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Dir : ~/usr/share/perl5/Mail/SpamAssassin/Plugin/

Edit File: URIEval.pm

# <@LICENSE>
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to you under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at:
# 
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# </@LICENSE>

package Mail::SpamAssassin::Plugin::URIEval;

use Mail::SpamAssassin::Plugin;
use Mail::SpamAssassin::Logger;

use strict;
use warnings;
# use bytes;
use re 'taint';

our @ISA = qw(Mail::SpamAssassin::Plugin);

# constructor: register the eval rule
sub new {
  my $class = shift;
  my $mailsaobject = shift;

# some boilerplate...
  $class = ref($class) || $class;
  my $self = $class->SUPER::new($mailsaobject);
  bless ($self, $class);

# the important bit!
  $self->register_eval_rule("check_for_http_redirector");
  $self->register_eval_rule("check_https_ip_mismatch");
  $self->register_eval_rule("check_uri_truncated");

return $self;
}

###########################################################################

sub check_for_http_redirector {
  my ($self, $pms) = @_;

foreach ($pms->get_uri_list()) {
    while (s{^https?://([^/:\?]+).+?(https?:/{0,2}?([^/:\?]+).*)$}{$2}i) {
      my ($redir, $dest) = ($1, $3);
      foreach ($redir, $dest) {
	$_ = $self->{main}->{registryboundaries}->uri_to_domain($_) || $_;
      }
      next if ($redir eq $dest);
      dbg("eval: redirect: found $redir to $dest, flagging");
      return 1;
    }
  }
  return 0;
}

###########################################################################

sub check_https_ip_mismatch {
  my ($self, $pms) = @_;

while (my($k,$v) = each %{$pms->{html}->{uri_detail}}) {
    next if ($k !~ m%^https?:/*(?:[^\@/]+\@)?\d+\.\d+\.\d+\.\d+%i);
    foreach (@{$v->{anchor_text}}) {
      next if (m%^https:/*(?:[^\@/]+\@)?\d+\.\d+\.\d+\.\d+%i);
      if (m%https:%i) {
	keys %{$self->{html}->{uri_detail}}; # resets iterator, bug 4829
	return 1;
      }
    }
  }

return 0;
}

###########################################################################

# is there a better way to do this?
sub check_uri_truncated {
  my ($self, $pms) = @_;
  return $pms->{'uri_truncated'};
}

1;