35 lines
1006 B
Plaintext
35 lines
1006 B
Plaintext
import { isoCBOR } from './iso/index.js';
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/**
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* Convert authenticator extension data buffer to a proper object
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*
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* @param extensionData Authenticator Extension Data buffer
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*/
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export function decodeAuthenticatorExtensions(extensionData) {
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let toCBOR;
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try {
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toCBOR = isoCBOR.decodeFirst(extensionData);
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}
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catch (err) {
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const _err = err;
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throw new Error(`Error decoding authenticator extensions: ${_err.message}`);
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}
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return convertMapToObjectDeep(toCBOR);
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}
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/**
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* CBOR-encoded extensions can be deeply-nested Maps, which are too deep for a simple
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* `Object.entries()`. This method will recursively make sure that all Maps are converted into
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* basic objects.
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*/
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function convertMapToObjectDeep(input) {
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const mapped = {};
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for (const [key, value] of input) {
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if (value instanceof Map) {
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mapped[key] = convertMapToObjectDeep(value);
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}
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else {
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mapped[key] = value;
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}
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}
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return mapped;
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}
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