private async Task DecryptPakAsync()
{
var dialog = new MessageDialog("This will permanently decrypt the pak file! Are you sure you want to do this?");
dialog.Commands.Add(new UICommand("Yes", null, "yes"));
dialog.Commands.Add(new UICommand("Cancel", null, "no"));
var choice = await dialog.ShowAsync();
if ((string)choice.Id == "yes")
{
await CurrentPak.DecryptAsync(EncryptionKey);
var flyout = new Flyout()
{
Content = new TextBlock {
Text = $"Pak decrypted!"
},
Placement = FlyoutPlacementMode.Bottom
};
flyout.ShowAt((FrameworkElement)Window.Current.Content);
// Reload browser.
Entries = await CurrentPak.GetEntriesAsync();
}
}
private async Task ExportFileAsync()
{
PakFileBrowserFileItem file = SelectedItems.First();
var picker = new FileSavePicker {
SuggestedFileName = file.DisplayName
};
picker.FileTypeChoices.Add($"{file.Extension} files", new List <string> {
file.Extension
});
var saveFile = await picker.PickSaveFileAsync();
if (saveFile != null)
{
Stream input;
if (EncryptionKey == null)
{
input = await CurrentPak.GetEntryStreamAsync(file.Metadata);
}
else
{
input = await CurrentPak.GetEntryStreamAsync(file.Metadata, EncryptionKey);
}
using (input)
using (var output = await saveFile.OpenStreamForWriteAsync())
{
await input.CopyToAsync(output);
}
var flyout = new Flyout()
{
Content = new TextBlock {
Text = $"File saved!"
},
Placement = FlyoutPlacementMode.Bottom
};
flyout.ShowAt((FrameworkElement)Window.Current.Content);
}
}
private async Task SwapFileAsync()
{
var metadata = SelectedItems.First().Metadata;
var picker = new FileOpenPicker();
picker.FileTypeFilter.Add("*");
var newFile = await picker.PickSingleFileAsync();
if (newFile != null)
{
using (var stream = await newFile.OpenStreamForReadAsync())
using (var bufferStream = new MemoryStream())
{
await stream.CopyToAsync(bufferStream);
if (bufferStream.Length > metadata.Size)
{
await new MessageDialog($"New file size is bigger than the original file! The new file size must be less than {metadata.Size} bytes.").ShowAsync();
return;
}
if (bufferStream.Length < metadata.Size)
{
long sizeDifference = metadata.Size - bufferStream.Length;
var swapPaddingDialog = new SwapPaddingDialog();
if (await swapPaddingDialog.ShowAsync() == ContentDialogResult.Primary)
{
byte padByte;
switch (swapPaddingDialog.FilePadding)
{
case FilePadding.NullBytes:
default:
padByte = 0x00;
break;
case FilePadding.Spaces:
padByte = (byte)' ';
break;
}
byte[] padding = new byte[sizeDifference];
Array.Fill(padding, padByte);
await bufferStream.WriteAsync(padding, 0, padding.Length);
}
}
await CurrentPak.SwapEntryAsync(metadata, bufferStream);
OnPropertyChanged(nameof(CurrentView));
var flyout = new Flyout()
{
Content = new TextBlock {
Text = $"File replaced!"
},
Placement = FlyoutPlacementMode.Bottom
};
flyout.ShowAt((FrameworkElement)Window.Current.Content);
}
}
}
