/// <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);
}
/// <summary>
/// Prints some debug info about a bin file.
/// </summary>
public static void PrintBinFile(BinFile binFile)
{
Console.WriteLine("Valid BinFile found (version={0}, size={1}, time={2})",
binFile.version,
binFile.size,
Helpers.convertUnixTimeMillisecondsToDateTime(binFile.time).ToString());
Console.WriteLine("File can be applied to type values: ");
binFile.typeValues.ForEach(v => Console.Write("{0} ", v));
Console.Write("\n");
var savedCrc = binFile.crc;
var calculatedCrc = ArchiveAppender.calculateCrc32(binFile.content);
var savedSha = Convert.ToBase64String(binFile.sha1);
var calculatedSha = Convert.ToBase64String(ArchiveAppender.calculateSha1(binFile.content));
Console.WriteLine("Hashes: CRC-32={0}, SHA-1={1}, Check={2}",
savedCrc,
savedSha,
binFile.check);
Console.WriteLine("Expected hashes: CRC-32={0}, SHA-1={1}, Check=3141592653",
calculatedCrc,
calculatedSha);
if (savedCrc != calculatedCrc)
{
Console.WriteLine("CRC ERROR!!!");
}
if (savedSha != calculatedSha)
{
Console.WriteLine("SHA1 ERROR!!!");
}
}
