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 "${BASH_SOURCE[0]}" )" && pwd )"
+
+# directory for config, private key and certificates
+BASEDIR="${SCRIPTDIR}"
# Default config values
-CA="https://acme-v01.api.letsencrypt.org"
+CA="https://acme-v01.api.letsencrypt.org/directory"
LICENSE="https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf"
HOOK=
RENEW_DAYS="14"
+PRIVATE_KEY=
KEYSIZE="4096"
-WELLKNOWN=".acme-challenges"
-PRIVATE_KEY_RENEW=no
-SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-BASEDIR="${SCRIPTDIR}"
+WELLKNOWN=
+PRIVATE_KEY_RENEW="no"
OPENSSL_CNF="$(openssl version -d | cut -d'"' -f2)/openssl.cnf"
-ROOTCERT="lets-encrypt-x1-cross-signed.pem"
CONTACT_EMAIL=
-# If exists load config from same directory as this script
-if [[ -e "${BASEDIR}/config.sh" ]]; then
- # shellcheck disable=SC1090
- . "${BASEDIR}/config.sh"
-fi
+set_defaults() {
+ # Default config variables depending on BASEDIR
+ if [[ -z "${PRIVATE_KEY}" ]]; then
+ PRIVATE_KEY="${BASEDIR}/private_key.pem"
+ fi
+ if [[ -z "${WELLKNOWN}" ]]; then
+ WELLKNOWN="${BASEDIR}/.acme-challenges"
+ fi
-# Remove slash from end of BASEDIR. Mostly for cleaner outputs, doesn't change functionality.
-BASEDIR="${BASEDIR%%/}"
+ LOCKFILE="${BASEDIR}/lock"
+}
-umask 077 # paranoid umask, we're creating private keys
+init_system() {
+ # Check for config in various locations
+ if [[ -z "${CONFIG:-}" ]]; then
+ for check_config in "${HOME}/.letsencrypt.sh" "/etc/letsencrypt.sh" "/usr/local/etc/letsencrypt.sh" "${PWD}" "${SCRIPTDIR}"; do
+ if [[ -e "${check_config}/config.sh" ]]; then
+ BASEDIR="${check_config}"
+ CONFIG="${check_config}/config.sh"
+ break
+ fi
+ done
+ fi
+
+ if [[ -z "${CONFIG:-}" ]]; then
+ echo "WARNING: No config file found, using default config!" >&2
+ sleep 2
+ elif [[ -e "${CONFIG}" ]]; then
+ if [[ ! "${COMMAND}" = "env" ]]; then
+ echo "Using config file ${CONFIG}"
+ fi
+ BASEDIR="$(dirname "${CONFIG}")"
+ # shellcheck disable=SC1090
+ . "${CONFIG}"
+ else
+ echo "ERROR: Specified config file doesn't exist." >&2
+ exit 1
+ fi
+
+ # Remove slash from end of BASEDIR. Mostly for cleaner outputs, doesn't change functionality.
+ BASEDIR="${BASEDIR%%/}"
+
+ # Check BASEDIR and set default variables
+ if [[ ! -d "${BASEDIR}" ]]; then
+ echo "ERROR: BASEDIR does not exist: ${BASEDIR}" >&2
+ exit 1
+ fi
+ set_defaults
+
+ if [[ "${COMMAND}" = "env" ]]; then
+ return
+ fi
+
+ # Lockfile handling (prevents 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
+
+ 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)" &&
+ # shellcheck disable=SC2015
+ 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." >&2; exit 1)
+
+
+ # check private key ...
+ register="0"
+ if [[ -n "${PARAM_PRIVATE_KEY:-}" ]]; then
+ # a private key was specified from the command line so use it for this run
+ echo "Using private key ${PARAM_PRIVATE_KEY} instead of account key"
+ PRIVATE_KEY="${PARAM_PRIVATE_KEY}"
+ if ! openssl rsa -in "${PRIVATE_KEY}" -check 2>/dev/null > /dev/null; then
+ echo " + ERROR: private key is not valid, can not continue" >&2
+ exit 1
+ fi
+ else
+ # Check if private account key exists, if it doesn't exist yet generate a new one (rsa key)
+ if [[ ! -e "${PRIVATE_KEY}" ]]; then
+ echo "+ Generating account key..."
+ _openssl genrsa -out "${PRIVATE_KEY}" "${KEYSIZE}"
+ register="1"
+ fi
+ fi
-# Export some environment variables to be used in hook script
-export WELLKNOWN
-export BASEDIR
+ # Get public components from private key and calculate thumbprint
+ pubExponent64="$(printf "%06x" "$(openssl rsa -in "${PRIVATE_KEY}" -noout -text | grep publicExponent | head -1 | cut -d' ' -f2)" | hex2bin | urlbase64)"
+ pubMod64="$(printf '%s' "$(openssl rsa -in "${PRIVATE_KEY}" -noout -modulus | cut -d'=' -f2)" | hex2bin | urlbase64)"
+
+ thumbprint="$(printf '%s' '{"e":"'"${pubExponent64}"'","kty":"RSA","n":"'"${pubMod64}"'"}' | openssl sha -sha256 -binary | urlbase64)"
+
+ # If we generated a new private key in the step above we have to register it with the acme-server
+ if [[ "${register}" = "1" ]]; then
+ echo "+ Registering account key with letsencrypt..."
+ if [ -z "${CA_NEW_REG}" ]; then
+ echo " + ERROR: Certificate authority doesn't allow registrations." >&2
+ exit 1
+ fi
+ # if an email for the contact has been provided then adding it to the registration request
+ if [[ -n "${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": "'"$LICENSE"'"}' > /dev/null
+ fi
+ fi
+
+ if [[ -e "${BASEDIR}/domains.txt" ]]; then
+ DOMAINS_TXT="${BASEDIR}/domains.txt"
+ else
+ echo " + ERROR: domains.txt not found" >&2
+ exit 1
+ fi
+
+ if [[ ! -e "${WELLKNOWN}" ]]; then
+ echo " + ERROR: WELLKNOWN directory doesn't exist, please create ${WELLKNOWN} and set appropriate permissions." >&2
+ exit 1
+ fi
+}
anti_newline() {
tr -d '\n\r'
printf -- "${escapedhex}"
}
+get_json_string_value() {
+ grep -Eo '"'"${1}"'":[[:space:]]*"[^"]*"' | cut -d'"' -f4
+}
+
+get_json_array() {
+ grep -Eo '"'"${1}"'":[^\[]*\[[^]]*]'
+}
+
_request() {
tempcont="$(mktemp)"
fi
if [[ ! "${statuscode:0:1}" = "2" ]]; then
- echo " + ERROR: An error occured while sending ${1}-request to ${2} (Status ${statuscode})" >&2
+ echo " + ERROR: An error occurred while sending ${1}-request to ${2} (Status ${statuscode})" >&2
echo >&2
echo "Details:" >&2
echo "$(<"${tempcont}"))" >&2
rm -f "${tempcont}"
# Wait for hook script to clean the challenge if used
- if [[ -n "${HOOK}" ]]; then
- ${HOOK} "clean_challenge" "${challenge_token}" "${keyauth}"
+ if [[ -n "${HOOK}" ]] && [[ -n "${challenge_token:+set}" ]]; then
+ ${HOOK} "clean_challenge" '' "${challenge_token}" "${keyauth}"
+ fi
+
+ # remove temporary domains.txt file if used
+ if [[ -n "${PARAM_DOMAIN:-}" ]]; then
+ rm "${DOMAINS_TXT}"
fi
exit 1
fi
- cat "${tempcont}"
+ cat "${tempcont}"
rm -f "${tempcont}"
}
+# 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="$(openssl "${@}" 2>&1)"
+ res=$?
+ set -e
+ if [[ $res -ne 0 ]]; then
+ echo " + ERROR: failed to run $* (Exitcode: $res)" >&2
+ echo >&2
+ echo "Details:" >&2
+ echo "$out" >&2
+ exit $res
+ fi
+}
+
signed_request() {
# Encode payload as urlbase64
payload64="$(printf '%s' "${2}" | urlbase64)"
# Retrieve nonce from acme-server
- nonce="$(_request head "${CA}/directory" | grep Replay-Nonce: | awk -F ': ' '{print $2}' | anti_newline)"
+ nonce="$(_request head "${CA}" | grep Replay-Nonce: | awk -F ': ' '{print $2}' | anti_newline)"
# Build header with just our public key and algorithm information
header='{"alg": "RS256", "jwk": {"e": "'"${pubExponent64}"'", "kty": "RSA", "n": "'"${pubMod64}"'"}}'
protected64="$(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 "${PRIVATE_KEY}" | urlbase64)"
# Send header + extended header + payload + signature to the acme-server
data='{"header": '"${header}"', "protected": "'"${protected64}"'", "payload": "'"${payload64}"'", "signature": "'"${signed64}"'"}'
_request post "${1}" "${data}"
}
-revoke_cert() {
- cert="${1}"
- cert64="$(openssl x509 -in "${cert}" -inform PEM -outform DER | urlbase64)"
- response="$(signed_request "${CA}/acme/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="${*}"
- echo " + Signing domains..."
+ echo " + Signing domains..."
+ if [[ -z "${CA_NEW_AUTHZ}" ]] || [[ -z "${CA_NEW_CERT}" ]]; then
+ echo " + ERROR: Certificate authority doesn't allow certificate signing" >&2
+ exit 1
+ fi
timestamp="$(date +%s)"
# If there is no existing certificate directory => make it
if [[ ! -f "${BASEDIR}/certs/${domain}/privkey.pem" ]] || [[ "${PRIVATE_KEY_RENEW}" = "yes" ]]; then
echo " + Generating private key..."
privkey="privkey-${timestamp}.pem"
- openssl genrsa -out "${BASEDIR}/certs/${domain}/privkey-${timestamp}.pem" "${KEYSIZE}" 2> /dev/null > /dev/null
+ _openssl genrsa -out "${BASEDIR}/certs/${domain}/privkey-${timestamp}.pem" "${KEYSIZE}"
fi
# Generate signing request config and the actual signing request
done
SAN="${SAN%%, }"
echo " + Generating signing request..."
- openssl req -new -sha256 -key "${BASEDIR}/certs/${domain}/${privkey}" -out "${BASEDIR}/certs/${domain}/cert-${timestamp}.csr" -subj "/CN=${domain}/" -reqexts SAN -config <(cat "${OPENSSL_CNF}" <(printf "[SAN]\nsubjectAltName=%s" "${SAN}")) > /dev/null
+ openssl req -new -sha256 -key "${BASEDIR}/certs/${domain}/${privkey}" -out "${BASEDIR}/certs/${domain}/cert-${timestamp}.csr" -subj "/CN=${domain}/" -reqexts SAN -config <(cat "${OPENSSL_CNF}" <(printf "[SAN]\nsubjectAltName=%s" "${SAN}"))
# Request and respond to challenges
for altname in $altnames; do
# Ask the acme-server for new challenge token and extract them from the resulting json block
echo " + Requesting challenge for ${altname}..."
- response="$(signed_request "${CA}/acme/new-authz" '{"resource": "new-authz", "identifier": {"type": "dns", "value": "'"${altname}"'"}}')"
+ response="$(signed_request "${CA_NEW_AUTHZ}" '{"resource": "new-authz", "identifier": {"type": "dns", "value": "'"${altname}"'"}}')"
- challenges="$(printf '%s\n' "${response}" | grep -Eo '"challenges":[^\[]*\[[^]]*]')"
- challenge="$(printf "%s" "${challenges//\{/$'\n'{}" | grep 'http-01')"
- challenge_token="$(printf '%s' "${challenge}" | grep -Eo '"token":\s*"[^"]*"' | cut -d'"' -f4 | sed 's/[^A-Za-z0-9_\-]/_/g')"
- challenge_uri="$(printf '%s' "${challenge}" | grep -Eo '"uri":\s*"[^"]*"' | cut -d'"' -f4)"
+ challenges="$(printf '%s\n' "${response}" | get_json_array challenges)"
+ repl=$'\n''{' # fix syntax highlighting in Vim
+ challenge="$(printf "%s" "${challenges//\{/${repl}}" | grep 'http-01')"
+ challenge_token="$(printf '%s' "${challenge}" | get_json_string_value token | sed 's/[^A-Za-z0-9_\-]/_/g')"
+ challenge_uri="$(printf '%s' "${challenge}" | get_json_string_value uri)"
if [[ -z "${challenge_token}" ]] || [[ -z "${challenge_uri}" ]]; then
- echo " + Error: Can't retrieve challenges (${response})"
+ echo " + Error: Can't retrieve challenges (${response})" >&2
exit 1
fi
# Wait for hook script to deploy the challenge if used
if [[ -n "${HOOK}" ]]; then
- ${HOOK} "deploy_challenge" "${challenge_token}" "${keyauth}"
+ ${HOOK} "deploy_challenge" "${altname}" "${challenge_token}" "${keyauth}"
fi
# Ask the acme-server to verify our challenge and wait until it becomes valid
echo " + Responding to challenge for ${altname}..."
result="$(signed_request "${challenge_uri}" '{"resource": "challenge", "keyAuthorization": "'"${keyauth}"'"}')"
- status="$(printf '%s\n' "${result}" | grep -Eo '"status":\s*"[^"]*"' | cut -d'"' -f4)"
+ status="$(printf '%s\n' "${result}" | get_json_string_value status)"
- # get status until it a result is reached => not pending anymore
+ # get status until a result is reached => not pending anymore
while [[ "${status}" = "pending" ]]; do
sleep 1
- status="$(_request get "${challenge_uri}" | grep -Eo '"status":\s*"[^"]*"' | cut -d'"' -f4)"
+ status="$(_request get "${challenge_uri}" | get_json_string_value status)"
done
rm -f "${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
- echo " + Challenge is invalid! (returned: ${status})"
-
- # Wait for hook script to clean the challenge if used
- if [[ -n "${HOOK}" ]] && [[ -n "${challenge_token}" ]]; then
- ${HOOK} "clean_challenge" "${challenge_token}" "${keyauth}"
- fi
-
+ echo " + Challenge is invalid! (returned: ${status})" >&2
exit 1
fi
# Finally request certificate from the acme-server and store it in cert-${timestamp}.pem and link from cert.pem
echo " + Requesting certificate..."
csr64="$(openssl req -in "${BASEDIR}/certs/${domain}/cert-${timestamp}.csr" -outform DER | urlbase64)"
- crt64="$(signed_request "${CA}/acme/new-cert" '{"resource": "new-cert", "csr": "'"${csr64}"'"}' | openssl base64 -e)"
- printf -- '-----BEGIN CERTIFICATE-----\n%s\n-----END CERTIFICATE-----\n' "${crt64}" > "${BASEDIR}/certs/${domain}/cert-${timestamp}.pem"
+ crt64="$(signed_request "${CA_NEW_CERT}" '{"resource": "new-cert", "csr": "'"${csr64}"'"}' | openssl base64 -e)"
+ crt_path="${BASEDIR}/certs/${domain}/cert-${timestamp}.pem"
+ printf -- '-----BEGIN CERTIFICATE-----\n%s\n-----END CERTIFICATE-----\n' "${crt64}" > "${crt_path}"
+ # try to load the certificate to detect corruption
+ echo " + Checking certificate..." >&2
+ _openssl x509 -text < "${crt_path}"
# Create fullchain.pem
- if [[ -e "${BASEDIR}/certs/${ROOTCERT}" ]] || [[ -e "${SCRIPTDIR}/certs/${ROOTCERT}" ]]; then
- echo " + Creating fullchain.pem..."
- cat "${BASEDIR}/certs/${domain}/cert-${timestamp}.pem" > "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem"
- if [[ -e "${BASEDIR}/certs/${ROOTCERT}" ]]; then
- cat "${BASEDIR}/certs/${ROOTCERT}" >> "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem"
- else
- cat "${SCRIPTDIR}/certs/${ROOTCERT}" >> "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem"
- fi
- rm -f "${BASEDIR}/certs/${domain}/fullchain.pem"
- ln -s "fullchain-${timestamp}.pem" "${BASEDIR}/certs/${domain}/fullchain.pem"
- fi
+ echo " + Creating fullchain.pem..."
+ cat "${crt_path}" > "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem"
+ _request get "$(openssl x509 -in "${BASEDIR}/certs/${domain}/cert-${timestamp}.pem" -noout -text | grep 'CA Issuers - URI:' | cut -d':' -f2-)" >> "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem"
+ ln -sf "fullchain-${timestamp}.pem" "${BASEDIR}/certs/${domain}/fullchain.pem"
# Update remaining symlinks
if [ ! "${privkey}" = "privkey.pem" ]; then
- rm -f "${BASEDIR}/certs/${domain}/privkey.pem"
- ln -s "privkey-${timestamp}.pem" "${BASEDIR}/certs/${domain}/privkey.pem"
+ ln -sf "privkey-${timestamp}.pem" "${BASEDIR}/certs/${domain}/privkey.pem"
fi
- rm -f "${BASEDIR}/certs/${domain}/cert.csr"
- ln -s "cert-${timestamp}.csr" "${BASEDIR}/certs/${domain}/cert.csr"
-
- rm -f "${BASEDIR}/certs/${domain}/cert.pem"
- ln -s "cert-${timestamp}.pem" "${BASEDIR}/certs/${domain}/cert.pem"
+ ln -sf "cert-${timestamp}.csr" "${BASEDIR}/certs/${domain}/cert.csr"
+ ln -sf "cert-${timestamp}.pem" "${BASEDIR}/certs/${domain}/cert.pem"
# Wait for hook script to clean the challenge and to deploy cert if used
if [[ -n "${HOOK}" ]]; then
- ${HOOK} "deploy_cert" "${BASEDIR}/certs/${domain}/privkey.pem" "${BASEDIR}/certs/${domain}/cert.pem" "${BASEDIR}/certs/${domain}/fullchain.pem"
+ ${HOOK} "deploy_cert" "${domain}" "${BASEDIR}/certs/${domain}/privkey.pem" "${BASEDIR}/certs/${domain}/cert.pem" "${BASEDIR}/certs/${domain}/fullchain.pem"
fi
unset challenge_token
echo " + Done!"
}
-# 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" "${KEYSIZE}" 2> /dev/null > /dev/null
- register="1"
-fi
-
-# Get public components from private key and calculate thumbprint
-pubExponent64="$(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 "${BASEDIR}/private_key.pem" -noout -modulus | cut -d'=' -f2)" | hex2bin | urlbase64)"
-
-thumbprint="$(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 an email for the contact has been provided then adding it to the registration request
- if [ -n "${CONTACT_EMAIL}" ]; then
- signed_request "${CA}/acme/new-reg" '{"resource": "new-reg", "contact":["mailto:'"${CONTACT_EMAIL}"'"], "agreement": "'"$LICENSE"'"}' > /dev/null
- else
- signed_request "${CA}/acme/new-reg" '{"resource": "new-reg", "agreement": "'"$LICENSE"'"}' > /dev/null
+# Usage: --cron (-c)
+# Description: Sign/renew non-existant/changed(TODO)/expiring certificates.
+command_sign_domains() {
+ if [[ -n "${PARAM_DOMAIN:-}" ]]; then
+ # we are using a temporary domains.txt file so we don't need to duplicate any code
+ DOMAINS_TXT="$(mktemp)"
+ echo "${PARAM_DOMAIN}" > "${DOMAINS_TXT}"
fi
-fi
+ # Generate certificates for all domains found in domains.txt. Check if existing certificate are about to expire
+ <"${DOMAINS_TXT}" sed 's/^[[:space:]]*//g;s/[[:space:]]*$//g' | grep -vE '^(#|$)' | while read -r line; do
+ domain="$(printf '%s\n' "${line}" | cut -d' ' -f1)"
+ morenames="$(printf '%s\n' "${line}" | cut -s -d' ' -f2-)"
+ cert="${BASEDIR}/certs/${domain}/cert.pem"
+
+ if [[ -z "${morenames}" ]];then
+ echo "Processing ${domain}"
+ else
+ echo "Processing ${domain} with SAN: ${morenames}"
+ fi
-if [[ -e "${BASEDIR}/domains.txt" ]]; then
- DOMAINS_TXT="${BASEDIR}/domains.txt"
-elif [[ -e "${SCRIPTDIR}/domains.txt" ]]; then
- DOMAINS_TXT="${SCRIPTDIR}/domains.txt"
-else
- echo "You have to create a domains.txt file listing the domains you want certificates for. Have a look at domains.txt.example."
- exit 1
-fi
+ if [[ -e "${cert}" ]]; then
+ echo " + Found existing cert..."
+
+ valid="$(openssl x509 -enddate -noout -in "${cert}" | cut -d= -f2- )"
+
+ echo -n " + Valid till ${valid} "
+ if openssl x509 -checkend $((RENEW_DAYS * 86400)) -noout -in "${cert}"; then
+ echo -n "(Longer than ${RENEW_DAYS} days). "
+ if [[ "${PARAM_FORCE:-}" = "yes" ]]; then
+ echo "Ignoring because --force was specified!"
+ else
+ echo "Skipping!"
+ continue
+ fi
+ else
+ echo "(Less than ${RENEW_DAYS} days). Renewing!"
+ fi
+ fi
-if [[ ! -e "${WELLKNOWN}" ]]; then
- mkdir -p "${WELLKNOWN}"
-fi
+ # shellcheck disable=SC2086
+ sign_domain $line
+ done || true
+
+ # remove temporary domains.txt file if used
+ if [[ -n "${PARAM_DOMAIN:-}" ]]; then
+ rm "${DOMAINS_TXT}"
+ fi
+}
-# revoke certificate by user request
-if [[ "${1:-}" = "revoke" ]]; then
- if [[ -z "{2:-}" ]] || [[ ! -f "${2}" ]]; then
- echo "Usage: ${0} revoke path/to/cert.pem"
+# Usage: --revoke (-r) path/to/cert.pem
+# Description: Revoke specified certificate
+command_revoke() {
+ cert="${1}"
+ echo "Revoking ${cert}"
+ if [ -z "${CA_REVOKE_CERT}" ]; then
+ echo " + ERROR: Certificate authority doesn't allow certificate revocation." >&2
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}"
+# Usage: --help (-h)
+# Description: Show help text
+command_help() {
+ echo "Usage: ${0} [-h] [command [argument]] [parameter [argument]] [parameter [argument]] ..."
+ echo
+ echo "Default command: help"
+ echo
+ (
+ echo "Commands:"
+ grep -e '^[[:space:]]*# Usage:' -e '^[[:space:]]*# Description:' -e '^command_.*()[[:space:]]*{' "${0}" | while read -r usage; read -r description; read -r command; do
+ if [[ ! "${usage}" =~ Usage ]] || [[ ! "${description}" =~ Description ]] || [[ ! "${command}" =~ ^command_ ]]; then
+ echo "Error generating help text." >&2
+ exit 1
+ fi
+ printf " %s\t%s\n" "${usage##"# Usage: "}" "${description##"# Description: "}"
+ done
+ echo "---"
+ echo "Parameters:"
+ grep -E -e '^[[:space:]]*# PARAM_Usage:' -e '^[[:space:]]*# PARAM_Description:' "${0}" | while read -r usage; read -r description; do
+ if [[ ! "${usage}" =~ Usage ]] || [[ ! "${description}" =~ Description ]]; then
+ echo "Error generating help text." >&2
+ exit 1
+ fi
+ printf " %s\t%s\n" "${usage##"# PARAM_Usage: "}" "${description##"# PARAM_Description: "}"
+ done
+ ) | column -t -s $'\t' | sed 's/^---$//g'
+}
+# Usage: --env (-e)
+# Description: Output configuration variables for use in other scripts
+command_env() {
+ echo "# letsencrypt.sh configuration"
+ typeset -p CONFIG
+ typeset -p CA LICENSE BASEDIR WELLKNOWN PRIVATE_KEY KEYSIZE OPENSSL_CNF HOOK RENEW_DAYS PRIVATE_KEY_RENEW CONTACT_EMAIL
exit 0
-fi
+}
-# 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 '^$' | while read -r line; do
- domain="$(echo "${line}" | cut -d' ' -f1)"
- cert="${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 ";;
+ --domain) args="${args}-d ";;
+ --force ) args="${args}-x ";;
+ --revoke) args="${args}-r ";;
+ --privkey) args="${args}-p ";;
+ --config) args="${args}-f ";;
+ --env) args="${args}-e ";;
+ --*)
+ echo "Unknown parameter detected: ${arg}" >&2
+ echo >&2
+ command_help >&2
+ exit 1
+ ;;
+ # pass through anything else
+ *) args="${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}"
- # Turning off exit on non-zero status for cert validation
- set +e; openssl x509 -checkend $((RENEW_DAYS * 86400)) -noout -in "${cert}"; expiring=$?; set -e
- valid="$(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." >&2
+ echo "See help (-h) for more information." >&2
+ exit 1
+ fi
+ COMMAND="${1}"
+}
- echo -n " + Valid till ${valid} "
- if [[ ${expiring} -eq 0 ]]; 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:" >&2
+ echo >&2
+ command_help >&2
+ exit 1
fi
+}
- # shellcheck disable=SC2086
- sign_domain $line
+while getopts ":hcer:d:xf:p:" option; do
+ case "${option}" in
+ h)
+ command_help
+ exit 0
+ ;;
+ c)
+ set_command sign_domains
+ ;;
+ e)
+ set_command env
+ ;;
+ r)
+ set_command revoke
+ check_parameters "${OPTARG:-}"
+ revoke_me="${OPTARG}"
+ ;;
+ d)
+ # PARAM_Usage: --domain (-d) domain.tld
+ # PARAM_Description: Use specified domain name instead of domains.txt, use multiple times for certificate with SAN names
+ check_parameters "${OPTARG:-}"
+ set_command sign_domains
+ if [[ -z "${PARAM_DOMAIN:-}" ]]; then
+ PARAM_DOMAIN="${OPTARG}"
+ else
+ PARAM_DOMAIN="${PARAM_DOMAIN} ${OPTARG}"
+ fi
+ ;;
+ x)
+ # PARAM_Usage: --force (-x)
+ # PARAM_Description: force renew of certificate even if it is longer valid than value in RENEW_DAYS
+ PARAM_FORCE="yes"
+ ;;
+ f)
+ # PARAM_Usage: --config (-f) path/to/config.sh
+ # PARAM_Description: Use specified config file
+ check_parameters "${OPTARG:-}"
+ CONFIG="${OPTARG}"
+ ;;
+ p)
+ # PARAM_Usage: --privkey (-p) path/to/key.pem
+ # PARAM_Description: Use specified private key instead of account key (useful for revocation)
+ check_parameters "${OPTARG:-}"
+ PARAM_PRIVATE_KEY="${OPTARG}"
+ ;;
+ *)
+ echo "Unknown parameter detected: -${OPTARG}" >&2
+ echo >&2
+ command_help >&2
+ exit 1
+ ;;
+ esac
done
+
+if [[ -z "${COMMAND}" ]]; then
+ command_help
+ exit 1
+fi
+
+init_system
+
+case "${COMMAND}" in
+ sign_domains)
+ command_sign_domains
+ ;;
+ env)
+ command_env
+ ;;
+ revoke)
+ command_revoke "${revoke_me}"
+ ;;
+esac
projects / andy / dehydrated.git / blobdiff