mirror of
https://github.com/docker-mailserver/docker-mailserver.git
synced 2024-01-19 02:48:50 +00:00
212 lines
7.4 KiB
Bash
Executable file
212 lines
7.4 KiB
Bash
Executable file
#!/bin/bash
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# create date for log output
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log_date=$(date +"%Y-%m-%d %H:%M:%S ")
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echo "${log_date} Start check-for-changes script."
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# change directory
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cd /tmp/docker-mailserver
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# Check postfix-accounts.cf exist else break
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if [ ! -f postfix-accounts.cf ]; then
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echo "${log_date} postfix-accounts.cf is missing! This should not run! Exit!"
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exit
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fi
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# Verify checksum file exists; must be prepared by start-mailserver.sh
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CHKSUM_FILE=/tmp/docker-mailserver-config-chksum
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if [ ! -f $CHKSUM_FILE ]; then
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echo "${log_date} ${CHKSUM_FILE} is missing! Start script failed? Exit!"
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exit
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fi
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# Determine postmaster address, duplicated from start-mailserver.sh
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# This script previously didn't work when POSTMASTER_ADDRESS was empty
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if [[ -n "${OVERRIDE_HOSTNAME}" ]]; then
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DOMAINNAME=$(echo "${OVERRIDE_HOSTNAME}" | sed s/[^.]*.//)
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else
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DOMAINNAME="$(hostname -d)"
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fi
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PM_ADDRESS="${POSTMASTER_ADDRESS:=postmaster@${DOMAINNAME}}"
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echo "${log_date} Using postmaster address ${PM_ADDRESS}"
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# Create an array of files to monitor, must be the same as in start-mailserver.sh
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declare -a cf_files=()
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for file in postfix-accounts.cf postfix-virtual.cf postfix-aliases.cf dovecot-quotas.cf; do
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[ -f "$file" ] && cf_files+=("$file")
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done
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# Wait to make sure server is up before we start
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sleep 10
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# Run forever
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while true; do
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# recreate logdate
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log_date=$(date +"%Y-%m-%d %H:%M:%S ")
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# Get chksum and check it, no need to lock config yet
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chksum=$(sha512sum -c --ignore-missing $CHKSUM_FILE)
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if [[ $chksum == *"FAIL"* ]]; then
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echo "${log_date} Change detected"
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# Bug alert! This overwrites the alias set by start-mailserver.sh
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# Take care that changes in one script are propagated to the other
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# Also note that changes are performed in place and are not atomic
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# We should fix that and write to temporary files, stop, swap and start
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# Lock configuration while working
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# Not fixing indentation yet to reduce diff (fix later in separate commit)
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(
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flock -e 200
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#regen postix aliases.
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echo "root: ${PM_ADDRESS}" > /etc/aliases
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if [ -f /tmp/docker-mailserver/postfix-aliases.cf ]; then
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cat /tmp/docker-mailserver/postfix-aliases.cf>>/etc/aliases
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fi
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postalias /etc/aliases
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#regen postfix accounts.
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echo -n > /etc/postfix/vmailbox
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echo -n > /etc/dovecot/userdb
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if [ -f /tmp/docker-mailserver/postfix-accounts.cf -a "$ENABLE_LDAP" != 1 ]; then
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sed -i 's/\r//g' /tmp/docker-mailserver/postfix-accounts.cf
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echo "# WARNING: this file is auto-generated. Modify config/postfix-accounts.cf to edit user list." > /etc/postfix/vmailbox
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# Checking that /tmp/docker-mailserver/postfix-accounts.cf ends with a newline
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sed -i -e '$a\' /tmp/docker-mailserver/postfix-accounts.cf
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chown dovecot:dovecot /etc/dovecot/userdb
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chmod 640 /etc/dovecot/userdb
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sed -i -e '/\!include auth-ldap\.conf\.ext/s/^/#/' /etc/dovecot/conf.d/10-auth.conf
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sed -i -e '/\!include auth-passwdfile\.inc/s/^#//' /etc/dovecot/conf.d/10-auth.conf
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# rebuild relay host
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if [ ! -z "$RELAY_HOST" ]; then
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# keep old config
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echo -n > /etc/postfix/sasl_passwd
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echo -n > /etc/postfix/relayhost_map
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if [ ! -z "$SASL_PASSWD" ]; then
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echo "$SASL_PASSWD" >> /etc/postfix/sasl_passwd
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fi
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# add domain-specific auth from config file
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if [ -f /tmp/docker-mailserver/postfix-sasl-password.cf ]; then
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(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-sasl-password.cf || true) | while read line; do
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if ! echo "$line" | grep -q -e "\s*#"; then
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echo "$line" >> /etc/postfix/sasl_passwd
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fi
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done
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fi
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# add default relay
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if [ ! -z "$RELAY_USER" ] && [ ! -z "$RELAY_PASSWORD" ]; then
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echo "[$RELAY_HOST]:$RELAY_PORT $RELAY_USER:$RELAY_PASSWORD" >> /etc/postfix/sasl_passwd
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fi
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# add relay maps from file
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if [ -f /tmp/docker-mailserver/postfix-relaymap.cf ]; then
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(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-relaymap.cf || true) | while read line; do
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if ! echo "$line" | grep -q -e "\s*#"; then
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echo "$line" >> /etc/postfix/relayhost_map
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fi
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done
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fi
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fi
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# Creating users
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# 'pass' is encrypted
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# comments and empty lines are ignored
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grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-accounts.cf | while IFS=$'|' read login pass
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do
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# Setting variables for better readability
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user=$(echo ${login} | cut -d @ -f1)
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domain=$(echo ${login} | cut -d @ -f2)
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user_attributes=""
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# test if user has a defined quota
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if [ -f /tmp/docker-mailserver/dovecot-quotas.cf ]; then
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user_quota=($(grep "${user}@${domain}:" -i /tmp/docker-mailserver/dovecot-quotas.cf | tr ':' '\n'))
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if [ ${#user_quota[@]} -eq 2 ]; then
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user_attributes="${user_attributes}userdb_quota_rule=*:bytes=${user_quota[1]}"
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fi
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fi
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# Let's go!
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echo "${login} ${domain}/${user}/" >> /etc/postfix/vmailbox
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# User database for dovecot has the following format:
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# user:password:uid:gid:(gecos):home:(shell):extra_fields
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# Example :
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# ${login}:${pass}:5000:5000::/var/mail/${domain}/${user}::userdb_mail=maildir:/var/mail/${domain}/${user}
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echo "${login}:${pass}:5000:5000::/var/mail/${domain}/${user}::${user_attributes}" >> /etc/dovecot/userdb
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mkdir -p /var/mail/${domain}/${user}
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# Copy user provided sieve file, if present
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test -e /tmp/docker-mailserver/${login}.dovecot.sieve && cp /tmp/docker-mailserver/${login}.dovecot.sieve /var/mail/${domain}/${user}/.dovecot.sieve
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echo ${domain} >> /tmp/vhost.tmp
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# add domains to relayhost_map
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if [ ! -z "$RELAY_HOST" ]; then
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if ! grep -q -e "^@${domain}\s" /etc/postfix/relayhost_map; then
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echo "@${domain} [$RELAY_HOST]:$RELAY_PORT" >> /etc/postfix/relayhost_map
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fi
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fi
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done
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fi
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if [ -f /etc/postfix/sasl_passwd ]; then
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chown root:root /etc/postfix/sasl_passwd
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chmod 0600 /etc/postfix/sasl_passwd
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fi
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if [ -f /etc/postfix/relayhost_map ]; then
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chown root:root /etc/postfix/relayhost_map
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chmod 0600 /etc/postfix/relayhost_map
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fi
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if [ -f postfix-virtual.cf ]; then
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# regen postfix aliases
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echo -n > /etc/postfix/virtual
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echo -n > /etc/postfix/regexp
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if [ -f /tmp/docker-mailserver/postfix-virtual.cf ]; then
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# Copying virtual file
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cp -f /tmp/docker-mailserver/postfix-virtual.cf /etc/postfix/virtual
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(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-virtual.cf || true) | while read from to
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do
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# Setting variables for better readability
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uname=$(echo ${from} | cut -d @ -f1)
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domain=$(echo ${from} | cut -d @ -f2)
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# if they are equal it means the line looks like: "user1 other@domain.tld"
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test "$uname" != "$domain" && echo ${domain} >> /tmp/vhost.tmp
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done
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fi
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if [ -f /tmp/docker-mailserver/postfix-regexp.cf ]; then
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# Copying regexp alias file
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cp -f /tmp/docker-mailserver/postfix-regexp.cf /etc/postfix/regexp
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sed -i -e '/^virtual_alias_maps/{
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s/ regexp:.*//
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s/$/ regexp:\/etc\/postfix\/regexp/
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}' /etc/postfix/main.cf
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fi
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fi
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# Set vhost
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if [ -f /tmp/vhost.tmp ]; then
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cat /tmp/vhost.tmp | sort | uniq > /etc/postfix/vhost && rm /tmp/vhost.tmp
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fi
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# Set right new if needed
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if [ `find /var/mail -maxdepth 3 -a \( \! -user 5000 -o \! -group 5000 \) | grep -c .` != 0 ]; then
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chown -R 5000:5000 /var/mail
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fi
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# Restart of the postfix
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supervisorctl restart postfix
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# Prevent restart of dovecot when smtp_only=1
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if [ ! $SMTP_ONLY = 1 ]; then
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supervisorctl restart dovecot
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fi
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echo "${log_date} Update checksum"
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sha512sum ${cf_files[@]/#/--tag } >$CHKSUM_FILE
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) 200<postfix-accounts.cf # end lock
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fi
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sleep 1
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done
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