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-rw-r--r--youtube_dl/extractor/common.py7
1 files changed, 6 insertions, 1 deletions
diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index 2c8ec1417..519188622 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -1959,7 +1959,12 @@ class InfoExtractor(object):
media_tags = [(media_tag, media_type, '')
for media_tag, media_type
in re.findall(r'(?s)(<(video|audio)[^>]*/>)', webpage)]
- media_tags.extend(re.findall(r'(?s)(<(?P<tag>video|audio)[^>]*>)(.*?)</(?P=tag)>', webpage))
+ media_tags.extend(re.findall(
+ # We only allow video|audio followed by a whitespace or '>'.
+ # Allowing more characters may end up in significant slow down (see
+ # https://github.com/rg3/youtube-dl/issues/11979, example URL:
+ # http://www.porntrex.com/maps/videositemap.xml).
+ r'(?s)(<(?P<tag>video|audio)(?:\s+[^>]*)?>)(.*?)</(?P=tag)>', webpage))
for media_tag, media_type, media_content in media_tags:
media_info = {
'formats': [],