public void Receive(TcpClient client)
{
while (listening)
{
BlockChain newChain = JsonConvert.DeserializeObject <BlockChain>(Chat.Recieve(client));
if (newChain.IsValid() && newChain.Chain.Count > Program.Blockchain.Chain.Count)
{
List <Transaction> newTransactions = new List <Transaction>();
newTransactions.AddRange(newChain.PendingTransactions);
newTransactions.AddRange(Program.Blockchain.PendingTransactions);
newChain.PendingTransactions = newTransactions;
newChain.PrintExtends(Program.Blockchain);
Program.Blockchain = newChain;
}
}
}
public void FinishHandshake(TcpClient client)
{
string key = ToString(client.Client.RemoteEndPoint);
if (!_wsDict.ContainsKey(key))
{
string recieved = Chat.Recieve(client);
if (recieved == "HISERVER")
{
Chat.PrintLog("Recieved handshake request!");
Chat.Send(client, "HICLIENT");
}
recieved = Chat.Recieve(client);
BlockChain newChain = JsonConvert.DeserializeObject <BlockChain>(recieved);
if (newChain.IsValid() && newChain.Chain.Count > Program.Blockchain.Chain.Count)
{
List <Transaction> newTransactions = new List <Transaction>();
newTransactions.AddRange(newChain.PendingTransactions);
newTransactions.AddRange(Program.Blockchain.PendingTransactions);
newChain.PendingTransactions = newTransactions;
newChain.PrintExtends(Program.Blockchain);
Program.Blockchain = newChain;
Chat.Send(client, "GOODCHAIN");
}
else
{
Chat.Send(client, JsonConvert.SerializeObject(Program.Blockchain));
}
_wsDict.Add(key, client);
Task.Run(() => Receive(client));
}
}
public void InitiateHandshake(string address, int port)
{
if (!_wsDict.ContainsKey(address + port))
{
Chat.PrintLog("Connecting to node...");
TcpClient client = new TcpClient(address, port);
Chat.PrintLog("Sending handshake to node...");
Chat.Send(client, "HISERVER");
if (Chat.Recieve(client) != "HICLIENT")
{
Chat.PrintLog("Unable to recieve handshake from node.");
return;
}
Chat.PrintLog("Recieved handshake from node!");
Chat.Send(client, JsonConvert.SerializeObject(Program.Blockchain));
string retval = Chat.Recieve(client);
if (retval != "GOODCHAIN")
{
BlockChain newChain = JsonConvert.DeserializeObject <BlockChain>(retval);
if (newChain.IsValid() && newChain.Chain.Count > Program.Blockchain.Chain.Count)
{
List <Transaction> newTransactions = new List <Transaction>();
newTransactions.AddRange(newChain.PendingTransactions);
newTransactions.AddRange(Program.Blockchain.PendingTransactions);
newChain.PendingTransactions = newTransactions;
Program.Blockchain = newChain;
}
}
_wsDict.Add(ToString(client.Client.RemoteEndPoint), client);
Task.Run(() => Receive(client));
}
}