Md5 校验

深碍√TFBOYSˉ_ 2024-04-07 15:25 31阅读 0赞

md5在线加密工具网站：[http://md5.chahuo.com/][http_md5.chahuo.com]

> 1.Controller 继承自 API 基类，从而调用 Md5 校验。

/// <summary>
        /// 人员上传位置定位
        /// </summary>
        [EnableCors(origins: "*", headers: "*", methods: "*")]
        [RoutePrefix("api/App/PersonMap")]
        public class PersonMapController : BaseApiController
        {
         
        ｝

> 2.Api 基类使用自定义注解 \[CustomActionFilter\]， 注解中包含Md5校验方法。

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.Http;
    using System.Web.Http.Cors;
    
    namespace YC.WebAPI.Controllers.BMS
    {
        
        /// <summary>
        /// API基类
        /// </summary>
        [CustomActionFilter]
        [EnableCors(origins: "*", headers: "*", methods: "*")]
        public class BaseApiController : ApiController
        {
        
    
        }
    }

> 3.\[CustomActionFilter\] 注解中包含Md5校验：  
> MD5信息摘要算法，一种被广泛使用的密码散列函数，可以产生出一个128位（16字节）的散列值（hash value），用于确保信息传输完整一致。  
> Md5 是将时间戳进行特定转换为一个字符串，

using HY.CommDataOpr;
    using Newtonsoft.Json;
    using System;
    using System.IO;
    using System.Linq;
    using System.Net;
    using System.Net.Http;
    using System.Security.Cryptography;
    using System.Text;
    using System.Web.Http.Controllers;
    using System.Web.Http.Filters;
    
    namespace YC.WebAPI.Controllers.BMS
    {
        
        /// <summary>
        /// 自定义方法属性,登录判断
        /// </summary>
        public class CustomActionFilterAttribute : ActionFilterAttribute
        {
        
            /// <summary>
            /// 重写方法执行前
            /// </summary>
            /// <param name="actionContext"></param>
            public override void OnActionExecuting(HttpActionContext actionContext)
            {
        
                var request = actionContext.Request;
                string accToken = "";
                string s = "";
                var tips = new TipsModel<string>();
                if (!(request.Headers.Contains("timeMd5")))
                {
        
                    tips.SetError("timeMd5丢失!");
                    tips.ReturnCode = "200";
                    actionContext.Response = new HttpResponseMessage(HttpStatusCode.NonAuthoritativeInformation) {
         Content = new StringContent(JsonConvert.SerializeObject(tips)) };
                    return;
                }
                if (!request.Headers.Contains("timestamp"))
                {
        
                    tips.SetError("timestamp丢失!");
                    tips.ReturnCode = "200";
                    actionContext.Response = new HttpResponseMessage(HttpStatusCode.NonAuthoritativeInformation) {
         Content = new StringContent(JsonConvert.SerializeObject(tips)) };
                    return;
                }
                accToken = request.Headers.GetValues("timeMd5").FirstOrDefault();
                //可以规定一个字符串作为密钥
                string timestamp = "240's CSDN" + request.Headers.GetValues("timestamp").FirstOrDefault();
                s = GetMD5Str(timestamp);
                if (accToken != s)
                {
        
                    tips.SetError("Md5校验错误!");
                    tips.ReturnCode = "200";
                    actionContext.Response = new HttpResponseMessage(HttpStatusCode.NonAuthoritativeInformation) {
         Content = new StringContent(JsonConvert.SerializeObject(tips)) };
                    return;
                }
            }
    
            /// <summary>
            /// MD5字符串
            /// </summary>
            /// <param name="paras">参数数组</param>
            /// <returns>MD5字符串</returns>
            public string GetMD5Str(params string[] paras)
            {
        
                string str = "";
                for (int i = 0; i < paras.Length; i++)
                {
        
                    str += paras[i];
                }
                byte[] buffer = MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(str));
                string md5Str = string.Empty;
                for (int i = 0; i < buffer.Length; i++)
                {
        
                    md5Str = md5Str + buffer[i].ToString("X2");
                }
                return md5Str;
            }
        }
    }

> 4.运行 WebApi 后调用接口如下：

![在这里插入图片描述][89c0e0a84df6487bae445366fc62895e.png]

[http_md5.chahuo.com]: http://md5.chahuo.com/
[89c0e0a84df6487bae445366fc62895e.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/07/61d9667e278e4812b885e01dbab74c66.png