^Rc @sdZddddddddd g Zd d lZd d lZd d lZd d lZd d lZyd d lZWne k rd d l ZnXd d l Z d d l m Z eZead Zee jZdZdZdZdZdddddddgZdddddddd d!d"d#d$g ZgZx!eD]ZejejqCWed%Z ed&Z!ied'6ed(6ed)6ed*6Z"ej#d+Z$d,Z%d-Z&ej#d.Z'ej#d/ej(Z)ej#d0ej*Z+d1Z,ej#d2ej*Z-d3Z.d4Z/ej#d5Z0ej#d6Z1ej#d7Z2ej#d8Z3d9Z4ej#d:Z5d;Z6d<Z7d=Z8ej#d>Z9d?Z:d@Z;dAZ<dBZ=ej#dCZ>dDZ?dEZ@dFZAdGZBdHZCej#dIZDdJZEdKZFdLZGdMZHdfdNYZIdfdOYZJdeJfdPYZKdQZLdRZMdSfdTYZNdfdUYZOdePfdVYZQdeOfdWYZRd dXlSmTZTmUZUd dYlVmWZWd S(ZsHTTP 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 tCookiet CookieJart CookiePolicytDefaultCookiePolicyt FileCookieJart LWPCookieJartlwp_cookie_strt LoadErrortMozillaCookieJariN(ttimegmcGs;ts dSts.ddl}|jdantj|S(Nit cookielib(tdebugtloggertloggingt getLogger(targsR ((s/usr/lib/python2.7/cookielib.pyt_debug+s  sQa filename was not supplied (nor was the CookieJar instance initialised with one)cCsgddl}ddl}ddl}|j}|jd||j}|jd|dddS(Niscookielib bug! %st stackleveli(twarningst tracebacktStringIOt print_exctNonetgetvaluetwarn(RRRtftmsg((s/usr/lib/python2.7/cookielib.pyt_warn_unhandled_exception9s $  ic Cs|d \}}}}}}|tkrd|ko?dknrd|ko[dknrd|kowdknrd|kodknrd|kodknrt|SdSdS( Niii iiii;i=(t EPOCH_YEARR R(ttttyeartmonthtmdaythourtmintsec((s/usr/lib/python2.7/cookielib.pyt_timegmHs DT tMontTuetWedtThutFritSattSuntJantFebtMartAprtMaytJuntJultAugtSeptOcttNovtDeccCsZ|dkrtj}ntj|d \}}}}}}d||||||fS(sHReturn 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 is%04d-%02d-%02d %02d:%02d:%02dZN(Rttimetgmtime(ttRtmonR R!R"R#((s/usr/lib/python2.7/cookielib.pyt time2isozVs %cCsl|dkrtj}ntj|d \}}}}}}}dt||t|d||||fS(sReturn 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 is"%s %02d-%s-%04d %02d:%02d:%02d GMTiN(RR8R9tDAYStMONTHS(R:RR;R R!R"R#twday((s/usr/lib/python2.7/cookielib.pyt time2netscapegs (tGMTtUTCtUTtZs^([-+])?(\d\d?):?(\d\d)?$cCsd}|tkrd}ntj|}|rdt|jd}|jdrx|dt|jd}n|jddkr| }qn|S(Niiiii<it-(Rt UTC_ZONESt TIMEZONE_REtsearchtinttgroup(ttztoffsettm((s/usr/lib/python2.7/cookielib.pytoffset_from_tz_string{s    c Csytj|jd}Wn_tk r~yt|}Wntk rQdSXd|koidknrw|}qdSnX|dkrd}n|dkrd}n|dkrd}nt|}t|}t|}t|}t|}|dkrtjtjd}|d} |} ||| }| | } t| dkr| dkrr|d}q|d}qnt |||||||f} | dk r|dkrd}n|j }t |} | dkrdS| | } n| S(Nii iiidi2RB( t MONTHS_LOWERtindextlowert ValueErrorRIRR8t localtimetabsR$tupperRN( tdayR;tyrthrR"R#RKtimontcur_yrRMttmpR:RL((s/usr/lib/python2.7/cookielib.pyt _str2timesR               !       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*$c Cs4tj|}|r|j}tj|djd}t|d|t|dt|dt|dt|df}t|S|j }t j d|d}d gd\}}}}}} } t j|}|d k r|j\}}}}}} } nd St|||||| | S( sReturns time in seconds since epoch of time represented by a string. Return value is an integer. None is returned if the format of str is unrecognized, the time is outside the representable range, or the timezone string is not recognized. If the string contains no timezone, UTC is assumed. The timezone in the string may be numerical (like "-0800" or "+0100") or a string timezone (like "UTC", "GMT", "BST" or "EST"). Currently, only the timezone strings equivalent to UTC (zero offset) are known to the function. The function loosely parses the following formats: Wed, 09 Feb 1994 22:23:32 GMT -- HTTP format Tuesday, 08-Feb-94 14:15:29 GMT -- old rfc850 HTTP format Tuesday, 08-Feb-1994 14:15:29 GMT -- broken rfc850 HTTP format 09 Feb 1994 22:23:32 GMT -- HTTP format (no weekday) 08-Feb-94 14:15:29 GMT -- rfc850 format (no weekday) 08-Feb-1994 14:15:29 GMT -- broken rfc850 format (no weekday) The parser ignores leading and trailing whitespace. The time may be absent. If the year is given with only 2 digits, the function will select the century that makes the year closest to the current date. iiiiiitiN(tSTRICT_DATE_RERHtgroupsRORPRQRItfloatR$tlstript WEEKDAY_REtsubRtLOOSE_HTTP_DATE_RER\( ttextRMtgR;RRVRWRXR"R#RK((s/usr/lib/python2.7/cookielib.pyt http2times -  " $s^ (\d{4}) # year [-\/]? (\d\d?) # numerical month [-\/]? (\d\d?) # day (?: (?:\s+|[-:Tt]) # separator before clock (\d\d?):?(\d\d) # hour:min (?::?(\d\d(?:\.\d*)?))? # optional seconds (and fractional) )? # optional clock \s* ([-+]?\d\d?:?(:?\d\d)? |Z|z)? # timezone (Z is "zero meridian", i.e. GMT) \s*$c Cs|j}dgd\}}}}}}}tj|}|dk rp|j\}}}}}}}} ndSt|||||||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 iN(RaRt ISO_DATE_RERHR_R\( ReRVR;RWRXR"R#RKRMt_((s/usr/lib/python2.7/cookielib.pytiso2times " 'cCs+|jd\}}|j| |j|S(s)Return unmatched part of re.Match object.i(tspantstring(tmatchtstarttend((s/usr/lib/python2.7/cookielib.pyt unmatched=ss^\s*([^=\s;,]+)s&^\s*=\s*\"([^\"\\]*(?:\\.[^\"\\]*)*)\"s^\s*=\s*([^\s;,]*)s\\(.)c Csg}xr|D]j}|}g}x?|r`tj|}|rt|}|jd}tj|}|rt|}|jd}tjd|}nEtj|}|rt|}|jd}|j}nd}|j ||fq"|j j dr<|j d}|r3|j |ng}q"t jdd|\}} |}q"W|r |j |q q W|S(smParse 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* separators = "(" | ")" | "<" | ">" | "@" | "," | ";" | ":" | "\" | <"> | "/" | "[" | "]" | "?" | "=" | "{" | "}" | SP | HT quoted-string = ( <"> *(qdtext | quoted-pair ) <"> ) qdtext = > 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"')]] is\1t,s^[=\s;]*R]N(tHEADER_TOKEN_RERHRpRJtHEADER_QUOTED_VALUE_REtHEADER_ESCAPE_RERctHEADER_VALUE_REtrstripRtappendRat startswithtretsubn( t header_valuestresultRet orig_texttpairsRMtnametvaluetnon_junkt nr_junk_chars((s/usr/lib/python2.7/cookielib.pytsplit_header_wordsFs>.       s([\"\\])cCsg}x|D]}g}xq|D]i\}}|dk r|tjd|sitjd|}d|}nd||f}n|j|q W|r |jdj|q q Wdj|S(sDo 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+$s\\\1s"%s"s%s=%ss; s, N(RRyRHtHEADER_JOIN_ESCAPE_RERcRwtjoin(tliststheadersR~tattrtktv((s/usr/lib/python2.7/cookielib.pytjoin_header_wordss    cCs<|jdr|d}n|jdr8|d }n|S(Nt"ii(Rxtendswith(Re((s/usr/lib/python2.7/cookielib.pyt _strip_quotess   c Cshd}g}xU|D]M}g}t}x ttjd|D]\}}|j}|d krhq>nd |kr|d}} n'tjd |d \}} |j}|d kr|j} | |kr| }n|dkrt| } t }n|dkrt t| } qn|j || fq>W|r|sP|j dn|j |qqW|S(s5Ad-hoc parser for Netscape protocol cookie-attributes. The old Netscape cookie format for Set-Cookie can for instance contain an unquoted "," in the expires field, so we have to use this ad-hoc parser instead of split_header_words. XXX This may not make the best possible effort to parse all the crap that Netscape Cookie headers contain. Ronald Tschalar's HTTPClient parser is probably better, so could do worse than following that if this ever gives any trouble. Currently, this is also used for parsing RFC 2109 cookies. texpirestdomaintpathtsecuretversiontportsmax-ages;\s*R]t=s\s*=\s*iit0(sexpiressdomainspathssecuresversionsportsmax-ageN(sversionR( tFalset enumerateRytsplitRvRRaRQRtTrueRgRw( t ns_headerst known_attrsR|t ns_headerR~t version_settiitparamRRtlc((s/usr/lib/python2.7/cookielib.pytparse_ns_headerss: %            s\.\d+$cCsKtj|rtS|dkr#tS|ddksC|ddkrGtStS(s*Return True if text is a host domain name.R]it.i(tIPV4_RERHRR(Re((s/usr/lib/python2.7/cookielib.pytis_HDNs  cCs|j}|j}||kr(tSt|s8tS|j|}|dks_|dkrctS|jdsvtSt|dstStS(sReturn 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. iiRi(RQRRRtrfindRx(tAtBti((s/usr/lib/python2.7/cookielib.pyt domain_matchs    cCstj|rtStS(sdReturn True if text is a sort-of-like a host domain name. For accepting/blocking domains. (RRHRR(Re((s/usr/lib/python2.7/cookielib.pytliberal_is_HDN'scCs|j}|j}t|o-t|sD||kr@tStS|jd}|rl|j|rltS| r||krtStS(s\For blocking/accepting domains. A and B may be host domain names or IP addresses. R(RQRRRRxR(RRt initial_dot((s/usr/lib/python2.7/cookielib.pytuser_domain_match1s   s:\d+$cCs_|j}tj|d}|dkr@|jdd}ntjd|d}|jS(sReturn request-host, as defined by RFC 2965. Variation from RFC: returned value is lowercased, for convenient comparison. iR]tHost(t get_full_urlturlparset get_headert cut_port_reRcRQ(trequestturlthost((s/usr/lib/python2.7/cookielib.pyt request_hostFs   cCsLt|}}|jddkrBtj| rB|d}n||fS(szReturn a tuple (request-host, effective request-host name). As defined by RFC 2965, except both are lowercased. Ris.local(RtfindRRH(Rterhntreq_host((s/usr/lib/python2.7/cookielib.pyteff_request_hostVs% cCsJ|j}tj|}t|j}|jdsFd|}n|S(s6Path component of request-URI, as defined by RFC 2965.t/(RRturlsplitt escape_pathRRx(RRtpartsR((s/usr/lib/python2.7/cookielib.pyt request_pathas   cCsr|j}|jd}|dkrh||d}yt|Wqntk rdtd|dSXnt}|S(Nt:iisnonnumeric port: '%s'(tget_hostRRIRRRRtDEFAULT_HTTP_PORT(RRRR((s/usr/lib/python2.7/cookielib.pyt request_portks    s%/;:@&=+$,!~*'()s%([0-9a-fA-F][0-9a-fA-F])cCsd|jdjS(Ns%%%si(RJRU(Rm((s/usr/lib/python2.7/cookielib.pytuppercase_escaped_char}scCsIt|tr!|jd}ntj|t}tjt|}|S(sEEscape any invalid characters in HTTP URL, and uppercase all escapes.sutf-8( t isinstancetunicodetencodeturllibtquotetHTTP_PATH_SAFEtESCAPED_CHAR_RERcR(R((s/usr/lib/python2.7/cookielib.pyRs cCsk|jd}|dkrg||d}|jd}t|rg|dks\|dkrgd|Sn|S(sBReturn 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' Riitlocal(RR(thRtb((s/usr/lib/python2.7/cookielib.pytreachs $ cCs3t|}t|t|js+tStSdS(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(RRRtget_origin_req_hostRR(RR((s/usr/lib/python2.7/cookielib.pytis_third_partys cBsVeZdZedZdZddZdZddZ dZ dZ RS( sHTTP 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. cCs |dk rt|}n| dk r6t| } n|dkr]|tkr]tdn||_||_||_||_||_|j |_ ||_ ||_ | |_ | |_| |_| |_| |_||_||_||_tj||_dS(Ns-if port is None, port_specified must be false(RRIRRRRRRRtport_specifiedRQRtdomain_specifiedtdomain_initial_dotRtpath_specifiedRRtdiscardtcommentt comment_urltrfc2109tcopyt_rest(tselfRRRRRRRRRRRRRRRtrestR((s/usr/lib/python2.7/cookielib.pyt__init__s.                 cCs ||jkS(N(R(RR((s/usr/lib/python2.7/cookielib.pythas_nonstandard_attrscCs|jj||S(N(Rtget(RRtdefault((s/usr/lib/python2.7/cookielib.pytget_nonstandard_attrscCs||j|(RRRRRR(Rtptlimitt namevalue((s/usr/lib/python2.7/cookielib.pyt__str__ s   cCsg}x:dD]2}t||}|jd|t|fq W|jdt|j|jdt|jddj|S(NRRRRRRRRRRRRRRRs%s=%ssrest=%ss rfc2109=%ss Cookie(%s)s, (sversionsnamesvaluesportsport_specifiedsdomainsdomain_specifiedsdomain_initial_dotspathspath_specifiedssecuresexpiressdiscardscomments comment_url(tgetattrRwtreprRRR(RRRR((s/usr/lib/python2.7/cookielib.pyt__repr__s !N( t__name__t __module__t__doc__RRRRRRRRR(((s/usr/lib/python2.7/cookielib.pyRs     cBs2eZdZdZdZdZdZRS(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. cCs tdS(sReturn 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(tNotImplementedError(RtcookieR((s/usr/lib/python2.7/cookielib.pytset_ok.scCs tdS(sAReturn true if (and only if) cookie should be returned to server.N(R(RRR((s/usr/lib/python2.7/cookielib.pyt return_ok7scCstS(sMReturn false if cookies should not be returned, given cookie domain. (R(RRR((s/usr/lib/python2.7/cookielib.pytdomain_return_ok;scCstS(sKReturn false if cookies should not be returned, given cookie path. 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