index.js

// Copyright IBM Corp. 2015,2016. All Rights Reserved.
// Node module: strong-tunnel
// This file is licensed under the Artistic License 2.0.
// License text available at https://opensource.org/licenses/Artistic-2.0

'use strict';

var tunnel = require('./lib/tunnel');
var urlFmt = require('url').format;
var urlParse = require('url').parse;

module.exports = fromUrl;

function fromUrl(url, opts, callback) {
  if (callback === undefined && typeof opts === 'function') {
    callback = opts;
    opts = {};
  }
  opts = opts || {};

  var str = JSON.parse(JSON.stringify(url));
  var obj = str;

  if (typeof str === 'object') {
    str = urlFmt(str);
  } else if (typeof obj === 'string') {
    obj = urlParse(obj);
  }

  if (/\+ssh:$/.test(obj.protocol)) {
    obj.protocol = obj.protocol.replace(/\+ssh:$/, ':');
    // we've replaced the port, so delete host so URL is recomposed using
    // $hostname:$port for $host
    delete obj.host;
    tunnel(obj, opts, function(err, urlObj) {
      callback(err, urlFmt(urlObj));
    });
  } else {
    setImmediate(callback, null, url);
  }
}