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39 lines
1.5 KiB
Plaintext
39 lines
1.5 KiB
Plaintext
import { AsnSerializer, AsnParser } from "@peculiar/asn1-codec";
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import * as asn1js from "asn1js";
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export function asnNodeToLegacyType(node) {
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if (node.ctx && node.start !== undefined && node.end !== undefined) {
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const contextData = node.ctx.data.slice(node.start, node.end);
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const parsed = asn1js.fromBER(contextData.buffer);
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if (parsed.offset === -1) {
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throw new Error("Error parsing ASN.1 with asn1js: " + parsed.result.error);
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}
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return parsed.result;
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}
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const derBytes = AsnSerializer.nodeToBytes(node);
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const parsed = asn1js.fromBER(derBytes.buffer);
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if (parsed.offset === -1) {
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throw new Error("Error parsing ASN.1 with asn1js: " + parsed.result.error);
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}
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return parsed.result;
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}
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function legacyTypeToAsnNode(value) {
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const derBytes = value.toBER();
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const parseResult = AsnParser.parse(new Uint8Array(derBytes), { captureRaw: true });
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if (parseResult.errors?.length) {
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throw new Error(`Failed to parse serialized ASN.1: ${parseResult.errors[0].message}`);
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}
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return parseResult.root;
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}
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export function createLegacyConverterAdapter(legacyConverter) {
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return {
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fromASN: (value) => {
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const legacyValue = asnNodeToLegacyType(value);
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return legacyConverter.fromASN(legacyValue);
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},
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toASN: (value) => {
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const legacyResult = legacyConverter.toASN(value);
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return legacyTypeToAsnNode(legacyResult);
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},
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};
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}
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