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� *b� � �N � d Z ddlZddlmZ dedefd�Zdeeef defd�ZdS )a `JOSE Base64`_ is defined as: - URL-safe Base64 - padding stripped .. _`JOSE Base64`: https://tools.ietf.org/html/draft-ietf-jose-json-web-signature-37#appendix-C .. Do NOT try to call this module "base64", as it will "shadow" the standard library. � N)�Union�data�returnc � � t | t � � st d� � �t j | � � � d� � S )z�JOSE Base64 encode. :param data: Data to be encoded. :type data: bytes :returns: JOSE Base64 string. :rtype: bytes :raises TypeError: if ``data`` is of incorrect type zargument should be bytes� =)� isinstance�bytes� TypeError�base64�urlsafe_b64encode�rstrip�r s �,/usr/lib/python3/dist-packages/josepy/b64.py� b64encoder sD � � �d�E� "� "� 4��2�3�3�3� � #�D� )� )� 0� 0�� 6� 6�6� c �6 � t | t � � r4 | � d� � } nA# t $ r t d� � �w xY wt | t � � st d� � �t j | ddt | � � dz z z z � � S )a^ JOSE Base64 decode. :param data: Base64 string to be decoded. If it's unicode, then only ASCII characters are allowed. :type data: bytes or unicode :returns: Decoded data. :rtype: bytes :raises TypeError: if input is of incorrect type :raises ValueError: if input is unicode with non-ASCII characters �asciiz5unicode argument should contain only ASCII charactersz#argument should be a str or unicoder � ) r �str�encode�UnicodeEncodeError� ValueErrorr r r �urlsafe_b64decode�lenr s r � b64decoder " s� � � �$�� � � ?� I��;�;�w�'�'�D�D��!� I� I� I� �G�I� I� I� I���� ��e� $� $� ?��=�>�>�>� � #�D�4�1��D� � �A� �3F�+G�$G� H� H�Hs �- �A)�__doc__r �typingr r r r r � r r �<module>r s� �� � � � � � � � � � � � �7�E� 7�e� 7� 7� 7� 7�"I�E�%��*�%� I�%� I� I� I� I� I� Ir