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 "${BASH_SOURCE[0]}" )" && pwd )"
-# default config values
-CA="https://acme-v01.api.letsencrypt.org"
+# directory for config, private key and certificates
+BASEDIR="${SCRIPTDIR}"
+
+# Default config values
+CA="https://acme-v01.api.letsencrypt.org/directory"
LICENSE="https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf"
-HOOK_CHALLENGE=
-RENEW_DAYS="14"
+HOOK=
+RENEW_DAYS="30"
+PRIVATE_KEY=
KEYSIZE="4096"
-WELLKNOWN=".acme-challenges"
-PRIVATE_KEY_RENEW=no
+WELLKNOWN=
+PRIVATE_KEY_RENEW="no"
+OPENSSL_CNF="$(openssl version -d | cut -d'"' -f2)/openssl.cnf"
+CONTACT_EMAIL=
+
+set_defaults() {
+ # Default config variables depending on BASEDIR
+ if [[ -z "${PRIVATE_KEY}" ]]; then
+ PRIVATE_KEY="${BASEDIR}/private_key.pem"
+ fi
+ if [[ -z "${WELLKNOWN}" ]]; then
+ WELLKNOWN="${BASEDIR}/.acme-challenges"
+ fi
-if [[ -e "config.sh" ]]; then
- . ./config.sh
-fi
+ LOCKFILE="${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="$(http_request get "${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
+
+ # Get public components from private key and calculate thumbprint
+ pubExponent64="$(openssl rsa -in "${PRIVATE_KEY}" -noout -text | grep publicExponent | grep -oE "0x[a-f0-9]+" | cut -d'x' -f2 | hex2bin | urlbase64)"
+ pubMod64="$(openssl rsa -in "${PRIVATE_KEY}" -noout -modulus | cut -d'=' -f2 | hex2bin | urlbase64)"
+
+ thumbprint="$(printf '{"e":"%s","kty":"RSA","n":"%s"}' "${pubExponent64}" "${pubMod64}" | openssl sha -sha256 -binary | urlbase64)"
+
+ # If we generated a new private key in the step above we have to register it with the acme-server
+ if [[ "${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 ${WELLKNOWN} and set appropriate permissions." >&2
+ exit 1
+ fi
+}
anti_newline() {
tr -d '\n\r'
urlbase64() {
# urlbase64: base64 encoded string with '+' replaced with '-' and '/' replaced with '_'
- openssl base64 -e | anti_newline | sed -r 's/=*$//g' | tr '+/' '-_'
+ openssl base64 -e | anti_newline | sed 's/=*$//g' | tr '+/' '-_'
}
hex2bin() {
done
# Convert to binary data
- printf "${escapedhex}"
+ printf -- "${escapedhex}"
+}
+
+get_json_string_value() {
+ grep -Eo '"'"${1}"'":[[:space:]]*"[^"]*"' | cut -d'"' -f4
}
-_request() {
- temperr="$(mktemp)"
+get_json_array() {
+ grep -Eo '"'"${1}"'":[^\[]*\[[^]]*]'
+}
+
+http_request() {
+ tempcont="$(mktemp)"
+
if [[ "${1}" = "head" ]]; then
- curl -sSf -I "${2}" 2> "${temperr}"
+ statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}" -I)"
elif [[ "${1}" = "get" ]]; then
- curl -sSf "${2}" 2> "${temperr}"
+ statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}")"
elif [[ "${1}" = "post" ]]; then
- curl -sSf "${2}" -d "${3}" 2> "${temperr}"
+ statuscode="$(curl -s -w "%{http_code}" -o "${tempcont}" "${2}" -d "${3}")"
fi
- if [[ -s "${temperr}" ]]; then
- echo " + ERROR: An error occured while sending ${1}-request to ${2} ($(<"${temperr}"))" >&2
- rm -f "${temperr}"
+ if [[ ! "${statuscode:0:1}" = "2" ]]; then
+ echo " + ERROR: An error occurred while sending ${1}-request to ${2} (Status ${statuscode})" >&2
+ echo >&2
+ echo "Details:" >&2
+ cat "${tempcont}" >&2
+ rm -f "${tempcont}"
+
+ # Wait for hook script to clean the challenge if used
+ if [[ -n "${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 "${DOMAINS_TXT}"
+ fi
+
exit 1
fi
- rm -f "${temperr}"
+ 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 $res
+ fi
}
signed_request() {
payload64="$(printf '%s' "${2}" | urlbase64)"
# Retrieve nonce from acme-server
- nonce="$(_request head "${CA}/directory" | grep Replay-Nonce: | awk -F ': ' '{print $2}' | anti_newline)"
+ nonce="$(http_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 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}"
+ http_request post "${1}" "${data}"
}
sign_domain() {
domain="${1}"
altnames="${*}"
- echo "Signing domain ${1} (${*})..."
+
+ 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="$(date +%s)"
# If there is no existing certificate directory => make it
- if [[ ! -e "certs/${domain}" ]]; then
- echo " + make directory certs/${domain} ..."
- mkdir -p "certs/${domain}"
+ if [[ ! -e "${BASEDIR}/certs/${domain}" ]]; then
+ echo " + make directory ${BASEDIR}/certs/${domain} ..."
+ mkdir -p "${BASEDIR}/certs/${domain}"
fi
+ privkey="privkey.pem"
# generate a new private key if we need or want one
- if [[ ! -f "certs/${domain}/privkey.pem" ]] || [[ "${PRIVATE_KEY_RENEW}" = "yes" ]]; then
- echo " + Generating private key..."
- timestamp="$(date +%s)"
- openssl genrsa -out "certs/${domain}/privkey-${timestamp}.pem" "${KEYSIZE}" 2> /dev/null > /dev/null
- rm -f "certs/${domain}/privkey.pem"
- ln -s "privkey-${timestamp}.pem" "certs/${domain}/privkey.pem"
+ if [[ ! -f "${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}"
fi
# Generate signing request config and the actual signing request
for altname in $altnames; do
SAN+="DNS:${altname}, "
done
- SAN="$(printf '%s' "${SAN}" | sed 's/,\s*$//g')"
- echo " + Generating signing request..."
- openssl req -new -sha256 -key "certs/${domain}/privkey.pem" -out "certs/${domain}/cert.csr" -subj "/CN=${domain}/" -reqexts SAN -config <(cat /etc/ssl/openssl.cnf <(printf "[SAN]\nsubjectAltName=%s" "${SAN}")) > /dev/null
+ SAN="${SAN%%, }"
+ echo " + Generating signing request..."
+ local tmp_openssl_cnf
+ tmp_openssl_cnf="$(mktemp)"
+ cat "${OPENSSL_CNF}" > "${tmp_openssl_cnf}"
+ printf "[SAN]\nsubjectAltName=%s" "${SAN}" >> "${tmp_openssl_cnf}"
+ openssl req -new -sha256 -key "${BASEDIR}/certs/${domain}/${privkey}" -out "${BASEDIR}/certs/${domain}/cert-${timestamp}.csr" -subj "/CN=${domain}/" -reqexts SAN -config "${tmp_openssl_cnf}"
+ rm -f "${tmp_openssl_cnf}"
# 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}"'"}}')"
+ echo " + Requesting challenge for ${altname}..."
+ response="$(signed_request "${CA_NEW_AUTHZ}" '{"resource": "new-authz", "identifier": {"type": "dns", "value": "'"${altname}"'"}}')"
- challenge_token="$(printf '%s\n' "${response}" | grep -Eo '"challenges":[^\[]*\[[^]]*]' | sed 's/{/\n{/g' | grep 'http-01' | grep -Eo '"token":\s*"[^"]*"' | cut -d'"' -f4 | sed 's/[^A-Za-z0-9_\-]/_/g')"
- challenge_uri="$(printf '%s\n' "${response}" | grep -Eo '"challenges":[^\[]*\[[^]]*]' | sed 's/{/\n{/g' | grep 'http-01' | 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
chmod a+r "${WELLKNOWN}/${challenge_token}"
# Wait for hook script to deploy the challenge if used
- if [ -n "${HOOK_CHALLENGE}" ]; then
- ${HOOK_CHALLENGE} "${WELLKNOWN}/${challenge_token}" "${keyauth}"
+ if [[ -n "${HOOK}" ]]; then
+ ${HOOK} "deploy_challenge" "${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}..."
+ 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 "${challenge_uri}" | grep -Eo '"status":\s*"[^"]*"' | cut -d'"' -f4)"
+ status="$(http_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!"
+ echo " + Challenge is valid!"
else
- echo " + Challenge is invalid! (returned: ${status})"
+ echo " + Challenge is invalid! (returned: ${status})" >&2
exit 1
fi
done
# Finally request certificate from the acme-server and store it in cert-${timestamp}.pem and link from cert.pem
- echo " + Requesting certificate..."
- timestamp="$(date +%s)"
- csr64="$(openssl req -in "certs/${domain}/cert.csr" -outform DER | urlbase64)"
- crt64="$(signed_request "${CA}/acme/new-cert" '{"resource": "new-cert", "csr": "'"${csr64}"'"}' | openssl base64 -e)"
- printf -- '-----BEGIN CERTIFICATE-----\n%s\n-----END CERTIFICATE-----\n' "${crt64}" > "certs/${domain}/cert-${timestamp}.pem"
- rm -f "certs/${domain}/cert.pem"
- ln -s "cert-${timestamp}.pem" "certs/${domain}/cert.pem"
- echo " + Done!"
-}
-
-# Check if private key exists, if it doesn't exist yet generate a new one (rsa key)
-register="0"
-if [[ ! -e "private_key.pem" ]]; then
- echo "+ Generating account key..."
- openssl genrsa -out "private_key.pem" "${KEYSIZE}" 2> /dev/null > /dev/null
- register="1"
-fi
+ echo " + Requesting certificate..."
+ csr64="$(openssl req -in "${BASEDIR}/certs/${domain}/cert-${timestamp}.csr" -outform DER | urlbase64)"
+ crt64="$(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}" > "${crt_path}"
+ # try to load the certificate to detect corruption
+ echo " + Checking certificate..."
+ _openssl x509 -text < "${crt_path}"
+
+ # Create fullchain.pem
+ echo " + Creating fullchain.pem..."
+ cat "${crt_path}" > "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem"
+ http_request get "$(openssl x509 -in "${BASEDIR}/certs/${domain}/cert-${timestamp}.pem" -noout -text | grep 'CA Issuers - URI:' | cut -d':' -f2-)" > "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem"
+ if ! grep "BEGIN CERTIFICATE" "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" > /dev/null 2>&1; then
+ openssl x509 -in "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" -inform DER -out "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" -outform PEM
+ fi
+ ln -sf "chain-${timestamp}.pem" "${BASEDIR}/certs/${domain}/chain.pem"
+ cat "${BASEDIR}/certs/${domain}/chain-${timestamp}.pem" >> "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem"
+ ln -sf "fullchain-${timestamp}.pem" "${BASEDIR}/certs/${domain}/fullchain.pem"
-# Get public components from private key and calculate thumbprint
-pubExponent64="$(printf "%06x" "$(openssl rsa -in private_key.pem -noout -text | grep publicExponent | head -1 | cut -d' ' -f2)" | hex2bin | urlbase64)"
-pubMod64="$(printf '%s' "$(openssl rsa -in private_key.pem -noout -modulus | cut -d'=' -f2)" | hex2bin | urlbase64)"
+ # Update remaining symlinks
+ if [ ! "${privkey}" = "privkey.pem" ]; then
+ ln -sf "privkey-${timestamp}.pem" "${BASEDIR}/certs/${domain}/privkey.pem"
+ fi
-thumbprint="$(printf '%s' "$(printf '%s' '{"e":"'"${pubExponent64}"'","kty":"RSA","n":"'"${pubMod64}"'"}' | shasum -a 256 | awk '{print $1}')" | hex2bin | urlbase64)"
+ ln -sf "cert-${timestamp}.csr" "${BASEDIR}/certs/${domain}/cert.csr"
+ ln -sf "cert-${timestamp}.pem" "${BASEDIR}/certs/${domain}/cert.pem"
-# If we generated a new private key in the step above we have to register it with the acme-server
-if [[ "${register}" = "1" ]]; then
- echo "+ Registering account key with letsencrypt..."
- signed_request "${CA}/acme/new-reg" '{"resource": "new-reg", "agreement": "'"$LICENSE"'"}' > /dev/null
-fi
+ # Wait for hook script to clean the challenge and to deploy cert if used
+ if [[ -n "${HOOK}" ]]; then
+ ${HOOK} "deploy_cert" "${domain}" "${BASEDIR}/certs/${domain}/privkey.pem" "${BASEDIR}/certs/${domain}/cert.pem" "${BASEDIR}/certs/${domain}/fullchain.pem"
+ fi
-if [[ ! -e "domains.txt" ]]; then
- 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
+ unset challenge_token
+ echo " + Done!"
+}
-if [[ ! -e "${WELLKNOWN}" ]]; then
- mkdir -p "${WELLKNOWN}"
-fi
-# Generate certificates for all domains found in domain.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 $line | cut -d' ' -f1)"
- if [[ -e "certs/${domain}/cert.pem" ]]; then
- echo -n "Found existing cert for ${domain}. Expire date ..."
- set +e; openssl x509 -checkend $((${RENEW_DAYS} * 86400)) -noout -in "certs/${domain}/cert.pem"; expiring=$?; set -e
- if [[ ${expiring} -eq 0 ]]; then
- echo " is not within ${RENEW_DAYS} days. Skipping"
- continue
+# Usage: --cron (-c)
+# Description: Sign/renew non-existant/changed/expiring certificates.
+command_sign_domains() {
+ if [[ -n "${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}" > "${DOMAINS_TXT}"
+ fi
+ # Generate certificates for all domains found in domains.txt. Check if existing certificate are about to expire
+ <"${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"
+
+ force_renew="${PARAM_FORCE:-no}"
+
+ if [[ -z "${morenames}" ]];then
+ echo "Processing ${domain}"
+ else
+ echo "Processing ${domain} with SAN: ${morenames}"
+ fi
+
+ if [[ -e "${cert}" ]]; then
+ echo -n " + Checking domain name(s) of existing cert..."
+
+ certnames="$(openssl x509 -in "${cert}" -text -noout | grep DNS: | sed 's/DNS://g' | tr -d ' ' | tr ',' '\n' | sort -u | tr '\n' ' ' | sed 's/ $//')"
+ givennames="$(echo "${domain}" "${morenames}"| tr ' ' '\n' | sort -u | tr '\n' ' ' | sed 's/ $//' | sed 's/^ //')"
+
+ if [[ "${certnames}" = "${givennames}" ]]; then
+ echo " unchanged."
+ else
+ echo " changed!"
+ echo " + Domain name(s) are not matching!"
+ echo " + Names in old certificate: ${certnames}"
+ echo " + Configured names: ${givennames}"
+ echo " + Forcing renew."
+ force_renew="yes"
+ fi
+ fi
+
+ if [[ -e "${cert}" ]]; then
+ echo " + Checking expire date of 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 ${RENEW_DAYS} days). "
+ if [[ "${force_renew}" = "yes" ]]; then
+ echo "Ignoring because renew was forced!"
+ else
+ echo "Skipping!"
+ continue
+ fi
+ else
+ echo "(Less than ${RENEW_DAYS} days). Renewing!"
+ fi
+ fi
+
+ # shellcheck disable=SC2086
+ sign_domain $line
+ done || true
+
+ # remove temporary domains.txt file if used
+ if [[ -n "${PARAM_DOMAIN:-}" ]]; then
+ rm -f "${DOMAINS_TXT}"
+ fi
+}
+
+# Usage: --revoke (-r) path/to/cert.pem
+# Description: Revoke specified certificate
+command_revoke() {
+ cert="${1}"
+ if [[ -L "${cert}" ]]; then
+ # follow symlink and use real certificate name (so we move the real file and not the symlink at the end)
+ local link_target
+ link_target="$(readlink -n "${cert}")"
+ if [[ "${link_target}" =~ ^/ ]]; then
+ cert="${link_target}"
+ else
+ cert="$(dirname "${cert}")/${link_target}"
+ fi
+ fi
+ if [[ ! -f "${cert}" ]]; then
+ echo "ERROR: Could not find certificate ${cert}"
+ exit 1
+ fi
+ 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 http_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"
+}
+
+# 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
- echo " is within ${RENEW_DAYS} days. Renewing..."
+ printf " %s\t%s\n" "${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
+}
+
+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}\"${arg}\" ";;
+ esac
+done
+
+# Reset the positional parameters to the short options
+eval set -- "${args}"
+
+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}"
+}
- sign_domain $line
+check_parameters() {
+ if [[ -z "${@}" ]]; then
+ echo "The specified command requires additional parameters. See help:" >&2
+ echo >&2
+ command_help >&2
+ exit 1
+ fi
+}
+
+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:-}"
+ 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