private static void Decrypt(string input, string output, IResourceCryptographyService crypto)
{
using (var outputFs = new FileStream(output, FileMode.Create))
using (var inputFs = new FileStream(input, FileMode.Open))
using (var cryptoFs = crypto.Read(inputFs))
{
cryptoFs.CopyTo(outputFs);
}
}
private GameResource GetArchivedResource(string path)
{
string original = path;
var encryptedExtension = GetConversionExtension(path);
do
{
path = Path.GetDirectoryName(path);
if (path.Length != 0)
{
string nonResPath = path;
path = path + ".res";
string resPath = path;
if (!string.IsNullOrWhiteSpace(_rootDir))
{
resPath = Path.Combine(_rootDir, path);
}
if (File.Exists(resPath))
{
var fileStream = new FileStream(resPath, FileMode.Open, FileAccess.Read, FileShare.Read);
var zipArchive = new ZipArchive(fileStream, ZipArchiveMode.Read);
var entryName = original.Substring(nonResPath.Length).TrimStart('/');
ZipArchiveEntry zipEntry;
if (encryptedExtension == null)
{
zipEntry = zipArchive.GetEntry(entryName);
return(new GameResource(original, zipEntry.Open(), zipArchive, fileStream));
}
else
{
zipEntry = zipArchive.GetEntry(Path.ChangeExtension(entryName, encryptedExtension));
if (zipEntry == null)
{
return(null);
}
var stream = zipEntry.Open();
var cryptoStream = _resourceCryptographyService.Read(stream);
return(new GameResource(original, cryptoStream, zipArchive, fileStream));
}
}
}
} while (!string.IsNullOrWhiteSpace(path));
return(null);
}