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package processing
// DCSO FEVER
// Copyright (c) 2017, DCSO GmbH
import (
"fmt"
"math/rand"
"regexp"
"testing"
"time"
"github.com/DCSO/fever/types"
"github.com/DCSO/fever/util"
"github.com/NeowayLabs/wabbit"
"github.com/NeowayLabs/wabbit/amqptest"
"github.com/NeowayLabs/wabbit/amqptest/server"
)
type Test1Handler struct {
Vals []string
}
func (h *Test1Handler) GetName() string {
return "Test handler 1"
}
func (h *Test1Handler) GetEventTypes() []string {
return []string{"dns"}
}
func (h *Test1Handler) Consume(e *types.Entry) error {
h.Vals = append(h.Vals, e.JSONLine)
return nil
}
type Test2Handler struct {
Vals []string
}
func (h *Test2Handler) GetName() string {
return "Test handler 2"
}
func (h *Test2Handler) GetEventTypes() []string {
return []string{"http"}
}
func (h *Test2Handler) Consume(e *types.Entry) error {
h.Vals = append(h.Vals, e.JSONLine)
return nil
}
func TestHandlerDispatcherExampleHandler(t *testing.T) {
outChan := make(chan types.Entry)
closeChan := make(chan bool)
defaultSelection := make([]string, 0)
go func(closeChan chan bool, inChan chan types.Entry) {
for v := range inChan {
defaultSelection = append(defaultSelection, v.JSONLine)
}
close(closeChan)
}(closeChan, outChan)
ad := MakeHandlerDispatcher(outChan)
t1 := &Test1Handler{
Vals: make([]string, 0),
}
ad.RegisterHandler(t1)
t2 := &Test2Handler{
Vals: make([]string, 0),
}
ad.RegisterHandler(t2)
rand.Seed(time.Now().UTC().UnixNano())
// make test entries
typestrs := []string{"http", "dns", "flow", "foo"}
var createdEntries [10000]types.Entry
entries := make(map[string]([]string))
for i := 0; i < 10000; i++ {
myIdentifier := fmt.Sprintf("val%d", i)
myType := typestrs[rand.Intn(len(typestrs))]
createdEntries[i] = types.Entry{
EventType: myType,
JSONLine: myIdentifier,
}
if _, ok := entries[myType]; !ok {
entries[myType] = make([]string, 0)
}
entries[myType] = append(entries[myType], myIdentifier)
ad.Dispatch(&createdEntries[i])
}
close(outChan)
<-closeChan
if len(t1.Vals) != len(entries["dns"]) {
t.Fatalf("wrong number of 'dns' entries delivered to DNS handler (%d/%d)",
len(t1.Vals), len(entries["dns"]))
}
for i := 0; i < len(t1.Vals); i++ {
if t1.Vals[i] != entries["dns"][i] {
t.Fatalf("'dns' pair of entries differs: %s/%s", t1.Vals[i],
entries["dns"][i])
}
}
if len(t2.Vals) != len(entries["http"]) {
t.Fatalf("wrong number of 'http' entries delivered to HTTP handler (%d/%d)",
len(t2.Vals), len(entries["http"]))
}
for i := 0; i < len(t2.Vals); i++ {
if t2.Vals[i] != entries["http"][i] {
t.Fatalf("'http' pair of entries differs: %s/%s", t2.Vals[i],
entries["http"][i])
}
}
}
func TestHandlerDispatcherMonitoring(t *testing.T) {
serverURL := "amqp://sensor:sensor@127.0.0.1:9999/%2f/"
// start mock AMQP server
fakeServer := server.NewServer(serverURL)
fakeServer.Start()
defer fakeServer.Stop()
// set up consumer
results := make([]string, 0)
c, err := util.NewConsumer(serverURL, "nsm.test.metrics", "direct", "nsm.test.metrics.testqueue",
"", "", func(d wabbit.Delivery) {
results = append(results, string(d.Body()))
})
if err != nil {
t.Fatal(err)
}
// set up submitter
statssubmitter, err := util.MakeAMQPSubmitterWithReconnector(serverURL,
"nsm.test.metrics", true, func(url string) (wabbit.Conn, error) {
// we pass in a custom reconnector which uses the amqptest implementation
var conn wabbit.Conn
conn, err = amqptest.Dial(url)
return conn, err
})
if err != nil {
t.Fatal(err)
}
defer statssubmitter.Finish()
// create InfluxDB line protocol encoder/submitter
pse := util.MakePerformanceStatsEncoder(statssubmitter, 2*time.Second, false)
outChan := make(chan types.Entry)
closeChan := make(chan bool)
ad := MakeHandlerDispatcher(outChan)
ad.SubmitStats(pse)
ad.Run()
go func() {
for i := 0; i < 100; i++ {
ad.Dispatch(&types.Entry{
JSONLine: "foo",
})
ad.Dispatch(&types.Entry{
JSONLine: "bar",
})
ad.Dispatch(&types.Entry{
JSONLine: "baz",
})
time.Sleep(50 * time.Millisecond)
}
}()
go func(closeChan chan bool, inChan chan types.Entry) {
i := 0
for v := range inChan {
_ = v
i++
if i == 300 {
break
}
}
close(closeChan)
}(closeChan, outChan)
<-closeChan
close(outChan)
stopChan := make(chan bool)
ad.Stop(stopChan)
<-stopChan
c.Shutdown()
if len(results) == 0 {
t.Fatalf("unexpected result length: 0")
}
if match, _ := regexp.Match(fmt.Sprintf("^%s,[^ ]+ dispatch_calls_per_sec=[0-9]+", util.ToolName), []byte(results[0])); !match {
t.Fatalf("unexpected match content: %s", results[0])
}
}
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