webinoly/usr/stack

#!/bin/bash

# Server Stack Manager
# Syntax: stack <option> <arguments>
# Options: -html, -nginx, -php, -lemp, -mysql, -info, -purge-server-all, -php-ver, -mysql-ver, -letsencrypt, -backups, -postfix, -redis, -memcached, -pma
# Arguments: -purge, -build

source /opt/webinoly/lib/install
check_for_parameters $@
api-events_update sts

# Build parameter validation!
[[ $build =~ ^(light|basic)$ ]] || unset build

# FORCE - Unattended Purge
clear_force_flag() {
	[[ $(conf_read force-flag) == "true" ]] && conf_delete force-flag
}
if [[ ${purge,,} == "force" || ${purge_server_all,,} == "force" || ${php,,} == "force" ]]; then
	conf_write force-flag true
	force="1"
fi

purge_mysql_client() {
	local mysqlver=$(conf_read mysql-ver)
	sudo apt -y purge mariadb-client
	echo | sudo add-apt-repository --remove "http://mirrors.syringanetworks.net/mariadb/repo/${mysqlver}/ubuntu"
	sudo apt-key del 0xF1656F24C74CD1D8
	conf_write mysql-client purged
}

#############################################
########   Delete/Purge some stack   ########
#############################################

if [[ -n $purge && ( -n $html || -n $nginx ) ]]; then
	api-events_update pn1
	if [[ $(conf_read nginx) != "true" ]]; then
		echo "${dim}Nginx is not installed, hence can not be deleted! ${end}"
		clear_force_flag
	else		
		if [[ $(conf_read force-flag) != "true" ]]; then
			echo ""
			echo "${red}¡ C A U T I O N !  You are about to remove NGINX from your server!"
			[[ $(conf_read mysql-tool-pma) == "true" ]] && echo "phpMyAdmin will be removed too because depends on Nginx."
			echo ""
			
			echo " ${blu}Are you sure [y/N]? ${end}"
			while read -r -n 1 -s answer; do
			  answer=${answer:-n}
			  [[ $answer = [YyNn] ]] && break
			done
		fi
		
		if [[ $answer == [Yy] || $(conf_read force-flag) == "true" ]]; then
			if [[ $(conf_read force-flag) == "true" && $force == 1 ]]; then
				answer="Y"
			else
				echo ""
				echo "${blu}Do you want to delete your sites data directory (/var/www) [Y/n]? ${end}"
				while read -r -n 1 -s answer; do
				  answer=${answer:-y}
				  [[ $answer = [YyNn] ]] && break
				done
			fi
			if [[ $answer == [Yy] ]]; then
				api-events_update pn2
				site -delete-all=force
			fi
			
			# Remove tools-site
			[[ $(conf_read mysql-tool-pma) == "true" ]] && stack -pma -purge=force
			sudo rm -rf /var/www/html
			sudo rm -rf /var/www/$(conf_read tools-port)
			conf_delete tools-site -commented
			
			[[ $(conf_read login-www-data) == "true" ]] && webinoly -login-www-data=off
			[[ $(conf_read nginx-tool-ssl) == "true" ]] && stack -letsencrypt -purge=force
			[[ $(conf_read nginx-tool-bkp) == "true" ]] && stack -backups -purge=force
			purge_autoremove="true"
			
			sudo systemctl stop nginx
			sudo apt -y purge nginx nginx-common # Common package is no longer installed, but we purge it in case of old stacks built before 1.14.0.
			
			# APT-KEY deprecated in 22.04
			if [[ $(lsb_release -c | cut -d':' -f 2 | xargs) =~ ^(bionic|focal)$ ]]; then
				if [[ $(conf_read nginx-ppa) == "mainline" ]]; then
					echo | sudo add-apt-repository --remove "deb https://nginx.org/packages/mainline/ubuntu/ $(check_osname) nginx"
				else
					echo | sudo add-apt-repository --remove "deb https://nginx.org/packages/ubuntu/ $(check_osname) nginx"
				fi
				sudo apt-key del 7BD9BF62
			else
				sudo rm -rf /usr/share/keyrings/nginx-archive-keyring.gpg
				sudo rm -rf /etc/apt/sources.list.d/nginx.list
			fi
			
			# Remove SSL Cron
			if [[ -f /var/spool/cron/crontabs/root ]]; then
				sudo sed -i '/MAILTO=/d' /var/spool/cron/crontabs/root
				sudo sed -i '/certbot renew/d' /var/spool/cron/crontabs/root
			fi
			
			[ -L $CURRENT_HOME/www ] && sudo rm $CURRENT_HOME/www
			[ -L $CURRENT_HOME/sites-available ] && sudo rm $CURRENT_HOME/sites-available
			
			# Remove sources
			sudo rm -rf /opt/webinoly/templates/source/default
			sudo rm -rf /opt/webinoly/templates/source/nginx.conf
			
			api-events_update pn6
			linux_purge
			
			conf_write nginx purged
			conf_write nginx-optim purged
			conf_delete server-version
			echo ""
			echo "${gre}Nginx has been deleted successfully! ${end}"
			echo ""
		else
			echo ""
			echo " ${gre}Action aborted!!!  ${end}"
			echo ""
		fi
		echo ""
	fi
	
elif [[ -n $purge && -n $php ]]; then
	api-events_update pp1
	if [[ $(conf_read php) != "true" ]]; then
		echo "${dim}PHP is not installed, hence can not be deleted! ${end}"
		clear_force_flag
	else
		if [[ $(conf_read force-flag) != "true" ]]; then
			echo ""
			echo "${red}¡ C A U T I O N !  You are about to remove PHP from your server!"
			echo "This action will also remove phpMyAdmin if its installed because depends on PHP. ${end}"
			echo ""

			echo " ${blu}Are you sure [y/N]? ${end}"
			while read -r -n 1 -s answer; do
				answer=${answer:-n}
				[[ $answer = [YyNn] ]] && break
			done
		fi

		if [[ $answer == [Yy] || $(conf_read force-flag) == "true" ]]; then
			[[ $(conf_read mysql-tool-pma) == "true" ]] && stack -pma -purge=force
			[[ $(conf_read smtp) == "true" ]] && webinoly -smtp -purge
			
			[[ $(conf_read php-tool-postfix) == "true" ]] && stack -postfix -purge=force
			[[ $(conf_read php-tool-redis) == "true" ]] && stack -redis -purge=force
			[[ $(conf_read php-tool-memcached) == "true" ]] && stack -memcached -purge=force
			
			purge_autoremove="true"
			ver=$(conf_read php-ver)
			sudo systemctl stop php${ver}-fpm
			
			sudo apt -y purge php${ver}-common php${ver}-cli php${ver}-fpm php${ver}-curl php${ver}-gd php${ver}-imap php${ver}-readline php${ver}-mysql php${ver}-mbstring php${ver}-bcmath php${ver}-mysql php${ver}-opcache php${ver}-zip php${ver}-xml php${ver}-soap php${ver}-imagick php${ver}-msgpack php${ver}-igbinary php${ver}-intl php-pear graphviz ghostscript
			
			# For old packages - before ondrej split modules
			sudo apt -y purge php-imagick php-msgpack

			# APT-KEY deprecated in 22.04
			if [[ $(lsb_release -c | cut -d':' -f 2 | xargs) =~ ^(bionic|focal)$ ]]; then
				echo | sudo add-apt-repository --remove 'ppa:ondrej/php'
				sudo apt-key del E5267A6C #ondrej
			else
				sudo rm -rf /etc/apt/trusted.gpg.d/ondrej-ubuntu-php.gpg*
				sudo rm -rf /etc/apt/sources.list.d/ondrej-ubuntu-php-$(check_osname).list*
			fi

			# Remove sources
			sudo rm -rf /etc/php
			sudo rm -rf /opt/webinoly/templates/source/php.ini
			sudo rm -rf /opt/webinoly/templates/source/www.conf
			sudo rm -rf /opt/webinoly/templates/source/php-fpm.conf
			sudo rm -rf /opt/webinoly/templates/source/main.cf
			
			# Remove tools-site
			if [[ -d /var/www/$(conf_read tools-port)/htdocs ]]; then
				sudo rm -rf /var/www/$(conf_read tools-port)/htdocs/status
				sudo rm -rf /var/www/$(conf_read tools-port)/htdocs/ping
				sudo rm -rf /var/www/$(conf_read tools-port)/htdocs/php
			fi
			
			conf_write php purged
			conf_write php-optim purged
			
			echo ""
			echo "${gre}PHP has been deleted successfully! ${end}"
			echo ""
		else
			echo ""
			echo " ${gre}Action aborted!!!  ${end}"
			echo ""
		fi
		echo ""
		api-events_update pp8
	fi
	
	
elif [[ -n $purge && -n $mysql ]]; then
	api-events_update pm1
	if [[ $(conf_read mysql) != "true" && $(conf_read mysql-client) == "true" ]]; then
		purge_mysql_client
		echo "${dim}MySQL is not installed, hence can not be deleted! ${end}"
		echo "${gre}MySQL-Client has been deleted successfully! ${end}"
	elif [[ $(conf_read mysql) != "true" ]]; then
		echo "${dim}MySQL is not installed, hence can not be deleted! ${end}"
	else

		if [[ $(conf_read force-flag) != "true" ]]; then
			echo ""
			echo "${red}¡ C A U T I O N !  You are about to remove MySQL from your server! ${end}"
			[[ $mysql == "keep-data" ]] && echo "${blu}${bol}The keep-data option is enabled, it is recommended to make a backup of all the databases before removing and reinstalling MySQL (MariaDB).${end}"
			echo ""

			echo " ${blu}Are you sure [y/N]? ${end}"
			while read -r -n 1 -s answer; do
			  answer=${answer:-n}
			  [[ $answer = [YyNn] ]] && break
			done
		fi
		
		if [[ $answer == [Yy] || $(conf_read force-flag) == "true" ]]; then
			[[ $(conf_read mysql-tool-pma) == "true" ]] && stack -pma -purge=force
			mysqlver=$(conf_read mysql-ver)
			sudo systemctl stop mysql
			
			if [[ $mysql == "keep-data" ]]; then
				echo "mariadb-server-${mysqlver}	mariadb-server-${mysqlver}/postrm_remove_databases	boolean false" | debconf-set-selections
			else
				echo "mariadb-server-${mysqlver}	mariadb-server-${mysqlver}/postrm_remove_databases	boolean true" | debconf-set-selections
			fi
			
			# Purge is better, instead of remove even when keep-data is enabled, it prevents warnings during reinstallation.
			sudo apt -y purge mariadb-server mariadb-common mysql-common
			purge_mysql_client
			echo | sudo add-apt-repository --remove "http://mirrors.syringanetworks.net/mariadb/repo/${mysqlver}/ubuntu"
			purge_autoremove="true"
			
			if [[ $mysql != "keep-data" ]]; then
				sudo rm -rf /etc/mysql
				sudo rm -rf /var/lib/mysql
				sudo rm -rf /usr/share/mysql
				conf_delete mysql-root
				conf_delete mysql-admin
			else
				echo "${blu}MySQL data was not removed.${end}"
			fi
			
			conf_write mysql purged
			echo ""
			echo "${gre}MySQL has been deleted successfully! ${end}"
			echo ""
		else
			echo ""
			echo " ${gre}Action aborted!!!  ${end}"
			echo ""
		fi
		echo ""
		api-events_update pm4
	fi
	
	
elif [[ -n $purge && -n $letsencrypt ]]; then
	api-events_update pn3
	if [[ $(conf_read nginx-tool-ssl) != "true" ]]; then
		echo "${dim}Let's Encrypt is not installed, hence can not be deleted! ${end}"
		clear_force_flag
	else
		if [[ $(conf_read force-flag) != "true" ]]; then
			echo ""
			echo "${red}¡ C A U T I O N !  You are about to remove Let's Encrypt from your server! ${end}"
			echo ""

			echo " ${blu}Are you sure [y/N]? ${end} "
			while read -r -n 1 -s answer; do
			  answer=${answer:-n}
			  [[ $answer = [YyNn] ]] && break
			done
		fi

		if [[ $answer == [Yy] || $(conf_read force-flag) == "true" ]]; then
			sudo snap remove certbot
			[[ -L /usr/bin/certbot ]] && sudo rm -rf /usr/bin/certbot
			conf_write nginx-tool-ssl purged
			echo ""
			echo "${gre}Let's Encrypt has been deleted successfully! ${end}"
			echo ""
		else
			echo ""
			echo " ${gre}Action aborted!!!  ${end}"
			echo ""
		fi
		echo ""
		api-events_update pn4
	fi


elif [[ -n $purge && -n $backups ]]; then
	api-events_update pn5
	if [[ $(conf_read nginx-tool-bkp) != "true" ]]; then
		echo "${dim}BackUp packages are not installed, hence can not be deleted! ${end}"
		clear_force_flag
	else
		if [[ $(conf_read force-flag) != "true" ]]; then
			echo ""
			echo "${red}¡ C A U T I O N !  You are about to remove BackUp packages from your server! ${end}"
			echo ""

			echo " ${blu}Are you sure [y/N]? ${end} "
			while read -r -n 1 -s answer; do
			  answer=${answer:-n}
			  [[ $answer = [YyNn] ]] && break
			done
		fi

		if [[ $answer == [Yy] || $(conf_read force-flag) == "true" ]]; then	
			# Remove duply profiles
			if [[ -d $HOME/.duply ]]; then
				sudo rm -rf $HOME/.duply
				echo "${gre}${dim}Backup (duply) profiles deleted!${end}"
			fi
			
			[[ -z $(conf_read bkp-source-tmp) ]] && sudo snap remove duplicity || sudo pip3 uninstall -y duplicity 2>&1 | grep -v "pip as the 'root' user"
			sudo apt -y purge python3-boto3
			sudo rm -rf /usr/bin/duply
			
			purge_autoremove="true"
			conf_write nginx-tool-bkp purged
			
			echo ""
			echo "${gre}BackUp packages have been deleted successfully! ${end}"
			echo ""
		else
			echo ""
			echo " ${gre}Action aborted!!!  ${end}"
			echo ""
		fi
		echo ""
		api-events_update pn6
	fi


elif [[ -n $purge && -n $postfix ]]; then
	api-events_update pp2
	if [[ $(conf_read php-tool-postfix) != "true" ]]; then
		echo "${dim}Postfix is not installed, hence can not be deleted! ${end}"
		clear_force_flag
	else
		if [[ $(conf_read force-flag) != "true" ]]; then
			echo ""
			echo "${red}¡ C A U T I O N !  You are about to remove Postfix from your server! ${end}"
			echo ""

			echo " ${blu}Are you sure [y/N]? ${end} "
			while read -r -n 1 -s answer; do
			  answer=${answer:-n}
			  [[ $answer = [YyNn] ]] && break
			done
		fi

		if [[ $answer == [Yy] || $(conf_read force-flag) == "true" ]]; then
			sudo apt -y purge postfix
			purge_autoremove="true"
			conf_write php-tool-postfix purged
			echo ""
			echo "${gre}Postfix has been deleted successfully! ${end}"
			echo ""
		else
			echo ""
			echo " ${gre}Action aborted!!!  ${end}"
			echo ""
		fi
		echo ""
		api-events_update pp3
	fi


elif [[ -n $purge && -n $redis ]]; then
	api-events_update pp4
	if [[ $(conf_read php-tool-redis) != "true" ]]; then
		echo "${dim}Redis is not installed, hence can not be deleted! ${end}"
		clear_force_flag
	else
		if [[ $(conf_read force-flag) != "true" ]]; then
			echo ""
			echo "${red}¡ C A U T I O N !  You are about to remove Redis from your server! ${end}"
			echo ""

			echo " ${blu}Are you sure [y/N]? ${end} "
			while read -r -n 1 -s answer; do
			  answer=${answer:-n}
			  [[ $answer = [YyNn] ]] && break
			done
		fi

		if [[ $answer == [Yy] || $(conf_read force-flag) == "true" ]]; then
			ver=$(conf_read php-ver)
			sudo apt -y purge redis-server php${ver}-redis
			purge_autoremove="true"
			
			# For old packages - before ondrej split modules
			sudo apt -y purge php-redis
			
			# APT-KEY deprecated in 22.04
			if [[ $(lsb_release -c | cut -d':' -f 2 | xargs) =~ ^(bionic|focal)$ ]]; then
				echo | sudo add-apt-repository --remove 'ppa:redislabs/redis'
				sudo apt-key del 3FA6E3CA
			else
				sudo rm -rf /usr/share/keyrings/redis-archive-keyring.gpg
				sudo rm -rf /etc/apt/sources.list.d/redis.list
			fi
			
			sudo systemctl restart php${ver}-fpm
			conf_write php-tool-redis purged
			
			echo ""
			echo "${gre}Redis has been deleted successfully! ${end}"
			echo ""
		else
			echo ""
			echo " ${gre}Action aborted!!!  ${end}"
			echo ""
		fi
		echo ""
		api-events_update pp5
	fi


elif [[ -n $purge && -n $memcached ]]; then
	api-events_update pp6
	if [[ $(conf_read php-tool-memcached) != "true" ]]; then
		echo "${dim}Memcached is not installed, hence can not be deleted! ${end}"
		clear_force_flag
	else
		if [[ $(conf_read force-flag) != "true" ]]; then
			echo ""
			echo "${red}¡ C A U T I O N !  You are about to remove Memcached from your server! ${end}"
			echo ""

			echo " ${blu}Are you sure [y/N]? ${end} "
			while read -r -n 1 -s answer; do
			  answer=${answer:-n}
			  [[ $answer = [YyNn] ]] && break
			done
		fi

		if [[ $answer == [Yy] || $(conf_read force-flag) == "true" ]]; then
			ver=$(conf_read php-ver)
			sudo apt -y purge php${ver}-memcached php${ver}-memcache memcached
			purge_autoremove="true"
			
			# For old packages - before ondrej split modules
			sudo apt -y purge php-memcached php-memcache
			
			sudo systemctl restart php${ver}-fpm
			conf_write php-tool-memcached purged
			
			echo ""
			echo "${gre}Memcached has been deleted successfully! ${end}"
			echo ""
		else
			echo ""
			echo " ${gre}Action aborted!!!  ${end}"
			echo ""
		fi
		echo ""
		api-events_update pp7
	fi


elif [[ -n $purge && -n $pma ]]; then
	api-events_update pm2
	if [[ $(conf_read mysql-tool-pma) != "true" ]]; then
		echo "${dim}phpMyAdmin is not installed, hence can not be deleted! ${end}"
		clear_force_flag
	else
		if [[ $(conf_read force-flag) != "true" ]]; then
			echo ""
			echo "${red}¡ C A U T I O N !  You are about to remove phpMyAdmin from your server! ${end}"
			echo ""

			echo " ${blu}Are you sure [y/N]? ${end} "
			while read -r -n 1 -s answer; do
			  answer=${answer:-n}
			  [[ $answer = [YyNn] ]] && break
			done
		fi

		if [[ $answer == [Yy] || $(conf_read force-flag) == "true" ]]; then
			sudo rm -rf /var/www/$(conf_read tools-port)/htdocs/pma
			conf_write mysql-tool-pma purged
			echo ""
			echo "${gre}phpMyAdmin has been deleted successfully! ${end}"
			echo ""
		else
			echo ""
			echo " ${gre}Action aborted!!!  ${end}"
			echo ""
		fi
		echo ""
		api-events_update pm3
	fi


######################################
########   Purge-Server-All   ########
######################################

elif [[ -n $purge && -n $lemp ]]; then
	echo "${red}If you want to remove Webinoly Stack completely from your server use the '-purge-server-all' option or remove each package individually.  ${end}"
	exit 1

elif [[ -n $purge_server_all ]]; then
	api-events_update st2
	echo ""
	echo "${red}¡ C A U T I O N !  You are about to remove Webinoly Stack completely from your server!"
	echo "This action will remove Nginx, PHP, MySQL and all the additional tools."
	echo "${end}"
	if [[ $(conf_read force-flag) != "true" && $force != 1 ]]; then
		echo " ${blu}Are you sure [y/N]? ${end}"
		while read -r -n 1 -s answer; do
		  answer=${answer:-n}
		  [[ $answer = [YyNn] ]] && break
		done
	else
		answer="Y"
	fi

	if [[ $answer == [Yy] ]]; then
		if [[ $(conf_read mysql) == true ]]; then
			# Usually comes by default with Ubuntu. Not removed: dirmngr
			sudo apt -y purge apt-transport-https
		fi
		
		stack -nginx -purge=force
		stack -mysql -purge=force
		stack -php -purge=force
		
		# Backups can be installed alone (without nginx)
		[[ $(conf_read nginx-tool-bkp) == "true" ]] && stack -backups -purge=force
		
		# Remove remanent packages and things!
		[[ -d /etc/datadog-agent ]] && webinoly -datadog -purge
		[[ -f /etc/ssl/certs/webinoly-blackhole.crt.pem ]] && sudo rm -rf /etc/ssl/certs/webinoly-blackhole.crt.pem
		[[ -f /etc/ssl/private/webinoly-blackhole.key.pem ]] && sudo rm -rf /etc/ssl/private/webinoly-blackhole.key.pem
		[[ -f /etc/ssl/dhparam.pem ]] && sudo rm -rf /etc/ssl/dhparam.pem
		[[ -f $HOME/.aws/credentials ]] && sudo rm -rf $HOME/.aws/credentials
		[[ -f /etc/needrestart/conf.d/webinoly.conf ]] && sudo rm -rf /etc/needrestart/conf.d/webinoly.conf
		
		if [[ $(conf_read pre-packs) == true ]]; then
			# Usually comes by default with Ubuntu. Not removed: software-properties-common, zip
			sudo apt -y purge pwgen unzip
			conf_write pre-packs purged
		fi	
		
		purge_autoremove="true"
		[[ $(conf_read swap-owner) == "webinoly" ]] && swap_delete
		
		echo "${gre}"
		echo "****************************************************************************"
		echo "***     ${bol}Webinoly Stack have been completely removed from your server${end}${gre}     ***"
		echo "****         ${dim}We are sad because you decided to remove Webinoly!!${end}${gre}        ****"
		echo "****************************************************************************"
		echo "${end}"
	else
		echo ""
		echo " ${gre} Action aborted!!!  ${end}"
		echo ""
	fi


##################################################
######   Install packages: Stack Builder!   ######
##################################################

elif [[ -n $html || -n $nginx ]]; then
	[[ $nginx == "mainline" ]] && conf_write nginx-ppa mainline
	stack_builder nginx false false $build
	
elif [[ -n $php ]]; then
	if [[ $(conf_read nginx) != "true" && $(conf_read force-flag) != "true" && $php != "nginx" ]]; then
		echo ""
		echo "${blu}Nginx is not installed, do you want to install it too [y/N]?${end} "
		while read -r -n 1 -s answer; do
		  answer=${answer:-n}
		  [[ $answer = [YyNn] ]] && break
		done
	fi
	[[ $answer = [Yy] || $php == "nginx" ]] && stack_builder nginx php false $build || stack_builder false php false $build
	
elif [[ -n $mysql ]]; then
	[[ $(conf_read php) != "true" || $(conf_read nginx) != "true" ]] && build=light
	[[ $mysql == "client" ]] && stack_builder false false mysql-client || stack_builder false false mysql $build

elif [[ -n $lemp ]]; then
	api-events_update st1
	stack_builder nginx php mysql $build

elif [[ -n $letsencrypt ]]; then
	[[ $(conf_read nginx-tool-ssl) != "true" ]] && stack_builder false false false letsencrypt || echo "${dim}Let's Encrypt is already installed!${end}"

elif [[ -n $backups ]]; then
	[[ $(conf_read nginx-tool-bkp) != "true" ]] && stack_builder false false false backups || echo "${dim}BackUp packages are already installed!${end}"

elif [[ -n $postfix ]]; then
	[[ $(conf_read php-tool-postfix) != "true" ]] && stack_builder false false false postfix || echo "${dim}Postfix is already installed!${end}"

elif [[ -n $redis ]]; then
	[[ $(conf_read php-tool-redis) != "true" ]] && stack_builder false false false redis || echo "${dim}Redis is already installed!${end}"

elif [[ -n $memcached ]]; then
	[[ $(conf_read php-tool-memcached) != "true" ]] && stack_builder false false false memcached || echo "${dim}Memcached is already installed!${end}"

elif [[ -n $pma ]]; then
	[[ $(conf_read mysql-tool-pma) != "true" ]] && stack_builder false false false pma || echo "${dim}phpMyAdmin is already installed!${end}"



##########################################
######   Change PHP/MySQL Version   ######
##########################################
	
elif [[ -n $php_ver ]]; then
	api-events_update st3
	if [[ $php_ver != true && $(check_php_version $php_ver) == "true" ]]; then
		echo "${blu}New PHP version: '$php_ver' ${end}"
		if [[ $(conf_read php) == "true" && $(conf_read php-ver) == $php_ver ]]; then
			echo "${gre}PHP $php_ver is currently installed!${end}"
		elif [[ $(conf_read php) == "true" ]]; then
			[[ $(conf_read mysql-tool-pma) == "true" ]] && pmaflag="true"
			smtp_backup
			
			# We need to know what packages are installed before remove them
			[[ $(conf_read php-tool-postfix) == "true" ]] && php_profile_pf="true"
			[[ $(conf_read php-tool-redis) == "true" ]] && php_profile_rd="true"
			[[ $(conf_read php-tool-memcached) == "true" ]] && php_profile_mc="true"
			
			sudo stack -php -purge=force
			conf_write php-ver $php_ver
			conf_write force-flag true  # force flag prevent to be questioned (Unattended) when nginx is not installed.
			
			if [[ $php_profile_pf == "true" && $php_profile_rd == "true" && $php_profile_mc == "true" ]]; then
				sudo stack -php
			else
				sudo stack -php -build=light
				[[ $php_profile_pf == "true" ]] && sudo stack -postfix
				[[ $php_profile_rd == "true" ]] && sudo stack -redis
				[[ $php_profile_mc == "true" ]] && sudo stack -memcached
			fi
			
			smtp_backup_recovery
			[[ $pmaflag == "true" ]] && sudo stack -pma
		elif [[ $(conf_read php) != "true" ]]; then
			conf_write php-ver $php_ver
			echo "${gre}PHP is not already installed but this version will be installed next time! ${end}"
		fi
		clear_force_flag
	else
		echo "${red}[ERROR] Please, enter a valid PHP version!${end}"
		exit 1
	fi


elif [[ -n $mysql_ver ]]; then
	api-events_update st4
	
	if [[ $mysql_ver != true && $(check_mysql_version $mysql_ver) == "true" ]]; then
		echo "${blu}New MySQL (MariaDB) version: '$mysql_ver' ${end}"
		if [[ $(conf_read mysql) == "true" && $(conf_read mysql-ver) == $mysql_ver ]]; then
			echo "${gre}MySQL (MariaDB) $mysql_ver is currently installed!${end}"
		elif [[ $(conf_read mysql) == "true" ]]; then
			# Downgrades are not allowed - https://mariadb.com/kb/en/downgrading-between-major-versions-of-mariadb/
			current_mysql_ver="$(conf_read mysql-ver)"
			if [[ -n $current_mysql_ver && ${current_mysql_ver//.} -gt ${mysql_ver//.} ]]; then
				echo "${red}[ERROR] Downgrading MariaDB is not supported!${end}"
				exit 1
			fi
			
			[[ $(conf_read mysql-tool-pma) == "true" ]] && pmaflag="true"
			sudo stack -mysql=keep-data -purge=force
			conf_write mysql-ver $mysql_ver
			[[ $pmaflag == "true" ]] && sudo stack -mysql -block-password-display || sudo stack -mysql -build=light -block-password-display
		elif [[ $(conf_read mysql) != "true" ]]; then
			conf_write mysql-ver $mysql_ver
			echo "${gre}MySQL (MariaDB) is not already installed but this version will be installed next time! ${end}"
		fi
	else
		echo "${red}[ERROR] Please, enter a valid MySQL (MariaDB) version!${end}"
		exit 1
	fi



elif [[ -n $help || -n $h || -n $H || $empty_param == "true" ]]; then
	help_message
else
	echo "${red}[ERROR] Please, enter a valid option! ${end}"
	exit 1
fi

# Clear FORCE flag in config file
if [[ $force == 1 ]]; then
	clear_force_flag
	force="0"
fi

# Remove all unnecessary packages!
[[ $purge_autoremove == "true" ]] && sudo apt -yqq autoremove &> /dev/null

api-events_update ste