//Extract last cn from DN. 
var input=extractCN(input);
return input;

function extractCN(userDN) {
    var result = [];
    var regexCN = /cn=(.*?),/m;
    try {        
        var cnMatch = regexCN.exec(userDN);
        var userCN = cnMatch[1];
        result.push({ key: userDN, value: userCN });
    } catch (error) {
        return error;
    }
    return result;
}

//Get localization from eDir attributes like nrfLocalizedDescr or nrfLocalizedName
//Returns "de" localization if aveilable. If not - returns "en"
let res=getAvailableLocalization(input,"de","en");
if(res && res.length>0){
    return res.toString();
}
return input;

function getAvailableLocalization(localString, firstLocalization, secondLocalization) {
    var res = ""
    var primaryLocalization = getLocalization(localString, firstLocalization)
    if (primaryLocalization && primaryLocalization.length > 0) {
        res = primaryLocalization;
    } else {        
        var secondaryLocalization = getLocalization(localString, secondLocalization)
        if (secondaryLocalization && secondaryLocalization.length > 0) {
            res = secondaryLocalization;
        }
    }
    return res;
}

function getLocalization(localizedAttr, localization) {    
    if (localizedAttr && localizedAttr.length > 0) {
        try {
        var locz = localizedAttr.split('|');        
            for (i in locz) {
                var currentLocalozation = locz[i].split("~");                
                if (currentLocalozation[0] === localization) {                   
                    return [currentLocalozation[1]];
                }
            }
        } catch (e) { }
    }
}

//Parse user DNs from XML like
/* <approval>
	<start_tm>20220514095402Z</start_tm>
	<process_id>498765468498bdfgkjdfgn6454</process_id>
	<activity>
		<user>cn=ysommer,ou=users,o=data</user>
		<action>approved</action>
		<action_tm>20220515095402Z</action_tm>
	</activity>
	<activity>
		<user>cn=afuhrmann,ou=users,o=data</user>
		<action>denied</action>
		<action_tm>20220515255402Z</action_tm>
	</activity>
	<end_tm>20220531184746Z</end_tm>
</approval>*/

//AVAILABLE since ACD v.3.2!!! due to returning array of objects- result.push({key:userDN, value:userCN}) 
//ACD of older varsions have to return string only!
var input=extractDN(input);
return input;

function extractDN(XMLtext) {
    var result = [];
    var regexApprover = /<user>(.*?)<\/user>/m;
    var regexCN=/cn=(.*?),/m;
    try {
        var splitVal = XMLtext.split("</activity>");
        for (var j = 0; j < splitVal.length - 1; j++) {
            path = splitVal[j];
            var approverMatch = regexApprover.exec(path);
            var userDN = approverMatch[1];  
            var cnMatch = regexCN.exec(userDN);
            var userCN = cnMatch[1];       
            result.push({key:userDN, value:userCN});
        }
    } catch (error) {       
        return error;
    }   
    return result;
}

//Parse DNs fron JSON of format:  {"reason":"GN-USR-Identity - orgunit add L40","approver":"cn=mlang,ou=users,o=data"}. "approver" may contain either string or array of strings
//AVAILABLE since ACD v.3.2!!! due to returning array of objects- result.push({key:userDN, value:userCN}) 
//ACD of older varsions have to return string only!
var input=extractDNfromJSON(input);
return input;

function extractDNfromJSON(nrfDescription) {
    var result = [];
    try {
        //console.log("Description: "+ nrfDescription)
        var approveJSON = JSON.parse(nrfDescription);
        var approvers = [];
        approvers.push(approveJSON.approver);
        for (i in approvers) {
            var regexCN=/cn=(.*?),/m;
            if (typeof approvers[i] !== "string") {                
                for (j in approvers[i]) {
                    var cnMatch = regexCN.exec(approvers[i][j]);
                    var userCN = cnMatch[1];                      
                    result.push({key:approvers[i][j], value:userCN});
                }
            } else {
                var cnMatch = regexCN.exec(approvers[i]);
                var userCN = cnMatch[1];                      
                result.push({key:approvers[i], value:userCN});
            }
        }       
    } catch (e) {
        console.log("nrfDescription: "+ nrfDescription)
        console.log(e);
    }
    return result;
}