c#实现钉钉免登功能

钉钉提供的免登功能

如下

企业应用免登
ISV应用免登
微应用后台管理员免登
第三方WEB网站免登
第三方WEB网站扫码登录

这里要讲解的是4,5；即第三方Web网站免登：点击网站上登录页面的钉钉图标，显示二维码，然后扫码登录功能；
钉钉Web网站扫码登录文档

一.前期准备

第三方网站的网址
第三方网站logo的网址
操作：

创建要填写的一些相关信息。授权LOGO地址，建议就放你网站的logo好啦。

确定之后就会生成APPID和appSecret，先放着。appSecret后面拿取钉钉的用户信息会用到。

通过以上步骤得到:appId,appSecret ，后面会用到（必须值）

二.流程说明

1.流程图

2.流程文字说明

用户点击Web网站上钉钉图标,展示二维码
用户使用钉钉app，扫码授权
钉钉服务器往回调地址发送code和state
在回调地址的action中，由appid,appSecret获取accessToken
由3中的code和4中的accessToken获取持久授权码persistent_code
由accessToken和5中得到的persistent_code和openid获取用户授权的sns_token
再由6中的sns_token获取钉钉用户信息

详情请参考官方文档

三.编码实现

下面的代码因为项目需要除了免登以外，还有一些通讯录的操作,使用者自行选取
注：免登(appid,appsecret)获取的AccessToken与用CorpID和CorpSecret来换取AccessToken不同

1.后台操作代码

using EClaim.Common;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;namespace EClaim.Service.DingDingHelper
{public class DingDingHelper{//免登必需参数private static string appid = "";//免登必需参数private static string appsecret = "";//其他操作必需参数(例如：通讯录)private static string corpid = "";//其他操作必需参数(例如：通讯录)private static string corpsecret = "";//由corpid和corpsecret获取accessTokenpublic static AccessTokenResult GetAccessToken0(){string url = "https://oapi.dingtalk.com/gettoken?corpid="+corpid+"&corpsecret="+corpsecret;try{var response = HttpGet(url);//Log.LogMsg("DingDing_GetAccessToken0", DateTime.Now, response);var result = Newtonsoft.Json.JsonConvert.DeserializeObject<AccessTokenResult>(response);return result;}catch (Exception ex){//Log.LogMsg("DingDing_GetAccessToken0_Exception", DateTime.Now, ex.Message);throw new Exception(ex.Message);}}/// <summary>/// 获取钉钉开放应用的ACCESS_TOKEN(免登功能使用)/// </summary>/// <returns></returns>public static AccessTokenResult GetAccessToken(){string url = "https://oapi.dingtalk.com/sns/gettoken?appid=" + appid + "&appsecret=" + appsecret;try{var response = HttpGet(url);//Log.LogMsg("DingDing_GetAccessToken", DateTime.Now, response);var result = Newtonsoft.Json.JsonConvert.DeserializeObject<AccessTokenResult>(response);return result;}catch (Exception ex){//Log.LogMsg("DingDing_GetAccessToken_Exception", DateTime.Now, ex.Message);throw new Exception(ex.Message);}}/// <summary>/// 获取用户授权的持久授权码(免登功能使用)/// </summary>/// <param name="accessToken"></param>/// <param name="code"></param>/// <returns></returns>public static PersistentCodeResult GetPersistentCode(string accessToken, string code){string url = "https://oapi.dingtalk.com/sns/get_persistent_code?access_token=" + accessToken;string param = "{ \"tmp_auth_code\": \""+code+"\"}";try{//Log.LogMsg("进入HttpPost之前", DateTime.Now, "[url:"+url+"]--[param:"+param+"]");var response = HttpPost(url, param);//var response = PostHttp(url, param, Encoding.GetEncoding("utf-8"));//Log.LogMsg("DingDing_GetPersistentCode", DateTime.Now, response);var result = Newtonsoft.Json.JsonConvert.DeserializeObject<PersistentCodeResult>(response);return result;}catch (Exception ex){//Log.LogMsg("DingDing_GetPersistentCode_Exception", DateTime.Now, ex.Message);throw new Exception(ex.Message);}}/// <summary>/// 获取用户授权的SNS_TOKEN(免登功能使用)/// </summary>/// <param name="accessToken"></param>/// <param name="openId"></param>/// <param name="persistentCode"></param>/// <returns></returns>public static Sns_tokenResult GetSnsToken(string accessToken, string openId, string persistentCode){string url = "https://oapi.dingtalk.com/sns/get_sns_token?access_token=" + accessToken;string param = "{\"openid\": \""+openId+"\",\"persistent_code\": \""+persistentCode+"\"}";try{var response = HttpPost(url, param);//Log.LogMsg("DingDing_GetSnsToken", DateTime.Now, response);var result = Newtonsoft.Json.JsonConvert.DeserializeObject<Sns_tokenResult>(response);return result;}catch (Exception ex){//Log.LogMsg("DingDing_GetSnsToken_Exception", DateTime.Now, ex.Message);throw new Exception(ex.Message);}}/// <summary>/// 获取用户授权的个人信息(免登功能使用)/// </summary>/// <param name="sns_token"></param>/// <returns></returns>public static UserInfoResult GetUserInfo(string sns_token){string url = "https://oapi.dingtalk.com/sns/getuserinfo?sns_token=" + sns_token;try{var response = HttpGet(url);//Log.LogMsg("DingDing_GetUserInfo", DateTime.Now, response);var result = Newtonsoft.Json.JsonConvert.DeserializeObject<UserInfoResult>(response);return result;}catch (Exception ex){//Log.LogMsg("DingDing_GetUserInfo_Exception", DateTime.Now, ex.Message);throw new Exception(ex.Message);}}/// <summary>/// 根据unionid获取userId/// </summary>/// <param name="accessToken"></param>/// <param name="unionid"></param>/// <returns></returns>public static UserIdResult GetUserIdByUnionId(string unionid){var accessToken = GetAccessToken0();string url = "https://oapi.dingtalk.com/user/getUseridByUnionid?access_token=" + accessToken.access_token + "&unionid=" + unionid;try{var response = HttpGet(url);//Log.LogMsg("DingDing_GetUserId", DateTime.Now, response);var result = Newtonsoft.Json.JsonConvert.DeserializeObject<UserIdResult>(response);return result;}catch (Exception ex){//Log.LogMsg("DingDing_GetUserId_Exception", DateTime.Now, ex.Message);throw new Exception(ex.Message);}}/// <summary>/// 获取成员详情/// </summary>/// <param name="accessToken"></param>/// <param name="userid"></param>/// <returns></returns>public static UserDetailResult GetUserDetail(string userid){var accessToken = GetAccessToken0();string url = "https://oapi.dingtalk.com/user/get?access_token="+ accessToken.access_token + "&userid="+userid;try{var response = HttpGet(url);//Log.LogMsg("DingDing_GetUserDetail", DateTime.Now, response);var result = Newtonsoft.Json.JsonConvert.DeserializeObject<UserDetailResult>(response);return result;}catch(Exception ex){//Log.LogMsg("DingDing_GetUserDetail_Exception", DateTime.Now, ex.Message);throw new Exception(ex.Message);}}#region 发送请求方法/// <summary>/// get方式发送请求/// </summary>/// <param name="url"></param>/// <returns></returns>public static string HttpGet(string url){HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);request.Method = "GET";request.ContentType = "text/html;charset=UTF-8";HttpWebResponse response = (HttpWebResponse)request.GetResponse();Stream myResponseStream = response.GetResponseStream();StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));string retString = myStreamReader.ReadToEnd();myStreamReader.Close();myResponseStream.Close();return retString;}public static string HttpPost(string url, string body){//ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);Encoding encoding = Encoding.UTF8;HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);request.Method = "POST";request.Accept = "text/html, application/xhtml+xml, */*";request.ContentType = "application/json";byte[] buffer = encoding.GetBytes(body);request.ContentLength = buffer.Length;request.GetRequestStream().Write(buffer, 0, buffer.Length);HttpWebResponse response = (HttpWebResponse)request.GetResponse();using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8)){return reader.ReadToEnd();}}#endregion}public class AccessTokenResult{public string access_token { get; set; }public int errcode { get; set; }public string errmsg { get; set; }}public class PersistentCodeResult{public int errcode { get; set; }public string errmsg { get; set; }public string openid { get; set; }public string persistent_code { get; set; }public string unionid { get; set; }}public class Sns_tokenResult{public int errcode { get; set; }public string errmsg { get; set; }public int expires_in { get; set; }public string sns_token { get; set; }}public class UserInfoResult{public int errcode { get; set; }public string errmsg { get; set; }public UserInfo user_info { get; set; }}public class UserInfo{public string maskedMobile { get; set; }public string nick { get; set; }public string openid { get; set; }public string unionid { get; set; }}public class UserIdResult{public int errcode { get; set; }public string errmsg { get; set; }public int contactType { get; set; }public string userid { get; set; }}public class UserDetailResult{public int errcode { get; set; }public string unionid { get; set; }public string openId { get; set; }public string roles { get; set; }public string remark { get; set; }public string userid { get; set; }public string isLeaderInDepts { get; set; }public bool isBoss { get; set; }public string hiredDate { get; set; }public bool isSenior { get; set; }public string tel { get; set; }public int[] department { get; set; }public string workPlace { get; set; }public string email { get; set; }public string orderInDepts { get; set; }public string mobile { get; set; }public string errmsg { get; set; }public bool active { get; set; }public string avatar { get; set; }public bool isAdmin { get; set; }public bool isHide { get; set; }public string jobnumber { get; set; }public string name { get; set; }public object extattr { get; set; }public string stateCode { get; set; }public string position { get; set; }}
}

2.前台代码实现

<p class="dingdinglogin" onclick="dingdingLogin();">钉钉扫码登录</p><script src="//g.alicdn.com/dingding/dinglogin/0.0.5/ddLogin.js"></script><script>var appid = "必填值";var redirect_uri = "必填值";var dingurl="https://oapi.dingtalk.com/connect/oauth2/sns_authorize?appid="+appid+"&response_type=code&scope=snsapi_login&state=STATE&redirect_uri="+redirect_uri;function dingdingLogin() {debugger;//$(".login-content-2").hide();//$("#login_container").show();var obj = DDLogin({id: "login_container",//这里需要你在自己的页面定义一个HTML标签并设置id，例如<div id="login_container"></div>或<span id="login_container"></span>goto: encodeURIComponent(dingurl),width: "365",height: "400",});var hanndleMessage = function (event) {var origin = event.origin;console.log("origin", event.origin);if (origin == "https://login.dingtalk.com") { //判断是否来自ddLogin扫码事件。var loginTmpCode = event.data; //拿到loginTmpCode后就可以在这里构造跳转链接进行跳转了console.log("loginTmpCode", loginTmpCode);window.location.href = dingurl+"&loginTmpCode=" + loginTmpCode;}};if (typeof window.addEventListener != 'undefined') {window.addEventListener('message', hanndleMessage, false);} else if (typeof window.attachEvent != 'undefined') {window.attachEvent('onmessage', hanndleMessage);}}</script>

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