#!/bin/bash
#
#Variables
VHOSTNAME=$1
TIER=$2
#
HTTPDCONF=/etc/httpd/conf/httpd.conf
VHOSTCONFDIR=/etc/httpd/conf.vhosts.d
DEFVHOSTCONFFILE=$VHOSTCONFDIR/00-default-vhost.conf
VHOSTCONFFILE=$VHOSTCONFDIR/$VHOSTNAME.conf
WWWROOT=/srv
DEFVHOSTDOCROOT=$WWWROOT/default/www
VHOSTDOCROOT=$WWWROOT/$VHOSTNAME/www
#delete vhost
if [ "$2" = 'del' ];then
	if [ -d $VHOSTDOCROOT ];then
		rm -rf $VHOSTDOCROOT
		echo "Delete Directory Successful."
	fi
	if [  -f $VHOSTCONFFILE ];then
		rm -rf $VHOSTCONFFILE
		echo "Delete Config Successful."
	else
		echo "Nothing to do."
	fi
	exit 1
fi


#Check arguments
if [ -z $VHOSTNAME ] || [ -z $TIER ];then
	echo "Usage: $0 VHOSTNAME TIER"
	exit 1
else
#Set support email address
	case $TIER in
		1)
			VHOSTADMIN='basic_support@example.com'
			;;
		2)
			VHOSTADMIN='business_support@example.com'
			;;
		3)
			VHOSTADMIN='enterprise_support@example.com'
			;;
		*)
			echo "Invalid tier specfied."
			exit 1
			;;
	esac
fi
#
#Create conf directory one time if  non-existent
if [ ! -d $VHOSTCONFDIR ];then
	mkdir $VHOSTCONFDIR
		if [ $? -ne 0 ];then
			echo "ERROR : Failed creating $VHOSTCONFDIR"
			exit 1
		fi
fi
#
#Add include one time if missing
grep -q '^IncludeOptional conf\.vhosts\.d/\*\.conf$' $HTTPDCONF

if [ $? -ne 0 ];then
	#Backup before modifying
	cp -a $HTTPDCONF $HTTPDCONF.orig
	
	echo "IncludeOptional conf.vhosts.d/*.conf" >>$HTTPDCONF
	
	if [ $? -ne 0 ];then
		echo "ERROR: Failed adding include directive."
		exit 1
	fi
fi
#
#Check for default virtual host
if [ ! -f $DEFVHOSTCONFFILE ];then
	cat <<DEFCONFEOF >$DEFVHOSTCONFFILE
<VirtualHost _default_:80>
	DocumentRoot $DEFVHOSTDOCROOT
	CustomLog "logs/default-vhost.log" combined
</VirtualHost>
#
<Directory $DEFVHOSTDOCROOT>
Require all granted
</Directory>
DEFCONFEOF
fi
#
if [ ! -d $VHOSTCONFDIR ];then
	mkdir $VHOSTCONFDIR
	restorecon -Rv /srv/ &>/dev/null
fi
#Check for VirtualHost conflict
if [ -f $VHOSTCONFFILE ];then
	echo "ERROR:$VHOSTCONFFILE already exists."
	exit 1
elif [ -d $VHOSTDOCROOT ];then
	echo "ERROR:$VHOSTDOCROOT already exists."
	exit 1
else
	cat <<CONFEOF >$VHOSTCONFFILE
<Directory $VHOSTDOCROOT>
Require all granted
AllowOverride None
</Directory>
#
<VirtualHost *:80>
	DocumentRoot $VHOSTDOCROOT
	ServerName $VHOSTNAME
	ServerAdmin $VHOSTADMIN
	ErrorLog "logs/${VHOSTNAME}_error_log"
	CustomLog "logs/${VHOSTNAME}_access_log" common
</VirtualHost>
CONFEOF
	mkdir -p $VHOSTDOCROOT
	restorecon -Rv $WWWROOT &>/dev/null
fi
#
#Check config and reload 
apachectl configtest &>/dev/null
if [ $? -eq 0 ];then
	systemctl reload httpd &>/dev/null
else
	echo "ERROR:Config error"
	exit 1
fi