Services/LDAP/classes/class.ilLDAPAttributeMapping.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
        |                                                                             |
        | 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 the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

class ilLDAPAttributeMapping
{
        private static $instances = array();
        private $server_id = null;
        private $db = null;
        private $mapping_rules = array();
        private $rules_for_update = array();
        private $lng;

        private function __construct($a_server_id)
        {
                global $ilDB,$lng;
                
                $this->db = $ilDB;
                $this->lng = $lng;
                $this->server_id = $a_server_id;
                $this->read();  
        }
        
        public static function _getInstanceByServerId($a_server_id)
        {
                if(array_key_exists($a_server_id,self::$instances) and is_object(self::$instances[$a_server_id]))
                {
                        return self::$instances[$a_server_id];
                }
                return self::$instances[$a_server_id] = new ilLDAPAttributeMapping($a_server_id);
        }
        

        public static function _delete($a_server_id)
        {
                global $ilDB;
                
                $query = "DELETE FROM ldap_attribute_mapping ".
                        "WHERE server_id =".$ilDB->quote($a_server_id);
                $res = $ilDB->query($query);
        }
        
        public static function _lookupGlobalRole($a_server_id)
        {
                global $ilDB;
                
                $query = "SELECT value FROM ldap_attribute_mapping ".
                        "WHERE server_id =".$ilDB->quote($a_server_id)." ".
                        "AND keyword = ".$ilDB->quote('global_role');

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        return (int) $row->value;               
                }
                return 0;
        }

        public function setRule($a_field_name,$a_ldap_attribute,$a_perform_update)
        {
                $this->mapping_rules[$a_field_name]['value'] = $a_ldap_attribute;
                $this->mapping_rules[$a_field_name]['performUpdate'] = $a_perform_update;
        }
        
        public function getRulesForUpdate()
        {
                return $this->rules_for_update ? $this->rules_for_update : array();
        }
        
        public function getFieldsForUpdate()
        {
                foreach($this->rules_for_update as $field => $rule)
                {
                        if(!strlen($rule['value']))
                        {
                                continue;
                        }
                        if(strpos($rule['value'],',') === false)
                        {
                                $fields[] = strtolower($rule['value']);
                                continue;
                        }
                        $tmp_fields = explode(',',$rule['value']);
                        $value = '';
                        foreach($tmp_fields as $tmp_field)
                        {
                                $fields[] = trim(strtolower($tmp_field));
                        }
                }
                return $fields ? $fields : array();
        }
        
        public function getFields()
        {
                foreach($this->mapping_rules as $field => $rule)
                {
                        if(!strlen($rule['value']))
                        {
                                continue;
                        }
                        if(strpos($rule['value'],',') === false)
                        {
                                $fields[] = strtolower($rule['value']);
                                continue;
                        }
                        $tmp_fields = explode(',',$rule['value']);
                        $value = '';
                        foreach($tmp_fields as $tmp_field)
                        {
                                $fields[] = trim(strtolower($tmp_field));
                        }
                }
                return $fields ? $fields : array();
        }
        
        public function getRules()
        {
                return $this->mapping_rules;
        }
        
        public function clearRules()
        {
                $this->mapping_rules = array();
        }
        
        public function save()
        {
                $this->delete();
                
                foreach($this->mapping_rules as $keyword => $options)
                {
                        $query = "INSERT INTO ldap_attribute_mapping SET ".
                                "server_id =".$this->db->quote($this->server_id).", ".
                                "keyword = ".$this->db->quote($keyword).", ".
                                "value = ".$this->db->quote($options['value']).", ".
                                "perform_update = ".$this->db->quote($options['performUpdate']);
                        $this->db->query($query);
                }
        }
        
        public function delete()
        {
                self::_delete($this->server_id);
        }
        
        public function enabledUpdate($a_field_name)
        {
                if(array_key_exists($a_field_name,$this->mapping_rules))
                {
                        return (bool) $this->mapping_rules[$a_field_name]['performUpdate'];
                }
                return false;
        }
        
        public function getValue($a_field_name)
        {
                if(array_key_exists($a_field_name,$this->mapping_rules))
                {
                        return $this->mapping_rules[$a_field_name]['value'];
                }
                return '';
        }       
        
        private function read()
        {
                $query = "SELECT * FROM ldap_attribute_mapping ".
                        "WHERE server_id =".$this->db->quote($this->server_id)." ";
                        
                $res = $this->db->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $this->mapping_rules[$row->keyword]['value'] = $row->value;
                        $this->mapping_rules[$row->keyword]['performUpdate'] = (bool) $row->perform_update;
                        
                        if($row->perform_update)
                        {
                                $this->rules_for_update[$row->keyword]['value'] = $row->value;
                        }
                }                       
        }
}
?>