/// <summary>
/// Starts the Login Server listeners, and begins accepting new connections
/// </summary>
public static void StartServers()
{
// Make sure we arent already running!
if (isRunning)
{
return;
}
try
{
// Create debug log
LogWriter DebugLog = new LogWriter(Path.Combine(Program.RootPath, "Logs", "MasterServer_Debug.log"), true, 1);
// Start the DB Connection
Console.Write("Connecting to Mysql... ");
using (MasterDatabase Database = new MasterDatabase())
{
Console.Write("Success!" + Environment.NewLine);
}
// Create our end point to bind to
int port = Config.GetType <int>("Settings", "MasterServerUdpPort");
IPAddress address = IPAddress.Parse(Config.GetValue("Settings", "ServerBindIp"));
// Start Master Server, we write to console in the constructor because this
// is actually 2 servers in 1
Console.Write("<MSTR> Binding to UDP port {0}... ", port);
MstrServer = new MasterServer(new IPEndPoint(address, port), DebugLog);
Console.Write("Success!" + Environment.NewLine);
// Start the CDKey server
port = Config.GetType <int>("Settings", "CDKeyServerUdpPort");
Console.Write("<CDKY> Binding to UDP port {0}... ", port);
CDKeyServer = new CDKeyServer(new IPEndPoint(address, port), DebugLog);
Console.Write("Success!" + Environment.NewLine);
}
catch
{
Console.Write("Failed!" + Environment.NewLine);
throw;
}
// Let the client know we are ready for connections
isRunning = true;
}
/// <summary>
/// When a server connects, it needs to be validated. Once that happens, this
/// method is called, and it allows the server to bee seen in the Serverlist
/// </summary>
/// <param name="remote">The remote IP of the server</param>
private void ValidateServer(IPEndPoint remote)
{
string key = String.Format("{0}:{1}", remote.Address, remote.Port);
GameServer server;
// try to fetch the existing server
if (!Servers.TryGetValue(key, out server))
{
// If the key exists, then what gives?
if (Servers.ContainsKey(key) && !Servers.TryGetValue(key, out server))
{
Program.ErrorLog.Write("NOTICE: [MasterServer.ValidateServer] Unable to fetch a connected server.");
}
return;
}
// Server is valid
server.IsValidated = true;
server.LastRefreshed = DateTime.Now;
server.LastPing = DateTime.Now;
// Update or add the new server
if (Debugging)
{
DebugLog.Write("Adding Validated Server to Serverlist: " + key);
}
Servers.AddOrUpdate(key, server, (k, old) => { return(server); });
// Update the Dababase
try
{
using (MasterDatabase Driver = new MasterDatabase())
{
Driver.AddOrUpdateServer(server);
}
}
catch (Exception e)
{
Program.ErrorLog.Write("ERROR: [MasterDatabase.AddOrUpdateServer] " + e.Message);
}
}
/// <summary>
/// When a server connects, it needs to be validated. Once that happens, this
/// method is called, and it allows the server to bee seen in the Serverlist
/// </summary>
/// <param name="remote">The remote IP of the server</param>
private void ValidateServer(IPEndPoint remote)
{
string key = String.Format("{0}:{1}", remote.Address, remote.Port);
GameServer server;
// try to fetch the existing server, if its not here... we have bigger problems
if (!Servers.TryGetValue(key, out server))
{
Program.ErrorLog.Write("NOTICE: [MasterServer.ValidateServer] We encountered a strange error trying to fetch a connected server.");
return;
}
// Server is valid
server.IsValidated = true;
server.LastRefreshed = DateTime.Now;
server.LastPing = DateTime.Now;
// Update or add the new server
if (Debugging)
{
DebugLog.Write("Adding Validated Server to Serverlist: " + key);
}
Servers.AddOrUpdate(key, server, (k, old) => { return(server); });
// Update the Dababase
try
{
using (MasterDatabase Driver = new MasterDatabase())
{
Driver.AddOrUpdateServer(server);
}
}
catch (Exception e)
{
Program.ErrorLog.Write("ERROR: [MasterDatabase.AddOrUpdateServer] " + e.Message);
}
}
/// <summary>
/// Executed every 5 seconds or so... Removes all servers that haven't
/// reported in awhile
/// </summary>
protected void CheckServers()
{
// Create a list of servers to update in the database
List <GameServer> ServersToRemove = new List <GameServer>();
// Remove servers that havent talked to us in awhile from the server list
foreach (string key in Servers.Keys)
{
GameServer value;
if (Servers.TryGetValue(key, out value))
{
if (value.LastPing < DateTime.Now - TimeSpan.FromSeconds(ServerTTL))
{
if (Debugging)
{
DebugLog.Write("Removing Server for Expired Ping: " + key);
}
if (Servers.TryRemove(key, out value))
{
ServersToRemove.Add(value);
}
else
{
Program.ErrorLog.Write("ERROR: [MasterServer.CheckServers] Unable to remove server from server list: " + key);
}
}
}
}
// If we have no servers to update, return
if (ServersToRemove.Count == 0)
{
return;
}
// Update servers in database
try
{
// Wrap this all in a database transaction, as this will speed
// things up alot if there are alot of rows to update
using (MasterDatabase Driver = new MasterDatabase())
using (DbTransaction Transaction = Driver.BeginTransaction())
{
try
{
foreach (GameServer server in ServersToRemove)
{
Driver.UpdateServerOffline(server);
}
Transaction.Commit();
}
catch
{
Transaction.Rollback();
throw;
}
}
}
catch (Exception e)
{
Program.ErrorLog.Write("ERROR: [MasterDatabase.UpdateServerStatus] Unable to update servers status: " + e.Message);
}
}
/// <summary>
/// Executed every 60 seconds... Every 3rd ping, the BF2 server sends a full list
/// of data that describes its current state, and this method is used to parse that
/// data, and update the server in the Servers list
/// </summary>
/// <param name="remote">The servers remote address</param>
/// <param name="data">The data we must parse, sent by the server</param>
/// <returns>Returns whether or not the server needs to be validated, so it can be seen in the Server Browser</returns>
private bool ParseServerDetails(IPEndPoint remote, byte[] data)
{
// Format key
string key = String.Format("{0}:{1}", remote.Address, remote.Port);
// split by 000 (info/player separator) and 002 (players/teams separator)
// the players/teams separator is really 00, but because 00 may also be used elsewhere (an empty value for example), we hardcode it to 002
// the 2 is the size of the teams, for BF2 this is always 2.
string receivedData = Encoding.UTF8.GetString(data);
string[] sections = receivedData.Split(new string[] { "\x00\x00\x00", "\x00\x00\x02" }, StringSplitOptions.None);
if (sections.Length != 3 && !receivedData.EndsWith("\x00\x00"))
{
if (Debugging)
{
DebugLog.Write("Invalid Server Data Received From {0} :: {1}", key, sections[0]);
}
return(true); // true means we don't send back a response
}
// We only care about the server section
string serverVars = sections[0];
string[] serverVarsSplit = serverVars.Split(new string[] { "\x00" }, StringSplitOptions.None);
if (Debugging)
{
DebugLog.Write("Server Data Received From {0}", key);
for (int i = 0; i < sections.Length; i++)
{
DebugLog.Write(" DataString {0}: {1}", i, sections[i]);
}
}
// Start a new Server Object
GameServer server = new GameServer(remote);
List <Dictionary <string, object> > Rows = null;
// set the country based off ip address if its IPv4
server.country = (remote.Address.AddressFamily == AddressFamily.InterNetwork)
? GeoIP.GetCountryCode(remote.Address).ToUpperInvariant()
: "??";
// Try and Fetch server and provider from the database
try
{
using (MasterDatabase Driver = new MasterDatabase())
{
string q = "SELECT s.*, p.authorized, p.plasma FROM server AS s JOIN stats_provider AS p ON s.provider_id = p.id WHERE ip=@P0 AND queryport=@P1";
Rows = Driver.Query(q, remote.Address, remote.Port);
}
}
catch (Exception e)
{
Program.ErrorLog.Write("WARNING: [MasterServer.ParseServerDetails] " + e.Message);
}
// Set server vars
for (int i = 0; i < serverVarsSplit.Length - 1; i += 2)
{
// Fetch the property
PropertyInfo property = typeof(GameServer).GetProperty(serverVarsSplit[i]);
if (property == null)
{
continue;
}
else if (property.Name == "hostname")
{
// strip consecutive whitespace from hostname
property.SetValue(server, Regex.Replace(serverVarsSplit[i + 1], @"\s+", " ").Trim(), null);
}
else if (property.Name == "bf2_plasma")
{
// Does the server exist in the database?
if (Rows != null && Rows.Count > 0)
{
// For some damn reason, the driver is returning a bool instead of an integer?
if (Rows[0]["plasma"] is bool)
{
property.SetValue(server, Rows[0]["plasma"], null);
}
else
{
property.SetValue(server, Int32.Parse(Rows[0]["plasma"].ToString()) > 0, null);
}
}
else
{
property.SetValue(server, false, null);
}
}
else if (property.Name == "bf2_ranked")
{
// Does the server exist in the database?
if (Rows != null && Rows.Count > 0)
{
// For some damn reason, the driver is returning a bool instead of an integer?
if (Rows[0]["authorized"] is bool)
{
property.SetValue(server, Rows[0]["authorized"], null);
}
else
{
property.SetValue(server, Int32.Parse(Rows[0]["authorized"].ToString()) > 0, null);
}
}
else
{
property.SetValue(server, false, null);
}
}
else if (property.Name == "bf2_pure")
{
// we're always a pure server
property.SetValue(server, true, null);
}
else if (property.PropertyType == typeof(Boolean))
{
// parse string to bool (values come in as 1 or 0)
int value;
if (Int32.TryParse(serverVarsSplit[i + 1], NumberStyles.Integer, CultureInfo.InvariantCulture, out value))
{
property.SetValue(server, value != 0, null);
}
}
else if (property.PropertyType == typeof(Int32))
{
// parse string to int
int value;
if (Int32.TryParse(serverVarsSplit[i + 1], NumberStyles.Integer, CultureInfo.InvariantCulture, out value))
{
property.SetValue(server, value, null);
}
}
else if (property.PropertyType == typeof(Double))
{
// parse string to double
double value;
if (Double.TryParse(serverVarsSplit[i + 1], NumberStyles.Float, CultureInfo.InvariantCulture, out value))
{
property.SetValue(server, value, null);
}
}
else if (property.PropertyType == typeof(String))
{
// parse string to string
property.SetValue(server, serverVarsSplit[i + 1], null);
}
}
// you've got to have all these properties in order for your server to be valid
if (!String.IsNullOrWhiteSpace(server.hostname) &&
!String.IsNullOrWhiteSpace(server.gamevariant) &&
!String.IsNullOrWhiteSpace(server.gamever) &&
!String.IsNullOrWhiteSpace(server.gametype) &&
!String.IsNullOrWhiteSpace(server.mapname) &&
!String.IsNullOrWhiteSpace(server.gamename) &&
server.gamename.Equals("battlefield2", StringComparison.InvariantCultureIgnoreCase) &&
server.hostport > 1024 && server.hostport <= UInt16.MaxValue &&
server.maxplayers > 0)
{
// Determine if we need to send a challenge key to the server for validation
bool IsValidated = Servers.ContainsKey(key) && Servers[key].IsValidated;
if (Debugging)
{
DebugLog.Write("Server Data Parsed Successfully... Needs Validated: " + ((IsValidated) ? "false" : "true"));
}
// Add / Update Server
server.IsValidated = IsValidated;
server.LastPing = DateTime.Now;
server.LastRefreshed = DateTime.Now;
Servers.AddOrUpdate(key, server, (k, old) => { return(server); });
// Tell the requester if we are good to go
return(IsValidated);
}
// If we are here, the server information is invalid. Return true to ignore server
return(true);
}
