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Add sync variant

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This commit is contained in:
Manav Rathi 2024-08-07 10:56:25 +05:30
parent f4adea5a60
commit 62436db1c3
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1 changed files with 33 additions and 1 deletions
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34
web/packages/shared/file-metadata.ts
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@ -1,6 +1,12 @@
import { decryptPublicMagicMetadata } from "@/media/file-metadata";
import {
decryptPublicMagicMetadata,
type PublicMagicMetadata,
} from "@/media/file-metadata";
import { EnteFile } from "@/new/photos/types/file";
import ComlinkCryptoWorker from "@ente/shared/crypto";
import { decryptMetadata } from "packages/base/crypto/ente";
import { isDevBuild } from "packages/base/env";
import { fileLogID } from "packages/new/photos/utils/file";
/**
* On-demand decrypt the public magic metadata for an {@link EnteFile} for code
@ -14,3 +20,29 @@ export const getPublicMagicMetadataMT = async (enteFile: EnteFile) =>
enteFile,
(await ComlinkCryptoWorker.getInstance()).decryptMetadata,
);
/**
* On-demand decrypt the public magic metadata for an {@link EnteFile} for code
* running on the main thread, but do it synchronously.
*
* It both modifies the given file object, and also returns the decrypted
* metadata.
*
* We are not expected to be in a scenario where the file gets to the UI without
* having its public magic metadata decrypted, so this function is a sanity
* check and should be a no-op in usually. On debug builds it'll throw if it
* finds its assumptions broken.
*/
export const getPublicMagicMetadataMTSync = (enteFile: EnteFile) => {
if (!enteFile.pubMagicMetadata) return undefined;
if (typeof enteFile.pubMagicMetadata.data == "string") {
if (isDevBuild)
throw new Error(
`Public magic metadata for ${fileLogID(enteFile)} had not been decrypted even when the file reached the UI layer`,
);
decryptPublicMagicMetadata(enteFile, decryptMetadata);
}
// This cast is unavoidable in the current setup. We need to refactor the
// types so that this cast in not needed.
return enteFile.pubMagicMetadata.data as PublicMagicMetadata;
};