public void run() {
try {
Subject server = subjectFactory.getSubjectForHost(getHostName(exchange));
// The AcceptSecurityContext takes over responsibility for setting the result.
Subject.doAs(server, new AcceptSecurityContext(result, exchange, challenge));
} catch (GeneralSecurityException e) {
e.printStackTrace();
result.setResult(new AuthenticationResult(null, AuthenticationOutcome.NOT_AUTHENTICATED));
} catch (PrivilegedActionException e) {
e.printStackTrace();
result.setResult(new AuthenticationResult(null, AuthenticationOutcome.NOT_AUTHENTICATED));
}
}
@Override
public IoFuture<AuthenticationResult> authenticate(HttpServerExchange exchange) {
ConcreteIoFuture<AuthenticationResult> result = new ConcreteIoFuture<AuthenticationResult>();
HttpServerConnection connection = exchange.getConnection();
NegotiationContext negContext = connection.getAttachment(NegotiationContext.ATTACHMENT_KEY);
if (negContext != null) {
exchange.putAttachment(NegotiationContext.ATTACHMENT_KEY, negContext);
if (negContext.isEstablished()) {
result.setResult(
new AuthenticationResult(
negContext.getPrincipal(), AuthenticationOutcome.AUTHENTICATED));
}
}
Deque<String> authHeaders = exchange.getRequestHeaders().get(AUTHORIZATION);
if (authHeaders != null) {
for (String current : authHeaders) {
if (current.startsWith(NEGOTIATE_PREFIX)) {
String base64Challenge = current.substring(NEGOTIATE_PREFIX.length());
try {
ByteBuffer challenge = FlexBase64.decode(base64Challenge);
dispatch(exchange, new GSSAPIRunnable(result, exchange, challenge));
// The request has now potentially been dispatched to a different worker thread, the run
// method
// within GSSAPIRunnable is now responsible for ensuring the request continues.
return result;
} catch (IOException e) {
}
// By this point we had a header we should have been able to verify but for some reason
// it was not correctly structured.
result.setResult(new AuthenticationResult(null, AuthenticationOutcome.NOT_AUTHENTICATED));
return result;
}
}
}
// No suitable header was found so authentication was not even attempted.
result.setResult(new AuthenticationResult(null, AuthenticationOutcome.NOT_ATTEMPTED));
return result;
}
public Void run() throws GSSException {
NegotiationContext negContext = exchange.getAttachment(NegotiationContext.ATTACHMENT_KEY);
if (negContext == null) {
negContext = new NegotiationContext();
exchange.putAttachment(NegotiationContext.ATTACHMENT_KEY, negContext);
// Also cache it on the connection for future calls.
exchange.getConnection().putAttachment(NegotiationContext.ATTACHMENT_KEY, negContext);
}
GSSContext gssContext = negContext.getGssContext();
if (gssContext == null) {
GSSManager manager = GSSManager.getInstance();
gssContext = manager.createContext((GSSCredential) null);
negContext.setGssContext(gssContext);
}
byte[] respToken =
gssContext.acceptSecContext(
challenge.array(), challenge.arrayOffset(), challenge.limit());
negContext.setResponseToken(respToken);
if (negContext.isEstablished()) {
result.setResult(
new AuthenticationResult(
negContext.getPrincipal(), AuthenticationOutcome.AUTHENTICATED));
} else {
// This isn't a failure but as the context is not established another round trip with the
// client is needed.
result.setResult(
new AuthenticationResult(
negContext.getPrincipal(), AuthenticationOutcome.NOT_AUTHENTICATED));
}
return null;
}