[{user:"A",active_1:"true",active_2:"false",is_user:"true"},{user:"B",active_1:"false",active_2:"true",is_user:"true"},{user:"C",active_1:"false",active_2:"false",is_user:"true"}]

db.collection.aggregate([{"$group":{"count":{"$sum":{$cond:[{"$or":[{$eq:["$active_1","true"]},{$eq:["$active_2","true"]}]},1,0]}},"total":{"$sum":1},"_id":0}},])