[Mimedefang] Making an md5 key of the body
Chris Myers
chris at by-design.net
Tue Mar 27 12:10:40 EDT 2007
----- Original Message -----
From: "Danny Kj æ rgaard" <danny at resennet.dk>
To: <mimedefang at lists.roaringpenguin.com>
Sent: Tuesday, March 27, 2007 7:45 AM
Subject: [Mimedefang] Making an md5 key of the body
> Hi,
>
> I would like to make an md5 key of all bodys that comes throu my
> mailscanner. I'm writing these to the log. I have the followering in my
> filter()
Here's a code snippet that will calculate the hash of the message headers
and message body, and give you bytecounts for headers and body as well.
Note that calculating the digest ($ctx->b64digest) resets the calculation
process, the code below DOES NOT calculate a combined hash of the headers
and body.
if ( -e "./INPUTMSG" ) {
my $totalsize = -s "./INPUTMSG";
my $headersize = 0;
my $ctx = Digest::SHA1->new;
open(FILE, "<./INPUTMSG") && do {
binmode(FILE);
while (<FILE>) {
$ctx->add($_);
$headersize += length;
last if ( /^$/ );
}
$header_hash = $ctx->b64digest;
$ctx->addfile(*FILE);
$body_hash = $ctx->b64digest;
$body_length = $totalsize - $headersize;
close(FILE);
}
}
Chris Myers
Networks By Design
More information about the MIMEDefang
mailing list