Generate Aliases file based on multiple sources

generate-aliases

#!/bin/bash
##################################################################
# Copyright (C) 2013 - Jon Agland                                #
#                                                                #
# This program is free software; you can redistribute it and/or  #
# modify it under the terms of the GNU General Public License    #
# as published by the Free Software Foundation; either version 2 #
# of the License, or (at your option) any later version.         #
#                                                                #
# This program is distributed in the hope that it will be useful,#
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the   #
# GNU General Public License for more details.                   #
##################################################################
# ---------------------------------------------------------------
# Name: generate-aliases
# Version: 0.06
# Description: This script is intended to run as a cronjob.  there
# should be no output to the console.  It's based on querying a
# number of LDAP/Active Directory instances to create a single
# alias file.  Useful if trying to merger two domains into new one
#

DIR=/usr/local/generate-aliases
ALERTEMAIL=""
NUMBERLDAPCALLS=4
DESTFILE="/etc/exim/incoming/newdom"

LDAPDN[1]=""
LDAPPASS[1]=""
LDAPBASE[1]=""
LDAPHOST[1]=""
LDAPOPTS[1]="-s sub -E pr=200/noprompt"
GREPOPTS[1]="@dom1"
IGNOREOPTS[1]=`cat $DIR/ignore/dom1`
PERMFILE[1]=$DIR/output/dom1

LDAPDN[2]=""
LDAPPASS[2]=""
LDAPBASE[2]=""
LDAPHOST[2]=""
LDAPOPTS[2]="-s sub -E pr=200/noprompt"
GREPOPTS[2]="@dom2"
IGNOREOPTS[2]=`cat $DIR/ignore/dom2`
PERMFILE[2]=$DIR/output/dom2

LDAPDN[3]=""
LDAPPASS[3]=""
LDAPBASE[3]=""
LDAPHOST[3]=""
LDAPOPTS[3]="-s sub -E pr=200/noprompt"
PERMFILE[3]=$DIR/output/dom3
IGNOREOPTS[3]=`cat $DIR/ignore/dom3`
GREPOPTS[3]="@dom"

LDAPDN[4]=""
LDAPPASS[4]=""
LDAPBASE[4]=""
LDAPHOST[4]=""
LDAPOPTS[4]="-s sub -E pr=200/noprompt"
PERMFILE[4]=$DIR/output/dom4
GREPOPTS[4]="@dom"
IGNOREOPTS[4]=`cat $DIR/ignore/dom4`

# common
STATICALIASES=$DIR/static-aliases
ERRORLOG=$DIR/log/generate-aliases-err.log
LOG=$DIR/log/generate-aliases.log
LDAPSEARCH="/usr/bin/ldapsearch"
TMPDESTFILE=`mktemp`
TMPDUPFILE=`mktemp`
RANDOMTMP=`mktemp`

if [ -f $ERRORLOG ]
then 
rm $ERRORLOG
fi

j=0
while [ "$j" -lt $NUMBERLDAPCALLS ]
do
let "j++"
FILE=${PERMFILE[$j]}

if [ "${GREPOPTS[$j]}" ]
then
$LDAPSEARCH ${LDAPOPTS[$j]} -w ${LDAPPASS[$j]} -D ${LDAPDN[$j]} -h ${LDAPHOST[$j]} -b ${LDAPBASE[$j]} '(&(!(UserAccountControl:1.2.840.113556.1.4.803:=2))(!(objectclass=contact)))' proxyAddresses | grep -i "${GREPOPTS[$j]}" >$FILE
else
$LDAPSEARCH ${LDAPOPTS[$j]} -w ${LDAPPASS[$j]} -D ${LDAPDN[$j]} -h ${LDAPHOST[$j]} -b ${LDAPBASE[$j]} '(&(!(UserAccountControl:1.2.840.113556.1.4.803:=2))(!(objectclass=contact)))' proxyAddresses  > $FILE
fi
cat $FILE | grep -i "smtp:" | awk -F\: '{ print $3}' | awk -F@ '{print $1":"$1"@"$2}'| sort -u  > $RANDOMTMP
dd if=$RANDOMTMP of=$FILE conv=lcase  >/dev/null 2>&1
cp $FILE ${PERMFILE[$j]}-org

if [ "${IGNOREOPTS[$j]}" ]
then
for i in ${IGNOREOPTS[$j]}
do
echo $(date +"%b %d %H:%M:%S") "ignoring duplicate for "$i" in "${LDAPHOST[$j]},${LDAPBASE[$j]}  >>$LOG
cat $FILE | grep -i -v $i > $RANDOMTMP 
cp $RANDOMTMP $FILE
done
fi

if [ -s ${PERMFILE[$j]} ]
then
# good to go
cat ${PERMFILE[$j]} >> $TMPDESTFILE
else
echo $(date +"%b %d %H:%M:%S") "LDAP Search against $LDAPHOST failed (temp file is empty)" >>$LOG
echo $(date +"%b %d %H:%M:%S") "LDAP Search against $LDAPHOST failed (temp file is empty)" >>$ERRORLOG
exit 1
fi
done

sort $TMPDESTFILE | awk -F\: '{ print $1 }' | uniq -c | grep -v ' 1 ' > $TMPDUPFILE
if [ -s $TMPDUPFILE ]
then
echo $(date +"%b %d %H:%M:%S") "We have the following duplicates." >>$LOG 
echo $(date +"%b %d %H:%M:%S") "We have the following duplicates." >>$ERRORLOG 
cat $TMPDUPFILE >>$LOG
cat $TMPDUPFILE >>$ERRORLOG
echo $(date +"%b %d %H:%M:%S") "Identifying source of duplicates." >>$LOG
echo $(date +"%b %d %H:%M:%S") "Identifying source of duplicates." >>$ERRORLOG
g=0
while [ "$g" -lt $NUMBERLDAPCALLS ]
do
let "g++"
echo $(date +"%b %d %H:%M:%S") "Duplicates for host ${LDAPHOST[$g]},${LDAPBASE[$g]}" >>$LOG
echo $(date +"%b %d %H:%M:%S") "Duplicates for host ${LDAPHOST[$g]},${LDAPBASE[$g]}" >>$ERRORLOG
DUPS=`cat $TMPDUPFILE | awk '{ print $2}'`
for k in $DUPS
do
if [ -f ${PERMFILE[$g]} ]
then
cat ${PERMFILE[$g]} | grep $k:$k@ >>$LOG
cat ${PERMFILE[$g]} | grep $k:$k@  >>$ERRORLOG
else
echo $(date +"%b %d %H:%M:%S") "no duplicates for the above host" >>$ERRORLOG
echo $(date +"%b %d %H:%M:%S") "no duplicates for the above host" >>$LOG
fi
done
done
else
# Good to go

cp $TMPDESTFILE $DESTFILE
cat $STATICALIASES >> $DESTFILE
sort $DESTFILE --output=$DESTFILE

g=0
while [ "$g" -lt $NUMBERLDAPCALLS ]
do
let "g++"
# removing temp files
#rm ${PERMFILE[$g]}
#echo ${PERMFILE[$g]}
done

# removing temp files
rm $TMPDESTFILE $TMPDUPFILE $RANDOMTMP

fi

if [ -f $ERRORLOG ]
then
FQDN=`hostname -f`
mail -s "Error in $0 on $FQDN" $ALERTEMAIL < $ERRORLOG
rm $ERRORLOG
fi

echo $(date +"%b %d %H:%M:%S") "$0 complete." >>$LOG

chmod +r $DESTFILE