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login.php
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login.php
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<?php
/* Peat's version of coova chilli hotspot login page */
/*
* possible Cases:
*
* attempt to login login=Login
* 1: Login successful res=success
* 2: Login failed res=failed
* 3: Logged out res=logoff
* 4: Tried to login while already logged in res=already
* 5: Not logged in yet res=notyet
* 11: Popup res=popup1
* 12: Popup res=popup2
* 13: Popup res=popup3
* 0: It was not a form request res=''
*
* Read query parameters which we care about
*
* $_GET['res'];
* $_GET['challenge'];
* $_GET['uamip'];
* $_GET['uamport'];
* $_GET['reply'];
* $_GET['userurl'];
* $_GET['timeleft'];
* $_GET['redirurl'];
*
* Read form parameters which we care about
*
* $_GET['username'];
* $_GET['password'];
* $_GET['chal'];
* $_GET['login'];
* $_GET['logout'];
* $_GET['prelogin'];
* $_GET['res'];
* $_GET['uamip'];
* $_GET['uamport'];
* $_GET['userurl'];
* $_GET['timeleft'];
* $_GET['redirurl'];
* $_GET['store_cookie'];
*/
require_once 'config.php';
require_once 'functions.php';
function readUamUrl() {
global $config;
if (isset($_REQUEST['uamip']) && isset($_REQUEST['uamport'])) {
$config['UAM_URL']='http://'.$_REQUEST['uamip'].':'.$_REQUEST['uamport'];
}
else if (isset($_REQUEST['uamurl'])) {
$config['UAM_URL']=$_REQUEST['uamurl'];
}
}
function handleUsernamePasswordLogin() {
global $config;
if (!isset($_REQUEST['UserName']) || !isset($_REQUEST['Password'])) {
global $errorCode;
$errorCode = 'invalidReq';
goToFile("./error.php");
}
else if (!isset($_REQUEST['challenge'])) {
redirect($config['UAM_URL'] . '/prelogin');
}
if ($config['UAM_RAD_PROTO'] == 'pap') {
$response = exec('chilli_response -pap ' .
escapeshellarg($_REQUEST['challenge']) . ' ' .
escapeshellarg($config['UAM_SECRET']) . ' ' .
escapeshellarg($_REQUEST['Password']));
$url = $config['UAM_URL'] .
'/login?username=' . urlencode($_REQUEST['UserName']) .
'&password=' . urlencode($response);
}
else if ($config['UAM_RAD_PROTO'] == 'mschapv2') {
$response = exec('chilli_response -nt ' .
escapeshellarg($_REQUEST['challenge']) . ' ' .
escapeshellarg($config['UAM_SECRET']) . ' ' .
escapeshellarg($_REQUEST['UserName']) . ' ' .
escapeshellarg($_REQUEST['Password']));
$url = $config['UAM_URL'] .
'/login?username=' . urlencode($_REQUEST['UserName']) .
'&ntresponse=' . urlencode($response);
}
else {
$response = exec('chilli_response ' .
escapeshellarg($_REQUEST['challenge']) . ' ' .
escapeshellarg($config['UAM_SECRET']) . ' ' .
escapeshellarg($_REQUEST['Password']));
$url = $config['UAM_URL'] .
'/login?username=' . urlencode($_REQUEST['UserName']) .
'&response=' . urlencode($response);
}
if (isset($_REQUEST['userurl'])) {
$url = $url . '&userurl=' . urlencode($_REQUEST['userurl']);
}
redirect($url);
}
function handleWISPrLogin() {
global $config;
$WISPrVersion = '1.0';
if (isset($_REQUEST['WISPrVersion'])) {
$WISPrVersion = $_REQUEST['WISPrVersion'];
}
if ($WISPrVersion != '1.0' && $WISPrVersion != '2.0') {
$WISPrVersion = '2.0';
}
if (isset($_REQUEST['WISPrEAPMsg'])) {
if ($WISPrVersion != '2.0' || isset($_REQUEST['Password'])) {
global $errorCode;
$errorCode = "254";
goToFile("./WISPrError.php");
}
else {
redirect($config['UAM_URL'] .
'/login?username=' . urlencode($_REQUEST['UserName']) .
'&WISPrEAPMsg=' . urlencode($_REQUEST['WISPrEAPMsg']) .
'&WISPrVersion=2.0');
}
}
else {
handleUsernamePasswordLogin();
}
}
function validateReqest() {
//Do nothing until I figure out algorithm
}
function redirectToTarget() {
global $config;
global $url;
if (isset($_REQUEST['redirurl'])) {
$url = $_REQUEST['redirurl'];
}
else {
$url = $_REQUEST['userurl'];
}
$url = htmlspecialchars($url);
goToFile("./redirect.php");
}
function redirectToLoginPage() {
global $config;
global $chal, $userurl, $errMsg;
if (!isset($_REQUEST['challenge'])) {
redirect($config['UAM_URL'] . '/prelogin');
}
$chal = htmlspecialchars($_REQUEST['challenge']);
if (isset($_REQUEST['userurl'])) {
$userurl = htmlspecialchars($_REQUEST['userurl']);
} else {
$userurl = '';
}
if ($_REQUEST['res'] == 'failed') {
if (isset($_REQUEST['reply'])) {
$errMsg = htmlspecialchars($_REQUEST['reply']);
}
else {
//TODO: use string file, for translation and customization.
$errMsg = 'Wrong username or password.';
}
} else {
$errMsg = '';
}
goToFile("./loginForm.php");
}
readUamUrl();
//Handle login
if ($_REQUEST['res'] == 'wispr') {
handleWISPrLogin();
}
else if ($_REQUEST['UserName'] != '') {
handleUsernamePasswordLogin();
}
else {
validateReqest();
//Handle redirect to target
if ($_REQUEST['res'] == 'success' || $_REQUEST['res'] == 'already') {
redirectToTarget();
}
//Handle redirect to login
else {
redirectToLoginPage();
}
}
?>