jwt/utils.py


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import base64


def base64url_decode(input):
    rem = len(input) % 4

    if rem > 0:
        input += b'=' * (4 - rem)

    return base64.urlsafe_b64decode(input)


def base64url_encode(input):
    return base64.urlsafe_b64encode(input).replace(b'=', b'')