o
    uvXj  ã                   @   s�   d dl mZ d dlmZ d dlmZ d dlmZ d dlm	Z	 d dl
mZ d dlmZ dd	„ 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    )Úsettings)Úauth)Úload_backend)ÚRemoteUserBackend)ÚImproperlyConfigured)ÚMiddlewareMixin)ÚSimpleLazyObjectc                 C   s   t | dƒst | ¡| _| jS )NÚ_cached_user)Úhasattrr   Úget_userr	   ©Úrequest© r   ú[/var/www/html/myproject/venv/lib/python3.10/site-packages/django/contrib/auth/middleware.pyr   
   s   
r   c                   @   s   e Zd Zdd„ ZdS )ÚAuthenticationMiddlewarec                    s>   t ˆ dƒsJ dtjd u rd ƒ‚d ƒ‚t‡ fdd„ƒˆ _d S )NÚsessionzóThe Django authentication middleware requires session middleware to be installed. Edit your MIDDLEWARE%s setting to insert 'django.contrib.sessions.middleware.SessionMiddleware' before 'django.contrib.auth.middleware.AuthenticationMiddleware'.Ú_CLASSESÚ c                      s   t ˆ ƒS )N)r   r   r   r   r   Ú<lambda>   s    z:AuthenticationMiddleware.process_request.<locals>.<lambda>)r
   r   Ú
MIDDLEWAREr   Úuser)Úselfr   r   r   r   Úprocess_request   s   ûûz(AuthenticationMiddleware.process_requestN)Ú__name__Ú
__module__Ú__qualname__r   r   r   r   r   r      s    r   c                   @   s0   e Zd ZdZdZdZdd„ Zdd„ Zdd	„ Zd
S )ÚRemoteUserMiddlewareaý  
    Middleware for utilizing Web-server-provided authentication.

    If request.user is not authenticated, then this middleware attempts to
    authenticate the username passed in the ``REMOTE_USER`` request header.
    If authentication is successful, the user is automatically logged in to
    persist the user in the session.

    The header used is configurable and defaults to ``REMOTE_USER``.  Subclass
    this class and change the ``header`` attribute if you need to use a
    different header.
    ÚREMOTE_USERTc                 C   s¨   t |dƒs	tdƒ‚z|j| j }W n ty'   | jr$|jjr$|  |¡ Y d S w |jjr>|j 	¡ |  
||¡kr9d S |  |¡ tj||d�}|rR||_t ||¡ d S d S )Nr   zçThe Django remote user auth middleware requires the authentication middleware to be installed.  Edit your MIDDLEWARE setting to insert 'django.contrib.auth.middleware.AuthenticationMiddleware' before the RemoteUserMiddleware class.)Úremote_user)r
   r   ÚMETAÚheaderÚKeyErrorÚforce_logout_if_no_headerr   Úis_authenticatedÚ_remove_invalid_userÚget_usernameÚclean_usernamer   ÚauthenticateÚlogin)r   r   Úusernamer   r   r   r   r   /   s(   
ÿ
ú

üz$RemoteUserMiddleware.process_requestc                 C   s<   |j tj }t |¡}z| |¡}W |S  ty   Y |S w )zr
        Allow the backend to clean the username, if the backend defines a
        clean_username method.
        )r   r   ÚBACKEND_SESSION_KEYr   r&   ÚAttributeError)r   r)   r   Úbackend_strÚbackendr   r   r   r&   U   s   
þþz#RemoteUserMiddleware.clean_usernamec                 C   sT   zt |j tjd¡ƒ}W n ty   t |¡ Y dS w t|tƒr(t |¡ dS dS )z 
        Remove the current authenticated user in the request which is invalid
        but only if the user is authenticated via the RemoteUserBackend.
        r   N)	r   r   Úgetr   r*   ÚImportErrorÚlogoutÚ
isinstancer   )r   r   Ústored_backendr   r   r   r$   b   s   þ
ÿz)RemoteUserMiddleware._remove_invalid_userN)	r   r   r   Ú__doc__r    r"   r   r&   r$   r   r   r   r   r      s    &r   c                   @   s   e Zd ZdZdZdS )ÚPersistentRemoteUserMiddlewarea£  
    Middleware for Web-server provided authentication on logon pages.

    Like RemoteUserMiddleware but keeps the user authenticated even if
    the header (``REMOTE_USER``) is not found in the request. Useful
    for setups when the external authentication via ``REMOTE_USER``
    is only expected to happen on some "logon" URL and the rest of
    the application wants to use Django's authentication mechanism.
    FN)r   r   r   r3   r"   r   r   r   r   r4   q   s    	r4   N)Údjango.confr   Údjango.contribr   Údjango.contrib.authr   Údjango.contrib.auth.backendsr   Údjango.core.exceptionsr   Údjango.utils.deprecationr   Údjango.utils.functionalr   r   r   r   r4   r   r   r   r   Ú<module>   s    V