signing

gistfile1.txt

using System;
using System.Security.Cryptography;
using System.Text;
using LKWD.WebService.Debug;

namespace LKWD.WebService
{
	// Token: 0x02000167 RID: 359
	public static class SessionToken
	{
		// Token: 0x06000A5A RID: 2650 RVA: 0x0005F7D4 File Offset: 0x0005D9D4
		public static string Generate(int lAPIVersion, string lSocialNextworkID, string lSecret, DateTime lServerTime)
		{
			if (lAPIVersion >= 10)
			{
				byte[] bytes = Encoding.Unicode.GetBytes(lSocialNextworkID);
				bytes = Encoding.Convert(Encoding.Unicode, Encoding.UTF8, bytes);
				lSocialNextworkID = Encoding.UTF8.GetString(bytes);
			}
			lSocialNextworkID = SessionToken.MobileManglerUserName(lSocialNextworkID);
			string lString = string.Concat(new string[]
			{
				lServerTime.Day.ToString("D2"),
				"76",
				lServerTime.Year.ToString("D4"),
				"99",
				lServerTime.Month.ToString("D2"),
				"86"
			});
			string text = SessionToken.NumericalString(lSocialNextworkID);
			text = SessionToken.RepeatString(text, 100);
			string text2 = SessionToken.RepeatString(lString, 100);
			string text3 = string.Empty;
			string text4 = string.Empty;
			int startIndex = int.Parse(text.Substring(text.Length - 4, 4)) % 15;
			int startIndex2 = int.Parse(text.Substring(text.Length - 5, 4)) % 15;
			int num = int.Parse(text.Substring(text.Length - 6, 4)) % 6;
			int num2 = int.Parse(text.Substring(text.Length - 3, 2)) % 3;
			int startIndex3 = int.Parse(text.Substring(text.Length - 5, 3)) % 15;
			int num3 = int.Parse(text.Substring(text.Length - 6, 3)) % 6;
			int startIndex4 = int.Parse(text.Substring(text.Length - 7, 4)) % 15;
			text = text.Substring(startIndex, 50);
			string text5 = SessionToken.m_Salt.Substring(startIndex2, 50);
			string text6 = text2.Substring(startIndex3, 50);
			string text7 = lSecret.Substring(startIndex4, 50);
			for (int i = 0; i < 50; i++)
			{
				num = (num + 1) % 6;
				num3 = (num3 + 1) % 6;
				int num4 = num * 10;
				int num5 = num3 * 10;
				text3 += SessionToken.m_Conversion[int.Parse(text[i].ToString()) + num4];
				text3 += text5[i];
				text3 += SessionToken.m_Conversion[int.Parse(text6[49 - i].ToString()) + num5];
				text3 += text7[49 - i];
			}
			MD5CryptoServiceProvider mD5CryptoServiceProvider = new MD5CryptoServiceProvider();
			for (int j = 0; j < 2 + num2; j++)
			{
				byte[] array = Encoding.UTF8.GetBytes(text3);
				array = mD5CryptoServiceProvider.ComputeHash(array);
				StringBuilder stringBuilder = new StringBuilder();
				byte[] array2 = array;
				for (int k = 0; k < array2.Length; k++)
				{
					byte b = array2[k];
					stringBuilder.Append(b.ToString("x2").ToLower());
				}
				text4 = stringBuilder.ToString();
				text3 += text4;
			}
			return text4;
		}

		// Token: 0x06000A5B RID: 2651 RVA: 0x0005FAE8 File Offset: 0x0005DCE8
		private static string RepeatString(string lString, int lCharacters)
		{
			string text = string.Empty;
			if (!string.IsNullOrEmpty(lString))
			{
				while (text.Length < lCharacters)
				{
					text += lString;
				}
			}
			else
			{
				Logger.LogError("WebservicesBase : Repeat String FAILED!");
			}
			return text;
		}

		// Token: 0x06000A5C RID: 2652 RVA: 0x0005FB30 File Offset: 0x0005DD30
		private static string NumericalString(string lString)
		{
			string text = string.Empty;
			for (int i = 0; i < lString.Length; i++)
			{
				text += ((int)(lString[i] % '\n')).ToString();
			}
			return text;
		}

		// Token: 0x06000A5D RID: 2653 RVA: 0x0005FB74 File Offset: 0x0005DD74
		private static string MobileManglerUserName(string lName)
		{
			byte[] bytes = Encoding.UTF8.GetBytes(lName);
			string text = Encoding.UTF8.GetString(Encoding.UTF8.GetBytes(string.Empty));
			char c = SessionToken.m_Salt[bytes.Length % SessionToken.m_Salt.Length];
			for (int i = 0; i < bytes.Length; i++)
			{
				text += (char)bytes[i];
				if (i % 3 == 0)
				{
					text += c;
				}
			}
			return text;
		}

		// Token: 0x040006E2 RID: 1762
		private static char[] m_Conversion = new char[]
		{
			'w',
			'e',
			'r',
			't',
			'y',
			'u',
			'i',
			'o',
			'p',
			'a',
			's',
			'd',
			'f',
			'g',
			'h',
			'j',
			'k',
			'l',
			'z',
			'x',
			'c',
			'v',
			'b',
			'n',
			'm',
			'Q',
			'E',
			'R',
			'T',
			'Y',
			'U',
			'I',
			'O',
			'P',
			'A',
			'S',
			'D',
			'F',
			'G',
			'H',
			'J',
			'K',
			'L',
			'Z',
			'X',
			'C',
			'V',
			'B',
			'N',
			'M',
			'0',
			'1',
			'2',
			'3',
			'4',
			'5',
			'6',
			'7',
			'8',
			'9'
		};

		// Token: 0x040006E3 RID: 1763
		private static string m_Salt = "!A*3&k^3(d&P$W@9,q:2=5#V!z.1[M7;F}4)0*O*h{8|d~f]7[L^r@K)4&b+Q-g>5_v|T<X%p!9=3}S^s";
	}
}