@waku/rln/bundle/node_modules/@chainsafe/is-ip/lib/parse.js

RLN (Rate Limiting Nullifier) implementation for Waku

import { Parser } from './parser.js';

// See https://stackoverflow.com/questions/166132/maximum-length-of-the-textual-representation-of-an-ipv6-address
const MAX_IPV6_LENGTH = 45;
const MAX_IPV4_LENGTH = 15;
const parser = new Parser();
/** Parse `input` into IPv4 bytes. */
function parseIPv4(input) {
    if (input.length > MAX_IPV4_LENGTH) {
        return undefined;
    }
    return parser.new(input).parseWith(() => parser.readIPv4Addr());
}
/** Parse `input` into IPv6 bytes. */
function parseIPv6(input) {
    // strip zone index if it is present
    if (input.includes("%")) {
        input = input.split("%")[0];
    }
    if (input.length > MAX_IPV6_LENGTH) {
        return undefined;
    }
    return parser.new(input).parseWith(() => parser.readIPv6Addr());
}

export { parseIPv4, parseIPv6 };