✏️ 编辑：base64.pyc
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/usr/lib64/python2.7/base64.pyc
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Optional altchars must be a string of at least length 2 (additional characters are ignored) which specifies an alternative alphabet for the '+' and '/' characters. This allows an application to e.g. generate url or filesystem safe Base64 strings. The encoded string is returned. i����s +/i N( t binasciit b2a_base64t NoneR t stringt maketrans( R R t encoded( ( s /usr/lib64/python2.7/base64.pyR + s c C sh | d k r. | j t j | d d � � } n y t j | � SWn" t j k rc } t | � � n Xd S( s� Decode a Base64 encoded string. s is the string to decode. Optional altchars must be a string of at least length 2 (additional characters are ignored) which specifies the alternative alphabet used instead of the '+' and '/' characters. The decoded string is returned. A TypeError is raised if s is incorrectly padded. Characters that are neither in the normal base-64 alphabet nor the alternative alphabet are discarded prior to the padding check. i s +/N( R R R R R t a2b_base64t Errort TypeError( R R t msg( ( s /usr/lib64/python2.7/base64.pyR < s "c C s t | � S( sy Encode a string using the standard Base64 alphabet. s is the string to encode. The encoded string is returned. ( R ( R ( ( s /usr/lib64/python2.7/base64.pyR Q s c C s t | � S( s- Decode a string encoded with the standard Base64 alphabet. Argument s is the string to decode. The decoded string is returned. A TypeError is raised if the string is incorrectly padded. Characters that are not in the standard alphabet are discarded prior to the padding check. ( R ( R ( ( s /usr/lib64/python2.7/base64.pyR X s s +/s -_c C s t | � j t � S( s� Encode a string using the URL- and filesystem-safe Base64 alphabet. Argument s is the string to encode. The encoded string is returned. The alphabet uses '-' instead of '+' and '_' instead of '/'. ( R R t _urlsafe_encode_translation( R ( ( s /usr/lib64/python2.7/base64.pyR e s c C s t | j t � � S( s� Decode a string using the URL- and filesystem-safe Base64 alphabet. Argument s is the string to decode. The decoded string is returned. A TypeError is raised if the string is incorrectly padded. Characters that are not in the URL-safe base-64 alphabet, and are not a plus '+' or slash '/', are discarded prior to the padding check. The alphabet uses '-' instead of '+' and '_' instead of '/'. ( R R t _urlsafe_decode_translation( R ( ( s /usr/lib64/python2.7/base64.pyR m s t Ai t Ji t Si t 3i t Bi t Ki t Ti t 4i t Ci t Li t Ui t 5i t Di t Mi t Vi t 6i t Ei t Ni t Wi t 7i t Fi t Oi t Xi t Gi t Pi t Yi t Hi t Qi t Zi t Ii t Ri t 2i c C s� g } t t | � d � \ } } | rF | d d | 7} | d 7} n x� t | � D]� } t j d | | d | d d !� \ } } } | | d @d >7} | | d @d >7} | j t | d ?t | d ?d @t | d ?d @t | d ?t | d ?d @t | d ?d @t | d ?t | d @g � qS Wt j | � } | d k rK| d d S| d k rc| d d S| d k r{| d d S| d k r�| d d S| S( sc Encode a string using Base32. s is the string to encode. The encoded string is returned. i s i s !HHBi i i i i i i i i i����s ======i����s ====i����s ===i i����t =( t divmodt lent ranget structt unpackt extendt _b32tabt EMPTYSTRINGR ( R t partst quantat leftovert it c1t c2t c3R ( ( s /usr/lib64/python2.7/base64.pyR � s6 . c C s t t | � d � \ } } | r0 t d � � n | rX | j t j d d | � � } n | rm | j � } n d } t j d | � } | r� t | j d � � } | d k r� | | } q� n g } d } d } x� | D]� } t j | � } | d k rt d � � n | t | | >7} | d 8} | d k r� | j t j d | � � d } d } q� q� Wt j d | � } | d k r�d } np | d k r�| d } nW | d k r�| d } n> | d k r�| d } n% | d k r�| d } n t d � � | j | � t j | � S( sG Decode a Base32 encoded string. s is the string to decode. Optional casefold is a flag specifying whether a lowercase alphabet is acceptable as input. For security purposes, the default is False. RFC 3548 allows for optional mapping of the digit 0 (zero) to the letter O (oh), and for optional mapping of the digit 1 (one) to either the letter I (eye) or letter L (el). The optional argument map01 when not None, specifies which letter the digit 1 should be mapped to (when map01 is not None, the digit 0 is always mapped to the letter O). For security purposes the default is None, so that 0 and 1 are not allowed in the input. The decoded string is returned. A TypeError is raised if s were incorrectly padded or if there are non-alphabet characters present in the string. i s Incorrect paddingt 01R; i s (?P<pad>[=]*)$t padi# s Non-base32 digit foundi s %010xR i i����i i����i i����i i����N( RG RH R" R R R t uppert ret searcht groupt _b32revt getR t appendR t unhexlifyRN R ( R t casefoldt map01RP RQ t padcharst moRO t acct shiftt ct valt last( ( s /usr/lib64/python2.7/base64.pyR � sP " c C s t j | � j � S( sc Encode a string using Base16. s is the string to encode. The encoded string is returned. ( R t hexlifyRX ( R ( ( s /usr/lib64/python2.7/base64.pyR s c C sC | r | j � } n t j d | � r6 t d � � n t j | � S( su Decode a Base16 encoded string. s is the string to decode. Optional casefold is a flag specifying whether a lowercase alphabet is acceptable as input. For security purposes, the default is False. The decoded string is returned. A TypeError is raised if s is incorrectly padded or if there are non-alphabet characters present in the string. s [^0-9A-F]s Non-base16 digit found( RX RY RZ R" R R_ ( R R` ( ( s /usr/lib64/python2.7/base64.pyR s iL c C s� x� t r� | j t � } | s" Pn xC t | � t k rg | j t t | � � } | sZ Pn | | 7} q% Wt j | � } | j | � q Wd S( s Encode a file.N( t Truet readt MAXBINSIZERH R R t write( t inputt outputR t nst line( ( s /usr/lib64/python2.7/base64.pyR $ s c C sC x< t r> | j � } | s Pn t j | � } | j | � q Wd S( s Decode a file.N( Rj t readlineR R Rm ( Rn Ro Rq R ( ( s /usr/lib64/python2.7/base64.pyR 3 s c C s] g } xG t d t | � t � D]- } | | | t !} | j t j | � � q Wd j | � S( s4 Encode a string into multiple lines of base-64 data.i R ( RI RH Rl R^ R R R ( R t piecesRR t chunk( ( s /usr/lib64/python2.7/base64.pyR = s c C s t j | � S( s Decode a string.( R R ( R ( ( s /usr/lib64/python2.7/base64.pyR F s c C sQ d d l } d d l } y# | j | j d d � \ } } WnD | j k r� } | j | _ | GHd | j d GH| j d � n Xt } xj | D]b \ } } | d k r� t } n | d k r� t } n | d k r� t } n | d k r� t � d Sq� W| r:| d d k r:t | d d � � } | | | j � Wd QXn | | j | j � d S( s Small test programi����Ni t deuts� usage: %s [-d|-e|-u|-t] [file|-] -d, -u: decode -e: encode (default) -t: encode and decode string 'Aladdin:open sesame'i i s -es -ds -us -tt -t rb( t syst getoptt argvt errort stderrt stdoutt exitR R t test1t opent stdin( Rx Ry t optst argsR# t funct ot at f( ( s /usr/lib64/python2.7/base64.pyt testM s. # c C s5 d } t | � } t | � } | Gt | � G| GHd S( Ns Aladdin:open sesame( R R t repr( t s0t s1t s2( ( s /usr/lib64/python2.7/base64.pyR g s t __main__(- t __doc__RY RJ R R t __all__RI t _xt chrR RN R R R R R R R R$ R% R R t _b32alphabetR RM t sortR R t dictt longR\ R t FalseR R R t MAXLINESIZERl R R R R R� R t __name__( ( ( s /usr/lib64/python2.7/base64.pyt <module> s` % 7 *J
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