generate-parcel

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

const fs = require('fs');
const yargs = require('yargs');
const {PARCEL_SERIALIZER, serializeServiceMessage} = require('../core/serialization');
const {ServiceMessage} = require('../core/messages');

async function main(argv) {
    const messageSerialized = fs.readFileSync(process.stdin.fd);
    let parcelSerialized;

    try {
        parcelSerialized = await PARCEL_SERIALIZER.serialize(
            serializeServiceMessage(new ServiceMessage(messageSerialized, argv.type)),
            argv.recipientCert,
            fs.readFileSync(argv.senderCert),
            argv.senderKey,
            argv.signHashAlgo,
            argv.id,
            argv.date && new Date(argv.date * 1000),
            argv.ttl,
        );
    } catch (error) {
        console.error('Uncaught exception when serializing parcel:');
        console.error(error);
        return 1;
    }

    process.stdout.write(parcelSerialized);
}

const argv = yargs
    .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('type', {
        demandOption: true,
        requiresArg: true,
        description: "The media type of the input message (e.g., application/json)",
        normalize: true,
    })
    .option('sign-hash-algo', {
        requiresArg: true,
        description: 'The hashing algorithm to use in the signature',
    })
    .option('id', {
        requiresArg: true,
        description: "The parcel's unique id",
    })
    .option('date', {
        requiresArg: true,
        description: "The parcel's creation timestamp in UTC (defaults to now)",
        type: 'number',
    })
    .option('ttl', {
        requiresArg: true,
        description: "The parcel's TTL in seconds (defaults to 0)",
        type: 'number',
    })
    .strict()
    .help()
    .argv;

(async () => await main(argv))();