gistfile1.txt

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms; 
using System.Threading;
using System.Diagnostics;
using ForScience;
using System.Net;
using System.IO;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public string username;
        public string password;
        public delegate void DelegateClose();
        public delegate void DelegateSetStatus(string arg1);
        public delegate void DelegateEnableLoginButton();
        public Form1() {
            InitializeComponent();
            rememberCheckBox.Checked = Properties.Settings.Default.saveSettings;
            if (rememberCheckBox.Checked)
            {
                userField.Text = Properties.Settings.Default.username;
                passField.Text = Properties.Settings.Default.password;
            }
        }

        private void loginButton_Click(object sender, EventArgs e) {
            loginButton.Enabled = false;
            SetStatusText("Logging in. . .");
            username = userField.Text;
            password = passField.Text;
            if (requiresUpdate())
            {
                DialogResult dialogResult = MessageBox.Show("Update available! Do you want to update?", "Update", MessageBoxButtons.YesNo);
                if (dialogResult == DialogResult.Yes)
                {
                    update();
                    return;
                }
            }
            login();
        }
        public void login()
        {
            Thread loginThread = new Thread(loginThreaded);
            loginThread.Start();
        }
        public void loginThreaded()
        {
            SetStatusText("Logging in. . .");
            try
            {
                MyWebRequest request = new MyWebRequest("https://login.minecraft.net/", "POST", "user=" + username + "&password=" + password + "&version=1000");
                string[] strArray = request.GetResponse().Split(new char[] { ':' });
                string appData = Environment.GetEnvironmentVariable("APPDATA");
                startGame(strArray[2], strArray[3]);
                DoClose();
            }
            catch
            {
                SetStatusText("");
                DialogResult dialogResult = MessageBox.Show("Error logging in. Do you wish to play in offline mode?", "Login", MessageBoxButtons.YesNo);
                if (dialogResult == DialogResult.Yes)
                {
                    startGame("MrFaggot", "meow");
                    DoClose();
                    return;
                }
                else
                {
                    EnableLoginButton();
                    return;
                }
            }
        }

        private void startGame(string username, string sessionid)
        {
            string appData = Environment.GetEnvironmentVariable("APPDATA");
            Process mc = new Process();
            // Stop the process from opening a new window
            mc.StartInfo.RedirectStandardOutput = true;
            mc.StartInfo.UseShellExecute = false;
            mc.StartInfo.CreateNoWindow = true;

            // Setup executable and parameters
            mc.StartInfo.FileName = "java";
            mc.StartInfo.Arguments = "-Xincgc -Xmx1024m -cp \""+appData + @"\.minecraft\bin\ForScience.jar;" + appData + @"\.minecraft\bin\lwjgl.jar;" + appData + @"\.minecraft\bin\lwjgl_util.jar;" + appData + "\\.minecraft\\bin\\jinput.jar\" -Djava.library.path=\"" + appData + "\\.minecraft\\bin\\natives\" net.minecraft.client.Minecraft " + username + " " + sessionid;
            mc.Start();
        }
        public void update()
        {
            Thread updateThread = new Thread(updateThreaded);
            updateThread.Start();
        }
        public void updateThreaded()
        {
            SetStatusText("Downloading update. . .");
            String appData = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
            string remoteUri = "https://dl.dropbox.com/u/5332200/ForScience/ForScience.jar";
            string fileName = appData + @"\.minecraft\bin\ForScience.jar";
            // Create a new WebClient instance.
            WebClient myWebClient = new WebClient();
            myWebClient.DownloadProgressChanged += new DownloadProgressChangedEventHandler(downloadStatusChange);
            myWebClient.DownloadFileCompleted += new AsyncCompletedEventHandler(downloadFileCompleted);
            // Download the Web resource and save it into the current filesystem folder.
            myWebClient.DownloadFileAsync(new Uri(remoteUri), fileName);
        }
        void downloadStatusChange(object sender, DownloadProgressChangedEventArgs e)
        {
            double bytesIn = double.Parse(e.BytesReceived.ToString());
            double totalBytes = double.Parse(e.TotalBytesToReceive.ToString());
            double percentage = bytesIn / totalBytes * 100;

            SetStatusText(@"Download Progress: " + Math.Truncate(percentage).ToString() + @"%");
        }
        void downloadFileCompleted(object sender, AsyncCompletedEventArgs e)
        {
            String appData = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
            File.Delete(appData + @"\.minecraft\bin\ForScience.md5");
            File.Move(appData + @"\.minecraft\bin\update.md5", appData + @"\.minecraft\bin\ForScience.md5");
            SetStatusText("Update Finished.");
            login();
        }
        public bool requiresUpdate()
        {
            SetStatusText("Checking for updates. . .");
            String appData = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
            if (!File.Exists(appData + @"\.minecraft\bin\ForScience.md5"))
            {
                File.Create(appData + @"\.minecraft\bin\ForScience.md5");
                return true;
            }
            if (!File.Exists(appData + @"\.minecraft\bin\ForScience.jar"))
            {
                return true;
            }
            string remoteUri = "https://dl.dropbox.com/u/5332200/ForScience/update.md5";
            try
            {
                File.Delete(appData + @"\.minecraft\bin\update.md5");
            }
            catch {}
            try
            {
                WebClient myWebClient = new WebClient();
                string fileName = "update.md5";
                myWebClient.DownloadFile(remoteUri, fileName);
                File.Move("update.md5", appData + @"\.minecraft\bin\update.md5");
                System.Collections.Generic.IEnumerable<string> localVersion = File.ReadLines(appData + @"\.minecraft\bin\ForScience.md5");
                System.Collections.Generic.IEnumerable<string> remoteVersion = File.ReadLines(appData + @"\.minecraft\bin\update.md5");
                if (localVersion.SequenceEqual(remoteVersion))
                {
                    return false; // Does not need update
                }
                else
                {
                    return true; // Needs update
                }
            }
            catch
            {
                SetStatusText("Error checking for updates!");
                return false;
            }
        }
        public void DoClose()
        {
            if (this.InvokeRequired)
            {
                DelegateClose theDelegateMethod = new DelegateClose(this.DoClose);
                this.Invoke(theDelegateMethod);
            }
            else
            {
                this.SaveSettings();
                this.Close();
            }
        }
        public void SetStatusText(string arg1)
        {
            if (this.InvokeRequired)
            {
                DelegateSetStatus theDelegateMethod = new DelegateSetStatus(this.SetStatusText);
                this.Invoke(theDelegateMethod,arg1);
            }
            else
            {
                this.statusText.Text = arg1;
            }
        }

        public void EnableLoginButton()
        {
            if (this.InvokeRequired)
            {
                DelegateEnableLoginButton theDelegateMethod = new DelegateEnableLoginButton(this.EnableLoginButton);
                this.Invoke(theDelegateMethod);
            }
            else
            {
                loginButton.Enabled = true;
            }
        }
        public void SaveSettings()
        {
            if (rememberCheckBox.Checked)
            {
                Properties.Settings.Default.username = username;
                Properties.Settings.Default.password = password;
                Properties.Settings.Default.saveSettings = rememberCheckBox.Checked;
            }
            else
            {
                Properties.Settings.Default.username = "";
                Properties.Settings.Default.password = "";
                Properties.Settings.Default.saveSettings = false;
            }
            Properties.Settings.Default.Save();
        }
    }
}