[motorsport] Fix extraction and make trailing '/' optional

They directly embed a youtube video now.

youtube_dl/extractor/motorsport.py

@@ -1,63 +1,49 @@
 # coding: utf-8
 from __future__ import unicode_literals
 
-import hashlib
-import json
-import time
-
 from .common import InfoExtractor
 from ..compat import (
-    compat_parse_qs,
-    compat_str,
-)
-from ..utils import (
-    int_or_none,
+    compat_urlparse,
 )
 
 
 class MotorsportIE(InfoExtractor):
     IE_DESC = 'motorsport.com'
-    _VALID_URL = r'http://www\.motorsport\.com/[^/?#]+/video/(?:[^/?#]+/)(?P<id>[^/]+)/(?:$|[?#])'
+    _VALID_URL = r'http://www\.motorsport\.com/[^/?#]+/video/(?:[^/?#]+/)(?P<id>[^/]+)/?(?:$|[?#])'
     _TEST = {
         'url': 'http://www.motorsport.com/f1/video/main-gallery/red-bull-racing-2014-rules-explained/',
-        'md5': '5592cb7c5005d9b2c163df5ac3dc04e4',
         'info_dict': {
-            'id': '7063',
+            'id': '2-T3WuR-KMM',
             'ext': 'mp4',
             'title': 'Red Bull Racing: 2014 Rules Explained',
-            'duration': 207,
+            'duration': 208,
             'description': 'A new clip from Red Bull sees Daniel Ricciardo and Sebastian Vettel explain the 2014 Formula One regulations – which are arguably the most complex the sport has ever seen.',
-            'uploader': 'rainiere',
-            'thumbnail': r're:^http://.*motorsport\.com/.+\.jpg$'
-        }
+            'uploader': 'mcomstaff',
+            'uploader_id': 'UC334JIYKkVnyFoNCclfZtHQ',
+            'upload_date': '20140903',
+            'thumbnail': r're:^https?://.+\.jpg$'
+        },
+        'add_ie': ['Youtube'],
+        'params': {
+            'skip_download': True,
+        },
     }
 
     def _real_extract(self, url):
         display_id = self._match_id(url)
         webpage = self._download_webpage(url, display_id)
 
-        flashvars_code = self._html_search_regex(
-            r'<embed id="player".*?flashvars="([^"]+)"', webpage, 'flashvars')
-        flashvars = compat_parse_qs(flashvars_code)
-        params = json.loads(flashvars['parameters'][0])
-
-        e = compat_str(int(time.time()) + 24 * 60 * 60)
-        base_video_url = params['location'] + '?e=' + e
-        s = 'h3hg713fh32'
-        h = hashlib.md5((s + base_video_url).encode('utf-8')).hexdigest()
-        video_url = base_video_url + '&h=' + h
-
-        uploader = self._html_search_regex(
-            r'(?s)<span class="label">Video by: </span>(.*?)</a>', webpage,
-            'uploader', fatal=False)
+        iframe_path = self._html_search_regex(
+            r'<iframe id="player_iframe"[^>]+src="([^"]+)"', webpage,
+            'iframe path')
+        iframe = self._download_webpage(
+            compat_urlparse.urljoin(url, iframe_path), display_id,
+            'Downloading iframe')
+        youtube_id = self._search_regex(
+            r'www.youtube.com/embed/(.{11})', iframe, 'youtube id')
 
         return {
-            'id': params['video_id'],
+            '_type': 'url_transparent',
             'display_id': display_id,
-            'title': params['title'],
-            'url': video_url,
-            'description': params.get('description'),
-            'thumbnail': params.get('main_thumb'),
-            'duration': int_or_none(params.get('duration')),
-            'uploader': uploader,
+            'url': 'https://youtube.com/watch?v=%s' % youtube_id,
         }