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Move patches to unapplied

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This commit is contained in:
Nassim Jahnke
2024-12-12 12:22:12 +01:00
parent ff75689b08
commit 45ddf764d9
821 changed files with 0 additions and 0 deletions
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211
paper-server/patches/sources/net/minecraft/server/network/LegacyQueryHandler.java.patch
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@ -1,211 +0,0 @@
--- a/net/minecraft/server/network/LegacyQueryHandler.java
+++ b/net/minecraft/server/network/LegacyQueryHandler.java
@@ -15,6 +15,7 @@
private static final Logger LOGGER = LogUtils.getLogger();
private final ServerInfo server;
+ private ByteBuf buf; // Paper
public LegacyQueryHandler(ServerInfo server) {
this.server = server;
@@ -23,6 +24,16 @@
public void channelRead(ChannelHandlerContext channelhandlercontext, Object object) {
ByteBuf bytebuf = (ByteBuf) object;
+ // Paper start - Make legacy ping handler more reliable
+ if (this.buf != null) {
+ try {
+ readLegacy1_6(channelhandlercontext, bytebuf);
+ } finally {
+ bytebuf.release();
+ }
+ return;
+ }
+ // Paper end
bytebuf.markReaderIndex();
boolean flag = true;
@@ -34,11 +45,23 @@
SocketAddress socketaddress = channelhandlercontext.channel().remoteAddress();
int i = bytebuf.readableBytes();
- String s;
+ String s = null; // Paper
+ // org.bukkit.event.server.ServerListPingEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callServerListPingEvent(socketaddress, this.server.getMotd(), this.server.getPlayerCount(), this.server.getMaxPlayers()); // CraftBukkit // Paper
+ com.destroystokyo.paper.event.server.PaperServerListPingEvent event; // Paper
if (i == 0) {
- LegacyQueryHandler.LOGGER.debug("Ping: (<1.3.x) from {}", socketaddress);
- s = LegacyQueryHandler.createVersion0Response(this.server);
+ LegacyQueryHandler.LOGGER.debug("Ping: (<1.3.x) from {}", net.minecraft.server.MinecraftServer.getServer().logIPs() ? socketaddress: "<ip address withheld>"); // Paper - Respect logIPs option
+
+ // Paper start - Call PaperServerListPingEvent and use results
+ event = com.destroystokyo.paper.network.PaperLegacyStatusClient.processRequest(net.minecraft.server.MinecraftServer.getServer(), (java.net.InetSocketAddress) socketaddress, 39, null);
+ if (event == null) {
+ channelhandlercontext.close();
+ bytebuf.release();
+ flag = false;
+ return;
+ }
+ s = String.format(Locale.ROOT, "%s\u00a7%d\u00a7%d", com.destroystokyo.paper.network.PaperLegacyStatusClient.getUnformattedMotd(event), event.getNumPlayers(), event.getMaxPlayers());
+ // Paper end
LegacyQueryHandler.sendFlushAndClose(channelhandlercontext, LegacyQueryHandler.createLegacyDisconnectPacket(channelhandlercontext.alloc(), s));
} else {
if (bytebuf.readUnsignedByte() != 1) {
@@ -46,16 +69,35 @@
}
if (bytebuf.isReadable()) {
- if (!LegacyQueryHandler.readCustomPayloadPacket(bytebuf)) {
- return;
+ // Paper start - Replace with improved version below
+ if (bytebuf.readUnsignedByte() != 250) {
+ s = this.readLegacy1_6(channelhandlercontext, bytebuf);
+ if (s == null) {
+ return;
+ }
}
-
- LegacyQueryHandler.LOGGER.debug("Ping: (1.6) from {}", socketaddress);
+ // if (!LegacyQueryHandler.readCustomPayloadPacket(bytebuf)) {
+ // return;
+ // }
+ //
+ // LegacyQueryHandler.LOGGER.debug("Ping: (1.6) from {}", socketaddress);
+ // Paper end
} else {
- LegacyQueryHandler.LOGGER.debug("Ping: (1.4-1.5.x) from {}", socketaddress);
+ LegacyQueryHandler.LOGGER.debug("Ping: (1.4-1.5.x) from {}", net.minecraft.server.MinecraftServer.getServer().logIPs() ? socketaddress: "<ip address withheld>"); // Paper - Respect logIPs option
}
- s = LegacyQueryHandler.createVersion1Response(this.server);
+ if (s == null) {
+ // Paper start - Call PaperServerListPingEvent and use results
+ event = com.destroystokyo.paper.network.PaperLegacyStatusClient.processRequest(net.minecraft.server.MinecraftServer.getServer(), (java.net.InetSocketAddress) socketaddress, 127, null); // Paper
+ if (event == null) {
+ channelhandlercontext.close();
+ bytebuf.release();
+ flag = false;
+ return;
+ }
+ s = String.format(Locale.ROOT, "\u00a71\u0000%d\u0000%s\u0000%s\u0000%d\u0000%d", new Object[] { event.getProtocolVersion(), this.server.getServerVersion(), event.getMotd(), event.getNumPlayers(), event.getMaxPlayers()}); // CraftBukkit
+ // Paper end
+ }
LegacyQueryHandler.sendFlushAndClose(channelhandlercontext, LegacyQueryHandler.createLegacyDisconnectPacket(channelhandlercontext.alloc(), s));
}
@@ -106,14 +148,110 @@
}
}
- private static String createVersion0Response(ServerInfo server) {
- return String.format(Locale.ROOT, "%s\u00a7%d\u00a7%d", server.getMotd(), server.getPlayerCount(), server.getMaxPlayers());
+ // Paper start
+ private static String readLegacyString(ByteBuf buf) {
+ int size = buf.readShort() * Character.BYTES;
+ if (!buf.isReadable(size)) {
+ return null;
+ }
+
+ String result = buf.toString(buf.readerIndex(), size, java.nio.charset.StandardCharsets.UTF_16BE);
+ buf.skipBytes(size); // toString doesn't increase readerIndex automatically
+ return result;
}
- private static String createVersion1Response(ServerInfo server) {
- return String.format(Locale.ROOT, "\u00a71\u0000%d\u0000%s\u0000%s\u0000%d\u0000%d", 127, server.getServerVersion(), server.getMotd(), server.getPlayerCount(), server.getMaxPlayers());
+ private String readLegacy1_6(ChannelHandlerContext ctx, ByteBuf part) {
+ ByteBuf buf = this.buf;
+
+ if (buf == null) {
+ this.buf = buf = ctx.alloc().buffer();
+ buf.markReaderIndex();
+ } else {
+ buf.resetReaderIndex();
+ }
+
+ buf.writeBytes(part);
+
+ if (!buf.isReadable(Short.BYTES + Short.BYTES + Byte.BYTES + Short.BYTES + Integer.BYTES)) {
+ return null;
+ }
+
+ String s = readLegacyString(buf);
+ if (s == null) {
+ return null;
+ }
+
+ if (!s.equals("MC|PingHost")) {
+ removeHandler(ctx);
+ return null;
+ }
+
+ if (!buf.isReadable(Short.BYTES) || !buf.isReadable(buf.readShort())) {
+ return null;
+ }
+
+ net.minecraft.server.MinecraftServer server = net.minecraft.server.MinecraftServer.getServer();
+ int protocolVersion = buf.readByte();
+ String host = readLegacyString(buf);
+ if (host == null) {
+ removeHandler(ctx);
+ return null;
+ }
+ int port = buf.readInt();
+
+ if (buf.isReadable()) {
+ removeHandler(ctx);
+ return null;
+ }
+
+ buf.release();
+ this.buf = null;
+
+ LOGGER.debug("Ping: (1.6) from {}", net.minecraft.server.MinecraftServer.getServer().logIPs() ? ctx.channel().remoteAddress(): "<ip address withheld>"); // Paper - Respect logIPs option
+
+ java.net.InetSocketAddress virtualHost = com.destroystokyo.paper.network.PaperNetworkClient.prepareVirtualHost(host, port);
+ com.destroystokyo.paper.event.server.PaperServerListPingEvent event = com.destroystokyo.paper.network.PaperLegacyStatusClient.processRequest(
+ server, (java.net.InetSocketAddress) ctx.channel().remoteAddress(), protocolVersion, virtualHost);
+ if (event == null) {
+ ctx.close();
+ return null;
+ }
+
+ String response = String.format("\u00a71\u0000%d\u0000%s\u0000%s\u0000%d\u0000%d", event.getProtocolVersion(), event.getVersion(),
+ com.destroystokyo.paper.network.PaperLegacyStatusClient.getMotd(event), event.getNumPlayers(), event.getMaxPlayers());
+ return response;
}
+ private void removeHandler(ChannelHandlerContext ctx) {
+ ByteBuf buf = this.buf;
+ this.buf = null;
+
+ buf.resetReaderIndex();
+ ctx.pipeline().remove(this);
+ ctx.fireChannelRead(buf);
+ }
+
+ @Override
+ public void handlerRemoved(ChannelHandlerContext ctx) {
+ if (this.buf != null) {
+ this.buf.release();
+ this.buf = null;
+ }
+ }
+ // Paper end
+
+ // CraftBukkit start
+ private static String createVersion0Response(ServerInfo serverinfo, org.bukkit.event.server.ServerListPingEvent event) {
+ return String.format(Locale.ROOT, "%s\u00a7%d\u00a7%d", event.getMotd(), event.getNumPlayers(), event.getMaxPlayers());
+ // CraftBukkit end
+ }
+
+ // CraftBukkit start
+ private static String createVersion1Response(ServerInfo serverinfo, org.bukkit.event.server.ServerListPingEvent event) {
+ return String.format(Locale.ROOT, "\u00a71\u0000%d\u0000%s\u0000%s\u0000%d\u0000%d", 127, serverinfo.getServerVersion(), event.getMotd(), event.getNumPlayers(), event.getMaxPlayers());
+ // CraftBukkit end
+ }
+
private static void sendFlushAndClose(ChannelHandlerContext context, ByteBuf buf) {
context.pipeline().firstContext().writeAndFlush(buf).addListener(ChannelFutureListener.CLOSE);
}