public static void Alive(byte[] data, IPEndPoint ip, Server server)
{
string message = "";
BasicReqPacket aPacket = Packet.Unpack <BasicReqPacket>(data);
server.DebugInfo("Alive inf recieved.");
server.DebugInfo("AliveInf Packet: " + aPacket.ToString());
ClientStatus current = server.GetClient(aPacket.Username);
if (ClientsManagement.CheckBasics(current, ClientStatus.Status.Disconnected, aPacket.Alea, out message))
{
// Save the last alive
current.LastAlive = DateTime.Now;
// Send ack
server.Udp.SendMessage(new AckErrorPacket(PacketTypes.AliveAck, "Alive correct").Pack(), ip);
}
else
{
server.DebugInfo("Alive: Incorrect alive from " + aPacket.Username);
server.DebugInfo(aPacket.Username + " now is disconnected.");
if (server.ClientsOnChat.Any(d => d.Key == current.Client.Username))
{
server.ClientsOnChat.Remove(current.Client.Username);
}
// Disconnect the client
current.Disconnect();
// Send error
server.Udp.SendError(message, ip);
}
}
public static void Logout(byte[] data, IPEndPoint ip, Server server)
{
string message = "";
BasicReqPacket logoutPacket = Packet.Unpack <BasicReqPacket>(data);
server.DebugInfo("Logut request recieved.");
server.DebugInfo("LogoutReq Packet: " + logoutPacket.ToString());
ClientStatus current = server.GetClient(logoutPacket.Username);
if (ClientsManagement.CheckBasics(current, ClientStatus.Status.Disconnected, logoutPacket.Alea, out message))
{
server.DebugInfo("Logout: Correct logut from " + logoutPacket.Username);
server.DebugInfo(logoutPacket.Username + " now is disconnected.");
if (server.ClientsOnChat.Any(d => d.Key == current.Client.Username))
{
server.ClientsOnChat.Remove(current.Client.Username);
}
current.Disconnect();
// Return ack
server.Udp.SendMessage(new AckErrorPacket(PacketTypes.LogoutAck, "Logged out correctly.").Pack(), ip);
}
else
{
server.DebugInfo("Logout: Incorrect logut.");
// Send error
message = "Logout error: " + message;
server.Udp.SendError(message, ip);
}
}
public static void DeleteAccount(byte[] data, IPEndPoint ip, Server server)
{
string message = "";
BasicReqPacket delPacket = Packet.Unpack <BasicReqPacket>(data);
server.DebugInfo("Delete account request recieved.");
server.DebugInfo("DeleteAccountReq Packet: " + delPacket.ToString());
ClientStatus current = server.GetClient(delPacket.Username);
if (ClientsManagement.CheckBasics(current, ClientStatus.Status.Disconnected, delPacket.Alea, out message))
{
server.DebugInfo("Delete Account: Account was " + delPacket.Username + " correctly deleted.");
// Send the ack first
server.Udp.SendMessage(new AckErrorPacket(PacketTypes.DeleteAccountAck, "Account deleted correctly.").Pack(), ip);
// Delete client from database
server.DeleteCLientFromDataBase(delPacket.Username);
}
else
{
server.DebugInfo("Delete account: Acount can't be deleted.");
// Send error
message = "Delete error: " + message;
server.Udp.SendError(message, ip);
}
}
public static void ReadyChatClient(byte[] data, TcpClient client, Server server)
{
string message = "";
// Unpack the data
BasicReqPacket packet = Packet.Unpack <BasicReqPacket>(data);
// Get the client who is requesting
ClientStatus c = server.GetClient(packet.Username);
// Check the basics
if (ClientsManagement.CheckBasics(c, ClientStatus.Status.Disconnected, packet.Alea, out message))
{
// Add client to dicctionary with his respective tcpclient
server.ClientsOnChat.Add(c.Client.Username, client);
server.DebugInfo("Client Ready for chat: " + c.Client.Username + " is ready for chatting.");
// Send ack
server.Tcp.SendMessage(new AckErrorPacket(PacketTypes.ReadyChatAck, "Now you are ready for chat").Pack(), client);
}
else
{
server.DebugInfo("Client Ready for chat error: " + message);
server.Tcp.SendError(message, client);
}
}
public static void SendMessage(byte[] data, TcpClient client, Server server)
{
try
{
string message = "";
// Unpack the data
MessagePacket packet = Packet.Unpack <MessagePacket>(data);
server.DebugInfo("SendMessageReq Recieved: " + packet.ToString());
// Who is making the query
ClientStatus c = server.GetClient(packet.From.Username);
// Check te basics again and again
if (ClientsManagement.CheckBasics(c, ClientStatus.Status.Disconnected, packet.Alea, out message))
{
// Check if destination exists
if (!server.Clients.Any(d => d.Client.Username == packet.To.Username))
{
server.DebugInfo("Send Message Error: " + "Destination doesn't exist");
server.Tcp.SendError("Destination doesn't exist", client);
return;
}
// Store the message on database
using (var db = new Models.ServerDatabase())
{
// Create the message
Models.Message m = new Models.Message()
{
From = db.Clients.Single(n => n.Username == c.Client.Username),
To = db.Clients.Single(n => n.Username == packet.To.Username),
Date = packet.Date,
Content = packet.Content
};
// Check if destination is on chat
if (server.ClientsOnChat.Any(d => d.Key.Equals(packet.To.Username)))
{
// If exist save the message and send him as well as readed message
m.Read = true;
server.DebugInfo("Message from : " + packet.From.Username + " sended to: " + packet.To.Username);
// Send the message to destination changing the type of package
packet.Type = (byte)PacketTypes.SendMessageAck;
server.Tcp.SendMessage(packet.Pack(), server.ClientsOnChat[packet.To.Username]);
}
else
{
m.Read = false;
}
db.Messages.InsertOnSubmit(m);
db.SubmitChanges();
}
}
else
{
server.DebugInfo("Send Message Error: " + message);
server.Tcp.SendError(message, client);
}
}
catch (SqlException)
{
server.DebugInfo("Send Message Error: database error.");
server.Tcp.SendError("Database error", client);
}
}