###
### Baseline config notes + milter + MIMEDefang install notes for Redhat 8.0
###
### This HOW-TO should be taken as an extension of the excellent
### MIMEDefang HOW-TO at http://www.rudolphtire.com/mimedefang-howto
###
### 09 Oct 2002
### Chandler Howell
### chandler.howell@halfcat.org
###


### Turn off & disable some services we don't want running on a production box
# disable unwanted services...run this snippet:
# This doesn't actually have anything to do with MIMEDefang, but I include it
# as a reminder after a fresh install
for s in xinetd netfs portmap atd apmd gpm isdn nfslock rhnsd pcmcia httpd xfs lpd ; do
	/etc/init.d/${s} stop
	echo "Disabling $s service in runlevel " `runlevel`
	/sbin/chkconfig $s off
done

###
### Sendmail changes
###

### Install sendmail-devel and sendmail-cf...these were not installed by 
### default. I cheated and used rpmfind.net rather than mounting cd's
ftp://ftp.rpmfind.net/linux/redhat/8.0/en/os/i386/RedHat/RPMS/sendmail-cf-8.12.5-7.i386.rpm
wget ftp://ftp.rpmfind.net/linux/redhat/8.0/en/os/i386/RedHat/RPMS/sendmail-devel-8.12.5-7.i386.rpm
rpm -Uvh sendmail-devel-8.12.5-7.i386.rpm sendmail-cf-8.12.5-7.i386.rpm


### in /etc/mail/sendmail.mc , make the following changes:
###
### comment out (add 'dnl' at the beginning of the line):
#	DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')

### add after the line "dnl FEATURE(`relay_based_on_MX')dnl" :
#	INPUT_MAIL_FILTER(`mimedefang', `S=unix:/var/spool/MIMEDefang/mimedefang.sock, F=T, T=S:1m;R:1m')


### re-run the sendmail macro processor:
m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf

### edit /etc/mail/local-host-names
# it should contain something like:
# match.corp
# machinename.match.corp

### restart sendmail:
/etc/init.d/sendmail restart

### You can confirm that sendmail restarted properly with:
netstat -apa | grep ":smtp"

# should show something like:
#tcp        0      0 *:smtp                  *:*                     LISTEN      4354/sendmail: acce 

###
### Install MIMEDefang
###

# download and install MIMEDefang 
#  HOW-TO is at: http://www.rudolphtire.com/mimedefang-howto 
#  File is at: http://www.roaringpenguin.com/mimedefang/mimedefang-2.21.tar.gz
#   as of this writing.  Check http://www.roaringpenguin.com/mimedefang/ for
#   the latest version.

###
### Perl Modules
###
# Followed HOW-TO instructions for 5.5 MIME-tools
### Downloaded & built the following modules:

Digest-SHA1-2.01.tar.gz
HTML-Parser-3.26.tar.gz
HTML-Tagset-3.03.tar.gz
IO-stringy-2.108.tar.gz
libnet-1.12.tar.gz
Mail-Audit-2.1.tar.gz
MailTools-1.50.tar.gz
MIME-Base64-2.12.tar.gz
MIME-tools-5.411a.tar.gz
Time-HiRes-1.37.tar.gz

### Unpack the perl modules and cd to that directory, then run this script.
### IMPORTANT: Accept the defaults on all command prompts!!!

export $currdir=`pwd`
for f in `ls *.gz` ;
do
	echo "unpacking $f";
	tar zxf $f
done

## download and apply the MIME-tools patch
cd $currdir/MIME-tools-5.411
wget http://www.roaringpenguin.com/mimedefang/mime-tools-patch.txt && \
patch -p1 < mime-tools-patch.txt

### Build and install the various packages
cd $currdir
for f in `ls| grep -v 'gz'`; 
do 
	echo "building $f" 
	cd $currdir/${f} && echo "now in `pwd`" &&  perl Makefile.PL && make && make test && make install 
done

### End the module build scripts

### Add the defang user and make the spool dir
/usr/sbin/useradd -r defang
mkdir /var/spool/MIMEDefang
chmod 700 /var/spool/MIMEDefang
chown defang /var/spool/MIMEDefang
chgrp defang /var/spool/MIMEDefang


### Get & build MIMEDefang
wget http://www.roaringpenguin.com/mimedefang/mimedefang-2.21.tar.gz
tar zxf mimedefang-2.21.tar.gz
cd mimedefang-2.21
./configure && make && make install

### configure MIMEDefang and make the changes below:
vi $currdir/mimedefang-2.21/examples/init-script

### uncomment:
#	MX_USER
#	SUBFILTER

### Install mimedefang and configure it start at startup
### -- cwh -- I'm having some issues with chkconfig accepting this
### script...still have to resolve
cp $currdir/mimedefang-2.21/examples/init-script /etc/init.d/mimedefang

### edit the filter file...
### Add the following lines to /etc/mail/mimedefang-filter
  if ($type eq "text/plain") 
  {
    $entity->head->replace('content-type', 'text/plain; charset=US-ASCII');
    action_rebuild();
  }

  if ($type eq "text/html")
  {
    $entity->head->replace('content-type', 'text/html; charset=US-ASCII');
    action_rebuild();
  }

### Restart mimedefang
/etc/init.d/mimedefang restart

###
### Test by sending an email with utf-8 and then check the rich headers.
### They should now look something like:
### (This is added by MIMEDefang.  I deliberately left it in the source.)
#
# X-Scanned-By: MIMEDefang 2.21 (www . roaringpenguin . com / mimedefang)
#
#This is a multi-part message in MIME format...
#
# ------------=_1034197558-13748-0
# content-type: text/plain; charset=US-ASCII
#
### This was text/plain; charset=utf-8 !
# content-type: text/plain; charset=US-ASCII
#
# Content-Transfer-Encoding: quoted-printable
# Content-Disposition: inline
#
# ------------=_1034197558-13748-0
#
### This was text/html; charset=utf-8 !
# content-type: text/html; charset=US-ASCII
#
# Content-Transfer-Encoding: quoted-printable
# Content-Disposition: inline



### And you're done(-ish)!