generate-cargo

#!/usr/bin/env node
'use strict';
// This is a proof of concept. The code below is ugly, inefficient and has no tests.

const assert = require('assert');
const fs = require('fs');
const yargs = require('yargs');
const {CARGO_SERIALIZER, serializeCargoPayload} = require('../core/serialization');

async function main(argv) {
    const parcelPaths = argv.parcel || [];
    assert(parcelPaths.length, 'One or more parcels must be passed');
    const parcels = parcelPaths.map(p => fs.readFileSync(p));
    process.stdout.write(await CARGO_SERIALIZER.serialize(
        serializeCargoPayload(...parcels),
        argv.recipientCert,
        fs.readFileSync(argv.senderCert),
        argv.senderKey,
        argv.signHashAlgo,
        argv.id,
        argv.date && new Date(argv.date * 1000),
        argv.ttl,
    ));
}

function configureArgs(builder) {
    builder
        .option('recipient-cert', {
            demandOption: true,
            requiresArg: true,
            description: "The recipient's X.509 certificate (chain), PEM-encoded",
            normalize: true,
        })
        .option('sender-cert', {
            demandOption: true,
            requiresArg: true,
            description: "The sender's X.509 certificate (chain), PEM-encoded",
            normalize: true,
        })
        .option('sender-key', {
            demandOption: true,
            requiresArg: true,
            description: "The sender's X.509 key (PEM-encoded) to sign the message",
            normalize: true,
        })
        .option('sign-hash-algo', {
            requiresArg: true,
            description: 'The hashing algorithm to use in the signature',
        })
        .option('id', {
            requiresArg: true,
            description: "The cargo's unique id",
        })
        .option('date', {
            requiresArg: true,
            description: "The cargo's creation timestamp in UTC (defaults to now)",
        })
        .option('ttl', {
            requiresArg: true,
            description: "The cargo's TTL in seconds (defaults to 0)",
            type: 'number',
        })
        .normalize('parcel')
    ;
}

// noinspection BadExpressionStatementJS
yargs
    .command('$0 [parcel..]', 'Generate cargo', configureArgs, main) // noinspection JSUnresolvedFunction
    .strict()
    .help()
    .argv;