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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 org.onap.aai.exceptions.AAIException;
import org.onap.aai.interceptors.AAIContainerFilter;
import org.onap.aai.logging.ErrorLogHelper;
import org.onap.aai.setup.SchemaVersion;
import org.onap.aai.setup.SchemaVersions;
import org.springframework.beans.factory.annotation.Autowired;
import javax.annotation.Priority;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.PreMatching;
import javax.ws.rs.core.Response;
import java.util.ArrayList;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
@PreMatching
@Priority(AAIRequestFilterPriority.VERSION)
public class VersionInterceptor extends AAIContainerFilter implements ContainerRequestFilter {
public static final Pattern EXTRACT_VERSION_PATTERN = Pattern.compile("^(v[1-9][0-9]*).*$");
private final Set<String> allowedVersions;
private final SchemaVersions schemaVersions;
@Autowired
public VersionInterceptor(SchemaVersions schemaVersions){
this.schemaVersions = schemaVersions;
allowedVersions = schemaVersions.getVersions()
.stream()
.map(SchemaVersion::toString)
.collect(Collectors.toSet());
}
@Override
public void filter(ContainerRequestContext requestContext) {
String uri = requestContext.getUriInfo().getPath();
if (uri.startsWith("search") || uri.startsWith("util/echo") || uri.startsWith("tools") || uri.endsWith("audit-sql-db")) {
return;
}
Matcher matcher = EXTRACT_VERSION_PATTERN.matcher(uri);
String version = null;
if(matcher.matches()){
version = matcher.group(1);
} else {
requestContext.abortWith(createInvalidVersionResponse("AAI_3017", requestContext, version));
return;
}
if(!allowedVersions.contains(version)){
requestContext.abortWith(createInvalidVersionResponse("AAI_3016", requestContext, version));
}
}
private Response createInvalidVersionResponse(String errorCode, ContainerRequestContext context, String version) {
AAIException e = new AAIException(errorCode);
ArrayList<String> templateVars = new ArrayList<>();
if (templateVars.isEmpty()) {
templateVars.add(context.getMethod());
templateVars.add(context.getUriInfo().getPath());
templateVars.add(version);
}
String entity = ErrorLogHelper.getRESTAPIErrorResponse(context.getAcceptableMediaTypes(), e, templateVars);
return Response
.status(e.getErrorObject().getHTTPResponseCode())
.entity(entity)
.build();
}
}
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