文章目錄

• 前言
• • 1.cpolar簡介
  • 2.cpolar功能
• 一、無公網IP異地遠程連接內網群暉NAS【內網穿透】
• • 1.注冊cpolar賬號
  • 2.下載cpolar客戶端進行內網穿透
  • 1.3 進行釘釘回調事件的監聽測試
  • 1.4 進行釘釘回調事件的監聽的源碼解析如下
  • • 1.4.1 控制器代碼
    • 1.4.2 相關加解密代碼

---

前言

1.cpolar簡介

cpolar是一款擁有遠程控制和內網穿透功能的軟件。而且還可以監控端口的HTTP請求，利用實時的cpolar Web UI開發者工具，讓您調試代碼更容易。您可以監聽所有隧道上的HTTP消息包，分析消息包的結構內容，找出問題點。還可以單擊重放（Replay）按鈕，重新發送該HTTP信令請求。

2.cpolar功能

1、個人使用場景：

• 遠程桌面訪問公司電腦
• 遠程方面家中電腦
• 搭建私人Web站點

2、中小企業遠程辦公場景：

• 遠程桌面（個人或公司使用）
• 遠程訪問文件共享服務器（中小企業使用）
• 遠程訪問公司內網財務系統、進銷存系統、ERP系統（小中企業使用）

3、游戲玩家使用場景：

• 搭建個人游戲私服

4、群暉NAS（個人網絡存儲服務器）用戶使用

• 遠程訪問家中的NAS文件服務器Web管理界面
• 遠程文件共享服務
• 遠程用手機看視頻（通過手機或PC遠程訪問家中的視頻文件庫，觀看小姐姐）
• 為啥要用遠程，因為NAS服務器通常也是BT迅雷下載服務器，小姐姐或電影都存在這上面。

5、開發人員使用場景：

• 搭建Web站點，用于測試，用于給客戶演示場景
• 聯調公網API服務，例如遠程調試支付寶接口
• 聯調開發微信公眾號，小程序接口
• 遠程訪問數據庫
• 搭建私有git源代碼倉庫
• 搭建私有CI服務器
• 搭建私有SVN源代碼服務器
• 遠程SSH服務器家中的服務器，或者公司的服務器
• 遠程使用vs code編輯代碼

6、批量商業使用場景：

• 開發智能終端的用戶，希望在他們開發的每個終端上，都安裝cpolar，用于可以隨時ssh遠程訪問的能力。例如，初期100臺設備上安裝（試生產），成功后，再部署到1-4萬臺設備上。
• 企業用戶，希望在公司的每臺電腦上，都配置遠程桌面功能，訪問疫情期間，遠程辦公方便。
• 有一個店家，有5個店，他是老板，但他并不希望每次都跑過去查看電腦上的財務數據。可以安裝cpolar到這5個店的電腦中，他只要在家中，遠程訪問即可。
• 私有云服務，企業希望打造一套自己的內網穿透系統，獨立搭建一套私有云服務。

一、無公網IP異地遠程連接內網群暉NAS【內網穿透】

1.注冊cpolar賬號

官網鏈接：https://i.cpolar.com/m/4VfC

進入cpolar官網，我們先點擊右上角的免費注冊，使用郵箱注冊一個賬號，我們后面會需要用到。

注冊號之后就可以下載客戶端了

2.下載cpolar客戶端進行內網穿透

下載cpolar客戶端進行內網穿透點擊上方的下載，下載windows版本的cpolar

下載完成后解壓壓縮包，并雙擊安裝包一路點擊next默認安裝即可。

cpolar authtoken <YOUR_AUTH_TOKEN> cpolar http 5000

執行成功界面如下

訪問網址：https://458ed76c.vip.cpolar.cn/swagger/index.html

內網swagger映射成功

1.3 進行釘釘回調事件的監聽測試

進入釘釘后臺管理注冊事件訂閱

進行保存后端斷點收到釘釘發過來信息，支持內網應用程序和釘釘已經進行互通了

1.4 進行釘釘回調事件的監聽的源碼解析如下

1.4.1 控制器代碼

using Microsoft.AspNetCore.Authorization; using Microsoft.AspNetCore.Mvc; using Newtonsoft.Json; using NSwag.Annotations; using System.Collections; using YG.Monomer.Framework.Controllers.Other_Manage.DingDing; using YG.Monomer.Framework.Filters.格式化返回結果;namespace YG.Monomer.Framework.Controllers.Other_Manage {[Route("/Other_Manage/[controller]/[action]")][OpenApiTag("第三方回調-釘釘事件監聽")]public class DDCallBackController : BaseApiController{private readonly IConfiguration Configuration;/// <summary>/// 日志注入/// </summary>/// <param name="loggerFactory"></param>public DDCallBackController(IConfiguration configuration){Configuration = configuration;}[HttpGet][AllowAnonymous][NoFormatResponse]public string ReadConfig(){return Configuration["DingDing:Token"];}/// <summary>/// 釘釘注冊的回調地址/// </summary>/// <param name="signature"></param>/// <param name="timestamp"></param>/// <param name="nonce"></param>/// <param name="body"></param>/// <returns></returns>[HttpPost][AllowAnonymous][NoFormatResponse]public dynamic CallBack(string signature, string timestamp, string nonce, PostBody body){//接收encrypt參數string encryptStr = body.encrypt.Replace("{\"encrypt\":\"", "").Replace("\"}", "");//注冊時填寫的token、aes_key、suitekeystring token = Configuration["DingDing:Token"];string aes_key = Configuration["DingDing:AesKey"];string suitekey = Configuration["DingDing:Suitekey"];#region 驗證回調的urlDingTalkCrypt dingTalk = new DingTalkCrypt(token, aes_key, suitekey);string sEchoStr = "";dingTalk.VerifyURL(signature, timestamp, nonce, encryptStr, ref sEchoStr);#endregion#region 解密接受信息，進行事件處理string plainText = "";dingTalk.DecryptMsg(signature, timestamp, nonce, encryptStr, ref plainText);Hashtable tb = (Hashtable)JsonConvert.DeserializeObject(plainText, typeof(Hashtable))!;string eventType = tb["EventType"].ToString()!;//string processCode = tb["processCode"] == null ? null : tb["processCode"].ToString();//任務碼string res = "success";switch (eventType){case "bpms_instance_change"://審批實例改變，執行代碼#region 審批實例改變，執行代碼//if (processCode == Configuration["PurProcessCode"])//{// _purdemitem.AddPurDem(_dDHelper.GetProcessInstance(tb["processInstanceId"].ToString()));//}#endregionbreak;default:break;}timestamp = Convert.ToInt64((DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0)).TotalSeconds).ToString();string encrypt = "";string signature2 = "";dingTalk = new DingTalkCrypt(token, aes_key, suitekey);//返回成功信息dingTalk.EncryptMsg(res, timestamp, nonce, ref encrypt, ref signature2);Hashtable jsonMap = new Hashtable{{"msg_signature", signature2},{"encrypt", encrypt},{"timeStamp", timestamp},{"nonce", nonce}};return JsonConvert.SerializeObject(jsonMap);#endregion}}/// <summary>/// 釘釘解密消息體/// </summary>public class PostBody{/// <summary>/// 密文/// </summary>public string? encrypt { get; set; }} }

1.4.2 相關加解密代碼

AESHepler.cs

using System.Net; using System.Security.Cryptography; using System.Text; namespace YG.Monomer.Framework.Controllers.Other_Manage.DingDing {/// <summary>/// 釘釘加解密庫/// </summary>public class AESHepler{/// <summary>/// 加密/// </summary>/// <param name="input">原文</param>/// <param name="aesKey">AES密鑰</param>/// <param name="corpid">企業CorpId</param>/// <returns></returns>public static string AESEncrypt(string input, string aesKey, string corpid){byte[] Key;Key = Convert.FromBase64String(aesKey + "=");byte[] Iv = new byte[16];Array.Copy(Key, Iv, 16);string Randcode = CreateRandCode(16);byte[] bRand = Encoding.UTF8.GetBytes(Randcode);byte[] bCorpid = Encoding.UTF8.GetBytes(corpid);byte[] btmpMsg = Encoding.UTF8.GetBytes(input);byte[] bMsgLen = BitConverter.GetBytes(HostToNetworkOrder(btmpMsg.Length));byte[] bMsg = new byte[bRand.Length + bMsgLen.Length + bCorpid.Length + btmpMsg.Length];Array.Copy(bRand, bMsg, bRand.Length);Array.Copy(bMsgLen, 0, bMsg, bRand.Length, bMsgLen.Length);Array.Copy(btmpMsg, 0, bMsg, bRand.Length + bMsgLen.Length, btmpMsg.Length);Array.Copy(bCorpid, 0, bMsg, bRand.Length + bMsgLen.Length + btmpMsg.Length, bCorpid.Length);return AESEncrypt(bMsg, Key, Iv);}/// <summary>/// 解密/// </summary>/// <param name="input">密文</param>/// <param name="aesKey">AES密鑰</param>/// <param name="corpId"></param>/// <returns></returns>public static string AESDecrypt(string input, string aesKey, ref string corpId){byte[] Key;Key = Convert.FromBase64String(aesKey + "=");byte[] Iv = new byte[16];Array.Copy(Key, Iv, 16);byte[] btmpMsg = null;using (var aesAlg = Aes.Create()){aesAlg.KeySize = 256;aesAlg.BlockSize = 128;aesAlg.Padding = PaddingMode.None;aesAlg.Mode = CipherMode.CBC;using (var decryptor = aesAlg.CreateDecryptor(Key, Iv)){using (var ms = new MemoryStream()){using (var cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Write)){byte[] xXml = Convert.FromBase64String(input);byte[] msg = new byte[xXml.Length + 32 - xXml.Length % 32];Array.Copy(xXml, msg, xXml.Length);cs.Write(xXml, 0, xXml.Length);}btmpMsg = decode2(ms.ToArray());}}}int len = BitConverter.ToInt32(btmpMsg, 16);len = IPAddress.NetworkToHostOrder(len);byte[] bMsg = new byte[len];byte[] bCorpid = new byte[btmpMsg.Length - 20 - len];Array.Copy(btmpMsg, 20, bMsg, 0, len);Array.Copy(btmpMsg, 20 + len, bCorpid, 0, btmpMsg.Length - 20 - len);string oriMsg = Encoding.UTF8.GetString(bMsg);corpId = Encoding.UTF8.GetString(bCorpid);return oriMsg;}/// <summary>/// 加密算法/// </summary>/// <param name="input">原文</param>/// <param name="key">密鑰</param>/// <param name="iv">IV偏移量</param>/// <returns></returns>public static string AESEncrypt(byte[] input, byte[] key, byte[] iv){using (var aesAlg = Aes.Create()){aesAlg.KeySize = 256;aesAlg.BlockSize = 128;aesAlg.Padding = PaddingMode.None;aesAlg.Mode = CipherMode.CBC;byte[] msg = new byte[input.Length + 32 - input.Length % 32];Array.Copy(input, msg, input.Length);byte[] pad = KCS7Encoder(input.Length);Array.Copy(pad, 0, msg, input.Length, pad.Length);byte[] xBuff = null;using (var encryptor = aesAlg.CreateEncryptor(key, iv)){using (var msEncrypt = new MemoryStream()){using (var ms = new MemoryStream()){using (var cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write)){cs.Write(msg, 0, msg.Length);}xBuff = ms.ToArray();}return Convert.ToBase64String(xBuff);}}}}private static byte[] decode2(byte[] decrypted){int pad = (int)decrypted[decrypted.Length - 1];if (pad < 1 || pad > 32){pad = 0;}byte[] res = new byte[decrypted.Length - pad];Array.Copy(decrypted, 0, res, 0, decrypted.Length - pad);return res;}/// <summary>/// /// </summary>/// <param name="codeLen"></param>/// <returns></returns>public static string CreateRandCode(int codeLen){string codeSerial = "2,3,4,5,6,7,a,c,d,e,f,h,i,j,k,m,n,p,r,s,t,A,C,D,E,F,G,H,J,K,M,N,P,Q,R,S,U,V,W,X,Y,Z";if (codeLen == 0){codeLen = 16;}string[] arr = codeSerial.Split(',');string code = "";int randValue = -1;Random rand = new Random(unchecked((int)DateTime.Now.Ticks));for (int i = 0; i < codeLen; i++){randValue = rand.Next(0, arr.Length - 1);code += arr[randValue];}return code;}/// <summary>/// /// </summary>/// <param name="inval"></param>/// <returns></returns>public static UInt32 HostToNetworkOrder(UInt32 inval){UInt32 outval = 0;for (int i = 0; i < 4; i++)outval = (outval << 8) + ((inval >> (i * 8)) & 255);return outval;}/// <summary>/// /// </summary>/// <param name="inval"></param>/// <returns></returns>public static Int32 HostToNetworkOrder(Int32 inval){Int32 outval = 0;for (int i = 0; i < 4; i++)outval = (outval << 8) + ((inval >> (i * 8)) & 255);return outval;}private static byte[] KCS7Encoder(int text_length){int block_size = 32;// 計算需要填充的位數int amount_to_pad = block_size - (text_length % block_size);if (amount_to_pad == 0){amount_to_pad = block_size;}// 獲得補位所用的字符char pad_chr = chr(amount_to_pad);string tmp = "";for (int index = 0; index < amount_to_pad; index++){tmp += pad_chr;}return Encoding.UTF8.GetBytes(tmp);}static char chr(int a){byte target = (byte)(a & 0xFF);return (char)target;}} }

Cryptography.cs

using System.Text;namespace YG.Monomer.Framework.Controllers.Other_Manage.DingDing {/// <summary>/// /// </summary>public class Cryptography{/// <summary>/// /// </summary>/// <param name="inval"></param>/// <returns></returns>public static UInt32 HostToNetworkOrder(UInt32 inval){UInt32 outval = 0;for (int i = 0; i < 4; i++)outval = (outval << 8) + ((inval >> (i * 8)) & 255);return outval;}/// <summary>/// /// </summary>/// <param name="inval"></param>/// <returns></returns>public static Int32 HostToNetworkOrder(Int32 inval){Int32 outval = 0;for (int i = 0; i < 4; i++)outval = (outval << 8) + ((inval >> (i * 8)) & 255);return outval;}/// <summary>/// 解密方法/// </summary>/// <param name="Input">密文</param>/// <param name="EncodingAESKey"></param>/// <param name="corpid"></param>/// <returns></returns>public static string AES_decrypt(String Input, string EncodingAESKey, ref string corpid){//擴展改造成Core版AES解密算法return AESHepler.AESDecrypt(Input, EncodingAESKey, ref corpid);}/// <summary>/// 加密方法/// </summary>/// <param name="Input"></param>/// <param name="EncodingAESKey"></param>/// <param name="corpid"></param>/// <returns></returns>public static String AES_encrypt(String Input, string EncodingAESKey, string corpid){byte[] Key;Key = Convert.FromBase64String(EncodingAESKey + "=");byte[] Iv = new byte[16];Array.Copy(Key, Iv, 16);string Randcode = CreateRandCode(16);byte[] bRand = Encoding.UTF8.GetBytes(Randcode);byte[] bCorpid = Encoding.UTF8.GetBytes(corpid);byte[] btmpMsg = Encoding.UTF8.GetBytes(Input);byte[] bMsgLen = BitConverter.GetBytes(HostToNetworkOrder(btmpMsg.Length));byte[] bMsg = new byte[bRand.Length + bMsgLen.Length + bCorpid.Length + btmpMsg.Length];Array.Copy(bRand, bMsg, bRand.Length);Array.Copy(bMsgLen, 0, bMsg, bRand.Length, bMsgLen.Length);Array.Copy(btmpMsg, 0, bMsg, bRand.Length + bMsgLen.Length, btmpMsg.Length);Array.Copy(bCorpid, 0, bMsg, bRand.Length + bMsgLen.Length + btmpMsg.Length, bCorpid.Length);return AES_encrypt(bMsg, Iv, Key);}private static string CreateRandCode(int codeLen){string codeSerial = "2,3,4,5,6,7,a,c,d,e,f,h,i,j,k,m,n,p,r,s,t,A,C,D,E,F,G,H,J,K,M,N,P,Q,R,S,U,V,W,X,Y,Z";if (codeLen == 0){codeLen = 16;}string[] arr = codeSerial.Split(',');string code = "";int randValue = -1;Random rand = new Random(unchecked((int)DateTime.Now.Ticks));for (int i = 0; i < codeLen; i++){randValue = rand.Next(0, arr.Length - 1);code += arr[randValue];}return code;}private static String AES_encrypt(byte[] Input, byte[] Iv, byte[] Key){//擴展改造成Core版AES加密算法return AESHepler.AESEncrypt(Input, Key, Iv);}private static byte[] KCS7Encoder(int text_length){int block_size = 32;// 計算需要填充的位數int amount_to_pad = block_size - (text_length % block_size);if (amount_to_pad == 0){amount_to_pad = block_size;}// 獲得補位所用的字符char pad_chr = chr(amount_to_pad);string tmp = "";for (int index = 0; index < amount_to_pad; index++){tmp += pad_chr;}return Encoding.UTF8.GetBytes(tmp);}/*** 將數字轉化成ASCII碼對應的字符，用于對明文進行補碼* * @param a 需要轉化的數字* @return 轉化得到的字符*/static char chr(int a){byte target = (byte)(a & 0xFF);return (char)target;}private static byte[] decode2(byte[] decrypted){int pad = (int)decrypted[decrypted.Length - 1];if (pad < 1 || pad > 32){pad = 0;}byte[] res = new byte[decrypted.Length - pad];Array.Copy(decrypted, 0, res, 0, decrypted.Length - pad);return res;}} }

DingTalkCrypt.cs

using System.Collections; using System.Security.Cryptography; using System.Text; namespace YG.Monomer.Framework.Controllers.Other_Manage.DingDing {/// <summary>/// /// </summary>public class DingTalkCrypt{private string m_sEncodingAESKey;private string m_sToken;private string m_sSuiteKey;/**ask getPaddingBytes key固定長度**/private static int AES_ENCODE_KEY_LENGTH = 43;/**加密隨機字符串字節長度**///private static int RANDOM_LENGTH = 16;enum DingTalkCryptErrorCode{/**成功**/SUCCESS = 0,/**加密明文文本非法**/ENCRYPTION_PLAINTEXT_ILLEGAL = 900001,/**加密時間戳參數非法**/ENCRYPTION_TIMESTAMP_ILLEGAL = 900002,/**加密隨機字符串參數非法**/ENCRYPTION_NONCE_ILLEGAL = 900003,/**不合法的aeskey**/AES_KEY_ILLEGAL = 900004,/**簽名不匹配**/SIGNATURE_NOT_MATCH = 900005,/**計算簽名錯誤**/COMPUTE_SIGNATURE_ERROR = 900006,/**計算加密文字錯誤**/COMPUTE_ENCRYPT_TEXT_ERROR = 900007,/**計算解密文字錯誤**/COMPUTE_DECRYPT_TEXT_ERROR = 900008,/**計算解密文字長度不匹配**/COMPUTE_DECRYPT_TEXT_LENGTH_ERROR = 900009,/**計算解密文字suiteKey不匹配**/COMPUTE_DECRYPT_TEXT_SuiteKey_ERROR = 900010,};/// <summary>/// 構造函數/// </summary>/// <param name="token">釘釘開放平臺上，開發者設置的token</param>/// <param name="encodingAesKey">釘釘開放臺上，開發者設置的EncodingAESKey</param>/// <param name="suiteKey">釘釘開放平臺上，開發者設置的suiteKey</param>public DingTalkCrypt(string token, string encodingAesKey, string suiteKey){m_sToken = token;m_sSuiteKey = suiteKey;m_sEncodingAESKey = encodingAesKey;}/// <summary>/// 將消息加密,返回加密后字符串/// </summary>/// <param name="sReplyMsg">傳遞的消息體明文</param>/// <param name="sTimeStamp">時間戳</param>/// <param name="sNonce">隨機字符串</param>/// <param name="sEncryptMsg">加密后的消息信息</param>/// <param name="signature"></param>/// <returns>成功0，失敗返回對應的錯誤碼</returns>public int EncryptMsg(string sReplyMsg, string sTimeStamp, string sNonce, ref string sEncryptMsg, ref string signature){if (string.IsNullOrEmpty(sReplyMsg))return (int)DingTalkCryptErrorCode.ENCRYPTION_PLAINTEXT_ILLEGAL;if (string.IsNullOrEmpty(sTimeStamp))return (int)DingTalkCryptErrorCode.ENCRYPTION_TIMESTAMP_ILLEGAL;if (string.IsNullOrEmpty(sNonce))return (int)DingTalkCryptErrorCode.ENCRYPTION_NONCE_ILLEGAL;if (m_sEncodingAESKey.Length != AES_ENCODE_KEY_LENGTH)return (int)DingTalkCryptErrorCode.AES_KEY_ILLEGAL;string raw = "";try{raw = Cryptography.AES_encrypt(sReplyMsg, m_sEncodingAESKey, m_sSuiteKey);}catch (Exception){return (int)DingTalkCryptErrorCode.AES_KEY_ILLEGAL;}string msgSigature = "";int ret = GenerateSignature(m_sToken, sTimeStamp, sNonce, raw, ref msgSigature);sEncryptMsg = raw;signature = msgSigature;return ret;}/// <summary>/// 密文解密/// </summary>/// <param name="sMsgSignature">簽名串</param>/// <param name="sTimeStamp">時間戳</param>/// <param name="sNonce">隨機串</param>/// <param name="sPostData">密文</param>/// <param name="sMsg">解密后的原文，當return返回0時有效</param>/// <returns>成功0，失敗返回對應的錯誤碼</returns>public int DecryptMsg(string sMsgSignature, string sTimeStamp, string sNonce, string sPostData, ref string sMsg){if (m_sEncodingAESKey.Length != AES_ENCODE_KEY_LENGTH)return (int)DingTalkCryptErrorCode.AES_KEY_ILLEGAL;string sEncryptMsg = sPostData;int ret = VerifySignature(m_sToken, sTimeStamp, sNonce, sEncryptMsg, sMsgSignature);string cpid = "";try{sMsg = Cryptography.AES_decrypt(sEncryptMsg, m_sEncodingAESKey, ref cpid);}catch (FormatException){sMsg = "";return (int)DingTalkCryptErrorCode.COMPUTE_DECRYPT_TEXT_SuiteKey_ERROR;}catch (Exception){sMsg = "";return (int)DingTalkCryptErrorCode.COMPUTE_DECRYPT_TEXT_SuiteKey_ERROR;}if (cpid != m_sSuiteKey)return (int)DingTalkCryptErrorCode.COMPUTE_DECRYPT_TEXT_SuiteKey_ERROR;return ret;}/// <summary>/// 生成簽名/// </summary>/// <param name="sToken"></param>/// <param name="sTimeStamp"></param>/// <param name="sNonce"></param>/// <param name="sMsgEncrypt"></param>/// <param name="sMsgSignature"></param>/// <returns></returns>public static int GenerateSignature(string sToken, string sTimeStamp, string sNonce, string sMsgEncrypt, ref string sMsgSignature){ArrayList AL = new ArrayList();AL.Add(sToken);AL.Add(sTimeStamp);AL.Add(sNonce);AL.Add(sMsgEncrypt);AL.Sort(new DictionarySort());string raw = "";for (int i = 0; i < AL.Count; ++i){raw += AL[i];}SHA1 sha;ASCIIEncoding enc;string hash = "";try{sha = SHA1.Create();enc = new ASCIIEncoding();byte[] dataToHash = enc.GetBytes(raw);byte[] dataHashed = sha.ComputeHash(dataToHash);hash = BitConverter.ToString(dataHashed).Replace("-", "");hash = hash.ToLower();}catch (Exception){return (int)DingTalkCryptErrorCode.COMPUTE_SIGNATURE_ERROR;}sMsgSignature = hash;return 0;}/// <summary>/// 驗證簽名/// </summary>/// <param name="sToken"></param>/// <param name="sTimeStamp"></param>/// <param name="sNonce"></param>/// <param name="sMsgEncrypt"></param>/// <param name="sSigture"></param>/// <returns></returns>private static int VerifySignature(string sToken, string sTimeStamp, string sNonce, string sMsgEncrypt, string sSigture){string hash = "";int ret = 0;ret = GenerateSignature(sToken, sTimeStamp, sNonce, sMsgEncrypt, ref hash);if (ret != 0)return ret;if (hash == sSigture)return 0;else{return (int)DingTalkCryptErrorCode.SIGNATURE_NOT_MATCH;}}/// <summary>/// 驗證URL/// </summary>/// <param name="sMsgSignature">簽名串，對應URL參數的msg_signature</param>/// <param name="sTimeStamp">時間戳，對應URL參數的timestamp</param>/// <param name="sNonce">隨機串，對應URL參數的nonce</param>/// <param name="sEchoStr">經過加密的消息體，對應URL參數的encrypt</param>/// <param name="sReplyEchoStr"></param>/// <returns></returns>public int VerifyURL(string sMsgSignature, string sTimeStamp, string sNonce, string sEchoStr, ref string sReplyEchoStr){int ret = 0;if (m_sEncodingAESKey.Length != 43){return (int)DingTalkCryptErrorCode.AES_KEY_ILLEGAL;}ret = VerifySignature(m_sToken, sTimeStamp, sNonce, sEchoStr, sMsgSignature);sReplyEchoStr = "";string cpid = "";try{sReplyEchoStr = Cryptography.AES_decrypt(sEchoStr, m_sEncodingAESKey, ref cpid); //m_sCorpID);}catch (Exception){sReplyEchoStr = "";return (int)DingTalkCryptErrorCode.COMPUTE_SIGNATURE_ERROR;}if (cpid != m_sSuiteKey){sReplyEchoStr = "";return (int)DingTalkCryptErrorCode.COMPUTE_DECRYPT_TEXT_SuiteKey_ERROR;}return ret;}/// <summary>/// 字典排序/// </summary>public class DictionarySort : System.Collections.IComparer{/// <summary>/// /// </summary>/// <param name="oLeft"></param>/// <param name="oRight"></param>/// <returns></returns>public int Compare(object oLeft, object oRight){string sLeft = oLeft as string;string sRight = oRight as string;int iLeftLength = sLeft.Length;int iRightLength = sRight.Length;int index = 0;while (index < iLeftLength && index < iRightLength){if (sLeft[index] < sRight[index])return -1;else if (sLeft[index] > sRight[index])return 1;elseindex++;}return iLeftLength - iRightLength;}}} }

DDHelper.cs 這邊是進行釘釘主業務的類

using AlibabaCloud.SDK.Dingtalkoauth2_1_0; using AlibabaCloud.OpenApiClient.Models; using AlibabaCloud.SDK.Dingtalkoauth2_1_0.Models; using Tea;namespace YG.Monomer.Framework.Controllers.Other_Manage.DingDing {/// <summary>/// 釘釘SDK相關方法/// </summary>public class DDHelper{readonly IConfiguration Configuration;/// <summary>/// 釘釘SDK構造函數/// </summary>/// <param name="configuration"></param>public DDHelper(IConfiguration configuration){Configuration = configuration;}/*** 使用 Token 初始化賬號Client* @return Client* @throws Exception*/public static Client CreateClient(){Config config = new Config();config.Protocol = "https";config.RegionId = "central";return new Client(config);}/// <summary>/// 獲取釘釘授權token，帶著就可以訪問任何接口了/// </summary>/// <returns></returns>public string? GetAccessToken(){Client client = CreateClient();GetAccessTokenRequest getAccessTokenRequest = new GetAccessTokenRequest{AppKey = Configuration["DingDing:AppKey"],AppSecret = Configuration["DingDing:AppSecret"],};try{return client.GetAccessToken(getAccessTokenRequest).Body.AccessToken;}catch (TeaException err){if (!AlibabaCloud.TeaUtil.Common.Empty(err.Code) && !AlibabaCloud.TeaUtil.Common.Empty(err.Message)){// err 中含有 code 和 message 屬性，可幫助開發定位問題}}catch (Exception _err){TeaException err = new TeaException(new Dictionary<string, object>{{ "message", _err.Message }});if (!AlibabaCloud.TeaUtil.Common.Empty(err.Code) && !AlibabaCloud.TeaUtil.Common.Empty(err.Message)){// err 中含有 code 和 message 屬性，可幫助開發定位問題}}return null;}} }

總結

以上是生活随笔為你收集整理的【愚公系列】2023年03月 .Net Core使用cpolar内网穿透功能实现钉钉回调事件的监听的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。