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/*-
* ============LICENSE_START=======================================================
* ONAP-PDP-REST
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2018 Samsung Electronics Co., Ltd.
* ================================================================================
* 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.pdp.rest.api.services;
import java.io.File;
import java.util.UUID;
import org.onap.policy.api.DeletePolicyParameters;
import org.onap.policy.api.PolicyException;
import org.onap.policy.common.logging.flexlogger.FlexLogger;
import org.onap.policy.common.logging.flexlogger.Logger;
import org.onap.policy.xacml.api.XACMLErrorConstants;
import org.onap.policy.xacml.std.pap.StdPAPPolicy;
import org.onap.policy.xacml.std.pap.StdPAPPolicyParams;
import org.springframework.http.HttpStatus;
public class DeletePolicyService {
private static final Logger LOGGER = FlexLogger.getLogger(DeletePolicyService.class.getName());
private String deleteResult = null;
private HttpStatus status = HttpStatus.BAD_REQUEST;
private DeletePolicyParameters deletePolicyParameters = null;
private String message = null;
private String filePrefix = null;
private String clientScope = null;
private String policyType = null;
private String policyName = null;
private String policyScope = null;
public DeletePolicyService(final DeletePolicyParameters deletePolicyParameters, final String requestID) {
this.deletePolicyParameters = deletePolicyParameters;
if (deletePolicyParameters.getRequestID() == null) {
UUID requestUUID = null;
if (requestID != null && !requestID.isEmpty()) {
try {
requestUUID = UUID.fromString(requestID);
} catch (final IllegalArgumentException e) {
requestUUID = UUID.randomUUID();
LOGGER.info("Generated Random UUID: " + requestUUID.toString(), e);
}
} else {
requestUUID = UUID.randomUUID();
LOGGER.info("Generated Random UUID: " + requestUUID.toString());
}
this.deletePolicyParameters.setRequestID(requestUUID);
}
try {
run();
specialCheck();
} catch (final PolicyException e) {
LOGGER.error("Unable to process delete policy request for : " + this.deletePolicyParameters);
deleteResult = XACMLErrorConstants.ERROR_DATA_ISSUE + e;
status = HttpStatus.BAD_REQUEST;
}
}
private void specialCheck() {
if (deleteResult == null) {
return;
}
if (deleteResult.contains("BAD REQUEST") || deleteResult.contains("PE300") || deleteResult.contains("PE200")
|| deleteResult.contains("not exist") || deleteResult.contains("Invalid policyName")) {
if (deleteResult.contains("groupId")) {
status = HttpStatus.NOT_FOUND;
} else {
status = HttpStatus.BAD_REQUEST;
}
} else if (deleteResult.contains("locked down")) {
status = HttpStatus.ACCEPTED;
} else if (deleteResult.contains("not Authorized")) {
status = HttpStatus.FORBIDDEN;
} else if (deleteResult.contains("JPAUtils") || deleteResult.contains("database")
|| deleteResult.contains("policy file") || deleteResult.contains("unknown")
|| deleteResult.contains("configuration")) {
status = HttpStatus.INTERNAL_SERVER_ERROR;
}
}
private void run() throws PolicyException {
// Check Validation.
if (!getValidation()) {
LOGGER.error(message);
throw new PolicyException(message);
}
// Get Result.
try {
LOGGER.debug("Processing delete request: " + deletePolicyParameters.toString());
status = HttpStatus.OK;
deleteResult = processResult();
} catch (final Exception e) {
LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + e);
status = HttpStatus.BAD_REQUEST;
throw new PolicyException(e);
}
}
private String processResult() throws PolicyException {
String response = null;
String fullPolicyName = null;
String pdpGroup = deletePolicyParameters.getPdpGroup();
// PDP Group Check.
if (pdpGroup == null) {
pdpGroup = "NA";
}
final PAPServices papServices = new PAPServices();
if (!deletePolicyParameters.getPolicyName().contains("xml")) {
final String activeVersion = papServices.getActiveVersion(policyScope, filePrefix, policyName, clientScope,
deletePolicyParameters.getRequestID());
LOGGER.debug("The active version of " + policyScope + File.separator + filePrefix + policyName + " is "
+ activeVersion);
String id = null;
if ("pe100".equalsIgnoreCase(activeVersion)) {
response = XACMLErrorConstants.ERROR_PERMISSIONS
+ "response code of the URL is 403. PEP is not Authorized for making this Request!! "
+ "Contact Administrator for this Scope. ";
LOGGER.error(response);
return response;
} else if ("pe300".equalsIgnoreCase(activeVersion)) {
response = XACMLErrorConstants.ERROR_DATA_ISSUE + "response code of the URL is 404. "
+ "This indicates a problem with getting the version from the PAP or the policy does not exist.";
LOGGER.error(response);
return response;
}
if (!"0".equalsIgnoreCase(activeVersion)) {
id = policyScope + "." + filePrefix + policyName + "." + activeVersion + ".xml";
LOGGER.debug("The policyId is " + id);
} else {
response = XACMLErrorConstants.ERROR_DATA_ISSUE
+ "could not retrieve the activeVersion for this policy. could not retrieve the activeVersion for this policy. "
+ "This indicates the policy does not exist, please verify the policy exists.";
LOGGER.error(response);
return response;
}
fullPolicyName = policyScope + "." + filePrefix + policyName + "." + activeVersion + ".xml";
} else {
fullPolicyName = policyName;
}
if ("PAP".equalsIgnoreCase(deletePolicyParameters.getPolicyComponent())) {
if (deletePolicyParameters.getDeleteCondition() == null
|| deletePolicyParameters.getDeleteCondition().toString().trim().isEmpty()) {
message = XACMLErrorConstants.ERROR_DATA_ISSUE + "No Delete Condition given.";
LOGGER.error(message);
return message;
}
// for deleting policies from the API
final StdPAPPolicy deletePapPolicy =
new StdPAPPolicy(StdPAPPolicyParams.builder()
.policyName(fullPolicyName)
.deleteCondition(deletePolicyParameters.getDeleteCondition().toString())
.build());
// send JSON object to PAP
response = (String) papServices.callPAP(deletePapPolicy,
new String[] {"groupId=" + pdpGroup, "apiflag=deletePapApi", "operation=delete"},
deletePolicyParameters.getRequestID(), clientScope);
} else if ("PDP".equalsIgnoreCase(deletePolicyParameters.getPolicyComponent())) {
if (deletePolicyParameters.getPdpGroup() == null || deletePolicyParameters.getPdpGroup().trim().isEmpty()) {
message = XACMLErrorConstants.ERROR_DATA_ISSUE + "No PDP Group given.";
LOGGER.error(message);
return message;
}
// send JSON object to PAP
response =
(String) papServices.callPAP(
null, new String[] {"policyName=" + fullPolicyName, "groupId=" + pdpGroup,
"apiflag=deletePdpApi", "operation=delete"},
deletePolicyParameters.getRequestID(), clientScope);
} else {
message = XACMLErrorConstants.ERROR_DATA_ISSUE
+ "Policy Component does not exist. Please enter either PAP or PDP to delete the policy from a specified Policy Component.";
LOGGER.error(message);
response = message;
}
return response;
}
private boolean getValidation() {
// While Validating, extract the required values.
if (deletePolicyParameters.getPolicyName() == null || deletePolicyParameters.getPolicyName().trim().isEmpty()) {
message = XACMLErrorConstants.ERROR_DATA_ISSUE + "No Policy Name given.";
return false;
}
if (!deletePolicyParameters.getPolicyName().contains("xml")) {
if (deletePolicyParameters.getPolicyName() != null
&& deletePolicyParameters.getPolicyName().contains(".")) {
policyName = deletePolicyParameters.getPolicyName().substring(
deletePolicyParameters.getPolicyName().lastIndexOf('.') + 1,
deletePolicyParameters.getPolicyName().length());
policyScope = deletePolicyParameters.getPolicyName().substring(0,
deletePolicyParameters.getPolicyName().lastIndexOf('.'));
LOGGER.info("Name is " + policyName + " scope is " + policyScope);
} else {
message = XACMLErrorConstants.ERROR_DATA_ISSUE + "No Policy Scope given.";
return false;
}
} else {
policyName = deletePolicyParameters.getPolicyName();
}
policyType = deletePolicyParameters.getPolicyType();
if (policyType == null || policyType.trim().isEmpty()) {
message = XACMLErrorConstants.ERROR_DATA_ISSUE + "No PolicyType given.";
return false;
}
setClientScope();
if (clientScope == null || clientScope.trim().isEmpty()) {
message = XACMLErrorConstants.ERROR_DATA_ISSUE + deletePolicyParameters.getPolicyType()
+ " is not a valid Policy Type.";
LOGGER.error(message);
return false;
}
LOGGER.debug("clientScope is " + clientScope);
LOGGER.debug("filePrefix is " + filePrefix);
if (deletePolicyParameters.getPolicyComponent() == null) {
message = XACMLErrorConstants.ERROR_DATA_ISSUE + "No Policy Component given.";
return false;
}
return true;
}
private void setClientScope() {
if ("Firewall".equalsIgnoreCase(policyType)) {
clientScope = "ConfigFirewall";
filePrefix = "Config_FW_";
} else if ("Action".equalsIgnoreCase(policyType)) {
clientScope = "Action";
filePrefix = "Action_";
} else if ("Decision".equalsIgnoreCase(policyType)) {
clientScope = "Decision";
filePrefix = "Decision_";
} else if ("Base".equalsIgnoreCase(policyType)) {
clientScope = "Config";
filePrefix = "Config_";
} else if ("ClosedLoop_Fault".equalsIgnoreCase(policyType)) {
clientScope = "ConfigClosedLoop";
filePrefix = "Config_Fault_";
} else if ("ClosedLoop_PM".equalsIgnoreCase(policyType)) {
clientScope = "ConfigClosedLoop";
filePrefix = "Config_PM_";
} else if ("MicroService".equalsIgnoreCase(policyType)) {
clientScope = "ConfigMS";
filePrefix = "Config_MS_";
} else if ("Optimization".equalsIgnoreCase(policyType)) {
clientScope = "ConfigOptimization";
filePrefix = "Config_OOF_";
} else if ("BRMS_RAW".equalsIgnoreCase(policyType)) {
clientScope = "ConfigBrmsRaw";
filePrefix = "Config_BRMS_Raw_";
} else if ("BRMS_PARAM".equalsIgnoreCase(policyType)) {
clientScope = "ConfigBrmsParam";
filePrefix = "Config_BRMS_Param_";
} else {
clientScope = null;
message = XACMLErrorConstants.ERROR_DATA_ISSUE + policyType + " is not a valid Policy Type.";
}
}
public String getResult() {
return deleteResult;
}
public HttpStatus getResponseCode() {
return status;
}
}
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