91 lines
1.9 KiB
Bash
91 lines
1.9 KiB
Bash
#!/bin/bash
|
|
|
|
# must be root
|
|
if [ "$USER" != "root" ]; then
|
|
exec sudo $0
|
|
fi
|
|
|
|
help()
|
|
{
|
|
thisfilename=$(basename -- "$0")
|
|
echo "$thisfilename"
|
|
echo "Create a Let's Encrypt certificate."
|
|
echo ""
|
|
echo "Usage: $thisfilename domain [OPTIONS]"
|
|
echo ""
|
|
echo " -h Print this help."
|
|
echo " -n Dry Run - don't create cert, just echo command to run."
|
|
exit
|
|
}
|
|
|
|
# check for and set domain
|
|
if [ -n "$1" ]; then
|
|
if [ $1 == "-h" ]; then
|
|
help
|
|
else
|
|
domain=$1
|
|
shift
|
|
# basic but good enough domain name regex validation
|
|
if [[ ! $domain =~ ^(([a-zA-Z](-?[a-zA-Z0-9])*)\.)+[a-zA-Z]{2,}$ ]] ; then
|
|
echo "ERROR: Invalid domain name: $1"
|
|
exit 1
|
|
fi
|
|
fi
|
|
else
|
|
help
|
|
fi
|
|
|
|
# set any options that were passed
|
|
while getopts "hn" opt; do
|
|
case "${opt}" in
|
|
h )
|
|
help
|
|
exit;;
|
|
n )
|
|
dryrun=true
|
|
;;
|
|
\? )
|
|
echo "Invalid option: $OPTARG" 1>&2
|
|
exit;;
|
|
: )
|
|
echo "Invalid option: $OPTARG requires an argument" 1>&2
|
|
exit;;
|
|
esac
|
|
done
|
|
|
|
# set vars
|
|
command="certbot certonly --cert-name $domain"
|
|
dnscheck=false
|
|
ips=(`ip -4 -o addr show | awk '{ print $4 }' | cut -d / -f 1`)
|
|
|
|
# check dns for domain
|
|
dns=`host -t A $domain|grep 'has address'|awk '{ print $4 }'`
|
|
if [[ " ${ips[@]} " =~ " ${dns} " ]]; then
|
|
command="$command -d $domain"
|
|
dnscheck=true
|
|
fi
|
|
|
|
# check dns for www subdomain
|
|
dns=`host -t A www.$domain|grep 'has address'|awk '{ print $4 }'`
|
|
if [[ " ${ips[@]} " =~ " ${dns} " ]]; then
|
|
command="$command -d www.$domain"
|
|
dnscheck=true
|
|
fi
|
|
|
|
# copy above www subdomain section and modify as desired to
|
|
# automatically check for and add additional subdomains to cert
|
|
|
|
# check if any of the dns lookups passed
|
|
if [[ "$dnscheck" = "false" ]]; then
|
|
echo "All dns checks failed, can't create cert."
|
|
exit 1
|
|
fi
|
|
|
|
# run (or display) command
|
|
if [[ "$dryrun" = "true" ]]; then
|
|
echo "Run this command to create cert:"
|
|
echo "$command"
|
|
else
|
|
$command
|
|
fi
|