docker-mailserver/target/scripts/startup/setup.d/dovecot.sh
2023-03-06 10:06:50 +01:00

225 lines
8.3 KiB
Bash

#!/bin/bash
function _setup_dovecot
{
_log 'debug' '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
sed -i 's|^postmaster_address = .*$|postmaster_address = '"${POSTMASTER_ADDRESS}"'|g' /etc/dovecot/conf.d/15-lda.conf
if ! grep -q -E '^stats_writer_socket_path=' /etc/dovecot/dovecot.conf
then
printf '\n%s\n' 'stats_writer_socket_path=' >>/etc/dovecot/dovecot.conf
fi
# set mail_location according to mailbox format
case "${DOVECOT_MAILBOX_FORMAT}" in
( 'sdbox' | 'mdbox' )
_log 'trace' "Dovecot ${DOVECOT_MAILBOX_FORMAT} format configured"
sed -i -e \
"s|^mail_location = .*$|mail_location = ${DOVECOT_MAILBOX_FORMAT}:\/var\/mail\/%d\/%n|g" \
/etc/dovecot/conf.d/10-mail.conf
_log 'trace' 'Enabling cron job for dbox purge'
mv /etc/cron.d/dovecot-purge.disabled /etc/cron.d/dovecot-purge
chmod 644 /etc/cron.d/dovecot-purge
;;
( * )
_log 'trace' 'Dovecot default format (maildir) configured'
sed -i -e 's|^mail_location = .*$|mail_location = maildir:\/var\/mail\/%d\/%n|g' /etc/dovecot/conf.d/10-mail.conf
;;
esac
# enable Managesieve service by setting the symlink
# to the configuration file Dovecot will actually find
if [[ ${ENABLE_MANAGESIEVE} -eq 1 ]]
then
_log 'trace' '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/*
[[ -d /tmp/docker-mailserver/sieve-filter ]] && cp /tmp/docker-mailserver/sieve-filter/* /usr/lib/dovecot/sieve-filter/
[[ -d /tmp/docker-mailserver/sieve-pipe ]] && cp /tmp/docker-mailserver/sieve-pipe/* /usr/lib/dovecot/sieve-pipe/
# create global sieve directories
mkdir -p /usr/lib/dovecot/sieve-global/before
mkdir -p /usr/lib/dovecot/sieve-global/after
if [[ -f /tmp/docker-mailserver/before.dovecot.sieve ]]
then
cp /tmp/docker-mailserver/before.dovecot.sieve /usr/lib/dovecot/sieve-global/before/50-before.dovecot.sieve
sievec /usr/lib/dovecot/sieve-global/before/50-before.dovecot.sieve
else
rm -f /usr/lib/dovecot/sieve-global/before/50-before.dovecot.sieve /usr/lib/dovecot/sieve-global/before/50-before.dovecot.svbin
fi
if [[ -f /tmp/docker-mailserver/after.dovecot.sieve ]]
then
cp /tmp/docker-mailserver/after.dovecot.sieve /usr/lib/dovecot/sieve-global/after/50-after.dovecot.sieve
sievec /usr/lib/dovecot/sieve-global/after/50-after.dovecot.sieve
else
rm -f /usr/lib/dovecot/sieve-global/after/50-after.dovecot.sieve /usr/lib/dovecot/sieve-global/after/50-after.dovecot.svbin
fi
# sieve will move spams to .Junk folder when SPAMASSASSIN_SPAM_TO_INBOX=1 and MOVE_SPAM_TO_JUNK=1
if [[ ${SPAMASSASSIN_SPAM_TO_INBOX} -eq 1 ]] && [[ ${MOVE_SPAM_TO_JUNK} -eq 1 ]]
then
_log 'debug' 'Spam messages will be moved to the Junk folder'
cp /etc/dovecot/sieve/before/60-spam.sieve /usr/lib/dovecot/sieve-global/before/
sievec /usr/lib/dovecot/sieve-global/before/60-spam.sieve
else
rm -f /usr/lib/dovecot/sieve-global/before/60-spam.sieve /usr/lib/dovecot/sieve-global/before/60-spam.svbin
fi
chown docker:docker -R /usr/lib/dovecot/sieve*
chmod 550 -R /usr/lib/dovecot/sieve*
chmod -f +x /usr/lib/dovecot/sieve-pipe/*
if [[ ${ENABLE_POP3} -eq 1 ]]
then
_log 'debug' 'Enabling POP3 services'
mv /etc/dovecot/protocols.d/pop3d.protocol.disab /etc/dovecot/protocols.d/pop3d.protocol
fi
[[ -f /tmp/docker-mailserver/dovecot.cf ]] && cp /tmp/docker-mailserver/dovecot.cf /etc/dovecot/local.conf
}
function _setup_dovecot_quota
{
_log 'debug' 'Setting up Dovecot quota'
# Dovecot quota is disabled when using LDAP or SMTP_ONLY or when explicitly disabled.
if [[ ${ACCOUNT_PROVISIONER} != 'FILE' ]] || [[ ${SMTP_ONLY} -eq 1 ]] || [[ ${ENABLE_QUOTAS} -eq 0 ]]
then
# disable dovecot quota in docevot confs
if [[ -f /etc/dovecot/conf.d/90-quota.conf ]]
then
mv /etc/dovecot/conf.d/90-quota.conf /etc/dovecot/conf.d/90-quota.conf.disab
sed -i \
"s|mail_plugins = \$mail_plugins quota|mail_plugins = \$mail_plugins|g" \
/etc/dovecot/conf.d/10-mail.conf
sed -i \
"s|mail_plugins = \$mail_plugins imap_quota|mail_plugins = \$mail_plugins|g" \
/etc/dovecot/conf.d/20-imap.conf
fi
# disable quota policy check in postfix
sed -i "s|check_policy_service inet:localhost:65265||g" /etc/postfix/main.cf
else
if [[ -f /etc/dovecot/conf.d/90-quota.conf.disab ]]
then
mv /etc/dovecot/conf.d/90-quota.conf.disab /etc/dovecot/conf.d/90-quota.conf
sed -i \
"s|mail_plugins = \$mail_plugins|mail_plugins = \$mail_plugins quota|g" \
/etc/dovecot/conf.d/10-mail.conf
sed -i \
"s|mail_plugins = \$mail_plugins|mail_plugins = \$mail_plugins imap_quota|g" \
/etc/dovecot/conf.d/20-imap.conf
fi
local MESSAGE_SIZE_LIMIT_MB=$((POSTFIX_MESSAGE_SIZE_LIMIT / 1000000))
local MAILBOX_LIMIT_MB=$((POSTFIX_MAILBOX_SIZE_LIMIT / 1000000))
sed -i \
"s|quota_max_mail_size =.*|quota_max_mail_size = ${MESSAGE_SIZE_LIMIT_MB}$([[ ${MESSAGE_SIZE_LIMIT_MB} -eq 0 ]] && echo "" || echo "M")|g" \
/etc/dovecot/conf.d/90-quota.conf
sed -i \
"s|quota_rule = \*:storage=.*|quota_rule = *:storage=${MAILBOX_LIMIT_MB}$([[ ${MAILBOX_LIMIT_MB} -eq 0 ]] && echo "" || echo "M")|g" \
/etc/dovecot/conf.d/90-quota.conf
if [[ -d /tmp/docker-mailserver ]] && [[ ! -f /tmp/docker-mailserver/dovecot-quotas.cf ]]
then
_log 'trace' "'/tmp/docker-mailserver/dovecot-quotas.cf' is not provided. Using default quotas."
: >/tmp/docker-mailserver/dovecot-quotas.cf
fi
# enable quota policy check in postfix
sed -i -E \
"s|(reject_unknown_recipient_domain)|\1, check_policy_service inet:localhost:65265|g" \
/etc/postfix/main.cf
fi
}
function _setup_dovecot_local_user
{
[[ ${SMTP_ONLY} -eq 1 ]] && return 0
[[ ${ACCOUNT_PROVISIONER} == 'FILE' ]] || return 0
_log 'debug' 'Setting up Dovecot Local User'
if [[ ! -f /tmp/docker-mailserver/postfix-accounts.cf ]]
then
_log 'trace' "No mail accounts to create - '/tmp/docker-mailserver/postfix-accounts.cf' is missing"
fi
function __wait_until_an_account_is_added_or_shutdown
{
local SLEEP_PERIOD='10'
for (( COUNTER = 11 ; COUNTER >= 0 ; COUNTER-- ))
do
if [[ $(grep -cE '.+@.+\|' /tmp/docker-mailserver/postfix-accounts.cf 2>/dev/null || printf '%s' '0') -ge 1 ]]
then
return 0
else
_log 'warn' "You need at least one mail account to start Dovecot ($(( ( COUNTER + 1 ) * SLEEP_PERIOD ))s left for account creation before shutdown)"
sleep "${SLEEP_PERIOD}"
fi
done
_dms_panic__fail_init 'accounts provisioning because no accounts were provided - Dovecot could not be started' '' 'immediate'
}
__wait_until_an_account_is_added_or_shutdown
_create_accounts
}
function _setup_dovecot_inet_protocols
{
[[ ${DOVECOT_INET_PROTOCOLS} == 'all' ]] && return 0
_log 'trace' 'Setting up DOVECOT_INET_PROTOCOLS option'
local PROTOCOL
# https://dovecot.org/doc/dovecot-example.conf
if [[ ${DOVECOT_INET_PROTOCOLS} == "ipv4" ]]
then
PROTOCOL='*' # IPv4 only
elif [[ ${DOVECOT_INET_PROTOCOLS} == "ipv6" ]]
then
PROTOCOL='[::]' # IPv6 only
else
# Unknown value, panic.
_dms_panic__invalid_value 'DOVECOT_INET_PROTOCOLS' "${DOVECOT_INET_PROTOCOLS}" 'immediate'
fi
sedfile -i "s|^#listen =.*|listen = ${PROTOCOL}|g" /etc/dovecot/dovecot.conf
}
function _setup_dovecot_dhparam
{
_setup_dhparam 'Dovecot' '/etc/dovecot/dh.pem'
}
function _setup_dovecot_hostname
{
_log 'debug' 'Applying hostname to Dovecot'
sed -i "s|^#hostname =.*$|hostname = '${HOSTNAME}'|g" /etc/dovecot/conf.d/15-lda.conf
}