X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/575f75429e2e479957d006a26940f4a5a51347ce..4d073ced87f1fff7fd6fdfd82462444769b9f90b:/youtube_dl/extractor/common.py?ds=inline diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py index 0b4e2ac..a2548db 100644 --- a/youtube_dl/extractor/common.py +++ b/youtube_dl/extractor/common.py @@ -1,3 +1,4 @@ +# coding: utf-8 from __future__ import unicode_literals import base64 @@ -6,6 +7,7 @@ import hashlib import json import netrc import os +import random import re import socket import sys @@ -25,8 +27,12 @@ from ..compat import ( compat_urllib_parse_urlencode, compat_urllib_request, compat_urlparse, + compat_xml_parse_error, +) +from ..downloader.f4m import ( + get_base_url, + remove_encrypted_media, ) -from ..downloader.f4m import remove_encrypted_media from ..utils import ( NO_DEFAULT, age_restricted, @@ -35,31 +41,35 @@ from ..utils import ( clean_html, compiled_regex_type, determine_ext, + determine_protocol, error_to_compat_str, ExtractorError, + extract_attributes, fix_xml_ampersands, float_or_none, + GeoRestrictedError, + GeoUtils, int_or_none, + js_to_json, + mimetype2ext, + orderedSet, + parse_codecs, + parse_duration, parse_iso8601, + parse_m3u8_attributes, RegexNotFoundError, - sanitize_filename, sanitized_Request, + sanitize_filename, unescapeHTML, unified_strdate, unified_timestamp, + update_Request, + update_url_query, + urljoin, url_basename, xpath_element, xpath_text, xpath_with_ns, - determine_protocol, - parse_duration, - mimetype2ext, - update_Request, - update_url_query, - parse_m3u8_attributes, - extract_attributes, - parse_codecs, - urljoin, ) @@ -164,6 +174,8 @@ class InfoExtractor(object): width : height ratio as float. * no_resume The server does not support resuming the (HTTP or RTMP) download. Boolean. + * downloader_options A dictionary of downloader options as + described in FileDownloader url: Final video URL. ext: Video filename extension. @@ -239,6 +251,10 @@ class InfoExtractor(object): specified in the URL. end_time: Time in seconds where the reproduction should end, as specified in the URL. + chapters: A list of dictionaries, with the following entries: + * "start_time" - The start time of the chapter in seconds + * "end_time" - The end time of the chapter in seconds + * "title" (optional, string) The following fields should only be used when the video belongs to some logical chapter or section: @@ -287,8 +303,9 @@ class InfoExtractor(object): There must be a key "entries", which is a list, an iterable, or a PagedList object, each element of which is a valid dictionary by this specification. - Additionally, playlists can have "title", "description" and "id" attributes - with the same semantics as videos (see above). + Additionally, playlists can have "id", "title", "description", "uploader", + "uploader_id", "uploader_url" attributes with the same semantics as videos + (see above). _type "multi_video" indicates that there are multiple videos that @@ -319,17 +336,37 @@ class InfoExtractor(object): _real_extract() methods and define a _VALID_URL regexp. Probably, they should also be added to the list of extractors. + _GEO_BYPASS attribute may be set to False in order to disable + geo restriction bypass mechanisms for a particular extractor. + Though it won't disable explicit geo restriction bypass based on + country code provided with geo_bypass_country. + + _GEO_COUNTRIES attribute may contain a list of presumably geo unrestricted + countries for this extractor. One of these countries will be used by + geo restriction bypass mechanism right away in order to bypass + geo restriction, of course, if the mechanism is not disabled. + + _GEO_IP_BLOCKS attribute may contain a list of presumably geo unrestricted + IP blocks in CIDR notation for this extractor. One of these IP blocks + will be used by geo restriction bypass mechanism similarly + to _GEO_COUNTRIES. + Finally, the _WORKING attribute should be set to False for broken IEs in order to warn the users and skip the tests. """ _ready = False _downloader = None + _x_forwarded_for_ip = None + _GEO_BYPASS = True + _GEO_COUNTRIES = None + _GEO_IP_BLOCKS = None _WORKING = True def __init__(self, downloader=None): """Constructor. Receives an optional downloader.""" self._ready = False + self._x_forwarded_for_ip = None self.set_downloader(downloader) @classmethod @@ -349,7 +386,7 @@ class InfoExtractor(object): cls._VALID_URL_RE = re.compile(cls._VALID_URL) m = cls._VALID_URL_RE.match(url) assert m - return m.group('id') + return compat_str(m.group('id')) @classmethod def working(cls): @@ -358,15 +395,116 @@ class InfoExtractor(object): def initialize(self): """Initializes an instance (authentication, etc).""" + self._initialize_geo_bypass({ + 'countries': self._GEO_COUNTRIES, + 'ip_blocks': self._GEO_IP_BLOCKS, + }) if not self._ready: self._real_initialize() self._ready = True + def _initialize_geo_bypass(self, geo_bypass_context): + """ + Initialize geo restriction bypass mechanism. + + This method is used to initialize geo bypass mechanism based on faking + X-Forwarded-For HTTP header. A random country from provided country list + is selected and a random IP belonging to this country is generated. This + IP will be passed as X-Forwarded-For HTTP header in all subsequent + HTTP requests. + + This method will be used for initial geo bypass mechanism initialization + during the instance initialization with _GEO_COUNTRIES and + _GEO_IP_BLOCKS. + + You may also manually call it from extractor's code if geo bypass + information is not available beforehand (e.g. obtained during + extraction) or due to some other reason. In this case you should pass + this information in geo bypass context passed as first argument. It may + contain following fields: + + countries: List of geo unrestricted countries (similar + to _GEO_COUNTRIES) + ip_blocks: List of geo unrestricted IP blocks in CIDR notation + (similar to _GEO_IP_BLOCKS) + + """ + if not self._x_forwarded_for_ip: + + # Geo bypass mechanism is explicitly disabled by user + if not self._downloader.params.get('geo_bypass', True): + return + + if not geo_bypass_context: + geo_bypass_context = {} + + # Backward compatibility: previously _initialize_geo_bypass + # expected a list of countries, some 3rd party code may still use + # it this way + if isinstance(geo_bypass_context, (list, tuple)): + geo_bypass_context = { + 'countries': geo_bypass_context, + } + + # The whole point of geo bypass mechanism is to fake IP + # as X-Forwarded-For HTTP header based on some IP block or + # country code. + + # Path 1: bypassing based on IP block in CIDR notation + + # Explicit IP block specified by user, use it right away + # regardless of whether extractor is geo bypassable or not + ip_block = self._downloader.params.get('geo_bypass_ip_block', None) + + # Otherwise use random IP block from geo bypass context but only + # if extractor is known as geo bypassable + if not ip_block: + ip_blocks = geo_bypass_context.get('ip_blocks') + if self._GEO_BYPASS and ip_blocks: + ip_block = random.choice(ip_blocks) + + if ip_block: + self._x_forwarded_for_ip = GeoUtils.random_ipv4(ip_block) + if self._downloader.params.get('verbose', False): + self._downloader.to_screen( + '[debug] Using fake IP %s as X-Forwarded-For.' + % self._x_forwarded_for_ip) + return + + # Path 2: bypassing based on country code + + # Explicit country code specified by user, use it right away + # regardless of whether extractor is geo bypassable or not + country = self._downloader.params.get('geo_bypass_country', None) + + # Otherwise use random country code from geo bypass context but + # only if extractor is known as geo bypassable + if not country: + countries = geo_bypass_context.get('countries') + if self._GEO_BYPASS and countries: + country = random.choice(countries) + + if country: + self._x_forwarded_for_ip = GeoUtils.random_ipv4(country) + if self._downloader.params.get('verbose', False): + self._downloader.to_screen( + '[debug] Using fake IP %s (%s) as X-Forwarded-For.' + % (self._x_forwarded_for_ip, country.upper())) + def extract(self, url): """Extracts URL information and returns it in list of dicts.""" try: - self.initialize() - return self._real_extract(url) + for _ in range(2): + try: + self.initialize() + ie_result = self._real_extract(url) + if self._x_forwarded_for_ip: + ie_result['__x_forwarded_for_ip'] = self._x_forwarded_for_ip + return ie_result + except GeoRestrictedError as e: + if self.__maybe_fake_ip_and_retry(e.countries): + continue + raise except ExtractorError: raise except compat_http_client.IncompleteRead as e: @@ -374,6 +512,21 @@ class InfoExtractor(object): except (KeyError, StopIteration) as e: raise ExtractorError('An extractor error has occurred.', cause=e) + def __maybe_fake_ip_and_retry(self, countries): + if (not self._downloader.params.get('geo_bypass_country', None) and + self._GEO_BYPASS and + self._downloader.params.get('geo_bypass', True) and + not self._x_forwarded_for_ip and + countries): + country_code = random.choice(countries) + self._x_forwarded_for_ip = GeoUtils.random_ipv4(country_code) + if self._x_forwarded_for_ip: + self.report_warning( + 'Video is geo restricted. Retrying extraction with fake IP %s (%s) as X-Forwarded-For.' + % (self._x_forwarded_for_ip, country_code.upper())) + return True + return False + def set_downloader(self, downloader): """Sets the downloader for this IE.""" self._downloader = downloader @@ -404,6 +557,16 @@ class InfoExtractor(object): self.to_screen('%s' % (note,)) else: self.to_screen('%s: %s' % (video_id, note)) + + # Some sites check X-Forwarded-For HTTP header in order to figure out + # the origin of the client behind proxy. This allows bypassing geo + # restriction by faking this header's value to IP that belongs to some + # geo unrestricted country. We will do so once we encounter any + # geo restriction error. + if self._x_forwarded_for_ip: + if 'X-Forwarded-For' not in headers: + headers['X-Forwarded-For'] = self._x_forwarded_for_ip + if isinstance(url_or_request, compat_urllib_request.Request): url_or_request = update_Request( url_or_request, data=data, headers=headers, query=query) @@ -457,6 +620,34 @@ class InfoExtractor(object): return encoding + def __check_blocked(self, content): + first_block = content[:512] + if ('Access to this site is blocked' in content and + 'Websense' in first_block): + msg = 'Access to this webpage has been blocked by Websense filtering software in your network.' + blocked_iframe = self._html_search_regex( + r'