Examples with GSSContextCredential io.undertow.security.idm.GSSContextCredential used on opensource projects

Example 1 with GSSContextCredential

use of io.undertow.security.idm.GSSContextCredential in project undertow by undertow-io.

the class GSSAPIAuthenticationMechanism method authenticate.

@Override
public AuthenticationMechanismOutcome authenticate(final HttpServerExchange exchange, final SecurityContext securityContext) {
    ServerConnection connection = exchange.getConnection();
    NegotiationContext negContext = connection.getAttachment(NegotiationContext.ATTACHMENT_KEY);
    if (negContext != null) {
        UndertowLogger.SECURITY_LOGGER.debugf("Existing negotiation context found for %s", exchange);
        exchange.putAttachment(NegotiationContext.ATTACHMENT_KEY, negContext);
        if (negContext.isEstablished()) {
            IdentityManager identityManager = getIdentityManager(securityContext);
            final Account account = identityManager.verify(new GSSContextCredential(negContext.getGssContext()));
            if (account != null) {
                securityContext.authenticationComplete(account, name, false);
                UndertowLogger.SECURITY_LOGGER.debugf("Authenticated as user %s with existing GSSAPI negotiation context for %s", account.getPrincipal().getName(), exchange);
                return AuthenticationMechanismOutcome.AUTHENTICATED;
            } else {
                UndertowLogger.SECURITY_LOGGER.debugf("Failed to authenticate with existing GSSAPI negotiation context for %s", exchange);
                return AuthenticationMechanismOutcome.NOT_AUTHENTICATED;
            }
        }
    }
    List<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);
                    return runGSSAPI(exchange, challenge, securityContext);
                } catch (IOException e) {
                }
                // it was not correctly structured.
                return AuthenticationMechanismOutcome.NOT_AUTHENTICATED;
            }
        }
    }
    // No suitable header was found so authentication was not even attempted.
    return AuthenticationMechanismOutcome.NOT_ATTEMPTED;
}