| public static GenerateHash ( byte data ) : byte[] | ||
| data | byte | |
| return | byte[] | |
void DisptachPacket(byte[] packet)
{
MemoryStream stream = new MemoryStream(packet);
BinaryReader br = new BinaryReader(stream);
uint magic = br.ReadUInt32();
string packetID = Program.ReadString(br, 12);
uint length = br.ReadUInt32();
uint checksum = br.ReadUInt32();
if (magic == cMainNetwork)
{
byte[] payload = br.ReadBytes((int)length);
byte[] hash = Program.GenerateHash(payload);
if (CompareChecksum(checksum, hash))
{
// valid packet, get the handler
if (mPacketProcessors.ContainsKey(packetID))
{
PacketProcessor p = mPacketProcessors[packetID];
p(payload);
}
else
{
Console.WriteLine("Unhandled packet: " + packetID);
}
}
}
br.Close();
}
public void LoadTransaction(byte[] data)
{
byte[] hash = Program.GenerateHash(data);
string hashStr = Program.HashToString(hash);
if (mTransactions.ContainsKey(hashStr))
{
Transaction t = mTransactions[hashStr];
t.Load(data);
}
else
{
Console.WriteLine("Unknown transaction");
}
}
void SendPacket(string packetID, byte[] payload)
{
byte[] hash = Program.GenerateHash(payload);
MemoryStream stream = new MemoryStream();
BinaryWriter w = new BinaryWriter(stream);
w.Write(cMainNetwork);
for (int i = 0; i < 12; i++)
{
if (i < packetID.Length)
{
w.Write((byte)packetID[i]);
}
else
{
w.Write((byte)0);
}
}
// Payload len
w.Write(payload.Length);
// Checksum
w.Write(hash[0]);
w.Write(hash[1]);
w.Write(hash[2]);
w.Write(hash[3]);
w.Write(payload);
byte[] packetData = stream.ToArray();
/*
* Console.WriteLine("Send Packet - " + packetID);
* for (int i = 0; i < packetData.Length; i++)
* {
* Console.Write("{0:X2} ", packetData[i]);
* if (i > 0 && ((i + 1) % 16) == 0)
* Console.Write("\n");
* }
* Console.Write("\n");
*/
mSocket.Send(packetData);
w.Close();
}