Merge pull request #1 from shiftos-game/master

welp, no longer a dev.

1 files changed, 279 insertions, 0 deletions

diff --git a/ShiftOS.WinForms/Applications/UpdateManager.cs b/ShiftOS.WinForms/Applications/UpdateManager.cs
new file mode 100644
index 0000000..05ae9d0
--- /dev/null
+++ b/ShiftOS.WinForms/Applications/UpdateManager.cs
@@ -0,0 +1,279 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Drawing;
+using System.Data;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using ShiftOS.Engine;
+using ShiftOS.WinForms.Tools;
+using static ShiftOS.Engine.SkinEngine;
+using System.Net;
+using Newtonsoft.Json;
+using System.Reflection;
+using System.IO;
+using System.IO.Compression;
+
+namespace ShiftOS.WinForms.Applications
+{
+    [Launcher("Update Manager", true, "al_update_manager", "Networking")]
+    [DefaultTitle("Update Manager")]
+    [WinOpen("update_manager")]
+    public partial class UpdateManager : UserControl, IShiftOSWindow
+    {
+        public UpdateManager()
+        {
+            InitializeComponent();
+            btnaction.Click += (o, a) => OnActionButtonClick?.Invoke();
+        }
+
+        public void OnLoad()
+        {
+            CheckForUpdate();
+        }
+
+        public void CheckForUpdate()
+        {
+            ConstructHtml(@"ShiftOS is grabbing information on the latest version. Please be patient.");
+            pgdownload.Show();
+            btnaction.Show();
+            lbupdatetitle.Text = "Checking for updates...";
+            pgdownload.Value = 0;
+            pgdownload.Maximum = 100;
+
+            var wc = new WebClient();
+
+            wc.DownloadProgressChanged += (o, a) =>
+            {
+                this.Invoke(new Action(() =>
+                {
+                    pgdownload.Text = "Grabbing update data from multi-user-domain...";
+                    pgdownload.Value = a.ProgressPercentage;
+                }));
+            };
+
+            wc.DownloadStringCompleted += (o, a) =>
+            {
+                var releases = JsonConvert.DeserializeObject<ShiftOS.Objects.Unite.Download[]>(a.Result);
+
+                var download = releases.OrderByDescending(x => x.PostDate).First();
+
+                var thisBuildDate = Assembly.GetExecutingAssembly().GetBuildDate(TimeZoneInfo.Utc);
+
+                if(download.PostDate > thisBuildDate)
+                {
+                    this.Invoke(new Action(() =>
+                    {
+                        //This build is more recent than the currently running ShiftOS client.
+                        SetupBuildUpdate(download);
+                    }));
+                }
+                else
+                {
+                    if (thisBuildDate > download.PostDate)
+                    {
+                        this.Invoke(new Action(() => ConstructHtml($@"### Unreleased build.
+
+You are currently running an unreleased build of ShiftOS, compiled on {thisBuildDate}, after the latest released version, {download.Name}, compiled on {download.PostDate}.")));
+                    }
+                    else
+                    {
+                        this.Invoke(new Action(() => ConstructHtml($@"### Up to date.
+
+You are currently running {download.Name}, compiled on {download.PostDate}.")));
+
+                    }
+                    this.Invoke(new Action(() =>
+                    {
+                        lbupdatetitle.Text = "No update available";
+                        pgdownload.Hide();
+                        btnaction.Hide();
+                    }));
+                }
+            };
+
+            wc.DownloadStringAsync(new Uri("http://getshiftos.ml/API/Releases?showUnstable=true&showObsolete=false"));
+        }
+
+        public void OnSkinLoad()
+        {
+            ConstructHtml(CurrentMD);
+        }
+
+        public bool OnUnload()
+        {
+            return true;
+        }
+
+        public void OnUpgrade()
+        {
+            ConstructHtml(CurrentMD);
+        }
+
+        public void SetupBuildUpdate(ShiftOS.Objects.Unite.Download download)
+        {
+            string devUpdate = "";
+            if (!string.IsNullOrEmpty(download.DevUpdateId))
+            {
+                devUpdate = $@"## Development update
+
+<iframe src=""http://youtube.com/embed/{download.DevUpdateId}"" allowfullscreen width=""720"" height=""480""></iframe>
+";
+            }
+
+            string screenshot = "";
+
+            if(!string.IsNullOrEmpty(download.ScreenshotUrl))
+            {
+                screenshot = $"<img src=\"http://getshiftos.ml{download.ScreenshotUrl}\" style=\"max-width:720px;width:auto;height:auto;\"/>";
+            }
+
+            lbupdatetitle.Text = download.Name;
+            string markdown = $@"**Built on {download.PostDate}**
+
+{devUpdate}
+
+{screenshot}
+
+## Changelog
+
+{download.Changelog}";
+
+            ConstructHtml(markdown);
+
+            pgdownload.Value = 0;
+            pgdownload.Text = "Waiting.";
+            btnaction.Text = "Update";
+            btnaction.Show();
+            OnActionButtonClick = () =>
+            {
+                pgdownload.Show();
+                var wc = new WebClient();
+                wc.DownloadProgressChanged += (o, a) =>
+                {
+                    this.Invoke(new Action(() =>
+                    {
+                        pgdownload.Text = "Downloading " + download.Name + "..."; 
+                        pgdownload.Value = a.ProgressPercentage;
+                    }));
+                };
+
+                wc.DownloadDataCompleted += (o, a) =>
+                {
+                    if (Directory.Exists("updater-work"))
+                        Directory.Delete("updater-work", true);
+                    Directory.CreateDirectory("updater-work");
+
+                    string temp_guid = Guid.NewGuid().ToString();
+
+                    File.WriteAllBytes($"{temp_guid}.zip", a.Result);
+
+                    ZipFile.ExtractToDirectory($"{temp_guid}.zip", "updater-work");
+
+                    File.Delete($"{temp_guid}.zip");
+
+                    //Start the updater helper.
+                    System.Diagnostics.Process.Start("ShiftOS.Updater.exe");
+
+                    //Now we stop the engine.
+                    TerminalBackend.InvokeCommand("sos.shutdown");
+
+                };
+
+                wc.DownloadDataAsync(new Uri($"http://getshiftos.ml{download.DownloadUrl}"));
+            };
+        }
+
+        public Action OnActionButtonClick = () => { };
+
+        public void ConstructHtml(string markdown)
+        {
+            CurrentMD = markdown;
+            var TerminalForeColor = ControlManager.ConvertColor(SkinEngine.LoadedSkin.TerminalForeColorCC);
+            var TerminalBackColor = ControlManager.ConvertColor(SkinEngine.LoadedSkin.TerminalBackColorCC);
+            string html = $@"<html>
+    <head>
+        <style>
+            body {{
+                background-color: rgb({LoadedSkin.ControlColor.R}, {LoadedSkin.ControlColor.G}, {LoadedSkin.ControlColor.B});
+                color: rgb({LoadedSkin.ControlTextColor.R}, {LoadedSkin.ControlTextColor.G}, {LoadedSkin.ControlTextColor.B});
+                font-family: ""{LoadedSkin.MainFont.Name}"";
+                font-size: {LoadedSkin.MainFont.SizeInPoints}pt;
+            }}
+
+            h1 {{
+                font-family: ""{LoadedSkin.HeaderFont.Name}"";
+                font-size: {LoadedSkin.HeaderFont.SizeInPoints}pt;
+            }}
+
+            h2 {{
+                font-family: ""{LoadedSkin.Header2Font.Name}"";
+                font-size: {LoadedSkin.Header2Font.SizeInPoints}pt;
+            }}
+
+            h3 {{
+                font-family: ""{LoadedSkin.Header3Font.Name}"";
+                font-size: {LoadedSkin.Header3Font.SizeInPoints}pt;
+            }}
+
+            pre, code {{
+                font-family: ""{LoadedSkin.TerminalFont.Name}"";
+                font-size: {LoadedSkin.TerminalFont.SizeInPoints}pt;
+                color: rgb({TerminalForeColor.R}, {TerminalForeColor.G}, {TerminalForeColor.B});
+                background-color: rgb({TerminalBackColor.R}, {TerminalBackColor.G}, {TerminalBackColor.B});                
+            }}
+        </style>
+    </head>
+    <body>
+        <markdown/>
+    </body>
+</html>";
+
+            string body = CommonMark.CommonMarkConverter.Convert(markdown);
+            
+            html = html.Replace("<markdown/>", body);
+            wbstatus.DocumentText = html;
+        }
+
+        public string CurrentMD = "";
+
+        private void btnclose_Click(object sender, EventArgs e)
+        {
+            AppearanceManager.Close(this);
+        }
+    }
+
+    public static class UpdateHelpers
+    {
+        /// <summary>
+        /// Grabs the build date from the assembly's PE header.
+        /// </summary>
+        /// <param name="assembly">The assembly to probe.</param>
+        /// <param name="target">The target timezone.</param>
+        /// <returns>The assembly's build date.</returns>
+        public static DateTime GetBuildDate(this Assembly assembly, TimeZoneInfo target = null)
+        {
+            var filePath = assembly.Location;
+            const int c_PeHeaderOffset = 60;
+            const int c_LinkerTimestampOffset = 8;
+
+            var buffer = new byte[2048];
+
+            using (var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
+                stream.Read(buffer, 0, 2048);
+
+            var offset = BitConverter.ToInt32(buffer, c_PeHeaderOffset);
+            var secondsSince1970 = BitConverter.ToInt32(buffer, offset + c_LinkerTimestampOffset);
+            var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+
+            var linkTimeUtc = epoch.AddSeconds(secondsSince1970);
+
+            var tz = target ?? TimeZoneInfo.Local;
+            var localTime = TimeZoneInfo.ConvertTimeFromUtc(linkTimeUtc, tz);
+
+            return localTime;
+        }
+    }
+}