[cleanup] Misc fixes and cleanup

Closes #3780, Closes #3853, Closes #3850

yt_dlp/extractor/common.py

@@ -610,8 +610,7 @@ class InfoExtractor:
 
             if ip_block:
                 self._x_forwarded_for_ip = GeoUtils.random_ipv4(ip_block)
-                self._downloader.write_debug(
-                    '[debug] Using fake IP %s as X-Forwarded-For' % self._x_forwarded_for_ip)
+                self.write_debug(f'Using fake IP {self._x_forwarded_for_ip} as X-Forwarded-For')
                 return
 
             # Path 2: bypassing based on country code

yt_dlp/extractor/curiositystream.py

@@ -27,7 +27,7 @@ class CuriosityStreamBaseIE(InfoExtractor):
             auth_cookie = self._get_cookies('https://curiositystream.com').get('auth_token')
             if auth_cookie:
                 self.write_debug('Obtained auth_token cookie')
-                self._auth_token = cookie.value
+                self._auth_token = auth_cookie.value
         if self._auth_token:
             headers['X-Auth-Token'] = self._auth_token
         result = self._download_json(

yt_dlp/extractor/fc2.py

@@ -1,9 +1,7 @@
 import re
 
 from .common import InfoExtractor
-from ..compat import (
-    compat_parse_qs,
-)
+from ..compat import compat_parse_qs
 from ..dependencies import websockets
 from ..utils import (
     ExtractorError,
@@ -209,7 +207,7 @@ class FC2LiveIE(InfoExtractor):
             'User-Agent': self.get_param('http_headers')['User-Agent'],
         })
 
-        self.write_debug('[debug] Sending HLS server request')
+        self.write_debug('Sending HLS server request')
 
         while True:
             recv = ws.recv()
@@ -231,13 +229,10 @@ class FC2LiveIE(InfoExtractor):
             if not data or not isinstance(data, dict):
                 continue
             if data.get('name') == '_response_' and data.get('id') == 1:
-                self.write_debug('[debug] Goodbye.')
+                self.write_debug('Goodbye')
                 playlist_data = data
                 break
-            elif self._downloader.params.get('verbose', False):
-                if len(recv) > 100:
-                    recv = recv[:100] + '...'
-                self.to_screen('[debug] Server said: %s' % recv)
+            self.write_debug('Server said: %s%s' % (recv[:100], '...' if len(recv) > 100 else ''))
 
         if not playlist_data:
             raise ExtractorError('Unable to fetch HLS playlist info via WebSocket')