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편집 파일: utils.cpython-36.pyc
3 �Pf/l � @ s� d Z ddlZddlZddlZddlZddlZddlZddlZddlZddl Z ddl Z ddl Z ddl m Z ddl mZ ddlmZ ddlmZ ddlmZmZmZmZmZmZmZmZm Z m Z m Z m Z m Z m!Z! dd l"m#Z# dd l$m%Z% dd l&m'Z'm(Z(m)Z)m*Z* dfZ+ej,� Z-ddd�Z.ej/� dk�r0dd� Z0dd� Zdd� Z1dd� Z2dgdd �Z3d d � Z4d d � Z5d!d"� Z6d#d$� Z7d%d&� Z8dhd'd(�Z9d)d*� Z:d+d,� Z;d-d.� Z<d/d0� Z=d1d2� Z>d3d4� Z?d5d6� Z@eAdi�ZBd9d:� ZCd;d<� ZDd=d>� ZEd?d@� ZFdAdB� ZGdCdD� ZHejIdEdF� �ZJdGdH� ZKdjdIdJ�ZLdKdL� ZMdkdNdO�ZNdPdQ� ZOdRdS� ZPdTjQdU�ZReRdV ZSeRdW ZTdXdY� ZUdZd[� ZVd\d]� ZWejXd^�ZYejXd_�ZZd`da� Z[dbdc� Z\ddde� Z]dS )lz� requests.utils ~~~~~~~~~~~~~~ This module provides utility functions that are used within Requests that are also useful for external consumption. � N� )� __version__)�certs)�to_native_string)�parse_http_list)�quote�urlparse�bytes�str� OrderedDict�unquote� getproxies� proxy_bypass� urlunparse� basestring� integer_types�is_py3�proxy_bypass_environment�getproxies_environment)�cookiejar_from_dict)�CaseInsensitiveDict)� InvalidURL� InvalidHeader�FileModeWarning�UnrewindableBodyError�.netrc�_netrc�P i� )ZhttpZhttpsZWindowsc C s� t rdd l}ndd l}y2|j|jd�}|j|d�d }|j|d�d }W n tk r\ dS X | sj| rndS |jd�}xX|D ]P}|dkr�d| kr�d S |jdd �}|jd d �}|jd d�}t j || t j �r~d S q~W dS )Nr z;Software\Microsoft\Windows\CurrentVersion\Internet SettingsZ ProxyEnableZ ProxyOverrideF�;z<local>�.Tz\.�*z.*�?) r �winreg�_winreg�OpenKey�HKEY_CURRENT_USERZ QueryValueEx�OSError�split�replace�re�match�I)�hostr" ZinternetSettingsZ proxyEnableZ proxyOverrideZtest� r- �/usr/lib/python3.6/utils.py�proxy_bypass_registry. s2 r/ c C s t � rt| �S t| �S dS )z�Return True, if the host should be bypassed. Checks proxy settings gathered from the environment, if specified, or the registry. N)r r r/ )r, r- r- r. r O s r c C s t | d�r| j� } | S )z/Returns an internal sequence dictionary update.�items)�hasattrr0 )�dr- r- r. �dict_to_sequence[ s r3 c C s2 d }d}t | d�r t| �}nbt | d�r.| j}nPt | d�r~y | j� }W n tjk rZ Y n$X tj|�j}d| jkr~t j dt � t | d��ry | j � }W n$ t tfk r� |d k r�|}Y n\X t | d�o�|d k�ry&| jdd � | j � }| j|p�d� W n t tfk �r d}Y nX |d k�r$d}td|| �S ) Nr �__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� )r1 r5 r6 �io�UnsupportedOperation�os�fstat�st_size�mode�warnings�warnr r8 r& �IOErrorr9 �max)�oZ total_lengthZcurrent_positionr6 r- r- r. � super_lend s@ rF Fc C s y�ddl m }m} d}xJtD ]B}ytjjdj|��}W n tk rJ dS X tjj|�r |}P q W |dkrndS t | �}d}t | t �r�|j d�}|j j|�d } y6||�j| �} | r�| d r�dnd} | | | d fS W n |tfk r� |r� Y nX W n ttfk �r Y nX dS ) z;Returns the Requests tuple auth for a given url from netrc.r )�netrc�NetrcParseErrorNz~/{0}� :�asciir r: )rG rH � NETRC_FILESr= �path� expanduser�format�KeyError�existsr � isinstancer �decode�netlocr' ZauthenticatorsrC � ImportError�AttributeError) �urlZ raise_errorsrG rH Z netrc_path�f�locZriZsplitstrr, r Zlogin_ir- r- r. �get_netrc_auth� s8 rY c C sB t | dd�}|r>t|t�r>|d dkr>|d dkr>tjj|�S dS )z0Tries to guess the filename of the given object.�nameNr �<r �>���)�getattrrQ r r= rL �basename)�objrZ r- r- r. �guess_filename� s ra 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') ValueError: need more than 1 value to unpack >>> from_key_val_list({'key': 'val'}) OrderedDict([('key', 'val')]) :rtype: OrderedDict Nz+cannot encode objects that are not 2-tuples)rQ r r �bool�int� ValueErrorr )�valuer- r- r. �from_key_val_list� s rf c C sB | dkr dS t | ttttf�r&td��t | tj�r:| j� } 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 Nz+cannot encode objects that are not 2-tuples) rQ r r rb rc rd � collections�Mappingr0 �list)re r- r- r. �to_key_val_list� s rj c C s\ g }xRt | �D ]F}|dd� |dd� ko4dkn rJt|dd� �}|j|� qW |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 �"r] r] )�_parse_list_header�unquote_header_value�append)re �result�itemr- r- r. �parse_list_header s (rq c C s| i }xrt | �D ]f}d|kr$d||< q|jdd�\}} | dd� | dd� koVdkn rlt| 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 rk r] r] )rl r' rm )re ro rp rZ r- r- r. �parse_dict_header1 s ( rs c C s^ | rZ| d | d ko dkn rZ| dd � } | sF| dd� dkrZ| j dd�j dd�S | S ) z�Unquotes a header value. (Reversal of :func:`quote_header_value`). 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 r rk Nr: z\\�\z\"r] r] )r( )re Z is_filenamer- r- r. rm T s $ rm c C s" i }x| D ]}|j ||j< q W |S )z�Returns a key/value dictionary from a CookieJar. :param cj: CookieJar object to extract cookies from. :rtype: dict )re rZ )�cj� cookie_dictZcookier- r- r. �dict_from_cookiejarm s rw 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 )ru rv r- r- r. �add_dict_to_cookiejar| s rx c C sT t jdt� tjdtjd�}tjdtjd�}tjd�}|j| �|j| � |j| � 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. For more information, please see the discussion on issue #2266. (This warning should only appear once.)z!<meta.*?charset=["\']*(.+?)["\'>])�flagsz+<meta.*?content=["\']*;?charset=(.+?)["\'>]z$^<\?xml.*?encoding=["\']*(.+?)["\'>])rA rB �DeprecationWarningr) �compiler+ �findall)�contentZ charset_reZ pragma_reZxml_rer- r- r. �get_encodings_from_content� s r~ c C sF | j d�}|sdS tj|�\}}d|kr6|d jd�S d|krBdS 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)�get�cgiZ parse_header�strip)�headersZ content_type�paramsr- r- r. �get_encoding_from_headers� s r� c c sr |j dkr"x| D ] }|V qW dS tj|j �dd�}x | D ]}|j|�}|r:|V q:W |jddd�}|rn|V dS )zStream decodes a iterator.Nr( )�errors� T)�final)�encoding�codecs�getincrementaldecoderrR )�iterator�rrp �decoder�chunk�rvr- r- r. � 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)r5 )�stringZ slice_length�posr- r- r. � iter_slices� s r� c C sv t jdt� g }t| j�}|rJy t| j|�S tk rH |j|� 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. 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If 'value' is None, do nothingN)r= �environr� )Zenv_namere Z value_changedZ old_valuer- r- r. � set_environ` s r� c C s dd� }|}|dkr |d�}t | �j}|r�dd� |jdd�jd �D �}|jd �d }t|�r�xb|D ](}t|�r~t||�r�d S qb||krbd S qbW n0x.|D ]&}|j|�s�|jd �d j|�r�d S q�W td|��2 y t |�}W n t t j fk r� d }Y nX W dQ R X |�r d S d S )zL Returns whether we should bypass proxies or not. :rtype: bool c S s t jj| �pt jj| j� �S )N)r= r� r� �upper)�kr- r- r. �<lambda>| s z'should_bypass_proxies.<locals>.<lambda>N�no_proxyc s s | ]}|r|V qd S )Nr- )�.0r, r- r- r. � <genexpr>� s z(should_bypass_proxies.<locals>.<genexpr>� r� �,�:r TF) r rS r( r' r� r� r� �endswithr� r r� r� Zgaierror) rV r� Z get_proxyZ no_proxy_argrS r� Zproxy_ipr, Zbypassr- r- r. �should_bypass_proxiesv s4 r� c C s t | |d�ri S t� S dS )zA Return a dict of environment proxies. :rtype: dict )r� N)r� r )rV r� r- r- r. �get_environ_proxies� s r� c C sv |pi }t | �}|jdkr.|j|j|jd��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 Zhostnamer� �scheme)rV ZproxiesZurlpartsZ proxy_keys�proxyZ 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/%s)r )rZ r- r- r. �default_user_agent� s r� c C s t t� djd�ddd��S )z9 :rtype: requests.structures.CaseInsensitiveDict z, �gzip�deflatez*/*z keep-alive)z User-AgentzAccept-EncodingZAcceptZ Connection)r� r� )r r� r� r- r- r- r. �default_headers� s r� c C s� g }d}x�t jd| �D ]�}y|jdd�\}}W n tk rL |d }}Y nX d|jd�i}xP|jd�D ]B}y|jd�\}} W n tk r� P Y nX | j|�||j|�< qhW |j|� qW |S ) z�Return a dict 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� rV z<> '"rr )r) r' rd r� rn ) re ZlinksZ replace_chars�valrV r� �linkZparam�keyr- r- r. �parse_header_links� s r� � rJ r: � c C s� | dd� }|t jt jfkr dS |dd� t jkr6dS |dd� t jt jfkrRdS |jt�}|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-sigr: 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)�dataZsampleZ nullcountr- r- r. �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 )rV Z new_schemer� rS rL r� �query�fragmentr- r- r. �prepend_scheme_if_needed1 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 r ZusernameZpasswordrU r� )rV ZparsedZauthr- r- r. �get_auth_from_urlB s r� s ^\S[^\r\n]*$|^$z^\S[^\r\n]*$|^$c C sf | \}}t |t�rt}nt}y|j|�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)rQ r �_CLEAN_HEADER_REGEX_BYTE�_CLEAN_HEADER_REGEX_STRr* r r� �type)�headerrZ re Zpatr- r- r. �check_header_validityW s r� c C sF t | �\}}}}}}|s"|| }}|jdd�d }t|||||df�S )zW Given a url remove the fragment and the authentication part. :rtype: str �@r r� r] )r �rsplitr )rV r� rS rL r� r� r� r- r- r. � urldefragauthl s r� 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. r9 Nz;An error occurred when rewinding request body for redirect.z+Unable to rewind request body for redirect.)r^ ZbodyrQ Z_body_positionr rC r& r )Zprepared_requestZ body_seekr- r- r. � rewind_body} s r� )r r )F)FzBABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~)N)r� )^�__doc__r� r� rg � contextlibr; r= �platformr) r� r� rA r r� r Z_internal_utilsr �compatr rl r r r r r r r r r r r r r r Zcookiesr Z structuresr � exceptionsr r r r rK �whereZDEFAULT_CA_BUNDLE_PATHZ DEFAULT_PORTS�systemr/ r3 rF rY ra rf rj rq rs rm rw rx r~ r� r� r� r� � frozensetr� r� r� r� r� r� r� �contextmanagerr� r� r� r� r� r� r� �encoder� r� r� r� r� r� r{ r� r� r� r� r� r- r- r- r. �<module> s� @ ! = 3 # % 9 "