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_collections.cpython-37.pyc
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If we directly try to get an item with a particular name, we will get a string back that is the concatenated version of all the values: >>> d['X-Header-Name'] 'Value1, Value2, Value3' However, if we iterate over an HTTPHeaderDict's items, we will optionally combine these values based on whether combine=True was called when building up the dictionary >>> d = HTTPHeaderDict({"A": "1", "B": "foo"}) >>> d.add("A", "2", combine=True) >>> d.add("B", "bar") >>> list(d.items()) [ ('A', '1, 2'), ('B', 'foo'), ('B', 'bar'), ] This class conforms to the interface required by the MutableMapping ABC while also giving us the nonstandard iteration behavior we want; items with duplicate keys, ordered by time of first insertion. r �_headersr, )�headersr c C s || _ d S )N)rG )r rH r r r r/ � s z HTTPHeaderDictItemView.__init__r' )r c C s t t| j�� ��S )N)r6 r? rG � iteritems)r r r r r< � s z HTTPHeaderDictItemView.__len__z typing.Iterator[tuple[str, str]]c C s | j �� S )N)rG rI )r r r r r> � s z HTTPHeaderDictItemView.__iter__r �bool)r2 r c C sD t |t�r@t|�dkr@|\}}t |t�r@t |t�r@| j�||�S dS )N� F)r �tupler6 r rG �_has_value_for_header)r r2 Z passed_keyZ passed_valr r r � __contains__� s z#HTTPHeaderDictItemView.__contains__N) r r r rC rD r/ r< r> rN r r r r rF � s rF c s e Zd ZU dZded< dTddd�� fdd � Zddd d �d d �Zddd�dd�Zdd d�dd�Zddd�dd�Z dUdddd�� fdd� Z ddd�d d �Z ddd�d d �Z d d!�d"d#�Z d$d!�d%d&�Zdd d�d'd(�Zd)d*�dddd d+�d,d-�Zd.dd d/�d0d1�Zejdd2d�d3d4��Zejdd5d6d�d7d4��Zejfdd8d6d�d9d4�Zd:d!�d;d<�ZeZeZeZeZdd!�d=d>�Z d d d�d?d@�Z d d!�dAdB�Z dCd!�dDdE�Z dCd!�dFdG�Z dHd!�dIdJ�Z!ddddK�dLdM�Z"dd d�dNdO�Z#dd d�dPdQ�Z$dd d�dRdS�Z%� Z&S )Vr 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' z%typing.MutableMapping[str, list[str]]r& Nz ValidHTTPHeaderSource | Noner )rH �kwargsc sJ t � �� i | _|d k r8t|t�r.| �|� n | �|� |rF| �|� d S )N)r. r/ r& r r � _copy_from�extend)r rH rO )r0 r r r/ � s zHTTPHeaderDict.__init__r, )r �valr c C s* t |t�r|�d�}||g| j|�� < d S )Nzlatin-1)r �bytes�decoder& �lower)r r rR r r r r: � s zHTTPHeaderDict.__setitem__)r r c C s | j |�� }d�|dd � �S )Nz, � )r& rU �join)r r rR r r r r s zHTTPHeaderDict.__getitem__c C s | j |�� = d S )N)r& rU )r r r r r r; s zHTTPHeaderDict.__delitem__r rJ c C s t |t�r|�� | jkS dS )NF)r r rU r& )r r r r r rN s zHTTPHeaderDict.__contains__� )r �defaultr c s t � �||�S )N)r. � setdefault)r r rY )r0 r r rZ s zHTTPHeaderDict.setdefault)�otherr c C sD t |�}|d krdS t| �|�}dd� | �� D �dd� |�� D �kS )NFc S s i | ]\}}||� � �qS r )rU )�.0�k�vr r r � <dictcomp> s z)HTTPHeaderDict.__eq__.<locals>.<dictcomp>)r% �type� itermerged)r r[ �maybe_constructableZother_as_http_header_dictr r r �__eq__ s zHTTPHeaderDict.__eq__c C s | � |� S )N)rc )r r[ r r r �__ne__ s zHTTPHeaderDict.__ne__r' )r c C s t | j�S )N)r6 r& )r r r r r< s zHTTPHeaderDict.__len__ztyping.Iterator[str]c c s" x | j �� D ]}|d V q W d S )Nr )r& r@ )r �valsr r r r> ! s zHTTPHeaderDict.__iter__c C s$ y | |= W n t k r Y nX d S )N)r5 )r r r r r �discard& s zHTTPHeaderDict.discardF)�combine)r rR rg r c C sr t |t�r|�d�}|�� }||g}| j�||�}||k rnt|�dksJt�|rd|d d | |d< n |�|� dS )a� Adds a (name, value) pair, doesn't overwrite the value if it already exists. If this is called with combine=True, instead of adding a new header value as a distinct item during iteration, this will instead append the value to any existing header value with a comma. If no existing header value exists for the key, then the value will simply be added, ignoring the combine parameter. >>> headers = HTTPHeaderDict(foo='bar') >>> headers.add('Foo', 'baz') >>> headers['foo'] 'bar, baz' >>> list(headers.items()) [('foo', 'bar'), ('foo', 'baz')] >>> headers.add('foo', 'quz', combine=True) >>> list(headers.items()) [('foo', 'bar, baz, quz')] zlatin-1rK ���z, N) r rS rT rU r& rZ r6 �AssertionError�append)r r rR rg � key_lower�new_valsre r r r �add, s zHTTPHeaderDict.add�ValidHTTPHeaderSource)�argsrO r c O sB t |�dkr tdt |�� d���t |�dkr4|d nd}t|t�rfx�|�� D ]\}}| �||� qLW n�t|tj�r�x�|�� D ]\}}| �||� q|W n�t|tj �r�t� tj tj t t f |�}xZ|D ]\}}| �||� q�W n<t |d��rt |d��rx"|�� D ]}| �||| � �q W x"|�� D ]\}}| �||� �q$W dS ) z�Generic import function for any type of header-like object. Adapted version of MutableMapping.update in order to insert items with self.add instead of self.__setitem__ rV z/extend() takes at most 1 positional arguments (z given)r r r r N)r6 � TypeErrorr r rI rm r r �itemsr" r! r# r r$ r )r ro rO r[ r rR r3 r r r rQ O s& zHTTPHeaderDict.extendz list[str]c C s d S )Nr )r r r r r �getlistp s zHTTPHeaderDict.getlistr zlist[str] | _DTc C s d S )Nr )r r rY r r r rr t s z_Sentinel | _DTc C sF y| j |�� }W n" tk r4 |tjkr0g S |S X |dd� S dS )zmReturns a list of all the values for the named field. Returns an empty list if the key doesn't exist.rV N)r& rU r5 r r )r r rY re r r r rr x s r c C s. dddddddg}x|D ]}| � |� qW | S )z� Remove content-specific header fields before changing the request method to GET or HEAD according to RFC 9110, Section 15.4. zContent-EncodingzContent-LanguagezContent-Locationz Content-TypezContent-LengthZDigestz Last-Modified)rf )r Zcontent_specific_headers�headerr r r �_prepare_for_method_change� s z)HTTPHeaderDict._prepare_for_method_changec C s t | �j� dt| �� �� d�S )N�(�))r` r �dictra )r r r r �__repr__� s zHTTPHeaderDict.__repr__c C s0 x*|D ]"}|� |�}|f|�| j|�� < qW d S )N)rr r& rU )r r[ r rR r r r rP � s zHTTPHeaderDict._copy_fromc C s t | �� }|�| � |S )N)r` rP )r �cloner r r �copy� s zHTTPHeaderDict.copyz typing.Iterator[tuple[str, str]]c c sD x>| D ]6}| j |�� }x"|dd� D ]}|d |fV q&W qW dS )z8Iterate over all header lines, including duplicate ones.rV Nr )r& rU )r r re rR r r r rI � s zHTTPHeaderDict.iteritemsc c s< x6| D ].}| j |�� }|d d�|dd� �fV qW dS )z:Iterate over all headers, merging duplicate ones together.r z, rV N)r& rU rW )r r rR r r r ra � s zHTTPHeaderDict.itermergedrF c C s t | �S )N)rF )r r r r rq � s zHTTPHeaderDict.items)� header_name�potential_valuer c C s& || kr"|| j |�� dd � kS dS )NrV F)r& rU )r r{ r| r r r rM � s z$HTTPHeaderDict._has_value_for_headerc C s" t |�}|d krtS | �|� | S )N)r% �NotImplementedrQ )r r[ rb r r r �__ior__� s zHTTPHeaderDict.__ior__c C s* t |�}|d krtS | �� }|�|� |S )N)r% r} rz rQ )r r[ rb �resultr r r �__or__� s zHTTPHeaderDict.__or__c C s. t |�}|d krtS t| �|�}|�| � |S )N)r% r} r` rQ )r r[ rb r r r r �__ror__� s zHTTPHeaderDict.__ror__)N)rX )'r r r rC rD r/ r: r r; rN rZ rc rd r< r> rf rm rQ r �overloadrr r r rt � getheaders�getallmatchingheaders�iget�get_allrx rP rz rI ra rq rM r~ r� r� rE r r )r0 r r � sB #! )"� __future__r r � collectionsr �enumr r � threadingr � TYPE_CHECKINGZtyping_extensionsr r r �__all__�TypeVarr r r �Unionr r r" r# rn r r% �Generic�MutableMappingr �SetrF r r r r r �<module> s* &] 0