localmkpostfixvirtual



#!/bin/bash
#
# /usr/local/sbin/localmkpostfixvirtual
# Copyright 2001-2002 Jonas Smedegaard <dr@jones.dk>
#
# $Id: localmkpostfixvirtual,v 1.8 2002-09-04 23:35:52 jonas Exp $
#
# Generate virtual file for postfix
#
# Hints are stored in the "Other" field (using chfn).
#
# Each user should have space-separated hints like "mailname1@ mailname2@gid1 mailname3@gid2".
#
# The user of each mailgroup should have hints like "@domain1 @domain2"
# for each hosted domain.
#
# Optional: More than one mailgroup can be grouped: List them all in
# "Office" or "roomnumber" field of primary mailgroup (include the
# primary mailgroup itself!).
#
# Optional: root can have hints like "postmaster@ hostmaster@ support@"
# (default: "postmaster@").
#
# Suggestion: Add mailgroup users like this:
# adduser --system --no-create-home --group --disabled-password <uid>
#
# TODO: reuse getent requests (drastically improves speed)
# TODO: Write command "members" as internal code
#

function get_fullname_field()   { getent passwd $1 | awk -F: '{print $5}' | awk -F, '{print $1}'; }
function get_roomnumber_field() { getent passwd $1 | awk -F: '{print $5}' | awk -F, '{print $2}'; }
function get_other_field()  { getent passwd $1 | awk -F: '{print $5}' | awk -F, '{print $5}'; }
function get_groups()       { groups $1 | sed -e 's/^.*: //' -e "s/\( \+\|^\)$1\( \+\|$\)/\1/"; }
function get_domain()       { echo $1 | egrep "^@[\.[:alnum:]-]+$" | sed -e 's/@//'; }
function get_account()      { echo $1 | egrep "^[\.[:alnum:]-]+@($gid)?$" | sed -e 's/@.*//'; }

loop=""
for gid in $@; do
    for maildomainchunk in `get_other_field $gid`; do
        for maildomain in `get_domain $maildomainchunk`; do
            if [ $loop ]; then
                echo
                echo "##################################################################"
                echo
            fi
            loop=true
            echo "$maildomain VIRTUAL"
            uid_seen=""
            for mailaccountchunk in `get_other_field root`; do
                for mailaccount in `get_account $mailaccountchunk`; do
                    echo "$mailaccount@$maildomain root"
                    uid_seen=true
                done
            done
            if [ ! $uid_seen ]; then
                echo "postmaster@$maildomain root"
            fi
            echo
            mailusers=""
            mailgroups=`get_roomnumber_field $gid`
            [ -z "$mailgroups" ] && mailgroups=$gid
            for mailgroup in $mailgroups; do
                mailusers="$mailusers `members $mailgroup`"
            done
#           for uid in `members $gid | sort`; do
            for uid in `echo $mailusers | tsort | uniq | sort`; do
                echo "# `get_fullname_field $uid` (`get_groups $uid`)"
                uid_seen=""
                for mailaccountchunk in `get_other_field $uid`; do
                    for mailaccount in `get_account $mailaccountchunk`; do
                        echo "$mailaccount@$maildomain $uid"
                        uid_seen=true
                    done
                done
                if [ ! $uid_seen ]; then
                    echo "#WARNING: No addresses for $uid"
                fi
                echo
            done
        done
    done
done