Extract root certs from mozilla csv file

extract-root-certs.js

//get file from https://ccadb-public.secure.force.com/mozilla/IncludedCACertificateReportPEMCSV
const parse = require('csv-parse');
const fs = require('fs');
let data = fs.readFileSync(process.argv[2], {encoding: 'utf8'});
parse(data, {}, (err, lines) => {
	lines.forEach(line => {
		let name = line[0];
		name = name.substr(0, 15);
		let pem = line[28];
		pem = pem.substr(1, pem.length - 2);
		let certid = line[6];
		let id_bytes = certid.split(':').map(c => parseInt(c, 16));
		let base64_id = new Buffer(id_bytes).toString('base64');
		let filename = `${name}-${base64_id}.pem`;
		filename = filename.replace(new RegExp('\\\\', 'g'),'-');
		filename = filename.replace(new RegExp('/', 'g'),'-');
		filename = filename.replace(new RegExp(' ', 'g'),'_');
		
		console.log(filename);

		fs.writeFileSync(filename, pem);
	})
});

//for file in ./*.pem; do openssl x509 -outform der -in $file -out ${file%.pem}.der; done;