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Editing: signing.cpython-311.pyc
� �|�e� � �X � d Z ddlZddlZddlZddlZddlZddlmZ ddlm Z ddl mZmZ ddl mZ ddlmZ ddlmZ ed � � Z G d � de� � Z G d� d e� � Zd� Zd� Zdd�Zdd�Z G d� d� � Zddedfd�Zddedfd�Z G d� d� � Z G d� de� � ZdS ) ae Functions for creating and restoring url-safe signed JSON objects. The format used looks like this: >>> signing.dumps("hello") 'ImhlbGxvIg:1QaUZC:YIye-ze3TTx7gtSv422nZA4sgmk' There are two components here, separated by a ':'. The first component is a URLsafe base64 encoded JSON of the object passed to dumps(). The second component is a base64 encoded hmac/SHA1 hash of "$first_component:$secret" signing.loads(s) checks the signature and returns the deserialized object. If the signature fails, a BadSignature exception is raised. >>> signing.loads("ImhlbGxvIg:1QaUZC:YIye-ze3TTx7gtSv422nZA4sgmk") 'hello' >>> signing.loads("ImhlbGxvIg:1QaUZC:YIye-ze3TTx7gtSv422nZA4sgmk-modified") ... BadSignature: Signature failed: ImhlbGxvIg:1QaUZC:YIye-ze3TTx7gtSv422nZA4sgmk-modified You can optionally compress the JSON prior to base64 encoding it to save space, using the compress=True argument. This checks if compression actually helps and only applies compression if the result is a shorter string: >>> signing.dumps(list(range(1, 20)), compress=True) '.eJwFwcERACAIwLCF-rCiILN47r-GyZVJsNgkxaFxoDgxcOHGxMKD_T7vhAml:1QaUaL:BA0thEZrp4FQVXIXuOvYJtLJSrQ' The fact that the string is compressed is signalled by the prefixed '.' at the start of the base64 JSON. There are 65 url-safe characters: the 64 used by url-safe base64 and the ':'. These functions make use of all of them. � N)�settings)�baseconv)�constant_time_compare�salted_hmac)�force_bytes)� import_string)�_lazy_re_compilez^[A-z0-9-_=]*$c � � e Zd ZdZdS )�BadSignaturezSignature does not match.N��__name__� __module__�__qualname__�__doc__� � �5/usr/lib/python3/dist-packages/django/core/signing.pyr r 4 s � � � � � �#�#��Dr r c � � e Zd ZdZdS )�SignatureExpiredz3Signature timestamp is older than required max_age.Nr r r r r r 9 s � � � � � �=�=��Dr r c �P � t j | � � � d� � S )N� =)�base64�urlsafe_b64encode�strip)�ss r � b64_encoder >