public static void TestArchive(string filename, byte[] key = null)
{
// Prepare our encryption object, if we have a key.
BinFileCrypter binFileCrypter = null;
if (key != null)
{
binFileCrypter = new BinFileCrypter(key);
}
// Start reading the file!
using (var fileStream = File.OpenRead(filename))
{
Console.WriteLine("Loading and parsing {0} (size={1})", filename, fileStream.Length);
var binArchive = Serializer.Deserialize <BinArchive>(fileStream);
Console.WriteLine("Completed bin-archive parse, contains {0} normal files and {1} crypted files.", binArchive.binFiles.Count, binArchive.cryptedBinFiles.Count);
Console.WriteLine("Version={0}", binArchive.version);
Console.WriteLine("Time={0}", Helpers.convertUnixTimeMillisecondsToDateTime(binArchive.time).ToString());
Console.WriteLine("");
foreach (var binFile in binArchive.binFiles)
{
PrintBinFile(binFile);
}
foreach (var cryptedBinFile in binArchive.cryptedBinFiles)
{
Console.WriteLine("Found crypted file (restrictToValue={0}, IV={1}, size={2}), trying to decrypt...",
cryptedBinFile.restrictToValue,
Convert.ToBase64String(cryptedBinFile.aesInitializationVector),
cryptedBinFile.cryptedBinFile.Length);
if (binFileCrypter != null)
{
var binFile = binFileCrypter.Decrypt(cryptedBinFile);
if (binFile != null)
{
PrintBinFile(binFile);
}
else
{
Console.WriteLine("Failed to decrypt.");
}
}
else
{
Console.WriteLine("Decrypt failed: No valid -k supplied, ");
}
}
}
}
/// <summary>
/// Appends the file with the properties that you configured on this object.
/// It will be encrypted if you have set the Key propertie.
/// </summary>
/// <returns>True when all went ok, false when something failed for some reason.</returns>
public bool Append()
{
if (this.binArchive != null)
{
var binFile = new BinFile()
{
version = this.Version,
content = File.ReadAllBytes(this.Filename) // TODO: Will this always fit in memory? For now we just use very simple and small files.
};
// Unfortunate we can't everything into the object initialiser:
binFile.typeValues.AddRange(this.TypeValues);
binFile.size = (uint)binFile.content.Length;
// Calculate the checksum in a proper way for our file data. We now that we should place 20 bytes into our test file!
binFile.check = 3141592653;
binFile.crc = calculateCrc32(binFile.content);
binFile.sha1 = calculateSha1(binFile.content); // Should always be 20 bytes...
binFile.time = Helpers.convertToUnixTimeMilliseconds(File.GetCreationTimeUtc(this.Filename));
// Now add the binFile!
if (this.Key == null)
{
this.binArchive.binFiles.Add(binFile);
}
else
{
// Encrypt it when a key was given!
var binFileCrypter = new BinFileCrypter(this.Key);
var cryptedBinFile = binFileCrypter.convert(binFile, this.RestrictToValue);
this.binArchive.cryptedBinFiles.Add(cryptedBinFile);
}
// Also increase our append call, so that we know that we need to finish it really at the end.
this.appendCall++;
}
else
{
throw new InvalidOperationException("Trying to call Append() without calling Prepare() first!");
}
return(true);
}