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Store keys and certs in $BASEDIR

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This commit is contained in:
Andrey Jr. Melnikov
2015-12-06 20:58:53 +03:00
committed by Lukas Schauer
parent 579e231631
commit 5b29db9755
1 changed files with 20 additions and 19 deletions
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39
letsencrypt.sh
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@@ -12,6 +12,7 @@ RENEW_DAYS="14"
KEYSIZE="4096"
WELLKNOWN=".acme-challenges"
PRIVATE_KEY_RENEW=no
BASEDIR="./"
if [[ -e "config.sh" ]]; then
. ./config.sh
@@ -90,7 +91,7 @@ signed_request() {
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 "${BASEDIR}/private_key.pem" | urlbase64)"
# Send header + extended header + payload + signature to the acme-server
data='{"header": '"${header}"', "protected": "'"${protected64}"'", "payload": "'"${payload64}"'", "signature": "'"${signed64}"'"}'
@@ -104,18 +105,18 @@ sign_domain() {
echo " + Signing domains..."
# If there is no existing certificate directory => make it
if [[ ! -e "certs/${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
# generate a new private key if we need or want one
if [[ ! -f "certs/${domain}/privkey.pem" ]] || [[ "${PRIVATE_KEY_RENEW}" = "yes" ]]; then
if [[ ! -f "${BASEDIR}/certs/${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"
openssl genrsa -out "${BASEDIR}/certs/${domain}/privkey-${timestamp}.pem" "${KEYSIZE}" 2> /dev/null > /dev/null
rm -f "${BASEDIR}/certs/${domain}/privkey.pem"
ln -s "privkey-${timestamp}.pem" "${BASEDIR}/certs/${domain}/privkey.pem"
fi
# Generate signing request config and the actual signing request
@@ -125,7 +126,7 @@ sign_domain() {
done
SAN="$(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
openssl req -new -sha256 -key "${BASEDIR}/certs/${domain}/privkey.pem" -out "${BASEDIR}/certs/${domain}/cert.csr" -subj "/CN=${domain}/" -reqexts SAN -config <(cat /etc/ssl/openssl.cnf <(printf "[SAN]\nsubjectAltName=%s" "${SAN}")) > /dev/null
# Request and respond to challenges
for altname in $altnames; do
@@ -177,25 +178,25 @@ sign_domain() {
# Finally request certificate from the acme-server and store it in cert-${timestamp}.pem and link from cert.pem
echo " + Requesting certificate..."
timestamp="$(date +%s)"
csr64="$(openssl req -in "certs/${domain}/cert.csr" -outform DER | urlbase64)"
csr64="$(openssl req -in "${BASEDIR}/certs/${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/${domain}/cert.pem"
printf -- '-----BEGIN CERTIFICATE-----\n%s\n-----END CERTIFICATE-----\n' "${crt64}" > "${BASEDIR}/certs/${domain}/cert-${timestamp}.pem"
rm -f "${BASEDIR}/certs/${domain}/cert.pem"
ln -s "cert-${timestamp}.pem" "${BASEDIR}/certs/${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
if [[ ! -e "${BASEDIR}/private_key.pem" ]]; then
echo "+ Generating account key..."
openssl genrsa -out "private_key.pem" "${KEYSIZE}" 2> /dev/null > /dev/null
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 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)"
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 $1}')" | hex2bin | urlbase64)"
@@ -217,7 +218,7 @@ fi
# Generate certificates for all domains found in domain.txt. Check if existing certificate are about to expire
<domains.txt sed 's/^\s*//g;s/\s*$//g' | grep -v '^#' | grep -v '^$' | while read -r line; do
domain="$(echo $line | cut -d' ' -f1)"
cert="certs/${domain}/cert.pem"
cert="${BASEDIR}/certs/${domain}/cert.pem"
echo "Processing ${domain}"
if [[ -e "${cert}" ]]; then
@@ -225,7 +226,7 @@ fi
# 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="$(openssl x509 -enddate -noout -in "certs/${domain}/cert.pem" | cut -d= -f2- )"
valid="$(openssl x509 -enddate -noout -in "${cert}" | cut -d= -f2- )"
echo -n " + Valid till ${valid} "
if [[ ${expiring} -eq 0 ]]; then