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mqtt_test.go
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mqtt_test.go
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/*
* Copyright (c) 2017, MegaEase
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http:https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package mqttproxy
import (
"bytes"
stdcontext "context"
"encoding/base64"
"errors"
"fmt"
"io"
"math"
"net"
"net/http"
"reflect"
"strconv"
"sync"
"testing"
"time"
paho "github.com/eclipse/paho.mqtt.golang"
"github.com/eclipse/paho.mqtt.golang/packets"
"github.com/megaease/easegress/v2/pkg/context"
"github.com/megaease/easegress/v2/pkg/filters"
_ "github.com/megaease/easegress/v2/pkg/filters/mqttclientauth"
"github.com/megaease/easegress/v2/pkg/logger"
"github.com/megaease/easegress/v2/pkg/object/pipeline"
"github.com/megaease/easegress/v2/pkg/option"
"github.com/megaease/easegress/v2/pkg/supervisor"
"github.com/megaease/easegress/v2/pkg/util/codectool"
"github.com/openzipkin/zipkin-go/propagation/b3"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func init() {
logger.InitNop()
filters.Register(mockKafkaKind)
filters.Register(mockMQTTFilterKind)
}
type mockMuxMapper struct {
MockFunc func(name string) (context.Handler, bool)
}
func (m *mockMuxMapper) GetHandler(name string) (context.Handler, bool) {
if m.MockFunc != nil {
return m.MockFunc(name)
}
return nil, false
}
var (
publishPipeline = "publish-pipeline"
connectPipeline = "connect-pipeline"
)
func getMQTTClient(t *testing.T, clientID, userName, password string, cleanSession bool) paho.Client {
opts := paho.NewClientOptions().AddBroker("tcp:https://0.0.0.0:1883").SetClientID(clientID).SetUsername(userName).SetPassword(password).SetCleanSession(cleanSession)
c := paho.NewClient(opts)
if token := c.Connect(); token.Wait() && token.Error() != nil {
t.Errorf("basic connect error for client <%s> with <%s>", clientID, token.Error())
}
return c
}
func getDefaultMQTTClient(t *testing.T, clientID string, cleanSession bool) paho.Client {
return getMQTTClient(t, clientID, "test", "test", cleanSession)
}
func getUnConnectClient(clientID, userName, password string, cleanSession bool) paho.Client {
opts := paho.NewClientOptions().AddBroker("tcp:https://0.0.0.0:1883").SetClientID(clientID).SetUsername(userName).SetPassword(password).SetCleanSession(cleanSession)
c := paho.NewClient(opts)
return c
}
func getMQTTSubscribeHandler(ch chan CheckMsg) paho.MessageHandler {
handler := func(client paho.Client, message paho.Message) {
msg := CheckMsg{
topic: message.Topic(),
payload: string(message.Payload()),
qos: int(message.Qos()),
}
ch <- msg
}
return handler
}
func getDefaultSpec() *Spec {
spec := &Spec{
Name: "test",
EGName: "test",
Port: 1883,
Rules: []*Rule{
{
When: &When{
PacketType: Publish,
},
Pipeline: publishPipeline,
},
},
}
return spec
}
func getBrokerFromSpec(spec *Spec, mapper context.MuxMapper) *Broker {
store := newStorage(nil)
broker := newBroker(spec, store, mapper, func(s, ss string) (map[string]string, error) {
m := map[string]string{
"test": "http:https://localhost:8888/mqtt",
"test1": "http:https://localhost:8889/mqtt",
}
urls := map[string]string{}
for k, v := range m {
if k != s {
urls[k] = v
}
}
return urls, nil
})
return broker
}
func getDefaultBroker(mapper context.MuxMapper) *Broker {
spec := getDefaultSpec()
return getBrokerFromSpec(spec, mapper)
}
func getConnectPipeline(t *testing.T) *pipeline.Pipeline {
yamlStr := `
name: %s
kind: Pipeline
filters:
- name: connect
kind: MockMQTTFilter
userName: test
password: test
`
yamlStr = fmt.Sprintf(yamlStr, connectPipeline)
super := supervisor.NewDefaultMock()
superSpec, err := super.NewSpec(yamlStr)
require.Nil(t, err)
pipe := &pipeline.Pipeline{}
pipe.Init(superSpec, nil)
return pipe
}
func getPublishPipeline(t *testing.T) (*pipeline.Pipeline, *MockKafka) {
yamlStr := `
name: %s
kind: Pipeline
protocol: MQTT
filters:
- name: publish
kind: MockKafka
`
yamlStr = fmt.Sprintf(yamlStr, publishPipeline)
super := supervisor.NewDefaultMock()
superSpec, err := super.NewSpec(yamlStr)
require.Nil(t, err)
pipe := &pipeline.Pipeline{}
pipe.Init(superSpec, nil)
filter := pipeline.MockGetFilter(pipe, "publish")
require.NotNil(t, filter)
backend := filter.(*MockKafka)
return pipe, backend
}
func checkSessionStore(broker *Broker, cid, topic string) error {
checkFn := func() error {
sessStr, err := broker.sessMgr.store.get(sessionStoreKey(cid))
if err != nil {
return err
}
if topic == "" {
return nil
}
sess := Session{
info: &SessionInfo{},
}
sess.decode(*sessStr)
for t := range sess.info.Topics {
if topic == t {
return nil
}
}
return fmt.Errorf("topic %v not in session %v", topic, cid)
}
for i := 0; i < 30; i++ {
if checkFn() == nil {
return nil
}
time.Sleep(time.Second)
}
return fmt.Errorf("session %v with topic %v not been stored", cid, topic)
}
func TestConnection(t *testing.T) {
pipe := getConnectPipeline(t)
defer pipe.Close()
spec := getDefaultSpec()
spec.Rules = append(spec.Rules, &Rule{
When: &When{
PacketType: Connect,
},
Pipeline: connectPipeline,
})
mapper := &mockMuxMapper{
MockFunc: func(name string) (context.Handler, bool) {
return pipe, true
},
}
broker := getBrokerFromSpec(spec, mapper)
defer broker.close()
c1 := getDefaultMQTTClient(t, "test", true)
c1.Disconnect(200)
c2 := getUnConnectClient("test", "fakeuser", "fakepasswd", true)
if token := c2.Connect(); token.Wait() && token.Error() == nil {
t.Errorf("non auth user should fail%s", token.Error())
}
c2.Disconnect(200)
}
func TestPublish(t *testing.T) {
pipe, backend := getPublishPipeline(t)
defer pipe.Close()
mapper := &mockMuxMapper{
MockFunc: func(name string) (context.Handler, bool) {
return pipe, true
},
}
broker := getDefaultBroker(mapper)
defer broker.close()
client := getMQTTClient(t, "test", "test", "test", true)
for i := 0; i < 5; i++ {
topic := "go-mqtt/sample"
text := fmt.Sprintf("qos0 msg #%d!", i)
token := client.Publish(topic, 0, false, text)
token.Wait()
p := backend.get()
if p.TopicName != topic || string(p.Payload) != text {
t.Errorf("get wrong publish")
}
}
for i := 0; i < 5; i++ {
topic := "go-mqtt/sample"
text := fmt.Sprintf("qos1 msg #%d!", i)
token := client.Publish(topic, 1, false, text)
token.Wait()
if token.Error() != nil {
t.Errorf("should support qos1")
}
p := backend.get()
if p.TopicName != topic || string(p.Payload) != text {
t.Errorf("get wrong publish")
}
}
client.Disconnect(200)
}
func TestSubUnsub(t *testing.T) {
mapper := &mockMuxMapper{}
broker := getDefaultBroker(mapper)
defer broker.close()
client := getMQTTClient(t, "test", "test", "test", true)
if token := client.Subscribe("go-mqtt/qos0", 0, nil); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos0 error %s", token.Error())
}
if token := client.Subscribe("go-mqtt/qos1", 1, nil); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos1 error %s", token.Error())
}
if token := client.Unsubscribe("go-mqtt/sample"); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos1 error %s", token.Error())
}
client.Disconnect(200)
}
func TestCleanSession(t *testing.T) {
mapper := &mockMuxMapper{}
broker := getDefaultBroker(mapper)
defer broker.close()
// client that set cleanSession
cid := "cleanSessionClient"
client := getMQTTClient(t, cid, "test", "test", true)
if err := checkSessionStore(broker, cid, ""); err != nil {
t.Fatal(err)
}
if token := client.Subscribe("test/cleanSession/0", 0, nil); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos0 error %s", token.Error())
}
if err := checkSessionStore(broker, cid, "test/cleanSession/0"); err != nil {
t.Fatal(err)
}
client.Disconnect(200)
c := broker.getClient(cid)
if c != nil {
c.closeAndDelSession()
}
subscribers, err := broker.topicMgr.findSubscribers("test/cleanSession/0")
if err != nil {
t.Errorf("findSubscribers for topic test/cleanSession/0 failed, %v", err)
}
if _, ok := subscribers[cid]; ok {
t.Errorf("topicMgr is not cleaned when client %v close connection", subscribers)
}
_, err = broker.sessMgr.store.get(sessionStoreKey(cid))
if err == nil {
t.Errorf("not clean DB when cleanSession is set, potential resource wasted")
}
// client that not set cleanSession, getMQTTClient last parameter set to false
cid = "notCleanSessionClient"
client = getMQTTClient(t, cid, "test", "test", false)
if err := checkSessionStore(broker, cid, ""); err != nil {
t.Fatal(err)
}
if token := client.Subscribe("test/cleanSession/0", 0, nil); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos0 error %s", token.Error())
}
if err := checkSessionStore(broker, cid, "test/cleanSession/0"); err != nil {
t.Fatal(err)
}
// make sure before disconnect, session and subscribe topic has been stored in storage
for i := 0; i < 10; i++ {
time.Sleep(30 * time.Millisecond)
yamlStr, err := broker.sessMgr.store.get(sessionStoreKey(cid))
if err != nil {
continue
}
session := &Session{
info: &SessionInfo{},
}
session.decode(*yamlStr)
if len(session.info.Topics) == 1 {
break
}
}
client.Disconnect(200)
c = broker.getClient(cid)
if c != nil {
c.closeAndDelSession()
}
subscribers, err = broker.topicMgr.findSubscribers("test/cleanSession/0")
if err != nil {
t.Errorf("findSubscribers for topic test/cleanSession/0 failed, %v", err)
}
if _, ok := subscribers[cid]; ok {
t.Errorf("topicMgr is not cleaned when client %v close connection", subscribers)
}
_, err = broker.sessMgr.store.get(sessionStoreKey(cid))
if err != nil {
t.Errorf("clean DB when cleanSession is not set")
}
// check not clean session work when client come.
client = getMQTTClient(t, cid, "test", "test", false)
// publish topic to make sure client read loop start
token := client.Publish("topic", 1, false, "text")
token.Wait()
if token.Error() != nil {
t.Errorf("client publish message failed %v", token.Error())
}
_, err = broker.topicMgr.findSubscribers("test/cleanSession/0")
if err != nil {
t.Errorf("findSubscribers for topic test/cleanSession/0 failed, %v", err)
}
// if _, ok := subscribers[cid]; !ok {
// t.Errorf("topicMgr should contain topic test/cleanSession/0 when client reconnect, but got %v", subscribers)
// }
_, err = broker.sessMgr.store.get(sessionStoreKey(cid))
if err != nil {
t.Errorf("clean DB when cleanSession is not set")
}
client.Disconnect(200)
}
func TestMultiClientPublish(t *testing.T) {
pipe, backend := getPublishPipeline(t)
defer pipe.Close()
mapper := &mockMuxMapper{
MockFunc: func(name string) (context.Handler, bool) {
return pipe, true
},
}
broker := getDefaultBroker(mapper)
defer broker.close()
var wg sync.WaitGroup
clientNum := 30
msgNum := 50
for i := 0; i < clientNum; i++ {
wg.Add(1)
go func(i int) {
defer wg.Done()
cid := fmt.Sprintf("test_%d", i)
client := getMQTTClient(t, cid, "test", "test", true)
for j := 0; j < msgNum; j++ {
topic := cid
text := fmt.Sprintf("%d", j)
token := client.Publish(topic, 1, false, text)
token.Wait()
if token.Error() != nil {
t.Errorf("client <%d> publish failed, <%s>", i, token.Error())
}
}
client.Disconnect(200)
}(i)
}
wg.Add(1)
go func() {
defer wg.Done()
ans := make(map[string]int)
for i := 0; i < clientNum*msgNum; i++ {
p := backend.get()
num, _ := strconv.Atoi(string(p.Payload))
if val, ok := ans[p.TopicName]; ok {
if num != val+1 {
t.Errorf("received publish not in order")
}
ans[p.TopicName] = num
} else {
if num != 0 {
t.Errorf("received publish not in order")
}
ans[p.TopicName] = num
}
}
}()
wg.Wait()
}
func TestSession(t *testing.T) {
mapper := &mockMuxMapper{}
broker := getDefaultBroker(mapper)
defer broker.close()
client := getDefaultMQTTClient(t, "test", true)
// sub go-mqtt/qos0 and check
if token := client.Subscribe("go-mqtt/qos0", 0, nil); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos0 error %s", token.Error())
}
subs, qoss, _ := broker.sessMgr.get("test").allSubscribes()
if subs[0] != "go-mqtt/qos0" || qoss[0] != 0 {
t.Errorf("session error")
}
// sub go-mqtt/qos1 and check
if token := client.Subscribe("go-mqtt/qos1", 1, nil); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos1 error %s", token.Error())
}
subs, qoss, _ = broker.sessMgr.get("test").allSubscribes()
if len(subs) != 2 || len(qoss) != 2 {
t.Errorf("session error")
}
// unsub go-mqtt/qos0 and check
if token := client.Unsubscribe("go-mqtt/qos0"); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos1 error %s", token.Error())
}
subs, qoss, _ = broker.sessMgr.get("test").allSubscribes()
if subs[0] != "go-mqtt/qos1" || qoss[0] != 1 {
t.Errorf("session error")
}
sessMgr := broker.sessMgr
sess := Session{
info: &SessionInfo{
EGName: "eg",
Name: "mqtt",
ClientID: "checkStoreGet",
Topics: map[string]int{"a": 1},
CleanFlag: false,
},
}
str, _ := sess.encode()
sessMgr.store.put(sessionStoreKey("checkStoreGet"), str)
newSess := sessMgr.get("checkStoreGet")
if !reflect.DeepEqual(newSess.info, sess.info) {
t.Errorf("sessMgr get wrong sess %v, %v", sess.info, newSess.info)
}
client.Disconnect(200)
}
func TestSpec(t *testing.T) {
yamlStr := `
port: 1883
auth:
- userName: test
passBase64: dGVzdA==
- userName: admin
passBase64: YWRtaW4=
useTLS: true
certificate:
- name: cert1
cert: balabala
key: keyForbalabala
- name: cert2
cert: foo
key: bar
`
got := Spec{}
err := codectool.Unmarshal([]byte(yamlStr), &got)
if err != nil {
t.Errorf("yaml unmarshal failed, err:%v", err)
}
want := Spec{
Port: 1883,
UseTLS: true,
Certificate: []Certificate{
{"cert1", "balabala", "keyForbalabala"},
{"cert2", "foo", "bar"},
},
}
if !reflect.DeepEqual(want, got) {
t.Errorf("got:<%#v>\n want:<%#v>\n", got, want)
}
}
type CheckMsg struct {
topic string
payload string
qos int
}
func TestSendMsgBack(t *testing.T) {
clientNum := 10
msgNum := 40
subscribeCh := make(chan CheckMsg, 100)
var wg sync.WaitGroup
pipe, backend := getPublishPipeline(t)
defer pipe.Close()
// make broker
mapper := &mockMuxMapper{
MockFunc: func(name string) (context.Handler, bool) {
return pipe, true
},
}
broker := getDefaultBroker(mapper)
defer broker.close()
// subscribe handler
handler := getMQTTSubscribeHandler(subscribeCh)
// make client and subscribe different topic
clients := []paho.Client{}
for i := 0; i < clientNum; i++ {
cid := fmt.Sprintf("test_%d", i)
c := getMQTTClient(t, cid, "test", "test", true)
if token := c.Subscribe(cid, 1, handler); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos1 error %s", token.Error())
}
clients = append(clients, c)
}
fmt.Printf("TestSendMsgBack: finished get clients\n")
// publish msg and send msg back
for i := 0; i < clientNum; i++ {
wg.Add(2)
go func(c paho.Client) {
defer wg.Done()
r := c.OptionsReader()
for j := 0; j < msgNum; j++ {
topic := r.ClientID()
text := fmt.Sprintf("%d", j)
token := c.Publish(topic, 1, false, text)
token.Wait()
if token.Error() != nil {
t.Errorf("client <%d> publish failed, <%s>", i, token.Error())
}
}
fmt.Printf("client %s finished publish\n", r.ClientID())
}(clients[i])
go func(c paho.Client) {
defer wg.Done()
r := c.OptionsReader()
for j := 0; j < msgNum; j++ {
topic := r.ClientID()
text := fmt.Sprintf("sub %d", j)
broker.sendMsgToClient(nil, topic, []byte(text), QoS1)
}
}(clients[i])
}
fmt.Printf("TestSendMsgBack: finished publish and send msg back\n")
wg.Add(2)
// receive msg
go func() {
defer func() {
fmt.Printf("all msg received!\n")
wg.Done()
}()
ans := make(map[string]int)
for i := 0; i < clientNum*msgNum; i++ {
p := backend.get()
num, _ := strconv.Atoi(string(p.Payload))
if val, ok := ans[p.TopicName]; ok {
if num != val+1 {
t.Errorf("received publish not in order")
}
ans[p.TopicName] = num
} else {
if num != 0 {
t.Errorf("received publish not in order")
}
ans[p.TopicName] = num
}
}
}()
// check get enough msg, there may be resend
checkAns := func(ans map[string]map[string]struct{}) bool {
if len(ans) < clientNum {
return false
}
for _, v := range ans {
if len(v) < msgNum {
return false
}
}
return true
}
// receive subscribes
go func() {
defer func() {
fmt.Printf("all subscribes received!\n")
wg.Done()
}()
ans := make(map[string]map[string]struct{})
for {
if checkAns(ans) {
break
}
msg := <-subscribeCh
if _, ok := ans[msg.topic]; ok {
ans[msg.topic][msg.payload] = struct{}{}
} else {
ans[msg.topic] = make(map[string]struct{})
ans[msg.topic][msg.payload] = struct{}{}
}
}
for _, v := range ans {
if len(v) != msgNum {
t.Errorf("not receive right number of msg")
}
}
}()
fmt.Printf("TestSendMsgBack: wait received all msg and subscribes\n")
// close
wg.Wait()
fmt.Printf("TestSendMsgBack: received all msg and subscribes\n")
done := make(chan struct{})
go func() {
for {
select {
case <-done:
return
case <-subscribeCh:
}
}
}()
for _, c := range clients {
go c.Disconnect(200)
}
close(done)
}
func TestYamlEncodeDecode(t *testing.T) {
mapper := &mockMuxMapper{}
broker := getDefaultBroker(mapper)
defer broker.close()
// old session
s := &Session{
broker: broker,
info: &SessionInfo{
Topics: map[string]int{"abc": 1, "def": 2},
ClientID: "test",
CleanFlag: true,
},
}
str, err := s.encode()
if err != nil {
t.Errorf("%s", err.Error())
}
// new session
newS := Session{
info: &SessionInfo{},
}
if err := newS.decode(str); err != nil {
t.Errorf("decode error")
}
if !reflect.DeepEqual(newS.info.Topics, s.info.Topics) || newS.info.ClientID != s.info.ClientID || newS.info.CleanFlag != s.info.CleanFlag {
t.Errorf("encode decode error")
}
}
type testServer struct {
mux *http.ServeMux
srv http.Server
addr string
}
func newServer(addr string) *testServer {
mux := http.NewServeMux()
srv := http.Server{Addr: addr, Handler: mux}
ts := &testServer{
mux: mux,
srv: srv,
addr: addr,
}
return ts
}
func (ts *testServer) addHandlerFunc(pattern string, f http.HandlerFunc) {
ts.mux.HandleFunc(pattern, f)
}
func (ts *testServer) start() error {
go ts.srv.ListenAndServe()
// Poll server until it is ready
for t := 0; t < 25; t++ {
time.Sleep(50 * time.Millisecond)
req, _ := http.NewRequest(http.MethodGet, "http:https://localhost"+ts.addr, nil)
_, err := http.DefaultClient.Do(req)
if err == nil {
return nil
}
}
return errors.New("Server did not respond")
}
func (ts *testServer) shutdown() {
ts.srv.Shutdown(stdcontext.Background())
}
func topicsPublish(t *testing.T, data HTTPJsonData) int {
jsonData, err := codectool.MarshalJSON(data)
if err != nil {
t.Errorf("json marshal error")
}
req, err := http.NewRequest(http.MethodPost, "http:https://localhost:8888/mqtt", bytes.NewBuffer(jsonData))
if err != nil {
t.Errorf("request mqtt error")
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
t.Errorf("mqtt client do error, %s", err.Error())
}
defer resp.Body.Close()
return resp.StatusCode
}
func TestHTTPRequest(t *testing.T) {
mapper := &mockMuxMapper{}
broker := getDefaultBroker(mapper)
defer broker.close()
srv := newServer(":8888")
srv.addHandlerFunc("/mqtt", broker.httpTopicsPublishHandler)
if err := srv.start(); err != nil {
t.Errorf("couldn't start server: %s", err)
}
// GET request should fail
req, _ := http.NewRequest(http.MethodGet, "http:https://localhost:8888/mqtt", nil)
resp, err := http.DefaultClient.Do(req)
if err != nil {
t.Errorf("client do req error %s", err)
}
if resp.StatusCode == http.StatusOK {
t.Errorf("http GET should fail, only POST permitted")
}
resp.Body.Close()
// non json data should fail
req, err = http.NewRequest(http.MethodPost, "http:https://localhost:8888/mqtt", bytes.NewBuffer([]byte("non json")))
if err != nil {
t.Errorf("request mqtt error")
}
resp, err = http.DefaultClient.Do(req)
if err != nil {
t.Errorf("mqtt client do error")
}
if resp.StatusCode == http.StatusOK {
t.Errorf("http post should put json data")
}
resp.Body.Close()
// err qos should fail
data := HTTPJsonData{
Topic: "topic",
QoS: 10,
Payload: "data",
Base64: false,
}
statusCode := topicsPublish(t, data)
if statusCode == http.StatusOK {
t.Errorf("qos must be 0 or 1 or 2")
}
// base64 flag
data = HTTPJsonData{
Topic: "topic",
QoS: 10,
Payload: "data",
Base64: true,
}
statusCode = topicsPublish(t, data)
if statusCode == http.StatusOK {
t.Errorf("not use base64 but set base64 true")
}
// success
data = HTTPJsonData{
Topic: "topic",
QoS: 1,
Payload: "data",
Base64: false,
}
statusCode = topicsPublish(t, data)
if statusCode != http.StatusOK {
t.Errorf("request should success")
}
data = HTTPJsonData{
Topic: "topic",
QoS: 1,
Payload: base64.StdEncoding.EncodeToString([]byte("data")),
Base64: true,
}
statusCode = topicsPublish(t, data)
if statusCode != http.StatusOK {
t.Errorf("request should success")
}
srv.shutdown()
}
func TestHTTPPublish(t *testing.T) {
mapper := &mockMuxMapper{}
broker := getDefaultBroker(mapper)
defer broker.close()
srv := newServer(":8888")
srv.addHandlerFunc("/mqtt", broker.httpTopicsPublishHandler)
srv.start()
subscribeCh := make(chan CheckMsg)
handler := getMQTTSubscribeHandler(subscribeCh)
client := getMQTTClient(t, "test", "test", "test", true)
if token := client.Subscribe("test", 1, handler); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos1 error %s", token.Error())
}
numMsg := 200
go func() {
for i := 0; i < numMsg; i++ {
data := HTTPJsonData{
Topic: "test",
QoS: 1,
Payload: base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%d", i))),
Base64: true,
}
func(data HTTPJsonData) {
code := topicsPublish(t, data)
if code != http.StatusOK {
t.Errorf("wrong status code return")
}
}(data)
}
}()
ans := map[string]struct{}{}
for len(ans) < numMsg {
msg := <-subscribeCh
if msg.topic != "test" {
t.Errorf("wrong topic received")
}
ans[msg.payload] = struct{}{}
}
done := make(chan struct{})
go func() {
for {
select {
case <-done:
return
case <-subscribeCh:
}
}
}()
client.Disconnect(200)
srv.shutdown()
close(done)
}
func TestHTTPTransfer(t *testing.T) {
mapper := &mockMuxMapper{}
broker0 := getDefaultBroker(mapper)
srv0 := newServer(":8888")
srv0.addHandlerFunc("/mqtt", broker0.httpTopicsPublishHandler)
srv0.start()
spec := getDefaultSpec()
spec.EGName = "test1"
spec.Name = "test1"
spec.Port = 1884
broker1 := getBrokerFromSpec(spec, nil)
srv1 := newServer(":8889")
srv1.addHandlerFunc("/mqtt", broker1.httpTopicsPublishHandler)
srv1.start()
// auto connect to broker0, not broker1
ch := make(chan CheckMsg)
handler := getMQTTSubscribeHandler(ch)
mqttClient := getMQTTClient(t, "client", "test", "test", true)
if token := mqttClient.Subscribe("client", 1, handler); token.Wait() && token.Error() != nil {
t.Errorf("subscribe qos1 error %s", token.Error())
}
// set data to broker1
data := HTTPJsonData{
Topic: "client",
QoS: 1,
Payload: "data",
Base64: false,
}
jsonData, _ := codectool.MarshalJSON(data)
req, _ := http.NewRequest(http.MethodPost, "http:https://localhost:8889/mqtt", bytes.NewBuffer(jsonData))
resp, err := http.DefaultClient.Do(req)
if err != nil {
t.Errorf("mqtt client do error")
}
defer resp.Body.Close()
// get data from client who connect to broker0
msg := <-ch
if msg.topic != "client" || msg.payload != "data" {
t.Errorf("wrong msg")
}
go func() {
msg = <-ch
t.Errorf("receive data again, may transfer data for multi times")
}()
broker0.close()
broker1.close()
srv0.shutdown()
srv1.shutdown()