Spark contacts validation with AD while adding

Hi ,

I am using spark 2.5.8 and opefire 3.6 in my organization.

we have connected openfire with our AD. following are the problem i am facing

  1. in Spark: while adding contact it allowing anonymus users. i want to validate users while adding with AD. if user exist then allow other wise deny.
  2. in conference, if i want to invite users it asking jid, i want, it should ask for AD users only
  3. while adding users its taking cn name as nick name , i need full name instead of that

Please let me know if anybody did some type of configuration and help me here urgently.

Thanks

Prashant