#!/bin/bash
# info: stop system firewall
# options: NONE
#
# example: v-stop-firewall
#
# This function stops iptables

#----------------------------------------------------------#
#                Variables & Functions                     #
#----------------------------------------------------------#

# Defining absolute path for iptables
iptables="/sbin/iptables"

# Includes
# shellcheck source=/etc/hestiacp/hestia.conf
source /etc/hestiacp/hestia.conf
# shellcheck source=/usr/local/hestia/func/main.sh
source $HESTIA/func/main.sh
# shellcheck source=/usr/local/hestia/func/firewall.sh
source $HESTIA/func/firewall.sh
# load config file
source_conf "$HESTIA/conf/hestia.conf"

#----------------------------------------------------------#
#                    Verifications                         #
#----------------------------------------------------------#

# Perform verification if read-only mode is enabled
check_hestia_demo_mode

#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Self heal iptables links
heal_iptables_links

# Creating temporary file
tmp="$(mktemp)"

# Flushing INPUT chain
echo "$iptables -P INPUT ACCEPT" >> $tmp
echo "$iptables -F INPUT" >> $tmp

# Deleting hestia chain
echo "$iptables -X hestia" >> $tmp

# Deleting custom chains
IFS=$'\n'
for chain in $(cat $HESTIA/data/firewall/chains.conf 2> /dev/null); do
	parse_object_kv_list "$chain"
	echo "$iptables -F fail2ban-$CHAIN" >> $tmp
	echo "$iptables -X fail2ban-$CHAIN" >> $tmp
done

# Applying rules
bash $tmp 2> /dev/null

# Deleting temporary file
rm -f $tmp

# Clean up and saving rules to the master iptables file
if [ -d "/etc/sysconfig" ]; then
	/sbin/iptables-save | sed -e 's/[[0-9]\+:[0-9]\+]/[0:0]/g' -e '/^-A fail2ban-[A-Z]\+ -s .\+$/d' > /etc/sysconfig/iptables
else
	/sbin/iptables-save | sed -e 's/[[0-9]\+:[0-9]\+]/[0:0]/g' -e '/^-A fail2ban-[A-Z]\+ -s .\+$/d' > /etc/iptables.rules
	iptablesversion="$(iptables --version | head -1 | awk '{print $2}' | cut -f -2 -d .)"
	sd_unit="/lib/systemd/system/hestia-iptables.service"
	if [ ! -e "$sd_unit" ]; then
		echo "[Unit]" >> $sd_unit
		echo "Description=Loading Hestia firewall rules" >> $sd_unit
		echo "DefaultDependencies=no" >> $sd_unit
		echo "Wants=network-pre.target local-fs.target" >> $sd_unit
		echo "Before=network-pre.target" >> $sd_unit
		echo "After=local-fs.target" >> $sd_unit
		echo "" >> $sd_unit
		echo "[Service]" >> $sd_unit
		echo "Type=oneshot" >> $sd_unit
		echo "RemainAfterExit=yes" >> $sd_unit
		echo "ExecStartPre=-${HESTIA}/bin/v-update-firewall-ipset load" >> $sd_unit
		if [ "$iptablesversion" = "v1.6" ]; then
			echo "ExecStart=/sbin/iptables-restore /etc/iptables.rules" >> $sd_unit
		else
			echo "ExecStart=/sbin/iptables-restore --wait=10 /etc/iptables.rules" >> $sd_unit
		fi
		echo "" >> $sd_unit
		echo "[Install]" >> $sd_unit
		echo "WantedBy=multi-user.target" >> $sd_unit
		systemctl -q daemon-reload
	fi
	systemctl -q is-enabled hestia-iptables 2> /dev/null && systemctl -q disable hestia-iptables
	if [ -z "$FIREWALL_SYSTEM" ]; then
		rm -f $sd_unit
		systemctl -q daemon-reload
	fi
fi

#----------------------------------------------------------#
#                       Hestia                             #
#----------------------------------------------------------#

exit
