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d d Z d Z d Z d Z d Z h d d <d d <d d <d d! <d" d# <d$ d% <d& d' <d( d) <d* d+ <d, d- <d. d/ <d0 d1 <d2 d3 <d4 d5 <d6 d7 <d8 d9 <d: d; <d< d= <d> d? <d@ dA <dB dC <dD dE <dF dG <dH dI <dJ dK <dL dM <dN dO <dP dQ <dR dS <dT dU <dV dW <dX dY <Z e i Z e i g Z e D] \ Z Z e e q[ Z e g Z e i D] \ Z Z e e e e f qI[ Z dZ Z e d d[ Z d\ Z! e d] Z" d^ Z# e# d; d3 Z$ d_ Z% d` Z& da Z' db Z( dc Z) dd Z* e+ de j o e) n d S(f s/ RFC 3548: Base16, Base32, Base64 Data Encodingsi˙˙˙˙Nt encodet decodet encodestringt decodestringt b64encodet b64decodet b32encodet b32decodet b16encodet b16decodet standard_b64encodet standard_b64decodet urlsafe_b64encodet urlsafe_b64decodei t c C sJ t } x* | i D] \ } } | | t | <q W| i d i | S( NR ( t _translationt itemst ordt translatet join( t st altcharst translationt kt v( ( s" /usr/local/lib/python2.5/base64.pyt
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c C sO t i | d } | d j o+ t | h | d d <| d d < Sn | S( sl Encode a string using Base64.
s is the string to encode. 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˙˙˙˙i t +i t /N( t binasciit
b2a_base64t NoneR ( R R t encoded( ( s" /usr/local/lib/python2.5/base64.pyR * s
+c C sv | d j o- t | h d | d <d | d < } n y t i | SWn$ t i j
o } 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 were
incorrectly padded or if there are non-alphabet characters present in the
string.
R i R i N( R R R t
a2b_base64t Errort TypeError( R R t msg( ( s" /usr/local/lib/python2.5/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/local/lib/python2.5/base64.pyR
O s c C s
t | S( s Decode a string encoded with the standard Base64 alphabet.
s is the string to decode. The decoded string is returned. A TypeError
is raised if the string is incorrectly padded or if there are non-alphabet
characters present in the string.
( R ( R ( ( s" /usr/local/lib/python2.5/base64.pyR V s c C s
t | d S( sš Encode a string using a url-safe Base64 alphabet.
s is the string to encode. The encoded string is returned. The alphabet
uses '-' instead of '+' and '_' instead of '/'.
s -_( R ( R ( ( s" /usr/local/lib/python2.5/base64.pyR _ s c C s
t | d S( sD Decode a string encoded with the standard Base64 alphabet.
s is the string to decode. The decoded string is returned. A TypeError
is raised if the string is incorrectly padded or if there are non-alphabet
characters present in the string.
The alphabet uses '-' instead of '+' and '_' instead of '/'.
s -_( R ( R ( ( s" /usr/local/lib/python2.5/base64.pyR
g 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 \ } } | o | d d | 7} | d 7} n xŰ t | D]Í } t i d | | d | d d ! \ } } } | | d @d >7} | | d @d >7} | i t | d ?t | d ?d
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@g qU Wt i | } | d j o | d d SnX | d
j o | d d Sn; | d j o | d d Sn | d j o | d d Sn | S( sc Encode a string using Base32.
s is the string to encode. The encoded string is returned.
i t i s !HHBi i i i i i i i i iú˙˙˙s ======iü˙˙˙s ====iý˙˙˙s ===i i˙˙˙˙t =( t divmodt lent ranget structt unpackt extendt _b32tabt EMPTYSTRINGR ( R t partst quantat leftovert it c1t c2t c3R ( ( s" /usr/local/lib/python2.5/base64.pyR s8
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} ny | d j o | d } n^ | d j o | d } nC | d j o | d } n( | d j o | d } n
t d | i | t i | 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 paddingR9 t 0t 1i s (?P<pad>[=]*)$t padi# s Non-base32 digit foundi s %010xR i i˙˙˙˙i iţ˙˙˙i iý˙˙˙i iü˙˙˙N( RF RG R" R t uppert ret searcht groupt _b32revt getR t appendR t unhexlifyRM R (
R t casefoldt map01RO RP t padcharst moRN t acct shiftt ct valt last( ( s" /usr/local/lib/python2.5/base64.pyR ą sR %
c C s t i | i S( sc Encode a string using Base16.
s is the string to encode. The encoded string is returned.
( R t hexlifyRX ( R ( ( s" /usr/local/lib/python2.5/base64.pyR ű s c C sG | o | i } n t i d | o t d n t i | S( sw 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 were
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/local/lib/python2.5/base64.pyR s
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| i t } | p Pn xG t | t j o3 | i t t | } | p Pn | | 7} q( Wt i | } | i | q Wd S( s Encode a file.N( t Truet readt
MAXBINSIZERG R R t write( t inputt outputR t nst line( ( s" /usr/local/lib/python2.5/base64.pyR s c C sG x@ t o8 | i } | p Pn t i | } | i | q Wd S( s Decode a file.N( Rj t readlineR R Rm ( Rn Ro Rq R ( ( s" /usr/local/lib/python2.5/base64.pyR , s c C s] g } xG t d t | t D]- } | | | t !} | i t i | q Wd i | S( s Encode a string.i R ( RH RG Rl R^ R R R ( R t piecesRQ t chunk( ( s" /usr/local/lib/python2.5/base64.pyR 6 s c C s
t i | S( s Decode a string.( R R ( R ( ( s" /usr/local/lib/python2.5/base64.pyR ? s c C sR d d k } d d k } y# | i | i d d \ } } WnF | i j
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| i n | | i | i 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 a( ( s" /usr/local/lib/python2.5/base64.pyt testF 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/local/lib/python2.5/base64.pyR _ s t __main__(, t __doc__RY RI R t __all__t _[1]RH t _xt chrR RM R R R R R
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t _b32alphabetR RL t sortt _[2]R R t dictt _[3]t longR\ R t FalseR R R t MAXLINESIZERl R R R R R R t __name__( ( ( s" /usr/local/lib/python2.5/base64.pys <module> sZ -
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