wlankeygen

#!/bin/bash

# Make sure only root can run our script
if [[ $EUID -ne 0 ]]; then
    echo "This script must be run as root" 1>&2
    exit 1
fi

WORKDIR=/var/guestwlan
HOSTAPDCONF=$WORKDIR/config-files/etc-hostapd-hostapd.conf
MOBILECONFIGTEMPLATE=$WORKDIR/guestwlan.mobileconfig.in

source $WORKDIR/config

WLANPSK=$(dd if=/dev/urandom count=1 status=none | tr -d -c 'a-z' | cut -b1-10)
sed -i -e "s/^ssid=.*/ssid=${WLANSSID}/" $HOSTAPDCONF
sed -i -e "s/^wpa_passphrase=.*/wpa_passphrase=${WLANPSK}/" $HOSTAPDCONF
service hostapd reload

qrencode -t PNG -o ${WORKDIR}/qr_android.png -v 10 -l H "WIFI:T:WPA;S:${WLANSSID};P:${WLANPSK};H:false;"
qrencode -t PNG -o ${WORKDIR}/qr_windows.png -v 10 -l H "WIFI;T:WPA;S:${WLANSSID};P:${WLANPSK};H:false;"
sed -e "s/__wlanssid__/${WLANSSID}/g" $MOBILECONFIGTEMPLATE > /var/www/html/${WLANPSK}.mobileconfig
sed -i -e "s/<string>__wlanpsk__/<string>${WLANPSK}/" /var/www/html/${WLANPSK}.mobileconfig
qrencode -t PNG -o ${WORKDIR}/qr_ios.png -v 10 -l H "${DOMAIN}:${EXTERNALPORT}/${WLANPSK}.mobileconfig"

gm convert -page +0+0 ${WORKDIR}/qr_android.png -page +69+65 ${WORKDIR}/assets/android.png -mosaic ${WORKDIR}/android.png
gm convert -page +0+0 ${WORKDIR}/qr_windows.png -page +69+69 ${WORKDIR}/assets/windows.png -mosaic ${WORKDIR}/windows.png
gm convert -page +0+0 ${WORKDIR}/qr_ios.png     -page +69+69 ${WORKDIR}/assets/ios.png     -mosaic ${WORKDIR}/ios.png

echo "DONE"