97 lines
3.0 KiB
Bash
Executable File
97 lines
3.0 KiB
Bash
Executable File
#! /bin/bash
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touch /tmp/vhost.tmp
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# if no keysize is provided, default to 4096
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KEYSIZE=${1:-4096}
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# optional domain names
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DOMAINS=${2:-}
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if [[ -z ${DOMAINS} ]]
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then
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# getting domains FROM mail accounts
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if [[ -f /tmp/docker-mailserver/postfix-accounts.cf ]]
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then
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# shellcheck disable=SC2034
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while IFS=$'|' read -r LOGIN PASS
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do
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DOMAIN=$(echo "${LOGIN}" | cut -d @ -f2)
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echo "${DOMAIN}" >>/tmp/vhost.tmp
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done < <(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-accounts.cf || true)
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fi
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# getting domains FROM mail aliases
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if [[ -f /tmp/docker-mailserver/postfix-virtual.cf ]]
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then
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# shellcheck disable=SC2034
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while read -r FROM TO
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do
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UNAME=$(echo "${FROM}" | cut -d @ -f1)
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DOMAIN=$(echo "${FROM}" | cut -d @ -f2)
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[[ ${UNAME} != "${DOMAIN}" ]] && echo "${DOMAIN}" >>/tmp/vhost.tmp
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done < <(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-virtual.cf || true)
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fi
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else
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tr ',' '\n' <<< "${DOMAINS}" > /tmp/vhost.tmp
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fi
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# keeping unique entries
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if [[ -f /tmp/vhost.tmp ]]
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then
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sort < /tmp/vhost.tmp | uniq >/tmp/vhost && rm /tmp/vhost.tmp
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fi
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# exit if no entries found
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if [[ ! -f /tmp/vhost ]]
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then
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echo "No entries found, no keys to make"
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exit 0
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fi
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while read -r DOMAINNAME
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do
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mkdir -p "/tmp/docker-mailserver/opendkim/keys/${DOMAINNAME}"
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if [[ ! -f "/tmp/docker-mailserver/opendkim/keys/${DOMAINNAME}/mail.private" ]]
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then
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echo "Creating DKIM private key /tmp/docker-mailserver/opendkim/keys/${DOMAINNAME}/mail.private"
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opendkim-genkey --bits="${KEYSIZE}" --subdomains --DOMAIN="${DOMAINNAME}" --selector=mail -D "/tmp/docker-mailserver/opendkim/keys/${DOMAINNAME}"
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fi
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# write to KeyTable if necessary
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KEYTABLEENTRY="mail._domainkey.${DOMAINNAME} ${DOMAINNAME}:mail:/etc/opendkim/keys/${DOMAINNAME}/mail.private"
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if [[ ! -f "/tmp/docker-mailserver/opendkim/KeyTable" ]]
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then
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echo "Creating DKIM KeyTable"
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echo "${KEYTABLEENTRY}" > /tmp/docker-mailserver/opendkim/KeyTable
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else
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if ! grep -q "${KEYTABLEENTRY}" "/tmp/docker-mailserver/opendkim/KeyTable"
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then
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echo "${KEYTABLEENTRY}" >>/tmp/docker-mailserver/opendkim/KeyTable
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fi
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fi
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# write to SigningTable if necessary
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SIGNINGTABLEENTRY="*@${DOMAINNAME} mail._domainkey.${DOMAINNAME}"
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if [[ ! -f /tmp/docker-mailserver/opendkim/SigningTable ]]
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then
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echo "Creating DKIM SigningTable"
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echo "*@${DOMAINNAME} mail._domainkey.${DOMAINNAME}" >/tmp/docker-mailserver/opendkim/SigningTable
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else
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if ! grep -q "${SIGNINGTABLEENTRY}" /tmp/docker-mailserver/opendkim/SigningTable
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then
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echo "${SIGNINGTABLEENTRY}" >> /tmp/docker-mailserver/opendkim/SigningTable
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fi
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fi
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done < <(grep -vE '^(\s*$|#)' /tmp/vhost)
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# creates TrustedHosts if missing
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if [[ -d /tmp/docker-mailserver/opendkim ]] && [[ ! -f /tmp/docker-mailserver/opendkim/TrustedHosts ]]
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then
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echo "Creating DKIM TrustedHosts"
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echo "127.0.0.1" >/tmp/docker-mailserver/opendkim/TrustedHosts
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echo "localhost" >>/tmp/docker-mailserver/opendkim/TrustedHosts
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fi
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