#!/usr/bin/perl
################################################################################
#
# File:         $RCSfile: checkaddress.cgi,v $
# Revision:	$Revision: 1.1 $
# Description:	Check an email address
# Author:       Andrew@DeFaria.com
# Created:      Mon Jan 16 20:25:32 PST 2006
# Modified:     $Date: 2013/06/12 14:05:47 $
# Language:     perl
#
# (c) Copyright 2000-2006, Andrew@DeFaria.com, all rights reserved.
#
################################################################################
use strict;
use warnings;

use FindBin;
$0 = $FindBin::Script;

use lib $FindBin::Bin;

use MAPS;

use CGI qw (:standard);

# Get MAPSUser from cookie
my $userid;

if (param "user") {
  $userid = param "user";
} else {
  $userid = cookie ("MAPSUser");
} # if

my $sender = param ("sender");

sub Heading {
  print
    header     (-title  => "MAPS: Check Address"),
    start_html (-title  => "MAPS: Check Address",
                -author => "Andrew\@DeFaria.com");
    print h3 {-align => "center",
              -class => "header"},
    "MAPS: Checking address $sender";
} # Heading

sub Body {
  my ($onlist, $rule);

  # Algorithm change: We now first check to see if the sender is not found
  # in the message and skip it if so. Then we handle if we are the sender
  # and that the from address is formatted properly. Spammers often use 
  # the senders email address (i.e. andrew@defaria.com) as their from address
  # so we check "Andrew DeFaria <Andrew@DeFaria.com>", which they have never
  # forged. This catches a lot of spam actually.
  #
  # Next we check to see if the sender is on our whitelist. If so then we let
  # them in. This allows us to say whitelist josephrosenberg@hotmail.com while
  # still nulllisting all of the other hotmail.com spammers.
  #
  # Next we process blacklisted people as they are also of high priority.
  #
  # Then we process nulllist people.
  #
  # Finally, we handle return processing
  ($onlist, $rule) = OnWhitelist $sender, 0;

  if ($onlist) {
    print div {-align => "center"},
      font {-color => "green"},
        "Messages from", b ($sender), "will be", b ("delivered"), br, hr;
    print $rule;
  } else {
    ($onlist, $rule) = OnBlacklist $sender, 0;

    if ($onlist) {
      print div {-align	=> "center"},
           font {-color	=> "black"},
            "Messages from", b ($sender), "will be", b ("blacklisted"), br, hr;
      print $rule;
    } else {
      ($onlist, $rule) = OnNulllist $sender, 0;

      if ($onlist) {
        print div {-align	=> "center"},
          font {-color	=> "grey"},
            "Messages from", b ($sender), "will be", b ("discarded"), br, hr;
        print $rule;
      } else {
        print div {-align	=> "center"},
          font {-color	=> "red"},
            "Messages from", b ($sender), "will be", b ("returned");
      } # if
    } # if
  } # if

  print br div {-align => "center"},
    submit (-name      => "submit",
            -value     => "Close",
            -onClick   => "window.close (self)");
} # Body

sub Footing {
  print end_html;
} # Footing

# Main
SetContext $userid;
Heading;
Body;
Footing;

exit;