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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright (c) 2017-2019 AT&T Intellectual Property. All rights reserved.
* Copyright (c) 2017-2019 European Software Marketing 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.aai.babel.service;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonSyntaxException;
import java.util.Base64;
import java.util.List;
import java.util.UUID;
import javax.inject.Inject;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.PathSegment;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.core.UriInfo;
import org.apache.commons.lang3.time.StopWatch;
import org.onap.aai.auth.AAIAuthException;
import org.onap.aai.auth.AAIMicroServiceAuth;
import org.onap.aai.auth.AAIMicroServiceAuthCore;
import org.onap.aai.babel.csar.CsarConverterException;
import org.onap.aai.babel.csar.CsarToXmlConverter;
import org.onap.aai.babel.csar.vnfcatalog.ToscaToCatalogException;
import org.onap.aai.babel.csar.vnfcatalog.VnfVendorImageExtractor;
import org.onap.aai.babel.logging.ApplicationMsgs;
import org.onap.aai.babel.logging.LogHelper;
import org.onap.aai.babel.logging.LogHelper.MdcParameter;
import org.onap.aai.babel.logging.LogHelper.StatusCode;
import org.onap.aai.babel.request.RequestHeaders;
import org.onap.aai.babel.service.data.BabelArtifact;
import org.onap.aai.babel.service.data.BabelRequest;
import org.onap.aai.babel.util.RequestValidationException;
import org.onap.aai.babel.util.RequestValidator;
import org.springframework.stereotype.Service;
/**
* Generate SDC Artifacts by passing in a CSAR payload, Artifact Name and Artifact version.
*
*/
@Service
public class GenerateArtifactsServiceImpl implements GenerateArtifactsService {
private static final LogHelper applicationLogger = LogHelper.INSTANCE;
private AAIMicroServiceAuth aaiMicroServiceAuth;
/**
* @param authorization
* the auth module
*/
@Inject
public GenerateArtifactsServiceImpl(final AAIMicroServiceAuth authorization) {
this.aaiMicroServiceAuth = authorization;
}
/*
* (non-Javadoc)
*
* @see org.onap.aai.babel.service.GenerateArtifactsService#generateArtifacts(javax.ws.rs.core.UriInfo,
* javax.ws.rs.core.HttpHeaders, javax.servlet.http.HttpServletRequest, java.lang.String)
*/
@Override
public Response generateArtifacts(UriInfo uriInfo, HttpHeaders headers, HttpServletRequest servletRequest,
String requestBody) {
applicationLogger.startAudit(headers, servletRequest);
applicationLogger.info(ApplicationMsgs.BABEL_REQUEST_PAYLOAD,
"Received request: " + headers.getRequestHeaders() + requestBody);
applicationLogger.debug(String.format(
"Received request. UriInfo \"%s\", HttpHeaders \"%s\", ServletRequest \"%s\", Request \"%s\"", uriInfo,
headers, servletRequest, requestBody));
// Additional name/value pairs according to EELF guidelines
applicationLogger.setContextValue("Protocol", "https");
applicationLogger.setContextValue("Method", "POST");
applicationLogger.setContextValue("Path", uriInfo.getPath());
applicationLogger.setContextValue("Query", uriInfo.getPathParameters().toString());
RequestHeaders requestHeaders = new RequestHeaders(headers);
applicationLogger.info(ApplicationMsgs.BABEL_REQUEST_PAYLOAD, requestHeaders.toString());
String requestId = requestHeaders.getCorrelationId();
if (requestId == null) {
requestId = UUID.randomUUID().toString();
applicationLogger.info(ApplicationMsgs.MISSING_REQUEST_ID, requestId);
applicationLogger.setContextValue(MdcParameter.REQUEST_ID, requestId);
}
Response response;
try {
// Get last URI path segment to use for authentication
List<PathSegment> pathSegments = uriInfo.getPathSegments();
String lastPathSegment = pathSegments.isEmpty() ? "" : pathSegments.get(pathSegments.size() - 1).getPath();
boolean authorized = aaiMicroServiceAuth.validateRequest(headers, servletRequest,
AAIMicroServiceAuthCore.HTTP_METHODS.POST, lastPathSegment);
response = authorized ? generateArtifacts(requestBody)
: buildResponse(Status.UNAUTHORIZED, "User not authorized to perform the operation.");
} catch (AAIAuthException e) {
applicationLogger.error(ApplicationMsgs.PROCESS_REQUEST_ERROR, e);
applicationLogger.logAuditError(e);
return buildResponse(Status.INTERNAL_SERVER_ERROR,
"Error while processing request. Please check the Babel service logs for more details.\n");
}
StatusCode statusDescription;
int statusCode = response.getStatus();
if (statusCode / 100 == 2) {
statusDescription = StatusCode.COMPLETE;
} else {
statusDescription = StatusCode.ERROR;
}
applicationLogger.logAudit(statusDescription, Integer.toString(statusCode),
Response.Status.fromStatusCode(statusCode).getReasonPhrase(), response.getEntity().toString());
return response;
}
/**
* Generate XML model artifacts from request body.
*
* @param requestBody
* the request body in JSON format
* @return response object containing the generated XML models
*/
protected Response generateArtifacts(String requestBody) {
StopWatch stopwatch = new StopWatch();
stopwatch.start();
Response response;
try {
Gson gson = new GsonBuilder().disableHtmlEscaping().create();
BabelRequest babelRequest = gson.fromJson(requestBody, BabelRequest.class);
new RequestValidator().validateRequest(babelRequest);
byte[] csarFile = Base64.getDecoder().decode(babelRequest.getCsar());
List<BabelArtifact> babelArtifacts = new CsarToXmlConverter().generateXmlFromCsar(csarFile,
babelRequest.getArtifactName(), babelRequest.getArtifactVersion());
BabelArtifact vendorImageConfiguration = new VnfVendorImageExtractor().extract(csarFile);
if (vendorImageConfiguration != null) {
babelArtifacts.add(vendorImageConfiguration);
}
response = buildResponse(Status.OK, gson.toJson(babelArtifacts));
} catch (JsonSyntaxException e) {
response = processError(ApplicationMsgs.INVALID_REQUEST_JSON, Status.BAD_REQUEST, e, "Malformed request.");
} catch (CsarConverterException e) {
response = processError(ApplicationMsgs.INVALID_CSAR_FILE, Status.INTERNAL_SERVER_ERROR, e,
"Error converting CSAR artifact to XML model.");
} catch (ToscaToCatalogException e) {
response = processError(ApplicationMsgs.PROCESSING_VNF_CATALOG_ERROR, Status.INTERNAL_SERVER_ERROR, e,
"Error converting CSAR artifact to VNF catalog.");
} catch (RequestValidationException e) {
response = processError(ApplicationMsgs.PROCESS_REQUEST_ERROR, Status.BAD_REQUEST, //
e, e.getLocalizedMessage());
} finally {
applicationLogger.logMetrics(stopwatch, LogHelper.getCallerMethodName(0));
}
return response;
}
private Response processError(ApplicationMsgs applicationMsgs, Status responseStatus, Exception e, String message) {
applicationLogger.error(applicationMsgs, e);
return buildResponse(responseStatus, message);
}
/**
* Helper method to create a REST response object.
*
* @param status
* response status code
* @param entity
* response payload
* @return
*/
private Response buildResponse(Status status, String entity) {
return Response.status(status).entity(entity).type(MediaType.TEXT_PLAIN).build();
}
}
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