[ie/niconico] support login for niconico live

yt_dlp/extractor/niconico.py

@@ -32,12 +32,56 @@ from ..utils import (
 )
 
 
-class NiconicoIE(InfoExtractor):
-    IE_NAME = 'niconico'
-    IE_DESC = 'ニコニコ動画'
+class NiconicoBaseIE(InfoExtractor):
+    _NETRC_MACHINE = 'niconico'
     _GEO_COUNTRIES = ['JP']
     _GEO_BYPASS = False
 
+    def _perform_login(self, username, password):
+        login_ok = True
+        login_form_strs = {
+            'mail_tel': username,
+            'password': password,
+        }
+        self._request_webpage(
+            'https://account.nicovideo.jp/login', None,
+            note='Acquiring Login session')
+        page = self._download_webpage(
+            'https://account.nicovideo.jp/login/redirector?show_button_twitter=1&site=niconico&show_button_facebook=1', None,
+            note='Logging in', errnote='Unable to log in',
+            data=urlencode_postdata(login_form_strs),
+            headers={
+                'Referer': 'https://account.nicovideo.jp/login',
+                'Content-Type': 'application/x-www-form-urlencoded',
+            })
+        if 'oneTimePw' in page:
+            post_url = self._search_regex(
+                r'<form[^>]+action=(["\'])(?P<url>.+?)\1', page, 'post url', group='url')
+            page = self._download_webpage(
+                urljoin('https://account.nicovideo.jp', post_url), None,
+                note='Performing MFA', errnote='Unable to complete MFA',
+                data=urlencode_postdata({
+                    'otp': self._get_tfa_info('6 digits code')
+                }), headers={
+                    'Content-Type': 'application/x-www-form-urlencoded',
+                })
+            if 'oneTimePw' in page or 'formError' in page:
+                err_msg = self._html_search_regex(
+                    r'formError["\']+>(.*?)</div>', page, 'form_error',
+                    default='There\'s an error but the message can\'t be parsed.',
+                    flags=re.DOTALL)
+                self.report_warning(f'Unable to log in: MFA challenge failed, "{err_msg}"')
+                return False
+        login_ok = 'class="notice error"' not in page
+        if not login_ok:
+            self.report_warning('Unable to log in: bad username or password')
+        return login_ok
+
+
+class NiconicoIE(NiconicoBaseIE):
+    IE_NAME = 'niconico'
+    IE_DESC = 'ニコニコ動画'
+
     _TESTS = [{
         'url': 'http://www.nicovideo.jp/watch/sm22312215',
         'md5': 'd1a75c0823e2f629128c43e1212760f9',
@@ -180,7 +224,6 @@ class NiconicoIE(InfoExtractor):
     }]
 
     _VALID_URL = r'https?://(?:(?:www\.|secure\.|sp\.)?nicovideo\.jp/watch|nico\.ms)/(?P<id>(?:[a-z]{2})?[0-9]+)'
-    _NETRC_MACHINE = 'niconico'
     _API_HEADERS = {
         'X-Frontend-ID': '6',
         'X-Frontend-Version': '0',
@@ -189,46 +232,6 @@ class NiconicoIE(InfoExtractor):
         'Origin': 'https://www.nicovideo.jp',
     }
 
-    def _perform_login(self, username, password):
-        login_ok = True
-        login_form_strs = {
-            'mail_tel': username,
-            'password': password,
-        }
-        self._request_webpage(
-            'https://account.nicovideo.jp/login', None,
-            note='Acquiring Login session')
-        page = self._download_webpage(
-            'https://account.nicovideo.jp/login/redirector?show_button_twitter=1&site=niconico&show_button_facebook=1', None,
-            note='Logging in', errnote='Unable to log in',
-            data=urlencode_postdata(login_form_strs),
-            headers={
-                'Referer': 'https://account.nicovideo.jp/login',
-                'Content-Type': 'application/x-www-form-urlencoded',
-            })
-        if 'oneTimePw' in page:
-            post_url = self._search_regex(
-                r'<form[^>]+action=(["\'])(?P<url>.+?)\1', page, 'post url', group='url')
-            page = self._download_webpage(
-                urljoin('https://account.nicovideo.jp', post_url), None,
-                note='Performing MFA', errnote='Unable to complete MFA',
-                data=urlencode_postdata({
-                    'otp': self._get_tfa_info('6 digits code')
-                }), headers={
-                    'Content-Type': 'application/x-www-form-urlencoded',
-                })
-            if 'oneTimePw' in page or 'formError' in page:
-                err_msg = self._html_search_regex(
-                    r'formError["\']+>(.*?)</div>', page, 'form_error',
-                    default='There\'s an error but the message can\'t be parsed.',
-                    flags=re.DOTALL)
-                self.report_warning(f'Unable to log in: MFA challenge failed, "{err_msg}"')
-                return False
-        login_ok = 'class="notice error"' not in page
-        if not login_ok:
-            self.report_warning('Unable to log in: bad username or password')
-        return login_ok
-
     def _get_heartbeat_info(self, info_dict):
         video_id, video_src_id, audio_src_id = info_dict['url'].split(':')[1].split('/')
         dmc_protocol = info_dict['expected_protocol']
@@ -908,11 +911,9 @@ class NiconicoUserIE(InfoExtractor):
         return self.playlist_result(self._entries(list_id), list_id, ie=NiconicoIE.ie_key())
 
 
-class NiconicoLiveIE(InfoExtractor):
+class NiconicoLiveIE(NiconicoBaseIE):
     IE_NAME = 'niconico:live'
     IE_DESC = 'ニコニコ生放送'
-    _GEO_COUNTRIES = ['JP']
-    _GEO_BYPASS = False
     _VALID_URL = r'https?://(?:sp\.)?live2?\.nicovideo\.jp/(?:watch|gate)/(?P<id>lv\d+)'
     _TESTS = [{
         'note': 'this test case includes invisible characters for title, pasting them as-is',