PandacubeFr/BungeeCord
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Upstream and downstream bridges are now uber sexy

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md_5 2013-03-07 20:47:39 +11:00
parent 0077af58d0
commit 0afc52c130
4 changed files with 274 additions and 300 deletions
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305
proxy/src/main/java/net/md_5/bungee/UserConnection.java
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@ -1,10 +1,5 @@
package net.md_5.bungee; package net.md_5.bungee;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.InetSocketAddress; import java.net.InetSocketAddress;
import java.net.Socket; import java.net.Socket;
import java.util.Collection; import java.util.Collection;
@ -16,15 +11,15 @@ import java.util.Map;
import java.util.Queue; import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue; import java.util.concurrent.ConcurrentLinkedQueue;
import lombok.Getter; import lombok.Getter;
import lombok.Setter;
import lombok.Synchronized; import lombok.Synchronized;
import net.md_5.bungee.api.ProxyServer; import net.md_5.bungee.api.ProxyServer;
import net.md_5.bungee.api.config.ServerInfo; import net.md_5.bungee.api.config.ServerInfo;
import net.md_5.bungee.api.connection.PendingConnection; import net.md_5.bungee.api.connection.PendingConnection;
import net.md_5.bungee.api.connection.ProxiedPlayer; import net.md_5.bungee.api.connection.ProxiedPlayer;
import net.md_5.bungee.api.event.ChatEvent;
import net.md_5.bungee.api.event.PlayerDisconnectEvent; import net.md_5.bungee.api.event.PlayerDisconnectEvent;
import net.md_5.bungee.api.event.PluginMessageEvent;
import net.md_5.bungee.api.event.ServerConnectEvent; import net.md_5.bungee.api.event.ServerConnectEvent;
import net.md_5.bungee.connection.DownstreamBridge;
import net.md_5.bungee.packet.*; import net.md_5.bungee.packet.*;
public final class UserConnection extends GenericConnection implements ProxiedPlayer public final class UserConnection extends GenericConnection implements ProxiedPlayer
@ -38,16 +33,15 @@ public final class UserConnection extends GenericConnection implements ProxiedPl
private final PendingConnection pendingConnection; private final PendingConnection pendingConnection;
@Getter @Getter
private ServerConnection server; private ServerConnection server;
private UpstreamBridge upBridge;
private DownstreamBridge downBridge;
// reconnect stuff // reconnect stuff
private int clientEntityId; private int clientEntityId;
private int serverEntityId; private int serverEntityId;
private volatile boolean reconnecting; private volatile boolean reconnecting;
// ping stuff // ping stuff
private int trackingPingId; public int trackingPingId;
private long pingTime; public long pingTime;
@Getter @Getter
@Setter
private int ping = 1000; private int ping = 1000;
// Permissions // Permissions
private final Collection<String> groups = new HashSet<>(); private final Collection<String> groups = new HashSet<>();
@ -253,293 +247,4 @@ public final class UserConnection extends GenericConnection implements ProxiedPl
{ {
permissions.put( permission, value ); permissions.put( permission, value );
} }
private class UpstreamBridge extends Thread
{
public UpstreamBridge()
{
super( "Upstream Bridge - " + name );
}
@Override
public void run()
{
while ( !socket.isClosed() )
{
try
{
byte[] packet = stream.readPacket();
boolean sendPacket = true;
int id = Util.getId( packet );
switch ( id )
{
case 0x00:
if ( trackingPingId == new Packet0KeepAlive( packet ).id )
{
int newPing = (int) ( System.currentTimeMillis() - pingTime );
ProxyServer.getInstance().getTabListHandler().onPingChange( UserConnection.this, newPing );
ping = newPing;
}
break;
case 0x03:
Packet3Chat chat = new Packet3Chat( packet );
if ( chat.message.startsWith( "/" ) )
{
sendPacket = !ProxyServer.getInstance().getPluginManager().dispatchCommand( UserConnection.this, chat.message.substring( 1 ) );
} else
{
ChatEvent chatEvent = new ChatEvent( UserConnection.this, server, chat.message );
ProxyServer.getInstance().getPluginManager().callEvent( chatEvent );
sendPacket = !chatEvent.isCancelled();
}
break;
case 0xFA:
// Call the onPluginMessage event
PacketFAPluginMessage message = new PacketFAPluginMessage( packet );
// Might matter in the future
if ( message.tag.equals( "BungeeCord" ) )
{
continue;
}
PluginMessageEvent event = new PluginMessageEvent( UserConnection.this, server, message.tag, message.data );
ProxyServer.getInstance().getPluginManager().callEvent( event );
if ( event.isCancelled() )
{
continue;
}
break;
}
while ( !server.packetQueue.isEmpty() )
{
DefinedPacket p = server.packetQueue.poll();
if ( p != null )
{
server.stream.write( p );
}
}
EntityMap.rewrite( packet, clientEntityId, serverEntityId );
if ( sendPacket && !server.socket.isClosed() )
{
server.stream.write( packet );
}
try
{
Thread.sleep( BungeeCord.getInstance().config.getSleepTime() );
} catch ( InterruptedException ex )
{
}
} catch ( IOException ex )
{
disconnect( "Reached end of stream" );
} catch ( Exception ex )
{
disconnect( Util.exception( ex ) );
}
}
}
}
private class DownstreamBridge extends Thread
{
public DownstreamBridge()
{
super( "Downstream Bridge - " + name );
}
@Override
public void run()
{
try
{
outer:
while ( !reconnecting )
{
byte[] packet = server.stream.readPacket();
int id = Util.getId( packet );
switch ( id )
{
case 0x00:
trackingPingId = new Packet0KeepAlive( packet ).id;
pingTime = System.currentTimeMillis();
break;
case 0x03:
Packet3Chat chat = new Packet3Chat( packet );
ChatEvent chatEvent = new ChatEvent( server, UserConnection.this, chat.message );
ProxyServer.getInstance().getPluginManager().callEvent( chatEvent );
if ( chatEvent.isCancelled() )
{
continue;
}
break;
case 0xC9:
PacketC9PlayerListItem playerList = new PacketC9PlayerListItem( packet );
if ( !ProxyServer.getInstance().getTabListHandler().onListUpdate( UserConnection.this, playerList.username, playerList.online, playerList.ping ) )
{
continue;
}
break;
case 0xFA:
// Call the onPluginMessage event
PacketFAPluginMessage message = new PacketFAPluginMessage( packet );
DataInputStream in = new DataInputStream( new ByteArrayInputStream( message.data ) );
PluginMessageEvent event = new PluginMessageEvent( server, UserConnection.this, message.tag, message.data );
ProxyServer.getInstance().getPluginManager().callEvent( event );
if ( event.isCancelled() )
{
continue;
}
if ( message.tag.equals( "BungeeCord" ) )
{
String subChannel = in.readUTF();
if ( subChannel.equals( "Forward" ) )
{
String target = in.readUTF();
String channel = in.readUTF();
short len = in.readShort();
byte[] data = new byte[ len ];
in.readFully( data );
ByteArrayOutputStream b = new ByteArrayOutputStream();
DataOutputStream out = new DataOutputStream( b );
out.writeUTF( channel );
out.writeShort( data.length );
out.write( data );
if ( target.equals( "ALL" ) )
{
for ( ServerInfo server : BungeeCord.getInstance().getServers().values() )
{
server.sendData( "BungeeCord", b.toByteArray() );
}
} else
{
ServerInfo server = BungeeCord.getInstance().getServerInfo( target );
if ( server != null )
{
server.sendData( "BungeeCord", b.toByteArray() );
}
}
}
if ( subChannel.equals( "Connect" ) )
{
ServerInfo server = ProxyServer.getInstance().getServerInfo( in.readUTF() );
if ( server != null )
{
connect( server, true );
break outer;
}
}
if ( subChannel.equals( "IP" ) )
{
ByteArrayOutputStream b = new ByteArrayOutputStream();
DataOutputStream out = new DataOutputStream( b );
out.writeUTF( "IP" );
out.writeUTF( getAddress().getHostString() );
out.writeInt( getAddress().getPort() );
getServer().sendData( "BungeeCord", b.toByteArray() );
}
if ( subChannel.equals( "PlayerCount" ) )
{
ServerInfo server = ProxyServer.getInstance().getServerInfo( in.readUTF() );
if ( server != null )
{
ByteArrayOutputStream b = new ByteArrayOutputStream();
DataOutputStream out = new DataOutputStream( b );
out.writeUTF( "PlayerCount" );
out.writeUTF( server.getName() );
out.writeInt( server.getPlayers().size() );
getServer().sendData( "BungeeCord", b.toByteArray() );
}
}
if ( subChannel.equals( "PlayerList" ) )
{
ServerInfo server = ProxyServer.getInstance().getServerInfo( in.readUTF() );
if ( server != null )
{
ByteArrayOutputStream b = new ByteArrayOutputStream();
DataOutputStream out = new DataOutputStream( b );
out.writeUTF( "PlayerList" );
out.writeUTF( server.getName() );
StringBuilder sb = new StringBuilder();
for ( ProxiedPlayer p : server.getPlayers() )
{
sb.append( p.getName() );
sb.append( "," );
}
out.writeUTF( sb.substring( 0, sb.length() - 1 ) );
getServer().sendData( "BungeeCord", b.toByteArray() );
}
}
if ( subChannel.equals( "GetServers" ) )
{
ByteArrayOutputStream b = new ByteArrayOutputStream();
DataOutputStream out = new DataOutputStream( b );
out.writeUTF( "GetServers" );
StringBuilder sb = new StringBuilder();
for ( String server : ProxyServer.getInstance().getServers().keySet() )
{
sb.append( server );
sb.append( "," );
}
out.writeUTF( sb.substring( 0, sb.length() - 1 ) );
getServer().sendData( "BungeeCord", b.toByteArray() );
}
if ( subChannel.equals( "Message" ) )
{
ProxiedPlayer target = ProxyServer.getInstance().getPlayer( in.readUTF() );
if ( target != null )
{
target.sendMessage( in.readUTF() );
}
}
continue;
}
break;
case 0xFF:
disconnect( new PacketFFKick( packet ).message );
break outer;
}
while ( !packetQueue.isEmpty() )
{
DefinedPacket p = packetQueue.poll();
if ( p != null )
{
stream.write( p );
}
}
EntityMap.rewrite( packet, serverEntityId, clientEntityId );
stream.write( packet );
if ( nextServer != null )
{
connect( nextServer, true );
break outer;
}
}
} catch ( Exception ex )
{
disconnect( Util.exception( ex ) );
}
}
}
} }

17
proxy/src/main/java/net/md_5/bungee/connection/CancelSendSignal.java Normal file
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@ -0,0 +1,17 @@
package net.md_5.bungee.connection;
class CancelSendSignal extends Error
{
@Override
public synchronized Throwable initCause(Throwable cause)
{
return this;
}
@Override
public synchronized Throwable fillInStackTrace()
{
return this;
}
}

188
proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java Normal file
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@ -0,0 +1,188 @@
package net.md_5.bungee.connection;
import com.google.common.io.ByteArrayDataInput;
import com.google.common.io.ByteArrayDataOutput;
import com.google.common.io.ByteStreams;
import lombok.RequiredArgsConstructor;
import net.md_5.bungee.UserConnection;
import net.md_5.bungee.api.ProxyServer;
import net.md_5.bungee.api.config.ServerInfo;
import net.md_5.bungee.api.connection.ProxiedPlayer;
import net.md_5.bungee.api.event.ChatEvent;
import net.md_5.bungee.api.event.PluginMessageEvent;
import net.md_5.bungee.packet.Packet0KeepAlive;
import net.md_5.bungee.packet.Packet3Chat;
import net.md_5.bungee.packet.PacketC9PlayerListItem;
import net.md_5.bungee.packet.PacketFAPluginMessage;
import net.md_5.bungee.packet.PacketFFKick;
import net.md_5.bungee.packet.PacketHandler;
@RequiredArgsConstructor
public class DownstreamBridge extends PacketHandler
{
private final ProxyServer bungee;
private final UserConnection con;
@Override
public void handle(Packet0KeepAlive alive) throws Exception
{
con.trackingPingId = alive.id;
}
@Override
public void handle(Packet3Chat chat) throws Exception
{
ChatEvent chatEvent = new ChatEvent( con.getServer(), con, chat.message );
bungee.getPluginManager().callEvent( chatEvent );
if ( chatEvent.isCancelled() )
{
throw new CancelSendSignal();
}
}
@Override
public void handle(PacketC9PlayerListItem playerList) throws Exception
{
if ( !bungee.getTabListHandler().onListUpdate( con, playerList.username, playerList.online, playerList.ping ) )
{
throw new CancelSendSignal();
}
}
@Override
public void handle(PacketFAPluginMessage pluginMessage) throws Exception
{
ByteArrayDataInput in = ByteStreams.newDataInput( pluginMessage.data );
PluginMessageEvent event = new PluginMessageEvent( con.getServer(), con, pluginMessage.tag, pluginMessage.data.clone() );
if ( bungee.getPluginManager().callEvent( event ).isCancelled() )
{
throw new CancelSendSignal();
}
if ( pluginMessage.tag.equals( "BungeeCord" ) )
{
ByteArrayDataOutput out = ByteStreams.newDataOutput();
String subChannel = in.readUTF();
if ( subChannel.equals( "Forward" ) )
{
// Read data from server
String target = in.readUTF();
String channel = in.readUTF();
short len = in.readShort();
byte[] data = new byte[ len ];
in.readFully( data );
// Prepare new data to send
out.writeUTF( channel );
out.writeShort( data.length );
out.write( data );
byte[] payload = out.toByteArray();
// Null out stream, important as we don't want to send to ourselves
out = null;
if ( target.equals( "ALL" ) )
{
for ( ServerInfo server : bungee.getServers().values() )
{
if ( server != con.getServer().getInfo() )
{
server.sendData( "BungeeCord", payload );
}
}
} else
{
ServerInfo server = bungee.getServerInfo( target );
if ( server != null )
{
server.sendData( "BungeeCord", payload );
}
}
}
if ( subChannel.equals( "Connect" ) )
{
ServerInfo server = bungee.getServerInfo( in.readUTF() );
if ( server != null )
{
connect( server, true );
break outer;
}
}
if ( subChannel.equals( "IP" ) )
{
out.writeUTF( "IP" );
out.writeUTF( con.getAddress().getHostString() );
out.writeInt( con.getAddress().getPort() );
}
if ( subChannel.equals( "PlayerCount" ) )
{
ServerInfo server = bungee.getServerInfo( in.readUTF() );
if ( server != null )
{
out.writeUTF( "PlayerCount" );
out.writeUTF( server.getName() );
out.writeInt( server.getPlayers().size() );
}
}
if ( subChannel.equals( "PlayerList" ) )
{
ServerInfo server = bungee.getServerInfo( in.readUTF() );
if ( server != null )
{
out.writeUTF( "PlayerList" );
out.writeUTF( server.getName() );
StringBuilder sb = new StringBuilder();
for ( ProxiedPlayer p : server.getPlayers() )
{
sb.append( p.getName() );
sb.append( "," );
}
out.writeUTF( sb.substring( 0, sb.length() - 1 ) );
}
}
if ( subChannel.equals( "GetServers" ) )
{
out.writeUTF( "GetServers" );
StringBuilder sb = new StringBuilder();
for ( String server : bungee.getServers().keySet() )
{
sb.append( server );
sb.append( "," );
}
out.writeUTF( sb.substring( 0, sb.length() - 1 ) );
}
if ( subChannel.equals( "Message" ) )
{
ProxiedPlayer target = bungee.getPlayer( in.readUTF() );
if ( target != null )
{
target.sendMessage( in.readUTF() );
}
}
// Check we haven't set out to null, and we have written data, if so reply back back along the BungeeCord channel
if ( out != null )
{
byte[] b = out.toByteArray();
if ( b.length != 0 )
{
con.getServer().sendData( "BungeeCord", b );
}
}
}
}
@Override
public void handle(PacketFFKick kick) throws Exception
{
con.disconnect( "[Kicked] " + kick.message );
throw new CancelSendSignal();
}
}

64
proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java Normal file
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@ -0,0 +1,64 @@
package net.md_5.bungee.connection;
import lombok.RequiredArgsConstructor;
import net.md_5.bungee.UserConnection;
import net.md_5.bungee.api.ProxyServer;
import net.md_5.bungee.api.event.ChatEvent;
import net.md_5.bungee.api.event.PluginMessageEvent;
import net.md_5.bungee.packet.Packet0KeepAlive;
import net.md_5.bungee.packet.Packet3Chat;
import net.md_5.bungee.packet.PacketFAPluginMessage;
import net.md_5.bungee.packet.PacketHandler;
@RequiredArgsConstructor
public class UpstreamBridge extends PacketHandler
{
private final ProxyServer bungee;
private final UserConnection con;
@Override
public void handle(Packet0KeepAlive alive) throws Exception
{
if ( alive.id == con.trackingPingId )
{
int newPing = (int) ( System.currentTimeMillis() - con.pingTime );
bungee.getTabListHandler().onPingChange( con, newPing );
con.setPing( newPing );
}
}
@Override
public void handle(Packet3Chat chat) throws Exception
{
if ( chat.message.charAt( 0 ) == '/' )
{
if ( bungee.getPluginManager().dispatchCommand( con, chat.message.substring( 1 ) ) )
{
throw new CancelSendSignal();
}
} else
{
ChatEvent chatEvent = new ChatEvent( con, con.getServer(), chat.message );
if ( bungee.getPluginManager().callEvent( chatEvent ).isCancelled() )
{
throw new CancelSendSignal();
}
}
}
@Override
public void handle(PacketFAPluginMessage pluginMessage) throws Exception
{
if ( pluginMessage.tag.equals( "BungeeCord" ) )
{
throw new CancelSendSignal();
}
PluginMessageEvent event = new PluginMessageEvent( con, con.getServer(), pluginMessage.tag, pluginMessage.data.clone() );
if ( bungee.getPluginManager().callEvent( event ).isCancelled() )
{
throw new CancelSendSignal();
}
}
}