func main() {
log.SetFlags(log.Flags() | log.Lshortfile)
var clientPairId string
meetAddr := "localhost:8080"
flag.StringVar(&meetAddr, "meetAddr", meetAddr, "Server for discover other")
flag.StringVar(&clientPairId, "pair", "", "key to macth service")
flag.Parse()
log.Printf("Discover server is %s\n", meetAddr)
log.Printf("unique ID for the client pair: %s\n", clientPairId)
if len(clientPairId) == 0 {
log.Fatal("Must config the pair")
}
firstConn, err := net.Dial("tcp", meetAddr)
if err != nil {
log.Fatal(err)
}
fmt.Fprintf(firstConn, "GET /meet/"+clientPairId+" HTTP/1.0\r\n\r\n")
firstConn.Close()
// Block to let the OS free the port.
time.Sleep(5 * time.Second)
log.Println("firstConn.LocalAddr", firstConn.LocalAddr().String())
ln, err := net.Listen("tcp", firstConn.LocalAddr().String())
if err != nil {
log.Println("Could not open listening socket! " + err.Error())
return
}
log.Println("Listening on address " + firstConn.LocalAddr().String())
for {
conn, err := ln.Accept()
if err != nil {
fmt.Println(err.Error())
continue
}
go handleConnection(conn)
}
}
func main() {
log.SetFlags(log.Flags() | log.Lshortfile)
meetAddrFmt := "http://%s/meet/"
meetAddr := "localhost:8080"
var clientPairId string
flag.StringVar(&meetAddr, "meetAddr", meetAddr, "Server for discover other")
flag.StringVar(&clientPairId, "pair", "", "key to macth service")
flag.Parse()
meetAddr = fmt.Sprintf(meetAddrFmt, meetAddr)
log.Printf("Discover server is %s\n", meetAddr)
log.Printf("unique ID for the client pair: %s\n", clientPairId)
if len(clientPairId) == 0 {
log.Fatal("Must config the pair")
}
response, err := http.Get(meetAddr + clientPairId)
if err != nil {
log.Fatal(err)
}
address, err := ioutil.ReadAll(response.Body)
if err != nil {
log.Fatal(err)
}
log.Printf("Dial %s\n", string(address))
conn, err := net.Dial("tcp", string(address))
if err != nil {
log.Fatal(err)
}
go readSocket(conn)
writeSocket(conn)
}