28 lines
1.2 KiB
Diff
28 lines
1.2 KiB
Diff
From 81f21d28642e50e9fae1f7feadbb2882e7820f40 Mon Sep 17 00:00:00 2001
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From: Benjamin James Harrison-Sims <tehrainbowguy@gmail.com>
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Date: Sun, 14 Apr 2013 21:19:57 +0500
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Subject: [PATCH] Prevent handshake spam from invalid names.
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diff --git a/src/main/java/net/minecraft/server/Packet2Handshake.java b/src/main/java/net/minecraft/server/Packet2Handshake.java
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index 343af93..26de0b5 100644
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--- a/src/main/java/net/minecraft/server/Packet2Handshake.java
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+++ b/src/main/java/net/minecraft/server/Packet2Handshake.java
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@@ -14,11 +14,13 @@ public class Packet2Handshake extends Packet {
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public Packet2Handshake() {}
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+ public static final java.util.regex.Pattern validName = java.util.regex.Pattern.compile("^[a-zA-Z0-9_-]{2,16}$");
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public void a(DataInputStream datainputstream) throws IOException { // CraftBukkit - throws IOException
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this.a = datainputstream.readByte();
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this.b = a(datainputstream, 16);
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this.c = a(datainputstream, 255);
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this.d = datainputstream.readInt();
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+ if(!validName.matcher(this.b).matches()) throw new IOException("Invalid name!"); // Spigot
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}
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public void a(DataOutputStream dataoutputstream) throws IOException { // CraftBukkit - throws IOException
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--
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1.8.1.2
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