[redtube] Capture and output removed video message (#5281)

youtube_dl/extractor/redtube.py

@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 
 from .common import InfoExtractor
+from ..utils import ExtractorError
 
 
 class RedTubeIE(InfoExtractor):
@@ -19,6 +20,9 @@ class RedTubeIE(InfoExtractor):
         video_id = self._match_id(url)
         webpage = self._download_webpage(url, video_id)
 
+        if any(s in webpage for s in ['video-deleted-info', '>This video has been removed']):
+            raise ExtractorError('Video %s has been removed' % video_id, expected=True)
+
         video_url = self._html_search_regex(
             r'<source src="(.+?)" type="video/mp4">', webpage, 'video URL')
         video_title = self._html_search_regex(