/*
* 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.felix.ipojo.util;
import java.security.Permission;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServicePermission;
/**
* Methods checking security permissions.
* @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a>
*/
public class SecurityHelper {
/**
* Gets a bundle context to register the given services.
* This method can be used only if iPOJO is able to
* registers the services (so for ManagedServiceFactory,
* Factory and Architecture)
* @param itfs the service interfaces
* @param comp the component bundle context
* @param ipojo the ipojo bundle context
* @return <code>comp</code> if the bundle has enough permission
* to register the service, <code>ipojo</code> otherwise.
*/
public static BundleContext selectContextToRegisterServices(String[] itfs,
BundleContext comp, BundleContext ipojo) {
if (System.getSecurityManager() != null) {
for (int i = 0; i < itfs.length; i++) {
final Permission perm = new ServicePermission(itfs[i],
ServicePermission.REGISTER);
if (!comp.getBundle().hasPermission(perm)) {
return ipojo;
}
}
}
return comp;
}
/**
* Gets a bundle context to register the given service.
* This method can be used only if iPOJO is able to
* registers the service (so for ManagedServiceFactory,
* Factory and Architecture)
* @param itf the service interface
* @param comp the component bundle context
* @param ipojo the ipojo bundle context
* @return <code>comp</code> if the bundle has enough permission
* to register the service, <code>ipojo</code> otherwise.
*/
public static BundleContext selectContextToRegisterService(String itf,
BundleContext comp, BundleContext ipojo) {
if (System.getSecurityManager() != null) {
final Permission perm = new ServicePermission(itf,
ServicePermission.REGISTER);
if (!comp.getBundle().hasPermission(perm)) {
return ipojo;
}
}
return comp;
}
/**
* Gets a bundle context to get the given service.
* This method can be used only if iPOJO is able to
* get the service (so for ManagedServiceFactory,
* Factory, Architecture and LogService)
* @param itf the service interface
* @param comp the component bundle context
* @param ipojo the ipojo bundle context
* @return <code>comp</code> if the bundle has enough permission
* to get the service, <code>ipojo</code> otherwise.
*/
public static BundleContext selectContextToGetService(String itf,
BundleContext comp, BundleContext ipojo) {
if (System.getSecurityManager() != null) {
final Permission perm = new ServicePermission(itf,
ServicePermission.GET);
if (!comp.getBundle().hasPermission(perm)) {
return ipojo;
}
}
return comp;
}
/**
* Checks if the component bundle context has enough permission
* to get the given service.
* @param itf the service interface
* @param comp the component bundle context
* @return <code>true</code> if the bundle has enough permission
* to get the service, <code>false</code> otherwise.
*/
public static boolean hasPermissionToGetService(String itf,
BundleContext comp) {
if (System.getSecurityManager() != null) {
final Permission perm = new ServicePermission(itf,
ServicePermission.GET);
return comp.getBundle().hasPermission(perm);
}
return true;
}
/**
* Checks if the component bundle context has enough permission
* to get the given services.
* @param itfs the service interfaces
* @param comp the component bundle context
* @return <code>true</code> if the bundle has enough permission
* to get the services, <code>false</code> otherwise.
*/
public static boolean hasPermissionToGetServices(String[] itfs,
BundleContext comp) {
if (System.getSecurityManager() != null) {
for (int i = 0; i < itfs.length; i++) {
final Permission perm = new ServicePermission(itfs[i],
ServicePermission.GET);
if (!comp.getBundle().hasPermission(perm)) {
return false;
}
}
}
return true;
}
/**
* Checks if the component bundle context has enough permission
* to register the given service.
* @param itf the service interface
* @param comp the component bundle context
* @return <code>true</code> if the bundle has enough permission
* to register the service, <code>false</code> otherwise.
*/
public static boolean hasPermissionToRegisterService(String itf,
BundleContext comp) {
if (System.getSecurityManager() != null) {
final Permission perm = new ServicePermission(itf,
ServicePermission.REGISTER);
return comp.getBundle().hasPermission(perm);
}
return true;
}
/**
* Checks if the component bundle context has enough permission
* to register the given services.
* @param itfs the service interfaces
* @param comp the component bundle context
* @return <code>true</code> if the bundle has enough permission
* to register the services, <code>false</code> otherwise.
*/
public static boolean hasPermissionToRegisterServices(String[] itfs,
BundleContext comp) {
if (System.getSecurityManager() != null) {
for (int i = 0; i < itfs.length; i++) {
final Permission perm = new ServicePermission(itfs[i],
ServicePermission.REGISTER);
if (!comp.getBundle().hasPermission(perm)) {
return false;
}
}
}
return true;
}
}