--- ../src-base/minecraft/net/minecraft/network/NetworkManager.java
+++ ../src-work/minecraft/net/minecraft/network/NetworkManager.java
@@ -25,6 +25,8 @@
 import java.net.InetAddress;
 import java.net.SocketAddress;
 import java.util.Queue;
+import java.util.UUID;
+
 import javax.crypto.SecretKey;
 import net.minecraft.util.ChatComponentTranslation;
 import net.minecraft.util.CryptManager;
@@ -38,6 +40,8 @@
 import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.Marker;
 import org.apache.logging.log4j.MarkerManager;
+import com.mojang.authlib.properties.Property;
+import com.google.common.collect.ImmutableSet; // Spigot
 
 public class NetworkManager extends SimpleChannelInboundHandler
 {
@@ -54,13 +58,32 @@
     private final Queue receivedPacketsQueue = Queues.newConcurrentLinkedQueue();
     private final Queue outboundPacketsQueue = Queues.newConcurrentLinkedQueue();
     private Channel channel;
-    private SocketAddress socketAddress;
+    // Spigot start
+    public SocketAddress socketAddress;
+    public Property[] spoofedProfile;
+    public UUID spoofedUUID;
+    // Spigot end
     private INetHandler netHandler;
     private EnumConnectionState connectionState;
     private IChatComponent terminationReason;
     private boolean field_152463_r;
     private static final String __OBFID = "CL_00001240";
 
+    // Spigot Start
+    public static final AttributeKey<Integer> protocolVersion = new AttributeKey<Integer>("protocol_version");
+    public static final ImmutableSet<Integer> SUPPORTED_VERSIONS = ImmutableSet.of(4, 5);
+    public static final int CURRENT_VERSION = 5;
+    public static int getVersion(Channel attr)
+    {
+        Integer ver = attr.attr( protocolVersion ).get();
+        return ( ver != null ) ? ver : CURRENT_VERSION;
+    }
+    public int getVersion()
+    {
+        return getVersion( this.channel );
+    }
+    // Spigot End
+
     public NetworkManager(boolean p_i45147_1_)
     {
         this.isClientSide = p_i45147_1_;
@@ -71,6 +94,7 @@
         super.channelActive(p_channelActive_1_);
         this.channel = p_channelActive_1_.channel();
         this.socketAddress = this.channel.remoteAddress();
+        this.field_152463_r = false; // Spigot
         this.setConnectionState(EnumConnectionState.HANDSHAKING);
     }
 
@@ -208,7 +232,15 @@
         {
             for (int i = 1000; !this.receivedPacketsQueue.isEmpty() && i >= 0; --i)
             {
-                Packet packet = (Packet)this.receivedPacketsQueue.poll();
+                Packet packet = (Packet) this.receivedPacketsQueue.poll();
+
+                // CraftBukkit start
+                if (!this.isChannelOpen() || !this.channel.config().isAutoRead())   // Should be isConnected
+                {
+                    continue;
+                }
+
+                // CraftBukkit end
                 packet.processPacket(this.netHandler);
             }
 
@@ -225,6 +257,8 @@
 
     public void closeChannel(IChatComponent p_150718_1_)
     {
+        this.field_152463_r = false; // Spigot
+
         if (this.channel.isOpen())
         {
             this.channel.close();
@@ -254,7 +288,7 @@
                 {
                     ;
                 }
-
+                try { p_initChannel_1_.config().setOption(ChannelOption.SO_KEEPALIVE, true); } catch (ChannelException ignored) {}
                 try
                 {
                     p_initChannel_1_.config().setOption(ChannelOption.TCP_NODELAY, Boolean.valueOf(false));
@@ -322,6 +356,13 @@
         return channel;
     }
 
+    // Spigot Start
+    public SocketAddress getRawAddress()
+    {
+        return this.channel.remoteAddress();
+    }
+    // Spigot End
+
     static class InboundHandlerTuplePacketListener
         {
             private final Packet field_150774_a;