Support ProxyJump option when using ssh command (#1004)

* Add proxyjump func

* Run go mod tidy

* Run make fmt

config/config.go

@@ -1035,6 +1035,7 @@ type ServerInfo struct {
 	ServerName             string                      `toml:"-" json:"serverName,omitempty"`
 	User                   string                      `toml:"user,omitempty" json:"user,omitempty"`
 	Host                   string                      `toml:"host,omitempty" json:"host,omitempty"`
+	JumpServer             []string                    `toml:"jumpServer,omitempty" json:"jumpServer,omitempty"`
 	Port                   string                      `toml:"port,omitempty" json:"port,omitempty"`
 	SSHConfigPath          string                      `toml:"sshConfigPath,omitempty" json:"sshConfigPath,omitempty"`
 	KeyPath                string                      `toml:"keyPath,omitempty" json:"keyPath,omitempty"`

config/tomlloader.go

@@ -57,6 +57,11 @@ func (c TOMLLoader) Load(pathToToml, keyPass string) error {
 				return xerrors.Errorf("%s is invalid. host is empty", serverName)
 			}
 
+			s.JumpServer = v.JumpServer
+			if len(s.JumpServer) == 0 {
+				s.JumpServer = d.JumpServer
+			}
+
 			switch {
 			case v.Port != "":
 				s.Port = v.Port

scan/executil.go

@@ -287,6 +287,10 @@ func sshExecExternal(c conf.ServerInfo, cmd string, sudo bool) (result execResul
 		defaultSSHArgs = append(defaultSSHArgs, "-vvv")
 	}
 
+	if len(c.JumpServer) != 0 {
+		defaultSSHArgs = append(defaultSSHArgs, "-J", strings.Join(c.JumpServer, ","))
+	}
+
 	args := append(defaultSSHArgs, fmt.Sprintf("%s@%s", c.User, c.Host))
 	args = append(args, "-p", c.Port)
 	if 0 < len(c.KeyPath) {