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adsb-receiver/bash/extras/duckdns.sh

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8.5 KiB
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#!/bin/bash
#####################################################################################
# ADS-B RECEIVER #
#####################################################################################
# #
# This script is not meant to be executed directly. #
# Instead execute install.sh to begin the installation process. #
# #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# #
# Copyright (c) 2015-2016 Joseph A. Prochazka #
# #
# 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 above copyright notice and this permission notice shall be included in all #
# copies or substantial portions of the Software. #
# #
# 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. #
# #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
## SET INSTALLATION VARIABLES
RECEIVER_ROOT_DIRECTORY="${PWD}"
RECEIVER_BASH_DIRECTORY="${RECEIVER_ROOT_DIRECTORY}/bash"
RECEIVER_BUILD_DIRECTORY="${RECEIVER_ROOT_DIRECTORY}/build"
# Component specific variables.
COMPONENT_NAME="Duck DNS"
COMPONENT_BUILD_DIRECTORY="${RECEIVER_BUILD_DIRECTORY}/duckdns"
### INCLUDE EXTERNAL SCRIPTS
source ${RECEIVER_BASH_DIRECTORY}/variables.sh
source ${RECEIVER_BASH_DIRECTORY}/functions.sh
if [[ "${RECEIVER_AUTOMATED_INSTALL}" = "true" ]] && [[ -s "${RECEIVER_CONFIGURATION_FILE}" ]] ; then
source ${RECEIVER_CONFIGURATION_FILE}
fi
### BEGIN SETUP
if [[ "${RECEIVER_AUTOMATED_INSTALL}" = "false" ]] ; then
clear
echo -e "\n\e[91m ${RECEIVER_PROJECT_TITLE}"
fi
echo -e ""
echo -e "\e[92m Setting up ${COMPONENT_NAME}..."
echo -e "\e[93m ------------------------------------------------------------------------------\e[96m"
echo -e ""
if [[ "${RECEIVER_AUTOMATED_INSTALL}" = "false" ]] ; then
whiptail --backtitle "${RECEIVER_PROJECT_TITLE}" --title "${COMPONENT_NAME} Dynamic DNS" --yesno "${COMPONENT_NAME} is a free dynamic DNS service hosted on Amazon VPC.\n\nPLEASE NOTE:\n\nBefore continuing this setup it is recommended that you visit the ${COMPONENT_NAME} website and signup for then setup a sub domain which will be used by this device. You will need both the domain and token supplied to you after setting up your account.\n\n http://www.duckdns.org\n\nContinue with ${COMPONENT_NAME} update script setup?" 18 78
if [[ $? -eq 1 ]] ; then
# Setup has been halted by the user.
echo -e "\e[91m \e[5mINSTALLATION HALTED!\e[25m"
echo -e " Setup has been halted at the request of the user."
echo -e ""
echo -e "\e[93m ------------------------------------------------------------------------------\e[96m"
echo -e "\e[92m ${COMPONENT_NAME} setup halted.\e[39m"
echo -e ""
read -p "Press enter to continue..." CONTINUE
exit 1
fi
fi
echo -e "\e[95m Setting up ${COMPONENT_NAME} on this device...\e[97m"
echo -e ""
### CHECK FOR PREREQUISITE PACKAGES
# Check that the required packages are installed.
echo -e ""
echo -e "\e[95m Installing packages needed to build and fulfill dependencies...\e[97m"
echo -e ""
CheckPackage cron
CheckPackage curl
### CONFIRM SETTINGS
# Confirm settings with user.
if [[ "${RECEIVER_AUTOMATED_INSTALL}" = "false" ]] ; then
# Ask for the user sub domain to be assigned to this device.
DUCKDNS_DOMAIN_TITLE="Duck DNS Sub Domain"
while [[ -z "${DUCKDNS_DOMAIN}" ]] ; do
DUCKDNS_DOMAIN=$(whiptail --backtitle "${RECEIVER_PROJECT_TITLE}" --title "${DUCKDNS_DOMAIN_TITLE}" --nocancel --inputbox "\nPlease enter the Duck DNS sub domain you selected after registering.\nIf you do not have one yet visit http://www.ducknds.org to obtain one." 9 78 3>&1 1>&2 2>&3)
DUCKDNS_DOMAIN_TITLE="Duck DNS Sub Domain (REQUIRED)"
done
# Ask for the Duck DNS token to be assigned to this receiver.
DUCKDNS_TOKEN_TITLE="Duck DNS Token"
while [[ -z "${DUCKDNS_TOKEN}" ]] ; do
DUCKDNS_TOKEN=$(whiptail --backtitle "${RECEIVER_PROJECT_TITLE}" --title "${DUCKDNS_TOKEN_TITLE}" --nocancel --inputbox "\nPlease enter your Duck DNS token." 8 78 3>&1 1>&2 2>&3)
DUCKDNS_TOKEN_TITLE="Duck DNS Token (REQUIRED)"
done
fi
### PROJECT BUILD DIRECTORY
# Create the build directory if it does not already exist.
if [[ ! -d "${RECEIVER_BUILD_DIRECTORY}" ]] ; then
echo -e "\e[94m Creating the ADS-B Receiver Project build directory...\e[97m"
mkdir -vp ${RECEIVER_BUILD_DIRECTORY} 2>&1
fi
# Create a component directory within the build directory if it does not already exist.
if [[ ! -d "${COMPONENT_BUILD_DIRECTORY}" ]] ; then
echo -e "\e[94m Creating the directory ${COMPONENT_BUILD_DIRECTORY}...\e[97m"
mkdir -vp ${COMPONENT_BUILD_DIRECTORY} 2>&1
fi
### DOWNLOAD SOURCE
### BUILD AND INSTALL
# Create then set permissions on the file duck.sh.
echo -e "\e[94m Creating the ${COMPONENT_NAME} update script...\e[97m"
tee ${COMPONENT_BUILD_DIRECTORY}/duck.sh > /dev/null <<EOF
echo url="https://www.duckdns.org/update?domains=${DUCKDNS_DOMAIN}&token=${DUCKDNS_TOKEN}&ip=" | curl -k -o ${COMPONENT_BUILD_DIRECTORY}/duck.log -K -
EOF
echo -e "\e[94m Setting execute permissions for only this user on the ${COMPONENT_NAME} update script...\e[97m"
chmod -v 700 ${COMPONENT_BUILD_DIRECTORY}/duck.sh 2>&1
### CREATE SCRIPTS
# Add job to the users crontab if it does not exist.
echo -e "\e[94m Adding the ${COMPONENT_NAME} update command to your crontab if it does not exist already...\e[97m"
COMMAND="${COMPONENT_BUILD_DIRECTORY}/duck.sh >/dev/null 2>&1"
JOB="*/5 * * * * ${COMMAND}"
# Should only add the job if the COMMAND does not already exist in the users crontab.
(crontab -l | grep -v -F "${COMMAND}" ; echo "${JOB}") | crontab -
# The following command should remove the job from the users crontab.
#(crontab -l | grep -v -F "${COMMAND}" ) | crontab -
### START SCRIPTS
echo -e ""
echo -e "\e[95m Starting ${COMPONENT_NAME}...\e[97m"
echo -e ""
# Kill any currently running instances.
PROCS="duck.sh"
for PROC in ${PROCS} ; do
PIDS=`ps -efww | grep -w "${PROC} " | awk -vpid=$$ '$2 != pid { print $2 }'`
if [[ -n "${PIDS}" ]] ; then
echo -e "\e[94m Killing any running ${PROC} processes...\e[97m"
sudo kill ${PIDS} 2>&1
sudo kill -9 ${PIDS} 2>&1
fi
unset PIDS
done
# Run the Duck DNS update script for the first time..
echo -e "\e[94m Executing the ${COMPONENT_NAME} update script...\e[97m"
echo -e ""
${COMPONENT_BUILD_DIRECTORY}/duck.sh 2>&1
echo -e ""
### SETUP COMPLETE
# Return to the project root directory.
echo -e "\e[94m Entering the ADS-B Receiver Project root directory...\e[97m"
cd ${RECEIVER_ROOT_DIRECTORY} 2>&1
echo -e ""
echo -e "\e[93m ------------------------------------------------------------------------------"
echo -e "\e[92m ${COMPONENT_NAME} setup is complete.\e[39m"
echo -e ""
if [[ "${RECEIVER_AUTOMATED_INSTALL}" = "false" ]] ; then
read -p "Press enter to continue..." CONTINUE
fi
#exit 0
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