@onslip/hawk/lib/deps/hapi-b64.js

HTTP Hawk Authentication Scheme

'use strict';

const Buffer = require('buffer').Buffer;
const Hoek = require('./hapi-hoek');

// const Decoder = require('./decoder');
// const Encoder = require('./encoder');


// exports.decode = Decoder.decode;

// exports.encode = Encoder.encode;

// exports.Decoder = Decoder.Decoder;

// exports.Encoder = Encoder.Encoder;


// Base64url (RFC 4648) encode

exports.base64urlEncode = function (value, encoding) {

    Hoek.assert(typeof value === 'string' || Buffer.isBuffer(value), 'value must be string or buffer');
    const buf = (Buffer.isBuffer(value) ? value : Buffer.from(value, encoding || 'binary'));
    return buf.toString('base64').replace(/\+/g, '-').replace(/\//g, '_').replace(/\=/g, '');
};


// Base64url (RFC 4648) decode

exports.base64urlDecode = function (value, encoding) {

    if (typeof value !== 'string') {

        throw new Error('Value not a string');
    }

    if (!/^[\w\-]*$/.test(value)) {

        throw new Error('Invalid character');
    }

    const buf = Buffer.from(value, 'base64');
    return (encoding === 'buffer' ? buf : buf.toString(encoding || 'binary'));
};