GameSpotIE: support more urls and download videos in the best quality

youtube_dl/extractor/gamespot.py

@@ -4,14 +4,15 @@ import xml.etree.ElementTree
 from .common import InfoExtractor
 from ..utils import (
     unified_strdate,
+    compat_urllib_parse,
 )
 
 class GameSpotIE(InfoExtractor):
-    _VALID_URL = r'(?:http://)?(?:www\.)?gamespot\.com/([^/]+)/videos/([^/]+)-([^/d]+)/'
+    _VALID_URL = r'(?:http://)?(?:www\.)?gamespot\.com/.*-(?P<page_id>\d+)/?'
     _TEST = {
         u"url": u"http://www.gamespot.com/arma-iii/videos/arma-iii-community-guide-sitrep-i-6410818/",
         u"file": u"6410818.mp4",
-        u"md5": u"5569d64ca98db01f0177c934fe8c1e9b",
+        u"md5": u"b2a30deaa8654fcccd43713a6b6a4825",
         u"info_dict": {
             u"title": u"Arma III - Community Guide: SITREP I",
             u"upload_date": u"20130627", 
@@ -21,13 +22,22 @@ class GameSpotIE(InfoExtractor):
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
-        video_id = mobj.group(3).split("-")[-1]
-        info_url = "http://www.gamespot.com/pages/video_player/xml.php?id="+str(video_id)
+        page_id = mobj.group('page_id')
+        webpage = self._download_webpage(url, page_id)
+        video_id = self._html_search_regex([r'"og:video" content=".*?\?id=(\d+)"',
+                                            r'http://www\.gamespot\.com/videoembed/(\d+)'],
+                                           webpage, 'video id')
+        data = compat_urllib_parse.urlencode({'id': video_id, 'newplayer': '1'})
+        info_url = 'http://www.gamespot.com/pages/video_player/xml.php?' + data
         info_xml = self._download_webpage(info_url, video_id)
         doc = xml.etree.ElementTree.fromstring(info_xml)
         clip_el = doc.find('./playList/clip')
 
-        video_url = clip_el.find('./URI').text
+        http_urls = [{'url': node.find('filePath').text,
+                      'rate': int(node.find('rate').text)}
+            for node in clip_el.find('./httpURI')]
+        best_quality = sorted(http_urls, key=lambda f: f['rate'])[-1]
+        video_url = best_quality['url']
         title = clip_el.find('./title').text
         ext = video_url.rpartition('.')[2]
         thumbnail_url = clip_el.find('./screenGrabURI').text