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--- a/net/minecraft/server/HandshakeListener.java
+++ b/net/minecraft/server/HandshakeListener.java
@@ -1,7 +1,17 @@
package net.minecraft.server;
+// CraftBukkit start
+import java.net.InetAddress;
+import java.util.HashMap;
+// CraftBukkit end
+
public class HandshakeListener implements PacketHandshakingInListener {
+ // CraftBukkit start - add fields
+ private static final HashMap<InetAddress, Long> throttleTracker = new HashMap<InetAddress, Long>();
+ private static int throttleCounter = 0;
+ // CraftBukkit end
+
private final MinecraftServer a;
private final NetworkManager b;
@@ -11,21 +21,58 @@
}
public void a(PacketHandshakingInSetProtocol packethandshakinginsetprotocol) {
+ this.b.channel.pipeline().get(PacketEncoder.class).version = packethandshakinginsetprotocol.b(); // CraftBukkit
switch (HandshakeListener.SyntheticClass_1.a[packethandshakinginsetprotocol.a().ordinal()]) {
case 1:
this.b.setProtocol(EnumProtocol.LOGIN);
ChatComponentText chatcomponenttext;
+ // CraftBukkit start - Connection throttle
+ try {
+ long currentTime = System.currentTimeMillis();
+ long connectionThrottle = MinecraftServer.getServer().server.getConnectionThrottle();
+ InetAddress address = ((java.net.InetSocketAddress) this.b.getSocketAddress()).getAddress();
+
+ synchronized (throttleTracker) {
+ if (throttleTracker.containsKey(address) && !"127.0.0.1".equals(address.getHostAddress()) && currentTime - throttleTracker.get(address) < connectionThrottle) {
+ throttleTracker.put(address, currentTime);
+ chatcomponenttext = new ChatComponentText("Connection throttled! Please wait before reconnecting.");
+ this.b.sendPacket(new PacketLoginOutDisconnect(chatcomponenttext));
+ this.b.close(chatcomponenttext);
+ return;
+ }
+
+ throttleTracker.put(address, currentTime);
+ throttleCounter++;
+ if (throttleCounter > 200) {
+ throttleCounter = 0;
+
+ // Cleanup stale entries
+ java.util.Iterator iter = throttleTracker.entrySet().iterator();
+ while (iter.hasNext()) {
+ java.util.Map.Entry<InetAddress, Long> entry = (java.util.Map.Entry) iter.next();
+ if (entry.getValue() > connectionThrottle) {
+ iter.remove();
+ }
+ }
+ }
+ }
+ } catch (Throwable t) {
+ org.apache.logging.log4j.LogManager.getLogger().debug("Failed to check connection throttle", t);
+ }
+ // CraftBukkit end
+
if (packethandshakinginsetprotocol.b() > 109) {
chatcomponenttext = new ChatComponentText("Outdated server! I\'m still on 1.9.2");
this.b.sendPacket(new PacketLoginOutDisconnect(chatcomponenttext));
this.b.close(chatcomponenttext);
- } else if (packethandshakinginsetprotocol.b() < 109) {
+ } else if (packethandshakinginsetprotocol.b() < 107) {
chatcomponenttext = new ChatComponentText("Outdated client! Please use 1.9.2");
this.b.sendPacket(new PacketLoginOutDisconnect(chatcomponenttext));
this.b.close(chatcomponenttext);
} else {
this.b.setPacketListener(new LoginListener(this.a, this.b));
+ ((LoginListener) this.b.i()).hostname = packethandshakinginsetprotocol.hostname + ":" + packethandshakinginsetprotocol.port; // CraftBukkit - set hostname
}
break;
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