| /* |
| * 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.sling.serviceusermapping.impl; |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.apache.sling.serviceusermapping.Mapping; |
| import org.apache.sling.serviceusermapping.ServiceUserMapped; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.framework.ServiceEvent; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.framework.hooks.service.EventListenerHook; |
| import org.osgi.framework.hooks.service.FindHook; |
| import org.osgi.framework.hooks.service.ListenerHook; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Reference; |
| |
| /** |
| * The <code>ServiceUserMappingBundleFilter</code> only allows the bundle for which the service mapping is available to see it. |
| */ |
| @Component(immediate=true, // framework gets/ungets hooks each time |
| service = {EventListenerHook.class, FindHook.class} ) |
| public class ServiceUserMappedBundleFilter implements EventListenerHook, FindHook { |
| |
| @Reference |
| volatile ServiceUserMapperImpl mapper; |
| |
| volatile BundleContext context; |
| |
| @Activate |
| void start(BundleContext context) { |
| this.context = context; |
| } |
| |
| @Override |
| public void event(ServiceEvent serviceEvent, Map map) { |
| |
| ServiceReference serviceReference = serviceEvent.getServiceReference(); |
| if (isServiceMappingReference(serviceReference) && serviceEvent.getType() == ServiceEvent.REGISTERED) { |
| Object serviceName = serviceReference.getProperty(Mapping.SERVICENAME); |
| String subserviceName = getSubServiceName(serviceReference); |
| Iterator<Map.Entry<BundleContext, Collection<ListenerHook.ListenerInfo>>> it = map.entrySet().iterator(); |
| while (it.hasNext()) { |
| Map.Entry<BundleContext, Collection<ListenerHook.ListenerInfo>> entry = it.next(); |
| BundleContext ctx = entry.getKey(); |
| |
| if (!ctx.getBundle().equals(context.getBundle()) && !isValid(ctx.getBundle(), serviceName, subserviceName)) { |
| boolean keep = false; |
| Iterator<ListenerHook.ListenerInfo> iter = entry.getValue().iterator(); |
| while (iter.hasNext()) { |
| if (!matchDefault(ctx.getBundle(), serviceName, subserviceName, iter.next().getFilter(), serviceReference)) { |
| iter.remove(); |
| } |
| else { |
| keep = true; |
| } |
| } |
| if (!keep) { |
| it.remove(); |
| } |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void find(BundleContext bundleContext, String name, String filter, boolean allServices, |
| Collection references) { |
| |
| Iterator<ServiceReference> it = references.iterator(); |
| while (it.hasNext()) { |
| ServiceReference serviceReference = it.next(); |
| if (isServiceMappingReference(serviceReference)) { |
| Object serviceName = serviceReference.getProperty(Mapping.SERVICENAME); |
| String subserviceName = getSubServiceName(serviceReference); |
| if (!isValid(bundleContext.getBundle(), serviceName, subserviceName)) { |
| if (!matchDefault(bundleContext.getBundle(), serviceName, subserviceName, filter, serviceReference)) { |
| it.remove(); |
| } |
| } |
| } |
| } |
| } |
| |
| private boolean isValid(Bundle bundle, Object serviceName, String subserviceName) { |
| String bundleServiceName = mapper.getServiceName(bundle); |
| if (bundleServiceName.equals(serviceName)) { |
| Iterable<String> principals = mapper.getServicePrincipalNamesInternal(bundle, subserviceName); |
| if (principals != null && principals.iterator().hasNext()) { |
| return true; |
| } |
| String user = mapper.getServiceUserIDInternal(bundle, subserviceName); |
| if (user != null && !user.isEmpty()) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| private boolean matchDefault(Bundle bundle, Object serviceName, String subserviceName, String filter, ServiceReference ref) { |
| if ( mapper.getServiceName(context.getBundle()).equals(serviceName) ) { |
| try { |
| if (filter != null && context.createFilter(filter).match(ref)) { |
| for (Mapping mapping : mapper.getActiveMappings()) { |
| if (mapping.getServiceName().equals(mapper.getServiceName(bundle))) { |
| return false; |
| } |
| } |
| Iterable<String> principals = mapper.getServicePrincipalNamesInternal(bundle, subserviceName); |
| if (principals != null && principals.iterator().hasNext()) { |
| return true; |
| } |
| String user = mapper.getServiceUserIDInternal(bundle, subserviceName); |
| if (user != null && !user.isEmpty()) { |
| return true; |
| } |
| } |
| } catch (InvalidSyntaxException e) { |
| // this shouldn't happen as the framework will have validated the filter already |
| throw new RuntimeException(e); |
| } |
| } |
| return false; |
| } |
| |
| private static boolean isServiceMappingReference(ServiceReference serviceReference) { |
| Object objectClass = serviceReference.getProperty(Constants.OBJECTCLASS); |
| for (Object o : (Object[]) objectClass) { |
| if (ServiceUserMappedImpl.SERVICEUSERMAPPED.equals(o)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private static String getSubServiceName(ServiceReference ref) { |
| Object subserviceName = ref.getProperty(ServiceUserMapped.SUBSERVICENAME); |
| if (subserviceName != null && subserviceName instanceof String) { |
| return (String) subserviceName; |
| } |
| return null; |
| } |
| } |