+ throw new IllegalStateException("A JTA transaction manager must be available.");
+ userDirectory.setTransactionControl(tm);
+// if (tmTracker.getService() instanceof BitronixTransactionManager)
+// EhCacheXAResourceProducer.registerXAResource(cacheName, userDirectory.getXaResource());
+
+ Object realm = userDirectory.getProperties().get(UserAdminConf.realm.name());
+ if (realm != null) {
+ if (Files.exists(nodeKeyTab)) {
+ String servicePrincipal = getKerberosServicePrincipal(realm.toString());
+ if (servicePrincipal != null) {
+ CallbackHandler callbackHandler = new CallbackHandler() {
+ @Override
+ public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
+ for (Callback callback : callbacks)
+ if (callback instanceof NameCallback)
+ ((NameCallback) callback).setName(servicePrincipal);
+
+ }
+ };
+ try {
+ LoginContext nodeLc = new LoginContext(CmsAuth.LOGIN_CONTEXT_NODE, callbackHandler);
+ nodeLc.login();
+ acceptorCredentials = logInAsAcceptor(nodeLc.getSubject(), servicePrincipal);
+ } catch (LoginException e) {
+ throw new IllegalStateException("Cannot log in kernel", e);
+ }
+ }
+ }
+
+ // Register client-side SPNEGO auth scheme
+ AuthPolicy.registerAuthScheme(SpnegoAuthScheme.NAME, SpnegoAuthScheme.class);
+ HttpParams params = DefaultHttpParams.getDefaultParams();
+ ArrayList<String> schemes = new ArrayList<>();
+ schemes.add(SpnegoAuthScheme.NAME);// SPNEGO preferred
+ // schemes.add(AuthPolicy.BASIC);// incompatible with Basic
+ params.setParameter(AuthPolicy.AUTH_SCHEME_PRIORITY, schemes);
+ params.setParameter(CredentialsProvider.PROVIDER, new HttpCredentialProvider());
+ params.setParameter(HttpMethodParams.COOKIE_POLICY, KernelConstants.COOKIE_POLICY_BROWSER_COMPATIBILITY);
+ // params.setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
+ }
+ }
+
+ protected void preDestroy(AbstractUserDirectory userDirectory) {
+// if (tmTracker.getService() instanceof BitronixTransactionManager)
+// EhCacheXAResourceProducer.unregisterXAResource(cacheName, userDirectory.getXaResource());
+
+ Object realm = userDirectory.getProperties().get(UserAdminConf.realm.name());
+ if (realm != null) {
+ if (acceptorCredentials != null) {
+ try {
+ acceptorCredentials.dispose();
+ } catch (GSSException e) {
+ // silent
+ }
+ acceptorCredentials = null;
+ }
+ }
+ }
+
+ private String getKerberosServicePrincipal(String realm) {
+ String hostname;
+ try (DnsBrowser dnsBrowser = new DnsBrowser()) {
+ InetAddress localhost = InetAddress.getLocalHost();
+ hostname = localhost.getHostName();
+ String dnsZone = hostname.substring(hostname.indexOf('.') + 1);
+ String ipfromDns = dnsBrowser.getRecord(hostname, localhost instanceof Inet6Address ? "AAAA" : "A");
+ boolean consistentIp = localhost.getHostAddress().equals(ipfromDns);
+ String kerberosDomain = dnsBrowser.getRecord("_kerberos." + dnsZone, "TXT");
+ if (consistentIp && kerberosDomain != null && kerberosDomain.equals(realm) && Files.exists(nodeKeyTab)) {
+ return KernelConstants.DEFAULT_KERBEROS_SERVICE + "/" + hostname + "@" + kerberosDomain;
+ } else
+ return null;
+ } catch (Exception e) {
+ log.warn("Exception when determining kerberos principal", e);
+ return null;
+ }
+ }
+
+ private GSSCredential logInAsAcceptor(Subject subject, String servicePrincipal) {
+ // GSS
+ Iterator<KerberosPrincipal> krb5It = subject.getPrincipals(KerberosPrincipal.class).iterator();
+ if (!krb5It.hasNext())
+ return null;
+ KerberosPrincipal krb5Principal = null;
+ while (krb5It.hasNext()) {
+ KerberosPrincipal principal = krb5It.next();
+ if (principal.getName().equals(servicePrincipal))
+ krb5Principal = principal;
+ }
+
+ if (krb5Principal == null)
+ return null;
+
+ GSSManager manager = GSSManager.getInstance();
+ try {
+ GSSName gssName = manager.createName(krb5Principal.getName(), null);
+ GSSCredential serverCredentials = Subject.doAs(subject, new PrivilegedExceptionAction<GSSCredential>() {
+
+ @Override
+ public GSSCredential run() throws GSSException {
+ return manager.createCredential(gssName, GSSCredential.INDEFINITE_LIFETIME, KERBEROS_OID,
+ GSSCredential.ACCEPT_ONLY);
+
+ }
+
+ });
+ if (log.isDebugEnabled())
+ log.debug("GSS acceptor configured for " + krb5Principal);
+ return serverCredentials;
+ } catch (Exception gsse) {
+ throw new IllegalStateException("Cannot create acceptor credentials for " + krb5Principal, gsse);
+ }
+ }
+
+ public GSSCredential getAcceptorCredentials() {
+ return acceptorCredentials;
+ }
+
+ public boolean isSingleUser() {
+ return singleUser;