Script to create and add users to a .htauth file using SSHA encruption

htauth-gen

#!/bin/bash
# DEPENDENCIES: openssl
AUTHFILE_NAME='.htpasswd'
AUTHFILE_DIR='/etc/nginx'

[[ $(id -u) -gt 0 ]] && this script must be run as root && exit 1
echo -n "Enter users to add to .htpasswd file (separated by space, return to exit): "
read USERS
[[ ${#USERS} -lt 1 ]] && exit 0
# Following two lines declare currently unused associative arrays
declare -A PASSWD
declare -A COMMENT
# End unused lines
for user in ${USERS[*]}; do
21VALID=false
	while [[ ${VALID} == false ]]; do
		echo -n "Enter password for ${user}: "
		read -s USRPASS
		echo
		echo -n "Confirm password for ${user}: "
		read -s CONFIRM
		echo
		VALID=true
		[[ ${#USRPASS} -lt 1 && ${#CONFIRM} -lt 1 ]] && echo "No password entered. Please choose a password." && VALID=false
		[[ ${USRPASS} != ${CONFIRM} ]] && echo "Passwords did not match." && VALID=false
	done
	echo -n "Enter comments for ${user}: "
	read USRCOMMENT
	SALT=$(openssl rand -base64 3)
	SHA1=$(printf "${USRPASS}${SALT}" | openssl dgst -binary -sha1 | sed 's#$#'"${SALT}"'#' | base64)
	echo "${user}:{SSHA}${SHA1}:${USRCOMMENT}" >> ${AUTHFILE_DIR}/${AUTHFILE_NAME}
	echo "Added user ${user} to ${AUTHFILE_NAME}"
done
chown root:nobody ${AUTHFILE_DIR}/${AUTHFILE_NAME}
chmod 644 ${AUTHFILE_DIR}/${AUTHFILE_NAME}