#!/bin/bash
#
## Piet's Host ## - ©2017, https://piets-host.de
#
# Tested on:
# CentOS 6.8 & 7.3,
# Ubuntu 12.04, 14.04, 16.04,
# Debian 7 & 8,
# Fedora 23, 24 & 25,
#

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
# disable user input
stty -echo
clear
##################################
######   DEFAULT VAR START   #####
##################################

url1="http://example.com"
ncname="my_nextcloud"
dbhost="localhost"
dbtype="mysql"
rootuser='root'
html='/var/www/html' # full installation path
folder='nextcloud1'

# E-mail
email="mail@example.com"
smtpauth="LOGIN"
smtpport="587"
smtpname="admin@example.com"
smtpsec="tls"
smtppwd="password1234!"
smtpauthreq=1

# Others
displayname='true'
rlchannel='stable'
memcache='APCu'
maintenance='false'
singleuser='false'
skeleton='none'
default_language='de'
enable_avatars='true'
rewritebase='false'
depend="true"
overwrite="true"
isconfig="false"
config_to_read="default.json"

################################
######   DEFAULT VAR END   #####
################################

# Set colors for printf output
red='\e[31m'
green='\e[32m'
yellow='\e[33m'
reset='\e[0m'
redbg='\e[41m'
lightred='\e[91m'
blue='\e[34m'
cyan='\e[36m'
ugreen='\e[4;32m'

show_help() {
cat << EOF

 Usage: ${0##*/} [-v VERSION] [-n NAME]...
 You can specify some variables before script run.
 E.g. you can set the Nextcloud version or the
 MySQL root password. If no option is set, the
 script will use default variables and you
 can set them during script run (you will
 be asked) :-)

 -h --help	display this help and exit
 -v --version	specify Nextcloud Version (e.g. 10.0.0)
 -p --password	sets the MySQL root password. Type -p "P@s§"
 -r --root	sets the MySQL root user
 -m --mysqlhost	sets the MySQL Host
 -n --name	sets the Nextcloud name, used for Database
 -u --url	sets the URL for Nextcloud installation
 -d --directory	sets the full installation path
 -f --folder 	sets the desired folder (example.com/folder). May be empty
 -s --smtp	setup SMTP during script run (Type -s "y" or -s "n")
 -a --apps 	setup additionals apps during run (Type -a "y" or -a "n")
 -c --config	path to JSON config file

EOF
}

while :; do
    case $1 in
        -h|-\?|--help|\?)   # Call "show_help" function , then exit.
        	show_help
			stty echo
            exit
            ;;
        -v|--version)       # Takes an option argument, ensuring it has been specified.
            if [ -n "$2" ]; then
                version="$2"
                shift
            else
                printf $redbg'ERROR: "--version" requires a non-empty option argument.' >&2
				printf $reset"\n"
				stty echo
                exit 1
            fi
            ;;
        -p|--password)
			if [ -n "$2" ]; then
				database_root="$2"
				shift
			else
                printf $redbg'ERROR: "--password" requires a non-empty option argument.' >&2
				printf $reset"\n"
				stty echo
                exit 1
            fi
            ;;
		-r|--root)
			if [ -n "$2" ]; then
				dbruser="$2"
				shift
			else
                printf $redbg'ERROR: "--root" requires a non-empty option argument.' >&2
				printf $reset"\n"
				stty echo
                exit 1
            fi
            ;;
		-m|--mysqlhost)
			if [ -n "$2" ]; then
				dbhost="$2"
				shift
			else
                printf $redbg'ERROR: "--mysqlhost" requires a non-empty option argument.' >&2
				printf $reset"\n"
				stty echo
                exit 1
            fi
            ;;
		-n|--name)
			if [ -n "$2" ]; then
				ncname="$2"
				shift
			else
                printf $redbg'ERROR: "--name" requires a non-empty option argument.' >&2
				printf $reset"\n"
				stty echo
                exit 1
            fi
            ;;
		-c|--config)
			if [ -n "$2" ]; then
				if [ -f "$2" ]; then
					config_to_read="$2"
					isconfig="true"
			else
                printf $redbg'ERROR: "--config" requires a non-empty option argument.' >&2
				printf $reset"\n"
				stty echo
                exit 1
            fi
			fi
            ;;
		-u|--url)
			if [ -n "$2" ]; then
				url1="$2"
				shift
			else
                printf $redbg'ERROR: "--url" requires a non-empty option argument.' >&2
				printf $reset"\n"
				stty echo
                exit 1
            fi
            ;;
		-d|--directory)
			if [ -n "$2" ]; then
				html="$2"
				shift
			else
                printf $redbg'ERROR: "--directory" requires a non-empty option argument.' >&2
				printf $reset"\n"
				stty echo
                exit 1
            fi
            ;;
		-f|--folder)
				folder="$2"
				shift
            ;;
		-s|--smtp)
			if [ -n "$2" ]; then
				smtp="$2"
				shift
			else
                printf $redbg'ERROR: "--smtp" requires a non-empty option argument.' >&2
				printf $reset"\n"
				stty echo
                exit 1
            fi
            ;;
		-a|--apps)
			if [ -n "$2" ]; then
				appsinstall="$2"
				shift
			else
                printf $redbg'ERROR: "--apps" requires a non-empty option argument.' >&2
				printf $reset"\n"
				stty echo
                exit 1
            fi
            ;;
        --)              # End of all options.
            shift
            break
            ;;
        -?*)
            printf $redbg'Invalid option: %s' "$1" >&2
			printf $reset"\n"
			stty echo
			exit 0
            ;;
        *)               # Default case: If no more options then break out of the loop.
            break
    esac

    shift
done

# Set Header
header=' _____ _      _         _    _           _
|  __ (_)    | |       | |  | |         | |
| |__) |  ___| |_ ___  | |__| | ___  ___| |_
|  ___/ |/ _ \ __/ __| |  __  |/ _ \/ __| __|	+-+-+-+-+
| |   | |  __/ |_\__ \ | |  | | (_) \__ \ |_ 	| v 1.7 |
|_|   |_|\___|\__|___/ |_|  |_|\___/|___/\__|	+-+-+-+-+'

# Set color for Status
check_ok=$green"   OK  "$reset
check_miss=$redbg"MISSING"$reset

# Define latest Nextcloud version
ncrepo="https://download.nextcloud.com/server/releases"

# Must be root
[[ `id -u` -eq 0 ]] || { echo "Root privileges required, type: sudo -i"; stty echo; exit 1; }

# Read JSON config file
function jsonconfig {
echo "Reading JSON config $config_to_read ..."
chmod 0644 $config_to_read
sleep 0.5
# General - SQL
dbhost=$(json -f "$config_to_read" general.sql.dbhost)
dbruser=$(json -f "$config_to_read" general.sql.dbruser)
dbtype=$(json -f "$config_to_read" general.sql.dbtype)
database_root=$(json -f "$config_to_read" general.sql.database_root)

# General - HTML
url1=$(json -f "$config_to_read" general.html.url1)
ncname=$(json -f "$config_to_read" general.html.ncname)
html=$(json -f "$config_to_read" general.html.html)
folder=$(json -f "$config_to_read" general.html.folder)

# General - Perm
rootuser=$(json -f "$config_to_read" general.perm.rootuser)
htuser=$(json -f "$config_to_read" general.perm.htuser)
htgroup=$(json -f "$config_to_read" general.perm.htgroup)

# General - Other
depend=$(json -f "$config_to_read" general.other.depend)
rebootsrv=$(json -f "$config_to_read" general.other.rebootsrv)
overwrite=$(json -f "$config_to_read" general.other.overwrite)
adminuser=$(json -f "$config_to_read" general.other.adminuser)
smtp=$(json -f "$config_to_read" general.other.smtp)
appsinstall=$(json -f "$config_to_read" general.other.appsinstall)
version=$(json -f "$config_to_read" general.other.version)

# General - E-mail
email=$(json -f "$config_to_read" general.mail.email)
smtpauth=$(json -f "$config_to_read" general.mail.smtpauth)
smtpport=$(json -f "$config_to_read" general.mail.smtpport)
smtpname=$(json -f "$config_to_read" general.mail.smtpname)
smtpsec=$(json -f "$config_to_read" general.mail.smtpsec)
smtppwd=$(json -f "$config_to_read" general.mail.smtppwd)
smtpauthreq=$(json -f "$config_to_read" general.mail.smtpauthreq)
smtphost=$(json -f "$config_to_read" general.mail.smtphost)
smtpdomain=$(json -f "$config_to_read" general.mail.smtpdomain)

# Config - Custom
displayname=$(json -f "$config_to_read" config.custom.displayname)
rlchannel=$(json -f "$config_to_read" config.custom.rlchannel)
memcache=$(json -f "$config_to_read" config.custom.memcache)
maintenance=$(json -f "$config_to_read" config.custom.maintenance)
singleuser=$(json -f "$config_to_read" config.custom.singleuser)
skeleton=$(json -f "$config_to_read" config.custom.skeleton)
default_language=$(json -f "$config_to_read" config.custom.default_language)
enable_avatars=$(json -f "$config_to_read" config.custom.enable_avatars)
rewritebase=$(json -f "$config_to_read" config.custom.rewritebase)

# Config - Apps
contactsinstall=$(json -f "$config_to_read" apps.integrated.contactsinstall)
calendarinstall=$(json -f "$config_to_read" apps.integrated.calendarinstall)
mailinstall=$(json -f "$config_to_read" apps.integrated.mailinstall)
notesinstall=$(json -f "$config_to_read" apps.integrated.notesinstall)
tasksinstall=$(json -f "$config_to_read" apps.integrated.tasksinstall)
galleryinstall=$(json -f "$config_to_read" apps.integrated.galleryinstall)

impinstall=$(json -f "$config_to_read" apps.3rdparty.impinstall)
echo ""
}
printf $green"$header"$reset
echo ""
echo ""
# Read JSON config
if [[ "$isconfig" = "true" ]]; then
	begin=$(date +%s) 
	jsonconfig
else
	# Apps
	contactsinstall='true'
	calendarinstall='true'
	mailinstall='false'
	notesinstall='false'
	tasksinstall='false'
	galleryinstall='false'
	impinstall='false'
fi

###################################
######   BEFORE SETUP START   #####
###################################

function sleeping {
if [[ "$isconfig" = "true" ]]; then
	sleep 1
else
	sleep 0.2
fi
}
function sleeping2 {
if [[ "$isconfig" = "true" ]]; then
	sleep 2
else
	sleep 0.2
fi
}
function abort {
	echo ""
	stty echo
	exit 0
}
function plesk {
dbruser='admin'
database_root="`cat /etc/psa/.psa.shadow`"
htgroup='psacln'
perm='plesk'
}

printf "Checking minimal system requirements...\n"
echo ""
sleeping

# Ensure the OS is compatible with the installer
if [ -f /etc/centos-release ]; then
	os="CentOs"
	verfull=$(sed 's/^.*release //;s/ (Fin.*$//' /etc/centos-release)
	ver=${verfull:0:1}
elif [ -f /etc/lsb-release ]; then
	os=$(grep DISTRIB_ID /etc/lsb-release | sed 's/^.*=//')
	ver=$(grep DISTRIB_RELEASE /etc/lsb-release | sed 's/^.*=//')
elif [ -f /etc/fedora-release ]; then
	os=$(grep -w ID /etc/os-release | sed 's/^.*=//')
	ver=$(grep VERSION_ID /etc/os-release | cut -c 12-)
elif [ -f /etc/os-release ]; then
	os=$(grep -w ID /etc/os-release | sed 's/^.*=//')
	ver=$(grep VERSION_ID /etc/os-release | sed 's/^.*"\(.*\)"/\1/')
 else
	os=$(uname -s)
	ver=$(uname -r)
fi
	arch=$(uname -m)

printf $yellow"Detected : $os $ver $arch\n"$reset
echo ""
sleeping

if [[ "$os" = "CentOs" && ("$ver" = "6" || "$ver" = "7" ) ||
      "$os" = "Ubuntu" && ("$ver" = "12.04" || "$ver" = "14.04" || "$ver" = "16.04"  ) ||
      "$os" = "debian" && ("$ver" = "7" || "$ver" = "8" ) ||
	"$os" = "fedora" && ("$ver" = "23" || "$ver" = "24" || "$ver" = "25") ]]; then
	printf $green"Very Good! Your OS is compatible.\n"$reset
	echo ""
	sleeping
else
	printf $red"Unfortunately, this OS is not supported by Piet's Host Install-script for Nextcloud.\n"$reset
	sleeping2
	abort
fi
sleeping

if [[ "$os" = "Ubuntu" && ("$ver" = "12.04" || "$ver" = "14.04" || "$ver" = "16.04"  ) ]]; then
	if [[ "$overwrite" = "true" ]]; then
		#Check for Plesk installation
		echo "checking additional control panels..."
		if dpkg -l | grep -q psa; then
			plesk
		fi
		rootuser='root'
		dbruser='root'
		htgroup='www-data'
		htuser='www-data'
	else
		if [[ "$isconfig" = "true" ]]; then
			rootuser=$(json -f "$config_to_read" general.perm.rootuser)
			dbruser=$(json -f "$config_to_read" general.sql.dbruser)
			htuser=$(json -f "$config_to_read" general.perm.htuser)
			htgroup=$(json -f "$config_to_read" general.perm.htgroup)
		fi
	fi

elif [[ "$os" = "debian" && ("$ver" = "7" || "$ver" = "8" ) ]]; then
	if [[ "$overwrite" = "true" ]]; then
		#Check for Plesk installation
		echo "checking additional control panels..."
		if dpkg -l | grep -qw psa; then
			plesk
		fi
		rootuser='root'
		dbruser='root'
		htgroup='www-data'
		htuser='www-data'
	else
		if [[ "$isconfig" = "true" ]]; then
			rootuser=$(json -f "$config_to_read" general.perm.rootuser)
			dbruser=$(json -f "$config_to_read" general.sql.dbruser)
			htuser=$(json -f "$config_to_read" general.perm.htuser)
			htgroup=$(json -f "$config_to_read" general.perm.htgroup)
		fi
	fi

elif [[ "$os" = "CentOs" && ("$ver" = "6" || "$ver" = "7" ) ]]; then
	if [[ "$overwrite" = "true" ]]; then
		#Check for Plesk installation
		echo "checking additional control panels..."
		if rpm -qa | grep -q psa; then
			plesk
		fi
		rootuser='root'
		dbruser='root'
		htgroup='apache'
		htuser='apache'
	else
		if [[ "$isconfig" = "true" ]]; then
			rootuser=$(json -f "$config_to_read" general.perm.rootuser)
			dbruser=$(json -f "$config_to_read" general.sql.dbruser)
			htuser=$(json -f "$config_to_read" general.perm.htuser)
			htgroup=$(json -f "$config_to_read" general.perm.htgroup)
		fi
	fi

elif [[ "$os" = "fedora" && ("$ver" = "23" || "$ver" = "25") ]]; then
	if [[ "$overwrite" = "true" ]]; then
		#Check for Plesk installation
		echo "checking additional control panels..."
		if rpm -qa | grep -qw psa; then
			plesk
		fi
		rootuser='root'
		dbruser='root'
		htgroup='apache'
		htuser='apache'
	else
		if [[ "$isconfig" = "true" ]]; then
			rootuser=$(json -f "$config_to_read" general.perm.rootuser)
			dbruser=$(json -f "$config_to_read" general.sql.dbruser)
			htuser=$(json -f "$config_to_read" general.perm.htuser)
			htgroup=$(json -f "$config_to_read" general.perm.htgroup)
		fi
	fi
fi

if [[ "$depend" = "false" ]]; then
		printf $yellow"Skipping dependencies check...\n"$reset
		sleeping
else
	echo ""
	printf $yellow"Installing dependencies...(may take some time)\n"$reset
{
if [[ "$os" = "Ubuntu" && ("$ver" = "12.04" || "$ver" = "14.04" || "$ver" = "16.04"  ) ]]; then
	dpkg -l | grep -qw pv || apt-get install pv -y
	dpkg -l | grep -qw bzip2 || apt-get install bzip2 -y
	dpkg -l | grep -qw rsync || apt-get install rsync -y
	dpkg -l | gr