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/*
* Copyright © 2017-2019 AT&T Intellectual Property. Modifications Copyright © 2018 IBM.
*
* 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.
*
*
* Unless otherwise specified, all documentation contained herein is licensed under the Creative
* Commons License, Attribution 4.0 Intl. (the "License"); you may not use this documentation except
* in compliance with the License. You may obtain a copy of the License at
*
* https://creativecommons.org/licenses/by/4.0/
*
* Unless required by applicable law or agreed to in writing, documentation 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.
*/
package org.onap.optf.cmso.optimizer.filters;
import java.io.IOException;
import java.util.UUID;
import javax.annotation.Priority;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
import javax.ws.rs.ext.Provider;
import org.onap.optf.cmso.optimizer.common.LogMessages;
import org.onap.optf.cmso.optimizer.observations.Mdc;
import org.onap.optf.cmso.optimizer.observations.MessageHeaders;
import org.onap.optf.cmso.optimizer.observations.MessageHeaders.HeadersEnum;
import org.onap.optf.cmso.optimizer.observations.Observation;
import org.springframework.stereotype.Component;
@Priority(1)
@Provider
@Component
public class CmsoContainerFilters implements ContainerRequestFilter, ContainerResponseFilter {
@Context
private HttpServletRequest servletRequest;
@Override
public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext)
throws IOException {
try {
Mdc.auditEnd(requestContext, responseContext);
Observation.report(LogMessages.INCOMING_MESSAGE_RESPONSE, requestContext.getMethod(),
requestContext.getUriInfo().getPath().toString(),
responseContext.getStatusInfo().toString());
MultivaluedMap<String, String> reqHeaders = requestContext.getHeaders();
MultivaluedMap<String, Object> respHeaders = responseContext.getHeaders();
String minorVersion = reqHeaders.getFirst(HeadersEnum.MinorVersion.toString());
respHeaders.add(HeadersEnum.MinorVersion.toString(), minorVersion);
respHeaders.add(HeadersEnum.LatestVersion.toString(), MessageHeaders.getLatestVersion());
respHeaders.add(HeadersEnum.PatchVersion.toString(), MessageHeaders.getPatchVersion());
} catch (Exception e) {
if (e instanceof WebApplicationException) {
Observation.report(LogMessages.EXPECTED_EXCEPTION, e.getMessage());
} else {
Observation.report(LogMessages.UNEXPECTED_EXCEPTION, e.getMessage());
}
}
}
@Override
public void filter(ContainerRequestContext requestContext) throws IOException {
try {
// On the way in
Mdc.auditStart(requestContext, servletRequest);
Observation.report(LogMessages.INCOMING_MESSAGE, requestContext.getMethod(),
requestContext.getUriInfo().getPath().toString());
String majorVersion = requestContext.getUriInfo().getPath();
if (majorVersion != null) {
if (majorVersion.startsWith("dispatch/")) {
return;
}
majorVersion = majorVersion.replaceAll("/.*$", "");
}
if (!MessageHeaders.validateMajorVersion(majorVersion)) {
ResponseBuilder builder = null;
String response = "Unsupported Major version";
builder = Response.status(Response.Status.NOT_FOUND).entity(response);
throw new WebApplicationException(builder.build());
}
MultivaluedMap<String, String> headers = requestContext.getHeaders();
String transactionId = headers.getFirst(HeadersEnum.TransactionID.toString());
if (transactionId == null) {
transactionId = UUID.randomUUID().toString();
headers.add(HeadersEnum.TransactionID.toString(), transactionId);
}
String minorVersion = headers.getFirst(HeadersEnum.MinorVersion.toString());
if (minorVersion == null) {
minorVersion = MessageHeaders.getSupportedmajorversions().get(majorVersion);
headers.add(HeadersEnum.MinorVersion.toString(), minorVersion);
}
if (!MessageHeaders.validateMajorMinorVersion(majorVersion, minorVersion)) {
ResponseBuilder builder = null;
String response = "Unsupported API version";
builder = Response.status(Response.Status.NOT_FOUND).entity(response);
throw new WebApplicationException(builder.build());
}
} catch (Exception e) {
if (e instanceof WebApplicationException) {
Observation.report(LogMessages.EXPECTED_EXCEPTION, e.getMessage());
throw e;
} else {
Observation.report(LogMessages.UNEXPECTED_EXCEPTION, e.getMessage());
}
}
}
}
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