sourcecode
Arjen
<CODE>
#!/usr/bin/perl -w
use strict;
use CGI qw(:standard);
use CGI::Carp qw(fatalsToBrowser);
use LWP::UserAgent;
use HTTP::Request;
use HTTP::Response;
use URI::Heuristic;
use vars qw( $url );
$|++;
# Global vars...
my $plugin_dir = "/usr/lib/cgi-bin/comix-plugins";
# Set up the useragent, to be used by all plugs.
my $agent = LWP::UserAgent->new;
$agent->agent("Daily Comix/0.1");
if ( param() ) {
&do_this;
} else {
&print_main;
}
sub do_this {
print header;
print start_html(-Title=>"Comix",-BGCOLOR=>'white');
foreach (param) {
if ( open(PLUGIN, "$plugin_dir/$_") ) {
while (<PLUGIN>){
if (/^#/) { next }
my ($key, $val) = split(/=/,$_,2);
if (lc($key) eq 'title') { print "<B>$val</B><BR>\n"; }
if (lc($key) eq 'url') { $url = $val; print "<I>$url</I><BR>\n"; }
if (lc($key) eq 'code') {
while () {
(my $line = <PLUGIN>);
$val .= $line;
if ($line =~ /^}/) { last; }
}
&get_comic( $val );
}
}
close(PLUGIN);
} else {
print "<BR><B>There was an error processing $plugin_dir/$_</B><BR>\n";
}
print "<BR><BR>";
}
print end_html;
}
sub print_main {
print header;
print start_html(-Title=>"Comix",-BGCOLOR=>'white');
&list_plugins;
print "<BR><BR>";
print end_html;
}
sub list_plugins {
print qq(<CENTER><TABLE><TR><TD>);
print qq(<FORM ACTION="http://dream.chello.nl/cgi-bin/comix.pl"><BR>\n);
if ( opendir(PLUGINS, $plugin_dir) ) {
while ( defined( my $file = readdir(PLUGINS) ) ) {
if ( $file =~ /^\.{1,2}$/) { next; }
open (CONFIG, "$plugin_dir/$file") or die "Couldn't open: $!\n";
while (<CONFIG>) {
if (/^#/) { next }
my ($key, $val) = split(/=/,$_,2);
chomp($val);
if (lc($key) eq 'title') {
print qq(<INPUT TYPE=CHECKBOX NAME=$file VALUE=$file> );
print $val, "<BR>\n";
}
}
}
closedir(PLUGINS);
print qq(<INPUT TYPE=SUBMIT VALUE="Show comix">);
} else {
print "Error opening directory: $!\n";
}
print qq(</TD></TR></TABLE></FORM>)
}
sub get_comic {
$url = URI::Heuristic::uf_urlstr($url);
my $req = HTTP::Request->new(GET => $url);
$req->referer("http://wish.you.were.here");
my $response = $agent->request($req);
if ($response->is_error) {
print "Oops... there was an error processing the request<BR>";
print "<DD>", $response->status_line;
} else {
my $content = $response->content;
eval $_[0];
print $@ if $@;
}
}
Configuration file:
Title=User Friendly Daily Strip
URL=http://www.userfriendly.org/static
Code={
$content =~ m/(<IMG ALT="Latest Strip" .+?>)/sig;
print $1, "<BR>\n";
}</CODE>
I created this lil script a couple of months ago to have all the comix I read in the morning on one page. I also wanted to be able to chose what to see and I wanted to be able to add comix without having to modify the script itself.<BR>
<BR>
The plugins are simple config files with a piece of code as a value which gets eval'ed. The script then puts them all in a nice overview on 1 single page.<BR>
<BR>
An example plugin (UserFriendly) is included in the code section.<BR>
<BR>
Cheers,<BR>
<BR>
Arjen
Web Stuff
Arjen Wiersma (arjen@wiersma.org)