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Mirror von https://github.com/PaperMC/Velocity.git synchronisiert 2024-12-24 15:20:35 +01:00
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Finish Modern forwarding v2

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Dieser Commit ist enthalten in:
FivePB (Xer) 2022-06-09 16:27:25 +02:00 committet von GitHub
Ursprung 3501969960
Commit 64bfa285fe
Es konnte kein GPG-Schlüssel zu dieser Signatur gefunden werden
GPG-Schlüssel-ID: 4AEE18F83AFDEB23
1 geänderte Dateien mit 21 neuen und 8 gelöschten Zeilen
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29
proxy/src/main/java/com/velocitypowered/proxy/connection/backend/LoginSessionHandler.java
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@ -17,6 +17,7 @@
package com.velocitypowered.proxy.connection.backend;
import com.google.common.base.Preconditions;
import com.velocitypowered.api.event.player.ServerLoginPluginMessageEvent;
import com.velocitypowered.api.network.ProtocolVersion;
import com.velocitypowered.api.proxy.crypto.IdentifiedKey;
@ -79,9 +80,19 @@ public class LoginSessionHandler implements MinecraftSessionHandler {
VelocityConfiguration configuration = server.getConfiguration();
if (configuration.getPlayerInfoForwardingMode() == PlayerInfoForwarding.MODERN
&& packet.getChannel().equals(VelocityConstants.VELOCITY_IP_FORWARDING_CHANNEL)) {
int proposedForwardingVersion = VelocityConstants.MODERN_FORWARDING_DEFAULT;
// Check version
if (packet.content().readableBytes() == 1) {
int requested = packet.content().readByte();
Preconditions.checkArgument(requested >= VelocityConstants.MODERN_FORWARDING_DEFAULT,
"Invalid modern forwarding version");
proposedForwardingVersion = Math.min(requested, VelocityConstants.MODERN_FORWARDING_WITH_KEY);
}
ByteBuf forwardingData = createForwardingData(configuration.getForwardingSecret(),
serverConn.getPlayerRemoteAddressAsString(),
serverConn.getPlayer().getGameProfile(), mc.getProtocolVersion(), serverConn.getPlayer().getIdentifiedKey());
serverConn.getPlayerRemoteAddressAsString(), serverConn.getPlayer().getGameProfile(),
serverConn.getPlayer().getIdentifiedKey(), proposedForwardingVersion);
LoginPluginResponse response = new LoginPluginResponse(packet.getId(), true, forwardingData);
mc.write(response);
informationForwarded = true;
@ -166,20 +177,22 @@ public class LoginSessionHandler implements MinecraftSessionHandler {
}
private static ByteBuf createForwardingData(byte[] hmacSecret, String address,
GameProfile profile, ProtocolVersion version,
@Nullable IdentifiedKey playerKey) {
GameProfile profile, @Nullable IdentifiedKey playerKey,
int requestedVersion) {
ByteBuf forwarded = Unpooled.buffer(2048);
try {
int forwardingVersion = version.compareTo(ProtocolVersion.MINECRAFT_1_19) >= 0 && playerKey != null
? VelocityConstants.MODERN_FORWARDING_DEFAULT : VelocityConstants.MODERN_FORWARDING_DEFAULT;
int actualVersion = requestedVersion >= VelocityConstants.MODERN_FORWARDING_WITH_KEY
? (playerKey != null ? requestedVersion : VelocityConstants.MODERN_FORWARDING_DEFAULT) : requestedVersion;
ProtocolUtils.writeVarInt(forwarded, forwardingVersion);
ProtocolUtils.writeVarInt(forwarded, actualVersion);
ProtocolUtils.writeString(forwarded, address);
ProtocolUtils.writeUuid(forwarded, profile.getId());
ProtocolUtils.writeString(forwarded, profile.getName());
ProtocolUtils.writeProperties(forwarded, profile.getProperties());
if (forwardingVersion >= VelocityConstants.MODERN_FORWARDING_WITH_KEY) {
// This serves as additional redundancy. The key normally is stored in the
// login start to the server, but some setups require this.
if (actualVersion >= VelocityConstants.MODERN_FORWARDING_WITH_KEY) {
ProtocolUtils.writePlayerKey(forwarded, playerKey);
}