userforward



#!/bin/sh

if [ $# \< 2 -o $# \> 3 ]; then
    echo "Usage: userforward {account} {forward@address.somewhere} [force]"
    exit 1
fi

user=$1
addr=$2
force=$3

set -e

uid=`id -u $user`
if [ $uid \< 1000 -a "x$force" != "xforce" ]; then
    echo "ERROR: User is not a real user (uid too low)!"
    exit 1
fi

homedir=`getent passwd $user | awk -F: '{print $6}';`

if [ -e $homedir/.forward -a "x$force" != "xforce" ]; then
    echo "ERROR: User \"$user\" already has a .forward!"
    exit 1
fi

if [ -d $homedir ]; then
    touch $homedir/.forward
    echo "echo $addr>$homedir/.forward"
    echo $addr>$homedir/.forward
    chown $user. $homedir/.forward
else
    echo "ERROR: Homedir \"$homedir\" of user \"$user\" doesn't exist!"
    exit 1
fi

mailspool=/var/mail/$user
thismaildomain=`cat /etc/mailname 2> /dev/null || hostname -d`

if [ -f $mailspool ]; then
    if [ -s $mailspool -a -x /usr/bin/formail -a -x /usr/lib/sendmail ]; then
        mv $mailspool $mailspool.off
        /usr/bin/formail -A "X-Resent-By: postmaster@$thismaildomain" -i "To: $addr" -R Cc: Old-Cc: -R Bcc: Old-Bcc: -s /usr/lib/sendmail -t < $mailspool.off
        rm -f $mailspool.off
        echo "Old incoming mails forwarded to new account."
    else
        echo "OBS! Old incoming mails not forwarded."
    fi
fi
echo "Done!"