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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 38 39 40 | 11x 11x 11x 11x 33x 1x 32x 5x 27x 32x 5x 27x 32x 27x 5x 11x | 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 | {[key: string]: string} | string[] | number[], strB: string | {[key: string]: string} | string[] | number[], ): boolean { let buffA: Buffer; let buffB: Buffer; if (typeof strA !== typeof strB) { throw new ShopifyErrors.SafeCompareError( `Mismatched data types provided: ${typeof strA} and ${typeof strB}`, ); } if (typeof strA === 'object') { buffA = Buffer.from(JSON.stringify(strA)); } else { buffA = Buffer.from(strA); } if (typeof strB === 'object') { buffB = Buffer.from(JSON.stringify(strB)); } else { buffB = Buffer.from(strB); } if (buffA.length === buffB.length) { return crypto.timingSafeEqual(buffA, buffB); } return false; } |