MainWindow.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Forms;
using System.Diagnostics;
using System.Net;
using System.Net.Http;
using System.IO;
using System.IO.Compression;
using IWshRuntimeLibrary;
using System.Reflection;
using System.Drawing.Drawing2D;
using System.Security.AccessControl;
using System.Security.Principal;

namespace EyeTRackVR_Installer
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary
    /// 
    public static class Extensions
    {
        public static async Task DownloadFile(this HttpClient client, string address, string fileName)
        {
            using (var response = await client.GetAsync(address))
            using (var stream = await response.Content.ReadAsStreamAsync())
            using (var file = System.IO.File.OpenWrite(fileName))
            {
                stream.CopyTo(file);
            }
        }
    }








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    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();





            string rootPath = @AppDomain.CurrentDomain.BaseDirectory;
            string[] dirs = Directory.GetDirectories(rootPath, "*", SearchOption.TopDirectoryOnly);




           

            //public static void ExtractToDirectory(string sourceArchiveFileName, string destinationDirectoryName);



        }

        public void ExtractZipFileToDirectory(string sourceZipFilePath, string destinationDirectoryName, bool overwrite)
        {
            using (var archive = ZipFile.Open(sourceZipFilePath, ZipArchiveMode.Read))
            {
                if (!overwrite)
                {
                    archive.ExtractToDirectory(destinationDirectoryName);
                    return;
                }

                DirectoryInfo di = Directory.CreateDirectory(destinationDirectoryName);
                string destinationDirectoryFullPath = di.FullName;

                foreach (ZipArchiveEntry file in archive.Entries)
                {
                    string completeFileName = System.IO.Path.GetFullPath(System.IO.Path.Combine(destinationDirectoryFullPath, file.FullName));

                    if (!completeFileName.StartsWith(destinationDirectoryFullPath, StringComparison.OrdinalIgnoreCase))
                    {
                        throw new IOException("Trying to extract file outside of destination directory. See this link for more info: https://snyk.io/research/zip-slip-vulnerability");
                    }

                    if (file.Name == "")
                    {// Assuming Empty for Directory
                        Directory.CreateDirectory(System.IO.Path.GetDirectoryName(completeFileName));
                        continue;
                    }
                    file.ExtractToFile(completeFileName, true);
                }
            }
        }




        private static void GrantAccess(string file)
        {
            bool exists = System.IO.Directory.Exists(file);
            if (!exists)
            {
                DirectoryInfo di = System.IO.Directory.CreateDirectory(file);
                
            }

            DirectoryInfo dInfo = new DirectoryInfo(file);
            DirectorySecurity dSecurity = dInfo.GetAccessControl();
            dSecurity.AddAccessRule(new FileSystemAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), FileSystemRights.FullControl, InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit, PropagationFlags.NoPropagateInherit, AccessControlType.Allow));
            dInfo.SetAccessControl(dSecurity);

        }



        private void CloseButton_Click(object sender, RoutedEventArgs e) //when X is clicked, close
        {
                Close();
        }

        private void MinimizeButton_Click(object sender, RoutedEventArgs e) //when - is clicked, minimize
        {
            this.WindowState = WindowState.Minimized;
        }
        

        public string folderdir; 
        public string inspath;
        public bool? mkshortcut;
        public bool? delinstaller;
        public void ChangePath_Click(object sender, RoutedEventArgs e) //open file browser
        {
            FolderBrowserDialog fbd = new FolderBrowserDialog();
            fbd.RootFolder = Environment.SpecialFolder.Desktop;
            fbd.Description = "Select Install folder";
            fbd.ShowNewFolderButton = false;

            if (fbd.ShowDialog() == System.Windows.Forms.DialogResult.OK) 
            {
                inspath = fbd.SelectedPath + "\\EyeTrackVRtemp.zip"; //set selected path to that path and append /eyetrackvr to it
                folderdir = fbd.SelectedPath + "\\EyeTrackVR";
                textBox1.Text = folderdir;
            }
        }


        private void mkUnchecked(object sender, RoutedEventArgs e)  // check if check is checked
        {
            mkshortcut = false;
        }
        private void mkCheck(object sender, RoutedEventArgs e)
        {
            mkshortcut = true;

        }

        private void delUnchecked(object sender, RoutedEventArgs e)  // check if check is checked
        {
            delinstaller = false;
        }
        private void delCheck(object sender, RoutedEventArgs e)
        {
            delinstaller = true;

        }



        private void Docs_Click(object sender, RoutedEventArgs e) //docs link at top
        {

            Process DocsProcess = new Process();
            DocsProcess.StartInfo.UseShellExecute = true;
            DocsProcess.StartInfo.FileName = "https://redhawk989.github.io/EyeTrackVR/";
            DocsProcess.Start();
        }

        private void Github_Click(object sender, RoutedEventArgs e) //github link at top
        {

            Process GithubProcess = new Process();
            GithubProcess.StartInfo.UseShellExecute = true;
            GithubProcess.StartInfo.FileName = "https://github.com/RedHawk989/EyeTrackVR";
            GithubProcess.Start();
        }


        private void Discord_Click(object sender, RoutedEventArgs e) //discord link at top
        {
            Process DiscordProcess = new Process();
            DiscordProcess.StartInfo.UseShellExecute = true;
            DiscordProcess.StartInfo.FileName = "https://discord.gg/kkXYbVykZX";
            DiscordProcess.Start();
        }

        public async void InstallButton_Click(object sender, RoutedEventArgs e)
        {
            //actually install stuff lmao
            textBox2.Text = "";
            InstallButton.Content = "Installing...";

            System.Net.WebClient wc = new System.Net.WebClient();
            byte[] raw = wc.DownloadData("https://raw.githubusercontent.com/RedHawk989/EyeTrackVR-Installer/master/Version-Data/Latest_Version.txt");  //get download link from repo
            string webData = System.Text.Encoding.UTF8.GetString(raw);
            webData = webData.Replace("\n", "").Replace("\r", "");


            System.Net.WebClient wc2 = new System.Net.WebClient();
            byte[] raw2 = wc.DownloadData("https://raw.githubusercontent.com/RedHawk989/EyeTrackVR-Installer/master/Version-Data/Version_Num.txt");  //get latest version num
            string webData2 = System.Text.Encoding.UTF8.GetString(raw2);
            webData2 = webData2.Replace("\n", "").Replace("\r", "");




            if (string.IsNullOrEmpty(folderdir)) //define default dirs
            {
                folderdir = "C:\\Program Files\\EyeTrackVR";
            }

            if (string.IsNullOrEmpty(inspath))
            {
                inspath = "C:\\Program Files\\EyeTrackVR\\EyeTrackVRtemp.zip"; //name of zip folder once downloaded
            }

            System.IO.Directory.CreateDirectory(folderdir); //create install dir





            InstallButton.Content = "Downloading...";
            using (var httpClient = new HttpClient()) // download zip
            {
                HttpClient httpClient1 = httpClient;
                await httpClient1.DownloadFile(webData, inspath);
            }

            
            InstallButton.Content = "Extracting...";
            await Task.Delay(500); //give OS time. fixes odd bug where System.IO.InvalidDataException: 'Central Directory corrupt.' would be called
                                   // ZipFile.ExtractToDirectory(inspath, folderdir); //extract zip


            ExtractZipFileToDirectory(inspath, folderdir, true);





            GrantAccess(folderdir); //make perms on install folder user, this keeps the eyetracking app from trowing no permission errors.



            InstallButton.Content = "Cleaning...";
            System.IO.File.Delete(inspath); // delete zip




           
            if (!mkshortcut.HasValue || mkshortcut is true)         // if box is checked make a shortcut on desktop
            {
                InstallButton.Content = "Making Shortcut...";
                string deskDir = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
                string exepath = folderdir + "\\EyeTrackApp-" + webData2 + "-win-amd-64\\EyeTrackApp.exe";
                
                string link = Environment.GetFolderPath(Environment.SpecialFolder.Desktop)
                + System.IO.Path.DirectorySeparatorChar + "EyeTrackVR" + ".lnk";
                var shell = new WshShell();
                var shortcut = shell.CreateShortcut(link) as IWshShortcut;
                
                shortcut.TargetPath = exepath;
                shortcut.WorkingDirectory = folderdir; //where output files will be made from the eyetrack app
                shortcut.Save(); 
            }






            textBox2.Text = "Successfully Installed!";
            InstallButton.Content = "Installed!";
        }

        private void Get_MouseDown(object sender, MouseButtonEventArgs e) //allow window to be moved on the top
        {
            if (e.LeftButton == MouseButtonState.Pressed)
            {
                DragMove();
            }
        }





    }
}