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client_test.go
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package centrifuge
import (
"context"
"encoding/json"
"io"
"strings"
"testing"
"time"
"github.com/centrifugal/protocol"
"github.com/dgrijalva/jwt-go/v4"
"github.com/google/uuid"
"github.com/stretchr/testify/require"
)
func getConnToken(user string, exp int64) string {
claims := jwt.MapClaims{"sub": user}
if exp > 0 {
claims["exp"] = exp
}
t, err := jwt.NewWithClaims(jwt.SigningMethodHS256, claims).SignedString([]byte("secret"))
if err != nil {
panic(err)
}
return t
}
func getSubscribeToken(channel string, client string, exp int64) string {
claims := jwt.MapClaims{"channel": channel, "client": client}
if exp > 0 {
claims["exp"] = exp
}
t, err := jwt.NewWithClaims(jwt.SigningMethodHS256, claims).SignedString([]byte("secret"))
if err != nil {
panic(err)
}
return t
}
func testReplyWriter(replies *[]*protocol.Reply) *replyWriter {
return &replyWriter{
write: func(rep *protocol.Reply) error {
*replies = append(*replies, rep)
return nil
},
flush: func() error {
return nil
},
}
}
func TestClientEventHub(t *testing.T) {
h := ClientEventHub{}
handler := func(e DisconnectEvent) DisconnectReply {
return DisconnectReply{}
}
h.Disconnect(handler)
require.NotNil(t, h.disconnectHandler)
}
func TestSetCredentials(t *testing.T) {
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{})
val := newCtx.Value(credentialsContextKey).(*Credentials)
require.NotNil(t, val)
}
func TestNewClient(t *testing.T) {
node := nodeWithMemoryEngine()
transport := newTestTransport()
client, err := NewClient(context.Background(), node, transport)
require.NoError(t, err)
require.NotNil(t, client)
}
func TestClientInitialState(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
transport := newTestTransport()
client, _ := NewClient(context.Background(), node, transport)
require.Equal(t, client.uid, client.ID())
require.NotNil(t, "", client.user)
require.Equal(t, 0, len(client.Channels()))
require.Equal(t, ProtocolTypeJSON, client.Transport().Protocol())
require.Equal(t, "test_transport", client.Transport().Name())
require.False(t, client.closed)
require.False(t, client.authenticated)
require.Nil(t, client.disconnect)
}
func TestClientClosedState(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
transport := newTestTransport()
client, _ := NewClient(context.Background(), node, transport)
err := client.Close(nil)
require.NoError(t, err)
require.True(t, client.closed)
}
func TestClientConnectNoCredentialsNoToken(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
transport := newTestTransport()
client, _ := NewClient(context.Background(), node, transport)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{}, rw)
require.NotNil(t, disconnect)
require.Equal(t, disconnect, DisconnectBadRequest)
}
func TestClientConnectNoCredentialsNoTokenInsecure(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
config.ClientInsecure = true
_ = node.Reload(config)
transport := newTestTransport()
client, _ := NewClient(context.Background(), node, transport)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{}, rw)
require.Nil(t, disconnect)
require.Nil(t, replies[0].Error)
result := extractConnectResult(replies, client.Transport().Protocol())
require.NotEmpty(t, result.Client)
require.Empty(t, client.UserID())
}
func TestClientConnectNoCredentialsNoTokenAnonymous(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
config.ClientAnonymous = true
_ = node.Reload(config)
transport := newTestTransport()
client, _ := NewClient(context.Background(), node, transport)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{}, rw)
require.Nil(t, disconnect)
require.Nil(t, replies[0].Error)
result := extractConnectResult(replies, client.Transport().Protocol())
require.NotEmpty(t, result.Client)
require.Empty(t, client.UserID())
}
func TestClientConnectWithMalformedToken(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
transport := newTestTransport()
client, _ := NewClient(context.Background(), node, transport)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{
Token: "bad bad token",
}, rw)
require.NotNil(t, disconnect)
require.Equal(t, disconnect, DisconnectInvalidToken)
}
func TestClientConnectWithValidToken(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
config.TokenHMACSecretKey = "secret"
_ = node.Reload(config)
transport := newTestTransport()
client, _ := NewClient(context.Background(), node, transport)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{
Token: getConnToken("42", 0),
}, rw)
require.Nil(t, disconnect)
result := extractConnectResult(replies, client.Transport().Protocol())
require.Equal(t, client.ID(), result.Client)
require.Equal(t, false, result.Expires)
}
func TestClientConnectWithExpiringToken(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
config.TokenHMACSecretKey = "secret"
_ = node.Reload(config)
transport := newTestTransport()
client, _ := NewClient(context.Background(), node, transport)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{
Token: getConnToken("42", time.Now().Unix()+10),
}, rw)
require.Nil(t, disconnect)
result := extractConnectResult(replies, client.Transport().Protocol())
require.Equal(t, true, result.Expires)
require.True(t, result.TTL > 0)
require.True(t, client.authenticated)
}
func TestClientConnectWithExpiredToken(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
config.TokenHMACSecretKey = "secret"
_ = node.Reload(config)
transport := newTestTransport()
client, _ := NewClient(context.Background(), node, transport)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{
Token: getConnToken("42", 1525541722),
}, rw)
require.Nil(t, disconnect)
require.Equal(t, ErrorTokenExpired.toProto(), replies[0].Error)
require.False(t, client.authenticated)
}
func TestClientTokenRefresh(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
config.TokenHMACSecretKey = "secret"
_ = node.Reload(config)
transport := newTestTransport()
client, _ := NewClient(context.Background(), node, transport)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{
Token: getConnToken("42", 1525541722),
}, rw)
require.Nil(t, disconnect)
require.Equal(t, ErrorTokenExpired.toProto(), replies[0].Error)
refreshResp, disconnect := client.refreshCmd(&protocol.RefreshRequest{
Token: getConnToken("42", 2525637058),
})
require.Nil(t, disconnect)
require.NotEmpty(t, client.ID())
require.True(t, refreshResp.Result.Expires)
require.True(t, refreshResp.Result.TTL > 0)
}
func TestClientConnectContextCredentials(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
_ = node.Reload(config)
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{
UserID: "42",
ExpireAt: time.Now().Unix() + 60,
})
client, _ := NewClient(newCtx, node, transport)
// Set refresh handler to tell library that server-side refresh must be used.
node.On().ClientRefresh(func(ctx context.Context, c *Client, e RefreshEvent) RefreshReply {
return RefreshReply{}
})
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{}, rw)
require.Nil(t, disconnect)
result := extractConnectResult(replies, client.Transport().Protocol())
require.Equal(t, false, result.Expires)
require.Equal(t, uint32(0), result.TTL)
require.True(t, client.authenticated)
require.Equal(t, "42", client.UserID())
}
func TestClientRefreshHandlerClosingExpiredClient(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
_ = node.Reload(config)
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{
UserID: "42",
ExpireAt: time.Now().Unix() + 60,
})
client, _ := NewClient(newCtx, node, transport)
node.On().ClientRefresh(func(ctx context.Context, c *Client, e RefreshEvent) RefreshReply {
return RefreshReply{
Expired: true,
}
})
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{}, rw)
require.Nil(t, disconnect)
client.expire()
require.True(t, client.closed)
}
func TestClientRefreshHandlerProlongatesClientSession(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
_ = node.Reload(config)
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{
UserID: "42",
ExpireAt: time.Now().Unix() + 60,
})
client, _ := NewClient(newCtx, node, transport)
expireAt := time.Now().Unix() + 60
node.On().ClientRefresh(func(ctx context.Context, c *Client, e RefreshEvent) RefreshReply {
return RefreshReply{
ExpireAt: expireAt,
}
})
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{}, rw)
require.Nil(t, disconnect)
client.expire()
require.False(t, client.closed)
require.Equal(t, expireAt, client.exp)
}
func TestClientConnectWithExpiredContextCredentials(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
_ = node.Reload(config)
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{
UserID: "42",
ExpireAt: time.Now().Unix() - 60,
})
client, _ := NewClient(newCtx, node, transport)
// Set refresh handler to tell library that server-side refresh must be used.
node.On().ClientRefresh(func(ctx context.Context, c *Client, e RefreshEvent) RefreshReply {
return RefreshReply{}
})
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{}, rw)
require.Nil(t, disconnect)
require.Equal(t, ErrorExpired.toProto(), replies[0].Error)
}
func connectClient(t testing.TB, client *Client) *protocol.ConnectResult {
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
disconnect := client.connectCmd(&protocol.ConnectRequest{}, rw)
require.Nil(t, disconnect)
require.Nil(t, replies[0].Error)
require.True(t, client.authenticated)
result := extractConnectResult(replies, client.Transport().Protocol())
require.Equal(t, client.uid, result.Client)
return result
}
func extractSubscribeResult(replies []*protocol.Reply, protoType ProtocolType) *protocol.SubscribeResult {
var res protocol.SubscribeResult
if protoType == ProtocolTypeJSON {
err := json.Unmarshal(replies[0].Result, &res)
if err != nil {
panic(err)
}
} else {
err := res.Unmarshal(replies[0].Result)
if err != nil {
panic(err)
}
}
return &res
}
func extractConnectResult(replies []*protocol.Reply, protoType ProtocolType) *protocol.ConnectResult {
var res protocol.ConnectResult
if protoType == ProtocolTypeJSON {
err := json.Unmarshal(replies[0].Result, &res)
if err != nil {
panic(err)
}
} else {
err := res.Unmarshal(replies[0].Result)
if err != nil {
panic(err)
}
}
return &res
}
func subscribeClient(t testing.TB, client *Client, ch string) *protocol.SubscribeResult {
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
ctx := client.subscribeCmd(&protocol.SubscribeRequest{
Channel: ch,
}, rw, false)
require.Nil(t, ctx.disconnect)
require.Nil(t, replies[0].Error)
return extractSubscribeResult(replies, client.Transport().Protocol())
}
func TestClientSubscribe(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
connectClient(t, client)
require.Equal(t, 0, len(client.Channels()))
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
subCtx := client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "test1",
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Equal(t, 1, len(replies))
require.Nil(t, replies[0].Error)
res := extractSubscribeResult(replies, client.Transport().Protocol())
require.Empty(t, res.Seq)
require.False(t, res.Recovered)
require.Empty(t, res.Publications)
require.Equal(t, 1, len(client.Channels()))
replies = nil
subCtx = client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "test2",
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Equal(t, 2, len(client.Channels()))
require.Equal(t, 1, node.Hub().NumClients())
require.Equal(t, 2, node.Hub().NumChannels())
replies = nil
subCtx = client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "test2",
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Equal(t, ErrorAlreadySubscribed.toProto(), replies[0].Error)
}
func TestClientSubscribeReceivePublication(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
transport := newTestTransport()
transport.sink = make(chan []byte, 100)
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
connectClient(t, client)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
subCtx := client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "test",
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Nil(t, replies[0].Error)
done := make(chan struct{})
go func() {
for data := range transport.sink {
if strings.Contains(string(data), "test message") {
close(done)
}
}
}()
_, err := node.Publish("test", []byte(`{"text": "test message"}`))
require.NoError(t, err)
select {
case <-time.After(time.Second):
require.Fail(t, "timeout receiving publication")
case <-done:
}
}
func TestClientSubscribeReceivePublicationWithSequence(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
config.HistoryLifetime = 100
config.HistorySize = 10
_ = node.Reload(config)
transport := newTestTransport()
transport.sink = make(chan []byte, 100)
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
connectClient(t, client)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
subCtx := client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "test",
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Nil(t, replies[0].Error)
done := make(chan struct{})
go func() {
var offset uint64 = 1
for data := range transport.sink {
if strings.Contains(string(data), "test message") {
dec := json.NewDecoder(strings.NewReader(string(data)))
for {
var push struct {
Result struct {
Channel string
Data struct {
Offset uint64
}
}
}
err := dec.Decode(&push)
if err == io.EOF {
break
}
require.NoError(t, err)
if push.Result.Data.Offset != offset {
require.Fail(t, "wrong offset")
}
offset++
if offset > 3 {
close(done)
}
}
}
}
}()
// Send 3 publications, expect client to receive them with
// incremental sequence numbers.
_, err := node.Publish("test", []byte(`{"text": "test message 1"}`))
require.NoError(t, err)
_, err = node.Publish("test", []byte(`{"text": "test message 2"}`))
require.NoError(t, err)
_, err = node.Publish("test", []byte(`{"text": "test message 3"}`))
require.NoError(t, err)
select {
case <-time.After(time.Second):
require.Fail(t, "timeout receiving publications")
case <-done:
}
}
func TestServerSideSubscriptions(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
node.On().ClientConnecting(func(context.Context, TransportInfo, ConnectEvent) ConnectReply {
return ConnectReply{
Channels: []string{
"server-side-1",
"$server-side-2",
},
}
})
transport := newTestTransport()
transport.sink = make(chan []byte, 100)
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
client.handleCommand(&protocol.Command{
ID: 1,
}, rw.write, rw.flush)
_ = client.Subscribe("server-side-3")
_, err := node.Publish("server-side-1", []byte(`{"text": "test message 1"}`))
require.NoError(t, err)
_, err = node.Publish("$server-side-2", []byte(`{"text": "test message 2"}`))
require.NoError(t, err)
_, err = node.Publish("server-side-3", []byte(`{"text": "test message 3"}`))
require.NoError(t, err)
done := make(chan struct{})
go func() {
var i int
for data := range transport.sink {
if strings.Contains(string(data), "test message 1") {
i++
}
if strings.Contains(string(data), "test message 2") {
i++
}
if strings.Contains(string(data), "test message 3") {
i++
}
if i == 3 {
close(done)
}
}
}()
select {
case <-time.After(time.Second):
require.Fail(t, "timeout receiving publication")
case <-done:
}
}
func TestClientUserPersonalChannel(t *testing.T) {
node := nodeWithMemoryEngine()
config := node.Config()
config.UserSubscribeToPersonal = true
config.Namespaces = []ChannelNamespace{
{
Name: "user",
ChannelOptions: ChannelOptions{},
},
}
_ = node.Reload(config)
defer func() { _ = node.Shutdown(context.Background()) }()
var tests = []struct {
Name string
Namespace string
Error *Error
}{
{"ok_no_namespace", "", nil},
{"ok_with_namespace", "user", nil},
}
for _, tt := range tests {
t.Run(tt.Name, func(t *testing.T) {
config := node.Config()
config.UserSubscribeToPersonal = true
config.UserPersonalChannelNamespace = tt.Namespace
err := node.Reload(config)
require.NoError(t, err)
transport := newTestTransport()
transport.sink = make(chan []byte, 100)
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
client.handleCommand(&protocol.Command{
ID: 1,
}, rw.write, rw.flush)
if tt.Error != nil {
require.Equal(t, tt.Error, replies[0].Error)
} else {
done := make(chan struct{})
go func() {
for data := range transport.sink {
if strings.Contains(string(data), "test message") {
close(done)
}
}
}()
_, err := node.Publish(node.PersonalChannel("42"), []byte(`{"text": "test message"}`))
require.NoError(t, err)
select {
case <-time.After(time.Second):
require.Fail(t, "timeout receiving publication")
case <-done:
}
}
})
}
}
func TestClientSubscribePrivateChannelNoToken(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
connectClient(t, client)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
subCtx := client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "$test1",
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Equal(t, ErrorPermissionDenied.toProto(), replies[0].Error)
}
func TestClientSubscribePrivateChannelWithToken(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
config.TokenHMACSecretKey = "secret"
_ = node.Reload(config)
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
connectClient(t, client)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
subCtx := client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "$test1",
Token: getSubscribeToken("$wrong_channel", "wrong client", 0),
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Equal(t, ErrorPermissionDenied.toProto(), replies[0].Error)
replies = nil
subCtx = client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "$test1",
Token: getSubscribeToken("$wrong_channel", client.ID(), 0),
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Equal(t, ErrorPermissionDenied.toProto(), replies[0].Error)
replies = nil
subCtx = client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "$test1",
Token: getSubscribeToken("$test1", client.ID(), 0),
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Nil(t, replies[0].Error)
}
func TestClientSubscribePrivateChannelWithExpiringToken(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
config.TokenHMACSecretKey = "secret"
_ = node.Reload(config)
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
connectClient(t, client)
var replies []*protocol.Reply
rw := testReplyWriter(&replies)
subCtx := client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "$test1",
Token: getSubscribeToken("$test1", client.ID(), 10),
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Equal(t, ErrorTokenExpired.toProto(), replies[0].Error)
replies = nil
subCtx = client.subscribeCmd(&protocol.SubscribeRequest{
Channel: "$test1",
Token: getSubscribeToken("$test1", client.ID(), time.Now().Unix()+10),
}, rw, false)
require.Nil(t, subCtx.disconnect)
require.Nil(t, replies[0].Error, "token is valid and not expired yet")
res := extractSubscribeResult(replies, client.Transport().Protocol())
require.True(t, res.Expires, "expires flag must be set")
require.True(t, res.TTL > 0, "positive TTL must be set")
}
func TestClientSubscribeLast(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
config := node.Config()
config.HistorySize = 10
config.HistoryLifetime = 60
config.HistoryRecover = true
_ = node.Reload(config)
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
connectClient(t, client)
result := subscribeClient(t, client, "test")
require.Equal(t, uint32(0), result.Seq)
for i := 0; i < 10; i++ {
_, _ = node.Publish("test", []byte("{}"))
}
client, _ = NewClient(newCtx, node, transport)
connectClient(t, client)
result = subscribeClient(t, client, "test")
require.Equal(t, uint64(10), result.Offset)
}
func TestClientUnsubscribe(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
connectClient(t, client)
subscribeClient(t, client, "test")
unsubscribeResp, disconnect := client.unsubscribeCmd(&protocol.UnsubscribeRequest{
Channel: "test",
})
require.Nil(t, disconnect)
require.Nil(t, unsubscribeResp.Error)
require.Equal(t, 0, len(client.Channels()))
require.Equal(t, 1, node.Hub().NumClients())
require.Equal(t, 0, node.Hub().NumChannels())
subscribeClient(t, client, "test")
require.Equal(t, 1, len(client.Channels()))
err := client.Unsubscribe("test")
require.NoError(t, err)
require.Equal(t, 0, len(client.Channels()))
require.Equal(t, 1, node.Hub().NumClients())
require.Equal(t, 0, node.Hub().NumChannels())
}
func TestClientPublish(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
connectClient(t, client)
publishResp, disconnect := client.publishCmd(&protocol.PublishRequest{
Channel: "test",
Data: []byte(`{}`),
})
require.Nil(t, disconnect)
require.Equal(t, ErrorPermissionDenied.toProto(), publishResp.Error)
config := node.Config()
config.Publish = true
_ = node.Reload(config)
publishResp, disconnect = client.publishCmd(&protocol.PublishRequest{
Channel: "test",
Data: []byte(`{}`),
})
require.Nil(t, disconnect)
require.Nil(t, publishResp.Error)
config = node.Config()
config.SubscribeToPublish = true
_ = node.Reload(config)
publishResp, disconnect = client.publishCmd(&protocol.PublishRequest{
Channel: "test",
Data: []byte(`{}`),
})
require.Nil(t, disconnect)
require.Equal(t, ErrorPermissionDenied.toProto(), publishResp.Error)
subscribeClient(t, client, "test")
publishResp, disconnect = client.publishCmd(&protocol.PublishRequest{
Channel: "test",
Data: []byte(`{}`),
})
require.Nil(t, disconnect)
require.Nil(t, publishResp.Error)
}
type testBrokerEventHandler struct {
// Publication must register callback func to handle Publications received.
HandlePublicationFunc func(ch string, pub *protocol.Publication) error
// Join must register callback func to handle Join messages received.
HandleJoinFunc func(ch string, join *protocol.Join) error
// Leave must register callback func to handle Leave messages received.
HandleLeaveFunc func(ch string, leave *protocol.Leave) error
// Control must register callback func to handle Control data received.
HandleControlFunc func([]byte) error
}
func (b *testBrokerEventHandler) HandlePublication(ch string, pub *protocol.Publication) error {
if b.HandlePublicationFunc != nil {
return b.HandlePublicationFunc(ch, pub)
}
return nil
}
func (b *testBrokerEventHandler) HandleJoin(ch string, join *protocol.Join) error {
if b.HandleJoinFunc != nil {
return b.HandleJoinFunc(ch, join)
}
return nil
}
func (b *testBrokerEventHandler) HandleLeave(ch string, leave *protocol.Leave) error {
if b.HandleLeaveFunc != nil {
return b.HandleLeaveFunc(ch, leave)
}
return nil
}
func (b *testBrokerEventHandler) HandleControl(data []byte) error {
if b.HandleControlFunc != nil {
return b.HandleControlFunc(data)
}
return nil
}
type testClientMessage struct {
Input string `json:"input"`
Timestamp int64 `json:"timestamp"`
}
func TestClientPublishHandler(t *testing.T) {
node := nodeWithMemoryEngine()
defer func() { _ = node.Shutdown(context.Background()) }()
transport := newTestTransport()
ctx := context.Background()
newCtx := SetCredentials(ctx, &Credentials{UserID: "42"})
client, _ := NewClient(newCtx, node, transport)
connectClient(t, client)
node.broker.(*MemoryEngine).eventHandler = &testBrokerEventHandler{
HandlePublicationFunc: func(ch string, pub *protocol.Publication) error {
var msg testClientMessage
err := json.Unmarshal(pub.Data, &msg)
require.NoError(t, err)
if msg.Input == "with timestamp" {
require.True(t, msg.Timestamp > 0)
} else {
require.Zero(t, msg.Timestamp)
}
return nil
},
}
config := node.Config()
config.Publish = true
_ = node.Reload(config)
subscribeClient(t, client, "test")
client.eventHub.publishHandler = func(e PublishEvent) PublishReply {
var msg testClientMessage
err := json.Unmarshal(e.Data, &msg)
require.NoError(t, err)
if msg.Input == "with disconnect" {
return PublishReply{
Disconnect: DisconnectBadRequest,
}
}