Esempio n. 1
0
func run(port, password string) {
	ln, err := net.Listen("tcp", ":"+port)
	if err != nil {
		log.Printf("error listening port %v: %v\n", port, err)
		return
	}
	passwdManager.add(port, password, ln)
	var cipher *ss.Cipher
	log.Printf("server listening port %v ...\n", port)
	for {
		conn, err := ln.Accept()
		if err != nil {
			// listener maybe closed to update password
			debug.Printf("accept error: %v\n", err)
			return
		}
		// Creating cipher upon first connection.
		if cipher == nil {
			log.Println("creating cipher for port:", port)
			cipher, err = ss.NewCipher(config.Method, password)
			if err != nil {
				log.Printf("Error generating cipher for port: %s %v\n", port, err)
				conn.Close()
				continue
			}
		}
		go handleConnection(ss.NewConn(conn, cipher.Copy()))
	}
}
Esempio n. 2
0
func get(connid int, uri, serverAddr string, rawAddr []byte, cipher ss.Cipher, done chan []time.Duration) {
	reqDone := 0
	reqTime := make([]time.Duration, config.nreq)
	defer func() {
		done <- reqTime[:reqDone]
	}()
	tr := &http.Transport{
		Dial: func(_, _ string) (net.Conn, error) {
			return ss.DialWithRawAddr(rawAddr, serverAddr, cipher.Copy())
		},
	}

	buf := make([]byte, 8192)
	client := &http.Client{Transport: tr}
	for ; reqDone < config.nreq; reqDone++ {
		start := time.Now()
		if err := doOneRequest(client, uri, buf); err != nil {
			return
		}
		reqTime[reqDone] = time.Now().Sub(start)

		if (reqDone+1)%1000 == 0 {
			fmt.Printf("conn %d finished %d get requests\n", connid, reqDone+1)
		}
	}
}
Esempio n. 3
0
func runUDP(port string, password [3]string) {
	addr, _ := net.ResolveUDPAddr(netUdp, ":"+port)
	conn, err := net.ListenUDP(netUdp, addr)
	if err != nil {
		log.Printf("error listening udp port %v: %v\n", port, err)
		return
	}
	passwdManager.addUDP(port, password, conn)
	log.Printf("server listening udp port %v ...\n", port)
	defer conn.Close()
	var cipher *ss.Cipher
	cipher, err = ss.NewCipher(config.Method, password[0])
	if err != nil {
		log.Printf("Error generating cipher for udp port: %s %v\n", port, err)
		conn.Close()
	}
	ss.HandleUDPConnection(ss.NewUDPConn(conn, cipher.Copy()), password[1])
}
Esempio n. 4
0
func run(port, password string) {

	var addr string
	var lastTime int64

	ln, err := net.Listen("tcp", ":"+port)
	if err != nil {
		log.Printf("error listening port %v: %v\n", port, err)
		return
	}
	passwdManager.add(port, password, ln)
	var cipher *ss.Cipher
	log.Printf("server listening port %v ...\n", port)
	for {
		conn, err := ln.Accept()
		if err != nil {
			// listener maybe closed to update password
			debug.Printf("accept error: %v\n", err)
			return
		}

		newaddr := conn.RemoteAddr().String()
		nowtime := time.Now().Unix()
		if addr != newaddr && lastTime >= nowtime {
			conn.Close()
			continue
		}
		lastTime = nowtime
		addr = newaddr

		// Creating cipher upon first connection.
		if cipher == nil {
			log.Println("creating cipher for port:", port)
			cipher, err = ss.NewCipher(config.Method, password)
			if err != nil {
				log.Printf("Error generating cipher for port: %s %v\n", port, err)
				conn.Close()
				continue
			}
		}
		go handleConnection(ss.NewConn(conn, cipher.Copy()))
	}
}
Esempio n. 5
0
func run(port string) {
	ln, err := net.Listen("tcp", ":"+port)
	if err != nil {
		log.Printf("error listening port %v: %v\n", port, err)
		os.Exit(0)
	}
	var cipher *ss.Cipher
	log.Printf("server listening port %v ...\n", port)
	for {
		conn, err := ln.Accept()
		if err != nil {
			log.Printf("accept error: %v\n", err)
			continue
		}

		user, err := getUser(conn)
		if err != nil {
			log.Printf("Error get passeoed: %s %v\n", port, err)
			conn.Close()
			continue
		}
		size, err := storage.GetSize("flow:" + user.Name)
		if user.Limit < size {
			log.Printf("Error user runover: %s\n", size)
			conn.Close()
			continue
		}

		// log.Println("creating cipher for user:"******"Error generating cipher for user: %s %v\n", user.Name, err)
			conn.Close()
			continue
		}
		go handleConnection(user, ss.NewConn(conn, cipher.Copy()))
	}
}