throttle-proxy/lib/args.js

Throttle HTTP/HTTPS/SOCKS proxy server

const debug = require('debug');
const program = require('commander');
const packageInfo = require('../package.json');

const DEFAULT_PORT = 1080;
const DEFAULT_PAC_PORT = 3128;
const DEFAULT_INCOMING_SPEED = 100000;
const DEFAULT_OUTGOING_SPEED = 100000;
const DEFAULT_DELAY = 0;

function parser(str, defaultValue) {
  const value = parseInt(str, 10);

  return isNaN(value) ? defaultValue : value;
}

program
  .option(
    '-p, --port <n>',
    'incoming port number',
    parser,
    DEFAULT_PORT
  )
  .option(
    '-s, --incoming-speed <n>',
    'max incoming speed (Bps)',
    parser,
    DEFAULT_INCOMING_SPEED
  )
  .option(
    '    --outgoing-speed <n>',
    'max outgoing speed (Bps)',
    parser,
    DEFAULT_OUTGOING_SPEED
  )
  .option(
    '-d, --delay <n>',
    'delay response by time (ms)',
    parser,
    DEFAULT_DELAY
  )
  .option(
    '    --pac-port <n>',
    'PAC-server port number',
    parser,
    DEFAULT_PAC_PORT
  )
  .option(
    '-v, --verbose',
    'cause throttle-proxy to be verbose'
  )
  .version(packageInfo.version)
  .parse(process.argv);

if (program.verbose) {
  debug.enable('throttle-proxy:*');
}

module.exports = program;