#!/usr/bin/perl -w  
 
use strict;  
use CGI;  
use CGI::Carp qw ( fatalsToBrowser );  
use File::Basename;  
 
$CGI::POST_MAX = 1024 * 5000;  
my $safe_filename_characters = "a-zA-Z0-9_.-";  
my $upload_dir = "/home/mywebsite/htdocs/upload";  
 
my $query = new CGI;  
my $filename = $query->param("photo");  
my $email_address = $query->param("email_address");  
 
if ( !$filename )  
{  
 print $query->header ( );  
 print "There was a problem uploading your photo (try a smaller file).";  
 exit;  
}  
 
my ( $name, $path, $extension ) = fileparse ( $filename, '\..*' );  
$filename = $name . $extension;  
$filename =~ tr/ /_/;  
$filename =~ s/[^$safe_filename_characters]//g;  
 
if ( $filename =~ /^([$safe_filename_characters]+)$/ )  
{  
 $filename = $1;  
}  
else  
{  
 die "Filename contains invalid characters";  
}  
 
my $upload_filehandle = $query->upload("photo");  
 
open ( UPLOADFILE, ">$upload_dir/$filename" ) or die "$!";  
binmode UPLOADFILE;  
 
while ( <$upload_filehandle> )  
{  
 print UPLOADFILE;  
}  
 
close UPLOADFILE;  
 
print $query->header ( );  
print <<END_HTML;  
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">  
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">  
 <head>  
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
   <title>Thanks!</title>  
   <style type="text/css">  
     img {border: none;}  
   </style>  
 </head>  
 <body>  
   <p>Thanks for uploading your photo!</p>  
   <p>Your email address: $email_address</p>  
   <p>Your photo:</p>  
   <p><img src="/upload/$filename" alt="Photo" /></p>  
 </body>  
</html>  
END_HTML
