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package SoggyOnion::Plugin::RSS; |
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use warnings; |
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use strict; |
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use base qw( SoggyOnion::Plugin ); |
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our $VERSION = '0.04'; |
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use Template; |
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use constant TEMPLATE_FILE => 'rss.tt2'; |
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use LWP::Simple qw(get head $ua); |
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151366
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use constant MOD_TIME => 2; |
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use XML::RSS; |
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use HTML::Strip; |
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our $DEFAULT_MAXLEN; |
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sub init { |
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# set our useragent to be nice |
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$ua->agent( SoggyOnion->useragent ); |
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# set default maximum length using global option |
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$DEFAULT_MAXLEN = SoggyOnion->options->{maxlen} |
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if not defined $DEFAULT_MAXLEN |
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&& not defined SoggyOnion->options->{maxlen}; |
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} |
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# try getting the modification time of the RSS feed from the web server. |
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# if we can't, just return the current time to make sure the feed is |
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# processed. |
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sub mod_time { |
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my $self = shift; |
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my $mtime = [ head( $self->{rss} ) ]->[MOD_TIME]; |
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return $mtime || time; # in case no modification time is available |
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} |
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sub content { |
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my $self = shift; |
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# get the feed |
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my ( $rss, $xml ); |
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eval { |
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$xml = get( $self->{rss} ); |
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$rss = XML::RSS->new; |
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$rss->parse($xml); |
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}; |
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die $@ if $@; |
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# honor maxlen |
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my $maxlen = |
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defined $DEFAULT_MAXLEN ? $DEFAULT_MAXLEN |
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: defined $self->{maxlen} ? $self->{maxlen} |
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: 0; |
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# honor limit option |
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@{ $rss->{items} } = splice( @{ $rss->{items} }, 0, $self->{limit} ) |
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if $self->{limit}; |
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# honor strip-html option (after limiting items) |
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my $allow_html |
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= ( exists $self->{html} && $self->{html} =~ /^(0$|n)/i ) ? 0 : 1; |
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# create stripped html, should do entities conversion so that we don't have |
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# any quotes or brackets in the title |
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my $hs = HTML::Strip->new; |
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map { |
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# create HTML-less version of descriptions |
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$_->{stripped_description} = $hs->parse( $_->{description} ); |
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# shorten it if asked to |
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$_->{stripped_description} |
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= substr( $_->{stripped_description}, 0, $maxlen ) |
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if $maxlen; |
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} @{ $rss->{items} } unless $allow_html; |
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# honor show-description option |
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my $show_descriptions = ( exists $self->{descriptions} |
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&& $self->{descriptions} =~ /^(0$|n)/i ) ? 0 : 1; |
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# trim description if needed |
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map { |
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$_->{description} = substr( $_->{description}, 0, $maxlen ); |
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} @{ $rss->{items} } if $maxlen; |
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# honor icon |
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if ( defined $self->{icon} ) { |
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$rss->{image}{url} = $self->{icon}; |
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$rss->{image}{link} = $rss->{channel}{link} |
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unless $rss->{image}{link}; |
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} |
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# run it through our template |
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my $tt |
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= Template->new( INCLUDE_PATH => SoggyOnion->options->{templatedir} ) |
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or die "couldn't create Template object\n"; |
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my $output; |
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$tt->process( |
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TEMPLATE_FILE, |
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{ %$rss, |
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allow_html => $allow_html, |
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show_descriptions => $show_descriptions, |
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}, |
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\$output |
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) |
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or die $tt->error; |
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return $output; |
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} |
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1; |
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__END__ |