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<?php
/*
* Identity Provider Example -- Single Sing On
*
* Copyright (C) 2004 Entr'ouvert
* http://lasso.entrouvert.org
*
* Authors: Christophe Nowicki <cnowicki@easter-eggs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
require_once 'HTML/QuickForm.php';
require_once 'DB.php';
$config = unserialize(file_get_contents('config.inc'));
session_start();
// Create the form
$form = new HTML_QuickForm('frm');
$form->addElement('header', null, 'Single Sing On Login');
$form->addElement('text', 'username', 'Username:', array('size' => 50, 'maxlength' => 255));
$form->addElement('password', 'password', 'Password:', array('size' => 50, 'maxlength' => 255));
$form->addElement('submit', null, 'Ok');
$form->addRule('username', 'Please enter the Username', 'required', null, 'client');
$form->addRule('password', 'Please enter the Password', 'required', null, 'client');
function singleSignOn_done($config, $db, $user_id = 0)
{
$server_dump = file_get_contents($config['server_dump_filename']);
lasso_init();
$server = LassoServer::newFromDump($server_dump);
$login = LassoLogin::newFromDump($server, $_SESSION['login_dump']);
$authenticationMethod =
(($_SERVER["HTTPS"] == 'on') ? lassoSamlAuthenticationMethodSecureRemotePassword : lassoSamlAuthenticationMethodPassword);
// reauth in session_cache_expire default is 180 minutes
$reauthenticateOnOrAfter = strftime("%Y-%m-%dT%H:%M:%SZ", time() + session_cache_expire() * 60);
if ($login->protocolProfile == lassoLoginProtocolProfileBrwsArt)
{
$login->buildArtifactMsg(
TRUE, // User is authenticated
$authenticationMethod,
$reauthenticateOnOrAfter,
lassoHttpMethodRedirect);
}
else if ($login->protocolProfile == lassoLoginProtocolProfileBrwsPost)
{
// TODO
print "TODO : Post\n";
exit();
}
else
die("Unknown protocol profile for login:" . $login->protocolProfile);
if (empty($user_id))
{
// Get user_id
$query = "SELECT user_id FROM nameidentifiers WHERE name_identifier='";
$query .= $login->nameIdentifier . "'";
$res =& $db->query($query);
if (DB::isError($res))
die($res->getMessage());
$row = $res->fetchRow();
$user_id = $row[0];
}
else
{
// Save name identifier
if (!$res->numRows())
{
$query = "INSERT INTO nameidentifiers (name_identifier, user_id) ";
$query .= "VALUES ('" . $login->nameIdentifier . "','$user_id')";
$res =& $db->query($query);
if (DB::isError($res))
die($res->getMessage());
$name_identifier = $login->nameIdentifier;
}
}
if ($login->isIdentityDirty)
{
$identity = $login->identity;
$query = "UPDATE users SET user_dump=".$db->quoteSmart($identity->dump());
$query .= " WHERE user_id='$user_id'";
$res =& $db->query($query);
if (DB::isError($res))
die($res->getMessage());
}
// Update identity dump
$identity = $login->identity;
$query = "UPDATE users SET user_dump=".$db->quoteSmart($identity->dump())." WHERE user_id='$user_id'";
$res =& $db->query($query);
if (DB::isError($res))
die($res->getMessage());
// Update session dump
$session = $login->session;
$query = "UPDATE users SET session_dump=".$db->quoteSmart($session->dump())." WHERE user_id='$user_id'";
$res =& $db->query($query);
if (DB::isError($res))
die($res->getMessage());
if (empty($login->assertionArtifact))
die("assertion Artifact is empty");
$assertion = $login->assertion;
$assertion_dump = $assertion->dump();
if (empty($assertion_dump))
die("assertion dump is empty");
// Save assertion
$query = "INSERT INTO assertions (assertion, response_dump, created) VALUES ";
$query .= "('".$login->assertionArtifact."',".$db->quoteSmart($assertion_dump).", NOW())";
$res =& $db->query($query);
if (DB::isError($res))
die($res->getMessage());
$_SESSION['login_dump'] = $login->dump();
$_SESSION['session_dump'] = $session->dump();
if ($login->protocolProfile == lassoLoginProtocolProfileBrwsArt)
{
$url = $login->msgUrl;
header("Request-URI: $url");
header("Content-Location: $url");
header("Location: $url");
}
else if ($login->protocolProfile == lassoLoginProtocolProfileBrwsPost)
{
}
lasso_shutdown();
}
if (!$form->validate())
{
// Check for AuthnRequest
if (empty($_POST) && empty($_GET))
{
die("Unknow login methode!");
}
lasso_init();
$server_dump = file_get_contents($config['server_dump_filename']);
$server = LassoServer::newfromdump($server_dump);
if (!empty($_SESSION['login_dump']))
$login = LassoLogin::newFromDump($server, $_SESSION['login_dump']);
else
$login = new LassoLogin($server);
if (!empty($_SESSION['session_dump']))
$login->setSessionFromDump($_SESSION['session_dump']);
if ($_SERVER['REQUEST_METHOD'] = 'GET')
$login->initFromAuthnRequestMsg($_SERVER['QUERY_STRING'], lassoHttpMethodRedirect);
else
{
// TODO
exit;
}
// User must NOT Authenticate with the IdP
if (!$login->mustAuthenticate())
{
$db = &DB::connect($config['dsn']);
if (DB::isError($db))
die($db->getMessage());
singleSignOn_done($config, $db);
$db->disconnect();
exit;
}
$login_dump = $login->dump();
$session = $login->session;
$_SESSION['login_dump'] = $login->dump();
$_SESSION['session_dump'] = $session->dump();
lasso_shutdown();
}
if (isset($_SESSION['login_dump']) && $form->validate())
{
$db = &DB::connect($config['dsn']);
if (DB::isError($db))
die($db->getMessage());
$query = "SELECT user_id FROM users WHERE username=" . $db->quoteSmart($form->exportValue('username'));
$query .= " AND password=" . $db->quoteSmart($form->exportValue('password'));;
$res =& $db->query($query);
if (DB::isError($res))
die($res->getMessage());
if ($res->numRows())
{
$row = $res->fetchRow();
$user_id = $row[0];
singleSignOn_done($config, $db, $user_id);
$db->disconnect();
exit();
}
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<body>
<?php
$form->display();
?>
</body>
</html>
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