o
    
h-                     @   s   d dl Z d dlZd dlmZ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 ejej ZG dd	 d	eZG d
d deZG dd dZdS )    N)datetime	timedelta)settings)signing)timezone)get_random_string)import_stringc                   @      e Zd ZdZdS )CreateErrorz
    Used internally as a consistent exception type to catch from save (see the
    docstring for SessionBase.save() for details).
    N__name__
__module____qualname____doc__ r   r   g/var/www/html/optinet_system/venv/lib/python3.10/site-packages/django/contrib/sessions/backends/base.pyr
      s    r
   c                   @   r	   )UpdateErrorzF
    Occurs if Django tries to update a session that was deleted.
    Nr   r   r   r   r   r      s    r   c                   @   s  e Zd ZdZdZdZe ZdVddZdd Z	d	d
 Z
dd Zdd Zedd ZdVddZefddZdd Zdd Zdd Zdd Zdd Zdd  Zd!d" Zd#d$ Zd%d& Zd'd( Zd)d* Zd+d, Zd-d. Zd/d0 Zd1d2 Zd3d4 Z d5d6 Z!d7d8 Z"ee!Z#ee!e"Z$dWd:d;Z%ee%Z&d<d= Z'd>d? Z(d@dA Z)dBdC Z*dDdE Z+dFdG Z,dHdI Z-dJdK Z.dLdM Z/dWdNdOZ0dVdPdQZ1dRdS Z2e3dTdU Z4dS )XSessionBasez-
    Base class for all Session classes.
    
testcookieworkedNc                 C   s"   || _ d| _d| _ttj| _d S )NF)_session_keyaccessedmodifiedr   r   SESSION_SERIALIZER
serializerselfsession_keyr   r   r   __init__+   s   zSessionBase.__init__c                 C   
   || j v S N_sessionr   keyr   r   r   __contains__1      
zSessionBase.__contains__c                 C   s
   | j | S r    r!   r#   r   r   r   __getitem__4   r&   zSessionBase.__getitem__c                 C   s   || j |< d| _d S NTr"   r   r   r$   valuer   r   r   __setitem__7   s   

zSessionBase.__setitem__c                 C   s   | j |= d| _d S r(   r)   r#   r   r   r   __delitem__;   s   
zSessionBase.__delitem__c                 C   s   d| j j S )Nzdjango.contrib.sessions.)	__class__r   r   r   r   r   key_salt?   s   zSessionBase.key_saltc                 C   s   | j ||S r    )r"   get)r   r$   defaultr   r   r   r1   C   s   zSessionBase.getc                 C   s:   | j p|| jv | _ || ju rdn|f}| jj|g|R  S )Nr   )r   r"   _SessionBase__not_givenpop)r   r$   r2   argsr   r   r   r4   F   s   zSessionBase.popc                 C   s(   || j v r
| j | S d| _|| j |< |S r(   r)   r*   r   r   r   
setdefaultK   s
   


zSessionBase.setdefaultc                 C   s   | j | | j< d S r    )TEST_COOKIE_VALUETEST_COOKIE_NAMEr/   r   r   r   set_test_cookieS   s   zSessionBase.set_test_cookiec                 C   s   |  | j| jkS r    )r1   r8   r7   r/   r   r   r   test_cookie_workedV   s   zSessionBase.test_cookie_workedc                 C   s   | | j = d S r    )r8   r/   r   r   r   delete_test_cookieY   s   zSessionBase.delete_test_cookiec                 C   s   t j|| j| jddS )zGReturn the given session dictionary serialized and encoded as a string.T)saltr   compress)r   dumpsr0   r   )r   session_dictr   r   r   encode\   s   zSessionBase.encodec                 C   sT   zt j|| j| jdW S  t jy    td}|d Y i S  ty)   Y i S w )N)r<   r   z!django.security.SuspiciousSessionzSession data corrupted)	r   loadsr0   r   BadSignaturelogging	getLoggerwarning	Exception)r   session_dataloggerr   r   r   decodee   s   

zSessionBase.decodec                 C   s   | j | d| _d S r(   )r"   updater   )r   dict_r   r   r   rJ   s   s   
zSessionBase.updatec                 C   r   r    r!   r#   r   r   r   has_keyw   r&   zSessionBase.has_keyc                 C   
   | j  S r    )r"   keysr/   r   r   r   rN   z   r&   zSessionBase.keysc                 C   rM   r    )r"   valuesr/   r   r   r   rO   }   r&   zSessionBase.valuesc                 C   rM   r    )r"   itemsr/   r   r   r   rP      r&   zSessionBase.itemsc                 C   s   i | _ d| _d| _d S r(   )_session_cacher   r   r/   r   r   r   clear   s   
zSessionBase.clearc                 C   s(   z	| j  o| j W S  ty   Y dS w )zBReturn True when there is no session_key and the session is empty.T)r   rQ   AttributeErrorr/   r   r   r   is_empty   s
   zSessionBase.is_emptyc                 C   s   	 t dt}| |s|S q)z)Return session key that isn't being used.T    )r   VALID_KEY_CHARSexistsr   r   r   r   _get_new_session_key   s
   

z SessionBase._get_new_session_keyc                 C   s   | j d u r
|  | _ | j S r    )r   rX   r/   r   r   r   _get_or_create_session_key   s   

z&SessionBase._get_or_create_session_keyc                 C   s   |ot |dkS )z
        Key must be truthy and at least 8 characters long. 8 characters is an
        arbitrary lower bound for some minimal key security.
           )lenr#   r   r   r   _validate_session_key   s   z!SessionBase._validate_session_keyc                 C   s   | j S r    )_SessionBase__session_keyr/   r   r   r   _get_session_key      zSessionBase._get_session_keyc                 C   s   |  |r
|| _dS d| _dS )zV
        Validate session key on assignment. Invalid values will set to None.
        N)r\   r]   r   r+   r   r   r   _set_session_key   s   


zSessionBase._set_session_keyFc                 C   sL   d| _ z| jW S  ty%   | jdu s|ri | _Y | jS |  | _Y | jS w )z
        Lazily load session from storage (unless "no_load" is True, when only
        an empty dict is stored) and store it in the current instance.
        TN)r   rQ   rS   r   load)r   no_loadr   r   r   _get_session   s   zSessionBase._get_sessionc                 C   s   t jS r    )r   SESSION_COOKIE_AGEr/   r   r   r   get_session_cookie_age   r_   z"SessionBase.get_session_cookie_agec                 K   s   z|d }W n t y   t }Y nw z|d }W n t y(   | d}Y nw |s/|  S t|ttfs8|S t|trBt|}|| }|j	d |j
 S )zGet the number of seconds until the session expires.

        Optionally, this function accepts `modification` and `expiry` keyword
        arguments specifying the modification and expiry of the session.
        modificationexpiry_session_expiryiQ )KeyErrorr   nowr1   rf   
isinstancer   strfromisoformatdaysseconds)r   kwargsrg   rh   deltar   r   r   get_expiry_age   s$   

zSessionBase.get_expiry_agec                 K   s   z|d }W n t y   t }Y nw z|d }W n t y(   | d}Y nw t|tr0|S t|tr:t|S |p?|  }|t	|d S )zGet session the expiry date (as a datetime object).

        Optionally, this function accepts `modification` and `expiry` keyword
        arguments specifying the modification and expiry of the session.
        rg   rh   ri   )rp   )
rj   r   rk   r1   rl   r   rm   rn   rf   r   )r   rq   rg   rh   r   r   r   get_expiry_date   s    


zSessionBase.get_expiry_datec                 C   s^   |du rz| d= W dS  t y   Y dS w t|tr t | }t|tr)| }|| d< dS )a*  
        Set a custom expiration for the session. ``value`` can be an integer,
        a Python ``datetime`` or ``timedelta`` object or ``None``.

        If ``value`` is an integer, the session will expire after that many
        seconds of inactivity. If set to ``0`` then the session will expire on
        browser close.

        If ``value`` is a ``datetime`` or ``timedelta`` object, the session
        will expire at that specific future time.

        If ``value`` is ``None``, the session uses the global session expiry
        policy.
        Nri   )rj   rl   r   r   rk   r   	isoformatr`   r   r   r   
set_expiry   s   

zSessionBase.set_expiryc                 C   s    |  d }du rtjS |dkS )a  
        Return ``True`` if the session is set to expire when the browser
        closes, and ``False`` if there's an expiry date. Use
        ``get_expiry_date()`` or ``get_expiry_age()`` to find the actual expiry
        date/age, if there is one.
        ri   Nr   )r1   r   SESSION_EXPIRE_AT_BROWSER_CLOSE)r   rh   r   r   r   get_expire_at_browser_close  s   z'SessionBase.get_expire_at_browser_closec                 C   s   |    |   d| _dS )zc
        Remove the current session data from the database and regenerate the
        key.
        N)rR   deleter   r/   r   r   r   flush!  s   
zSessionBase.flushc                 C   s0   | j }| j}|   || _|r| | dS dS )zU
        Create a new session key, while retaining the current session data.
        N)r"   r   createrQ   ry   )r   datar$   r   r   r   	cycle_key*  s   zSessionBase.cycle_keyc                 C      t d)zF
        Return True if the given session_key already exists.
        z9subclasses of SessionBase must provide an exists() methodNotImplementedErrorr   r   r   r   rW   7     zSessionBase.existsc                 C   r~   )z
        Create a new session instance. Guaranteed to create a new object with
        a unique key and will have saved the result once (with empty data)
        before the method returns.
        z8subclasses of SessionBase must provide a create() methodr   r/   r   r   r   r{   ?     zSessionBase.createc                 C   r~   )z
        Save the session data. If 'must_create' is True, create a new session
        object (or raise CreateError). Otherwise, only update an existing
        object and don't create one (raise UpdateError if needed).
        z6subclasses of SessionBase must provide a save() methodr   )r   must_creater   r   r   saveI  r   zSessionBase.savec                 C   r~   )zx
        Delete the session data under this key. If the key is None, use the
        current session key value.
        z8subclasses of SessionBase must provide a delete() methodr   r   r   r   r   ry   S  s   zSessionBase.deletec                 C   r~   )z@
        Load the session data and return a dictionary.
        z6subclasses of SessionBase must provide a load() methodr   r/   r   r   r   rb   \  r   zSessionBase.loadc                 C   r~   )a  
        Remove expired sessions from the session store.

        If this operation isn't possible on a given backend, it should raise
        NotImplementedError. If it isn't necessary, because the backend has
        a built-in expiration mechanism, it should be a no-op.
        z.This backend does not support clear_expired().r   )clsr   r   r   clear_expiredd  s   	zSessionBase.clear_expiredr    )F)5r   r   r   r   r8   r7   objectr3   r   r%   r'   r,   r-   propertyr0   r1   r4   r6   r9   r:   r;   r@   rI   rJ   rL   rN   rO   rP   rR   rT   rX   rY   r\   r^   ra   r   r   rd   r"   rf   rs   rt   rv   rx   rz   r}   rW   r{   r   ry   rb   classmethodr   r   r   r   r   r   !   sd    


		

	



	r   )rC   stringr   r   django.confr   django.corer   django.utilsr   django.utils.cryptor   django.utils.module_loadingr   ascii_lowercasedigitsrV   rF   r
   r   r   r   r   r   r   <module>   s    	