@corvina/cidr/dist/endpoint.js

CIDR Operation helper

import { cidr, ip } from './cidr';
export function validateIpAddressForEndpoint(value) {
    if (!value) {
        throw new Error('Invalid');
    }
    let [address, mask] = value.split('/');
    if (!mask) {
        const err = ip.validate(address);
        if (err) {
            throw new Error(err);
        }
        return value;
    }
    else {
        if (mask.includes('.')) {
            const err = ip.validate(mask);
            if (err) {
                throw new Error(err);
            }
            mask = convertNetmaskToBitmask(mask).toString();
            value = `${address}/${mask}`;
        }
        value = `${cidr.min(value)}/${mask}`;
        const err = cidr.validate(value);
        if (err) {
            throw new Error(err);
        }
        return value;
    }
}
export function convertNetworkAddressWithBitmaskToNetmask(value) {
    if (value.includes('/')) {
        let [address, mask] = value.split('/');
        if (!mask) {
            return value;
        }
        if (!mask.includes('.')) {
            mask = convertBitmaskToNetmask(parseInt(mask)).toString();
            value = `${address}/${mask}`;
            return value;
        }
    }
    return value;
}
export function convertBitmaskToNetmask(bitCount) {
    var mask = [], i, n;
    for (i = 0; i < 4; i++) {
        n = Math.min(bitCount, 8);
        mask.push(256 - Math.pow(2, 8 - n));
        bitCount -= n;
    }
    return mask.join('.');
}
export function convertNetmaskToBitmask(netmask) {
    const netmaskOctets = netmask.split('.');
    const netmaskBits = netmaskOctets.map((octet) => parseInt(octet, 10).toString(2));
    const bitmask = netmaskBits
        .join('')
        .split('')
        .filter((bit) => bit === '1').length;
    return bitmask;
}
export function anonymizeIp(ipAddress, maskLength) {
    const binaryAddress = ip.toBinary(ipAddress);
    const anonymizedBinaryAddress = binaryAddress
        .replace(/\./g, '')
        .slice(0, maskLength)
        .padEnd(32, '0')
        .replace(/(.{8})(?=.)/g, '$1.');
    return ip.binaryToIpString(anonymizedBinaryAddress);
}
//# sourceMappingURL=endpoint.js.map