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join_bytest join_byte_valuest join_byte_elemst iranget imapt PY3t ut join_unicodet unicodet byte_elem_valuet
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getrandstrt generate_passwordt is_crypt_handlert is_crypt_contextt has_rounds_infot
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SequenceMixinc B sM e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z RS( s�
helper which lets result object act like a fixed-length sequence.
subclass just needs to provide :meth:`_as_tuple()`.
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helper to update mixin classes installed in target class.
:param target:
target class whose bases will be modified.
:param add:
class / classes to install into target's base class list.
:param remove:
class / classes to remove from target's base class list.
:param append:
by default, prepends mixins to front of list.
if True, appends to end of list instead.
:param after:
optionally make sure all mixins are inserted after
this class / classes.
:param before:
optionally make sure all mixins are inserted before
this class / classes.
:param dryrun:
optionally perform all calculations / raise errors,
but don't actually modify the class.
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split iterable into chunks of <size> elements.
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c C s5 t | t � r6 t | t � s- t d � � n t } nB t | t � rl t | t � sc t d � � n t } n t d � � t | � t | � k } | r� | } d } n | s� | } d } n | r� xh t | | � D] \ } } | | | AO} q� Wn: x7 t | | � D]& \ } } | t | � t | � AO} qW| d k S( s� Check two strings/bytes for equality.
This function uses an approach designed to prevent
timing analysis, making it appropriate for cryptography.
a and b must both be of the same type: either str (ASCII only),
or any type that supports the buffer protocol (e.g. bytes).
Note: If a and b are of different lengths, or if an error occurs,
a timing attack could theoretically reveal information about the
types and lengths of a and b--but not their values.
s) inputs must be both unicode or both bytesi i ( Rz R% R� Re t bytesR" RZ t zipt ord( t leftt rightt is_py3_bytest same_sizet tmpt resultt lt r( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR. / s, ( t compare_digestt ,c C sX | j � } | j | � r( | d } n | s2 g Sg | j | � D] } | j � ^ qB S( sR split comma-separated string into list of elements,
stripping whitespace.
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| � rmt d | � � n | | � r t d | � � q q W| S( s Normalizes unicode strings using SASLPrep stringprep profile.
The SASLPrep profile is defined in :rfc:`4013`.
It provides a uniform scheme for normalizing unicode usernames
and passwords before performing byte-value sensitive operations
such as hashing. Among other things, it normalizes diacritic
representations, removes non-printing characters, and forbids
invalid characters such as ``\n``. Properly internationalized
applications should run user passwords through this function
before hashing.
:arg source:
unicode string to normalize & validate
:param param:
Optional noun identifying source parameter in error messages
(Defaults to the string ``"value"``). This is mainly useful to make the caller's error
messages make more sense contextually.
:raises ValueError:
if any characters forbidden by the SASLPrep profile are encountered.
:raises TypeError:
if input is not :class:`!unicode`
:returns:
normalized unicode string
.. note::
This function is not available under Jython,
as the Jython stdlib is missing the :mod:`!stringprep` module
(`Jython issue 1758320 <http://bugs.jython.org/issue1758320>`_).
.. versionadded:: 1.6
s$ input must be unicode string, not %sc 3 s3 | ]) } � | � s � | � r' t n | Vq d S( N( t _USPACE( Rw t c( t in_table_b1t in_table_c12( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pys <genexpr>� s t NFKCi i����s malformed bidi sequence in s$ failed to strip B.1 in mapping stages( failed to replace C.1.2 in mapping stages$ unassigned code points forbidden in s control characters forbidden in s$ private use characters forbidden in s" non-char code points forbidden in s surrogate codes forbidden in s! non-plaintext chars forbidden in s! non-canonical chars forbidden in s1 display-modifying / deprecated chars forbidden ins tagged characters forbidden in s forbidden bidi character in ( Rz R% R� R{ t
stringprepR� R� R$ t unicodedatat normalizet _UEMPTYt in_table_d1R� t in_table_d2t in_table_a1t in_table_c21_c22t in_table_c3t in_table_c4t in_table_c5t in_table_c6t in_table_c7t in_table_c8t in_table_c9R� ( R� t paramt datat is_ral_chart is_forbidden_bidi_charR� R� R� R� R� R� R� R� R� R� ( ( R� R� s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR/ � sf ,
c C s t d t � � d S( s stub for saslprep()s> saslprep() support requires the 'stringprep' module, which is N( t NotImplementedErrort _stringprep_missing_reason( R� R� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR/ s c G sH t | t � r! | j d � } n | t d � | D� � } | j d � S( s& Peform ``%`` formating using bytes in a uniform manner across Python 2/3.
This function is motivated by the fact that
:class:`bytes` instances do not support ``%`` or ``{}`` formatting under Python 3.
This function is an attempt to provide a replacement:
it converts everything to unicode (decoding bytes instances as ``latin-1``),
performs the required formatting, then encodes the result to ``latin-1``.
Calling ``render_bytes(source, *args)`` should function roughly the same as
``source % args`` under Python 2.
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t c C s^ t | � } | | k rR | d k rB t | t � r9 t n t } n | | | | S| | Sd S( s> right-pad or truncate <source> string, so it has length <size>N( RZ Rt Rz R% t _UNULLt _BNULL( R� R� t padR� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyt right_pad_stringA s t
aA:#!t asciic C s t j | � t k S( sR Test if codec is compatible with 7-bit ascii (e.g. latin-1, utf-8; but not utf-16)( t _ASCII_TEST_UNICODER� t _ASCII_TEST_BYTES( t codec( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyt is_ascii_codecQ s c C s< | | k r t S| o | s t St | � j t | � j k S( s3 Check if two codec names are aliases for same codec( Ri Re t
_lookup_codect name( R� R� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR2 U s
s �i c s5 t | t � r t n t � t � f d � | D� � S( s< Check if string (bytes or unicode) contains only 7-bit asciic 3 s | ] } | � k Vq d S( N( ( Rw R� ( R� ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pys <genexpr>b s ( Rz R� t _B80t _U80t all( R� ( ( R� s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR3 _ s s utf-8c C s} | s t � t | t � rN | rG t | | � rG | j | � j | � S| Sn+ t | t � rj | j | � St | | � � d S( s Helper to normalize input to bytes.
:arg source:
Source bytes/unicode to process.
:arg encoding:
Target encoding (defaults to ``"utf-8"``).
:param param:
Optional name of variable/noun to reference when raising errors
:param source_encoding:
If this is specified, and the source is bytes,
the source will be transcoded from *source_encoding* to *encoding*
(via unicode).
:raises TypeError: if source is not unicode or bytes.
:returns:
* unicode strings will be encoded using *encoding*, and returned.
* if *source_encoding* is not specified, byte strings will be
returned unchanged.
* if *source_encoding* is specified, byte strings will be transcoded
to *encoding*.
N( R� Rz R� R2 R� R� R% R ( R� t encodingR� t source_encoding( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR4 d s
c C sN | s t � t | t � r | St | t � r; | j | � St | | � � d S( s� Helper to normalize input to unicode.
:arg source:
source bytes/unicode to process.
:arg encoding:
encoding to use when decoding bytes instances.
:param param:
optional name of variable/noun to reference when raising errors.
:raises TypeError: if source is not unicode or bytes.
:returns:
* returns unicode strings unchanged.
* returns bytes strings decoded using *encoding*
N( R� Rz R% R� R� R ( R� R� R� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR5 � s
c C sB t | t � r | j | � St | t � r/ | St | | � � d S( N( Rz R� R� R% R ( R� R� R� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR6 � s
c C sB t | t � r | St | t � r/ | j | � St | | � � d S( N( Rz R� R% R� R ( R� R� R� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR6 � s
s> Take in unicode or bytes, return native string.
Python 2: encodes unicode using specified encoding, leaves bytes alone.
Python 3: leaves unicode alone, decodes bytes using specified encoding.
:raises TypeError: if source is not unicode or bytes.
:arg source:
source unicode or bytes string.
:arg encoding:
encoding to use when encoding unicode or decoding bytes.
this defaults to ``"utf-8"``.
:param param:
optional name of variable/noun to reference when raising errors.
:returns: :class:`str` instance
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deprecateds 1.6t removeds 1.7c C s t | | d d �S( s' deprecated, use to_native_str() insteadR� t hash( R6 ( R� R� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyt to_hash_str� s s true t yes y on 1 enable enableds# false f no n off 0 disable disabledt nonet booleanc C s� | t t d g k s t � t | t � r� | j � j � } | t k rL t S| t k r\ t S| t
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helper to convert value to boolean.
recognizes strings such as "true", "false"
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k r� d S| S( Ns utf-8s" utf-8 spec says this can't happen!s null character in secretR� i ( Rz R� R� t UnicodeDecodeErrorRt R� R� t _NULLR� t _cryptt _invalid_prefixes( R� R� t origR� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR9 � s
c C s� t | t � r! | j d � } n t | k r< t d � � n t | t � r] | j d � } n t | | � } | sv d S| j d � } | d t k r� d S| S( Ns utf-8s null character in secretR� i ( Rz R% R� R� R� R� Rt R� R� ( R� R� R� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR9 s s� Wrapper around stdlib's crypt.
This is a wrapper around stdlib's :func:`!crypt.crypt`, which attempts
to provide uniform behavior across Python 2 and 3.
:arg secret:
password, as bytes or unicode (unicode will be encoded as ``utf-8``).
:arg hash:
hash or config string, as ascii bytes or unicode.
:returns:
resulting hash as ascii unicode; or ``None`` if the password
couldn't be hashed due to one of the issues:
* :func:`crypt()` not available on platform.
* Under Python 3, if *secret* is specified as bytes,
it must be use ``utf-8`` or it can't be passed
to :func:`crypt()`.
* Some OSes will return ``None`` if they don't recognize
the algorithm being used (though most will simply fall
back to des-crypt).
* Some OSes will return an error string if the input config
is recognized but malformed; current code converts these to ``None``
as well.
c C s% | r | s t � t | | � | k S( s� check if :func:`crypt.crypt` supports specific hash
:arg secret: password to test
:arg hash: known hash of password to use as reference
:returns: True or False
( R� R9 ( R� R� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyR8 A s t win32( t clock( t timec C sB t j d | � } | r> t d � | j d � j d � D� � Sd S( s helper to parse version strings (\d+(?:\.\d+)+)c s s | ] } t | � Vq d S( N( R� ( Rw R� ( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pys <genexpr>Y s i t .N( t ret searchR� t groupR� Rt ( R� t m( ( s: /usr/lib/python2.7/site-packages/passlib/utils/__init__.pyt
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� S( s. generate prng seed value from system resourcesi����( t sha512t getstatet getrandbitsi i s %s %s %s %.15f %.15f %st getpidi s latin-1i s utf-8i i � N( t hashlibR
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t4 2346789ABCDEFGHJKMNPQRTUVWXYZabcdefghjkmnpqrstuvwxyzs 2.0t replacements/ passlib.pwd.genword() / passlib.pwd.genphrase()i
c C s t t | | � S( sw generate random password using given length & charset
:param size:
size of password.
:param charset:
optional string specified set of characters to draw from.
the default charset contains all normal alphanumeric characters,
except for the characters ``1IiLl0OoS5``, which were omitted
due to their visual similarity.
:returns: :class:`!str` containing randomly generated password.
.. note::
Using the default character set, on a OS with :class:`!SystemRandom` support,
this function should generate passwords with 5.7 bits of entropy per character.
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