o
    ÒŸŽi$  ã                   @   s¤   d dl Z d dlmZ d dlmZ d dlmZmZmZ d dl	m
Z
 d dlmZ eƒ ZG dd„ dƒZG d	d
„ d
eƒZG dd„ deƒZG dd„ deƒZG dd„ deƒZdS )é    N)Úget_user_model)Ú
Permission)ÚExistsÚOuterRefÚQ)ÚRemovedInDjango50Warning)Úfunc_supports_parameterc                   @   sD   e Zd Zdd„ Zdd„ Zddd„Zddd	„Zdd
d„Zddd„ZdS )ÚBaseBackendc                 K   ó   d S ©N© )ÚselfÚrequestÚkwargsr   r   úfC:\Users\psant\Downloads\Anu Raj Backend\school\venv\Lib\site-packages\django/contrib/auth/backends.pyÚauthenticate   ó   zBaseBackend.authenticatec                 C   r
   r   r   )r   Úuser_idr   r   r   Úget_user   r   zBaseBackend.get_userNc                 C   ó   t ƒ S r   ©Úset©r   Úuser_objÚobjr   r   r   Úget_user_permissions   ó   z BaseBackend.get_user_permissionsc                 C   r   r   r   r   r   r   r   Úget_group_permissions   r   z!BaseBackend.get_group_permissionsc                 C   s    h | j ||d�£| j||d�£S ©N)r   )r   r   r   r   r   r   Úget_all_permissions   s
   ÿþzBaseBackend.get_all_permissionsc                 C   s   || j ||d�v S r   )r   ©r   r   Úpermr   r   r   r   Úhas_perm   s   zBaseBackend.has_permr   )	Ú__name__Ú
__module__Ú__qualname__r   r   r   r   r   r"   r   r   r   r   r	      s    


r	   c                       sˆ   e Zd ZdZddd„Zdd„ Zdd„ Zd	d
„ Zdd„ Zddd„Z	ddd„Z
d‡ fdd„	Zd‡ fdd„	Zdd„ Zddd„Zdd„ Z‡  ZS )ÚModelBackendz9
    Authenticates against settings.AUTH_USER_MODEL.
    Nc                 K   s|   |d u r
|  tj¡}|d u s|d u rd S ztj |¡}W n tjy-   tƒ  |¡ Y d S w | |¡r:|  |¡r<|S d S d S r   )	ÚgetÚ	UserModelÚUSERNAME_FIELDÚ_default_managerÚget_by_natural_keyÚDoesNotExistÚset_passwordZcheck_passwordÚuser_can_authenticate)r   r   ÚusernameÚpasswordr   Úuserr   r   r   r   (   s   ýÿzModelBackend.authenticatec                 C   s   t |ddƒS )z{
        Reject users with is_active=False. Custom user models that don't have
        that attribute are allowed.
        Ú	is_activeTN)Úgetattr©r   r1   r   r   r   r.   7   s   z"ModelBackend.user_can_authenticatec                 C   s
   |j  ¡ S r   )Zuser_permissionsÚall)r   r   r   r   r   Ú_get_user_permissions>   s   
z"ModelBackend._get_user_permissionsc                 C   s0   t ƒ j d¡}d| ¡  }tjjdi ||i¤ŽS )NÚgroupsz	group__%sr   )r   Z_metaÚ	get_fieldZrelated_query_namer   ÚobjectsÚfilter)r   r   Zuser_groups_fieldZuser_groups_queryr   r   r   Ú_get_group_permissionsA   s   z#ModelBackend._get_group_permissionsc                 C   s€   |j r
|js
|durtƒ S d| }t||ƒs;|jrtj ¡ }n	t| d| ƒ|ƒ}| 	dd¡ 
¡ }t||dd„ |D ƒƒ t||ƒS )zá
        Return the permissions of `user_obj` from `from_name`. `from_name` can
        be either "group" or "user" to return permissions from
        `_get_group_permissions` or `_get_user_permissions` respectively.
        Nz_%s_perm_cachez_get_%s_permissionsÚcontent_type__app_labelÚcodenamec                 S   s   h | ]
\}}d ||f ’qS )z%s.%sr   )Ú.0ÚctÚnamer   r   r   Ú	<setcomp>W   s    z0ModelBackend._get_permissions.<locals>.<setcomp>)r2   Úis_anonymousr   ÚhasattrÚis_superuserr   r9   r5   r3   Zvalues_listZorder_byÚsetattr)r   r   r   Ú	from_nameZperm_cache_nameZpermsr   r   r   Ú_get_permissionsF   s   
ÿ
zModelBackend._get_permissionsc                 C   ó   |   ||d¡S )zs
        Return a set of permission strings the user `user_obj` has from their
        `user_permissions`.
        r1   N©rG   r   r   r   r   r   [   ó   z!ModelBackend.get_user_permissionsc                 C   rH   )zq
        Return a set of permission strings the user `user_obj` has from the
        groups they belong.
        ÚgroupNrI   r   r   r   r   r   b   rJ   z"ModelBackend.get_group_permissionsc                    s8   |j r
|js
|d urtƒ S t|dƒstƒ  |¡|_|jS )NÚ_perm_cache)r2   rB   r   rC   Úsuperr   rL   r   ©Ú	__class__r   r   r   i   s
   
z ModelBackend.get_all_permissionsc                    s   |j otƒ j|||d�S r   )r2   rM   r"   r    rN   r   r   r"   p   s   zModelBackend.has_permc                    s"   |j ot‡ fdd„|  |¡D ƒƒS )zU
        Return True if user_obj has any permissions in the given app_label.
        c                 3   s&   � | ]}|d |  d¡… ˆ kV  qd S )NÚ.)Úindex)r>   r!   ©Ú	app_labelr   r   Ú	<genexpr>w   s
   € ÿ
ÿz0ModelBackend.has_module_perms.<locals>.<genexpr>N)r2   Úanyr   )r   r   rS   r   rR   r   Úhas_module_permss   s   þzModelBackend.has_module_permsTc           	      C   sä   t |tƒrz	| d¡\}}W n ty   tdƒ‚w t |tƒs#tdƒ‚|dur,tj ¡ S t	t
dƒd�t	t
dƒd�B }t |tƒrH|t	|jd�M }n|t	||d	�M }ttj |¡ƒ}|ra|t	d
d�O }|durl|t	|d�M }tj |¡S )z�
        Return users that have permission "perm". By default, filter out
        inactive users and include superusers.
        rP   zDPermission name should be in the form app_label.permission_codename.z>The `perm` argument must be a string or a permission instance.NÚpk)Zgroup__user)r1   ©rW   )r=   r<   T)rD   )r2   )Ú
isinstanceÚstrÚsplitÚ
ValueErrorr   Ú	TypeErrorr(   r*   Únoner   r   rW   r   r9   r:   )	r   r!   r2   Zinclude_superusersr   rS   r=   Zpermission_qZuser_qr   r   r   Ú	with_perm|   s0   
ÿÿ
ÿ

zModelBackend.with_permc                 C   s<   z	t jj|d�}W n t jy   Y d S w |  |¡r|S d S )NrX   )r(   r*   r'   r,   r.   )r   r   r1   r   r   r   r   Ÿ   s   ÿzModelBackend.get_user)NNr   )TTN)r#   r$   r%   Ú__doc__r   r.   r6   r;   rG   r   r   r   r"   rV   r_   r   Ú__classcell__r   r   rN   r   r&   #   s    



	#r&   c                   @   ó   e Zd Zdd„ ZdS )ÚAllowAllUsersModelBackendc                 C   ó   dS ©NTr   r4   r   r   r   r.   ¨   r   z/AllowAllUsersModelBackend.user_can_authenticateN©r#   r$   r%   r.   r   r   r   r   rc   §   ó    rc   c                   @   s.   e Zd ZdZdZdd„ Zdd„ Zd
dd„Zd	S )ÚRemoteUserBackendaÆ  
    This backend is to be used in conjunction with the ``RemoteUserMiddleware``
    found in the middleware module of this package, and is used when the server
    is handling authentication outside of Django.

    By default, the ``authenticate`` method creates ``User`` objects for
    usernames that don't already exist in the database.  Subclasses can disable
    this behavior by setting the ``create_unknown_user`` attribute to
    ``False``.
    Tc                 C   s¾   |sdS d}d}|   |¡}| jrtjjdi tj|i¤Ž\}}nztj |¡}W n
 tjy1   Y nw t| j	dƒrA| j	|||d�}nt
jd| jj› d�td� |rV|  	||¡}|  |¡r]|S dS )	ai  
        The username passed as ``remote_user`` is considered trusted. Return
        the ``User`` object with the given username. Create a new ``User``
        object if ``create_unknown_user`` is ``True``.

        Return None if ``create_unknown_user`` is ``False`` and a ``User``
        object with the given username is not found in the database.
        NFÚcreated)ri   z1`created=True` must be added to the signature of z.configure_user().)Úcategoryr   )Úclean_usernameÚcreate_unknown_userr(   r*   Zget_or_creater)   r+   r,   r   Úconfigure_userÚwarningsÚwarnrO   r%   r   r.   )r   r   Zremote_userri   r1   r/   r   r   r   r   »   s2   	

ÿÿÿýzRemoteUserBackend.authenticatec                 C   s   |S )zÆ
        Perform any cleaning on the "username" prior to using it to get or
        create the user object.  Return the cleaned username.

        By default, return the username unchanged.
        Nr   )r   r/   r   r   r   rk   å   s   z RemoteUserBackend.clean_usernamec                 C   s   |S )zp
        Configure a user and return the updated user.

        By default, return the user unmodified.
        Nr   )r   r   r1   ri   r   r   r   rm   î   s   z RemoteUserBackend.configure_userN)T)r#   r$   r%   r`   rl   r   rk   rm   r   r   r   r   rh   ¬   s    *	rh   c                   @   rb   )ÚAllowAllUsersRemoteUserBackendc                 C   rd   re   r   r4   r   r   r   r.   ø   r   z4AllowAllUsersRemoteUserBackend.user_can_authenticateNrf   r   r   r   r   rp   ÷   rg   rp   )rn   Zdjango.contrib.authr   Zdjango.contrib.auth.modelsr   Zdjango.db.modelsr   r   r   Zdjango.utils.deprecationr   Zdjango.utils.inspectr   r(   r	   r&   rc   rh   rp   r   r   r   r   Ú<module>   s     K