,13 @@ private function _connect()
     {
         $rcube = rcube::get_instance();
 
-        if ($this->ready)
+        if ($this->ready) {
             return true;
+        }
 
-        if (!is_array($this->prop['hosts']))
+        if (!is_array($this->prop['hosts'])) {
             $this->prop['hosts'] = array($this->prop['hosts']);
+        }
 
         // try to connect + bind for every host configured
         // with OpenLDAP 2.x ldap_connect() always succeeds but ldap_bind will fail if host isn't reachable

program/lib/Roundcube/rcube_ldap_generic.php

@@ -48,7 +48,8 @@ public function connect($host = null)
     {
         // Net_LDAP3 does not support IDNA yet
         // also parse_host() here is very Roundcube specific
-        $host = rcube_utils::idn_to_ascii(rcube_utils::parse_host($host));
+        $host = rcube_utils::parse_host($host, $this->config['mail_domain']);
+        $host = rcube_utils::idn_to_ascii($host);
 
         return parent::connect($host);
     }