clean_html,
compiled_regex_type,
ExtractorError,
+ unescapeHTML,
)
class InfoExtractor(object):
@classmethod
def suitable(cls, url):
"""Receives a URL and returns True if suitable for this IE."""
- return re.match(cls._VALID_URL, url) is not None
+
+ # This does not use has/getattr intentionally - we want to know whether
+ # we have cached the regexp for *this* class, whereas getattr would also
+ # match the superclass
+ if '_VALID_URL_RE' not in cls.__dict__:
+ cls._VALID_URL_RE = re.compile(cls._VALID_URL)
+ return cls._VALID_URL_RE.match(url) is not None
@classmethod
def working(cls):
def _download_webpage_handle(self, url_or_request, video_id, note=None, errnote=None):
""" Returns a tuple (page content as string, URL handle) """
+
+ # Strip hashes from the URL (#1038)
+ if isinstance(url_or_request, (compat_str, str)):
+ url_or_request = url_or_request.partition('#')[0]
+
urlh = self._request_webpage(url_or_request, video_id, note, errnote)
content_type = urlh.headers.get('Content-Type', '')
m = re.match(r'[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+\s*;\s*charset=(.+)', content_type)
return (username, password)
+ # Helper functions for extracting OpenGraph info
+ @staticmethod
+ def _og_regex(prop):
+ return r'<meta.+?property=[\'"]og:%s[\'"].+?content=(?:"(.+?)"|\'(.+?)\')' % re.escape(prop)
+
+ def _og_search_property(self, prop, html, name=None, **kargs):
+ if name is None:
+ name = 'OpenGraph %s' % prop
+ escaped = self._search_regex(self._og_regex(prop), html, name, flags=re.DOTALL, **kargs)
+ return unescapeHTML(escaped)
+
+ def _og_search_thumbnail(self, html, **kargs):
+ return self._og_search_property('image', html, u'thumbnail url', fatal=False, **kargs)
+
+ def _og_search_description(self, html, **kargs):
+ return self._og_search_property('description', html, fatal=False, **kargs)
+
+ def _og_search_title(self, html, **kargs):
+ return self._og_search_property('title', html, **kargs)
+
+ def _og_search_video_url(self, html, name='video url', **kargs):
+ return self._html_search_regex([self._og_regex('video:secure_url'),
+ self._og_regex('video')],
+ html, name, **kargs)
+
class SearchInfoExtractor(InfoExtractor):
"""
Base class for paged search queries extractors.