31 lines
1.0 KiB
JavaScript
31 lines
1.0 KiB
JavaScript
import { encoder, decoder } from '../lib/buffer_utils.js';
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import { encodeBase64, decodeBase64 } from '../lib/base64.js';
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export function decode(input) {
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if (Uint8Array.fromBase64) {
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return Uint8Array.fromBase64(typeof input === 'string' ? input : decoder.decode(input), {
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alphabet: 'base64url',
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});
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}
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let encoded = input;
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if (encoded instanceof Uint8Array) {
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encoded = decoder.decode(encoded);
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}
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encoded = encoded.replace(/-/g, '+').replace(/_/g, '/');
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try {
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return decodeBase64(encoded);
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}
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catch {
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throw new TypeError('The input to be decoded is not correctly encoded.');
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}
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}
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export function encode(input) {
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let unencoded = input;
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if (typeof unencoded === 'string') {
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unencoded = encoder.encode(unencoded);
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}
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if (Uint8Array.prototype.toBase64) {
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return unencoded.toBase64({ alphabet: 'base64url', omitPadding: true });
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}
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return encodeBase64(unencoded).replace(/=/g, '').replace(/\+/g, '-').replace(/\//g, '_');
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}
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