#!/bin/sh

SERVER="no"
SERVERNAME="batgw"

project="ffol"

test_internet_host1="mastersword.de"
test_internet_host2="78.46.215.78"

#Only do something with fastd when the router has internet connection
if ping -w5 -c3 "$test_internet_host1" &>/dev/null || ping -w5 -c3 "$test_internet_host2" &>/dev/null
then

if [ "$SERVER" == "no" ]
then
	hostname=$(cat /proc/sys/kernel/hostname)

	if [ "$hostname" == "OpenWrt" ]
	then
		hostname=""
	fi

	if [ "$hostname" == "" ]
	then
	  hostname=$(ifconfig br-mesh | grep HWaddr | awk '{ print $5 }'|sed -e 's/://g')
	fi

	if [ "$hostname" == "" ]
	then
		hostname=$(ifconfig eth0 | grep HWaddr | awk '{ print $5 }'|sed -e 's/://g')
	fi

	if [ "$hostname" == "" ]
	then
		hostname=$(ifconfig ath0 | grep HWaddr | awk '{ print $5 }'|sed -e 's/://g')
	fi
else
	hostname=$SERVERNAME
fi

if [ ! -d /etc/fastd ]
then
	mkdir /etc/fastd
fi

if [ ! -d /etc/fastd/$project ]
then
	mkdir /etc/fastd/$project

	mkdir /tmp/fastd_${project}_peers
	ln -s /tmp/fastd_${project}_peers /etc/fastd/$project/peers
	echo '#!/bin/sh' > /etc/fastd/$project/up.sh
	echo 'ip link set up dev $1' >> /etc/fastd/$project/up.sh
	
	if [ "$SERVER" == "no" ]
	then
		echo 'batctl if add $1' >> /etc/fastd/$project/up.sh
		
		secret=$(fastd --generate-key 2>&1 | grep -i secret | awk '{ print $2 }')
		echo "" >> /etc/config/fastd
		echo "	config fastd $project" >> /etc/config/fastd
		echo "		option enabled 1" >> /etc/config/fastd
		echo "		list config_peer_dir '/etc/fastd/$project/peers'" >> /etc/config/fastd
		echo "		option syslog_level 'verbose'" >> /etc/config/fastd
		echo "		option method null" >> /etc/config/fastd
		echo "		option mode 'tap'" >> /etc/config/fastd
		echo "		option bind '0.0.0.0:10000'" >> /etc/config/fastd
		echo "		option interface '${project}VPN'" >> /etc/config/fastd
		echo "		option mtu 1448" >> /etc/config/fastd
		echo "		option secret '$secret'" >> /etc/config/fastd
		echo "		option up '/etc/fastd/ffol/up.sh \$1'" >> /etc/config/fastd
	fi
	chmod +x /etc/fastd/$project/up.sh
fi

if [ ! -d /tmp/fastd_${project}_peers ]
then
	mkdir /tmp/fastd_${project}_peers
fi	

pubkey=$(/etc/init.d/fastd show_key $project)
#port=666


# fire up
if [ "$(/sbin/ifconfig -a | grep -i ethernet | grep $project)" == "" ]
then
	/etc/init.d/fastd start $project
fi

# register
wget -T15 "http://mastersword.de/~reddog/fastd/?name=$hostname&port=$port&key=$pubkey" -O /tmp/fastd_${project}_output
echo "http://mastersword.de/~reddog/fastd/?name=$hostname&port=$port&key=$pubkey"

filenames=$(cat /tmp/fastd_${project}_output| grep ^#### | sed -e 's/^####//' | sed -e 's/.conf//g')
for file in $filenames
do
grep -A100 $file /tmp/fastd_${project}_output | grep -v $file | grep -m1 ^### -B100 | grep -v ^### > /etc/fastd/$project/peers/$file
done

#reload
kill -HUP $(cat /var/run/fastd.$project.pid)

else
	echo "Der Router kann keine Verbindung zum Fastdserver aufbauen"
	echo "$0 macht nichts!"
fi

exit 0