Reverting strange changes

homeassistant/auth/permissions/util.py

@@ -1,67 +1,16 @@
 """Helpers to deal with permissions."""
 from functools import wraps
 
-from typing import (
-    TYPE_CHECKING, Callable, Dict, List, Optional, Union, cast)  # noqa: F401
+from typing import Callable, Dict, List, Optional, Union, cast  # noqa: F401
 
-from homeassistant.exceptions import Unauthorized, UnknownUser
-
-from .const import POLICY_CONTROL
 from .models import PermissionLookup
 from .types import CategoryType, SubCategoryDict, ValueType
 
-if TYPE_CHECKING:
-    from homeassistant.core import HomeAssistant, Service, ServiceCall  # noqa
-
 LookupFunc = Callable[[PermissionLookup, SubCategoryDict, str],
                       Optional[ValueType]]
 SubCatLookupType = Dict[str, LookupFunc]
 
 
-def authorized_service_call(hass: 'HomeAssistant', domain: str) -> Callable:
-    """Ensure user of a config entry-enabled service call has permission."""
-    def decorator(service: 'Service') -> Callable:
-        """Decorate."""
-        @wraps(service)
-        async def check_permissions(call: 'ServiceCall') -> None:
-            """Check user permission and raise before call if unauthorized."""
-            if not call.context.user_id:
-                return
-
-            user = await hass.auth.async_get_user(call.context.user_id)
-            if user is None:
-                raise UnknownUser(
-                    context=call.context,
-                    permission=POLICY_CONTROL
-                )
-
-            # If the user passes one or more entity IDs, check permissions
-            # there; otherwise, check permissions against entities registered
-            # to the domain:
-            if call.data.get('entity_id'):
-                if isinstance(call.data['entity'], str):
-                    entities = [call.data['entity_id']]
-                else:
-                    entities = call.data['entity_id']
-            else:
-                reg = await hass.helpers.entity_registry.async_get_registry()
-                entities = [
-                    entity.entity_id for entity in reg.entities.values()
-                    if entity.platform == domain
-                ]
-
-            for entity_id in entities:
-                if user.permissions.check_entity(entity_id, POLICY_CONTROL):
-                    return await service(call)
-
-            raise Unauthorized(
-                context=call.context,
-                permission=POLICY_CONTROL,
-            )
-        return check_permissions
-    return decorator
-
-
 def lookup_all(perm_lookup: PermissionLookup, lookup_dict: SubCategoryDict,
                object_id: str) -> ValueType:
     """Look up permission for all."""