| public static Log ( string message ) : void | ||
| message | string | The message to be written to the log file |
| return | void | |
/// <summary>
/// Event called when a complete message has been recieved
/// </summary>
/// <param name="Message"></param>
private void Stream_DataReceived(string message)
{
// Read client message, and parse it into key value pairs
string[] recieved = message.TrimStart('\\').Split('\\');
switch (recieved[0])
{
case "newuser":
CreateNewUser(ConvertToKeyValue(recieved));
break;
case "login":
ProcessLogin(ConvertToKeyValue(recieved));
break;
case "getprofile":
SendProfile();
break;
case "updatepro":
UpdateUser(ConvertToKeyValue(recieved));
break;
case "logout":
Disconnect(0);
break;
default:
Stream.SendAsync(@"\error\\err\0\fatal\\errmsg\Invalid Query!\id\1\final\");
GpcmServer.Log("NOTICE: [GpcmClient.Stream_DataReceived] Unkown Message Passed: {0}", message);
break;
}
}
/// <summary>
/// Whenever the "newuser" command is recieved, this method is called to
/// add the new users information into the database
/// </summary>
/// <param name="Recv">Array of parms sent by the server</param>
private void CreateNewUser(Dictionary <string, string> Recv)
{
// Make sure the user doesnt exist already
try
{
using (GamespyDatabase Database = new GamespyDatabase())
{
// Check to see if user exists
if (Database.UserExists(Recv["nick"]))
{
Stream.SendAsync(@"\error\\err\516\fatal\\errmsg\This account name is already in use!\id\1\final\");
Disconnect(5);
return;
}
// We need to decode the Gamespy specific encoding for the password
string Password = GamespyUtils.DecodePassword(Recv["passwordenc"]);
string Cc = (RemoteEndPoint.AddressFamily == AddressFamily.InterNetwork)
? Ip2nation.GetCountryCode(RemoteEndPoint.Address)
: Program.Config.ASP_LocalIpCountryCode;
// Attempt to create account. If Pid is 0, then we couldnt create the account
if ((PlayerId = Database.CreateUser(Recv["nick"], Password, Recv["email"], Cc)) == 0)
{
Stream.SendAsync(@"\error\\err\516\fatal\\errmsg\Error creating account!\id\1\final\");
Disconnect(6);
return;
}
Stream.SendAsync(@"\nur\\userid\{0}\profileid\{0}\id\1\final\", PlayerId);
}
}
catch (Exception e)
{
// Check for invalid query params
if (e is KeyNotFoundException)
{
Stream.SendAsync(@"\error\\err\0\fatal\\errmsg\Invalid Query!\id\1\final\");
}
else
{
Stream.SendAsync(@"\error\\err\516\fatal\\errmsg\Error creating account!\id\1\final\");
GpcmServer.Log("ERROR: [Gpcm.CreateNewUser] An error occured while trying to create a new User account :: " + e.Message);
}
Disconnect(7);
return;
}
}
/// <summary>
/// Logs the client out of the game client, and closes the stream
/// </summary>
/// <param name="code">
/// The disconnect code. If set to 9, the OnDisconect event will not be called, the database
/// will not be updated to reset everyone's session code, and the EventArgs objects will NOT
/// be returned to the IO pool. You should only set to 9 for a planned server shutdown.
/// </param>
/// <remarks>
/// Codes:
/// 0 => Client sends the "logout" command
/// 1 => The login timer elapsed and the client wasnt logged in or this object was disposed, forcefully disconnected
/// 2 => Invalid login query, or username was incorrect
/// 3 => Incorrect Password
/// 4 => An error occured while trying to login the client (could be database related)
/// 5 => Cant create account, username exists already
/// 6 => Error Creating new account in database
/// 7 => Invalid query for account creation, or an exception was thrown while trying to create account
/// 8 => Remote Connection closed the Stream or was un-readchable
/// 9 => Forced server shutdown [No events called, database sessions are not updated, and EventArgs are disposed]
/// </remarks>
public void Disconnect(int code)
{
// Make sure we arent disposed
if (Disposed)
{
return;
}
// Update database session
if (Status == LoginStatus.Completed && code < 9)
{
try
{
using (GamespyDatabase Database = new GamespyDatabase())
Database.Execute("UPDATE accounts SET session=0 WHERE id=" + PlayerId);
}
catch
{
// We could be shutting this server down because of DB connection issues, don't do anything here.
}
}
// Unregister for stream events and close the connection
Stream.OnDisconnect -= Stream_OnDisconnect;
Stream.DataReceived -= Stream_DataReceived;
Stream.Close(code == 9);
// Set status and log
if (code == 1 && Status == LoginStatus.Processing)
{
GpcmServer.Log("Login Timeout: {0} - {1} - {2}", PlayerNick, PlayerId, RemoteEndPoint);
}
else if (Status != LoginStatus.Disconnected)
{
GpcmServer.Log("Client Logout: {0} - {1} - {2}, Code={3}", PlayerNick, PlayerId, RemoteEndPoint, code);
}
// Preapare to be unloaded from memory
Status = LoginStatus.Disconnected;
Disposed = true;
// Call disconnect event
if (OnDisconnect != null)
{
OnDisconnect(this);
}
}
/// <summary>
/// This method verifies the login information sent by
/// the client, and returns encrypted data for the client
/// to verify as well
/// </summary>
public void ProcessLogin(Dictionary <string, string> Recv)
{
// Make sure we have all the required data to process this login
if (!Recv.ContainsKey("uniquenick") || !Recv.ContainsKey("challenge") || !Recv.ContainsKey("response"))
{
Stream.SendAsync(@"\error\\err\0\fatal\\errmsg\Invalid Query!\id\1\final\");
Disconnect(2);
return;
}
// Warp this in a try/catch, incase database is offline or something
try
{
using (GamespyDatabase Conn = new GamespyDatabase())
{
// Try and fetch the user from the database
Dictionary <string, object> User = Conn.GetUser(Recv["uniquenick"]);
if (User == null)
{
Stream.SendAsync(@"\error\\err\265\fatal\\errmsg\The uniquenick provided is incorrect!\id\1\final\");
Disconnect(2);
return;
}
// Set player variables
PlayerId = Int32.Parse(User["id"].ToString());
PlayerNick = Recv["uniquenick"];
PlayerEmail = User["email"].ToString();
PlayerCountryCode = User["country"].ToString();
PasswordHash = User["password"].ToString();
// Use the GenerateProof method to compare with the "response" value. This validates the given password
if (Recv["response"] == GenerateProof(Recv["challenge"], ServerChallengeKey))
{
// Password is correct, Create session key and respond
SessionKey = Crc.ComputeChecksum(PlayerNick);
Stream.SendAsync(
@"\lc\2\sesskey\{0}\proof\{1}\userid\{2}\profileid\{2}\uniquenick\{3}\lt\{4}__\id\1\final\",
SessionKey,
GenerateProof(ServerChallengeKey, Recv["challenge"]), // Do this again, Params are reversed!
PlayerId,
PlayerNick,
GenerateRandomString(22) // Generate LT whatever that is (some sort of random string, 22 chars long)
);
// Log, Update database, and call event
GpcmServer.Log("Client Login: {0} - {1} - {2}", PlayerNick, PlayerId, RemoteEndPoint);
Conn.Execute("UPDATE accounts SET lastip=@P0, session=@P1 WHERE id=@P2", RemoteEndPoint.Address, SessionKey, PlayerId);
// Update status last, and call success login
Status = LoginStatus.Completed;
if (OnSuccessfulLogin != null)
{
OnSuccessfulLogin(this);
}
}
else
{
// The proof string failed, so the password provided was incorrect
GpcmServer.Log("Failed Login Attempt: {0} - {1} - {2}", PlayerNick, PlayerId, RemoteEndPoint);
Stream.SendAsync(@"\error\\err\260\fatal\\errmsg\The password provided is incorrect.\id\1\final\");
Disconnect(3);
}
}
}
catch
{
Disconnect(4);
return;
}
}