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improve script hex parsing validation

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Mononaut 2023-07-23 13:55:52 +09:00
parent 0ce043cca9
commit 48b55eed46
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1 changed files with 4 additions and 1 deletions
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5
frontend/src/app/bitcoin.utils.ts
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@ -283,7 +283,10 @@ export function isFeatureActive(network: string, height: number, feature: 'rbf'
} }
export async function calcScriptHash$(script: string): Promise<string> { export async function calcScriptHash$(script: string): Promise<string> {
const buf = Uint8Array.from(script.match(/.{1,2}/g).map((byte) => parseInt(byte, 16))); if (!/^[0-9a-fA-F]*$/.test(script) || script.length % 2 !== 0) {
throw new Error('script is not a valid hex string');
}
const buf = Uint8Array.from(script.match(/.{2}/g).map((byte) => parseInt(byte, 16)));
const hashBuffer = await crypto.subtle.digest('SHA-256', buf); const hashBuffer = await crypto.subtle.digest('SHA-256', buf);
const hashArray = Array.from(new Uint8Array(hashBuffer)); const hashArray = Array.from(new Uint8Array(hashBuffer));
return hashArray return hashArray