MHG-1132: update protocol to current Hytale (0.5.5) — handshake + transfer#1
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alepaez wants to merge 17 commits into
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MHG-1132: update protocol to current Hytale (0.5.5) — handshake + transfer#1alepaez wants to merge 17 commits into
alepaez wants to merge 17 commits into
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…ces deployed engine
…ocol from server jar
…y from JWT; gated byte logging
…l-safe language) and clientType decode
…ction, Collection players)
…token; defer player registration
…forward undecodable packets raw
claramelo
approved these changes
Jun 17, 2026
SantioMC
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Jun 22, 2026
SantioMC
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Some code requires changing due to changes from upstream
pop4959
approved these changes
Jun 26, 2026
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Updates hyproxy's hand-rolled protocol layer to current Hytale 0.5.5 so a client can join through the proxy and be transferred to a backend. Verified end-to-end locally (client → proxy auth handshake → transfer to lobby → spawn).
See
RE-NOTES.mdfor the reverse-engineered packet/sequence findings (decompiled fromHytaleServer.jar).Connect(id 0) re-layout: no uuid/username, 4-slot offset table, var block @46protocolCrcgate (varies per client build; backend validates)InsecurePlayerOptions(363) /RequestInsecurePlayerOptions(364)PacketDecoderforwards undecodable frames raw instead of killing the connectionChannelConnection,Collectionplayers) + backend name fromSERVER_ID-Dhyproxy.debugBytes=trueBuilt with JDK 25 (
./gradlew build).