3
ûâde;*  ã               @   sà   d dl mZ yd dlmZmZ W n$ ek
rD   d dlmZmZ Y nX yd dlmZ W n" ek
rx   G dd„ dƒZY nX d dlm	Z	 ddl
mZ dd	lmZ dd
lmZmZ ddgZeƒ ZG dd„ deƒZG dd„ deƒZdS )é    )Úabsolute_import)ÚMappingÚMutableMapping)ÚRLockc               @   s   e Zd Zdd„ Zdd„ ZdS )r   c             C   s   d S )N© )Úselfr   r   ú?/tmp/pip-build-red6nood/pip/pip/_vendor/urllib3/_collections.pyÚ	__enter__   s    zRLock.__enter__c             C   s   d S )Nr   )r   Úexc_typeÚ	exc_valueÚ	tracebackr   r   r   Ú__exit__   s    zRLock.__exit__N)Ú__name__Ú
__module__Ú__qualname__r	   r   r   r   r   r   r      s   r   )ÚOrderedDicté   )ÚInvalidHeader)Úsix)ÚiterkeysÚ
itervaluesÚRecentlyUsedContainerÚHTTPHeaderDictc               @   sV   e Zd ZdZeZddd„Zdd„ Zdd	„ Zd
d„ Z	dd„ Z
dd„ Zdd„ Zdd„ ZdS )r   a‘  
    Provides a thread-safe dict-like container which maintains up to
    ``maxsize`` keys while throwing away the least-recently-used keys beyond
    ``maxsize``.

    :param maxsize:
        Maximum number of recent elements to retain.

    :param dispose_func:
        Every time an item is evicted from the container,
        ``dispose_func(value)`` is called.  Callback which will get called
    é
   Nc             C   s"   || _ || _| jƒ | _tƒ | _d S )N)Ú_maxsizeÚdispose_funcÚContainerClsÚ
_containerr   Úlock)r   Úmaxsizer   r   r   r   Ú__init__/   s    
zRecentlyUsedContainer.__init__c          
   C   s,   | j � | jj|ƒ}|| j|< |S Q R X d S )N)r   r   Úpop)r   ÚkeyÚitemr   r   r   Ú__getitem__6   s    
z!RecentlyUsedContainer.__getitem__c          
   C   sl   t }| j�@ | jj|t ƒ}|| j|< t| jƒ| jkrF| jjdd�\}}W d Q R X | jrh|t k	rh| j|ƒ d S )NF)Úlast)Ú_Nullr   r   ÚgetÚlenr   Úpopitemr   )r   r"   ÚvalueÚevicted_valueÚ_keyr   r   r   Ú__setitem__=   s    
z!RecentlyUsedContainer.__setitem__c          	   C   s2   | j � | jj|ƒ}W d Q R X | jr.| j|ƒ d S )N)r   r   r!   r   )r   r"   r*   r   r   r   Ú__delitem__L   s    z!RecentlyUsedContainer.__delitem__c          	   C   s   | j � t| jƒS Q R X d S )N)r   r(   r   )r   r   r   r   Ú__len__S   s    zRecentlyUsedContainer.__len__c             C   s   t dƒ‚d S )Nz7Iteration over this class is unlikely to be threadsafe.)ÚNotImplementedError)r   r   r   r   Ú__iter__W   s    zRecentlyUsedContainer.__iter__c          
   C   sL   | j � tt| jƒƒ}| jjƒ  W d Q R X | jrHx|D ]}| j|ƒ q6W d S )N)r   Úlistr   r   Úclearr   )r   Úvaluesr*   r   r   r   r3   \   s    
zRecentlyUsedContainer.clearc          
   C   s    | j � tt| jƒƒS Q R X d S )N)r   r2   r   r   )r   r   r   r   Úkeysf   s    zRecentlyUsedContainer.keys)r   N)r   r   r   Ú__doc__r   r   r    r$   r-   r.   r/   r1   r3   r5   r   r   r   r   r      s   

c                   sö   e Zd ZdZd-‡ fdd„	Zdd„ Zdd„ Zd	d
„ Zdd„ Zdd„ Z	dd„ Z
ejr\ejZejZeƒ Zdd„ Zdd„ Zefdd„Zdd„ Zdd„ Zdd„ Zefdd„ZeZeZeZeZdd „ Zd!d"„ Zd#d$„ Zd%d&„ Z d'd(„ Z!d)d*„ Z"e#d+d,„ ƒZ$‡  Z%S ).r   ap  
    :param headers:
        An iterable of field-value pairs. Must not contain multiple field names
        when compared case-insensitively.

    :param kwargs:
        Additional field-value pairs to pass in to ``dict.update``.

    A ``dict`` like container for storing HTTP Headers.

    Field names are stored and compared case-insensitively in compliance with
    RFC 7230. Iteration provides the first case-sensitive key seen for each
    case-insensitive pair.

    Using ``__setitem__`` syntax overwrites fields that compare equal
    case-insensitively in order to maintain ``dict``'s api. For fields that
    compare equal, instead create a new ``HTTPHeaderDict`` and use ``.add``
    in a loop.

    If multiple fields that are equal case-insensitively are passed to the
    constructor or ``.update``, the behavior is undefined and some will be
    lost.

    >>> headers = HTTPHeaderDict()
    >>> headers.add('Set-Cookie', 'foo=bar')
    >>> headers.add('set-cookie', 'baz=quxx')
    >>> headers['content-length'] = '7'
    >>> headers['SET-cookie']
    'foo=bar, baz=quxx'
    >>> headers['Content-Length']
    '7'
    Nc                sP   t t| ƒjƒ  tƒ | _|d k	r>t|tƒr4| j|ƒ n
| j|ƒ |rL| j|ƒ d S )N)Úsuperr   r    r   r   Ú
isinstanceÚ
_copy_fromÚextend)r   ÚheadersÚkwargs)Ú	__class__r   r   r    �   s    

zHTTPHeaderDict.__init__c             C   s    ||g| j |jƒ < | j |jƒ  S )N)r   Úlower)r   r"   Úvalr   r   r   r-   ˜   s    zHTTPHeaderDict.__setitem__c             C   s    | j |jƒ  }dj|dd … ƒS )Nz, r   )r   r>   Újoin)r   r"   r?   r   r   r   r$   œ   s    zHTTPHeaderDict.__getitem__c             C   s   | j |jƒ = d S )N)r   r>   )r   r"   r   r   r   r.       s    zHTTPHeaderDict.__delitem__c             C   s   |j ƒ | jkS )N)r>   r   )r   r"   r   r   r   Ú__contains__£   s    zHTTPHeaderDict.__contains__c             C   sb   t |tƒ rt|dƒ rdS t |t| ƒƒs6t| ƒ|ƒ}tdd„ | jƒ D ƒƒtdd„ |jƒ D ƒƒkS )Nr5   Fc             s   s   | ]\}}|j ƒ |fV  qd S )N)r>   )Ú.0ÚkÚvr   r   r   ú	<genexpr>«   s    z(HTTPHeaderDict.__eq__.<locals>.<genexpr>c             s   s   | ]\}}|j ƒ |fV  qd S )N)r>   )rB   rC   rD   r   r   r   rE   ¬   s    )r8   r   ÚhasattrÚtypeÚdictÚ
itermerged)r   Úotherr   r   r   Ú__eq__¦   s    zHTTPHeaderDict.__eq__c             C   s   | j |ƒ S )N)rK   )r   rJ   r   r   r   Ú__ne__¯   s    zHTTPHeaderDict.__ne__c             C   s
   t | jƒS )N)r(   r   )r   r   r   r   r/   ¸   s    zHTTPHeaderDict.__len__c             c   s"   x| j jƒ D ]}|d V  qW d S )Nr   )r   r4   )r   Úvalsr   r   r   r1   »   s    zHTTPHeaderDict.__iter__c             C   s<   y| | }W n  t k
r,   || jkr(‚ |S X | |= |S dS )z§D.pop(k[,d]) -> v, remove specified key and return the corresponding value.
        If key is not found, d is returned if given, otherwise KeyError is raised.
        N)ÚKeyErrorÚ_HTTPHeaderDict__marker)r   r"   Údefaultr*   r   r   r   r!   À   s    
zHTTPHeaderDict.popc             C   s$   y
| |= W n t k
r   Y nX d S )N)rN   )r   r"   r   r   r   ÚdiscardÑ   s    
zHTTPHeaderDict.discardc             C   s4   |j ƒ }||g}| jj||ƒ}||k	r0|j|ƒ dS )zâAdds a (name, value) pair, doesn't overwrite the value if it already
        exists.

        >>> headers = HTTPHeaderDict(foo='bar')
        >>> headers.add('Foo', 'baz')
        >>> headers['foo']
        'bar, baz'
        N)r>   r   Ú
setdefaultÚappend)r   r"   r?   Ú	key_lowerÚnew_valsrM   r   r   r   Úadd×   s
    	zHTTPHeaderDict.addc             O   s   t |ƒdkrtdjt |ƒƒƒ‚t |ƒdkr2|d nf }t|tƒrdx˜|jƒ D ]\}}| j||ƒ qJW nvt|tƒrŽxj|D ]}| j||| ƒ qtW nLt|dƒr¼x@|j	ƒ D ]}| j||| ƒ q¢W nx|D ]\}}| j||ƒ qÂW x |j
ƒ D ]\}}| j||ƒ qäW dS )zÀGeneric import function for any type of header-like object.
        Adapted version of MutableMapping.update in order to insert items
        with self.add instead of self.__setitem__
        r   z9extend() takes at most 1 positional arguments ({0} given)r   r5   N)r(   Ú	TypeErrorÚformatr8   r   Ú	iteritemsrV   r   rF   r5   Úitems)r   Úargsr<   rJ   r"   r?   r*   r   r   r   r:   ç   s$    



zHTTPHeaderDict.extendc             C   sF   y| j |jƒ  }W n" tk
r4   || jkr0g S |S X |dd… S dS )zmReturns a list of all the values for the named field. Returns an
        empty list if the key doesn't exist.r   N)r   r>   rN   rO   )r   r"   rP   rM   r   r   r   Úgetlist  s    
zHTTPHeaderDict.getlistc             C   s   dt | ƒjt| jƒ ƒf S )Nz%s(%s))rG   r   rH   rI   )r   r   r   r   Ú__repr__  s    zHTTPHeaderDict.__repr__c             C   sB   x<|D ]4}|j |ƒ}t|tƒr&t|ƒ}|g| | j|jƒ < qW d S )N)r\   r8   r2   r   r>   )r   rJ   r"   r?   r   r   r   r9     s
    


zHTTPHeaderDict._copy_fromc             C   s   t | ƒƒ }|j| ƒ |S )N)rG   r9   )r   Úcloner   r   r   Úcopy"  s    

zHTTPHeaderDict.copyc             c   sD   x>| D ]6}| j |jƒ  }x"|dd… D ]}|d |fV  q&W qW dS )z8Iterate over all header lines, including duplicate ones.r   Nr   )r   r>   )r   r"   rM   r?   r   r   r   rY   '  s    
zHTTPHeaderDict.iteritemsc             c   s<   x6| D ].}| j |jƒ  }|d dj|dd… ƒfV  qW dS )z:Iterate over all headers, merging duplicate ones together.r   z, r   N)r   r>   r@   )r   r"   r?   r   r   r   rI   .  s    
zHTTPHeaderDict.itermergedc             C   s   t | jƒ ƒS )N)r2   rY   )r   r   r   r   rZ   4  s    zHTTPHeaderDict.itemsc             C   s„   d}g }xr|j D ]h}|j|ƒrV|s0td| ƒ‚n&|d \}}||d |jƒ  f|d< q|jddƒ\}}|j||jƒ fƒ qW | |ƒS )	z4Read headers from a Python 2 httplib message object.ú ú	z/Header continuation with no previous header: %sr   ú:)r`   ra   éÿÿÿÿrc   )r;   Ú
startswithr   ÚstripÚsplitrS   )ÚclsÚmessageZobs_fold_continued_leadersr;   Úliner"   r*   r   r   r   Úfrom_httplib7  s    
zHTTPHeaderDict.from_httplib)N)&r   r   r   r6   r    r-   r$   r.   rA   rK   rL   r   ÚPY2r   r   r   ÚobjectrO   r/   r1   r!   rQ   rV   r:   r\   Ú
getheadersÚgetallmatchingheadersÚigetÚget_allr]   r9   r_   rY   rI   rZ   Úclassmethodrj   Ú__classcell__r   r   )r=   r   r   k   s<    	N)Ú
__future__r   Úcollections.abcr   r   ÚImportErrorÚcollectionsÚ	threadingr   r   Ú
exceptionsr   Úpackagesr   Zpackages.sixr   r   Ú__all__rl   r&   r   r   r   r   r   r   Ú<module>   s    L