| Current File : //lib/python2.7/site-packages/requests/utils.pyc |
�
YЅ_c @ s� d Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l
Z
d d l Z d d l m
Z
d d l m Z d d l m Z d d l m Z m Z m Z m Z m Z m Z m Z m Z m Z m Z m Z m Z d d l m Z m Z d d l! m" Z" d d
l# m$ Z$ e f Z% d8 Z& e j' � Z( i d
d 6d d 6Z) d � Z* d � Z+ d � Z, d � Z- d � Z. d � Z/ d � Z0 d � Z1 e2 d � Z3 d � Z4 d � Z5 d � Z6 d � Z7 d � Z8 d � Z9 d � Z: e; d! d" � Z< d# � Z= d$ � Z> d% � Z? d& � Z@ d' � ZA d( � ZB d) � ZC d* � ZD d+ d, � ZE d- � ZF d. � ZG d/ jH d0 � ZI eI d1 ZJ eI d2 ZK d3 � ZL d4 � ZM d5 � ZN d0 d6 � ZO d7 � ZP d S(9 s�
requests.utils
~~~~~~~~~~~~~~
This module provides utility functions that are used within Requests
that are also useful for external consumption.
i����Ni ( t __version__( t certs( t parse_http_list( t quotet urlparset bytest strt OrderedDictt unquotet is_py2t builtin_strt
getproxiest proxy_bypasst
urlunparset
basestring( t RequestsCookieJart cookiejar_from_dict( t CaseInsensitiveDict( t
InvalidURLs .netrct _netrciP t httpi� t httpsc C s" t | d � r | j � } n | S( s/ Returns an internal sequence dictionary update.t items( t hasattrR ( t d( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt dict_to_sequence+ s c C s� t | d � r t | � St | d � r/ | j St | d � rx y | j � } Wn t j k
rd qx Xt j | � j Sn t | d � r� t | j � � Sd S( Nt __len__t lent filenot getvalue( R R R t iot UnsupportedOperationt ost fstatt st_sizeR ( t oR ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt super_len4 s
c
C s2 yd d l m } m } d } x^ t D]V } y t j j d j | � � } Wn t k
r_ d SXt j j | � r& | } Pq& q& W| d k r� d St
| � } | j j d � d } yG | | � j
| � } | r� | d r� d n d } | | | d f SWn | t f k
rn XWn t t f k
r-n Xd S( s; Returns the Requests tuple auth for a given url from netrc.i����( t netrct NetrcParseErrors ~/{0}Nt :i i i ( R% R& t Nonet NETRC_FILESR t patht
expandusert formatt KeyErrort existsR t netloct splitt authenticatorst IOErrort ImportErrort AttributeError(
t urlR% R& t
netrc_patht ft loct rit hostR t login_i( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt get_netrc_authH s0
c C s[ t | d d � } | rW t | t � rW | d d k rW | d d k rW t j j | � Sd S( s0 Tries to guess the filename of the given object.t namei t <i����t >N( t getattrR( t
isinstanceR R R* t basename( t objR= ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt guess_filenamev s %c C sD | d k r d St | t t t t f � r: t d � � n t | � S( s� 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')])
s+ cannot encode objects that are not 2-tuplesN( R( RA R R t boolt intt
ValueErrorR ( t value( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt from_key_val_list~ s
c C se | d k r d St | t t t t f � r: t d � � n t | t j � r[ | j � } n t
| � S( sz 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.
s+ cannot encode objects that are not 2-tuplesN( R( RA R R RE RF RG t collectionst MappingR t list( RH ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt to_key_val_list� s
c C sh g } x[ t | � D]M } | d | d k o8 d k n rS t | d d !� } n | j | � q W| S( s� 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`
i i����t "( t _parse_list_headert unquote_header_valuet append( RH t resultt item( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt parse_list_header� s $c C s� i } x� t | � D]~ } d | k r5 d | | <q n | j d d � \ } } | d | d k ol d k n r� t | d d !� } n | | | <q W| S( sM 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`
t =i i����RN N( RO R( R0 RP ( RH RR RS R= ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt parse_dict_header� s
$c C sq | rm | d | d k o% d k n rm | d d !} | sN | d d k rm | j d d � j d d � Sn | S( s� Unquotes a header value. (Reversal of :func:`quote_header_value`).
This does not use the real unquoting but what browsers are actually
using for quoting.
:param value: the header value to unquote.
i i����RN i i s \\s \s \"( t replace( RH t is_filename( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyRP � s
*
c C s+ i } x | D] } | j | | j <q
W| S( so Returns a key/value dictionary from a CookieJar.
:param cj: CookieJar object to extract cookies from.
( RH R= ( t cjt cookie_dictt cookie( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt dict_from_cookiejar s
c C s t | � } | j | � | S( s� Returns a CookieJar from a key/value dictionary.
:param cj: CookieJar to insert cookies into.
:param cookie_dict: Dict of key/values to insert into CookieJar.
( R t update( RY RZ t cj2( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt add_dict_to_cookiejar s
c C sv t j d t � t j d d t j �} t j d d t j �} t j d � } | j | � | j | � | j | � S( sl Returns encodings from given content string.
:param content: bytestring to extract encodings from.
s� In requests 3.0, get_encodings_from_content will be removed. For more information, please see the discussion on issue #2266. (This warning should only appear once.)s! <meta.*?charset=["\']*(.+?)["\'>]t flagss+ <meta.*?content=["\']*;?charset=(.+?)["\'>]s$ ^<\?xml.*?encoding=["\']*(.+?)["\'>]( t warningst warnt DeprecationWarningt ret compilet It findall( t contentt
charset_ret pragma_ret xml_re( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt get_encodings_from_content" s c C s_ | j d � } | s d St j | � \ } } d | k rK | d j d � Sd | k r[ d Sd S( sm Returns encodings from given HTTP Header Dict.
:param headers: dictionary to extract encoding from.
s content-typet charsets '"t texts
ISO-8859-1N( t getR( t cgit parse_headert strip( t headerst content_typet params( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt get_encoding_from_headers6 s c c s� | j d k r) x | D] } | Vq Wd St j | j � d d � } x+ | D]# } | j | � } | rK | VqK qK W| j d d t �} | r� | Vn d S( s Stream decodes a iterator.Nt errorsRW t t final( t encodingR( t codecst getincrementaldecodert decodet True( t iteratort rRS t decodert chunkt rv( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt stream_decode_response_unicodeJ s
c c s= d } x0 | t | � k r8 | | | | !V| | 7} q Wd S( s Iterate over slices of a string.i N( R ( t stringt slice_lengtht pos( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt iter_slices\ s c C s� t j d t � g } t | j � } | rc y t | j | � SWqc t k
r_ | j | � qc Xn y t | j | d d �SWn t k
r� | j SXd S( s� 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
s� 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.)Rw RW N(
Ra Rb Rc Rv Rs R Rh t UnicodeErrorRQ t TypeError( R� t tried_encodingsRz ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt get_unicode_from_responsed s
t4 ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzs 0123456789-._~c C s� | j d � } x� t d t | � � D]� } | | d d !} t | � d k r� | j � r� y t t | d � � } Wn! t k
r� t d | � � n X| t k r� | | | d | | <q� d | | | | <q% d | | | | <q% Wd j | � S( s� Un-escape any percent-escape sequences in a URI that are unreserved
characters. This leaves all reserved, illegal and non-ASCII bytes encoded.
t %i i i i s% Invalid percent-escape sequence: '%s'Rx (
R0 t rangeR t isalnumt chrRF RG R t UNRESERVED_SETt join( t urit partst it ht c( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt unquote_unreserved� s
c C sK d } d } y t t | � d | �SWn t k
rF t | d | �SXd S( s� 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.
s !#$%&'()*+,/:;=?@[]~s !#$&'()*+,/:;=?@[]~t safeN( R R� R ( R� t safe_with_percentt safe_without_percent( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt requote_uri� s
c C s� t j d t j | � � d } | j d � \ } } t j d t j t t | � � � � d } t j d t j | � � d | @} | | @| | @k S( s�
This function allows you to check if on 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
s =Li t /( t structt unpackt sockett inet_atonR0 t dotted_netmaskRF ( t ipt nett ipaddrt netaddrt bitst netmaskt network( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt address_in_network� s
+#c C s/ d d d | >d A} t j t j d | � � S( st
Converts mask from /xx format to xxx.xxx.xxx.xxx
Example: if mask is 24 function returns 255.255.255.0
l �� i i s >I( R� t inet_ntoaR� t pack( t maskR� ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyR� � s c C s- y t j | � Wn t j k
r( t SXt S( N( R� R� t errort FalseR~ ( t string_ip( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt is_ipv4_address� s
c C s� | j d � d k r� y t | j d � d � } Wn t k
rF t SX| d k s_ | d k rc t Sy t j | j d � d � Wq� t j k
r� t SXn t St S( s9 Very simple check of the cidr format in no_proxy variableR� i i i ( t countRF R0 RG R� R� R� R� R~ ( t string_networkR� ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt
is_valid_cidr� s
c C s d � } | d � } t | � j } | r� | j d d � j d � } | j d � d } t | � r� xs | D]( } t | � rk t | | � r� t Sqk qk Wq� x@ | D]5 } | j | � s� | j d � d j | � r� t Sq� Wn y t | � } Wn t
t j f k
rt
} n X| rt St
S( s:
Returns whether we should bypass proxies or not.
c S s( t j j | � p' t j j | j � � S( N( R t environRo t upper( t k( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt <lambda>� s t no_proxyt Rx t ,R' i ( R R/ RW R0 R� R� R� R~ t endswithR R� R� t gaierrorR� ( R5 t get_proxyR� R/ R� t proxy_ipR: t bypass( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt should_bypass_proxies� s*
+
c C s t | � r i St � Sd S( s% Return a dict of environment proxies.N( R� R ( R5 ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt get_environ_proxies s s python-requestsc C s7 t j � } | d k r' t j � } n� | d k r� d t j j t j j t j j f } t j j d k r� d j | t j j g � } q� n< | d k r� t j � } n! | d k r� t j � } n d } y t j
� } t j � } Wn t k
rd } d } n Xd j d
| t
f d
| | f d
| | f g � S( s4 Return a string representing the default user agent.t CPythont PyPys %s.%s.%sRy Rx t Jythont
IronPythont UnknownR� s %s/%s( t platformt python_implementationt python_versiont syst pypy_version_infot majort minort microt releaselevelR� t systemt releaseR2 R ( R= t _implementationt _implementation_versiont p_systemt p_release( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt default_user_agent s. !
c C s2 t i t � d 6d j d
� d 6d d 6d d 6� S( Ns
User-Agents , t gzipt deflates Accept-Encodings */*t Accepts
keep-alivet
Connection( R� R� ( R R� R� ( ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt default_headers= s
c C s� g } d } x� t j d | � D]� } y | j d d � \ } } Wn t k
ra | d } } n Xi } | j d � | d <xa | j d � D]P } y | j d � \ } } Wn t k
r� Pn X| j | � | | j | � <q� W| j | � q W| S( s� 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"
s '"s , *<t ;i Rx s <> '"R5 RU ( Rd R0 RG Rr RQ ( RH t linkst
replace_charst valR5 Ru t linkt paramt key( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt parse_header_linksF s"
t t asciii i c C s | d } | t j t j f k r& d S| d t j k r= d S| d t j t j f k r] d S| j t � } | d k r| d S| d k r� | d d d � t k r� d S| d
d d � t k r� d Sn | d k r� | d t k r� d S| d
t k r� d
Sn d S( Ni s utf-32i s utf-8-sigi s utf-16i s utf-8s utf-16-bei s utf-16-les utf-32-bes utf-32-le( R{ t BOM_UTF32_LEt BOM32_BEt BOM_UTF8t BOM_UTF16_LEt BOM_UTF16_BER� t _nullt _null2t _null3R( ( t datat samplet nullcount( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt guess_json_utfn s*
c C sS t | | � \ } } } } } } | s7 | | } } n t | | | | | | f � S( s� 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.( R R
( R5 t
new_schemet schemeR/ R* Ru t queryt fragment( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt prepend_scheme_if_needed� s !c C sR t | � } y" t | j � t | j � f } Wn t t f k
rM d } n X| S( s_ Given a url with authentication components, extract them into a tuple of
username,password.Rx ( Rx Rx ( R R t usernamet passwordR4 R� ( R5 t parsedt auth( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt get_auth_from_url� s "
c C sI d } t | t � r | } n' t r6 | j | � } n | j | � } | S( s�
Given a string object, regardless of type, returns a representation of that
string in the native string type, encoding and decoding where necessary.
This assumes ASCII unless told otherwise.
N( R( RA R
R t encodeR} ( R� Rz t out( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt to_native_string� s c C sf t | � \ } } } } } } | s4 | | } } n | j d d � d } t | | | | | d f � S( sE
Given a url remove the fragment and the authentication part
t @i i����Rx ( R t rsplitR
( R5 R� R/ R* Ru R� R� ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt
urldefragauth� s
( s .netrcs _netrc(Q t __doc__Rp R{ RJ R R R� Rd R� R� R� Ra Rx R R t compatR RO R R R R R R R R
R R R
R t cookiesR R t
structuresR t
exceptionsR t _hush_pyflakesR) t wheret DEFAULT_CA_BUNDLE_PATHt
DEFAULT_PORTSR R$ R< RD RI RM RT RV R� RP R\ R_ Rl Rv R� R� R� t frozensetR� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R� R R ( ( ( s2 /usr/lib/python2.7/site-packages/requests/utils.pyt <module>
sx R . " $
- #