Parse embed video URL snippet

media_tests.rb

test 'getting embed data for youtube urls' do
    result = {:youtube => 'dQw4w9WgXcQ'}
    ['http://youtu.be/dQw4w9WgXcQ',
    'http://www.youtube.com/embed/dQw4w9WgXcQ',
    'http://www.youtube.com/watch?v=dQw4w9WgXcQ',
    'https://www.YOUTUBE.com/?v=dQw4w9WgXcQ',
    'http://www.youtube.com/v/dQw4w9WgXcQ',
    'http://www.youtube.com/e/dQw4w9WgXcQ',
    'http://www.youtube.com/user/username#p/u/11/dQw4w9WgXcQ',
    'http://www.youtube.com/sandalsResorts#p/c/54B8C800269D7C1B/0/dQw4w9WgXcQ',
    'http://www.youtube.com/watch?feature=player_embedded&v=dQw4w9WgXcQ',
    'http://www.youtube.com/?feature=player_embedded&v=dQw4w9WgXcQ'].each do |url|
      m = Media.new({:url => url})
      assert_equal result, m.embed_data
    end
  end
  
  test 'getting embed data for vimeo urls' do
    {'http://vimeo.com/staffpicks#17769804' => '17769804',
     'http://vimeo.com/#/featured/19403316' => '19403316',
     'http://vimeo.com/channels/gnarchive#29824247' => '29824247',
     'https://vimeo.com/hd#28628704' => '28628704',
     'http://vimeo.com/couchmode/channels/hd/sort:newest/28628704' => '28628704',
     'http://VIMEO.COM/25108697' => '25108697',
     'http://www.vimeo.com/25108697' => '25108697'
      }.each do |url, result|
        m = Media.new({:url => url})
        assert_equal({:vimeo => result}, m.embed_data)
      end
  end

  test 'getting embed data for unknown urls' do
    url = 'http://example.com/1234'
    m = Media.new({:url => url})
    assert_equal({:other => url}, m.embed_data)
  end

parse_video_url.rb

# seemed like a good idea until I remembered OEmbed
# stored in case this is needed later


  # from http://stackoverflow.com/questions/2936467/parse-youtube-video-id-using-preg-match/6382259#6382259
  YOUTUBE_RX = Regexp.new('(?:youtube\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu\.be/)([^"&?/ ]{11})', true)
  VIMEO_RX   = Regexp.new('vimeo\.com/(.*[/#])*([0-9]+)\Z', true)
  
   # parse the media's URL and attempt to return a hash with the
  # type and the embed ID
  #
  # currently supports YouTube and Vimeo
  #
  # return values:
  #  nil
  #  {:youtube => 'video_id'}
  #  {:vimeo   => 'video_id'}
  #  {:other   => 'url'     }
  def embed_data
    return nil if url.blank?
    begin
      if m = YOUTUBE_RX.match(url)
        data = {:youtube => m[1]}
      elsif m = VIMEO_RX.match(url)
        data = {:vimeo => m[2]}
      end
    rescue; end
    data || {:other => url}
  end