钉钉自定义机器人Golang语言签名算法

timestamp+"\n"+

看了官方文档里面有Java语言、python语言，居然没有Golang语言的，作为一个Java兼Golang工程师，对Golang感到不平衡，自己写一个吧，对标Java语言，代码如下：

签名计算示例代码（Java）

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import java.net.URLEncoder;

public class Test{
    public static void main(String[] args) throws Exception{
        Long timestamp = System.currentTimeMillis();
        String secret = "this is secret";

        String stringToSign = timestamp + "\n" + secret;
        Mac mac = Mac.getInstance("HmacSHA256");
        mac.init(new SecretKeySpec(secret.getBytes("UTF-8"), "HmacSHA256"));
        byte[] signData = mac.doFinal(stringToSign.getBytes("UTF-8"));
        String sign = URLEncoder.encode(new String(Base64.encodeBase64(signData)),"UTF-8");
        System.out.println(sign);
    }

}

签名计算示例代码（python 3.8）

import time
import hmac
import hashlib
import base64
import urllib.parse

timestamp = str(round(time.time() * 1000))
secret = 'this is secret'
secret_enc = secret.encode('utf-8')
string_to_sign = '{}\n{}'.format(timestamp, secret)
string_to_sign_enc = string_to_sign.encode('utf-8')
hmac_code = hmac.new(secret_enc, string_to_sign_enc, digestmod=hashlib.sha256).digest()
sign = urllib.parse.quote_plus(base64.b64encode(hmac_code))
print(timestamp)
print(sign)

签名计算示例代码（Golang）

package main

import (
	"crypto/hmac"
	"crypto/sha256"
	"encoding/base64"
	"fmt"
	"net/url"
	"time"
)

func main() {
	timestamp := time.Now().UnixMilli()
	secret := "this is secret"

	stringToSign := fmt.Sprintf("%d\n%s", timestamp, secret)
	hash := hmac.New(sha256.New, []byte(secret))
	hash.Write([]byte(stringToSign))
	signData := hash.Sum(nil)
	sign := url.QueryEscape(base64.StdEncoding.EncodeToString(signData))
	fmt.Println(sign)
}

完整的Demo代码