LDAP for HMI Authentication

My customer needs a way to authenticate HMI users using LDAP to a Windows Active Domain Controller. 

The user would go to the HMI login page, put in their windows user name and password, then they can get access to the HMI to control the machine. 

I asked WebIQ if they could do this but they said no. 

I had a look at Codesys WebVisu but could not really see anything there. 

I am wondering if our Node-Red implementation has an LDAP client function? ( node-red-node-ldap (node) - Node-RED (nodered.org) )

If yes, then maybe we can implement a custom login system using WebIQ.  

Or is there a linux function (built in or added on) that could be used to do this with small amount of code?