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� ~�Sc @ s[ d Z d d l Z d d l Z d d l Z d d l Z y d d l m Z Wn! e k rm d d l m Z n Xd d l m Z m Z m Z m Z m Z m Z d d l m Z m Z m Z e j d d5 � Z e j d � Z e j d � Z d6 Z d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ e d � Z e d � Z d � Z d! � Z! d" � Z" d d# � Z$ d$ � Z% d% d& � Z& d' d( � Z' e( d) � Z) e( e( d* � Z* e+ d+ � Z, d, � Z- d- e. f d. � � YZ/ d/ e f d0 � � YZ0 d d1 l1 m2 Z2 m3 Z3 m4 Z4 d d2 l5 m6 Z6 m7 Z7 m8 Z8 m9 Z9 d d3 l1 m: Z: m; Z; d S(7 s� werkzeug.utils ~~~~~~~~~~~~~~ This module implements various utilities for WSGI applications. Most of them are used by the request and response wrappers but especially for middleware development it makes sense to use them without the wrappers. :copyright: (c) 2014 by the Werkzeug Team, see AUTHORS for more details. :license: BSD, see LICENSE for more details. i����N( t name2codepoint( t unichrt text_typet string_typest iteritemst reraiset PY2( t _DictAccessorPropertyt _parse_signaturet _missings \$(?:(%s)|\{(%s)\})s [a-zA-Z_][a-zA-Z0-9_]*i s &([^;]+);s [^A-Za-z0-9_.-]t CONt AUXt COM1t COM2t COM3t COM4t LPT1t LPT2t LPT3t PRNt NULt cached_propertyc B s) e Z d Z d d d � Z d d � Z RS( s� A decorator that converts a function into a lazy property. The function wrapped is called the first time to retrieve the result and then that calculated result is used the next time you access the value:: class Foo(object): @cached_property def foo(self): # calculate something important here return 42 The class has to have a `__dict__` in order for this property to work. c C s= | p | j | _ | j | _ | p* | j | _ | | _ d S( N( t __name__t __module__t __doc__t func( t selfR t namet doc( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt __init__< s c C sZ | d k r | S| j j | j t � } | t k rV | j | � } | | j | j <n | S( N( t Nonet __dict__t getR R R ( R t objt typet value( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt __get__B s N( R R R R R R$ ( ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR # s t environ_propertyc B s e Z d Z e Z d � Z RS( s� Maps request attributes to environment variables. This works not only for the Werzeug request object, but also any other class with an environ attribute: >>> class Test(object): ... environ = {'key': 'value'} ... test = environ_property('key') >>> var = Test() >>> var.test 'value' If you pass it a second value it's used as default if the key does not exist, the third one can be a converter that takes a value and converts it. If it raises :exc:`ValueError` or :exc:`TypeError` the default value is used. If no default value is provided `None` is used. Per default the property is read only. You have to explicitly enable it by passing ``read_only=False`` to the constructor. c C s | j S( N( t environ( R R! ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt lookupc s ( R R R t Truet read_onlyR' ( ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR% L s t header_propertyc B s e Z d Z d � Z RS( s( Like `environ_property` but for headers.c C s | j S( N( t headers( R R! ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR' j s ( R R R R' ( ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR* g s t HTMLBuilderc B s� e Z d Z e j d � Z e j � Z d e d <e d d d d d d d d d d d d d d d d d d g � Z e d d d d d d d d d d d d! g � Z e d" g � Z e d# d$ g � Z d% � Z d& � Z d' � Z d( � Z RS() s� Helper object for HTML generation. Per default there are two instances of that class. The `html` one, and the `xhtml` one for those two dialects. The class uses keyword parameters and positional parameters to generate small snippets of HTML. Keyword parameters are converted to XML/SGML attributes, positional arguments are used as children. Because Python accepts positional arguments before keyword arguments it's a good idea to use a list with the star-syntax for some children: >>> html.p(class_='foo', *[html.a('foo', href='foo.html'), ' ', ... html.a('bar', href='bar.html')]) u'<p class="foo"><a href="foo.html">foo</a> <a href="bar.html">bar</a></p>' This class works around some browser limitations and can not be used for arbitrary SGML/XML generation. For that purpose lxml and similar libraries exist. Calling the builder escapes the string passed: >>> html.p(html("<foo>")) u'<p><foo></p>' s &([^;]+);i' t apost areat baset basefontt brt colt commandt embedt framet hrt imgt inputt keygent isindext linkt metat paramt sourcet wbrt selectedt checkedt compactt declaret defert disabledt ismapt multiplet nohreft noresizet noshadet nowrapt textareat scriptt stylec C s | | _ d S( N( t _dialect( R t dialect( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR � s c C s t | � S( N( t escape( R t s( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt __call__� s c s5 � d d k r t � � � n � � f d � } | S( Ni t __c s� d � } x� t | � D]� \ } } | d k r5 q n | d d k rR | d } n | � j k r� | sm q n � j d k r� d | d } q� d } n d t | � d } | d | | 7} q W| r � � j k r � j d k r� | d 7} n | d 7} | S| d 7} d j g | D] } | d k rt | � ^ q� } | r�� � j k rbt | � } q�� � j k r�� j d k r�d | d } q�n | | d � d 7} | S( Nt <i����t _t xhtmls ="t "t t s />t >s /*<![CDATA[*/s /*]]>*/s </( R R t _boolean_attributesRO RQ t _empty_elementst joinR t _plaintext_elementst _c_like_cdata( t childrent argumentst buffert keyR# t xt children_as_string( R t tag( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt proxy� s: ! ( t AttributeError( R Rg Rh ( ( R Rg s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt __getattr__� s $c C s d | j j | j f S( Ns <%s for %r>( t __class__R RO ( R ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt __repr__� s ( R R R t ret compilet _entity_reR t copyt _entitiest setR] R\ R_ R` R RS Rj Rl ( ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR, n s" )t htmlRW c C sN | j d � s9 | d k s9 | j d � rJ | j d � rJ | d | 7} n | S( s| Return the full content type string with charset for a mimetype. If the mimetype represents text the charset will be appended as charset parameter, otherwise the mimetype is returned unchanged. :param mimetype: the mimetype to be used as content type. :param charset: the charset to be appended in case it was a text mimetype. :return: the content type. s text/s application/xmls application/s +xmls ; charset=( t startswitht endswith( t mimetypet charset( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt get_content_type� s c s" � � f d � } t j | � � S( sX String-template format a string: >>> format_string('$foo and ${foo}s', dict(foo=42)) '42 and 42s' This does not do any attribute lookup etc. For more advanced string formattings have a look at the `werkzeug.template` module. :param string: the format string. :param context: a dict with the variables to insert. c sJ � | j d � p | j d � } t | t � sF t � � | � } n | S( Ni i ( t groupt isinstanceR R" ( t matchRe ( t contextt string( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt lookup_arg� s "( t _format_ret sub( R} R| R~ ( ( R| R} s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt format_string� s c C s t | t � rU d d l m } | d | � j d d � } t sU | j d � } qU n x; t j j t j j f D]! } | rn | j | d � } qn qn Wt t j d d j | j � � � � j d � } t j d k r| r| j d � d j � t k rd | } n | S( si Pass it a filename and it will return a secure version of it. This filename can then safely be stored on a regular file system and passed to :func:`os.path.join`. The filename returned is an ASCII only string for maximum portability. On windows system the function also makes sure that the file is not named after one of the special device files. >>> secure_filename("My cool movie.mov") 'My_cool_movie.mov' >>> secure_filename("../../../etc/passwd") 'etc_passwd' >>> secure_filename(u'i contain cool \xfcml\xe4uts.txt') 'i_contain_cool_umlauts.txt' The function might return an empty filename. It's your responsibility to ensure that the filename is unique and that you generate random filename if the function returned an empty one. .. versionadded:: 0.5 :param filename: the filename to secure i����( t normalizet NFKDt asciit ignoreRZ RY RV s ._t ntt .i ( Rz R t unicodedataR� t encodeR t decodet ost patht sept altsept replacet strt _filename_ascii_strip_reR� R^ t splitt stripR t uppert _windows_device_files( t filenameR� R� ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt secure_filename� s c C s� | d k r d St | d � r/ t | j � � St | t � sM t | � } n | d k r� d d l m } | t d � d d �n | j d d � j d d � j d d � j d d � } | S( s Replace special characters "&", "<", ">" and (") to HTML-safe sequences. There is a special handling for `None` which escapes to an empty string. .. versionchanged:: 0.9 `quote` is now implicitly on. :param s: the string to escape. :param quote: ignored. RY t __html__i����( t warns quote parameter is implicit nowt stackleveli t &s &RU s <R[ s >RX s "N( R t hasattrR R� Rz R t warningsR� t DeprecationWarningR� ( RR t quoteR� ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyRQ $ s c C s d � } t j | | � S( s� The reverse function of `escape`. This unescapes all the HTML entities, not only the XML entities inserted by `escape`. :param s: the string to unescape. c S s� | j d � } | t j k r/ t t j | � SyN | d d k rY t t | d d � � S| j d � r| t t | d � � SWn t k r� n Xd S( Ni i s #xs #Xi t #u ( s #xs #X( Ry R, Rq R t intRt t ValueError( t mR ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt handle_matchC s ( Ro R� ( RR R� ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt unescape= s i. c C s� d d l m } t | � } t | t � rP d d l m } | | d t �} n | d t | � | f | d d �} | | j d <| S( sW Return a response object (a WSGI application) that, if called, redirects the client to the target location. Supported codes are 301, 302, 303, 305, and 307. 300 is not supported because it's not a real redirect and 304 because it's the answer for a request with a request with defined If-Modified-Since headers. .. versionadded:: 0.6 The location can now be a unicode string that is encoded using the :func:`iri_to_uri` function. :param location: the location the response should redirect to. :param code: the redirect status code. defaults to 302. i����( t Response( t iri_to_urit safe_conversions� <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <title>Redirecting...</title> <h1>Redirecting...</h1> <p>You should be redirected automatically to target URL: <a href="%s">%s</a>. If not click the link.Rv s text/htmlt Location( t werkzeug.wrappersR� RQ Rz R t werkzeug.urlsR� R( R+ ( t locationt codeR� t display_locationR� t response( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt redirectR s i- c C sJ | d j d � d } | j d � } | r= | d | 7} n t | | � S( s, Redirect to the same URL but with a slash appended. The behavior of this function is undefined if the path ends with a slash already. :param environ: the WSGI environment for the request that triggers the redirect. :param code: the status code for the redirect. t PATH_INFOt /t QUERY_STRINGt ?( R� R R� ( R& R� t new_patht query_string( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt append_slash_redirectr s c C s2 t | � } y� d | k r6 | j d d � \ } } n1 d | k r] | j d d � \ } } n t | � St r� t | t � r� | j d � } n y# t t | d d | g � | � SWn7 t t f k r� | d | } t | � t j | SXWn? t k r-} | s.t t t | | � t j � d � q.n Xd S( sC Imports an object based on a string. This is useful if you want to use import paths as endpoints or something similar. An import path can be specified either in dotted notation (``xml.sax.saxutils.escape``) or with a colon as object delimiter (``xml.sax.saxutils:escape``). If `silent` is True the return value will be `None` if the import fails. :param import_name: the dotted name for the object to import. :param silent: if set to `True` import errors are ignored and `None` is returned instead. :return: imported object t :i R� s utf-8i N( R� R� t rsplitt __import__R Rz t unicodeR� t getattrR t ImportErrorRi t syst modulesR t ImportStringErrort exc_info( t import_namet silentt moduleR! t modnamet e( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt import_string� s* # c c s� t | � } t | d d � } | d k r= t d | � � n | j d } xq t j | � D]` \ } } } | | } | r� | r� | Vn | r� x" t | | t � D] } | Vq� Wq� qZ | VqZ Wd S( s� Find all the modules below a package. This can be useful to automatically import all views / controllers so that their metaclasses / function decorators have a chance to register themselves on the application. Packages are not returned unless `include_packages` is `True`. This can also recursively list modules but in that case it will import all the packages to get the correct load path of that module. :param import_name: the dotted name for the package to find child modules. :param include_packages: set to `True` if packages should be returned, too. :param recursive: set to `True` if recursion should happen. :return: generator t __path__s %r is not a packageR� N( R� R� R R� R t pkgutilt iter_modulest find_modulesR( ( t import_patht include_packagest recursiveR� R� t basenamet importerR� t ispkgt item( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR� � s c C s� t | � } | | | � d \ } } } } } | rI t t | � � � n( | sU | rq | rq t d | | � � n t | � | f S( s� Check if the function accepts the arguments and keyword arguments. Returns a new ``(args, kwargs)`` tuple that can safely be passed to the function without causing a `TypeError` because the function signature is incompatible. If `drop_extra` is set to `True` (which is the default) any extra positional or keyword arguments are dropped automatically. The exception raised provides three attributes: `missing` A set of argument names that the function expected but where missing. `extra` A dict of keyword arguments that the function can not handle but where provided. `extra_positional` A list of values that where given by positional argument but the function cannot accept. This can be useful for decorators that forward user submitted data to a view function:: from werkzeug.utils import ArgumentValidationError, validate_arguments def sanitize(f): def proxy(request): data = request.values.to_dict() try: args, kwargs = validate_arguments(f, (request,), data) except ArgumentValidationError: raise BadRequest('The browser failed to transmit all ' 'the data expected.') return f(*args, **kwargs) return proxy :param func: the function the validation is performed against. :param args: a tuple of positional arguments. :param kwargs: a dict of keyword arguments. :param drop_extra: set to `False` if you don't want extra arguments to be silently dropped. :return: tuple in the form ``(args, kwargs)``. i N( R t ArgumentValidationErrort tupleR ( R t argst kwargst drop_extrat parsert missingt extrat extra_positional( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt validate_arguments� s , "c C s: t | � | | � \ } } } } } } } } i } x0 t | | � D] \ \ } } } } | | | <qC W| d k r� t | � | | <n | r� t d � � n | d k r t | � t g | D] } | d ^ q� � @} | r� t d t t t | � � � � � n | | | <n+ | r6t d t t t | � � � � � n | S( s> Bind the arguments provided into a dict. When passed a function, a tuple of arguments and a dict of keyword arguments `bind_arguments` returns a dict of names as the function would see it. This can be useful to implement a cache decorator that uses the function arguments to build the cache key based on the values of the arguments. :param func: the function the arguments should be bound for. :param args: tuple of positional arguments. :param kwargs: a dict of keyword arguments. :return: a :class:`dict` of bound keyword arguments. s too many positional argumentsi s) got multiple values for keyword argument s got unexpected keyword argument N( R t zipR R� t TypeErrorRr t reprt nextt iter( R R� R� R� R� R� t arg_spect vararg_vart kwarg_vart valuesR t has_defaultt defaultR# Re t multikw( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt bind_arguments s$ -% - R� c B s e Z d Z d d d d � Z RS( s6 Raised if :func:`validate_arguments` fails to validatec C sp t | p d � | _ | p i | _ | p- g | _ t j | d t | j � t | j � t | j � f � d S( Ns8 function arguments invalid. (%d missing, %d additional)( ( Rr R� R� R� R� R t len( R R� R� R� ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR & s N( R R R R R ( ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR� # s R� c B s, e Z d Z d Z d Z d � Z d � Z RS( sB Provides information about a failed :func:`import_string` attempt.c C s | | _ | | _ d } d } g } x� | j d d � j d � D]� } | | oR d | 7} t | d t �} | r� | j | t | d d � f � q@ g | D] \ } } d | | f ^ q� } | j d | � | | d j | � | j j t | � f } Pq@ Wt j | | � d S( Ns1 import_string() failed for %r. Possible reasons are: - missing __init__.py in a package; - package or module path not included in sys.path; - duplicated package or module name taking precedence in sys.path; - missing module, class, function or variable; Debugged import: %s Original exception: %s: %sRY R� R� R� t __file__s - %r found in %r.s - %r not found.s ( R� t exceptionR� R� R� R( t appendR� R R^ Rk R R� R� R ( R R� R� t msgR t trackedt partt importedt nt it track( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR 9 s "")c C s d | j j | j | j f S( Ns <%s(%r, %r)>( Rk R R� R� ( R ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyRl W s N( R R R R R� R� R Rl ( ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyR� 1 s ( t quote_header_valuet unquote_header_valuet cookie_date( t MultiDictt CombinedMultiDictt Headerst EnvironHeaders( t parse_cookiet dump_cookie( s [a-zA-Z_][a-zA-Z0-9_]*( s [a-zA-Z_][a-zA-Z0-9_]*s [a-zA-Z_][a-zA-Z0-9_]*( R R R R R R R R R R R (< R Rm R� R� R� t html.entitiesR R� t htmlentitydefst werkzeug._compatR R R R R R t werkzeug._internalR R R Rn R Ro R� R� t objectR R% R* R, Rs RW Rx R� R� R RQ R� R� R� t FalseR� R� R( R� R� R� R� R� t werkzeug.httpR� R� R� t werkzeug.datastructuresR� R� R� R� R� R� ( ( ( s= /opt/imh-python/lib/python2.7/site-packages/werkzeug/utils.pyt <module> sJ . )_ - , 5 !, "
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