install.sh

#!/usr/bin/env bash
# ZeroCar2w Install Script
# by jrossmanjr -- https://github.com/jrossmnajr/zerocar2w
# Use a RaspberryPi as a WiFi hotspot to serve up files
#--------------------------------------------------------------------------------------------------------------------#
# Shoutout to the folks making PiHole, Adafruit, & PIRATEBOX for showing me the way and essentially teaching me BASH
#
# A lot of help came from ADAFRUIT -- https://learn.adafruit.com/setting-up-a-raspberry-pi-as-a-wifi-access-point/install-software
#
# Thanks to RaspberryConnect.com for some refinement of the setup code
#
# RaspiAP by billz is so awesome -- https://github.com/billz/raspap-webgui
#--------------------------------------------------------------------------------------------------------------------#
# MIT License
#Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
#documentation files (the "Software"), to deal in the Software without restriction, including without limitation
#the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
#and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
#THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
#OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
#OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#--------------------------------------------------------------------------------------------------------------------#

echo ":::
███████╗███████╗██████╗  ██████╗  ██████╗ █████╗ ██████╗
╚══███╔╝██╔════╝██╔══██╗██╔═══██╗██╔════╝██╔══██╗██╔══██╗
  ███╔╝ █████╗  ██████╔╝██║   ██║██║     ███████║██████╔╝
 ███╔╝  ██╔══╝  ██╔══██╗██║   ██║██║     ██╔══██║██╔══██╗
███████╗███████╗██║  ██║╚██████╔╝╚██████╗██║  ██║██║  ██║
╚══════╝╚══════╝╚═╝  ╚═╝ ╚═════╝  ╚═════╝╚═╝  ╚═╝╚═╝  ╚═╝


    By - jrossmanjr   //   https://github.com/jrossmnajr/zerocar2w             "

# Find the rows and columns will default to 80x24 is it can not be detected
screen_size=$(stty size 2>/dev/null || echo 24 80)
rows=$(echo $screen_size | awk '{print $1}')
columns=$(echo $screen_size | awk '{print $2}')

# Divide by two so the dialogues take up half of the screen, which looks nice.
r=$(( rows / 2 ))
c=$(( columns / 2 ))
# Unless the screen is tiny
r=$(( r < 20 ? 20 : r ))
c=$(( c < 70 ? 70 : c ))


# Run this script as root or under sudo
if [[ $EUID -eq 0 ]];then
  echo "::: You are root."
else
  echo "::: sudo will be used."
  # Check if it is actually installed
  # If it isn't, exit because the install cannot complete
  if [[ $(dpkg-query -s sudo) ]];then
    export SUDO="sudo"
  else
    echo "::: Please install sudo or run this script as root."
    exit 1
  fi
fi

# Into popups and variable setup
whiptail --msgbox --title "ZeroCar2w automated installer" "\nThis installer turns your Raspberry Pi and Wifi Dongle into \nan awesome WiFi router and media streamer!" ${r} ${c}
whiptail --msgbox --title "ZeroCar2w automated installer" "\n\nFirst things first... Lets set up some variables!" ${r} ${c}
var1=$(whiptail --inputbox "Name the DLNA Server" ${r} ${c} ZeroCar2w --title "DLNA Name" 3>&1 1>&2 2>&3)
var2=$(whiptail --inputbox "Name the WiFi Hotspot" ${r} ${c} ZeroCar2w --title "Wifi Name" 3>&1 1>&2 2>&3)
var3=$(whiptail --passwordbox "Please enter a password for the WiFi hotspot (8 character min!)" ${r} ${c} --title "HotSpot Password" 3>&1 1>&2 2>&3)
var4=$(whiptail --inputbox  "Please enter a folder name to put your files in" ${r} ${c} --title "Folder Name for Media" 3>&1 1>&2 2>&3)
whiptail --msgbox --title "ZeroCar2w automated installer" "\n\nOk all the data has been entered...The install will now complete!" ${r} ${c}

#--------------------------------------------------------------------------------------------------------------------#
# Functions to setup the rest of the server
#--------------------------------------------------------------------------------------------------------------------#

function delete_junk() {
# delete all the junk that has nothing to do with being a lightweight server
  echo ":::"
  echo "::: Removing JUNK...from the trunk"
  $SUDO apt-get -y purge dns-root-data minecraft-pi python-minecraftpi wolfram-engine sonic-pi libreoffice scratch
  $SUDO apt-get autoremove
  echo "::: DONE!"
}

function install_the_things() {
  # installing samba server so you can connect and add files easily
  # installing minidlna to serve up your shit nicely
  echo ":::"
  echo "::: Installing Samba, Minidlna & Making Directories"
  $SUDO mkdir "$var4"
  $SUDO apt update 
  $SUDO apt install -y apt-transport-https
  $SUDO apt upgrade -y
  $SUDO apt install -y wget samba samba-common-bin exfat-utils exfat-fuse minidlna
  echo "::: DONE installing all the things!"
}

function edit_samba() {
  # editing Samba
  echo ":::"
  echo "::: Editing Samba... "
  echo "::: You will enter a password for your Folder Share next."
  $SUDO smbpasswd -a pi
  $SUDO cp /etc/samba/smb.conf /etc/samba/smb.conf.bkp
  echo '[Mediadrive]
        comment = Public Storage
        path = /home/
        create mask = 0775
        directory mask = 0775
        read only = no
        browsable = yes
        writable = yes
        guest ok = yes
        guest only = yes' | sudo tee --append /etc/samba/smb.conf > /dev/null
  $SUDO /etc/init.d/samba restart
  echo "::: DONE!"
}

function instal_raspiap() {
  echo ":::"
  echo "::: Installing Access Pont Software..."
  echo "************************"
  echo "*** DO NOT RESTART!! ***"
  echo "************************"
  curl -sL https://install.raspap.com | bash -s -- --yes --openvpn 0 --adblock 0 --minwrite
}

function edit_hostapd() {
  # editing hostapd and associated properties
  echo ":::"
  echo "::: Editing hostapd"
  $SUDO echo 'driver=nl80211
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
beacon_int=100
auth_algs=1

wpa_key_mgmt=WPA-PSK
channel=1
hw_mode=g
interface=wlan0
wpa=2
wpa_pairwise=CCMP
rsn_pairwise=CCMP

country_code=US

macaddr_acl=0
ignore_broadcast_ssid=0
ieee80211n=1
#ht_capab=[HT40][SHORT-GI-20][DSSS_CCK-40]

### SSID AND PASSWORD ###
' > /etc/hostapd/hostapd.conf
  echo "ssid=$var2" | sudo tee --append /etc/hostapd/hostapd.conf > /dev/null
  echo "wpa_passphrase=$var3" | sudo tee --append /etc/hostapd/hostapd.conf > /dev/null
  echo "::: DONE!"
}

function edit_dhcpdconf() {
  # editing dhcpcd to stop it from starting the wifi network so the autostart script can
  echo ":::"
  echo "::: Editing dhcpd.conf"
  $SUDO echo '#Defaults from Raspberry Pi configuration
hostname
clientid
persistent
option rapid_commit
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
option ntp_servers
require dhcp_server_identifier
slaac private
nohook lookup-hostname
nohook wpa_supplicant

interface wlan0
static ip_address=10.0.0.1/24
static routers=10.0.0.1
static domain_name_server=1.1.1.1 8.8.8.8' > /etc/dhcpcd.conf
  echo "::: DONE!"
}

function edit_dnsmasq() {
  # editing dnsmasq
  echo ":::"
  echo "::: Editing dnsmasq.conf"
  echo "domain-needed
interface=wlan0
dhcp-range=10.0.0.2,10.0.0.245,255.255.255.0,24h" > /etc/dnsmasq.conf
  echo "::: DONE"
}

function finishing_touches() {
  # restarting
  echo "::: Finishing touches..."
  $SUDO chmod -R 777 /home/pi
  $SUDO chmod -R 777 /var/log
  $SUDO sysctl -p
  echo "::: Please restart the Pi and then connect to the hotspot :::"
}

function edit_minidlna() {
  # editing minidlna
  echo ":::"
  echo -n "::: Editing minidlna"
  $SUDO mkdir /home/pi/minidlna
  $SUDO cp /etc/minidlna.conf /etc/minidlna.conf.bkp
  $SUDO echo "user=root
db_dir=/home/pi/minidlna/
log_dir=/var/log
port=8200
inotify=yes
enable_tivo=no
strict_dlna=no
album_art_names=Folder.jpg/folder.jpg/Thumb.jpg/thumb.jpg/movie.tbn/movie.jpg/Poster.jpg/poster.jpg
notify_interval=900
serial=12345678
model_number=1
root_container=B" > /etc/minidlna.conf
  echo "model_name=$var1" | sudo tee --append /etc/minidlna.conf > /dev/null
  echo "media_dir=V,$var4" | sudo tee --append /etc/minidlna.conf > /dev/null
  echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf > /dev/null
  $SUDO update-rc.d minidlna defaults
  echo "::: DONE!"
}

delete_junk
install_the_things
edit_samba
edit_minidlna
instal_raspiap
edit_hostapd
edit_dhcpdconf
edit_dnsmasq
finishing_touches