set -e
set -u
set -o pipefail
+umask 077 # paranoid umask, we're creating private keys
# Get the directory in which this script is stored
SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
ROOTCERT="lets-encrypt-x1-cross-signed.pem"
CONTACT_EMAIL=
-# Check for config in various locations
-CONFIG=""
-for check_config in "${SCRIPTDIR}" "${HOME}/.letsencrypt.sh" "/usr/local/etc/letsencrypt.sh" "/etc/letsencrypt.sh" "${PWD}"; do
- if [[ -e "${check_config}/config.sh" ]]; then
- BASEDIR="${check_config}"
- CONFIG="${check_config}/config.sh"
- break
+init_system() {
+ # Check for config in various locations
+ if [[ -z "${CONFIG:-}" ]]; then
+ for check_config in "${SCRIPTDIR}" "${HOME}/.letsencrypt.sh" "/usr/local/etc/letsencrypt.sh" "/etc/letsencrypt.sh" "${PWD}"; do
+ if [[ -e "${check_config}/config.sh" ]]; then
+ BASEDIR="${check_config}"
+ CONFIG="${check_config}/config.sh"
+ break
+ fi
+ done
fi
-done
-if [[ -z "${CONFIG}" ]]; then
- echo "WARNING: No config file found, using default config!"
- sleep 2
-else
- echo "Using config file ${CONFIG}"
- # shellcheck disable=SC1090
- . "${CONFIG}"
-fi
+ if [[ -z "${CONFIG:-}" ]]; then
+ echo "WARNING: No config file found, using default config!"
+ sleep 2
+ elif [[ -e "${CONFIG}" ]]; then
+ echo "Using config file ${CONFIG}"
+ BASEDIR="$(dirname "${CONFIG}")"
+ # shellcheck disable=SC1090
+ . "${CONFIG}"
+ else
+ echo "ERROR: Specified config file doesn't exist."
+ exit 1
+ fi
-# Remove slash from end of BASEDIR. Mostly for cleaner outputs, doesn't change functionality.
-BASEDIR="${BASEDIR%%/}"
+ # Remove slash from end of BASEDIR. Mostly for cleaner outputs, doesn't change functionality.
+ BASEDIR="${BASEDIR%%/}"
-umask 077 # paranoid umask, we're creating private keys
+ # Lockfile handling (prevents concurrent access)
+ LOCKFILE="${BASEDIR}/lock"
+
+ set -o noclobber
+ if ! { date > "${LOCKFILE}"; } 2>/dev/null; then
+ echo " + ERROR: Lock file '${LOCKFILE}' present, aborting." >&2
+ LOCKFILE= # so remove_lock doesn't remove it
+ exit 1
+ fi
+ set +o noclobber
+
+ remove_lock() {
+ if [[ -n "${LOCKFILE}" ]]; then
+ rm -f "${LOCKFILE}"
+ fi
+ }
+ trap 'remove_lock' EXIT
+
+ # Export some environment variables to be used in hook script
+ export WELLKNOWN
+ export BASEDIR
+ export CONFIG
+
+ # Get CA URLs
+ CA_DIRECTORY="$(_request get "${CA}")"
+ CA_NEW_CERT="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-cert)" &&
+ CA_NEW_AUTHZ="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-authz)" &&
+ CA_NEW_REG="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-reg)" &&
+ CA_REVOKE_CERT="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value revoke-cert)" ||
+ (echo "Error retrieving ACME/CA-URLs, check if your configured CA points to the directory entrypoint."; exit 1)
+
+ # Check if private account key exists, if it doesn't exist yet generate a new one (rsa key)
+ register="0"
+ if [[ -z "${USEPRIVATEKEY:-}" ]]; then
+ USEPRIVATEKEY="${BASEDIR}/private_key.pem"
+ if [[ ! -e "${USEPRIVATEKEY}" ]]; then
+ echo "+ Generating account key..."
+ _openssl genrsa -out "${USEPRIVATEKEY}" "${KEYSIZE}"
+ register="1"
+ fi
+ elif [[ ! -e "${USEPRIVATEKEY}" ]]; then
+ echo "ERROR: Unable to find specified private key."
+ exit 1
+ else
+ echo "Using private key ${USEPRIVATEKEY} instead of account key"
+ fi
+
+ # Get public components from private key and calculate thumbprint
+ pubExponent64="$(printf "%06x" "$(openssl rsa -in "${USEPRIVATEKEY}" -noout -text | grep publicExponent | head -1 | cut -d' ' -f2)" | hex2bin | urlbase64)"
+ pubMod64="$(printf '%s' "$(openssl rsa -in "${USEPRIVATEKEY}" -noout -modulus | cut -d'=' -f2)" | hex2bin | urlbase64)"
+
+ thumbprint="$(printf '%s' "$(printf '%s' '{"e":"'"${pubExponent64}"'","kty":"RSA","n":"'"${pubMod64}"'"}' | shasum -a 256 | awk '{print $1}')" | hex2bin | urlbase64)"
+
+ # If we generated a new private key in the step above we have to register it with the acme-server
+ if [[ "${register}" = "1" ]]; then
+ echo "+ Registering account key with letsencrypt..."
+ if [ -z "${CA_NEW_REG}" ]; then
+ echo " + ERROR: Certificate authority doesn't allow registrations."
+ exit 1
+ fi
+ # if an email for the contact has been provided then adding it to the registration request
+ if [[ -n "${CONTACT_EMAIL}" ]]; then
+ signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "contact":["mailto:'"${CONTACT_EMAIL}"'"], "agreement": "'"$LICENSE"'"}' > /dev/null
+ else
+ signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "agreement": "'"$LICENSE"'"}' > /dev/null
+ fi
+ fi
-# Export some environment variables to be used in hook script
-export WELLKNOWN
-export BASEDIR
-export CONFIG
+ if [[ -e "${BASEDIR}/domains.txt" ]]; then
+ DOMAINS_TXT="${BASEDIR}/domains.txt"
+ elif [[ -e "${SCRIPTDIR}/domains.txt" ]]; then
+ DOMAINS_TXT="${SCRIPTDIR}/domains.txt"
+ else
+ echo "You have to create a domains.txt file listing the domains you want certificates for. Have a look at domains.txt.example."
+ exit 1
+ fi
+
+ if [[ ! -e "${WELLKNOWN}" ]]; then
+ mkdir -p "${WELLKNOWN}"
+ fi
+}
anti_newline() {
tr -d '\n\r'
cat "${tempcont}"
rm -f "${tempcont}"
}
-_output_on_error() {
- # Only way to capture the output and exit code is to disable set -e.
+
+# OpenSSL writes to stderr/stdout even when there are no errors. So just
+# display the output if the exit code was != 0 to simplify debugging.
+_openssl() {
set +e
- out="$("$@" 2>&1)"
+ out="$(openssl $@ 2>&1)"
res=$?
set -e
if [[ $res -ne 0 ]]; then
exit $res
fi
}
-# OpenSSL writes to stderr/stdout even when there are no errors. So just
-# display the output if the exit code was != 0 to simplify debugging.
-_openssl() {
- _output_on_error openssl "$@"
-}
signed_request() {
# Encode payload as urlbase64
protected64="$(printf '%s' "${protected}" | urlbase64)"
# Sign header with nonce and our payload with our private key and encode signature as urlbase64
- signed64="$(printf '%s' "${protected64}.${payload64}" | openssl dgst -sha256 -sign "${BASEDIR}/private_key.pem" | urlbase64)"
+ signed64="$(printf '%s' "${protected64}.${payload64}" | openssl dgst -sha256 -sign "${USEPRIVATEKEY}" | urlbase64)"
# Send header + extended header + payload + signature to the acme-server
data='{"header": '"${header}"', "protected": "'"${protected64}"'", "payload": "'"${payload64}"'", "signature": "'"${signed64}"'"}'
_request post "${1}" "${data}"
}
-revoke_cert() {
- if [ -z "${CA_REVOKE_CERT}" ]; then
- echo " + ERROR: Certificate authority doesn't allow certificate revocation."
- exit 1
- fi
- cert="${1}"
- cert64="$(openssl x509 -in "${cert}" -inform PEM -outform DER | urlbase64)"
- response="$(signed_request "${CA_REVOKE_CERT}" '{"resource": "revoke-cert", "certificate": "'"${cert64}"'"}')"
- # if there is a problem with our revoke request _request (via signed_request) will report this and "exit 1" out
- # so if we are here, it is safe to assume the request was successful
- echo " + SUCCESS"
- echo " + renaming certificate to ${cert}-revoked"
- mv -f "${cert}" "${cert}-revoked"
-}
-
sign_domain() {
domain="${1}"
altnames="${*}"
+
echo " + Signing domains..."
if [[ -z "${CA_NEW_AUTHZ}" ]] || [[ -z "${CA_NEW_CERT}" ]]; then
echo " + ERROR: Certificate authority doesn't allow certificate signing"
done
rm -f "${WELLKNOWN}/${challenge_token}"
-
+
# Wait for hook script to clean the challenge if used
if [[ -n "${HOOK}" ]] && [[ -n "${challenge_token}" ]]; then
${HOOK} "clean_challenge" "${altname}" "${challenge_token}" "${keyauth}"
fi
-
+
if [[ "${status}" = "valid" ]]; then
echo " + Challenge is valid!"
else
}
-LOCKFILE="${BASEDIR}/lock"
-remove_lock() {
- if [[ -n "${LOCKFILE}" ]]; then
- rm -f "${LOCKFILE}"
- fi
-}
-trap 'remove_lock' EXIT
+# --cron / -c
+command_cron() {
+ # Generate certificates for all domains found in domains.txt. Check if existing certificate are about to expire
+ <"${DOMAINS_TXT}" sed 's/^\s*//g;s/\s*$//g' | grep -v '^#' | grep -v '^$' | while read -r line; do
+ domain="$(printf '%s\n' "${line}" | cut -d' ' -f1)"
+ cert="${BASEDIR}/certs/${domain}/cert.pem"
-# Use lock file to prevent concurrent access.
-set -o noclobber
-if ! { date > "${LOCKFILE}"; } 2>/dev/null; then
- echo " + ERROR: Lock file '${LOCKFILE}' present, aborting." >&2
- LOCKFILE= # so remove_lock doesn't remove it
- exit 1
-fi
-set +o noclobber
-
-
-# Get CA URLs
-CA_DIRECTORY="$(_request get "${CA}")"
-CA_NEW_CERT="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-cert)"
-CA_NEW_AUTHZ="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-authz)"
-CA_NEW_REG="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value new-reg)"
-CA_REVOKE_CERT="$(printf "%s" "${CA_DIRECTORY}" | get_json_string_value revoke-cert)"
-
-# Check if private key exists, if it doesn't exist yet generate a new one (rsa key)
-register="0"
-if [[ ! -e "${BASEDIR}/private_key.pem" ]]; then
- echo "+ Generating account key..."
- _openssl genrsa -out "${BASEDIR}/private_key.pem" "${KEYSIZE}"
- register="1"
-fi
+ echo "Processing ${domain}"
+ if [[ -e "${cert}" ]]; then
+ echo " + Found existing cert..."
-# Get public components from private key and calculate thumbprint
-pubExponent64="$(printf "%06x" "$(openssl rsa -in "${BASEDIR}/private_key.pem" -noout -text | grep publicExponent | head -1 | cut -d' ' -f2)" | hex2bin | urlbase64)"
-pubMod64="$(printf '%s' "$(openssl rsa -in "${BASEDIR}/private_key.pem" -noout -modulus | cut -d'=' -f2)" | hex2bin | urlbase64)"
+ valid="$(openssl x509 -enddate -noout -in "${cert}" | cut -d= -f2- )"
-thumbprint="$(printf '%s' "$(printf '%s' '{"e":"'"${pubExponent64}"'","kty":"RSA","n":"'"${pubMod64}"'"}' | shasum -a 256 | awk '{print $1}')" | hex2bin | urlbase64)"
+ echo -n " + Valid till ${valid} "
+ if openssl x509 -checkend $((RENEW_DAYS * 86400)) -noout -in "${cert}"; then
+ echo "(Longer than ${RENEW_DAYS} days). Skipping!"
+ continue
+ fi
+ echo "(Less than ${RENEW_DAYS} days). Renewing!"
+ fi
-# If we generated a new private key in the step above we have to register it with the acme-server
-if [[ "${register}" = "1" ]]; then
- echo "+ Registering account key with letsencrypt..."
- if [ -z "${CA_NEW_REG}" ]; then
- echo " + ERROR: Certificate authority doesn't allow registrations."
- exit 1
- fi
- # if an email for the contact has been provided then adding it to the registration request
- if [[ -n "${CONTACT_EMAIL}" ]]; then
- signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "contact":["mailto:'"${CONTACT_EMAIL}"'"], "agreement": "'"$LICENSE"'"}' > /dev/null
- else
- signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "agreement": "'"$LICENSE"'"}' > /dev/null
- fi
-fi
+ # shellcheck disable=SC2086
+ sign_domain $line
+ done
+}
-if [[ -e "${BASEDIR}/domains.txt" ]]; then
- DOMAINS_TXT="${BASEDIR}/domains.txt"
-elif [[ -e "${SCRIPTDIR}/domains.txt" ]]; then
- DOMAINS_TXT="${SCRIPTDIR}/domains.txt"
-else
- echo "You have to create a domains.txt file listing the domains you want certificates for. Have a look at domains.txt.example."
- exit 1
-fi
+# --sign / -s domain.tld
+command_sign() {
+ # Generate certificates for all domains found in domains.txt. Check if existing certificate are about to expire
+ <"${DOMAINS_TXT}" sed 's/^\s*//g;s/\s*$//g' | grep -E "^${1}($|\s)" | head -1 | while read -r line; do
+ domain="$(printf '%s\n' "${line}" | cut -d' ' -f1)"
+ cert="${BASEDIR}/certs/${domain}/cert.pem"
-if [[ ! -e "${WELLKNOWN}" ]]; then
- mkdir -p "${WELLKNOWN}"
-fi
+ echo "Processing ${domain}"
+ if [[ -e "${cert}" ]]; then
+ echo " + Found existing cert... ignoring."
+ fi
+
+ # shellcheck disable=SC2086
+ sign_domain $line
+ done || (echo "No entry for ${1} found in ${DOMAINS_TXT}."; exit 1)
+}
-# revoke certificate by user request
-if [[ "${1:-}" = "revoke" ]]; then
- if [[ -z "{2:-}" ]] || [[ ! -f "${2}" ]]; then
- echo "Usage: ${0} revoke path/to/cert.pem"
+# --revoke / -r path/to/cert.pem
+command_revoke() {
+ cert="${1}"
+ echo "Revoking ${cert}"
+ if [ -z "${CA_REVOKE_CERT}" ]; then
+ echo " + ERROR: Certificate authority doesn't allow certificate revocation."
exit 1
fi
+ cert64="$(openssl x509 -in "${cert}" -inform PEM -outform DER | urlbase64)"
+ response="$(signed_request "${CA_REVOKE_CERT}" '{"resource": "revoke-cert", "certificate": "'"${cert64}"'"}')"
+ # if there is a problem with our revoke request _request (via signed_request) will report this and "exit 1" out
+ # so if we are here, it is safe to assume the request was successful
+ echo " + SUCCESS"
+ echo " + renaming certificate to ${cert}-revoked"
+ mv -f "${cert}" "${cert}-revoked"
+}
- echo "Revoking ${2}"
- revoke_cert "${2}"
-
- exit 0
-fi
+# --help / -h
+command_help() {
+ echo "Usage: ${0} [-h] [[-c|-s|-r] [parameter]] [-p keyfile] [-f configfile]"
+ echo
+ echo "Mode:"
+ echo " --help (-h) show this help"
+ echo " --cron (-c) (default) cron-mode, renews all nearly expired or non-existing certificates found in domains.txt"
+ echo " --sign (-s) domain.tld force-sign a specific certificate using domains.txt entry"
+ echo " --revoke (-r) path/to/cert.pem revoke given certificate file (uses account key by default)"
+ echo " --privkey (-p) path/to/key.pem use given private key for specified command (useful for revocation)"
+ echo " --config (-f) path/to/config.sh use given config file"
+}
-# Generate certificates for all domains found in domains.txt. Check if existing certificate are about to expire
-<"${DOMAINS_TXT}" sed 's/^\s*//g;s/\s*$//g' | grep -v '^#' | grep -v '^$' | while read -r line; do
- domain="$(printf '%s\n' "${line}" | cut -d' ' -f1)"
- cert="${BASEDIR}/certs/${domain}/cert.pem"
+args=""
+# change long args to short args
+# inspired by http://kirk.webfinish.com/?p=45
+for arg; do
+ case "${arg}" in
+ --help) args="${args}-h ";;
+ --cron) args="${args}-c ";;
+ --sign) args="${args}-s ";;
+ --revoke) args="${args}-r ";;
+ --privkey) args="${args}-p ";;
+ --config) args="${args}-f ";;
+ --*)
+ echo "Unknown parameter detected: ${arg}"
+ echo
+ command_help
+ exit 1
+ ;;
+ # pass through anything else
+ *) args="${args}\"${arg}\" ";;
+ esac
+done
- echo "Processing ${domain}"
- if [[ -e "${cert}" ]]; then
- echo " + Found existing cert..."
+# Reset the positional parameters to the short options
+eval set -- $args
- valid="$(openssl x509 -enddate -noout -in "${cert}" | cut -d= -f2- )"
+COMMAND=""
+set_command() {
+ if [[ ! -z "${COMMAND}" ]]; then
+ echo "Only one command can be executed at a time."
+ echo "See help (-h) for more information."
+ exit 1
+ fi
+ COMMAND="${1}"
+}
- echo -n " + Valid till ${valid} "
- if openssl x509 -checkend $((RENEW_DAYS * 86400)) -noout -in "${cert}"; then
- echo "(Longer than ${RENEW_DAYS} days). Skipping!"
- continue
- fi
- echo "(Less than ${RENEW_DAYS} days). Renewing!"
+check_parameters() {
+ if [[ -z "${@}" ]]; then
+ echo "The specified command requires additional parameters. See help:"
+ echo
+ command_help
+ exit 1
fi
+}
- # shellcheck disable=SC2086
- sign_domain $line
+while getopts ":hcr:s:f:p:" option; do
+ case "${option}" in
+ h)
+ command_help
+ exit 0
+ ;;
+ c)
+ set_command cron
+ ;;
+ r)
+ set_command revoke
+ check_parameters "${OPTARG:-}"
+ revoke_me="${OPTARG}"
+ ;;
+ s)
+ set_command sign
+ check_parameters "${OPTARG:-}"
+ sign_me="${OPTARG}"
+ ;;
+ f)
+ check_parameters "${OPTARG:-}"
+ CONFIG="${OPTARG}"
+ ;;
+ p)
+ check_parameters "${OPTARG:-}"
+ USEPRIVATEKEY="${OPTARG}"
+ ;;
+ *)
+ echo "Unknown parameter detected: -${OPTARG}"
+ echo
+ command_help
+ exit 1
+ ;;
+ esac
done
+
+if [[ -z "${COMMAND}" ]]; then
+ COMMAND="cron"
+fi
+
+init_system
+
+case "${COMMAND}" in
+ cron)
+ command_cron
+ ;;
+ sign)
+ command_sign ${sign_me}
+ ;;
+ revoke)
+ command_revoke ${revoke_me}
+ ;;
+esac
projects / thirdparty / dehydrated.git / commitdiff
