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/*-
* ============LICENSE_START=======================================================
* ONAP-PAP-REST
* ================================================================================
* Copyright (C) 2018-2019 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.onap.policy.pap.xacml.rest;
import com.att.research.xacml.util.XACMLProperties;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Base64;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.JSONObject;
import org.onap.policy.common.logging.flexlogger.FlexLogger;
import org.onap.policy.common.logging.flexlogger.Logger;
import org.onap.policy.pap.xacml.rest.adapters.UpdateObjectData;
import org.onap.policy.pap.xacml.rest.components.Policy;
import org.onap.policy.pap.xacml.rest.util.JsonMessage;
import org.onap.policy.rest.XACMLRestProperties;
import org.onap.policy.rest.dao.CommonClassDao;
import org.onap.policy.rest.jpa.ActionBodyEntity;
import org.onap.policy.rest.jpa.ConfigurationDataEntity;
import org.onap.policy.rest.jpa.PolicyDBDaoEntity;
import org.onap.policy.utils.PeCryptoUtils;
import org.onap.policy.xacml.api.XACMLErrorConstants;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.client.HttpClientErrorException;
import org.springframework.web.client.RestTemplate;
@Controller
public class UpdateOthersPAPS {
private static final Logger policyLogger = FlexLogger.getLogger(UpdateOthersPAPS.class);
private static CommonClassDao commonClassDao;
private static final String contentType = "application/json";
private static String configType =".Config_";
private static String actionType =".Action_";
private static String error ="error";
public static CommonClassDao getCommonClassDao() {
return commonClassDao;
}
public static void setCommonClassDao(CommonClassDao commonClassDao) {
UpdateOthersPAPS.commonClassDao = commonClassDao;
}
@Autowired
private UpdateOthersPAPS(CommonClassDao commonClassDao) {
UpdateOthersPAPS.commonClassDao = commonClassDao;
}
public UpdateOthersPAPS() {
//Empty Constructor
}
@RequestMapping(value="/notifyOtherPAPs", method= RequestMethod.POST)
public void notifyOthersPAPsToUpdateConfigurations(HttpServletRequest request, HttpServletResponse response){
Map<String, Object> model = new HashMap<>();
ObjectMapper mapper = new ObjectMapper();
UpdateObjectData body = new UpdateObjectData();
body.setAction(request.getParameter("action"));
body.setNewPolicyName(request.getParameter("newPolicyName"));
body.setOldPolicyName(request.getParameter("oldPolicyName"));
String currentPap = XACMLRestProperties.getProperty("xacml.rest.pap.url");
List<Object> getPAPUrls = commonClassDao.getData(PolicyDBDaoEntity.class);
if(getPAPUrls != null && !getPAPUrls.isEmpty()){
for(int i = 0; i < getPAPUrls.size(); i++){
PolicyDBDaoEntity papId = (PolicyDBDaoEntity) getPAPUrls.get(i);
String papUrl = papId.getPolicyDBDaoUrl();
if(!papUrl.equals(currentPap)){
String userName = papId.getUsername();
String password = papId.getPassword();
Base64.Encoder encoder = Base64.getEncoder();
String txt;
try {
PeCryptoUtils.initAesKey(XACMLProperties.getProperty(XACMLRestProperties.PROP_AES_KEY));
txt = PeCryptoUtils.decrypt(password);
} catch (Exception e) {
policyLogger.debug(e);
//if we can't decrypt, might as well try it anyway
txt = password;
}
String encoding = encoder.encodeToString((userName + ":" + txt).getBytes(StandardCharsets.UTF_8));
HttpHeaders headers = new HttpHeaders();
headers.set("Authorization", "Basic " + encoding);
headers.set("Content-Type", contentType);
RestTemplate restTemplate = new RestTemplate();
HttpEntity<?> requestEntity = new HttpEntity<>(body, headers);
HttpClientErrorException exception = null;
try{
restTemplate.exchange(papUrl + "onap/updateConfiguration", HttpMethod.POST, requestEntity, String.class);
}catch(Exception e){
policyLogger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while connecting to " + papUrl, e);
exception = new HttpClientErrorException(HttpStatus.INTERNAL_SERVER_ERROR, e.getMessage());
if("409 Conflict".equals(e.getMessage())){
policyLogger.error(e.getMessage());
response.addHeader(error, e.getMessage());
}
}
if(exception != null && exception.getStatusCode()!=null){
String message;
if(exception.getStatusCode().equals(HttpStatus.UNAUTHORIZED)){
message = XACMLErrorConstants.ERROR_PERMISSIONS +":"+exception.getStatusCode()+":" + "ERROR_AUTH_GET_PERM" ;
policyLogger.error(message);
}else if(exception.getStatusCode().equals(HttpStatus.BAD_REQUEST)){
message = XACMLErrorConstants.ERROR_DATA_ISSUE + ":"+exception.getStatusCode()+":" + exception.getResponseBodyAsString();
policyLogger.error(message);
}else if(exception.getStatusCode().equals(HttpStatus.NOT_FOUND)){
message = XACMLErrorConstants.ERROR_PROCESS_FLOW + "Error while connecting to " + papUrl + exception;
policyLogger.error(message);
}else{
message = XACMLErrorConstants.ERROR_PROCESS_FLOW + ":"+exception.getStatusCode()+":" + exception.getResponseBodyAsString();
policyLogger.error(message);
}
model.put(papUrl, message);
}else{
model.put(papUrl, "Success");
}
}
}
JsonMessage msg;
try {
msg = new JsonMessage(mapper.writeValueAsString(model));
JSONObject j = new JSONObject(msg);
response.getWriter().write(j.toString());
} catch (Exception e) {
policyLogger.error("Exception Occured"+e);
}
}
}
@RequestMapping(value="/updateConfiguration", method= RequestMethod.POST)
@ResponseBody
public void updateConfiguration(@RequestBody UpdateObjectData data, HttpServletResponse response){
String action = data.getAction();
String newPolicyName = data.getNewPolicyName();
String oldPolicyName = data.getOldPolicyName();
try{
if("rename".equals(action)){
if(oldPolicyName.contains(configType) || oldPolicyName.contains(actionType)){
File file;
if(oldPolicyName.contains(configType)){
file = new File(Policy.getConfigHome() + File.separator + oldPolicyName);
}else{
file = new File(Policy.getActionHome() + File.separator + oldPolicyName);
}
if(file.exists()){
File renamefile;
if(oldPolicyName.contains(configType)){
renamefile = new File(Policy.getConfigHome() + File.separator + newPolicyName);
}else{
renamefile = new File(Policy.getActionHome() + File.separator + newPolicyName);
}
if(file.renameTo(renamefile)){
policyLogger.info("Policy has been renamed Successfully"+newPolicyName);
response.addHeader("rename", "Success");
}else{
response.addHeader("rename", "Failure");
}
}
}
}else if("delete".equals(action)){
if(oldPolicyName.contains(configType)){
Files.deleteIfExists(Paths.get(Policy.getConfigHome() + File.separator + oldPolicyName));
}else if(oldPolicyName.contains("Action_")){
Files.deleteIfExists(Paths.get(Policy.getActionHome() + File.separator + oldPolicyName));
}
}else if("clonePolicy".equals(action) || "exportPolicy".equals(action)){
if(newPolicyName.contains(configType)){
ConfigurationDataEntity configEntiy = (ConfigurationDataEntity) commonClassDao.getEntityItem(ConfigurationDataEntity.class, "configurationName", newPolicyName);
saveConfigurationData(configEntiy, newPolicyName);
}else if(newPolicyName.contains(actionType)){
ActionBodyEntity actionEntiy = (ActionBodyEntity) commonClassDao.getEntityItem(ActionBodyEntity.class, "actionBodyName", newPolicyName);
saveActionBodyData(actionEntiy, newPolicyName);
}
}
} catch (IOException e) {
policyLogger.error("Exception Occured While updating Configuration"+e);
}
}
private void saveConfigurationData(ConfigurationDataEntity configEntiy, String newPolicyName){
try(FileWriter fw = new FileWriter(Policy.getConfigHome() + File.separator + newPolicyName)){
BufferedWriter bw = new BufferedWriter(fw);
bw.write(configEntiy.getConfigBody());
bw.close();
}catch (IOException e) {
policyLogger.error("Exception Occured While closing the File input stream"+e);
}
}
private void saveActionBodyData(ActionBodyEntity actionEntiy , String newPolicyName){
try(FileWriter fw = new FileWriter(Policy.getActionHome() + File.separator + newPolicyName)){
BufferedWriter bw = new BufferedWriter(fw);
bw.write(actionEntiy.getActionBody());
bw.close();
}catch (IOException e) {
policyLogger.error("Exception Occured While closing the File input stream"+e);
}
}
}
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