#!/bin/bash

# This tool generates the users and/or appends the given SSH kjey to the authorized file

# $1 = username
# $2 = tempfile
LOGFILE="/etc/ttyserver/mkuser.log"

if [ "$EUID" -ne 0 ];then
	#echo "Please run as root"
	echo "Not run as root" >> $LOGFILE
	exit 60
fi

#echo $1 >> $LOGFILE
# If not exists, create new user with 

if [[ "$1" =~ ^[a-zA-Z0-9][a-zA-Z0-9-]+$ ]]; then
	echo "Valid username: \"$1\"" >> $LOGFILE
	# Is valid username
	CHECKUSER=`getent passwd "$1"`
	if [[ ${#CHECKUSER} -gt 6 ]]; then
		# User Exists
		echo "\"$1\" Exists" >> $LOGFILE
	else
		useradd -G webadd -m -b /htusers -s /usr/bin/bash "$1"
		echo "Added \"$1\" to the system" >> $LOGFILE
	fi
	# Ensure SSH filder exists
	USERDIR="$(eval echo "~$1")"
	if [ ! -d "$USERDIR/.ssh" ]; then
		echo "Generate ssh directory for \"$1\"" >> $LOGFILE
		mkdir -p "$USERDIR/.ssh"
		chown -R "$1" "USERDIR/.ssh"
	else
		echo "User .ssh exists" >> $LOGFILE
	fi
	# Append new key
	echo "$2 -> $USERDIR/.ssh/authorized_keys" >> $LOGFILE
	cat "$2" >> "$USERDIR/.ssh/authorized_keys"
	chmod 700 "$USERDIR/.ssh/authorized_keys"
	chown "$1" "$USERDIR/.ssh/authorized_keys"
	# Remove temp file
	rm -f "$2"
	echo "Done appending key to \"$1\"" >> $LOGFILE
	exit 0
else
	echo "\"$1\" Was an invalid username" >> $LOGFILE
	exit 64
fi