Script for generating and registering ssl certs

sslsetup.sh

#!/bin/sh
# sslsetup.sh
# This script is designed to be run on a shared hosting service to automatically genrate and register SSL certs
# Upload to your server and then run via ssh then set a cron job to renew every 90 days
# Prerequisites: openssh, openssl, perl, gcc, 
# Usage: sslsetup <domainname> or: sslsetup

# Initial setup (if not setup already)
if [ ! -d ~/bin ]; then mkdir ~/bin; fi
if [ ! -d ~/.cpan ]; then echo 'Configuring cpan'; echo y | cpan > /dev/null 2>&1; fi
CMMD='eval "$(perl -I$HOME/perl5/lib/perl5 -Mlocal::lib)"'
if [ $(cat ~/.bash_profile | grep -c "$CMMD" = 0) ] then echo 'Updating .bash_profile'; echo "$CMMD" >> ~.bash_profile; fi
source ~/.bash_profile
if [ ! -f ~/perl5/bin/le.pl ]; then echo "Installing crypt::LE"; cpan -i Crypt::LE; ln -s ~/perl5/bin/le.pl ~/bin/le  
if [ ! -f ~/perl5/bin/cpanm ]; then echo 'Installing cpanminus'; curl -Ls http://cpanmin.us | perl - App::cpanminus; ln -s ~/perl5/bin/cpanm ~/bin/cpanm; fi

DOMAIN=$1
WWWROOT=~/public_html
KEYSTOREFOLDER=~/ssl
echo "Generate and register SSL certs for your domain."

if [ ! "$DOMAIN" = "" ]; then
    while true; do
        read -p "Do you wish to generate and register ssl certs for $DOMAIN? [Y]" YN
        case $YN in
            [Yy]* ) break;;
            [Nn]* ) exit;;
            * ) echo "Please answer yes or no.";;
        esac
    done

if [ "$DOMAIN" = "" ]; then
    read -p "Please enter your domain name : " DOMAIN
    while true; do
        read -p "you have entered $DOMAIN. Is this correct?" YN
        case $YN in
            [Yy]* ) break;;
            [Nn]* ) exit;;
            * ) echo "Please answer yes or no.";;
        esac
    done
fi

HOST=$(echo $DOMAIN | sed 's/\..*//')
TLD=$(echo $DOMAIN | sed "s/$HOST//")
if [ ! -d "$KEYSTOREFOLDER" ]; then mkdir $KEYSTOREFOLDER; fi
if [ ! -f "$KEYSTOREFOLDER/account.key" ]; then echo 'Generating account key'; openssl genrsa -out account.key 4096; fi
if [ ! -f "$KEYSTOREFOLDER/$HOST.key" ]; then echo 'Generating site key'; openssl genrsa -out $HOST.key 2048; fi

le --key account.key --csr $HOST.csr --csr-key $HOST.key --crt $HOST.crt --domains "www.$DOMAIN,$DOMAIN" --path ~/public_html/.well-known/acme-challenge/ --generate-missing --unlink --live
echo 'Finished'