280 lines
8.9 KiB
Bash
280 lines
8.9 KiB
Bash
#!/bin/bash
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#######
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### Update NGINX configuration '<tags>' with proper values and optionally copy
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### to updated directory structure
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#######
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### text formatting ansi codes
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err="\e[1;31m"
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ok="\e[1;32m"
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warn="\e[93m"
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mag="\e[95m"
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cyan="\e[96m"
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norm="\e[0m"
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### set variables
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unset IP4
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unset useCertbot
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unset CertbotDomain
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unset CertPath
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unset KeyPath
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unset CAChainPath
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unset DHPath
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detectedIP=$(ip route get 1 | sed -n 's/^.*src \([0-9.]*\) .*$/\1/p')
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regexIP4="(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])"
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regexHostname="(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])"
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### quick intro for the user
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echo -e "\n${mag}This script will customize the provided NGINX template files for your"
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echo "environment. You will be prompted for all necessary information. After that,"
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echo "default error pages will be copied to your webroot and your NGINX configuration"
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echo -e "directory structure will be customized.${norm}\n"
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echo -e "${warn}You may accept the default option (listed in brackets) by simply"
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echo "pressing ENTER (i.e. no answer)."
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echo -e "You may exit this script at any prompt by typing 'X'${norm}\n"
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### get local IP address
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while true; do
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read -p "What is this NGINX machine's primary local IP4 address? (${detectedIP}) " inputIP
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case "${inputIP}" in
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'')
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IP4="${detectedIP}"
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break
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;;
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[Xx]*)
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echo -e "\n${cyan}---exiting---\n${norm}"
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exit 1
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;;
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*)
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# check IP for validity
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if [[ "${inputIP}" =~ ^${regexIP4}$ ]]; then
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IP4="${inputIP}"
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break
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else
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echo -e "\n${err}Invalid IP4 format (xxx.xxx.xxx.xxx)${norm}"
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fi
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;;
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esac
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done
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### SSL related options
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# using certbot?
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while true; do
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read -p "Are you using Certbot to handle your SSL certificates? (default: NO) " yn
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case "${yn}" in
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[Yy]*)
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useCertbot=1
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break
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;;
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[Nn]|'')
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useCertbot=0
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unset CertbotDomain
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break
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;;
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[Xx]*)
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echo -e "\n${cyan}---exiting---\n${norm}"
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exit 1
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;;
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*)
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echo -e "\n${err}Please answer (Y)es, (N)o, e(X)it or accept default${norm}"
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;;
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esac
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done
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# using Certbot: get primary domain name since that how Certbot determines paths
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if [ "${useCertbot}" -eq 1 ]; then
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while true; do
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read -p "What is the primary domain for your Certbot Certificates? " inputCertbotDomain
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case "${inputCertbotDomain}" in
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'')
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echo -e "\n${err}You cannot have an empty domain name${norm}"
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;;
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[Xx]*)
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echo -e "\n${cyan}---exiting---\n${norm}"
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exit 1
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;;
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*)
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# check hostname for validity
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if [[ "${inputCertbotDomain}" =~ ^${regexHostname}$ ]]; then
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CertbotDomain="${inputCertbotDomain}"
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break
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else
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echo -e "\n${err}Invalid hostname${norm}"
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fi
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;;
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esac
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done
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fi
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# Generate paths from CertbotDomain
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if [ "${useCertbot}" -eq 1 ]; then
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CertPath="/etc/letsencrypt/live/${CertbotDomain}/fullchain.pem"
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KeyPath="/etc/letsencrypt/live/${CertbotDomain}/privkey.pem"
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CAChainPath="/etc/letsencrypt/live/${CertbotDomain}/chain.pem"
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fi
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# only process manual certificate paths if NOT using Certbot
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if [ "${useCertbot}" -eq 0 ]; then
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# not using Certbot: get location of certificate
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while true; do
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read -p "What is the path to your primary SSL certificate? " inputCertPath
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case "${inputCertPath}" in
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'')
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echo -e "\n${err}You cannot have an empty path to your SSL certificate${norm}"
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;;
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[Xx]*)
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echo -e "\n${cyan}---exiting---\n${norm}"
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exit 1
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;;
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*)
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# validate path
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if [ -f "${inputCertPath}" ]; then
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CertPath="${inputCertPath}"
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break
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else
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echo -e "\n${warn}The file you specified doesn't exist${norm}"
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while true; do
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read -p "Do you want to use this path anyways? " yn
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case $yn in
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[Yy]*)
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CertPath="${inputCertPath}"
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break
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;;
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[Nn]*)
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break
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;;
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*)
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;;
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esac
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done
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if [ -n "${CertPath}" ]; then
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break
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fi
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fi
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;;
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esac
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done
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# not using Certbot: get location of private key
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while true; do
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read -p "What is the path to your primary SSL private key? " inputKeyPath
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case "${inputKeyPath}" in
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'')
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echo -e "\n${err}You cannot have an empty path to your SSL private key${norm}"
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;;
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[Xx]*)
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echo -e "\n${cyan}---exiting---\n${norm}"
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exit 1
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;;
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*)
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# validate path
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if [ -f "${inputKeyPath}" ]; then
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KeyPath="${inputKeyPath}"
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break
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else
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echo -e "\n${warn}The file you specified doesn't exist${norm}"
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while true; do
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read -p "Do you want to use this path anyways? " yn
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case $yn in
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[Yy]*)
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KeyPath="${inputKeyPath}"
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break
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;;
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[Nn]*)
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break
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;;
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*)
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;;
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esac
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done
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if [ -n "${KeyPath}" ]; then
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break
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fi
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fi
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;;
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esac
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done
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# dhparam: get location of DH Parameters file
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while true; do
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read -p "What is the path to your DH Parameters file? (default: /etc/ssl/certs/dhparam.pem) " inputDHPath
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case "${inputDHPath}" in
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'')
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# verify default path exists
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inputDHPath="/etc/ssl/certs/dhparam.pem"
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if [ -f "${inputDHPath}" ]; then
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DHPath="${inputDHPath}"
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break
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else
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echo -e "\n${warn}The file you specified doesn't exist${norm}"
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while true; do
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read -p "Do you want to use this path anyways? " yn
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case $yn in
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[Yy]*)
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DHPath="${inputDHPath}"
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break
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;;
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[Nn]*)
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break
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;;
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*)
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;;
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esac
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done
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if [ -n "${DHPath}" ]; then
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break
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fi
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fi
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;;
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[Xx]*)
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echo -e "\n${cyan}---exiting---\n${norm}"
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exit 1
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;;
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*)
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# validate path
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if [ -f "${inputDHPath}" ]; then
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DHPath="${inputDHPath}"
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break
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else
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echo -e "\n${warn}The file you specified doesn't exist${norm}"
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while true; do
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read -p "Do you want to use this path anyways? " yn
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case $yn in
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[Yy]*)
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DHPath="${inputDHPath}"
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break
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;;
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[Nn]*)
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break
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;;
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*)
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;;
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esac
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done
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if [ -n "${DHPath}" ]; then
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break
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fi
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fi
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;;
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esac
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done
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fi
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# debug section
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echo "Local IP4: $IP4"
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echo "Using Certbot: $useCertbot"
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echo "CertbotDomain: $CertbotDomain"
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echo "CertPath: $CertPath"
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echo "KeyPath: $KeyPath"
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echo "DHPath: $DHPath"
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exit 0
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