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refactor: extend transformBlob to take cleanup function

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鲁树人
2023-06-10 16:22:36 +01:00
parent 0f9748ec14
commit 3597e7789b
2 changed files with 20 additions and 15 deletions
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20
src/decrypt-worker/crypto/qmc/qmc_v2.ts
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@@ -9,11 +9,11 @@ export class QMC2Crypto implements CryptoBase {
checkByDecryptHeader = false;
async decrypt(buffer: ArrayBuffer): Promise<Blob> {
// FIXME: Move the cleanup to transformBlob
const mod = await fetchParakeet();
const footerParser = mod.make.QMCv2FooterParser(SEED, ENC_V2_KEY_1, ENC_V2_KEY_2);
return transformBlob(buffer, (p) => p.make.QMCv2(footerParser)).finally(() => {
footerParser.delete();
const parakeet = await fetchParakeet();
const footerParser = parakeet.make.QMCv2FooterParser(SEED, ENC_V2_KEY_1, ENC_V2_KEY_2);
return transformBlob(buffer, (p) => p.make.QMCv2(footerParser), {
parakeet,
cleanup: () => footerParser.delete(),
});
}
@@ -35,12 +35,14 @@ export class QMC2CryptoWithKey implements CryptoBase {
throw new Error('key was not provided');
}
// FIXME: Move the cleanup to transformBlob
const mod = await fetchParakeet();
const parakeet = await fetchParakeet();
const textEncoder = new TextEncoder();
const key = textEncoder.encode(options.qmc2Key);
const keyCrypto = mod.make.QMCv2KeyCrypto(SEED, ENC_V2_KEY_1, ENC_V2_KEY_2);
return transformBlob(buffer, (p) => p.make.QMCv2EKey(key, keyCrypto));
const keyCrypto = parakeet.make.QMCv2KeyCrypto(SEED, ENC_V2_KEY_1, ENC_V2_KEY_2);
return transformBlob(buffer, (p) => p.make.QMCv2EKey(key, keyCrypto), {
parakeet,
cleanup: () => keyCrypto.delete(),
});
}
public static make() {