Evoacme: refactoring
* add a lot of variables, to reduce possible typos * add a lot of debug statements * add many comments and line breaks for readability * extract functions for complex openssl commands * explode the big certbot command into multiple lines * allow certbot to make test certs (for API query limits) * allow certbot to run in "dry run" mode * regroup some lines together when they do related things
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1091dfeeed
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@ -28,16 +28,36 @@ error() {
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exit 1
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}
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mkconf_apache() {
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debug "Apache detected... first configuration"
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[ -f "/etc/apache2/ssl/${vhost}.conf" ] && sed -i "s~^SSLCertificateFile.*$~SSLCertificateFile $CRT_DIR/${vhost}/live/fullchain.pem~" "/etc/apache2/ssl/${vhost}.conf"
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apache2ctl -t
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change_cert_path_for_apache() {
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vhost=$1
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vhost_full_path="/etc/apache2/ssl/${vhost}.conf"
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cert_path=$2
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debug "Apache detected... first configuration in ${vhost_full_path}"
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[ -f "${vhost_full_path}" ] && sed -i "s~^SSLCertificateFile.*$~SSLCertificateFile ${cert_path}~" "${vhost_full_path}"
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${APACHE2CTL_BIN} -t
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}
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mkconf_nginx() {
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debug "Nginx detected... first configuration"
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[ -f "/etc/nginx/ssl/${vhost}.conf" ] && sed -i "s~^ssl_certificate[^_].*$~ssl_certificate $CRT_DIR/${vhost}/live/fullchain.pem;~" "/etc/nginx/ssl/${vhost}.conf"
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nginx -t
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change_cert_path_for_nginx() {
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vhost=$1
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vhost_full_path="/etc/nginx/ssl/${vhost}.conf"
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cert_path=$2
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debug "Nginx detected... first configuration in ${vhost_full_path}"
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[ -f "${vhost_full_path}" ] && sed -i "s~^ssl_certificate[^_].*$~ssl_certificate ${cert_path};~" "${vhost_full_path}"
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${NGINX_BIN} -t
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}
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x509_verify() {
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file=$1
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${OPENSSL_BIN} x509 -noout -modulus -in "${file}" >/dev/null
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}
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x509_enddate() {
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file=$1
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${OPENSSL_BIN} x509 -noout -enddate -in "${file}"
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}
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main() {
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@ -51,87 +71,168 @@ main() {
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[ -z "${SELF_SIGNED_DIR}" ] && SELF_SIGNED_DIR=/etc/ssl/self-signed
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[ -z "${DH_DIR}" ] && DH_DIR=etc/ssl/dhparam
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# misc verifications
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[ "$1" = "-h" ] || [ "$1" = "--help" ] && usage && exit 0
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which openssl >/dev/null || error "openssl command not installed"
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which certbot >/dev/null || error "certbot command not installed"
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[ ! -d $ACME_DIR ] && error "$ACME_DIR is not a directory"
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[ ! -d $CSR_DIR ] && error "$CSR_DIR is not a directory"
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[ ! -d $LOG_DIR ] && error "$LOG_DIR is not a directory"
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# check arguments
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[ "$#" -ge 3 ] || [ "$#" -le 0 ] && error "invalid argument(s)"
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[ "$#" -eq 2 ] && [ "$1" != "--cron" ] && error "invalid argument(s)"
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[ "$#" -eq 1 ] && vhost=$(basename "$1" .conf) && CRON=NO
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[ "$#" -eq 2 ] && vhost=$(basename "$2" .conf) && CRON=YES
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[ "$#" -eq 1 ] && VHOST=$(basename "$1" .conf) && CRON=NO
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[ "$#" -eq 2 ] && VHOST=$(basename "$2" .conf) && CRON=YES
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# check for important programs
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OPENSSL_BIN=$(command -v openssl)
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if [ "$?" -eq 0 ]; then
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error "openssl command not installed"
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fi
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CERTBOT_BIN=$(command -v certbot)
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if [ "$?" -eq 0 ]; then
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error "certbot command not installed"
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fi
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APACHE2CTL_BIN=$(command -v apache2ctl)
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NGINX_BIN=$(command -v nginx)
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# double check for directories
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[ ! -d "${ACME_DIR}" ] && error "${ACME_DIR} is not a directory"
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[ ! -d "${CSR_DIR}" ] && error "${CSR_DIR} is not a directory"
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[ ! -d "${LOG_DIR} "] && error "${LOG_DIR} is not a directory"
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#### CSR VALIDATION
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# verify .csr file
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[ ! -f "$CSR_DIR/${vhost}.csr" ] && error "$CSR_DIR/${vhost}.csr absent"
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[ ! -r "$CSR_DIR/${vhost}.csr" ] && error "$C´SR_DIR/${vhost}.csr is not readable"
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openssl req -noout -modulus -in "$CSR_DIR/${vhost}.csr" >/dev/null || error "$CSR_DIR/${vhost}.csr is invalid"
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debug "Using CSR file: $CSR_DIR/${vhost}.csr"
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CSR_FILE="${CSR_DIR}/${VHOST}.csr"
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debug "Using CSR file: ${CSR_FILE}"
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[ ! -f "${CSR_FILE}" ] && error "${CSR_FILE} absent"
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[ ! -r "${CSR_FILE}" ] && error "${CSR_FILE} is not readable"
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x509_verify "${CSR_FILE}" || error "${CSR_FILE} is invalid"
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# Hook for evoadmin-web in cluster mode : check master status
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if [ -f "/home/${vhost}/state" ]; then
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grep -q "STATE=master" "/home/${vhost}/state" || exit 0
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evoadmin_state_file="/home/${VHOST}/state"
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if [ -f "${evoadmin_state_file}" ]; then
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grep -q "STATE=master" "${evoadmin_state_file}"
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if [ "$?" != 0 ]; then
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debug "We are not the master of this evoadmin cluster. Quit!"
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exit 0
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fi
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fi
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if [ -n "$SSL_EMAIL" ]; then
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emailopt="-m $SSL_EMAIL"
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else
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emailopt="--register-unsafely-without-email"
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fi
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#### INIT OR RENEW?
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DATE=$(date "+%Y%m%d")
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[ ! -n "$DATE" ] && error "invalid date"
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LIVE_DIR="${CRT_DIR}/${VHOST}/live"
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LIVE_CERT="${LIVE_DIR}/cert.crt"
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LIVE_FULLCHAIN="${LIVE_DIR}/fullchain.pem"
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LIVE_CHAIN="${LIVE_DIR}/chain.pem"
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# If live link already exists, it's not our first time...
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if [ -h "$CRT_DIR/${vhost}/live" ]; then
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openssl x509 -noout -modulus -in "$CRT_DIR/${vhost}/live/cert.crt" >/dev/null || error "$CRT_DIR/${vhost}/live/cert.crt is invalid"
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# If live symlink already exists, it's not our first time...
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if [ -h "${LIVE_DIR}" ]; then
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# we have a live symlink
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# let's see if there is a cert to renew
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x509_verify "${LIVE_CERT}" || error "${LIVE_CERT} is invalid"
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# Verify if our certificate will expire
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crt_end_date=$(openssl x509 -noout -enddate -in "$CRT_DIR/${vhost}/live/cert.crt" | cut -d= -f2)
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date_renew=$(date -ud "$crt_end_date - $SSL_MINDAY days" +"%s")
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crt_end_date=$(x509_enddate "${LIVE_CERT}" | cut -d= -f2)
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date_renew=$(date -ud "${crt_end_date} - ${SSL_MINDAY} days" +"%s")
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date_today=$(date +'%s')
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[ "$date_today" -lt "$date_renew" ] && debug "Cert $CRT_DIR/${vhost}/live/cert.crt expires at $crt_end_date => more than $SSL_MINDAY days: thxbye." && exit 0
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if [ "${date_today}" -lt "${date_renew}" ]; then
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debug "Cert ${LIVE_CERT} expires at ${crt_end_date} => more than ${SSL_MINDAY} days: kthxbye."
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exit 0
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fi
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else
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which apache2ctl >/dev/null && mkconf_apache
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which nginx >/dev/null && mkconf_nginx
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# We don't have a live symlink yet
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# Let's start from scratch and configure our web server(s)
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if [ -n "${APACHE2CTL_BIN}" ]; then
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change_cert_path_for_apache "${VHOST}" "${LIVE_FULLCHAIN}"
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fi
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if [ -n "${NGINX_BIN}" ]; then
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change_cert_path_for_nginx "${VHOST}" "${LIVE_FULLCHAIN}"
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fi
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fi
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# renew certificate with certbot
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[ -d "$CRT_DIR/${vhost}/${DATE}" ] && error "$CRT_DIR/${vhost}/${DATE} directory already exists, remove it manually."
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mkdir -pm 755 "$CRT_DIR/${vhost}/${DATE}"
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chown -R acme: "$CRT_DIR/${vhost}/${DATE}"
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[ "$CRON" = "YES" ] && CERTBOT_OPTS="--quiet"
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sudo -u acme certbot certonly $CERTBOT_OPTS --webroot --csr "$CSR_DIR/${vhost}.csr" --webroot-path "$ACME_DIR" -n --agree-tos --cert-path="$CRT_DIR/${vhost}/${DATE}/cert.crt" --fullchain-path="$CRT_DIR/${vhost}/${DATE}/fullchain.pem" --chain-path="$CRT_DIR/${vhost}/${DATE}/chain.pem" "$emailopt" --logs-dir "$LOG_DIR" 2>&1 | grep -v "certbot.crypto_util"
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#### CERTIFICATE CREATION WITH CERTBOT
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ITERATION=$(date "+%Y%m%d")
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[ -z "${ITERATION}" ] && error "invalid iteration (${ITERATION})"
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NEW_DIR="${CRT_DIR}/${VHOST}/${ITERATION}"
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[ -d "${NEW_DIR}" ] && error "${NEW_DIR} directory already exists, remove it manually."
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mkdir -pm 755 "${NEW_DIR}"
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chown -R acme: "${NEW_DIR}"
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debug "New cert will be created in ${NEW_DIR}"
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NEW_CERT="${NEW_DIR}/cert.crt"
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NEW_FULLCHAIN="${NEW_DIR}/fullchain.pem"
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NEW_CHAIN="${NEW_DIR}/chain.pem"
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CERTBOT_MODE=""
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[ "$TEST" = "YES" ] && CERTBOT_MODE="${CERTBOT_MODE} --test-cert"
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[ "$CRON" = "YES" ] && CERTBOT_MODE="${CERTBOT_MODE} --quiet"
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[ "$DRY_RUN" = "YES" ] && CERTBOT_MODE="${CERTBOT_MODE} --dry-run"
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CERTBOT_REGISTRATION="--agree-tos"
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if [ -n "${SSL_EMAIL}" ]; then
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debug "Registering at certbot with ${SSL_EMAIL} as email"
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CERTBOT_REGISTRATION="${CERTBOT_REGISTRATION} -m ${SSL_EMAIL}"
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else
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debug "Registering at certbot without email"
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CERTBOT_REGISTRATION="${CERTBOT_REGISTRATION} --register-unsafely-without-email"
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fi
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# create a certificate with certbot
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sudo -u acme ${CERTBOT_BIN} \
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certonly \
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${CERTBOT_MODE} \
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${CERTBOT_REGISTRATION} \
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--non-interactive \
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--webroot \
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--csr "${CSR_FILE}" \
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--webroot-path "${ACME_DIR}" \
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--cert-path "${NEW_CERT}" \
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--fullchain-path "${NEW_FULLCHAIN}" \
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--chain-path "${NEW_CHAIN}" \
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--logs-dir "$LOG_DIR" \
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2>&1 \
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| grep -v "certbot.crypto_util"
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# verify if all is right
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openssl x509 -noout -modulus -in "$CRT_DIR/${vhost}/${DATE}/cert.crt" >/dev/null || error "new $CRT_DIR/${vhost}/${DATE}/cert.crt is invalid"
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openssl x509 -noout -modulus -in "$CRT_DIR/${vhost}/${DATE}/fullchain.pem" >/dev/null || error "new $CRT_DIR/${vhost}/${DATE}/fullchain.pem is invalid"
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openssl x509 -noout -modulus -in "$CRT_DIR/${vhost}/${DATE}/chain.pem" >/dev/null || error "new $CRT_DIR/${vhost}/${DATE}/chain.pem is invalid"
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x509_verify "${NEW_CERT}" || error "${NEW_CERT} is invalid"
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x509_verify "${NEW_FULLCHAIN}" || error "${NEW_FULLCHAIN} is invalid"
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x509_verify "${NEW_CHAIN}" || error "${NEW_CHAIN} is invalid"
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#### CERTIFICATE ACTIVATION
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# link dance
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[ -h "$CRT_DIR/${vhost}/live" ] && rm "$CRT_DIR/${vhost}/live"
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ln -s "$CRT_DIR/${vhost}/${DATE}" "$CRT_DIR/${vhost}/live"
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openssl x509 -noout -modulus -in "$CRT_DIR/${vhost}/live/cert.crt" >/dev/null || error "new $CRT_DIR/{vhost}/live/cert.crt is invalid"
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if [ -h "${LIVE_DIR}" ]; then
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rm "${LIVE_DIR}"
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debug "Remove ${LIVE_DIR} link"
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fi
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ln -s "${NEW_DIR}" "${LIVE_DIR}"
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debug "Link ${NEW_DIR} to ${LIVE_DIR}"
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# verify final path
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x509_verify "${LIVE_CERT}" || error "${LIVE_CERT} is invalid"
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# reload apache or nginx
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# disable error catching
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# below this point anything can break
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set +e
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pidof apache2 >/dev/null
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# reload apache if present
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if [ -n "$(pidof apache2)" ]; then
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${APACHE2CTL_BIN} -t 2>/dev/null
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if [ "$?" -eq 0 ]; then
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apache2ctl -t 2>/dev/null
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if [ "$?" -eq 0 ]; then
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debug "Apache detected... reloading" && service apache2 reload
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debug "Apache detected... reloading"
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service apache2 reload
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else
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error "Apache config is broken, you must fix it !"
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fi
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fi
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pidof nginx >/dev/null
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# reload nginx if present
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if [ -n "$(pidof nginx)" ]; then
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${NGINX_BIN} -t 2>/dev/null
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if [ "$?" -eq 0 ]; then
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nginx -t 2>/dev/null
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if [ "$?" -eq 0 ]; then
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debug "Nginx detected... reloading" && service nginx reload
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debug "Nginx detected... reloading"
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service nginx reload
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else
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error "Nginx config is broken, you must fix it !"
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fi
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