Update django.contrib.auth with Django 3.0 compatibility (#256)

* Add support for BaseBackend

* Add User.get_user_permissions

* Add support for UserManager.with_perm

* Add support for reset_url_token

django-stubs/contrib/auth/backends.pyi

@@ -1,7 +1,7 @@
 from typing import Any, Optional, Set, Union
 
 from django.contrib.auth.base_user import AbstractBaseUser
-from django.contrib.auth.models import AnonymousUser, User
+from django.contrib.auth.models import AnonymousUser, User, Permission
 
 from django.db.models.base import Model
 
@@ -9,17 +9,26 @@ _AnyUser = Union[Model, AnonymousUser]
 
 UserModel: Any
 
-class ModelBackend:
+class BaseBackend:
     def authenticate(
         self, request: Any, username: Optional[str] = ..., password: Optional[str] = ..., **kwargs: Any
     ) -> Optional[AbstractBaseUser]: ...
-    def user_can_authenticate(self, user: Optional[_AnyUser]) -> bool: ...
+    def get_user(self, user_id: int) -> Optional[AbstractBaseUser]: ...
     def get_user_permissions(self, user_obj: _AnyUser, obj: Optional[Model] = ...) -> Set[str]: ...
     def get_group_permissions(self, user_obj: _AnyUser, obj: Optional[Model] = ...) -> Set[str]: ...
     def get_all_permissions(self, user_obj: _AnyUser, obj: Optional[Model] = ...) -> Set[str]: ...
     def has_perm(self, user_obj: _AnyUser, perm: str, obj: Optional[Model] = ...) -> bool: ...
+
+class ModelBackend(BaseBackend):
     def has_module_perms(self, user_obj: _AnyUser, app_label: str) -> bool: ...
-    def get_user(self, user_id: int) -> AbstractBaseUser: ...
+    def user_can_authenticate(self, user: Optional[_AnyUser]) -> bool: ...
+    def with_perm(
+        self,
+        perm: Union[str, Permission],
+        is_active: bool = ...,
+        include_superusers: bool = ...,
+        obj: Optional[Model] = ...,
+    ): ...
 
 class AllowAllUsersModelBackend(ModelBackend): ...
 

django-stubs/contrib/auth/models.pyi

@@ -1,5 +1,6 @@
 from typing import Any, Collection, Optional, Set, Tuple, Type, TypeVar, Union
 
+from django.contrib.auth.backends import ModelBackend
 from django.contrib.auth.base_user import AbstractBaseUser as AbstractBaseUser, BaseUserManager as BaseUserManager
 from django.contrib.auth.validators import UnicodeUsernameValidator
 from django.contrib.contenttypes.models import ContentType
@@ -43,11 +44,20 @@ class UserManager(BaseUserManager[_T]):
     def create_superuser(
         self, username: str, email: Optional[str], password: Optional[str], **extra_fields: Any
     ) -> _T: ...
+    def with_perm(
+        self,
+        perm: Union[str, Permission],
+        is_active: bool = ...,
+        include_superusers: bool = ...,
+        backend: Optional[Union[Type[ModelBackend], str]] = ...,
+        obj: Optional[Model] = ...,
+    ): ...
 
 class PermissionsMixin(models.Model):
     is_superuser = models.BooleanField()
     groups = models.ManyToManyField(Group)
     user_permissions = models.ManyToManyField(Permission)
+    def get_user_permissions(self, obj: Optional[_AnyUser] = ...) -> Set[str]: ...
     def get_group_permissions(self, obj: Optional[_AnyUser] = ...) -> Set[str]: ...
     def get_all_permissions(self, obj: Optional[_AnyUser] = ...) -> Set[str]: ...
     def has_perm(self, perm: str, obj: Optional[_AnyUser] = ...) -> bool: ...
@@ -88,6 +98,7 @@ class AnonymousUser:
     def groups(self) -> EmptyManager: ...
     @property
     def user_permissions(self) -> EmptyManager: ...
+    def get_user_permissions(self, obj: Optional[_AnyUser] = ...) -> Set[str]: ...
     def get_group_permissions(self, obj: Optional[_AnyUser] = ...) -> Set[Any]: ...
     def get_all_permissions(self, obj: Optional[_AnyUser] = ...) -> Set[str]: ...
     def has_perm(self, perm: str, obj: Optional[_AnyUser] = ...) -> bool: ...

django-stubs/contrib/auth/views.pyi

@@ -55,6 +55,7 @@ class PasswordResetDoneView(PasswordContextMixin, TemplateView):
 class PasswordResetConfirmView(PasswordContextMixin, FormView):
     post_reset_login: bool = ...
     post_reset_login_backend: Any = ...
+    reset_url_token: str = ...
     title: Any = ...
     token_generator: Any = ...
     validlink: bool = ...