DemocracyOS/democracyos

#!/usr/bin/env node

var fs = require('fs')
var mkdir = fs.mkdirSync
var rm = fs.unlinkSync
var exists = fs.existsSync
var exec = require('child_process').exec
var program = require('commander')
var log = require('debug')('democracyos:certs')

program
  .option('-k --keyfile [serverKey]', 'Specifies the name of the generated key file (default: ssl/server.key)', 'ssl/server.key')
  .option('-c --certfile [serverCert]', 'Specifies the name of the generated certificate file (default: ssl/server.crt)', 'ssl/server.crt')
  .option('-s --subj [subj]', 'Specifices subject field data', '"/C=US/ST=Denial/L=Springfield/O=Dis/CN=www.example.com"')
  .option('-d --days [days]', 'Specifies the number of days to make a certificate valid for (default: 365)', '365')
  .parse(process.argv)

ensureDir(program.keyfile)
ensureDir(program.certfile)

var cmdGenRsa = 'openssl genrsa 1024 > ' + program.keyfile
var cmdReq = 'openssl req -new -subj ' + program.subj + ' -key ' + program.keyfile + ' -out csr.pem'
var cmdX509 = 'openssl x509 -req -days ' + program.days + ' -in csr.pem -signkey ' + program.keyfile + ' -out ' + program.certfile

exec(cmdGenRsa, function (err, stdout, stderr) {
  log('exec: %s', cmdGenRsa)
  if (stdout.length) console.log(stdout)
  if (err != null) {
    console.log('Exception: ' + err)
    process.exit(1)
    return
  }

  exec(cmdReq, function (err, stdout, stderr) {
    log('exec: %s', cmdReq)
    if (stdout.length) console.log(stdout)
    if (err != null) {
      console.log(err)
      process.exit(1)
      return
    }

    exec(cmdX509, function (err, stdout, stderr) {
      log('exec: %s', cmdX509)
      rm('csr.pem')
      if (stdout.length) console.log(stdout)
      if (err != null) {
        console.log(err)
        process.exit(1)
        return
      }
      process.exit(0)
    })
  })
})

/**
 * Ensures the directories specified in path exists
 * @param path (String) is the path of the file
 */
function ensureDir (path) {
  var dirs = getSubpaths(path)

  for (var d in dirs) {
    var name = dirs[d]
    log('ensuring %s', name)
    if (!exists(name)) mkdir(name)
  }

  function getSubpaths (path) {
    var splitted = path.split('/')
    var arr = []
    if (splitted.length > 1) {
      for (var i = 0; i < splitted.length - 1; i++) {
        var dir = ''
        for (var j = 0; j <= i; j++) {
          dir += splitted[j] + '/'
        }

        arr.push(dir)
      }
    }

    return arr
  }
}