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<?php
/**
* Piwik - free/libre analytics platform
*
* @link https://matomo.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\Session;
use Exception;
use Piwik\Auth as AuthInterface;
use Piwik\AuthResult;
use Piwik\Piwik;
use Piwik\Session;
/**
* Initializes authenticated sessions using an Auth implementation.
*/
class SessionInitializer
{
/**
* Authenticates the user and, if successful, initializes an authenticated session.
*
* @param \Piwik\Auth $auth The Auth implementation to use.
* @throws Exception If authentication fails or the user is not allowed to login for some reason.
*/
public function initSession(AuthInterface $auth)
{
$this->regenerateSessionId();
$authResult = $this->doAuthenticateSession($auth);
if (!$authResult->wasAuthenticationSuccessful()) {
Piwik::postEvent('Login.authenticate.failed', array($auth->getLogin()));
$this->processFailedSession();
} else {
Piwik::postEvent('Login.authenticate.successful', array($auth->getLogin()));
$this->processSuccessfulSession($authResult);
}
}
/**
* Authenticates the user.
*
* Derived classes can override this method to customize authentication logic or impose
* extra requirements on the user trying to login.
*
* @param AuthInterface $auth The Auth implementation to use when authenticating.
* @return AuthResult
*/
protected function doAuthenticateSession(AuthInterface $auth)
{
Piwik::postEvent(
'Login.authenticate',
array(
$auth->getLogin(),
)
);
return $auth->authenticate();
}
/**
* Executed when the session could not authenticate.
*
* @throws Exception always.
*/
protected function processFailedSession()
{
throw new Exception(Piwik::translate('Login_LoginPasswordNotCorrect'));
}
/**
* Executed when the session was successfully authenticated.
*
* @param AuthResult $authResult The successful authentication result.
*/
protected function processSuccessfulSession(AuthResult $authResult)
{
$sessionIdentifier = new SessionFingerprint();
$sessionIdentifier->initialize($authResult->getIdentity(), $authResult->getTokenAuth(), $this->isRemembered());
/**
* @ignore
*/
Piwik::postEvent('Login.authenticate.processSuccessfulSession.end', array($authResult->getIdentity()));
}
protected function regenerateSessionId()
{
Session::regenerateId();
}
/**
* Accessor to compute the hashed authentication token.
*
* @param string $login user login
* @param string $token_auth authentication token
* @return string hashed authentication token
* @deprecated
*/
public static function getHashTokenAuth($login, $token_auth)
{
return md5($login . $token_auth);
}
private function isRemembered()
{
$cookieParams = session_get_cookie_params();
return $cookieParams['lifetime'] > 0;
}
}
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