whatsthis/services/youtube.js

Discover embedable content from URL's

'use strict';

var embedframe = require('../embedframe');

/**
 * Detect if the given URL is an youtube URL.
 *
 * @param {Result} result Result of message parsing.
 * @param {Function} next Continuation callback.
 * @private
 */
module.exports = function youtube(result, next) {
  if (!/youtube\.com|youtu\.be/i.test(result.url.hostname)) {
    return next();
  }

  //
  // Check if it's a page url with v=<ocde> so we can extract it for the rest of
  // the logic.
  //
  if (result.url.query.v) {
    result.url.set('pathname', result.url.query.v);
  }

  //
  // In the case of a shortned url, we still want to produce a full length
  // youtube URL that we can use embeding, so we are going to rewrite and format
  // the URL so it because a full and valid URL
  //
  result.url.set('protocol', 'https:');
  result.url.set('hostname', 'youtube.com');
  result.url.set('pathname', '/embed/' + result.url.pathname.split('/').pop());

  result.type = 'video';
  result.service = 'youtube';
  result.html = embedframe(result.url.href);

  return next(undefined, true);
};