Accessing server APIs

https://cloudrecord-api.zego.im/?Action=xxx
&AppId=1234567890
&Timestamp=1234567890
&Signature=Pc5WB8gokVn0xfeu%2FZV%2BiNM1dgI%3D
&SignatureVersion=2.0
&SignatureNonce=15215528852396
&<Non-common Request Parameters>

https://cloudrecord-api.zego.im/?Action=xxx
&AppId=1234567890
&Timestamp=1234567890
&Signature=Pc5WB8gokVn0xfeu%2FZV%2BiNM1dgI%3D
&SignatureVersion=2.0
&SignatureNonce=15215528852396

{
    "Code": 0,
    "Message": "",
    "RequestId": "8411281679140263090",
    ......
}

import (
   "crypto/md5"
   "crypto/rand"
   "encoding/hex"
   "fmt"
   "log"
   "time"
)
// Signature=md5(AppId + SignatureNonce + ServerSecret + Timestamp)
func GenerateSignature(appId uint32, signatureNonce string, serverSecret string, timestamp int64) (Signature string){
   data := fmt.Sprintf("%d%s%s%d", appId, signatureNonce, serverSecret, timestamp)
   h := md5.New()
   h.Write([]byte(data))
   return hex.EncodeToString(h.Sum(nil))
}
func main() {
   /* Generate a 16-character random hexadecimal string (16 bits) */
   nonceByte := make([]byte, 8)
   rand.Read(nonceByte)
   signatureNonce := hex.EncodeToString(nonceByte)
   log.Printf(signatureNonce)
   appId := 12345       // Use your appId and serverSecret
   serverSecret := "9193cc662a4c0ec135ec71fb57194b38"
   timestamp := time.Now().Unix()
   /* appId:12345
      signatureNonce:4fd24687296dd9f3
      serverSecret:9193cc662a4c0ec135ec71fb57194b38
      timestamp:1615186943      2021/03/08 15:02:23
      signature:43e5cfcca828314675f91b001390566a
    */
   log.Printf("signature:%v", GenerateSignature(uint32(appId), signatureNonce, serverSecret, timestamp))
}

# -*- coding: UTF-8 -*-
import secrets
import string
import hashlib
import time
#Signature=md5(AppId + SignatureNonce + ServerSecret + Timestamp)
def GenerateSignature(appId, signatureNonce, serverSecret, timestamp):
    str1 = str(appId) + signatureNonce + serverSecret + str(timestamp)
    hash = hashlib.md5()
    hash.update(str1.encode("utf8"))
    signature = hash.hexdigest()
    return signature

def main():
    # Generate a 16-character hexadecimal random string (16 bits)
    signatureNonce = secrets.token_hex(8)

    # Use your appId and serverSecret
    appId = 12345
    serverSecret = "9193cc662a4c0ec135ec71fb57194b38"
    # Get a 10-digit Unix timestamp
    timestamp = int(time.time())
    print(GenerateSignature(appId,signatureNonce,serverSecret,timestamp))

if __name__ == '__main__':
    main()

import java.security.MessageDigest;
import java.security.SecureRandom;

public class Md5 {
    /**
     * Convert byte array to hexadecimal
     * @param bytes The byte array to be converted
     * @return The converted Hex string
     */
    public static String bytesToHex(byte[] bytes) {
        StringBuffer md5str = new StringBuffer();
        // Convert each byte in the array to a hexadecimal and concatenate into an MD5 string
        int digital;
        for (int i = 0; i < bytes.length; i++) {
            digital = bytes[i];
            if (digital < 0) {
                digital += 256;
            }
            if (digital < 16) {
                md5str.append("0");
            }
            md5str.append(Integer.toHexString(digital));
        }
        return md5str.toString();
    }

    // Signature=md5(AppId + SignatureNonce + ServerSecret + Timestamp)
    public static String GenerateSignature(long appId, String signatureNonce, String serverSecret, long timestamp){
        String str = String.valueOf(appId) + signatureNonce + serverSecret + String.valueOf(timestamp);
        String signature = "";
        try{
            // Create an object that provides a message digest algorithm, initialized as an MD5 algorithm object
            MessageDigest md = MessageDigest.getInstance("MD5");
            // Compute and obtain the byte array
            byte[] bytes = md.digest(str.getBytes("utf-8"));
            // Convert each byte in the array to hexadecimal and concatenate into an MD5 string
            signature = bytesToHex(bytes);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return signature;
    }

    public static void main(String[] args){
        // Generate a 16-character random hexadecimal string (16 characters)
        byte[] bytes = new byte[8];

        // Use SecureRandom to get a high-strength secure random number generator
        SecureRandom sr = new SecureRandom();

        sr.nextBytes(bytes);
        String signatureNonce = bytesToHex(bytes);
        long appId = 12345L;       // Use your appId and serverSecret, add uppercase L or lowercase l after numbers to indicate long type
        String serverSecret = "9193cc662a4c0ec135ec71fb57194b38";
        long timestamp = System.currentTimeMillis() / 1000L;
        System.out.println(GenerateSignature(appId,signatureNonce,serverSecret,timestamp));
    }
}

<?php
function GenerateSignature($appId, $signatureNonce, $serverSecret, $timestamp)
{
    $str = $appId.$signatureNonce.$serverSecret.$timestamp;
    $signature = md5($str);
    return $signature;
}

// Generate a 16-bit hexadecimal random string
$signatureNonce = bin2hex(random_bytes(8));
// Use your appId and serverSecret
$appId = 12345;
$serverSecret = "9193cc662a4c0ec135ec71fb57194b38";
$timestamp = time();
$signature = GenerateSignature($appId, $signatureNonce, $serverSecret, $timestamp);
echo $signature;
?>

const crypto = require('crypto'); 
//Signature=md5(AppId + SignatureNonce + ServerSecret + Timestamp)
function GenerateUASignature(appId, signatureNonce, serverSecret, timeStamp){
    const hash = crypto.createHash('md5'); // Specifies the use of the MD5 algorithm in hash functions
    var str = appId + signatureNonce + serverSecret + timeStamp;
    hash.update(str);
    // hash.digest('hex') indicates that the output format is hexadecimal
    return hash.digest('hex');
}

var signatureNonce = crypto.randomBytes(8).toString('hex');
// Use your appId and serverSecret
var appId = 12345;
var serverSecret = "9193cc662a4c0ec135ec71fb57194b38";
var timeStamp = Math.round(Date.now()/1000);
console.log(GenerateUASignature(appId, signatureNonce, serverSecret, timeStamp));