/*
* Copyright 2005-2007 WSO2, Inc. (http://wso2.com)
*
* Licensed 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.wso2.carbon.user.mgt.permission;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleEvent;
import org.osgi.framework.BundleListener;
import org.wso2.carbon.registry.core.Collection;
import org.wso2.carbon.registry.core.Registry;
import org.wso2.carbon.user.mgt.UserMgtConstants;
import org.wso2.carbon.user.mgt.internal.UserMgtDSComponent;
import org.wso2.carbon.utils.component.xml.Component;
import org.wso2.carbon.utils.component.xml.ComponentConfigFactory;
import org.wso2.carbon.utils.component.xml.builder.ManagementPermissionsBuilder;
import org.wso2.carbon.utils.component.xml.config.ManagementPermission;
import java.io.InputStream;
import java.net.URL;
/**
* Adds management permissions declared in component.xml of each bundle.
*/
public class ManagementPermissionsAdder implements BundleListener {
private static Log log = LogFactory.getLog(ManagementPermissionsAdder.class);
public void bundleChanged(BundleEvent event) {
Bundle bundle = event.getBundle();
try {
if (event.getType() == BundleEvent.STARTED) {
addUIPermissionFromBundle(bundle);
}
} catch (Exception e) {
log.error("Error occured when processing component xml in bundle " +
bundle.getSymbolicName(), e);
}
}
public void addUIPermissionFromBundle(Bundle bundle) throws Exception {
BundleContext bundleContext = bundle.getBundleContext();
if (bundleContext == null) { // If the bundle got uninstalled, the bundleContext will be null
return;
}
URL url = bundleContext.getBundle().getEntry("META-INF/component.xml");
if (url == null) {
return;
}
InputStream xmlStream = url.openStream();
if (xmlStream == null) {
return;
}
if (log.isDebugEnabled()) {
log.debug("Adding permissions in bundle" +
bundle.getSymbolicName());
}
Component component = ComponentConfigFactory.build(xmlStream);
ManagementPermission[] uiPermissions = null;
if (component != null) {
uiPermissions = (ManagementPermission[]) component
.getComponentConfig(ManagementPermissionsBuilder.LOCALNAME_MGT_PERMISSIONS);
}
if (uiPermissions != null) {
// at the starup we are only adding permission only to tenant 0
Registry registry = UserMgtDSComponent.getRegistryService().getGovernanceSystemRegistry();
for (ManagementPermission uiPermission : uiPermissions) {
if (registry.resourceExists(uiPermission.getResourceId())) {
continue;
}
Collection resource = registry.newCollection();
resource.setProperty(UserMgtConstants.DISPLAY_NAME, uiPermission.getDisplayName());
registry.put(uiPermission.getResourceId(), resource);
}
}
}
}