[ceskatelevize] Simplify

youtube_dl/extractor/ceskatelevize.py

@@ -12,7 +12,6 @@ from ..compat import (
 from ..utils import (
     ExtractorError,
     float_or_none,
-    HEADRequest,
 )
 
 
@@ -105,14 +104,16 @@ class CeskaTelevizeIE(SubtitlesInfoExtractor):
         duration = float_or_none(item.get('duration'))
         thumbnail = item.get('previewImageUrl')
 
-        # subtitles
-        subtitles = self.extract_subtitles(video_id, webpage)
+        subtitles = {}
+        subs = item.get('subtitles')
+        if subs:
+            subtitles['cs'] = subs[0]['url']
 
         if self._downloader.params.get('listsubtitles', False):
-            self._list_available_subtitles(video_id, webpage)
+            self._list_available_subtitles(video_id, subtitles)
             return
 
-        subtitles = self._fix_subtitles(self.extract_subtitles(video_id, webpage))
+        subtitles = self._fix_subtitles(self.extract_subtitles(video_id, subtitles))
 
         return {
             'id': episode_id,
@@ -124,13 +125,14 @@ class CeskaTelevizeIE(SubtitlesInfoExtractor):
             'subtitles': subtitles,
         }
 
-    def _fix_subtitles(self, subtitles):
-        """ Convert milisecond-based subtitles to SRT """
+    @staticmethod
+    def _fix_subtitles(subtitles):
+        """ Convert millisecond-based subtitles to SRT """
         if subtitles is None:
             return subtitles  # subtitles not requested
 
         def _msectotimecode(msec):
-            """ Helper utility to convert miliseconds to timecode """
+            """ Helper utility to convert milliseconds to timecode """
             components = []
             for divider in [1000, 60, 60, 100]:
                 components.append(msec % divider)
@@ -139,7 +141,7 @@ class CeskaTelevizeIE(SubtitlesInfoExtractor):
 
         def _fix_subtitle(subtitle):
             for line in subtitle.splitlines():
-                m = re.match(r"^ *([0-9]+); *([0-9]+) +([0-9]+) *$", line)
+                m = re.match(r"^\s*([0-9]+);\s*([0-9]+)\s+([0-9]+)\s*$", line)
                 if m:
                     yield m.group(1)
                     start, stop = (_msectotimecode(int(t)) for t in m.groups()[1:])
@@ -151,15 +153,3 @@ class CeskaTelevizeIE(SubtitlesInfoExtractor):
         for k, v in subtitles.items():
             fixed_subtitles[k] = "\r\n".join(_fix_subtitle(v))
         return fixed_subtitles
-
-    def _get_available_subtitles(self, video_id, webpage):
-        video_id = video_id.partition('-')[0]
-        url = 'http://imgct.ceskatelevize.cz/cache/data/ivysilani/' \
-              'subtitles/{}/{}/sub.txt'.format(video_id[:3], video_id)
-        req = HEADRequest(url)
-        sub = self._request_webpage(
-            req, video_id,
-            note="Checking subtitles",
-            errnote="No subtitles found",
-            fatal=False)
-        return {'cs': url} if sub else {}