+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.netconf.ssh.authentication;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import com.google.common.annotations.VisibleForTesting;
+import org.opendaylight.controller.sal.authorization.AuthResultEnum;
+import org.opendaylight.controller.usermanager.IUserManager;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceReference;
+import org.osgi.util.tracker.ServiceTracker;
+import org.osgi.util.tracker.ServiceTrackerCustomizer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class AuthProviderImpl implements AuthProvider {
+ private static final Logger logger = LoggerFactory.getLogger(AuthProviderImpl.class);
+
+ private final String pem;
+ private IUserManager nullableUserManager;
+
+ public AuthProviderImpl(String pemCertificate, final BundleContext bundleContext) {
+ checkNotNull(pemCertificate, "Parameter 'pemCertificate' is null");
+ pem = pemCertificate;
+
+ ServiceTrackerCustomizer<IUserManager, IUserManager> customizer = new ServiceTrackerCustomizer<IUserManager, IUserManager>() {
+ @Override
+ public IUserManager addingService(final ServiceReference<IUserManager> reference) {
+ logger.trace("Service {} added", reference);
+ nullableUserManager = bundleContext.getService(reference);
+ return nullableUserManager;
+ }
+
+ @Override
+ public void modifiedService(final ServiceReference<IUserManager> reference, final IUserManager service) {
+ logger.trace("Replacing modified service {} in netconf SSH.", reference);
+ nullableUserManager = service;
+ }
+
+ @Override
+ public void removedService(final ServiceReference<IUserManager> reference, final IUserManager service) {
+ logger.trace("Removing service {} from netconf SSH. " +
+ "SSH won't authenticate users until IUserManager service will be started.", reference);
+ synchronized (AuthProviderImpl.this) {
+ nullableUserManager = null;
+ }
+ }
+ };
+ ServiceTracker<IUserManager, IUserManager> listenerTracker = new ServiceTracker<>(bundleContext, IUserManager.class, customizer);
+ listenerTracker.open();
+ }
+
+ /**
+ * Authenticate user. This implementation tracks IUserManager and delegates the decision to it. If the service is not
+ * available, IllegalStateException is thrown.
+ */
+ @Override
+ public synchronized boolean authenticated(String username, String password) {
+ if (nullableUserManager == null) {
+ logger.warn("Cannot authenticate user '{}', user manager service is missing", username);
+ throw new IllegalStateException("User manager service is not available");
+ }
+ AuthResultEnum authResult = nullableUserManager.authenticate(username, password);
+ logger.debug("Authentication result for user '{}' : {}", username, authResult);
+ return authResult.equals(AuthResultEnum.AUTH_ACCEPT) || authResult.equals(AuthResultEnum.AUTH_ACCEPT_LOC);
+ }
+
+ @Override
+ public char[] getPEMAsCharArray() {
+ return pem.toCharArray();
+ }
+
+ @VisibleForTesting
+ void setNullableUserManager(IUserManager nullableUserManager) {
+ this.nullableUserManager = nullableUserManager;
+ }
+}
Code Review / controller.git / commitdiff