#!/bin/bash
# Make sure script is ran as root
if [[ $EUID -ne 0 ]]; then
	exec sudo /bin/bash "$0" "$@"
fi
if [[ $1 = "" ]]; then
	echo "Usage: apache-add-proxy.sh [domain.com] [http://192.168.0.108:3000/]"
	exit 0
fi
domain=$(perl -e "(\$d)=\"$1\"=~/(\\w+\\.\\w+)\$/;print \$d")
host=$(perl -e "(\$d)=\"$1\"=~/(\\w+)\\.\\w+\\.\\w+\$/;print \$d")
red='\033[0;31m'
green='\033[0;32m'
nocolor='\033[0m'
if [[ -f "/etc/apache2/sites-enabled/$1.conf" ]]; then
	echo "Config file $1.conf does already exist"
	exit 1
fi
if [[ ! -d "/var/www/$1" ]]; then
	mkdir "/var/www/$1"
fi
if [[ ! -d "/var/www/$1/logs" ]]; then
        mkdir "/var/www/$1/logs"
fi
chmod -R 777 "/var/www/$1"

echo "Searching for SSL certificate for $domain ..."
declare -a CertDirectories=("/var/www/$domain/certs" "/var/www/SSL-Certificates")
unset CertDirectory
for TestDirectory in "${CertDirectories[@]}"
do
	if [[ -f "$TestDirectory/$domain-crt.pem" ]] && [[ -f "$TestDirectory/$domain-key.pem" ]] && [[ -f "$TestDirectory/$domain-chain.pem" ]]; then
		echo "SSL certificate found!"
		CertDirectory=$TestDirectory;
	fi
done

if [[ $host = "" ]]; then
	serveralias="ServerAlias www.$1"
else
	serveralias=""
fi

echo Adding site
cat <<EOT1 >> "/etc/apache2/sites-enabled/$1.conf"
<VirtualHost *:80>

	ServerName $1
	$serveralias
	ServerAdmin webmaster@$1

	HostnameLookups Off
	ErrorLog /var/www/$1/logs/error.log
	CustomLog /var/www/$1/logs/access.log combined

	<IfModule proxy_module>
		<IfModule proxy_http_module>
			ProxyPreserveHost On
			ProxyPass "/" $2
			ProxyPassReverse "/" $2
		</IfModule>
	</IfModule>

</VirtualHost>
EOT1

if [[ ! $CertDirectory = "" ]]; then
	echo Adding SSL settings
	cat <<EOT2 >> "/etc/apache2/sites-enabled/$1.conf"
<IfModule ssl_module>
	<VirtualHost *:443>

		ServerName $1
		$serveralias
		ServerAdmin webmaster@$1

		HostnameLookups Off
		LogFormat "%h %l %u %{%Y-%m-%d %H:%M:%S}t \"%r\" %>s %b" mylogformat
		ErrorLog /var/www/$1/logs/error-ssl.log
		CustomLog /var/www/$1/logs/access-ssl.log mylogformat

		SSLEngine on
		SSLCertificateFile "$CertDirectory/$domain-crt.pem"
		SSLCertificateKeyFile "$CertDirectory/$domain-key.pem"
		SSLCertificateChainFile "$CertDirectory/$domain-chain.pem"
		BrowserMatch "MSIE [2-5]" nokeepalive ssl-unclean-shutdown downgrade-1.0 force-response-1.0

		<IfModule proxy_module>
			<IfModule proxy_http_module>
				ProxyPreserveHost On
				ProxyPass "/" $2
				ProxyPassReverse "/" $2
			</IfModule>
		</IfModule>
	</VirtualHost>
</IfModule>
EOT2
fi

apacheresult=$(apachectl configtest 2>&1)
if [[ ! $apacheresult =~ "Syntax OK" ]]; then
        rm "/etc/apache2/sites-enabled/$1.conf"
	echo "Errors detected:"
        echo "$apacheresult"
else
	echo "Site added!"
	systemctl restart apache2
fi