diff --git a/infolog/inc/class.sifinfolog.inc.php b/infolog/inc/class.sifinfolog.inc.php
new file mode 100644
index 0000000000..38dc495189
--- /dev/null
+++ b/infolog/inc/class.sifinfolog.inc.php
@@ -0,0 +1,421 @@
+<?php
+	/**************************************************************************\
+	* eGroupWare - iCalendar Parser                                            *
+	* http://www.egroupware.org                                                *
+	* Written by Lars Kneschke <lkneschke@egroupware.org>                      *
+	* --------------------------------------------                             *
+	*  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.              *
+	\**************************************************************************/
+
+	/* $Id$ */
+
+	require_once PHPGW_SERVER_ROOT.'/infolog/inc/class.boinfolog.inc.php';
+	require_once EGW_SERVER_ROOT.'/phpgwapi/inc/horde/Horde/iCalendar.php';
+
+	class sifinfolog extends boinfolog
+	{
+		// array containing the result of the xml parser
+		var $_extractedSIFData;
+		
+		// array containing the current mappings(task or note)
+		var $_currentSIFMapping;
+		
+		// mappings for SIFTask to InfologTask
+		var $_sifTaskMapping = array(
+			'ActualWork'		=> '',
+			'BillingInformation'	=> '',
+			'Body'			=> 'info_des',
+			'Categories'		=> '',
+			'Companies'		=> '',
+			'Complete'		=> '',
+			'DateCompleted'		=> 'info_datecompleted',
+			'DueDate'		=> 'info_enddate',
+			'Importance'		=> 'info_priority',
+			'IsRecurring'		=> '',
+			'Mileage'		=> '',
+			'PercentComplete'	=> 'info_percent',
+			'ReminderSet'		=> '',
+			'ReminderTime'		=> '',
+			'Sensitivity'		=> 'info_access',
+			'StartDate'		=> 'info_startdate',
+			'Status'		=> 'info_status',
+			'Subject'		=> 'info_subject',
+			'TeamTask'		=> '',
+			'TotalWork'		=> '',
+			'RecurrenceType'	=> '',
+			'Interval'		=> '',
+			'MonthOfYear'		=> '',
+			'DayOfMonth'		=> '',
+			'DayOfWeekMask'		=> '',
+			'Instance'		=> '',
+			'PatternStartDate'	=> '',
+			'NoEndDate'		=> '',
+			'PatternEndDate'	=> '',
+			'Occurrences'		=> '',
+		);
+
+
+		
+		function startElement($_parser, $_tag, $_attributes) {
+		}
+
+		function endElement($_parser, $_tag) {
+			if(!empty($this->_currentSIFMapping[$_tag])) {
+				$this->_extractedSIFData[$this->_currentSIFMapping[$_tag]] = $this->sifData;
+			}
+			unset($this->sifData);
+		}
+		
+		function characterData($_parser, $_data) {
+			$this->sifData .= $_data;
+		}
+		
+		function siftoegw($_sifData, $_sifType) {
+			$sysCharSet	= $GLOBALS['egw']->translation->charset();
+			$sifData	= base64_decode($_sifData);
+
+			#$tmpfname = tempnam('/tmp/sync/contents','sift_');
+
+			#$handle = fopen($tmpfname, "w");
+			#fwrite($handle, $sifData);
+			#fclose($handle);
+
+			$this->_currentSIFMapping = $this->_sifTaskMapping;
+			$this->xml_parser = xml_parser_create('UTF-8');
+			xml_set_object($this->xml_parser, $this);
+			xml_parser_set_option($this->xml_parser, XML_OPTION_CASE_FOLDING, false);
+			xml_set_element_handler($this->xml_parser, "startElement", "endElement");
+			xml_set_character_data_handler($this->xml_parser, "characterData");
+			$this->strXmlData = xml_parse($this->xml_parser, $sifData);
+			if(!$this->strXmlData) {
+				error_log(sprintf("XML error: %s at line %d",
+					xml_error_string(xml_get_error_code($this->xml_parser)),
+					xml_get_current_line_number($this->xml_parser)));
+				return false;
+			}
+
+			if(!array($this->_extractedSIFData)) {
+				return false;
+			}
+
+			switch($_sifType) {
+				case 'task':
+					$taskData	= array();
+					$vcal		= &new Horde_iCalendar;
+					
+					$taskData['info_type'] = 'task';
+					
+					foreach($this->_extractedSIFData as $key => $value) {
+						$value = $GLOBALS['egw']->translation->convert($value, 'utf-8', $sysCharSet);
+						switch($key) {
+							case 'info_access':
+								$taskData[$key] = ((int)$value > 0) ? 'private' : 'public';
+								break;
+
+							case 'info_datecompleted':
+							case 'info_enddate':
+							case 'info_startdate':
+								if(!empty($value)) {
+									$taskData[$key] = $vcal->_parseDateTime($value);
+									// somehow the client always deliver a timestamp about 3538 seconds, when no startdate set.
+									if($taskData[$key] < 10000)
+										$taskData[$key] = '';
+								} else {
+									$taskData[$key] = '';
+								}
+								break;
+								
+
+							case 'info_priority':
+								$taskData[$key] = (int)$value;
+								break;
+								
+							case 'info_status':
+								$taskData[$key] = ((int)$value == 2) ? 'done' : 'ongoing';
+								switch($value) {
+									case '0':
+										$taskData[$key] = 'not-started';
+										break;
+									case '1':
+										$taskData[$key] = 'ongoing';
+										break;
+									case '2':
+										$taskData[$key] = 'done';
+										break;
+									case '4':
+										$taskData[$key] = 'cancelled';
+										break;
+									default:
+										$taskData[$key] = 'ongoing';
+										break;
+								}
+								break;
+								
+							default:
+								$taskData[$key] = $value;
+								break;
+						}
+					}
+					
+					return $taskData;
+					break;
+
+				default:
+					return false;
+			}
+		}
+		
+		function searchSIF($_sifData, $_sifType) {
+			if(!$egwData = $this->siftoegw($_sifData, $_sifType)) {
+				return false;
+			}
+
+			$filter = array('col_filter' => $egwData);
+			if($foundItems = $this->search($filter)) {
+				if(count($foundItems) > 0) {
+					$itemIDs = array_keys($foundItems);
+					return $itemIDs[0];
+				}
+			}
+			
+			return false;
+		}
+		
+		function addSIF($_sifData, $_id, $_sifType) {
+			if(!$egwData = $this->siftoegw($_sifData, $_sifType)) {
+				return false;
+			}
+
+			if($_id > 0)
+				$egwData['info_id'] = $_id;
+
+			$egwID = $this->write($egwData, false);
+
+			return $egwID;
+		}
+		
+		function getSIF($_id, $_sifType) {
+			switch($_sifType) {
+				case 'task':
+					if($taskData = $this->read($_id)) {
+						$sysCharSet	= $GLOBALS['egw']->translation->charset();
+						$vcal		= &new Horde_iCalendar;
+
+						$sifTask = '<task>';
+
+						foreach($this->_sifTaskMapping as $sifField => $egwField)
+						{
+							if(empty($egwField)) continue;
+		
+							$value = $GLOBALS['egw']->translation->convert($taskData[$egwField], $sysCharSet, 'utf-8');
+
+							switch($sifField) {
+								case 'DateCompleted':
+								case 'DueDate':
+								case 'StartDate':
+									if(!empty($value)) {
+										$value = $vcal->_exportDateTime($value);
+									}
+									$sifTask .= "<$sifField>$value</$sifField>";							
+									break;
+							
+								case 'Importance':
+									if($value > 3) $value = 3;
+									$sifTask .= "<$sifField>$value</$sifField>";
+									break;
+
+								case 'Sensitivity':
+									$value = ($value == 'private' ? '2' : '0');
+									$sifTask .= "<$sifField>$value</$sifField>";							
+									break;
+							
+								case 'Status':
+									switch($value) {
+										case 'cancelled':
+											$value = '4';
+											break;
+										case 'done':
+											$value = '2';
+											break;
+										case 'not-started':
+											$value = '0';
+											break;
+										case 'ongoing':
+											$value = '1';
+											break;
+										default:
+											$value = 1;
+											break;
+									}
+									$sifTask .= "<$sifField>$value</$sifField>";							
+									break;
+							
+								default:
+									$sifTask .= "<$sifField>$value</$sifField>";
+									break;
+							}
+						}
+
+						$sifTask .= '<ActualWork>0</ActualWork><IsRecurring>0</IsRecurring>';
+						return base64_encode($sifTask);
+
+/*						return base64_encode("<task>
+						<ActualWork>0</ActualWork>
+						<BillingInformation></BillingInformation>
+						<Body></Body>
+						<Categories></Categories>
+						<Companies></Companies>
+						<Complete>0</Complete>
+						<DateCompleted></DateCompleted>
+						<DueDate></DueDate>
+						<Importance>1</Importance>
+						<IsRecurring>0</IsRecurring>
+						<Mileage></Mileage>
+						<PercentComplete>0</PercentComplete>
+						<ReminderSet>0</ReminderSet>
+						<ReminderTime></ReminderTime>
+						<Sensitivity>0</Sensitivity>
+						<StartDate>45001231T230000Z</StartDate>
+						<Status>3</Status>
+						<Subject>TARAAA3</Subject>
+						<TeamTask>0</TeamTask>
+						<TotalWork>0</TotalWork>
+						<RecurrenceType>1</RecurrenceType>
+						<Interval>1</Interval>
+						<MonthOfYear>0</MonthOfYear>
+						<DayOfMonth>0</DayOfMonth>
+						<DayOfWeekMask>4</DayOfWeekMask>
+						<Instance>0</Instance>
+						<PatternStartDate>20060320T230000Z</PatternStartDate>
+						<NoEndDate>1</NoEndDate>
+						<PatternEndDate></PatternEndDate>
+						<Occurrences>10</Occurrences>
+						</task>
+						"); */
+					}
+					break;
+				
+				default;
+					return false;
+			}
+
+		}
+
+		function exportVTODO($_taskID, $_version)
+		{
+			$taskData = $this->read($_taskID);
+
+			$taskData = $GLOBALS['egw']->translation->convert($taskData,$GLOBALS['egw']->translation->charset(),'UTF-8');
+			
+			//_debug_array($taskData);
+			
+			$taskGUID = $GLOBALS['phpgw']->common->generate_uid('infolog_task',$_taskID);
+			
+			$vcal = &new Horde_iCalendar;
+			$vcal->setAttribute('VERSION',$_version);
+			$vcal->setAttribute('METHOD','PUBLISH');
+			
+			$vevent = Horde_iCalendar::newComponent('VTODO',$vcal);
+			
+			$options = array();
+			
+			$vevent->setAttribute('SUMMARY',$taskData['info_subject']);
+			$vevent->setAttribute('DESCRIPTION',$taskData['info_des']);
+			if($taskData['info_startdate'])
+				$vevent->setAttribute('DTSTART',$taskData['info_startdate']);
+			if($taskData['info_enddate'])
+				$vevent->setAttribute('DUE',$taskData['info_enddate']);
+			$vevent->setAttribute('DTSTAMP',time());
+			$vevent->setAttribute('CREATED',$GLOBALS['phpgw']->contenthistory->getTSforAction($eventGUID,'add'));
+			$vevent->setAttribute('LAST-MODIFIED',$GLOBALS['phpgw']->contenthistory->getTSforAction($eventGUID,'modify'));
+			$vevent->setAttribute('UID',$taskGUID);
+			$vevent->setAttribute('CLASS',(($taskData['info_access'] == 'public')?'PUBLIC':'PRIVATE'));
+			$vevent->setAttribute('STATUS',(($taskData['info_status'] == 'completed')?'COMPLETED':'NEEDS-ACTION'));
+			// 3=urgent => 1, 2=high => 2, 1=normal => 3, 0=low => 4
+			$vevent->setAttribute('PRIORITY',4-$taskData['info_priority']);
+
+			#$vevent->setAttribute('TRANSP','OPAQUE');
+			# status
+			# ATTENDEE
+			
+			$options = array('CHARSET' => 'UTF-8','ENCODING' => 'QUOTED-PRINTABLE');
+			$vevent->setParameter('SUMMARY', $options);
+			$vevent->setParameter('DESCRIPTION', $options);
+			
+			$vcal->addComponent($vevent);
+			
+			#print "<pre>";
+			#print $vcal->exportvCalendar();
+			#print "</pre>";
+			
+			return $vcal->exportvCalendar();
+		}
+		
+		function importVTODO(&$_vcalData, $_taskID=-1)
+		{
+			$botranslation  = CreateObject('phpgwapi.translation');
+			
+			$vcal = &new Horde_iCalendar;
+			if(!$vcal->parsevCalendar($_vcalData))
+			{
+				return FALSE;
+			}
+			$components = $vcal->getComponents();
+			if(count($components) > 0)
+			{
+				$component = $components[0];
+				if(is_a($component, 'Horde_iCalendar_vtodo'))
+				{
+					if($_taskID>0)
+						$taskData['info_id'] = $_taskID;
+					
+					foreach($component->_attributes as $attributes)
+					{
+						#print $attributes['name'].' - '.$attributes['value'].'<br>';
+						#$attributes['value'] = $GLOBALS['egw']->translation->convert($attributes['value'],'UTF-8');
+						switch($attributes['name'])
+						{
+							case 'CLASS':
+								$taskData['info_access']		= strtolower($attributes['value']);
+								break;
+							case 'DESCRIPTION':
+								$taskData['info_des']			= $attributes['value'];
+								break;
+							case 'DUE':
+								$taskData['info_enddate']		= $attributes['value'];
+								break;
+							case 'DTSTART':
+								$taskData['info_startdate']		= $attributes['value'];
+								break;
+							case 'PRIORITY':
+								// 1 => 3=urgent, 2 => 2=high, 3 => 1=normal, 4 => 0=low
+								if (1 <= $attributes['value'] && $attributes['value'] <= 4)
+								{
+									$taskData['info_priority']	= 4 - $attributes['value'];
+								}
+								else
+								{
+									$taskData['info_priority']	= 1;	// default = normal
+								}
+								break;
+							case 'STATUS':
+								$taskData['info_status']		= (strtolower($attributes['value']) == 'completed') ? 'done' : 'ongoing';
+								break;
+							case 'SUMMARY':
+								$taskData['info_subject']		= $attributes['value'];
+								break;
+						}
+					}
+					#_debug_array($eventData);exit;
+					return $this->write($taskData);
+				}
+			}
+			
+			return FALSE;
+		}
+		
+		
+	}
+?>