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https://git.do.srb2.org/STJr/UltimateZoneBuilder.git
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357 lines
11 KiB
C#
Executable file
357 lines
11 KiB
C#
Executable file
#region ================== Namespaces
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Diagnostics;
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using System.IO;
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using System.Net;
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using System.Text;
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using System.Windows.Forms;
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using System.Xml;
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using SharpCompress.Archives.SevenZip;
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//using SharpCompress.Common;
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using SharpCompress.Readers;
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#endregion
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namespace CodeImp.DoomBuilder
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{
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internal static class UpdateChecker
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{
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#if NO_UPDATER
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internal static void PerformCheck(bool verbosemode)
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{
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}
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#else
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private delegate DialogResult ShowWarningMessageDelegate(string message, MessageBoxButtons buttons);
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private const string NO_UPDATE_REQUIRED = "Your version is up to date.";
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private static BackgroundWorker worker;
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private static bool verbose;
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internal static void PerformCheck(bool verbosemode)
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{
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// Update check already runing?
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if(worker != null && worker.IsBusy)
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{
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if(verbosemode) General.ShowWarningMessage("Update check is already running!", MessageBoxButtons.OK);
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return;
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}
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// Check if we have write access...
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if(!General.CheckWritePremissions(General.AppPath))
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{
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string msg = "Cannot perform update: your user account does not have write access to the destination folder \"" + General.AppPath + "\"\n"
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+ "Move the editor to a folder with write access, or run it as Administrator.";
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if(verbosemode) General.ShowWarningMessage(msg, MessageBoxButtons.OK);
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else General.ErrorLogger.Add(ErrorType.Error, msg);
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return;
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}
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// Start checking
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verbose = verbosemode;
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worker = new BackgroundWorker();
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worker.DoWork += DoWork;
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worker.RunWorkerCompleted += RunWorkerCompleted;
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worker.WorkerSupportsCancellation = true;
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worker.RunWorkerAsync();
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}
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private static void DoWork(object sender, DoWorkEventArgs e)
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{
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try
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{
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string updaterpath = Path.Combine(General.AppPath, "Updater.exe");
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if (!File.Exists(updaterpath))
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{
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ShowResult("Update check failed: \"" + updaterpath + "\" does not exist!");
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e.Cancel = true;
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return;
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}
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string inipath = Path.Combine(General.AppPath, "Updater.ini");
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if (!File.Exists(inipath))
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{
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ShowResult("Update check failed: \"" + inipath + "\" does not exist!");
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e.Cancel = true;
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return;
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}
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// Get some ini values...
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string url = string.Empty;
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string updaterpackname = string.Empty;
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string[] inilines = File.ReadAllLines(inipath);
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foreach (string line in inilines)
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{
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string cplatform = (Environment.Is64BitProcess ? "x64" : "x86");
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if (line.StartsWith("URL")) url = line.Substring(3).Trim();
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else if (line.StartsWith("UpdaterName")) updaterpackname = line.Substring(11).Trim().Replace("[PLATFORM]", cplatform);
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}
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if (string.IsNullOrEmpty(url))
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{
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ShowResult("Update check failed: failed to get update url from Updater.ini!");
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e.Cancel = true;
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return;
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}
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if (string.IsNullOrEmpty(updaterpackname))
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{
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ShowResult("Update check failed: failed to get updater pack name from Updater.ini!");
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e.Cancel = true;
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return;
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}
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// Get local revision number
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int localrev = General.ThisAssembly.GetName().Version.Revision;
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int actuallocalrev = localrev;
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if (!verbose) localrev = Math.Max(localrev, General.Settings.IgnoredRemoteRevision);
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// Get remote revision numbers
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int remoterev, remoteupdaterrev;
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MemoryStream stream = DownloadWebFile(Path.Combine(url, "Versions.txt"));
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if (stream == null)
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{
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ShowResult("Update check failed: failed to retrieve remote revision info.\nCheck your Internet connection and try again.");
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e.Cancel = true;
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return;
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}
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List<string> lines = new List<string>(2);
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using (StreamReader reader = new StreamReader(stream))
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{
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while (!reader.EndOfStream) lines.Add(reader.ReadLine());
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}
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if (lines.Count != 2)
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{
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ShowResult("Update check failed: invalid remote revision number.");
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e.Cancel = true;
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return;
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}
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if (!int.TryParse(lines[0], out remoterev))
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{
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ShowResult("Update check failed: failed to retrieve remote revision number.");
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e.Cancel = true;
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return;
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}
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if (!int.TryParse(lines[1], out remoteupdaterrev))
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{
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ShowResult("Update check failed: failed to retrieve remote updater revision number.");
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e.Cancel = true;
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return;
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}
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// Update the updater!
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string result = UpdateUpdater(url, updaterpackname, remoteupdaterrev);
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if (!string.IsNullOrEmpty(result))
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{
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ShowResult("Update check failed: " + result);
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e.Cancel = true;
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return;
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}
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if (remoterev > localrev)
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{
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// Get changelog info
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string changelog = GetChangelog(url, actuallocalrev);
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if (string.IsNullOrEmpty(changelog))
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{
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ShowResult("Update check failed: failed to retrieve changelog.\nCheck your Internet connection and try again.");
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e.Cancel = true;
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return;
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}
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// Pass data to MainForm
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General.MainWindow.UpdateAvailable(remoterev, changelog);
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}
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else if (verbose)
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{
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ShowResult(NO_UPDATE_REQUIRED);
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}
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}
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catch (Exception ex)
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{
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General.ErrorLogger.Add(ErrorType.Warning, string.Format("Update check failed:\n\n{0}", ex.ToString()));
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}
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}
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private static string UpdateUpdater(string url, string updaterpackname, int remoterev)
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{
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// Check if updater is running...
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try
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{
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Process[] processes = Process.GetProcesses();
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// Abort if it's running...
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foreach(Process process in processes)
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{
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if(process.ProcessName == "Updater" &&
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Path.GetDirectoryName(process.MainModule.FileName) == Application.StartupPath)
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{
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return "Updater.exe is already running.";
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}
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}
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}
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catch(Exception e)
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{
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return "failed to check Updater process: " + e.Message;
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}
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// Check local revision
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int localrev = FileVersionInfo.GetVersionInfo("Updater.exe").ProductPrivatePart;
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if(localrev < remoterev)
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{
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// Download update
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MemoryStream stream = DownloadWebFile(Path.Combine(url, updaterpackname));
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if(stream == null)
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{
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return "failed to download Updater package.";
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}
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// Unpack update
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try
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{
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using(SevenZipArchive arc = SevenZipArchive.Open(stream))
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{
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if(!arc.IsComplete) return "downloaded Updater package is not complete.";
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IReader reader = arc.ExtractAllEntries();
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// Unpack all
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while(reader.MoveToNextEntry())
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{
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if(reader.Entry.IsDirectory) continue; // Shouldn't be there, but who knows...
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reader.WriteEntryToDirectory(General.AppPath, new ExtractionOptions() { ExtractFullPath = true, Overwrite = true });
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}
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}
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}
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catch(Exception e)
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{
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return "failed to unpack the Updater: " + e.Message;
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}
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}
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return string.Empty;
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}
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private static void ShowResult(string message)
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{
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if(!string.IsNullOrEmpty(message))
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{
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if(verbose)
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{
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if(General.MainWindow.InvokeRequired)
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General.MainWindow.Invoke(new ShowWarningMessageDelegate(General.ShowWarningMessage), new object[] { message, MessageBoxButtons.OK });
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else
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General.ShowWarningMessage(message, MessageBoxButtons.OK);
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}
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else if(message != NO_UPDATE_REQUIRED)
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{
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General.ErrorLogger.Add(ErrorType.Error, message);
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}
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}
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}
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private static void RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
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{
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worker = null;
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}
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private static string GetChangelog(string url, int localrev)
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{
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StringBuilder sb = new StringBuilder(@"{\rtf1");
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using(MemoryStream stream = DownloadWebFile(Path.Combine(url, "Changelog.xml")))
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{
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if(stream == null) return string.Empty;
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XmlDocument doc = new XmlDocument();
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doc.Load(stream);
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// Revision infos go in descending order
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if(doc.ChildNodes.Count == 0) return string.Empty;
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foreach(XmlNode log in doc.ChildNodes)
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{
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if(log.ChildNodes.Count == 0) continue;
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foreach(XmlNode logentry in log.ChildNodes)
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{
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if(logentry.Attributes == null) continue;
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var revnode = logentry.Attributes.GetNamedItem("revision");
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var comnode = logentry.Attributes.GetNamedItem("commit");
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if(revnode == null || comnode == null) continue;
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int noderev;
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if(!int.TryParse(revnode.Value, out noderev)) continue;
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if(noderev <= localrev) break;
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string commit = comnode.Value;
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string message = string.Empty;
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XmlNode msgnode = logentry["msg"];
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if(msgnode != null) message = msgnode.InnerText.Trim().Replace(Environment.NewLine, @"\par ");
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// Add info
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sb.Append(@"{\b R")
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.Append(noderev)
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.Append(" | ")
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.Append(commit)
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.Append(@":}\par ")
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.Append(message)
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.Append(@"\par\par ");
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}
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}
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}
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sb.Append("}");
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return sb.ToString();
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}
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private static MemoryStream DownloadWebFile(string url)
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{
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// Open a data stream from the supplied URL
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WebRequest request = WebRequest.Create(url);
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WebResponse response;
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try
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{
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response = request.GetResponse();
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}
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catch(WebException /*e*/)
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{
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//General.ErrorLogger.Add(ErrorType.Warning, e.ToString());
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return null;
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}
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Stream source = response.GetResponseStream();
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if(source == null) return null;
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// Download the data in chuncks
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byte[] buffer = new byte[1024];
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// Download the data
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MemoryStream result = new MemoryStream();
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while(!General.MainWindow.IsDisposed)
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{
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// Let's try and read the data
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int numbytes = source.Read(buffer, 0, buffer.Length);
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if(numbytes == 0) break; // Download complete
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// Write the downloaded data
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result.Write(buffer, 0, numbytes);
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}
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// Release resources
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source.Close();
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// Rewind and return the stream
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result.Position = 0;
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return result;
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}
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#endif
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}
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}
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