// Remove player from the list, and notify remaining players
public void UnregisterPlayer(Player player)
{
if (player == null)
{
log.Log("World.UnregisterPlayer: Trying to unregister a non-existent (null) player.", LogType.Debug);
return;
}
lock ( playerListLock ) {
if (players[player.id] == player)
{
log.Log("{0} left the server.", LogType.UserActivity, player.name);
db.ProcessLogout(player);
db.Save();
players[player.id] = null;
playerCount--;
SendToAll(PacketWriter.MakeRemoveEntity(player.id), null);
SendToAll(PacketWriter.MakeMessage(Color.Sys + player.name + " left the server."), null);
UpdatePlayerList();
}
else
{
log.Log("World.UnregisterPlayer: Trying to unregister a non-existent (unknown id) player.", LogType.Warning);
}
}
}
void Freeze(Player player, Command cmd)
{
if (player.Can(Permissions.Freeze))
{
string name = cmd.Next();
Player target = world.FindPlayer(name);
if (target != null)
{
if (!target.isFrozen)
{
world.SendToAll(PacketWriter.MakeMessage(Color.Yellow + target.name + " has been frozen by " + player.name), null);
target.isFrozen = true;
}
else
{
player.Message(target.name + " is already frozen.");
}
}
else
{
world.NoPlayerMessage(player, name);
}
}
else
{
world.NoAccessMessage(player);
}
}
void Roll(Player player, Command cmd)
{
Random rand = new Random();
int min = 1, max = 100, num, t1, t2;
if (cmd.NextInt(out t1))
{
if (cmd.NextInt(out t2))
{
if (t2 >= t1)
{
min = t1;
max = t2;
}
}
else if (t1 >= 1)
{
max = t1;
}
}
num = rand.Next(min, max + 1);
string msg = Color.Silver + player.name + " rolled " + num + " (" + min + "..." + max + ")";
world.log.LogConsole(msg);
world.SendToAll(PacketWriter.MakeMessage(msg), null);
}
void Unfreeze(Player player, Command cmd)
{
if (player.Can(Permissions.Freeze))
{
string name = cmd.Next();
Player target = world.FindPlayer(name);
if (target != null)
{
if (target.isFrozen)
{
world.SendToAll(PacketWriter.MakeMessage(Color.Yellow + target.name + " is no longer frozen."), null);
target.isFrozen = false;
}
else
{
player.Message(target.name + " is currently not frozen.");
}
}
else
{
world.NoPlayerMessage(player, name);
}
}
else
{
world.NoAccessMessage(player);
}
}
void Unlock(Player player, Command cmd)
{
if (!player.Can(Permissions.Lock))
{
world.NoAccessMessage(player);
return;
}
world.SendToAll(PacketWriter.MakeMessage(Color.Red + "Lockdown has ended."), null);
world.EndLockDown();
}
void Lock(Player player, Command cmd)
{
if (!player.Can(Permissions.Lock))
{
world.NoAccessMessage(player);
return;
}
world.SendToAll(PacketWriter.MakeMessage(Color.Red + "Server is now on lockdown!"), null);
world.BeginLockDown();
}
// Queues a system message
public void Message(string message)
{
if (session == null)
{
world.log.LogConsole(message);
}
else
{
Send(PacketWriter.MakeMessage(Color.Sys + message));
}
}
// Queues a system message with a custom color
public void Message(string color, string message)
{
if (session == null)
{
world.log.LogConsole(message);
}
else
{
session.Send(PacketWriter.MakeMessage(color + message));
}
}
public void ProcessUpdates()
{
int packetsSent = 0;
int maxPacketsPerUpdate = world.server.CalculateMaxPacketsPerUpdate();
BlockUpdate update;
while (updates.Count > 0 && packetsSent < maxPacketsPerUpdate)
{
lock ( queueLock ) {
update = updates.Dequeue();
}
changesSinceSave++;
changesSinceBackup++;
SetBlock(update.x, update.y, update.h, update.type);
world.SendToAll(PacketWriter.MakeSetBlock(update.x, update.y, update.h, update.type), update.origin, false);
if (update.origin != null)
{
update.origin.info.ProcessBlockBuild(update.type);
}
packetsSent++;
}
if (world.loadSendingInProgress)
{
if (packetsSent < maxPacketsPerUpdate)
{
GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);
GC.WaitForPendingFinalizers();
world.SendToAll(PacketWriter.MakeMessage(Color.Red + "Map load complete."), null);
world.log.Log("Load command finished succesfully.", LogType.SystemActivity);
world.loadSendingInProgress = false;
world.EndLockDown();
}
else
{
if (!world.loadProgressReported && world.completedBlockUpdates / (float)world.totalBlockUpdates > 0.5f)
{
world.SendToAll(PacketWriter.MakeMessage(Color.Red + "Map loading: 50%"), null);
world.loadProgressReported = true;
}
world.completedBlockUpdates += packetsSent;
}
}
}
void Say(Player player, Command cmd)
{
if (player.Can(Permissions.Say))
{
string msg = cmd.NextAll();
if (msg != null && msg.Trim().Length > 0)
{
world.SendToAll(PacketWriter.MakeMessage(Color.Say + msg.Trim()), null);
}
else
{
player.Message("Usage: " + Color.Help + "/say message");
}
}
else
{
world.NoAccessMessage(player);
}
}
void Hide(Player player, Command cmd)
{
if (player.Can(Permissions.Hide))
{
if (!player.isHidden)
{
world.SendToAll(PacketWriter.MakeRemoveEntity(player.id), null);
world.SendToAll(PacketWriter.MakeMessage(Color.Sys + player.name + " left the server."), null);
player.isHidden = true;
player.Message(Color.Gray, "You are now hidden.");
}
else
{
player.Message("You are already hidden.");
}
}
else
{
world.NoAccessMessage(player);
}
}
// Kick a player. One argument (mandatory) - player name (can be partial).
void Kick(Player player, Command cmd)
{
if (player.Can(Permissions.Kick))
{
string name = cmd.Next();
if (name != null)
{
string msg = cmd.NextAll();
Player offender = world.FindPlayer(name);
if (offender != null)
{
world.SendToAll(PacketWriter.MakeMessage(
Color.Red + offender.name + " was kicked by " + player.name), offender);
if (msg != null && msg != "")
{
world.log.Log("{0} was kicked by {1}. Message: {2}", LogType.UserActivity, offender.name, player.name, msg);
offender.session.Kick("Kicked by " + player.name + ": " + msg);
}
else
{
world.log.Log("{0} was kicked by {1}", LogType.UserActivity, offender.name, player.name);
offender.session.Kick("You have been kicked by " + player.name);
}
}
else
{
world.NoPlayerMessage(player, name);
}
}
else
{
player.Message("Usage: " + Color.Help + "/kick PlayerName [Message]" +
Color.Sys + " or " + Color.Help + "/k PlayerName [Message]");
}
}
else
{
world.NoAccessMessage(player);
}
}
public void SendToAll(string message, string prefix, Player except, bool isHighPriority)
{
if (message.Length <= 64)
{
SendToAll(PacketWriter.MakeMessage(message), except, isHighPriority);
}
else
{
string[] words = message.Split(' ');
int ll = 0, j = 0;
bool first = true;
for (int i = 0; i < words.Length; i++)
{
if (ll + words[i].Length > 64)
{
if (first)
{
SendToAll(PacketWriter.MakeMessage(String.Join(" ", words, j, i - j - 1)), null, isHighPriority);
first = false;
}
else
{
SendToAll(PacketWriter.MakeMessage(prefix + String.Join(" ", words, j, i - j - 1)), null, isHighPriority);
}
j = i;
ll = prefix.Length;
i--;
}
else
{
ll += words[i].Length + 1;
}
}
if (ll != prefix.Length)
{
}
}
}
void Unhide(Player player, Command cmd)
{
if (player.Can(Permissions.Hide))
{
if (player.isHidden)
{
world.SendToAll(PacketWriter.MakeAddEntity(player, player.pos), player);
world.SendToAll(PacketWriter.MakeMessage(Color.Sys + player.name + " (" + player.info.playerClass.color +
player.info.playerClass.name + Color.Sys + ") has joined the server."),
player);
player.isHidden = false;
player.Message(Color.Gray, "You are no longer hidden.");
}
else
{
player.Message("You are not currently hidden.");
}
}
else
{
world.NoAccessMessage(player);
}
}
// Parses message incoming from the player
public void ParseMessage(string message, bool fromConsole)
{
if (DateTime.Now < mutedUntil)
{
return;
}
switch (Commands.GetMessageType(message))
{
case MessageType.Chat:
if (CheckChatSpam())
{
return;
}
info.linesWritten++;
string displayedName = nick;
if (world.config.GetBool("ClassPrefixesInChat"))
{
displayedName = info.playerClass.prefix + displayedName;
}
if (world.config.GetBool("ClassColorsInChat") && info.playerClass.color != "" && info.playerClass.color != Color.White)
{
displayedName = info.playerClass.color + displayedName + Color.White;
}
world.SendToAll(PacketWriter.MakeMessage(displayedName + ": " + message), null);
world.log.Log("{0}: {1}", LogType.Chat, name, message);
break;
case MessageType.Command:
world.log.Log("{0}: {1}", LogType.UserCommand, name, message);
world.cmd.ParseCommand(this, message, fromConsole);
break;
case MessageType.PrivateChat:
if (CheckChatSpam())
{
return;
}
string otherPlayerName = message.Substring(1, message.IndexOf(' ') - 1);
Player otherPlayer = world.FindPlayer(otherPlayerName);
if (otherPlayer != null)
{
world.log.Log("{0} to {1}: {2}", LogType.Chat, name, otherPlayer.name, message);
otherPlayer.Send(PacketWriter.MakeMessage(Color.Gray + "from " + name + ": " + message.Substring(message.IndexOf(' ') + 1)));
Send(PacketWriter.MakeMessage(Color.Gray + "to " + otherPlayer.name + ": " + message.Substring(message.IndexOf(' ') + 1)));
}
else
{
world.NoPlayerMessage(this, otherPlayerName);
}
break;
case MessageType.ClassChat:
if (CheckChatSpam())
{
return;
}
string className = message.Substring(2, message.IndexOf(' ') - 2);
PlayerClass playerClass = world.classes.FindClass(className);
if (playerClass != null)
{
world.log.Log("{0} to {1}: {2}", LogType.ClassChat, name, playerClass.name, message);
Packet classMsg = PacketWriter.MakeMessage(Color.Gray + "[" + playerClass.color + playerClass.name + Color.Gray + "]" + name + ": " + message.Substring(message.IndexOf(' ') + 1));
world.SendToClass(classMsg, playerClass);
if (info.playerClass != playerClass)
{
Send(classMsg);
}
}
else
{
Message("No such class: \"" + className.Substring(1) + "\"");
}
break;
}
}
// === Messaging ======================================================
// Broadcast
public void SendToAll(string message, Player except)
{
SendToAll(PacketWriter.MakeMessage(message), except, true);
}
// login logic
void LoginSequence()
{
byte opcode = reader.ReadByte();
if (opcode != (byte)InputCodes.Handshake)
{
world.log.Log("Session.LoginSequence: Unexpected opcode in the first packet: {0}.", LogType.Error, opcode);
KickNow("Unexpected handshake message - possible protocol mismatch!");
return;
}
// check protocol version
int clientProtocolVersion = reader.ReadByte();
if (clientProtocolVersion != Config.ProtocolVersion)
{
world.log.Log("Session.LoginSequence: Wrong protocol version: {0}.", LogType.Error, clientProtocolVersion);
KickNow("Incompatible protocol version!");
return;
}
// check name for nonstandard characters
string playerName = ReadString();
string verificationCode = ReadString();
reader.ReadByte(); // unused
if (!Player.IsValidName(playerName))
{
world.log.Log("Session.LoginSequence: Unacceptible player name: {0} ({1})", LogType.SuspiciousActivity, playerName, GetIP().ToString());
KickNow("Invalid characters in player name!");
return;
}
// check if player is banned
player = new Player(world, playerName, this, world.map.spawn);
if (player.info.banned)
{
player.info.ProcessFailedLogin(player);
world.log.Log("Banned player {0} tried to log in.", LogType.SuspiciousActivity, player.name);
world.SendToAll(PacketWriter.MakeMessage(Color.Sys + "Banned player " + player.name + " tried to log in."), player);
KickNow("You were banned by " + player.info.bannedBy + " " + DateTime.Now.Subtract(player.info.banDate).Days + " days ago.");
return;
}
// check if player's IP is banned
IPBanInfo IPBanInfo = world.bans.Get(GetIP());
if (IPBanInfo != null)
{
player.info.ProcessFailedLogin(player);
IPBanInfo.ProcessAttempt(player);
world.log.Log("{0} tried to log in from a banned IP.", LogType.SuspiciousActivity, player.name);
world.SendToAll(PacketWriter.MakeMessage(Color.Sys + player.name + " tried to log in from a banned IP."), null);
KickNow("Your IP was banned by " + IPBanInfo.bannedBy + " " + DateTime.Now.Subtract(IPBanInfo.banDate).Days + " days ago.");
return;
}
// verify name
if (!world.server.VerifyName(player.name, verificationCode))
{
string standardMessage = String.Format("Session.LoginSequence: Could not verify player name for {0} ({1}).",
player.name, GetIP());
if (player.info.timesVisited == 1 || player.info.lastIP.ToString() != GetIP().ToString())
{
switch (world.config.GetString("VerifyNames"))
{
case "Always":
case "Balanced":
player.info.ProcessFailedLogin(player);
world.log.Log("{0} IP did not match. Player was kicked.", LogType.SuspiciousActivity, standardMessage);
KickNow("Could not verify player name!");
return;
case "Never":
world.log.Log("{0} IP did not match. Player was allowed in anyway because VerifyNames is set to Never.",
LogType.SuspiciousActivity,
standardMessage);
Send(PacketWriter.MakeMessage(Color.Red + "Your name could not be verified."));
world.SendToAll(PacketWriter.MakeMessage(Color.Red + "Name and IP of " + player.name + " could not be verified!"), player);
break;
}
}
else
{
switch (world.config.GetString("VerifyNames"))
{
case "Always":
player.info.ProcessFailedLogin(player);
world.log.Log("{0} IP matched previous records for that name. " +
"Player was kicked anyway because VerifyNames is set to Always.", LogType.SuspiciousActivity,
standardMessage);
KickNow("Could not verify player name!");
return;
case "Balanced":
case "Never":
world.log.Log("{0} IP matched previous records for that name. Player was allowed in.", LogType.SuspiciousActivity,
standardMessage);
Send(PacketWriter.MakeMessage(Color.Red + "Your name could not be verified."));
if (world.config.GetBool("AnnounceUnverifiedNames"))
{
world.SendToAll(PacketWriter.MakeMessage(Color.Red + "Name of " + player.name +
" could not be verified, but IP matches."), player);
}
break;
}
}
}
// check if another player with the same name is on
Player potentialClone = world.FindPlayer(player.name);
if (potentialClone != null)
{
player.info.ProcessFailedLogin(player);
world.log.Log("Session.LoginSequence: Player {0} tried to log in from two computers at once.", LogType.SuspiciousActivity, player.name);
potentialClone.Message("Warning: someone just attempted to log in using your name.");
KickNow("Already connected form elsewhere!");
return;
}
potentialClone = world.FindPlayer(GetIP());
if (potentialClone != null)
{
player.info.ProcessFailedLogin(player);
world.log.Log("Session.LoginSequence: Player {0} tried to log in from same IP ({1}) as {2}.", LogType.SuspiciousActivity,
player.name, GetIP().ToString(), potentialClone.name);
potentialClone.Message("Warning: someone just attempted to log in using your IP.");
KickNow("Only one connection per IP allowed!");
return;
}
// Register player for future block updates
if (!world.RegisterPlayer(player))
{
KickNow("Sorry, server is full.");
return;
}
player.info.ProcessLogin(player);
// Player is now authenticated. Send server info.
writer.Write(PacketWriter.MakeHandshake(world, player));
// Start sending over the level copy
writer.WriteLevelBegin();
byte[] buffer = new byte[1024];
int bytesSent = 0;
// Fetch compressed map copy
byte[] blockData;
using (MemoryStream stream = new MemoryStream()) {
world.map.GetCompressedCopy(stream, true);
blockData = stream.ToArray();
}
world.log.Log("Session.LoginSequence: Sending compressed level copy ({0} bytes) to {1}.", LogType.Debug,
blockData.Length, player.name);
while (bytesSent < blockData.Length)
{
int chunkSize = blockData.Length - bytesSent;
if (chunkSize > 1024)
{
chunkSize = 1024;
}
Array.Copy(blockData, bytesSent, buffer, 0, chunkSize);
byte progress = (byte)(100 * bytesSent / blockData.Length);
// write in chunks of 1024 bytes or less
writer.WriteLevelChunk(buffer, chunkSize, progress);
bytesSent += chunkSize;
}
// Done sending over level copy
writer.Write(PacketWriter.MakeLevelEnd(world.map));
// Send playerlist and add player himself
writer.WriteAddEntity(255, player.name, player.pos);
world.SendPlayerList(player);
// Reveal newcommer to existing players
world.log.Log("{0} ({1}) has joined the server.", LogType.UserActivity, player.name, player.info.playerClass.name);
world.SendToAll(PacketWriter.MakeAddEntity(player, player.pos), player);
world.SendToAll(PacketWriter.MakeMessage(Color.Sys + player.name + " (" + player.info.playerClass.color +
player.info.playerClass.name + Color.Sys + ") has joined the server."),
player);
// Welcome message
if (player.info.timesVisited > 1)
{
player.Message("Welcome back to " + world.config.GetString("ServerName"));
}
else
{
player.Message("Welcome to " + world.config.GetString("ServerName"));
}
player.Message("Your player class is " + player.info.playerClass.color + player.info.playerClass.name + Color.Sys +
". Type /help for details.");
if (world.config.GetBool("LowLatencyMode"))
{
client.NoDelay = true;
}
// Done.
world.log.Log("Session.LoginSequence: {0} is now ready.", LogType.Debug,
player.name);
GC.Collect();
}
void DoBan(Player player, Command cmd, bool banIP, bool banAll, bool unban)
{
if (!banAll && !banIP && player.Can(Permissions.Ban) ||
!banAll && player.Can(Permissions.BanIP) ||
player.Can(Permissions.BanAll))
{
string arg = cmd.Next();
string reason = cmd.NextAll();
IPAddress address;
Player offender = world.FindPlayer(arg);
PlayerInfo info = world.db.FindPlayerInfoExact(arg);
// ban by IP address
if (banIP && IPAddress.TryParse(arg, out address))
{
if (banIP)
{
DoIPBan(player, address, reason, null, banAll, unban);
}
// ban online players
}
else if (!unban && offender != null)
{
address = offender.info.lastIP;
if (banIP)
{
DoIPBan(player, address, reason, offender.name, banAll, unban);
}
if (unban)
{
if (offender.info.ProcessUnBan(player.name, reason))
{
world.log.Log("{0} was unbanned by {1}.", LogType.UserActivity, offender.info.name, player.name);
world.SendToAll(PacketWriter.MakeMessage(Color.Red + offender.name + " was unbanned by " + player.name), offender);
}
else
{
player.Message(offender.name + " is not currently banned.");
}
}
else
{
if (offender.info.ProcessBan(player.name, reason))
{
world.log.Log("{0} was banned by {1}.", LogType.UserActivity, offender.info.name, player.name);
world.SendToAll(PacketWriter.MakeMessage(Color.Red + offender.name + " was banned by " + player.name), offender);
offender.session.Kick("You were banned by " + player.name + "!");
}
else
{
player.Message(offender.name + " is already banned.");
}
}
// ban offline players
}
else if (info != null)
{
address = info.lastIP;
if (banIP)
{
DoIPBan(player, address, reason, info.name, banAll, unban);
}
if (unban)
{
if (info.ProcessUnBan(player.name, reason))
{
world.log.Log("{0} (offline) was unbanned by {1}", LogType.UserActivity, info.name, player.name);
world.SendToAll(PacketWriter.MakeMessage(Color.Red + info.name + " (offline) was unbanned by " + player.name), null);
}
else
{
player.Message(info.name + " (offline) is not currenty banned.");
}
}
else
{
if (info.ProcessBan(player.name, reason))
{
world.log.Log("{0} (offline) was banned by {1}.", LogType.UserActivity, info.name, player.name);
world.SendToAll(PacketWriter.MakeMessage(Color.Red + info.name + " (offline) was banned by " + player.name), null);
}
else
{
player.Message(info.name + " (offline) is already banned.");
}
}
}
else
{
world.NoPlayerMessage(player, arg);
}
}
else
{
world.NoAccessMessage(player);
}
}