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편집 파일: utils.cpython-38.pyc
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Checks proxy settings gathered from the environment, if specified, or the registry. N)r r r> )r: r< r< r= r r s r c C s t | d�r| �� } | S )z/Returns an internal sequence dictionary update.�items)�hasattrr? )�dr< r< r= �dict_to_sequence~ s rB c C sF d }d}t | t�r | �d�} t| d�r0t| �}nft| d�rB| j}nTt| d�r�z | �� }W n tjtfk rr Y n$X t � |�j }d| j kr�t �dt� t| d��r*z | �� }W n tk r� |d k r�|}Y n\X t| d ��r*|d k�r*z(| �dd � | �� }| �|�pd� W n tk �r( d}Y nX |d k�r8d}td|| �S ) Nr �utf-8�__len__�len�fileno�ba% Requests has determined the content-length for this request using the binary size of the file: however, the file has been opened in text mode (i.e. without the 'b' flag in the mode). This may lead to an incorrect content-length. In Requests 3.0, support will be removed for files in text mode.�tell�seek� )� isinstancer �encoder@ rE rF �io�UnsupportedOperation�AttributeError�os�fstat�st_size�mode�warnings�warnr rH r2 rI �max)�o� total_length�current_positionrF r< r< r= � super_len� sF � rZ Fc C sL t j�d�}|dk r |f}ndd� tD �}�z ddlm}m} d}|D ]D}zt j�|�}W n tk rt Y W dS X t j� |�rF|} q�qF|dkr�W dS t | �} d} t | t �r�| � d�} | j�| �d } z<||��| �} | �r| d r�dnd } | | | d fW W S W n" |tfk �r( |�r$� Y nX W n ttfk �rF Y nX dS ) z;Returns the Requests tuple auth for a given url from netrc.�NETRCNc s s | ]}d |� �V qdS )z~/Nr< )�.0�fr< r< r= � <genexpr>� s z!get_netrc_auth.<locals>.<genexpr>r )�NetrcParseError�netrc� :�asciir rJ )rP �environ�get� NETRC_FILESr` r_ �path� expanduser�KeyError�existsr rK r �decode�netlocr4 �authenticatorsr2 r- rO )�url� raise_errors� netrc_file�netrc_locationsr_ r` � netrc_pathr] �loc�ri�splitstrr: r" �login_ir< r< r= �get_netrc_auth� s@ rv 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 �<����>)�getattrrK r rP rf �basename)�objrw r< r< r= �guess_filename s &r~ c C s� t j�| �r| S t j�| �\}}|rVt j�|�sVt j�|�\}}|sFqVd�||g�}q t�|�sd| S t�|�}||�� kr~| S t � � }t j�||�d�d �}t j�|�s�t |��}|� |� |�� W 5 Q R X |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. �/ry )rP rf ri r4 �join�zipfile� is_zipfile�ZipFile�namelist�tempfile� gettempdir� atomic_open�write�read)rf �archive�member�prefix�zip_file�tmp�extracted_path� file_handlerr< r< r= �extract_zipped_paths s& r� c c sl t jtj�| �d�\}}z.t�|d�� }|V W 5 Q R X t�|| � W n tk rf t�|� � Y nX dS )z-Write a file to the disk in an atomic fashion)�dir�wbN) r� �mkstemprP rf �dirname�fdopenr6 � BaseException�remove)�filename�tmp_descriptor�tmp_name� tmp_handlerr< r< r= r� 1 s r� c C s. | dkr 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') 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 N�+cannot encode objects that are not 2-tuples)rK r r �boolr0 r3 r ��valuer< r< r= �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): ... ValueError: cannot encode objects that are not 2-tuples :rtype: list Nr� ) rK r r r� r0 r3 r r? �listr� r< r< r= �to_key_val_listY 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 ry �")�_parse_list_header�unquote_header_value�append)r� �result�itemr< r< r= �parse_list_headerw s ( r� c C sx i }t | �D ]f}d|kr"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 ry r� )r� r4 r� )r� r� r� rw r< r< r= �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 does not use the real unquoting but what browsers are actually using for quoting. :param value: the header value to unquote. :rtype: str r ry r� r NrJ z\\�\z\")r6 )r� � is_filenamer< r< r= r� � s $ r� c C s dd� | D �}|S )z�Returns a key/value dictionary from a CookieJar. :param cj: CookieJar object to extract cookies from. :rtype: dict c S s i | ]}|j |j�qS r< )rw r� )r\ �cookier< r< r= � <dictcomp>� s z'dict_from_cookiejar.<locals>.<dictcomp>r< ��cj� cookie_dictr< r< r= �dict_from_cookiejar� s r� c C s t || �S )z�Returns a CookieJar from a key/value dictionary. :param cj: CookieJar to insert cookies into. :param cookie_dict: Dict of key/values to insert into CookieJar. :rtype: CookieJar r r� r< r< r= �add_dict_to_cookiejar� s r� c C sT t �dt� tjdtjd�}tjdtjd�}t�d�}|�| �|�| � |�| � S )zlReturns encodings from given content string. :param content: bytestring to extract encodings from. z�In requests 3.0, get_encodings_from_content will be removed. 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(This warning should only appear once.)z!<meta.*?charset=["\']*(.+?)["\'>])�flagsz+<meta.*?content=["\']*;?charset=(.+?)["\'>]z$^<\?xml.*?encoding=["\']*(.+?)["\'>])rT rU �DeprecationWarningr7 �compiler9 �findall)�content� charset_re� pragma_re�xml_rer< r< r= �get_encodings_from_content� s � ���r� c C s� | � d�}|d �� |dd� }}i }d}|D ]`}|�� }|r0|d }}|�d�} | dkr�|d| � �|�}|| d d� �|�}|||�� < q0||fS ) z�Returns content type and parameters from given header :param header: string :return: tuple containing content type and dictionary of parameters r( r r Nz"' Tr� ry )r4 �strip�find�lower) �header�tokens� content_type�params� params_dict�items_to_strip�param�keyr� �index_of_equalsr< r< r= �_parse_content_type_header s r� c C sP | � d�}|sdS t|�\}}d|kr4|d �d�S d|kr@dS d|krLdS dS ) z}Returns encodings from given HTTP Header Dict. :param headers: dictionary to extract encoding from. :rtype: str z content-typeN�charsetz'"�textz ISO-8859-1zapplication/jsonrC )rd r� r� )�headersr� r� r< r< r= �get_encoding_from_headers s r� c c sd |j dkr| E dH dS t�|j �dd�}| D ]}|�|�}|r.|V q.|jddd�}|r`|V dS )zStream decodes an iterator.Nr6 ��errors� T)�final)�encoding�codecs�getincrementaldecoderrj )�iterator�r�decoder�chunk�rvr< r< r= � stream_decode_response_unicode4 s r� c c sH d}|dks|dkr t | �}|t | �k rD| ||| � V ||7 }q dS )z Iterate over slices of a string.r N)rE )�string� slice_length�posr< r< r= � iter_slicesE s r� c C s~ t �dt� g }t| j�}|rLzt| j|�W S tk rJ |�|� Y nX zt| j|dd�W S t k rx | j Y S X dS )z�Returns the requested content back in unicode. :param r: Response object to get unicode content from. Tried: 1. charset from content-type 2. fall back and replace all unicode characters :rtype: str z�In requests 3.0, get_unicode_from_response will be removed. For more information, please see the discussion on issue #2266. (This warning should only appear once.)r6 r� N) rT rU r� r� r� r r� � UnicodeErrorr� � TypeError)r� �tried_encodingsr� r< r< r= �get_unicode_from_responseO s � r� zBABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~c C s� | � d�}tdt|��D ]�}|| dd� }t|�dkr�|�� r�ztt|d��}W n$ tk rv td|� d���Y nX |tkr�||| 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 rJ � z"Invalid percent-escape sequence: '�'N� ) r4 �rangerE �isalnum�chrr0 r3 r �UNRESERVED_SETr� )�uri�parts�i�h�cr< r< r= �unquote_unreserved| s r� c C s@ d}d}zt t| �|d�W S tk r: t | |d� Y 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_percentr< r< r= � requote_uri� 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 r )�struct�unpack�socket� inet_atonr4 �dotted_netmaskr0 )�ip�net�ipaddr�netaddr�bits�netmask�networkr< r< r= �address_in_network� 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� � s r� c C s* zt �| � W n tk r$ Y dS X dS )z :rtype: bool FT)r� r� r2 )� string_ipr< r< r= �is_ipv4_address� s r c C s� | � d�dkr�zt| �d�d �}W n tk r: Y dS X |dk sL|dkrPdS zt�| �d�d � W q� tk r~ Y dS X ndS dS )zV Very simple check of the cidr format in no_proxy variable. :rtype: bool r r Fr r T)�countr0 r4 r3 r� r� r2 )�string_networkr r< r< r= � is_valid_cidr� s r c c sT |dk }|r"t j�| �}|t j| < z dV W 5 |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)rP rc rd )�env_namer� � value_changed� old_valuer< r< r= � set_environ� s r c C s* dd� }|}|dkr |d�}t | �}|jdkr2dS |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|��6 zt |j�}W n t t j fk �r d }Y nX W 5 Q 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)rP rc rd �upper)r� r< r< r= � get_proxy s z(should_bypass_proxies.<locals>.get_proxyN�no_proxyTc s s | ]}|r|V qd S r r< )r\ r: r< r< r= r^ s z(should_bypass_proxies.<locals>.<genexpr>� r� �,�:F)r �hostnamer6 r4 r r r �port�endswithr r r� r� �gaierror) rm r r � no_proxy_arg�parsed�proxy_ip�host_with_portr: �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 )rm r r< r< r= �get_environ_proxies: s r# c C st |pi }t | �}|jdkr.|�|j|�d��S |jd |j |jd|j dg}d}|D ]}||krV|| } 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 rd �scheme)rm �proxies�urlparts� proxy_keys�proxy� proxy_keyr< r< r= � select_proxyF s �r+ c C st |dk r |ni }| j }t|�j}|�d�}|�� }|rpt||d�spt||d�}|�||�d��}|rp|�||� |S )a� This method takes proxy information from a request and configuration input to resolve a mapping of target proxies. This will consider settings such as NO_PROXY to strip proxy configurations. :param request: Request or PreparedRequest :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs :param trust_env: Boolean declaring whether to trust environment configs :rtype: dict Nr r" r$ )rm r r% rd �copyr! r# � setdefault) �requestr& � trust_envrm r% r � new_proxies�environ_proxiesr) r< r< r= �resolve_proxies` s r2 �python-requestsc C s | � dt � �S )zO Return a string representing the default user agent. :rtype: str r r )rw r< r< r= �default_user_agent{ s r4 c C s t t� tddd��S )z9 :rtype: requests.structures.CaseInsensitiveDict z*/*z keep-alive)z User-AgentzAccept-Encoding�Accept� Connection)r! r4 �DEFAULT_ACCEPT_ENCODINGr< r< r< r= �default_headers� s ��r8 c C s� g }d}| � |�} | s|S t�d| �D ]�}z|�dd�\}}W n tk r\ |d }}Y nX d|� d�i}|�d�D ]F}z|�d�\}} W n tk r� Y q�Y nX | � |�||� |�< qv|�|� 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� rm z<> '"r� )r� r7 r4 r3 r� ) r� �links� replace_chars�valrm r� �linkr� r� r< r< r= �parse_header_links� s& r= � rb rJ � 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-sigrJ zutf-16r rC z 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_utf� s* rL c C sl t | �}|\}}}}}}} |j} | s.|| } }|r@d�|| g�} |dkrL|}|dkrXd}t|| |d|| 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 �@Nr� )r rk r� r ) rm � new_schemer r% �authr: r rf �query�fragmentrk r< r< r= �prepend_scheme_if_needed� s rR c C sB t | �}zt|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�passwordrO r� )rm r rO r< r< r= �get_auth_from_url� s rU c C s$ | \}}t | |d� t | |d� dS )z�Verifies that header parts don't contain leading whitespace reserved characters, or return characters. :param header: tuple, in the format (name, value). r r N)�_validate_header_part)r� rw r� r< r< r= �check_header_validity s rW c C sx t |t�rt| }n2t |t�r(t| }n td|�d| � dt|�� ���|�|�st|dkr\dnd}td|� d|����d S ) Nz Header part (z) from z# must be of type str or bytes, not r rw r� zTInvalid leading whitespace, reserved character(s), or return character(s) in header z: )rK r r r r r �typer8 )r� � header_part�header_validator_index� validator� header_kindr< r< r= rV s � �rV c C sF t | �\}}}}}}|s"|| }}|�dd�d }t|||||df�S )zW Given a url remove the fragment and the authentication part. :rtype: str rM r ry r� )r �rsplitr )rm r% rk rf r� rP rQ r< r< r= � urldefragauth( s r^ c C s\ t | jdd�}|dk rPt| jt�rPz|| j� W qX tk rL td��Y qXX ntd��dS )zfMove file pointer back to its recorded starting position so it can be read again on redirect. rI Nz;An error occurred when rewinding request body for redirect.z+Unable to rewind request body for redirect.)r{ �bodyrK �_body_positionr r2 r )�prepared_request� body_seekr< r< r= � rewind_body9 s �� rc )F)F)N)T)r3 )j�__doc__r� � contextlibrM rP r7 r� r� �sysr� rT r� � collectionsr Z urllib3.utilr r r� r r �_internal_utilsr r r r �compatr r r r r r r r� r r r r r r r �cookiesr � exceptionsr r r r � structuresr! re �where�DEFAULT_CA_BUNDLE_PATH� DEFAULT_PORTSr� r4 r7 �platformr> rB rZ rv r~ r� �contextmanagerr� r� r� r� r� r� r� r� r� r� r� r� r� r� � frozensetr� r� r� r r� r r r r! r# r+ r2 r4 r8 r= rL rF rG rH rL rR rU rW rV r^ rc r< r< r< r= �<module> s� $ � & E 9% # (� = &