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package processing
// DCSO FEVER
// Copyright (c) 2020, DCSO GmbH
import (
"encoding/json"
"math/rand"
"testing"
"time"
"github.com/DCSO/fever/types"
log "github.com/sirupsen/logrus"
)
type MockHostNamer struct{}
func (m *MockHostNamer) GetHostname(ipAddr string) ([]string, error) {
return []string{"foo.bar", "foo.baz"}, nil
}
func (m *MockHostNamer) Flush() {}
func makeRDNSEvent() types.Entry {
e := types.Entry{
SrcIP: "8.8.8.8",
SrcPort: int64(rand.Intn(60000) + 1025),
DestIP: "8.8.8.8",
DestPort: 53,
Timestamp: time.Now().Format(types.SuricataTimestampFormat),
EventType: "http",
Proto: "TCP",
}
eve := types.EveEvent{
Timestamp: &types.SuriTime{
Time: time.Now(),
},
EventType: e.EventType,
SrcIP: e.SrcIP,
SrcPort: int(e.SrcPort),
DestIP: e.DestIP,
DestPort: int(e.DestPort),
Proto: e.Proto,
}
json, err := json.Marshal(eve)
if err != nil {
log.Warn(err)
} else {
e.JSONLine = string(json)
}
return e
}
type SrcHostResponse struct {
Evidence []struct {
Hostname string `json:"rdns"`
} `json:"src_host"`
}
type DstHostResponse struct {
Evidence []struct {
Hostname string `json:"rdns"`
} `json:"dest_host"`
}
func TestRDNSHandler(t *testing.T) {
hn := MockHostNamer{}
rdnsh := MakeRDNSHandler(&hn)
e := makeRDNSEvent()
err := rdnsh.Consume(&e)
if err != nil {
t.Fatal(err)
}
var srchosts SrcHostResponse
err = json.Unmarshal([]byte(e.JSONLine), &srchosts)
if err != nil {
t.Fatal(err)
}
if len(srchosts.Evidence) != 2 {
t.Fatalf("src hosts length is not 2: length %d", len(srchosts.Evidence))
}
if srchosts.Evidence[0].Hostname != "foo.bar" {
t.Fatalf("wrong hostname:%s", srchosts.Evidence[0].Hostname)
}
if srchosts.Evidence[1].Hostname != "foo.baz" {
t.Fatalf("wrong hostname:%s", srchosts.Evidence[1].Hostname)
}
var desthosts DstHostResponse
err = json.Unmarshal([]byte(e.JSONLine), &desthosts)
if err != nil {
t.Fatal(err)
}
if len(desthosts.Evidence) != 2 {
t.Fatalf("dest hosts length is not 2: length %d", len(desthosts.Evidence))
}
if desthosts.Evidence[0].Hostname != "foo.bar" {
t.Fatalf("wrong hostname:%s", desthosts.Evidence[0].Hostname)
}
if desthosts.Evidence[1].Hostname != "foo.baz" {
t.Fatalf("wrong hostname:%s", desthosts.Evidence[1].Hostname)
}
}
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