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[api] quest asset split on unity target (#108)

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* [api] quest asset split

* [api] unity swap + hash removal
This commit is contained in:
devin
2026-09-20 23:40:08 -04:00
committed by GitHub
parent 2909550cd6
commit 95bca2458a
10 changed files with 327 additions and 35 deletions
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apps/api/src/custom-avatar-items-load.ts
+33 -14
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@@ -78,8 +78,21 @@ export function prefixSaveThumbnail(name: unknown): unknown {
}
/**
* One record as the SQL string literal its row holds: the JSON, minus `PurchaseInfo`, with two
* fields rewritten.
* A save's assetbundle hash as it is stored: BLANK. The export's `UnityAssetHash` /
* `UnityAsset2Hash` are the hashes of the PC builds, and one stored save is served to every
* build target — a Quest asking with `unityAssetTarget=2` is pointed at the `quest/` build of
* the same bundle, whose bytes (and so whose hash) differ. The client checks a download against
* a hash it is given and refuses the mismatch, so the Quest rendered nothing until these were
* emptied by hand; given `""` it skips the check. A hash that is already null — the
* `UnityAsset2Hash` of a save with no second bundle — stays null, so the pair keeps agreeing.
*/
export function blankAssetHash(hash: unknown): unknown {
return typeof hash === 'string' ? '' : hash
}
/**
* One record as the SQL string literal its row holds: the JSON, minus `PurchaseInfo`, with
* three things rewritten.
*
* `CreatorAccountId` is overridden to {@link COACH_ACCOUNT_ID} whatever the export said. An
* imported item is first-party content by definition, and the creator id is what makes it so
@@ -90,22 +103,28 @@ export function prefixSaveThumbnail(name: unknown): unknown {
* account happened to share the number.
*
* Each save's `ThumbnailFileName` is prefixed with {@link SAVE_THUMBNAIL_PREFIX}, which is where
* this server serves those images from. The rest of the save — the assetbundle names above
* all — is untouched.
* this server serves those images from, and its `UnityAssetHash`/`UnityAsset2Hash` are blanked
* (see {@link blankAssetHash}). The rest of the save — the assetbundle names above all — is
* untouched.
*/
export function customAvatarItemRowLiteral(record: CustomAvatarItemExportRecord): string {
const { PurchaseInfo: _purchaseInfo, ...stored } = record
const saves = Array.isArray(stored.CurrentSaves)
? stored.CurrentSaves.map((save: unknown) =>
save && typeof save === 'object' && !Array.isArray(save)
? {
...(save as Record<string, unknown>),
ThumbnailFileName: prefixSaveThumbnail(
(save as { ThumbnailFileName?: unknown }).ThumbnailFileName
),
}
: save
)
? stored.CurrentSaves.map((save: unknown) => {
if (!save || typeof save !== 'object' || Array.isArray(save)) return save
const fields = save as Record<string, unknown>
return {
...fields,
ThumbnailFileName: prefixSaveThumbnail(fields.ThumbnailFileName),
// Only where the export carries the key, so a save is never GIVEN a field.
...('UnityAssetHash' in fields && {
UnityAssetHash: blankAssetHash(fields.UnityAssetHash),
}),
...('UnityAsset2Hash' in fields && {
UnityAsset2Hash: blankAssetHash(fields.UnityAsset2Hash),
}),
}
})
: stored.CurrentSaves
const row = { ...stored, CreatorAccountId: COACH_ACCOUNT_ID, CurrentSaves: saves }
return `'${JSON.stringify(row).replaceAll("'", "''")}'`