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Player.Networking.cs
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Player.Networking.cs
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// Part of fCraft | Copyright 2009-2015 Matvei Stefarov <me@matvei.org> | BSD-3 | See LICENSE.txt //Copyright (c) 2011-2013 Jon Baker, Glenn Marien and Lao Tszy <Jonty800@gmail.com> //Copyright (c) <2012-2014> <LeChosenOne, DingusBungus> | ProCraft Copyright 2014-2016 Joseph Beauvais <123DMWM@gmail.com>
//#define DEBUG_MOVEMENT
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using fCraft.AutoRank;
using fCraft.Events;
using fCraft.MapConversion;
using JetBrains.Annotations;
using System.Diagnostics;
namespace fCraft {
/// <summary> Represents a connection to a Minecraft client. Handles low-level interactions (e.g. networking). </summary>
public sealed partial class Player {
public static int SocketTimeout { get; set; }
public static bool RelayAllUpdates { get; set; }
const int SleepDelay = 5; // milliseconds
const int SocketPollInterval = 100; // multiples of SleepDelay, approx. 1 second
const int PingInterval = 1; // multiples of SocketPollInterval, approx. 3 seconds
public DateTime LastZoneNotification = DateTime.UtcNow;
static Player() {
MaxBlockPlacementRange = 32767;
SocketTimeout = 10000;
}
/// <summary> Reason that this player is about to leave / has left the server. Set by Kick.
/// This value is undefined until the player is about to disconnect. </summary>
public LeaveReason LeaveReason { get; private set; }
/// <summary> Remote IP address of this player. </summary>
public IPAddress IP { get; private set; }
bool canReceive = true,
canSend = true,
canQueue = true;
bool unregisterOnKick = true;
readonly Thread ioThread;
readonly TcpClient client;
readonly NetworkStream stream;
readonly PacketReader reader;
readonly PacketWriter writer;
readonly ConcurrentQueue<Packet> priorityOutputQueue = new ConcurrentQueue<Packet>();
readonly ConcurrentQueue<SetBlockData> blockQueue = new ConcurrentQueue<SetBlockData>();
internal static Player StartSession( [NotNull] TcpClient tcpClient ) {
if( tcpClient == null ) throw new ArgumentNullException( "tcpClient" );
IPAddress ipAddress = ((IPEndPoint)(tcpClient.Client.RemoteEndPoint)).Address;
IPBanInfo ipBanInfo = IPBanList.Get(ipAddress);
if (ipBanInfo != null) {
Logger.Log(LogType.SuspiciousActivity, "Player on banned ip(" + ipAddress.ToString() +") tried to join");
string bannedMessage = string.Format("IP-banned {0} ago by {1}: {2}",
DateTime.UtcNow.Subtract(ipBanInfo.BanDate).ToMiniString(),
ipBanInfo.BannedBy, ipBanInfo.BanReason);
tcpClient.Client.Send(Packet.MakeKick(bannedMessage, false).Bytes);
return null;
}
return new Player( tcpClient );
}
Player( [NotNull] TcpClient tcpClient ) {
if( tcpClient == null ) throw new ArgumentNullException( "tcpClient" );
State = SessionState.Connecting;
LoginTime = DateTime.UtcNow;
LastActiveTime = DateTime.UtcNow;
LastPatrolTime = DateTime.UtcNow;
LeaveReason = LeaveReason.Unknown;
LastUsedBlockType = Block.None;
BlocksDeletedThisSession = 0;
BlocksPlacedThisSession = 0;
client = tcpClient;
client.SendTimeout = SocketTimeout;
client.ReceiveTimeout = SocketTimeout;
BrushReset();
Metadata = new MetadataCollection<object>();
try {
IP = ( (IPEndPoint)( client.Client.RemoteEndPoint ) ).Address;
if( Server.RaiseSessionConnectingEvent( IP ) ) return;
stream = client.GetStream();
reader = new PacketReader( stream );
writer = new PacketWriter( stream );
ioThread = new Thread( IoLoop ) {
Name = "ProCraft.Session",
CurrentCulture = new CultureInfo( "en-US" )
};
ioThread.Start();
} catch( SocketException ) {
// Mono throws SocketException when accessing Client.RemoteEndPoint on disconnected sockets
Disconnect();
} catch( Exception ex ) {
Logger.LogAndReportCrash( "Session failed to start", "ProCraft", ex, false );
Disconnect();
}
}
#region I/O Loop
void IoLoop() {
try {
Server.RaiseSessionConnectedEvent( this );
// try to log the player in, otherwise die.
if( !LoginSequence() ) return;
BandwidthUseMode = Info.BandwidthUseMode;
// set up some temp variables
Packet packet = new Packet();
SetBlockData blockUpdate = new SetBlockData();
byte[] blockPacket = new byte[8];
blockPacket[0] = (byte)OpCode.SetBlockServer;
byte[] bulkBlockPacket = null;
if (Supports(CpeExt.BulkBlockUpdate)) {
bulkBlockPacket = new byte[1282];
bulkBlockPacket[0] = (byte)OpCode.BulkBlockUpdate;
}
int pollCounter = 0, pingCounter = 0;
// main i/o loop
while( canSend ) {
int packetsSent = 0, blockPacketsSent = 0;
// detect player disconnect
if( pollCounter > SocketPollInterval ) {
if( !client.Connected ||
( client.Client.Poll( 1000, SelectMode.SelectRead ) && client.Client.Available == 0 ) ) {
if( Info != null ) {
Logger.Log( LogType.Debug,
"Player.IoLoop: Lost connection to player {0} ({1}).", Name, IP );
} else {
Logger.Log( LogType.Debug,
"Player.IoLoop: Lost connection to unidentified player at {0}.", IP );
}
LeaveReason = LeaveReason.ClientQuit;
return;
}
if( pingCounter > PingInterval ) {
if( Supports( CpeExt.TwoWayPing ) ) {
SendNow( Packet.MakeTwoWayPing( true, Ping.NextTwoWayPingData() ) );
} else {
writer.Write( OpCode.Ping );
BytesSent++;
}
pingCounter = 0;
MeasureBandwidthUseRates();
}
pingCounter++;
pollCounter = 0;
}
pollCounter++;
if( DateTime.UtcNow.Subtract( lastMovementUpdate ) > movementUpdateInterval ) {
UpdateVisibleEntities();
lastMovementUpdate = DateTime.UtcNow;
}
// send output to player
while (canSend && packetsSent < Server.MaxSessionPacketsPerTick) {
if (!priorityOutputQueue.TryDequeue(out packet)) break;
if( IsDeaf && packet.OpCode == OpCode.Message ) continue;
writer.Write( packet.Bytes );
BytesSent += packet.Bytes.Length;
packetsSent++;
if( packet.OpCode == OpCode.Kick ) {
writer.Flush();
if( LeaveReason == LeaveReason.Unknown ) LeaveReason = LeaveReason.Kick;
return;
}
if( DateTime.UtcNow.Subtract( lastMovementUpdate ) > movementUpdateInterval ) {
UpdateVisibleEntities();
lastMovementUpdate = DateTime.UtcNow;
}
}
// send block updates output to player
bool useBulk = bulkBlockPacket != null && blockQueue.Length > 160;
Map currentMap = WorldMap;
while (canSend && blockPacketsSent < Server.MaxBlockPacketsPerTick) {
if (!blockQueue.TryDequeue(out blockUpdate)) break;
CheckBlock(ref blockUpdate.Block);
if (!useBulk) {
Packet.WriteU16(blockUpdate.X, blockPacket, 1);
Packet.WriteU16(blockUpdate.Z, blockPacket, 3);
Packet.WriteU16(blockUpdate.Y, blockPacket, 5);
blockPacket[7] = blockUpdate.Block;
writer.Write( blockPacket );
BytesSent += blockPacket.Length;
} else {
int index = currentMap.Index(blockUpdate.X, blockUpdate.Y, blockUpdate.Z);
Packet.WriteI32(index, bulkBlockPacket, 2 + 4 * blockPacketsSent);
bulkBlockPacket[2 + 1024 + blockPacketsSent] = blockUpdate.Block;
}
blockPacketsSent++;
}
if (canSend && useBulk) {
bulkBlockPacket[1] = (byte)(blockPacketsSent - 1);
writer.Write( bulkBlockPacket );
BytesSent += bulkBlockPacket.Length;
}
// check if player needs to change worlds
if( canSend ) {
lock( joinWorldLock ) {
if( forcedWorldToJoin != null ) {
while( priorityOutputQueue.TryDequeue( out packet ) ) {
writer.Write( packet.Bytes );
BytesSent += packet.Bytes.Length;
packetsSent++;
if( packet.OpCode == OpCode.Kick ) {
writer.Flush();
if( LeaveReason == LeaveReason.Unknown ) LeaveReason = LeaveReason.Kick;
return;
}
}
if( !JoinWorldNow( forcedWorldToJoin, useWorldSpawn, worldChangeReason ) ) {
Logger.Log( LogType.Warning,
"Player.IoLoop: Player was asked to force-join a world, but it was full." );
KickNow( "World is full.", LeaveReason.ServerFull );
}
forcedWorldToJoin = null;
}
}
if( DateTime.UtcNow.Subtract( lastMovementUpdate ) > movementUpdateInterval ) {
UpdateVisibleEntities();
lastMovementUpdate = DateTime.UtcNow;
}
}
// get input from player
while( canReceive && stream.DataAvailable ) {
byte opcode = reader.ReadByte();
switch( (OpCode)opcode ) {
case OpCode.Message:
if( !ProcessMessagePacket() ) return;
break;
case OpCode.Teleport:
ProcessMovementPacket();
break;
case OpCode.SetBlockClient:
ProcessSetBlockPacket();
break;
case OpCode.PlayerClick:
ProcessPlayerClickPacket();
break;
case OpCode.TwoWayPing:
ProcessTwoWayPingPacket();
break;
case OpCode.Ping:
ProcessPingPacket();
continue;
default:
Logger.Log( LogType.SuspiciousActivity,
"Player {0} was kicked after sending an invalid opcode ({1}).",
Name, opcode );
KickNow( "Unknown packet opcode " + opcode,
LeaveReason.InvalidOpcodeKick );
return;
}
if( DateTime.UtcNow.Subtract( lastMovementUpdate ) > movementUpdateInterval ) {
UpdateVisibleEntities();
lastMovementUpdate = DateTime.UtcNow;
}
}
Thread.Sleep( SleepDelay );
}
} catch( IOException ) {
LeaveReason = LeaveReason.ClientQuit;
} catch( SocketException ) {
LeaveReason = LeaveReason.ClientQuit;
#if !DEBUG
} catch( Exception ex ) {
LeaveReason = LeaveReason.ServerError;
Logger.LogAndReportCrash( "Error in Player.IoLoop", "ProCraft", ex, false );
#endif
} finally {
canQueue = false;
canSend = false;
Disconnect();
}
}
#endregion
void ProcessPingPacket() {
BytesReceived++;
}
bool ProcessMessagePacket() {
BytesReceived += 66;
ResetIdleTimer();
byte longerMessage = reader.ReadByte();
string message = reader.ReadString();
if ( !IsSuper && message.StartsWith( "/womid " ) ) {
IsUsingWoM = true;
return true;
}
if((message.IndexOf('&') != -1) && (!(Can(Permission.UseColorCodes)))) {
message = Color.StripColors( message, false);
}
if (longerMessage == 1) {
message = message + "λ";
}
#if DEBUG
ParseMessage( message, false );
#else
try {
ParseMessage( message, false );
} catch( IOException ) {
throw;
} catch( SocketException ) {
throw;
} catch( Exception ex ) {
Logger.LogAndReportCrash( "Error while parsing player's message", "ProCraft", ex, false );
Message( "&WError while handling your message ({0}: {1})." +
"It is recommended that you reconnect to the server.",
ex.GetType().Name, ex.Message );
}
#endif
return true;
}
DateTime lastSpamTime = DateTime.MinValue;
DateTime lastMoveTime = DateTime.MinValue;
void UpdateHeldBlock() {
byte id = reader.ReadByte();
if (!Supports(CpeExt.HeldBlock)) {
HeldBlock = Block.None; return;
}
// Holding an invalid block
Block held = (Block)id;
if (held > Block.StoneBrick && World.BlockDefs[id] == null) {
HeldBlock = Block.Stone; return;
}
if (HeldBlock == held) return;
HeldBlock = held;
LastUsedBlockType = held;
if (Supports(CpeExt.MessageType) && !IsPlayingCTF) {
Send(Packet.Message((byte)MessageType.BottomRight1, "Block:&f" + Map.GetBlockName(World, HeldBlock)
+ " &SID:&f" + (byte)HeldBlock, this));
}
}
void ProcessMovementPacket() {
BytesReceived += 10;
UpdateHeldBlock();
Position newPos = default(Position);
if (supportsExtPositions) {
newPos.X = reader.ReadInt32();
newPos.Z = reader.ReadInt32();
newPos.Y = reader.ReadInt32();
} else {
newPos.X = reader.ReadInt16();
newPos.Z = reader.ReadInt16();
newPos.Y = reader.ReadInt16();
}
newPos.R = reader.ReadByte();
newPos.L = reader.ReadByte();
Position oldPos = Position;
// calculate difference between old and new positions
Position delta = CalcDelta(oldPos, newPos, supportsExtPositions);
// skip everything if player hasn't moved
if( delta.IsZero ) return;
bool posChanged = (delta.X != 0) || (delta.Y != 0) || (delta.Z != 0);
bool rotChanged = (delta.R != 0) || (delta.L != 0);
//if(rotChanged && !this.isSolid) ResetIdleTimer();
//if(posChanged && this.isSolid) ResetIdleTimer();
if (rotChanged) ResetIdleTimer();
bool deniedzone = false;
if (World.IsLoaded) { //prevents server error when using genheightmap with large maps
foreach (Zone zone in World.Map.Zones.Cache) {
if (SpecialZone.CheckMoveZone(this, zone, ref deniedzone, newPos)) break;
}
}
if ( Info.IsFrozen || deniedzone) {
// special handling for frozen players
if( delta.X * delta.X + delta.Y * delta.Y > AntiSpeedMaxDistanceSquared ||
Math.Abs( delta.Z ) > 40 ) {
SendNow( TeleportPacket( Packet.SelfId, Position ) );
}
newPos.X = Position.X;
newPos.Y = Position.Y;
newPos.Z = Position.Z;
// recalculate deltas
delta.X = 0;
delta.Y = 0;
delta.Z = 0;
} else if( !Can( Permission.UseSpeedHack ) || !Info.AllowSpeedhack) {
int distSquared = delta.X * delta.X + delta.Y * delta.Y + delta.Z * delta.Z;
// speedhack detection
if( DetectMovementPacketSpam() ) {
return;
} else if( ( distSquared - delta.Z * delta.Z > AntiSpeedMaxDistanceSquared ||
delta.Z > AntiSpeedMaxJumpDelta ) &&
speedHackDetectionCounter >= 0 ) {
if( speedHackDetectionCounter == 0 ) {
lastValidPosition = Position;
} else if( speedHackDetectionCounter > 1 ) {
DenyMovement();
speedHackDetectionCounter = 0;
return;
}
speedHackDetectionCounter++;
} else {
speedHackDetectionCounter = 0;
}
}
if( RaisePlayerMovingEvent( this, newPos ) ) {
DenyMovement();
return;
}
Position = newPos;
RaisePlayerMovedEvent( this, oldPos );
}
void ProcessSetBlockPacket() {
BytesReceived += 9;
if( World == null || World.Map == null ) return;
if (IsAFK) {
Server.Players.CanSee(this).Message("{0} is no longer AFK", Name);
Message("&SYou are no longer AFK");
IsAFK = false;
oldafkMob = afkMob;
afkMob = Info.Model;
Server.UpdateTabList(true);
}
ResetIdleTimer();
ushort x = reader.ReadUInt16();
ushort z = reader.ReadUInt16();
ushort y = reader.ReadUInt16();
ClickAction action = ( reader.ReadByte() == 1 ) ? ClickAction.Build : ClickAction.Delete;
byte type = reader.ReadByte();
// if a player is using InDev or SurvivalTest client, they may try to
// place blocks that are not found in MC Classic. Convert them!
if( type > (byte)Map.MaxCustomBlockType && !Supports(CpeExt.BlockDefinitions)) {
type = MapDat.MapBlock( type );
}
Vector3I coords = new Vector3I( x, y, z );
// If block is in bounds, count the click.
// Sometimes MC allows clicking out of bounds,
// like at map transitions or at the top layer of the world.
// Those clicks should be simply ignored.
if( !World.Map.InBounds( coords ) ) return;
if ((action == ClickAction.Delete || type == 0) && !World.Deletable) {
SendNow(Packet.Message(0, "Deleting blocks is disabled in this world.", this));
RevertBlockNow(coords);
return;
} else if (action == ClickAction.Build && !World.Buildable) {
SendNow(Packet.Message(0, "Placing blocks is disabled in this world.", this));
RevertBlockNow(coords);
return;
}
PlaceBlockWithEvents( coords, action, (Block)type );
}
void ProcessPlayerClickPacket() {
BytesReceived += 15;
byte button = reader.ReadByte();
byte action = reader.ReadByte();
short pitch = reader.ReadInt16();
short yaw = reader.ReadInt16();
byte targetEntityID = reader.ReadByte();
short targetBlockX = reader.ReadInt16();
short targetBlockY = reader.ReadInt16();
short targetBlockZ = reader.ReadInt16();
byte targetBlockFace = reader.ReadByte();
}
void ProcessTwoWayPingPacket() {
bool serverToClient = reader.ReadByte() != 0;
ushort data = reader.ReadUInt16();
BytesReceived += 3;
if( !serverToClient ) {
// Client-> server ping, immediately send reply.
SendNow( Packet.MakeTwoWayPing( false, data ) );
} else {
// Server -> client ping, set time received for reply.
Ping.Update(data);
}
}
void Disconnect() {
State = SessionState.Disconnected;
Server.RaiseSessionDisconnectedEvent( this, LeaveReason );
if( HasRegistered ) {
if( unregisterOnKick )
Server.UnregisterPlayer( this );
RaisePlayerDisconnectedEvent( this, LeaveReason );
}
if( stream != null ) stream.Close();
if( client != null ) client.Close();
}
bool LoginSequence()
{
byte opCode = reader.ReadByte();
#if DEBUG_NETWORKING
Logger.Log( LogType.Trace, "from {0} [{1}] {2}", IP, outPacketNumber++, (OpCode)opCode );
#endif
if (!HandleOpcode(opCode)) return false;
// Check protocol version
int clientProtocolVersion = reader.ReadByte();
if (clientProtocolVersion != Config.ProtocolVersion)
{
Logger.Log(LogType.Error,
"Player.LoginSequence: Wrong protocol version: {0}.",
clientProtocolVersion);
KickNow("Incompatible protocol version!", LeaveReason.ProtocolViolation);
return false;
}
string givenName = reader.ReadString();
string verificationCode = reader.ReadString();
bool supportsCpe = (reader.ReadByte() == 0x42);
BytesReceived += 131;
bool isEmailAccount = false;
if (IsValidEmail(givenName)) {
isEmailAccount = true;
}
else if (!IsValidAccountName(givenName)) {
// Neither Mojang nor a normal account -- kick it!
Logger.Log(LogType.SuspiciousActivity,
"Player.LoginSequence: Unacceptable player name: {0} ({1})",
givenName,
IP);
KickNow("Unacceptable player name!", LeaveReason.ProtocolViolation);
return false;
}
Info = PlayerDB.FindOrCreateInfoForPlayer( givenName, IP );
ResetAllBinds();
if (isEmailAccount) {
Logger.Log( LogType.SystemActivity,
"Mojang account <{0}> connected as {1}",
givenName,
Info.Name );
}
if (Server.VerifyName(givenName, verificationCode, Heartbeat.Salt))
{
IsVerified = true;
// update capitalization of player's name
if (!Info.Name.Equals(givenName, StringComparison.Ordinal))
{
Info.Name = givenName;
}
}
else
{
NameVerificationMode nameVerificationMode = ConfigKey.VerifyNames.GetEnum<NameVerificationMode>();
string standardMessage =
String.Format("Player.LoginSequence: Could not verify player name for {0} ({1}).",
Name, IP);
if (IP.Equals(IPAddress.Loopback) && nameVerificationMode != NameVerificationMode.Always)
{
Logger.Log(LogType.SuspiciousActivity,
"{0} Player was identified as connecting from localhost and allowed in.",
standardMessage);
IsVerified = true;
}
else if (IP.IsLocal() && ConfigKey.AllowUnverifiedLAN.Enabled())
{
Logger.Log(LogType.SuspiciousActivity,
"{0} Player was identified as connecting from LAN and allowed in.",
standardMessage);
IsVerified = true;
}
else if (Info.TimesVisited > 1 && Info.LastIP.Equals(IP))
{
switch (nameVerificationMode)
{
case NameVerificationMode.Always:
Info.ProcessFailedLogin(this);
Logger.Log(LogType.SuspiciousActivity,
"{0} IP matched previous records for that name. " +
"Player was kicked anyway because VerifyNames is set to Always.",
standardMessage);
KickNow("Could not verify player name!", LeaveReason.UnverifiedName);
return false;
case NameVerificationMode.Balanced:
case NameVerificationMode.Never:
Logger.Log(LogType.SuspiciousActivity,
"{0} IP matched previous records for that name. Player was allowed in.",
standardMessage);
IsVerified = true;
break;
}
}
else
{
switch (nameVerificationMode)
{
case NameVerificationMode.Always:
case NameVerificationMode.Balanced:
Info.ProcessFailedLogin(this);
Logger.Log(LogType.SuspiciousActivity,
"{0} IP did not match. Player was kicked.",
standardMessage);
KickNow("Could not verify player name!", LeaveReason.UnverifiedName);
return false;
case NameVerificationMode.Never:
Logger.Log(LogType.SuspiciousActivity,
"{0} IP did not match. Player was allowed in anyway because VerifyNames is set to Never.",
standardMessage);
Message("&WYour name could not be verified.");
break;
}
}
}
// Check if player is banned
if (Info.IsBanned)
{
Info.ProcessFailedLogin(this);
Logger.Log(LogType.SuspiciousActivity,
"Banned player {0} tried to log in from {1}",
Name, IP);
string bannedMessage;
if (Info.BannedBy != null)
{
if (Info.BanReason != null)
{
bannedMessage = String.Format("Banned {0} ago by {1}: {2}",
Info.TimeSinceBan.ToMiniString(),
Info.BannedBy,
Info.BanReason);
}
else
{
bannedMessage = String.Format("Banned {0} ago by {1}",
Info.TimeSinceBan.ToMiniString(),
Info.BannedBy);
}
}
else
{
if (Info.BanReason != null)
{
bannedMessage = String.Format("Banned {0} ago: {1}",
Info.TimeSinceBan.ToMiniString(),
Info.BanReason);
}
else
{
bannedMessage = String.Format("Banned {0} ago",
Info.TimeSinceBan.ToMiniString());
}
}
KickNow(bannedMessage, LeaveReason.LoginFailed);
return false;
}
// Check if player's IP is banned
IPBanInfo ipBanInfo = IPBanList.Get(IP);
if (ipBanInfo != null && Info.BanStatus != BanStatus.IPBanExempt)
{
Info.ProcessFailedLogin(this);
ipBanInfo.ProcessAttempt(this);
Logger.Log(LogType.SuspiciousActivity,
"{0} tried to log in from a banned IP.", Name);
string bannedMessage = String.Format("IP-banned {0} ago by {1}: {2}",
DateTime.UtcNow.Subtract(ipBanInfo.BanDate).ToMiniString(),
ipBanInfo.BannedBy,
ipBanInfo.BanReason);
KickNow(bannedMessage, LeaveReason.LoginFailed);
return false;
}
// Check if player is paid (if required)
if (ConfigKey.PaidPlayersOnly.Enabled() && Info.AccountType != AccountType.Paid)
{
SendNow(Packet.MakeHandshake(this, ConfigKey.ServerName.GetString(),
"Please wait; Checking paid status...", HasCP437));
writer.Flush();
Info.AccountType = CheckPaidStatus(Name);
if (Info.AccountType != AccountType.Paid)
{
Logger.Log(LogType.SystemActivity,
"Player {0} was kicked because their account is not paid, and PaidPlayersOnly setting is enabled.",
Name);
KickNow("Paid players allowed only.", LeaveReason.LoginFailed);
return false;
}
}
else
{
Info.CheckAccountType();
}
// Any additional security checks should be done right here
if (RaisePlayerConnectingEvent(this)) return false;
// ----==== beyond this point, player is considered connecting (allowed to join) ====----
// negotiate protocol extensions
if (supportsCpe && !NegotiateProtocolExtension())
{
return false;
}
if (string.IsNullOrEmpty(ClientName) || !ClientName.CaselessContains("classicalsharp")) {
Message("&bIt is recommended that you use the ClassicalSharp client!");
Message("&9http://123dmwm.tk/cs &bredirects to the official download.");
}
// Register player for future block updates
if (!Server.RegisterPlayer(this))
{
Logger.Log(LogType.SystemActivity,
"Player {0} was kicked because server is full.", Name);
string kickMessage = String.Format("Sorry, server is full ({0}/{1})",
Server.Players.Length, ConfigKey.MaxPlayers.GetInt());
KickNow(kickMessage, LeaveReason.ServerFull);
return false;
}
Info.ProcessLogin(this);
State = SessionState.LoadingMain;
// ----==== Beyond this point, player is considered connected (authenticated and registered) ====----
Logger.Log(LogType.UserActivity, "{0} &Sconnected from {1}.", Name, IP);
// Figure out what the starting world should be
World startingWorld = WorldManager.FindMainWorld(this);
startingWorld = RaisePlayerConnectedEvent(this, startingWorld);
Position = startingWorld.LoadMap().getSpawnIfRandom();
// Send server information
string serverName = ConfigKey.ServerName.GetString();
string motd = "Welcome to our server!";
FileInfo MOTDInfo = new FileInfo("./MOTDList.txt");
if (MOTDInfo.Exists)
{
string[] MOTDlist = File.ReadAllLines("./MOTDList.txt");
Array.Sort(MOTDlist);
Random random = new Random();
int index = random.Next(0, MOTDlist.Length);
motd = MOTDlist[index];
if (motd.Length > Packet.StringSize) {
motd = "&0=&c=&e= Welcome to our server! &e=&c=&0=";
} else {
LastMotdMessage = motd;
motd = "&0=&c=&e= " + motd + " &e=&c=&0=";
}
}
SendNow(Packet.MakeHandshake(this, serverName, motd, HasCP437));
// AutoRank
if (ConfigKey.AutoRankEnabled.Enabled())
{
Rank newRank = AutoRankManager.Check(Info);
if (newRank != null)
{
try
{
Info.ChangeRank(AutoRank, newRank, "~AutoRank", true, true, true);
}
catch (PlayerOpException ex)
{
Logger.Log(LogType.Error,
"AutoRank failed on player {0}: {1}",
ex.Player.Name, ex.Message);
}
}
}
bool firstTime = (Info.TimesVisited == 1);
if (!JoinWorldNow(startingWorld, true, WorldChangeReason.FirstWorld))
{
Logger.Log(LogType.Warning,
"Could not load main world ({0}) for connecting player {1} (from {2}): " +
"Either main world is full, or an error occurred.",
startingWorld.Name, Name, IP);
KickNow("Either main world is full, or an error occurred.", LeaveReason.WorldFull);
return false;
}
// ==== Beyond this point, player is considered ready (has a world) ====
var canSee = Server.Players.CanSee(this).ToArray();
// Announce join
if (ConfigKey.ShowConnectionMessages.Enabled())
{
string message = Server.MakePlayerConnectedMessage(this, firstTime);
canSee.Message(message);
}
if (!IsVerified)
{
canSee.Message("&WName and IP of {0}&W are unverified!", ClassyName);
}
if (Info.IsHidden)
{
if (Can(Permission.Hide))
{
canSee.Message("&8Player {0}&8 logged in hidden.", ClassyName);
}
else
{
Info.IsHidden = false;
}
}
Info.GeoipLogin();
// Check if other banned players logged in from this IP
PlayerInfo[] bannedPlayerNames = PlayerDB.FindPlayers(IP, 25)
.Where(playerFromSameIP => playerFromSameIP.IsBanned)
.ToArray();
if (bannedPlayerNames.Length > 0)
{
canSee.Message("&WPlayer {0}&W logged in from an IP shared by banned players: {1}",
ClassyName, bannedPlayerNames.JoinToClassyString());
Logger.Log(LogType.SuspiciousActivity,
"Player {0} logged in from an IP shared by banned players: {1}",
ClassyName, bannedPlayerNames.JoinToString(info => info.Name));
}
// check if player is still muted
if (Info.MutedUntil > DateTime.UtcNow)
{
Message("&WYou were previously muted by {0}&W, {1} left.",
Info.MutedByClassy, Info.TimeMutedLeft.ToMiniString());
canSee.Message("&WPlayer {0}&W was previously muted by {1}&W, {2} left.",
ClassyName, Info.MutedByClassy, Info.TimeMutedLeft.ToMiniString());
}
// check if player is still frozen
if (Info.IsFrozen)
{
if (Info.FrozenOn != DateTime.MinValue)
{
Message("&WYou were previously frozen {0} ago by {1}. This means you can not move or place/delete blocks. Seek Moderator Assistance.",
Info.TimeSinceFrozen.ToMiniString(),
Info.FrozenByClassy);
canSee.Message("&WPlayer {0}&W was previously frozen {1} ago by {2}",
ClassyName,
Info.TimeSinceFrozen.ToMiniString(),
Info.FrozenByClassy);
}
else
{
Message("&WYou were previously frozen by {0}. This means you can not move or place/delete blocks. Seek Moderator Assistance.",
Info.FrozenByClassy);
canSee.Message("&WPlayer {0}&W was previously frozen by {1}.",
ClassyName, Info.FrozenByClassy);
}
}
// Welcome message
if (File.Exists(Paths.GreetingFileName))
{
string[] greetingText = File.ReadAllLines(Paths.GreetingFileName);
foreach (string greetingLine in greetingText)
{
Message(Chat.ReplaceTextKeywords(this, greetingLine));
}
}
else
{
if (firstTime)
{
Message("Welcome to {0}", ConfigKey.ServerName.GetString());
}
else
{
Message("Welcome back to {0}", ConfigKey.ServerName.GetString());
}
Message("Your rank is {0}&S. Type &H/Help&S for help.",
Info.Rank.ClassyName);
}
if (Info.Rank == RankManager.HighestRank) {
if (Report.Reports.Count >= 1) {
Message(Report.Reports.Count + " unread /Reports");
}
}
// A reminder for first-time users
if (PlayerDB.Size == 1 && Info.Rank != RankManager.HighestRank)
{
Message("Type &H/Rank {0} {1}&S in console to promote yourself",
Name, RankManager.HighestRank.Name);
}
MaxCopySlots = Info.Rank.CopySlots;
HasFullyConnected = true;
State = SessionState.Online;
// Add player to the userlist
Server.UpdatePlayerList();
RaisePlayerReadyEvent(this);
if (Supports(CpeExt.MessageType))
Send(Packet.Message((byte)MessageType.Status1, ConfigKey.ServerName.GetString(), this));
short NID = 1;
this.NameID = NID;
retry:
foreach (Player player in Server.Players)
{
if (this.NameID == player.NameID && this.Info.PlayerObject != player.Info.PlayerObject)
{
this.NameID++;
goto retry;
}
}
if (Info.skinName == "") {
oldskinName = Info.skinName;
Info.skinName = Name;
}