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server_test.go
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// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT
//go:build !js
// +build !js
package turn
import (
"fmt"
"net"
"sync/atomic"
"syscall"
"testing"
"time"
"github.com/pion/logging"
"github.com/pion/transport/v3/test"
"github.com/pion/transport/v3/vnet"
"github.com/pion/turn/v4/internal/allocation"
"github.com/pion/turn/v4/internal/proto"
"github.com/stretchr/testify/assert"
)
const (
timeout = 200 * time.Millisecond
interval = 50 * time.Millisecond
stunAddr = "1.2.3.4:3478"
turnAddr = "1.2.3.4:3478"
)
func TestServer(t *testing.T) { //nolint:maintidx
lim := test.TimeOut(time.Second * 30)
defer lim.Stop()
report := test.CheckRoutines(t)
defer report()
loggerFactory := logging.NewDefaultLoggerFactory()
credMap := map[string][]byte{
"user": GenerateAuthKey("user", "pion.ly", "pass"),
}
t.Run("simple", func(t *testing.T) {
udpListener, err := net.ListenPacket("udp4", "0.0.0.0:3478")
assert.NoError(t, err)
server, err := NewServer(ServerConfig{
AuthHandler: func(username, _ string, _ net.Addr) (key []byte, ok bool) {
if pw, ok := credMap[username]; ok {
return pw, true
}
return nil, false
},
PacketConnConfigs: []PacketConnConfig{
{
PacketConn: udpListener,
RelayAddressGenerator: &RelayAddressGeneratorStatic{
RelayAddress: net.ParseIP("127.0.0.1"),
Address: "0.0.0.0",
},
},
},
Realm: "pion.ly",
LoggerFactory: loggerFactory,
})
assert.NoError(t, err)
assert.Equal(t, proto.DefaultLifetime, server.channelBindTimeout, "should match")
conn, err := net.ListenPacket("udp4", "0.0.0.0:0")
assert.NoError(t, err)
client, err := NewClient(&ClientConfig{
Conn: conn,
LoggerFactory: loggerFactory,
})
assert.NoError(t, err)
assert.NoError(t, client.Listen())
_, err = client.SendBindingRequestTo(&net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 3478})
assert.NoError(t, err, "should succeed")
client.Close()
assert.NoError(t, conn.Close())
assert.NoError(t, server.Close())
})
t.Run("default inboundMTU", func(t *testing.T) {
udpListener, err := net.ListenPacket("udp4", "0.0.0.0:3478")
assert.NoError(t, err)
server, err := NewServer(ServerConfig{
LoggerFactory: loggerFactory,
PacketConnConfigs: []PacketConnConfig{
{
PacketConn: udpListener,
RelayAddressGenerator: &RelayAddressGeneratorStatic{
RelayAddress: net.ParseIP("127.0.0.1"),
Address: "0.0.0.0",
},
},
},
})
assert.NoError(t, err)
assert.Equal(t, server.inboundMTU, defaultInboundMTU)
assert.NoError(t, server.Close())
})
t.Run("Set inboundMTU", func(t *testing.T) {
udpListener, err := net.ListenPacket("udp4", "0.0.0.0:3478")
assert.NoError(t, err)
server, err := NewServer(ServerConfig{
InboundMTU: 2000,
LoggerFactory: loggerFactory,
PacketConnConfigs: []PacketConnConfig{
{
PacketConn: udpListener,
RelayAddressGenerator: &RelayAddressGeneratorStatic{
RelayAddress: net.ParseIP("127.0.0.1"),
Address: "0.0.0.0",
},
},
},
})
assert.NoError(t, err)
assert.Equal(t, server.inboundMTU, 2000)
assert.NoError(t, server.Close())
})
t.Run("Delete allocation on spontaneous TCP close", func(t *testing.T) {
// Test whether allocation is properly deleted when client spontaneously closes the
// TCP connection underlying it
tcpListener, err := net.Listen("tcp4", "127.0.0.1:3478")
assert.NoError(t, err)
server, err := NewServer(ServerConfig{
AuthHandler: func(username, _ string, _ net.Addr) (key []byte, ok bool) {
if pw, ok := credMap[username]; ok {
return pw, true
}
return nil, false
},
ListenerConfigs: []ListenerConfig{
{
Listener: tcpListener,
RelayAddressGenerator: &RelayAddressGeneratorStatic{
RelayAddress: net.ParseIP("127.0.0.1"),
Address: "127.0.0.1",
},
},
},
Realm: "pion.ly",
LoggerFactory: loggerFactory,
})
assert.NoError(t, err)
// make sure we can reuse the client port
dialer := &net.Dialer{
Control: func(_, _ string, conn syscall.RawConn) error {
return conn.Control(func(descriptor uintptr) {
_ = syscall.SetsockoptInt(int(descriptor), syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
})
},
}
conn, err := dialer.Dial("tcp", "127.0.0.1:3478")
assert.NoError(t, err)
clientAddr := conn.LocalAddr()
serverAddr, err := net.ResolveTCPAddr("tcp4", "127.0.0.1:3478")
assert.NoError(t, err)
client, err := NewClient(&ClientConfig{
STUNServerAddr: serverAddr.String(),
TURNServerAddr: serverAddr.String(),
Conn: NewSTUNConn(conn),
Username: "user",
Password: "pass",
Realm: "pion.ly",
LoggerFactory: loggerFactory,
})
assert.NoError(t, err)
assert.NoError(t, client.Listen())
_, err = client.SendBindingRequestTo(&net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 3478})
assert.NoError(t, err, "should succeed")
relayConn, err := client.Allocate()
assert.NoError(t, err)
assert.NotNil(t, relayConn)
fiveTuple := &allocation.FiveTuple{
Protocol: allocation.UDP, // Fixed UDP
SrcAddr: clientAddr,
DstAddr: serverAddr,
}
// Allocation exists
assert.Len(t, server.allocationManagers, 1)
assert.NotNil(t, server.allocationManagers[0].GetAllocation(fiveTuple))
// client.Close()
// This should properly close the client and delete the allocation on the server
assert.NoError(t, conn.Close())
// Let connection to properly close
time.Sleep(100 * time.Millisecond)
// to we still have the allocation on the server?
assert.Nil(t, server.allocationManagers[0].GetAllocation(fiveTuple))
client.Close()
// This should err: client connection has gone so we cannot send the Refresh(0)
// message
assert.Error(t, relayConn.Close())
assert.NoError(t, server.Close())
})
t.Run("Filter on client address and peer IP", func(t *testing.T) {
udpListener, err := net.ListenPacket("udp4", "0.0.0.0:3478")
assert.NoError(t, err)
server, err := NewServer(ServerConfig{
AuthHandler: func(username, _ string, _ net.Addr) (key []byte, ok bool) {
if pw, ok := credMap[username]; ok {
return pw, true
}
return nil, false
},
PacketConnConfigs: []PacketConnConfig{
{
PacketConn: udpListener,
RelayAddressGenerator: &RelayAddressGeneratorStatic{
RelayAddress: net.ParseIP("127.0.0.1"),
Address: "0.0.0.0",
},
PermissionHandler: func(src net.Addr, peer net.IP) bool {
return src.String() == "127.0.0.1:54321" &&
peer.Equal(net.ParseIP("127.0.0.4"))
},
},
},
Realm: "pion.ly",
LoggerFactory: loggerFactory,
})
assert.NoError(t, err)
// Enforce correct client IP and port
conn, err := net.ListenPacket("udp4", "127.0.0.1:54321")
assert.NoError(t, err)
addr := "127.0.0.1:3478"
client, err := NewClient(&ClientConfig{
STUNServerAddr: addr,
TURNServerAddr: addr,
Conn: conn,
Username: "user",
Password: "pass",
Realm: "pion.ly",
LoggerFactory: loggerFactory,
})
assert.NoError(t, err)
assert.NoError(t, client.Listen())
relayConn, err := client.Allocate()
assert.NoError(t, err)
whiteAddr, errA := net.ResolveUDPAddr("udp", "127.0.0.4:12345")
assert.NoError(t, errA, "should succeed")
blackAddr, errB1 := net.ResolveUDPAddr("udp", "127.0.0.5:12345")
assert.NoError(t, errB1, "should succeed")
// Explicit CreatePermission
err = client.CreatePermission(whiteAddr)
assert.NoError(t, err, "grant permission for whitelisted peer")
err = client.CreatePermission(blackAddr)
assert.ErrorContains(t, err, "error", "deny permission for blacklisted peer address")
err = client.CreatePermission(whiteAddr, whiteAddr)
assert.NoError(t, err, "grant permission for repeated whitelisted peer addresses")
err = client.CreatePermission(blackAddr)
assert.ErrorContains(t, err, "error", "deny permission for repeated blacklisted peer address")
// Isn't this a corner case in the spec?
err = client.CreatePermission(whiteAddr, blackAddr)
assert.ErrorContains(t, err, "error", "deny permission for mixed whitelisted and blacklisted peers")
// Implicit CreatePermission for ChannelBindRequests: WriteTo always tries to bind a channel
_, err = relayConn.WriteTo([]byte("Hello"), whiteAddr)
assert.NoError(t, err, "write to whitelisted peer address succeeds - 1")
_, err = relayConn.WriteTo([]byte("Hello"), blackAddr)
assert.ErrorContains(t, err, "error", "write to blacklisted peer address fails - 1")
_, err = relayConn.WriteTo([]byte("Hello"), whiteAddr)
assert.NoError(t, err, "write to whitelisted peer address succeeds - 2")
_, err = relayConn.WriteTo([]byte("Hello"), blackAddr)
assert.ErrorContains(t, err, "error", "write to blacklisted peer address fails - 2")
_, err = relayConn.WriteTo([]byte("Hello"), whiteAddr)
assert.NoError(t, err, "write to whitelisted peer address succeeds - 3")
_, err = relayConn.WriteTo([]byte("Hello"), blackAddr)
assert.ErrorContains(t, err, "error", "write to blacklisted peer address fails - 3")
// Let the previous transaction terminate
time.Sleep(200 * time.Millisecond)
assert.NoError(t, relayConn.Close())
client.Close()
assert.NoError(t, conn.Close())
// Enforce filtered source address
conn2, err := net.ListenPacket("udp4", "127.0.0.1:12321")
assert.NoError(t, err)
client2, err := NewClient(&ClientConfig{
STUNServerAddr: addr,
TURNServerAddr: addr,
Conn: conn2,
Username: "user",
Password: "pass",
Realm: "pion.ly",
LoggerFactory: loggerFactory,
})
assert.NoError(t, err)
assert.NoError(t, client2.Listen())
relayConn2, err := client2.Allocate()
assert.NoError(t, err)
// Explicit CreatePermission
err = client2.CreatePermission(whiteAddr)
assert.ErrorContains(t, err, "error", "deny permission from filtered source to whitelisted peer")
err = client2.CreatePermission(blackAddr)
assert.ErrorContains(t, err, "error", "deny permission from filtered source to blacklisted peer")
// Implicit CreatePermission for ChannelBindRequests: WriteTo always tries to bind a channel
_, err = relayConn2.WriteTo([]byte("Hello"), whiteAddr)
assert.ErrorContains(t, err, "error", "write from filtered source to whitelisted peer fails - 1")
_, err = relayConn2.WriteTo([]byte("Hello"), blackAddr)
assert.ErrorContains(t, err, "error", "write from filtered source to blacklisted peer fails - 1")
_, err = relayConn2.WriteTo([]byte("Hello"), whiteAddr)
assert.ErrorContains(t, err, "error", "write from filtered source to whitelisted peer fails - 2")
_, err = relayConn2.WriteTo([]byte("Hello"), blackAddr)
assert.ErrorContains(t, err, "error", "write from filtered source to blacklisted peer fails - 2")
_, err = relayConn2.WriteTo([]byte("Hello"), whiteAddr)
assert.ErrorContains(t, err, "error", "write from filtered source to whitelisted peer fails - 3")
_, err = relayConn2.WriteTo([]byte("Hello"), blackAddr)
assert.ErrorContains(t, err, "error", "write from filtered source to blacklisted peer fails - 3")
// Let the previous transaction terminate
time.Sleep(200 * time.Millisecond)
assert.NoError(t, relayConn2.Close())
client2.Close()
assert.NoError(t, conn2.Close())
assert.NoError(t, server.Close())
})
}
type VNet struct {
wan *vnet.Router
net0 *vnet.Net // net (0) on the WAN
net1 *vnet.Net // net (1) on the WAN
netL0 *vnet.Net // net (0) on the LAN
server *Server
}
func (v *VNet) Close() error {
if err := v.server.Close(); err != nil {
return err
}
return v.wan.Stop()
}
func buildVNet() (*VNet, error) {
return buildVNetWithServerEventHandlers(nil)
}
func buildVNetWithServerEventHandlers(handlers *EventHandlers) (*VNet, error) { //nolint:cyclop
loggerFactory := logging.NewDefaultLoggerFactory()
if handlers == nil {
handlers = &EventHandlers{}
}
// WAN
wan, err := vnet.NewRouter(&vnet.RouterConfig{
CIDR: "0.0.0.0/0",
LoggerFactory: loggerFactory,
})
if err != nil {
return nil, err
}
net0, err := vnet.NewNet(&vnet.NetConfig{
StaticIP: "1.2.3.4", // Will be assigned to eth0
})
if err != nil {
return nil, err
}
err = wan.AddNet(net0)
if err != nil {
return nil, err
}
net1, err := vnet.NewNet(&vnet.NetConfig{
StaticIP: "1.2.3.5", // Will be assigned to eth0
})
if err != nil {
return nil, err
}
err = wan.AddNet(net1)
if err != nil {
return nil, err
}
// LAN
lan, err := vnet.NewRouter(&vnet.RouterConfig{
StaticIP: "5.6.7.8", // This router's external IP on eth0
CIDR: "192.168.0.0/24",
NATType: &vnet.NATType{
MappingBehavior: vnet.EndpointIndependent,
FilteringBehavior: vnet.EndpointIndependent,
},
LoggerFactory: loggerFactory,
})
if err != nil {
return nil, err
}
netL0, err := vnet.NewNet(&vnet.NetConfig{})
if err != nil {
return nil, err
}
if err = lan.AddNet(netL0); err != nil {
return nil, err
}
if err = wan.AddRouter(lan); err != nil {
return nil, err
}
if err = wan.Start(); err != nil {
return nil, err
}
// Start server...
credMap := map[string][]byte{"user": GenerateAuthKey("user", "pion.ly", "pass")}
udpListener, err := net0.ListenPacket("udp4", "1.2.3.4:3478")
if err != nil {
return nil, err
}
server, err := NewServer(ServerConfig{
AuthHandler: func(username, _ string, _ net.Addr) (key []byte, ok bool) {
if pw, ok := credMap[username]; ok {
return pw, true
}
return nil, false
},
Realm: "pion.ly",
EventHandlers: *handlers,
PacketConnConfigs: []PacketConnConfig{
{
PacketConn: udpListener,
RelayAddressGenerator: &RelayAddressGeneratorNone{
Address: "1.2.3.4",
Net: net0,
},
},
},
LoggerFactory: loggerFactory,
})
if err != nil {
return nil, err
}
// Register host names
err = wan.AddHost("stun.pion.ly", "1.2.3.4")
if err != nil {
return nil, err
}
err = wan.AddHost("turn.pion.ly", "1.2.3.4")
if err != nil {
return nil, err
}
err = wan.AddHost("echo.pion.ly", "1.2.3.5")
if err != nil {
return nil, err
}
return &VNet{
wan: wan,
net0: net0,
net1: net1,
netL0: netL0,
server: server,
}, nil
}
func expectEvent(ch chan allocation.EventHandlerArgs) (allocation.EventHandlerArgs, bool) {
select {
case res := <-ch:
return res, true
case <-time.After(timeout):
return allocation.EventHandlerArgs{}, false
}
}
func TestServerVNet(t *testing.T) { //nolint:maintidx
lim := test.TimeOut(time.Second * 30)
defer lim.Stop()
report := test.CheckRoutines(t)
defer report()
loggerFactory := logging.NewDefaultLoggerFactory()
log := loggerFactory.NewLogger("test")
t.Run("SendBindingRequest", func(t *testing.T) {
v, err := buildVNet()
assert.NoError(t, err)
defer func() {
assert.NoError(t, v.Close())
}()
lconn, err := v.netL0.ListenPacket("udp4", "0.0.0.0:0")
assert.NoError(t, err, "should succeed")
defer func() {
assert.NoError(t, lconn.Close())
}()
log.Debug("creating a client.")
client, err := NewClient(&ClientConfig{
STUNServerAddr: stunAddr,
Conn: lconn,
LoggerFactory: loggerFactory,
})
assert.NoError(t, err, "should succeed")
assert.NoError(t, client.Listen(), "should succeed")
defer client.Close()
log.Debug("sending a binding request.")
reflAddr, err := client.SendBindingRequest()
assert.NoError(t, err)
log.Debugf("mapped-address: %s", reflAddr)
udpAddr, ok := reflAddr.(*net.UDPAddr)
assert.True(t, ok)
// The mapped-address should have IP address that was assigned
// to the LAN router.
assert.True(t, udpAddr.IP.Equal(net.IPv4(5, 6, 7, 8)), "should match")
})
t.Run("AllocationLifecycle", func(t *testing.T) {
virtNet, err := buildVNet()
assert.NoError(t, err)
defer func() {
assert.NoError(t, virtNet.Close())
}()
// Inject an fake event handler so that we can track the succession of callbacks
events := make(chan allocation.EventHandlerArgs, 5)
defer close(events)
assert.Len(t, virtNet.server.allocationManagers, 1)
virtNet.server.allocationManagers[0].EventHandler = func(arg allocation.EventHandlerArgs) {
log.Info(fmt.Sprintf("%#v", arg))
events <- arg
}
lconn, err := virtNet.netL0.ListenPacket("udp4", "0.0.0.0:0")
assert.NoError(t, err, "should succeed")
defer func() {
assert.NoError(t, lconn.Close())
}()
log.Debug("creating a client.")
client, err := NewClient(&ClientConfig{
TURNServerAddr: turnAddr,
Conn: lconn,
Username: "user",
Password: "pass",
Realm: "pion.ly",
LoggerFactory: loggerFactory,
})
assert.NoError(t, err, "should succeed")
assert.NoError(t, client.Listen(), "should succeed")
defer client.Close()
log.Debug("sending an allocate request.")
relayConn, err := client.Allocate()
assert.NoError(t, err, "should succeed")
event, ok := expectEvent(events)
assert.True(t, ok, "should receive an event")
assert.Equal(t, allocation.OnAuth, event.Type, "should receive an OnAuth event")
udpAddr, ok := event.SrcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = event.DstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, allocation.UDP, event.Protocol)
assert.Equal(t, "user", event.Username)
assert.Equal(t, "pion.ly", event.Realm)
assert.Equal(t, "Allocate", event.Method)
assert.True(t, event.Verdict)
event, ok = expectEvent(events)
assert.True(t, ok, "should receive an event")
assert.Equal(t, allocation.OnAllocationCreated, event.Type, "should receive an OnAllocationCreated event")
udpAddr, ok = event.SrcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = event.DstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, "user", event.Username)
assert.Equal(t, "pion.ly", event.Realm)
assert.Equal(t, 0, event.RequestedPort)
relayNetAddr := relayConn.LocalAddr()
log.Debugf("relay-address: %s", relayNetAddr.String())
relayAddr, ok := relayNetAddr.(*net.UDPAddr)
assert.True(t, ok)
udpAddr, ok = event.RelayAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, relayAddr.IP.Equal(udpAddr.IP))
assert.Equal(t, relayAddr.Port, udpAddr.Port)
// The transport relay address should have IP address that was assigned to the server.
assert.True(t, udpAddr.IP.Equal(net.IPv4(1, 2, 3, 4)), "should match")
log.Debug("Sending test packet")
peerAddr := &net.UDPAddr{IP: net.ParseIP("1.2.3.5"), Port: 80}
_, err = relayConn.WriteTo([]byte("test"), peerAddr)
assert.NoError(t, err, "should succeed")
event, ok = expectEvent(events)
assert.True(t, ok, "should receive an event")
assert.Equal(t, allocation.OnAuth, event.Type, "should receive an OnAuth event")
udpAddr, ok = event.SrcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = event.DstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, allocation.UDP, event.Protocol)
assert.Equal(t, "user", event.Username)
assert.Equal(t, "pion.ly", event.Realm)
assert.Equal(t, "CreatePermission", event.Method)
assert.True(t, event.Verdict)
event, ok = expectEvent(events)
assert.True(t, ok, "should receive an event")
assert.Equal(t, allocation.OnPermissionCreated, event.Type, "should receive an OnPermissionCreated event")
udpAddr, ok = event.SrcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = event.DstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, allocation.UDP, event.Protocol)
assert.Equal(t, "user", event.Username)
assert.Equal(t, "pion.ly", event.Realm)
assert.True(t, net.ParseIP("1.2.3.5").Equal(event.PeerIP))
log.Debug("Forcing the creation of a channel")
_, err = relayConn.WriteTo([]byte("test"), peerAddr)
assert.NoError(t, err, "should succeed")
event, ok = expectEvent(events)
assert.True(t, ok, "should receive an event")
assert.Equal(t, allocation.OnAuth, event.Type, "should receive an OnAuth event")
udpAddr, ok = event.SrcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = event.DstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, allocation.UDP, event.Protocol)
assert.Equal(t, "user", event.Username)
assert.Equal(t, "pion.ly", event.Realm)
assert.Equal(t, "ChannelBind", event.Method)
assert.True(t, event.Verdict)
event, ok = expectEvent(events)
assert.True(t, ok, "should receive an event")
assert.Equal(t, allocation.OnChannelCreated, event.Type, "should receive an OnChannelCreated event")
udpAddr, ok = event.SrcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = event.DstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, allocation.UDP, event.Protocol)
assert.Equal(t, "user", event.Username)
assert.Equal(t, "pion.ly", event.Realm)
udpAddr, ok = event.RelayAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, relayAddr.IP.Equal(udpAddr.IP))
assert.Equal(t, relayAddr.Port, udpAddr.Port)
// obtain the channel id
a := virtNet.server.allocationManagers[0].GetAllocation(&allocation.FiveTuple{
Protocol: allocation.UDP,
SrcAddr: event.SrcAddr,
DstAddr: event.DstAddr,
})
assert.NotNil(t, a)
channelBind := a.GetChannelByAddr(peerAddr)
assert.NotNil(t, channelBind)
assert.Equal(t, channelBind.Number, proto.ChannelNumber(event.ChannelNumber))
log.Debug("Closing relay connection")
assert.NoError(t, relayConn.Close(), "relay conn close should succeed")
event, ok = expectEvent(events)
assert.True(t, ok, "should receive an event")
assert.Equal(t, allocation.OnAuth, event.Type, "should receive an OnAuth event")
udpAddr, ok = event.SrcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = event.DstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, allocation.UDP, event.Protocol)
assert.Equal(t, "user", event.Username)
assert.Equal(t, "pion.ly", event.Realm)
assert.Equal(t, "Refresh", event.Method)
assert.True(t, event.Verdict)
event, ok = expectEvent(events)
assert.True(t, ok, "should receive an event")
assert.Equal(t, allocation.OnPermissionDeleted, event.Type, "should receive an OnPermissionDeleted event")
udpAddr, ok = event.SrcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = event.DstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, allocation.UDP, event.Protocol)
assert.Equal(t, "user", event.Username)
assert.Equal(t, "pion.ly", event.Realm)
assert.True(t, net.ParseIP("1.2.3.5").Equal(event.PeerIP))
event, ok = expectEvent(events)
assert.True(t, ok, "should receive an event")
assert.Equal(t, allocation.OnChannelDeleted, event.Type, "should receive an OnChannelDeleted event")
udpAddr, ok = event.SrcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = event.DstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, allocation.UDP, event.Protocol)
assert.Equal(t, "user", event.Username)
assert.Equal(t, "pion.ly", event.Realm)
udpAddr, ok = event.RelayAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, relayAddr.IP.Equal(udpAddr.IP))
assert.Equal(t, relayAddr.Port, udpAddr.Port)
assert.Equal(t, channelBind.Number, proto.ChannelNumber(event.ChannelNumber))
event, ok = expectEvent(events)
assert.True(t, ok, "should receive an event")
assert.Equal(t, allocation.OnAllocationDeleted, event.Type, "should receive an OnAllocationDeleted event")
udpAddr, ok = event.SrcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = event.DstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, allocation.UDP, event.Protocol)
assert.Equal(t, "user", event.Username)
assert.Equal(t, "pion.ly", event.Realm)
})
checkAllocation := func(srcAddr, dstAddr net.Addr, protocol, username, realm string) {
udpAddr, ok := srcAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("5.6.7.8").Equal(udpAddr.IP))
udpAddr, ok = dstAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, net.ParseIP("1.2.3.4").Equal(udpAddr.IP))
assert.Equal(t, allocation.UDP.String(), protocol)
assert.Equal(t, "user", username)
assert.Equal(t, "pion.ly", realm)
}
authEventHandler := func(expectedVerdict bool) (*EventHandlers, *atomic.Int32) {
counter := &atomic.Int32{}
return &EventHandlers{
OnAuth: func(srcAddr, dstAddr net.Addr, protocol, username, realm string, method string, verdict bool) {
checkAllocation(srcAddr, dstAddr, protocol, username, realm)
assert.True(t, method == "Allocate" || method == "Refresh") // close calls refresh with 0 lifetime
assert.Equal(t, expectedVerdict, verdict)
counter.Add(1)
},
}, counter
}
t.Run("AuthEventHandlerSuccess", func(t *testing.T) {
authCallback, counter := authEventHandler(true)
v, err := buildVNetWithServerEventHandlers(authCallback)
assert.NoError(t, err)
defer func() {
assert.NoError(t, v.Close())
}()
lconn, err := v.netL0.ListenPacket("udp4", "0.0.0.0:0")
assert.NoError(t, err, "should succeed")
defer func() {
assert.NoError(t, lconn.Close())
}()
log.Debug("creating a client.")
client, err := NewClient(&ClientConfig{
TURNServerAddr: turnAddr,
Conn: lconn,
Username: "user",
Password: "pass",
Realm: "pion.ly",
LoggerFactory: loggerFactory,
})
assert.NoError(t, err, "should succeed")
assert.NoError(t, client.Listen(), "should succeed")
defer client.Close()
log.Debug("sending an allocate request.")
relayConn, err := client.Allocate()
assert.NoError(t, err, "should succeed")
log.Debug("Closing relay connection")
assert.NoError(t, relayConn.Close(), "relay conn close should succeed")
assert.Eventually(t, func() bool { return counter.Load() == 2 }, timeout, interval)
})
t.Run("AuthEventHandlerFailure", func(t *testing.T) {
authCallback, counter := authEventHandler(false)
v, err := buildVNetWithServerEventHandlers(authCallback)
assert.NoError(t, err)
defer func() {
assert.NoError(t, v.Close())
}()
lconn, err := v.netL0.ListenPacket("udp4", "0.0.0.0:0")
assert.NoError(t, err, "should succeed")
defer func() {
assert.NoError(t, lconn.Close())
}()
log.Debug("creating a client.")
client, err := NewClient(&ClientConfig{
TURNServerAddr: turnAddr,
Conn: lconn,
Username: "user",
Password: "wrong-pass",
Realm: "pion.ly",
LoggerFactory: loggerFactory,
})
assert.NoError(t, err, "should succeed")
assert.NoError(t, client.Listen(), "should succeed")
defer client.Close()
log.Debug("sending an allocate request.")
_, err = client.Allocate()
assert.Error(t, err, "should not succeed")
assert.Eventually(t, func() bool { return counter.Load() == 1 }, timeout, interval)
})
t.Run("AllocationEventHandlers", func(t *testing.T) {
peerAddr := &net.UDPAddr{IP: net.ParseIP("1.2.3.5"), Port: 80}
relayAddrIP := net.ParseIP("1.2.3.4")
allocCreated, allocDeleted := &atomic.Int32{}, &atomic.Int32{}
permissionCreated, permissionDeleted := &atomic.Int32{}, &atomic.Int32{}
channelCreated, channelDeleted := &atomic.Int32{}, &atomic.Int32{}
allocCallback := &EventHandlers{
OnAllocationCreated: func(srcAddr, dstAddr net.Addr, protocol, username, realm string,
relayAddr net.Addr, requestedPort int,
) {
checkAllocation(srcAddr, dstAddr, protocol, username, realm)
assert.Equal(t, 0, requestedPort)
udpAddr, ok := relayAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, relayAddrIP.Equal(udpAddr.IP))
allocCreated.Add(1)
},
OnAllocationDeleted: func(srcAddr, dstAddr net.Addr, protocol, username, realm string) {
checkAllocation(srcAddr, dstAddr, protocol, username, realm)
allocDeleted.Add(1)
},
OnPermissionCreated: func(srcAddr, dstAddr net.Addr, protocol, username, realm string,
relayAddr net.Addr, peer net.IP,
) {
checkAllocation(srcAddr, dstAddr, protocol, username, realm)
udpAddr, ok := relayAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, relayAddrIP.Equal(udpAddr.IP))
assert.True(t, net.ParseIP("1.2.3.5").Equal(peer))
permissionCreated.Add(1)
},
OnPermissionDeleted: func(srcAddr, dstAddr net.Addr, protocol, username, realm string,
relayAddr net.Addr, peer net.IP,
) {
checkAllocation(srcAddr, dstAddr, protocol, username, realm)
udpAddr, ok := relayAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, relayAddrIP.Equal(udpAddr.IP))
assert.True(t, net.ParseIP("1.2.3.5").Equal(peer))
permissionDeleted.Add(1)
},
OnChannelCreated: func(srcAddr, dstAddr net.Addr, protocol, username, realm string,
relayAddr, peer net.Addr, channelNumber uint16,
) {
checkAllocation(srcAddr, dstAddr, protocol, username, realm)
addr, ok := peer.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, addr.IP.Equal(peerAddr.IP))
assert.Equal(t, peerAddr.Port, addr.Port)
udpAddr, ok := relayAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, relayAddrIP.Equal(udpAddr.IP))
assert.NotZero(t, channelNumber)
channelCreated.Add(1)
},
OnChannelDeleted: func(srcAddr, dstAddr net.Addr, protocol, username, realm string,
relayAddr, peer net.Addr, channelNumber uint16,
) {
checkAllocation(srcAddr, dstAddr, protocol, username, realm)
addr, ok := peer.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, addr.IP.Equal(peerAddr.IP))
assert.Equal(t, peerAddr.Port, addr.Port)
udpAddr, ok := relayAddr.(*net.UDPAddr)
assert.True(t, ok)
assert.True(t, relayAddrIP.Equal(udpAddr.IP))
assert.NotZero(t, channelNumber)
channelDeleted.Add(1)
},
}
v, err := buildVNetWithServerEventHandlers(allocCallback)
assert.NoError(t, err)
defer func() {
assert.NoError(t, v.Close())
}()
lconn, err := v.netL0.ListenPacket("udp4", "0.0.0.0:0")
assert.NoError(t, err, "should succeed")
defer func() {
assert.NoError(t, lconn.Close())
}()
log.Debug("creating a client.")
client, err := NewClient(&ClientConfig{
TURNServerAddr: turnAddr,
Conn: lconn,
Username: "user",
Password: "pass",
Realm: "pion.ly",
LoggerFactory: loggerFactory,
})
assert.NoError(t, err, "should succeed")
assert.NoError(t, client.Listen(), "should succeed")
defer client.Close()
log.Debug("sending an allocate request.")
relayConn, err := client.Allocate()
assert.NoError(t, err, "should succeed")
assert.Eventually(t, func() bool { return allocCreated.Load() == 1 }, timeout, interval)
log.Debug("Sending test packet")
_, err = relayConn.WriteTo([]byte("test"), peerAddr)
assert.NoError(t, err, "should succeed")
assert.Eventually(t, func() bool { return permissionCreated.Load() == 1 }, timeout, interval)