163 lines
3.1 KiB
Bash
Executable file
163 lines
3.1 KiB
Bash
Executable file
#!/usr/bin/env bash
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single=0 # merge the certs into a single cert
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force=0 # if to skip similariaty checks or not
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quiet=0 # should i shut up?!?!? :<
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cert='cert.pem' # where the public cert should go
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key='cert.key' # where the private cert should go
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domain='localhost' # the domain to copy certs from
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email="freya@freyacat.org"
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status=0
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usage() {
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printf "usage: recert [-hsfq] [-d DOMAIN] [-c CERT] [-k KEY]\n\n"
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printf "\t-h\t\tshow the help message\n"
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printf "\t-s\t\tcombine the certs into a single cert\n"
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printf "\t-f\t\tskip cert equal checks (force)\n"
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printf "\t-q\t\tquiet output\n"
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printf "\t-d DOMAIN\tthe domain name to recert\n"
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printf "\t-c CERT\t\tthe destination path for the cert\n"
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printf "\t-k KEY\t\tthe destination path for the key (no -s)\n"
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}
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hash() {
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if [ -f "$1" ]; then
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sha3sum "$1" | awk '{ print $1 }';
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fi
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}
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letscert() {
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args=(--non-interactive --agree-tos --no-eff-email --email "$email")
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certbot delete \
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$args \
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--cert-name "$domain"
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certbot certonly \
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$args \
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--preferred-chain "ISRG Root X1" \
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--key-type rsa \
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--webroot \
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--webroot-path "/var/www/html" \
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--domains "$1"
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status=1
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}
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recert_log() {
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if [ $quiet = 0 ]; then
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printf "$*" 1>&2
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fi
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}
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chk_command() {
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if ! command -v "$1" > /dev/null; then
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>&2 echo "error: command '$1' could not be found"
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exit 1
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fi
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}
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while getopts ":hsfqd:c:k:" arg > /dev/null; do
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case $arg in
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h)
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usage
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exit 0
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;;
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s)
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single=1
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;;
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f)
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force=1
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;;
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q)
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quiet=1
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;;
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d)
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domain=${OPTARG}
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;;
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c)
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cert=${OPTARG}
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;;
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k)
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key=${OPTARG}
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;;
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?)
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echo "unknown option"
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exit 1
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;;
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esac
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done
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chk_command "getopts"
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chk_command "certbot"
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chk_command "openssl"
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if [ ! "$cert" = "cert.pem" ] && [ "$key" = "cert.key" ]; then
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name=${cert%.*}
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key="$name.key"
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fi
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# Step 1: make sure letsencrypt certs exist (create if not)
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lets_root="/etc/letsencrypt/live"
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lets_cert="$lets_root/$domain/fullchain.pem"
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lets_key="$lets_root/$domain/privkey.pem"
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if [ ! -f "$lets_cert" ] && [ ! -f "$lets_key" ]; then
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letscert "$domain"
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fi
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# Step 2: make sure certs wont expire soon (create if will)
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if openssl x509 -checkend 604800 -noout -in "$lets_cert" > /dev/null; then
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# certificate is good, only update if forced
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if [ $force = 1 ]; then
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rm "$lets_root"/*
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rmdir "$lets_root"
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recert_log "renewing... "
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letscert "$domain"
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fi
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else
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recert_log "renewing... "
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letscert "$domain"
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fi
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# Step 3: store lets encrypt cert into tmp file
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tmp=$(mktemp)
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if [ $single = 1 ]; then
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{
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cat "$lets_cert";
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echo;
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cat "$lets_key";
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} >> "$tmp"
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fi
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# Setup 4: get hashes
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current_hash=""
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if [ -f "$cert" ]; then
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current_hash=$(md5sum "$lets_cert" | cut -f 1 -d " ")
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else
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current_hash="FORCE"
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fi
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new_hash=""
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if [ $single = 1 ]; then
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new_hash=$(md5sum "$tmp" | cut -f 1 -d " ")
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else
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new_hash=$(md5sum "$lets_cert" | cut -f 1 -d " ")
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fi
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# Step 5: copy if hases out of date
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if [ "$current_hash" != "$new_hash" ]; then
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recert_log "copied certs\n"
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if [ $single = 1 ]; then
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cp "$tmp" "$cert"
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else
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cp "$lets_cert" "$cert"
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cp "$lets_key" "$key"
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fi
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status=1
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else
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recert_log "up to date\n"
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fi
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# Cleanup
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rm "$tmp"
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exit "$status"
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