#!/usr/bin/perl
# yuno4.pl - Don Yang (uguu.org)
#
# 07/31/05
use strict;
use Socket;
use CGI ':standard';
my ($MAXPOSTSIZE, $INTSIZE);
my ($Port, $Posts);
local (*SERVER, *CLIENT, *SERVER_PIPE, *CLIENT_PIPE);
$MAXPOSTSIZE = 0x20000;
$INTSIZE = length(pack 'I', 0);
$Port = (shift || 80);
my ($rin, $rout);
die $!
unless socket(SERVER, PF_INET, SOCK_STREAM, getprotobyname('tcp')) &&
bind(SERVER, sockaddr_in($Port, INADDR_ANY)) &&
listen(SERVER, 5) &&
pipe(SERVER_PIPE, CLIENT_PIPE);
binmode SERVER;
binmode SERVER_PIPE;
binmode CLIENT_PIPE;
$Posts = $rin = '';
vec($rin, fileno(SERVER), 1) = 1;
vec($rin, fileno(SERVER_PIPE), 1) = 1;
print "listening on $Port\n";
while( select($rout = $rin, undef, undef, undef) )
{
if( vec($rout, fileno(SERVER), 1) )
{
accept CLIENT, SERVER;
if( fork )
{
close CLIENT;
}
else
{
close SERVER_PIPE;
binmode CLIENT;
my ($request, $data, $headersize, $rsize);
$request = '';
while( defined(recv CLIENT, $data, 1024, 0) )
{
$request .= $data;
if( ($headersize = index($request, "\r\n\r\n")) > 0 )
{
$headersize += 4;
last;
}
if( ($headersize = index($request, "\n\n")) > 0 )
{
$headersize += 2;
last;
}
}
if( $request =~ /^POST / )
{
$rsize =
(($request =~ /content-length:\s*(\d+)/i) ? $1 : $MAXPOSTSIZE)
+ $headersize - length $request;
while( $rsize > 0 && defined(recv CLIENT, $data, $rsize, 0) )
{
$request .= $data;
$rsize -= length $data;
}
my ($post, $query);
$query = new CGI(substr $request, $headersize);
$post = $query->param('x');
if( $query->param('f') ne 'reload' )
{
$post =~ s/\r\n/\n/g;
if( $query->param('f') ne 'raw' )
{
$post =~ s/&/&/g;
$post =~ s//>/g;
if( $query->param('f') eq 'post' )
{
$post =~ s/\n/
/g;
}
else
{
$post = "\n$post
";
}
}
$post .= '' . (scalar localtime);
$Posts = "\n
\n$post$Posts";
$post = (pack 'I', length $post) . $post;
print CLIENT_PIPE $post;
}
}
my ($reply);
$reply =
'Yuno' .
'' .
'$Posts\n";
send CLIENT,
"HTTP/1.0 200 OK\r\n" .
"Content-Type: text/html\r\n" .
"Server: Yuno\r\n" .
"Connection: close\r\n" .
"Content-Length: " . length($reply) . "\r\n\r\n" .
$reply, 0;
close CLIENT;
close CLIENT_PIPE;
exit;
}
}
if( vec($rout, fileno(SERVER_PIPE), 1) )
{
my ($data, $entry, $size);
$entry = '';
if( read(SERVER_PIPE, $data, $INTSIZE, 0) )
{
$size = unpack 'I', $data;
while( read(SERVER_PIPE, $data, $size, 0) )
{
$entry .= $data;
last if ($size -= length $data) <= 0;
}
$Posts = "\n
\n$entry$Posts";
}
}
}
die $!;