Saving edges and node from CertStream traffic.

This work extracts fingerprints and domains from CertStream data
structure received through the stream. It builds nodes and edges and
saves them to the relevant files. It sends this data to Kafka but no
logic is implemented at the exit of the broker yet.

models/main.go

@@ -11,12 +11,12 @@ import (
 )
 
 // BuildNode builds a node to send to MQ instance.
-func BuildNode(flag string, data string) *Node {
+func BuildNode(flag string, dataType string, data string) *Node {
 	t := time.Now()
 	rfc3339time := t.Format(time.RFC3339)
 	return &Node{
 		ID:       flag + "--" + uuid.New().String(),
-		Type:     flag,
+		Type:     dataType,
 		Data:     data,
 		Created:  rfc3339time,
 		Modified: rfc3339time,