88 lines
2.3 KiB
C#
88 lines
2.3 KiB
C#
using System;
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using System.IO;
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using System.Diagnostics;
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using System.Threading;
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using System.Reflection;
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using System.Security.Cryptography;
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using System.Text;
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using System.Text.RegularExpressions;
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using Microsoft.Win32;
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namespace RBXLegacyLauncher
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{
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public class SecurityFuncs
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{
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public SecurityFuncs()
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{
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}
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public static string Base64Decode(string base64EncodedData)
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{
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var base64EncodedBytes = System.Convert.FromBase64String(base64EncodedData);
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return System.Text.Encoding.UTF8.GetString(base64EncodedBytes);
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}
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public static string Base64Encode(string plainText)
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{
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var plainTextBytes = System.Text.Encoding.UTF8.GetBytes(plainText);
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return System.Convert.ToBase64String(plainTextBytes);
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}
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public static bool IsBase64String(string s)
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{
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s = s.Trim();
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return (s.Length % 4 == 0) && Regex.IsMatch(s, @"^[a-zA-Z0-9\+/]*={0,3}$", RegexOptions.None);
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}
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public static bool checkClientMD5(string client)
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{
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string rbxexe = "";
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if (GlobalVars.LegacyMode == true)
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{
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rbxexe = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + "\\clients\\" + client + "\\RobloxApp.exe";
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}
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else
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{
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rbxexe = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + "\\clients\\" + client + "\\RobloxPlayer.exe";
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}
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using (var md5 = MD5.Create())
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{
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using (var stream = File.OpenRead(rbxexe))
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{
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byte[] hash = md5.ComputeHash(stream);
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string clientMD5 = BitConverter.ToString(hash).Replace("-", "");
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if (clientMD5.Equals(GlobalVars.MD5))
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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}
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}
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public static bool checkScriptMD5()
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{
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string rbxexe = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + "\\scripts\\CSMPFunctions.lua";
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using (var md5 = MD5.Create())
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{
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using (var stream = File.OpenRead(rbxexe))
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{
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byte[] hash = md5.ComputeHash(stream);
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string clientMD5 = BitConverter.ToString(hash).Replace("-", "");
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if (clientMD5.Equals(GlobalVars.DefaultScriptMD5))
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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}
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}
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}
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}
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