Added ability to intercept all chat and to set TabList names

src/main/java/net/md_5/bungee/BungeeCord.java

@@ -15,15 +15,7 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.logging.Level;
 import static net.md_5.bungee.Logger.$;
-import net.md_5.bungee.command.Command;
+import net.md_5.bungee.command.*;
-import net.md_5.bungee.command.CommandAlert;
-import net.md_5.bungee.command.CommandEnd;
-import net.md_5.bungee.command.CommandIP;
-import net.md_5.bungee.command.CommandList;
-import net.md_5.bungee.command.CommandMotd;
-import net.md_5.bungee.command.CommandSender;
-import net.md_5.bungee.command.CommandServer;
-import net.md_5.bungee.command.ConsoleCommandSender;
 import net.md_5.bungee.packet.DefinedPacket;
 import net.md_5.bungee.packet.PacketFAPluginMessage;
 import net.md_5.bungee.plugin.JavaPluginManager;
@@ -37,10 +29,11 @@ import net.md_5.bungee.tablist.TabListHandler;
  */
 public class BungeeCord
 {
+
     /**
      * Server protocol version.
      */
-    public static final int PROTOCOL_VERSION= 49;
+    public static final int PROTOCOL_VERSION = 49;
     /**
      * Server game version.
      */

src/main/java/net/md_5/bungee/GenericConnection.java

@@ -21,6 +21,7 @@ public class GenericConnection
     protected final PacketInputStream in;
     protected final OutputStream out;
     public String username;
+    public String tabListName;
 
     /**
      * Close the socket with the specified reason.

src/main/java/net/md_5/bungee/ServerConnection.java

@@ -3,21 +3,16 @@ package net.md_5.bungee;
 import java.io.OutputStream;
 import java.net.InetSocketAddress;
 import java.net.Socket;
-import java.security.PublicKey;
 import java.util.Queue;
 import java.util.concurrent.ConcurrentLinkedQueue;
-import javax.crypto.SecretKey;
 import net.md_5.bungee.packet.DefinedPacket;
 import net.md_5.bungee.packet.Packet1Login;
 import net.md_5.bungee.packet.Packet2Handshake;
 import net.md_5.bungee.packet.PacketCDClientStatus;
 import net.md_5.bungee.packet.PacketFAPluginMessage;
-import net.md_5.bungee.packet.PacketFCEncryptionResponse;
 import net.md_5.bungee.packet.PacketFDEncryptionRequest;
 import net.md_5.bungee.packet.PacketFFKick;
 import net.md_5.bungee.packet.PacketInputStream;
-import org.bouncycastle.crypto.io.CipherInputStream;
-import org.bouncycastle.crypto.io.CipherOutputStream;
 
 /**
  * Class representing a connection from the proxy to the server; ie upstream.

src/main/java/net/md_5/bungee/UserConnection.java

@@ -10,18 +10,11 @@ import java.util.List;
 import java.util.Queue;
 import java.util.concurrent.ConcurrentLinkedQueue;
 import net.md_5.bungee.command.CommandSender;
-import net.md_5.bungee.packet.DefinedPacket;
+import net.md_5.bungee.packet.*;
-import net.md_5.bungee.packet.Packet0KeepAlive;
+import net.md_5.bungee.plugin.ChatEvent;
-import net.md_5.bungee.packet.Packet1Login;
-import net.md_5.bungee.packet.Packet2Handshake;
-import net.md_5.bungee.packet.Packet3Chat;
-import net.md_5.bungee.packet.Packet9Respawn;
-import net.md_5.bungee.packet.PacketC9PlayerListItem;
-import net.md_5.bungee.packet.PacketFAPluginMessage;
-import net.md_5.bungee.packet.PacketInputStream;
-import net.md_5.bungee.plugin.ServerConnectEvent;
 import net.md_5.bungee.plugin.PluginMessageEvent;
 import net.md_5.bungee.plugin.PluginMessageEvent.Destination;
+import net.md_5.bungee.plugin.ServerConnectEvent;
 
 public class UserConnection extends GenericConnection implements CommandSender
 {
@@ -47,11 +40,19 @@ public class UserConnection extends GenericConnection implements CommandSender
         super(socket, in, out);
         this.handshake = handshake;
         username = handshake.username;
+        tabListName = handshake.username;
         this.loginPackets = loginPackets;
         BungeeCord.instance.connections.put(username, this);
         BungeeCord.instance.tabListHandler.onJoin(this);
     }
 
+    public void setTabListName(String newName)
+    {
+        BungeeCord.instance.tabListHandler.onDisconnect(this);
+        tabListName = newName;
+        BungeeCord.instance.tabListHandler.onJoin(this);
+    }
+
     public void connect(String server)
     {
         ServerConnectEvent event = new ServerConnectEvent(this.server == null, this, server);
@@ -171,7 +172,7 @@ public class UserConnection extends GenericConnection implements CommandSender
 
     public void sendPluginMessage(String tag, byte[] data)
     {
-         server.packetQueue.add(new PacketFAPluginMessage(tag, data));
+        server.packetQueue.add(new PacketFAPluginMessage(tag, data));
     }
 
     @Override
@@ -219,6 +220,12 @@ public class UserConnection extends GenericConnection implements CommandSender
                         if (message.startsWith("/"))
                         {
                             sendPacket = !BungeeCord.instance.dispatchCommand(message.substring(1), UserConnection.this);
+                        } else
+                        {
+                            ChatEvent chatEvent = new ChatEvent(ChatEvent.Destination.SERVER, instance);
+                            chatEvent.setText(message);
+                            BungeeCord.instance.pluginManager.onChat(chatEvent);
+                            sendPacket = !chatEvent.isCancelled();
                         }
                     } else if (id == 0x00)
                     {
@@ -304,6 +311,17 @@ public class UserConnection extends GenericConnection implements CommandSender
                     {
                         trackingPingId = new Packet0KeepAlive(packet).id;
                         pingTime = System.currentTimeMillis();
+                    } else if (id == 0x03)
+                    {
+                        Packet3Chat chat = new Packet3Chat(packet);
+                        String message = chat.message;
+                        ChatEvent chatEvent = new ChatEvent(ChatEvent.Destination.CLIENT, instance);
+                        chatEvent.setText(message);
+                        BungeeCord.instance.pluginManager.onChat(chatEvent);
+                        if (chatEvent.isCancelled())
+                        {
+                            continue;
+                        }
                     } else if (id == 0xC9)
                     {
                         if (!BungeeCord.instance.tabListHandler.onPacketC9(UserConnection.this, new PacketC9PlayerListItem(packet)))

src/main/java/net/md_5/bungee/plugin/ChatEvent.java

@@ -0,0 +1,36 @@
+package net.md_5.bungee.plugin;
+
+import lombok.Data;
+import net.md_5.bungee.UserConnection;
+
+@Data
+public class ChatEvent implements Cancellable
+{
+
+    /**
+     * Canceled state.
+     */
+    private boolean cancelled;
+    /**
+     * Whether this packet is destined for the server or the client.
+     */
+    private final Destination destination;
+    /**
+     * User in question.
+     */
+    private final UserConnection connection;
+    /**
+     * Text contained in this chat.
+     */
+    private String text;
+
+    /**
+     * An enum that signifies the destination for this packet.
+     */
+    public enum Destination
+    {
+
+        SERVER,
+        CLIENT
+    }
+}

src/main/java/net/md_5/bungee/plugin/JavaPlugin.java

@@ -58,6 +58,13 @@ public abstract class JavaPlugin
     {
     }
 
+    /**
+     * Called when a chat message is sent to the client or server
+     */
+    public void onChat(ChatEvent event)
+    {
+    }
+
     /**
      * Register a command for use with the proxy.
      */

src/main/java/net/md_5/bungee/plugin/JavaPluginManager.java

@@ -115,4 +115,13 @@ public class JavaPluginManager extends JavaPlugin
             p.onPluginMessage(event);
         }
     }
+
+    @Override
+    public void onChat(ChatEvent event)
+    {
+        for (JavaPlugin p : plugins)
+        {
+            p.onChat(event);
+        }
+    }
 }

src/main/java/net/md_5/bungee/plugin/PluginMessageEvent.java

@@ -9,6 +9,7 @@ import net.md_5.bungee.UserConnection;
 @Data
 public class PluginMessageEvent implements Cancellable
 {
+
     /**
      * Canceled state.
      */
@@ -39,6 +40,7 @@ public class PluginMessageEvent implements Cancellable
      */
     public enum Destination
     {
+
         SERVER,
         CLIENT
     }

src/main/java/net/md_5/bungee/tablist/GlobalPingTabList.java

@@ -3,7 +3,6 @@ package net.md_5.bungee.tablist;
 import java.util.Collections;
 import java.util.Map;
 import java.util.WeakHashMap;
-
 import net.md_5.bungee.BungeeCord;
 import net.md_5.bungee.UserConnection;
 import net.md_5.bungee.packet.PacketC9PlayerListItem;
@@ -20,7 +19,7 @@ public class GlobalPingTabList extends GlobalTabList
         Integer lastPing = lastPings.get(con);
         if (lastPing == null || (ping - PING_THRESHOLD > lastPing && ping + PING_THRESHOLD < lastPing))
         {
-            BungeeCord.instance.broadcast(new PacketC9PlayerListItem(con.username, true, ping));
+            BungeeCord.instance.broadcast(new PacketC9PlayerListItem(con.tabListName, true, ping));
             lastPings.put(con, ping);
         }
     }

src/main/java/net/md_5/bungee/tablist/GlobalTabList.java

@@ -3,7 +3,6 @@ package net.md_5.bungee.tablist;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.Set;
-
 import net.md_5.bungee.BungeeCord;
 import net.md_5.bungee.UserConnection;
 import net.md_5.bungee.packet.PacketC9PlayerListItem;
@@ -18,7 +17,7 @@ public class GlobalTabList implements TabListHandler
     {
         for (UserConnection c : BungeeCord.instance.connections.values())
         {
-            con.packetQueue.add(new PacketC9PlayerListItem(c.username, true, c.getPing()));
+            con.packetQueue.add(new PacketC9PlayerListItem(c.tabListName, true, c.getPing()));
         }
     }
 
@@ -32,7 +31,7 @@ public class GlobalTabList implements TabListHandler
     {
         if (!sentPings.contains(con))
         {
-            BungeeCord.instance.broadcast(new PacketC9PlayerListItem(con.username, true, con.getPing()));
+            BungeeCord.instance.broadcast(new PacketC9PlayerListItem(con.tabListName, true, con.getPing()));
             sentPings.add(con);
         }
     }
@@ -40,7 +39,7 @@ public class GlobalTabList implements TabListHandler
     @Override
     public void onDisconnect(final UserConnection con)
     {
-        BungeeCord.instance.broadcast(new PacketC9PlayerListItem(con.username, false, 9999));
+        BungeeCord.instance.broadcast(new PacketC9PlayerListItem(con.tabListName, false, 9999));
         sentPings.remove(con);
     }
 

src/main/java/net/md_5/bungee/tablist/ServerUniqueTabList.java

@@ -5,7 +5,6 @@ import java.util.LinkedHashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.WeakHashMap;
-
 import net.md_5.bungee.UserConnection;
 import net.md_5.bungee.packet.PacketC9PlayerListItem;