X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Fextractor%2Fyoutube.py;h=9d3f61be62bacc03ee9a415051943091a903ab6b;hb=239e3e0cca362a3fecb702fe0ee11701ee3991b6;hp=b1e2edf75cbb59532ec092717f5efa5eaa9052f5;hpb=fe6fad124207979c7d656ceef1ab95c29dc14ac6;p=youtube-dl

diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index b1e2edf75..9d3f61be6 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -179,24 +179,29 @@ class YoutubeIE(InfoExtractor):
     def _decrypt_signature(self, s):
         """Turn the encrypted s field into a working signature"""
 
-        def voodoo(a, b):
-            c = a[0];
-            a[0] = a[b % len(a)];
-            a[b] = c;
-            return a;
-
-        s = list(s)
-        s = s[2:len(s)];
-        s = s[::-1];
-        s = s[3:len(s)];
-        s = voodoo(s, 9);
-        s = s[3:len(s)];
-        s = voodoo(s, 43);
-        s = s[3:len(s)];
-        s = s[::-1];
-        s = voodoo(s, 23);
-        s = "".join(s);
-        return s;
+        if len(s) == 92:
+            return s[25] + s[3:25] + s[0] + s[26:42] + s[79] + s[43:79] + s[91] + s[80:83]
+        elif len(s) == 90:
+            return s[25] + s[3:25] + s[2] + s[26:40] + s[77] + s[41:77] + s[89] + s[78:81]
+        elif len(s) == 88:
+            return s[48] + s[81:67:-1] + s[82] + s[66:62:-1] + s[85] + s[61:48:-1] + s[67] + s[47:12:-1] + s[3] + s[11:3:-1] + s[2] + s[12]
+        elif len(s) == 87:
+            return s[4:23] + s[86] + s[24:85]
+        elif len(s) == 86:
+            return s[2:63] + s[82] + s[64:82] + s[63]
+        elif len(s) == 85:
+            return s[2:8] + s[0] + s[9:21] + s[65] + s[22:65] + s[84] + s[66:82] + s[21]
+        elif len(s) == 84:
+            return s[83:36:-1] + s[2] + s[35:26:-1] + s[3] + s[25:3:-1] + s[26]
+        elif len(s) == 83:
+            return s[6] + s[3:6] + s[33] + s[7:24] + s[0] + s[25:33] + s[53] + s[34:53] + s[24] + s[54:]
+        elif len(s) == 82:
+            return s[36] + s[79:67:-1] + s[81] + s[66:40:-1] + s[33] + s[39:36:-1] + s[40] + s[35] + s[0] + s[67] + s[32:0:-1] + s[34]
+        elif len(s) == 81:
+            return s[6] + s[3:6] + s[33] + s[7:24] + s[0] + s[25:33] + s[2] + s[34:53] + s[24] + s[54:81]
+
+        else:
+            raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
 
     def _get_available_subtitles(self, video_id):
         self.report_video_subtitles_download(video_id)
@@ -588,8 +593,9 @@ class YoutubeIE(InfoExtractor):
                             else:
                                 player = u'html5 player %s' % self._search_regex(r'html5player-(.+?)\.js', video_webpage,
                                     'html5 player', fatal=False)
-                            self.to_screen('encrypted signature length %d (%d.%d), itag %s, %s' %
-                                (len(s), len(s.split('.')[0]), len(s.split('.')[1]), url_data['itag'][0], player))
+                            parts_sizes = u'.'.join(compat_str(len(part)) for part in s.split('.'))
+                            self.to_screen(u'encrypted signature length %d (%s), itag %s, %s' %
+                                (len(s), parts_sizes, url_data['itag'][0], player))
                         signature = self._decrypt_signature(url_data['s'][0])
                         url += '&signature=' + signature
                     if 'ratebypass' not in url:
@@ -725,7 +731,7 @@ class YoutubeChannelIE(InfoExtractor):
     _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)"
     _TEMPLATE_URL = 'http://www.youtube.com/channel/%s/videos?sort=da&flow=list&view=0&page=%s&gl=US&hl=en'
     _MORE_PAGES_INDICATOR = 'yt-uix-load-more'
-    _MORE_PAGES_URL = 'http://www.youtube.com/channel_ajax?action_load_more_videos=1&flow=list&paging=%s&view=0&sort=da&channel_id=%s'
+    _MORE_PAGES_URL = 'http://www.youtube.com/c4_browse_ajax?action_load_more_videos=1&flow=list&paging=%s&view=0&sort=da&channel_id=%s'
     IE_NAME = u'youtube:channel'
 
     def extract_videos_from_page(self, page):
@@ -892,12 +898,12 @@ class YoutubeShowIE(InfoExtractor):
         return [self.url_result('https://www.youtube.com' + season.group(1), 'YoutubePlaylist') for season in m_seasons]
 
 
-class YoutubeSubscriptionsIE(YoutubeIE):
-    """It's a subclass of YoutubeIE because we need to login"""
-    IE_DESC = u'YouTube.com subscriptions feed, "ytsubs" keyword(requires authentication)'
-    _VALID_URL = r'https?://www\.youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
-    IE_NAME = u'youtube:subscriptions'
-    _FEED_TEMPLATE = 'http://www.youtube.com/feed_ajax?action_load_system_feed=1&feed_name=subscriptions&paging=%s'
+class YoutubeFeedsInfoExtractor(YoutubeIE):
+    """
+    Base class for extractors that fetch info from
+    http://www.youtube.com/feed_ajax
+    Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
+    """
     _PAGING_STEP = 30
 
     # Overwrite YoutubeIE properties we don't want
@@ -906,18 +912,27 @@ class YoutubeSubscriptionsIE(YoutubeIE):
     def suitable(cls, url):
         return re.match(cls._VALID_URL, url) is not None
 
+    @property
+    def _FEED_TEMPLATE(self):
+        return 'http://www.youtube.com/feed_ajax?action_load_system_feed=1&feed_name=%s&paging=%%s' % self._FEED_NAME
+
+    @property
+    def IE_NAME(self):
+        return u'youtube:%s' % self._FEED_NAME
+
     def _real_initialize(self):
         (username, password) = self._get_login_info()
         if username is None:
             raise ExtractorError(u'No login info available, needed for downloading the Youtube subscriptions.', expected=True)
-        super(YoutubeSubscriptionsIE, self)._real_initialize()
+        super(YoutubeFeedsInfoExtractor, self)._real_initialize()
 
     def _real_extract(self, url):
         feed_entries = []
         # The step argument is available only in 2.7 or higher
         for i in itertools.count(0):
             paging = i*self._PAGING_STEP
-            info = self._download_webpage(self._FEED_TEMPLATE % paging, 'feed',
+            info = self._download_webpage(self._FEED_TEMPLATE % paging,
+                                          u'%s feed' % self._FEED_NAME,
                                           u'Downloading page %s' % i)
             info = json.loads(info)
             feed_html = info['feed_html']
@@ -926,4 +941,16 @@ class YoutubeSubscriptionsIE(YoutubeIE):
             feed_entries.extend(self.url_result(id, 'Youtube') for id in ids)
             if info['paging'] is None:
                 break
-        return self.playlist_result(feed_entries, playlist_title='Youtube Subscriptions')
+        return self.playlist_result(feed_entries, playlist_title=self._PLAYLIST_TITLE)
+
+class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
+    IE_DESC = u'YouTube.com subscriptions feed, "ytsubs" keyword(requires authentication)'
+    _VALID_URL = r'https?://www\.youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
+    _FEED_NAME = 'subscriptions'
+    _PLAYLIST_TITLE = u'Youtube Subscriptions'
+
+class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
+    IE_DESC = u'YouTube.com recommended videos, "ytrec" keyword (requires authentication)'
+    _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
+    _FEED_NAME = 'recommended'
+    _PLAYLIST_TITLE = u'Youtube Recommended videos'