/usr/local/lib/python3.9/site-packages/django/contrib/sessions/backends/__pycache__
a Ӱ�h�- � @ s� d dl Z d dlZd dlmZmZ d dlmZ d dlmZ d dlm Z d dl m Z d dl m Z ejej ZG dd � d e�ZG d d � d e�ZG d d � d �ZdS )� N)�datetime� timedelta)�settings)�signing)�timezone)�get_random_string)� import_stringc @ s e Zd ZdZdS )� 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 �O/usr/local/lib/python3.9/site-packages/django/contrib/sessions/backends/base.pyr s r c @ s e Zd ZdZdS )� UpdateErrorzF Occurs if Django tries to update a session that was deleted. Nr r r r r r s r c @ s� e Zd ZdZdZdZe� ZdVdd�Zdd� Z d d � Z d d � Z d d� Z e dd� �ZdWdd�Zefdd�Zdd� Zdd� Zdd� Zdd � Zd d � Zd d � Zd!d"� Zd#d$� Zd%d&� Zd'd(� Zd)d*� Zd+d,� Z d-d.� Z d/d0� Z d1d2� Z d3d4� Z d5d6� Z!d7d8� Z"e e!�Z#e e!e"�Z$dXd: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/dYdNdO�Z0dZdPdQ�Z1dRdS� Z2e3dTdU� �Z4dS )[� SessionBasez- Base class for all Session classes. Z testcookieZworkedNc C s" || _ d| _d| _ttj�| _d S )NF)� _session_key�accessed�modifiedr r ZSESSION_SERIALIZER� serializer��self� session_keyr r r �__init__+ s zSessionBase.__init__c C s || j v S �N��_session�r �keyr r r � __contains__1 s zSessionBase.__contains__c C s | j | S r r r r r r � __getitem__4 s zSessionBase.__getitem__c C s || j |< d| _d S �NT�r r �r r �valuer r r � __setitem__7 s zSessionBase.__setitem__c C s | j |= d| _d S r" r# r r r r � __delitem__; s zSessionBase.__delitem__c C s d| j j S )Nzdjango.contrib.sessions.)� __class__r �r r r r �key_salt? s zSessionBase.key_saltc C s | j �||�S r )r �get)r r �defaultr r r r+ C s zSessionBase.getc C s: | j p|| jv | _ || ju r dn|f}| jj|g|�R � S )Nr )r r �_SessionBase__not_given�pop)r r r, �argsr r r r. F s zSessionBase.popc C s, || j v r| j | S d| _|| j |< |S d S r" r# r$ r r r � setdefaultK s zSessionBase.setdefaultc C s | j | | j< d S r )�TEST_COOKIE_VALUE�TEST_COOKIE_NAMEr) r r r �set_test_cookieS s zSessionBase.set_test_cookiec C s | � | j�| jkS r )r+ r2 r1 r) r r r �test_cookie_workedV s z SessionBase.test_cookie_workedc C s | | j = d S r )r2 r) r r r �delete_test_cookieY s z SessionBase.delete_test_cookiec C s t j|| j| jdd�S )zGReturn the given session dictionary serialized and encoded as a string.T)�saltr �compress)r �dumpsr* r )r Z session_dictr r r �encode\ s �zSessionBase.encodec C sT zt j|| j| jd�W S t jy> t�d�}|�d� Y n tyN Y n0 i S )N)r6 r z!django.security.SuspiciousSessionzSession data corrupted) r �loadsr* r Z BadSignature�logging� getLogger�warning� Exception)r Z session_data�loggerr r r �decodee s � zSessionBase.decodec C s | j �|� d| _d S r" )r �updater )r Zdict_r r r rA s s zSessionBase.updatec C s || j v S r r r r r r �has_keyw s zSessionBase.has_keyc C s | j �� S r )r �keysr) r r r rC z s zSessionBase.keysc C s | j �� S r )r �valuesr) r r r rD } s zSessionBase.valuesc C s | j �� S r )r �itemsr) r r r rE � s zSessionBase.itemsc C s i | _ d| _d| _d S r" )�_session_cacher r r) r r r �clear� s zSessionBase.clearc C s, z| j o| j W S ty& Y dS 0 dS )zBReturn True when there is no session_key and the session is empty.TN)r rF �AttributeErrorr) r r r �is_empty� s zSessionBase.is_emptyc C s t dt�}| �|�s |S q dS )z)Return session key that isn't being used.� N)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 rM r) r r r �_get_or_create_session_key� s z&SessionBase._get_or_create_session_keyc C s |ot |�dkS )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� s z SessionBase._get_session_keyc C s | � |�r|| _nd| _dS )zV Validate session key on assignment. Invalid values will set to None. N)rQ rR �r r% r r r �_set_session_key� s z SessionBase._set_session_keyFc C sH d| _ z| jW S ty@ | jdu s*|r2i | _n | �� | _Y n0 | jS )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 rF rH r �load)r Zno_loadr r r � _get_session� s zSessionBase._get_sessionc C s t jS r )r ZSESSION_COOKIE_AGEr) r r r �get_session_cookie_age� s z"SessionBase.get_session_cookie_agec K s� z |d }W n t y& t�� }Y n0 z |d }W n t yP | �d�}Y n0 |s^| �� S t|ttf�sp|S t|t�r�t�|�}|| }|j d |j S )z�Get 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_expiryi�Q ) �KeyErrorr �nowr+ rX � isinstancer �str� fromisoformat�days�seconds)r �kwargsrY rZ �deltar r r �get_expiry_age� s zSessionBase.get_expiry_agec K s� z |d }W n t y& t�� }Y n0 z |d }W n t yP | �d�}Y n0 t|t�r`|S t|t�rtt�|�S |p~| �� }|t |d� S )z�Get 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. rY rZ r[ )rb ) r\ r r] r+ r^ r r_ r` rX r )r rc rY rZ r r r �get_expiry_date� s zSessionBase.get_expiry_datec C s^ |du r*z | d= W n t y$ Y n0 dS t|t�r@t�� | }t|t�rR|�� }|| d< dS )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. Nr[ )r\ r^ r r r] r � isoformatrT r r r � set_expiry� s zSessionBase.set_expiryc C s | � d� }du rtjS |dkS )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. r[ Nr )r+ r Z SESSION_EXPIRE_AT_BROWSER_CLOSE)r rZ r r r �get_expire_at_browser_close s z'SessionBase.get_expire_at_browser_closec C s | � � | �� d| _dS )zc Remove the current session data from the database and regenerate the key. N)rG �deleter r) r r r �flush! s zSessionBase.flushc C s, | j }| j}| �� || _|r(| �|� dS )zU Create a new session key, while retaining the current session data. N)r r �createrF rj )r �datar r r r � cycle_key* s zSessionBase.cycle_keyc C s t d��dS )zF Return True if the given session_key already exists. z9subclasses of SessionBase must provide an exists() methodN��NotImplementedErrorr r r r rL 7 s �zSessionBase.existsc C s t d��dS )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() methodNro r) r r r rl ? s �zSessionBase.createc C s t d��dS )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() methodNro )r Z must_creater r r �saveI s �zSessionBase.savec C s t d��dS )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() methodNro r r r r rj S s �zSessionBase.deletec C s t d��dS )z@ Load the session data and return a dictionary. z6subclasses of SessionBase must provide a load() methodNro r) r r r rV \ s �zSessionBase.loadc C s t d��dS )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().Nro )�clsr r r � clear_expiredd s zSessionBase.clear_expired)N)N)F)F)N)5r r r r r2 r1 �objectr- r r r! r& r' �propertyr* r+ r. r0 r3 r4 r5 r9 r@ rA rB rC rD rE rG rI rM rN rQ rS rU r r rW r rX re rf rh ri rk rn rL rl rq rj rV � classmethodrs r r r r r ! sb r )r; �stringr r Z django.confr Z django.corer Z django.utilsr Zdjango.utils.cryptor Zdjango.utils.module_loadingr �ascii_lowercase�digitsrK r> r r r r r r r �<module> s
.
Edit
..
Edit
__init__.cpython-39.pyc
Edit
base.cpython-39.pyc
Edit
cache.cpython-39.pyc
Edit
cached_db.cpython-39.pyc
Edit
db.cpython-39.pyc
Edit
file.cpython-39.pyc
Edit
signed_cookies.cpython-39.pyc
Edit