[nrk] Improve geo restriction detection and use geo bypass mechanism

youtube_dl/extractor/nrk.py

@@ -1,7 +1,6 @@
 # coding: utf-8
 from __future__ import unicode_literals
 
-import random
 import re
 
 from .common import InfoExtractor
@@ -15,25 +14,6 @@ from ..utils import (
 
 
 class NRKBaseIE(InfoExtractor):
-    _faked_ip = None
-
-    def _download_webpage_handle(self, *args, **kwargs):
-        # NRK checks X-Forwarded-For HTTP header in order to figure out the
-        # origin of the client behind proxy. This allows to bypass geo
-        # restriction by faking this header's value to some Norway IP.
-        # We will do so once we encounter any geo restriction error.
-        if self._faked_ip:
-            # NB: str is intentional
-            kwargs.setdefault(str('headers'), {})['X-Forwarded-For'] = self._faked_ip
-        return super(NRKBaseIE, self)._download_webpage_handle(*args, **kwargs)
-
-    def _fake_ip(self):
-        # Use fake IP from 37.191.128.0/17 in order to workaround geo
-        # restriction
-        def octet(lb=0, ub=255):
-            return random.randint(lb, ub)
-        self._faked_ip = '37.191.%d.%d' % (octet(128), octet())
-
     def _real_extract(self, url):
         video_id = self._match_id(url)
 
@@ -44,8 +24,6 @@ class NRKBaseIE(InfoExtractor):
         title = data.get('fullTitle') or data.get('mainTitle') or data['title']
         video_id = data.get('id') or video_id
 
-        http_headers = {'X-Forwarded-For': self._faked_ip} if self._faked_ip else {}
-
         entries = []
 
         conviva = data.get('convivaStatistics') or {}
@@ -90,7 +68,6 @@ class NRKBaseIE(InfoExtractor):
                     'duration': duration,
                     'subtitles': subtitles,
                     'formats': formats,
-                    'http_headers': http_headers,
                 })
 
         if not entries:
@@ -107,19 +84,16 @@ class NRKBaseIE(InfoExtractor):
                 }]
 
         if not entries:
-            message_type = data.get('messageType', '')
-            # Can be ProgramIsGeoBlocked or ChannelIsGeoBlocked*
-            if 'IsGeoBlocked' in message_type and not self._faked_ip:
-                self.report_warning(
-                    'Video is geo restricted, trying to fake IP')
-                self._fake_ip()
-                return self._real_extract(url)
-
             MESSAGES = {
                 'ProgramRightsAreNotReady': 'Du kan dessverre ikke se eller høre programmet',
                 'ProgramRightsHasExpired': 'Programmet har gått ut',
                 'ProgramIsGeoBlocked': 'NRK har ikke rettigheter til å vise dette programmet utenfor Norge',
             }
+            message_type = data.get('messageType', '')
+            # Can be ProgramIsGeoBlocked or ChannelIsGeoBlocked*
+            if 'IsGeoBlocked' in message_type:
+                self.raise_geo_restricted(
+                    msg=MESSAGES.get('ProgramIsGeoBlocked'), countries=['NO'])
             raise ExtractorError(
                 '%s said: %s' % (self.IE_NAME, MESSAGES.get(
                     message_type, message_type)),