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epicyon
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Code Issues 14 Releases Wiki Activity

Remove browser contradiction check 

The real user agents are themselves contradictory
main
bashrc 2026-04-07 17:35:06 +01:00
parent 832838df57
commit 1c5f050db6
3 changed files with 0 additions and 44 deletions
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9
daemon_get.py
View File

@ -96,7 +96,6 @@ from flags import is_artist
from flags import is_blog_post from flags import is_blog_post
from timeFunctions import date_utcnow from timeFunctions import date_utcnow
from timeFunctions import get_current_time_int from timeFunctions import get_current_time_int
from utils import check_mixed_user_agent
from utils import string_starts_with from utils import string_starts_with
from utils import is_yggdrasil_address from utils import is_yggdrasil_address
from utils import replace_strings from utils import replace_strings
@ -383,14 +382,6 @@ def daemon_http_get(self) -> None:
ua_str = get_user_agent(self) ua_str = get_user_agent(self)
# contradictory browsers within the user agent indicate
# malevolent intent
if check_mixed_user_agent(ua_str):
print('GET HTTP contradictory browsers within user agent ' +
str(self.headers).replace('\n', ' '))
http_400(self)
return
if ua_str: if ua_str:
if 'Epicyon/' in ua_str: if 'Epicyon/' in ua_str:
log_epicyon_instances(self.server.base_dir, ua_str, log_epicyon_instances(self.server.base_dir, ua_str,

9
daemon_post.py
View File

@ -12,7 +12,6 @@ import errno
import json import json
from socket import error as SocketError from socket import error as SocketError
from flags import is_corporate from flags import is_corporate
from utils import check_mixed_user_agent
from utils import string_starts_with from utils import string_starts_with
from utils import is_yggdrasil_address from utils import is_yggdrasil_address
from utils import replace_strings from utils import replace_strings
@ -283,14 +282,6 @@ def daemon_http_post(self) -> None:
ua_str = get_user_agent(self) ua_str = get_user_agent(self)
# contradictory browsers within the user agent indicate
# malevolent intent
if check_mixed_user_agent(ua_str):
print('POST HTTP contradictory browsers within user agent ' +
str(self.headers).replace('\n', ' '))
http_400(self)
return
if ua_str: if ua_str:
if 'Epicyon/' in ua_str: if 'Epicyon/' in ua_str:
log_epicyon_instances(self.server.base_dir, ua_str, log_epicyon_instances(self.server.base_dir, ua_str,

26
utils.py
View File

@ -4104,32 +4104,6 @@ def get_instance_url(calling_domain: str,
return instance_url return instance_url
def check_mixed_user_agent(ua_str: str):
"""Check if there are contradicting browsers within the user agent
"""
if not ua_str:
return False
client_user_agents = ('Mozilla', 'Chrome', 'Safari')
matching_agents = []
for client_ua in client_user_agents:
if client_ua in ua_str:
matching_agents.append(client_ua)
if len(matching_agents) > 1:
if len(matching_agents) == 2:
if matching_agents[0] == 'Mozilla':
# Safari browser oddly starts with Mozilla
# https://www.useragentstring.com/pages/Safari
if matching_agents[1] == 'Safari':
return False
# Chrome browser oddly starts with Mozilla
# https://www.useragentstring.com/pages/Chrome
if matching_agents[1] == 'Chrome':
return False
return True
return False
def check_bad_path(path: str): def check_bad_path(path: str):
"""for http GET or POST check that the path looks valid """for http GET or POST check that the path looks valid
""" """