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Z$ d3 d Z% d4 Z& e& d5 d6 Z' d7 d Z( d8 d Z) d9 d: Z* d; d Z+ d< d= Z, d> d Z- d? d@ Z. dA dB Z/ dC dD Z0 e1 dE k rve/ n d S)FzDBase16, Base32, Base64 (RFC 3548), Base85 and Ascii85 data encodings Nencodedecode encodebytes decodebytes b64encode b64decode b32encode b32decode b16encode b16decode b85encode b85decode a85encode a85decodestandard_b64encodestandard_b64decodeurlsafe_b64encodeurlsafe_b64decodec C s t | t rD y | j d SWqD t k
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r" c C sB t j | d d } | d k r> | j t j d | S| S)aS Encode a byte string using Base64.
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N s +/)binascii
b2a_base64 translatebytes maketrans)r altcharsencodedr r r! r 3 s Fc C sz t | } | d k rB t | } | j t j | d } n | rm t j d | rm t j d n t j | S)a Decode a Base64 encoded byte string.
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Ns +/s ^[A-Za-z0-9+/]*={0,2}$zNon-base64 digit found) r" r' r( r) rematchr% Error
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)r r' _urlsafe_encode_translation)r r r r! r r s c C s% t | } | j t } t | S)aX Decode a byte string encoded with the standard Base64 alphabet.
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s ABCDEFGHIJKLMNOPQRSTUVWXYZ234567c s t d k rA d d t D f d d D a d n t | t se t | j } n t | d } | r | t d | } n t } t j
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s [^0-9A-F]zNon-base16 digit found)r" rU r, searchr% r. Z unhexlify)r rY r r r! r s s <~s ~>c s t | t s$ t | j } n t | d } | rL | d | } n t j d t | d j | } f d d | D } | r | r | d d k r d d | d .r# r_ r r8 r$ r$ r$ r$ ) r r r r rF structStructZunpackjoin) r6 rb rc padrd re paddingZwordschunksr )rb rc rd re r! _85encode& s &
rm re wrapcolrj adobec s t d k r> d d t d d D a d d t D a n t | t t | d | | rl t n r t | r d n d f d
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Nc S s g | ] } t | f q Sr )r( )r2 r3 r r r! r4 U s z a85encode..! v c S s' g | ] } t D] } | | q q Sr ) _a85chars)r2 r5 r6 r r r! r4 V s Tr> r# c s$ g | ] } | | q Sr r )r2 r3 )resultrn r r! r4 ^ s r rf s
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zAAscii85 encoded byte sequences must be bracketed by {!r} and {!r}r> z!I ur? !r r8 ra rp zAscii85 overflowNr_ zz inside Ascii85 5-tuples r` zy inside Ascii85 5-tuples zNon-Ascii85 digit found: %crf rR s uuuurp u z y )r"
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r c C s t | t j | S)z6Decode a bytestring of base-64 data into a bytestring.)r r% r/ )r r r r! r ' s
c C s) d d l } | j d t d t | S)z Legacy alias of decodebytes().r Nz7decodestring() is a deprecated alias, use decodebytes()r> )r r r r )r r r r r! decodestring, s
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zSmall main programr Nr# Zdeutzusage: %s [-d|-e|-u|-t] [file|-]
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