installer

#!/bin/bash
#############################################################
# Const Vars
#############################################################
DEFAULTINSTALLDIR="/opt/raspadmin"
DEFAULTPORT="443"
CONFIGDIR="/etc/raspadmin"

#############################################################
# Functions
#############################################################
function ask_question {
    message=$1
    has_constraints=0
    if [ "$2" !=  "" ] ; then
        constraints=$2
        has_constraints=1
    fi
    not_valid=1
    while [ $not_valid -ne 0 ] ; do
        echo -en  $message
        read var
        not_valid=0
        if [ $has_constraints -ne 0 ]; then
            not_valid=1
            for i in $(echo $constraints | sed -e "s/;/ /g"); do
                if [ "$var" == "$i" ]; then
                    ask_question=$var
                    return
                fi
            done
        fi
    done
    ask_question=$var
}

function get_boolean_value {
    mess=$(expr substr $1 1 1)
    if [ "$mess" == "y" ] || [ "$mess" == "Y" ] ; then
        echo -n "1"
    else
        echo -n "0"
    fi
}

function read_ini_file {
    inifile=$1
    pattern=$2
    [[ ! -f $inifile ]] && return 
    result=$(grep $pattern $inifile | cut -d'=' -f2)
    echo $result
}



#############################################################
# Checking requirements
#############################################################
clear
echo "---------------------------------------------"
echo "Welcome to raspadmin installer"
echo "---------------------------------------------"
echo ""
echo -e " Checking requirements : \e[34mIn progress\e[0m"
echo -e " Configuration         : \e[91mWaiting\e[0m"
echo -e " Copying files         : \e[91mWaiting\e[0m"
echo ""
echo ""
echo "----- Package configuration"
echo ""

if [ "$(whoami)" != "root" ] ; then
	echo "######### Error, you need to be root to execute this script"
	echo " Please use sudo"
	exit 2	

fi


dpkg -s python-pip > /dev/null 2>&1
pip=$?

dpkg -s python-dev > /dev/null 2>&1
dev=$?

if [ "$pip" == "1" ]; then
	echo "Installing pip"
	apt-get install python-pip
fi

if [ "$dev" == "1" ]; then
        echo "Installing python-dev"
        apt-get install python-dev

fi

echo "Installing needed libraries via pip"
pip install quik
pip install netifaces
pip install RPi.GPIO
pip install psutil
pip install requests

#############################################################
# Asking question
#############################################################
clear
echo "---------------------------------------------"
echo "Welcome to raspadmin installer"
echo "---------------------------------------------"
echo ""
echo -e " Checking requirements : \e[92mDone\e[0m"
echo -e " Configuration         : \e[34mIn progress\e[0m"
echo -e " Copying files         : \e[91mWaiting\e[0m"
echo ""
echo "Please answer few questions for the installation process"
echo ""
echo "----- Directory configuration"
echo ""

NO_CONSTRAINTS="y;Y;n;N;No;NO;no;yes;Yes;YEs;YES"
installdir=""

if [ -f /etc/raspadmin/raspadmin.conf ] ; then
	echo -e "Setup has detected an existing configuration file"
	ask_question "Would you like to keep it ? [y/n] [ \e[31mSelection y if you just want to update\e[0m ] : " $NO_CONSTRAINTS
	answer=$(get_boolean_value $ask_question)
	if [ $answer -eq 1 ] ; then
		installdir=$(read_ini_file "/etc/raspadmin/raspadmin.conf" "staticfiledir" | sed -e "s/static//g")
	fi
fi

if [ "$installdir" == "" ] ; then
	ask_question "Please enter the default home directory for user [ $DEFAULTINSTALLDIR ] : "
	installdir=$ask_question
	[[ "$installdir" == "" ]] && installdir=$DEFAULTINSTALLDIR
	
	ask_question "Please enter the port [ $DEFAULTPORT ] : "
	port=$ask_question
	[[ "$port" == "" ]] && port=$DEFAULTPORT
	
	ask_question "Use SSL [y/n] : " $NO_CONSTRAINTS
	ssl=$(get_boolean_value $ask_question)

	[[ ! -d $CONFIGDIR ]] && mkdir $CONFIGDIR

	
	if [ "$ssl" == "1" ] ; then 
		ssl=yes
		ask_question "Do you have your own certificate  [y/n] : " $NO_CONSTRAINTS
		owncert=$(get_boolean_value $ask_question)

		if [ $owncert -eq 1 ] ; then
			certificate_path="/"
			while [ ! -f "$certificate_path" ] ; do 
				ask_question "Path to your certificate : "
				certificate_path=$ask_question
				[[ -f $certificate_path ]] || echo "Invalid path"
			done
			key_path="/"
			while [ ! -f "$key_path" ] ; do
				ask_question "Path to your private key : "
				key_path=$ask_question
				[[ -f $key_path ]] || echo "Invalid path"
			done
		else
                        openssl genrsa  -out $CONFIGDIR/cert.key 1024
                        openssl req -new -key $CONFIGDIR/cert.key -out $CONFIGDIR/cert.csr
                        openssl x509 -req -days 4000 -in $CONFIGDIR/cert.csr -signkey $CONFIGDIR/cert.key -out $CONFIGDIR/cert.crt
                        rm -f $CONFIGDIR/cert.csr
                        certificate_path="$CONFIGDIR/cert.crt"
                        key_path="$CONFIGDIR/cert.key"
		fi
	else
		ssl="no"
		certificate_path=""
		key_path=""
	fi

	
	sed -e "s#\$PORT#$port#" -e "s#\$INSTALLDIR#$installdir#" -e "s#\$CERT#$certificate_path#" -e "s#\$KEY#$key_path#" -e "s#\$SSL#$ssl#"  conf/raspadmin.conf > $CONFIGDIR/raspadmin.conf

fi


clear
echo "---------------------------------------------"
echo "Welcome to raspadmin installer"
echo "---------------------------------------------"
echo ""
echo -e " Checking requirements : \e[92mDone\e[0m"
echo -e " Configuration         : \e[92mDone\e[0m"
echo -e " Copying files         : \e[34mWaiting\e[0m"
echo ""
echo "----- Installation"
echo ""

[[ -d /var/log/raspadmin ]] || mkdir /var/log/raspadmin

echo ""
echo "----- File copy"
[[ -d "$installdir" ]] ||  mkdir $installdir
cp -R sources/* $installdir

echo "----- Right management"
chown -R root:root $installdir
chmod -R 770 $installdir
chmod +x /etc/init.d/raspadmin
chmod 770 /var/log/raspadmin

echo "----- StartUp "
sed -e "s#\$INSTALLDIR#$installdir#" init/raspadmin > /etc/init.d/raspadmin
chmod 755 /etc/init.d/raspadmin
update-rc.d raspadmin defaults
echo ""

clear
echo "---------------------------------------------"
echo "Welcome to raspadmin installer"
echo "---------------------------------------------"
echo ""
echo -e " Checking requirements : \e[92mDone\e[0m"
echo -e " Configuration         : \e[92mDone\e[0m"
echo -e " Copying files         : \e[92mDone\e[0m"
echo ""
echo " To start the application : sudo service raspadmin start"
echo " To install modules (NAS, pyload, gateone, ...), proceed as following :"
echo "   * cd modules"
echo "   * sudo ./installer"
echo ""
echo " Please read information about this module in the wiki page of this project"
echo " https://github.com/air01a/raspadmin/wiki/Module"