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편집 파일: utils.cpython-37.pyc
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Unless it can not be represented as such, return an OrderedDict, e.g., :: >>> from_key_val_list([('key', 'val')]) OrderedDict([('key', 'val')]) >>> from_key_val_list('string') Traceback (most recent call last): ... ValueError: cannot encode objects that are not 2-tuples >>> from_key_val_list({'key': 'val'}) OrderedDict([('key', 'val')]) :rtype: OrderedDict Nz+cannot encode objects that are not 2-tuples)rZ r r �boolr* � ValueErrorr )�valuer4 r4 r5 �from_key_val_list s r� c C s@ | dkr dS t | ttttf�r&td��t | t�r8| �� } t| �S )a� Take an object and test to see if it can be represented as a dictionary. If it can be, return a list of tuples, e.g., :: >>> to_key_val_list([('key', 'val')]) [('key', 'val')] >>> to_key_val_list({'key': 'val'}) [('key', 'val')] >>> to_key_val_list('string') Traceback (most recent call last): ... 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The return value is a standard :class:`list`: >>> parse_list_header('token, "quoted value"') ['token', 'quoted value'] To create a header from the :class:`list` again, use the :func:`dump_header` function. :param value: a string with a list header. :return: :class:`list` :rtype: list Nr rj �")�_parse_list_header�unquote_header_value�append)r� �result�itemr4 r4 r5 �parse_list_header= s (r� c C s| i }xrt | �D ]f}d|kr$d||< q|�dd�\}} | dd� | dd� krXdkrln nt| dd� �} | ||< qW |S )a^ Parse lists of key, value pairs as described by RFC 2068 Section 2 and convert them into a python dict: >>> d = parse_dict_header('foo="is a fish", bar="as well"') >>> type(d) is dict True >>> sorted(d.items()) [('bar', 'as well'), ('foo', 'is a fish')] If there is no value for a key it will be `None`: >>> parse_dict_header('key_without_value') {'key_without_value': None} To create a header from the :class:`dict` again, use the :func:`dump_header` function. :param value: a string with a dict header. :return: :class:`dict` :rtype: dict �=Nr rj r� )r� r- r� )r� r� r� rh r4 r4 r5 �parse_dict_header] s ( r� c C s\ | rX| d | d kr dkrXn n4| dd� } |rD| dd� dkrX| � dd�� d d�S | S ) z�Unquotes a header value. 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(This warning should only appear once.)z!<meta.*?charset=["\']*(.+?)["\'>])�flagsz+<meta.*?content=["\']*;?charset=(.+?)["\'>]z$^<\?xml.*?encoding=["\']*(.+?)["\'>])rH rI �DeprecationWarningr/ �compiler1 �findall)�content� charset_re� pragma_re�xml_rer4 r4 r5 �get_encodings_from_content� s r� c C s� | � d�}|d �� |dd� }}i }d}xh|D ]`}|�� }|r2|d }}|�d�} | dkr�|d| � �|�}|| d d� �|�}|||�� < q2W ||fS ) z�Returns content type and parameters from given header :param header: string :return: tuple containing content type and dictionary of parameters r! r r Nz"' Tr� rj )r- �strip�find�lower) �header�tokens� content_type�params� params_dict�items_to_strip�param�keyr� �index_of_equalsr4 r4 r5 �_parse_content_type_header� s r� c C sD | � d�}|sdS t|�\}}d|kr4|d �d�S d|kr@dS dS )z}Returns encodings from given HTTP Header Dict. :param headers: dictionary to extract encoding from. :rtype: str z content-typeN�charsetz'"�textz ISO-8859-1)�getr� r� )�headersr� r� r4 r4 r5 �get_encoding_from_headers� s r� c c sr |j dkr"x| D ] }|V qW dS t�|j �dd�}x | D ]}|�|�}|r:|V q:W |jddd�}|rn|V dS )zStream decodes a iterator.Nr. )�errors� T)�final)�encoding�codecs�getincrementaldecoderr[ )�iterator�rr� �decoder�chunk�rvr4 r4 r5 � stream_decode_response_unicode� s r� c c sL d}|dks|dkr t | �}x*|t | �k rF| ||| � V ||7 }q W dS )z Iterate over slices of a string.r N)r< )�string� slice_length�posr4 r4 r5 � iter_slices s r� c C sv t �dt� g }t| j�}|rJy t| j|�S tk rH |�|� Y nX yt| j|dd�S t k rp | jS X dS )z�Returns the requested content back in unicode. :param r: Response object to get unicode content from. Tried: 1. charset from content-type 2. fall back and replace all unicode characters :rtype: str z�In requests 3.0, get_unicode_from_response will be removed. For more information, please see the discussion on issue #2266. (This warning should only appear once.)r. )r� N) rH rI r� r� r� r r� � UnicodeErrorr� � TypeError)r� �tried_encodingsr� r4 r4 r5 �get_unicode_from_response s r� zBABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~c C s� | � d�}x�tdt|��D ]�}|| dd� }t|�dkr�|�� r�ytt|d��}W n tk rt td| ��Y nX |tkr�||| dd� ||< q�d|| ||< qd|| ||< qW d� |�S ) z�Un-escape any percent-escape sequences in a URI that are unreserved characters. This leaves all reserved, illegal and non-ASCII bytes encoded. :rtype: str �%r r rA � z%Invalid percent-escape sequence: '%s'N� ) r- �ranger< �isalnum�chrr* r� r �UNRESERVED_SETrq )�uri�parts�i�h�cr4 r4 r5 �unquote_unreserved: s r� c C s: d}d}yt t| �|d�S tk r4 t | |d�S X dS )z�Re-quote the given URI. This function passes the given URI through an unquote/quote cycle to ensure that it is fully and consistently quoted. :rtype: str z!#$%&'()*+,/:;=?@[]~z!#$&'()*+,/:;=?@[]~)�safeN)r r� r )r� �safe_with_percent�safe_without_percentr4 r4 r5 � requote_uriR s r� c C sl t �dt�| ��d }|�d�\}}t �dt�tt|����d }t �dt�|��d |@ }||@ ||@ kS )z�This function allows you to check if an IP belongs to a network subnet Example: returns True if ip = 192.168.1.1 and net = 192.168.1.0/24 returns False if ip = 192.168.1.1 and net = 192.168.100.0/24 :rtype: bool z=Lr rp )�struct�unpack�socket� inet_atonr- �dotted_netmaskr* )�ip�net�ipaddr�netaddr�bits�netmask�networkr4 r4 r5 �address_in_networkh s r� c C s& ddd| > d A }t �t�d|��S )z�Converts mask from /xx format to xxx.xxx.xxx.xxx Example: if mask is 24 function returns 255.255.255.0 :rtype: str l �� r � z>I)r� � inet_ntoar� �pack)�maskr� r4 r4 r5 r� w s r� c C s* yt �| � W n t jk r$ dS X dS )z :rtype: bool FT)r� r� �error)� string_ipr4 r4 r5 �is_ipv4_address� s r� c C s� | � d�dkr�yt| �d�d �}W n tk r8 dS X |dk sJ|dkrNdS yt�| �d�d � W q� tjk r| dS X ndS dS )zV Very simple check of the cidr format in no_proxy variable. :rtype: bool rp r Fr� r T)�countr* r- r� r� r� r� )�string_networkr� r4 r4 r5 � is_valid_cidr� s r� c c sT |dk }|r"t j�| �}|t j| < z dV W d|rN|dkrDt j| = n |t j| < X dS )z�Set the environment variable 'env_name' to 'value' Save previous value, yield, and then restore the previous value stored in the environment variable 'env_name'. If 'value' is None, do nothingN)rD �environr� )�env_namer� � value_changed� old_valuer4 r4 r5 � set_environ� s r� c C s, dd� }|}|dkr |d�}t | �}|jdkr2dS |r�dd� |�dd ��d �D �}t|j�r�xz|D ],}t|�r�t|j|�r�dS qb|j|krbdS qbW nD|j}|jr�|d �|j�7 }x&|D ] }|j� |�s�|� |�r�dS q�W t d|��6 yt |j�}W n t t jfk �r d }Y nX W dQ R X |�r(dS d S ) zL Returns whether we should bypass proxies or not. :rtype: bool c S s t j�| �pt j�| �� �S )N)rD r� r� �upper)�kr4 r4 r5 �<lambda>� r� z'should_bypass_proxies.<locals>.<lambda>N�no_proxyTc s s | ]}|r|V qd S )Nr4 )�.0r2 r4 r4 r5 � <genexpr>� s z(should_bypass_proxies.<locals>.<genexpr>� r� �,z:{}F)r �hostnamer. r- r� r� r� �portrW �endswithr� r r� r� �gaierror) r_ r� � get_proxy� no_proxy_arg�parsed�proxy_ip�host_with_portr2 �bypassr4 r4 r5 �should_bypass_proxies� s< r c C s t | |d�ri S t� S dS )zA Return a dict of environment proxies. :rtype: dict )r� N)r r )r_ r� r4 r4 r5 �get_environ_proxies� s r c C sv |pi }t | �}|jdkr.|�|j|�d��S |jd |j |jd|j dg}d}x |D ]}||krX|| }P qXW |S )z�Select a proxy for the url, if applicable. :param url: The url being for the request :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs N�allz://zall://)r r� r� �scheme)r_ �proxies�urlparts� proxy_keys�proxy� proxy_keyr4 r4 r5 � select_proxy s r �python-requestsc C s d| t f S )zO Return a string representing the default user agent. :rtype: str z%s/%s)r )rh r4 r4 r5 �default_user_agent s r c C s t t� d�d�ddd��S )z9 :rtype: requests.structures.CaseInsensitiveDict z, )�gzip�deflatez*/*z keep-alive)z User-AgentzAccept-Encoding�Accept� Connection)r r rq r4 r4 r4 r5 �default_headers' s r c C s� g }d}| � |�} | s|S x�t�d| �D ]�}y|�dd�\}}W n tk r^ |d }}Y nX d|� d�i}xP|�d�D ]B}y|�d�\}} W n tk r� P Y nX | � |�||� |�< qzW |�|� q(W |S ) z�Return a list of parsed link headers proxies. i.e. Link: <http:/.../front.jpeg>; rel=front; type="image/jpeg",<http://.../back.jpeg>; rel=back;type="image/jpeg" :rtype: list z '"z, *<r! r r� r_ z<> '"r� )r� r/ r- r� r� ) r� �links� replace_chars�valr_ r� �linkr� r� r4 r4 r5 �parse_header_links3 s& r � rS rA � c C s� | dd� }|t jt jfkr dS |dd� t jkr6dS |dd� t jt jfkrRdS |�t�}|dkrhd S |dkr�|ddd� tkr�d S |d dd� tkr�d S |dkr�|dd� t kr�d S |d d� t kr�dS dS )z :rtype: str N� zutf-32r z utf-8-sigrA zutf-16r zutf-8z utf-16-ber z utf-16-lez utf-32-bez utf-32-le) r� � BOM_UTF32_LE� BOM_UTF32_BE�BOM_UTF8� BOM_UTF16_LE� BOM_UTF16_BEr� �_null�_null2�_null3)�data�sample� nullcountr4 r4 r5 �guess_json_utf^ s* r( c C s8 t | |�\}}}}}}|s$|| }}t||||||f�S )z�Given a URL that may or may not have a scheme, prepend the given scheme. Does not replace a present scheme with the one provided as an argument. :rtype: str )r r )r_ � new_schemer r\ rU r� �query�fragmentr4 r4 r5 �prepend_scheme_if_needed~ s r, c C sB t | �}yt|j�t|j�f}W n ttfk r< d}Y nX |S )z{Given a url with authentication components, extract them into a tuple of username,password. :rtype: (str,str) )r� r� )r r �username�passwordr^ r� )r_ r �authr4 r4 r5 �get_auth_from_url� s r0 s ^\S[^\r\n]*$|^$z^\S[^\r\n]*$|^$c C sf | \}}t |t�rt}nt}y|�|�s4td| ��W n* tk r` td||t|�f ��Y nX dS )z�Verifies that header value is a string which doesn't contain leading whitespace or return characters. This prevents unintended header injection. :param header: tuple, in the format (name, value). z7Invalid return character or leading space in header: %sz>Value for header {%s: %s} must be of type str or bytes, not %sN)rZ r �_CLEAN_HEADER_REGEX_BYTE�_CLEAN_HEADER_REGEX_STRr0 r r� �type)r� rh r� �patr4 r4 r5 �check_header_validity� s r5 c C sF t | �\}}}}}}|s"|| }}|�dd�d }t|||||df�S )zW Given a url remove the fragment and the authentication part. :rtype: str �@r rj r� )r �rsplitr )r_ r r\ rU r� r* r+ r4 r4 r5 � urldefragauth� s r8 c C s` t | jdd�}|dk rTt| jt�rTy|| j� W q\ ttfk rP td��Y q\X ntd��dS )zfMove file pointer back to its recorded starting position so it can be read again on redirect. r@ Nz;An error occurred when rewinding request body for redirect.z+Unable to rewind request body for redirect.)rl �bodyrZ �_body_positionr rJ r, r )�prepared_request� body_seekr4 r4 r5 � rewind_body� s r= )F)F)N)r )b�__doc__r� � contextlibrB rD r/ r� r� �sysrv rH rr � collectionsr r r� r �_internal_utilsr �compatr r� r r r r r r r r r r r r r r �cookiesr � structuresr � exceptionsr r r r rT �where�DEFAULT_CA_BUNDLE_PATH� DEFAULT_PORTS�platformr6 r: rO rg ro r r� r� r� r� r� r� r� r� r� r� r� r� r� � frozensetr� r� r� r� r� r� r� �contextmanagerr� r r r r r r �encoder" r# r$ r( r, r0 r� r1 r2 r5 r8 r= r4 r4 r4 r5 �<module> s� @ ' = 3 # % = &