func sendGetCommand(conn net.Conn, s parser.Statement) {
msgId, _ := newUUID()
cmd := msg.NewCommand(msgId, msg.NewGetCommand(s.Key))
if err := cmd.Encode(conn); err != nil {
fmt.Printf("Failed to send command to server: %v\n", err.Error())
}
result, err := msg.DecodeResult(conn)
if err != nil {
fmt.Printf("Failed to read result from server: %v\n", err.Error())
}
sr := result.SubResult.(msg.GetResult)
fmt.Printf("%v: %v\n", sr.Key, sr.Value)
}
func main() {
fmt.Println("Connecting to localhost:4567")
conn, err := net.Dial("tcp", "localhost:4567")
if err != nil {
fmt.Fprintln(os.Stderr, err)
}
msgId, _ := newUUID()
cmd := msg.NewCommand(msgId, msg.NewHandshakeCommand("mescal-repl version 0.0.0"))
if err := cmd.Encode(conn); err != nil {
fmt.Fprintln(os.Stderr, err)
}
r, err := msg.DecodeResult(conn)
if err != nil {
fmt.Fprintln(os.Stderr, err)
}
if r.Status != msg.StatusSuccess {
fmt.Fprintln(os.Stderr, "Failed to complete handshake with server")
}
for {
reader := bufio.NewReader(os.Stdin)
fmt.Print("> ")
command, _ := reader.ReadString('\n')
p := parser.NewParser(command)
s, err := p.Parse()
if err != nil {
fmt.Printf("Unable to parse command: %s\n", err.Error())
continue
}
switch s.Action {
case parser.GET:
sendGetCommand(conn, s)
case parser.SET:
sendSetCommand(conn, s)
default:
fmt.Println("Unknown command")
}
}
}
func sendSetCommand(conn net.Conn, s parser.Statement) {
msgId, _ := newUUID()
cmd := msg.NewCommand(msgId, msg.NewSetCommand(s.Key, s.Value, s.Expiry))
if err := cmd.Encode(conn); err != nil {
fmt.Printf("Failed to send command to server: %v\n", err.Error())
}
result, err := msg.DecodeResult(conn)
if err != nil {
fmt.Printf("Failed to read result from server: %v\n", err.Error())
}
if result.Status == msg.StatusSuccess {
fmt.Println("OK")
} else {
fmt.Println("Failed")
}
}
time.Sleep(time.Millisecond * 1000)
var err error
client, err = net.Dial("tcp", "127.0.0.1:"+cfg.Port)
if err != nil {
panic(err)
}
})
It("can handle a client handshake", func() {
cmd := msg.NewCommand("12345", msg.NewHandshakeCommand("Go v0.1.1"))
err := cmd.Encode(client)
Expect(err).To(BeNil())
result, err := msg.DecodeResult(client)
Expect(err).To(BeNil())
Expect(result.Id).To(Equal("12345"))
Expect(result.Action).To(Equal(msg.ActionHandshake))
subRes := result.SubResult.(msg.HandshakeResult)
Expect(subRes.ClientId).To(BeAssignableToTypeOf("string"))
})
Context("With a client that has already performed handshake", func() {
It("can handle a set command", func() {
cmd := msg.NewCommand("12345", msg.NewSetCommand("doodle", "poodle", time.Now().Unix()))
err := cmd.Encode(client)
Expect(err).To(BeNil())
result, err := msg.DecodeResult(client)
func main() {
certPool := x509.NewCertPool()
caFile, err := ioutil.ReadFile("../test/ca.pem")
block, _ := pem.Decode(caFile)
caCert, err := x509.ParseCertificate(block.Bytes)
certPool.AddCert(caCert)
clientCert, err := tls.LoadX509KeyPair("../test/cert.pem", "../test/key.pem")
if err != nil {
panic(err)
}
tlsCfg := tls.Config{
Certificates: []tls.Certificate{clientCert},
RootCAs: certPool,
ServerName: "localhost",
}
conn, err := tls.Dial("tcp", "127.0.0.1:4333", &tlsCfg)
// conn, err := net.Dial("tcp", "localhost:4333")
if err != nil {
fmt.Println("Failed to open connection:", err)
}
cmd := msg.NewCommand("1234", msg.NewHandshakeCommand("mescal go version 1.2.3"))
if err = cmd.Encode(conn); err != nil {
fmt.Println(err)
return
}
res, err := msg.DecodeResult(conn)
if err != nil {
panic(err)
}
fmt.Println(res.Id)
fmt.Printf("%+v", res.SubResult.(msg.HandshakeResult))
cmd = msg.NewCommand("1233", msg.NewSetCommand("ascii", "characters", time.Now().Unix()))
if err = cmd.Encode(conn); err != nil {
fmt.Println(err)
return
}
res, err = msg.DecodeResult(conn)
if err != nil {
panic(err)
}
fmt.Println(res.Action)
for {
fmt.Println("\n\n")
time.Sleep(1 * time.Second)
cmd = msg.NewCommand("1234", msg.NewGetCommand("ascii"))
if err = cmd.Encode(conn); err != nil {
fmt.Println(err)
return
}
res, err = msg.DecodeResult(conn)
if err != nil {
panic(err)
}
fmt.Println(res.Action)
switch sb := res.SubResult.(type) {
case msg.GetResult:
fmt.Println("SubResult is GetResult")
fmt.Println("Key: ", sb.Key)
fmt.Println("Value:", sb.Value)
default:
fmt.Println("Unknown SubCommand")
}
}
}