diff options
Diffstat (limited to 'youtube_dl/extractor/common.py')
| -rw-r--r-- | youtube_dl/extractor/common.py | 94 |
1 files changed, 81 insertions, 13 deletions
diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py index d4af3b5eb..5656445a3 100644 --- a/youtube_dl/extractor/common.py +++ b/youtube_dl/extractor/common.py @@ -4,19 +4,22 @@ import re import socket import sys import netrc +import xml.etree.ElementTree from ..utils import ( compat_http_client, compat_urllib_error, - compat_urllib_request, compat_str, clean_html, compiled_regex_type, ExtractorError, + RegexNotFoundError, + sanitize_filename, unescapeHTML, ) + class InfoExtractor(object): """Information Extractor class. @@ -61,11 +64,22 @@ class InfoExtractor(object): * ext Will be calculated from url if missing * format A human-readable description of the format ("mp4 container with h264/opus"). - Calculated from width and height if missing. + Calculated from the format_id, width, height. + and format_note fields if missing. * format_id A short description of the format ("mp4_h264_opus" or "19") + * format_note Additional info about the format + ("3D" or "DASH video") * width Width of the video, if known * height Height of the video, if known + * abr Average audio bitrate in KBit/s + * acodec Name of the audio codec in use + * vbr Average video bitrate in KBit/s + * vcodec Name of the video codec in use + * filesize The number of bytes, if known in advance + webpage_url: The url to the video webpage, if given to youtube-dl it + should allow to get the same result again. (It will be set + by YoutubeDL if it's missing) Unless mentioned otherwise, the fields should be Unicode strings. @@ -144,7 +158,7 @@ class InfoExtractor(object): elif note is not False: self.to_screen(u'%s: %s' % (video_id, note)) try: - return compat_urllib_request.urlopen(url_or_request) + return self._downloader.urlopen(url_or_request) except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err: if errnote is None: errnote = u'Unable to download webpage' @@ -178,6 +192,17 @@ class InfoExtractor(object): self.to_screen(u'Dumping request to ' + url) dump = base64.b64encode(webpage_bytes).decode('ascii') self._downloader.to_screen(dump) + if self._downloader.params.get('write_pages', False): + try: + url = url_or_request.get_full_url() + except AttributeError: + url = url_or_request + raw_filename = ('%s_%s.dump' % (video_id, url)) + filename = sanitize_filename(raw_filename, restricted=True) + self.to_screen(u'Saving request to ' + filename) + with open(filename, 'wb') as outf: + outf.write(webpage_bytes) + content = webpage_bytes.decode(encoding, 'replace') return (content, urlh) @@ -185,6 +210,11 @@ class InfoExtractor(object): """ Returns the data of the page as a string """ return self._download_webpage_handle(url_or_request, video_id, note, errnote)[0] + def _download_xml(self, url_or_request, video_id, note=u'Downloading XML', errnote=u'Unable to downloand XML'): + """Return the xml as an xml.etree.ElementTree.Element""" + xml_string = self._download_webpage(url_or_request, video_id, note, errnote) + return xml.etree.ElementTree.fromstring(xml_string.encode('utf-8')) + def to_screen(self, msg): """Print msg to screen, prefixing it with '[ie_name]'""" self._downloader.to_screen(u'[%s] %s' % (self.IE_NAME, msg)) @@ -206,12 +236,14 @@ class InfoExtractor(object): self.to_screen(u'Logging in') #Methods for following #608 - def url_result(self, url, ie=None): + def url_result(self, url, ie=None, video_id=None): """Returns a url that points to a page that should be processed""" #TODO: ie should be the class used for getting the info video_info = {'_type': 'url', 'url': url, 'ie_key': ie} + if video_id is not None: + video_info['id'] = video_id return video_info def playlist_result(self, entries, playlist_id=None, playlist_title=None): """Returns a playlist""" @@ -228,7 +260,7 @@ class InfoExtractor(object): 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. + RegexNotFoundError, depending on fatal, specifying the field name. """ if isinstance(pattern, (str, compat_str, compiled_regex_type)): mobj = re.search(pattern, string, flags) @@ -248,7 +280,7 @@ class InfoExtractor(object): elif default is not None: return default elif fatal: - raise ExtractorError(u'Unable to extract %s' % _name) + raise RegexNotFoundError(u'Unable to extract %s' % _name) else: self._downloader.report_warning(u'unable to extract %s; ' u'please report this issue on http://yt-dl.org/bug' % _name) @@ -296,13 +328,21 @@ class InfoExtractor(object): # Helper functions for extracting OpenGraph info @staticmethod - def _og_regex(prop): - return r'<meta.+?property=[\'"]og:%s[\'"].+?content=(?:"(.+?)"|\'(.+?)\')' % re.escape(prop) + def _og_regexes(prop): + content_re = r'content=(?:"([^>]+?)"|\'(.+?)\')' + property_re = r'property=[\'"]og:%s[\'"]' % re.escape(prop) + template = r'<meta[^>]+?%s[^>]+?%s' + return [ + template % (property_re, content_re), + template % (content_re, property_re), + ] 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) + escaped = self._search_regex(self._og_regexes(prop), html, name, flags=re.DOTALL, **kargs) + if escaped is None: + return None return unescapeHTML(escaped) def _og_search_thumbnail(self, html, **kargs): @@ -314,10 +354,21 @@ class InfoExtractor(object): 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) + def _og_search_video_url(self, html, name='video url', secure=True, **kargs): + regexes = self._og_regexes('video') + if secure: regexes = self._og_regexes('video:secure_url') + regexes + return self._html_search_regex(regexes, html, name, **kargs) + + def _html_search_meta(self, name, html, display_name=None): + if display_name is None: + display_name = name + return self._html_search_regex( + r'''(?ix)<meta(?=[^>]+(?:name|property)=["\']%s["\']) + [^>]+content=["\']([^"\']+)["\']''' % re.escape(name), + html, display_name, fatal=False) + + def _dc_search_uploader(self, html): + return self._html_search_meta('dc.creator', html, 'uploader') def _rta_search(self, html): # See http://www.rtalabel.org/index.php?content=howtofaq#single @@ -327,6 +378,23 @@ class InfoExtractor(object): return 18 return 0 + def _media_rating_search(self, html): + # See http://www.tjg-designs.com/WP/metadata-code-examples-adding-metadata-to-your-web-pages/ + rating = self._html_search_meta('rating', html) + + if not rating: + return None + + RATING_TABLE = { + 'safe for kids': 0, + 'general': 8, + '14 years': 14, + 'mature': 17, + 'restricted': 19, + } + return RATING_TABLE.get(rating.lower(), None) + + class SearchInfoExtractor(InfoExtractor): """ |