public CompressedDataOpenPgpPacket(OpenPgpPacketHeader header, Stream inputStream) : base(header, inputStream)
{
int compressionAlgorithmId = inputStream.ReadByte();
CompressionAlgorithm = OpenPgpCompressionAlgorithm.GetCompressionAlgorithmById(compressionAlgorithmId);
var decompressionStream = CompressionAlgorithm.Decompress(inputStream) as DeflateStream;
DecompressedStream = new MemoryStream();
decompressionStream.CopyTo(DecompressedStream);
DecompressedStream.Position = 0;
}
private void ReadCompressedBlock(Stream inputStream)
{
var numBytesRead = inputStream.Read(CompressedBlock, 0, Header.NumCompressedBytes);
if (numBytesRead != Header.NumCompressedBytes)
{
throw new IOException($"Expected {Header.NumCompressedBytes} bytes from the block, but received only {numBytesRead} bytes.");
}
int numUncompressedBytes = CompressionAlgorithm.Decompress(CompressedBlock, Header.NumCompressedBytes, UncompressedBlock, UncompressedBlock.Length);
if (numUncompressedBytes != Header.NumUncompressedBytes)
{
throw new CompressionException($"Expected {Header.NumUncompressedBytes} bytes after decompression, but found only {numUncompressedBytes} bytes.");
}
}
