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WMc @ s} d Z d d k Z d d k Z d g Z d d d YZ d d d YZ d d
d YZ d e i f d
YZ d S( 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
iNt RobotFileParserc B sb e Z d Z d d Z d Z d Z d Z d Z d Z d 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.
t c C s> g | _ d | _ t | _ t | _ | i | d | _ d S( Ni ( t entriest Nonet
default_entryt Falset disallow_allt allow_allt set_urlt last_checked( t selft url( ( s! /usr/lib/python2.6/robotparser.pyt __init__ s
c C s | i S( 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.
( R ( R
( ( s! /usr/lib/python2.6/robotparser.pyt mtime s c C s d d k } | i | _ d S( sY Sets the time the robots.txt file was last fetched to the
current time.
iN( t timeR ( R
R ( ( s! /usr/lib/python2.6/robotparser.pyt modified) s c C s/ | | _ t i | d d !\ | _ | _ d S( s, Sets the URL referring to a robots.txt file.i i N( R t urlparset hostt path( R
R ( ( s! /usr/lib/python2.6/robotparser.pyR 1 s c C s t } | i | i } g } | D] } | | i q& ~ } | i | i | _ | i d j o
t | _ nF | i d j o
t | _ n) | i d j o | o | i | n d S( s4 Reads the robots.txt URL and feeds it to the parser.i i i i N( i i (
t URLopenert openR t stript closet errcodet TrueR R t parse( R
t openert ft _[1]t linet lines( ( s! /usr/lib/python2.6/robotparser.pyt read6 s '
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useragentsR R R t append( R
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_add_entryD s c C s6 d } d } t } x| D]} | d 7} | pQ | d j o t } d } q | d j o | i | t } d } q n | i d } | d j o | | } n | i } | p q n | i d d } t | d j o#| d i i | d | d j o | o
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startswith( R
t filename( ( s! /usr/lib/python2.6/robotparser.pyR7 s c C s | i o d p d d | i S( Nt Allowt Disallows : ( R8 R ( R
( ( s! /usr/lib/python2.6/robotparser.pyR= s ( R> R? R@ R R7 R= ( ( ( s! /usr/lib/python2.6/robotparser.pyR1 s R) c B s2 e Z d Z d Z d Z d Z d Z RS( s? An entry has one or more user-agents and zero or more rulelinesc C s g | _ g | _ d S( N( R! R0 ( R
( ( s! /usr/lib/python2.6/robotparser.pyR s c C sj g } x' | i D] } | i d | d g q Wx* | i D] } | i t | d g q: Wd i | S( Ns User-agent: s
R ( R! t extendR0 R< R; ( R
t rett agentR ( ( s! /usr/lib/python2.6/robotparser.pyR= s
c C sa | i d d i } xA | i D]6 } | d j o t S| i } | | j o t Sq# Wt S( s2 check if this entry applies to the specified agentR5 i R ( R+ R- R! R R ( R
R9 RG ( ( s! /usr/lib/python2.6/robotparser.pyR7 s
c C s0 x) | i D] } | i | o | i Sq
Wt S( sZ Preconditions:
- our agent applies to this entry
- filename is URL decoded( R0 R7 R8 R ( R
RB R ( ( s! /usr/lib/python2.6/robotparser.pyR8 s
( R> R? R@ R R= R7 R8 ( ( ( s! /usr/lib/python2.6/robotparser.pyR) s
R c B s# e Z d Z d Z d Z RS( c G s t i i | | d | _ d S( Ni ( R. t FancyURLopenerR R ( R
t args( ( s! /usr/lib/python2.6/robotparser.pyR s c C s d S( N( NN( R ( R
R t realm( ( s! /usr/lib/python2.6/robotparser.pyt prompt_user_passwd s c C s( | | _ t i i | | | | | | S( N( R R. RH t http_error_default( R
R t fpR t errmsgt headers( ( s! /usr/lib/python2.6/robotparser.pyRL s ( R> R? R RK RL ( ( ( s! /usr/lib/python2.6/robotparser.pyR s ( ( ( ( R@ R R. t __all__R R1 R) RH R ( ( ( s! /usr/lib/python2.6/robotparser.pyt s $