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Port mux| https|tls crypt
This commit is contained in:
刘河
63
lib/mux/pconn.go
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63
lib/mux/pconn.go
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@@ -0,0 +1,63 @@
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package mux
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import (
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"net"
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"time"
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)
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type PortConn struct {
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Conn net.Conn
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rs []byte
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start int
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}
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func newPortConn(conn net.Conn, rs []byte) *PortConn {
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return &PortConn{
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Conn: conn,
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rs: rs,
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}
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}
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func (pConn *PortConn) Read(b []byte) (n int, err error) {
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if len(b) < len(pConn.rs)-pConn.start {
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defer func() {
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pConn.start = pConn.start + len(b)
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}()
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return copy(b, pConn.rs), nil
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}
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if pConn.start < len(pConn.rs) {
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defer func() {
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pConn.start = len(pConn.rs)
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}()
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return copy(b, pConn.rs[pConn.start:]), nil
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}
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return pConn.Conn.Read(b)
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}
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func (pConn *PortConn) Write(b []byte) (n int, err error) {
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return pConn.Conn.Write(b)
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}
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func (pConn *PortConn) Close() error {
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return pConn.Conn.Close()
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}
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func (pConn *PortConn) LocalAddr() net.Addr {
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return pConn.Conn.LocalAddr()
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}
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func (pConn *PortConn) RemoteAddr() net.Addr {
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return pConn.Conn.RemoteAddr()
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}
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func (pConn *PortConn) SetDeadline(t time.Time) error {
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return pConn.Conn.SetDeadline(t)
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}
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func (pConn *PortConn) SetReadDeadline(t time.Time) error {
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return pConn.Conn.SetReadDeadline(t)
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}
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func (pConn *PortConn) SetWriteDeadline(t time.Time) error {
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return pConn.Conn.SetWriteDeadline(t)
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}
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44
lib/mux/plistener.go
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44
lib/mux/plistener.go
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package mux
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import (
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"errors"
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"net"
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)
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type PortListener struct {
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net.Listener
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connCh chan *PortConn
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addr net.Addr
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isClose bool
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}
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func NewPortListener(connCh chan *PortConn, addr net.Addr) *PortListener {
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return &PortListener{
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connCh: connCh,
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addr: addr,
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}
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}
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func (pListener *PortListener) Accept() (net.Conn, error) {
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if pListener.isClose {
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return nil, errors.New("the listener has closed")
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}
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conn := <-pListener.connCh
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if conn != nil {
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return conn, nil
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}
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return nil, errors.New("the listener has closed")
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}
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func (pListener *PortListener) Close() error {
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//close
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if pListener.isClose {
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return errors.New("the listener has closed")
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}
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pListener.isClose = true
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return nil
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}
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func (pListener *PortListener) Addr() net.Addr {
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return pListener.addr
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}
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163
lib/mux/pmux.go
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163
lib/mux/pmux.go
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@@ -0,0 +1,163 @@
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// This module is used for port reuse
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// Distinguish client, web manager , HTTP and HTTPS according to the difference of protocol
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package mux
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import (
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"bufio"
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"bytes"
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"github.com/cnlh/nps/vender/github.com/astaxie/beego/logs"
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"github.com/pkg/errors"
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"io"
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"net"
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"strconv"
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"strings"
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)
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const (
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HTTP_GET = 716984
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HTTP_POST = 807983
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HTTP_HEAD = 726965
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HTTP_PUT = 808585
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HTTP_DELETE = 686976
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HTTP_CONNECT = 677978
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HTTP_OPTIONS = 798084
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HTTP_TRACE = 848265
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CLIENT = 848384
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)
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type PortMux struct {
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net.Listener
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port int
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isClose bool
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managerHost string
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clientConn chan *PortConn
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httpConn chan *PortConn
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httpsConn chan *PortConn
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managerConn chan *PortConn
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}
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func NewPortMux(port int, managerHost string) *PortMux {
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pMux := &PortMux{
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managerHost: managerHost,
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port: port,
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clientConn: make(chan *PortConn),
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httpConn: make(chan *PortConn),
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httpsConn: make(chan *PortConn),
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managerConn: make(chan *PortConn),
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}
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pMux.Start()
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return pMux
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}
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func (pMux *PortMux) Start() error {
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// Port multiplexing is based on TCP only
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tcpAddr, err := net.ResolveTCPAddr("tcp", "0.0.0.0:"+strconv.Itoa(pMux.port))
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if err != nil {
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return err
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}
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pMux.Listener, err = net.ListenTCP("tcp", tcpAddr)
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if err != nil {
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return err
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}
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go func() {
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for {
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conn, err := pMux.Listener.Accept()
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if err != nil {
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logs.Warn(err)
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//close
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pMux.Close()
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}
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go pMux.process(conn)
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}
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}()
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return nil
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}
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func (pMux *PortMux) process(conn net.Conn) {
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// Recognition according to different signs
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// read 3 byte
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buf := make([]byte, 3)
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if n, err := io.ReadFull(conn, buf); err != nil || n != 3 {
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return
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}
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var ch chan *PortConn
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var rs []byte
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var buffer bytes.Buffer
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switch bytesToNum(buf) {
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case HTTP_CONNECT, HTTP_DELETE, HTTP_GET, HTTP_HEAD, HTTP_OPTIONS, HTTP_POST, HTTP_PUT, HTTP_TRACE: //http and manager
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buffer.Reset()
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r := bufio.NewReader(conn)
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buffer.Write(buf)
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for {
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b, _, err := r.ReadLine()
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if err != nil {
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logs.Warn("read line error", err.Error())
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conn.Close()
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break
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}
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buffer.Write(b)
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buffer.Write([]byte("\r\n"))
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if strings.Index(string(b), "Host:") == 0 || strings.Index(string(b), "host:") == 0 {
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// Remove host and space effects
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str := strings.Replace(string(b), "Host:", "", -1)
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str = strings.Replace(str, "host:", "", -1)
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str = strings.TrimSpace(str)
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// Determine whether it is the same as the manager domain name
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if str == pMux.managerHost {
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ch = pMux.managerConn
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} else {
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ch = pMux.httpConn
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}
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b, _ := r.Peek(r.Buffered())
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buffer.Write(b)
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rs = buffer.Bytes()
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break
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}
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}
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case CLIENT: // client connection
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ch = pMux.clientConn
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default: // https
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ch = pMux.httpsConn
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}
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if len(rs) == 0 {
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rs = buf
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}
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ch <- newPortConn(conn, rs)
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}
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func (pMux *PortMux) Close() error {
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if pMux.isClose {
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return errors.New("the port mux has closed")
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}
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pMux.isClose = true
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close(pMux.clientConn)
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close(pMux.httpsConn)
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close(pMux.httpConn)
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close(pMux.managerConn)
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return pMux.Listener.Close()
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}
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func (pMux *PortMux) GetClientListener() net.Listener {
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return NewPortListener(pMux.clientConn, pMux.Listener.Addr())
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}
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func (pMux *PortMux) GetHttpListener() net.Listener {
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return NewPortListener(pMux.httpConn, pMux.Listener.Addr())
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}
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func (pMux *PortMux) GetHttpsListener() net.Listener {
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return NewPortListener(pMux.httpsConn, pMux.Listener.Addr())
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}
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func (pMux *PortMux) GetManagerListener() net.Listener {
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return NewPortListener(pMux.managerConn, pMux.Listener.Addr())
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}
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func bytesToNum(b []byte) int {
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var str string
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for i := 0; i < len(b); i++ {
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str += strconv.Itoa(int(b[i]))
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}
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x, _ := strconv.Atoi(str)
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return int(x)
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}
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39
lib/mux/pmux_test.go
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39
lib/mux/pmux_test.go
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@@ -0,0 +1,39 @@
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package mux
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import (
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"github.com/cnlh/nps/vender/github.com/astaxie/beego/logs"
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"testing"
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"time"
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)
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func TestPortMux_Close(t *testing.T) {
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logs.Reset()
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logs.EnableFuncCallDepth(true)
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logs.SetLogFuncCallDepth(3)
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pMux := NewPortMux(8888)
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go func() {
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if pMux.Start() != nil {
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logs.Warn("Error")
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}
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}()
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time.Sleep(time.Second * 3)
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go func() {
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l := pMux.GetHttpsAccept()
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conn, err := l.Accept()
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logs.Warn(conn, err)
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}()
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go func() {
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l := pMux.GetHttpAccept()
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conn, err := l.Accept()
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logs.Warn(conn, err)
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}()
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go func() {
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l := pMux.GetClientAccept()
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conn, err := l.Accept()
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logs.Warn(conn, err)
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}()
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l := pMux.GetManagerAccept()
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conn, err := l.Accept()
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logs.Warn(conn, err)
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}
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