public ReadWriteZipFile(string filename, bool create = false)
{
// SharpZipLib breaks when asked to update archives loaded from outside streams or files
// We can work around this by creating a clean in-memory-only file, cutting all outside references
if (!create)
{
new MemoryStream(File.ReadAllBytes(filename)).CopyTo(pkgStream);
}
pkgStream.Position = 0;
pkg = ZipFileHelper.Create(pkgStream);
Name = filename;
}
public ReadOnlyZipFile(Stream s, string filename)
{
Name = filename;
pkg = ZipFileHelper.Create(s);
}
void ShowDownloadDialog()
{
getStatusText = () => "Fetching list of mirrors...";
progressBar.Indeterminate = true;
var retryButton = panel.Get <ButtonWidget>("RETRY_BUTTON");
retryButton.IsVisible = () => false;
var cancelButton = panel.Get <ButtonWidget>("CANCEL_BUTTON");
var file = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
Action deleteTempFile = () =>
{
Log.Write("install", "Deleting temporary file " + file);
File.Delete(file);
};
Action <DownloadProgressChangedEventArgs> onDownloadProgress = i =>
{
var dataReceived = 0.0f;
var dataTotal = 0.0f;
var mag = 0;
var dataSuffix = "";
if (i.TotalBytesToReceive < 0)
{
mag = (int)Math.Log(i.BytesReceived, 1024);
dataReceived = i.BytesReceived / (float)(1L << (mag * 10));
dataSuffix = SizeSuffixes[mag];
getStatusText = () => "Downloading from {2} {0:0.00} {1}".F(dataReceived,
dataSuffix,
downloadHost ?? "unknown host");
progressBar.Indeterminate = true;
}
else
{
mag = (int)Math.Log(i.TotalBytesToReceive, 1024);
dataTotal = i.TotalBytesToReceive / (float)(1L << (mag * 10));
dataReceived = i.BytesReceived / (float)(1L << (mag * 10));
dataSuffix = SizeSuffixes[mag];
getStatusText = () => "Downloading from {4} {1:0.00}/{2:0.00} {3} ({0}%)".F(i.ProgressPercentage,
dataReceived, dataTotal, dataSuffix,
downloadHost ?? "unknown host");
progressBar.Indeterminate = false;
}
progressBar.Percentage = i.ProgressPercentage;
};
Action <string> onExtractProgress = s => Game.RunAfterTick(() => getStatusText = () => s);
Action <string> onError = s => Game.RunAfterTick(() =>
{
Log.Write("install", "Download failed: " + s);
progressBar.Indeterminate = false;
progressBar.Percentage = 100;
getStatusText = () => "Error: " + s;
retryButton.IsVisible = () => true;
cancelButton.OnClick = Ui.CloseWindow;
});
Action <AsyncCompletedEventArgs> onDownloadComplete = i =>
{
if (i.Cancelled)
{
deleteTempFile();
Game.RunAfterTick(Ui.CloseWindow);
return;
}
if (i.Error != null)
{
deleteTempFile();
onError(Download.FormatErrorMessage(i.Error));
return;
}
// Automatically extract
getStatusText = () => "Extracting...";
progressBar.Indeterminate = true;
var extracted = new List <string>();
try
{
using (var stream = File.OpenRead(file))
using (var z = ZipFileHelper.Create(stream))
{
foreach (var kv in download.Extract)
{
var entry = z.GetEntry(kv.Value);
if (entry == null || !entry.IsFile)
{
continue;
}
onExtractProgress("Extracting " + entry.Name);
Log.Write("install", "Extracting " + entry.Name);
var targetPath = Platform.ResolvePath(kv.Key);
Directory.CreateDirectory(Path.GetDirectoryName(targetPath));
extracted.Add(targetPath);
using (var zz = z.GetInputStream(entry))
using (var f = File.Create(targetPath))
zz.CopyTo(f);
}
z.Close();
}
Game.RunAfterTick(() => { Ui.CloseWindow(); onSuccess(); });
}
catch (Exception e)
{
Log.Write("install", "Archive extraction failed: " + e.ToString());
foreach (var f in extracted)
{
Log.Write("install", "Deleting " + f);
File.Delete(f);
}
onError("Archive extraction failed");
}
finally
{
deleteTempFile();
}
};
Action <string> downloadUrl = url =>
{
Log.Write("install", "Downloading " + url);
downloadHost = new Uri(url).Host;
var dl = new Download(url, file, onDownloadProgress, onDownloadComplete);
cancelButton.OnClick = dl.CancelAsync;
retryButton.OnClick = ShowDownloadDialog;
};
if (download.MirrorList != null)
{
Log.Write("install", "Fetching mirrors from " + download.MirrorList);
Action <DownloadDataCompletedEventArgs> onFetchMirrorsComplete = i =>
{
progressBar.Indeterminate = true;
if (i.Cancelled)
{
Game.RunAfterTick(Ui.CloseWindow);
return;
}
if (i.Error != null)
{
onError(Download.FormatErrorMessage(i.Error));
return;
}
try
{
var data = Encoding.UTF8.GetString(i.Result);
var mirrorList = data.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
downloadUrl(mirrorList.Random(new MersenneTwister()));
}
catch (Exception e)
{
Log.Write("install", "Mirror selection failed with error:");
Log.Write("install", e.ToString());
onError("Online mirror is not available. Please install from an original disc.");
}
};
var updateMirrors = new Download(download.MirrorList, onDownloadProgress, onFetchMirrorsComplete);
cancelButton.OnClick = updateMirrors.CancelAsync;
retryButton.OnClick = ShowDownloadDialog;
}
else
{
downloadUrl(download.URL);
}
}
