proxy ver1

pkg/common/common.go

@@ -0,0 +1,24 @@
+package common
+
+import (
+	"net"
+	"ssh-proxy/pkg/logger"
+	"strconv"
+	"time"
+)
+
+func CheckRemoteSSH(host string, port int, timeout int) bool {
+	log := logger.ColorLogger{}
+	connTimeout := time.Duration(timeout) * time.Second
+	if connTimeout <= 0 {
+		connTimeout = time.Second * 5
+	}
+
+	conn, err := net.DialTimeout("tcp", net.JoinHostPort(host, strconv.Itoa(port)), connTimeout)
+	if err != nil {
+		log.Trace("Check Remote Host SSH Fail: Host(%s:%d) %s", host, port, err)
+		return false
+	}
+	defer conn.Close()
+	return true
+}

pkg/common/common_test.go

@@ -0,0 +1,33 @@
+package common
+
+import "testing"
+
+func TestCheckRemoteSSH(t *testing.T) {
+	type args struct {
+		host    string
+		port    int
+		timeout int
+	}
+	tests := []struct {
+		name string
+		args args
+		want bool
+	}{
+		{
+			name: "test check localhost ssh port",
+			args: args{
+				host:    "localhost",
+				port:    22,
+				timeout: 5,
+			},
+			want: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := CheckRemoteSSH(tt.args.host, tt.args.port, tt.args.timeout); got != tt.want {
+				t.Errorf("CheckRemoteSSH() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}