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NetAlertX/install/pialert_install.sh
pucherot 9232f31778 Pi.Alert v3.02 
#114 - Fixed: UNIQUE constraint failed with Local MAC
2021-04-24 11:48:11 +02:00

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#!/bin/bash
# ------------------------------------------------------------------------------
# Pi.Alert
# Open Source Network Guard / WIFI & LAN intrusion detector
#
# pialert_install.sh - Installation script
# ------------------------------------------------------------------------------
# Puche 2021 pi.alert.application@gmail.com GNU GPLv3
# ------------------------------------------------------------------------------
# ------------------------------------------------------------------------------
# Variables
# ------------------------------------------------------------------------------
COLS=70
ROWS=12
INSTALL_DIR=~
PIALERT_HOME="$INSTALL_DIR/pialert"
LIGHTTPD_CONF_DIR="/etc/lighttpd"
WEBROOT="/var/www/html"
PIALERT_DEFAULT_PAGE=false
LOG="pialert_install_`date +"%Y-%m-%d_%H-%M"`.log"
# MAIN_IP=`ip -o route get 1 | sed -n 's/.*src \([0-9.]\+\).*/\1/p'`
MAIN_IP=`ip -o route get 1 | sed 's/^.*src \([^ ]*\).*$/\1/;q'`
PIHOLE_INSTALL=false
PIHOLE_ACTIVE=false
DHCP_ACTIVATE=false
DHCP_ACTIVE=false
DHCP_RANGE_START="192.168.1.200"
DHCP_RANGE_END="192.168.1.251"
DHCP_ROUTER="192.168.1.1"
DHCP_LEASE="1"
DHCP_DOMAIN="local"
USE_PYTHON_VERSION=0
PYTHON_BIN=python
FIRST_SCAN_KNOWN=true
REPORT_MAIL=False
REPORT_TO=user@gmail.com
SMTP_SERVER=smtp.gmail.com
SMTP_PORT=587
SMTP_USER=user@gmail.com
SMTP_PASS=password
DDNS_ACTIVE=False
DDNS_DOMAIN='your_domain.freeddns.org'
DDNS_USER='dynu_user'
DDNS_PASSWORD='A0000000B0000000C0000000D0000000'
DDNS_UPDATE_URL='https://api.dynu.com/nic/update?'
# ------------------------------------------------------------------------------
# Main
# ------------------------------------------------------------------------------
main() {
print_superheader "Pi.Alert Installation"
log "`date`"
log "Logfile: $LOG"
check_pialert_home
ask_config
set -e
install_pihole
activate_DHCP
add_pialert_DNS
install_lighttpd
install_arpscan
install_python
install_pialert
print_header "Installation process finished"
print_msg "Use: - http://pi.alert/"
print_msg " - http://$MAIN_IP/pialert/"
print_msg "To access Pi.Alert web"
print_msg ""
move_logfile
}
# ------------------------------------------------------------------------------
# Ask config questions
# ------------------------------------------------------------------------------
ask_config() {
# Ask installation
ask_yesno "This script will install Pi.Alert in this system using this path:\n$PIALERT_HOME" \
"Do you want to continue ?"
if ! $ANSWER ; then
exit 1
fi
# Ask Pi-hole Installation
PIHOLE_ACTIVE=false
if [ -e /usr/local/bin/pihole ] || [ -e /etc/pihole ]; then
PIHOLE_ACTIVE=true
fi
PIHOLE_INSTALL=false
if $PIHOLE_ACTIVE ; then
msgbox "Pi-hole is already installed in this system." \
"Perfect: Pi-hole Installation is not necessary"
else
ask_yesno "Pi-hole is not installed." \
"Do you want to install Pi-hole before installing Pi.Alert ?" "YES"
if $ANSWER ; then
PIHOLE_INSTALL=true
msgbox "In the installation wizard of Pi-hole, select this options" \
"'Install web admin interface' & 'Install web server lighttpd'"
fi
fi
# Ask DHCP Activation
DHCP_ACTIVE=false
DHCP_ACTIVATE=false
if $PIHOLE_ACTIVE ; then
DHCP_ACTIVE=`sudo grep DHCP_ACTIVE /etc/pihole/setupVars.conf | awk -F= '/./{print $2}'`
if [ "$DHCP_ACTIVE" = "" ] ; then DHCP_ACTIVE=false; fi
if ! $DHCP_ACTIVE ; then
ask_yesno "Pi-hole DHCP server is not active." \
"Do you want to activate Pi-hole DHCP server ?"
if $ANSWER ; then
DHCP_ACTIVATE=true
fi
fi
elif $PIHOLE_INSTALL ; then
ask_yesno "Pi-hole installation." \
"Do you want to activate Pi-hole DHCP server ?"
if $ANSWER ; then
DHCP_ACTIVATE=true
fi
fi
if $DHCP_ACTIVATE ; then
msgbox "Default DHCP options will be used. Range=$DHCP_RANGE_START - $DHCP_RANGE_END / Router=$DHCP_ROUTER / Domain=$DHCP_DOMAIN / Leases=$DHCP_LEASE h." \
"Yo can change this values in your Pi-hole Admin Portal"
msgbox "Make sure your router's DHCP server is disabled" \
"when using the Pi-hole DHCP server!"
fi
# Ask Pi.Alert deafault page
PIALERT_DEFAULT_PAGE=false
if ! $PIHOLE_ACTIVE && ! $PIHOLE_INSTALL; then
ask_yesno "As Pi-hole is not going to be available in this system," \
"Do you want to use Pi.Alert as default web server page ?" "YES"
if $ANSWER ; then
PIALERT_DEFAULT_PAGE=true
fi
fi
# Ask Python version
ask_option "What Python version do you want to use ?" \
3 \
0 " - Use Python already installed in the system (DEFAULT)" \
2 " - Use Python 2" \
3 " - Use Python 3"
if [ "$ANSWER" = "" ] ; then
USE_PYTHON_VERSION=0
else
USE_PYTHON_VERSION=$ANSWER
fi
# Ask first scan options
ask_yesno "First Scan options" \
"Do you want to mark the new devices as known devices during the first scan?" "YES"
FIRST_SCAN_KNOWN=$ANSWER
# Ask e-mail notification config
MAIL_REPORT=false
ask_yesno "Pi.Alert can notify you by e-mail when a network event occurs" \
"Do you want to activate this feature ?"
if $ANSWER ; then
ask_yesno "e-mail notification needs a SMTP server (i.e. smtp.gmail.com)" \
"Do you want to continue activating this feature ?"
MAIL_REPORT=$ANSWER
fi
if $MAIL_REPORT ; then
ask_input "" "Notify alert to this e-mail address:" "user@gmail.com"
REPORT_TO=$ANSWER
ask_input "" "SMTP server:" "smtp.gmail.com"
SMTP_SERVER=$ANSWER
ask_input "" "SMTP user:" "user@gmail.com"
SMTP_USER=$ANSWER
ask_input "" "SMTP password:" "password"
SMTP_PASS=$ANSWER
fi
# Ask Dynamic DNS config
DDNS_ACTIVE=false
ask_yesno "Pi.Alert can update your Dynamic DNS IP (i.e with www.dynu.net)" \
"Do you want to activate this feature ?"
if $ANSWER ; then
ask_yesno "Dynamics DNS updater needs a DNS with IP Update Protocol" \
"(i.e with www.dynu.net). Do you want to continue ?"
DDNS_ACTIVE=$ANSWER
fi
if $DDNS_ACTIVE ; then
ask_input "" "Domain to update:" "your_domain.freeddns.org"
DDNS_DOMAIN=$ANSWER
ask_input "" "DDNS user:" "dynu_user"
DDNS_USER=$ANSWER
ask_input "" "DDNS password:" "A0000000B0000000C0000000D0000000"
DDNS_PASSWORD=$ANSWER
ask_input "" "URL to update DDNS IP:" "https://api.dynu.com/nic/update?"
DDNS_UPDATE_URL=$ANSWER
fi
# Final config message
msgbox "Configuration finished. To update the configuration, edit file:" \
"$PIALERT_HOME/config/pialert.conf"
msgbox "" "The installation will start now"
}
# ------------------------------------------------------------------------------
# Install Pi-hole
# ------------------------------------------------------------------------------
install_pihole() {
print_header "Pi-hole"
if ! $PIHOLE_INSTALL ; then
return
fi
print_msg "- Checking if Pi-hole is installed..."
if [ -e /usr/local/bin/pihole ] || [ -e /etc/pihole ]; then
print_msg " - Pi-hole already installed"
print_msg "`pihole -v 2>&1`"
print_msg ""
PIHOLE_ACTIVE=true
return
fi
print_msg "- Installing Pi-hole..."
print_msg " - Pi-hole has its own logfile"
curl -sSL https://install.pi-hole.net | bash
print_msg ""
PIHOLE_ACTIVE=true
}
# ------------------------------------------------------------------------------
# Activate DHCP
# ------------------------------------------------------------------------------
activate_DHCP() {
if ! $DHCP_ACTIVATE ; then
return
fi
if ! $PIHOLE_ACTIVE ; then
return
fi
print_msg "- Checking if DHCP is active..."
if [ -e /etc/pihole ]; then
DHCP_ACTIVE= `grep DHCP_ACTIVE /etc/pihole/setupVars.conf | awk -F= '/./{print $2}'`
fi
if $DHCP_ACTIVE ; then
print_msg " - DHCP already active"
fi
print_msg "- Activating DHCP..."
sudo pihole -a enabledhcp "$DHCP_RANGE_START" "$DHCP_RANGE_END" "$DHCP_ROUTER" "$DHCP_LEASE" "$DHCP_DOMAIN" 2>&1 >> "$LOG"
DHCP_ACTIVE=true
}
# ------------------------------------------------------------------------------
# Add Pi.Alert DNS
# ------------------------------------------------------------------------------
add_pialert_DNS() {
if ! $PIHOLE_ACTIVE ; then
return
fi
print_msg "- Checking if 'pi.alert' is configured in Local DNS..."
if grep -Fq pi.alert /etc/pihole/custom.list; then
print_msg " - 'pi.alert' already in Local DNS..."
return
fi
print_msg "- Adding 'pi.alert' to Local DNS..."
sudo sh -c "echo $MAIN_IP pi.alert >> /etc/pihole/custom.list" 2>&1 >> "$LOG"
sudo pihole restartdns 2>&1 >> "$LOG"
}
# ------------------------------------------------------------------------------
# Install Lighttpd & PHP
# ------------------------------------------------------------------------------
install_lighttpd() {
print_header "Lighttpd & PHP"
print_msg "- Installing apt-utils..."
sudo apt-get install apt-utils -y 2>&1 >> "$LOG"
print_msg "- Installing lighttpd..."
sudo apt-get install lighttpd -y 2>&1 >> "$LOG"
print_msg "- Installing PHP..."
sudo apt-get install php php-cgi php-fpm php-sqlite3 -y 2>&1 >> "$LOG"
print_msg "- Activating PHP..."
ERRNO=0
sudo lighttpd-enable-mod fastcgi-php 2>&1 >>"$LOG" || ERRNO=$?
log_no_screen "-- Command error code: $ERRNO"
if [ "$ERRNO" = "1" ] ; then
process_error "Error activating PHP"
fi
print_msg "- Restarting lighttpd..."
sudo service lighttpd restart 2>&1 >> "$LOG"
# sudo /etc/init.d/lighttpd restart 2>&1 >> "$LOG"
print_msg "- Installing sqlite3..."
sudo apt-get install sqlite3 -y 2>&1 >> "$LOG"
}
# ------------------------------------------------------------------------------
# Install arp-scan & dnsutils
# ------------------------------------------------------------------------------
install_arpscan() {
print_header "arp-scan & dnsutils"
print_msg "- Installing arp-scan..."
sudo apt-get install arp-scan -y 2>&1 >> "$LOG"
print_msg "- Testing arp-scan..."
sudo arp-scan -l | head -n -3 | tail +3 | tee -a "$LOG"
print_msg "- Installing dnsutils & net-tools..."
sudo apt-get install dnsutils net-tools -y 2>&1 >> "$LOG"
}
# ------------------------------------------------------------------------------
# Install Python
# ------------------------------------------------------------------------------
install_python() {
print_header "Python"
check_python_versions
if [ $USE_PYTHON_VERSION -eq 0 ] ; then
print_msg "- Using the available Python version installed"
if $PYTHON3 ; then
print_msg " - Python 3 is available"
USE_PYTHON_VERSION=3
elif $PYTHON2 ; then
print_msg " - Python 2 is available"
USE_PYTHON_VERSION=2
else
print_msg " - Python is not available in this system"
print_msg " - Python 3 will be installed"
USE_PYTHON_VERSION=3
fi
echo ""
fi
if [ $USE_PYTHON_VERSION -eq 2 ] ; then
if $PYTHON2 ; then
print_msg "- Using Python 2"
else
print_msg "- Installing Python 2..."
sudo apt-get install python -y 2>&1 >> "$LOG"
fi
PYTHON_BIN="python"
elif [ $USE_PYTHON_VERSION -eq 3 ] ; then
if $PYTHON3 ; then
print_msg "- Using Python 3"
else
print_msg "- Installing Python 3..."
sudo apt-get install python3 -y 2>&1 >> "$LOG"
fi
PYTHON_BIN="python3"
else
process_error "Unknown Python version to use: $USE_PYTHON_VERSION"
fi
}
# ------------------------------------------------------------------------------
# Check Python versions available
# ------------------------------------------------------------------------------
check_python_versions() {
print_msg "- Checking Python 2..."
if [ -f /usr/bin/python ] ; then
print_msg " - Python 2 is installed"
print_msg " - `python -V 2>&1`"
PYTHON2=true
else
print_msg " - Python 2 is NOT installed"
PYTHON2=false
fi
echo ""
print_msg "- Checking Python 3..."
if [ -f /usr/bin/python3 ] ; then
print_msg " - Python 3 is installed"
print_msg " - `python3 -V 2>&1`"
PYTHON3=true
else
print_msg " - Python 3 is NOT installed"
PYTHON3=false
fi
echo ""
}
# ------------------------------------------------------------------------------
# Install Pi.Alert
# ------------------------------------------------------------------------------
install_pialert() {
print_header "Pi.Alert"
download_pialert
configure_pialert
test_pialert
add_jobs_to_crontab
publish_pialert
set_pialert_default_page
}
# ------------------------------------------------------------------------------
# Download and uncompress Pi.Alert
# ------------------------------------------------------------------------------
download_pialert() {
if [ -f "$INSTALL_DIR/pialert_latest.tar" ] ; then
print_msg "- Deleting previous downloaded tar file"
rm -r "$INSTALL_DIR/pialert_latest.tar"
fi
print_msg "- Downloading installation tar file..."
curl -Lo "$INSTALL_DIR/pialert_latest.tar" https://github.com/pucherot/Pi.Alert/raw/main/tar/pialert_latest.tar
echo ""
print_msg "- Uncompressing tar file"
tar xf "$INSTALL_DIR/pialert_latest.tar" -C "$INSTALL_DIR" --checkpoint=100 --checkpoint-action="ttyout=." 2>&1 >> "$LOG"
echo ""
print_msg "- Deleting downloaded tar file..."
rm -r "$INSTALL_DIR/pialert_latest.tar"
}
# ------------------------------------------------------------------------------
# Configure Pi.Alert parameters
# ------------------------------------------------------------------------------
configure_pialert() {
print_msg "- Settting Pi.Alert config file"
set_pialert_parameter PIALERT_PATH "'$PIALERT_HOME'"
set_pialert_parameter REPORT_MAIL "$REPORT_MAIL"
set_pialert_parameter REPORT_TO "'$REPORT_TO'"
set_pialert_parameter SMTP_SERVER "'$SMTP_SERVER'"
set_pialert_parameter SMTP_PORT "$SMTP_PORT"
set_pialert_parameter SMTP_USER "'$SMTP_USER'"
set_pialert_parameter SMTP_PASS "'$SMTP_PASS'"
set_pialert_parameter DDNS_ACTIVE "$DDNS_ACTIVE"
set_pialert_parameter DDNS_DOMAIN "'$DDNS_DOMAIN'"
set_pialert_parameter DDNS_USER "'$DDNS_USER'"
set_pialert_parameter DDNS_PASSWORD "'$DDNS_PASSWORD'"
set_pialert_parameter DDNS_UPDATE_URL "'$DDNS_UPDATE_URL'"
set_pialert_parameter PIHOLE_ACTIVE "$PIHOLE_ACTIVE"
set_pialert_parameter DHCP_ACTIVE "$DHCP_ACTIVE"
}
# ------------------------------------------------------------------------------
# Set Pi.Alert parameter
# ------------------------------------------------------------------------------
set_pialert_parameter() {
if [ "$2" = "false" ] ; then
VALUE="False"
elif [ "$2" = "true" ] ; then
VALUE="True"
else
VALUE="$2"
fi
sed -i "/^$1.*=/s|=.*|= $VALUE|" $PIALERT_HOME/config/pialert.conf 2>&1 >> "$LOG"
}
# ------------------------------------------------------------------------------
# Test Pi.Alert
# ------------------------------------------------------------------------------
test_pialert() {
print_msg "- Testing Pi.Alert HW vendors database update process..."
print_msg "*** PLEASE WAIT A COUPLE OF MINUTES..."
stdbuf -i0 -o0 -e0 $PYTHON_BIN $PIALERT_HOME/back/pialert.py update_vendors_silent 2>&1 | tee -ai "$LOG"
echo ""
print_msg "- Testing Pi.Alert Internet IP Lookup..."
stdbuf -i0 -o0 -e0 $PYTHON_BIN $PIALERT_HOME/back/pialert.py internet_IP 2>&1 | tee -ai "$LOG"
echo ""
print_msg "- Testing Pi.Alert Network scan..."
print_msg "*** PLEASE WAIT A COUPLE OF MINUTES..."
stdbuf -i0 -o0 -e0 $PYTHON_BIN $PIALERT_HOME/back/pialert.py 1 2>&1 | tee -ai "$LOG"
if $FIRST_SCAN_KNOWN ; then
echo ""
print_msg "- Set devices as Known devices..."
sqlite3 $PIALERT_HOME/db/pialert.db "UPDATE Devices SET dev_NewDevice=0, dev_AlertEvents=0 WHERE dev_NewDevice=1" 2>&1 >> "$LOG"
fi
}
# ------------------------------------------------------------------------------
# Add Pi.Alert jobs to crontab
# ------------------------------------------------------------------------------
add_jobs_to_crontab() {
if crontab -l 2>/dev/null | grep -Fq pialert ; then
print_msg "- Pi.Alert crontab jobs already exists. This is your crontab:"
crontab -l | grep -F pialert 2>&1 | tee -ai "$LOG"
return
fi
print_msg "- Adding jobs to the crontab..."
if [ $USE_PYTHON_VERSION -eq 3 ] ; then
sed -i "s/\<python\>/$PYTHON_BIN/g" $PIALERT_HOME/install/pialert.cron
fi
(crontab -l 2>/dev/null || : ; cat $PIALERT_HOME/install/pialert.cron) | crontab -
}
# ------------------------------------------------------------------------------
# Publish Pi.Alert web
# ------------------------------------------------------------------------------
publish_pialert() {
if [ -e "$WEBROOT/pialert" ] || [ -L "$WEBROOT/pialert" ] ; then
print_msg "- Deleting previous Pi.Alert site"
sudo rm -r "$WEBROOT/pialert" 2>&1 >> "$LOG"
fi
print_msg "- Setting permissions..."
sudo chgrp -R www-data $PIALERT_HOME/db 2>&1 >> "$LOG"
chmod -R g+rwx $PIALERT_HOME/db 2>&1 >> "$LOG"
chmod go+x $INSTALL_DIR 2>&1 >> "$LOG"
print_msg "- Publishing Pi.Alert web..."
sudo ln -s "$PIALERT_HOME/front" "$WEBROOT/pialert" 2>&1 >> "$LOG"
print_msg "- Configuring http://pi.alert/ redirection..."
if [ -e "$LIGHTTPD_CONF_DIR/conf-available/pialert_front.conf" ] ; then
sudo rm -r "$LIGHTTPD_CONF_DIR/conf-available/pialert_front.conf" 2>&1 >> "$LOG"
fi
sudo cp "$PIALERT_HOME/install/pialert_front.conf" "$LIGHTTPD_CONF_DIR/conf-available" 2>&1 >> "$LOG"
if [ -e "$LIGHTTPD_CONF_DIR/conf-enabled/pialert_front.conf" ] || \
[ -L "$LIGHTTPD_CONF_DIR/conf-enabled/pialert_front.conf" ] ; then
sudo rm -r "$LIGHTTPD_CONF_DIR/conf-enabled/pialert_front.conf" 2>&1 >> "$LOG"
fi
sudo ln -s ../conf-available/pialert_front.conf "$LIGHTTPD_CONF_DIR/conf-enabled/pialert_front.conf" 2>&1 >> "$LOG"
print_msg "- Restarting lighttpd..."
sudo sudo service lighttpd restart 2>&1 >> "$LOG"
# sudo /etc/init.d/lighttpd restart 2>&1 >> "$LOG"
}
# ------------------------------------------------------------------------------
# Set Pi.Alert the default web server page
# ------------------------------------------------------------------------------
set_pialert_default_page() {
if ! $PIALERT_DEFAULT_PAGE ; then
return
fi
print_msg "- Setting Pi.Alert as default web server page..."
if [ -e "$WEBROOT/index.lighttpd.html" ] ; then
if [ -e "$WEBROOT/index.lighttpd.html.orig" ] ; then
sudo rm "$WEBROOT/index.lighttpd.html" 2>&1 >> "$LOG"
else
sudo mv "$WEBROOT/index.lighttpd.html" "$WEBROOT/index.lighttpd.html.orig" 2>&1 >> "$LOG"
fi
fi
if [ -e "$WEBROOT/index.html" ] || [ -L "$WEBROOT/index.html" ] ; then
if [ -e "$WEBROOT/index.html.orig" ] ; then
sudo rm "$WEBROOT/index.html" 2>&1 >> "$LOG"
else
sudo mv "$WEBROOT/index.html" "$WEBROOT/index.html.orig" 2>&1 >> "$LOG"
fi
fi
sudo cp "$PIALERT_HOME/install/index.html" "$WEBROOT/index.html" 2>&1 >>"$LOG"
}
# ------------------------------------------------------------------------------
# Check Pi.Alert Installation Path
# ------------------------------------------------------------------------------
check_pialert_home() {
mkdir -p "$INSTALL_DIR"
if [ ! -d "$INSTALL_DIR" ] ; then
process_error "Installation path does not exists: $INSTALL_DIR"
fi
if [ -e "$PIALERT_HOME" ] || [ -L "$PIALERT_HOME" ] ; then
process_error "Pi.Alert path already exists: $PIALERT_HOME"
fi
}
# ------------------------------------------------------------------------------
# Move Logfile
# ------------------------------------------------------------------------------
move_logfile() {
NEWLOG="$PIALERT_HOME/log/$LOG"
mkdir -p "$PIALERT_HOME/log"
mv $LOG $NEWLOG
LOG="$NEWLOG"
NEWLOG=""
}
# ------------------------------------------------------------------------------
# ASK
# ------------------------------------------------------------------------------
msgbox() {
LINE1=$(printf "%*s" $(((${#1}+$COLS-5)/2)) "$1")
LINE2=$(printf "%*s" $(((${#2}+$COLS-5)/2)) "$2")
END_DIALOG=false
while ! $END_DIALOG ; do
whiptail --title "Pi.Alert Installation" --msgbox "$LINE1\\n\\n$LINE2" $ROWS $COLS
BUTTON=$?
ask_cancel
ANSWER=true
done
}
ask_yesno() {
LINE1=$(printf "%*s" $(((${#1}+$COLS-5)/2)) "$1")
LINE2=$(printf "%*s" $(((${#2}+$COLS-5)/2)) "$2")
if [ "$3" = "YES" ]; then
DEF_BUTTON=""
else
DEF_BUTTON="--defaultno"
fi
END_DIALOG=false
while ! $END_DIALOG ; do
whiptail --title "Pi.Alert Installation" --yesno $DEF_BUTTON "$LINE1\\n\\n$LINE2" $ROWS $COLS
BUTTON=$?
ask_cancel
done
if [ "$BUTTON" = "0" ] ; then
ANSWER=true
else
ANSWER=false
fi
}
ask_option() {
MENU_ARGS=("$@")
MENU_ARGS=("${MENU_ARGS[@]:1}")
END_DIALOG=false
while ! $END_DIALOG ; do
ANSWER=$(whiptail --title "Pi.Alert Installation" --menu "$1" $ROWS $COLS "${MENU_ARGS[@]}" 3>&2 2>&1 1>&3 )
BUTTON=$?
ask_cancel CANCEL
done
}
ask_input() {
LINE1=$(printf "%*s" $(((${#1}+$COLS-5)/2)) "$1")
LINE2=$(printf "%*s" $(((${#2}+$COLS-5)/2)) "$2")
END_DIALOG=false
while ! $END_DIALOG ; do
ANSWER=$(whiptail --title "Pi.Alert Installation" --inputbox "$LINE1\\n\\n$LINE2" $ROWS $COLS "$3" 3>&2 2>&1 1>&3 )
BUTTON=$?
ask_cancel CANCEL
if $END_DIALOG && [ "$ANSWER" = "" ] ; then
msgbox "" "You must enter a value"
END_DIALOG=false
fi
done
}
ask_cancel() {
LINE0="Do you want to cancel the installation process"
LINE0=$(printf "\n\n%*s" $(((${#LINE0}+$COLS-5)/2)) "$LINE0")
if [ "$BUTTON" = "1" ] && [ "$1" = "CANCEL" ] ; then BUTTON="255"; fi
if [ "$BUTTON" = "255" ] ; then
whiptail --title "Pi.Alert Installation" --yesno --defaultno "$LINE0" $ROWS $COLS
if [ "$?" = "0" ] ; then
process_error "Installation Aborted by User"
fi
else
END_DIALOG=true
fi
}
# ------------------------------------------------------------------------------
# Log
# ------------------------------------------------------------------------------
log() {
echo "$1" | tee -a "$LOG"
}
log_no_screen () {
echo "$1" >> "$LOG"
}
log_only_screen () {
echo "$1"
}
print_msg() {
log_no_screen ""
log "$1"
}
print_superheader() {
log ""
log "############################################################"
log " $1"
log "############################################################"
}
print_header() {
log ""
log "------------------------------------------------------------"
log " $1"
log "------------------------------------------------------------"
}
process_error() {
log ""
log "************************************************************"
log "************************************************************"
log "** ERROR INSTALLING PI.ALERT **"
log "************************************************************"
log "************************************************************"
log ""
log "$1"
log ""
log "Use 'cat $LOG' to view installation log"
log ""
# msgbox "****** ERROR INSTALLING Pi.ALERT ******" "$1"
exit 1
}
# ------------------------------------------------------------------------------
main
exit 0
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