/*
* 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.jaas.command;
import java.security.Principal;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.security.auth.login.AppConfigurationEntry;
import org.apache.felix.gogo.commands.Command;
import org.apache.karaf.jaas.boot.principal.GroupPrincipal;
import org.apache.karaf.jaas.boot.principal.RolePrincipal;
import org.apache.karaf.jaas.boot.principal.UserPrincipal;
import org.apache.karaf.jaas.config.JaasRealm;
import org.apache.karaf.jaas.modules.BackingEngine;
@Command(scope = "jaas", name = "users", description = "List the users of the selected JAAS Realm/Login Module")
public class ListUsersCommand extends JaasCommandSupport {
private static final String OUTPUT_FORMAT = "%-20s %-20s %-20s";
@Override
protected Object doExecute() throws Exception {
JaasRealm realm = (JaasRealm) session.get(JAAS_REALM);
AppConfigurationEntry entry = (AppConfigurationEntry) session.get(JAAS_ENTRY);
if (realm == null || entry == null) {
System.err.println("No JAAS Realm / Module has been selected.");
return null;
}
BackingEngine engine = backingEngineService.get(entry);
if (engine == null) {
System.err.println("Can't get the list of users (no backing engine service registered)");
return null;
}
return doExecute(engine);
}
@Override
protected Object doExecute(BackingEngine engine) throws Exception {
List<UserPrincipal> users = engine.listUsers();
System.out.println(String.format(OUTPUT_FORMAT, "User Name", "Group", "Role"));
for (UserPrincipal user : users) {
List<String> reportedRoles = new ArrayList<String>();
String userName = user.getName();
for(GroupPrincipal group : engine.listGroups(user)) {
String groupName = group.getName();
reportedRoles.addAll(displayRole(engine, userName, groupName, group));
}
reportedRoles.addAll(displayRole(engine, userName, "", user, reportedRoles));
if (reportedRoles.size() == 0) {
System.out.println(String.format(OUTPUT_FORMAT, userName, "", ""));
}
}
return null;
}
private List<String> displayRole(BackingEngine engine, String userName, String groupName, Principal principal) {
return displayRole(engine, userName, groupName, principal, Collections.<String>emptyList());
}
private List<String> displayRole(BackingEngine engine, String userName, String groupName, Principal principal, List<String> excludedRoles) {
List<String> names = new ArrayList<String>();
List<RolePrincipal> roles = engine.listRoles(principal);
if (roles != null && roles.size() >= 1) {
for (RolePrincipal role : roles) {
String roleName = role.getName();
if (excludedRoles.contains(roleName))
continue;
names.add(roleName);
System.out.println(String.format(OUTPUT_FORMAT, userName, groupName, roleName));
}
}
return names;
}
}