FreenetIS

#!/bin/bash

################################################################################

# #

# Author: Michal Kliment #

# Description: This script generates config file of ISC DHCP server #

# from FreenetIS #

# #

# Version: 0.1.0 #

# #

################################################################################

CONFIG=/etc/freenetis/freenetis-dhcp.conf

# Load variables

if [ -e $CONFIG ]; then

. $CONFIG || true

TMPFILE=`mktemp`

else

echo "`date -R` Config file is missing at path $CONFIG. Terminating..."

exit 0

fi

# check config

if [[ ! "$DEVICE_ID" =~ ^[0-9]+$ ]] || [ $DEVICE_ID -lt 1 ]; then

echo "[ERROR] `date -R` Wrong configuration (ID not set properly)"

exit 1

fi

# download

rm -f "$TMPFILE"

echo "[INFO] `date -R` Downloading ISC DHCP SERVER config from (${PATH_FN})"

status=`wget --no-check-certificate --server-response -q "$FULL_PATH" -O "$TMPFILE" 2>&1 | awk '/^ HTTP/{print $2}'`

# make sure that config exist

touch "$DHCP_CONF"

# check download

if [ "$status" = "200" ]; then

# config has been change

if [ `diff "$TMPFILE" "$DHCP_CONF" | wc -l` -gt 0 ]; then

echo "[INFO] `date -R` Downloaded (code: $status)"

echo "[INFO] `date -R` Backuping old config to $DHCP_CONF.save"

mv -f "$DHCP_CONF" "$DHCP_CONF".save

echo "[INFO] `date -R` Loading new config to $DHCP_CONF.save..."

mv -f "$TMPFILE" "$DHCP_CONF"

echo "[INFO] `date -R` Restarting ISC DHCP server"

service isc-dhcp-server restart 2>&1 >/dev/null

else

echo "[ERROR] `date -R` No change -> keeping old configuration"

fi

else

echo "[ERROR] `date -R` Download failed (code: $status)"

fi

################################################################################

# #

# Author: Michal Kliment, Ondrej Fibich #

# Description: This script generates config file of ISC DHCP server #

# from FreenetIS. #

# #

################################################################################

# Base PATH_FN to running FreenetIS instance

PATH_FN=http://localhost/freenetis

# ID of device from FreenetIS

DEVICE_ID=0

# Log file, change to /dev/null to disable logging

LOG_FILE=/var/log/freenetis-dhcp.log

# Filename with ISC DHCP server config

DHCP_CONF="/etc/dhcp/dhcpd.conf"

# Full path [DO NOT CHANGE THIS VARIABLE!!!]

FULL_PATH=$PATH_FN"/index.php/en/devices/export/"$DEVICE_ID"/debian-etc-dhcp-dhcpd/text"