| /* |
| * 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.karaf.management; |
| |
| import java.io.IOException; |
| import java.security.Principal; |
| |
| import javax.management.remote.JMXAuthenticator; |
| import javax.security.auth.Subject; |
| import javax.security.auth.callback.Callback; |
| import javax.security.auth.callback.CallbackHandler; |
| import javax.security.auth.callback.NameCallback; |
| import javax.security.auth.callback.PasswordCallback; |
| import javax.security.auth.callback.UnsupportedCallbackException; |
| import javax.security.auth.login.FailedLoginException; |
| import javax.security.auth.login.LoginContext; |
| import javax.security.auth.login.LoginException; |
| |
| public class JaasAuthenticator implements JMXAuthenticator { |
| |
| private String realm; |
| private String role; |
| |
| public String getRealm() { |
| return realm; |
| } |
| |
| public void setRealm(String realm) { |
| this.realm = realm; |
| } |
| |
| public String getRole() { |
| return role; |
| } |
| |
| public void setRole(String role) { |
| this.role = role; |
| } |
| |
| public Subject authenticate(Object credentials) throws SecurityException { |
| if (!(credentials instanceof String[])) { |
| throw new IllegalArgumentException("Expected String[2], got " |
| + (credentials != null ? credentials.getClass().getName() : null)); |
| } |
| final String[] params = (String[]) credentials; |
| if (params.length != 2) { |
| throw new IllegalArgumentException("Expected String[2] but length was " + params.length); |
| } |
| try { |
| Subject subject = new Subject(); |
| LoginContext loginContext = new LoginContext(realm, subject, new CallbackHandler() { |
| public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException { |
| for (int i = 0; i < callbacks.length; i++) { |
| if (callbacks[i] instanceof NameCallback) { |
| ((NameCallback) callbacks[i]).setName(params[0]); |
| } else if (callbacks[i] instanceof PasswordCallback) { |
| ((PasswordCallback) callbacks[i]).setPassword((params[1].toCharArray())); |
| } else { |
| throw new UnsupportedCallbackException(callbacks[i]); |
| } |
| } |
| } |
| }); |
| loginContext.login(); |
| if (role != null && role.length() > 0) { |
| String clazz = "org.apache.karaf.jaas.modules.RolePrincipal"; |
| String name = role; |
| int idx = role.indexOf(':'); |
| if (idx > 0) { |
| clazz = role.substring(0, idx); |
| name = role.substring(idx + 1); |
| } |
| boolean found = false; |
| for (Principal p : subject.getPrincipals()) { |
| if (p.getClass().getName().equals(clazz) |
| && p.getName().equals(name)) { |
| found = true; |
| break; |
| } |
| } |
| if (!found) { |
| throw new FailedLoginException("User does not have the required role " + role); |
| } |
| } |
| return subject; |
| } catch (LoginException e) { |
| throw new SecurityException("Authentication failed", e); |
| } |
| } |
| } |