Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 41 42 43 44 45 46 47 | 31x 31x 31x 31x 44x 15x 15x 27x 27x 2x 2x 7x | import { sha256 } from '@noble/hashes/sha2.js';
import { Buffer } from 'buffer';
import VerifierError from '../models/verifierError';
import { toByteArray } from '../helpers/data';
import { getText } from '../domain/i18n/useCases';
import type { Receipt } from '../models/Receipt';
export default function ensureValidReceipt (receipt: Receipt): void {
let proofHash = receipt.targetHash;
const merkleRoot = receipt.merkleRoot;
try {
const proof = receipt.proof ?? receipt.path;
const isProof = !!proof;
if (isProof) {
for (const index in proof) {
const node = proof[index];
let appendedBuffer;
if (typeof node.left !== 'undefined') {
appendedBuffer = toByteArray(`${node.left}${proofHash}`);
proofHash = Buffer.from(sha256(Uint8Array.from(appendedBuffer))).toString('hex');
} else if (typeof node.right !== 'undefined') {
appendedBuffer = toByteArray(`${proofHash}${node.right}`);
proofHash = Buffer.from(sha256(Uint8Array.from(appendedBuffer))).toString('hex');
} else {
throw new VerifierError(
'checkReceipt',
'Trigger catch error.'
);
}
}
}
} catch (e) {
throw new VerifierError(
'checkReceipt',
getText('errors', 'ensureValidReceipt')
);
}
if (proofHash !== merkleRoot) {
throw new VerifierError(
'checkReceipt',
getText('errors', 'invalidMerkleReceipt')
);
}
}
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