docker-mailserver/target/start-mailserver.sh
17Halbe 3b7fc5930c Introducing Postscreen (#799)
* Introduced Postscreen

cheaper, earlier and simpler blocking of zombies/spambots.
From http://postfix.cs.utah.edu/POSTSCREEN_README.html :
As a first layer, postscreen(8) blocks connections from zombies and other spambots that are responsible for about 90% of all spam. It is implemented as a single process to make this defense as cheap as possible.

Things we need to consider:

 - Do we need a whitelist/backlist file? (http://postfix.cs.utah.edu/postconf.5.html#postscreen_access_list)
   - Via introducing an optional config/postfix-access.cidr
   - The only permanent whitelisting I could imagine are monitoring services(which might (still?) behave weird/hastely) or blacklisting backup servers(since no traffic should be coming from them anyway)
 - Do we need deep inspections? They are desireable, but these tests are expensive: a good client must disconnect after it passes the test, before it can talk to a real Postfix SMTP server. Considered tests are:
   - postscreen_bare_newline_enable (http://postfix.cs.utah.edu/postconf.5.html#postscreen_bare_newline_action)
   - postscreen_non_smtp_command_enable (http://postfix.cs.utah.edu/postconf.5.html#postscreen_non_smtp_command_action)
   - postscreen_pipelining_enable (http://postfix.cs.utah.edu/postconf.5.html#postscreen_pipelining_action)
- Do we need to make the blacklisting via dnsblocking configurable? It's currently set and weighted as follows, where a score of 3 results in blocking, a score of -1 results in whitelisting:
   (*: adds the specified weight to the SMTP client's DNSBL score. Specify a negative number for whitelisting.)
   (http://postfix.cs.utah.edu/postconf.5.html#postscreen_dnsbl_sites)
   - zen.spamhaus.org*3
   - bl.mailspike.net
   - b.barracudacentral.org*2
   - bl.spameatingmonkey.net
   - bl.spamcop.net
   - dnsbl.sorbs.net
   - psbl.surriel.com
   - list.dnswl.org=127.0.[0..255].0*-2
   - list.dnswl.org=127.0.[0..255].1*-3
   - list.dnswl.org=127.0.[0..255].[2..3]*-4
- What to do when blacklisting? I currently set it to drop. We could
   - ignore: Ignore the failure of this test. Allow other tests to complete. Repeat this test the next time the client connects. This option is useful for testing and collecting statistics without blocking mail.
   - enforce: Allow other tests to complete. Reject attempts to deliver mail with a 550 SMTP reply, and log the helo/sender/recipient information. Repeat this test the next time the client connects.
   - drop: Drop the connection immediately with a 521 SMTP reply. Repeat this test the next time the client connects.

In the end I think we could drop postgrey support. Postscreen replaces postgrey in its entirety, while being more selective and not delaying mail. Especially if we consider using the deep inspection options of postscreen.

Hope that wasn't too much to read! ;)

* main.cf got misformatted..
Don't know how, should be ok now.

* fixed malformatted main.cf & repaired master.cf

* reenabled rbl stuff.. It's cached, therefore doesn't hurt

* fixed tests

* added tests, repaired tests, added info, introduced new Variable POSTSCREEN_ACTION, fixes
2018-02-04 21:31:08 +01:00

1316 lines
44 KiB
Bash

#!/bin/bash
##########################################################################
# >> DEFAULT VARS
#
# add them here.
# Example: DEFAULT_VARS["KEY"]="VALUE"
##########################################################################
declare -A DEFAULT_VARS
DEFAULT_VARS["ENABLE_CLAMAV"]="${ENABLE_CLAMAV:="0"}"
DEFAULT_VARS["ENABLE_SPAMASSASSIN"]="${ENABLE_SPAMASSASSIN:="0"}"
DEFAULT_VARS["ENABLE_POP3"]="${ENABLE_POP3:="0"}"
DEFAULT_VARS["ENABLE_FAIL2BAN"]="${ENABLE_FAIL2BAN:="0"}"
DEFAULT_VARS["ENABLE_MANAGESIEVE"]="${ENABLE_MANAGESIEVE:="0"}"
DEFAULT_VARS["ENABLE_FETCHMAIL"]="${ENABLE_FETCHMAIL:="0"}"
DEFAULT_VARS["FETCHMAIL_POLL"]="${FETCHMAIL_POLL:="300"}"
DEFAULT_VARS["ENABLE_LDAP"]="${ENABLE_LDAP:="0"}"
DEFAULT_VARS["ENABLE_POSTGREY"]="${ENABLE_POSTGREY:="0"}"
DEFAULT_VARS["POSTGREY_DELAY"]="${POSTGREY_DELAY:="300"}"
DEFAULT_VARS["POSTGREY_MAX_AGE"]="${POSTGREY_MAX_AGE:="35"}"
DEFAULT_VARS["POSTGREY_TEXT"]="${POSTGREY_TEXT:="Delayed by postgrey"}"
DEFAULT_VARS["ENABLE_SASLAUTHD"]="${ENABLE_SASLAUTHD:="0"}"
DEFAULT_VARS["SMTP_ONLY"]="${SMTP_ONLY:="0"}"
DEFAULT_VARS["DMS_DEBUG"]="${DMS_DEBUG:="0"}"
DEFAULT_VARS["OVERRIDE_HOSTNAME"]="${OVERRIDE_HOSTNAME}"
DEFAULT_VARS["POSTSCREEN_ACTION"]="${POSTSCREEN_ACTION:="enforce"}"
##########################################################################
# << DEFAULT VARS
##########################################################################
##########################################################################
# >> GLOBAL VARS
#
# add your global script variables here.
#
# Example: KEY="VALUE"
##########################################################################
HOSTNAME="$(hostname -f)"
DOMAINNAME="$(hostname -d)"
##########################################################################
# << GLOBAL VARS
##########################################################################
##########################################################################
# >> REGISTER FUNCTIONS
#
# add your new functions/methods here.
#
# NOTE: position matters when registering a function in stacks. First in First out
# Execution Logic:
# > check functions
# > setup functions
# > fix functions
# > misc functions
# > start-daemons
#
# Example:
# if [ CONDITION IS MET ]; then
# _register_{setup,fix,check,start}_{functions,daemons} "$FUNCNAME"
# fi
#
# Implement them in the section-group: {check,setup,fix,start}
##########################################################################
function register_functions() {
notify 'taskgrp' 'Initializing setup'
notify 'task' 'Registering check,setup,fix,misc and start-daemons functions'
################### >> check funcs
_register_check_function "_check_environment_variables"
_register_check_function "_check_hostname"
################### << check funcs
################### >> setup funcs
_register_setup_function "_setup_default_vars"
if [ "$ENABLE_ELK_FORWARDER" = 1 ]; then
_register_setup_function "_setup_elk_forwarder"
fi
if [ "$SMTP_ONLY" != 1 ]; then
_register_setup_function "_setup_dovecot"
_register_setup_function "_setup_dovecot_local_user"
fi
if [ "$ENABLE_LDAP" = 1 ];then
_register_setup_function "_setup_ldap"
fi
if [ "$ENABLE_SASLAUTHD" = 1 ];then
_register_setup_function "_setup_saslauthd"
fi
if [ "$ENABLE_POSTGREY" = 1 ];then
_register_setup_function "_setup_postgrey"
fi
_register_setup_function "_setup_dkim"
_register_setup_function "_setup_ssl"
_register_setup_function "_setup_docker_permit"
_register_setup_function "_setup_mailname"
_register_setup_function "_setup_amavis"
_register_setup_function "_setup_dmarc_hostname"
_register_setup_function "_setup_postfix_hostname"
_register_setup_function "_setup_dovecot_hostname"
_register_setup_function "_setup_postfix_sasl"
_register_setup_function "_setup_postfix_override_configuration"
_register_setup_function "_setup_postfix_sasl_password"
_register_setup_function "_setup_security_stack"
_register_setup_function "_setup_postfix_aliases"
_register_setup_function "_setup_postfix_vhost"
_register_setup_function "_setup_postfix_dhparam"
_register_setup_function "_setup_postfix_postscreen"
if [ ! -z "$AWS_SES_HOST" -a ! -z "$AWS_SES_USERPASS" ]; then
_register_setup_function "_setup_postfix_relay_amazon_ses"
fi
if [ "$ENABLE_POSTFIX_VIRTUAL_TRANSPORT" = 1 ]; then
_register_setup_function "_setup_postfix_virtual_transport"
fi
_register_setup_function "_setup_environment"
################### << setup funcs
################### >> fix funcs
_register_fix_function "_fix_var_mail_permissions"
_register_fix_function "_fix_var_amavis_permissions"
if [ "$ENABLE_CLAMAV" = 0 ]; then
_register_fix_function "_fix_cleanup_clamav"
fi
################### << fix funcs
################### >> misc funcs
_register_misc_function "_misc_save_states"
################### << misc funcs
################### >> daemon funcs
_register_start_daemon "_start_daemons_cron"
_register_start_daemon "_start_daemons_rsyslog"
if [ "$ENABLE_ELK_FORWARDER" = 1 ]; then
_register_start_daemon "_start_daemons_filebeat"
fi
if [ "$SMTP_ONLY" != 1 ]; then
_register_start_daemon "_start_daemons_dovecot"
fi
# needs to be started before saslauthd
_register_start_daemon "_start_daemons_opendkim"
_register_start_daemon "_start_daemons_opendmarc"
#postfix uses postgrey, needs to be started before postfix
if [ "$ENABLE_POSTGREY" = 1 ]; then
_register_start_daemon "_start_daemons_postgrey"
fi
_register_start_daemon "_start_daemons_postfix"
if [ "$ENABLE_SASLAUTHD" = 1 ];then
_register_start_daemon "_start_daemons_saslauthd"
fi
# care needs to run after postfix
if [ "$ENABLE_FAIL2BAN" = 1 ]; then
_register_start_daemon "_start_daemons_fail2ban"
fi
if [ "$ENABLE_FETCHMAIL" = 1 ]; then
_register_start_daemon "_start_daemons_fetchmail"
fi
if [ "$ENABLE_CLAMAV" = 1 ]; then
_register_start_daemon "_start_daemons_clamav"
fi
# Change detector
if [ "$ENABLE_LDAP" = 0 ]; then
_register_start_daemon "_start_changedetector"
fi
_register_start_daemon "_start_daemons_amavis"
################### << daemon funcs
}
##########################################################################
# << REGISTER FUNCTIONS
##########################################################################
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# ! CARE --> DON'T CHANGE, unless you exactly know what you are doing
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# >>
##########################################################################
# >> CONSTANTS
##########################################################################
declare -a FUNCS_SETUP
declare -a FUNCS_FIX
declare -a FUNCS_CHECK
declare -a FUNCS_MISC
declare -a DAEMONS_START
declare -A HELPERS_EXEC_STATE
##########################################################################
# << CONSTANTS
##########################################################################
##########################################################################
# >> protected register_functions
##########################################################################
function _register_start_daemon() {
DAEMONS_START+=($1)
notify 'inf' "$1() registered"
}
function _register_setup_function() {
FUNCS_SETUP+=($1)
notify 'inf' "$1() registered"
}
function _register_fix_function() {
FUNCS_FIX+=($1)
notify 'inf' "$1() registered"
}
function _register_check_function() {
FUNCS_CHECK+=($1)
notify 'inf' "$1() registered"
}
function _register_misc_function() {
FUNCS_MISC+=($1)
notify 'inf' "$1() registered"
}
##########################################################################
# << protected register_functions
##########################################################################
function notify () {
c_red="\e[0;31m"
c_green="\e[0;32m"
c_brown="\e[0;33m"
c_blue="\e[0;34m"
c_bold="\033[1m"
c_reset="\e[0m"
notification_type=$1
notification_msg=$2
notification_format=$3
msg=""
case "${notification_type}" in
'taskgrp')
msg="${c_bold}${notification_msg}${c_reset}"
;;
'task')
if [[ ${DEFAULT_VARS["DMS_DEBUG"]} == 1 ]]; then
msg=" ${notification_msg}${c_reset}"
fi
;;
'inf')
if [[ ${DEFAULT_VARS["DMS_DEBUG"]} == 1 ]]; then
msg="${c_green} * ${notification_msg}${c_reset}"
fi
;;
'started')
msg="${c_green} ${notification_msg}${c_reset}"
;;
'warn')
msg="${c_brown} * ${notification_msg}${c_reset}"
;;
'err')
msg="${c_red} * ${notification_msg}${c_reset}"
;;
'fatal')
msg="${c_red}Error: ${notification_msg}${c_reset}"
;;
*)
msg=""
;;
esac
case "${notification_format}" in
'n')
options="-ne"
;;
*)
options="-e"
;;
esac
[[ ! -z "${msg}" ]] && echo $options "${msg}"
}
function defunc() {
notify 'fatal' "Please fix your configuration. Exiting..."
exit 1
}
function display_startup_daemon() {
$1 &>/dev/null
res=$?
if [[ ${DEFAULT_VARS["DMS_DEBUG"]} == 1 ]]; then
if [ $res = 0 ]; then
notify 'started' " [ OK ]"
else
echo "false"
notify 'err' " [ FAILED ]"
fi
fi
return $res
}
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# ! CARE --> DON'T CHANGE, except you know exactly what you are doing
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# <<
##########################################################################
# >> Check Stack
#
# Description: Place functions for initial check of container sanity
##########################################################################
function check() {
notify 'taskgrp' 'Checking configuration'
for _func in "${FUNCS_CHECK[@]}";do
$_func
[ $? != 0 ] && defunc
done
}
function _check_hostname() {
notify "task" "Check that hostname/domainname is provided or overidden (no default docker hostname/kubernetes) [$FUNCNAME]"
if [[ ! -z ${DEFAULT_VARS["OVERRIDE_HOSTNAME"]} ]]; then
export HOSTNAME=${DEFAULT_VARS["OVERRIDE_HOSTNAME"]}
export DOMAINNAME=$(echo $HOSTNAME | sed s/[^.]*.//)
fi
if ( ! echo $HOSTNAME | grep -E '^(\S+[.]\S+)$' > /dev/null ); then
notify 'err' "Setting hostname/domainname is required"
kill -6 `cat /var/run/supervisord.pid` && return 1
else
notify 'inf' "Domain has been set to $DOMAINNAME"
notify 'inf' "Hostname has been set to $HOSTNAME"
return 0
fi
}
function _check_environment_variables() {
notify "task" "Check that there are no conflicts with env variables [$FUNCNAME]"
return 0
}
##########################################################################
# << Check Stack
##########################################################################
##########################################################################
# >> Setup Stack
#
# Description: Place functions for functional configurations here
##########################################################################
function setup() {
notify 'taskgrp' 'Configuring mail server'
for _func in "${FUNCS_SETUP[@]}";do
$_func
done
}
function _setup_default_vars() {
notify 'task' "Setting up default variables [$FUNCNAME]"
for var in ${!DEFAULT_VARS[@]}; do
echo "export $var=${DEFAULT_VARS[$var]}" >> /root/.bashrc
[ $? != 0 ] && notify 'err' "Unable to set $var=${DEFAULT_VARS[$var]}" && kill -15 `cat /var/run/supervisord.pid` && return 1
notify 'inf' "Set $var=${DEFAULT_VARS[$var]}"
done
}
function _setup_mailname() {
notify 'task' 'Setting up Mailname'
notify 'inf' "Creating /etc/mailname"
echo $DOMAINNAME > /etc/mailname
}
function _setup_amavis() {
notify 'task' 'Setting up Amavis'
notify 'inf' "Applying hostname to /etc/amavis/conf.d/05-node_id"
sed -i 's/^#\$myhostname = "mail.example.com";/\$myhostname = "'$HOSTNAME'";/' /etc/amavis/conf.d/05-node_id
}
function _setup_dmarc_hostname() {
notify 'task' 'Setting up dmarc'
notify 'inf' "Applying hostname to /etc/opendmarc.conf"
sed -i -e 's/^AuthservID.*$/AuthservID '$HOSTNAME'/g' \
-e 's/^TrustedAuthservIDs.*$/TrustedAuthservIDs '$HOSTNAME'/g' /etc/opendmarc.conf
}
function _setup_postfix_hostname() {
notify 'task' 'Applying hostname and domainname to Postfix'
notify 'inf' "Applying hostname to /etc/postfix/main.cf"
postconf -e "myhostname = $HOSTNAME"
postconf -e "mydomain = $DOMAINNAME"
}
function _setup_dovecot_hostname() {
notify 'task' 'Applying hostname to Dovecot'
notify 'inf' "Applying hostname to /etc/dovecot/conf.d/15-lda.conf"
sed -i 's/^#hostname =.*$/hostname = '$HOSTNAME'/g' /etc/dovecot/conf.d/15-lda.conf
}
function _setup_dovecot() {
notify 'task' 'Setting up Dovecot'
cp -a /usr/share/dovecot/protocols.d /etc/dovecot/
# Disable pop3 (it will be eventually enabled later in the script, if requested)
mv /etc/dovecot/protocols.d/pop3d.protocol /etc/dovecot/protocols.d/pop3d.protocol.disab
mv /etc/dovecot/protocols.d/managesieved.protocol /etc/dovecot/protocols.d/managesieved.protocol.disab
sed -i -e 's/#ssl = yes/ssl = yes/g' /etc/dovecot/conf.d/10-master.conf
sed -i -e 's/#port = 993/port = 993/g' /etc/dovecot/conf.d/10-master.conf
sed -i -e 's/#port = 995/port = 995/g' /etc/dovecot/conf.d/10-master.conf
sed -i -e 's/#ssl = yes/ssl = required/g' /etc/dovecot/conf.d/10-ssl.conf
# Enable Managesieve service by setting the symlink
# to the configuration file Dovecot will actually find
if [ "$ENABLE_MANAGESIEVE" = 1 ]; then
notify 'inf' "Sieve management enabled"
mv /etc/dovecot/protocols.d/managesieved.protocol.disab /etc/dovecot/protocols.d/managesieved.protocol
fi
# Copy pipe and filter programs, if any
rm -f /usr/lib/dovecot/sieve-filter/*
rm -f /usr/lib/dovecot/sieve-pipe/*
if [ -d /tmp/docker-mailserver/sieve-filter ]; then
cp /tmp/docker-mailserver/sieve-filter/* /usr/lib/dovecot/sieve-filter/
chown docker:docker /usr/lib/dovecot/sieve-filter/*
chmod 550 /usr/lib/dovecot/sieve-filter/*
fi
if [ -d /tmp/docker-mailserver/sieve-pipe ]; then
cp /tmp/docker-mailserver/sieve-pipe/* /usr/lib/dovecot/sieve-pipe/
chown docker:docker /usr/lib/dovecot/sieve-pipe/*
chmod 550 /usr/lib/dovecot/sieve-pipe/*
fi
}
function _setup_dovecot_local_user() {
notify 'task' 'Setting up Dovecot Local User'
echo -n > /etc/postfix/vmailbox
echo -n > /etc/dovecot/userdb
if [ -f /tmp/docker-mailserver/postfix-accounts.cf -a "$ENABLE_LDAP" != 1 ]; then
notify 'inf' "Checking file line endings"
sed -i 's/\r//g' /tmp/docker-mailserver/postfix-accounts.cf
notify 'inf' "Regenerating postfix user list"
echo "# WARNING: this file is auto-generated. Modify config/postfix-accounts.cf to edit user list." > /etc/postfix/vmailbox
# Checking that /tmp/docker-mailserver/postfix-accounts.cf ends with a newline
sed -i -e '$a\' /tmp/docker-mailserver/postfix-accounts.cf
chown dovecot:dovecot /etc/dovecot/userdb
chmod 640 /etc/dovecot/userdb
sed -i -e '/\!include auth-ldap\.conf\.ext/s/^/#/' /etc/dovecot/conf.d/10-auth.conf
sed -i -e '/\!include auth-passwdfile\.inc/s/^#//' /etc/dovecot/conf.d/10-auth.conf
# Creating users
# 'pass' is encrypted
# comments and empty lines are ignored
grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-accounts.cf | while IFS=$'|' read login pass
do
# Setting variables for better readability
user=$(echo ${login} | cut -d @ -f1)
domain=$(echo ${login} | cut -d @ -f2)
# Let's go!
notify 'inf' "user '${user}' for domain '${domain}' with password '********'"
echo "${login} ${domain}/${user}/" >> /etc/postfix/vmailbox
# User database for dovecot has the following format:
# user:password:uid:gid:(gecos):home:(shell):extra_fields
# Example :
# ${login}:${pass}:5000:5000::/var/mail/${domain}/${user}::userdb_mail=maildir:/var/mail/${domain}/${user}
echo "${login}:${pass}:5000:5000::/var/mail/${domain}/${user}::" >> /etc/dovecot/userdb
mkdir -p /var/mail/${domain}
if [ ! -d "/var/mail/${domain}/${user}" ]; then
maildirmake.dovecot "/var/mail/${domain}/${user}"
maildirmake.dovecot "/var/mail/${domain}/${user}/.Sent"
maildirmake.dovecot "/var/mail/${domain}/${user}/.Trash"
maildirmake.dovecot "/var/mail/${domain}/${user}/.Drafts"
echo -e "INBOX\nSent\nTrash\nDrafts" >> "/var/mail/${domain}/${user}/subscriptions"
touch "/var/mail/${domain}/${user}/.Sent/maildirfolder"
fi
# Copy user provided sieve file, if present
test -e /tmp/docker-mailserver/${login}.dovecot.sieve && cp /tmp/docker-mailserver/${login}.dovecot.sieve /var/mail/${domain}/${user}/.dovecot.sieve
echo ${domain} >> /tmp/vhost.tmp
done
else
notify 'inf' "'config/docker-mailserver/postfix-accounts.cf' is not provided. No mail account created."
fi
if [[ ! $(grep '@' /tmp/docker-mailserver/postfix-accounts.cf | grep '|') ]]; then
if [ $ENABLE_LDAP -eq 0 ]; then
notify 'fatal' "Unless using LDAP, you need at least 1 email account to start the server."
defunc
fi
fi
}
function _setup_ldap() {
notify 'task' 'Setting up Ldap'
notify 'inf' 'Checking for custom configs'
# cp config files if in place
for i in 'users' 'groups' 'aliases' 'domains'; do
fpath="/tmp/docker-mailserver/ldap-${i}.cf"
if [ -f $fpath ]; then
cp ${fpath} /etc/postfix/ldap-${i}.cf
fi
done
notify 'inf' 'Starting to override configs'
for f in /etc/postfix/ldap-users.cf /etc/postfix/ldap-groups.cf /etc/postfix/ldap-aliases.cf /etc/postfix/ldap-domains.cf
do
[[ $f =~ ldap-user ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_USER}"
[[ $f =~ ldap-group ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_GROUP}"
[[ $f =~ ldap-aliases ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_ALIAS}"
[[ $f =~ ldap-domains ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_DOMAIN}"
configomat.sh "LDAP_" "${f}"
done
notify 'inf' "Configuring dovecot LDAP"
declare -A _dovecot_ldap_mapping
_dovecot_ldap_mapping["DOVECOT_BASE"]="${DOVECOT_BASE:="${LDAP_SEARCH_BASE}"}"
_dovecot_ldap_mapping["DOVECOT_DN"]="${DOVECOT_DN:="${LDAP_BIND_DN}"}"
_dovecot_ldap_mapping["DOVECOT_DNPASS"]="${DOVECOT_DNPASS:="${LDAP_BIND_PW}"}"
_dovecot_ldap_mapping["DOVECOT_HOSTS"]="${DOVECOT_HOSTS:="${LDAP_SERVER_HOST}"}"
# Not sure whether this can be the same or not
# _dovecot_ldap_mapping["DOVECOT_PASS_FILTER"]="${DOVECOT_PASS_FILTER:="${LDAP_QUERY_FILTER_USER}"}"
# _dovecot_ldap_mapping["DOVECOT_USER_FILTER"]="${DOVECOT_USER_FILTER:="${LDAP_QUERY_FILTER_USER}"}"
for var in ${!_dovecot_ldap_mapping[@]}; do
export $var=${_dovecot_ldap_mapping[$var]}
done
configomat.sh "DOVECOT_" "/etc/dovecot/dovecot-ldap.conf.ext"
# Add domainname to vhost.
echo $DOMAINNAME >> /tmp/vhost.tmp
notify 'inf' "Enabling dovecot LDAP authentification"
sed -i -e '/\!include auth-ldap\.conf\.ext/s/^#//' /etc/dovecot/conf.d/10-auth.conf
sed -i -e '/\!include auth-passwdfile\.inc/s/^/#/' /etc/dovecot/conf.d/10-auth.conf
notify 'inf' "Configuring LDAP"
[ -f /etc/postfix/ldap-users.cf ] && \
postconf -e "virtual_mailbox_maps = ldap:/etc/postfix/ldap-users.cf" || \
notify 'inf' "==> Warning: /etc/postfix/ldap-user.cf not found"
[ -f /etc/postfix/ldap-domains.cf ] && \
postconf -e "virtual_mailbox_domains = /etc/postfix/vhost, ldap:/etc/postfix/ldap-domains.cf" || \
notify 'inf' "==> Warning: /etc/postfix/ldap-domains.cf not found"
[ -f /etc/postfix/ldap-aliases.cf -a -f /etc/postfix/ldap-groups.cf ] && \
postconf -e "virtual_alias_maps = ldap:/etc/postfix/ldap-aliases.cf, ldap:/etc/postfix/ldap-groups.cf" || \
notify 'inf' "==> Warning: /etc/postfix/ldap-aliases.cf or /etc/postfix/ldap-groups.cf not found"
return 0
}
function _setup_postgrey() {
notify 'inf' "Configuring postgrey"
sed -i -e 's/bl.spamcop.net$/bl.spamcop.net, check_policy_service inet:127.0.0.1:10023/' /etc/postfix/main.cf
sed -i -e "s/\"--inet=127.0.0.1:10023\"/\"--inet=127.0.0.1:10023 --delay=$POSTGREY_DELAY --max-age=$POSTGREY_MAX_AGE\"/" /etc/default/postgrey
TEXT_FOUND=`grep -i "POSTGREY_TEXT" /etc/default/postgrey | wc -l`
if [ $TEXT_FOUND -eq 0 ]; then
printf "POSTGREY_TEXT=\"$POSTGREY_TEXT\"\n\n" >> /etc/default/postgrey
fi
if [ -f /tmp/docker-mailserver/whitelist_clients.local ]; then
cp -f /tmp/docker-mailserver/whitelist_clients.local /etc/postgrey/whitelist_clients.local
fi
}
function _setup_postfix_postscreen() {
notify 'inf' "Configuring postscreen"
sed -i -e "s/postscreen_dnsbl_action = enforce/postscreen_dnsbl_action = $POSTSCREEN_ACTION/" \
-e "s/postscreen_greet_action = enforce/postscreen_greet_action = $POSTSCREEN_ACTION/" \
-e "s/postscreen_bare_newline_action = enforce/postscreen_bare_newline_action = $POSTSCREEN_ACTION/" /etc/postfix/main.cf
}
function _setup_postfix_sasl() {
if [[ ${ENABLE_SASLAUTHD} == 1 ]];then
[ ! -f /etc/postfix/sasl/smtpd.conf ] && cat > /etc/postfix/sasl/smtpd.conf << EOF
pwcheck_method: saslauthd
mech_list: plain login
EOF
fi
# cyrus sasl or dovecot sasl
if [[ ${ENABLE_SASLAUTHD} == 1 ]] || [[ ${SMTP_ONLY} == 0 ]];then
sed -i -e 's|^smtpd_sasl_auth_enable[[:space:]]\+.*|smtpd_sasl_auth_enable = yes|g' /etc/postfix/main.cf
else
sed -i -e 's|^smtpd_sasl_auth_enable[[:space:]]\+.*|smtpd_sasl_auth_enable = no|g' /etc/postfix/main.cf
fi
return 0
}
function _setup_saslauthd() {
notify 'task' "Setting up Saslauthd"
notify 'inf' "Configuring Cyrus SASL"
# checking env vars and setting defaults
[ -z "$SASLAUTHD_MECHANISMS" ] && SASLAUTHD_MECHANISMS=pam
[ "$SASLAUTHD_MECHANISMS" = ldap -a -z "$SASLAUTHD_LDAP_SEARCH_BASE" ] && SASLAUTHD_MECHANISMS=pam
[ -z "$SASLAUTHD_LDAP_SERVER" ] && SASLAUTHD_LDAP_SERVER=localhost
[ -z "$SASLAUTHD_LDAP_FILTER" ] && SASLAUTHD_LDAP_FILTER='(&(uniqueIdentifier=%u)(mailEnabled=TRUE))'
([ -z "$SASLAUTHD_LDAP_SSL" ] || [ $SASLAUTHD_LDAP_SSL == 0 ]) && SASLAUTHD_LDAP_PROTO='ldap://' || SASLAUTHD_LDAP_PROTO='ldaps://'
if [ ! -f /etc/saslauthd.conf ]; then
notify 'inf' "Creating /etc/saslauthd.conf"
cat > /etc/saslauthd.conf << EOF
ldap_servers: ${SASLAUTHD_LDAP_PROTO}${SASLAUTHD_LDAP_SERVER}
ldap_auth_method: bind
ldap_bind_dn: ${SASLAUTHD_LDAP_BIND_DN}
ldap_bind_pw: ${SASLAUTHD_LDAP_PASSWORD}
ldap_search_base: ${SASLAUTHD_LDAP_SEARCH_BASE}
ldap_filter: ${SASLAUTHD_LDAP_FILTER}
ldap_referrals: yes
log_level: 10
EOF
fi
sed -i \
-e "/^[^#].*smtpd_sasl_type.*/s/^/#/g" \
-e "/^[^#].*smtpd_sasl_path.*/s/^/#/g" \
/etc/postfix/master.cf
sed -i \
-e "/smtpd_sasl_path =.*/d" \
-e "/smtpd_sasl_type =.*/d" \
-e "/dovecot_destination_recipient_limit =.*/d" \
/etc/postfix/main.cf
gpasswd -a postfix sasl
}
function _setup_postfix_aliases() {
notify 'task' 'Setting up Postfix Aliases'
echo -n > /etc/postfix/virtual
echo -n > /etc/postfix/regexp
if [ -f /tmp/docker-mailserver/postfix-virtual.cf ]; then
# Copying virtual file
cp -f /tmp/docker-mailserver/postfix-virtual.cf /etc/postfix/virtual
while read from to
do
# Setting variables for better readability
uname=$(echo ${from} | cut -d @ -f1)
domain=$(echo ${from} | cut -d @ -f2)
# if they are equal it means the line looks like: "user1 other@domain.tld"
test "$uname" != "$domain" && echo ${domain} >> /tmp/vhost.tmp
done < /tmp/docker-mailserver/postfix-virtual.cf
else
notify 'inf' "Warning 'config/postfix-virtual.cf' is not provided. No mail alias/forward created."
fi
if [ -f /tmp/docker-mailserver/postfix-regexp.cf ]; then
# Copying regexp alias file
notify 'inf' "Adding regexp alias file postfix-regexp.cf"
cp -f /tmp/docker-mailserver/postfix-regexp.cf /etc/postfix/regexp
sed -i -e '/^virtual_alias_maps/{
s/ pcre:.*//
s/$/ pcre:\/etc\/postfix\/regexp/
}' /etc/postfix/main.cf
fi
}
function _setup_dkim() {
notify 'task' 'Setting up DKIM'
mkdir -p /etc/opendkim && touch /etc/opendkim/SigningTable
# Check if keys are already available
if [ -e "/tmp/docker-mailserver/opendkim/KeyTable" ]; then
cp -a /tmp/docker-mailserver/opendkim/* /etc/opendkim/
notify 'inf' "DKIM keys added for: `ls -C /etc/opendkim/keys/`"
notify 'inf' "Changing permissions on /etc/opendkim"
chown -R opendkim:opendkim /etc/opendkim/
# And make sure permissions are right
chmod -R 0700 /etc/opendkim/keys/
else
notify 'warn' "No DKIM key provided. Check the documentation to find how to get your keys."
local _f_keytable="/etc/opendkim/KeyTable"
[ ! -f "$_f_keytable" ] && touch "$_f_keytable"
fi
}
function _setup_ssl() {
notify 'task' 'Setting up SSL'
# SSL Configuration
case $SSL_TYPE in
"letsencrypt" )
# letsencrypt folders and files mounted in /etc/letsencrypt
if [ -e "/etc/letsencrypt/live/$HOSTNAME/cert.pem" ] \
&& [ -e "/etc/letsencrypt/live/$HOSTNAME/fullchain.pem" ]; then
KEY=""
if [ -e "/etc/letsencrypt/live/$HOSTNAME/privkey.pem" ]; then
KEY="privkey"
elif [ -e "/etc/letsencrypt/live/$HOSTNAME/key.pem" ]; then
KEY="key"
fi
if [ -n "$KEY" ]; then
notify 'inf' "Adding $HOSTNAME SSL certificate"
# Postfix configuration
sed -i -r 's~smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem~smtpd_tls_cert_file=/etc/letsencrypt/live/'$HOSTNAME'/fullchain.pem~g' /etc/postfix/main.cf
sed -i -r 's~smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key~smtpd_tls_key_file=/etc/letsencrypt/live/'$HOSTNAME'/'"$KEY"'\.pem~g' /etc/postfix/main.cf
# Dovecot configuration
sed -i -e 's~ssl_cert = </etc/dovecot/ssl/dovecot\.pem~ssl_cert = </etc/letsencrypt/live/'$HOSTNAME'/fullchain\.pem~g' /etc/dovecot/conf.d/10-ssl.conf
sed -i -e 's~ssl_key = </etc/dovecot/ssl/dovecot\.key~ssl_key = </etc/letsencrypt/live/'$HOSTNAME'/'"$KEY"'\.pem~g' /etc/dovecot/conf.d/10-ssl.conf
notify 'inf' "SSL configured with 'letsencrypt' certificates"
fi
fi
;;
"custom" )
# Adding CA signed SSL certificate if provided in 'postfix/ssl' folder
if [ -e "/tmp/docker-mailserver/ssl/$HOSTNAME-full.pem" ]; then
notify 'inf' "Adding $HOSTNAME SSL certificate"
mkdir -p /etc/postfix/ssl
cp "/tmp/docker-mailserver/ssl/$HOSTNAME-full.pem" /etc/postfix/ssl
# Postfix configuration
sed -i -r 's~smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem~smtpd_tls_cert_file=/etc/postfix/ssl/'$HOSTNAME'-full.pem~g' /etc/postfix/main.cf
sed -i -r 's~smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key~smtpd_tls_key_file=/etc/postfix/ssl/'$HOSTNAME'-full.pem~g' /etc/postfix/main.cf
# Dovecot configuration
sed -i -e 's~ssl_cert = </etc/dovecot/ssl/dovecot\.pem~ssl_cert = </etc/postfix/ssl/'$HOSTNAME'-full\.pem~g' /etc/dovecot/conf.d/10-ssl.conf
sed -i -e 's~ssl_key = </etc/dovecot/ssl/dovecot\.key~ssl_key = </etc/postfix/ssl/'$HOSTNAME'-full\.pem~g' /etc/dovecot/conf.d/10-ssl.conf
notify 'inf' "SSL configured with 'CA signed/custom' certificates"
fi
;;
"manual" )
# Lets you manually specify the location of the SSL Certs to use. This gives you some more control over this whole processes (like using kube-lego to generate certs)
if [ -n "$SSL_CERT_PATH" ] \
&& [ -n "$SSL_KEY_PATH" ]; then
notify 'inf' "Configuring certificates using cert $SSL_CERT_PATH and key $SSL_KEY_PATH"
mkdir -p /etc/postfix/ssl
cp "$SSL_CERT_PATH" /etc/postfix/ssl/cert
cp "$SSL_KEY_PATH" /etc/postfix/ssl/key
chmod 600 /etc/postfix/ssl/cert
chmod 600 /etc/postfix/ssl/key
# Postfix configuration
sed -i -r 's~smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem~smtpd_tls_cert_file=/etc/postfix/ssl/cert~g' /etc/postfix/main.cf
sed -i -r 's~smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key~smtpd_tls_key_file=/etc/postfix/ssl/key~g' /etc/postfix/main.cf
# Dovecot configuration
sed -i -e 's~ssl_cert = </etc/dovecot/ssl/dovecot\.pem~ssl_cert = </etc/postfix/ssl/cert~g' /etc/dovecot/conf.d/10-ssl.conf
sed -i -e 's~ssl_key = </etc/dovecot/ssl/dovecot\.key~ssl_key = </etc/postfix/ssl/key~g' /etc/dovecot/conf.d/10-ssl.conf
notify 'inf' "SSL configured with 'Manual' certificates"
fi
;;
"self-signed" )
# Adding self-signed SSL certificate if provided in 'postfix/ssl' folder
if [ -e "/tmp/docker-mailserver/ssl/$HOSTNAME-cert.pem" ] \
&& [ -e "/tmp/docker-mailserver/ssl/$HOSTNAME-key.pem" ] \
&& [ -e "/tmp/docker-mailserver/ssl/$HOSTNAME-combined.pem" ] \
&& [ -e "/tmp/docker-mailserver/ssl/demoCA/cacert.pem" ]; then
notify 'inf' "Adding $HOSTNAME SSL certificate"
mkdir -p /etc/postfix/ssl
cp "/tmp/docker-mailserver/ssl/$HOSTNAME-cert.pem" /etc/postfix/ssl
cp "/tmp/docker-mailserver/ssl/$HOSTNAME-key.pem" /etc/postfix/ssl
# Force permission on key file
chmod 600 /etc/postfix/ssl/$HOSTNAME-key.pem
cp "/tmp/docker-mailserver/ssl/$HOSTNAME-combined.pem" /etc/postfix/ssl
cp /tmp/docker-mailserver/ssl/demoCA/cacert.pem /etc/postfix/ssl
# Postfix configuration
sed -i -r 's~smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem~smtpd_tls_cert_file=/etc/postfix/ssl/'$HOSTNAME'-cert.pem~g' /etc/postfix/main.cf
sed -i -r 's~smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key~smtpd_tls_key_file=/etc/postfix/ssl/'$HOSTNAME'-key.pem~g' /etc/postfix/main.cf
sed -i -r 's~#smtpd_tls_CAfile=~smtpd_tls_CAfile=/etc/postfix/ssl/cacert.pem~g' /etc/postfix/main.cf
sed -i -r 's~#smtp_tls_CAfile=~smtp_tls_CAfile=/etc/postfix/ssl/cacert.pem~g' /etc/postfix/main.cf
ln -s /etc/postfix/ssl/cacert.pem "/etc/ssl/certs/cacert-$HOSTNAME.pem"
# Dovecot configuration
sed -i -e 's~ssl_cert = </etc/dovecot/ssl/dovecot\.pem~ssl_cert = </etc/postfix/ssl/'$HOSTNAME'-combined\.pem~g' /etc/dovecot/conf.d/10-ssl.conf
sed -i -e 's~ssl_key = </etc/dovecot/ssl/dovecot\.key~ssl_key = </etc/postfix/ssl/'$HOSTNAME'-key\.pem~g' /etc/dovecot/conf.d/10-ssl.conf
notify 'inf' "SSL configured with 'self-signed' certificates"
fi
;;
esac
}
function _setup_postfix_vhost() {
notify 'task' "Setting up Postfix vhost"
if [ -f /tmp/vhost.tmp ]; then
cat /tmp/vhost.tmp | sort | uniq > /etc/postfix/vhost && rm /tmp/vhost.tmp
fi
}
function _setup_docker_permit() {
notify 'task' 'Setting up PERMIT_DOCKER Option'
container_ip=$(ip addr show eth0 | grep 'inet ' | sed 's/[^0-9\.\/]*//g' | cut -d '/' -f 1)
container_network="$(echo $container_ip | cut -d '.' -f1-2).0.0"
case $PERMIT_DOCKER in
"host" )
notify 'inf' "Adding $container_network/16 to my networks"
postconf -e "$(postconf | grep '^mynetworks =') $container_network/16"
echo $container_network/16 >> /etc/opendmarc/ignore.hosts
echo $container_network/16 >> /etc/opendkim/TrustedHosts
;;
"network" )
notify 'inf' "Adding docker network in my networks"
postconf -e "$(postconf | grep '^mynetworks =') 172.16.0.0/12"
echo 172.16.0.0/12 >> /etc/opendmarc/ignore.hosts
echo 172.16.0.0/12 >> /etc/opendkim/TrustedHosts
;;
* )
notify 'inf' "Adding container ip in my networks"
postconf -e "$(postconf | grep '^mynetworks =') $container_ip/32"
echo $container_ip/32 >> /etc/opendmarc/ignore.hosts
echo $container_ip/32 >> /etc/opendkim/TrustedHosts
;;
esac
}
function _setup_postfix_virtual_transport() {
notify 'task' 'Setting up Postfix virtual transport'
[ -z "${POSTFIX_DAGENT}" ] && \
echo "${POSTFIX_DAGENT} not set." && \
kill -15 `cat /var/run/supervisord.pid` && return 1
postconf -e "virtual_transport = ${POSTFIX_DAGENT}"
}
function _setup_postfix_override_configuration() {
notify 'task' 'Setting up Postfix Override configuration'
if [ -f /tmp/docker-mailserver/postfix-main.cf ]; then
while read line; do
# all valid postfix options start with a lower case letter
# http://www.postfix.org/postconf.5.html
if [[ "$line" =~ ^[a-z] ]]; then
postconf -e "$line"
fi
done < /tmp/docker-mailserver/postfix-main.cf
notify 'inf' "Loaded 'config/postfix-main.cf'"
else
notify 'inf' "No extra postfix settings loaded because optional '/tmp/docker-mailserver/postfix-main.cf' not provided."
fi
if [ -f /tmp/docker-mailserver/postfix-master.cf ]; then
while read line; do
if [[ "$line" =~ ^[a-z] ]]; then
postconf -P "$line"
fi
done < /tmp/docker-mailserver/postfix-master.cf
notify 'inf' "Loaded 'config/postfix-master.cf'"
else
notify 'inf' "No extra postfix settings loaded because optional '/tmp/docker-mailserver/postfix-master.cf' not provided."
fi
notify 'inf' "set the compatibility level to 2"
postconf compatibility_level=2
}
function _setup_postfix_sasl_password() {
notify 'task' 'Setting up Postfix SASL Password'
# Support general SASL password
rm -f /etc/postfix/sasl_passwd
if [ ! -z "$SASL_PASSWD" ]; then
echo "$SASL_PASSWD" >> /etc/postfix/sasl_passwd
fi
# Install SASL passwords
if [ -f /etc/postfix/sasl_passwd ]; then
chown root:root /etc/postfix/sasl_passwd
chmod 0600 /etc/postfix/sasl_passwd
notify 'inf' "Loaded SASL_PASSWD"
else
notify 'inf' "Warning: 'SASL_PASSWD' is not provided. /etc/postfix/sasl_passwd not created."
fi
}
function _setup_postfix_relay_amazon_ses() {
notify 'task' 'Setting up Postfix Relay Amazon SES'
if [ -z "$AWS_SES_PORT" ];then
AWS_SES_PORT=25
fi
notify 'inf' "Setting up outgoing email via AWS SES host $AWS_SES_HOST:$AWS_SES_PORT"
echo "[$AWS_SES_HOST]:$AWS_SES_PORT $AWS_SES_USERPASS" >> /etc/postfix/sasl_passwd
postconf -e \
"relayhost = [$AWS_SES_HOST]:$AWS_SES_PORT" \
"smtp_sasl_auth_enable = yes" \
"smtp_sasl_security_options = noanonymous" \
"smtp_sasl_password_maps = texthash:/etc/postfix/sasl_passwd" \
"smtp_use_tls = yes" \
"smtp_tls_security_level = encrypt" \
"smtp_tls_note_starttls_offer = yes" \
"smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt"
}
function _setup_postfix_dhparam() {
notify 'task' 'Setting up Postfix dhparam'
if [ "$ONE_DIR" = 1 ];then
DHPARAMS_FILE=/var/mail-state/lib-postfix/dhparams.pem
if [ ! -f $DHPARAMS_FILE ]; then
notify 'inf' "Generate new dhparams for postfix"
mkdir -p $(dirname "$DHPARAMS_FILE")
openssl dhparam -out $DHPARAMS_FILE 2048
else
notify 'inf' "Use dhparams that was generated previously"
fi
# Copy from the state directpry to the working location
rm /etc/postfix/dhparams.pem && cp $DHPARAMS_FILE /etc/postfix/dhparams.pem
else
notify 'inf' "No state dir, we use the dhparams generated on image creation"
fi
}
function _setup_security_stack() {
notify 'task' "Setting up Security Stack"
# recreate auto-generated file
dms_amavis_file="/etc/amavis/conf.d/61-dms_auto_generated"
echo "# WARNING: this file is auto-generated." > $dms_amavis_file
echo "use strict;" >> $dms_amavis_file
# Spamassassin
if [ "$ENABLE_SPAMASSASSIN" = 0 ]; then
notify 'warn' "Spamassassin is disabled. You can enable it with 'ENABLE_SPAMASSASSIN=1'"
echo "@bypass_spam_checks_maps = (1);" >> $dms_amavis_file
elif [ "$ENABLE_SPAMASSASSIN" = 1 ]; then
notify 'inf' "Enabling and configuring spamassassin"
SA_TAG=${SA_TAG:="2.0"} && sed -i -r 's/^\$sa_tag_level_deflt (.*);/\$sa_tag_level_deflt = '$SA_TAG';/g' /etc/amavis/conf.d/20-debian_defaults
SA_TAG2=${SA_TAG2:="6.31"} && sed -i -r 's/^\$sa_tag2_level_deflt (.*);/\$sa_tag2_level_deflt = '$SA_TAG2';/g' /etc/amavis/conf.d/20-debian_defaults
SA_KILL=${SA_KILL:="6.31"} && sed -i -r 's/^\$sa_kill_level_deflt (.*);/\$sa_kill_level_deflt = '$SA_KILL';/g' /etc/amavis/conf.d/20-debian_defaults
SA_SPAM_SUBJECT=${SA_SPAM_SUBJECT:="***SPAM*** "} && sed -i -r 's/^\$sa_spam_subject_tag (.*);/\$sa_spam_subject_tag = '"'$SA_SPAM_SUBJECT'"';/g' /etc/amavis/conf.d/20-debian_defaults
test -e /tmp/docker-mailserver/spamassassin-rules.cf && cp /tmp/docker-mailserver/spamassassin-rules.cf /etc/spamassassin/
fi
# Clamav
if [ "$ENABLE_CLAMAV" = 0 ]; then
notify 'warn' "Clamav is disabled. You can enable it with 'ENABLE_CLAMAV=1'"
echo "@bypass_virus_checks_maps = (1);" >> $dms_amavis_file
elif [ "$ENABLE_CLAMAV" = 1 ]; then
notify 'inf' "Enabling clamav"
fi
echo "1; # ensure a defined return" >> $dms_amavis_file
# Fail2ban
if [ "$ENABLE_FAIL2BAN" = 1 ]; then
notify 'inf' "Fail2ban enabled"
test -e /tmp/docker-mailserver/fail2ban-fail2ban.cf && cp /tmp/docker-mailserver/fail2ban-fail2ban.cf /etc/fail2ban/fail2ban.local
test -e /tmp/docker-mailserver/fail2ban-jail.cf && cp /tmp/docker-mailserver/fail2ban-jail.cf /etc/fail2ban/jail.local
else
# Disable logrotate config for fail2ban if not enabled
rm -f /etc/logrotate.d/fail2ban
fi
# Fix cron.daily for spamassassin
sed -i -e 's~invoke-rc.d spamassassin reload~/etc/init\.d/spamassassin reload~g' /etc/cron.daily/spamassassin
# Copy user provided configuration files if provided
if [ -f /tmp/docker-mailserver/amavis.cf ]; then
cp /tmp/docker-mailserver/amavis.cf /etc/amavis/conf.d/50-user
fi
}
function _setup_elk_forwarder() {
notify 'task' 'Setting up Elk forwarder'
ELK_PORT=${ELK_PORT:="5044"}
ELK_HOST=${ELK_HOST:="elk"}
notify 'inf' "Enabling log forwarding to ELK ($ELK_HOST:$ELK_PORT)"
cat /etc/filebeat/filebeat.yml.tmpl \
| sed "s@\$ELK_HOST@$ELK_HOST@g" \
| sed "s@\$ELK_PORT@$ELK_PORT@g" \
> /etc/filebeat/filebeat.yml
}
function _setup_environment() {
notify 'task' 'Setting up /etc/environment'
local banner="# docker environment"
local var
if ! grep -q "$banner" /etc/environment; then
echo $banner >> /etc/environment
for var in "VIRUSMAILS_DELETE_DELAY"; do
echo "$var=${!var}" >> /etc/environment
done
fi
}
##########################################################################
# << Setup Stack
##########################################################################
##########################################################################
# >> Fix Stack
#
# Description: Place functions for temporary workarounds and fixes here
##########################################################################
function fix() {
notify 'taskgrg' "Post-configuration checks..."
for _func in "${FUNCS_FIX[@]}";do
$_func
[ $? != 0 ] && defunc
done
notify 'taskgrg' "Remove leftover pid files from a stop/start"
rm -rf /var/run/*.pid /var/run/*/*.pid
touch /dev/shm/supervisor.sock
}
function _fix_var_mail_permissions() {
notify 'task' 'Checking /var/mail permissions'
# Fix permissions, but skip this if 3 levels deep the user id is already set
if [ `find /var/mail -maxdepth 3 -a \( \! -user 5000 -o \! -group 5000 \) | grep -c .` != 0 ]; then
notify 'inf' "Fixing /var/mail permissions"
chown -R 5000:5000 /var/mail
else
notify 'inf' "Permissions in /var/mail look OK"
return 0
fi
}
function _fix_var_amavis_permissions() {
if [[ "$ONE_DIR" -eq 0 ]]; then
amavis_state_dir=/var/lib/amavis
else
amavis_state_dir=/var/mail-state/lib-amavis
fi
notify 'task' 'Checking $amavis_state_dir permissions'
amavis_permissions_status=$(find -H $amavis_state_dir -maxdepth 3 -a \( \! -user amavis -o \! -group amavis \))
if [ -n "$amavis_permissions_status" ]; then
notify 'inf' "Fixing $amavis_state_dir permissions"
chown -hR amavis:amavis $amavis_state_dir
else
notify 'inf' "Permissions in $amavis_state_dir look OK"
return 0
fi
}
function _fix_cleanup_clamav() {
notify 'task' 'Cleaning up disabled Clamav'
rm -f /etc/logrotate.d/clamav-*
rm -f /etc/cron.d/freshclam
}
##########################################################################
# << Fix Stack
##########################################################################
##########################################################################
# >> Misc Stack
#
# Description: Place functions that do not fit in the sections above here
##########################################################################
function misc() {
notify 'taskgrp' 'Starting Misc'
for _func in "${FUNCS_MISC[@]}";do
$_func
[ $? != 0 ] && defunc
done
}
function _misc_save_states() {
# consolidate all states into a single directory (`/var/mail-state`) to allow persistence using docker volumes
statedir=/var/mail-state
if [ "$ONE_DIR" = 1 -a -d $statedir ]; then
notify 'inf' "Consolidating all state onto $statedir"
for d in /var/spool/postfix /var/lib/postfix /var/lib/amavis /var/lib/clamav /var/lib/spamassassin /var/lib/fail2ban /var/lib/postgrey; do
dest=$statedir/`echo $d | sed -e 's/.var.//; s/\//-/g'`
if [ -d $dest ]; then
notify 'inf' " Destination $dest exists, linking $d to it"
rm -rf $d
ln -s $dest $d
elif [ -d $d ]; then
notify 'inf' " Moving contents of $d to $dest:" `ls $d`
mv $d $dest
ln -s $dest $d
else
notify 'inf' " Linking $d to $dest"
mkdir -p $dest
ln -s $dest $d
fi
done
notify 'inf' 'Fixing /var/mail-state/* permissions'
chown -R clamav /var/mail-state/lib-clamav
chown -R postfix /var/mail-state/lib-postfix
chown -R postgrey /var/mail-state/lib-postgrey
chown -R debian-spamd /var/mail-state/lib-spamassassin
chown -R postfix /var/mail-state/spool-postfix
fi
}
##########################################################################
# >> Start Daemons
##########################################################################
function start_daemons() {
notify 'taskgrp' 'Starting mail server'
for _func in "${DAEMONS_START[@]}";do
$_func
[ $? != 0 ] && defunc
done
}
function _start_daemons_cron() {
notify 'task' 'Starting cron' 'n'
supervisorctl start cron
}
function _start_daemons_rsyslog() {
notify 'task' 'Starting rsyslog ' 'n'
supervisorctl start rsyslog
}
function _start_daemons_saslauthd() {
notify 'task' 'Starting saslauthd' 'n'
supervisorctl start "saslauthd_${SASLAUTHD_MECHANISMS}"
}
function _start_daemons_fail2ban() {
notify 'task' 'Starting fail2ban ' 'n'
touch /var/log/auth.log
# Delete fail2ban.sock that probably was left here after container restart
if [ -e /var/run/fail2ban/fail2ban.sock ]; then
rm /var/run/fail2ban/fail2ban.sock
fi
supervisorctl start fail2ban
}
function _start_daemons_opendkim() {
notify 'task' 'Starting opendkim ' 'n'
supervisorctl start opendkim
}
function _start_daemons_opendmarc() {
notify 'task' 'Starting opendmarc ' 'n'
supervisorctl start opendmarc
}
function _start_daemons_postfix() {
notify 'task' 'Starting postfix' 'n'
supervisorctl start postfix
}
function _start_daemons_dovecot() {
# Here we are starting sasl and imap, not pop3 because it's disabled by default
notify 'task' 'Starting dovecot services' 'n'
if [ "$ENABLE_POP3" = 1 ]; then
notify 'task' 'Starting pop3 services' 'n'
mv /etc/dovecot/protocols.d/pop3d.protocol.disab /etc/dovecot/protocols.d/pop3d.protocol
fi
if [ -f /tmp/docker-mailserver/dovecot.cf ]; then
cp /tmp/docker-mailserver/dovecot.cf /etc/dovecot/local.conf
fi
supervisorctl start dovecot
# @TODO fix: on integration test
# doveadm: Error: userdb lookup: connect(/var/run/dovecot/auth-userdb) failed: No such file or directory
# doveadm: Fatal: user listing failed
#if [ "$ENABLE_LDAP" != 1 ]; then
#echo "Listing users"
#/usr/sbin/dovecot user '*'
#fi
}
function _start_daemons_filebeat() {
notify 'task' 'Starting filebeat' 'n'
supervisorctl start filebeat
}
function _start_daemons_fetchmail() {
notify 'task' 'Starting fetchmail' 'n'
/usr/local/bin/setup-fetchmail
supervisorctl start fetchmail
}
function _start_daemons_clamav() {
notify 'task' 'Starting clamav' 'n'
supervisorctl start clamav
}
function _start_daemons_postgrey() {
notify 'task' 'Starting postgrey' 'n'
rm -f /var/run/postgrey/postgrey.pid
supervisorctl start postgrey
}
function _start_daemons_amavis() {
notify 'task' 'Starting amavis' 'n'
supervisorctl start amavis
}
##########################################################################
# << Start Daemons
##########################################################################
##########################################################################
# Start check for update postfix-accounts and postfix-virtual
##########################################################################
function _start_changedetector() {
notify 'task' 'Starting changedetector' 'n'
supervisorctl start changedetector
}
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# ! CARE --> DON'T CHANGE, unless you exactly know what you are doing
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# >>
if [[ ${DEFAULT_VARS["DMS_DEBUG"]} == 1 ]]; then
notify 'taskgrp' ""
notify 'taskgrp' "#"
notify 'taskgrp' "#"
notify 'taskgrp' "# ENV"
notify 'taskgrp' "#"
notify 'taskgrp' "#"
notify 'taskgrp' ""
printenv
fi
notify 'taskgrp' ""
notify 'taskgrp' "#"
notify 'taskgrp' "#"
notify 'taskgrp' "# docker-mailserver"
notify 'taskgrp' "#"
notify 'taskgrp' "#"
notify 'taskgrp' ""
register_functions
check
setup
fix
misc
start_daemons
notify 'taskgrp' ""
notify 'taskgrp' "#"
notify 'taskgrp' "# $HOSTNAME is up and running"
notify 'taskgrp' "#"
notify 'taskgrp' ""
touch /var/log/mail/mail.log
tail -fn 0 /var/log/mail/mail.log
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# ! CARE --> DON'T CHANGE, unless you exactly know what you are doing
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# <<
exit 0