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� Z RS( us This class provides a set of methods to read, parse and answer
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c C` s | j S( u� 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 ( ( sG /usr/lib/python2.7/site-packages/future/backports/urllib/robotparser.pyt mtime& s c C` s d d l } | j � | _ d S( uY Sets the time the robots.txt file was last fetched to the
current time.
i N( t timeR ( R R ( ( sG /usr/lib/python2.7/site-packages/future/backports/urllib/robotparser.pyt modified/ s c C` s2 | | _ t j j | � d d !\ | _ | _ d S( u, Sets the URL referring to a robots.txt file.i i N( R R R t urlparset hostt path( R R ( ( sG /usr/lib/python2.7/site-packages/future/backports/urllib/robotparser.pyR 7 s c C` s� y t j j | j � } WnO t j j k
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� � d S( u4 Reads the robots.txt URL and feeds it to the parser.i� i� i� u utf-8N( i� i� ( R R t urlopenR t errort HTTPErrort codet TrueR R
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u� Parse the input lines from a robots.txt file.
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one or more blank lines.
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user-agentu disallowu allowN( t EntryR' t findt stript splitt lent lowerR R t unquoteR$ R% t rulelinest RuleLineR R ( R t linest stateR& t linet i( ( sG /usr/lib/python2.7/site-packages/future/backports/urllib/robotparser.pyR R sJ
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| � } | s� d } n x- | j D]" } | j | � r� | j | � Sq� W| j r� | j j | � St S( u= using the parsed robots.txt decide if useragent can fetch urlu u /( R R R
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3 R0 c B` s) e Z d Z d � Z d � Z d � Z RS( uo A rule line is a single "Allow:" (allowance==True) or "Disallow:"
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startswith( R t filename( ( sG /usr/lib/python2.7/site-packages/future/backports/urllib/robotparser.pyR: � s c C` s | j r d p d d | j S( Nu Allowu Disallowu : ( R; R ( R ( ( sG /usr/lib/python2.7/site-packages/future/backports/urllib/robotparser.pyR@ � s ( RA RB RC R R: R@ ( ( ( sG /usr/lib/python2.7/site-packages/future/backports/urllib/robotparser.pyR0 � s R( c B` s2 e Z d Z d � Z d � Z d � Z d � Z RS( u? An entry has one or more user-agents and zero or more rulelinesc C` s g | _ g | _ d S( N( R$ R/ ( R ( ( sG /usr/lib/python2.7/site-packages/future/backports/urllib/robotparser.pyR � s c C` sj g } x' | j D] } | j d | d g � q Wx* | j D] } | j t | � d g � q: Wd j | � S( Nu User-agent: u
u ( R$ t extendR/ R R? ( R t rett agentR3 ( ( sG /usr/lib/python2.7/site-packages/future/backports/urllib/robotparser.pyR@ � s c C` s] | j d � d j � } x= | j D]2 } | d k r9 t S| j � } | | k r# t Sq# Wt S( u2 check if this entry applies to the specified agentu /i u *( R+ R- R$ R R ( R R< RH ( ( sG /usr/lib/python2.7/site-packages/future/backports/urllib/robotparser.pyR: � s c C` s. x' | j D] } | j | � r
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- our agent applies to this entry
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