import json
import netrc
import os
+import random
import re
import socket
import sys
ExtractorError,
fix_xml_ampersands,
float_or_none,
+ GeoRestrictedError,
+ GeoUtils,
int_or_none,
js_to_json,
parse_iso8601,
_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. (experimental)
+
+ _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. (experimental)
+
+ NB: both these geo attributes are experimental and may change in future
+ or be completely removed.
+
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
_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
def initialize(self):
"""Initializes an instance (authentication, etc)."""
+ self._initialize_geo_bypass(self._GEO_COUNTRIES)
if not self._ready:
self._real_initialize()
self._ready = True
+ def _initialize_geo_bypass(self, countries):
+ """
+ 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.
+
+ You may also manually call it from extractor's code if geo countries
+ information is not available beforehand (e.g. obtained during
+ extraction) or due to some another reason.
+ """
+ if not self._x_forwarded_for_ip:
+ country_code = self._downloader.params.get('geo_bypass_country', None)
+ # If there is no explicit country for geo bypass specified and
+ # the extractor is known to be geo restricted let's fake IP
+ # as X-Forwarded-For right away.
+ if (not country_code and
+ self._GEO_BYPASS and
+ self._downloader.params.get('geo_bypass', True) and
+ countries):
+ country_code = random.choice(countries)
+ if country_code:
+ self._x_forwarded_for_ip = GeoUtils.random_ipv4(country_code)
+ if self._downloader.params.get('verbose', False):
+ self._downloader.to_stdout(
+ '[debug] Using fake IP %s (%s) as X-Forwarded-For.'
+ % (self._x_forwarded_for_ip, country_code.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:
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
if isinstance(url_or_request, (compat_str, str)):
url_or_request = url_or_request.partition('#')[0]
+ # 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
+
urlh = self._request_webpage(url_or_request, video_id, note, errnote, fatal, data=data, headers=headers, query=query)
if urlh is False:
assert not fatal
expected=True)
@staticmethod
- def raise_geo_restricted(msg='This video is not available from your location due to geo restriction'):
- raise ExtractorError(
- '%s. You might want to use --proxy to workaround.' % msg,
- expected=True)
+ def raise_geo_restricted(msg='This video is not available from your location due to geo restriction', countries=None):
+ raise GeoRestrictedError(msg, countries=countries)
# Methods for following #608
@staticmethod
projects / youtube-dl / blobdiff