clean_html,
compiled_regex_type,
ExtractorError,
+ RegexNotFoundError,
+ sanitize_filename,
+ unescapeHTML,
)
class InfoExtractor(object):
title: Video title, unescaped.
ext: Video filename extension.
+ Instead of url and ext, formats can also specified.
+
The following fields are optional:
format: The video format, defaults to ext (used for --get-format)
+ thumbnails: A list of dictionaries (with the entries "resolution" and
+ "url") for the varying thumbnails
thumbnail: Full URL to a video thumbnail image.
description: One-line video description.
uploader: Full name of the video uploader.
uploader_id: Nickname or id of the video uploader.
location: Physical location of the video.
player_url: SWF Player URL (used for rtmpdump).
- subtitles: The subtitle file contents.
+ subtitles: The subtitle file contents as a dictionary in the format
+ {language: subtitles}.
view_count: How many users have watched the video on the platform.
urlhandle: [internal] The urlHandle to be used to download the file,
like returned by urllib.request.urlopen
-
- The fields should all be Unicode strings.
+ age_limit: Age restriction for the video, as an integer (years)
+ formats: A list of dictionaries for each format available, it must
+ be ordered from worst to best quality. Potential fields:
+ * url Mandatory. The URL of the video file
+ * ext Will be calculated from url if missing
+ * format A human-readable description of the format
+ ("mp4 container with h264/opus").
+ 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
+
+ Unless mentioned otherwise, the fields should be Unicode strings.
Subclasses of this one should re-define the _real_initialize() and
_real_extract() methods and define a _VALID_URL regexp.
@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):
"""Real extraction process. Redefine in subclasses."""
pass
+ @classmethod
+ def ie_key(cls):
+ """A string for getting the InfoExtractor with get_info_extractor"""
+ return cls.__name__[:-2]
+
@property
def IE_NAME(self):
return type(self).__name__[:-2]
except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
if errnote is None:
errnote = u'Unable to download webpage'
- raise ExtractorError(u'%s: %s' % (errnote, compat_str(err)), sys.exc_info()[2])
+ raise ExtractorError(u'%s: %s' % (errnote, compat_str(err)), sys.exc_info()[2], cause=err)
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', '')
+ webpage_bytes = urlh.read()
m = re.match(r'[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+\s*;\s*charset=(.+)', content_type)
if m:
encoding = m.group(1)
else:
- encoding = 'utf-8'
- webpage_bytes = urlh.read()
+ m = re.search(br'<meta[^>]+charset=[\'"]?([^\'")]+)[ /\'">]',
+ webpage_bytes[:1024])
+ if m:
+ encoding = m.group(1).decode('ascii')
+ else:
+ encoding = 'utf-8'
if self._downloader.params.get('dump_intermediate_pages', False):
try:
url = url_or_request.get_full_url()
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)
self.to_screen(u'Logging in')
#Methods for following #608
- #They set the correct value of the '_type' key
- def video_result(self, video_info):
- """Returns a video"""
- video_info['_type'] = 'video'
- return video_info
def url_result(self, url, ie=None):
"""Returns a url that points to a page that should be processed"""
#TODO: ie should be the class used for getting the info
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)
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)
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', secure=True, **kargs):
+ regexes = [self._og_regex('video')]
+ if secure: regexes.insert(0, self._og_regex('video:secure_url'))
+ return self._html_search_regex(regexes, html, name, **kargs)
+
+ def _rta_search(self, html):
+ # See http://www.rtalabel.org/index.php?content=howtofaq#single
+ if re.search(r'(?ix)<meta\s+name="rating"\s+'
+ r' content="RTA-5042-1996-1400-1577-RTA"',
+ html):
+ return 18
+ return 0
+
+
class SearchInfoExtractor(InfoExtractor):
"""
Base class for paged search queries extractors.
def _get_n_results(self, query, n):
"""Get a specified number of results for a query"""
- raise NotImplementedError("This method must be implemented by sublclasses")
+ raise NotImplementedError("This method must be implemented by subclasses")
@property
def SEARCH_KEY(self):
projects / youtube-dl / blobdiff