Use UTC instead of local timezone (#650)

server/lobbyconnection.py

@@ -68,14 +68,16 @@ def message(self):
                 f"{self.ban_reason}")
 
     def _ban_duration_text(self):
-        ban_duration = self.ban_expiry - datetime.now()
+        ban_duration = self.ban_expiry - datetime.utcnow()
         if ban_duration.days > 365 * 100:
             return "forever"
-        humanized_ban_duration = humanize.precisedelta(ban_duration, minimum_unit="hours")
+        humanized_ban_duration = humanize.precisedelta(
+            ban_duration,
+            minimum_unit="hours"
+        )
         return f"for {humanized_ban_duration}"
 
 
-
 class AuthenticationError(Exception):
     def __init__(self, message, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -413,7 +415,7 @@ async def check_user_login(self, conn, username, password):
             metrics.user_logins.labels("failure").inc()
             raise AuthenticationError(auth_error_message)
 
-        now = datetime.now()
+        now = datetime.utcnow()
         if ban_reason is not None and now < ban_expiry:
             self._logger.debug('Rejected login from banned user: %s, %s, %s',
                                player_id, username, self.session)
@@ -1093,7 +1095,7 @@ async def nop(*args, **kwargs):
 
     async def abort_connection_if_banned(self):
         async with self._db.acquire() as conn:
-            now = datetime.now()
+            now = datetime.utcnow()
             result = await conn.execute(
                 select([lobby_ban.c.reason, lobby_ban.c.expires_at])
                 .where(lobby_ban.c.idUser == self.player.id)

tests/unit_tests/test_lobbyconnection.py

@@ -1,10 +1,10 @@
+import re
 from hashlib import sha256
 from unittest import mock
 from unittest.mock import Mock
 
 import asynctest
 import pytest
-import re
 from aiohttp import web
 from asynctest import CoroutineMock
 from sqlalchemy import and_, select
@@ -956,21 +956,31 @@ async def test_abort_connection_if_banned(
     lobbyconnection: LobbyConnection,
     mock_nts_client
 ):
-    lobbyconnection.player.id = 1 # test user that has never been banned
+    # test user that has never been banned
+    lobbyconnection.player.id = 1
     await lobbyconnection.abort_connection_if_banned()
 
-    lobbyconnection.player.id = 201 # test user whose ban has been revoked
+    # test user whose ban has been revoked
+    lobbyconnection.player.id = 201
     await lobbyconnection.abort_connection_if_banned()
 
-    lobbyconnection.player.id = 202 # test user whose ban has expired
+    # test user whose ban has expired
+    lobbyconnection.player.id = 202
     await lobbyconnection.abort_connection_if_banned()
 
-    lobbyconnection.player.id = 203 # test user who is permabanned
+    # test user who is permabanned
+    lobbyconnection.player.id = 203
     with pytest.raises(BanError) as banned_error:
         await lobbyconnection.abort_connection_if_banned()
-    assert banned_error.value.message() == "You are banned from FAF forever. <br>Reason : <br>Test permanent ban"
+    assert banned_error.value.message() == \
+        "You are banned from FAF forever. <br>Reason : <br>Test permanent ban"
 
-    lobbyconnection.player.id = 204 # test user who is banned for another 46 hours
+    # test user who is banned for another 46 hours
+    lobbyconnection.player.id = 204
     with pytest.raises(BanError) as banned_error:
         await lobbyconnection.abort_connection_if_banned()
-    assert re.match(r"You are banned from FAF for 1 day and 2[0-3]\.[0-9]+ hours. <br>Reason : <br>Test ongoing ban with 46 hours left", banned_error.value.message())
+    assert re.match(
+        r"You are banned from FAF for 1 day and 2[12]\.[0-9]+ hours. <br>"
+        "Reason : <br>Test ongoing ban with 46 hours left",
+        banned_error.value.message()
+    )