#!/bin/bash

# First check that we have a username as $1. If not, ask for the username
if [ "$#" -eq 0 ]
then
	echo -n "Please enter the login : "
	read LOGIN
else
	LOGIN="$1"
fi

# Check that the login exists : 
MYSQL="mysql  --defaults-file=/etc/alternc/my.cnf --skip-column-name alternc -B -e "

USERID="`$MYSQL "SELECT uid FROM membres WHERE login='${LOGIN}'"`"

if [ ! "$USERID" ]
then
	echo "Login '$LOGIN' not found"
	if [ "$LOGIN" = "admin" ]
	then
		echo "You may try 'root' instead (old alternc)"
	fi	
	if [ "$LOGIN" = "root" ]
	then
		echo "You may try 'admin' instead (new alternc)"
	fi	
	exit -1
fi


echo -n "Please enter the new password : "
read -s PASS
echo 
echo -n "Please confirm the new password : "
read -s PASS2
echo
if [ "$PASS" != "$PASS2" ]
then
	echo "Passwords are differents, aborting"
	exit -2
fi

RND="`echo -n $RANDOM $RANDOM $RANDOM`"
$MYSQL "UPDATE membres SET pass=ENCRYPT('$PASS',CONCAT('\$1\$',MD5('$RND'))) WHERE uid='$USERID'"
if [ "$?" ]
then
	echo "Password changed successfully"
fi