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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* Copyright (C) 2018 Huawei Technologies Co., Ltd. All rights reserved.
* ================================================================================
* Modifications Copyright (c) 2019 Samsung
* ================================================================================
* 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.so.bpmn.common.recipe;
import java.io.IOException;
import java.security.GeneralSecurityException;
import javax.xml.bind.DatatypeConverter;
import org.onap.so.logger.LoggingAnchor;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.onap.so.bpmn.core.UrnPropertiesReader;
import org.onap.so.logger.ErrorCode;
import org.onap.so.logger.MessageEnum;
import org.onap.so.utils.CryptoUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
/**
* Support to call resource recipes from the BPMN workflow. Such as call resource recipe in service workflow. <br>
* <p>
* </p>
*
* @author
* @version ONAP Beijing Release 2018-02-27
*/
@Component
public class BpmnRestClient {
private static Logger logger = LoggerFactory.getLogger(BpmnRestClient.class);
public static final String DEFAULT_BPEL_AUTH = "admin:admin";
public static final String ENCRYPTION_KEY_PROP = "org.onap.so.adapters.network.encryptionKey";
public static final String CONTENT_TYPE_JSON = "application/json";
public static final String CAMUNDA_AUTH = "mso.camundaAuth";
@Autowired
private UrnPropertiesReader urnPropertiesReader;
private static boolean noProperties = true;
public final synchronized boolean getNoPropertiesState() {
return noProperties;
}
/**
* post the recipe Uri <br>
*
* @param recipeUri The request recipe uri
* @param requestId the request id
* @param recipeTimeout The recipe time out
* @param requestAction The request action
* @param serviceInstanceId The service instance id
* @param serviceType The service Type
* @param requestDetails The request Details, these information is from runtime
* @param recipeParamXsd The recipe params, its from recipe design
* @return The response of the recipe.
* @throws ClientProtocolException
* @throws IOException
* @since ONAP Beijing Release
*/
public HttpResponse post(String recipeUri, String requestId, int recipeTimeout, String requestAction,
String serviceInstanceId, String serviceType, String requestDetails, String recipeParamXsd)
throws IOException {
HttpClient client = HttpClientBuilder.create().build();
HttpPost post = new HttpPost(recipeUri);
RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(recipeTimeout)
.setConnectTimeout(recipeTimeout).setConnectionRequestTimeout(recipeTimeout).build();
post.setConfig(requestConfig);
logger.debug("call the bpmn, url: {}", recipeUri);
String jsonReq = wrapResourceRequest(requestId, recipeTimeout, requestAction, serviceInstanceId, serviceType,
requestDetails, recipeParamXsd);
StringEntity input = new StringEntity(jsonReq);
input.setContentType(CONTENT_TYPE_JSON);
String encryptedCredentials;
encryptedCredentials = urnPropertiesReader.getVariable(CAMUNDA_AUTH);
if (encryptedCredentials != null) {
String userCredentials =
getEncryptedPropValue(encryptedCredentials, DEFAULT_BPEL_AUTH, ENCRYPTION_KEY_PROP);
if (userCredentials != null) {
post.addHeader("Authorization",
"Basic " + DatatypeConverter.printBase64Binary(userCredentials.getBytes()));
}
}
post.setEntity(input);
return client.execute(post);
}
/**
* prepare the resource recipe bpmn request. <br>
*
* @param requestId
* @param recipeTimeout
* @param requestAction
* @param serviceInstanceId
* @param serviceType
* @param requestDetails
* @param recipeParams
* @return
* @since ONAP Beijing Release
*/
private String wrapResourceRequest(String requestId, int recipeTimeout, String requestAction,
String serviceInstanceId, String serviceType, String requestDetails, String recipeParams) {
String jsonReq = null;
if (requestId == null) {
requestId = "";
}
if (requestAction == null) {
requestAction = "";
}
if (serviceInstanceId == null) {
serviceInstanceId = "";
}
if (requestDetails == null) {
requestDetails = "";
}
try {
ResourceRecipeRequest recipeRequest = new ResourceRecipeRequest();
BpmnParam resourceInput = new BpmnParam();
BpmnParam host = new BpmnParam();
BpmnParam requestIdInput = new BpmnParam();
BpmnParam requestActionInput = new BpmnParam();
BpmnParam serviceInstanceIdInput = new BpmnParam();
BpmnParam serviceTypeInput = new BpmnParam();
BpmnParam recipeParamsInput = new BpmnParam();
BpmnIntegerParam recipeTimeoutInput = new BpmnIntegerParam();
recipeTimeoutInput.setValue(recipeTimeout);
requestIdInput.setValue(requestId);
requestActionInput.setValue(requestAction);
serviceInstanceIdInput.setValue(serviceInstanceId);
serviceTypeInput.setValue(serviceType);
recipeParamsInput.setValue(recipeParams);
resourceInput.setValue(requestDetails);
recipeRequest.setHost(host);
recipeRequest.setRequestId(requestIdInput);
recipeRequest.setRequestAction(requestActionInput);
recipeRequest.setServiceInstanceId(serviceInstanceIdInput);
recipeRequest.setServiceType(serviceTypeInput);
recipeRequest.setRecipeParams(recipeParamsInput);
recipeRequest.setResourceInput(resourceInput);
recipeRequest.setRecipeTimeout(recipeTimeoutInput);
jsonReq = recipeRequest.toString();
logger.trace("request body is {}", jsonReq);
} catch (Exception e) {
logger.error(LoggingAnchor.FIVE, MessageEnum.APIH_WARP_REQUEST.toString(), "Camunda", "wrapVIDRequest",
ErrorCode.BusinessProcesssError.getValue(), "Error in APIH Warp request", e);
}
return jsonReq;
}
/**
* <br>
*
* @param prop
* @param defaultValue
* @param encryptionKey
* @return
* @since ONAP Beijing Release
*/
protected String getEncryptedPropValue(String prop, String defaultValue, String encryptionKey) {
try {
return CryptoUtils.decrypt(prop, urnPropertiesReader.getVariable(encryptionKey));
} catch (GeneralSecurityException e) {
logger.debug("Security exception", e);
}
return defaultValue;
}
}
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