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IllegalPacketEvent - Resolves #419

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Fire an event when an illegal packet is received to let plugins handle it

Lets plugins change the kick message and if it should kick or not.
This commit is contained in:
Aikar
2016-12-21 21:22:02 -05:00
parent 038cde138a
commit 06e82119e2
2 changed files with 148 additions and 0 deletions
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69
Spigot-Server-Patches/IllegalPacketEvent.patch Normal file
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@@ -0,0 +1,69 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 23 Jun 2016 23:33:57 -0400
Subject: [PATCH] IllegalPacketEvent
Fired for invalid data from players that represents hacking attempts
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index c57ab1a9c..06f85c46f 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -0,0 +0,0 @@ import org.bukkit.inventory.CraftingInventory;
import org.bukkit.inventory.EquipmentSlot;
import org.bukkit.inventory.InventoryView;
import org.bukkit.util.NumberConversions;
+import com.destroystokyo.paper.event.player.IllegalPacketEvent; // Paper
import co.aikar.timings.MinecraftTimings; // Paper
// CraftBukkit end
@@ -0,0 +0,0 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
CraftEventFactory.handleEditBookEvent(player, itemstack1); // CraftBukkit
}
} catch (Exception exception) {
- PlayerConnection.LOGGER.error("Couldn\'t handle book info", exception);
- this.disconnect("Invalid book data!"); // CraftBukkit
+ IllegalPacketEvent.process(player.getBukkitEntity(), "InvalidBookEdit", "Invalid book data!", exception); // Paper
}
} else {
String s1;
@@ -0,0 +0,0 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
CraftEventFactory.handleEditBookEvent(player, itemstack2); // CraftBukkit
}
} catch (Exception exception1) {
- PlayerConnection.LOGGER.error("Couldn\'t sign book", exception1);
- this.disconnect("Invalid book data!"); // CraftBukkit
+ IllegalPacketEvent.process(player.getBukkitEntity(), "InvalidBookSign", "Invalid book data!", exception1); // Paper
}
} else if ("MC|TrSel".equals(s)) {
try {
@@ -0,0 +0,0 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
((ContainerMerchant) container).d(j);
}
} catch (Exception exception2) {
- PlayerConnection.LOGGER.error("Couldn\'t select trade", exception2);
- this.disconnect("Invalid trade data!"); // CraftBukkit
+ IllegalPacketEvent.process(player.getBukkitEntity(), "InvalidTrade", "Invalid trade data!", exception2); // Paper
}
} else {
TileEntity tileentity;
@@ -0,0 +0,0 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
iinventory.update();
}
} catch (Exception exception5) {
- PlayerConnection.LOGGER.error("Couldn\'t set beacon", exception5);
- this.disconnect("Invalid beacon data!"); // CraftBukkit
+ IllegalPacketEvent.process(player.getBukkitEntity(), "InvalidBeacon", "Invalid beacon data!", exception5); // Paper
}
}
} else if ("MC|ItemName".equals(s)) {
@@ -0,0 +0,0 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
this.player.playerConnection.sendPacket(new PacketPlayOutSetSlot(-2, k, this.player.inventory.getItem(k)));
this.player.playerConnection.sendPacket(new PacketPlayOutHeldItemSlot(this.player.inventory.itemInHandIndex));
} catch (Exception exception7) {
- PlayerConnection.LOGGER.error("Couldn\'t pick item", exception7);
+ IllegalPacketEvent.process(player.getBukkitEntity(), "InvalidPickItem", "Invalid PickItem", exception7); // Paper
}
}
// CraftBukkit start
--