3 (h @s8ddlmZddlmZddlmZGdddeZdS))settings) SessionBase)signingc@sVeZdZddZddZdddZdd d Zdd d Zd dZddZ e ddZ dS) SessionStorec Cs:ytj|j|jtjddStk r4|jYnXiS)z We load the data from the key itself instead of fetching from some external data store. Opposite of _get_session_key(), raises BadSignature if signature fails. z/django.contrib.sessions.backends.signed_cookies) serializerZmax_agesalt)rloads session_keyrrZSESSION_COOKIE_AGE Exceptioncreate)selfr S/tmp/pip-install-q3hcpn_q/Django/django/contrib/sessions/backends/signed_cookies.pyloadszSessionStore.loadcCs d|_dS)z To create a new key, we simply make sure that the modified flag is set so that the cookie is set on the client for the current request. TN)modified)r r r rr szSessionStore.createFcCs|j|_d|_dS)z To save, we get the session key as a securely signed string and then set the modified flag so that the cookie is set on the client for the current request. TN)_get_session_key _session_keyr)r Z must_creater r rsave#s zSessionStore.saveNcCsdS)z This method makes sense when you're talking to a shared resource, but it doesn't matter when you're storing the information in the client's cookie. Fr )r r r r rexists,szSessionStore.existscCsd|_i|_d|_dS)z To delete, we clear the session key and the underlying data structure and set the modified flag so that the cookie is set on the client for the current request. TN)r_session_cacher)r r r r rdelete4szSessionStore.deletecCs |jdS)z Keeps the same data but with a new key. To do this, we just have to call ``save()`` and it will automatically save a cookie with a new key at the end of the request. N)r)r r r r cycle_key>szSessionStore.cycle_keycCs t|di}tj|dd|jdS)z Most session backends don't need to override this method, but we do, because instead of generating a random string, we want to actually generate a secure url-safe Base64-encoded string of data as our session key. rTz/django.contrib.sessions.backends.signed_cookies)compressrr)getattrrdumpsr)r Z session_cacher r rrFs  zSessionStore._get_session_keycCsdS)Nr )clsr r r clear_expiredTszSessionStore.clear_expired)F)N)N) __name__ __module__ __qualname__rr rrrrr classmethodrr r r rrs  rN)Z django.confrZ%django.contrib.sessions.backends.baserZ django.corerrr r r rs