366 lines
13 KiB
Bash
Executable File
366 lines
13 KiB
Bash
Executable File
#!/bin/bash
|
|
set -o pipefail
|
|
exec 5>&1
|
|
|
|
source /srv/functions.sh
|
|
# Thanks to https://github.com/cvmiller -> https://github.com/cvmiller/expand6
|
|
source /srv/expand6.sh
|
|
|
|
# Skipping IP check when we like to live dangerously
|
|
if [[ "${SKIP_IP_CHECK}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
|
|
SKIP_IP_CHECK=y
|
|
fi
|
|
|
|
# Skipping HTTP check when we like to live dangerously
|
|
if [[ "${SKIP_HTTP_VERIFICATION}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
|
|
SKIP_HTTP_VERIFICATION=y
|
|
fi
|
|
|
|
# Request certificate for MAILCOW_HOSTNAME only
|
|
if [[ "${ONLY_MAILCOW_HOSTNAME}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
|
|
ONLY_MAILCOW_HOSTNAME=y
|
|
fi
|
|
|
|
# Request individual certificate for every domain
|
|
if [[ "${ENABLE_SSL_SNI}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
|
|
ENABLE_SSL_SNI=y
|
|
fi
|
|
|
|
if [[ "${SKIP_LETS_ENCRYPT}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
|
|
log_f "SKIP_LETS_ENCRYPT=y, skipping Let's Encrypt..."
|
|
sleep 365d
|
|
exec $(readlink -f "$0")
|
|
fi
|
|
|
|
log_f "Waiting for Docker API..." no_nl
|
|
until ping dockerapi -c1 > /dev/null; do
|
|
sleep 1
|
|
done
|
|
log_f "OK" no_date
|
|
|
|
ACME_BASE=/var/lib/acme
|
|
SSL_EXAMPLE=/var/lib/ssl-example
|
|
|
|
mkdir -p ${ACME_BASE}/acme
|
|
|
|
# Migrate
|
|
[[ -f ${ACME_BASE}/acme/private/privkey.pem ]] && mv ${ACME_BASE}/acme/private/privkey.pem ${ACME_BASE}/acme/key.pem
|
|
[[ -f ${ACME_BASE}/acme/private/account.key ]] && mv ${ACME_BASE}/acme/private/account.key ${ACME_BASE}/acme/account.pem
|
|
if [[ -f ${ACME_BASE}/acme/key.pem && -f ${ACME_BASE}/acme/cert.pem ]]; then
|
|
if verify_hash_match ${ACME_BASE}/acme/cert.pem ${ACME_BASE}/acme/key.pem; then
|
|
log_f "Migrating to SNI folder structure..." no_nl
|
|
CERT_DOMAIN=($(openssl x509 -noout -text -in ${ACME_BASE}/acme/cert.pem | grep "Subject:" | sed -e 's/\(Subject:\)\|\(CN = \)\|\(CN=\)//g' | sed -e 's/^[[:space:]]*//'))
|
|
CERT_DOMAINS=(${CERT_DOMAIN} $(openssl x509 -noout -text -in ${ACME_BASE}/acme/cert.pem | grep "DNS:" | sed -e 's/\(DNS:\)\|,//g' | sed "s/${CERT_DOMAIN}//" | sed -e 's/^[[:space:]]*//'))
|
|
mkdir -p ${ACME_BASE}/${CERT_DOMAIN}
|
|
mv ${ACME_BASE}/acme/cert.pem ${ACME_BASE}/${CERT_DOMAIN}/cert.pem
|
|
# key is only copied, not moved, because it is used by all other requests too
|
|
cp ${ACME_BASE}/acme/key.pem ${ACME_BASE}/${CERT_DOMAIN}/key.pem
|
|
chmod 600 ${ACME_BASE}/${CERT_DOMAIN}/key.pem
|
|
echo -n ${CERT_DOMAINS[*]} > ${ACME_BASE}/${CERT_DOMAIN}/domains
|
|
mv ${ACME_BASE}/acme/acme.csr ${ACME_BASE}/${CERT_DOMAIN}/acme.csr
|
|
log_f "OK" no_date
|
|
fi
|
|
fi
|
|
|
|
[[ ! -f ${ACME_BASE}/dhparams.pem ]] && cp ${SSL_EXAMPLE}/dhparams.pem ${ACME_BASE}/dhparams.pem
|
|
|
|
if [[ -f ${ACME_BASE}/cert.pem ]] && [[ -f ${ACME_BASE}/key.pem ]] && [[ $(stat -c%s ${ACME_BASE}/cert.pem) != 0 ]]; then
|
|
ISSUER=$(openssl x509 -in ${ACME_BASE}/cert.pem -noout -issuer)
|
|
if [[ ${ISSUER} != *"Let's Encrypt"* && ${ISSUER} != *"mailcow"* && ${ISSUER} != *"Fake LE Intermediate"* ]]; then
|
|
log_f "Found certificate with issuer other than mailcow snake-oil CA and Let's Encrypt, skipping ACME client..."
|
|
sleep 3650d
|
|
exec $(readlink -f "$0")
|
|
fi
|
|
else
|
|
if [[ -f ${ACME_BASE}/${MAILCOW_HOSTNAME}/cert.pem ]] && [[ -f ${ACME_BASE}/${MAILCOW_HOSTNAME}/key.pem ]] && verify_hash_match ${ACME_BASE}/${MAILCOW_HOSTNAME}/cert.pem ${ACME_BASE}/${MAILCOW_HOSTNAME}/key.pem; then
|
|
log_f "Restoring previous acme certificate and restarting script..."
|
|
cp ${ACME_BASE}/${MAILCOW_HOSTNAME}/cert.pem ${ACME_BASE}/cert.pem
|
|
cp ${ACME_BASE}/${MAILCOW_HOSTNAME}/key.pem ${ACME_BASE}/key.pem
|
|
# Restarting with env var set to trigger a restart,
|
|
exec env TRIGGER_RESTART=1 $(readlink -f "$0")
|
|
else
|
|
log_f "Restoring mailcow snake-oil certificates and restarting script..."
|
|
cp ${SSL_EXAMPLE}/cert.pem ${ACME_BASE}/cert.pem
|
|
cp ${SSL_EXAMPLE}/key.pem ${ACME_BASE}/key.pem
|
|
exec env TRIGGER_RESTART=1 $(readlink -f "$0")
|
|
fi
|
|
fi
|
|
|
|
chmod 600 ${ACME_BASE}/key.pem
|
|
|
|
log_f "Waiting for database... " no_nl
|
|
while ! mysqladmin status --socket=/var/run/mysqld/mysqld.sock -u${DBUSER} -p${DBPASS} --silent; do
|
|
sleep 2
|
|
done
|
|
log_f "OK" no_date
|
|
|
|
log_f "Waiting for Nginx... " no_nl
|
|
until $(curl --output /dev/null --silent --head --fail http://nginx:8081); do
|
|
sleep 2
|
|
done
|
|
log_f "OK" no_date
|
|
|
|
# Waiting for domain table
|
|
log_f "Waiting for domain table... " no_nl
|
|
while [[ -z ${DOMAIN_TABLE} ]]; do
|
|
curl --silent http://nginx/ >/dev/null 2>&1
|
|
DOMAIN_TABLE=$(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SHOW TABLES LIKE 'domain'" -Bs)
|
|
[[ -z ${DOMAIN_TABLE} ]] && sleep 10
|
|
done
|
|
log_f "OK" no_date
|
|
|
|
log_f "Initializing, please wait... "
|
|
|
|
while true; do
|
|
|
|
# Re-using previous acme-mailcow account and domain keys
|
|
if [[ ! -f ${ACME_BASE}/acme/key.pem ]]; then
|
|
log_f "Generating missing domain private rsa key..."
|
|
openssl genrsa 4096 > ${ACME_BASE}/acme/key.pem
|
|
else
|
|
log_f "Using existing domain rsa key ${ACME_BASE}/acme/key.pem"
|
|
fi
|
|
if [[ ! -f ${ACME_BASE}/acme/account.pem ]]; then
|
|
log_f "Generating missing Lets Encrypt account key..."
|
|
openssl genrsa 4096 > ${ACME_BASE}/acme/account.pem
|
|
else
|
|
log_f "Using existing Lets Encrypt account key ${ACME_BASE}/acme/account.pem"
|
|
fi
|
|
|
|
chmod 600 ${ACME_BASE}/acme/key.pem
|
|
chmod 600 ${ACME_BASE}/acme/account.pem
|
|
|
|
unset EXISTING_CERTS
|
|
declare -a EXISTING_CERTS
|
|
for cert_dir in ${ACME_BASE}/*/ ; do
|
|
if [[ ! -f ${cert_dir}domains ]] || [[ ! -f ${cert_dir}cert.pem ]] || [[ ! -f ${cert_dir}key.pem ]]; then
|
|
continue
|
|
fi
|
|
EXISTING_CERTS+=("$(basename ${cert_dir})")
|
|
done
|
|
|
|
# Cleaning up and init validation arrays
|
|
unset SQL_DOMAIN_ARR
|
|
unset VALIDATED_CONFIG_DOMAINS
|
|
unset ADDITIONAL_VALIDATED_SAN
|
|
unset ADDITIONAL_WC_ARR
|
|
unset ADDITIONAL_SAN_ARR
|
|
unset CERT_ERRORS
|
|
unset CERT_CHANGED
|
|
unset CERT_AMOUNT_CHANGED
|
|
unset VALIDATED_CERTIFICATES
|
|
CERT_ERRORS=0
|
|
CERT_CHANGED=0
|
|
CERT_AMOUNT_CHANGED=0
|
|
declare -a SQL_DOMAIN_ARR
|
|
declare -a VALIDATED_CONFIG_DOMAINS
|
|
declare -a ADDITIONAL_VALIDATED_SAN
|
|
declare -a ADDITIONAL_WC_ARR
|
|
declare -a ADDITIONAL_SAN_ARR
|
|
declare -a VALIDATED_CERTIFICATES
|
|
IFS=',' read -r -a TMP_ARR <<< "${ADDITIONAL_SAN}"
|
|
for i in "${TMP_ARR[@]}" ; do
|
|
if [[ "$i" =~ \.\*$ ]]; then
|
|
ADDITIONAL_WC_ARR+=(${i::-2})
|
|
else
|
|
ADDITIONAL_SAN_ARR+=($i)
|
|
fi
|
|
done
|
|
ADDITIONAL_WC_ARR+=('autodiscover' 'autoconfig')
|
|
|
|
# Start IP detection
|
|
log_f "Detecting IP addresses... " no_nl
|
|
IPV4=$(get_ipv4)
|
|
IPV6=$(get_ipv6)
|
|
log_f "OK" no_date
|
|
|
|
# Hard-fail on CAA errors for MAILCOW_HOSTNAME
|
|
MH_PARENT_DOMAIN=$(echo ${MAILCOW_HOSTNAME} | cut -d. -f2-)
|
|
MH_CAAS=( $(dig CAA ${MH_PARENT_DOMAIN} +short | sed -n 's/\d issue "\(.*\)"/\1/p') )
|
|
if [[ ! -z ${MH_CAAS} ]]; then
|
|
if [[ ${MH_CAAS[@]} =~ "letsencrypt.org" ]]; then
|
|
log_f "Validated CAA for parent domain ${MH_PARENT_DOMAIN}"
|
|
else
|
|
log_f "Skipping ACME validation: Lets Encrypt disallowed for ${MAILCOW_HOSTNAME} by CAA record, retrying in 1h..."
|
|
sleep 1h
|
|
exec $(readlink -f "$0")
|
|
fi
|
|
fi
|
|
|
|
#########################################
|
|
# IP and webroot challenge verification #
|
|
SQL_DOMAINS=$(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT domain FROM domain WHERE backupmx=0" -Bs)
|
|
if [[ ! $? -eq 0 ]]; then
|
|
log_f "Failed to read SQL domains, retrying in 1 minute..."
|
|
sleep 1m
|
|
exec $(readlink -f "$0")
|
|
fi
|
|
while read domains; do
|
|
if [[ -z "${domains}" ]]; then
|
|
# ignore empty lines
|
|
continue
|
|
fi
|
|
SQL_DOMAIN_ARR+=("${domains}")
|
|
done <<< "${SQL_DOMAINS}"
|
|
|
|
if [[ ${ONLY_MAILCOW_HOSTNAME} != "y" ]]; then
|
|
for SQL_DOMAIN in "${SQL_DOMAIN_ARR[@]}"; do
|
|
unset VALIDATED_CONFIG_DOMAINS_SUBDOMAINS
|
|
declare -a VALIDATED_CONFIG_DOMAINS_SUBDOMAINS
|
|
for SUBDOMAIN in "${ADDITIONAL_WC_ARR[@]}"; do
|
|
if [[ "${SUBDOMAIN}.${SQL_DOMAIN}" != "${MAILCOW_HOSTNAME}" ]]; then
|
|
if check_domain "${SUBDOMAIN}.${SQL_DOMAIN}"; then
|
|
VALIDATED_CONFIG_DOMAINS_SUBDOMAINS+=("${SUBDOMAIN}.${SQL_DOMAIN}")
|
|
fi
|
|
fi
|
|
done
|
|
VALIDATED_CONFIG_DOMAINS+=("${VALIDATED_CONFIG_DOMAINS_SUBDOMAINS[*]}")
|
|
done
|
|
fi
|
|
|
|
if check_domain ${MAILCOW_HOSTNAME}; then
|
|
VALIDATED_MAILCOW_HOSTNAME="${MAILCOW_HOSTNAME}"
|
|
fi
|
|
|
|
if [[ ${ONLY_MAILCOW_HOSTNAME} != "y" ]]; then
|
|
for SAN in "${ADDITIONAL_SAN_ARR[@]}"; do
|
|
# Skip on CAA errors for SAN
|
|
SAN_PARENT_DOMAIN=$(echo ${SAN} | cut -d. -f2-)
|
|
SAN_CAAS=( $(dig CAA ${SAN_PARENT_DOMAIN} +short | sed -n 's/\d issue "\(.*\)"/\1/p') )
|
|
if [[ ! -z ${SAN_CAAS} ]]; then
|
|
if [[ ${SAN_CAAS[@]} =~ "letsencrypt.org" ]]; then
|
|
log_f "Validated CAA for parent domain ${SAN_PARENT_DOMAIN} of ${SAN}"
|
|
else
|
|
log_f "Skipping ACME validation for ${SAN}: Lets Encrypt disallowed for ${SAN} by CAA record"
|
|
continue
|
|
fi
|
|
fi
|
|
if [[ ${SAN} == ${MAILCOW_HOSTNAME} ]]; then
|
|
continue
|
|
fi
|
|
if check_domain ${SAN}; then
|
|
ADDITIONAL_VALIDATED_SAN+=("${SAN}")
|
|
fi
|
|
done
|
|
fi
|
|
|
|
# Unique domains for server certificate
|
|
if [[ ${ENABLE_SSL_SNI} == "y" ]]; then
|
|
# create certificate for server name and fqdn SANs only
|
|
SERVER_SAN_VALIDATED=(${VALIDATED_MAILCOW_HOSTNAME} $(echo ${ADDITIONAL_VALIDATED_SAN[*]} | xargs -n1 | sort -u | xargs))
|
|
else
|
|
# create certificate for all domains, including all subdomains from other domains [*]
|
|
SERVER_SAN_VALIDATED=(${VALIDATED_MAILCOW_HOSTNAME} $(echo ${VALIDATED_CONFIG_DOMAINS[*]} ${ADDITIONAL_VALIDATED_SAN[*]} | xargs -n1 | sort -u | xargs))
|
|
fi
|
|
if [[ ! -z ${SERVER_SAN_VALIDATED[*]} ]]; then
|
|
CERT_NAME=${SERVER_SAN_VALIDATED[0]}
|
|
VALIDATED_CERTIFICATES+=("${CERT_NAME}")
|
|
|
|
# obtain server certificate if required
|
|
DOMAINS=${SERVER_SAN_VALIDATED[@]} /srv/obtain-certificate.sh rsa
|
|
RETURN="$?"
|
|
if [[ "$RETURN" == "0" ]]; then # 0 = cert created successfully
|
|
CERT_AMOUNT_CHANGED=1
|
|
CERT_CHANGED=1
|
|
elif [[ "$RETURN" == "1" ]]; then # 1 = cert renewed successfully
|
|
CERT_CHANGED=1
|
|
elif [[ "$RETURN" == "2" ]]; then # 2 = cert not due for renewal
|
|
:
|
|
else
|
|
CERT_ERRORS=1
|
|
fi
|
|
# copy hostname certificate to default/server certificate
|
|
cp ${ACME_BASE}/${CERT_NAME}/cert.pem ${ACME_BASE}/cert.pem
|
|
cp ${ACME_BASE}/${CERT_NAME}/key.pem ${ACME_BASE}/key.pem
|
|
fi
|
|
|
|
# individual certificates for SNI [@]
|
|
if [[ ${ENABLE_SSL_SNI} == "y" ]]; then
|
|
for VALIDATED_DOMAINS in "${VALIDATED_CONFIG_DOMAINS[@]}"; do
|
|
VALIDATED_DOMAINS_ARR=(${VALIDATED_DOMAINS})
|
|
|
|
unset VALIDATED_DOMAINS_SORTED
|
|
declare -a VALIDATED_DOMAINS_SORTED
|
|
VALIDATED_DOMAINS_SORTED=(${VALIDATED_DOMAINS_ARR[0]} $(echo ${VALIDATED_DOMAINS_ARR[@]:1} | xargs -n1 | sort -u | xargs))
|
|
|
|
# remove all domain names that are already inside the server certificate (SERVER_SAN_VALIDATED)
|
|
for domain in "${SERVER_SAN_VALIDATED[@]}"; do
|
|
for i in "${!VALIDATED_DOMAINS_SORTED[@]}"; do
|
|
if [[ ${VALIDATED_DOMAINS_SORTED[i]} = $domain ]]; then
|
|
unset 'VALIDATED_DOMAINS_SORTED[i]'
|
|
fi
|
|
done
|
|
done
|
|
|
|
if [[ ! -z ${VALIDATED_DOMAINS_SORTED[*]} ]]; then
|
|
CERT_NAME=${VALIDATED_DOMAINS_SORTED[0]}
|
|
VALIDATED_CERTIFICATES+=("${CERT_NAME}")
|
|
# obtain certificate if required
|
|
DOMAINS=${VALIDATED_DOMAINS_SORTED[@]} /srv/obtain-certificate.sh rsa
|
|
RETURN="$?"
|
|
if [[ "$RETURN" == "0" ]]; then # 0 = cert created successfully
|
|
CERT_AMOUNT_CHANGED=1
|
|
CERT_CHANGED=1
|
|
elif [[ "$RETURN" == "1" ]]; then # 1 = cert renewed successfully
|
|
CERT_CHANGED=1
|
|
elif [[ "$RETURN" == "2" ]]; then # 2 = cert not due for renewal
|
|
:
|
|
else
|
|
CERT_ERRORS=1
|
|
fi
|
|
fi
|
|
done
|
|
fi
|
|
|
|
if [[ -z ${VALIDATED_CERTIFICATES[*]} ]]; then
|
|
log_f "Cannot validate any hostnames, skipping Let's Encrypt for 1 hour."
|
|
log_f "Use SKIP_LETS_ENCRYPT=y in mailcow.conf to skip it permanently."
|
|
redis-cli -h redis SET ACME_FAIL_TIME "$(date +%s)"
|
|
sleep 1h
|
|
exec $(readlink -f "$0")
|
|
fi
|
|
|
|
# find orphaned certificates if no errors occurred
|
|
if [[ "${CERT_ERRORS}" == "0" ]]; then
|
|
for EXISTING_CERT in "${EXISTING_CERTS[@]}"; do
|
|
if [[ ! "`printf '_%s_\n' "${VALIDATED_CERTIFICATES[@]}"`" == *"_${EXISTING_CERT}_"* ]]; then
|
|
DATE=$(date +%Y-%m-%d_%H_%M_%S)
|
|
log_f "Found orphaned certificate: ${EXISTING_CERT} - archiving it at ${ACME_BASE}/backups/${EXISTING_CERT}/"
|
|
BACKUP_DIR=${ACME_BASE}/backups/${EXISTING_CERT}/${DATE}
|
|
# archive rsa cert and any other files
|
|
mkdir -p ${ACME_BASE}/backups/${EXISTING_CERT}
|
|
mv ${ACME_BASE}/${EXISTING_CERT} ${BACKUP_DIR}
|
|
CERT_CHANGED=1
|
|
CERT_AMOUNT_CHANGED=1
|
|
fi
|
|
done
|
|
fi
|
|
|
|
# reload on new or changed certificates
|
|
if [[ "${CERT_CHANGED}" == "1" ]]; then
|
|
CERT_AMOUNT_CHANGED=${CERT_AMOUNT_CHANGED} /srv/reload-configurations.sh
|
|
fi
|
|
|
|
case "$CERT_ERRORS" in
|
|
0) # all successful
|
|
if [[ "${CERT_CHANGED}" == "1" ]]; then
|
|
if [[ "${CERT_AMOUNT_CHANGED}" == "1" ]]; then
|
|
log_f "Certificates successfully requested and renewed where required, sleeping one day"
|
|
else
|
|
log_f "Certificates were successfully renewed where required, sleeping for another day."
|
|
fi
|
|
else
|
|
log_f "Certificates were successfully validated, no changes or renewals required, sleeping for another day."
|
|
fi
|
|
sleep 1d
|
|
;;
|
|
*) # non-zero
|
|
log_f "Some errors occurred, retrying in 30 minutes..."
|
|
redis-cli -h redis SET ACME_FAIL_TIME "$(date +%s)"
|
|
sleep 30m
|
|
exec $(readlink -f "$0")
|
|
;;
|
|
esac
|
|
|
|
done
|