temu客户端程序
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/*
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* MD5加密
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* 肖俊
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* 2013-6-7
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*/
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using System;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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namespace AllBase
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{
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public static class Md5Base
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{
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/// <summary>
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/// MD5加密
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/// </summary>
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/// <param name="instring"></param>
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/// <returns></returns>
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public static string GetMd5(string instring)
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{
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byte[] result = Encoding.UTF8.GetBytes(string.IsNullOrEmpty(instring)?"": instring.Trim());
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MD5 md5 = new MD5CryptoServiceProvider();
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byte[] output = md5.ComputeHash(result);
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return BitConverter.ToString(output).Replace("-", "");
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}
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/// <summary>
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/// MD5加密
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/// </summary>
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/// <param name="instring"></param>
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/// <returns></returns>
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//public static string GetMd5X16(string instring)
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//{
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// string temp = GetMd5(instring);
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// return temp.Substring(8, 16);
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//}
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/// <summary>
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/// MD5加密
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/// </summary>
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/// <param name="instring"></param>
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/// <returns></returns>
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public static string GetMd5X15(string instring)
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{
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string temp = GetMd5(instring);
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return temp.Substring(8, 15);
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}
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/// <summary>
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/// 解码
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/// </summary>
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/// <param name="code"></param>
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/// <returns></returns>
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public static string DecodeString(string code)
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{
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try
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{
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string code1 =
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code.Trim().Replace("_1/", "c")
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.Replace("_2/", "Y")
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.Replace("_3/", "A")
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.Replace("_4/", "Z")
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.Replace("_5/", "h")
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.Replace("_6/", "n")
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.Replace("_7/", "I")
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.Replace("_8/", "l")
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.Replace("_9/", "t")
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.Replace("_10/", "e")
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.Replace("_11/", "K")
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.Replace("_12/", "r")
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.Replace("_13/", "o")
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.Replace("_14/", "q")
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.Replace("_15/", "W")
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.Replace("_16/", "+")
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.Replace("_17/", "H")
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.Replace("_18/", "m")
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.Replace("_19/", "F")
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.Replace("_20/", "x")
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.Replace("_21/", "v")
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.Replace("_22/", "B")
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.Replace("_23/", "=")
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.Replace("_0/", "_");
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byte[] inArray = Convert.FromBase64String(code1);
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string html = Encoding.UTF8.GetString(inArray);
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html =
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html.Replace("_1_", "=")
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.Replace("_2_", "?")
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.Replace("_3_", "/")
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.Replace("_4_", ".")
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.Replace("_5_", "&")
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.Replace("_6_", "<")
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.Replace("_7_", ">")
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.Replace("_8_", "'")
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.Replace("_9_", "\"")
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.Replace("_", "_0");
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return html;
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}
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catch (Exception e)
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{
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LogSave.Add("解码数据错误："+code);
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return "";
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}
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}
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/// <summary>
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/// 加密返回数据
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/// </summary>
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/// <param name="html">密文</param>
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/// <returns></returns>
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public static string EncodeString(string html)
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{
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if (string.IsNullOrEmpty(html))
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return "";
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html =
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html.Replace("_0", "_")
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.Replace("=", "_1_")
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.Replace("?", "_2_")
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.Replace("/", "_3_")
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.Replace(".", "_4_")
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.Replace("&", "_5_")
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.Replace("\\", "_6_")
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.Replace(">", "_7_")
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.Replace("'", "_8_")
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.Replace("\"", "_9_");
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string code = Base64Encode.EncodeBase64(html);
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code =
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code.Replace("c", "_1_")
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.Replace("Y", "_2_")
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.Replace("A", "_3_")
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.Replace("Z", "_4_")
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.Replace("h", "_5_")
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.Replace("n", "_6_")
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.Replace("I", "_7_")
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.Replace("o", "_8_")
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.Replace("t", "_9_")
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.Replace("=", "_0_");
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return code;
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}
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#region EBFB8THEA 加密
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public static string _KEY = "XNNRSAA1"; //密钥
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public static string _IV = "RSABPDD2"; //向量
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/// <summary>
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/// 加密
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/// </summary>
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/// <param name="data">需要加密的文本</param>
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/// <returns></returns>
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public static string EncryptEncode(string data)
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{
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byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(_KEY);
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byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(_IV);
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DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
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int i = cryptoProvider.KeySize;
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MemoryStream ms = new MemoryStream();
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CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateEncryptor(byKey, byIV), CryptoStreamMode.Write);
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StreamWriter sw = new StreamWriter(cst);
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sw.Write(data);
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sw.Flush();
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cst.FlushFinalBlock();
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sw.Flush();
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string strRet = Convert.ToBase64String(ms.GetBuffer(), 0, (int)ms.Length);
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sw.Dispose();
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sw.Close();
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cst.Dispose();
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cst.Close();
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ms.Dispose();
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ms.Close();
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return strRet;
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}
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/// <summary>
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/// 解密
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/// </summary>
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/// <param name="data"></param>
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/// <returns></returns>
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public static string EncryptDecode(string data)
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{
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byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(_KEY);
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byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(_IV);
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byte[] byEnc;
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try
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{
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data.Replace("_%_", "/");
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data.Replace("-%-", "#");
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byEnc = Convert.FromBase64String(data);
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}
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catch
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{
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return null;
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}
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DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
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MemoryStream ms = new MemoryStream(byEnc);
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CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read);
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StreamReader sr = new StreamReader(cst);
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var result = sr.ReadToEnd();
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sr.Dispose();
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sr.Close();
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cst.Dispose();
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cst.Close();
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ms.Dispose();
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ms.Close();
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return result;
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}
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#endregion
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}
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}
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