| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.pulsar.broker.authentication; |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| import java.util.Map; |
| |
| import javax.naming.AuthenticationException; |
| import javax.servlet.http.HttpServletRequest; |
| |
| import org.apache.pulsar.broker.PulsarServerException; |
| import org.apache.pulsar.broker.ServiceConfiguration; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.collect.Maps; |
| |
| /** |
| * Authentication service |
| * |
| */ |
| public class AuthenticationService implements Closeable { |
| private static final Logger LOG = LoggerFactory.getLogger(AuthenticationService.class); |
| |
| private final Map<String, AuthenticationProvider> providers = Maps.newHashMap(); |
| |
| public AuthenticationService(ServiceConfiguration conf) throws PulsarServerException { |
| if (conf.isAuthenticationEnabled()) { |
| try { |
| AuthenticationProvider provider; |
| for (String className : conf.getAuthenticationProviders()) { |
| if (className.isEmpty()) { |
| continue; |
| } |
| provider = (AuthenticationProvider) Class.forName(className).newInstance(); |
| provider.initialize(conf); |
| providers.put(provider.getAuthMethodName(), provider); |
| LOG.info("{} has been loaded.", className); |
| } |
| if (providers.isEmpty()) { |
| LOG.warn("No authentication providers are loaded."); |
| } |
| } catch (Throwable e) { |
| throw new PulsarServerException("Failed to load an authentication provider.", e); |
| } |
| } else { |
| LOG.info("Authentication is disabled"); |
| } |
| } |
| |
| public String authenticate(AuthenticationDataSource authData, String authMethodName) |
| throws AuthenticationException { |
| AuthenticationProvider provider = providers.get(authMethodName); |
| if (provider != null) { |
| return provider.authenticate(authData); |
| } else { |
| throw new AuthenticationException("Unsupported authentication mode: " + authMethodName); |
| } |
| } |
| |
| public String authenticateHttpRequest(HttpServletRequest request) throws AuthenticationException { |
| // Try to validate with any configured provider |
| AuthenticationDataSource authData = new AuthenticationDataHttps(request); |
| for (AuthenticationProvider provider : providers.values()) { |
| try { |
| return provider.authenticate(authData); |
| } catch (AuthenticationException e) { |
| // Ignore the exception because we don't know which authentication method is expected here. |
| } |
| } |
| |
| // No authentication provided |
| if (!providers.isEmpty()) { |
| // If at least a provider was configured, then the authentication needs to be provider |
| throw new AuthenticationException("Authentication required"); |
| } else { |
| // No authentication required |
| return "<none>"; |
| } |
| } |
| |
| @Override |
| public void close() throws IOException { |
| for (AuthenticationProvider provider : providers.values()) { |
| provider.close(); |
| } |
| } |
| } |