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In Requests 3.0, support will be removed for files in text mode.�tell�seek� )r? rC rD �io�UnsupportedOperation�os�fstat�st_size�mode�warnings�warnr rF r0 �IOErrorrG �max)�o� total_length�current_positionrD r; r; r< � super_lenk sB � rV Fc C s � z�ddl m }m} d}tD ]H}ztj�d�|��}W n tyN Y W dS 0 tj�|�r |} qfq |du rtW dS t | �}d}t | t �r�|� d�}|j �|�d } z:||��| �} | r�| d r�dnd} | | | d fW W S W n |tfy� |r�� Y n0 W n ttf�y Y n0 dS ) z;Returns the Requests tuple auth for a given url from netrc.r )�netrc�NetrcParseErrorNz~/{}� :�asciir rH )rW rX � NETRC_FILESrK �path� expanduser�format�KeyError�existsr � isinstancer �decode�netlocr1 �authenticatorsrQ r+ �AttributeError) �url� raise_errorsrW rX � netrc_path�f�loc�ri�splitstrr6 r �login_ir; r; r< �get_netrc_auth� s8 rn c C sB t | dd�}|r>t|t�r>|d dkr>|d dkr>tj�|�S dS )z0Tries to guess the filename of the given object.�nameNr �<����>)�getattrra r rK r\ �basename)�objro r; r; r< �guess_filename� s �rv c C s� t j�| �r| S t j�| �\}}|rPt j�|�sPt j�|�\}}d�||g�}q t�|�s^| S t�|�}||�� vrx| S t � � }t jj|g|�d��R � }t j�|�s�|j ||d�}|S )z�Replace nonexistent paths that look like they refer to a member of a zip archive with the location of an extracted copy of the target, or else just return the provided path unchanged. �/)r\ ) rK r\ r` r1 �join�zipfile� is_zipfile�ZipFile�namelist�tempfile� gettempdir�extract)r\ �archive�member�prefix�zip_file�tmp�extracted_pathr; r; r< �extract_zipped_paths� s r� c C s. | du r dS t | ttttf�r&td��t| �S )a� Take an object and test to see if it can be represented as a dictionary. 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') ValueError: cannot encode objects that are not 2-tuples >>> from_key_val_list({'key': 'val'}) OrderedDict([('key', 'val')]) :rtype: OrderedDict N�+cannot encode objects that are not 2-tuples)ra r r �boolr. � ValueErrorr ��valuer; r; r< �from_key_val_list s r� c C s@ | du r 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') ValueError: cannot encode objects that are not 2-tuples. :rtype: list Nr� ) ra r r r� r. r� r r> �listr� r; r; r< �to_key_val_list s r� c C sX g }t | �D ]F}|dd� |dd� kr4dkrHn nt|dd� �}|�|� q |S )a Parse lists as described by RFC 2068 Section 2. In particular, parse comma-separated lists where the elements of the list may include quoted-strings. A quoted-string could contain a comma. A non-quoted string could have quotes in the middle. Quotes are removed automatically after parsing. It basically works like :func:`parse_set_header` just that items may appear multiple times and case sensitivity is preserved. 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 rq �")�_parse_list_header�unquote_header_value�append)r� �result�itemr; r; r< �parse_list_header8 s ( r� c C sx i }t | �D ]f}d|vr"d||< q |�dd�\}} | dd� | dd� krVdkrjn nt| dd� �} | ||< q |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 rq r� )r� r1 r� )r� r� r� ro r; r; r< �parse_dict_headerX 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=["\']*(.+?)["\'>])rO rP �DeprecationWarningr3 �compiler5 �findall)�content� charset_re� pragma_re�xml_rer; r; r< �get_encodings_from_content� s � ��r� c C s� | � d�}|d �� |dd� }}i }d}|D ]`}|�� }|r0|d }}|�d�} | dkr�|d| � �|�}|| d d� �|�}|||�� < q0||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� rq )r1 �strip�find�lower) �header�tokens� content_type�params� params_dict�items_to_strip�param�keyr� �index_of_equalsr; r; r< �_parse_content_type_header� s r� c C sD | � d�}|sdS t|�\}}d|v r4|d �d�S d|v r@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� r; r; r< �get_encoding_from_headers� s r� c c sj |j du r | D ] }|V qdS t�|j �dd�}| D ]}|�|�}|r4|V q4|jddd�}|rf|V dS )zStream decodes a iterator.Nr2 ��errors� T)�final)�encoding�codecs�getincrementaldecoderrb )�iterator�rr� �decoder�chunk�rvr; r; r< � stream_decode_response_unicode� s r� c c sH d}|du s|dkr t | �}|t | �k rD| ||| � V ||7 }q dS )z Iterate over slices of a string.r N)rC )�string� slice_length�posr; r; r< � iter_slices s r� c C sz t �dt� g }t| j�}|rJzt| j|�W S tyH |�|� Y n0 zt| j|dd�W S t yt | j Y S 0 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.)r2 r� N) rO rP r� r� r� r r� � UnicodeErrorr� � TypeError)r� �tried_encodingsr� r; r; r< �get_unicode_from_response s � r� zBABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~c C s� | � d�}tdt|��D ]�}|| dd� }t|�dkr�|�� r�ztt|d��}W n typ td| ��Y n0 |tv r�||| dd� ||< q�d|| ||< qd|| ||< qd� |�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 rH � z%Invalid percent-escape sequence: '%s'N� ) r1 �rangerC �isalnum�chrr. r� r �UNRESERVED_SETrx )�uri�parts�i�h�cr; r; r< �unquote_unreserved5 s r� c C s> d}d}zt t| �|d�W S ty8 t | |d� Y S 0 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!#$&'()*+,/:;=?@[]~)�safeN)r r� r )r� �safe_with_percent�safe_without_percentr; r; r< � requote_uriM s r� c C sl t �dt�| ��d }|�d�\}}t �dt�tt|����d }t �dt�|��d |@ }||@ ||@ kS )z�This function allows you to check if an IP belongs to a network subnet Example: returns True if ip = 192.168.1.1 and net = 192.168.1.0/24 returns False if ip = 192.168.1.1 and net = 192.168.100.0/24 :rtype: bool z=Lr rw )�struct�unpack�socket� inet_atonr1 �dotted_netmaskr. )�ip�net�ipaddr�netaddr�bits�netmask�networkr; r; r< �address_in_networkc s r� c C s& ddd| > d A }t �t�d|��S )z�Converts mask from /xx format to xxx.xxx.xxx.xxx Example: if mask is 24 function returns 255.255.255.0 :rtype: str l �� r � z>I)r� � inet_ntoar� �pack)�maskr� r; r; r< r� r s r� c C s* zt �| � W n t jy$ Y dS 0 dS )z :rtype: bool FT)r� r� �error)� string_ipr; r; r< �is_ipv4_address} s r� c C s� | � d�dkr�zt| �d�d �}W n ty8 Y dS 0 |dk sJ|dkrNdS zt�| �d�d � W q� tjy| Y dS 0 ndS dS )zV Very simple check of the cidr format in no_proxy variable. :rtype: bool rw r Fr� r T)�countr. r1 r� r� r� r� )�string_networkr� r; r; r< � is_valid_cidr� s r� c c st |du}|r"t j�| �}|t j| < z*dV W |rp|du rBt j| = qp|t j| < n"|rn|du rdt j| = n |t j| < 0 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)rK �environr� )�env_namer� � value_changed� old_valuer; r; r< � set_environ� s � r� c C s> dd� }|}|du r |d�}t | �}|jdu r2dS |r�dd� |�dd ��d �D �}t|j�r�|D ]0}t|�r�t|j|�r� dS q`|j|kr` dS q`nB|j}|jr�|d �|j�7 }|D ] }|j� |�s�|� |�r� dS q�t d|��> zt |j�}W n t t jf�y d }Y n0 W d � n1 �s&0 Y |�r:dS d S ) zL Returns whether we should bypass proxies or not. :rtype: bool c S s t j�| �pt j�| �� �S �N)rK r� r� �upper)�kr; r; r< �<lambda>� r� z'should_bypass_proxies.<locals>.<lambda>N�no_proxyTc s s | ]}|r|V qd S r� r; )�.0r6 r; r; r< � <genexpr>� s z(should_bypass_proxies.<locals>.<genexpr>� r� �,z:{}F)r �hostnamer2 r1 r� r� r� �portr^ �endswithr� r r� r� �gaierror) rf r � get_proxy� no_proxy_arg�parsed�proxy_ip�host_with_portr6 �bypassr; r; r< �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 )rf r r; r; r< �get_environ_proxies� s r c C st |pi }t | �}|jdu r.|�|j|�d��S |jd |j |jd|j dg}d}|D ]}||v rV|| } qpqV|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)rf �proxies�urlparts� proxy_keys�proxy� proxy_keyr; r; r< � 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/%sr )ro r; r; r< �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 rx r; r; r; r< �default_headers" s �r c C s� g }d}| � |�} | s|S t�d| �D ]�}z|�dd�\}}W n tyZ |d }}Y n0 d|� d�i}|�d�D ]D}z|�d�\}} W n ty� Y q�Y n0 | � |�||� |�< qt|�|� q&|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� rf z<> '"r� )r� r3 r1 r� r� ) r� �links� replace_chars�valrf r� �linkr� r� r; r; r< �parse_header_links. s& r$ � rZ rH � c C s� | dd� }|t jt jfv r dS |dd� t jkr6dS |dd� t jt jfv rRdS |�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-sigrH 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� nullcountr; r; r< �guess_json_utfY s* r3 c C s8 t | |�\}}}}}}|s$|| }}t||||||f�S )z�Given a URL that may or may not have a scheme, prepend the given scheme. 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