/**
* Handles digest authentication.
*
* @param EventInterface $event An EventInterface instance
*/
public function handle(EventInterface $event)
{
$request = $event->get('request');
if (!$header = $request->server->get('PHP_AUTH_DIGEST')) {
return;
}
$digestAuth = new DigestData($header);
if (null !== $token = $this->securityContext->getToken()) {
if ($token instanceof UsernamePasswordToken && $token->isAuthenticated() && $token->getUsername() === $digestAuth->getUsername()) {
return;
}
}
if (null !== $this->logger) {
$this->logger->debug(sprintf('Digest Authorization header received from user agent: %s', $header));
}
try {
$digestAuth->validateAndDecode($this->authenticationEntryPoint->getKey(), $this->authenticationEntryPoint->getRealmName());
} catch (BadCredentialsException $e) {
$this->fail($event, $request, $e);
return;
}
try {
$user = $this->provider->loadUserByUsername($digestAuth->getUsername());
if (null === $user) {
throw new AuthenticationServiceException('AuthenticationDao returned null, which is an interface contract violation');
}
$serverDigestMd5 = $digestAuth->calculateServerDigest($user->getPassword(), $request->getMethod());
} catch (UsernameNotFoundException $notFound) {
$this->fail($event, $request, new BadCredentialsException(sprintf('Username %s not found.', $digestAuth->getUsername())));
return;
}
if ($serverDigestMd5 !== $digestAuth->getResponse()) {
if (null !== $this->logger) {
$this->logger->debug(sprintf("Expected response: '%s' but received: '%s'; is AuthenticationDao returning clear text passwords?", $serverDigestMd5, $digestAuth->getResponse()));
}
$this->fail($event, $request, new BadCredentialsException('Incorrect response'));
return;
}
if ($digestAuth->isNonceExpired()) {
$this->fail($event, $request, new NonceExpiredException('Nonce has expired/timed out.'));
return;
}
if (null !== $this->logger) {
$this->logger->debug(sprintf('Authentication success for user "%s" with response "%s"', $digestAuth->getUsername(), $digestAuth->getResponse()));
}
$this->securityContext->setToken(new UsernamePasswordToken($user, $user->getPassword(), $this->providerKey));
}
/**
* Handles digest authentication.
*
* @param GetResponseEvent $event A GetResponseEvent instance
*
* @throws AuthenticationServiceException
*/
public function handle(GetResponseEvent $event)
{
$request = $event->getRequest();
if (!($header = $request->server->get('PHP_AUTH_DIGEST'))) {
return;
}
$digestAuth = new DigestData($header);
if (null !== ($token = $this->tokenStorage->getToken())) {
if ($token instanceof UsernamePasswordToken && $token->isAuthenticated() && $token->getUsername() === $digestAuth->getUsername()) {
return;
}
}
if (null !== $this->logger) {
$this->logger->debug('Digest Authorization header received from user agent.', array('header' => $header));
}
try {
$digestAuth->validateAndDecode($this->authenticationEntryPoint->getKey(), $this->authenticationEntryPoint->getRealmName());
} catch (BadCredentialsException $e) {
$this->fail($event, $request, $e);
return;
}
try {
$user = $this->provider->loadUserByUsername($digestAuth->getUsername());
if (null === $user) {
throw new AuthenticationServiceException('Digest User provider returned null, which is an interface contract violation');
}
$serverDigestMd5 = $digestAuth->calculateServerDigest($user->getPassword(), $request->getMethod());
} catch (UsernameNotFoundException $e) {
$this->fail($event, $request, new BadCredentialsException(sprintf('Username %s not found.', $digestAuth->getUsername())));
return;
}
if ($serverDigestMd5 !== $digestAuth->getResponse()) {
if (null !== $this->logger) {
$this->logger->debug('Unexpected response from the DigestAuth received; is the header returning a clear text passwords?', array('expected' => $serverDigestMd5, 'received' => $digestAuth->getResponse()));
}
$this->fail($event, $request, new BadCredentialsException('Incorrect response'));
return;
}
if ($digestAuth->isNonceExpired()) {
$this->fail($event, $request, new NonceExpiredException('Nonce has expired/timed out.'));
return;
}
if (null !== $this->logger) {
$this->logger->info('Digest authentication successful.', array('username' => $digestAuth->getUsername(), 'received' => $digestAuth->getResponse()));
}
$this->tokenStorage->setToken(new UsernamePasswordToken($user, $user->getPassword(), $this->providerKey));
}
public function testIsNonceExpired()
{
$time = microtime(true) + 10;
$key = 'ThisIsAKey';
$nonce = base64_encode($time . ':' . md5($time . ':' . $key));
$digestAuth = new DigestData('username="******", realm="Welcome, robot!", nonce="' . $nonce . '", ' . 'uri="/path/info?p1=5&p2=5", cnonce="MDIwODkz", nc=00000001, qop="auth", ' . 'response="b52938fc9e6d7c01be7702ece9031b42"');
$digestAuth->validateAndDecode($key, 'Welcome, robot!');
$this->assertFalse($digestAuth->isNonceExpired());
}
