@multiformats/multiaddr/dist/src/protocols-table.js

multiaddr implementation (binary + string representation of network addresses)

const V = -1;
export const names = {};
export const codes = {};
export const table = [
    [4, 32, 'ip4'],
    [6, 16, 'tcp'],
    [33, 16, 'dccp'],
    [41, 128, 'ip6'],
    [42, V, 'ip6zone'],
    [43, 8, 'ipcidr'],
    [53, V, 'dns', true],
    [54, V, 'dns4', true],
    [55, V, 'dns6', true],
    [56, V, 'dnsaddr', true],
    [132, 16, 'sctp'],
    [273, 16, 'udp'],
    [275, 0, 'p2p-webrtc-star'],
    [276, 0, 'p2p-webrtc-direct'],
    [277, 0, 'p2p-stardust'],
    [280, 0, 'webrtc-direct'],
    [281, 0, 'webrtc'],
    [290, 0, 'p2p-circuit'],
    [301, 0, 'udt'],
    [302, 0, 'utp'],
    [400, V, 'unix', false, true],
    // `ipfs` is added before `p2p` for legacy support.
    // All text representations will default to `p2p`, but `ipfs` will
    // still be supported
    [421, V, 'ipfs'],
    // `p2p` is the preferred name for 421, and is now the default
    [421, V, 'p2p'],
    [443, 0, 'https'],
    [444, 96, 'onion'],
    [445, 296, 'onion3'],
    [446, V, 'garlic64'],
    [448, 0, 'tls'],
    [449, V, 'sni'],
    [460, 0, 'quic'],
    [461, 0, 'quic-v1'],
    [465, 0, 'webtransport'],
    [466, V, 'certhash'],
    [477, 0, 'ws'],
    [478, 0, 'wss'],
    [479, 0, 'p2p-websocket-star'],
    [480, 0, 'http'],
    [481, V, 'http-path'],
    [777, V, 'memory']
];
// populate tables
table.forEach(row => {
    const proto = createProtocol(...row);
    codes[proto.code] = proto;
    names[proto.name] = proto;
});
export function createProtocol(code, size, name, resolvable, path) {
    return {
        code,
        size,
        name,
        resolvable: Boolean(resolvable),
        path: Boolean(path)
    };
}
/**
 * For the passed proto string or number, return a {@link Protocol}
 *
 * @example
 *
 * ```js
 * import { protocol } from '@multiformats/multiaddr'
 *
 * console.info(protocol(4))
 * // { code: 4, size: 32, name: 'ip4', resolvable: false, path: false }
 * ```
 *
 * @deprecated This will be removed in a future version
 */
export function getProtocol(proto) {
    if (typeof proto === 'number') {
        if (codes[proto] != null) {
            return codes[proto];
        }
        throw new Error(`no protocol with code: ${proto}`);
    }
    else if (typeof proto === 'string') {
        if (names[proto] != null) {
            return names[proto];
        }
        throw new Error(`no protocol with name: ${proto}`);
    }
    throw new Error(`invalid protocol id type: ${typeof proto}`);
}
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