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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | 11x 11x 11x 26x 25x 25x 25x 5x 5x 20x 20x 25x 20x 1x 5x | import crypto from 'crypto';
import * as ShopifyErrors from '../error';
/**
* A timing safe string comparison utility.
*
* @param strA any string, array of strings, or object with string values
* @param strB any string, array of strings, or object with string values
*/
export default function safeCompare(
strA: string | Record<string, string> | string[] | number[],
strB: string | Record<string, string> | string[] | number[],
): boolean {
if (typeof strA === typeof strB) {
let buffA: Buffer;
let buffB: Buffer;
if (typeof strA === 'object' && typeof strB === 'object') {
buffA = Buffer.from(JSON.stringify(strA));
buffB = Buffer.from(JSON.stringify(strB));
} else {
buffA = Buffer.from(strA);
buffB = Buffer.from(strB);
}
if (buffA.length === buffB.length) {
return crypto.timingSafeEqual(buffA, buffB);
}
} else {
throw new ShopifyErrors.SafeCompareError(
`Mismatched data types provided: ${typeof strA} and ${typeof strB}`,
);
}
return false;
}
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