add login

src/ez_lan_manager/services/UserService.py

@@ -16,9 +16,12 @@ class UserService:
     def __init__(self, db_service: DatabaseService) -> None:
         self._db_service = db_service
 
-    def get_user(self, accessor: Union[str, int]) -> Optional[User]:
+    def get_user(self, accessor: Optional[Union[str, int]]) -> Optional[User]:
+        if accessor is None:
+            return
         if isinstance(accessor, int):
             return self._db_service.get_user_by_id(accessor)
+        accessor = accessor.lower()
         if "@" in accessor:
             return self._db_service.get_user_by_mail(accessor)
         return self._db_service.get_user_by_name(accessor)
@@ -34,6 +37,8 @@ class UserService:
         if disallowed_char:
             raise NameNotAllowedError(disallowed_char)
 
+        user_name = user_name.lower()
+
         hashed_pw = sha256(password_clear_text.encode(encoding="utf-8")).hexdigest()
         return self._db_service.create_user(user_name, user_mail, hashed_pw)
 
@@ -41,6 +46,7 @@ class UserService:
         disallowed_char = self._check_for_disallowed_char(user.user_name)
         if disallowed_char:
             raise NameNotAllowedError(disallowed_char)
+        user.user_name = user.user_name.lower()
         return self._db_service.update_user(user)
 
     def is_login_valid(self, user_name_or_mail: str, password_clear_text: str) -> bool: