mς %U²Ic@s°dZdkZdkZdgZdad„Zdfd„ƒYZdfd„ƒYZdfd „ƒYZd ei fd „ƒYZ d „Z d „Z e djo e ƒndS(s< robotparser.py Copyright (C) 2000 Bastian Kleineidam You can choose between two licenses when using this package: 1) GNU GPLv2 2) PSF license for Python 2.2 The robots.txt Exclusion Protocol is implemented as specified in http://info.webcrawler.com/mak/projects/robots/norobots-rfc.html NtRobotFileParsericCsto |GHndS(N(tdebugtmsg(R((t(/data/zmath/lib/python2.4/robotparser.pyt_debugscBsbtZdZdd„Zd„Zd„Zd„Zd„Zd„Zd„Z d „Z d „Z RS( ss This class provides a set of methods to read, parse and answer questions about a single robots.txt file. tcCs>g|_d|_t|_t|_|i|ƒd|_ dS(Ni( tselftentriestNonet default_entrytFalset disallow_allt allow_alltset_urlturlt last_checked(RR((Rt__init__s      cCs|iS(s·Returns the time the robots.txt file was last fetched. This is useful for long-running web spiders that need to check for new robots.txt files periodically. N(RR(R((Rtmtime$scCsdk}|iƒ|_dS(sYSets the time the robots.txt file was last fetched to the current time. N(ttimeRR(RR((Rtmodified-s cCs/||_ti|ƒdd!\|_|_dS(s,Sets the URL referring to a robots.txt file.iiN(RRturlparsethosttpath(RR((RR 5s cCsϋtƒ}|i|iƒ}g}|iƒ}x+|o#|i |i ƒƒ|iƒ}q0W|i |_ |i djp|i djot |_ tdƒnZ|i djot |_tdƒn3|i djo"|otdƒ|i|ƒndS( s4Reads the robots.txt URL and feeds it to the parser.i‘i“s disallow allis allow alliΘs parse linesN(t URLopenertopenertopenRRtftlinestreadlinetlinetappendtstripterrcodetTrueR RR tparse(RRRRR((Rtread:s&       cCs1d|ijo ||_n|ii|ƒdS(Nt*(tentryt useragentsRR RR(RR%((Rt _add_entryNs cCs«d}d}tƒ}xZ|D]R}|d}|p_|djo!td|ƒtƒ}d}q’|djo |i|ƒtƒ}d}q’n|i dƒ}|djo|| }n|i ƒ}|pqn|i ddƒ}t |ƒdjo_|di ƒiƒ|dR@(((RRs       @ R7cBs)tZdZd„Zd„Zd„ZRS(soA rule line is a single "Allow:" (allowance==True) or "Disallow:" (allowance==False) followed by a path.cCs>|djo| o t}nti|ƒ|_||_dS(NR(RR=R!R4R;R(RRR=((RR΄s cCs |idjp|i|iƒS(NR$(RRtfilenamet startswith(RRD((RR<»scCs |iodpdd|iS(NtAllowtDisallows: (RR=R(R((RR@Ύs(RARBRCRR<R@(((RR7±s   R.cBs2tZdZd„Zd„Zd„Zd„ZRS(s?An entry has one or more user-agents and zero or more rulelinescCsg|_g|_dS(N(RR&R6(R((RRΔs cCsXd}x#|iD]}|d|d}qWx%|iD]}|t|ƒd}q6W|S(NRs User-agent: s (R?RR&tagentR6RR8(RRRHR?((RR@Θs  cCsg|idƒdiƒ}xG|iD]<}|djotSn|iƒ}||jotSq#q#WtS(s2check if this entry applies to the specified agentR9iR$N(R:R1R3RR&RHR!R (RR:RH((RR<Πs     cCsOxH|iD]=}t|t|ƒ|ifƒ|i|ƒo |iSq q WtS(sZPreconditions: - our agent applies to this entry - filename is URL decodedN( RR6RRRDR8R=R<R!(RRDR((RR=έs (RARBRCRR@R<R=(((RR.Βs    RcBstZd„Zd„ZRS(NcGs tii||Œd|_dS(NiΘ(R4tFancyURLopenerRRtargsR (RRJ((RRθscCs(||_tii||||||ƒS(N( R RR4RIthttp_error_defaultRtfpterrmsgtheaders(RRRLR RMRN((RRKμs (RARBRRK(((RRηs cCs;|p d}nd}||jo dGHn d|GHHdS(Ns access deniedsaccess allowedtfailedsok (%s)(tbtacta(RRRPRQ((Rt_checkρs    cCs†tƒ}da|idƒ|iƒt|iddƒdƒt|iddƒdƒt|iddƒdƒt|id dƒdƒt|id dƒdƒt|id d ƒdƒt|id d ƒdƒt|idd ƒdƒt|iddƒdƒt|iddƒdƒt|iddƒdƒt|iddƒdƒ|idƒ|iƒt|iddƒdƒdS(Nis"http://www.musi-cal.com/robots.txtR$shttp://www.musi-cal.com/RitCherryPickerSEs?http://www.musi-cal.com/cgi-bin/event-search?city=San+FranciscosCherryPickerSE/1.0sCherryPickerSE/1.5t ExtractorProshttp://www.musi-cal.com/blubbat extractorpros toolpak/1.1tspamshttp://www.musi-cal.com/searchs#http://www.musi-cal.com/Musician/meshttp://www.lycos.com/robots.txttMozillashttp://www.lycos.com/search(RtrpRR R#RSR>(RY((Rt_testόs4        t__main__(RCRR4t__all__RRRR7R.RIRRSRZRA( RR\RRZR4RRSR7R.R((Rt? s  ›% '