/**
* This test is to check and make sure that the nonce system is typecast tolerant.
*
* This causes issue because Core models are not strict in their datatypes.
* ie: an int may be 123 or "123", and to Core they're both the same.
*/
public function testStrictTypecastTolerance()
{
$d1 = ['something' => '123'];
$d2 = ['something' => 123];
$nonce = NonceModel::Generate('12 seconds', $d1);
$this->assertTrue(NonceModel::ValidateAndUse($nonce, $d2));
}
/**
* Form Handler for logging in.
*
* @static
*
* @param \Form $form
*
* @return bool|null|string
*/
public static function LoginHandler(\Form $form){
/** @var \FormElement $e */
$e = $form->getElement('email');
/** @var \FormElement $p */
$p = $form->getElement('pass');
/** @var \UserModel $u */
$u = \UserModel::Find(array('email' => $e->get('value')), 1);
if(!$u){
// Log this as a login attempt!
$logmsg = 'Failed Login. Email not registered' . "\n" . 'Email: ' . $e->get('value') . "\n";
\SystemLogModel::LogSecurityEvent('/user/login', $logmsg);
$e->setError('t:MESSAGE_ERROR_USER_LOGIN_EMAIL_NOT_FOUND');
return false;
}
if($u->get('active') == 0){
// The model provides a quick cut-off for active/inactive users.
// This is the control managed with in the admin.
$logmsg = 'Failed Login. User tried to login before account activation' . "\n" . 'User: '******'email') . "\n";
\SystemLogModel::LogSecurityEvent('/user/login', $logmsg, null, $u->get('id'));
$e->setError('t:MESSAGE_ERROR_USER_LOGIN_ACCOUNT_NOT_ACTIVE');
return false;
}
elseif($u->get('active') == -1){
// The model provides a quick cut-off for active/inactive users.
// This is the control managed with in the admin.
$logmsg = 'Failed Login. User tried to login after account deactivation.' . "\n" . 'User: '******'email') . "\n";
\SystemLogModel::LogSecurityEvent('/user/login', $logmsg, null, $u->get('id'));
$e->setError('t:MESSAGE_ERROR_USER_LOGIN_ACCOUNT_DEACTIVATED');
return false;
}
try{
/** @var \Core\User\AuthDrivers\datastore $auth */
$auth = $u->getAuthDriver('datastore');
}
catch(Exception $e){
$e->setError('t:MESSAGE_ERROR_USER_LOGIN_PASSWORD_AUTH_DISABLED');
return false;
}
// This is a special case if the password isn't set yet.
// It can happen with imported users or if a password is invalidated.
if($u->get('password') == ''){
// Use the Nonce system to generate a one-time key with this user's data.
$nonce = \NonceModel::Generate(
'20 minutes',
['type' => 'password-reset', 'user' => $u->get('id')]
);
$link = '/datastoreauth/forgotpassword?e=' . urlencode($u->get('email')) . '&n=' . $nonce;
$email = new \Email();
$email->setSubject('Initial Password Request');
$email->to($u->get('email'));
$email->assign('link', \Core\resolve_link($link));
$email->assign('ip', REMOTE_IP);
$email->templatename = 'emails/user/initialpassword.tpl';
try{
$email->send();
\SystemLogModel::LogSecurityEvent('/user/initialpassword/send', 'Initial password request sent successfully', null, $u->get('id'));
\Core\set_message('t:MESSAGE_INFO_USER_LOGIN_MUST_SET_NEW_PASSWORD_INSTRUCTIONS_HAVE_BEEN_EMAILED');
return true;
}
catch(\Exception $e){
\Core\ErrorManagement\exception_handler($e);
\Core\set_message('t:MESSAGE_ERROR_USER_LOGIN_MUST_SET_NEW_PASSWORD_UNABLE_TO_SEND_EMAIL');
return false;
}
}
if(!$auth->checkPassword($p->get('value'))){
// Log this as a login attempt!
$logmsg = 'Failed Login. Invalid password' . "\n" . 'Email: ' . $e->get('value') . "\n";
\SystemLogModel::LogSecurityEvent('/user/login/failed_password', $logmsg, null, $u->get('id'));
// Also, I want to look up and see how many login attempts there have been in the past couple minutes.
// If there are too many, I need to start slowing the attempts.
$time = new \CoreDateTime();
$time->modify('-5 minutes');
$securityfactory = new \ModelFactory('SystemLogModel');
$securityfactory->where('code = /user/login/failed_password');
$securityfactory->where('datetime > ' . $time->getFormatted(\Time::FORMAT_EPOCH, \Time::TIMEZONE_GMT));
$securityfactory->where('ip_addr = ' . REMOTE_IP);
$attempts = $securityfactory->count();
if($attempts > 4){
// Start slowing down the response. This should help deter brute force attempts.
// (x+((x-7)/4)^3)-4
sleep( ($attempts+(($attempts-7)/4)^3)-4 );
// This makes a nice little curve with the following delays:
// 5th attempt: 0.85
// 6th attempt: 2.05
// 7th attempt: 3.02
// 8th attempt: 4.05
// 9th attempt: 5.15
// 10th attempt: 6.52
// 11th attempt: 8.10
// 12th attempt: 10.05
}
$e->setError('t:MESSAGE_ERROR_USER_LOGIN_INCORRECT_PASSWORD');
$p->set('value', '');
return false;
}
if($form->getElementValue('redirect')){
// The page was set via client-side javascript on the login page.
// This is the most reliable option.
$url = $form->getElementValue('redirect');
}
elseif(REL_REQUEST_PATH == '/user/login'){
// If the user came from the registration page, get the page before that.
$url = $form->referrer;
}
else{
// else the registration link is now on the same page as the 403 handler.
$url = REL_REQUEST_PATH;
}
// Well, record this too!
\SystemLogModel::LogSecurityEvent('/user/login', 'Login successful (via password)', null, $u->get('id'));
// yay...
$u->set('last_login', \CoreDateTime::Now('U', \Time::TIMEZONE_GMT));
$u->save();
\Core\Session::SetUser($u);
// Allow an external script to override the redirecting URL.
$overrideurl = \HookHandler::DispatchHook('/user/postlogin/getredirecturl');
if($overrideurl){
$url = $overrideurl;
}
return $url;
}
/**
* Shorthand function to lookup a nonce from the database.
*
* @param $key
* @return NonceModel|null
*/
public static function LookupKey($key)
{
$key = strtolower($key);
$search = NonceModel::Find(['key' => $key], 1);
return $search;
}
/**
* Page to enable Facebook logins for user accounts.
*
* @return int|null|string
*/
public function enable()
{
$request = $this->getPageRequest();
$auths = \Core\User\Helper::GetEnabledAuthDrivers();
if (!isset($auths['facebook'])) {
// Facebook isn't enabled, simply redirect to the home page.
\Core\redirect('/');
}
if (!FACEBOOK_APP_ID) {
\Core\redirect('/');
}
if (!FACEBOOK_APP_SECRET) {
\Core\redirect('/');
}
// If it was a POST, then it should be the first page.
if ($request->isPost()) {
$facebook = new Facebook(['appId' => FACEBOOK_APP_ID, 'secret' => FACEBOOK_APP_SECRET]);
// Did the user submit the facebook login request?
if (isset($_POST['login-method']) && $_POST['login-method'] == 'facebook' && $_POST['access-token']) {
try {
$facebook->setAccessToken($_POST['access-token']);
/** @var int $fbid The user ID from facebook */
$fbid = $facebook->getUser();
/** @var array $user_profile The array of user data from Facebook */
$user_profile = $facebook->api('/me');
} catch (Exception $e) {
\Core\set_message($e->getMessage(), 'error');
\Core\go_back();
return null;
}
// If the user is logged in, then the verification logic is slightly different.
if (\Core\user()->exists()) {
// Logged in users, the email must match.
if (\Core\user()->get('email') != $user_profile['email']) {
\Core\set_message('Your Facebook email is ' . $user_profile['email'] . ', which does not match your account email! Unable to link accounts.', 'error');
\Core\go_back();
return null;
}
$user = \Core\user();
} else {
/** @var \UserModel|null $user */
$user = UserModel::Find(['email' => $user_profile['email']], 1);
if (!$user) {
\Core\set_message('No local account found with the email ' . $user_profile['email'] . ', please <a href="' . \Core\resolve_link('/user/register') . '"create an account</a> instead.', 'error');
\Core\go_back();
return null;
}
}
// Send an email with a nonce link that will do the actual activation.
// This is a security feature so just anyone can't link another user's account.
$nonce = NonceModel::Generate('20 minutes', null, ['user' => $user, 'access_token' => $_POST['access-token']]);
$email = new Email();
$email->to($user->get('email'));
$email->setSubject('Facebook Activation Request');
$email->templatename = 'emails/facebook/enable_confirmation.tpl';
$email->assign('link', \Core\resolve_link('/facebook/enable/' . $nonce));
if ($email->send()) {
\Core\set_message('An email has been sent to your account with a link enclosed. Please click on that to complete activation within twenty minutes.', 'success');
\Core\go_back();
return null;
} else {
\Core\set_message('Unable to send a confirmation email, please try again later.', 'error');
\Core\go_back();
return null;
}
}
}
// If there is a nonce enclosed, then it should be the second confirmation page.
// This is the one that actually performs the action.
if ($request->getParameter(0)) {
/** @var NonceModel $nonce */
$nonce = NonceModel::Construct($request->getParameter(0));
if (!$nonce->isValid()) {
\Core\set_message('Invalid key requested.', 'error');
\Core\redirect('/');
return null;
}
$nonce->decryptData();
$data = $nonce->get('data');
/** @var UserModel $user */
$user = $data['user'];
try {
$facebook = new Facebook(['appId' => FACEBOOK_APP_ID, 'secret' => FACEBOOK_APP_SECRET]);
$facebook->setAccessToken($data['access_token']);
$facebook->getUser();
$facebook->api('/me');
} catch (Exception $e) {
\Core\set_message($e->getMessage(), 'error');
\Core\redirect('/');
return null;
}
$user->enableAuthDriver('facebook');
/** @var \Facebook\UserAuth $auth */
$auth = $user->getAuthDriver('facebook');
$auth->syncUser($data['access_token']);
\Core\set_message('Linked Facebook successfully!', 'success');
// And log the user in!
if (!\Core\user()->exists()) {
$user->set('last_login', \CoreDateTime::Now('U', \Time::TIMEZONE_GMT));
$user->save();
\Core\Session::SetUser($user);
}
\Core\redirect('/');
return null;
}
}
/**
* Simple controller to activate a user account.
* Meant to be called with json only.
*/
public function activate(){
$req = $this->getPageRequest();
$view = $this->getView();
$userid = $req->getPost('user') ? $req->getPost('user') : $req->getParameter('user');
$active = ($req->getPost('status') !== null) ? $req->getPost('status') : $req->getParameter('status');
if($active === '') $active = 1; // default.
if(!\Core\user()->checkAccess('p:/user/users/manage')){
return View::ERROR_ACCESSDENIED;
}
if(!$req->isPost()){
return View::ERROR_BADREQUEST;
}
if(!$userid){
return View::ERROR_BADREQUEST;
}
$user = UserModel::Construct($userid);
if(!$user->exists()){
return View::ERROR_NOTFOUND;
}
$user->set('active', $active);
$user->save();
// Send an activation notice email to the user if the active flag is set to true.
if($active){
try{
$email = new Email();
if(!$user->get('password')){
// Generate a Nonce for this user with the password reset.
// Use the Nonce system to generate a one-time key with this user's data.
$nonce = NonceModel::Generate(
'1 week',
['type' => 'password-reset', 'user' => $user->get('id')]
);
$setpasswordlink = \Core\resolve_link('/datastoreauth/forgotpassword?e=' . urlencode($user->get('email')) . '&n=' . $nonce);
}
else{
$setpasswordlink = null;
}
$email->templatename = 'emails/user/activation.tpl';
$email->assign('user', $user);
$email->assign('sitename', SITENAME);
$email->assign('rooturl', ROOT_URL);
$email->assign('loginurl', \Core\resolve_link('/user/login'));
$email->assign('setpasswordlink', $setpasswordlink);
$email->setSubject('Welcome to ' . SITENAME);
$email->to($user->get('email'));
// TESTING
//error_log($email->renderBody());
$email->send();
}
catch(\Exception $e){
\Core\ErrorManagement\exception_handler($e);
}
}
if($req->isJSON()){
$view->mode = View::MODE_AJAX;
$view->contenttype = View::CTYPE_JSON;
$view->jsondata = array(
'userid' => $user->get('id'),
'active' => $user->get('active'),
);
}
else{
\Core\go_back();
}
}
/**
* Validate the verification email, part 2 of confirmation.
*
* @param string $nonce
* @param string $signature
*
* @return bool|string
*/
public static function ValidateVerificationResponse($nonce, $signature) {
/** @var \NonceModel $nonce */
$nonce = \NonceModel::Construct($nonce);
if(!$nonce->isValid()){
\SystemLogModel::LogSecurityEvent('/user/gpg/verified', 'FAILED to verify key (Invalid NONCE)', null);
return 'Invalid nonce provided!';
}
// Now is where the real fun begins.
$nonce->decryptData();
$data = $nonce->get('data');
/** @var \UserModel $user */
$user = \UserModel::Construct($data['user']);
$gpg = new \Core\GPG\GPG();
$key = $data['key'];
$pubKey = $gpg->getKey($key);
try{
$sig = $gpg->verifyDataSignature($signature, $data['sentence']);
}
catch(\Exception $e){
\SystemLogModel::LogSecurityEvent('/user/gpg/verified', 'FAILED to verify key ' . $key, null, $user->get('id'));
return 'Invalid signature';
}
$fpr = str_replace(' ', '', $sig->fingerprint); // Trim spaces.
if($key != $fpr && $key != $sig->keyID){
// They must match!
\SystemLogModel::LogSecurityEvent('/user/gpg/verified', 'FAILED to verify key ' . $key, null, $user->get('id'));
return 'Invalid signature';
}
// Otherwise?
$user->enableAuthDriver('gpg');
$user->set('gpgauth_pubkey', $fpr);
// Was there a photo attached to this public key?
if(sizeof($pubKey->getPhotos()) > 0){
$p = $pubKey->getPhotos();
// I just want the first.
/** @var \Core\Filestore\File $p */
$p = $p[0];
$localFile = \Core\Filestore\Factory::File('public/user/avatar/' . $pubKey->fingerprint . '.' . $p->getExtension());
$p->copyTo($localFile);
$user->set('avatar', $localFile->getFilename(false));
}
$user->save();
$nonce->markUsed();
\SystemLogModel::LogSecurityEvent('/user/gpg/verified', 'Verified key ' . $fpr, null, $user->get('id'));
return true;
}
