complete_configuration

#!/bin/bash
#
# This script completes the configuration needed for the hsm "package".
# In the case of the manual install, this script installs necessary debian packages
# and sets the name of the access point and the password for the access point.
# In the case where a debian package install has been performed, this script
# updates the npm package, if necessary (and it is at the time of this writing),
# installs nftables, if necessary, and performs some gymnastics necessary to
# retain network connectivity that's interrupted by the package installs of
# hostapd and dnsmasq.  When it finishes, the access point should be up and
# users should be able to log into it from the wireless lan.  The monitor
# should be operational, too, and listening to port 3000.
#
# After shutdown, connect your device to a Android phone with a USB cable, and
# power it back up,  Assuming your cellular data is on and tethering is on,
# you should be able to connect other devices to the access point and be connected
# on the internet via your phone.
#
name=$1
password=$2
systemctl stop dnsmasq
ping google.com -w3 -c1
if [ $? -eq 1 ]; then
    echo "You have no access to the internet - establish route or name service and attempt again"
    exit 1
fi
if [ "$name" == "" ]; then
    echo "A name for the access point must be supplied"
    exit 1
fi
if [ "$password" == "" ]; then
    echo "A password for the access point must be supplied"
    exit 1
fi
/usr/bin/apt list --installed nodejs 2>/dev/null | grep nodejs
if [ $? -eq 1 ]; then
    /bin/echo "nodejs is not installed, installing it"
    /usr/bin/apt-get install -y nodejs
fi
/usr/bin/apt list --installed npm 2>/dev/null | grep npm
if [ $? -eq 1 ]; then
    /bin/echo "nodejs is not installed, installing it"
    /usr/bin/apt-get install -y npm
fi
cd /var/www/html/hsm
perl -e '@vn = split(/\./,`npm -v`); (($vn[0] >= 6) && ($vn[1] >= 14) && ($vn[2] >= 8)) && exit 0; exit 1'
if [ $? -eq 1 ]; then
    npm i npm@latest -g
    hash -r
fi
npm install
/usr/bin/apt list --installed hostapd 2>/dev/null | grep hostapd
if [ $? -eq 1 ]; then
    /bin/echo "hostapd is not installed, installing it"
    /usr/bin/apt-get install -y hostapd
fi
/usr/bin/apt list --installed dnsmasq 2>/dev/null | grep dnsmasq
if [ $? -eq 1 ]; then
    /bin/echo "dnsmasq is not installed, installing it"
    /usr/bin/apt-get install -y dnsmasq
fi
cd /var/www/html/hsm
iptables -S 2>&1 | grep nft
if [ $? -eq 0 ]; then
    /usr/bin/apt-get install -y nftables
    ln -s ./hsmWrapper.nft hsmWrapper
else
    ln -s ./hsmWrapper.iptables hsmWrapper
fi
cd ./New
find . -type f -print | while read line ; do
    /bin/mv /$line /$line.orig
    cp -p $line /$line
done
sed "s/NameOfNetwork/$name/" -i /etc/hostapd/hostapd.conf
sed "s/AardvarkBadgerHedgehog/$password/" -i /etc/hostapd/hostapd.conf
systemctl status hostapd | grep running
if [ $? -eq 1 ]; then
    systemctl stop hostapd
    systemctl unmask hostapd
    systemctl start hostapd
fi
systemctl status hsm | grep running
if [ $? -eq 1 ]; then
    systemctl stop hsm
    systemctl unmask hsm
    systemctl start hsm
fi
grep "#net.ipv4.ip_forward" /etc/sysctl.conf
if [ $? -eq 0 ]; then
    sed "s/#net.ipv4.ip_/net.ipv4.ip_/" -i /etc/sysctl.conf
fi
systemctl start dnsmasq
perl -e '$line = `grep address /etc/network/interfaces`; @words = split(/ +/, $line); chop($words[2]); $cmd = "ifconfig wlan0 " . $words[2] . "/24"; `$cmd`'
echo "At this point, your device should be setup to be a hotspot and it should be active"
echo "You should check that you can get into the network prior to rebooting"