Check bans on token login

server/lobbyconnection.py

@@ -516,16 +516,37 @@ async def command_auth(self, message):
 
         async with self._db.acquire() as conn:
             result = await conn.execute(
-                select(t_login.c.login)
+                select(
+                    t_login.c.login,
+                    lobby_ban.c.reason,
+                    lobby_ban.c.expires_at
+                )
+                .select_from(t_login.outerjoin(lobby_ban))
                 .where(t_login.c.id == player_id)
+                .order_by(lobby_ban.c.expires_at.desc())
             )
             row = result.fetchone()
 
             if not row:
-                self._logger.warning("User id not found in database possible fraudulent token: %s", player_id)
+                self._logger.warning(
+                    "User id %s not found in database! Possible fraudulent "
+                    "token: %s",
+                    player_id,
+                    token
+                )
                 raise AuthenticationError("Cannot find user id", auth_method)
 
             username = row.login
+            ban_reason = row.reason
+            ban_expiry = row.expires_at
+
+            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
+                )
+                raise BanError(ban_expiry, ban_reason)
 
         # DEPRECATED: IRC passwords are handled outside of the lobby server.
         # This message remains here for backwards compatibility, but the data

tests/integration_tests/test_login.py

@@ -47,6 +47,41 @@ async def test_server_ban(lobby_server, user):
     }
 
 
+@pytest.mark.parametrize("user", [
+    ("Dostya", 2),
+    ("ban_long_time", 203)
+])
+async def test_server_ban_token(lobby_server, user, jwk_priv_key, jwk_kid):
+    user_name, id = user
+    proto = await connect_client(lobby_server)
+    await proto.send_message({
+        "command": "auth",
+        "version": "1.0.0-dev",
+        "user_agent": "faf-client",
+        "token": jwt.encode({
+            "sub": id,
+            "user_name": user_name,
+            "scp": ["lobby"],
+            "exp": int(time() + 1000),
+            "authorities": [],
+            "non_locked": True,
+            "jti": "",
+            "client_id": ""
+        }, jwk_priv_key, algorithm="RS256", headers={"kid": jwk_kid}),
+        "unique_id": "some_id"
+    })
+    msg = await proto.read_message()
+    assert msg == {
+        "command": "notice",
+        "style": "error",
+        "text": (
+            "You are banned from FAF forever. <br>Reason: <br>Test permanent ban"
+            "<br><i>If you would like to appeal this ban, please send an email "
+            "to: [email protected]</i>"
+        )
+    }
+
+
 @pytest.mark.parametrize("user", ["ban_revoked", "ban_expired"])
 async def test_server_ban_revoked_or_expired(lobby_server, user):
     proto = await connect_client(lobby_server)