rc.local V0.4

#!/bin/bash
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

# Print the IP address
_IP=$(hostname -I) || true
_wlanexist=$(ifconfig | grep wlan) || true

if [ "$_IP" ]; then
  printf "My IP address is %s\n" "$_IP"
fi

# RPi Network Conf Bootstrapper

createAdHocNetwork(){
    echo "Starting AP Mode"
    echo "Downing wlan0"
    sudo ifconfig wlan0 down
    sleep 1
    echo "Stopping wpa_supplicant"
    sudo killall -9 wpa_supplicant
    sleep 1
    echo "Starting hostapd"
    sudo /etc/init.d/hostapd start
    sleep 1
    echo "Configuring wlan0 IP"
    sudo ifconfig wlan0 10.10.10.1
    sleep 1
    echo "Starting dhcpd on wlan0"
    sudo /usr/sbin/dhcpd wlan0
    echo "Please connect to access point PiFi_Mini_AP"
    echo "Password is pifimini00"
    echo "Enjoy"
    ./etc/airplay_monitor.sh& #start script to monitor airplay and pause mpc when user is connected
    #Uncomment the line below if using an LCD and the PiFi LCD python scripts
    #python /etc/mpc_lcd_info.py& #start lcd script that displays mpd info
    #Uncomment the line below if using buttons
    #python /etc/buttons.py& #start button script
    echo "AP network created"
    echo "The server ip is 10.10.10.1"
}

echo "======================================================="
echo "PiFi Network Conf Bootstrapper V0.4"
echo "======================================================="
echo "===Based on script by Lasse Christiansen at lcdev.dk==="
echo "Checking if USB Wifi card is present"
connected=false
if [ "$_wlanexist" ]; then
        echo "USB Wifi is present, scanning for known WiFi networks"
        for i in 1 # Initially was for i in 1 2 3 but found it took too long to failover to adhoc
        do
         if connected=false
                then
                echo "Starting supplicant for WPA/WPA2"
                wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf > /dev/null 2>&1
                echo "Obtaining IP from DHCP"
                if dhclient -1 wlan0
                then
                    echo "Connected to WiFi"
                    connected=true
                    iwconfig 2> /dev/null | grep ESSID > /etc/wpa_supplicant/my_current_ssid.txt
                    cat /etc/wpa_supplicant/my_current_ssid.txt
                    echo "My IP address is:"
                    hostname -I
                    ./etc/airplay_monitor.sh& #start script to monitor airplay and pause mpc when user is connected
                    #Uncomment the next line if you're using an LCD, make sure you have created the python scripts first though
                    #python /etc/mpc_lcd_info.py& #start lcd script that displays mpd info
                    #Uncomment the line below if using buttons
                    #python /etc/buttons.py& #start button script
                    break
                else
                    echo "DHCP server did not respond with an IP lease (DHCPOFFER)"
                    wpa_cli terminate
                    break
                fi
            else
                echo "No ssid's listed in your wpa_supplicant.conf files were in range"
            fi
        done
else
        echo "No wireless cards detected, trying wired connection"
        if dhclient -1 eth0
        then
                connected=true
                echo "Connected on ETH0"
                if [ "$_IP" ]; then
                        printf "My IP address is %s\n" "$_IP"
                else
                        echo "Unable to obtain IP on ETH0"
                fi
        fi
fi

if ! $connected; then
        if [ "$_wlanexist" ]; then
                createAdHocNetwork
        else
                echo "No wireless or wired connections could be established"
                sudo python /etc/no_connection_lcd.py&
        fi
fi

exit 0