# letsencrypt.sh by lukas2511
# Source: https://github.com/lukas2511/letsencrypt.sh
+#
+# This script is licensed under The MIT License (see LICENSE for more information).
set -e
set -u
# just execute some dummy and/or version commands to see if required tools exist and are actually usable
openssl version > /dev/null 2>&1 || _exiterr "This script requires an openssl binary."
_sed "" < /dev/null > /dev/null 2>&1 || _exiterr "This script requires sed with support for extended (modern) regular expressions."
- grep -V > /dev/null 2>&1 || _exiterr "This script requires grep."
+ command -v grep > /dev/null 2>&1 || _exiterr "This script requires grep."
mktemp -u -t XXXXXX > /dev/null 2>&1 || _exiterr "This script requires mktemp."
# curl returns with an error code in some ancient versions so we have to catch that
HOOK_CHAIN="no"
RENEW_DAYS="30"
PRIVATE_KEY=
+ PRIVATE_KEY_JSON=
KEYSIZE="4096"
WELLKNOWN=
PRIVATE_KEY_RENEW="no"
break
elif [[ -f "${check_config_d}" ]] && [[ -r "${check_config_d}" ]]; then
echo "# INFO: Using additional config file ${check_config_d}"
+ # shellcheck disable=SC1090
. "${check_config_d}"
else
_exiterr "Specified additional config ${check_config_d} is not readable or not a file at all." >&2
[[ -d "${BASEDIR}" ]] || _exiterr "BASEDIR does not exist: ${BASEDIR}"
[[ -z "${PRIVATE_KEY}" ]] && PRIVATE_KEY="${BASEDIR}/private_key.pem"
+ [[ -z "${PRIVATE_KEY_JSON}" ]] && PRIVATE_KEY_JSON="${BASEDIR}/private_key.json"
[[ -z "${WELLKNOWN}" ]] && WELLKNOWN="${BASEDIR}/.acme-challenges"
[[ -z "${LOCKFILE}" ]] && LOCKFILE="${BASEDIR}/lock"
openssl rsa -in "${PRIVATE_KEY}" -check 2>/dev/null > /dev/null || _exiterr "Private key is not valid, can not continue."
# 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)"
+ pubExponent64="$(printf '%x' "$(openssl rsa -in "${PRIVATE_KEY}" -noout -text | awk '/publicExponent/ {print $2}')" | hex2bin | urlbase64)"
pubMod64="$(openssl rsa -in "${PRIVATE_KEY}" -noout -modulus | cut -d'=' -f2 | hex2bin | urlbase64)"
thumbprint="$(printf '{"e":"%s","kty":"RSA","n":"%s"}' "${pubExponent64}" "${pubMod64}" | openssl dgst -sha256 -binary | urlbase64)"
[[ ! -z "${CA_NEW_REG}" ]] || _exiterr "Certificate authority doesn't allow registrations."
# If an email for the contact has been provided then adding it to the registration request
if [[ -n "${CONTACT_EMAIL}" ]]; then
- signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "contact":["mailto:'"${CONTACT_EMAIL}"'"], "agreement": "'"$LICENSE"'"}' > /dev/null
+ signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "contact":["mailto:'"${CONTACT_EMAIL}"'"], "agreement": "'"$LICENSE"'"}' > "${PRIVATE_KEY_JSON}"
else
- signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "agreement": "'"$LICENSE"'"}' > /dev/null
+ signed_request "${CA_NEW_REG}" '{"resource": "new-reg", "agreement": "'"$LICENSE"'"}' > "${PRIVATE_KEY_JSON}"
fi
fi
# Get string value from json dictionary
get_json_string_value() {
- grep -Eo '"'"${1}"'":[[:space:]]*"[^"]*"' | cut -d'"' -f4
+ local filter
+ filter=$(printf 's/.*"%s": *"\([^"]*\)".*/\\1/p' "$1")
+ sed -n "${filter}"
}
# OpenSSL writes to stderr/stdout even when there are no errors. So just
# SANs used, extract these
altnames="$( <<<"${reqtext}" grep -A1 '^[[:space:]]*X509v3 Subject Alternative Name:[[:space:]]*$' | tail -n1 )"
# split to one per line:
+ # shellcheck disable=SC1003
altnames="$( <<<"${altnames}" _sed -e 's/^[[:space:]]*//; s/, /\'$'\n''/g' )"
# we can only get DNS: ones signed
- if [ -n "$( <<<"${altnames}" grep -v '^DNS:' )" ]; then
+ if grep -qv '^DNS:' <<<"${altnames}"; then
_exiterr "Certificate signing request contains non-DNS Subject Alternative Names"
fi
# strip away the DNS: prefix
echo " + Requesting challenge for ${altname}..."
response="$(signed_request "${CA_NEW_AUTHZ}" '{"resource": "new-authz", "identifier": {"type": "dns", "value": "'"${altname}"'"}}')"
- challenges="$(printf '%s\n' "${response}" | grep -Eo '"challenges":[^\[]*\[[^]]*]')"
+ challenges="$(printf '%s\n' "${response}" | sed -n 's/.*\("challenges":[^\[]*\[[^]]*]\).*/\1/p')"
repl=$'\n''{' # fix syntax highlighting in Vim
challenge="$(printf "%s" "${challenges//\{/${repl}}" | grep \""${CHALLENGETYPE}"\")"
challenge_token="$(printf '%s' "${challenge}" | get_json_string_value token | _sed 's/[^A-Za-z0-9_\-]/_/g')"
done
# Wait for hook script to deploy the challenges if used
+ # shellcheck disable=SC2068
[[ -n "${HOOK}" ]] && [[ "${HOOK_CHAIN}" = "yes" ]] && "${HOOK}" "deploy_challenge" ${deploy_args[@]}
# Respond to challenges
keyauth="${keyauths[${idx}]}"
# Wait for hook script to deploy the challenge if used
+ # shellcheck disable=SC2086
[[ -n "${HOOK}" ]] && [[ "${HOOK_CHAIN}" != "yes" ]] && "${HOOK}" "deploy_challenge" ${deploy_args[${idx}]}
# Ask the acme-server to verify our challenge and wait until it is no longer pending
# Wait for hook script to clean the challenge if used
if [[ -n "${HOOK}" ]] && [[ "${HOOK_CHAIN}" != "yes" ]] && [[ -n "${challenge_token}" ]]; then
+ # shellcheck disable=SC2086
"${HOOK}" "clean_challenge" ${deploy_args[${idx}]}
fi
idx=$((idx+1))
done
# Wait for hook script to clean the challenges if used
+ # shellcheck disable=SC2068
[[ -n "${HOOK}" ]] && [[ "${HOOK_CHAIN}" = "yes" ]] && "${HOOK}" "clean_challenge" ${deploy_args[@]}
if [[ "${reqstatus}" != "valid" ]]; then
rm -f "${tmp_openssl_cnf}"
crt_path="${BASEDIR}/certs/${domain}/cert-${timestamp}.pem"
+ # shellcheck disable=SC2086
sign_csr "$(< "${BASEDIR}/certs/${domain}/cert-${timestamp}.csr" )" ${altnames} 3>"${crt_path}"
# Create fullchain.pem
# Generate certificates for all domains found in domains.txt. Check if existing certificate are about to expire
ORIGIFS="${IFS}"
IFS=$'\n'
- for line in $(cat "${DOMAINS_TXT}" | tr -d '\r' | _sed -e 's/^[[:space:]]*//g' -e 's/[[:space:]]*$//g' -e 's/[[:space:]]+/ /g' | (grep -vE '^(#|$)' || true)); do
+ for line in $(<"${DOMAINS_TXT}" tr -d '\r' | _sed -e 's/^[[:space:]]*//g' -e 's/[[:space:]]*$//g' -e 's/[[:space:]]+/ /g' | (grep -vE '^(#|$)' || true)); do
IFS="${ORIGIFS}"
domain="$(printf '%s\n' "${line}" | cut -d' ' -f1)"
morenames="$(printf '%s\n' "${line}" | cut -s -d' ' -f2-)"
if [[ "${force_renew}" = "yes" ]]; then
echo "Ignoring because renew was forced!"
else
- echo "Skipping!"
+ # Certificate-Names unchanged and cert is still valid
+ echo "Skipping renew!"
+ [[ -n "${HOOK}" ]] && "${HOOK}" "unchanged_cert" "${domain}" "${BASEDIR}/certs/${domain}/privkey.pem" "${BASEDIR}/certs/${domain}/cert.pem" "${BASEDIR}/certs/${domain}/fullchain.pem" "${BASEDIR}/certs/${domain}/chain.pem"
continue
fi
else
[[ -r "${certdir}/${filetype}" ]] || continue
# Look up current file in use
- current="$(basename $(readlink "${certdir}/${filetype}"))"
+ current="$(basename "$(readlink "${certdir}/${filetype}")")"
# Split filetype into name and extension
filebase="$(echo "${filetype}" | cut -d. -f1)"
# Check if current file is in use, if unused move to archive directory
filename="$(basename "${file}")"
if [[ ! "${filename}" = "${current}" ]]; then
- echo "Moving unused file to archive directory: ${certname}/$filename"
+ echo "Moving unused file to archive directory: ${certname}/${filename}"
mv "${certdir}/${filename}" "${archivedir}/${filename}"
fi
done
projects / andy / dehydrated.git / blobdiff