asp.net core 腾讯验证码的接入示例代码

来源:脚本之家  责任编辑:小易  

Intro

之前使用的验证码服务是用的极验验证,而且是比较旧的,好久之前接入的,而且验证码服务依赖 Session,有点不太灵活,后来发现腾讯也有验证码服务,而且支持小程序,并且是唯一支持小程序的验证码。。(垄断么。。)

而且相比之下,腾讯验证码不需要依赖 Session,集成起来也比较方便,于是就用了腾讯验证码,详细参考:https://007.qq.com/product.html?ADTAG=index.block

验证流程

服务器端接入

using System.ComponentModel.DataAnnotations;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using Newtonsoft.Json;
using WeihanLi.Extensions;

namespace ActivityReservation.Common
{
  public class TencentCaptchaOptions
  {
    /// <summary>
    /// 客户端AppId
    /// </summary>
    [Required]
    public string AppId { get; set; }

    /// <summary>
    /// App Secret Key
    /// </summary>
    [Required]
    public string AppSecret { get; set; }
  }

  public class TencentCaptchaRequest
  {
    /// <summary>
    /// 验证码客户端验证回调的票据
    /// </summary>
    public string Ticket { get; set; }

    /// <summary>
    /// 验证码客户端验证回调的随机串
    /// </summary>
    public string Nonce { get; set; }

    /// <summary>
    /// 提交验证的用户的IP地址(eg: 10.127.10.2)
    /// </summary>
    public string UserIP { get; set; }
  }

  public class TencentCaptchaHelper
  {
    private class TencentCaptchaResponse
    {
      /// <summary>
      /// 1:验证成功,0:验证失败,100:AppSecretKey参数校验错误
      /// </summary>
      [JsonProperty("response")]
      public int Code { get; set; }

      /// <summary>
      /// 恶意等级 [0, 100]
      /// </summary>
      [JsonProperty("evil_level")]
      public string EvilLevel { get; set; }

      /// <summary>
      /// 错误信息
      /// </summary>
      [JsonProperty("err_msg")]
      public string ErrorMsg { get; set; }
    }

    private const string TencentCaptchaVerifyUrl = "https://ssl.captcha.qq.com/ticket/verify";
    private readonly TencentCaptchaOptions _captchaOptions;
    private readonly ILogger _logger;
    private readonly HttpClient _httpClient;

    public TencentCaptchaHelper(
      IOptions<TencentCaptchaOptions> option,
      ILogger<TencentCaptchaHelper> logger,
      HttpClient httpClient)
    {
      _captchaOptions = option.Value;
      _logger = logger;
      _httpClient = httpClient;
    }

    public async Task<bool> IsValidRequestAsync(TencentCaptchaRequest request)
    {
      // 参考文档:https://007.qq.com/captcha/#/gettingStart
      var response = await _httpClient.GetAsync(
        $"{TencentCaptchaVerifyUrl}?aid={_captchaOptions.AppId}&AppSecretKey={_captchaOptions.AppSecret}&Ticket={request.Ticket}&Randstr={request.Nonce}&UserIP={request.UserIP}");
      var responseText = await response.Content.ReadAsStringAsync();
      if (responseText.IsNotNullOrEmpty())
      {
        _logger.Debug($"Tencent captcha verify response:{responseText}");
        var result = responseText.JsonToType<TencentCaptchaResponse>();
        if (result.Code == 1)
        {
          return true;
        }
      }
      return false;
    }
  }
}

Startup 配置:

services.AddHttpClient<TencentCaptchaHelper>(client => client.Timeout = TimeSpan.FromSeconds(3))
  .ConfigurePrimaryHttpMessageHandler(() => new NoProxyHttpClientHandler());
services.AddTencentCaptchaHelper(options =>
{
  options.AppId = Configuration["Tencent:Captcha:AppId"];
  options.AppSecret = Configuration["Tencent:Captcha:AppSecret"];
});

前端接入

前端接入这里不作多介绍了,接入方式多种多样,具体可以参考官方文档:https://cloud.tencent.com/document/product/1110/36841

下面的代码是 angular spa 在前端接入的核心代码

 private loadCaptcha(): void {
  var tCaptcha = document.getElementById("tCaptcha");
  if (tCaptcha) {
   this.InitCaptcha();
   return;
  }
  let script = <any>document.createElement('script');
  script.id = "tCaptcha";
  script.type = 'text/javascript';
  script.src = "https://ssl.captcha.qq.com/TCaptcha.js"
  if (script.readyState) { //IE
   script.onreadystatechange = () => {
    if (script.readyState === "loaded" || script.readyState === "complete") {
     this.InitCaptcha();
    }
   };
  } else { //Others
   script.onload = () => {
    this.InitCaptcha();
   };
  }
  document.getElementsByTagName('body')[0].appendChild(script);
 }

 private InitCaptcha(): void {
  let captchaDom = document.getElementById('TencentCaptcha1');
  if (!captchaDom) {
   return;
  }
  this.tencentRecaptcha = new TencentCaptcha(
   captchaDom, appId, (res) => {
    this.captchaValid = false;
    console.log(res);
    // res(用户主动关闭验证码)= {ret: 2, ticket: null}
    // res(验证成功) = {ret: 0, ticket: "String", randstr: "String"}
    if (res.ret === 0) {
     this.captchaInfo.nonce = res.randstr;
     this.captchaInfo.ticket = res.ticket;
     this.captchaValid = true;
     this.tencentRecaptcha.destroy();

     let button = <HTMLElement>document.getElementById("btnSubmit");
     button.click();
    }
   }
  );
  console.log(`captcha inited`);
  this.tencentRecaptcha.show();
 }

使用效果:

老版网站接入效果:

Reference

https://github.com/WeihanLi/ActivityReservation
https://reservation.weihanli.xyz/Home/Reservate
https://reservation-client.weihanli.xyz/reservation/new
https://cloud.tencent.com/document/product/1110/36841

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

您可能感兴趣的文章:


  • 本文相关:
  • asp.net core使用skiasharp实现验证码的示例代码
  • 利用asp.net回调机制实现进度条
  • c# .net 生成图片验证码的代码
  • .net调用jscript脚本及js url加密解密
  • 详解asp.net验证码的生成方法
  • .net获取当前路径的方法汇总
  • asp.net mvc4 htmlhelper扩展类,实现分页功能
  • jquery+ajax用户登录功能的实现
  • asp.net 页面之间传递参数方法汇总
  • asp.net mvc中为dropdownlistfor设置选中项的方法
  • asp.net使用npoi读取excel模板并导出下载详解
  • 免责声明 - 关于我们 - 联系我们 - 广告联系 - 友情链接 - 帮助中心 - 频道导航
    Copyright © 2017 www.zgxue.com All Rights Reserved