public static void sendHelloMessage(RemoteEndpoint endpoint, bool sendHelloData, byte[] challenge_response)
{
using (MemoryStream m = new MemoryStream())
{
using (BinaryWriter writer = new BinaryWriter(m))
{
string publicHostname = string.Format("{0}:{1}", Config.publicServerIP, Config.serverPort);
// Send the node version
writer.Write(CoreConfig.protocolVersion);
// Send the public node address
byte[] address = Node.walletStorage.getPrimaryAddress();
writer.Write(address.Length);
writer.Write(address);
// Send the testnet designator
writer.Write(Config.isTestNet);
char node_type = Node.getNodeType();
writer.Write(node_type);
// Send the version
writer.Write(Config.version);
// Send the node device id
writer.Write(Config.device_id);
// Send the wallet public key
writer.Write(Node.walletStorage.getPrimaryPublicKey().Length);
writer.Write(Node.walletStorage.getPrimaryPublicKey());
// Send listening port
writer.Write(Config.serverPort);
// Send timestamp
long timestamp = Core.getCurrentTimestamp();
writer.Write(timestamp);
// send signature
byte[] signature = CryptoManager.lib.getSignature(Encoding.UTF8.GetBytes(CoreConfig.ixianChecksumLockString + "-" + Config.device_id + "-" + timestamp + "-" + publicHostname), Node.walletStorage.getPrimaryPrivateKey());
writer.Write(signature.Length);
writer.Write(signature);
if (sendHelloData)
{
Block block = Node.getLastBlock();
if (block == null)
{
Logging.warn("Clients are connecting, but we have no blocks yet to send them!");
return;
}
ulong lastBlock = block.blockNum;
writer.Write(lastBlock);
writer.Write(block.blockChecksum.Length);
writer.Write(block.blockChecksum);
writer.Write(block.walletStateChecksum.Length);
writer.Write(block.walletStateChecksum);
writer.Write(Node.getRequiredConsensus());
writer.Write(block.version);
// Write the legacy level
writer.Write(Legacy.getLegacyLevel());
writer.Write(challenge_response.Length);
writer.Write(challenge_response);
endpoint.sendData(ProtocolMessageCode.helloData, m.ToArray());
}
else
{
List <byte> challenge = new List <byte>();
challenge.AddRange(Node.walletStorage.getPrimaryAddress());
Random rnd = new Random();
challenge.AddRange(BitConverter.GetBytes(rnd.Next(20000)));
byte[] challenge_bytes = challenge.ToArray();
endpoint.challenge = challenge_bytes;
writer.Write(challenge_bytes.Length);
writer.Write(challenge_bytes);
endpoint.sendData(ProtocolMessageCode.hello, m.ToArray());
}
}
}
}
