Asp.Net Core 企业微信静默授权的实现

企业微信接口文档

1. 构造授权网页链接

2.回调获取到 Code 通过code+access_token去 请求用户信息

3. 获取access_token

调试准备工作 -->内网穿透+域名 推荐向日葵有免费的,免费的开发测试够用了

域名的配置成可信用

上代码 Demo下载

[ApiController]
  [Route("api/[controller]")]
  public class Auth2Controller : Controllerbase
  {

    private readonly string _agentId = "1000002";
    private readonly string _secret = "Y3f8ESBIBJoC8M_FPHOlpvmghS_Nn2ceFePRVZjw9_E";
    private readonly string _corpId = "wwbf72a7a059eac0f8";
    /// 

    /// 授权地址
    /// 
    private readonly string _auth2url = "https://open.weixin.qq.com/connect/oauth2/authorize";
    /// 

    /// 授权回调地址
    /// 
    private readonly string _callbackurl = "http:/      
      string access_token = await GetAccessToken();
      string url = $"{_getuserurl}?access_token={access_token}&code=[code]";
      HttpResponseMessage response = await _clientFactory.CreateClient().GetAsync(url);
      if (response.StatusCode == System.Net.HttpStatusCode.OK)
      {
 using (var responseStream = await response.Content.ReadAsStreamAsync())
 {
   var userinfo = JsonConvert.DeserializeObject(new StreamReader(responseStream).ReadToEnd());
   int errcode = userinfo.errcode;
   if (errcode == 0)
   {
     //企业成员
     string UserId = userinfo.UserId;
     //外部成员
     string OpenId = userinfo.OpenId;
     
     if (UserId==null)
     {
_memoryCache.Set("UserId", OpenId);
     }
     else
     {
_memoryCache.Set("UserId", UserId);
     }
   }
   else
   {
     _logger.LogError($"getuserinfo请求错误:{userinfo.errmsg}");
     return Ok();
   }
 }
      }      
      return Redirect($"{System.Web.HttpUtility.UrlDecode(state)}?UserId={_memoryCache.Get("UserId")}");
    }
    public async Task GetAccessToken()
    {
      if (_memoryCache.Get("AccessToken") == null)
      {
 string url = $"{_gettokenurl}?corpid={_corpId}&corpsecret={_secret}";
 HttpResponseMessage response = await _clientFactory.CreateClient().GetAsync(url);
 if (response.StatusCode == System.Net.HttpStatusCode.OK)
 {
   using (var responseStream = await response.Content.ReadAsStreamAsync())
   {
     var access_token_result = JsonConvert.DeserializeObject(new StreamReader(responseStream).ReadToEnd());
     int errcode = access_token_result.errcode;
     if (errcode == 0)
     {
string access_token = access_token_result.access_token;
int expires_in = access_token_result.expires_in;
_memoryCache.Set("AccessToken", access_token, DateTimeOffset.Now.AddSeconds(expires_in - 10));
     }
     else
     {
_logger.LogError($"access_token请求错误:{access_token_result.errmsg }");
     }
   }

 }
      }
      return _memoryCache.Get("AccessToken");
    }
  }

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