mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-04 22:14:40 +01:00
69 lines
3.5 KiB
Diff
69 lines
3.5 KiB
Diff
--- a/net/minecraft/server/HandshakeListener.java
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+++ b/net/minecraft/server/HandshakeListener.java
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@@ -1,7 +1,16 @@
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package net.minecraft.server;
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+// CraftBukkit start
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+import java.net.InetAddress;
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+import java.util.HashMap;
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+// CraftBukkit end
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+
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public class HandshakeListener implements PacketHandshakingInListener {
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+ // CraftBukkit start - add fields
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+ private static final HashMap<InetAddress, Long> throttleTracker = new HashMap<InetAddress, Long>();
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+ private static int throttleCounter = 0;
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+ // CraftBukkit end
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private static final IChatBaseComponent a = new ChatComponentText("Ignoring status request");
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private final MinecraftServer b;
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private final NetworkManager c;
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@@ -18,6 +27,41 @@
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this.c.setProtocol(EnumProtocol.LOGIN);
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ChatMessage chatmessage;
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+ // CraftBukkit start - Connection throttle
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+ try {
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+ long currentTime = System.currentTimeMillis();
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+ long connectionThrottle = this.b.server.getConnectionThrottle();
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+ InetAddress address = ((java.net.InetSocketAddress) this.c.getSocketAddress()).getAddress();
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+
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+ synchronized (throttleTracker) {
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+ if (throttleTracker.containsKey(address) && !"127.0.0.1".equals(address.getHostAddress()) && currentTime - throttleTracker.get(address) < connectionThrottle) {
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+ throttleTracker.put(address, currentTime);
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+ chatmessage = new ChatMessage("Connection throttled! Please wait before reconnecting.");
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+ this.c.sendPacket(new PacketLoginOutDisconnect(chatmessage));
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+ this.c.close(chatmessage);
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+ return;
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+ }
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+
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+ throttleTracker.put(address, currentTime);
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+ throttleCounter++;
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+ if (throttleCounter > 200) {
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+ throttleCounter = 0;
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+
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+ // Cleanup stale entries
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+ java.util.Iterator iter = throttleTracker.entrySet().iterator();
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+ while (iter.hasNext()) {
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+ java.util.Map.Entry<InetAddress, Long> entry = (java.util.Map.Entry) iter.next();
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+ if (entry.getValue() > connectionThrottle) {
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+ iter.remove();
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+ }
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+ }
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+ }
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+ }
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+ } catch (Throwable t) {
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+ org.apache.logging.log4j.LogManager.getLogger().debug("Failed to check connection throttle", t);
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+ }
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+ // CraftBukkit end
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+
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if (packethandshakinginsetprotocol.c() > SharedConstants.getGameVersion().getProtocolVersion()) {
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chatmessage = new ChatMessage("multiplayer.disconnect.outdated_server", new Object[]{SharedConstants.getGameVersion().getName()});
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this.c.sendPacket(new PacketLoginOutDisconnect(chatmessage));
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@@ -28,6 +72,7 @@
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this.c.close(chatmessage);
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} else {
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this.c.setPacketListener(new LoginListener(this.b, this.c));
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+ ((LoginListener) this.c.j()).hostname = packethandshakinginsetprotocol.hostname + ":" + packethandshakinginsetprotocol.port; // CraftBukkit - set hostname
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}
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break;
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case STATUS:
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