NHA2: Decode CS2 store data #1441
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Adds support for LZMA-decoded Binary KV to NHA2 Adds support for 0x0B (AlternateEnd) to KeyValue
xPaw
reviewed
Sep 30, 2024
SteamKit2/SteamKit2/Util/LzmaUtil.cs
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| /// <summary> | ||
| /// Internal helper to decode data blobs with the 'LZMA' magic header. | ||
| /// </summary> | ||
| public static class LzmaUtil |
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I would avoid exposing this publicly.
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I'd need InternalsVisibleTo for NHA2 then, or to move the whole thing into NHA2.
If GC are using it at the protocol level somehow then it would be needed by SK2 clients.
If they're not and its game-specific then I'd be on the fence about including it.
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Then I need a second copy of the LZMA SDK to get at the Decoder. 😞
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That's annoying. InternalsVisibleTo then? :(
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yeah, seems like the least evil option for now
xPaw
approved these changes
Oct 1, 2024
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This needs tests but PR is up for people to build themselves or use GHA artefacts.
Addresses the issue described in discussion #1440.
The payload is a binary blob with the four-byte magic
LZMA. This doe not seem to be a standard but is possibly a Valve creation, as seen elsewhere in ValveResourceFormat.It also uses a different type of KeyValues binary serialisation, using
AlternateEndfrom VBKV as seen here: ValveResourceFormat/ValveKeyValue#9These changes probably need some new tests for the modified KV logic, and ideally also for the new LzmaUtil class.