/**
* @param Controller $controller
* @param string $methodName
*/
public function beforeController($controller, $methodName)
{
if ($this->reflector->hasAnnotation('PublicPage')) {
// Don't block public pages
return;
}
if ($controller instanceof \OC\Core\Controller\LoginController && $methodName === 'logout') {
// Don't block the logout page, to allow canceling the 2FA
return;
}
if ($this->userSession->isLoggedIn()) {
$user = $this->userSession->getUser();
if ($this->twoFactorManager->isTwoFactorAuthenticated($user)) {
$this->checkTwoFactor($controller, $methodName);
} else {
if ($controller instanceof TwoFactorChallengeController) {
// Allow access to the two-factor controllers only if two-factor authentication
// is in progress.
throw new UserAlreadyLoggedInException();
}
}
}
// TODO: dont check/enforce 2FA if a auth token is used
}
/**
* @PublicPage
* @UseSession
*
* @param string $user
* @param string $password
* @param string $redirect_url
* @return RedirectResponse
*/
public function tryLogin($user, $password, $redirect_url)
{
$originalUser = $user;
// TODO: Add all the insane error handling
/* @var $loginResult IUser */
$loginResult = $this->userManager->checkPassword($user, $password);
if ($loginResult === false) {
$users = $this->userManager->getByEmail($user);
// we only allow login by email if unique
if (count($users) === 1) {
$user = $users[0]->getUID();
$loginResult = $this->userManager->checkPassword($user, $password);
}
}
if ($loginResult === false) {
$this->session->set('loginMessages', [['invalidpassword']]);
// Read current user and append if possible - we need to return the unmodified user otherwise we will leak the login name
$args = !is_null($user) ? ['user' => $originalUser] : [];
return new RedirectResponse($this->urlGenerator->linkToRoute('core.login.showLoginForm', $args));
}
// TODO: remove password checks from above and let the user session handle failures
// requires https://github.com/owncloud/core/pull/24616
$this->userSession->login($user, $password);
$this->userSession->createSessionToken($this->request, $loginResult->getUID(), $user, $password);
if ($this->twoFactorManager->isTwoFactorAuthenticated($loginResult)) {
$this->twoFactorManager->prepareTwoFactorLogin($loginResult);
if (!is_null($redirect_url)) {
return new RedirectResponse($this->urlGenerator->linkToRoute('core.TwoFactorChallenge.selectChallenge', ['redirect_url' => $redirect_url]));
}
return new RedirectResponse($this->urlGenerator->linkToRoute('core.TwoFactorChallenge.selectChallenge'));
}
if (!is_null($redirect_url) && $this->userSession->isLoggedIn()) {
$location = $this->urlGenerator->getAbsoluteURL(urldecode($redirect_url));
// Deny the redirect if the URL contains a @
// This prevents unvalidated redirects like ?redirect_url=:user@domain.com
if (strpos($location, '@') === false) {
return new RedirectResponse($location);
}
}
return new RedirectResponse($this->urlGenerator->linkToRoute('files.view.index'));
}
/**
* @param RequestInterface $request
* @param ResponseInterface $response
* @return array
* @throws NotAuthenticated
*/
private function auth(RequestInterface $request, ResponseInterface $response)
{
$forcedLogout = false;
if (!$this->request->passesCSRFCheck() && $this->requiresCSRFCheck()) {
// In case of a fail with POST we need to recheck the credentials
if ($this->request->getMethod() === 'POST') {
$forcedLogout = true;
} else {
$response->setStatus(401);
throw new \Sabre\DAV\Exception\NotAuthenticated('CSRF check not passed.');
}
}
if ($forcedLogout) {
$this->userSession->logout();
} else {
if ($this->twoFactorManager->needsSecondFactor()) {
throw new \Sabre\DAV\Exception\NotAuthenticated('2FA challenge not passed.');
}
if (\OC_User::handleApacheAuth() || $this->userSession->isLoggedIn() && is_null($this->session->get(self::DAV_AUTHENTICATED)) || $this->userSession->isLoggedIn() && $this->session->get(self::DAV_AUTHENTICATED) === $this->userSession->getUser()->getUID() && $request->getHeader('Authorization') === null) {
$user = $this->userSession->getUser()->getUID();
\OC_Util::setupFS($user);
$this->currentUser = $user;
$this->session->close();
return [true, $this->principalPrefix . $user];
}
}
if (!$this->userSession->isLoggedIn() && in_array('XMLHttpRequest', explode(',', $request->getHeader('X-Requested-With')))) {
// do not re-authenticate over ajax, use dummy auth name to prevent browser popup
$response->addHeader('WWW-Authenticate', 'DummyBasic realm="' . $this->realm . '"');
$response->setStatus(401);
throw new \Sabre\DAV\Exception\NotAuthenticated('Cannot authenticate over ajax calls');
}
$data = parent::check($request, $response);
if ($data[0] === true) {
$startPos = strrpos($data[1], '/') + 1;
$user = $this->userSession->getUser()->getUID();
$data[1] = substr_replace($data[1], $user, $startPos);
}
return $data;
}
