Hi everyone,
I am giving a shot at a typical login script, which plucks usernames,
passwords, and access levels from 2 databases. The passwords database uses
md5 encryption, I havn't much of a clue what I am doing with that though.
My real problem, if thats not it, lies with the verification. I try to log
in using a real account/password, and a fake account/password, and it
simply reloads the form without displaying any of the 'else' statements.
Any help would be appreciated.
Script is 'supposed' to function like this;
-> Collect form information.
-> Connects to database.
-> Sets $db_user as ID(TINYINT(6)) from database Users.
-> Sets $db_pass as Password(MD5(32)) from database Passwords.
-> Converts the $db_pass(Password from FORM) to MD5 hash.
-> Checks if password(MD5) from FORM matches password(MD5) from database.
-> -> If match get access level from Users & set some cookies.
-> -> If failed kick their asses ;)
-> Checks if access level matches either 1, 2, or 3 and displays relative
info.
Areas of concern for me are MD5, $GLOBALS, and PHP_SELF. (Are those
correct?)
<? if ($submit) {
$db = mysql_connect("localhost", "dbname", "dbpassword");
mysql_select_db("mydb", $db);
$db_user = "
SELECT ID FROM dbusers
WHERE UserName = '$username'";
$db_pass = "
SELECT Password FROM dbpasswords
WHERE ID = '$db_user'";
$db_pass_temp = MD5('$db_pass');
if ($password == $db_pass_temp) {
$db_access = "
SELECT Access FROM dbusers
WHERE ID = '$db_user'";
setcookie('user', $_POST['$db_user'], (time()
+2592000), '/', '', 0);
setcookie('access', $_POST['$db_access'], (time()
+2592000), '/', '', 0);
}
else {
echo "Password specified was incorrect.";
}
if ($db_access == "1") {
echo "You are logged in as an Administrator.<BR>
<A href='next.php'>Click here for options.</A>";
}
elseif ($db_access == "2") {
echo "You are logged in as a Power User.<BR>
<A href='next.php'>Click here for options.</A>";
}
elseif ($db_access == "3") {
echo "Welcome to this place, you are logged in.<BR>
<A href='next.php'>Click here for options.</A>";
}
}
?>
<FORM method="POST" action="<? echo $GLOBALS ['PHP_SELF'];?>">
Name:<INPUT type="text" name="username" selected><BR>
Password:<INPUT type="password" name="password"><BR>
<INPUT type="submit" name="submit" value="Login">
</FORM>
Hartleigh Burton
www.channel-x.org
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