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Alter velocity modern forwarding version (#3078)

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Gero 2022-08-03 16:17:52 +02:00 committed by GitHub
parent 9c3395b76b
commit 04f9971dee
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1 changed files with 25 additions and 0 deletions
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common/src/main/java/com/viaversion/viaversion/protocols/protocol1_19_1to1_19/Protocol1_19_1To1_19.java
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@ -249,6 +249,31 @@ public final class Protocol1_19_1To1_19 extends AbstractProtocol<ClientboundPack
});
}
});
registerClientbound(State.LOGIN, ClientboundLoginPackets.CUSTOM_QUERY.getId(), ClientboundLoginPackets.CUSTOM_QUERY.getId(), new PacketRemapper() {
@Override
public void registerMap() {
map(Type.VAR_INT);
map(Type.STRING);
handler(wrapper -> {
String identifier = wrapper.get(Type.STRING, 0);
if (identifier.equals("velocity:player_info")) {
byte[] data = wrapper.passthrough(Type.REMAINING_BYTES);
// Velocity modern forwarding version above 1 includes the players public key.
// This is an issue because the server will expect a 1.19 key and receive a 1.19.1 key.
// Velocity modern forwarding versions: https://github.com/PaperMC/Velocity/blob/1a3fba4250553702d9dcd05731d04347bfc24c9f/proxy/src/main/java/com/velocitypowered/proxy/connection/VelocityConstants.java#L27-L29
// And the version can be specified with a single byte: https://github.com/PaperMC/Velocity/blob/1a3fba4250553702d9dcd05731d04347bfc24c9f/proxy/src/main/java/com/velocitypowered/proxy/connection/backend/LoginSessionHandler.java#L88
if (data.length == 1 && data[0] > 1) {
data[0] = 1;
} else if (data.length == 0) { // Or the version is omitted (default version would be used)
data = new byte[] { 1 };
wrapper.set(Type.REMAINING_BYTES, 0, data);
} else {
Via.getPlatform().getLogger().warning("Received unexpected data in velocity:player_info (length=" + data.length + ")");
}
}
});
}
});
}
@Override