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Dawid Dziurla
28 lines
1.1 KiB
TypeScript
28 lines
1.1 KiB
TypeScript
import { Transform } from 'node:stream';
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import crypto from 'node:crypto';
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/**
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* Options for the relaxed body hash stream
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*/
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export interface RelaxedBodyOptions {
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/** Hash algorithm for the body hash, defaults to sha256 */
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hashAlgo?: string | undefined;
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/** Collect the canonicalized body and emit it with the 'hash' event */
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debug?: boolean | undefined;
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}
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/**
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* Passes the message body through unchanged and hashes its relaxed
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* canonicalization (RFC 6376 section 3.4.4) on the side: whitespace at the end
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* of a line is dropped, runs of whitespace within a line become a single space,
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* every line ends with CRLF, empty lines at the end of the body are ignored and
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* a non-empty body always ends with CRLF. Bytes are canonicalized as they arrive,
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* so a line of any length costs constant memory.
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*/
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export default class RelaxedBody extends Transform {
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bodyHash: crypto.Hash;
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/** Bytes of the original body seen so far */
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byteLength: number;
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debug: boolean | undefined;
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constructor(options?: RelaxedBodyOptions);
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updateHash(chunk: Buffer, final?: boolean): void;
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}
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