/**
* Handles request in order to authenticate.
*
* @param \AppserverIo\Psr\Servlet\Http\HttpServletRequestInterface $servletRequest The request instance
* @param \AppserverIo\Psr\Servlet\Http\HttpServletResponseInterface $servletResponse The response instance
*
* @return boolean TRUE if the authentication has been successful, else FALSE
*
* @throws \Exception
*/
public function handleRequest(HttpServletRequestInterface $servletRequest, HttpServletResponseInterface $servletResponse)
{
// iterate over all servlets and return the matching one
/**
* @var string $urlPattern
* @var \AppserverIo\Http\Authentication\AuthenticationInterface $authenticationAdapter
*/
foreach ($this->authenticationAdapters as $urlPattern => $authenticationAdapter) {
// we'll match our URI against the URL pattern
if (fnmatch($urlPattern, $servletRequest->getServletPath() . $servletRequest->getPathInfo())) {
// the URI pattern matches, init the adapter and try to authenticate
// check if auth header is not set in coming request headers
if (!$servletRequest->hasHeader(Protocol::HEADER_AUTHORIZATION)) {
// send header for challenge authentication against client
$servletResponse->addHeader(HttpProtocol::HEADER_WWW_AUTHENTICATE, $authenticationAdapter->getAuthenticateHeader());
}
// initialize the adapter with the current request
$authenticationAdapter->init($servletRequest->getHeader(HttpProtocol::HEADER_AUTHORIZATION), $servletRequest->getMethod());
// try to authenticate the request
$authenticated = $authenticationAdapter->authenticate();
if (!$authenticated) {
// send header for challenge authentication against client
$servletResponse->addHeader(HttpProtocol::HEADER_WWW_AUTHENTICATE, $authenticationAdapter->getAuthenticateHeader());
}
return $authenticated;
}
}
// we did not find an adapter for that URI pattern, no authentication required then
return true;
}
/**
* Try to authenticate the user making this request, based on the specified login configuration.
*
* Return TRUE if any specified constraint has been satisfied, or FALSE if we have created a response
* challenge already.
*
* @param \AppserverIo\Psr\Servlet\Http\HttpServletRequestInterface $servletRequest The servlet request instance
* @param \AppserverIo\Psr\Servlet\Http\HttpServletResponseInterface $servletResponse The servlet response instance
*
* @return boolean TRUE if authentication has already been processed on a request before, else FALSE
* @throws \AppserverIo\Http\Authentication\AuthenticationException Is thrown if the request can't be authenticated
*/
public function authenticate(HttpServletRequestInterface $servletRequest, HttpServletResponseInterface $servletResponse)
{
// check if auth header is not set in coming request headers
if ($servletRequest->hasHeader(Protocol::HEADER_AUTHORIZATION) === false) {
// stop processing immediately
$servletRequest->setDispatched(true);
$servletResponse->setStatusCode(401);
$servletResponse->addHeader(Protocol::HEADER_WWW_AUTHENTICATE, $this->getAuthenticateHeader());
return false;
}
// load the raw login credentials
$rawAuthData = $servletRequest->getHeader(Protocol::HEADER_AUTHORIZATION);
// set auth hash got from auth data request header and check if username and password has been passed
if (strstr($credentials = base64_decode(trim(strstr($rawAuthData, " "))), ':') === false) {
// stop processing immediately
$servletRequest->setDispatched(true);
$servletResponse->setStatusCode(401);
$servletResponse->addHeader(Protocol::HEADER_WWW_AUTHENTICATE, $this->getAuthenticateHeader());
return false;
}
// get out username and password
list($username, $password) = explode(':', $credentials);
// query whether or not a username and a password has been passed
if ($password === null || $username === null) {
// stop processing immediately
$servletRequest->setDispatched(true);
$servletResponse->setStatusCode(401);
$servletResponse->addHeader(Protocol::HEADER_WWW_AUTHENTICATE, $this->getAuthenticateHeader());
return false;
}
// set username and password
$this->username = new String($username);
$this->password = new String($password);
// load the realm to authenticate this request for
/** @var AppserverIo\Appserver\ServletEngine\Security\RealmInterface $realm */
$realm = $this->getAuthenticationManager()->getRealm($this->getRealmName());
// authenticate the request and initialize the user principal
$userPrincipal = $realm->authenticate($this->getUsername(), $this->getPassword());
// query whether or not the realm returned an authenticated user principal
if ($userPrincipal == null) {
// stop processing immediately
$servletRequest->setDispatched(true);
$servletResponse->setStatusCode(401);
$servletResponse->setBodyStream('Unauthorized');
$servletResponse->addHeader(Protocol::HEADER_WWW_AUTHENTICATE, $this->getAuthenticateHeader());
return false;
}
// add the user principal and the authentication type to the request
$servletRequest->setUserPrincipal($userPrincipal);
$servletRequest->setAuthType($this->getAuthType());
return true;
}
