Windower v4 Launcher

using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Runtime.InteropServices;
using System.Security.Cryptography;
using System.Text;
internal sealed class Class26
{
    private static readonly System.Version version_0 = typeof(Class26).Assembly.GetName().Version;
    private static readonly string string_0 = Class26.smethod_0();
    private static readonly string string_1 = Class26.smethod_1();
    private readonly System.Collections.Generic.Dictionary<string, object> dictionary_0 = new System.Collections.Generic.Dictionary<string, object>();
    private static Func<byte, System.Collections.Generic.IEnumerable<char>> func_0;
    public Class26(string string_2)
    {
        this.method_0("tid", "UA-36204578-2");
        this.method_0("aid", null);
        this.method_0("cid", Class26.string_0);
        this.method_0("t", string_2);
        this.method_0("an", "Launcher");
        this.method_0("av", Class26.version_0);
    }
    public void method_0(string string_2, object object_0)
    {
        bool? flag = object_0 as bool?;
        this.dictionary_0.Add(string_2, (!flag.HasValue) ? object_0 : (flag.GetValueOrDefault() ? 1 : 0));
    }
    public void method_1()
    {
        HttpWebRequest httpWebRequest = WebRequest.Create("https://ssl.google-analytics.com/collect") as HttpWebRequest;
        if (httpWebRequest != null)
        {
            httpWebRequest.Proxy = null;
            httpWebRequest.UserAgent = Class26.string_1;
            httpWebRequest.Method = "POST";
            System.IO.Stream stream = null;
            try
            {
                stream = httpWebRequest.GetRequestStream();
                System.IO.StreamWriter streamWriter = new System.IO.StreamWriter(stream);
                try
                {
                    stream = null;
                    streamWriter.Write("v=1");
                    foreach (System.Collections.Generic.KeyValuePair<string, object> current in this.dictionary_0)
                    {
                        string key = current.Key;
                        string stringToEscape = (current.Value ?? string.Empty).ToString();
                        streamWriter.Write('&');
                        streamWriter.Write(Uri.EscapeDataString(key));
                        streamWriter.Write('=');
                        streamWriter.Write(Uri.EscapeDataString(stringToEscape));
                    }
                }
                finally
                {
                    ((System.IDisposable)streamWriter).Dispose();
                }
            }
            finally
            {
                if (stream != null)
                {
                    stream.Dispose();
                }
            }
            httpWebRequest.GetResponse().GetResponseStream().Dispose();
        }
    }
    private static string smethod_0()
    {
        System.Guid guid;
        using (Microsoft.Win32.RegistryKey registryKey = Microsoft.Win32.RegistryKey.OpenBaseKey(Microsoft.Win32.RegistryHive.LocalMachine, RegistryView.Registry64))
        {
            using (Microsoft.Win32.RegistryKey registryKey2 = registryKey.OpenSubKey("SOFTWARE\\Microsoft\\Cryptography"))
            {
                if (registryKey2 == null || !System.Guid.TryParse((registryKey2.GetValue("MachineGuid") as string) ?? string.Empty, out guid))
                {
                    guid = System.Guid.NewGuid();
                }
            }
        }
        System.Security.Cryptography.HMAC hMAC = new System.Security.Cryptography.HMACSHA256(guid.ToByteArray());
        string result;
        try
        {
            byte[] array = hMAC.ComputeHash(new byte[]
            {
                36,
                63,
                106,
                136,
                133,
                163,
                8,
                211,
                19,
                25,
                138,
                46,
                3,
                112,
                115,
                68,
                164,
                9,
                56,
                34,
                41,
                159,
                49,
                208,
                8,
                46,
                250,
                152,
                236,
                78,
                108,
                137,
                69,
                40,
                33,
                230,
                56,
                208,
                19,
                119,
                190,
                84,
                102,
                207,
                52,
                233,
                12,
                108,
                192,
                172,
                41,
                183,
                201,
                124,
                80,
                221,
                63,
                132,
                213,
                181,
                181,
                71,
                9,
                23,
                146,
                22,
                213,
                217,
                137,
                121,
                251,
                27,
                209,
                49,
                11,
                166,
                152,
                223,
                181,
                172,
                47,
                253,
                114,
                219,
                208,
                26,
                223,
                183,
                184,
                225,
                175,
                237,
                106,
                38,
                126,
                150,
                186,
                124,
                144,
                69,
                241,
                44,
                127,
                153,
                36,
                161,
                153,
                71,
                179,
                145,
                108,
                247,
                8,
                1,
                242,
                226,
                133,
                142,
                252,
                22,
                99,
                105,
                32,
                216,
                113,
                87,
                78,
                105
            });
            System.Collections.Generic.IEnumerable<byte> arg_A8_0 = array;
            if (Class26.func_0 == null)
            {
                Class26.func_0 = new Func<byte, System.Collections.Generic.IEnumerable<char>>(Class26.smethod_3);
            }
            result = new string(arg_A8_0.SelectMany(Class26.func_0).ToArray<char>());
        }
        finally
        {
            ((System.IDisposable)hMAC).Dispose();
        }
        return result;
    }
    private static string smethod_1()
    {
        System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder("Windower/");
        stringBuilder.Append(Class26.version_0.Major).Append('.').Append(Class26.version_0.Minor);
        stringBuilder.Append(" (");
        System.OperatingSystem oSVersion = System.Environment.OSVersion;
        System.PlatformID platform = oSVersion.Platform;
        switch (platform)
        {
        case System.PlatformID.Win32Windows:
        {
            int minor = oSVersion.Version.Minor;
            if (minor == 0)
            {
                stringBuilder.Append("Windows 95");
                goto IL_1CB;
            }
            if (minor == 10)
            {
                stringBuilder.Append("Windows 98");
                goto IL_1CB;
            }
            if (minor != 90)
            {
                stringBuilder.Append("Win 9x ");
                stringBuilder.Append(oSVersion.Version.Major).Append('.').Append(oSVersion.Version.Minor);
                goto IL_1CB;
            }
            stringBuilder.Append("Windows 98; Win 9x 4.90");
            goto IL_1CB;
        }
        case System.PlatformID.Win32NT:
            stringBuilder.Append("Windows NT ");
            stringBuilder.Append(oSVersion.Version.Major).Append('.').Append(oSVersion.Version.Minor);
            if (System.Environment.Is64BitOperatingSystem)
            {
                stringBuilder.Append(System.Environment.Is64BitProcess ? "; Win64; x64" : "; WOW64");
                goto IL_1CB;
            }
            goto IL_1CB;
        case System.PlatformID.WinCE:
        case System.PlatformID.Xbox:
            goto IL_1CB;
        case System.PlatformID.Unix:
        case System.PlatformID.MacOSX:
            break;
        default:
            if (platform != (System.PlatformID)128)
            {
                goto IL_1CB;
            }
            break;
        }
        string text = Class26.smethod_2();
        if (text == "Darwin")
        {
            stringBuilder.Append("Macintosh; Intel Mac OS X ");
            stringBuilder.Append(oSVersion.Version.Major).Append('.').Append(oSVersion.Version.Minor);
        }
        else
        {
            stringBuilder.Append(text).Append(System.Environment.Is64BitOperatingSystem ? "; x86_64" : "; i686");
        }
        IL_1CB:
        stringBuilder.Append(')');
        return stringBuilder.ToString();
    }
    private static string smethod_2()
    {
        System.IntPtr intPtr = System.IntPtr.Zero;
        try
        {
            intPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(8192);
            if (Class27.uname(intPtr) == 0)
            {
                return System.Runtime.InteropServices.Marshal.PtrToStringAnsi(intPtr);
            }
        }
        finally
        {
            if (intPtr != System.IntPtr.Zero)
            {
                System.Runtime.InteropServices.Marshal.FreeHGlobal(intPtr);
            }
        }
        return null;
    }
    private static System.Collections.Generic.IEnumerable<char> smethod_3(byte byte_0)
    {
        return byte_0.ToString("X2", System.Globalization.CultureInfo.InvariantCulture).ToCharArray();
    }
}