About RSS

#!/usr/bin/perl -Tw ############################################################################## # rss2si.pl # # This program writes out a html table or list that can be placed into a # normal html page for displaying RSS feed on the web. The progam is a # modified version of rss2js.pl by Nik Jewell (see below). Modification # done by Kåre Presttun, kare(at)presttun.org 07th March 2004. # # The modification makes the program suitable for being run from SSI. # Typical usage is like this: # # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # ############################################################################## ############################################################################## # rss2js.pl # # # # This program writes out an RSS file to JavaScript for remote display # # # # by Nik Jewell. v0.2 20th May 2002 # # # # Configuration of the visual display characteristics can be carried out # # with the accompanying rssconfig.pl script # # # # Please contact L.N.Jewell@leeds.ac.uk with bugfixes, suggested # # improvments or for assistance # # # # Copyright (C) 2002 PRS-LTSN # # # # This program is free software; you can redistribute it and/or # # modify it under the terms of the GNU General Public License # # as published by the Free Software Foundation; either version 2 # # of the License, or (at your option) any later version. # # # # This program is distributed in the hope that it will be useful, # # but WITHOUT ANY WARRANTY; without even the implied warranty of # # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # # GNU General Public License for more details. # # # # You should have received a copy of the GNU General Public License # # along with this program; if not, write to the Free Software # # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA # ############################################################################## # Modules use strict; use CGI; use LWP::Simple; use XML::RSS; # Declare global variables my ($width,$height,$listOn,$listOff); # Create an instance of CGI my $query = new CGI; ##################################################################### # Collect the query data my $remote = $query->param('remote'); my $name = $query->param('name'); my $nameDesc = $query->param('nameDesc'); my $image = $query->param('image'); my $desc = $query->param('desc'); my $num = $query->param('num'); my $box = $query->param('box'); my $copyr = $query->param('copyr'); my $date = $query->param('date'); my $list = $query->param('list'); my $wid = $query->param('wid'); ##################################################################### # Create an instance of XML::RSS my $rss = new XML::RSS; # Fetch the remote file my $xml = get($remote); # Parse the retrieved file $rss->parse($xml); # Create the html table &OUTPUT($rss); ##################################################################### # Main display sub OUTPUT { if (not defined $wid) { $wid = '200' } # Display news items as list items? if (defined($list)) { $listOn = "

• "; $listOff = "

"; } # Print the header print "Content-type: text/html\n\n"; # Print the opening container table tags print "\n"; # Call the individual display subroutines if (defined($name)) { &NAME; } if ($rss->{'image'}->{'link'} && defined($image)) { ℑ } if ($rss->{'channel'}->{'description'} && defined($nameDesc)) { &NAMEDESC; } if (defined($desc)) { &DESCRIPTION; } else { &TITLE; } if (($rss->{'textinput'}->{'title'}) && defined($box)) { &TEXTINPUT; } if (($rss->{'channel'}->{'pubDate'}) && defined($date)) { &PUBDATE; } if (($rss->{'channel'}->{'copyright'}) && defined($copyr)) { ©RIGHT; } # Print the closing container table tags print "\n"; } ##################################################################### # Print channel name sub NAME { print "\n"; my $chan="{'channel'}->{'link'}\">$rss->{'channel'}->{'title'}"; &PRINT($chan); print "\n"; } ##################################################################### # Print channel image sub IMAGE { if ($rss->{'image'}->{'width'}) { $width = "$rss->{'image'}->{'width'}"; } if ($rss->{'image'}->{'height'}) { $height = "$rss->{'image'}->{'height'}"; } print "

{'image'}->{'link'}\">{'image'}->{'url'}\" alt=\"$rss->{'image'}->{'title'}\" border=\"0\" width=\"$width\" height=\"$height\">

\n"; } ##################################################################### # Print channel description sub NAMEDESC { print "\n"; my $chandesc="$rss->{'channel'}->{'description'}"; &PRINT($chandesc); print "\n"; } ##################################################################### # Print item title sub TITLE { if (not defined $num) { $num = '0'; } my $s = 1; if ($list eq "y") { my $tableOpen = "

"; my $tableClose = "

"; &PRINT($tableOpen); foreach my $items (@{$rss->{'items'}}) { next unless defined($items->{'title'}) && defined($items->{'link'}) && ($s <= $num); my $titles = "

{'link'}\">$items->{'title'}

"; &PRINT($titles); $s++ } &PRINT($tableClose); } else { foreach my $items (@{$rss->{'items'}}) { next unless defined($items->{'title'}) && defined($items->{'link'}) && ($s <= $num); my $titles = "{'link'}\">$items->{'title'}"; &PRINT($titles); $s++ } } } ##################################################################### # Print item title and description sub DESCRIPTION { if (not defined $listOn) { $listOn = ''; } if (not defined $listOff) { $listOff = ''; } if (not defined $num) { $num = '0'; } my $s = 1; foreach my $items (@{$rss->{'items'}}) { next unless defined($items->{'title'}) && defined($items->{'link'}) && ($s <= $num); my $title = "$listOn{'link'}\">$items->{'title'}$listOff"; my $desc = "$items->{'description'}"; &PRINT($title); &PRINT($desc); $s++; } } ##################################################################### # Print channel textinput box sub TEXTINPUT { my $input = "

{'textinput'}->{'link'}\">$rss->{'textinput'}->{'description'}
{'textinput'}->{'name'}\">
{'textinput'}->{'title'}\">

"; &PRINT($input); } ##################################################################### # Print channel publication date sub PUBDATE { my $pub="$rss->{'channel'}->{'pubDate'}"; &PRINT($pub); } ##################################################################### # Print channel copyright sub COPYRIGHT { my $copyR = "$rss->{'channel'}->{'copyright'}"; &PRINT($copyR); } ##################################################################### # Clean up RSS input before printing sub PRINT { # Escape any single quotes (only needed in js output) # $_[0] =~ s/\'/\\'/g; # Get rid of any stray new lines, form feeds or carriage returns in the input $_[0] =~ s/\n//g; $_[0] =~ s/\f//g; $_[0] =~ s/\r//g; # Print the output print "$_[0]\n"; }