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#!/bin/bash
###########################################################################################
## ALCASAR MAIL SERVICE CONFIGURATION
##
## Script by K@M3L & T3RRY (LaPlateforme.io), joss_p & Rexy
## This script configure PostFix
## 0 : no email autoregistration
## 1 : PostFix is the SMTP server
## 2 : PostFix relay to an other SMTP server
## 3 : PostFix use an external email address (with Cyrus-SASL)
###########################################################################################
######################################################
## Email configuration examples (mode = 3)
## common parameters : smtp_use_tls = yes, smtp_tls_security_level = encrypt, smtp_sasl_auth_enable = yes
## common rules : 'myhostname' parameter should be the domain name of the sasl_email account
########## smtp.free.fr:465 (expose mechanisms : PLAIN LOGIN CRAM-MD5 DIGEST-MD5)
## smtp_sasl_security_option = noanonymous, relayhost = [smtp.free.fr]:465, smtp_tls_wrappermode = yes
########## smtp.free.fr:587 (expose mechanismes
## smtp_sasl_security_option = noanonymous, relayhost = [smtp.free.fr]:587, smtp_tls_wrappermode = no, smtputf8_enable = no
########## smtp.orange.fr:465 (expose mechanisms : LOGIN PLAIN)
## smtp_sasl_security_option = noanonymous, relayhost = [smtp.orange.fr]:465, smtp_tls_wrappermode = yes, smtputf8_enable = no
########## smtp.sfr.fr:465 (expose mechanisms : LOGIN PLAIN)
## smtp_sasl_security_option = noanonymous, relayhost = [smtp.sfr.fr]:465, smtp_tls_wrappermode = yes
########## smtp.laposte.net:465 (expose mechanisms : LOGIN PLAIN)
## smtp_sasl_security_option = noanonymous, relayhost = [laposte.net]:465, smtp_tls_wrappermode = yes
########## smtp.bbox.net:465 (expose mechanisms : LOGIN PLAIN)
## smtp_sasl_security_option = noanonymous, relayhost = [laposte.net]:465, smtp_tls_wrappermode = yes
########## smtp.gmail.com:587 (expose mechanisms : LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH)
## smtp_sasl_security_option = noanonymous, relayhost = [gmail.com]:587, smtp_tls_wrappermode = no
## In this case (gmail) the password must be an "application password" created via the gmail account manager (security tab)
# ****** Paths *******
SED="/bin/sed -i"
CONF_FILE="/usr/local/etc/alcasar.conf"
POSTFIX_CONF_FILE="/etc/postfix/main.cf"
LOCAL_IPTABLE_FILE="/usr/local/etc/alcasar-iptables-local.sh"
SASLPATH="/etc/postfix/sasl"
smtpIP="0.0.0.0/0"
hostName=`grep ^HOSTNAME= $CONF_FILE|cut -d"=" -f2`
domainName=`grep ^DOMAIN= $CONF_FILE|cut -d"=" -f2`
usage="Usage: alcasar-mail_install.sh -h|-0|-1|-2|-3"
nb_args=$#
if [ $nb_args -eq 0 ]; then # apply alcasar.conf
mail=`grep ^MAIL= $CONF_FILE|cut -d"=" -f2`
if [ "$mail" = "off" ]; then
TYPE_MAIL=0
else
TYPE_MAIL=`grep ^MAIL_TYPE= $CONF_FILE|cut -d"=" -f2`
smtpPort=`grep ^MAIL_SMTP_PORT= $CONF_FILE|cut -d"=" -f2`
smtpIP=`grep ^MAIL_SMTP_IP= $CONF_FILE|cut -d"=" -f2`
mailAddr=`grep ^MAIL_ADDR= $CONF_FILE|cut -d"=" -f2`
[ -e ${SASLPATH}/sasl_passwd ] && mailMdp=`cat $SASLPATH/sasl_passwd|cut -d":" -f3`
adminMail=`grep ^MAIL_ADMIN= $CONF_FILE|cut -d"=" -f2`
whiteDomain=`grep ^MAIL_WHITEDOMAIN= $CONF_FILE|cut -d"=" -f2`
fi
else # apply args
if [ "$1" = "-h" ] || [ "$1" = "--h" ]; then
echo $usage
exit 0
fi
while getopts ":h:s:p:m:o:a:w:0123" option
do
case $option in
0)
TYPE_MAIL=0
;;
1)
TYPE_MAIL=1
;;
2)
TYPE_MAIL=2
;;
3)
TYPE_MAIL=3
;;
p)
smtpPort=$OPTARG
;;
s)
smtpIP=$OPTARG
;;
m)
mailAddr=$OPTARG
;;
o)
mailMdp=$OPTARG
;;
a)
adminMail=$OPTARG
;;
w)
whiteDomain=$OPTARG
;;
:)
echo "L'option $OPTARG requiert un argument"
exit 1
;;
\?)
echo "$OPTARG : option invalide"
exit 1
;;
esac
done
fi
if [[ $TYPE_MAIL -eq 0 ]]; then # disable mail service
$SED "s/^MAIL=.*/MAIL=off/" $CONF_FILE
$SED "s/^MAIL_TYPE=.*/MAIL_TYPE=/" $CONF_FILE
$SED "s/^MAIL_SMTP_IP=.*/MAIL_SMTP_IP=/" $CONF_FILE
$SED "s/^MAIL_SMTP_PORT=.*/MAIL_SMTP_PORT=/" $CONF_FILE
$SED "s/^MAIL_ADDR=.*/MAIL_ADDR=/" $CONF_FILE
$SED "s/^MAIL_WHITEDOMAIN=.*/MAIL_WHITEDOMAIN=/" $CONF_FILE
$SED "s/^MAIL_ADMIN=.*/MAIL_ADMIN=/" $CONF_FILE
$SED "/^SMTP_IP=/ s/^/#/" $LOCAL_IPTABLE_FILE
$SED "/^SMTP_PORT=/ s/^/#/" $LOCAL_IPTABLE_FILE
$SED "s/^\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT.*/#\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT -d \$SMTP_IP -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT.*/#\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT -s \$SMTP_IP -m conntrack --ctstate ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^relayhost =.*/relayhost =/" $POSTFIX_CONF_FILE
$SED "s/^smtp_tls_security_level =.*/smtp_tls_security_level = may/g" $POSTFIX_CONF_FILE
$SED "s/^smtp_tls_wrappermode =.*/smtp_tls_wrappermode = no/g" $POSTFIX_CONF_FILE
$SED "s/^myhostname =.*/myhostname = $hostName.$domainName/g" $POSTFIX_CONF_FILE
[ -e ${SASLPATH}/sasl_passwd ] && rm -f ${SASLPATH}/*
elif [[ $TYPE_MAIL -eq 1 ]]; then # Enable mail service (act as smtp server)
$SED "s/^MAIL=.*/MAIL=on/" $CONF_FILE
$SED "s/^MAIL_TYPE=.*/MAIL_TYPE=1/" $CONF_FILE
$SED "s/^MAIL_SMTP_IP=.*/MAIL_SMTP_IP=/" $CONF_FILE
$SED "s/^MAIL_SMTP_PORT=.*/MAIL_SMTP_PORT=$smtpPort/" $CONF_FILE
$SED "s/^MAIL_ADDR=.*/MAIL_ADDR=/" $CONF_FILE
$SED "s/^MAIL_WHITEDOMAIN=.*/MAIL_WHITEDOMAIN=$whiteDomain/" $CONF_FILE
$SED "s/^MAIL_ADMIN=.*/MAIL_ADMIN=$adminMail/" $CONF_FILE
$SED "/^SMTP_IP=/ s/^/#/" $LOCAL_IPTABLE_FILE
$SED "s/^SMTP_PORT=.*/SMTP_PORT=$smtpPort/" $LOCAL_IPTABLE_FILE
$SED "s/^\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT.*/\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT.*/\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT -m conntrack --ctstate ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^#SMTP_PORT=.*/SMTP_PORT=$smtpPort/" $LOCAL_IPTABLE_FILE
$SED "s/^#\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT.*/\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^#\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT.*/\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT -m conntrack --ctstate ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^relayhost =.*/relayhost =/" $POSTFIX_CONF_FILE
$SED "s/^smtp_tls_security_level =.*/smtp_tls_security_level = may/g" $POSTFIX_CONF_FILE
$SED "s/^smtp_tls_wrappermode =.*/smtp_tls_wrappermode = no/g" $POSTFIX_CONF_FILE
$SED "s/^myhostname =.*/myhostname = $hostName.$domainName/g" $POSTFIX_CONF_FILE
[ -e ${SASLPATH}/sasl_passwd ] && rm -f ${SASLPATH}/*
elif [[ $TYPE_MAIL -eq 2 ]]; then # Enable mail service (relaying to an extern mail server)
$SED "s/^MAIL=.*/MAIL=on/" $CONF_FILE
$SED "s/^MAIL_TYPE=.*/MAIL_TYPE=2/" $CONF_FILE
$SED "s/^MAIL_SMTP_IP=.*/MAIL_SMTP_IP=$smtpIP/" $CONF_FILE
$SED "s/^MAIL_SMTP_PORT=.*/MAIL_SMTP_PORT=$smtpPort/" $CONF_FILE
$SED "s/^MAIL_ADDR=.*/MAIL_ADDR=/" $CONF_FILE
$SED "s/^MAIL_WHITEDOMAIN=.*/MAIL_WHITEDOMAIN=$whiteDomain/" $CONF_FILE
$SED "s/^MAIL_ADMIN=.*/MAIL_ADMIN=$adminMail/" $CONF_FILE
$SED "s/^SMTP_IP=.*/SMTP_IP=$smtpIP/" $LOCAL_IPTABLE_FILE
$SED "s/^SMTP_PORT=.*/SMTP_PORT=$smtpPort/" $LOCAL_IPTABLE_FILE
$SED "s/^\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT.*/\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT -d \$SMTP_IP -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT.*/\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT -s \$SMTP_IP -m conntrack --ctstate ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^#SMTP_IP=.*/SMTP_IP=$smtpIP/" $LOCAL_IPTABLE_FILE
$SED "s/^#SMTP_PORT=.*/SMTP_PORT=$smtpPort/" $LOCAL_IPTABLE_FILE
$SED "s/^#\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT.*/\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT -d \$SMTP_IP -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^#\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT.*/\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT -s \$SMTP_IP -m conntrack --ctstate ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^relayhost =.*/relayhost = [$smtpIP]:$smtpPort/g" $POSTFIX_CONF_FILE
$SED "s/^smtp_tls_security_level =.*/smtp_tls_security_level = may/g" $POSTFIX_CONF_FILE
$SED "s/^smtp_tls_wrappermode =.*/smtp_tls_wrappermode = no/g" $POSTFIX_CONF_FILE
$SED "s/^myhostname =.*/myhostname = $hostName.$domainName/g" $POSTFIX_CONF_FILE
[ -e ${SASLPATH}/sasl_passwd ] && rm -f ${SASLPATH}/*
elif [[ $TYPE_MAIL -eq 3 ]]; then # Enable mail service (using an email address)
$SED "s/^MAIL=.*/MAIL=on/" $CONF_FILE
$SED "s/^MAIL_TYPE=.*/MAIL_TYPE=3/" $CONF_FILE
$SED "s/^MAIL_SMTP_IP=.*/MAIL_SMTP_IP=$smtpIP/" $CONF_FILE
$SED "s/^MAIL_SMTP_PORT=.*/MAIL_SMTP_PORT=$smtpPort/" $CONF_FILE
$SED "s/^MAIL_ADDR=.*/MAIL_ADDR=$mailAddr/" $CONF_FILE
$SED "s/^MAIL_WHITEDOMAIN=.*/MAIL_WHITEDOMAIN=$whiteDomain/" $CONF_FILE
$SED "s/^MAIL_ADMIN=.*/MAIL_ADMIN=$adminMail/" $CONF_FILE
$SED "s/^SMTP_IP=.*/SMTP_IP=$smtpIP/" $LOCAL_IPTABLE_FILE
$SED "s/^SMTP_PORT=.*/SMTP_PORT=$smtpPort/" $LOCAL_IPTABLE_FILE
$SED "s/^\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT.*/\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT.*/\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT -m conntrack --ctstate ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^#SMTP_IP=.*/SMTP_IP=$smtpIP/" $LOCAL_IPTABLE_FILE
$SED "s/^#SMTP_PORT=.*/SMTP_PORT=$smtpPort/" $LOCAL_IPTABLE_FILE
$SED "s/^#\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT.*/\$IPTABLES -A OUTPUT -p tcp --dport \$SMTP_PORT -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^#\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT.*/\$IPTABLES -A INPUT -p tcp --sport \$SMTP_PORT -m conntrack --ctstate ESTABLISHED -j ACCEPT/" $LOCAL_IPTABLE_FILE
$SED "s/^relayhost =.*/relayhost = [$smtpIP]:$smtpPort/g" $POSTFIX_CONF_FILE
$SED "s/^smtp_tls_security_level =.*/smtp_tls_security_level = encrypt/g" $POSTFIX_CONF_FILE
if [ "$smtpPort" = "465" ]; then # wrappermode is madatory only if port = 465
$SED "s/^smtp_tls_wrappermode =.*/smtp_tls_wrappermode = yes/g" $POSTFIX_CONF_FILE
else
$SED "s/^smtp_tls_wrappermode =.*/smtp_tls_wrappermode = no/g" $POSTFIX_CONF_FILE
fi
$SED "s/^myhostname =.*/myhostname = alcasar.net/g" $POSTFIX_CONF_FILE # use the alcasar domain name to avoid extern smtp servers reject
[ -d ${SASLPATH} ] || mkdir ${SASLPATH}
echo "[${smtpIP}]:${smtpPort} ${mailAddr}:${mailMdp}" > ${SASLPATH}/sasl_passwd
postmap ${SASLPATH}/sasl_passwd
chmod -R 644 ${SASLPATH}
chown root:root ${SASLPATH}/sasl_passwd*
chmod 0600 ${SASLPATH}/sasl_passwd*
else
echo "Erreur ! Aucun type de messagerie sélectionné !"
exit 0
fi
/usr/local/bin/alcasar-iptables.sh
systemctl restart postfix.service
exit 0