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dY lV mW ZW d S(Z s� HTTP cookie handling for web clients.
This module has (now fairly distant) origins in Gisle Aas' Perl module
HTTP::Cookies, from the libwww-perl library.
Docstrings, comments and debug strings in this code refer to the
attributes of the HTTP cookie system as cookie-attributes, to distinguish
them clearly from Python attributes.
Class diagram (note that BSDDBCookieJar and the MSIE* classes are not
distributed with the Python standard library, but are available from
http://wwwsearch.sf.net/):
CookieJar____
/ \ \
FileCookieJar \ \
/ | \ \ \
MozillaCookieJar | LWPCookieJar \ \
| | \
| ---MSIEBase | \
| / | | \
| / MSIEDBCookieJar BSDDBCookieJar
|/
MSIECookieJar
t Cookiet CookieJart CookiePolicyt DefaultCookiePolicyt
FileCookieJart LWPCookieJart lwp_cookie_strt LoadErrort MozillaCookieJari����N( t timegmc G s; t s
d St s. d d l } | j d � a n t j | � S( Ni����t cookielib( t debugt loggert loggingt getLogger( t argsR
( ( s! /usr/lib64/python2.7/cookielib.pyt _debug+ s sQ a filename was not supplied (nor was the CookieJar instance initialised with one)c C sg d d l } d d l } d d l } | j � } | j d | � | j � } | j d | d d �d S( Ni����s cookielib bug!
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$ i� c C s� | d \ } } } } } } | t k r� d | k o? d k n r� d | k o[ d k n r� d | k ow d k n r� d | k o� d k n r� d | k o� d k n r� t | � Sd Sd S( Ni i i i i i i; i= ( t
EPOCH_YEARR R ( t ttt yeart montht mdayt hourt mint sec( ( s! /usr/lib64/python2.7/cookielib.pyt _timegmH s
DT
t Mont Tuet Wedt Thut Frit Satt Sunt Jant Febt Mart Aprt Mayt Junt Jult Augt Sept Octt Novt Decc C sZ | d k r t j � } n t j | � d \ } } } } } } d | | | | | | f S( sH Return a string representing time in seconds since epoch, t.
If the function is called without an argument, it will use the current
time.
The format of the returned string is like "YYYY-MM-DD hh:mm:ssZ",
representing Universal Time (UTC, aka GMT). An example of this format is:
1994-11-24 08:49:37Z
i s %04d-%02d-%02d %02d:%02d:%02dZN( R t timet gmtime( t tR t monR R! R" R# ( ( s! /usr/lib64/python2.7/cookielib.pyt time2isozV s
%c C sl | d k r t j � } n t j | � d \ } } } } } } } d t | | t | d | | | | f S( s� Return a string representing time in seconds since epoch, t.
If the function is called without an argument, it will use the current
time.
The format of the returned string is like this:
Wed, DD-Mon-YYYY HH:MM:SS GMT
i s" %s %02d-%s-%04d %02d:%02d:%02d GMTi N( R R8 R9 t DAYSt MONTHS( R: R R; R R! R" R# t wday( ( s! /usr/lib64/python2.7/cookielib.pyt
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(t GMTt UTCt UTt Zs ^([-+])?(\d\d?):?(\d\d)?$c C s� d } | t k r d } n t j | � } | r� d t | j d � � } | j d � rx | d t | j d � � } n | j d � d k r� | } q� n | S( Ni i i i i< i t -( R t UTC_ZONESt TIMEZONE_REt searcht intt group( t tzt offsett m( ( s! /usr/lib64/python2.7/cookielib.pyt offset_from_tz_string{ s
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sV ^[SMTWF][a-z][a-z], (\d\d) ([JFMASOND][a-z][a-z]) (\d\d\d\d) (\d\d):(\d\d):(\d\d) GMT$s+ ^(?:Sun|Mon|Tue|Wed|Thu|Fri|Sat)[a-z]*,?\s*s� ^
(\d\d?) # day
(?:\s+|[-\/])
(\w+) # month
(?:\s+|[-\/])
(\d+) # year
(?:
(?:\s+|:) # separator before clock
(\d\d?):(\d\d) # hour:min
(?::(\d\d))? # optional seconds
)? # optional clock
\s*
([-+]?\d{2,4}|(?![APap][Mm]\b)[A-Za-z]+)? # timezone
\s*
(?:\(\w+\))? # ASCII representation of timezone in parens.
\s*$c C s4 t j | � } | r� | j � } t j | d j � � d } t | d � | t | d � t | d � t | d � t | d � f } t | � S| j � } t
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s� Returns time in seconds since epoch of time represented by a string.
Return value is an integer.
None is returned if the format of str is unrecognized, the time is outside
the representable range, or the timezone string is not recognized. If the
string contains no timezone, UTC is assumed.
The timezone in the string may be numerical (like "-0800" or "+0100") or a
string timezone (like "UTC", "GMT", "BST" or "EST"). Currently, only the
timezone strings equivalent to UTC (zero offset) are known to the function.
The function loosely parses the following formats:
Wed, 09 Feb 1994 22:23:32 GMT -- HTTP format
Tuesday, 08-Feb-94 14:15:29 GMT -- old rfc850 HTTP format
Tuesday, 08-Feb-1994 14:15:29 GMT -- broken rfc850 HTTP format
09 Feb 1994 22:23:32 GMT -- HTTP format (no weekday)
08-Feb-94 14:15:29 GMT -- rfc850 format (no weekday)
08-Feb-1994 14:15:29 GMT -- broken rfc850 format (no weekday)
The parser ignores leading and trailing whitespace. The time may be
absent.
If the year is given with only 2 digits, the function will select the
century that makes the year closest to the current date.
i i i i i i t i N( t STRICT_DATE_RERH t groupsRO RP RQ RI t floatR$ t lstript
WEEKDAY_REt subR t LOOSE_HTTP_DATE_RER\ ( t textRM t gR; R RV RW RX R" R# RK ( ( s! /usr/lib64/python2.7/cookielib.pyt http2time� s -
" $s� ^
(\d{4}) # year
[-\/]?
(\d\d?) # numerical month
[-\/]?
(\d\d?) # day
(?:
(?:\s+|[-:Tt]) # separator before clock
(\d\d?):?(\d\d) # hour:min
(?::?(\d\d(?:\.\d*)?))? # optional seconds (and fractional)
)? # optional clock
\s*
([-+]?\d\d?:?(:?\d\d)?
|Z|z)? # timezone (Z is "zero meridian", i.e. GMT)
\s*$c
C s� | j � } d g d \ } } } } } } } t j | � } | d k rp | j � \ } } } } } } } } n d St | | | | | | | � S( sv
As for http2time, but parses the ISO 8601 formats:
1994-02-03 14:15:29 -0100 -- ISO 8601 format
1994-02-03 14:15:29 -- zone is optional
1994-02-03 -- only date
1994-02-03T14:15:29 -- Use T as separator
19940203T141529Z -- ISO 8601 compact format
19940203 -- only date
i N( Ra R t ISO_DATE_RERH R_ R\ (
Re RV R; RW RX R" R# RK RM t _( ( s! /usr/lib64/python2.7/cookielib.pyt iso2time s
" 'c C s+ | j d � \ } } | j | | j | S( s) Return unmatched part of re.Match object.i ( t spant string( t matcht startt end( ( s! /usr/lib64/python2.7/cookielib.pyt unmatched= s s ^\s*([^=\s;,]+)s& ^\s*=\s*\"([^\"\\]*(?:\\.[^\"\\]*)*)\"s ^\s*=\s*([^\s;,]*)s \\(.)c
C s g } xr| D]j} | } g } x?| r`t j | � } | r� t | � } | j d � } t j | � } | r� t | � } | j d � } t j d | � } nE t j | � } | r� t | � } | j d � } | j � } n d } | j
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q
W| S( sm Parse header values into a list of lists containing key,value pairs.
The function knows how to deal with ",", ";" and "=" as well as quoted
values after "=". A list of space separated tokens are parsed as if they
were separated by ";".
If the header_values passed as argument contains multiple values, then they
are treated as if they were a single value separated by comma ",".
This means that this function is useful for parsing header fields that
follow this syntax (BNF as from the HTTP/1.1 specification, but we relax
the requirement for tokens).
headers = #header
header = (token | parameter) *( [";"] (token | parameter))
token = 1*<any CHAR except CTLs or separators>
separators = "(" | ")" | "<" | ">" | "@"
| "," | ";" | ":" | "\" | <">
| "/" | "[" | "]" | "?" | "="
| "{" | "}" | SP | HT
quoted-string = ( <"> *(qdtext | quoted-pair ) <"> )
qdtext = <any TEXT except <">>
quoted-pair = "\" CHAR
parameter = attribute "=" value
attribute = token
value = token | quoted-string
Each header is represented by a list of key/value pairs. The value for a
simple token (not part of a parameter) is None. Syntactically incorrect
headers will not necessarily be parsed as you would want.
This is easier to describe with some examples:
>>> split_header_words(['foo="bar"; port="80,81"; discard, bar=baz'])
[[('foo', 'bar'), ('port', '80,81'), ('discard', None)], [('bar', 'baz')]]
>>> split_header_words(['text/html; charset="iso-8859-1"'])
[[('text/html', None), ('charset', 'iso-8859-1')]]
>>> split_header_words([r'Basic realm="\"foo\bar\""'])
[[('Basic', None), ('realm', '"foobar"')]]
i s \1t ,s ^[=\s;]*R] N( t HEADER_TOKEN_RERH Rp RJ t HEADER_QUOTED_VALUE_REt HEADER_ESCAPE_RERc t HEADER_VALUE_REt rstripR t appendRa t
startswitht ret subn(
t
header_valuest resultRe t orig_textt pairsRM t namet valuet non_junkt
nr_junk_chars( ( s! /usr/lib64/python2.7/cookielib.pyt split_header_wordsF s> .
s ([\"\\])c C s� g } x� | D]� } g } xq | D]i \ } } | d k r| t j d | � si t j d | � } d | } n d | | f } n | j | � q W| r
| j d j | � � q
q
Wd j | � S( s� Do the inverse (almost) of the conversion done by split_header_words.
Takes a list of lists of (key, value) pairs and produces a single header
value. Attribute values are quoted if needed.
>>> join_header_words([[("text/plain", None), ("charset", "iso-8859/1")]])
'text/plain; charset="iso-8859/1"'
>>> join_header_words([[("text/plain", None)], [("charset", "iso-8859/1")]])
'text/plain, charset="iso-8859/1"'
s ^\w+$s \\\1s "%s"s %s=%ss ; s , N( R Ry RH t HEADER_JOIN_ESCAPE_RERc Rw t join( t listst headersR~ t attrt kt v( ( s! /usr/lib64/python2.7/cookielib.pyt join_header_words� s
c C s< | j d � r | d } n | j d � r8 | d } n | S( Nt "i i����( Rx t endswith( Re ( ( s! /usr/lib64/python2.7/cookielib.pyt
_strip_quotes� s
c C sh d } g } xU| D]M} g } t } x t t j d | � � D]� \ } } | j � } | d k rh q> n d
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t | � � } q n | j | | f � q> W| r | sP| j d � n | j | � q q W| S( s5 Ad-hoc parser for Netscape protocol cookie-attributes.
The old Netscape cookie format for Set-Cookie can for instance contain
an unquoted "," in the expires field, so we have to use this ad-hoc
parser instead of split_header_words.
XXX This may not make the best possible effort to parse all the crap
that Netscape Cookie headers contain. Ronald Tschalar's HTTPClient
parser is probably better, so could do worse than following that if
this ever gives any trouble.
Currently, this is also used for parsing RFC 2109 cookies.
t expirest domaint patht securet versiont ports max-ages ;\s*R] t =s \s*=\s*i i t 0( s expiress domains paths secures versions ports max-ageN( s versionR� ( t Falset enumerateRy t splitRv R Ra RQ R� t TrueRg Rw ( t
ns_headerst known_attrsR| t ns_headerR~ t version_sett iit paramR� R� t lc( ( s! /usr/lib64/python2.7/cookielib.pyt parse_ns_headers� s:
% s \.\d+$c C sK t j | � r t S| d k r# t S| d d k sC | d d k rG t St S( s* Return True if text is a host domain name.R] i t .i����( t IPV4_RERH R� R� ( Re ( ( s! /usr/lib64/python2.7/cookielib.pyt is_HDN� s c C s� | j � } | j � } | | k r( t St | � s8 t S| j | � } | d k s_ | d k rc t S| j d � sv t St | d � s� t St S( s� Return True if domain A domain-matches domain B, according to RFC 2965.
A and B may be host domain names or IP addresses.
RFC 2965, section 1:
Host names can be specified either as an IP address or a HDN string.
Sometimes we compare one host name with another. (Such comparisons SHALL
be case-insensitive.) Host A's name domain-matches host B's if
* their host name strings string-compare equal; or
* A is a HDN string and has the form NB, where N is a non-empty
name string, B has the form .B', and B' is a HDN string. (So,
x.y.com domain-matches .Y.com but not Y.com.)
Note that domain-match is not a commutative operation: a.b.c.com
domain-matches .c.com, but not the reverse.
i����i R� i ( RQ R� R� R� t rfindRx ( t At Bt i( ( s! /usr/lib64/python2.7/cookielib.pyt domain_match s c C s t j | � r t St S( sd Return True if text is a sort-of-like a host domain name.
For accepting/blocking domains.
( R� RH R� R� ( Re ( ( s! /usr/lib64/python2.7/cookielib.pyt liberal_is_HDN' s c C s� | j � } | j � } t | � o- t | � sD | | k r@ t St S| j d � } | rl | j | � rl t S| r� | | k r� t St S( s\ For blocking/accepting domains.
A and B may be host domain names or IP addresses.
R� ( RQ R� R� R� Rx R� ( R� R� t initial_dot( ( s! /usr/lib64/python2.7/cookielib.pyt user_domain_match1 s s :\d+$c C s_ | j � } t j | � d } | d k r@ | j d d � } n t j d | d � } | j � S( s� Return request-host, as defined by RFC 2965.
Variation from RFC: returned value is lowercased, for convenient
comparison.
i R] t Host( t get_full_urlt urlparset
get_headert cut_port_reRc RQ ( t requestt urlt host( ( s! /usr/lib64/python2.7/cookielib.pyt request_hostF s c C sL t | � } } | j d � d k rB t j | � rB | d } n | | f S( sz Return a tuple (request-host, effective request-host name).
As defined by RFC 2965, except both are lowercased.
R� i����s .local( R� t findR� RH ( R� t erhnt req_host( ( s! /usr/lib64/python2.7/cookielib.pyt eff_request_hostV s %
c C sJ | j � } t j | � } t | j � } | j d � sF d | } n | S( s6 Path component of request-URI, as defined by RFC 2965.t /( R� R� t urlsplitt escape_pathR� Rx ( R� R� t partsR� ( ( s! /usr/lib64/python2.7/cookielib.pyt request_patha s
c C sr | j � } | j d � } | d k rh | | d } y t | � Wqn t k
rd t d | � d SXn t } | S( Nt :i i s nonnumeric port: '%s'( t get_hostR� RI RR R R t DEFAULT_HTTP_PORT( R� R� R� R� ( ( s! /usr/lib64/python2.7/cookielib.pyt request_portk s
s %/;:@&=+$,!~*'()s %([0-9a-fA-F][0-9a-fA-F])c C s d | j d � j � S( Ns %%%si ( RJ RU ( Rm ( ( s! /usr/lib64/python2.7/cookielib.pyt uppercase_escaped_char} s c C sI t | t � r! | j d � } n t j | t � } t j t | � } | S( sE Escape any invalid characters in HTTP URL, and uppercase all escapes.s utf-8( t
isinstancet unicodet encodet urllibt quotet HTTP_PATH_SAFEt ESCAPED_CHAR_RERc R� ( R� ( ( s! /usr/lib64/python2.7/cookielib.pyR� s
c C sk | j d � } | d k rg | | d } | j d � } t | � rg | d k s\ | d k rg d | Sn | S( sB Return reach of host h, as defined by RFC 2965, section 1.
The reach R of a host name H is defined as follows:
* If
- H is the host domain name of a host; and,
- H has the form A.B; and
- A has no embedded (that is, interior) dots; and
- B has at least one embedded dot, or B is the string "local".
then the reach of H is .B.
* Otherwise, the reach of H is H.
>>> reach("www.acme.com")
'.acme.com'
>>> reach("acme.com")
'acme.com'
>>> reach("acme.local")
'.local'
R� i i t local( R� R� ( t hR� t b( ( s! /usr/lib64/python2.7/cookielib.pyt reach� s $ c C s3 t | � } t | t | j � � � s+ t St Sd S( s�
RFC 2965, section 3.3.6:
An unverifiable transaction is to a third-party host if its request-
host U does not domain-match the reach R of the request-host O in the
origin transaction.
N( R� R� R� t get_origin_req_hostR� R� ( R� R� ( ( s! /usr/lib64/python2.7/cookielib.pyt is_third_party� s
c B sV e Z d Z e d � Z d � Z d d � Z d � Z d d � Z d � Z
d � Z RS( s� HTTP Cookie.
This class represents both Netscape and RFC 2965 cookies.
This is deliberately a very simple class. It just holds attributes. It's
possible to construct Cookie instances that don't comply with the cookie
standards. CookieJar.make_cookies is the factory function for Cookie
objects -- it deals with cookie parsing, supplying defaults, and
normalising to the representation used in this class. CookiePolicy is
responsible for checking them to see whether they should be accepted from
and returned to the server.
Note that the port may be present in the headers, but unspecified ("Port"
rather than"Port=80", for example); if this is the case, port is None.
c C s | d k r t | � } n | d k r6 t | � } n | d k r] | t k r] t d � � n | | _ | | _ | | _ | | _ | | _ | j � | _
| | _ | | _ | | _
|
| _ | | _ | | _ |
| _ | | _ | | _ | | _ t j | � | _ d S( Ns- if port is None, port_specified must be false( R RI R� RR R� R R� R� t port_specifiedRQ R� t domain_specifiedt domain_initial_dotR� t path_specifiedR� R� t discardt commentt comment_urlt rfc2109t copyt _rest( t selfR� R R� R� R� R� R� R� R� R� R� R� R� R� R� t restR� ( ( s! /usr/lib64/python2.7/cookielib.pyt __init__� s.
c C s
| | j k S( N( R� ( R� R ( ( s! /usr/lib64/python2.7/cookielib.pyt has_nonstandard_attr� s c C s | j j | | � S( N( R� t get( R� R t default( ( s! /usr/lib64/python2.7/cookielib.pyt get_nonstandard_attr s c C s | | j | <d S( N( R� ( R� R R� ( ( s! /usr/lib64/python2.7/cookielib.pyt set_nonstandard_attr s c C sA | d k r t j � } n | j d k r= | j | k r= t St S( N( R R8 R� R� R� ( R� t now( ( s! /usr/lib64/python2.7/cookielib.pyt
is_expired s
c C sx | j d k r d } n
d | j } | j | | j } | j d k ra d | j | j f } n | j } d | | f S( NR] R� s %s=%ss <Cookie %s for %s>( R� R R� R� R� R ( R� t pt limitt namevalue( ( s! /usr/lib64/python2.7/cookielib.pyt __str__ s
c C s� g } x: d D]2 } t | | � } | j d | t | � f � q
W| j d t | j � � | j d t | j � � d d j | � S( NR� R R� R� R� R� R� R� R� R� R� R� R� R� R� s %s=%ss rest=%ss
rfc2109=%ss
Cookie(%s)s , ( s versions names values ports port_specifieds domains domain_specifieds domain_initial_dots paths path_specifieds secures expiress discards comments comment_url( t getattrRw t reprR� R� R� ( R� R R R� ( ( s! /usr/lib64/python2.7/cookielib.pyt __repr__ s
!N( t __name__t
__module__t __doc__R� R� R� R R� R� R� R� R� ( ( ( s! /usr/lib64/python2.7/cookielib.pyR � s
c B s2 e Z d Z d � Z d � Z d � Z d � Z RS( s Defines which cookies get accepted from and returned to server.
May also modify cookies, though this is probably a bad idea.
The subclass DefaultCookiePolicy defines the standard rules for Netscape
and RFC 2965 cookies -- override that if you want a customised policy.
c C s
t � � d S( s� Return true if (and only if) cookie should be accepted from server.
Currently, pre-expired cookies never get this far -- the CookieJar
class deletes such cookies itself.
N( t NotImplementedError( R� t cookieR� ( ( s! /usr/lib64/python2.7/cookielib.pyt set_ok. s c C s
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You may not need to know about this class: try
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| j } n | j | � q�q, q, W| S( s� Return a list of cookie-attributes to be returned to server.
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| f � q W| S( s Return list of tuples containing normalised cookie information.
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cookie name and value, standard is a dictionary containing the standard
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c C s� | \ } } } } | j d t � } | j d t � } | j d t � } | j d t � }
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c C ss t | j d d � } | d k r1 | j j } n x; | D]3 } | j d k r8 t | _ | rk d | _ qk q8 q8 Wd S( NR� i i ( R� RT R R� R� R� R� ( R� R[ t
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Invoking this method without arguments will clear all cookies. If
given a single argument, only cookies belonging to that domain will be
removed. If given two arguments, cookies belonging to the specified
path within that domain are removed. If given three arguments, then
the cookie with the specified name, path and domain is removed.
Raises KeyError if no matching cookie exists.
s8 domain and path must be given to remove a cookie by names. domain must be given to remove cookies by pathN( R RR RX ( R� R� R� R ( ( s! /usr/lib64/python2.7/cookielib.pyR{ z s
c C s_ | j j � z= x6 | D]. } | j r | j | j | j | j � q q WWd | j j � Xd S( s� Discard all session cookies.
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You probably don't need to call this method: expired cookies are never
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