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/*-
* ============LICENSE_START=======================================================
* ECOMP-PAP-REST
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.policy.pap.xacml.rest.handler;
import java.io.File;
import java.net.URI;
import java.net.URL;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.openecomp.policy.common.logging.eelf.MessageCodes;
import org.openecomp.policy.common.logging.eelf.PolicyLogger;
import org.openecomp.policy.pap.xacml.rest.XACMLPapServlet;
import org.openecomp.policy.rest.XACMLRestProperties;
import org.openecomp.policy.rest.jpa.PolicyVersion;
import org.openecomp.policy.xacml.api.pap.EcompPDPGroup;
import org.openecomp.policy.xacml.std.pap.StdPDPPolicy;
import org.openecomp.policy.xacml.util.XACMLPolicyScanner;
import com.att.research.xacml.util.XACMLProperties;
import oasis.names.tc.xacml._3_0.core.schema.wd_17.PolicySetType;
import oasis.names.tc.xacml._3_0.core.schema.wd_17.PolicyType;
public class PushPolicyHandler {
/*
* Get Active Version.
*/
public void getActiveVersion(HttpServletRequest request, HttpServletResponse response) {
EntityManager em = null;
if(XACMLPapServlet.getEmf()!=null){
em = (EntityManager) XACMLPapServlet.getEmf().createEntityManager();
}
if (em==null){
PolicyLogger.error(MessageCodes.ERROR_DATA_ISSUE + " Error creating entity manager with persistence unit: " + XACMLPapServlet.getPersistenceUnit());
return;
}
String policyScope = request.getParameter("policyScope");
String filePrefix = request.getParameter("filePrefix");
String policyName = request.getParameter("policyName");
String pvName = policyScope + File.separator + filePrefix + policyName;
int activeVersion = 0;
//Get the Active Version to use in the ID
em.getTransaction().begin();
Query query = em.createQuery("Select p from PolicyVersion p where p.policyName=:pname");
query.setParameter("pname", pvName);
@SuppressWarnings("rawtypes")
List result = query.getResultList();
PolicyVersion versionEntity = null;
if (!result.isEmpty()) {
versionEntity = (PolicyVersion) result.get(0);
em.persist(versionEntity);
activeVersion = versionEntity.getActiveVersion();
em.getTransaction().commit();
} else {
PolicyLogger.debug("No PolicyVersion using policyName found");
}
//clean up connection
em.close();
if (String.valueOf(activeVersion)!=null || !String.valueOf(activeVersion).equalsIgnoreCase("")) {
response.setStatus(HttpServletResponse.SC_OK);
response.addHeader("version", String.valueOf(activeVersion));
} else {
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
}
}
/*
* Get Git Path
*/
public void getGitPath(HttpServletRequest request, HttpServletResponse response) {
String policyScope = request.getParameter("policyScope");
String filePrefix = request.getParameter("filePrefix");
String policyName = request.getParameter("policyName");
String activeVersion = request.getParameter("activeVersion");
Path workspacePath = Paths.get(XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_WORKSPACE), "admin");
Path repositoryPath = Paths.get(XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_REPOSITORY));
Path gitPath = Paths.get(workspacePath.toString(), repositoryPath.getFileName().toString());
//getting the fullpath of the gitPath and convert to string
String fullGitPath = gitPath.toAbsolutePath().toString();
String finalGitPath = null;
//creating the parentPath directory for the Admin Console use
if(fullGitPath.contains("\\")){
if(fullGitPath.contains("ECOMP-PAP-REST")){
finalGitPath = fullGitPath.replace("ECOMP-PAP-REST", "ecomp-sdk-app");
}else{
finalGitPath = fullGitPath.replace("ATT-PAP-REST", "ATT-ecomp-sdk-app");
}
}else{
finalGitPath = fullGitPath.replace("pap", "console");
}
finalGitPath += File.separator + policyScope + File.separator + filePrefix + policyName + "." + activeVersion + ".xml";
File file = new File(finalGitPath);
URI uri = file.toURI();
//
// Extract XACML policy information
//
Boolean isValid = false;
String policyId = null;
String description = null;
String version = null;
URL url;
try {
url = uri.toURL();
Object rootElement = XACMLPolicyScanner.readPolicy(url.openStream());
if (rootElement == null ||
(
! (rootElement instanceof PolicySetType) &&
! (rootElement instanceof PolicyType)
) ) {
PolicyLogger.warn("No root policy element in URI: " + uri.toString() + " : " + rootElement);
isValid = false;
} else {
if (rootElement instanceof PolicySetType) {
policyId = ((PolicySetType)rootElement).getPolicySetId();
description = ((PolicySetType)rootElement).getDescription();
isValid = true;
version = ((PolicySetType)rootElement).getVersion();
} else if (rootElement instanceof PolicyType) {
policyId = ((PolicyType)rootElement).getPolicyId();
description = ((PolicyType)rootElement).getDescription();
version = ((PolicyType)rootElement).getVersion();
isValid = true;
} else {
PolicyLogger.error("Unknown root element: " + rootElement.getClass().getCanonicalName());
}
}
} catch (Exception e) {
PolicyLogger.error("Exception Occured While Extracting Policy Information");
}
if (!finalGitPath.equalsIgnoreCase("") || policyId!=null || description!=null || version!=null || isValid!=null) {
response.setStatus(HttpServletResponse.SC_OK);
response.addHeader("gitPath", finalGitPath);
response.addHeader("policyId", policyId);
response.addHeader("description", description);
response.addHeader("version", version);
response.addHeader("isValid", isValid.toString());
}
}
/*
* Get Selected URI path.
*/
public void getSelectedURI(HttpServletRequest request, HttpServletResponse response) {
String gitPath = request.getParameter("gitPath");
File file = new File(gitPath);
PolicyLogger.debug("The fileItem is : " + file.toString());
URI selectedURI = file.toURI();
String uri = selectedURI.toString();
if (!uri.equalsIgnoreCase("")) {
response.setStatus(HttpServletResponse.SC_OK);
response.addHeader("selectedURI", uri);
} else {
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
}
}
public boolean preSafetyCheck(StdPDPPolicy policy, String configHome){
return true;
}
public boolean preSafetyCheck(EcompPDPGroup policy, String configHome){
return true;
}
public static PushPolicyHandler getInstance() {
try {
Class<?> pushPolicyHandler = Class.forName(XACMLProperties.getProperty("pushPolicy.impl.className", PushPolicyHandler.class.getName()));
PushPolicyHandler instance = (PushPolicyHandler) pushPolicyHandler.newInstance();
return instance;
} catch (Exception e) {
PolicyLogger.error(e.getMessage());
}
return null;
}
}
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