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s� Manage HTTP Response Headers
Much of this module is red-handedly pilfered from email.message in the stdlib,
so portions are Copyright (C) 2001,2002 Python Software Foundation, and were
written by Barry Warsaw.
i����( t ListTypet TupleTypeNs [ \(\)<>@,;:\\"/\[\]\?=]i c C sx | d k rp t | � d k rp | s3 t j | � r_ | j d d � j d d � } d | | f Sd | | f Sn | Sd S( s~ Convenience function to format and return a key=value pair.
This will quote the value if needed or if quote is true.
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� Z d � Z d � Z RS( s, Manage a collection of HTTP response headersc C s. t | � t k r! t d � � n | | _ d S( Ns+ Headers must be a list of name/value tuples( t typeR t TypeErrort _headers( t selft headers( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt __init__" s c C s
t | j � S( s9 Return the total number of headers, including duplicates.( R R ( R ( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt __len__' s c C s! | | =| j j | | f � d S( s Set the value of a header.N( R t append( R t namet val( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt __setitem__+ s c C sF | j � } g | j D]" } | d j � | k r | ^ q | j (d S( sy Delete all occurrences of a header, if present.
Does *not* raise an exception if the header is missing.
i N( t lowerR ( R R t kv( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt __delitem__0 s c C s
| j | � S( sH Get the first header value for 'name'
Return None if the header is missing instead of raising an exception.
Note that if the header appeared multiple times, the first exactly which
occurrance gets returned is undefined. Use getall() to get all
the values matching a header field name.
( t get( R R ( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt __getitem__8 s c C s | j | � d k S( s/ Return true if the message contains the header.N( R R ( R R ( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt has_keyC s c C s@ | j � } g | j D]& } | d j � | k r | d ^ q S( sq Return a list of all the values for the named field.
These will be sorted in the order they appeared in the original header
list or were added to this instance, and may contain duplicates. Any
fields deleted and re-inserted are always appended to the header list.
If no fields exist with the given name, returns an empty list.
i i ( R R ( R R R ( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt get_allJ s c C s@ | j � } x- | j D]" \ } } | j � | k r | Sq W| S( s: Get the first header value for 'name', or return 'default'( R R ( R R t defaultt kt v( ( s' /usr/lib64/python2.7/wsgiref/headers.pyR V s
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S( s* Return a list of all the header field names.
These will be sorted in the order they appeared in the original header
list, or were added to this instance, and may contain duplicates.
Any fields deleted and re-inserted are always appended to the header
list.
( R ( R R R! ( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt keys_ s c C s g | j D] \ } } | ^ q
S( s! Return a list of all header values.
These will be sorted in the order they appeared in the original header
list, or were added to this instance, and may contain duplicates.
Any fields deleted and re-inserted are always appended to the header
list.
( R ( R R R! ( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt valuesi s c C s | j S( s Get all the header fields and values.
These will be sorted in the order they were in the original header
list, or were added to this instance, and may contain duplicates.
Any fields deleted and re-inserted are always appended to the header
list.
( R ( R ( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt itemss s c C s d | j S( Ns Headers(%r)( R ( R ( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt __repr__} s c C s1 d j g | j D] } d | ^ q d d g � S( sk str() returns the formatted headers, complete with end line,
suitable for direct HTTP transmission.s
s %s: %st ( t joinR ( R R ( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt __str__� s c C s= | j | � } | d k r5 | j j | | f � | S| Sd S( s� Return first matching header value for 'name', or 'value'
If there is no header named 'name', add a new header with name 'name'
and value 'value'.N( R R R R ( R R R t result( ( s' /usr/lib64/python2.7/wsgiref/headers.pyt
setdefault� s
c K s� g } | d k r" | j | � n xd | j � D]V \ } } | d k rc | j | j d d � � q/ | j t | j d d � | � � q/ W| j j | d j | � f � d S( sf Extended header setting.
_name is the header field to add. keyword arguments can be used to set
additional parameters for the header field, with underscores converted
to dashes. Normally the parameter will be added as key="value" unless
value is None, in which case only the key will be added.
Example:
h.add_header('content-disposition', 'attachment', filename='bud.gif')
Note that unlike the corresponding 'email.message' method, this does
*not* handle '(charset, language, value)' tuples: all values must be
strings or None.
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