Go语言实现钉钉发送通知

package mainimport (   "bufio"   "io"   "fmt"   "io/ioutil"   "os/exec"   "net/http"   "os"   "strings")func GetKey() (timestamp string ,sign string, err error){   cmd := exec.Command("/bin/python", "/application/scripts/hezhong_host_status/aaa.py")   stdout , err := cmd.StdoutPipe()   if err != nil {      fmt.Println("Error:can not obtain stdout pipe for command:%s \n", err)      return timestamp , sign,  err   }   if err := cmd.Start() ; err != nil {      fmt.Println("Error:The command is err ",err)      return  timestamp,  sign,err   }   var Key []string   //读取所有输出   bytes := bufio.NewReader(stdout)   for {      line ,err:= bytes.ReadString('\n')      if err == io.EOF{         break      }      if err != nil {         fmt.Println("Read Err:",err)      }      Key = append(Key,line)   }   if err := cmd.Wait();err!= nil{      fmt.Println("Wait",err.Error())      return  timestamp, sign ,err   }   timestamp = Key[0]   sign = Key[1]   return timestamp ,sign ,nil}func SendDingMsg(msg string) {   //请求地址模板   timestamp , sign , err := GetKey()   if err != nil {      fmt.Println("Get Key Err:",err)   }   timestamp = strings.TrimRight(timestamp, "\n")   sign = strings.TrimRight(sign, "\n")   //timestamp := time.Now().UnixNano() / 1e6   //timestamp := int64(1572870805748)   //sign := "oJ5SHD3IwCWVIcL78k3pgX0tfQnjDfcDZMPXAI%2BvrFE%3D"   webHook := "https://oapi.dingtalk.com/robot/send?access_token=628d11124aef5f9efe2a8c8a6b5afa2b67ab01dxxxxxxxxxxxxxxxxxxxxx&"+ "timestamp=" + timestamp + "&sign=" + sign   content := `{"msgtype": "text",      "text": {"content": "`+ msg + `"},                "at": {                     "atMobiles": [                         "18301371817"                     ],                     "isAtAll": true                }   }`   //创建一个请求   req, err := http.NewRequest("POST", webHook, strings.NewReader(content))   if err != nil {      fmt.Println(err)   }   client := &http.Client{}   //设置请求头   req.Header.Set("Content-Type", "application/json")   req.Header.Set("User-agent","firefox")   //发送请求   resp, err := client.Do(req)   //关闭请求   defer resp.Body.Close()   fmt.Println(resp.StatusCode)   body,_ := ioutil.ReadAll(resp.Body)   fmt.Println(string(body))   if err != nil {      fmt.Println("handle error")   }}func main(){   SendDingMsg(os.Args[1])}

辅助Python脚本：

#!python 2.7import timeimport hmacimport hashlibimport base64import urllibtimestamp = long(round(time.time() * 1000))secret = 'this is secret'secret_enc = bytes(secret).encode('utf-8')string_to_sign = '{}\n{}'.format(timestamp, secret)string_to_sign_enc = bytes(string_to_sign).encode('utf-8')hmac_code = hmac.new(secret_enc, string_to_sign_enc, digestmod=hashlib.sha256).digest()sign = urllib.quote_plus(base64.b64encode(hmac_code))print(timestamp)print(sign)