/* returns null if:
* - already logged in
* - database connection failed
* - database authentication failed
* - user data is null
* - username is null
*/
public string Login(string address, string username, string password, out ECode ec)
{
ec = ECode.None;
string token = null;
IUserPortalServerController_Callback callbackChannel
= OperationContext.Current.GetCallbackChannel <IUserPortalServerController_Callback>();
try
{
// Check credentials against database //
int id = DSConnection.AuthenticateCredentials(username, password);
if (id != -1) // valid
{
// Check if already logged in //
if (UserRegistry.IsPuidRegistered(username) == false)
{
// Log in User //
User user = DSConnection.GetUser(id);
UserSession session = new UserSession(username, address, USER_LIFESPAN, callbackChannel, user);
token = UserRegistry.RegisterClient(session);
Console.WriteLine("> New Login: @username:{" + username + "} token:{" + token + "}");
}
else
{ // Retrieve existing session token //
token = UserRegistry.GetToken(username);
((UserSession)UserRegistry.GetClientSession(token)).CallbackChannel = callbackChannel; // update callback channel
Console.WriteLine("> Old Login: @username:{" + username + "} token:{" + token + "}");
}
}
else
{
Console.WriteLine("> Failed Login: @username:{" + username + "}");
}
} catch (DataServerException ex) {
// occurs if any of the database queries fail
ec = ex.ErrorCode;
} catch (ArgumentNullException) {
// occurs if username or user data is null
ec = ECode.QueryError;
}
return(token);
}
public string RegisterGameServer(string address, string serverName, out ECode ec)
{
ec = ECode.None;
string token = null;
bool collision = false;
try
{
// Check for GameServer collisions //
collision = (GameRegistry.IsPuidRegistered(serverName)); // Check if already registered
if (collision == false)
{
// Check for server address collisions
foreach (KeyValuePair <string, ClientSession> kvp in GameRegistry)
{
if (collision == false) // If no collision detected, check for collision
{
collision = (kvp.Value.ClientAddress == address);
}
}
}
if (collision)
{
ec = ECode.QueryError;
Console.WriteLine("> GameServer registration collision: @ServerName:{" + serverName + "}");
}
else
{
IGamePortalServerController_Callback callbackChannel
= OperationContext.Current.GetCallbackChannel <IGamePortalServerController_Callback>();
GameSession session = new GameSession(serverName, address, GAME_LIFESPAN, callbackChannel);
token = GameRegistry.RegisterClient(session);
Console.WriteLine("> New GameServer registration: @ServerName:{" + serverName + "} token:{" + token + "}");
}
} catch (ArgumentNullException) {
// occurs if serverName or address is null
ec = ECode.QueryError;
}
return(token);
}