mirror of
https://github.com/docker-mailserver/docker-mailserver.git
synced 2024-01-19 02:48:50 +00:00
1213 lines
38 KiB
Bash
1213 lines
38 KiB
Bash
#!/bin/bash
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function _setup
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{
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_log 'info' 'Configuring mail server'
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for FUNC in "${FUNCS_SETUP[@]}"
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do
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${FUNC}
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done
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# All startup modifications to configs should have taken place before calling this:
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_prepare_for_change_detection
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}
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function _setup_supervisor
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{
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SUPERVISOR_LOGLEVEL="${SUPERVISOR_LOGLEVEL:-warn}"
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if ! grep -q "loglevel = ${SUPERVISOR_LOGLEVEL}" /etc/supervisor/supervisord.conf
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then
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case "${SUPERVISOR_LOGLEVEL}" in
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( 'critical' | 'error' | 'info' | 'debug' )
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sed -i -E \
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"s|(loglevel).*|\1 = ${SUPERVISOR_LOGLEVEL}|g" \
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/etc/supervisor/supervisord.conf
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supervisorctl reload
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exit
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;;
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( 'warn' ) ;;
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( * )
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_log 'warn' \
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"SUPERVISOR_LOGLEVEL '${SUPERVISOR_LOGLEVEL}' unknown. Using default 'warn'"
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;;
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esac
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fi
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return 0
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}
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# File/folder permissions are fine when using docker volumes, but may be wrong
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# when file system folders are mounted into the container.
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# Set the expected values and create missing folders/files just in case.
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function _setup_file_permissions
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{
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_log 'debug' 'Setting file and directory permissions'
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mkdir -p /var/log/supervisor
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mkdir -p /var/log/mail
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chown syslog:root /var/log/mail
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touch /var/log/mail/clamav.log
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chown clamav:adm /var/log/mail/clamav.log
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chmod 640 /var/log/mail/clamav.log
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touch /var/log/mail/freshclam.log
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chown clamav:adm /var/log/mail/freshclam.log
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chmod 640 /var/log/mail/freshclam.log
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}
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function _setup_mailname
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{
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_log 'debug' "Setting up mailname and creating '/etc/mailname'"
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echo "${DOMAINNAME}" >/etc/mailname
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}
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function _setup_amavis
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{
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if [[ ${ENABLE_AMAVIS} -eq 1 ]]
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then
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_log 'debug' 'Setting up Amavis'
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sed -i \
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"s|^#\$myhostname = \"mail.example.com\";|\$myhostname = \"${HOSTNAME}\";|" \
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/etc/amavis/conf.d/05-node_id
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else
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_log 'debug' "Removing Amavis from Postfix's configuration"
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sed -i 's|content_filter =.*|content_filter =|' /etc/postfix/main.cf
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_log 'debug' 'Disabling Amavis cron job'
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mv /etc/cron.d/amavisd-new /etc/cron.d/amavisd-new.disabled
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chmod 0 /etc/cron.d/amavisd-new.disabled
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[[ ${ENABLE_CLAMAV} -eq 1 ]] && _log 'warn' 'ClamAV will not work when Amavis is disabled. Remove ENABLE_AMAVIS=0 from your configuration to fix it.'
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[[ ${ENABLE_SPAMASSASSIN} -eq 1 ]] && _log 'warn' 'Spamassassin will not work when Amavis is disabled. Remove ENABLE_AMAVIS=0 from your configuration to fix it.'
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fi
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}
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function _setup_dmarc_hostname
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{
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_log 'debug' 'Setting up DMARC'
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sed -i -e \
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"s|^AuthservID.*$|AuthservID ${HOSTNAME}|g" \
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-e "s|^TrustedAuthservIDs.*$|TrustedAuthservIDs ${HOSTNAME}|g" \
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/etc/opendmarc.conf
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}
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function _setup_postfix_hostname
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{
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_log 'debug' 'Applying hostname and domainname to Postfix'
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postconf "myhostname = ${HOSTNAME}"
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postconf "mydomain = ${DOMAINNAME}"
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}
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function _setup_dovecot_hostname
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{
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_log 'debug' 'Applying hostname to Dovecot'
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sed -i \
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"s|^#hostname =.*$|hostname = '${HOSTNAME}'|g" \
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/etc/dovecot/conf.d/15-lda.conf
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}
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function _setup_dovecot
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{
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_log 'debug' 'Setting up Dovecot'
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cp -a /usr/share/dovecot/protocols.d /etc/dovecot/
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# disable pop3 (it will be eventually enabled later in the script, if requested)
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mv /etc/dovecot/protocols.d/pop3d.protocol /etc/dovecot/protocols.d/pop3d.protocol.disab
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mv /etc/dovecot/protocols.d/managesieved.protocol /etc/dovecot/protocols.d/managesieved.protocol.disab
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sed -i -e 's|#ssl = yes|ssl = yes|g' /etc/dovecot/conf.d/10-master.conf
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sed -i -e 's|#port = 993|port = 993|g' /etc/dovecot/conf.d/10-master.conf
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sed -i -e 's|#port = 995|port = 995|g' /etc/dovecot/conf.d/10-master.conf
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sed -i -e 's|#ssl = yes|ssl = required|g' /etc/dovecot/conf.d/10-ssl.conf
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sed -i 's|^postmaster_address = .*$|postmaster_address = '"${POSTMASTER_ADDRESS}"'|g' /etc/dovecot/conf.d/15-lda.conf
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if ! grep -q -E '^stats_writer_socket_path=' /etc/dovecot/dovecot.conf
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then
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printf '\n%s\n' 'stats_writer_socket_path=' >>/etc/dovecot/dovecot.conf
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fi
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# set mail_location according to mailbox format
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case "${DOVECOT_MAILBOX_FORMAT}" in
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( 'sdbox' | 'mdbox' )
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_log 'trace' "Dovecot ${DOVECOT_MAILBOX_FORMAT} format configured"
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sed -i -e \
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"s|^mail_location = .*$|mail_location = ${DOVECOT_MAILBOX_FORMAT}:\/var\/mail\/%d\/%n|g" \
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/etc/dovecot/conf.d/10-mail.conf
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_log 'trace' 'Enabling cron job for dbox purge'
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mv /etc/cron.d/dovecot-purge.disabled /etc/cron.d/dovecot-purge
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chmod 644 /etc/cron.d/dovecot-purge
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;;
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( * )
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_log 'trace' 'Dovecot default format (maildir) configured'
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sed -i -e 's|^mail_location = .*$|mail_location = maildir:\/var\/mail\/%d\/%n|g' /etc/dovecot/conf.d/10-mail.conf
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;;
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esac
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# enable Managesieve service by setting the symlink
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# to the configuration file Dovecot will actually find
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if [[ ${ENABLE_MANAGESIEVE} -eq 1 ]]
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then
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_log 'trace' 'Sieve management enabled'
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mv /etc/dovecot/protocols.d/managesieved.protocol.disab /etc/dovecot/protocols.d/managesieved.protocol
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fi
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# copy pipe and filter programs, if any
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rm -f /usr/lib/dovecot/sieve-filter/*
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rm -f /usr/lib/dovecot/sieve-pipe/*
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[[ -d /tmp/docker-mailserver/sieve-filter ]] && cp /tmp/docker-mailserver/sieve-filter/* /usr/lib/dovecot/sieve-filter/
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[[ -d /tmp/docker-mailserver/sieve-pipe ]] && cp /tmp/docker-mailserver/sieve-pipe/* /usr/lib/dovecot/sieve-pipe/
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# create global sieve directories
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mkdir -p /usr/lib/dovecot/sieve-global/before
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mkdir -p /usr/lib/dovecot/sieve-global/after
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if [[ -f /tmp/docker-mailserver/before.dovecot.sieve ]]
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then
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cp /tmp/docker-mailserver/before.dovecot.sieve /usr/lib/dovecot/sieve-global/before/50-before.dovecot.sieve
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sievec /usr/lib/dovecot/sieve-global/before/50-before.dovecot.sieve
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else
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rm -f /usr/lib/dovecot/sieve-global/before/50-before.dovecot.sieve /usr/lib/dovecot/sieve-global/before/50-before.dovecot.svbin
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fi
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if [[ -f /tmp/docker-mailserver/after.dovecot.sieve ]]
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then
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cp /tmp/docker-mailserver/after.dovecot.sieve /usr/lib/dovecot/sieve-global/after/50-after.dovecot.sieve
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sievec /usr/lib/dovecot/sieve-global/after/50-after.dovecot.sieve
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else
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rm -f /usr/lib/dovecot/sieve-global/after/50-after.dovecot.sieve /usr/lib/dovecot/sieve-global/after/50-after.dovecot.svbin
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fi
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# sieve will move spams to .Junk folder when SPAMASSASSIN_SPAM_TO_INBOX=1 and MOVE_SPAM_TO_JUNK=1
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if [[ ${SPAMASSASSIN_SPAM_TO_INBOX} -eq 1 ]] && [[ ${MOVE_SPAM_TO_JUNK} -eq 1 ]]
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then
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_log 'debug' 'Spam messages will be moved to the Junk folder'
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cp /etc/dovecot/sieve/before/60-spam.sieve /usr/lib/dovecot/sieve-global/before/
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sievec /usr/lib/dovecot/sieve-global/before/60-spam.sieve
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else
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rm -f /usr/lib/dovecot/sieve-global/before/60-spam.sieve /usr/lib/dovecot/sieve-global/before/60-spam.svbin
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fi
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chown docker:docker -R /usr/lib/dovecot/sieve*
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chmod 550 -R /usr/lib/dovecot/sieve*
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chmod -f +x /usr/lib/dovecot/sieve-pipe/*
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}
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function _setup_dovecot_quota
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{
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_log 'debug' 'Setting up Dovecot quota'
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# Dovecot quota is disabled when using LDAP or SMTP_ONLY or when explicitly disabled.
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if [[ ${ACCOUNT_PROVISIONER} != 'FILE' ]] || [[ ${SMTP_ONLY} -eq 1 ]] || [[ ${ENABLE_QUOTAS} -eq 0 ]]
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then
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# disable dovecot quota in docevot confs
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if [[ -f /etc/dovecot/conf.d/90-quota.conf ]]
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then
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mv /etc/dovecot/conf.d/90-quota.conf /etc/dovecot/conf.d/90-quota.conf.disab
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sed -i \
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"s|mail_plugins = \$mail_plugins quota|mail_plugins = \$mail_plugins|g" \
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/etc/dovecot/conf.d/10-mail.conf
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sed -i \
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"s|mail_plugins = \$mail_plugins imap_quota|mail_plugins = \$mail_plugins|g" \
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/etc/dovecot/conf.d/20-imap.conf
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fi
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# disable quota policy check in postfix
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sed -i "s|check_policy_service inet:localhost:65265||g" /etc/postfix/main.cf
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else
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if [[ -f /etc/dovecot/conf.d/90-quota.conf.disab ]]
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then
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mv /etc/dovecot/conf.d/90-quota.conf.disab /etc/dovecot/conf.d/90-quota.conf
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sed -i \
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"s|mail_plugins = \$mail_plugins|mail_plugins = \$mail_plugins quota|g" \
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/etc/dovecot/conf.d/10-mail.conf
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sed -i \
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"s|mail_plugins = \$mail_plugin|mail_plugins = \$mail_plugins imap_quota|g" \
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/etc/dovecot/conf.d/20-imap.conf
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fi
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local MESSAGE_SIZE_LIMIT_MB=$((POSTFIX_MESSAGE_SIZE_LIMIT / 1000000))
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local MAILBOX_LIMIT_MB=$((POSTFIX_MAILBOX_SIZE_LIMIT / 1000000))
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sed -i \
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"s|quota_max_mail_size =.*|quota_max_mail_size = ${MESSAGE_SIZE_LIMIT_MB}$([[ ${MESSAGE_SIZE_LIMIT_MB} -eq 0 ]] && echo "" || echo "M")|g" \
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/etc/dovecot/conf.d/90-quota.conf
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sed -i \
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"s|quota_rule = \*:storage=.*|quota_rule = *:storage=${MAILBOX_LIMIT_MB}$([[ ${MAILBOX_LIMIT_MB} -eq 0 ]] && echo "" || echo "M")|g" \
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/etc/dovecot/conf.d/90-quota.conf
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if [[ -d /tmp/docker-mailserver ]] && [[ ! -f /tmp/docker-mailserver/dovecot-quotas.cf ]]
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then
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_log 'trace' "'/tmp/docker-mailserver/dovecot-quotas.cf' is not provided. Using default quotas."
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: >/tmp/docker-mailserver/dovecot-quotas.cf
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fi
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# enable quota policy check in postfix
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sed -i \
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"s|reject_unknown_recipient_domain, reject_rbl_client zen.spamhaus.org|reject_unknown_recipient_domain, check_policy_service inet:localhost:65265, reject_rbl_client zen.spamhaus.org|g" \
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/etc/postfix/main.cf
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fi
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}
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function _setup_dovecot_local_user
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{
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[[ ${SMTP_ONLY} -eq 1 ]] && return 0
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[[ ${ACCOUNT_PROVISIONER} == 'FILE' ]] || return 0
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_log 'debug' 'Setting up Dovecot Local User'
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if [[ ! -f /tmp/docker-mailserver/postfix-accounts.cf ]]
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then
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_log 'trace' "No mail accounts to create - '/tmp/docker-mailserver/postfix-accounts.cf' is missing"
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fi
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function __wait_until_an_account_is_added_or_shutdown
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{
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local SLEEP_PERIOD='10'
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for (( COUNTER = 11 ; COUNTER >= 0 ; COUNTER-- ))
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do
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if [[ $(grep -cE '.+@.+\|' /tmp/docker-mailserver/postfix-accounts.cf 2>/dev/null || printf '%s' '0') -ge 1 ]]
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then
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return 0
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else
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_log 'warn' "You need at least one mail account to start Dovecot ($(( ( COUNTER + 1 ) * SLEEP_PERIOD ))s left for account creation before shutdown)"
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sleep "${SLEEP_PERIOD}"
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fi
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done
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_shutdown 'No accounts provided - Dovecot could not be started'
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}
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__wait_until_an_account_is_added_or_shutdown
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_create_accounts
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}
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function _setup_ldap
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{
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_log 'debug' 'Setting up LDAP'
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_log 'trace' 'Checking for custom configs'
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for i in 'users' 'groups' 'aliases' 'domains'
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do
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local FPATH="/tmp/docker-mailserver/ldap-${i}.cf"
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if [[ -f ${FPATH} ]]
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then
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cp "${FPATH}" "/etc/postfix/ldap-${i}.cf"
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fi
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done
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_log 'trace' 'Starting to override configs'
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local FILES=(
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/etc/postfix/ldap-users.cf
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/etc/postfix/ldap-groups.cf
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/etc/postfix/ldap-aliases.cf
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/etc/postfix/ldap-domains.cf
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/etc/postfix/ldap-senders.cf
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/etc/postfix/maps/sender_login_maps.ldap
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)
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for FILE in "${FILES[@]}"
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do
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[[ ${FILE} =~ ldap-user ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_USER}"
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[[ ${FILE} =~ ldap-group ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_GROUP}"
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[[ ${FILE} =~ ldap-aliases ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_ALIAS}"
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[[ ${FILE} =~ ldap-domains ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_DOMAIN}"
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[[ ${FILE} =~ ldap-senders ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_SENDERS}"
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_log debug "$(configomat.sh "LDAP_" "${FILE}" 2>&1)"
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done
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_log 'trace' "Configuring Dovecot LDAP"
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declare -A DOVECOT_LDAP_MAPPING
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DOVECOT_LDAP_MAPPING['DOVECOT_BASE']="${DOVECOT_BASE:="${LDAP_SEARCH_BASE}"}"
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DOVECOT_LDAP_MAPPING['DOVECOT_DN']="${DOVECOT_DN:="${LDAP_BIND_DN}"}"
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DOVECOT_LDAP_MAPPING['DOVECOT_DNPASS']="${DOVECOT_DNPASS:="${LDAP_BIND_PW}"}"
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DOVECOT_LDAP_MAPPING['DOVECOT_URIS']="${DOVECOT_URIS:="${DOVECOT_HOSTS:="${LDAP_SERVER_HOST}"}"}"
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# Add protocol to DOVECOT_URIS so that we can use dovecot's "uris" option:
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# https://doc.dovecot.org/configuration_manual/authentication/ldap/
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if [[ ${DOVECOT_LDAP_MAPPING["DOVECOT_URIS"]} != *'://'* ]]
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then
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DOVECOT_LDAP_MAPPING['DOVECOT_URIS']="ldap://${DOVECOT_LDAP_MAPPING["DOVECOT_URIS"]}"
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fi
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# Default DOVECOT_PASS_FILTER to the same value as DOVECOT_USER_FILTER
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DOVECOT_LDAP_MAPPING['DOVECOT_PASS_FILTER']="${DOVECOT_PASS_FILTER:="${DOVECOT_USER_FILTER}"}"
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for VAR in "${!DOVECOT_LDAP_MAPPING[@]}"
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do
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export "${VAR}=${DOVECOT_LDAP_MAPPING[${VAR}]}"
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done
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_log debug "$(configomat.sh "DOVECOT_" "/etc/dovecot/dovecot-ldap.conf.ext" 2>&1)"
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_log 'trace' 'Enabling Dovecot LDAP authentication'
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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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_log 'trace' "Configuring LDAP"
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if [[ -f /etc/postfix/ldap-users.cf ]]
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then
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postconf 'virtual_mailbox_maps = ldap:/etc/postfix/ldap-users.cf'
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else
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_log 'warn' "'/etc/postfix/ldap-users.cf' not found"
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fi
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if [[ -f /etc/postfix/ldap-domains.cf ]]
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then
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postconf 'virtual_mailbox_domains = /etc/postfix/vhost, ldap:/etc/postfix/ldap-domains.cf'
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else
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_log 'warn' "'/etc/postfix/ldap-domains.cf' not found"
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fi
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if [[ -f /etc/postfix/ldap-aliases.cf ]] && [[ -f /etc/postfix/ldap-groups.cf ]]
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then
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postconf 'virtual_alias_maps = ldap:/etc/postfix/ldap-aliases.cf, ldap:/etc/postfix/ldap-groups.cf'
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else
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_log 'warn' "'/etc/postfix/ldap-aliases.cf' and / or '/etc/postfix/ldap-groups.cf' not found"
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fi
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# shellcheck disable=SC2016
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sed -i 's|mydestination = \$myhostname, |mydestination = |' /etc/postfix/main.cf
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return 0
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}
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function _setup_oidc
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|
{
|
|
_shutdown 'OIDC user account provisioning is not yet implemented'
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}
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|
|
function _setup_postgrey
|
|
{
|
|
_log 'debug' 'Configuring Postgrey'
|
|
|
|
sedfile -i -E \
|
|
's|(^smtpd_recipient_restrictions =.*)|\1, check_policy_service inet:127.0.0.1:10023|' \
|
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/etc/postfix/main.cf
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sed -i -e \
|
|
"s|\"--inet=127.0.0.1:10023\"|\"--inet=127.0.0.1:10023 --delay=${POSTGREY_DELAY} --max-age=${POSTGREY_MAX_AGE} --auto-whitelist-clients=${POSTGREY_AUTO_WHITELIST_CLIENTS}\"|" \
|
|
/etc/default/postgrey
|
|
|
|
TEXT_FOUND=$(grep -c -i 'POSTGREY_TEXT' /etc/default/postgrey)
|
|
|
|
if [[ ${TEXT_FOUND} -eq 0 ]]
|
|
then
|
|
printf 'POSTGREY_TEXT=\"%s\"\n\n' "${POSTGREY_TEXT}" >>/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
|
|
|
|
if [[ -f /tmp/docker-mailserver/whitelist_recipients ]]
|
|
then
|
|
cp -f /tmp/docker-mailserver/whitelist_recipients /etc/postgrey/whitelist_recipients
|
|
fi
|
|
}
|
|
|
|
function _setup_postfix_postscreen
|
|
{
|
|
_log 'debug' '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 = ${POSTSCREEN_ACTION}|" /etc/postfix/main.cf
|
|
}
|
|
|
|
function _setup_postfix_sizelimits
|
|
{
|
|
_log 'trace' "Configuring Postfix message size limit to '${POSTFIX_MESSAGE_SIZE_LIMIT}'"
|
|
postconf "message_size_limit = ${POSTFIX_MESSAGE_SIZE_LIMIT}"
|
|
|
|
_log 'trace' "Configuring Postfix mailbox size limit to '${POSTFIX_MAILBOX_SIZE_LIMIT}'"
|
|
postconf "mailbox_size_limit = ${POSTFIX_MAILBOX_SIZE_LIMIT}"
|
|
|
|
_log 'trace' "Configuring Postfix virtual mailbox size limit to '${POSTFIX_MAILBOX_SIZE_LIMIT}'"
|
|
postconf "virtual_mailbox_limit = ${POSTFIX_MAILBOX_SIZE_LIMIT}"
|
|
}
|
|
|
|
function _setup_clamav_sizelimit
|
|
{
|
|
_log 'trace' "Setting ClamAV message scan size limit to '${CLAMAV_MESSAGE_SIZE_LIMIT}'"
|
|
sedfile -i "s/^MaxFileSize.*/MaxFileSize ${CLAMAV_MESSAGE_SIZE_LIMIT}/" /etc/clamav/clamd.conf
|
|
}
|
|
|
|
function _setup_postfix_smtputf8
|
|
{
|
|
_log 'trace' "Disabling Postfix's smtputf8 support"
|
|
postconf 'smtputf8_enable = no'
|
|
}
|
|
|
|
function _setup_spoof_protection
|
|
{
|
|
_log 'trace' 'Configuring spoof protection'
|
|
sed -i \
|
|
's|smtpd_sender_restrictions =|smtpd_sender_restrictions = reject_authenticated_sender_login_mismatch,|' \
|
|
/etc/postfix/main.cf
|
|
|
|
if [[ ${ACCOUNT_PROVISIONER} == 'LDAP' ]]
|
|
then
|
|
if [[ -z ${LDAP_QUERY_FILTER_SENDERS} ]]
|
|
then
|
|
postconf 'smtpd_sender_login_maps = ldap:/etc/postfix/ldap-users.cf ldap:/etc/postfix/ldap-aliases.cf ldap:/etc/postfix/ldap-groups.cf'
|
|
else
|
|
postconf 'smtpd_sender_login_maps = ldap:/etc/postfix/ldap-senders.cf'
|
|
fi
|
|
else
|
|
if [[ -f /etc/postfix/regexp ]]
|
|
then
|
|
postconf 'smtpd_sender_login_maps = unionmap:{ texthash:/etc/postfix/virtual, hash:/etc/aliases, pcre:/etc/postfix/maps/sender_login_maps.pcre, pcre:/etc/postfix/regexp }'
|
|
else
|
|
postconf 'smtpd_sender_login_maps = texthash:/etc/postfix/virtual, hash:/etc/aliases, pcre:/etc/postfix/maps/sender_login_maps.pcre'
|
|
fi
|
|
fi
|
|
}
|
|
|
|
function _setup_postfix_access_control
|
|
{
|
|
_log 'trace' 'Configuring user access'
|
|
|
|
if [[ -f /tmp/docker-mailserver/postfix-send-access.cf ]]
|
|
then
|
|
sed -i 's|smtpd_sender_restrictions =|smtpd_sender_restrictions = check_sender_access texthash:/tmp/docker-mailserver/postfix-send-access.cf,|' /etc/postfix/main.cf
|
|
fi
|
|
|
|
if [[ -f /tmp/docker-mailserver/postfix-receive-access.cf ]]
|
|
then
|
|
sed -i 's|smtpd_recipient_restrictions =|smtpd_recipient_restrictions = check_recipient_access texthash:/tmp/docker-mailserver/postfix-receive-access.cf,|' /etc/postfix/main.cf
|
|
fi
|
|
}
|
|
|
|
function _setup_postfix_sasl
|
|
{
|
|
if [[ ${ENABLE_SASLAUTHD} -eq 1 ]] && [[ ! -f /etc/postfix/sasl/smtpd.conf ]]
|
|
then
|
|
cat >/etc/postfix/sasl/smtpd.conf << EOF
|
|
pwcheck_method: saslauthd
|
|
mech_list: plain login
|
|
EOF
|
|
fi
|
|
|
|
if [[ ${ENABLE_SASLAUTHD} -eq 0 ]] && [[ ${SMTP_ONLY} -eq 1 ]]
|
|
then
|
|
sed -i -E \
|
|
's|^smtpd_sasl_auth_enable =.*|smtpd_sasl_auth_enable = no|g' \
|
|
/etc/postfix/main.cf
|
|
sed -i -E \
|
|
's|^ -o smtpd_sasl_auth_enable=.*| -o smtpd_sasl_auth_enable=no|g' \
|
|
/etc/postfix/master.cf
|
|
fi
|
|
}
|
|
|
|
function _setup_saslauthd
|
|
{
|
|
_log 'debug' 'Setting up SASLAUTHD'
|
|
|
|
if [[ ! -f /etc/saslauthd.conf ]]
|
|
then
|
|
_log 'trace' 'Creating /etc/saslauthd.conf'
|
|
cat > /etc/saslauthd.conf << EOF
|
|
ldap_servers: ${SASLAUTHD_LDAP_SERVER}
|
|
|
|
ldap_auth_method: ${SASLAUTHD_LDAP_AUTH_METHOD}
|
|
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_start_tls: ${SASLAUTHD_LDAP_START_TLS}
|
|
ldap_tls_check_peer: ${SASLAUTHD_LDAP_TLS_CHECK_PEER}
|
|
|
|
${SASLAUTHD_LDAP_TLS_CACERT_FILE}
|
|
${SASLAUTHD_LDAP_TLS_CACERT_DIR}
|
|
${SASLAUTHD_LDAP_PASSWORD_ATTR}
|
|
${SASLAUTHD_LDAP_MECH}
|
|
|
|
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
|
|
{
|
|
_log 'debug' 'Setting up Postfix aliases'
|
|
_create_aliases
|
|
}
|
|
|
|
function _setup_SRS
|
|
{
|
|
_log 'debug' 'Setting up SRS'
|
|
|
|
postconf 'sender_canonical_maps = tcp:localhost:10001'
|
|
postconf "sender_canonical_classes = ${SRS_SENDER_CLASSES}"
|
|
postconf 'recipient_canonical_maps = tcp:localhost:10002'
|
|
postconf 'recipient_canonical_classes = envelope_recipient,header_recipient'
|
|
}
|
|
|
|
function _setup_dkim
|
|
{
|
|
_log 'debug' 'Setting up DKIM'
|
|
|
|
mkdir -p /etc/opendkim && touch /etc/opendkim/SigningTable
|
|
|
|
# check if any keys are available
|
|
if [[ -e "/tmp/docker-mailserver/opendkim/KeyTable" ]]
|
|
then
|
|
cp -a /tmp/docker-mailserver/opendkim/* /etc/opendkim/
|
|
|
|
_log 'trace' "DKIM keys added for: $(ls /etc/opendkim/keys/)"
|
|
_log 'trace' "Changing permissions on '/etc/opendkim'"
|
|
|
|
chown -R opendkim:opendkim /etc/opendkim/
|
|
chmod -R 0700 /etc/opendkim/keys/
|
|
else
|
|
_log 'debug' 'No DKIM key(s) provided - check the documentation on how to get your keys'
|
|
[[ ! -f /etc/opendkim/KeyTable ]] && touch /etc/opendkim/KeyTable
|
|
fi
|
|
|
|
# setup nameservers parameter from /etc/resolv.conf if not defined
|
|
if ! grep '^Nameservers' /etc/opendkim.conf
|
|
then
|
|
echo "Nameservers $(grep '^nameserver' /etc/resolv.conf | awk -F " " '{print $2}' | paste -sd ',' -)" >>/etc/opendkim.conf
|
|
|
|
_log 'trace' "Nameservers added to '/etc/opendkim.conf'"
|
|
fi
|
|
}
|
|
|
|
function _setup_postfix_vhost
|
|
{
|
|
_log 'debug' 'Setting up Postfix vhost'
|
|
_create_postfix_vhost
|
|
}
|
|
|
|
function _setup_postfix_inet_protocols
|
|
{
|
|
_log 'trace' 'Setting up POSTFIX_INET_PROTOCOLS option'
|
|
postconf "inet_protocols = ${POSTFIX_INET_PROTOCOLS}"
|
|
}
|
|
|
|
function _setup_dovecot_inet_protocols
|
|
{
|
|
local PROTOCOL
|
|
|
|
_log 'trace' 'Setting up DOVECOT_INET_PROTOCOLS option'
|
|
|
|
# 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}"
|
|
fi
|
|
|
|
sedfile -i "s|^#listen =.*|listen = ${PROTOCOL}|g" /etc/dovecot/dovecot.conf
|
|
}
|
|
|
|
function _setup_docker_permit
|
|
{
|
|
_log 'debug' 'Setting up PERMIT_DOCKER option'
|
|
|
|
local CONTAINER_IP CONTAINER_NETWORK
|
|
|
|
unset CONTAINER_NETWORKS
|
|
declare -a CONTAINER_NETWORKS
|
|
|
|
CONTAINER_IP=$(ip addr show "${NETWORK_INTERFACE}" | \
|
|
grep 'inet ' | sed 's|[^0-9\.\/]*||g' | cut -d '/' -f 1)
|
|
CONTAINER_NETWORK=$(echo "${CONTAINER_IP}" | cut -d '.' -f1-2).0.0
|
|
|
|
if [[ -z ${CONTAINER_IP} ]]
|
|
then
|
|
_log 'error' 'Detecting the container IP address failed'
|
|
dms_panic__misconfigured 'NETWORK_INTERFACE' 'Network Setup [docker_permit]'
|
|
fi
|
|
|
|
while read -r IP
|
|
do
|
|
CONTAINER_NETWORKS+=("${IP}")
|
|
done < <(ip -o -4 addr show type veth | grep -E -o '[0-9\.]+/[0-9]+')
|
|
|
|
case "${PERMIT_DOCKER}" in
|
|
( 'none' )
|
|
_log 'trace' "Clearing Postfix's 'mynetworks'"
|
|
postconf "mynetworks ="
|
|
;;
|
|
|
|
( 'connected-networks' )
|
|
for NETWORK in "${CONTAINER_NETWORKS[@]}"
|
|
do
|
|
NETWORK=$(_sanitize_ipv4_to_subnet_cidr "${NETWORK}")
|
|
_log 'trace' "Adding Docker network '${NETWORK}' to Postfix's 'mynetworks'"
|
|
postconf "$(postconf | grep '^mynetworks =') ${NETWORK}"
|
|
echo "${NETWORK}" >> /etc/opendmarc/ignore.hosts
|
|
echo "${NETWORK}" >> /etc/opendkim/TrustedHosts
|
|
done
|
|
;;
|
|
|
|
( 'container' )
|
|
_log 'trace' "Adding container IP address to Postfix's 'mynetworks'"
|
|
postconf "$(postconf | grep '^mynetworks =') ${CONTAINER_IP}/32"
|
|
echo "${CONTAINER_IP}/32" >> /etc/opendmarc/ignore.hosts
|
|
echo "${CONTAINER_IP}/32" >> /etc/opendkim/TrustedHosts
|
|
;;
|
|
|
|
( 'host' )
|
|
_log 'trace' "Adding '${CONTAINER_NETWORK}/16' to Postfix's 'mynetworks'"
|
|
postconf "$(postconf | grep '^mynetworks =') ${CONTAINER_NETWORK}/16"
|
|
echo "${CONTAINER_NETWORK}/16" >> /etc/opendmarc/ignore.hosts
|
|
echo "${CONTAINER_NETWORK}/16" >> /etc/opendkim/TrustedHosts
|
|
;;
|
|
|
|
( 'network' )
|
|
_log 'trace' "Adding Docker network to Postfix's 'mynetworks'"
|
|
postconf "$(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
|
|
;;
|
|
|
|
( * )
|
|
_log 'warn' "Invalid value for PERMIT_DOCKER: '${PERMIT_DOCKER}'"
|
|
_log 'warn' "Clearing Postfix's 'mynetworks'"
|
|
postconf "mynetworks ="
|
|
;;
|
|
|
|
esac
|
|
}
|
|
|
|
# Requires ENABLE_POSTFIX_VIRTUAL_TRANSPORT=1
|
|
function _setup_postfix_virtual_transport
|
|
{
|
|
_log 'trace' 'Setting up Postfix virtual transport'
|
|
|
|
if [[ -z ${POSTFIX_DAGENT} ]]
|
|
then
|
|
dms_panic__no_env 'POSTFIX_DAGENT' 'Postfix Setup [virtual_transport]'
|
|
return 1
|
|
fi
|
|
|
|
postconf "virtual_transport = ${POSTFIX_DAGENT}"
|
|
}
|
|
|
|
function _setup_postfix_override_configuration
|
|
{
|
|
_log 'debug' 'Overriding / adjusting Postfix configuration with user-supplied values'
|
|
|
|
if [[ -f /tmp/docker-mailserver/postfix-main.cf ]]
|
|
then
|
|
cat /tmp/docker-mailserver/postfix-main.cf >>/etc/postfix/main.cf
|
|
# do not directly output to 'main.cf' as this causes a read-write-conflict
|
|
postconf -n >/tmp/postfix-main-new.cf 2>/dev/null
|
|
mv /tmp/postfix-main-new.cf /etc/postfix/main.cf
|
|
_log 'trace' "Adjusted '/etc/postfix/main.cf' according to '/tmp/docker-mailserver/postfix-main.cf'"
|
|
else
|
|
_log 'trace' "No extra Postfix settings loaded because optional '/tmp/docker-mailserver/postfix-main.cf' was not provided"
|
|
fi
|
|
|
|
if [[ -f /tmp/docker-mailserver/postfix-master.cf ]]
|
|
then
|
|
while read -r LINE
|
|
do
|
|
if [[ ${LINE} =~ ^[0-9a-z] ]]
|
|
then
|
|
postconf -P "${LINE}"
|
|
fi
|
|
done < /tmp/docker-mailserver/postfix-master.cf
|
|
_log 'trace' "Adjusted '/etc/postfix/master.cf' according to '/tmp/docker-mailserver/postfix-master.cf'"
|
|
else
|
|
_log 'trace' "No extra Postfix settings loaded because optional '/tmp/docker-mailserver/postfix-master.cf' was not provided"
|
|
fi
|
|
}
|
|
|
|
function _setup_postfix_relay_hosts
|
|
{
|
|
_setup_relayhost
|
|
}
|
|
|
|
function _setup_postfix_dhparam
|
|
{
|
|
_setup_dhparam 'Postfix' '/etc/postfix/dhparams.pem'
|
|
}
|
|
|
|
function _setup_dovecot_dhparam
|
|
{
|
|
_setup_dhparam 'Dovecot' '/etc/dovecot/dh.pem'
|
|
}
|
|
|
|
function _setup_dhparam
|
|
{
|
|
local DH_SERVICE=$1
|
|
local DH_DEST=$2
|
|
local DH_CUSTOM='/tmp/docker-mailserver/dhparams.pem'
|
|
|
|
_log 'debug' "Setting up ${DH_SERVICE} dhparam"
|
|
|
|
if [[ -f ${DH_CUSTOM} ]]
|
|
then # use custom supplied dh params (assumes they're probably insecure)
|
|
_log 'trace' "${DH_SERVICE} will use custom provided DH paramters"
|
|
_log 'warn' "Using self-generated dhparams is considered insecure - unless you know what you are doing, please remove '${DH_CUSTOM}'"
|
|
|
|
cp -f "${DH_CUSTOM}" "${DH_DEST}"
|
|
else # use official standardized dh params (provided via Dockerfile)
|
|
_log 'trace' "${DH_SERVICE} will use official standardized DH parameters (ffdhe4096)."
|
|
fi
|
|
}
|
|
|
|
function _setup_security_stack
|
|
{
|
|
_log 'debug' 'Setting up Security Stack'
|
|
|
|
# recreate auto-generated file
|
|
local 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 [[ ${ENABLE_SPAMASSASSIN} -eq 0 ]]
|
|
then
|
|
_log 'debug' 'SpamAssassin is disabled'
|
|
echo "@bypass_spam_checks_maps = (1);" >>"${DMS_AMAVIS_FILE}"
|
|
elif [[ ${ENABLE_SPAMASSASSIN} -eq 1 ]]
|
|
then
|
|
_log 'debug' 'Enabling and configuring SpamAssassin'
|
|
|
|
# shellcheck disable=SC2016
|
|
sed -i -r 's|^\$sa_tag_level_deflt (.*);|\$sa_tag_level_deflt = '"${SA_TAG}"';|g' /etc/amavis/conf.d/20-debian_defaults
|
|
|
|
# shellcheck disable=SC2016
|
|
sed -i -r 's|^\$sa_tag2_level_deflt (.*);|\$sa_tag2_level_deflt = '"${SA_TAG2}"';|g' /etc/amavis/conf.d/20-debian_defaults
|
|
|
|
# shellcheck disable=SC2016
|
|
sed -i -r 's|^\$sa_kill_level_deflt (.*);|\$sa_kill_level_deflt = '"${SA_KILL}"';|g' /etc/amavis/conf.d/20-debian_defaults
|
|
|
|
if [[ ${SA_SPAM_SUBJECT} == 'undef' ]]
|
|
then
|
|
# shellcheck disable=SC2016
|
|
sed -i -r 's|^\$sa_spam_subject_tag (.*);|\$sa_spam_subject_tag = undef;|g' /etc/amavis/conf.d/20-debian_defaults
|
|
else
|
|
# shellcheck disable=SC2016
|
|
sed -i -r 's|^\$sa_spam_subject_tag (.*);|\$sa_spam_subject_tag = '"'${SA_SPAM_SUBJECT}'"';|g' /etc/amavis/conf.d/20-debian_defaults
|
|
fi
|
|
|
|
# activate short circuits when SA BAYES is certain it has spam or ham.
|
|
if [[ ${SA_SHORTCIRCUIT_BAYES_SPAM} -eq 1 ]]
|
|
then
|
|
# automatically activate the Shortcircuit Plugin
|
|
sed -i -r 's|^# loadplugin Mail::SpamAssassin::Plugin::Shortcircuit|loadplugin Mail::SpamAssassin::Plugin::Shortcircuit|g' /etc/spamassassin/v320.pre
|
|
sed -i -r 's|^# shortcircuit BAYES_99|shortcircuit BAYES_99|g' /etc/spamassassin/local.cf
|
|
fi
|
|
|
|
if [[ ${SA_SHORTCIRCUIT_BAYES_HAM} -eq 1 ]]
|
|
then
|
|
# automatically activate the Shortcircuit Plugin
|
|
sed -i -r 's|^# loadplugin Mail::SpamAssassin::Plugin::Shortcircuit|loadplugin Mail::SpamAssassin::Plugin::Shortcircuit|g' /etc/spamassassin/v320.pre
|
|
sed -i -r 's|^# shortcircuit BAYES_00|shortcircuit BAYES_00|g' /etc/spamassassin/local.cf
|
|
fi
|
|
|
|
if [[ -e /tmp/docker-mailserver/spamassassin-rules.cf ]]
|
|
then
|
|
cp /tmp/docker-mailserver/spamassassin-rules.cf /etc/spamassassin/
|
|
fi
|
|
|
|
if [[ ${SPAMASSASSIN_SPAM_TO_INBOX} -eq 1 ]]
|
|
then
|
|
_log 'trace' 'Configuring Spamassassin/Amavis to send SPAM to inbox'
|
|
|
|
sed -i "s|\$final_spam_destiny.*=.*$|\$final_spam_destiny = D_PASS;|g" /etc/amavis/conf.d/49-docker-mailserver
|
|
sed -i "s|\$final_bad_header_destiny.*=.*$|\$final_bad_header_destiny = D_PASS;|g" /etc/amavis/conf.d/49-docker-mailserver
|
|
else
|
|
_log 'trace' 'Configuring Spamassassin/Amavis to bounce SPAM'
|
|
|
|
sed -i "s|\$final_spam_destiny.*=.*$|\$final_spam_destiny = D_BOUNCE;|g" /etc/amavis/conf.d/49-docker-mailserver
|
|
sed -i "s|\$final_bad_header_destiny.*=.*$|\$final_bad_header_destiny = D_BOUNCE;|g" /etc/amavis/conf.d/49-docker-mailserver
|
|
fi
|
|
|
|
if [[ ${ENABLE_SPAMASSASSIN_KAM} -eq 1 ]]
|
|
then
|
|
_log 'trace' 'Configuring Spamassassin KAM'
|
|
local SPAMASSASSIN_KAM_CRON_FILE=/etc/cron.daily/spamassassin_kam
|
|
|
|
sa-update --import /etc/spamassassin/kam/kam.sa-channels.mcgrail.com.key
|
|
|
|
cat >"${SPAMASSASSIN_KAM_CRON_FILE}" <<"EOM"
|
|
#!/bin/bash
|
|
|
|
RESULT=$(sa-update --gpgkey 24C063D8 --channel kam.sa-channels.mcgrail.com 2>&1)
|
|
EXIT_CODE=${?}
|
|
|
|
# see https://spamassassin.apache.org/full/3.1.x/doc/sa-update.html#exit_codes
|
|
if [[ ${EXIT_CODE} -ge 4 ]]
|
|
then
|
|
echo -e "Updating SpamAssassin KAM failed:\n${RESULT}\n" >&2
|
|
exit 1
|
|
fi
|
|
|
|
exit 0
|
|
|
|
EOM
|
|
|
|
chmod +x "${SPAMASSASSIN_KAM_CRON_FILE}"
|
|
fi
|
|
fi
|
|
|
|
# ClamAV
|
|
if [[ ${ENABLE_CLAMAV} -eq 0 ]]
|
|
then
|
|
_log 'debug' 'ClamAV is disabled'
|
|
echo '@bypass_virus_checks_maps = (1);' >>"${DMS_AMAVIS_FILE}"
|
|
elif [[ ${ENABLE_CLAMAV} -eq 1 ]]
|
|
then
|
|
_log 'debug' 'Enabling ClamAV'
|
|
fi
|
|
|
|
echo '1; # ensure a defined return' >>"${DMS_AMAVIS_FILE}"
|
|
chmod 444 "${DMS_AMAVIS_FILE}"
|
|
|
|
# Fail2ban
|
|
if [[ ${ENABLE_FAIL2BAN} -eq 1 ]]
|
|
then
|
|
_log 'debug' 'Enabling Fail2Ban'
|
|
|
|
if [[ -e /tmp/docker-mailserver/fail2ban-fail2ban.cf ]]
|
|
then
|
|
cp /tmp/docker-mailserver/fail2ban-fail2ban.cf /etc/fail2ban/fail2ban.local
|
|
fi
|
|
|
|
if [[ -e /tmp/docker-mailserver/fail2ban-jail.cf ]]
|
|
then
|
|
cp /tmp/docker-mailserver/fail2ban-jail.cf /etc/fail2ban/jail.d/user-jail.local
|
|
fi
|
|
else
|
|
# disable logrotate config for fail2ban if not enabled
|
|
rm -f /etc/logrotate.d/fail2ban
|
|
fi
|
|
|
|
# fix cron.daily for spamassassin
|
|
sed -i \
|
|
's|invoke-rc.d spamassassin reload|/etc/init\.d/spamassassin reload|g' \
|
|
/etc/cron.daily/spamassassin
|
|
|
|
# Amavis
|
|
if [[ ${ENABLE_AMAVIS} -eq 1 ]]
|
|
then
|
|
_log 'debug' 'Enabling Amavis'
|
|
if [[ -f /tmp/docker-mailserver/amavis.cf ]]
|
|
then
|
|
cp /tmp/docker-mailserver/amavis.cf /etc/amavis/conf.d/50-user
|
|
fi
|
|
|
|
sed -i -E \
|
|
"s|(log_level).*|\1 = ${AMAVIS_LOGLEVEL};|g" \
|
|
/etc/amavis/conf.d/49-docker-mailserver
|
|
fi
|
|
}
|
|
|
|
function _setup_logrotate
|
|
{
|
|
_log 'debug' 'Setting up logrotate'
|
|
|
|
LOGROTATE='/var/log/mail/mail.log\n{\n compress\n copytruncate\n delaycompress\n'
|
|
|
|
case "${LOGROTATE_INTERVAL}" in
|
|
( 'daily' )
|
|
_log 'trace' 'Setting postfix logrotate interval to daily'
|
|
LOGROTATE="${LOGROTATE} rotate 4\n daily\n"
|
|
;;
|
|
|
|
( 'weekly' )
|
|
_log 'trace' 'Setting postfix logrotate interval to weekly'
|
|
LOGROTATE="${LOGROTATE} rotate 4\n weekly\n"
|
|
;;
|
|
|
|
( 'monthly' )
|
|
_log 'trace' 'Setting postfix logrotate interval to monthly'
|
|
LOGROTATE="${LOGROTATE} rotate 4\n monthly\n"
|
|
;;
|
|
|
|
( * )
|
|
_log 'warn' 'LOGROTATE_INTERVAL not found in _setup_logrotate'
|
|
;;
|
|
|
|
esac
|
|
|
|
echo -e "${LOGROTATE}}" >/etc/logrotate.d/maillog
|
|
}
|
|
|
|
function _setup_mail_summary
|
|
{
|
|
local ENABLED_MESSAGE
|
|
ENABLED_MESSAGE="Enabling Postfix log summary reports with recipient '${PFLOGSUMM_RECIPIENT}'"
|
|
|
|
case "${PFLOGSUMM_TRIGGER}" in
|
|
( 'daily_cron' )
|
|
_log 'debug' "${ENABLED_MESSAGE}"
|
|
_log 'trace' 'Creating daily cron job for pflogsumm report'
|
|
|
|
cat >/etc/cron.daily/postfix-summary << EOM
|
|
#!/bin/bash
|
|
|
|
/usr/local/bin/report-pflogsumm-yesterday ${HOSTNAME} ${PFLOGSUMM_RECIPIENT} ${PFLOGSUMM_SENDER}
|
|
EOM
|
|
|
|
chmod +x /etc/cron.daily/postfix-summary
|
|
;;
|
|
|
|
( 'logrotate' )
|
|
_log 'debug' "${ENABLED_MESSAGE}"
|
|
_log 'trace' 'Add postrotate action for pflogsumm report'
|
|
sed -i \
|
|
"s|}| postrotate\n /usr/local/bin/postfix-summary ${HOSTNAME} ${PFLOGSUMM_RECIPIENT} ${PFLOGSUMM_SENDER}\n endscript\n}\n|" \
|
|
/etc/logrotate.d/maillog
|
|
;;
|
|
|
|
( 'none' )
|
|
_log 'debug' 'Postfix log summary reports disabled'
|
|
;;
|
|
|
|
( * )
|
|
_log 'warn' "Invalid value for PFLOGSUMM_TRIGGER: '${PFLOGSUMM_TRIGGER}'"
|
|
;;
|
|
|
|
esac
|
|
}
|
|
|
|
function _setup_logwatch
|
|
{
|
|
echo 'LogFile = /var/log/mail/freshclam.log' >>/etc/logwatch/conf/logfiles/clam-update.conf
|
|
echo "MailFrom = ${LOGWATCH_SENDER}" >>/etc/logwatch/conf/logwatch.conf
|
|
|
|
case "${LOGWATCH_INTERVAL}" in
|
|
( 'daily' | 'weekly' )
|
|
_log 'debug' "Enabling logwatch reports with recipient '${LOGWATCH_RECIPIENT}'"
|
|
_log 'trace' "Creating ${LOGWATCH_INTERVAL} cron job for logwatch reports"
|
|
|
|
local LOGWATCH_FILE INTERVAL
|
|
|
|
LOGWATCH_FILE="/etc/cron.${LOGWATCH_INTERVAL}/logwatch"
|
|
INTERVAL='--range Yesterday'
|
|
|
|
if [[ ${LOGWATCH_INTERVAL} == 'weekly' ]]
|
|
then
|
|
INTERVAL="--range 'between -7 days and -1 days'"
|
|
fi
|
|
|
|
cat >"${LOGWATCH_FILE}" << EOM
|
|
#!/bin/bash
|
|
|
|
/usr/sbin/logwatch ${INTERVAL} --hostname ${HOSTNAME} --mailto ${LOGWATCH_RECIPIENT}
|
|
EOM
|
|
chmod 744 "${LOGWATCH_FILE}"
|
|
;;
|
|
|
|
( 'none' )
|
|
_log 'debug' 'Logwatch reports disabled.'
|
|
;;
|
|
|
|
( * )
|
|
_log 'warn' "Invalid value for LOGWATCH_INTERVAL: '${LOGWATCH_INTERVAL}'"
|
|
;;
|
|
|
|
esac
|
|
}
|
|
|
|
function _setup_user_patches
|
|
{
|
|
local USER_PATCHES='/tmp/docker-mailserver/user-patches.sh'
|
|
|
|
if [[ -f ${USER_PATCHES} ]]
|
|
then
|
|
_log 'debug' 'Applying user patches'
|
|
/bin/bash "${USER_PATCHES}"
|
|
else
|
|
_log 'trace' "No optional '${USER_PATCHES}' provided"
|
|
fi
|
|
}
|
|
|
|
function _setup_fail2ban
|
|
{
|
|
_log 'debug' 'Setting up Fail2Ban'
|
|
|
|
if [[ ${FAIL2BAN_BLOCKTYPE} != 'reject' ]]
|
|
then
|
|
echo -e '[Init]\nblocktype = drop' >/etc/fail2ban/action.d/nftables-common.local
|
|
fi
|
|
|
|
echo '[Definition]' >/etc/fail2ban/filter.d/custom.conf
|
|
}
|
|
|
|
function _setup_dnsbl_disable
|
|
{
|
|
_log 'debug' 'Disabling postfix DNS block list (zen.spamhaus.org)'
|
|
|
|
sedfile -i \
|
|
'/^smtpd_recipient_restrictions = / s/, reject_rbl_client zen.spamhaus.org=127.0.0.\[2..11\]//' \
|
|
/etc/postfix/main.cf
|
|
|
|
_log 'debug' 'Disabling postscreen DNS block lists'
|
|
postconf 'postscreen_dnsbl_action = ignore'
|
|
postconf 'postscreen_dnsbl_sites = '
|
|
}
|
|
|
|
function _setup_fetchmail
|
|
{
|
|
_log 'trace' 'Preparing Fetchmail configuration'
|
|
|
|
local CONFIGURATION FETCHMAILRC
|
|
|
|
CONFIGURATION='/tmp/docker-mailserver/fetchmail.cf'
|
|
FETCHMAILRC='/etc/fetchmailrc'
|
|
|
|
if [[ -f ${CONFIGURATION} ]]
|
|
then
|
|
cat /etc/fetchmailrc_general "${CONFIGURATION}" >"${FETCHMAILRC}"
|
|
else
|
|
cat /etc/fetchmailrc_general >"${FETCHMAILRC}"
|
|
fi
|
|
|
|
chmod 700 "${FETCHMAILRC}"
|
|
chown fetchmail:root "${FETCHMAILRC}"
|
|
}
|
|
|
|
function _setup_fetchmail_parallel
|
|
{
|
|
_log 'trace' 'Setting up Fetchmail parallel'
|
|
mkdir /etc/fetchmailrc.d/
|
|
|
|
# Split the content of /etc/fetchmailrc into
|
|
# smaller fetchmailrc files per server [poll] entries. Each
|
|
# separate fetchmailrc file is stored in /etc/fetchmailrc.d
|
|
#
|
|
# The sole purpose for this is to work around what is known
|
|
# as the Fetchmail IMAP idle issue.
|
|
function _fetchmailrc_split
|
|
{
|
|
local FETCHMAILRC='/etc/fetchmailrc'
|
|
local FETCHMAILRCD='/etc/fetchmailrc.d'
|
|
local DEFAULT_FILE="${FETCHMAILRCD}/defaults"
|
|
|
|
if [[ ! -r ${FETCHMAILRC} ]]
|
|
then
|
|
_log 'warn' "File '${FETCHMAILRC}' not found"
|
|
return 1
|
|
fi
|
|
|
|
if [[ ! -d ${FETCHMAILRCD} ]]
|
|
then
|
|
if ! mkdir "${FETCHMAILRCD}"
|
|
then
|
|
_log 'warn' "Unable to create folder '${FETCHMAILRCD}'"
|
|
return 1
|
|
fi
|
|
fi
|
|
|
|
local COUNTER=0 SERVER=0
|
|
while read -r LINE
|
|
do
|
|
if [[ ${LINE} =~ poll ]]
|
|
then
|
|
# If we read "poll" then we reached a new server definition
|
|
# We need to create a new file with fetchmail defaults from
|
|
# /etc/fetcmailrc
|
|
COUNTER=$(( COUNTER + 1 ))
|
|
SERVER=1
|
|
cat "${DEFAULT_FILE}" >"${FETCHMAILRCD}/fetchmail-${COUNTER}.rc"
|
|
echo "${LINE}" >>"${FETCHMAILRCD}/fetchmail-${COUNTER}.rc"
|
|
elif [[ ${SERVER} -eq 0 ]]
|
|
then
|
|
# We have not yet found "poll". Let's assume we are still reading
|
|
# the default settings from /etc/fetchmailrc file
|
|
echo "${LINE}" >>"${DEFAULT_FILE}"
|
|
else
|
|
# Just the server settings that need to be added to the specific rc.d file
|
|
echo "${LINE}" >>"${FETCHMAILRCD}/fetchmail-${COUNTER}.rc"
|
|
fi
|
|
done < <(_get_valid_lines_from_file "${FETCHMAILRC}")
|
|
|
|
rm "${DEFAULT_FILE}"
|
|
}
|
|
|
|
_fetchmailrc_split
|
|
|
|
local COUNTER=0
|
|
for RC in /etc/fetchmailrc.d/fetchmail-*.rc
|
|
do
|
|
COUNTER=$(( COUNTER + 1 ))
|
|
cat >"/etc/supervisor/conf.d/fetchmail-${COUNTER}.conf" << EOF
|
|
[program:fetchmail-${COUNTER}]
|
|
startsecs=0
|
|
autostart=false
|
|
autorestart=true
|
|
stdout_logfile=/var/log/supervisor/%(program_name)s.log
|
|
stderr_logfile=/var/log/supervisor/%(program_name)s.log
|
|
user=fetchmail
|
|
command=/usr/bin/fetchmail -f ${RC} -v --nodetach --daemon %(ENV_FETCHMAIL_POLL)s -i /var/lib/fetchmail/.fetchmail-UIDL-cache --pidfile /var/run/fetchmail/%(program_name)s.pid
|
|
EOF
|
|
chmod 700 "${RC}"
|
|
chown fetchmail:root "${RC}"
|
|
done
|
|
|
|
supervisorctl reread
|
|
supervisorctl update
|
|
}
|
|
|
|
function _setup_timezone
|
|
{
|
|
[[ -n ${TZ} ]] || return 0
|
|
_log 'debug' "Setting timezone to '${TZ}'"
|
|
|
|
local ZONEINFO_FILE="/usr/share/zoneinfo/${TZ}"
|
|
|
|
if [[ ! -e ${ZONEINFO_FILE} ]]
|
|
then
|
|
_log 'warn' "Cannot find timezone '${TZ}'"
|
|
return 1
|
|
fi
|
|
|
|
if ln -fs "${ZONEINFO_FILE}" /etc/localtime \
|
|
&& dpkg-reconfigure -f noninteractive tzdata &>/dev/null
|
|
then
|
|
_log 'trace' "Set time zone to '${TZ}'"
|
|
else
|
|
_log 'warn' "Setting timezone to '${TZ}' failed"
|
|
return 1
|
|
fi
|
|
}
|