mirror of
https://github.com/ytdl-org/youtube-dl.git
synced 2024-11-25 19:52:11 +00:00
implement fallbacks and defaults in _search_regex
This commit is contained in:
Filippo Valsorda
parent
ac3e9394e7
commit
468e2e926b
2 changed files with 48 additions and 41 deletions
|
|
@ -191,19 +191,37 @@ class InfoExtractor(object):
|
|||
video_info['title'] = playlist_title
|
||||
return video_info
|
||||
|
||||
def _search_regex(self, pattern, text, name, fatal=True, flags=0):
|
||||
"""Extract a field from some text based on regex"""
|
||||
mobj = re.search(pattern, text, flags)
|
||||
if mobj is None and fatal:
|
||||
raise ExtractorError(u'Unable to extract %s; '
|
||||
u'please report this issue on GitHub.' % name)
|
||||
elif mobj is None:
|
||||
self._downloader.report_warning(u'unable to extract %s; '
|
||||
u'please report this issue on GitHub.' % name)
|
||||
return None
|
||||
def _search_regex(self, pattern, string, name, default=None, fatal=True, flags=0):
|
||||
"""
|
||||
Perform a regex search on the given string, using a single or a list of
|
||||
patterns returning the first matching group.
|
||||
In case of failure return a default value or raise a WARNING or a
|
||||
ExtractorError, depending on fatal, specifying the field name.
|
||||
"""
|
||||
if isinstance(pattern, (str, compat_str, compiled_regex_type)):
|
||||
mobj = re.search(pattern, string, flags)
|
||||
else:
|
||||
# return the first matched group
|
||||
for p in pattern:
|
||||
mobj = re.search(p, string, flags)
|
||||
if mobj: break
|
||||
|
||||
if sys.stderr.isatty() and os.name != 'nt':
|
||||
_name = u'\033[0;34m%s\033[0m' % name
|
||||
else:
|
||||
_name = name
|
||||
|
||||
if mobj:
|
||||
# return the first matching group
|
||||
return next(g for g in mobj.groups() if g is not None)
|
||||
elif default is not None:
|
||||
return default
|
||||
elif fatal:
|
||||
raise ExtractorError(u'Unable to extract %s; '
|
||||
u'please report this issue on GitHub.' % _name)
|
||||
else:
|
||||
self._downloader.report_warning(u'unable to extract %s; '
|
||||
u'please report this issue on GitHub.' % _name)
|
||||
return None
|
||||
|
||||
class SearchInfoExtractor(InfoExtractor):
|
||||
"""
|
||||
|
|
@ -2820,12 +2838,8 @@ class StanfordOpenClassroomIE(InfoExtractor):
|
|||
note='Downloading course info page',
|
||||
errnote='Unable to download course info page')
|
||||
|
||||
# TODO: implement default_value in search_regex
|
||||
m = re.search('<h1>([^<]+)</h1>', coursepage)
|
||||
if m:
|
||||
info['title'] = unescapeHTML(m.group(1))
|
||||
else:
|
||||
info['title'] = info['id']
|
||||
info['title'] = self._search_regex('<h1>([^<]+)</h1>', coursepage, 'title', default=info['id'])
|
||||
info['title'] = unescapeHTML(info['title'])
|
||||
|
||||
info['description'] = self._search_regex('<description>([^<]+)</description>',
|
||||
coursepage, u'description', fatal=False)
|
||||
|
|
@ -3108,12 +3122,8 @@ class GooglePlusIE(InfoExtractor):
|
|||
|
||||
# Extract title
|
||||
# Get the first line for title
|
||||
# TODO: implement default_value in search_regex
|
||||
video_title = u'NA'
|
||||
pattern = r'<meta name\=\"Description\" content\=\"(.*?)[\n<"]'
|
||||
mobj = re.search(pattern, webpage)
|
||||
if mobj:
|
||||
video_title = mobj.group(1)
|
||||
video_title = self._search_regex(r'<meta name\=\"Description\" content\=\"(.*?)[\n<"]',
|
||||
webpage, 'title', default=u'NA')
|
||||
|
||||
# Step 2, Stimulate clicking the image box to launch video
|
||||
video_page = self._search_regex('"(https\://plus\.google\.com/photos/.*?)",,"image/jpeg","video"\]',
|
||||
|
|
@ -3167,23 +3177,21 @@ class NBAIE(InfoExtractor):
|
|||
|
||||
video_url = u'http://ht-mobile.cdn.turner.com/nba/big' + video_id + '_nba_1280x720.mp4'
|
||||
|
||||
# TODO: implement default_value in search_regex
|
||||
def _findProp(rexp, default=None):
|
||||
m = re.search(rexp, webpage)
|
||||
if m:
|
||||
return unescapeHTML(m.group(1))
|
||||
else:
|
||||
return default
|
||||
|
||||
shortened_video_id = video_id.rpartition('/')[2]
|
||||
title = _findProp(r'<meta property="og:title" content="(.*?)"', shortened_video_id).replace('NBA.com: ', '')
|
||||
title = self._search_regex(r'<meta property="og:title" content="(.*?)"',
|
||||
webpage, 'title', default=shortened_video_id).replace('NBA.com: ', '')
|
||||
|
||||
uploader_date = self._search_regex(r'<b>Date:</b> (.*?)</div>', webpage, 'upload_date', fatal=False)
|
||||
|
||||
description = self._search_regex(r'<div class="description">(.*?)</h1>', webpage, 'description', fatal=False)
|
||||
|
||||
info = {
|
||||
'id': shortened_video_id,
|
||||
'url': video_url,
|
||||
'ext': 'mp4',
|
||||
'title': title,
|
||||
'uploader_date': _findProp(r'<b>Date:</b> (.*?)</div>'),
|
||||
'description': _findProp(r'<div class="description">(.*?)</h1>'),
|
||||
'uploader_date': uploader_date,
|
||||
'description': description,
|
||||
}
|
||||
return [info]
|
||||
|
||||
|
|
@ -3335,13 +3343,9 @@ class FunnyOrDieIE(InfoExtractor):
|
|||
webpage, u'video URL', flags=re.DOTALL)
|
||||
video_url = unescapeHTML(video_url)
|
||||
|
||||
# TODO: implement fallbacks in regex_search
|
||||
m = re.search(r"<h1 class='player_page_h1'.*?>(?P<title>.*?)</h1>", webpage, flags=re.DOTALL)
|
||||
if not m:
|
||||
m = re.search(r'<title>(?P<title>[^<]+?)</title>', webpage)
|
||||
if not m:
|
||||
raise ExtractorError(u'Cannot find video title')
|
||||
title = clean_html(m.group('title'))
|
||||
title = self._search_regex((r"<h1 class='player_page_h1'.*?>(?P<title>.*?)</h1>",
|
||||
r'<title>(?P<title>[^<]+?)</title>'), webpage, 'title', flags=re.DOTALL)
|
||||
title = clean_html(title)
|
||||
|
||||
video_description = self._search_regex(r'<meta property="og:description" content="(?P<desc>.*?)"',
|
||||
webpage, u'description', flags=re.DOTALL)
|
||||
|
|
|
|||
|
|
@ -154,6 +154,9 @@ def compat_ord(c):
|
|||
if type(c) is int: return c
|
||||
else: return ord(c)
|
||||
|
||||
# This is not clearly defined otherwise
|
||||
compiled_regex_type = type(re.compile(''))
|
||||
|
||||
std_headers = {
|
||||
'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0',
|
||||
'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
|
||||
|
|
|
|||
Loading…
Reference in a new issue