geforkt von Mirrors/Paper
fb2c24b36d
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 05ae036c PR-746: Add option to use cached map color palette 57849c1b PR-759: Add preview chat option in ServerListPingEvent 0169e65d PR-758: Add missing server properties methods from 1.19 CraftBukkit Changes: 622dbe6c2 SPIGOT-7068: SKULK and SKULK_VEIN BlockSpreadEvents Still do not reference the correct source (SKULK_CATALYST) 6c61b73f3 PR-1052: Add option to use cached map color palette c882f38ea SPIGOT-7066: Fix custom END worlds not generating DragonBattle 6866aab59 SPIGOT-2420: Can't set exp drops for EnderDragon death 9dcd46530 PR-1067: Add preview chat option in ServerListPingEvent 36c2681af PR-1066: Add missing server properties methods from 1.19 031eaadd0 Increase outdated build delay 8fda4b12f SPIGOT-7060: SCULK and SCULK_VEIN BlockSpreadEvents do not reference the correct source
204 Zeilen
11 KiB
Diff
204 Zeilen
11 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Andrew Steinborn <git@steinborn.me>
|
|
Date: Mon, 8 Oct 2018 14:36:14 -0400
|
|
Subject: [PATCH] Add Velocity IP Forwarding Support
|
|
|
|
While Velocity supports BungeeCord-style IP forwarding, it is not secure. Users
|
|
have a lot of problems setting up firewalls or setting up plugins like IPWhitelist.
|
|
Further, the BungeeCord IP forwarding protocol still retains essentially its original
|
|
form, when there is brand new support for custom login plugin messages in 1.13.
|
|
|
|
Velocity's modern IP forwarding uses an HMAC-SHA256 code to ensure authenticity
|
|
of messages, is packed into a binary format that is smaller than BungeeCord's
|
|
forwarding, and is integrated into the Minecraft login process by using the 1.13
|
|
login plugin message packet.
|
|
|
|
diff --git a/src/main/java/com/destroystokyo/paper/proxy/VelocityProxy.java b/src/main/java/com/destroystokyo/paper/proxy/VelocityProxy.java
|
|
new file mode 100644
|
|
index 0000000000000000000000000000000000000000..980e2b4dc308adf9a6cb2596b28eaeee65d629a8
|
|
--- /dev/null
|
|
+++ b/src/main/java/com/destroystokyo/paper/proxy/VelocityProxy.java
|
|
@@ -0,0 +1,68 @@
|
|
+package com.destroystokyo.paper.proxy;
|
|
+
|
|
+import io.papermc.paper.configuration.GlobalConfiguration;
|
|
+import com.google.common.net.InetAddresses;
|
|
+import com.mojang.authlib.GameProfile;
|
|
+import com.mojang.authlib.properties.Property;
|
|
+import java.net.InetAddress;
|
|
+import java.security.InvalidKeyException;
|
|
+import java.security.MessageDigest;
|
|
+import java.security.NoSuchAlgorithmException;
|
|
+
|
|
+import javax.crypto.Mac;
|
|
+import javax.crypto.spec.SecretKeySpec;
|
|
+import net.minecraft.network.FriendlyByteBuf;
|
|
+import net.minecraft.resources.ResourceLocation;
|
|
+import net.minecraft.world.entity.player.ProfilePublicKey;
|
|
+
|
|
+public class VelocityProxy {
|
|
+ private static final int SUPPORTED_FORWARDING_VERSION = 1;
|
|
+ public static final int MODERN_FORWARDING_WITH_KEY = 2;
|
|
+ public static final byte MAX_SUPPORTED_FORWARDING_VERSION = 2;
|
|
+ public static final ResourceLocation PLAYER_INFO_CHANNEL = new ResourceLocation("velocity", "player_info");
|
|
+
|
|
+ public static boolean checkIntegrity(final FriendlyByteBuf buf) {
|
|
+ final byte[] signature = new byte[32];
|
|
+ buf.readBytes(signature);
|
|
+
|
|
+ final byte[] data = new byte[buf.readableBytes()];
|
|
+ buf.getBytes(buf.readerIndex(), data);
|
|
+
|
|
+ try {
|
|
+ final Mac mac = Mac.getInstance("HmacSHA256");
|
|
+ mac.init(new SecretKeySpec(GlobalConfiguration.get().proxies.velocity.secret.getBytes(java.nio.charset.StandardCharsets.UTF_8), "HmacSHA256"));
|
|
+ final byte[] mySignature = mac.doFinal(data);
|
|
+ if (!MessageDigest.isEqual(signature, mySignature)) {
|
|
+ return false;
|
|
+ }
|
|
+ } catch (final InvalidKeyException | NoSuchAlgorithmException e) {
|
|
+ throw new AssertionError(e);
|
|
+ }
|
|
+
|
|
+ return true;
|
|
+ }
|
|
+
|
|
+ public static InetAddress readAddress(final FriendlyByteBuf buf) {
|
|
+ return InetAddresses.forString(buf.readUtf(Short.MAX_VALUE));
|
|
+ }
|
|
+
|
|
+ public static GameProfile createProfile(final FriendlyByteBuf buf) {
|
|
+ final GameProfile profile = new GameProfile(buf.readUUID(), buf.readUtf(16));
|
|
+ readProperties(buf, profile);
|
|
+ return profile;
|
|
+ }
|
|
+
|
|
+ private static void readProperties(final FriendlyByteBuf buf, final GameProfile profile) {
|
|
+ final int properties = buf.readVarInt();
|
|
+ for (int i1 = 0; i1 < properties; i1++) {
|
|
+ final String name = buf.readUtf(Short.MAX_VALUE);
|
|
+ final String value = buf.readUtf(Short.MAX_VALUE);
|
|
+ final String signature = buf.readBoolean() ? buf.readUtf(Short.MAX_VALUE) : null;
|
|
+ profile.getProperties().put(name, new Property(name, value, signature));
|
|
+ }
|
|
+ }
|
|
+
|
|
+ public static ProfilePublicKey.Data readForwardedKey(FriendlyByteBuf buf) {
|
|
+ return new ProfilePublicKey.Data(buf);
|
|
+ }
|
|
+}
|
|
diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
|
|
index 1b075033f0640433341957f6e26ebe25f18928ee..8b5eddce4845619603ccfeec158d97cb86568e0d 100644
|
|
--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
|
|
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
|
|
@@ -69,6 +69,7 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener
|
|
@Nullable
|
|
private ProfilePublicKey playerProfilePublicKey;
|
|
public String hostname = ""; // CraftBukkit - add field
|
|
+ private int velocityLoginMessageId = -1; // Paper - Velocity support
|
|
|
|
public ServerLoginPacketListenerImpl(MinecraftServer server, Connection connection) {
|
|
this.state = ServerLoginPacketListenerImpl.State.HELLO;
|
|
@@ -279,6 +280,16 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener
|
|
this.state = ServerLoginPacketListenerImpl.State.KEY;
|
|
this.connection.send(new ClientboundHelloPacket("", this.server.getKeyPair().getPublic().getEncoded(), this.nonce));
|
|
} else {
|
|
+ // Paper start - Velocity support
|
|
+ if (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.velocity.enabled) {
|
|
+ this.velocityLoginMessageId = java.util.concurrent.ThreadLocalRandom.current().nextInt();
|
|
+ net.minecraft.network.FriendlyByteBuf buf = new net.minecraft.network.FriendlyByteBuf(io.netty.buffer.Unpooled.buffer());
|
|
+ buf.writeByte(com.destroystokyo.paper.proxy.VelocityProxy.MAX_SUPPORTED_FORWARDING_VERSION);
|
|
+ net.minecraft.network.protocol.login.ClientboundCustomQueryPacket packet1 = new net.minecraft.network.protocol.login.ClientboundCustomQueryPacket(this.velocityLoginMessageId, com.destroystokyo.paper.proxy.VelocityProxy.PLAYER_INFO_CHANNEL, buf);
|
|
+ this.connection.send(packet1);
|
|
+ return;
|
|
+ }
|
|
+ // Paper end
|
|
// Spigot start
|
|
// Paper start - Cache authenticator threads
|
|
authenticatorPool.execute(new Runnable() {
|
|
@@ -388,6 +399,12 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener
|
|
public class LoginHandler {
|
|
|
|
public void fireEvents() throws Exception {
|
|
+ // Paper start - Velocity support
|
|
+ if (ServerLoginPacketListenerImpl.this.velocityLoginMessageId == -1 && io.papermc.paper.configuration.GlobalConfiguration.get().proxies.velocity.enabled) {
|
|
+ disconnect("This server requires you to connect with Velocity.");
|
|
+ return;
|
|
+ }
|
|
+ // Paper end
|
|
String playerName = ServerLoginPacketListenerImpl.this.gameProfile.getName();
|
|
java.net.InetAddress address = ((java.net.InetSocketAddress) ServerLoginPacketListenerImpl.this.connection.getRemoteAddress()).getAddress();
|
|
java.util.UUID uniqueId = ServerLoginPacketListenerImpl.this.gameProfile.getId();
|
|
@@ -435,6 +452,58 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener
|
|
// Spigot end
|
|
|
|
public void handleCustomQueryPacket(ServerboundCustomQueryPacket packet) {
|
|
+ // Paper start - Velocity support
|
|
+ if (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.velocity.enabled && packet.getTransactionId() == this.velocityLoginMessageId) {
|
|
+ net.minecraft.network.FriendlyByteBuf buf = packet.getData();
|
|
+ if (buf == null) {
|
|
+ this.disconnect("This server requires you to connect with Velocity.");
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ if (!com.destroystokyo.paper.proxy.VelocityProxy.checkIntegrity(buf)) {
|
|
+ this.disconnect("Unable to verify player details");
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ int version = buf.readVarInt();
|
|
+ if (version > com.destroystokyo.paper.proxy.VelocityProxy.MAX_SUPPORTED_FORWARDING_VERSION) {
|
|
+ throw new IllegalStateException("Unsupported forwarding version " + version + ", wanted upto " + com.destroystokyo.paper.proxy.VelocityProxy.MAX_SUPPORTED_FORWARDING_VERSION);
|
|
+ }
|
|
+
|
|
+ java.net.SocketAddress listening = this.connection.getRemoteAddress();
|
|
+ int port = 0;
|
|
+ if (listening instanceof java.net.InetSocketAddress) {
|
|
+ port = ((java.net.InetSocketAddress) listening).getPort();
|
|
+ }
|
|
+ this.connection.address = new java.net.InetSocketAddress(com.destroystokyo.paper.proxy.VelocityProxy.readAddress(buf), port);
|
|
+
|
|
+ this.gameProfile = com.destroystokyo.paper.proxy.VelocityProxy.createProfile(buf);
|
|
+
|
|
+ // We should already have this, but, we'll read it out anyway
|
|
+ //noinspection NonStrictComparisonCanBeEquality
|
|
+ if (version >= com.destroystokyo.paper.proxy.VelocityProxy.MODERN_FORWARDING_WITH_KEY) {
|
|
+ final ProfilePublicKey.Data forwardedKey = com.destroystokyo.paper.proxy.VelocityProxy.readForwardedKey(buf);
|
|
+ if (this.playerProfilePublicKey == null) {
|
|
+ try {
|
|
+ this.playerProfilePublicKey = ProfilePublicKey.createValidated(this.server.getServiceSignatureValidator(), forwardedKey);
|
|
+ } catch (CryptException e) {
|
|
+ this.disconnect("Unable to validate forwarded player key");
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+
|
|
+ // Proceed with login
|
|
+ authenticatorPool.execute(() -> {
|
|
+ try {
|
|
+ new LoginHandler().fireEvents();
|
|
+ } catch (Exception ex) {
|
|
+ disconnect("Failed to verify username!");
|
|
+ server.server.getLogger().log(java.util.logging.Level.WARNING, "Exception verifying " + gameProfile.getName(), ex);
|
|
+ }
|
|
+ });
|
|
+ return;
|
|
+ }
|
|
+ // Paper end
|
|
this.disconnect(Component.translatable("multiplayer.disconnect.unexpected_query_response"));
|
|
}
|
|
|
|
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
|
|
index 3ffb9cb08dc3b71662364bd5553b895ddc0f9ab7..0b13ff4c656615b19a4cdffa7390c4dd01c5a82d 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
|
|
@@ -762,7 +762,7 @@ public final class CraftServer implements Server {
|
|
@Override
|
|
public long getConnectionThrottle() {
|
|
// Spigot Start - Automatically set connection throttle for bungee configurations
|
|
- if (org.spigotmc.SpigotConfig.bungee) {
|
|
+ if (org.spigotmc.SpigotConfig.bungee || io.papermc.paper.configuration.GlobalConfiguration.get().proxies.velocity.enabled) { // Paper - Velocity support
|
|
return -1;
|
|
} else {
|
|
return this.configuration.getInt("settings.connection-throttle");
|