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<?php
function authenticate_user() {
header('WWW-Authenticate: Basic realm="Secret Stash"');
header("HTTP/1.0 401 Unauthorized");
exit;
}
if(! isset($_SERVER['PHP_AUTH_USER'])) {
authenticate_user();
} else {
mysql_connect("localhost","authenticator","secret") or die("Can't connect to database server!");
mysql_select_db("gilmorebook") or die("Can't select authentication database!");
$query = "SELECT username, pswd FROM user WHERE username='$_SERVER[PHP_AUTH_USER]'
AND pswd=MD5('$_SERVER[PHP_AUTH_PW]') AND ipAddress='$_SERVER[REMOTE_ADDR]'";
$result = mysql_query($query);
if (mysql_num_rows($result) == 0)
authenticate_user();
mysql_close();
}
?>
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