Increase packet limit from 31 KB to 31 MB for 1.7

This only affects people using ProtocolSupport with 1.7,
and shouldn't make anyone else vulnerable.
This commit is untested, and may have bugs.

Fixes #63
Fixes #49

PaperSpigot-Server-Patches/0002-NMS-Imports.patch

@@ -1,4 +1,4 @@
-From 7fee9dc3034109162551f2a2470f26ad2d0ce71b Mon Sep 17 00:00:00 2001
+From ffe864216f308380e78fc7cdc36d13000aebb758 Mon Sep 17 00:00:00 2001
 From: Techcable <Techcable@outlook.com>
 Date: Sun, 16 Aug 2015 12:18:44 -0700
 Subject: [PATCH] NMS Imports
@@ -8,7 +8,7 @@ Only use code decompiled with BuildTools
 
 diff --git a/src/main/java/net/minecraft/server/BlockState.java b/src/main/java/net/minecraft/server/BlockState.java
 new file mode 100644
-index 0000000..3cada5a
+index 00000000..3cada5af
 --- /dev/null
 +++ b/src/main/java/net/minecraft/server/BlockState.java
 @@ -0,0 +1,42 @@
@@ -56,7 +56,7 @@ index 0000000..3cada5a
 +}
 diff --git a/src/main/java/net/minecraft/server/BlockStateBoolean.java b/src/main/java/net/minecraft/server/BlockStateBoolean.java
 new file mode 100644
-index 0000000..7fb0960
+index 00000000..7fb09600
 --- /dev/null
 +++ b/src/main/java/net/minecraft/server/BlockStateBoolean.java
 @@ -0,0 +1,29 @@
@@ -91,7 +91,7 @@ index 0000000..7fb0960
 +}
 diff --git a/src/main/java/net/minecraft/server/BlockStateEnum.java b/src/main/java/net/minecraft/server/BlockStateEnum.java
 new file mode 100644
-index 0000000..0b555df
+index 00000000..0b555dff
 --- /dev/null
 +++ b/src/main/java/net/minecraft/server/BlockStateEnum.java
 @@ -0,0 +1,63 @@
@@ -160,7 +160,7 @@ index 0000000..0b555df
 +}
 diff --git a/src/main/java/net/minecraft/server/BlockStateInteger.java b/src/main/java/net/minecraft/server/BlockStateInteger.java
 new file mode 100644
-index 0000000..4e7e489
+index 00000000..4e7e489c
 --- /dev/null
 +++ b/src/main/java/net/minecraft/server/BlockStateInteger.java
 @@ -0,0 +1,67 @@
@@ -233,7 +233,7 @@ index 0000000..4e7e489
 +}
 diff --git a/src/main/java/net/minecraft/server/BlockStateList.java b/src/main/java/net/minecraft/server/BlockStateList.java
 new file mode 100644
-index 0000000..8a815a6
+index 00000000..8a815a64
 --- /dev/null
 +++ b/src/main/java/net/minecraft/server/BlockStateList.java
 @@ -0,0 +1,191 @@
@@ -430,7 +430,7 @@ index 0000000..8a815a6
 +}
 diff --git a/src/main/java/net/minecraft/server/CommandScoreboard.java b/src/main/java/net/minecraft/server/CommandScoreboard.java
 new file mode 100644
-index 0000000..27d08a7
+index 00000000..27d08a7d
 --- /dev/null
 +++ b/src/main/java/net/minecraft/server/CommandScoreboard.java
 @@ -0,0 +1,1003 @@
@@ -1439,7 +1439,7 @@ index 0000000..27d08a7
 +}
 diff --git a/src/main/java/net/minecraft/server/EULA.java b/src/main/java/net/minecraft/server/EULA.java
 new file mode 100644
-index 0000000..c872029
+index 00000000..c872029d
 --- /dev/null
 +++ b/src/main/java/net/minecraft/server/EULA.java
 @@ -0,0 +1,62 @@
@@ -1507,7 +1507,7 @@ index 0000000..c872029
 +}
 diff --git a/src/main/java/net/minecraft/server/IBlockState.java b/src/main/java/net/minecraft/server/IBlockState.java
 new file mode 100644
-index 0000000..7e35d33
+index 00000000..7e35d335
 --- /dev/null
 +++ b/src/main/java/net/minecraft/server/IBlockState.java
 @@ -0,0 +1,14 @@
@@ -1525,9 +1525,60 @@ index 0000000..7e35d33
 +
 +    String a(T t0);
 +}
+diff --git a/src/main/java/net/minecraft/server/PacketDecoder.java b/src/main/java/net/minecraft/server/PacketDecoder.java
+new file mode 100644
+index 00000000..bbebe3a9
+--- /dev/null
++++ b/src/main/java/net/minecraft/server/PacketDecoder.java
+@@ -0,0 +1,45 @@
++package net.minecraft.server;
++
++import io.netty.buffer.ByteBuf;
++import io.netty.channel.ChannelHandlerContext;
++import io.netty.handler.codec.ByteToMessageDecoder;
++import java.io.IOException;
++import java.util.List;
++import org.apache.logging.log4j.LogManager;
++import org.apache.logging.log4j.Logger;
++import org.apache.logging.log4j.Marker;
++import org.apache.logging.log4j.MarkerManager;
++
++public class PacketDecoder extends ByteToMessageDecoder {
++
++    private static final Logger a = LogManager.getLogger();
++    private static final Marker b = MarkerManager.getMarker("PACKET_RECEIVED", NetworkManager.b);
++    private final EnumProtocolDirection c;
++
++    public PacketDecoder(EnumProtocolDirection enumprotocoldirection) {
++        this.c = enumprotocoldirection;
++    }
++
++    protected void decode(ChannelHandlerContext channelhandlercontext, ByteBuf bytebuf, List<Object> list) throws Exception {
++        if (bytebuf.readableBytes() != 0) {
++            PacketDataSerializer packetdataserializer = new PacketDataSerializer(bytebuf);
++            int i = packetdataserializer.e();
++            Packet packet = ((EnumProtocol) channelhandlercontext.channel().attr(NetworkManager.c).get()).a(this.c, i);
++
++            if (packet == null) {
++                throw new IOException("Bad packet id " + i);
++            } else {
++                packet.a(packetdataserializer);
++                if (packetdataserializer.readableBytes() > 0) {
++                    throw new IOException("Packet " + ((EnumProtocol) channelhandlercontext.channel().attr(NetworkManager.c).get()).a() + "/" + i + " (" + packet.getClass().getSimpleName() + ") was larger than I expected, found " + packetdataserializer.readableBytes() + " bytes extra whilst reading packet " + i);
++                } else {
++                    list.add(packet);
++                    if (PacketDecoder.a.isDebugEnabled()) {
++                        PacketDecoder.a.debug(PacketDecoder.b, " IN: [{}:{}] {}", new Object[] { channelhandlercontext.channel().attr(NetworkManager.c).get(), Integer.valueOf(i), packet.getClass().getName()});
++                    }
++
++                }
++            }
++        }
++    }
++}
 diff --git a/src/main/java/net/minecraft/server/PacketLoginInEncryptionBegin.java b/src/main/java/net/minecraft/server/PacketLoginInEncryptionBegin.java
 new file mode 100644
-index 0000000..6385ab2
+index 00000000..6385ab2d
 --- /dev/null
 +++ b/src/main/java/net/minecraft/server/PacketLoginInEncryptionBegin.java
 @@ -0,0 +1,39 @@
@@ -1571,5 +1622,5 @@ index 0000000..6385ab2
 +    }
 +}
 -- 
-2.8.0
+2.13.0