o h @sdZddlZddlZddlZddlmZddlmZddlm Z Gddde Z ddd d d Z d Z e fd dZddZdddZe ejdrOejZejZdSdddddZddddZdS)z3 Django's standard crypto functions and utilities. N)settings) force_bytes)func_supports_parameterc@seZdZdZdS)InvalidAlgorithmz&Algorithm is not supported by hashlib.N)__name__ __module__ __qualname____doc__r r E/var/www/html/env/lib/python3.10/site-packages/django/utils/crypto.pyr srsha1) algorithmc Csx|durtj}t|}t|}ztt|}Wnty)}ztd||d}~ww|||}tj |t||dS)a* Return the HMAC of 'value', using a key generated from key_salt and a secret (which defaults to settings.SECRET_KEY). Default algorithm is SHA1, but any algorithm name supported by hashlib can be passed. A different key_salt should be passed in for every application of HMAC. Nz6%r is not an algorithm accepted by the hashlib module.)msg digestmod) r SECRET_KEYrgetattrhashlibAttributeErrorrdigesthmacnew)key_saltvaluesecretr hasherekeyr r r salted_hmacs r>abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789csdfddt|DS)aG Return a securely generated random string. The bit length of the returned value can be calculated with the formula: log_2(len(allowed_chars)^length) For example, with default `allowed_chars` (26+26+10), this gives: * length: 12, bit length =~ 71 bits * length: 22, bit length =~ 131 bits c3s|]}tVqdSN)secretschoice).0i allowed_charsr r >sz$get_random_string..)joinrange)lengthr&r r%r get_random_string3s r+cCstt|t|S)z:Return True if the two strings are equal, False otherwise.)r!compare_digestr)val1val2r r r constant_time_compareAsr/cCs<|durtj}|p d}t|}t|}t|j||||S)z)Return the hash of password using pbkdf2.N)rsha256r pbkdf2_hmacname)passwordsalt iterationsdklenrr r r pbkdf2Fs r7usedforsecurityT)r8cC t|Sr )rmd5)datar8r r r r;Y r;cCr:r )rr)hash_algorithmr8r r r new_hash\r=r?r )rN)r9)r rrr! django.confrdjango.utils.encodingrdjango.utils.inspectr ValueErrorrrRANDOM_STRING_CHARSr+r/r7r;rr?r r r r s$