a
    LcòfJ  ã                   @   s|   d dl Z d dlZd dlZd dlZd dlZd dlmZ d dlmZm	Z	m
Z
mZ d dlmZ d dlmZmZ G dd„ de
ƒZdS )é    N)Úsettings)ÚVALID_KEY_CHARSÚCreateErrorÚSessionBaseÚUpdateError)ÚInvalidSessionKey)ÚImproperlyConfiguredÚSuspiciousOperationc                       sˆ   e Zd ZdZd‡ fdd„	Zedd„ ƒZddd„Zd	d
„ Zdd„ Z	dd„ Z
dd„ Zddd„Zdd„ Zddd„Zdd„ Zedd„ ƒZ‡  ZS ) ÚSessionStorez/
    Implement a file based session store.
    Nc                    s"   |   ¡ | _tj| _tƒ  |¡ d S ©N)Ú_get_storage_pathÚstorage_pathr   ÚSESSION_COOKIE_NAMEÚfile_prefixÚsuperÚ__init__©ÚselfÚsession_key©Ú	__class__© úb/home/httpd/docs/test/DocsMgr/lib/python3.9/site-packages/django/contrib/sessions/backends/file.pyr      s    
zSessionStore.__init__c                 C   sV   z| j W S  tyP   ttdd ƒp(t ¡ }tj |¡sBt	d| ƒ‚|| _ | Y S 0 d S )NZSESSION_FILE_PATHz•The session storage path %r doesn't exist. Please set your SESSION_FILE_PATH setting to an existing directory in which Django can store session data.)
Z_storage_pathÚAttributeErrorÚgetattrr   ÚtempfileÚ
gettempdirÚosÚpathÚisdirr   )Úclsr   r   r   r   r      s    ÿþÿzSessionStore._get_storage_pathc                 C   s<   |du r|   ¡ }t|ƒ t¡s&tdƒ‚tj | j| j	| ¡S )z@
        Get the file associated with this session key.
        Nz!Invalid characters in session key)
Z_get_or_create_session_keyÚsetÚissubsetr   r   r   r   Újoinr   r   r   r   r   r   Ú_key_to_file/   s
    zSessionStore._key_to_filec                 C   s2   t  |  ¡ ¡j}tjrtjjnd}tjj	||d�S )zY
        Return the modification time of the file storing the session's content.
        N)Útz)
r   Ústatr$   Úst_mtimer   ZUSE_TZÚdatetimeÚtimezoneÚutcÚfromtimestamp)r   Zmodificationr%   r   r   r   Ú_last_modification>   s    zSessionStore._last_modificationc                 C   s"   |  d¡p |  ¡ tj|  ¡ d� S )zS
        Return the expiry time of the file storing the session's content.
        Z_session_expiry)Úseconds)Úgetr,   r(   Ú	timedeltaZget_session_cookie_age)r   Úsession_datar   r   r   Ú_expiry_dateF   s
    
ÿÿzSessionStore._expiry_datec              
   C   sþ   i }zØt |  ¡ dd��}| ¡ }W d   ƒ n1 s40    Y  |rÚz|  |¡}W nZ ttfyª } z>t|tƒrŽt d|j	j
 ¡}| t|ƒ¡ |  ¡  W Y d }~n
d }~0 0 | j|  |¡d�}|dkrÚi }|  ¡  |  ¡  W n ttfyø   d | _Y n0 |S )NÚascii)Úencodingzdjango.security.%s)Zexpiryr   )Úopenr$   ÚreadÚdecodeÚEOFErrorr	   Ú
isinstanceÚloggingÚ	getLoggerr   Ú__name__ÚwarningÚstrÚcreateZget_expiry_ager1   ÚdeleteÚOSErrorÚ_session_key)r   r0   Úsession_fileZ	file_dataÚeÚloggerZ
expiry_ager   r   r   ÚloadO   s,    &

ÿzSessionStore.loadc                 C   s<   |   ¡ | _z| jdd� W n ty0   Y q Y n0 d| _d S )NT)Úmust_create)Z_get_new_session_keyrA   Úsaver   Úmodified©r   r   r   r   r>   k   s    

zSessionStore.createFc              	   C   sP  | j d u r|  ¡ S | j|d�}|  ¡ }z@tjttddƒB }|rN|tjtjB O }t 	||¡}t 
|¡ W n2 ty€   |s|t‚Y n ty˜   |r”t‚Y n0 tj |¡\}}zˆtj||d d�\}}	d}
zVz$t ||  |¡ ¡ ¡ W t 
|¡ nt 
|¡ 0 t |	|¡ d}
W |
�s0t |	¡ n|
�s.t |	¡ 0 W n ttf�yJ   Y n0 d S )N)Zno_loadÚO_BINARYr   Z_out_)ÚdirÚprefixFT)r   r>   Z_get_sessionr$   r   ÚO_WRONLYr   ÚO_EXCLÚO_CREATr4   ÚcloseÚFileNotFoundErrorr   ÚFileExistsErrorr   r   Úsplitr   ÚmkstempÚwriteÚencodeÚshutilÚmoveÚunlinkr7   r@   )r   rF   r0   Zsession_file_nameÚflagsÚfdrK   rL   Zoutput_file_fdZoutput_file_nameZrenamedr   r   r   rG   u   sD    

ÿ
ÿzSessionStore.savec                 C   s   t j |  |¡¡S r   )r   r   Úexistsr$   r   r   r   r   r\   ´   s    zSessionStore.existsc                 C   sH   |d u r| j d u rd S | j }zt |  |¡¡ W n tyB   Y n0 d S r   )r   r   rY   r$   r@   r   r   r   r   r?   ·   s    
zSessionStore.deletec                 C   s   d S r   r   rI   r   r   r   ÚcleanÁ   s    zSessionStore.cleanc                 C   sX   |   ¡ }tj}t |¡D ]:}| |¡s(q|t|ƒd … }| |ƒ}dd„ |_| ¡  qd S )Nc                   S   s   d S r   r   r   r   r   r   Ú<lambda>Ñ   ó    z,SessionStore.clear_expired.<locals>.<lambda>)	r   r   r   r   ÚlistdirÚ
startswithÚlenr>   rE   )r    r   r   rB   r   Úsessionr   r   r   Úclear_expiredÄ   s    

zSessionStore.clear_expired)N)N)F)N)r;   Ú
__module__Ú__qualname__Ú__doc__r   Úclassmethodr   r$   r,   r1   rE   r>   rG   r\   r?   r]   rd   Ú__classcell__r   r   r   r   r
      s   

	

?

r
   )r(   r9   r   rW   r   Zdjango.confr   Z%django.contrib.sessions.backends.baser   r   r   r   Z"django.contrib.sessions.exceptionsr   Zdjango.core.exceptionsr   r	   r
   r   r   r   r   Ú<module>   s   