Code

Applied in_array strict patches from trunk
[gosa.git] / gosa-core / include / class_config.inc
index 5f00a2bd0abea86c7649a256c091fa0719aa824c..f3b8907ab2b98387ae6c67760f7bdfdfea61c0df 100644 (file)
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-class config  {
-
-  /* XML parser */
-  var $parser;
-  var $config_found= FALSE;
-  var $tags= array();
-  var $level= 0;
-  var $gpc= 0;
-  var $section= "";
-  var $currentLocation= "";
-
-  /* Selected connection */
-  var $current= array();
-
-  /* Link to LDAP-server */
-  var $ldap= NULL;
-  var $referrals= array();
-
-  /* Configuration data */
-  var $data= array( 'TABS' => array(), 'LOCATIONS' => array(), 'SERVERS' => array(),
-      'MAIN' => array(),
-      'MENU' => array(), 'SERVICE' => array());
-  var $basedir= "";
-  var $config_version ="";
-
-  /* Keep a copy of the current deparment list */
-  var $departments= array();
-  var $idepartments= array();
-  var $adepartments= array();
-  var $tdepartments= array();
-  var $filename = "";
-  var $last_modified = 0;
-
-  function config($filename, $basedir= "")
-  {
-    $this->parser = xml_parser_create();
-    $this->basedir= $basedir;
-
-    xml_set_object($this->parser, $this);
-    xml_set_element_handler($this->parser, "tag_open", "tag_close");
-
-    /* Parse config file directly? */
-    if ($filename != ""){
-      $this->parse($filename);
-    }
-  }
-
-  
-  function check_and_reload()
-  {
-    global $ui;
+/*! \brief Configuration class
+ *  \ingroup coreclasses
+ *
+ * The configuration class, responsible for parsing and querying the
+ * gosa configuration file.
+ */
 
-    /* Check if class_location.inc has changed, this is the case 
-        if we have installed or removed plugins. 
-     */
-    if(session::is_set("class_location.inc:timestamp")){
-      $tmp = stat("../include/class_location.inc");
-      if($tmp['mtime'] != session::get("class_location.inc:timestamp")){
-        session::un_set("plist");
-      }
-    }
-    $tmp = stat("../include/class_location.inc");
-    session::set("class_location.inc:timestamp",$tmp['mtime']);
-
-
-
-    if($this->filename != "" && filemtime($this->filename) != $this->last_modified){
-
-      $this->config_found= FALSE;
-      $this->tags= array();
-      $this->level= 0;
-      $this->gpc= 0;
-      $this->section= "";
-      $this->currentLocation= "";
-
-      $this->parser = xml_parser_create();
-      xml_set_object($this->parser, $this);
-      xml_set_element_handler($this->parser, "tag_open", "tag_close");
-      $this->parse($this->filename);
-#     if(session::is_set('plist')){
-#       session::un_set('plist');
-#     }
-#     if(session::is_set('plug')){
-#       session::un_set('plug');
-#     }
-#     if(isset($_GET['plug'])){
-#       unset($_GET['plug']);
-#     }
-    }
-  }  
-
-
-  function parse($filename)
-  { 
-    $this->last_modified = filemtime($filename);
-    $this->filename = $filename;
-    $fh= fopen($filename, "r"); 
-    $xmldata= fread($fh, 100000);
-    fclose($fh); 
-    if(!xml_parse($this->parser, chop($xmldata))){
-      $msg = sprintf(_("XML error in gosa.conf: %s at line %d"),
-            xml_error_string(xml_get_error_code($this->parser)),
-            xml_get_current_line_number($this->parser));
-      msg_dialog::display(_("Configuration error"), $msg, FATAL_ERROR_DIALOG);
-      exit;
-    }
-  }
-
-  function tag_open($parser, $tag, $attrs)
-  {
-    /* Save last and current tag for reference */
-    $this->tags[$this->level]= $tag;
-    $this->level++;
-
-    /* Trigger on CONF section */
-    if ($tag == 'CONF'){
-      $this->config_found= TRUE;
-      if(isset($attrs['CONFIG_VERSION'])){
-        $this->config_version = $attrs['CONFIG_VERSION'];
-      }
-    }
+class config  {
 
-    /* Return if we're not in config section */
-    if (!$this->config_found){
-      return;
-    }
+    /* XML parser */
+    var $parser;
+    var $config_found= FALSE;
+    var $tags= array();
+    var $level= 0;
+    var $gpc= 0;
+    var $section= "";
+    var $currentLocation= "";
+
+    /*! \brief Store configuration for current location */
+    var $current= array(); 
+
+    /* Link to LDAP-server */
+    var $ldap= NULL;
+    var $referrals= array();
+
+    /* \brief Configuration data
+     *
+     * - $data['SERVERS'] contains server informations.
+     * */
+    var $data= array( 'TABS' => array(), 'LOCATIONS' => array(), 'SERVERS' => array(),
+            'MAIN' => array(),
+            'MENU' => array(), 'SERVICE' => array());
+    var $basedir= "";
+    var $config_version ="NOT SET";
+
+    /* Keep a copy of the current deparment list */
+    var $departments= array();
+    var $idepartments= array();
+    var $adepartments= array();
+    var $tdepartments= array();
+    var $department_info= array();
+    var $filename = "";
+    var $last_modified = 0;
+
+    var $instanceUUID = "";
+
+    private $jsonRPChandle = NULL; 
+
+    public $configRegistry = NULL;
+
+    /*! \brief Class constructor of the config class
+     *  
+     *  \param string 'filename' path to the configuration file
+     *  \param string 'basedir' base directory
+     *
+     * */
+    function config($filename, $basedir= "")
+    {
+        $this->parser = xml_parser_create();
+        $this->basedir= $basedir;
+
+        xml_set_object($this->parser, $this);
+        xml_set_element_handler($this->parser, "tag_open", "tag_close");
+
+        /* Parse config file directly? */
+        if ($filename != ""){
+            $this->parse($filename);
+        }
 
-    /* yes/no to true/false and upper case TRUE to true and so on*/
-    foreach($attrs as $name => $value){
-      if(preg_match("/^(true|yes)$/i",$value)){
-        $attrs[$name] = "true";
-      }elseif(preg_match("/^(false|no)$/i",$value)){
-        $attrs[$name] = "false";
-      } 
+        // Load configuration registry
+        $this->configRegistry = new configRegistry($this);
+        $this->registration = new GOsaRegistration($this);
     }
 
-    /* Look through attributes */
-    switch ($this->tags[$this->level-1]){
 
+    function getInstanceUUID()
+    {
+        return($this->instanceUUID);
+    }    
 
-      /* Handle tab section */
-      case 'TAB':      $name= $this->tags[$this->level-2];
 
-                  /* Create new array? */
-                  if (!isset($this->data['TABS'][$name])){
-                    $this->data['TABS'][$name]= array();
-                  }
+    /*! \brief Check and reload the configuration
+     * 
+     * This function checks if the configuration has changed, since it was
+     * read the last time and reloads it. It uses the file mtime to check
+     * weither the file changed or not.
+     *
+     * */ 
+    function check_and_reload()
+    {
+        global $ui;
 
-                  /* Add elements */
-                  $this->data['TABS'][$name][]= $attrs;
-                  break;
-
-                  /* Handle location */
-      case 'LOCATION':
-                  if ($this->tags[$this->level-2] == 'MAIN'){
-                    $name= $attrs['NAME'];
-                    $name = preg_replace("/[<>\"']/","",$name);
-                    $attrs['NAME'] = $name;
-                    $this->currentLocation= $name;
+        /* Check if class_location.inc has changed, this is the case 
+           if we have installed or removed plugins. 
+         */
+        if(session::global_is_set("class_location.inc:timestamp")){
+            $tmp = stat("../include/class_location.inc");
+            if($tmp['mtime'] != session::global_get("class_location.inc:timestamp")){
+                session::global_un_set("plist");
+            }
+        }
+        $tmp = stat("../include/class_location.inc");
+        session::global_set("class_location.inc:timestamp",$tmp['mtime']);
+
+        if($this->filename != "" && filemtime($this->filename) != $this->last_modified){
+
+            $this->config_found= FALSE;
+            $this->tags= array();
+            $this->level= 0;
+            $this->gpc= 0;
+            $this->section= "";
+            $this->currentLocation= "";
+
+            $this->parser = xml_parser_create();
+            xml_set_object($this->parser, $this);
+            xml_set_element_handler($this->parser, "tag_open", "tag_close");
+            $this->parse($this->filename);
+            $this->set_current($this->current['NAME']);
+        }
+    }  
+
+
+    /*! \brief Parse the given configuration file 
+     *
+     *  Parses the configuration file and displays errors if there
+     *  is something wrong with it.
+     *
+     *  \param string 'filename' The filename of the configuration file.
+     * */
+
+    function parse($filename)
+    {
+        $this->data = array(
+                "TABS"      => array(), 
+                "LOCATIONS" => array(), 
+                "MAIN"      => array(), 
+                "MENU"      => array(), 
+                "SERVICE"   => array());
+
+        $this->last_modified = filemtime($filename);
+        $this->filename = $filename;
+        $fh= fopen($filename, "r"); 
+        $xmldata= fread($fh, 100000);
+        fclose($fh);
+        if(!xml_parse($this->parser, chop($xmldata))){
+            $msg = sprintf(_("XML error in gosa.conf: %s at line %d"),
+                    bold(xml_error_string(xml_get_error_code($this->parser))),
+                    bold(xml_get_current_line_number($this->parser)));
+            msg_dialog::display(_("Configuration error"), $msg, FATAL_ERROR_DIALOG);
+            exit;
+        }
+    }
 
-                    /* Add location elements */
-                    $this->data['LOCATIONS'][$name]= $attrs;
-                  }
-                  break;
+    function tag_open($parser, $tag, $attrs)
+    {
+        /* Save last and current tag for reference */
+        $this->tags[$this->level]= $tag;
+        $this->level++;
+
+        /* Trigger on CONF section */
+        if ($tag == 'CONF'){
+            $this->config_found= TRUE;
+            if(isset($attrs['CONFIGVERSION'])){
+                $this->config_version = $attrs['CONFIGVERSION'];
+            }
+            if(isset($attrs['INSTANCEUUID'])){
+                $this->instanceUUID = $attrs['INSTANCEUUID'];
+            }
+        }
 
-                  /* Handle referral tags */
-      case 'REFERRAL':
-                  if ($this->tags[$this->level-2] == 'LOCATION'){
-                    $url= $attrs['URL'];
-                    $server= preg_replace('!^([^:]+://[^/]+)/.*$!', '\\1', $url);
+        /* Return if we're not in config section */
+        if (!$this->config_found){
+            return;
+        }
 
-                    /* Add location elements */
-                    if (!isset($this->data['LOCATIONS'][$this->currentLocation]['REFERRAL'])){
-                      $this->data['LOCATIONS'][$this->currentLocation]['REFERRAL']= array();
-                    }
+        /* yes/no to true/false and upper case TRUE to true and so on*/
+        foreach($attrs as $name => $value){
+            if(preg_match("/^(true|yes)$/i",$value)){
+                $attrs[$name] = "true";
+            }elseif(preg_match("/^(false|no)$/i",$value)){
+                $attrs[$name] = "false";
+            } 
+        }
 
-                    $this->data['LOCATIONS'][$this->currentLocation]['REFERRAL'][$server]= $attrs;
-                  }
-                  break;
-
-                  /* Load main parameters */
-      case 'MAIN':
-                  $this->data['MAIN']= array_merge ($this->data['MAIN'], $attrs);
-                  break;
-
-                  /* Load menu */
-      case 'SECTION':
-                  if ($this->tags[$this->level-2] == 'MENU'){
-                    $this->section= $attrs['NAME'];
-                    $this->data['MENU'][$this->section]= array(); ;
-                  }
-                  break;
-
-                  /* Inser plugins */
-      case 'PLUGIN':
-                  if ($this->tags[$this->level-3] == 'MENU' &&
-                      $this->tags[$this->level-2] == 'SECTION'){
-
-                    $this->data['MENU'][$this->section][$this->gpc++]= $attrs;
-                  }
-                  if ($this->tags[$this->level-2] == 'SERVICEMENU'){
-                    $this->data['SERVICE'][$attrs['CLASS']]= $attrs;
-                  }
-                  break;
+        /* Look through attributes */
+        switch ($this->tags[$this->level-1]){
+
+
+            /* Handle tab section */
+            case 'TAB':        $name= $this->tags[$this->level-2];
+
+                        /* Create new array? */
+                        if (!isset($this->data['TABS'][$name])){
+                            $this->data['TABS'][$name]= array();
+                        }
+
+                        /* Add elements */
+                        $this->data['TABS'][$name][]= $attrs;
+                        break;
+
+                        /* Handle location */
+            case 'LOCATION':
+                        if ($this->tags[$this->level-2] == 'MAIN'){
+                            $name= $attrs['NAME'];
+                            $name = preg_replace("/[<>\"']/","",$name);
+                            $attrs['NAME'] = $name;
+                            $this->currentLocation= $name;
+
+                            /* Add location elements */
+                            $this->data['LOCATIONS'][$name]= $attrs;
+                        }
+                        break;
+
+                        /* Handle referral tags */
+            case 'REFERRAL':
+                        if ($this->tags[$this->level-2] == 'LOCATION'){
+                            $url= $attrs['URI'];
+                            $server= preg_replace('!^([^:]+://[^/]+)/.*$!', '\\1', $url);
+
+                            /* Add location elements */
+                            if (!isset($this->data['LOCATIONS'][$this->currentLocation]['REFERRAL'])){
+                                $this->data['LOCATIONS'][$this->currentLocation]['REFERRAL']= array();
+                            }
+
+                            $this->data['LOCATIONS'][$this->currentLocation]['REFERRAL'][$server]= $attrs;
+                        }
+                        break;
+
+                        /* Load main parameters */
+            case 'MAIN':
+                        $this->data['MAIN']= array_merge ($this->data['MAIN'], $attrs);
+                        break;
+
+                        /* Load menu */
+            case 'SECTION':
+                        if ($this->tags[$this->level-2] == 'MENU'){
+                            $this->section= $attrs['NAME'];
+                            $this->data['MENU'][$this->section]= array(); ;
+                        }
+                        break;
+
+            case 'PATHMENU':
+                        $this->data['PATHMENU']= array(); ;
+                        break;
+
+            case 'SHORTCUTMENU':
+                        $this->data['SHORTCUTMENU']= array(); ;
+                        break;
+
+                        /* Inser plugins */
+            case 'PLUGIN':
+                        if ($this->tags[$this->level-3] == 'MENU' &&
+                                $this->tags[$this->level-2] == 'SECTION'){
+
+                            $this->data['MENU'][$this->section][$this->gpc++]= $attrs;
+                        }
+                        if ($this->tags[$this->level-2] == 'PATHMENU'){
+                            $this->data['PATHMENU'][$this->gpc++]= $attrs;
+                        }
+                        if ($this->tags[$this->level-2] == 'SHORTCUTMENU'){
+                            $this->data['SHORTCUTMENU'][$this->gpc++]= $attrs;
+                        }
+                        if ($this->tags[$this->level-2] == 'SERVICEMENU'){
+                            $this->data['SERVICE'][$attrs['CLASS']]= $attrs;
+                        }
+                        break;
+        }
     }
-  }
 
-  function tag_close($parser, $tag)
-  {
-    /* Close config section */
-    if ($tag == 'CONF'){
-      $this->config_found= FALSE;
+    function tag_close($parser, $tag)
+    {
+        /* Close config section */
+        if ($tag == 'CONF'){
+            $this->config_found= FALSE;
+        }
+        $this->level--;
     }
-    $this->level--;
-  }
 
 
-  function get_credentials($creds)
-  {
-    if (isset($_SERVER['HTTP_GOSA_KEY'])){
-      return (cred_decrypt($creds, $_SERVER['HTTP_GOSA_KEY']));
-    }
-    return ($creds);
-  }
-
-
-  function get_ldap_link($sizelimit= FALSE)
-  {
-    if($this->ldap === NULL || !is_resource($this->ldap->cid)){
-
-      /* Build new connection */
-      $this->ldap= ldap_init ($this->current['SERVER'], $this->current['BASE'],
-          $this->current['ADMIN'], $this->get_credentials($this->current['PASSWORD']));
-
-      /* Check for connection */
-      if (is_null($this->ldap) || (is_int($this->ldap) && $this->ldap == 0)){
-        $smarty= get_smarty();
-        msg_dialog::display(_("LDAP error"), _("Cannot bind to LDAP. Please contact the system administrator."), FATAL_ERROR_DIALOG);
-        exit();
-      }
-
-      if (!session::is_set('size_limit')){
-        session::set('size_limit',$this->current['SIZELIMIT']);
-        session::set('size_ignore',$this->current['SIZEIGNORE']);
-      }
-
-      if ($sizelimit){
-        $this->ldap->set_size_limit(session::get('size_limit'));
-      } else {
-        $this->ldap->set_size_limit(0);
-      }
-
-      /* Move referrals */
-      if (!isset($this->current['REFERRAL'])){
-        $this->ldap->referrals= array();
-      } else {
-        $this->ldap->referrals= $this->current['REFERRAL'];
-      }
+    function get_credentials($creds)
+    {
+        if (isset($_SERVER['HTTP_GOSA_KEY'])){
+            if (!session::global_is_set('HTTP_GOSA_KEY_CACHE')){
+                session::global_set('HTTP_GOSA_KEY_CACHE',array());
+            }
+            $cache = session::global_get('HTTP_GOSA_KEY_CACHE');
+            if(!isset($cache[$creds])){
+                $cache[$creds] = cred_decrypt($creds, $_SERVER['HTTP_GOSA_KEY']);
+                session::global_set('HTTP_GOSA_KEY_CACHE',$cache);
+            }
+            return ($cache[$creds]);
+        }
+        return ($creds);
     }
 
-    return new ldapMultiplexer($this->ldap);
-  }
 
-  function set_current($name)
-  {
-    $this->current= $this->data['LOCATIONS'][$name];
+    function getRpcHandle($connectUrl=NULL, $username=NULL, $userPassword=NULL, $authModeDigest=FALSE, $cache = TRUE)
+    {
+        // Get conenct information, if no info was given use the default values from gosa.conf
+        $connectUrl   = ($connectUrl !== NULL)   ? $connectUrl   : $this->get_cfg_value('core','gosaRpcServer');
+        $username     = ($username !== NULL)     ? $username     : $this->get_cfg_value('core','gosaRpcUser');
+        $userPassword = ($userPassword !== NULL) ? $userPassword : $this->get_cfg_value('core','gosaRpcPassword');
+        $authModeDigest = $authModeDigest;
+    
+        // Create jsonRPC handle on demand.
+        if(!$cache){
+            return(new jsonRPC($this, $connectUrl, $username, $userPassword, $authModeDigest));
+        }else{
 
-    if (!isset($this->current['PEOPLE'])){
-      $this->current['PEOPLE']= "ou=people";
-    }
-    if (!isset($this->current['GROUPS'])){
-      $this->current['GROUPS']= "ou=groups";
+            if(!isset($this->jsonRPChandle[$connectUrl][$username]) || !$this->jsonRPChandle[$connectUrl][$username]){
+                $this->jsonRPChandle[$connectUrl][$username] = new jsonRPC($this, $connectUrl, $username, $userPassword, $authModeDigest);
+            }
+            return($this->jsonRPChandle[$connectUrl][$username]);
+        }
     }
 
-    if (isset($this->current['INITIAL_BASE'])){
-      session::set('CurrentMainBase',$this->current['INITIAL_BASE']);
-    }
-  
-    /* Remove possibly added ',' from end of group and people ou */
-    $this->current['GROUPS'] = preg_replace("/,*$/","",$this->current['GROUPS']);
-    $this->current['PEOPLE'] = preg_replace("/,*$/","",$this->current['PEOPLE']);
 
-    if (!isset($this->current['WINSTATIONS'])){
-      $this->current['WINSTATIONS']= "ou=winstations,ou=systems";
-    }
-    if (!isset($this->current['HASH'])){
-      $this->current['HASH']= "crypt";
-    }
-    if (!isset($this->current['DNMODE'])){
-      $this->current['DNMODE']= "cn";
-    }
-    if (!isset($this->current['MINID'])){
-      $this->current['MINID']= 100;
-    }
-    if (!isset($this->current['SIZELIMIT'])){
-      $this->current['SIZELIMIT']= 200;
-    }
-    if (!isset($this->current['SIZEINGORE'])){
-      $this->current['SIZEIGNORE']= TRUE;
-    } else {
-      if (preg_match("/true/i", $this->current['SIZEIGNORE'])){
-        $this->current['SIZEIGNORE']= TRUE;
-      } else {
-        $this->current['SIZEIGNORE']= FALSE;
-      }
-    }
+    /*! \brief Get a LDAP link object
+     *
+     * This function can be used to get an ldap object, which in turn can
+     * be used to query the LDAP. See the LDAP class for more information
+     * on how to use it.
+     *
+     * Example usage:
+     * \code
+     * $ldap = $this->config->get_ldap_link();
+     * \endcode
+     *
+     * \param boolean sizelimit Weither to impose a sizelimit on the LDAP object or not.
+     * Defaults to false. If set to true, the size limit in the configuration
+     * file will be used to set the option LDAP_OPT_SIZELIMIT.
+     * \return ldapMultiplexer object
+     */
+    function get_ldap_link($sizelimit= FALSE)
+    {
+        if($this->ldap === NULL || !is_resource($this->ldap->cid)){
+
+            /* Build new connection */
+            $this->ldap= ldap_init ($this->current['SERVER'], $this->current['BASE'],
+                    $this->current['ADMINDN'], $this->get_credentials($this->current['ADMINPASSWORD']));
+
+            /* Check for connection */
+            if (is_null($this->ldap) || (is_int($this->ldap) && $this->ldap == 0)){
+                $smarty= get_smarty();
+                msg_dialog::display(_("LDAP error"), _("Cannot bind to LDAP!"), FATAL_ERROR_DIALOG);
+                exit();
+            }
+
+            /* Move referrals */
+            if (!isset($this->current['REFERRAL'])){
+                $this->ldap->referrals= array();
+            } else {
+                $this->ldap->referrals= $this->current['REFERRAL'];
+            }
+
+            if (!session::global_is_set('size_limit')){
+                session::global_set('size_limit', $this->get_cfg_value('core', 'ldapSizelimit'));
+                session::global_set('size_ignore', $this->boolValueIsTrue('core', 'ldapSizeIgnore'));
+            }
+        }
 
-    /* Sort referrals, if present */
-    if (isset ($this->current['REFERRAL'])){
-      $bases= array();
-      $servers= array();
-      foreach ($this->current['REFERRAL'] as $ref){
-        $server= preg_replace('%^(.*)/[^/]+$%', '\\1', $ref['URL']);
-        $base= preg_replace('%^.*/([^/]+)$%', '\\1', $ref['URL']);
-        $bases[$base]= strlen($base);
-        $servers[$base]= $server;
-      }
-      asort($bases);
-      reset($bases);
+        $obj  = new ldapMultiplexer($this->ldap);
+        if ($sizelimit){
+            $obj->set_size_limit(session::global_get('size_limit'));
+        } else {
+            $obj->set_size_limit(0);
+        }
+        return($obj);
     }
 
-    /* SERVER not defined? Load the one with the shortest base */
-    if (!isset($this->current['SERVER'])){
-      $this->current['SERVER']= $servers[key($bases)];
-    }
+    /*! \brief Set the current location
+     *  
+     *  \param string name the name of the location
+     */
+    function set_current($name)
+    {
+        $this->current= $this->data['LOCATIONS'][$name];
 
-    /* BASE not defined? Load the one with the shortest base */
-    if (!isset($this->current['BASE'])){
-      $this->current['BASE']= key($bases);
-    }
+        if (isset($this->current['INITIAL_BASE'])){
+            session::global_set('CurrentMainBase',$this->current['INITIAL_BASE']);
+        }
 
-    /* Convert BASE to have escaped special characters */
-    $this->current['BASE']= @LDAP::convert($this->current['BASE']);
+        /* Sort referrals, if present */
+        if (isset ($this->current['REFERRAL'])){
+            $bases= array();
+            $servers= array();
+            foreach ($this->current['REFERRAL'] as $ref){
+                $server= preg_replace('%^(.*://[^/]+)/.*$%', '\\1', $ref['URI']);
+                $base= preg_replace('%^.*://[^/]+/(.*)$%', '\\1', $ref['URI']);
+                $bases[$base]= strlen($base);
+                $servers[$base]= $server;
+            }
+            asort($bases);
+            reset($bases);
+        }
 
-    /* Parse LDAP referral informations */
-    if (!isset($this->current['ADMIN']) || !isset($this->current['PASSWORD'])){
-      $url= $this->current['SERVER'];
-      $referral= $this->current['REFERRAL'][$url];
-      $this->current['ADMIN']= $referral['ADMIN'];
-      $this->current['PASSWORD']= $referral['PASSWORD'];
-    }
+        /* SERVER not defined? Load the one with the shortest base */
+        if (!isset($this->current['SERVER'])){
+            $this->current['SERVER']= $servers[key($bases)];
+        }
 
-    /* Load server informations */
-    $this->load_servers();
-  }
+        /* BASE not defined? Load the one with the shortest base */
+        if (!isset($this->current['BASE'])){
+            $this->current['BASE']= key($bases);
+        }
 
-  function load_servers ()
-  {
-    /* Only perform actions if current is set */
-    if ($this->current === NULL){
-      return;
-    }
+        /* Convert BASE to have escaped special characters */
+        $this->current['BASE']= @LDAP::convert($this->current['BASE']);
 
-    /* Fill imap servers */
-    $ldap= $this->get_ldap_link();
-    $ldap->cd ($this->current['BASE']);
-    if (!isset($this->current['MAILMETHOD'])){
-      $this->current['MAILMETHOD']= "";
+        /* Parse LDAP referral informations */
+        if (!isset($this->current['ADMINDN']) || !isset($this->current['ADMINPASSWORD'])){
+            $url= $this->current['SERVER'];
+            $referral= $this->current['REFERRAL'][$url];
+            $this->current['ADMINDN']= $referral['ADMINDN'];
+            $this->current['ADMINPASSWORD']= $referral['ADMINPASSWORD'];
+        }
+
+        /* Load server informations */
+        $this->load_servers();
     }
-    if ($this->current['MAILMETHOD'] == ""){
-      $ldap->search ("(objectClass=goMailServer)", array('cn'));
-      $this->data['SERVERS']['IMAP']= array();
-      while ($attrs= $ldap->fetch()){
-        $name= $attrs['cn'][0];
-        $this->data['SERVERS']['IMAP'][$name]= 
-          array( 
-              "server_dn"   => $attrs['dn'],
-              "connect"     => "",
-              "admin"       => "",
-              "password"    => "",
-              "sieve_server"=> "",
-              "sieve_option"=> "",
-              "sieve_port"  => "");
-      }
-    } else {
-      $ldap->search ("(&(objectClass=goImapServer)(goImapSieveServer=*))", 
-                    array('goImapName', 'goImapConnect', 'goImapAdmin', 'goImapPassword',
-            'goImapSieveServer', 'goImapSievePort'));
 
-      $this->data['SERVERS']['IMAP']= array();
 
-      while ($attrs= $ldap->fetch()){
+    /*! \brief Load server information from config/LDAP
+     *
+     *  This function searches the LDAP for servers (e.g. goImapServer, goMailServer etc.)
+     *  and stores information about them $this->data['SERVERS']. In the case of mailservers
+     *  the main section of the configuration file is searched, too.
+     */
+    function load_servers ()
+    {
+        /* Only perform actions if current is set */
+        if ($this->current === NULL){
+            return;
+        }
+
+        /* Fill imap servers */
+        $ldap= $this->get_ldap_link();
+        $ldap->cd ($this->current['BASE']);
 
-        /* Check if the given goImapSieveServer is in the new style "{cn:port/option}"
-           or the old style just "cn".
+        /* Search mailMethod konfiguration in main section too 
          */
-        if(preg_match("/\{/",$attrs['goImapSieveServer'][0])){
-          $sieve_server = preg_replace("/^\{([^:]*).*$/","\\1",$attrs['goImapSieveServer'][0]);
-          $sieve_option = preg_replace("/^[^:]*[^\/]*+\/(.*)\}$/","\\1",$attrs['goImapSieveServer'][0]);
-        }else{
-          $sieve_server = $attrs['goImapSieveServer'][0];
-          $sieve_option = "";
-        }
-
-        $pwd            = $attrs['goImapPassword'][0];
-        $imap_admin     = $attrs['goImapAdmin'][0];
-        $imap_connect   = $attrs['goImapConnect'][0];
-        $imap_server    = $attrs['goImapName'][0];
-        $sieve_port     = $attrs['goImapSievePort'][0];
-        
-        $this->data['SERVERS']['IMAP'][$imap_server]= 
-            array( 
-            "server_dn"   => $attrs['dn'],
-            "connect"     => $imap_connect,
-            "admin"       => $imap_admin,
-            "password"    => $pwd,
-            "sieve_server"=> $sieve_server,
-            "sieve_option"=> $sieve_option,
-            "sieve_port"  => $sieve_port);
-      }
-    }
+        $tmp = $this->get_cfg_value("core","mailMethod");
+        if ($tmp){
+            $ldap->search ("(objectClass=goMailServer)", array('cn'));
+            $this->data['SERVERS']['IMAP']= array();
+            while ($attrs= $ldap->fetch()){
+                $name= $attrs['cn'][0];
+                $this->data['SERVERS']['IMAP'][$name]= 
+                    array( 
+                            "server_dn"   => $attrs['dn'],
+                            "connect"     => "",
+                            "admin"       => "",
+                            "password"    => "",
+                            "sieve_server"=> "",
+                            "sieve_option"=> "",
+                            "sieve_port"  => "");
+            }
+        } else {
+            $ldap->search ("(&(objectClass=goImapServer)(goImapSieveServer=*))", 
+                    array('goImapName', 'goImapConnect', 'goImapAdmin', 'goImapPassword',
+                        'goImapSieveServer', 'goImapSievePort'));
+
+            $this->data['SERVERS']['IMAP']= array();
+
+            while ($attrs= $ldap->fetch()){
+
+                /* Check if the given goImapSieveServer is in the new style "{cn:port/option}"
+                   or the old style just "cn".
+                 */
+                if(preg_match("/\{/",$attrs['goImapSieveServer'][0])){
+                    $sieve_server = preg_replace("/^\{([^:]*).*$/","\\1",$attrs['goImapSieveServer'][0]);
+                    $sieve_option = preg_replace("/^[^:]*[^\/]*+\/(.*)\}$/","\\1",$attrs['goImapSieveServer'][0]);
+                }else{
+                    $sieve_server = $attrs['goImapSieveServer'][0];
+                    $sieve_option = "";
+                }
+
+                $pwd            = $attrs['goImapPassword'][0];
+                $imap_admin     = $attrs['goImapAdmin'][0];
+                $imap_connect   = $attrs['goImapConnect'][0];
+                $imap_server    = $attrs['goImapName'][0];
+                $sieve_port     = $attrs['goImapSievePort'][0];
+
+                $this->data['SERVERS']['IMAP'][$imap_server]= 
+                    array( 
+                            "server_dn"   => $attrs['dn'],
+                            "connect"     => $imap_connect,
+                            "admin"       => $imap_admin,
+                            "password"    => $pwd,
+                            "sieve_server"=> $sieve_server,
+                            "sieve_option"=> $sieve_option,
+                            "sieve_port"  => $sieve_port);
+            }
+        }
 
-    /* Get kerberos server. FIXME: only one is supported currently */
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(&(goKrbRealm=*)(goKrbAdmin=*)(objectClass=goKrbServer))");
-    if ($ldap->count()){
-      $attrs= $ldap->fetch();
-      $this->data['SERVERS']['KERBEROS']= array( 'SERVER' => $attrs['cn'][0],
-          'REALM' => $attrs['goKrbRealm'][0],
-          'ADMIN' => $attrs['goKrbAdmin'][0]);
-    }
+        /* Get kerberos server. FIXME: only one is supported currently */
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(&(goKrbRealm=*)(goKrbAdmin=*)(objectClass=goKrbServer))");
+        if ($ldap->count()){
+            $attrs= $ldap->fetch();
+            $this->data['SERVERS']['KERBEROS']= array( 'SERVER' => $attrs['cn'][0],
+                    'REALM' => $attrs['goKrbRealm'][0],
+                    'ADMIN' => $attrs['goKrbAdmin'][0]);
+        }
 
-    /* Get cups server. FIXME: only one is supported currently */
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(objectClass=goCupsServer)");
-    if ($ldap->count()){
-      $attrs= $ldap->fetch();
-      $this->data['SERVERS']['CUPS']= $attrs['cn'][0]; 
-    }
+        /* Get cups server. FIXME: only one is supported currently */
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(objectClass=goCupsServer)");
+        if ($ldap->count()){
+            $attrs= $ldap->fetch();
+            $this->data['SERVERS']['CUPS']= $attrs['cn'][0];   
+        }
 
-    /* Get fax server. FIXME: only one is supported currently */
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(objectClass=goFaxServer)");
-    if ($ldap->count()){
-      $attrs= $ldap->fetch();
-      $this->data['SERVERS']['FAX']= array( 'SERVER' => $attrs['cn'][0],
-          'LOGIN' => $attrs['goFaxAdmin'][0],
-          'PASSWORD' => $attrs['goFaxPassword'][0]);
-    }
+        /* Get fax server. FIXME: only one is supported currently */
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(objectClass=goFaxServer)");
+        if ($ldap->count()){
+            $attrs= $ldap->fetch();
+            $this->data['SERVERS']['FAX']= array( 'SERVER' => $attrs['cn'][0],
+                    'LOGIN' => $attrs['goFaxAdmin'][0],
+                    'PASSWORD' => $attrs['goFaxPassword'][0]);
+        }
 
 
-    /* Get asterisk servers */
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(objectClass=goFonServer)");
-    $this->data['SERVERS']['FON']= array();
-    if ($ldap->count()){
-      while ($attrs= $ldap->fetch()){
-
-        /* Add 0 entry for development */
-        if(count($this->data['SERVERS']['FON']) == 0){
-          $this->data['SERVERS']['FON'][0]= array(
-              'DN'      => $attrs['dn'],
-              'SERVER'  => $attrs['cn'][0],
-              'LOGIN'   => $attrs['goFonAdmin'][0],
-              'PASSWORD'  => $attrs['goFonPassword'][0],
-              'DB'    => "gophone",
-              'SIP_TABLE'   => "sip_users",
-              'EXT_TABLE'   => "extensions",
-              'VOICE_TABLE' => "voicemail_users",
-              'QUEUE_TABLE' => "queues",
-              'QUEUE_MEMBER_TABLE'  => "queue_members");
-        }
-
-        /* Add entry with 'dn' as index */
-        $this->data['SERVERS']['FON'][$attrs['dn']]= array(
-            'DN'      => $attrs['dn'],
-            'SERVER'  => $attrs['cn'][0],
-            'LOGIN'   => $attrs['goFonAdmin'][0],
-            'PASSWORD'  => $attrs['goFonPassword'][0],
-            'DB'    => "gophone",
-            'SIP_TABLE'   => "sip_users",
-            'EXT_TABLE'   => "extensions",
-            'VOICE_TABLE' => "voicemail_users",
-            'QUEUE_TABLE' => "queues",
-            'QUEUE_MEMBER_TABLE'  => "queue_members");
-      }
-    }
+        /* Get asterisk servers */
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(objectClass=goFonServer)");
+        $this->data['SERVERS']['FON']= array();
+        if ($ldap->count()){
+            while ($attrs= $ldap->fetch()){
+
+                /* Add 0 entry for development */
+                if(count($this->data['SERVERS']['FON']) == 0){
+                    $this->data['SERVERS']['FON'][0]= array(
+                            'DN'      => $attrs['dn'],
+                            'SERVER'  => $attrs['cn'][0],
+                            'LOGIN'   => $attrs['goFonAdmin'][0],
+                            'PASSWORD'  => $attrs['goFonPassword'][0],
+                            'DB'    => "gophone",
+                            'SIP_TABLE'   => "sip_users",
+                            'EXT_TABLE'   => "extensions",
+                            'VOICE_TABLE' => "voicemail_users",
+                            'QUEUE_TABLE' => "queues",
+                            'QUEUE_MEMBER_TABLE'  => "queue_members");
+                }
+
+                /* Add entry with 'dn' as index */
+                $this->data['SERVERS']['FON'][$attrs['dn']]= array(
+                        'DN'      => $attrs['dn'],
+                        'SERVER'  => $attrs['cn'][0],
+                        'LOGIN'   => $attrs['goFonAdmin'][0],
+                        'PASSWORD'  => $attrs['goFonPassword'][0],
+                        'DB'    => "gophone",
+                        'SIP_TABLE'   => "sip_users",
+                        'EXT_TABLE'   => "extensions",
+                        'VOICE_TABLE' => "voicemail_users",
+                        'QUEUE_TABLE' => "queues",
+                        'QUEUE_MEMBER_TABLE'  => "queue_members");
+            }
+        }
 
 
-    /* Get glpi server */
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(&(objectClass=goGlpiServer)(cn=*)(goGlpiAdmin=*)(goGlpiDatabase=*))",array("cn","goGlpiPassword","goGlpiAdmin","goGlpiDatabase"));
-    if ($ldap->count()){
-      $attrs= $ldap->fetch();
-      if(!isset($attrs['goGlpiPassword'])){
-        $attrs['goGlpiPassword'][0] ="";
-      }
-      $this->data['SERVERS']['GLPI']= array( 
-          'SERVER'     => $attrs['cn'][0],
-          'LOGIN'      => $attrs['goGlpiAdmin'][0],
-          'PASSWORD'   => $attrs['goGlpiPassword'][0],
-          'DB'         => $attrs['goGlpiDatabase'][0]);
-    }
+        /* Get glpi server */
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(&(objectClass=goGlpiServer)(cn=*)(goGlpiAdmin=*)(goGlpiDatabase=*))",array("cn","goGlpiPassword","goGlpiAdmin","goGlpiDatabase"));
+        if ($ldap->count()){
+            $attrs= $ldap->fetch();
+            if(!isset($attrs['goGlpiPassword'])){
+                $attrs['goGlpiPassword'][0] ="";
+            }
+            $this->data['SERVERS']['GLPI']= array( 
+                    'SERVER'   => $attrs['cn'][0],
+                    'LOGIN'    => $attrs['goGlpiAdmin'][0],
+                    'PASSWORD'         => $attrs['goGlpiPassword'][0],
+                    'DB'               => $attrs['goGlpiDatabase'][0]);
+        }
 
 
-    /* Get logdb server */
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(objectClass=goLogDBServer)");
-    if ($ldap->count()){
-      $attrs= $ldap->fetch();
-      $this->data['SERVERS']['LOG']= array( 'SERVER' => $attrs['cn'][0],
-          'LOGIN' => $attrs['goLogAdmin'][0],
-          'PASSWORD' => $attrs['goLogPassword'][0]);
-    }
+        /* Get logdb server */
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(objectClass=goLogDBServer)");
+        if ($ldap->count()){
+            $attrs= $ldap->fetch();
+            if(!isset($attrs['gosaLogDB'][0])){
+                $attrs['gosaLogDB'][0] = "gomon";
+            }
+            $this->data['SERVERS']['LOG']= array( 'SERVER' => $attrs['cn'][0],
+                    'LOGIN' => $attrs['goLogAdmin'][0],
+                    'DB' => $attrs['gosaLogDB'][0],
+                    'PASSWORD' => $attrs['goLogPassword'][0]);
+        }
 
 
-    /* GOsa logging databases */
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(objectClass=gosaLogServer)");
-    if ($ldap->count()){
-      while($attrs= $ldap->fetch()){
-      $this->data['SERVERS']['LOGGING'][$attrs['cn'][0]]= 
-          array(
-          'DN'    => $attrs['dn'],
-          'USER'  => $attrs['goLogDBUser'][0],
-          'DB'    => $attrs['goLogDB'][0],
-          'PWD'   => $attrs['goLogDBPassword'][0]);
-      }
-    }
+        /* GOsa logging databases */
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(objectClass=gosaLogServer)");
+        if ($ldap->count()){
+            while($attrs= $ldap->fetch()){
+                $this->data['SERVERS']['LOGGING'][$attrs['cn'][0]]= 
+                    array(
+                            'DN'    => $attrs['dn'],
+                            'USER'  => $attrs['goLogDBUser'][0],
+                            'DB'    => $attrs['goLogDB'][0],
+                            'PWD'   => $attrs['goLogDBPassword'][0]);
+            }
+        }
 
 
-    /* Get NFS server lists */
-    $tmp= array("default");
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(&(objectClass=goShareServer)(goExportEntry=*))");
-    while ($attrs= $ldap->fetch()){
-      for ($i= 0; $i<$attrs["goExportEntry"]["count"]; $i++){
-        if(!preg_match('/^[^|]+\|[^|]+\|NFS\|.*$/', $attrs["goExportEntry"][$i])){
-          continue;
+        /* Get NFS server lists */
+        $tmp= array("default");
+        $tmp2= array("default");
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(&(objectClass=goShareServer)(goExportEntry=*))");
+        while ($attrs= $ldap->fetch()){
+            for ($i= 0; $i<$attrs["goExportEntry"]["count"]; $i++){
+                if(preg_match('/^[^|]+\|[^|]+\|NFS\|.*$/', $attrs["goExportEntry"][$i])){
+                    $path= preg_replace ("/^[^|]+\|[^|]+\|[^|]+\|[^|]+\|([^|]+).*$/", '\1', $attrs["goExportEntry"][$i]);
+                    $tmp[]= $attrs["cn"][0].":$path";
+                }
+                if(preg_match('/^[^|]+\|[^|]+\|NBD\|.*$/', $attrs["goExportEntry"][$i])){
+                    $path= preg_replace ("/^[^|]+\|[^|]+\|[^|]+\|[^|]+\|([^|]+).*$/", '\1', $attrs["goExportEntry"][$i]);
+                    $tmp2[]= $attrs["cn"][0].":$path";
+                }
+            }
+        }
+        $this->data['SERVERS']['NFS']= $tmp;
+        $this->data['SERVERS']['NBD']= $tmp2;
+
+        /* Load Terminalservers */
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(objectClass=goTerminalServer)",array("cn","gotoSessionType"));
+        $this->data['SERVERS']['TERMINAL']= array();
+        $this->data['SERVERS']['TERMINAL'][]= "default";
+        $this->data['SERVERS']['TERMINAL_SESSION_TYPES'] = array();
+
+
+        while ($attrs= $ldap->fetch()){
+            $this->data['SERVERS']['TERMINAL'][]= $attrs["cn"][0];
+            if(isset( $attrs["gotoSessionType"]['count'])){
+                for($i =0 ; $i < $attrs["gotoSessionType"]['count'] ; $i++){
+                    $this->data['SERVERS']['TERMINAL_SESSION_TYPES'][$attrs["cn"][0]][] = $attrs["gotoSessionType"][$i]; 
+                }
+            }
         }
-        $path= preg_replace ("/^[^|]+\|[^|]+\|[^|]+\|[^|]+\|([^|]+).*$/", '\1', $attrs["goExportEntry"][$i]);
-        $tmp[]= $attrs["cn"][0].":$path";
-      }
-    }
-    $this->data['SERVERS']['NFS']= $tmp;
 
-    /* Load Terminalservers */
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(objectClass=goTerminalServer)",array("cn","gotoSessionType"));
-    $this->data['SERVERS']['TERMINAL']= array();
-    $this->data['SERVERS']['TERMINAL'][]= "default";
-    $this->data['SERVERS']['TERMINAL_SESSION_TYPES'] = array();
+        /* Ldap Server 
+         */
+        $this->data['SERVERS']['LDAP']= array();
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(&(objectClass=goLdapServer)(goLdapBase=*))");
+        while ($attrs= $ldap->fetch()){
+            $this->data['SERVERS']['LDAP'][$attrs['dn']] = $attrs;
+        }
 
+        /* Get misc server lists */
+        $this->data['SERVERS']['SYSLOG']= array("default");
+        $this->data['SERVERS']['NTP']= array("default");
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(objectClass=goNtpServer)");
+        while ($attrs= $ldap->fetch()){
+            $this->data['SERVERS']['NTP'][]= $attrs["cn"][0];
+        }
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(objectClass=goSyslogServer)");
+        while ($attrs= $ldap->fetch()){
+            $this->data['SERVERS']['SYSLOG'][]= $attrs["cn"][0];
+        }
 
-    while ($attrs= $ldap->fetch()){
-      $this->data['SERVERS']['TERMINAL'][]= $attrs["cn"][0];
-      if(isset( $attrs["gotoSessionType"]['count'])){
-        for($i =0 ; $i < $attrs["gotoSessionType"]['count'] ; $i++){
-          $this->data['SERVERS']['TERMINAL_SESSION_TYPES'][$attrs["cn"][0]][] = $attrs["gotoSessionType"][$i]; 
+        /* Get samba servers from LDAP, in case of samba3 */
+        $this->data['SERVERS']['SAMBA']= array();
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ("(objectClass=sambaDomain)");
+        while ($attrs= $ldap->fetch()){
+            $this->data['SERVERS']['SAMBA'][$attrs['sambaDomainName'][0]]= array( "SID" =>"","RIDBASE" =>"");
+            if(isset($attrs["sambaSID"][0])){
+                $this->data['SERVERS']['SAMBA'][$attrs['sambaDomainName'][0]]["SID"]  = $attrs["sambaSID"][0];
+            }
+            if(isset($attrs["sambaAlgorithmicRidBase"][0])){
+                $this->data['SERVERS']['SAMBA'][$attrs['sambaDomainName'][0]]["RIDBASE"] = $attrs["sambaAlgorithmicRidBase"][0];
+            }
         }
-      }
-    }
 
-    /* Ldap Server */
-    $this->data['SERVERS']['LDAP']= array();
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(objectClass=goLdapServer)");
-    while ($attrs= $ldap->fetch()){
-      if (isset($attrs["goLdapBase"])){
-        for ($i= 0; $i<$attrs["goLdapBase"]["count"]; $i++){
-          $this->data['SERVERS']['LDAP'][]= $attrs["cn"][0].":".$attrs["goLdapBase"][$i];
+        /* If no samba servers are found, look for configured sid/ridbase */
+        if (count($this->data['SERVERS']['SAMBA']) == 0){
+            $sambaSID = $this->get_cfg_value("core","sambaSID"); 
+            $sambaRIDBase = $this->get_cfg_value("core","sambaRidBase"); 
+            if (!isset($sambaSID) || !isset($sambaRIDBase)){ 
+                msg_dialog::display(_("Configuration error"), 
+                        _("sambaSID and/or sambaRidBase missing in the configuration!"), ERROR_DIALOG);
+            } else {
+                $this->data['SERVERS']['SAMBA']['DEFAULT']= array(
+                        "SID" => $sambaSID ,
+                        "RIDBASE" => $sambaRIDBase);
+            }
         }
-      }
-    }
 
-    /* Get misc server lists */
-    $this->data['SERVERS']['SYSLOG']= array("default");
-    $this->data['SERVERS']['NTP']= array("default");
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(objectClass=goNtpServer)");
-    while ($attrs= $ldap->fetch()){
-      $this->data['SERVERS']['NTP'][]= $attrs["cn"][0];
-    }
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ("(objectClass=goSyslogServer)");
-    while ($attrs= $ldap->fetch()){
-      $this->data['SERVERS']['SYSLOG'][]= $attrs["cn"][0];
     }
 
-    /* Get samba servers from LDAP, in case of samba3 */
-    if ($this->current['SAMBAVERSION'] == 3){
-      $this->data['SERVERS']['SAMBA']= array();
-      $ldap->cd ($this->current['BASE']);
-      $ldap->search ("(objectClass=sambaDomain)");
-      while ($attrs= $ldap->fetch()){
-        $this->data['SERVERS']['SAMBA'][$attrs['sambaDomainName'][0]]= array( "SID" =>"","RIDBASE" =>"");
-        if(isset($attrs["sambaSID"][0])){
-          $this->data['SERVERS']['SAMBA'][$attrs['sambaDomainName'][0]]["SID"]  = $attrs["sambaSID"][0];
-        }
-        if(isset($attrs["sambaAlgorithmicRidBase"][0])){
-          $this->data['SERVERS']['SAMBA'][$attrs['sambaDomainName'][0]]["RIDBASE"] = $attrs["sambaAlgorithmicRidBase"][0];
-        }
-      }
-
-      /* If no samba servers are found, look for configured sid/ridbase */
-      if (count($this->data['SERVERS']['SAMBA']) == 0){
-        if (!isset($this->current["SID"]) || !isset($this->current["RIDBASE"])){
-          msg_dialog::display(_("Configuration error"), _("SID and/or RIDBASE missing in the configuration!"), FATAL_ERROR_DIALOG);
-          exit();
-        } else {
-          $this->data['SERVERS']['SAMBA']['DEFAULT']= array(
-              "SID" => $this->current["SID"],
-              "RIDBASE" => $this->current["RIDBASE"]);
+
+    function get_departments($ignore_dn= "")
+    {
+        global $config;
+
+        /* Initialize result hash */
+        $result= array();
+        $administrative= array();
+        $result['/']= $this->current['BASE'];
+        $this->tdepartments= array();
+
+        /* Get all department types from department Management, to be able detect the department type.
+           -It is possible that differnty department types have the same name, 
+           in this case we have to mark the department name to be able to differentiate.
+           (e.g l=Name  or   o=Name)
+         */    
+        $types = departmentManagement::get_support_departments();
+
+        /* Create a list of attributes to fetch */
+        $ldap_values = array("objectClass","gosaUnitTag", "description");
+        $filter = "";
+        foreach($types as $type){
+            $ldap_values[] = $type['ATTR'];
+            $filter .= "(objectClass=".$type['OC'].")";
         }
-      }
+        $filter = "(&(objectClass=gosaDepartment)(|".$filter."))";
+
+        /* Get list of department objects */
+        $ldap= $this->get_ldap_link();
+        $ldap->cd ($this->current['BASE']);
+        $ldap->search ($filter, $ldap_values);
+        while ($attrs= $ldap->fetch()){
+
+            /* Detect department type */
+            $type_data = array();
+            foreach($types as $t => $data){
+                if(in_array_strict($data['OC'],$attrs['objectClass'])){
+                    $type_data = $data;
+                    break;
+                }
+            }
+
+            /* Unknown department type -> skip */
+            if(!count($type_data)) continue;
+
+            $dn= $ldap->getDN();
+            $this->tdepartments[$dn]= "";
+            $this->department_info[$dn]= array("img" => $type_data['IMG'],
+                    "description" => isset($attrs['description'][0])?$attrs['description'][0]:"",
+                    "name" => $attrs[$type_data['ATTR']][0]);
+
+            /* Save administrative departments */
+            if (in_array_ics("gosaAdministrativeUnit", $attrs['objectClass']) &&
+                    isset($attrs['gosaUnitTag'][0])){
+                $administrative[$dn]= $attrs['gosaUnitTag'][0];
+                $this->tdepartments[$dn]= $attrs['gosaUnitTag'][0];
+            }
+
+            if (in_array_ics("gosaAdministrativeUnitTag", $attrs['objectClass']) &&
+                    isset($attrs['gosaUnitTag'][0])){
+                $this->tdepartments[$dn]= $attrs['gosaUnitTag'][0];
+            }
+
+            if ($dn == $ignore_dn){
+                continue;
+            }
+            $c_dn = convert_department_dn($dn)." (".$type_data['ATTR'].")";
+
+            /* Only assign non-root departments */
+            if ($dn != $result['/']){
+                $result[$c_dn]= $dn;
+            }
+        }
+
+        $this->adepartments= $administrative;
+        $this->departments= $result;
     }
-  }
 
 
-  function get_departments($ignore_dn= "")
-  {
-    global $config;
+    function make_idepartments($max_size= 28)
+    {
+        global $config;
+        $base = $config->current['BASE'];
+        $qbase = preg_quote($base, '/');
+        $utags= isset($config->current['HONOURUNITTAGS']) && preg_match('/true/i', $config->current['HONOURUNITTAGS']);
 
-    /* Initialize result hash */
-    $result= array();
-    $administrative= array();
-    $result['/']= $this->current['BASE'];
-    $this->tdepartments= array();
+        $arr = array();
+        $ui= get_userinfo();
 
-    /* Get all department types from department Management, to be able detect the department type.
-        -It is possible that differnty department types have the same name, 
-         in this case we have to mark the department name to be able to differentiate.
-          (e.g l=Name  or   o=Name)
-     */    
-    $types = departmentManagement::get_support_departments();
-    
-    /* Create a list of attributes to fetch */
-    $ldap_values = array("objectClass","gosaUnitTag");
-    $filter = "";
-    foreach($types as $type){
-      $ldap_values[] = $type['ATTR'];
-      $filter .= "(objectClass=".$type['OC'].")";
-    }
-    $filter = "(&(objectClass=gosaDepartment)(|".$filter."))";
-
-    /* Get list of department objects */
-    $ldap= $this->get_ldap_link();
-    $ldap->cd ($this->current['BASE']);
-    $ldap->search ($filter, $ldap_values);
-    while ($attrs= $ldap->fetch()){
-
-      /* Detect department type */
-      $type_data = array();
-      foreach($types as $t => $data){
-        if(in_array($data['OC'],$attrs['objectClass'])){
-          $type_data = $data;
-          break;    
-        }
-      }
-
-      /* Unknown department type -> skip 
-       */
-      if(!count($type_data)) continue;
-
-      $dn= $ldap->getDN();
-      $this->tdepartments[$dn]= "";
-
-      /* Save administrative departments */
-      if (in_array_ics("gosaAdministrativeUnit", $attrs['objectClass']) &&
-          isset($attrs['gosaUnitTag'][0])){
-        $administrative[$dn]= $attrs['gosaUnitTag'][0];
-        $this->tdepartments[$dn]= $attrs['gosaUnitTag'][0];
-      }
-    
-      if (in_array_ics("gosaAdministrativeUnitTag", $attrs['objectClass']) &&
-          isset($attrs['gosaUnitTag'][0])){
-        $this->tdepartments[$dn]= $attrs['gosaUnitTag'][0];
-      }
-    
-      if ($dn == $ignore_dn){
-        continue;
-      }
+        $this->idepartments= array();
 
-      $c_dn = convert_department_dn($dn)." (".$type_data['ATTR'].")";
+        /* Create multidimensional array, with all departments. */
+        foreach ($this->departments as $key => $val){
 
-      /* Only assign non-root departments */
-      if ($dn != $result['/']){
-        $result[$c_dn]= $dn;
-      }
-    }
+            /* When using strict_units, filter non relevant parts */
+            if ($utags){
+                if ($ui->gosaUnitTag != '' && isset($this->tdepartments[$val]) &&
+                        $this->tdepartments[$val] != $ui->gosaUnitTag){
 
-    $this->adepartments= $administrative;
-    $this->departments= $result;
-  }
+#TODO: link with strict*
+#continue;
+                }
+            }
 
+            /* Split dn into single department pieces */
+            $elements = array_reverse(explode(',',preg_replace("/$qbase$/",'',$val)));                 
 
-  function make_idepartments($max_size= 28)
-  {
-    global $config;
-    $base = $config->current['BASE'];
+            /* Add last ou element of current dn to our array */
+            $last = &$arr;
+            foreach($elements as $key => $ele){
 
-    $arr = array();
-    $ui= get_userinfo();
+                /* skip empty */
+                if(empty($ele)) continue;
 
-    $this->idepartments= array();
+                /* Extract department name */          
+                $elestr = trim(preg_replace('/^[^=]*+=/','', $ele),',');
+                $nameA  = trim(preg_replace('/=.*$/','', $ele),',');
+                if($nameA != 'ou'){
+                    $nameA = " ($nameA)";
+                }else{
+                    $nameA = '';
+                }
 
-    /* Create multidimensional array, with all departments. */
-    foreach ($this->departments as $key => $val){
+                /* Add to array */     
+                if($key == (count($elements)-1)){
+                    $last[$elestr.$nameA]['ENTRY'] = $val;
+                }
 
-      /* When using strict_units, filter non relevant parts */
-      if (isset($config->current['STRICT_UNITS']) && preg_match('/true/i', $config->current['STRICT_UNITS'])){
-        if ($ui->gosaUnitTag != "" && isset($this->tdepartments[$val]) &&
-            $this->tdepartments[$val] != $ui->gosaUnitTag){
-#          continue;
+                /* Set next array appending position */
+                $last = &$last[$elestr.$nameA]['SUB'];
+            }
         }
-      }
 
-      /* Split dn into single department pieces.
-       */
-      $elements = array_reverse(split(",",preg_replace("/".normalizePreg($base)."$/","",$val)));               
 
-      /* Add last ou element of current dn to our array */
-      $last = &$arr;
-      foreach($elements as $key => $ele){
+        /* Add base entry */
+        $ret['/']['ENTRY']     = $base;
+        $ret['/']['SUB']       = $arr;
+        $this->idepartments= $this->generateDepartmentArray($ret,-1,$max_size);
+    }
 
-        /* skip empty */
-        if(empty($ele)) continue;
 
-        /* Extract department name */          
-        $elestr = trim(preg_replace("/^[^=]*+=/","", $ele),",");
-        $nameA  = trim(preg_replace("/=.*$/","", $ele),",");
-        if($nameA != "ou"){
-          $nameA = " (".$nameA.")";
-        }else{
-          $nameA = "";
-        }
-    
-
-        /* Add to array */     
-        if($key == (count($elements)-1)){
-          $last[$elestr.$nameA]['ENTRY'] = $val;
+    /* Creates display friendly output from make_idepartments */
+    function generateDepartmentArray($arr,$depth = -1,$max_size = 256)
+    {
+        $ret = array();
+        $depth ++;
+
+        /* Walk through array */       
+        ksort($arr);
+        foreach($arr as $name => $entries){
+
+            /* If this department is the last in the current tree position 
+             * remove it, to avoid generating output for it */
+            if(count($entries['SUB'])==0){
+                unset($entries['SUB']);
+            }
+
+            /* Fix name, if it contains a replace tag */
+            $name= preg_replace('/\\\\,/', ',', LDAP::fix($name));
+
+            /* Check if current name is too long, then cut it */
+            if(mb_strlen($name, 'UTF-8')> $max_size){
+                $name = mb_substr($name,0,($max_size-3), 'UTF-8')." ...";
+            }
+
+            /* Append the name to the list */  
+            if(isset($entries['ENTRY'])){
+                $a = "";
+                for($i = 0 ; $i < $depth ; $i ++){
+                    $a.=".";
+                }
+                $ret[$entries['ENTRY']]=$a."&nbsp;".$name;
+            }  
+
+            /* recursive add of subdepartments */
+            if(isset($entries['SUB'])){
+                $ret = array_merge($ret,$this->generateDepartmentArray($entries['SUB'],$depth,$max_size));
+            }
         }
 
-        /* Set next array appending position */
-        $last = &$last[$elestr.$nameA]['SUB'];
-      }
+        return($ret);
     }
 
+    /*! \brief Get all available shares defined in the current LDAP
+     *
+     *  This function returns all available Shares defined in this ldap
+     *  
+     *  \param boolean listboxEntry If set to TRUE, only name and path are
+     *  attached to the array. If FALSE, the whole entry will be parsed an atached to the result.
+     *  \return array
+     */
+    function getShareList($listboxEntry = false)
+    {
+        $tmp = get_sub_list("(&(objectClass=goShareServer)(goExportEntry=*))","server",get_ou("servgeneric", "serverRDN"),
+                $this->current['BASE'],array("goExportEntry","cn"), GL_NONE);
+        $return =array();
+        foreach($tmp as $entry){
+
+            if(isset($entry['goExportEntry']['count'])){
+                unset($entry['goExportEntry']['count']);
+            }
+            if(isset($entry['goExportEntry'])){
+                foreach($entry['goExportEntry'] as $export){
+                    $shareAttrs = explode("|",$export);
+                    if($listboxEntry) {
+                        $return[$shareAttrs[0]."|".$entry['cn'][0]] = $shareAttrs[0]." - ".$entry['cn'][0];
+                    }else{
+                        $return[$shareAttrs[0]."|".$entry['cn'][0]]['server']       = $entry['cn'][0];
+                        $return[$shareAttrs[0]."|".$entry['cn'][0]]['name']         = $shareAttrs[0];
+                        $return[$shareAttrs[0]."|".$entry['cn'][0]]['description']  = $shareAttrs[1];
+                        $return[$shareAttrs[0]."|".$entry['cn'][0]]['type']         = $shareAttrs[2];
+                        $return[$shareAttrs[0]."|".$entry['cn'][0]]['charset']      = $shareAttrs[3];
+                        $return[$shareAttrs[0]."|".$entry['cn'][0]]['path']         = $shareAttrs[4];
+                        $return[$shareAttrs[0]."|".$entry['cn'][0]]['option']       = $shareAttrs[5];
+                    }
+                }
+            }
+        }
+        return($return);
+    }
 
-    /* Add base entry */
-    $ret["/"]["ENTRY"]         = $base;
-    $ret["/"]["SUB"]   = $arr;
-    $this->idepartments= $this->generateDepartmentArray($ret,-1,$max_size);
-  }
-
-
-  /* Creates display friendly output from make_idepartments */
-  function generateDepartmentArray($arr,$depth = -1,$max_size)
-  {
-    $ret = array();
-    $depth ++;
 
-    /* Walk through array */   
-    ksort($arr);
-    foreach($arr as $name => $entries){
+    /*! \brief Return al available share servers
+     *
+     * This function returns all available ShareServers.
+     *
+     * \return array
+     * */
+    function getShareServerList()
+    {
+        global $config;
+        $return = array();
+        $ui = get_userinfo();
+        $base = $config->current['BASE'];
+        $res= get_sub_list("(&(objectClass=goShareServer)(goExportEntry=*))", "server",
+                get_ou("servgeneric", "serverRDN"), $base,array("goExportEntry","cn"),GL_NONE | GL_NO_ACL_CHECK);
+
+        foreach($res as $entry){
+
+            $acl = $ui->get_permissions($entry['dn'],"server","");
+            if(isset($entry['goExportEntry']['count'])){
+                unset($entry['goExportEntry']['count']);
+            }
+            foreach($entry['goExportEntry'] as $share){
+                $a_share = explode("|",$share);
+                $sharename = $a_share[0];
+                $data= array();
+                $data['NAME']   = $sharename;
+                $data['ACL']    = $acl;
+                $data['SERVER'] = $entry['cn']['0'];
+                $data['SHARE']  = $sharename;
+                $data['DISPLAY']= $entry['cn'][0]." [".$sharename."]";
+                $return[$entry['cn'][0]."|".$sharename] = $data;
+            }
+        }
+        return($return);
+    }
 
-      /* If this department is the last in the current tree position 
-       * remove it, to avoid generating output for it */
-      if(count($entries['SUB'])==0){
-        unset($entries['SUB']);
-      }
 
-      /* Fix name, if it contains a replace tag */
-      $name= preg_replace('/\\\\,/', ',', @LDAP::fix($name));
+    /*! \brief Checks if there's a bool property set in the configuration.
+     *
+     *  The function checks, weither the specified bool value is set to a true
+     *  value in the configuration file. 
+     *
+     *  Example usage:
+     *  \code
+     *  if ($this->config->boolValueIsTrue("core", "copyPaste")) {
+     *    echo "Copy Paste Handling is enabled";
+     *  }
+     *  \endcode
+     *
+     *  \param string 'class' The properties class. e.g. 'core','user','sudo',...
+     *  \param string 'value' Key in the given section, which is subject to check
+     *
+     *
+     * */
+    function boolValueIsTrue($class, $name)
+    {
+        return(preg_match("/true/i", $this->get_cfg_value($class,$name)));
+    }
 
-      /* Check if current name is too long, then cut it */
-      if(mb_strlen($name, 'UTF-8')> $max_size){
-        $name = mb_substr($name,0,($max_size-3), 'UTF-8')." ...";
-      }
 
-      /* Append the name to the list */        
-      if(isset($entries['ENTRY'])){
-        $a = "";
-        for($i = 0 ; $i < $depth ; $i ++){
-          $a.=".";
+    function __search(&$arr, $name, $return)
+    {
+        $return= strtoupper($return);
+        if (is_array($arr)){
+            foreach ($arr as &$a){
+                if (isset($a['CLASS']) && strcasecmp($name, $a['CLASS']) == 0){
+                    return(isset($a[$return])?$a[$return]:"");
+                } else {
+                    $res= $this->__search ($a, $name, $return);
+                    if ($res != ""){
+                        return $res;
+                    }
+                }
+            }
         }
-        $ret[$entries['ENTRY']]=$a."&nbsp;".$name;
-      }        
-
-      /* recursive add of subdepartments */
-      if(isset($entries['SUB'])){
-        $ret = array_merge($ret,$this->generateDepartmentArray($entries['SUB'],$depth,$max_size));
-      }
+        return ("");
     }
 
-    return($ret);
-  }
-
-  /* This function returns all available Shares defined in this ldap
-   * There are two ways to call this function, if listboxEntry is true
-   *  only name and path are attached to the array, in it is false, the whole
-   *  entry will be parsed an atached to the result.
-   */
-  function getShareList($listboxEntry = false)
-  {
-    $tmp = get_sub_list("(&(objectClass=goShareServer)(goExportEntry=*))","server",get_ou("serverou"),
-        $this->current['BASE'],array("goExportEntry","cn"), GL_NONE);
-    $return =array();
-    foreach($tmp as $entry){
-
-      if(isset($entry['goExportEntry']['count'])){
-        unset($entry['goExportEntry']['count']);
-      }
-      if(isset($entry['goExportEntry'])){
-        foreach($entry['goExportEntry'] as $export){
-          $shareAttrs = split("\|",$export);
-          if($listboxEntry) {
-            $return[$shareAttrs[0]."|".$entry['cn'][0]] = $shareAttrs[0]." - ".$entry['cn'][0];
-          }else{
-            $return[$shareAttrs[0]."|".$entry['cn'][0]]['server']       = $entry['cn'][0];
-            $return[$shareAttrs[0]."|".$entry['cn'][0]]['name']         = $shareAttrs[0];
-            $return[$shareAttrs[0]."|".$entry['cn'][0]]['description']  = $shareAttrs[1];
-            $return[$shareAttrs[0]."|".$entry['cn'][0]]['type']         = $shareAttrs[2];
-            $return[$shareAttrs[0]."|".$entry['cn'][0]]['charset']      = $shareAttrs[3];
-            $return[$shareAttrs[0]."|".$entry['cn'][0]]['path']         = $shareAttrs[4];
-            $return[$shareAttrs[0]."|".$entry['cn'][0]]['option']       = $shareAttrs[5];
-          }
-        }
-      }
-    }
-    return($return);
-  }
-
-
-  /* This function returns all available ShareServer */
-  function getShareServerList()
-  {
-    global $config;
-    $return = array();
-    $ui = get_userinfo();
-    $base = $config->current['BASE'];
-    $res= get_sub_list("(&(objectClass=goShareServer)(goExportEntry=*))", "server",
-          get_ou("serverou"), $base,array("goExportEntry","cn"),GL_NONE | GL_NO_ACL_CHECK);
-
-    foreach($res as $entry){
-        
-        $acl = $ui->get_permissions($entry['dn'],"server","");
-        if(isset($entry['goExportEntry']['count'])){
-          unset($entry['goExportEntry']['count']);
-        }
-        foreach($entry['goExportEntry'] as $share){
-          $a_share = split("\|",$share);
-          $sharename = $a_share[0];
-          $data= array();
-          $data['NAME']   = $sharename;
-          $data['ACL']    = $acl;
-          $data['SERVER'] = $entry['cn']['0'];
-          $data['SHARE']  = $sharename;
-          $data['DISPLAY']= $entry['cn'][0]." [".$sharename."]";
-          $return[$entry['cn'][0]."|".$sharename] = $data;
-        }
-    }
-    return($return);
-  }
 
+    /*! Outdated - try to use pluginEnabled, boolValueIsTrue or get_cfg_value instead. 
+     *
+     *  (Search for a configuration setting in different categories
+     *
+     *  Searches for the value of a given key in the configuration data.
+     *  Optionally the list of categories to search (tabs, main, locations) can
+     *  be specified. The first value that matches is returned.
+     *
+     *  Example usage:
+     *  \code
+     *  $postcmd = $this->config->search(get_class($this), "POSTCOMMAND", array("menu", "tabs"));
+     *  \endcode
+     *  ) 
+     *
+     * */
+    function search($class, $value, $categories= "")
+    {
+        if (is_array($categories)){
+            foreach ($categories as $category){
+                $res= $this->__search($this->data[strtoupper($category)], $class, $value);
+                if ($res != ""){
+                    return $res;
+                }
+            }
+        } else {
+            if ($categories == "") {
+                return $this->__search($this->data, $class, $value);
+            } else {
+                return $this->__search($this->data[strtoupper($categories)], $class, $value);
+            }
+        } 
+
+        return ("");
+    }
 
-  /* Check if there's the specified bool value set in the configuration */
-  function boolValueIsTrue($section, $value)
-  {
-    $section= strtoupper($section);
-    $value= strtoupper($value);
-    if (isset($this->data[$section][$value])){
-    
-      $data= $this->data[$section][$value];
-      if (preg_match("/^true$/i", $data) || preg_match("/yes/i", $data)){
-        return TRUE;
-      }
 
+    /*! \brief          Check whether a plugin is activated or not 
+     */ 
+    function pluginEnabled($class){
+        $tmp = $this->search($class, "CLASS",array('menu','tabs'));
+        return(!empty($tmp));
     }
 
-    return FALSE;
-  }
-
 
-  function __search(&$arr, $name, $return)
-  {
-    $return= strtoupper($return);
-    if (is_array($arr)){
-      foreach ($arr as &$a){
-        if (isset($a['CLASS']) && strcasecmp($name, $a['CLASS']) == 0){
-          return(isset($a[$return])?$a[$return]:"");
-        } else {
-          $res= $this->__search ($a, $name, $return);
-          if ($res != ""){
-            return $res;
-          }
+    /*! \brief Get a configuration value from the config
+     *
+     *  This returns a configuration value from the config. It either
+     *  uses the data of the current location ($this->current),
+     *  if it contains the value (e.g. current['BASE']) or otherwise
+     *  uses the data from the main configuration section.
+     *
+     *  If no value is found and an optional default has been specified,
+     *  then the default is returned.
+     *
+     *  \param string 'name' the configuration key (case-insensitive)
+     *  \param string 'default' a default that is returned, if no value is found
+     *
+     *
+     */
+    function get_cfg_value($class,$name, $default= NULL) 
+    {
+        // The default parameter is deprecated 
+        if($default != NULL){
+#        trigger_error("Third parameter 'default' is deprecated for function 'get_cfg_value'!");
         }
-      }
-    }
-    return ("");
-  }
 
+        // Return the matching property value if it exists.
+        if($this->configRegistry->propertyExists($class,$name)){
+            return($this->configRegistry->getPropertyValue($class,$name));
+        }
 
-  function search($class, $value, $categories= "")
-  {
-    if (is_array($categories)){
-      foreach ($categories as $category){
-        $res= $this->__search($this->data[strtoupper($category)], $class, $value);
-        if ($res != ""){
-          return $res;
+        // Show a warning in the syslog if there is an undefined property requested.
+        if($this->configRegistry->propertyInitializationComplete() && 
+                "{$class}::{$name}" != 'core::config' &&  // <--- This on is never set, only in gosa.conf. 
+                "{$class}::{$name}" != 'core::logging'){  // <--- This one may cause endless recursions in class_log.inc
+            new log("debug","","Unconfigured property: '{$class}::{$name}'",array(),'');
         }
-      }
-    } else {
-      if ($categories == "") {
-        return $this->__search($this->data, $class, $value);
-      } else {
-        return $this->__search($this->data[strtoupper($categories)], $class, $value);
-      }
-    } 
 
-    return ("");
-  }
+        // Try to find the property in the config file directly.
+        $name= strtoupper($name);
+        if (isset($this->current[$name])) return ($this->current[$name]);
+        if (isset($this->data["MAIN"][$name])) return ($this->data["MAIN"][$name]);
+        return ("");
+    }
 
 
-  function get_cfg_value($name, $default= "") {
-    $name= strtoupper($name);
+    /*! \brief Check if current configuration version matches the GOsa version
+     *
+     *  This function checks if the configuration file version matches the
+     *  version of the gosa version, by comparing it with the configuration
+     *  file version of the example gosa.conf that comes with GOsa.
+     *  If a version mismatch occurs an error is triggered.
+     * */
+    function check_config_version()
+    {
+        /* Skip check, if we've already mentioned the mismatch 
+         */
+        if(session::global_is_set("LastChecked") && session::global_get("LastChecked") == $this->config_version) return;
 
-    /* Check if we have a current value for $name */
-    if (isset($this->current[$name])){
-      return ($this->current[$name]);
-    }
+        /* Remember last checked version 
+         */
+        session::global_set("LastChecked",$this->config_version);
 
-    /* Check if we have a global value for $name */
-    if (isset($this->data["MAIN"][$name])){
-      return ($this->data["MAIN"][$name]);
-    }
+        $current = md5(file_get_contents(CONFIG_TEMPLATE_DIR."/gosa.conf"));
 
-    return ($default);
-  }
+        /* Check contributed config version and current config version.
+         */
+        if(($this->config_version == "NOT SET") || ($this->config_version != $current && !empty($this->config_version))){
+            msg_dialog::display(_("Configuration"),_("The configuration file you are using is outdated. Please move the GOsa configuration file away to run the GOsa setup again."));
+        }
+    }
 
 
-  function check_config_version()
-  {
-    /* Skip check, if we've already mentioned the mismatch 
-     */
-    if(session::is_set("LastChecked") && session::get("LastChecked") == $this->config_version) return;
-  
-    /* Remember last checked version 
+    /*! \brief Check if session lifetime matches session.gc_maxlifetime 
+     *
+     *  On debian systems the session files are deleted with
+     *  a cronjob, which detects all files older than specified 
+     *  in php.ini:'session.gc_maxlifetime' and removes them.
+     *  This function checks if the gosa.conf value matches the range
+     *  defined by session.gc_maxlifetime.
+     *
+     *  \return boolean TRUE or FALSE depending on weither the settings match
+     *  or not. If SESSIONLIFETIME is not configured in GOsa it always returns
+     *  TRUE.
      */
-    session::set("LastChecked",$this->config_version);
-
-    $current = md5(file_get_contents(CONFIG_TEMPLATE_DIR."/gosa.conf"));
+    function check_session_lifetime()
+    {
+        if(isset($this->data['MAIN']['SESSIONLIFETIME'])){
+            $cfg_lifetime = $this->data['MAIN']['SESSIONLIFETIME'];
+            $ini_lifetime = ini_get('session.gc_maxlifetime');
+            $deb_system   = file_exists('/etc/debian_version');
+            return(!($deb_system && ($ini_lifetime < $cfg_lifetime)));  
+        }else{
+            return(TRUE);
+        }
+    }
 
-    /* Check contributed config version and current config version.
-     */
-    if($this->config_version != $current && !empty($this->config_version)){
-      msg_dialog::display(_("Configuration"),_("The configuration file you are using seems to be outdated. Please move the GOsa configuration file away to run the GOsa setup again."));
+    /* Returns true if snapshots are enabled, and false if it is disalbed
+       There will also be some errors psoted, if the configuration failed */
+    function snapshotEnabled()
+    {
+        if($this->get_cfg_value("core","enableSnapshots") == "true"){
+
+            /* Check if the snapshot_base is defined */
+            if ($this->get_cfg_value("core","snapshotBase") == ""){
+
+                /* Send message if not done already */
+                if(!session::is_set("snapshotFailMessageSend")){
+                    session::set("snapshotFailMessageSend",TRUE);
+                    msg_dialog::display(_("Configuration error"),
+                            sprintf(_("The snapshot functionality is enabled, but the required variable %s is not set."),
+                                bold("snapshotBase")), ERROR_DIALOG);
+                }
+                return(FALSE);
+            }
+
+            /* Check if the snapshot_base is defined */
+            if (!is_callable("gzcompress")){
+
+                /* Send message if not done already */
+                if(!session::is_set("snapshotFailMessageSend")){
+                    session::set("snapshotFailMessageSend",TRUE);
+                    msg_dialog::display(_("Configuration error"),
+                            sprintf(_("The snapshot functionality is enabled, but the required compression module is missing. Please install %s."), bold("php5-zip / php5-gzip")), ERROR_DIALOG);
+                }
+                return(FALSE);
+            }
+
+            /* check if there are special server configurations for snapshots */
+            if ($this->get_cfg_value("core","snapshotURI") != ""){
+
+                /* check if all required vars are available to create a new ldap connection */
+                $missing = "";
+                foreach(array("snapshotURI","snapshotAdminDn","snapshotAdminPassword","snapshotBase") as $var){
+                    if($this->get_cfg_value("core",$var) == ""){
+                        $missing .= $var." ";
+
+                        /* Send message if not done already */
+                        if(!session::is_set("snapshotFailMessageSend")){
+                            session::set("snapshotFailMessageSend",TRUE);
+                            msg_dialog::display(_("Configuration error"),
+                                    sprintf(_("The snapshot functionality is enabled, but the required variable %s is not set."),
+                                        bold($missing)), ERROR_DIALOG);
+                        }
+                        return(FALSE);
+                    }
+                }
+            }
+            return(TRUE);
+        }
+        return(FALSE);
     }
-  }
-
-
-  /* On debian systems the session files are deleted with
-   *  a cronjob, which detects all files older than specified 
-   *  in php.ini:'session.gc_maxlifetime' and removes them.
-   * This function checks if the gosa.conf value matches the range
-   *  defined by session.gc_maxlifetime.
-   */
-  function check_session_lifetime()
-  {
-    $cfg_lifetime = $this->data['MAIN']['SESSION_LIFETIME'];
-    $ini_lifetime = ini_get('session.gc_maxlifetime');
-    $deb_system   = file_exists('/etc/debian_version');
-    return(!($deb_system && ($ini_lifetime < $cfg_lifetime)));  
-  }
+
 }
 
 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler: