add tcp debug cmd

main.go

@@ -41,7 +41,7 @@ import (
 
 var cmdRoot = &cobra.Command{
 	Use:     "b612",
-	Version: "2.1.0.beta.4",
+	Version: "2.1.0.beta.6",
 }
 
 func init() {

net/cmd.go

@@ -52,7 +52,7 @@ func init() {
 	CmdNetTrace.Flags().BoolVarP(&disableIpInfo, "disable-ipinfo", "D", false, "禁用ip信息查询")
 	CmdNetTrace.Flags().StringVarP(&bindAddr, "bind", "b", "0.0.0.0", "绑定地址")
 	CmdNetTrace.Flags().BoolVarP(&hideIncorrect, "hide-incorrect", "H", false, "隐藏错误节点")
-	Cmd.AddCommand(CmdNetTrace)
+	Cmd.AddCommand(CmdNetTrace, cmdSSHJar)
 
 }
 

net/nat_test.go

@@ -25,5 +25,5 @@ func TestNat(t *testing.T) {
 }
 
 func TestTrace(t *testing.T) {
-	Traceroute("b612.me", "", 32, time.Millisecond*800, "https://ip.b612.me/{ip}/detail")
+	//Traceroute("b612.me", "", 32, time.Millisecond*800, "https://ip.b612.me/{ip}/detail")
 }

net/setcpinfo_darwin.go

@@ -0,0 +1,35 @@
+//go:build darwin
+
+package net
+
+import (
+	"net"
+	"syscall"
+)
+
+func SetTcpInfo(conn *net.TCPConn, usingKeepAlive bool, keepAliveIdel, keepAlivePeriod, keepAliveCount, userTimeout int) error {
+	rawConn, err := conn.SyscallConn()
+	if err != nil {
+		return err
+	}
+	if usingKeepAlive {
+		err = rawConn.Control(func(fd uintptr) {
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_KEEPALIVE, keepAliveIdel)
+			if err != nil {
+				return
+			}
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, 0x101, keepAlivePeriod)
+			if err != nil {
+				return
+			}
+		})
+	} else {
+		err = conn.SetKeepAlive(false)
+	}
+	if userTimeout > 0 {
+		err = rawConn.Control(func(fd uintptr) {
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, 0x12, userTimeout)
+		})
+	}
+	return err
+}

net/setcpinfo_linux.go

@@ -0,0 +1,39 @@
+//go:build !(windows && darwin)
+
+package net
+
+import (
+	"net"
+	"syscall"
+)
+
+func SetTcpInfo(conn *net.TCPConn, usingKeepAlive bool, keepAliveIdel, keepAlivePeriod, keepAliveCount, userTimeout int) error {
+	rawConn, err := conn.SyscallConn()
+	if err != nil {
+		return err
+	}
+	if usingKeepAlive {
+		err = rawConn.Control(func(fd uintptr) {
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, keepAliveIdel)
+			if err != nil {
+				return
+			}
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, keepAlivePeriod)
+			if err != nil {
+				return
+			}
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_KEEPCNT, keepAliveCount)
+			if err != nil {
+				return
+			}
+		})
+	} else {
+		err = conn.SetKeepAlive(false)
+	}
+	if userTimeout > 0 {
+		err = rawConn.Control(func(fd uintptr) {
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, 0x12, userTimeout)
+		})
+	}
+	return err
+}

net/setcpinfo_windows.go

@@ -0,0 +1,33 @@
+//go:build windows
+
+package net
+
+import (
+	"net"
+	"os"
+	"runtime"
+	"syscall"
+	"unsafe"
+)
+
+func SetTcpInfo(conn *net.TCPConn, usingKeepAlive bool, keepAliveIdel, keepAlivePeriod, keepAliveCount, userTimeout int) error {
+	if usingKeepAlive {
+		rawConn, err := conn.SyscallConn()
+		if err != nil {
+			return err
+		}
+		err = rawConn.Control(func(fd uintptr) {
+			ka := syscall.TCPKeepalive{
+				OnOff:    1,
+				Time:     uint32(keepAliveIdel),
+				Interval: uint32(keepAlivePeriod),
+			}
+			ret := uint32(0)
+			size := uint32(unsafe.Sizeof(ka))
+			err = syscall.WSAIoctl(syscall.Handle(fd), syscall.SIO_KEEPALIVE_VALS, (*byte)(unsafe.Pointer(&ka)), size, nil, 0, &ret, nil, 0)
+			runtime.KeepAlive(fd)
+		})
+		return os.NewSyscallError("wsaioctl", err)
+	}
+	return conn.SetKeepAlive(false)
+}

net/sshjar.go

@@ -0,0 +1,145 @@
+package net
+
+import (
+	"b612.me/starcrypto"
+	"b612.me/starlog"
+	"b612.me/starnet"
+	"crypto/elliptic"
+	"encoding/json"
+	"fmt"
+	"github.com/spf13/cobra"
+	"golang.org/x/crypto/ssh"
+	"net"
+	"os"
+	"os/signal"
+	"strings"
+)
+
+var (
+	listenAddr string
+	keyFile    string
+	KeyPasswd  string
+	outpath    string
+	curlUrl    string
+	curlArg    []string
+)
+
+func init() {
+	cmdSSHJar.Flags().StringVarP(&listenAddr, "listen", "l", "0.0.0.0:22", "监听地址")
+	cmdSSHJar.Flags().StringVarP(&keyFile, "key", "k", "", "私钥文件")
+	cmdSSHJar.Flags().StringVarP(&KeyPasswd, "passwd", "p", "", "私钥密码")
+	cmdSSHJar.Flags().StringVarP(&outpath, "output", "o", "", "输出文件")
+}
+
+var cmdSSHJar = &cobra.Command{
+	Use:   "sshjar",
+	Short: "SSH蜜罐",
+	Long:  "SSH蜜罐",
+	Run: func(cmd *cobra.Command, args []string) {
+		runSSHHoneyJar(listenAddr, keyFile, KeyPasswd, outpath)
+	},
+}
+
+func runSSHHoneyJar(listenAddr, keyFile, KeyPasswd, outpath string) {
+	var f *os.File
+	var err error
+	if outpath != "" {
+		f, err = os.OpenFile(outpath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
+		if err != nil {
+			starlog.Errorf("Failed to open file %s (%s)", outpath, err)
+			return
+		}
+	}
+	defer f.Close()
+	config := &ssh.ServerConfig{
+		// 密码验证回调函数
+		PasswordCallback: func(c ssh.ConnMetadata, pass []byte) (*ssh.Permissions, error) {
+			starlog.Infof("Login attempt from %s with %s %s\n", c.RemoteAddr(), c.User(), string(pass))
+			data := []string{c.RemoteAddr().String(), c.User(), string(pass)}
+			bts, _ := json.Marshal(data)
+			if f != nil {
+				f.Write(bts)
+				f.Write([]byte("\n"))
+			}
+			if curlUrl != "" {
+				go func() {
+					data := map[string]string{
+						"ip":     c.RemoteAddr().String(),
+						"user":   c.User(),
+						"passwd": string(pass),
+					}
+					if curlArg != nil && len(curlArg) > 0 {
+						for _, v := range curlArg {
+							args := strings.SplitN(v, ":", 2)
+							if len(args) == 2 {
+								data[args[0]] = args[1]
+							}
+						}
+						starnet.Curl(starnet.NewRequests(curlUrl, []byte(starnet.BuildQuery(data)), "POST"))
+					}
+				}()
+			}
+			return nil, fmt.Errorf("password rejected for %q", c.User())
+		},
+		PublicKeyCallback: func(conn ssh.ConnMetadata, key ssh.PublicKey) (*ssh.Permissions, error) {
+			return nil, fmt.Errorf("public key rejected for %q", conn.User())
+		},
+	}
+	if keyFile == "" {
+		secKey, _, err := starcrypto.GenerateEcdsaKey(elliptic.P256())
+		if err != nil {
+			starlog.Errorf("Failed to generate ECDSA key (%s)", err)
+			return
+		}
+		key, err := ssh.NewSignerFromKey(secKey)
+		if err != nil {
+			starlog.Errorf("Failed to generate signer from key (%s)", err)
+			return
+		}
+		config.AddHostKey(key)
+	} else {
+		keyByte, err := os.ReadFile(keyFile)
+		if err != nil {
+			starlog.Errorf("Failed to read private key from %s (%s)", keyFile, err)
+			return
+		}
+		var key ssh.Signer
+		if KeyPasswd != "" {
+			key, err = ssh.ParsePrivateKeyWithPassphrase(keyByte, []byte(KeyPasswd))
+		} else {
+			key, err = ssh.ParsePrivateKey(keyByte)
+		}
+		if err != nil {
+			starlog.Errorf("Failed to load private key from %s (%s)", keyFile, err)
+			return
+		}
+		config.AddHostKey(key)
+	}
+	listener, err := net.Listen("tcp", listenAddr)
+	if err != nil {
+		starlog.Errorf("Failed to listen on %s (%s)", listenAddr, err)
+		return
+	}
+	starlog.Noticeln("SSH HoneyJar is listening on", listenAddr)
+	sig := make(chan os.Signal, 1)
+	signal.Notify(sig, os.Interrupt, os.Kill)
+	for {
+		select {
+		case <-sig:
+			starlog.Noticef("SSH HoneyJar is shutting down")
+			listener.Close()
+			return
+		default:
+		}
+		conn, err := listener.Accept()
+		if err != nil {
+			continue
+		}
+		starlog.Infof("New connection from %s\n", conn.RemoteAddr())
+		go func(conn net.Conn) {
+			ssh.NewServerConn(conn, config)
+			conn.Close()
+		}(conn)
+	}
+
+}

net/sshjar_test.go

@@ -0,0 +1,7 @@
+package net
+
+import "testing"
+
+func TestSSHJar(t *testing.T) {
+	//runSSHHoneyJar("0.0.0.0:22")
+}

net/tcpclient.go

@@ -0,0 +1,246 @@
+package net
+
+import (
+	"b612.me/stario"
+	"b612.me/starlog"
+	"context"
+	"encoding/hex"
+	"fmt"
+	"net"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"time"
+)
+
+type TcpClient struct {
+	LocalAddr       string
+	RemoteAddr      string
+	UsingKeepAlive  bool
+	KeepAlivePeriod int
+	KeepAliveIdel   int
+	KeepAliveCount  int
+	Interactive     bool
+	UserTimeout     int
+	ShowRecv        bool
+	ShowAsHex       bool
+	SaveToFolder    string
+	Rmt             *TcpConn
+	LogPath         string
+	stopCtx         context.Context
+	stopFn          context.CancelFunc
+}
+
+func (s *TcpClient) Close() error {
+	return s.Rmt.Close()
+}
+
+func (s *TcpClient) handleInteractive() {
+	var currentCmd string
+	notifyMap := make(map[string]chan struct{})
+	if !s.Interactive {
+		return
+	}
+	starlog.Infoln("Interactive mode enabled")
+	for {
+		select {
+		case <-s.stopCtx.Done():
+			starlog.Infoln("Interactive mode stopped due to context done")
+			return
+		default:
+		}
+		cmd := stario.MessageBox("", "").MustString()
+		if cmd == "" {
+			continue
+		}
+		cmdf := strings.Fields(cmd)
+		switch cmdf[0] {
+		case "hex":
+			currentCmd = "hex"
+			starlog.Infoln("Switch to hex mode,send hex to remote client")
+		case "text":
+			currentCmd = "text"
+			starlog.Infoln("Switch to text mode,send text to remote client")
+		case "close":
+			if s.Rmt.TCPConn == nil {
+				starlog.Errorln("No client selected")
+				continue
+			}
+			s.Rmt.TCPConn.Close()
+			starlog.Infof("Client %s closed\n", s.Rmt.RemoteAddr().String())
+			s.Rmt = nil
+			currentCmd = ""
+		case "startauto":
+			if s.Rmt == nil {
+				starlog.Errorln("No client selected")
+				continue
+			}
+			notifyMap[s.Rmt.RemoteAddr().String()] = make(chan struct{})
+			go func(conn *TcpConn) {
+				for {
+					select {
+					case <-notifyMap[conn.RemoteAddr().String()]:
+						starlog.Infoln("Auto send stopped")
+						return
+					default:
+					}
+					_, err := conn.Write([]byte(strings.Repeat("B612", 256)))
+					if err != nil {
+						starlog.Errorln("Write error:", err)
+						return
+					}
+				}
+			}(s.Rmt)
+			starlog.Infoln("Auto send started")
+		case "closeauto":
+			if s.Rmt == nil {
+				starlog.Errorln("No client selected")
+				continue
+			}
+			close(notifyMap[s.Rmt.RemoteAddr().String()])
+		case "send":
+			if s.Rmt == nil {
+				starlog.Errorln("No client selected")
+				continue
+			}
+			if currentCmd == "hex" {
+				data, err := hex.DecodeString(strings.TrimSpace(strings.TrimPrefix(cmd, "send")))
+				if err != nil {
+					starlog.Errorln("Hex decode error:", err)
+					continue
+				}
+				_, err = s.Rmt.Write(data)
+				if err != nil {
+					starlog.Errorln("Write error:", err)
+				} else {
+					if s.Rmt.f != nil {
+						s.Rmt.f.Write([]byte(time.Now().String() + " send\n"))
+						s.Rmt.f.Write(data)
+						s.Rmt.f.Write([]byte("\n"))
+					}
+				}
+			} else {
+				_, err := s.Rmt.Write([]byte(strings.TrimSpace(strings.TrimPrefix(cmd, "send"))))
+				if err != nil {
+					starlog.Errorln("Write error:", err)
+				} else {
+					if s.Rmt.f != nil {
+						s.Rmt.f.Write([]byte(time.Now().String() + " send\n"))
+						s.Rmt.f.Write([]byte(cmdf[1]))
+						s.Rmt.f.Write([]byte("\n"))
+					}
+				}
+			}
+			starlog.Infof("Send to %s success\n", s.Rmt.RemoteAddr().String())
+		}
+	}
+}
+
+func (s *TcpClient) Run() error {
+	var err error
+	s.stopCtx, s.stopFn = context.WithCancel(context.Background())
+	if s.LogPath != "" {
+		err := starlog.SetLogFile(s.LogPath, starlog.Std, true)
+		if err != nil {
+			starlog.Errorln("SetLogFile error:", err)
+			return fmt.Errorf("SetLogFile error: %w", err)
+		}
+	}
+	var localAddr *net.TCPAddr
+	if s.LocalAddr != "" {
+		localAddr, err = net.ResolveTCPAddr("tcp", s.LocalAddr)
+		if err != nil {
+			starlog.Errorln("ResolveTCPAddr error:", err)
+			return fmt.Errorf("ResolveTCPAddr error: %w", err)
+		}
+	}
+	remoteAddr, err := net.ResolveTCPAddr("tcp", s.RemoteAddr)
+	if err != nil {
+		starlog.Errorln("ResolveTCPAddr error:", err)
+		return fmt.Errorf("ResolveTCPAddr error: %w", err)
+	}
+
+	conn, err := net.DialTCP("tcp", localAddr, remoteAddr)
+	if err != nil {
+		starlog.Errorln("Dial TCP error:", err)
+		return fmt.Errorf("Dial TCP error: %w", err)
+	}
+	starlog.Infof("Connected to %s LocalAddr: %s\n", conn.RemoteAddr().String(), conn.LocalAddr().String())
+	if s.Interactive {
+		go s.handleInteractive()
+	}
+	s.Rmt = s.getTcpConn(conn)
+
+	s.handleConn(s.Rmt)
+	return nil
+}
+
+func (s *TcpClient) getTcpConn(conn *net.TCPConn) *TcpConn {
+	var err error
+	var f *os.File
+	if s.SaveToFolder != "" {
+		f, err = os.Create(filepath.Join(s.SaveToFolder, strings.ReplaceAll(conn.RemoteAddr().String(), ":", "_")))
+		if err != nil {
+			starlog.Errorf("Create file error for %s: %v\n", conn.RemoteAddr().String(), err)
+		}
+	}
+	return &TcpConn{
+		TCPConn: conn,
+		f:       f,
+	}
+}
+
+func (s *TcpClient) handleConn(conn *TcpConn) {
+	var err error
+	log := starlog.Std.NewFlag()
+	err = SetTcpInfo(conn.TCPConn, s.UsingKeepAlive, s.KeepAliveIdel, s.KeepAlivePeriod, s.KeepAliveCount, s.UserTimeout)
+	if err != nil {
+		log.Errorf("SetTcpInfo error for %s: %v\n", conn.RemoteAddr().String(), err)
+		conn.Close()
+		return
+	}
+	log.Infof("SetKeepAlive success for %s\n", conn.RemoteAddr().String())
+	log.Infof("KeepAlivePeriod: %d, KeepAliveIdel: %d, KeepAliveCount: %d, UserTimeout: %d\n", s.KeepAlivePeriod, s.KeepAliveIdel, s.KeepAliveCount, s.UserTimeout)
+	if runtime.GOOS != "linux" {
+		log.Warningln("keepAliveCount and userTimeout only work on linux")
+	}
+
+	for {
+		select {
+		case <-s.stopCtx.Done():
+			log.Infof("Connection from %s closed due to context done\n", conn.RemoteAddr().String())
+			conn.Close()
+			return
+		default:
+		}
+		buf := make([]byte, 8192)
+		n, err := conn.Read(buf)
+		if err != nil {
+			log.Errorf("Read error for %s: %v\n", conn.RemoteAddr().String(), err)
+			conn.Close()
+			return
+		}
+		if n > 0 {
+			if s.ShowRecv {
+				if s.ShowAsHex {
+					log.Printf("Recv from %s: %x\n", conn.RemoteAddr().String(), buf[:n])
+				} else {
+					log.Printf("Recv from %s: %s\n", conn.RemoteAddr().String(), string(buf[:n]))
+				}
+			}
+			if conn.f != nil {
+				conn.f.Write([]byte(time.Now().String() + " recv\n"))
+				conn.f.Write(buf[:n])
+				conn.f.Write([]byte("\n"))
+			}
+		}
+	}
+}
+
+func (s *TcpClient) Stop() {
+	s.stopFn()
+	if s.Rmt != nil {
+		s.Rmt.Close()
+	}
+}

net/tcpcmd.go

@@ -0,0 +1,80 @@
+package net
+
+import (
+	"b612.me/starlog"
+	"github.com/spf13/cobra"
+	"os"
+	"os/signal"
+	"time"
+)
+
+var (
+	tcps TcpServer
+	tcpc TcpClient
+)
+
+func init() {
+	CmdTcps.Flags().StringVarP(&tcps.LocalAddr, "local", "l", "0.0.0.0:29127", "本地地址")
+	CmdTcps.Flags().BoolVarP(&tcps.UsingKeepAlive, "keepalive", "k", true, "启用KeepAlive")
+	CmdTcps.Flags().IntVarP(&tcps.KeepAlivePeriod, "keepalive-period", "p", 10, "KeepAlive重试周期（秒）")
+	CmdTcps.Flags().IntVarP(&tcps.KeepAliveIdel, "keepalive-idel", "i", 15, "KeepAlive空闲时间（秒）")
+	CmdTcps.Flags().IntVarP(&tcps.KeepAliveCount, "keepalive-count", "c", 3, "KeepAlive次数）")
+	CmdTcps.Flags().BoolVarP(&tcps.Interactive, "interactive", "I", false, "交互模式")
+	CmdTcps.Flags().IntVarP(&tcps.UserTimeout, "user-timeout", "u", 0, "用户超时时间（毫秒）")
+	CmdTcps.Flags().BoolVarP(&tcps.ShowRecv, "show-recv", "r", true, "显示接收数据")
+	CmdTcps.Flags().BoolVarP(&tcps.ShowAsHex, "show-hex", "H", false, "显示十六进制")
+	CmdTcps.Flags().StringVarP(&tcps.SaveToFolder, "save", "s", "", "保存到文件夹")
+	CmdTcps.Flags().StringVarP(&tcps.LogPath, "log", "L", "", "日志文件路径")
+	Cmd.AddCommand(CmdTcps)
+
+	CmdTcpc.Flags().StringVarP(&tcpc.LocalAddr, "local", "l", "", "本地地址")
+	CmdTcpc.Flags().BoolVarP(&tcpc.UsingKeepAlive, "keepalive", "k", true, "启用KeepAlive")
+	CmdTcpc.Flags().IntVarP(&tcpc.KeepAlivePeriod, "keepalive-period", "p", 1, "KeepAlive重试周期（秒）")
+	CmdTcpc.Flags().IntVarP(&tcpc.KeepAliveIdel, "keepalive-idel", "i", 15, "KeepAlive空闲时间（秒）")
+	CmdTcpc.Flags().IntVarP(&tcpc.KeepAliveCount, "keepalive-count", "c", 3, "KeepAlive次数")
+	CmdTcpc.Flags().BoolVarP(&tcpc.Interactive, "interactive", "I", false, "交互模式")
+	CmdTcpc.Flags().IntVarP(&tcpc.UserTimeout, "user-timeout", "u", 0, "用户超时时间（毫秒）")
+	CmdTcpc.Flags().BoolVarP(&tcpc.ShowRecv, "show-recv", "r", true, "显示接收数据")
+	CmdTcpc.Flags().BoolVarP(&tcpc.ShowAsHex, "show-hex", "H", false, "显示十六进制")
+	CmdTcpc.Flags().StringVarP(&tcpc.SaveToFolder, "save", "s", "", "保存到文件夹")
+	CmdTcpc.Flags().StringVarP(&tcpc.LogPath, "log", "L", "", "日志文件路径")
+
+	Cmd.AddCommand(CmdTcpc)
+}
+
+var CmdTcps = &cobra.Command{
+	Use:   "tcps",
+	Short: "TCP服务端",
+	Run: func(cmd *cobra.Command, args []string) {
+		go func() {
+			s := make(chan os.Signal, 1)
+			signal.Notify(s, os.Interrupt, os.Kill)
+			<-s
+			tcps.Stop()
+			time.Sleep(5 * time.Second)
+			os.Exit(0)
+		}()
+		tcps.Run()
+	},
+}
+
+var CmdTcpc = &cobra.Command{
+	Use:   "tcpc",
+	Short: "TCP客户端",
+	Run: func(cmd *cobra.Command, args []string) {
+		if len(args) == 0 {
+			starlog.Errorln("请指定目标地址")
+			return
+		}
+		tcpc.RemoteAddr = args[0]
+		go func() {
+			s := make(chan os.Signal, 1)
+			signal.Notify(s, os.Interrupt, os.Kill)
+			<-s
+			tcpc.Stop()
+			time.Sleep(5 * time.Second)
+			os.Exit(0)
+		}()
+		tcpc.Run()
+	},
+}

net/tcpserver.go

@@ -0,0 +1,285 @@
+package net
+
+import (
+	"b612.me/stario"
+	"b612.me/starlog"
+	"context"
+	"encoding/hex"
+	"fmt"
+	"net"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"sync"
+	"time"
+)
+
+type TcpConn struct {
+	*net.TCPConn
+	f *os.File
+}
+
+type TcpServer struct {
+	LocalAddr       string
+	UsingKeepAlive  bool
+	KeepAlivePeriod int
+	KeepAliveIdel   int
+	KeepAliveCount  int
+	sync.Mutex
+	Clients      map[string]*TcpConn
+	Interactive  bool
+	UserTimeout  int
+	ShowRecv     bool
+	ShowAsHex    bool
+	SaveToFolder string
+	Listen       *net.TCPListener
+	LogPath      string
+	stopCtx      context.Context
+	stopFn       context.CancelFunc
+}
+
+func (s *TcpServer) Close() error {
+	return s.Listen.Close()
+}
+
+func (s *TcpServer) handleInteractive() {
+	var conn *TcpConn
+	var currentCmd string
+	notifyMap := make(map[string]chan struct{})
+	if !s.Interactive {
+		return
+	}
+	starlog.Infoln("Interactive mode enabled")
+	for {
+		select {
+		case <-s.stopCtx.Done():
+			starlog.Infoln("Interactive mode stopped due to context done")
+			return
+		default:
+		}
+		cmd := stario.MessageBox("", "").MustString()
+		if cmd == "" {
+			continue
+		}
+		cmdf := strings.Fields(cmd)
+		switch cmdf[0] {
+		case "list":
+			s.Lock()
+			for k, v := range s.Clients {
+				starlog.Green("Client %s: %s\n", k, v.RemoteAddr().String())
+			}
+			s.Unlock()
+		case "use":
+			if len(cmdf) < 2 {
+				starlog.Errorln("use command need a client address")
+				continue
+			}
+			conn = s.Clients[cmdf[1]]
+			if conn == nil {
+				starlog.Errorln("Client not found")
+				continue
+			}
+			starlog.Infof("Using client %s\n", conn.RemoteAddr().String())
+		case "hex":
+			currentCmd = "hex"
+			starlog.Infoln("Switch to hex mode,send hex to remote client")
+		case "text":
+			currentCmd = "text"
+			starlog.Infoln("Switch to text mode,send text to remote client")
+		case "close":
+			if conn.TCPConn == nil {
+				starlog.Errorln("No client selected")
+				continue
+			}
+			conn.TCPConn.Close()
+			starlog.Infof("Client %s closed\n", conn.RemoteAddr().String())
+			conn = nil
+			currentCmd = ""
+		case "startauto":
+			if conn == nil {
+				starlog.Errorln("No client selected")
+				continue
+			}
+			notifyMap[conn.RemoteAddr().String()] = make(chan struct{})
+			go func(conn *TcpConn) {
+				for {
+					select {
+					case <-notifyMap[conn.RemoteAddr().String()]:
+						starlog.Infoln("Auto send stopped")
+						return
+					default:
+					}
+					_, err := conn.Write([]byte(strings.Repeat("B612", 256)))
+					if err != nil {
+						starlog.Errorln("Write error:", err)
+						return
+					}
+				}
+			}(conn)
+			starlog.Infoln("Auto send started")
+		case "closeauto":
+			if conn == nil {
+				starlog.Errorln("No client selected")
+				continue
+			}
+			close(notifyMap[conn.RemoteAddr().String()])
+		case "send":
+			if conn == nil {
+				starlog.Errorln("No client selected")
+				continue
+			}
+			if currentCmd == "hex" {
+				data, err := hex.DecodeString(strings.TrimSpace(strings.TrimPrefix(cmd, "send")))
+				if err != nil {
+					starlog.Errorln("Hex decode error:", err)
+					continue
+				}
+				_, err = conn.Write(data)
+				if err != nil {
+					starlog.Errorln("Write error:", err)
+				} else {
+					if conn.f != nil {
+						conn.f.Write([]byte(time.Now().String() + " send\n"))
+						conn.f.Write(data)
+						conn.f.Write([]byte("\n"))
+					}
+				}
+			} else {
+				_, err := conn.Write([]byte(strings.TrimSpace(strings.TrimPrefix(cmd, "send"))))
+				if err != nil {
+					starlog.Errorln("Write error:", err)
+				} else {
+					if conn.f != nil {
+						conn.f.Write([]byte(time.Now().String() + " send\n"))
+						conn.f.Write([]byte(cmdf[1]))
+						conn.f.Write([]byte("\n"))
+					}
+				}
+			}
+			starlog.Infof("Send to %s success\n", conn.RemoteAddr().String())
+		}
+	}
+}
+
+func (s *TcpServer) Run() error {
+	s.stopCtx, s.stopFn = context.WithCancel(context.Background())
+	if s.LogPath != "" {
+		err := starlog.SetLogFile(s.LogPath, starlog.Std, true)
+		if err != nil {
+			starlog.Errorln("SetLogFile error:", err)
+			return fmt.Errorf("SetLogFile error: %w", err)
+		}
+	}
+	s.Clients = make(map[string]*TcpConn)
+	tcpAddr, err := net.ResolveTCPAddr("tcp", s.LocalAddr)
+	if err != nil {
+		starlog.Errorln("ResolveTCPAddr error:", err)
+		return fmt.Errorf("ResolveTCPAddr error: %w", err)
+	}
+	s.Listen, err = net.ListenTCP("tcp", tcpAddr)
+	if err != nil {
+		starlog.Errorln("ListenTCP error:", err)
+		return fmt.Errorf("ListenTCP error: %w", err)
+	}
+	starlog.Infof("TcpServer listen on %s\n", s.LocalAddr)
+	if s.Interactive {
+		go s.handleInteractive()
+	}
+	for {
+		select {
+		case <-s.stopCtx.Done():
+			starlog.Infoln("TcpServer stopped due to context done")
+			return s.Listen.Close()
+		default:
+		}
+		conn, err := s.Listen.AcceptTCP()
+		if err != nil {
+			starlog.Errorln("AcceptTCP error:", err)
+			continue
+		}
+		starlog.Infof("Accept new connection from %s", conn.RemoteAddr().String())
+		s.Lock()
+		s.Clients[conn.RemoteAddr().String()] = s.getTcpConn(conn)
+		s.Unlock()
+		go s.handleConn(s.Clients[conn.RemoteAddr().String()])
+	}
+}
+
+func (s *TcpServer) getTcpConn(conn *net.TCPConn) *TcpConn {
+	var err error
+	var f *os.File
+	if s.SaveToFolder != "" {
+		f, err = os.Create(filepath.Join(s.SaveToFolder, strings.ReplaceAll(conn.RemoteAddr().String(), ":", "_")))
+		if err != nil {
+			starlog.Errorf("Create file error for %s: %v\n", conn.RemoteAddr().String(), err)
+		}
+	}
+	return &TcpConn{
+		TCPConn: conn,
+		f:       f,
+	}
+}
+
+func (s *TcpServer) handleConn(conn *TcpConn) {
+	var err error
+	log := starlog.Std.NewFlag()
+	err = SetTcpInfo(conn.TCPConn, s.UsingKeepAlive, s.KeepAliveIdel, s.KeepAlivePeriod, s.KeepAliveCount, s.UserTimeout)
+	if err != nil {
+		log.Errorf("SetTcpInfo error for %s: %v\n", conn.RemoteAddr().String(), err)
+		s.Lock()
+		delete(s.Clients, conn.RemoteAddr().String())
+		s.Unlock()
+		conn.Close()
+		return
+	}
+	log.Infof("SetKeepAlive success for %s\n", conn.RemoteAddr().String())
+	log.Infof("KeepAlivePeriod: %d, KeepAliveIdel: %d, KeepAliveCount: %d, UserTimeout: %d\n", s.KeepAlivePeriod, s.KeepAliveIdel, s.KeepAliveCount, s.UserTimeout)
+	if runtime.GOOS != "linux" {
+		log.Warningln("keepAliveCount and userTimeout only work on linux")
+	}
+
+	for {
+		select {
+		case <-s.stopCtx.Done():
+			log.Infof("Connection from %s closed due to context done\n", conn.RemoteAddr().String())
+			s.Lock()
+			delete(s.Clients, conn.RemoteAddr().String())
+			s.Unlock()
+			conn.Close()
+			return
+		default:
+		}
+		buf := make([]byte, 8192)
+		n, err := conn.Read(buf)
+		if err != nil {
+			log.Errorf("Read error for %s: %v\n", conn.RemoteAddr().String(), err)
+			s.Lock()
+			delete(s.Clients, conn.RemoteAddr().String())
+			s.Unlock()
+			conn.Close()
+			return
+		}
+		if n > 0 {
+			if s.ShowRecv {
+				if s.ShowAsHex {
+					log.Printf("Recv from %s: %x\n", conn.RemoteAddr().String(), buf[:n])
+				} else {
+					log.Printf("Recv from %s: %s\n", conn.RemoteAddr().String(), string(buf[:n]))
+				}
+			}
+			if conn.f != nil {
+				conn.f.Write([]byte(time.Now().String() + " recv\n"))
+				conn.f.Write(buf[:n])
+				conn.f.Write([]byte("\n"))
+			}
+		}
+	}
+}
+
+func (s *TcpServer) Stop() {
+	s.stopFn()
+	if s.Listen != nil {
+		s.Close()
+	}
+}

netforward/cmd.go

@@ -23,6 +23,12 @@ func init() {
 	CmdNetforward.Flags().BoolVarP(&f.EnableUDP, "enable-udp-forward", "u", true, "enable udp forward mode")
 	CmdNetforward.Flags().Int64VarP(&dialTimeout, "dial-timeout", "d", 10000, "dial timeout milliseconds")
 	CmdNetforward.Flags().Int64VarP(&udpTimeout, "udp-timeout", "D", 60000, "udp connection timeout milliseconds")
+	CmdNetforward.Flags().BoolVarP(&f.UsingKeepAlive, "keepalive", "k", true, "enable keepalive")
+	CmdNetforward.Flags().IntVarP(&f.KeepAlivePeriod, "keepalive-period", "P", 10, "keepalive retry period (seconds)")
+	CmdNetforward.Flags().IntVarP(&f.KeepAliveIdel, "keepalive-idel", "I", 15, "keepalive idel time (seconds)")
+	CmdNetforward.Flags().IntVarP(&f.KeepAliveCount, "keepalive-count", "C", 3, "keepalive count")
+	CmdNetforward.Flags().IntVarP(&f.UserTimeout, "user-timeout", "U", 0, "user timeout (milliseconds)")
+	CmdNetforward.Flags().BoolVarP(&f.IgnoreEof, "ignore-eof", "E", false, "ignore eof")
 }
 
 var CmdNetforward = &cobra.Command{

netforward/forward.go

@@ -6,6 +6,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"io"
 	"net"
 	"strconv"
 	"strings"
@@ -23,11 +24,18 @@ type NetForward struct {
 	DelayMilSec int
 	DelayToward int
 	StdinMode   bool
+	IgnoreEof   bool
 	DialTimeout time.Duration
 	UDPTimeout  time.Duration
 	stopCtx     context.Context
 	stopFn      context.CancelFunc
 	running     int32
+
+	KeepAlivePeriod int
+	KeepAliveIdel   int
+	KeepAliveCount  int
+	UserTimeout     int
+	UsingKeepAlive  bool
 }
 
 func (n *NetForward) Close() {
@@ -145,6 +153,12 @@ func (n *NetForward) runTCP() error {
 			log.Infof("Delay %d ms\n", n.DelayMilSec)
 			time.Sleep(time.Millisecond * time.Duration(n.DelayMilSec))
 		}
+		err = SetTcpInfo(conn.(*net.TCPConn), n.UsingKeepAlive, n.KeepAliveIdel, n.KeepAlivePeriod, n.KeepAliveCount, n.UserTimeout)
+		if err != nil {
+			log.Errorf("SetTcpInfo error for %s: %v\n", conn.RemoteAddr().String(), err)
+			conn.Close()
+			continue
+		}
 		go func(conn net.Conn) {
 			rmt, err := net.DialTimeout("tcp", n.RemoteURI, n.DialTimeout)
 			if err != nil {
@@ -152,9 +166,17 @@ func (n *NetForward) runTCP() error {
 				conn.Close()
 				return
 			}
+			err = SetTcpInfo(rmt.(*net.TCPConn), n.UsingKeepAlive, n.KeepAliveIdel, n.KeepAlivePeriod, n.KeepAliveCount, n.UserTimeout)
+			if err != nil {
+				log.Errorf("SetTcpInfo error for %s: %v\n", conn.RemoteAddr().String(), err)
+				rmt.Close()
+				return
+			}
 			log.Infof("TCP Connect %s <==> %s\n", conn.RemoteAddr().String(), rmt.RemoteAddr().String())
 			n.copy(rmt, conn)
 			log.Noticef("TCP Connection Closed  %s <==> %s\n", conn.RemoteAddr().String(), n.RemoteURI)
+			conn.Close()
+			rmt.Close()
 		}(conn)
 	}
 }
@@ -289,6 +311,9 @@ func (n *NetForward) copy(dst, src net.Conn) {
 		for {
 			count, err := src.Read(bufsize)
 			if err != nil {
+				if n.IgnoreEof && err == io.EOF {
+					continue
+				}
 				dst.Close()
 				src.Close()
 				return
@@ -310,6 +335,9 @@ func (n *NetForward) copy(dst, src net.Conn) {
 		for {
 			count, err := dst.Read(bufsize)
 			if err != nil {
+				if n.IgnoreEof && err == io.EOF {
+					continue
+				}
 				src.Close()
 				dst.Close()
 				return

netforward/setcpinfo_darwin.go

@@ -0,0 +1,35 @@
+//go:build darwin
+
+package netforward
+
+import (
+	"net"
+	"syscall"
+)
+
+func SetTcpInfo(conn *net.TCPConn, usingKeepAlive bool, keepAliveIdel, keepAlivePeriod, keepAliveCount, userTimeout int) error {
+	rawConn, err := conn.SyscallConn()
+	if err != nil {
+		return err
+	}
+	if usingKeepAlive {
+		err = rawConn.Control(func(fd uintptr) {
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_KEEPALIVE, keepAliveIdel)
+			if err != nil {
+				return
+			}
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, 0x101, keepAlivePeriod)
+			if err != nil {
+				return
+			}
+		})
+	} else {
+		err = conn.SetKeepAlive(false)
+	}
+	if userTimeout > 0 {
+		err = rawConn.Control(func(fd uintptr) {
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, 0x12, userTimeout)
+		})
+	}
+	return err
+}

netforward/setcpinfo_linux.go

@@ -0,0 +1,39 @@
+//go:build !(windows && darwin)
+
+package netforward
+
+import (
+	"net"
+	"syscall"
+)
+
+func SetTcpInfo(conn *net.TCPConn, usingKeepAlive bool, keepAliveIdel, keepAlivePeriod, keepAliveCount, userTimeout int) error {
+	rawConn, err := conn.SyscallConn()
+	if err != nil {
+		return err
+	}
+	if usingKeepAlive {
+		err = rawConn.Control(func(fd uintptr) {
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, keepAliveIdel)
+			if err != nil {
+				return
+			}
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, keepAlivePeriod)
+			if err != nil {
+				return
+			}
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_KEEPCNT, keepAliveCount)
+			if err != nil {
+				return
+			}
+		})
+	} else {
+		err = conn.SetKeepAlive(false)
+	}
+	if userTimeout > 0 {
+		err = rawConn.Control(func(fd uintptr) {
+			err = syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, 0x12, userTimeout)
+		})
+	}
+	return err
+}

netforward/setcpinfo_windows.go

@@ -0,0 +1,33 @@
+//go:build windows
+
+package netforward
+
+import (
+	"net"
+	"os"
+	"runtime"
+	"syscall"
+	"unsafe"
+)
+
+func SetTcpInfo(conn *net.TCPConn, usingKeepAlive bool, keepAliveIdel, keepAlivePeriod, keepAliveCount, userTimeout int) error {
+	if usingKeepAlive {
+		rawConn, err := conn.SyscallConn()
+		if err != nil {
+			return err
+		}
+		err = rawConn.Control(func(fd uintptr) {
+			ka := syscall.TCPKeepalive{
+				OnOff:    1,
+				Time:     uint32(keepAliveIdel),
+				Interval: uint32(keepAlivePeriod),
+			}
+			ret := uint32(0)
+			size := uint32(unsafe.Sizeof(ka))
+			err = syscall.WSAIoctl(syscall.Handle(fd), syscall.SIO_KEEPALIVE_VALS, (*byte)(unsafe.Pointer(&ka)), size, nil, 0, &ret, nil, 0)
+			runtime.KeepAlive(fd)
+		})
+		return os.NewSyscallError("wsaioctl", err)
+	}
+	return conn.SetKeepAlive(false)
+}

smtpclient/smtp.go

@@ -28,6 +28,8 @@ var useHTML bool
 var user, pwd, server string
 var skipInsecure, usingFile bool
 var useTLS int
+var hostname string
+var autoHostname bool
 
 func init() {
 	Cmd.Flags().BoolVarP(&usingFile, "file", "F", false, "using file")
@@ -45,6 +47,8 @@ func init() {
 	Cmd.Flags().StringVarP(&server, "server", "S", "127.0.0.1:25", "server")
 	Cmd.Flags().IntVarP(&useTLS, "tls", "l", 0, "use tls,1 means use tls,2 means use starttls,other means not use tls")
 	Cmd.Flags().BoolVarP(&skipInsecure, "skip-insecure", "i", false, "skip insecure")
+	Cmd.Flags().StringVarP(&hostname, "hostname", "n", "", "hostname")
+	Cmd.Flags().BoolVarP(&autoHostname, "auto-hostname", "N", false, "auto hostname")
 }
 
 func run() {
@@ -112,16 +116,28 @@ func run() {
 			}
 		}
 	}
+
+	if autoHostname && hostname == "" {
+		hostname = strings.Split(server, ":")[0]
+	}
 	var auth smtp.Auth
 	if user != "" && pwd != "" {
-		auth = smtp.PlainAuth("", user, pwd, server)
+		auth = smtp.PlainAuth("", user, pwd, hostname)
 	}
+
 	switch useTLS {
 	case 1:
-		err = mail.SendWithTLS(server, auth, &tls.Config{InsecureSkipVerify: skipInsecure})
+		starlog.Noticef("Mail send method:TLS InsecureSkipVerify:%v ServerName:%v\n", skipInsecure, hostname)
+		err = mail.SendWithTLS(server, auth, &tls.Config{
+			InsecureSkipVerify: skipInsecure,
+			ServerName:         hostname,
+		})
 	case 2:
-		err = mail.SendWithStartTLS(server, auth, &tls.Config{InsecureSkipVerify: skipInsecure})
+		starlog.Noticef("Mail send method:StartTLS InsecureSkipVerify:%v ServerName:%v\n", skipInsecure, hostname)
+		err = mail.SendWithStartTLS(server, auth, &tls.Config{InsecureSkipVerify: skipInsecure,
+			ServerName: hostname})
 	default:
+		starlog.Noticef("Mail send method:Normal\n")
 		err = mail.Send(server, auth)
 	}
 	if err != nil {

tls/cert.go

@@ -9,18 +9,33 @@ import (
 	"encoding/pem"
 	"fmt"
 	"github.com/spf13/cobra"
+	"golang.org/x/net/idna"
+	"golang.org/x/net/proxy"
+	"net"
 	"os"
 	"path/filepath"
+	"strconv"
 	"strings"
+	"sync"
 	"time"
 )
 
 var hideDetail bool
 var dump string
+var reqRawIP int
+var timeoutMillSec int
+var socks5 string
+var socks5Auth string
+var showCA bool
 
 func init() {
 	Cmd.Flags().BoolVarP(&hideDetail, "hide-detail", "H", false, "隐藏证书详细信息")
 	Cmd.Flags().StringVarP(&dump, "dump", "d", "", "将证书保存到文件")
+	Cmd.Flags().IntVarP(&reqRawIP, "resolve-ip", "r", 0, "使用解析到的IP地址进行连接，输入数字表示使用解析到的第几个IP地址")
+	Cmd.Flags().IntVarP(&timeoutMillSec, "timeout", "t", 5000, "连接超时时间(毫秒)")
+	Cmd.Flags().StringVarP(&socks5, "socks5", "p", "", "socks5代理，示例：127.0.0.1:1080")
+	Cmd.Flags().StringVarP(&socks5Auth, "socks5-auth", "A", "", "socks5代理认证，示例：username:password")
+	Cmd.Flags().BoolVarP(&showCA, "show-ca", "c", false, "显示CA证书")
 }
 
 var Cmd = &cobra.Command{
@@ -29,25 +44,155 @@ var Cmd = &cobra.Command{
 	Long:  "查看TLS证书信息",
 	Run: func(cmd *cobra.Command, args []string) {
 		for _, target := range args {
-			showTls(target, !hideDetail, dump)
+			showTls(target, !hideDetail, showCA, reqRawIP, dump, time.Duration(timeoutMillSec)*time.Millisecond)
 		}
 	},
 }
 
-func showTls(target string, showDetail bool, dumpPath string) {
-	if !strings.Contains(target, ":") {
-		target += ":443"
+func showTls(target string, showDetail, showCA bool, reqRawIP int, dumpPath string, timeout time.Duration) {
+	var err error
+	{
+		sp := strings.Split(target, ":")
+		if len(sp) < 2 {
+			target = target + ":443"
+		} else {
+			if _, err := strconv.Atoi(sp[len(sp)-1]); err != nil {
+				target = target + ":443"
+			}
+		}
+	}
+	if timeout == 0 {
+		timeout = 5 * time.Second
+	}
+	hostname := strings.Split(target, ":")[0]
+	if strings.Count(target, ":") == 2 {
+		strs := strings.Split(target, ":")
+		if len(strs) != 3 {
+			starlog.Errorln("invalid target format")
+			return
+		}
+		target = strs[0] + ":" + strs[2]
+		hostname = strs[1]
+	}
+	if reqRawIP > 0 {
+		domain := strings.Split(target, ":")[0]
+		ips, err := net.LookupIP(domain)
+		if err != nil {
+			starlog.Errorln("failed to resolve domain: " + err.Error())
+			return
+		}
+		if len(ips) == 0 {
+			starlog.Errorln("no ip found for domain")
+			return
+		}
+		for _, v := range ips {
+			starlog.Infof("解析到的IP地址为: %s\n", v.String())
+		}
+		if reqRawIP > len(ips) {
+			reqRawIP = len(ips)
+		}
+		target = ips[reqRawIP-1].String() + ":443"
+		hostname = ips[reqRawIP-1].String()
+		starlog.Noticeln("使用解析到的IP地址进行连接:", target)
+	}
+	starlog.Noticef("将使用如下地址连接：%s ; ServerName: %s\n", target, hostname)
+	punyCode, err := idna.ToASCII(hostname)
+	if err == nil {
+		if punyCode != hostname {
+			starlog.Infoln("检测到域名中含有非ASCII字符，PunyCode转换后为:", punyCode)
+			hostname = punyCode
+		}
 	}
 	starlog.Infof("正在连接服务器: %s\n", target)
-	conn, err := tls.Dial("tcp", target, &tls.Config{
-		InsecureSkipVerify: true,
-	})
-	if err != nil {
-		starlog.Errorln("failed to connect: " + err.Error())
-		return
+	var netDialer = &net.Dialer{
+		Timeout: timeout,
+	}
+	var socksDialer *proxy.Dialer
+	if socks5 != "" {
+		var auth *proxy.Auth
+		if socks5Auth != "" {
+			up := strings.SplitN(socks5Auth, ":", 2)
+			if len(up) == 2 {
+				auth = &proxy.Auth{
+					User:     up[0],
+					Password: up[1],
+				}
+			} else {
+				starlog.Errorln("socks5认证格式错误")
+				return
+			}
+		}
+		s5Dial, err := proxy.SOCKS5("tcp", socks5, auth, proxy.Direct)
+		if err == nil {
+			socksDialer = &s5Dial
+		} else {
+			starlog.Errorln("socks5代理错误:", err)
+			return
+		}
+	}
+	var verifyErr error
+	var wg sync.WaitGroup
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		var conn *tls.Conn
+		if socksDialer == nil {
+			conn, verifyErr = tls.DialWithDialer(netDialer, "tcp", target, &tls.Config{
+				InsecureSkipVerify: false,
+				ServerName:         hostname,
+				MinVersion:         tls.VersionSSL30,
+			})
+			if verifyErr == nil {
+				conn.Close()
+			}
+		} else {
+			con, err := (*socksDialer).Dial("tcp", target)
+			if err != nil {
+				verifyErr = err
+				return
+			}
+			conn = tls.Client(con, &tls.Config{
+				InsecureSkipVerify: false,
+				ServerName:         hostname,
+				MinVersion:         tls.VersionSSL30,
+			})
+			verifyErr = conn.Handshake()
+			con.Close()
+		}
+	}()
+	var conn *tls.Conn
+
+	if socksDialer == nil {
+		conn, err = tls.DialWithDialer(netDialer, "tcp", target, &tls.Config{
+			InsecureSkipVerify: true,
+			ServerName:         hostname,
+			MinVersion:         tls.VersionSSL30,
+		})
+		if err != nil {
+			starlog.Errorln("failed to connect: " + err.Error())
+			return
+		}
+	} else {
+		con, err := (*socksDialer).Dial("tcp", target)
+		if err != nil {
+			starlog.Errorln("failed to connect: " + err.Error())
+			return
+		}
+		defer con.Close()
+		conn = tls.Client(con, &tls.Config{
+			InsecureSkipVerify: true,
+			ServerName:         hostname,
+			MinVersion:         tls.VersionSSL30,
+		})
+		err = conn.Handshake()
+		if err != nil {
+			starlog.Errorln("failed to handshake: " + err.Error())
+			return
+		}
+
 	}
 	defer conn.Close()
-	starlog.Infoln("连接成功，正在获取证书信息")
+	starlog.Infof("连接成功，对方IP:%s，正在获取证书信息\n", conn.RemoteAddr().String())
 	certs := conn.ConnectionState().PeerCertificates
 	if len(certs) == 0 {
 		starlog.Errorln("no certificate found")
@@ -58,11 +203,11 @@ func showTls(target string, showDetail bool, dumpPath string) {
 
 	switch state.Version {
 	case tls.VersionSSL30:
-		starlog.Infoln("当前TLS版本: SSL 3.0")
+		starlog.Warningln("当前TLS版本: SSL 3.0")
 	case tls.VersionTLS10:
-		starlog.Infoln("当前TLS版本: TLS 1.0")
+		starlog.Warningln("当前TLS版本: TLS 1.0")
 	case tls.VersionTLS11:
-		starlog.Infoln("当前TLS版本: TLS 1.1")
+		starlog.Warningln("当前TLS版本: TLS 1.1")
 	case tls.VersionTLS12:
 		starlog.Infoln("当前TLS版本: TLS 1.2")
 	case tls.VersionTLS13:
@@ -123,13 +268,22 @@ func showTls(target string, showDetail bool, dumpPath string) {
 		starlog.Infoln("当前加密套件：", state.CipherSuite)
 	}
 	starlog.Infoln("服务器名称:", state.ServerName)
-
+	wg.Wait()
+	if verifyErr != nil {
+		starlog.Red("证书验证失败: " + verifyErr.Error())
+	} else {
+		starlog.Green("证书验证成功")
+	}
 	if showDetail {
 		for _, c := range certs {
-			if c.IsCA {
+			if c.IsCA && !showCA {
 				continue
 			}
-			fmt.Printf("----------\n证书基础信息: %+v\n", c.Subject)
+			fmt.Printf("----------\n")
+			if c.IsCA {
+				fmt.Println("！这是一个CA证书！")
+			}
+			fmt.Printf("证书基础信息: %+v\n", c.Subject)
 			fmt.Printf("证书颁发者: %+v\n", c.Issuer)
 			fmt.Printf("证书生效时间: %+v 距今：%.1f天\n", c.NotBefore.In(time.Local), time.Since(c.NotBefore).Hours()/24)
 			fmt.Printf("证书过期时间: %+v 剩余：%.1f天\n", c.NotAfter.In(time.Local), c.NotAfter.Sub(time.Now()).Hours()/24)

whois/cmd.go

@@ -1,19 +1,28 @@
 package whois
 
 import (
+	"b612.me/starlog"
 	"b612.me/staros"
 	"github.com/likexian/whois"
 	"github.com/spf13/cobra"
+	"golang.org/x/net/proxy"
 	"os"
+	"strings"
 	"time"
 )
 
 var timeout int
 var output string
+var whoisServer []string
+var socks5 string
+var socks5Auth string
 
 func init() {
 	Cmd.Flags().IntVarP(&timeout, "timeout", "t", 20, "超时时间")
 	Cmd.Flags().StringVarP(&output, "output", "o", "", "输出文件夹")
+	Cmd.Flags().StringSliceVarP(&whoisServer, "server", "s", nil, "whois服务器")
+	Cmd.Flags().StringVarP(&socks5, "socks5", "p", "", "socks5代理，示例：127.0.0.1:1080")
+	Cmd.Flags().StringVarP(&socks5Auth, "socks5-auth", "A", "", "socks5代理认证，示例：username:password")
 }
 
 var Cmd = &cobra.Command{
@@ -30,9 +39,31 @@ var Cmd = &cobra.Command{
 			output = ""
 		}
 		c := whois.NewClient()
+		if socks5 != "" {
+			var auth *proxy.Auth
+			if socks5Auth != "" {
+				up := strings.SplitN(socks5Auth, ":", 2)
+				if len(up) == 2 {
+					auth = &proxy.Auth{
+						User:     up[0],
+						Password: up[1],
+					}
+				} else {
+					starlog.Errorln("socks5认证格式错误")
+					return
+				}
+			}
+			s5Dial, err := proxy.SOCKS5("tcp", socks5, auth, proxy.Direct)
+			if err == nil {
+				c.SetDialer(s5Dial)
+			} else {
+				starlog.Errorln("socks5代理错误:", err)
+				return
+			}
+		}
 		c.SetTimeout(time.Second * time.Duration(timeout))
 		for _, v := range args {
-			data, err := c.Whois(v)
+			data, err := c.Whois(v, whoisServer...)
 			cmd.Println("Query:", v)
 			if err != nil {
 				cmd.Println("查询失败:", err)