140 lines
5.2 KiB
Bash
Executable File
140 lines
5.2 KiB
Bash
Executable File
#!/bin/bash
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ACME_BASE=/var/lib/acme
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SSL_EXAMPLE=/var/lib/ssl-example
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mkdir -p ${ACME_BASE}/acme/private
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restart_containers(){
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for container in $*; do
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curl -X POST \
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--unix-socket /var/run/docker.sock \
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"http/containers/${container}/restart"
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done
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}
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if [[ -f ${ACME_BASE}/cert.pem ]]; then
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ISSUER=$(openssl x509 -in ${ACME_BASE}/cert.pem -noout -issuer)
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if [[ ${ISSUER} != *"Let's Encrypt"* && ${ISSUER} != *"mailcow"* ]]; then
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echo "Found certificate with issuer other than mailcow snake-oil CA and Let's Encrypt, skipping ACME client..."
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exit 0
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else
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declare -a SAN_ARRAY_NOW
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SAN_NAMES=$(openssl x509 -noout -text -in ${ACME_BASE}/cert.pem | awk '/X509v3 Subject Alternative Name/ {getline;gsub(/ /, "", $0); print}' | tr -d "DNS:")
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if [[ ! -z ${SAN_NAMES} ]]; then
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IFS=',' read -a SAN_ARRAY_NOW <<< ${SAN_NAMES}
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echo "Found Let's Encrypt or mailcow snake-oil CA issued certificate with SANs: ${SAN_ARRAY_NOW[*]}"
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fi
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fi
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else
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ISSUER="mailcow"
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if [[ -f ${ACME_BASE}/acme/fullchain.pem ]] && [[ -f ${ACME_BASE}/acme/private/privkey.pem ]]; then
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cp ${ACME_BASE}/acme/fullchain.pem ${ACME_BASE}/cert.pem
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cp ${ACME_BASE}/acme/private/privkey.pem ${ACME_BASE}/key.pem
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else
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cp ${SSL_EXAMPLE}/cert.pem ${ACME_BASE}/cert.pem
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cp ${SSL_EXAMPLE}/key.pem ${ACME_BASE}/key.pem
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fi
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fi
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while true; do
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if [[ "${SKIP_LETS_ENCRYPT}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
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echo "SKIP_LETS_ENCRYPT=y, skipping Let's Encrypt..."
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exit 0
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fi
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declare -a SQL_DOMAIN_ARR
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declare -a VALIDATED_CONFIG_DOMAINS
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declare -a ADDITIONAL_VALIDATED_SAN
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IFS=' ' read -r -a ADDITIONAL_SAN_ARR <<< "${ADDITIONAL_SAN}"
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IPV4=$(curl -4s https://mailcow.email/ip.php)
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while read line; do
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SQL_DOMAIN_ARR+=("${line}")
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done < <(mysql -h mysql-mailcow -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT domain FROM domain" -Bs)
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for SQL_DOMAIN in "${SQL_DOMAIN_ARR[@]}"; do
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A_CONFIG=$(dig A autoconfig.${SQL_DOMAIN} +short | tail -n 1)
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if [[ ! -z ${A_CONFIG} ]]; then
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echo "Found A record for autoconfig.${SQL_DOMAIN}: ${A_CONFIG}"
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if [[ ${IPV4} == ${A_CONFIG} ]]; then
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echo "Confirmed A record autoconfig.${SQL_DOMAIN}"
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VALIDATED_CONFIG_DOMAINS+=("autoconfig.${SQL_DOMAIN}")
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else
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echo "Cannot match Your IP against hostname autoconfig.${SQL_DOMAIN}"
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fi
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else
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echo "No A record for autoconfig.${SQL_DOMAIN} found"
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fi
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A_DISCOVER=$(dig A autodiscover.${SQL_DOMAIN} +short | tail -n 1)
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if [[ ! -z ${A_DISCOVER} ]]; then
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echo "Found A record for autodiscover.${SQL_DOMAIN}: ${A_CONFIG}"
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if [[ ${IPV4} == ${A_DISCOVER} ]]; then
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echo "Confirmed A record autodiscover.${SQL_DOMAIN}"
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VALIDATED_CONFIG_DOMAINS+=("autodiscover.${SQL_DOMAIN}")
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else
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echo "Cannot match Your IP against hostname autodiscover.${SQL_DOMAIN}"
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fi
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else
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echo "No A record for autodiscover.${SQL_DOMAIN} found"
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fi
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done
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for SAN in "${ADDITIONAL_SAN_ARR[@]}"; do
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A_SAN=$(dig A ${SAN} +short | tail -n 1)
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if [[ ! -z ${A_SAN} ]]; then
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echo "Found A record for ${SAN}: ${A_SAN}"
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if [[ ${IPV4} == ${A_SAN} ]]; then
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echo "Confirmed A record ${SAN}"
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ADDITIONAL_VALIDATED_SAN+=("${SAN}")
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else
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echo "Cannot match Your IP against hostname ${SAN}"
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fi
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else
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echo "No A record for ${SAN} found"
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fi
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done
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ORPHANED_SAN=($(echo ${SAN_ARRAY_NOW[*]} ${VALIDATED_CONFIG_DOMAINS[*]} ${ADDITIONAL_VALIDATED_SAN[*]} ${MAILCOW_HOSTNAME} | tr ' ' '\n' | sort | uniq -u ))
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if [[ ! -z ${ORPHANED_SAN[*]} ]]; then
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DATE=$(date +%Y-%m-%d_%H_%M_%S)
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echo "Found orphaned SAN(s) ${ORPHANED_SAN[*]} in certificate, moving old files to ${ACME_BASE}/acme/private/${DATE}.bak/"
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mkdir -p ${ACME_BASE}/acme/private/${DATE}.bak/
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[[ -f ${ACME_BASE}/acme/private/account.key ]] && mv ${ACME_BASE}/acme/private/account.key ${ACME_BASE}/acme/private/${DATE}.bak/
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mv ${ACME_BASE}/acme/fullchain.pem ${ACME_BASE}/acme/private/${DATE}.bak/
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mv ${ACME_BASE}/acme/cert.pem ${ACME_BASE}/acme/private/${DATE}.bak/
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cp ${ACME_BASE}/acme/private/privkey.pem ${ACME_BASE}/acme/private/${DATE}.bak/ # Keep key for TLSA 3 1 1 records
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fi
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acme-client \
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-v -e -b -N -n \
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-f ${ACME_BASE}/acme/private/account.key \
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-k ${ACME_BASE}/acme/private/privkey.pem \
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-c ${ACME_BASE}/acme \
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${MAILCOW_HOSTNAME} ${VALIDATED_CONFIG_DOMAINS[*]} ${ADDITIONAL_VALIDATED_SAN[*]}
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case "$?" in
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0) # new certs
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# cp the new certificates and keys
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cp ${ACME_BASE}/acme/fullchain.pem ${ACME_BASE}/cert.pem
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cp ${ACME_BASE}/acme/private/privkey.pem ${ACME_BASE}/key.pem
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# restart docker containers
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restart_containers ${CONTAINERS_RESTART}
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;;
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1) # failure
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[[ -f ${ACME_BASE}/acme/private/${DATE}.bak/fullchain.pem ]] && cp ${ACME_BASE}/acme/private/${DATE}.bak/fullchain.pem ${ACME_BASE}/cert.pem
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[[ -f ${ACME_BASE}/acme/private/${DATE}.bak/privkey.pem ]] && cp ${ACME_BASE}/acme/private/${DATE}.bak/privkey.pem ${ACME_BASE}/key.pem
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exit 1;;
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2) # no change
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;;
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*) # unspecified
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[[ -f ${ACME_BASE}/acme/private/${DATE}.bak/fullchain.pem ]] && cp ${ACME_BASE}/acme/private/${DATE}.bak/fullchain.pem ${ACME_BASE}/cert.pem
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[[ -f ${ACME_BASE}/acme/private/${DATE}.bak/privkey.pem ]] && cp ${ACME_BASE}/acme/private/${DATE}.bak/privkey.pem ${ACME_BASE}/key.pem
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exit 1;;
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esac
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echo "ACME certificate validation done. Sleeping for another day."
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sleep 86400
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done
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