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Old / New Version Support.
This adds support for newer / older Minecraft versions. At present it supports protocol versions 4 and 5 (1.7.2-1.7.8).
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md_5
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165
CraftBukkit-Patches/0124-Old-New-Version-Support.patch
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165
CraftBukkit-Patches/0124-Old-New-Version-Support.patch
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From 465e79587b965603307f8a3497f552dd463137cc Mon Sep 17 00:00:00 2001
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From: md_5 <git@md-5.net>
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Date: Sat, 12 Apr 2014 15:11:15 +1000
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Subject: [PATCH] Old / New Version Support.
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This adds support for newer / older Minecraft versions.
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At present it supports protocol versions 4 and 5 (1.7.2-1.7.8).
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diff --git a/src/main/java/net/minecraft/server/HandshakeListener.java b/src/main/java/net/minecraft/server/HandshakeListener.java
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index c738ab5..ec44fe3 100644
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--- a/src/main/java/net/minecraft/server/HandshakeListener.java
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+++ b/src/main/java/net/minecraft/server/HandshakeListener.java
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@@ -24,6 +24,7 @@ public class HandshakeListener implements PacketHandshakingInListener {
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}
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public void a(PacketHandshakingInSetProtocol packethandshakinginsetprotocol) {
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+ NetworkManager.a( this.b ).attr( NetworkManager.protocolVersion ).set( packethandshakinginsetprotocol.d() ); // Spigot
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switch (ProtocolOrdinalWrapper.a[packethandshakinginsetprotocol.c().ordinal()]) {
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case 1:
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this.b.a(EnumProtocol.LOGIN);
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@@ -68,7 +69,7 @@ public class HandshakeListener implements PacketHandshakingInListener {
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chatcomponenttext = new ChatComponentText( org.spigotmc.SpigotConfig.outdatedServerMessage ); // Spigot
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this.b.handle(new PacketLoginOutDisconnect(chatcomponenttext), new GenericFutureListener[0]);
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this.b.close(chatcomponenttext);
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- } else if (packethandshakinginsetprotocol.d() < 5) {
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+ } else if (packethandshakinginsetprotocol.d() < 4) {
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chatcomponenttext = new ChatComponentText( org.spigotmc.SpigotConfig.outdatedClientMessage ); // Spigot
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this.b.handle(new PacketLoginOutDisconnect(chatcomponenttext), new GenericFutureListener[0]);
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this.b.close(chatcomponenttext);
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diff --git a/src/main/java/net/minecraft/server/NetworkManager.java b/src/main/java/net/minecraft/server/NetworkManager.java
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index 6789ca8..7eaf694 100644
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--- a/src/main/java/net/minecraft/server/NetworkManager.java
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+++ b/src/main/java/net/minecraft/server/NetworkManager.java
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@@ -42,6 +42,19 @@ public class NetworkManager extends SimpleChannelInboundHandler {
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private EnumProtocol p;
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private IChatBaseComponent q;
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private boolean r;
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+ // Spigot Start
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+ public static final AttributeKey<Integer> protocolVersion = new AttributeKey<Integer>("protocol_version");
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+ public static final int CURRENT_VERSION = 5;
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+ public static int getVersion(net.minecraft.util.io.netty.util.AttributeMap attr)
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+ {
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+ Integer ver = attr.attr( protocolVersion ).get();
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+ return ( ver != null ) ? ver : CURRENT_VERSION;
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+ }
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+ public int getVersion()
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+ {
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+ return getVersion( this.m );
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+ }
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+ // Spigot End
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public NetworkManager(boolean flag) {
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this.j = flag;
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diff --git a/src/main/java/net/minecraft/server/PacketDataSerializer.java b/src/main/java/net/minecraft/server/PacketDataSerializer.java
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index f6f870f..855e85e 100644
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--- a/src/main/java/net/minecraft/server/PacketDataSerializer.java
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+++ b/src/main/java/net/minecraft/server/PacketDataSerializer.java
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@@ -19,10 +19,19 @@ import org.bukkit.craftbukkit.inventory.CraftItemStack; // CraftBukkit
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public class PacketDataSerializer extends ByteBuf {
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private final ByteBuf a;
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+ // Spigot Start
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+ public final int version;
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- public PacketDataSerializer(ByteBuf bytebuf) {
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+ public PacketDataSerializer(ByteBuf bytebuf)
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+ {
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+ this( bytebuf, NetworkManager.CURRENT_VERSION );
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+ }
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+
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+ public PacketDataSerializer(ByteBuf bytebuf, int version) {
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this.a = bytebuf;
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+ this.version = version;
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}
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+ // Spigot End
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public static int a(int i) {
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return (i & -128) == 0 ? 1 : ((i & -16384) == 0 ? 2 : ((i & -2097152) == 0 ? 3 : ((i & -268435456) == 0 ? 4 : 5)));
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diff --git a/src/main/java/net/minecraft/server/PacketEncoder.java b/src/main/java/net/minecraft/server/PacketEncoder.java
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new file mode 100644
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index 0000000..011a9aa
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--- /dev/null
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+++ b/src/main/java/net/minecraft/server/PacketEncoder.java
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@@ -0,0 +1,45 @@
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+package net.minecraft.server;
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+
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+import java.io.IOException;
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+
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+import net.minecraft.util.com.google.common.collect.BiMap;
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+import net.minecraft.util.io.netty.buffer.ByteBuf;
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+import net.minecraft.util.io.netty.channel.ChannelHandlerContext;
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+import net.minecraft.util.io.netty.handler.codec.MessageToByteEncoder;
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+import org.apache.logging.log4j.LogManager;
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+import org.apache.logging.log4j.Logger;
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+import org.apache.logging.log4j.Marker;
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+import org.apache.logging.log4j.MarkerManager;
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+
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+public class PacketEncoder extends MessageToByteEncoder {
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+
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+ private static final Logger a = LogManager.getLogger();
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+ private static final Marker b = MarkerManager.getMarker("PACKET_SENT", NetworkManager.b);
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+ private final NetworkStatistics c;
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+
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+ public PacketEncoder(NetworkStatistics networkstatistics) {
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+ this.c = networkstatistics;
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+ }
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+
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+ protected void a(ChannelHandlerContext channelhandlercontext, Packet packet, ByteBuf bytebuf) throws IOException {
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+ Integer integer = (Integer) ((BiMap) channelhandlercontext.channel().attr(NetworkManager.f).get()).inverse().get(packet.getClass());
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+
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+ if (a.isDebugEnabled()) {
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+ a.debug(b, "OUT: [{}:{}] {}[{}]", new Object[] { channelhandlercontext.channel().attr(NetworkManager.d).get(), integer, packet.getClass().getName(), packet.b()});
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+ }
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+
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+ if (integer == null) {
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+ throw new IOException("Can\'t serialize unregistered packet");
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+ } else {
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+ PacketDataSerializer packetdataserializer = new PacketDataSerializer(bytebuf, NetworkManager.getVersion(channelhandlercontext)); // Spigot
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+
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+ packetdataserializer.b(integer.intValue());
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+ packet.b(packetdataserializer);
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+ this.c.b(integer.intValue(), (long) packetdataserializer.readableBytes());
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+ }
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+ }
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+
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+ protected void encode(ChannelHandlerContext channelhandlercontext, Object object, ByteBuf bytebuf) throws IOException {
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+ this.a(channelhandlercontext, (Packet) object, bytebuf);
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/PacketPlayOutNamedEntitySpawn.java b/src/main/java/net/minecraft/server/PacketPlayOutNamedEntitySpawn.java
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index 7bae405..edab87b 100644
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--- a/src/main/java/net/minecraft/server/PacketPlayOutNamedEntitySpawn.java
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+++ b/src/main/java/net/minecraft/server/PacketPlayOutNamedEntitySpawn.java
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@@ -68,6 +68,7 @@ public class PacketPlayOutNamedEntitySpawn extends Packet {
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packetdataserializer.a(uuid == null ? "" : uuid.toString());
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packetdataserializer.a(this.b.getName().length() > 16 ? this.b.getName().substring(0, 16) : this.b.getName()); // CraftBukkit - Limit name length to 16 characters
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+ if (packetdataserializer.version >= 5 ) { // Spigot
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packetdataserializer.b(this.b.getProperties().size());
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Iterator iterator = this.b.getProperties().values().iterator();
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@@ -78,6 +79,7 @@ public class PacketPlayOutNamedEntitySpawn extends Packet {
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packetdataserializer.a(property.getValue());
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packetdataserializer.a(property.getSignature());
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}
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+ } // Spigot
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packetdataserializer.writeInt(this.c);
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packetdataserializer.writeInt(this.d);
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diff --git a/src/main/java/net/minecraft/server/PacketStatusListener.java b/src/main/java/net/minecraft/server/PacketStatusListener.java
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index 6423aec..f1571f1 100644
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--- a/src/main/java/net/minecraft/server/PacketStatusListener.java
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+++ b/src/main/java/net/minecraft/server/PacketStatusListener.java
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@@ -123,7 +123,7 @@ public class PacketStatusListener implements PacketStatusInListener {
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ping.setFavicon(event.icon.value);
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ping.setMOTD(new ChatComponentText(event.getMotd()));
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ping.setPlayerSample(playerSample);
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- ping.setServerInfo(new ServerPingServerData(minecraftServer.getServerModName() + " " + minecraftServer.getVersion(), 5)); // TODO: Update when protocol changes
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+ ping.setServerInfo(new ServerPingServerData(minecraftServer.getServerModName() + " " + minecraftServer.getVersion(), networkManager.getVersion())); // TODO: Update when protocol changes
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this.networkManager.handle(new PacketStatusOutServerInfo(ping), new GenericFutureListener[0]);
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// CraftBukkit end
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--
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1.8.3.2
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