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// Copyright 2012-2018 The NATS Authors
// 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://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 test
import (
"crypto/tls"
"fmt"
"net"
"testing"
"time"
"github.com/nats-io/gnatsd/server"
)
const (
PING_TEST_PORT = 9972
PING_INTERVAL = 50 * time.Millisecond
PING_MAX = 2
)
func runPingServer() *server.Server {
opts := DefaultTestOptions
opts.Port = PING_TEST_PORT
opts.PingInterval = PING_INTERVAL
opts.MaxPingsOut = PING_MAX
return RunServer(&opts)
}
func TestPingSentToTLSConnection(t *testing.T) {
opts := DefaultTestOptions
opts.Port = PING_TEST_PORT
opts.PingInterval = PING_INTERVAL
opts.MaxPingsOut = PING_MAX
opts.TLSCert = "configs/certs/server-cert.pem"
opts.TLSKey = "configs/certs/server-key.pem"
opts.TLSCaCert = "configs/certs/ca.pem"
tc := server.TLSConfigOpts{}
tc.CertFile = opts.TLSCert
tc.KeyFile = opts.TLSKey
tc.CaFile = opts.TLSCaCert
opts.TLSConfig, _ = server.GenTLSConfig(&tc)
opts.TLSTimeout = 5
s := RunServer(&opts)
defer s.Shutdown()
c := createClientConn(t, "127.0.0.1", PING_TEST_PORT)
defer c.Close()
checkInfoMsg(t, c)
c = tls.Client(c, &tls.Config{InsecureSkipVerify: true})
tlsConn := c.(*tls.Conn)
tlsConn.Handshake()
cs := fmt.Sprintf("CONNECT {\"verbose\":%v,\"pedantic\":%v,\"tls_required\":%v}\r\n", false, false, true)
sendProto(t, c, cs)
expect := expectCommand(t, c)
// Expect the max to be delivered correctly..
for i := 0; i < PING_MAX; i++ {
time.Sleep(PING_INTERVAL / 2)
expect(pingRe)
}
// We should get an error from the server
time.Sleep(PING_INTERVAL)
expect(errRe)
// Server should close the connection at this point..
time.Sleep(PING_INTERVAL)
c.SetWriteDeadline(time.Now().Add(PING_INTERVAL))
var err error
for {
_, err = c.Write([]byte("PING\r\n"))
if err != nil {
break
}
}
c.SetWriteDeadline(time.Time{})
if err == nil {
t.Fatal("No error: Expected to have connection closed")
}
if ne, ok := err.(net.Error); ok && ne.Timeout() {
t.Fatal("timeout: Expected to have connection closed")
}
}
func TestPingInterval(t *testing.T) {
s := runPingServer()
defer s.Shutdown()
c := createClientConn(t, "127.0.0.1", PING_TEST_PORT)
defer c.Close()
doConnect(t, c, false, false, false)
expect := expectCommand(t, c)
// Expect the max to be delivered correctly..
for i := 0; i < PING_MAX; i++ {
time.Sleep(PING_INTERVAL / 2)
expect(pingRe)
}
// We should get an error from the server
time.Sleep(PING_INTERVAL)
expect(errRe)
// Server should close the connection at this point..
time.Sleep(PING_INTERVAL)
c.SetWriteDeadline(time.Now().Add(PING_INTERVAL))
var err error
for {
_, err = c.Write([]byte("PING\r\n"))
if err != nil {
break
}
}
c.SetWriteDeadline(time.Time{})
if err == nil {
t.Fatal("No error: Expected to have connection closed")
}
if ne, ok := err.(net.Error); ok && ne.Timeout() {
t.Fatal("timeout: Expected to have connection closed")
}
}
func TestUnpromptedPong(t *testing.T) {
s := runPingServer()
defer s.Shutdown()
c := createClientConn(t, "127.0.0.1", PING_TEST_PORT)
defer c.Close()
doConnect(t, c, false, false, false)
expect := expectCommand(t, c)
// Send lots of PONGs in a row...
for i := 0; i < 100; i++ {
c.Write([]byte("PONG\r\n"))
}
// The server should still send the max number of PINGs and then
// close the connection.
for i := 0; i < PING_MAX; i++ {
time.Sleep(PING_INTERVAL / 2)
expect(pingRe)
}
// We should get an error from the server
time.Sleep(PING_INTERVAL)
expect(errRe)
// Server should close the connection at this point..
c.SetWriteDeadline(time.Now().Add(PING_INTERVAL))
var err error
for {
_, err = c.Write([]byte("PING\r\n"))
if err != nil {
break
}
}
c.SetWriteDeadline(time.Time{})
if err == nil {
t.Fatal("No error: Expected to have connection closed")
}
if ne, ok := err.(net.Error); ok && ne.Timeout() {
t.Fatal("timeout: Expected to have connection closed")
}
}
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