gin server concept to execute bash commands

main.go

package main

import (
	"encoding/json"
	"net/http"
	"os/exec"

	log "github.com/Sirupsen/logrus"
	"github.com/gin-gonic/gin"
)

type Comand struct {
	Text  string `json:"text"`
	Flags string `json:"flags,omitempty"`
}

func status(c *gin.Context) {
	c.JSON(200, gin.H{
		"message": "pong",
	})
}

func execCmd(comand string) []byte {
	cmdStr := comand
	cmd := exec.Command("/bin/sh", "-c", cmdStr)
	result, err := cmd.Output()

	if err != nil {
		log.Error(err.Error())
		return []byte("")
	}
	return result
}

func comand(c *gin.Context) {
	var cmd Comand
	decoder := json.NewDecoder(c.Request.Body)
	errDecode := decoder.Decode(&cmd)
	if errDecode != nil {
		log.Error(errDecode)
		c.String(http.StatusBadRequest, "Bad JSON encoding")
		return
	}

	result := execCmd(cmd.Text)
	//n := bytes.IndexByte(result, 0)
	resultString := string(result[:])

	log.Info(cmd, resultString)

	c.JSON(200, gin.H{"status": "success", "result": resultString})
}

func main() {
	r := gin.Default()
	r.GET("/ping", status)
	r.POST("/exec", comand)
	r.Run() // listen and serve on 0.0.0.0:8080
}