#!/bin/bash
source /opt/webinoly/lib/general
opt=$1

# Http-Authentication Plugin
# Syntax: httpauth <option>
# Options: -add, -delete, -list, -wp-admin-on, -wp-admin-off

if [[ ! $(conf_read nginx) == "true" ]]; then
	echo ""
	echo "${red} NGINX is required to get HTTP Authentication working properly! ${end}"
	echo ""
	exit 1
fi

# Extract value if exist
if [[ $opt == "-add="* || $opt == "-delete="* ]]; then
	value=$(echo "${opt}" | cut -d'=' -f 2 -s)
	opt=$(echo "${opt}" | cut -d'=' -f 1 -s)
fi


if [[ $opt == "-add" ]]; then
	if [[ -z $value ]]; then
		echo ""
		read -p "${blu}HTTP-Auth User: ${end}" user
		read -p "${blu}HTTP-Auth Password: ${end}" pass
		echo ""
	else
		userdata=${value:1:-1}
		user=$(echo "${userdata}" | cut -d',' -f 1 -s)
		pass=$(echo "${userdata}" | cut -d',' -f 2 -s)
	fi
	
	if ! [[ -n $user && -n $pass && $user =~ ^[^:]+$ && $pass =~ ^[^:]+$ ]]; then
		echo "${red}Please, enter a valid username and password!${end}"
		exit 1
	fi
	
	[[ -a /etc/nginx/.htpasswd ]] && exist=$( grep -E "^${user}:" /etc/nginx/.htpasswd )
	if [[ -z $exist ]]; then
		sudo sh -c "echo -n '$user:$(openssl passwd -1 $pass)\n' >> /etc/nginx/.htpasswd"
		echo "${gre}User '$user' has been added successfully!${end}"
	else
		echo "${red}User '$user' already exist!${end}"
	fi
	echo ""
elif [[ $opt == "-delete" ]]; then
	[[ -z $value ]] && read -p "${blu}HTTP-Auth User: ${end}" userpurge || userpurge=$value
	[[ -a /etc/nginx/.htpasswd ]] && exist=$( grep -E "^${userpurge}:" /etc/nginx/.htpasswd )
	if [[ -z $exist ]]; then
		echo "${red}User '$userpurge' does not exist!${end}"
		exit 1
	fi
	sudo sed -i "/^$userpurge:/d" /etc/nginx/.htpasswd
	echo "${gre}User '$userpurge has been deleted successfully!${end}"
elif [[ $opt == "-list" ]]; then
	[[ ! -a /etc/nginx/.htpasswd ]] && exit 0
	echo "${gre}"
	cat /etc/nginx/.htpasswd | while read line
		do
			# Show only the user_name part, cut encrypted password string
			echo "-  $line" | cut -f 1 -d ':'
		done
	echo "${end}"
elif [[ $opt == "-wp-admin-on" ]]; then
	iswpadon=$( grep -F "acl.conf;" /etc/nginx/common/wpcommon.conf )
	if [[ -z $iswpadon ]]; then
		sudo sed -i "/zone=one/a \  include common/acl.conf;" /etc/nginx/common/wpcommon.conf
		sudo service nginx reload
		conf_write wp-admin-auth true
		echo "${gre}  WordPress admin authentication has been enabled! ${end}"
	else
		echo "${gre} HTTP Authentication for WP Admin pages is already enabled! ${end}"
	fi
	
elif [[ $opt == "-wp-admin-off" ]]; then
	sudo sed -i "/acl.conf/d" /etc/nginx/common/wpcommon.conf
	sudo service nginx reload
	conf_write wp-admin-auth purged
	echo "${gre}  WordPress admin authentication has been disabled! ${end}"
else
	echo "${red}Please enter a valid option!${end}"
fi