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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 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.aai.interceptors.pre;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Random;
import java.util.UUID;
import java.security.SecureRandom;
import javax.annotation.Priority;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.PreMatching;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.UriInfo;
import org.glassfish.jersey.message.internal.ReaderWriter;
import org.glassfish.jersey.server.ContainerException;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.interceptors.AAIContainerFilter;
import org.onap.aai.interceptors.AAIHeaderProperties;
import org.onap.aai.util.AAIConfig;
import org.onap.aai.util.AAIConstants;
import org.onap.aai.util.HbaseSaltPrefixer;
import org.springframework.beans.factory.annotation.Autowired;
import com.google.gson.JsonObject;
import org.springframework.util.StringUtils;
@PreMatching
@Priority(AAIRequestFilterPriority.REQUEST_TRANS_LOGGING)
public class RequestTransactionLogging extends AAIContainerFilter implements ContainerRequestFilter {
@Autowired
private HttpServletRequest httpServletRequest;
private static final String DEFAULT_CONTENT_TYPE = MediaType.APPLICATION_JSON;
private static final String DEFAULT_RESPONSE_TYPE = MediaType.APPLICATION_XML;
private static final String CONTENT_TYPE = "Content-Type";
private static final String ACCEPT = "Accept";
private static final String TEXT_PLAIN = "text/plain";
private static final String WILDCARD = "*/*";
private static final String APPLICATION_JSON = "application/json";
@Override
public void filter(ContainerRequestContext requestContext) throws IOException {
String currentTimeStamp = genDate();
String fullId = this.getAAITxIdToHeader(currentTimeStamp);
this.addToRequestContext(requestContext, AAIHeaderProperties.AAI_TX_ID, fullId);
this.addToRequestContext(requestContext, AAIHeaderProperties.AAI_REQUEST, this.getRequest(requestContext, fullId));
this.addToRequestContext(requestContext, AAIHeaderProperties.AAI_REQUEST_TS, currentTimeStamp);
this.addDefaultContentType(requestContext);
}
private void addToRequestContext(ContainerRequestContext requestContext, String name, String aaiTxIdToHeader) {
requestContext.setProperty(name, aaiTxIdToHeader);
}
private void addDefaultContentType(ContainerRequestContext requestContext) {
String contentType = requestContext.getHeaderString(CONTENT_TYPE);
String acceptType = requestContext.getHeaderString(ACCEPT);
if(contentType == null || contentType.contains(TEXT_PLAIN)){
requestContext.getHeaders().putSingle(CONTENT_TYPE, DEFAULT_CONTENT_TYPE);
}
if(WILDCARD.equals(acceptType) || StringUtils.isEmpty(acceptType) || acceptType.contains(TEXT_PLAIN)){
UriInfo uriInfo = requestContext.getUriInfo();
if(uriInfo != null){
MultivaluedMap<String, String> queryParameters = uriInfo.getQueryParameters();
if(queryParameters != null && queryParameters.containsKey("format")){
// Add application/json as the default header if request contains query parameter format
// Since clients are assuming the default response to be application json for when format is specified
requestContext.getHeaders().putSingle(ACCEPT, APPLICATION_JSON);
} else {
requestContext.getHeaders().putSingle(ACCEPT, DEFAULT_RESPONSE_TYPE);
}
} else {
requestContext.getHeaders().putSingle(ACCEPT, DEFAULT_RESPONSE_TYPE);
}
}
}
private String getAAITxIdToHeader(String currentTimeStamp) {
String txId = UUID.randomUUID().toString();
try {
Random rand = new SecureRandom();
int number = rand.nextInt(99999);
txId = HbaseSaltPrefixer.getInstance().prependSalt(AAIConfig.get(AAIConstants.AAI_NODENAME) + "-"
+ currentTimeStamp + "-" + number ); //new Random(System.currentTimeMillis()).nextInt(99999)
} catch (AAIException e) {
}
return txId;
}
private String getRequest(ContainerRequestContext requestContext, String fullId) {
JsonObject request = new JsonObject();
request.addProperty("ID", fullId);
request.addProperty("Http-Method", requestContext.getMethod());
request.addProperty(CONTENT_TYPE, httpServletRequest.getContentType());
request.addProperty("Headers", requestContext.getHeaders().toString());
ByteArrayOutputStream out = new ByteArrayOutputStream();
InputStream in = requestContext.getEntityStream();
try {
if (in.available() > 0) {
ReaderWriter.writeTo(in, out);
byte[] requestEntity = out.toByteArray();
request.addProperty("Payload", new String(requestEntity, "UTF-8"));
requestContext.setEntityStream(new ByteArrayInputStream(requestEntity));
}
} catch (IOException ex) {
throw new ContainerException(ex);
}
return request.toString();
}
}
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