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| 10.15.2008 at 11:11AM PDT, ID: 23817714 |
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<?php session_start();?>
<?php
// location of this script
$thisfile = "login.php";
// relative path location of the authentication script
$auth = "validate.php";
// if the cookie has been set, if not, go to login screen
if (!isset($_SESSION['level'])) {
echo "<meta http-equiv=\"refresh\" content=\"0;URL=$auth?url=$thisfile\">";
} else {
$level = "$_SESSION['level']";
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Login</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<?php
//level for views.
if ($level < 1) {
?>
<h1>Welcome Administrator<h1>
<h5><a href="<?php echo "$auth?url=$thisfile&cmd=logout"; ?>">LOGOUT</a></h5>
<?php
} else {
?>
<h1>SECURITY ALERT</h1>
<p>You do not have sufficient level to view this information.</p>
<meta http-equiv="refresh" content="2;URL=<? echo "$auth?url=$thisfile"; ?>>
<?php
}
}
?>
</body>
</html>
validate.php
<?php session_start();
$_SESSION['level'] = 'level'; ?>
<?php
define('DBSERVER', 'localhost');
define('DATABASE', '********');
define('USER', '********');
define('PASSWRD', '********');
define('TABLE', 'users');
$thisfile = basename($SCRIPT_NAME);
$url = $_REQUEST['url'];
$cmd = $_REQUEST['cmd'];
$goto = $thisfile."?url=".$url;
if ($cmd == "logout") {
//let's delete the cookie
unset($_SESSION['level'];
$message = "<p>You have been logged out.</p>";
}
if ($cmd == "verify") {
$slogin = $_POST['username'];
$spassword = $_POST['password'];
//find the login
$sql="SELECT password, level FROM " . TABLE . " WHERE login='$slogin'";
$connection = mysql_connect(DBSERVER,USER,PASSWRD);
$selectdb = mysql_select_db(DATABASE);
$result = mysql_query($sql);
if(mysql_num_rows($result) == 0) {
//login was not found
$message = "<p>Username was not found. Try again? </p>";
} else {
//see what that password is
$row = mysql_fetch_array($result, MYSQL_ASSOC) ;
$password = $row['password'];
$level = $row['level'];
if($password == $spassword) {
//that's a match
$message = "<p>Your level level is $level.</p>";
//set session
echo $_SESSION['level'];
//redirect
$goto = $url;
} else {
//login okay, password did not match
$message = "<p>Password did not match username. Try again? </p>";
}
}
mysql_close($connection);
}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>User Validation</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<?php
if (($cmd == "verify") or ($cmd == "logout")) {
echo "$message";
?>
<meta http-equiv="refresh" content="2;URL=<?php echo "$goto";?>">
<?php } else { ?>
<h3 align="center">Please enter database username and password:</h3>
<form name="form1" method="post" action="<?php echo "$thisfile";?>">
<div align="center">
<table border="0">
<tr>
<td><strong>Username</strong>:</td>
<td><input name="username" type="text" size="20" maxlength="20"></td>
</tr>
<tr>
<td><strong>Password</strong>:</td>
<td><input name="password" type="password" id="password" size="20" maxlength="20">
</td>
</tr>
<tr>
<td colspan="2"><input type="submit" name="Submit" value="Submit"> <input name="Reset" type="reset" id="Reset" value="Reset"></td>
</tr>
</table>
<input name="cmd" type="hidden" id="cmd" value="verify">
<input name="url" type="hidden" id="url" value="<?php echo "$url" ?>">
</div>
</form>
<?php } ?>
</body>
</html>
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