public byte[] PackPacketToBytes(IPirateXPackage requestPackage)
{
if (requestPackage == null)
{
return(null);
}
var headerbytes = requestPackage.HeaderBytes;
var contentbytes = requestPackage.ContentBytes;
//信息头压缩
headerbytes = ZipEnable ? Zip.Compress(headerbytes) : headerbytes;
//数据体压缩
contentbytes = ZipEnable ? Zip.Compress(contentbytes) : contentbytes;
//8位, 每一位是一个加密标记位，1表示启用
for (byte i = 0; i < 8; i++)
{
if (CryptoByte.GetBit(i))
{
var crypto = CryptoFactory.GetCrypto(i);
if (crypto != null)
{
//信息头加密
headerbytes = crypto.Encode(headerbytes, PackKeys);
//数据体加密
if (contentbytes == null)
{
contentbytes = new byte[0];
}
else
{
contentbytes = crypto.Encode(contentbytes, PackKeys);
}
}
}
}
var zipByte = new byte[1];
zipByte[0] = ZipEnable ? (byte)Math.Pow(2, 7) : (byte)0;
var headerLen = headerbytes.Length;
var contentLen = contentbytes?.Length ?? 0;
using (var stream = new MemoryStream())
{
stream.Write(BitConverter.GetBytes(4 + 1 + 1 + 4 + headerLen + contentLen), 0, 4);
stream.Write(zipByte, 0, 1);
stream.Write(new[] { CryptoByte }, 0, 1);
stream.Write(BitConverter.GetBytes(headerLen), 0, 4);
stream.Write(headerbytes, 0, headerLen);
if (contentbytes != null)
{
stream.Write(contentbytes, 0, contentLen);
}
return(stream.ToArray());
}
}
public IPirateXPackage UnPackToPacket(byte[] datas)
{
byte[] headerBytes = null;
byte[] contentBytes = null;
var zipBit = new byte[1];
var cryptoBit = new byte[1];
using (var stream = new MemoryStream(datas))
{
var lenBytes = new byte[4];
var headerLenBytes = new byte[4];
stream.Read(lenBytes, 0, 4); //数据整体长度
stream.Read(zipBit, 0, 1); //压缩标记位
stream.Read(cryptoBit, 0, 1); //加密标记位
stream.Read(headerLenBytes, 0, 4); //信息头长度
var len = BitConverter.ToInt32(lenBytes, 0);
var headerLen = BitConverter.ToInt32(headerLenBytes, 0);
headerBytes = new byte[headerLen];
contentBytes = new byte[len - 4 - 1 - 1 - 4 - headerLen];
stream.Read(headerBytes, 0, headerLen);
stream.Read(contentBytes, 0, len - 4 - 1 - 1 - 4 - headerLen);
}
//8位, 每一位是一个加密标记位，1表示启用
for (byte i = 0; i < 8; i++)
{
if (cryptoBit[0].GetBit(i))
{
var crypto = CryptoFactory.GetCrypto(i);
if (crypto != null)
{
headerBytes = crypto.Decode(headerBytes, UnPackKeys);
contentBytes = crypto.Decode(contentBytes, UnPackKeys);
}
}
}
var zipenable = zipBit[0].GetBit(7);
if (zipenable)
{
headerBytes = Zip.Decompress(headerBytes);
contentBytes = Zip.Decompress(contentBytes);
}
return(new PirateXResponsePackage()
{
HeaderBytes = headerBytes,
ContentBytes = contentBytes
});
}