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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.service.RetiredService;
import org.onap.aai.util.AAIConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
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 javax.ws.rs.ext.Provider;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
// Can cache this so if the uri was already cached then it won't run the string
// matching each time but only does it for the first time
@Provider
@PreMatching
@Priority(AAIRequestFilterPriority.RETIRED_SERVICE)
public class RetiredInterceptor extends AAIContainerFilter implements ContainerRequestFilter {
private static final Pattern VERSION_PATTERN = Pattern.compile("v\\d+|latest");
private RetiredService retiredService;
private String basePath;
@Autowired
public RetiredInterceptor(RetiredService retiredService, @Value("${schema.uri.base.path}") String basePath){
this.retiredService = retiredService;
this.basePath = basePath;
if(!basePath.endsWith("/")){
this.basePath = basePath + "/";
}
}
@Override
public void filter(ContainerRequestContext containerRequestContext) throws IOException {
String requestURI = containerRequestContext.getUriInfo().getAbsolutePath().getPath();
String version = extractVersionFromPath(requestURI);
List<Pattern> retiredAllVersionList = retiredService.getRetiredAllVersionList();
if(checkIfUriRetired(containerRequestContext, retiredAllVersionList, version, requestURI, "")){
return;
}
List<Pattern> retiredVersionList = retiredService.getRetiredPatterns();
checkIfUriRetired(containerRequestContext, retiredVersionList, version, requestURI);
}
public boolean checkIfUriRetired(ContainerRequestContext containerRequestContext,
List<Pattern> retiredPatterns,
String version,
String requestURI,
String message){
for(Pattern retiredPattern : retiredPatterns){
if(retiredPattern.matcher(requestURI).matches()){
AAIException e;
if(message == null){
e = new AAIException("AAI_3007");
} else {
e = new AAIException("AAI_3015");
}
ArrayList<String> templateVars = new ArrayList<>();
if (templateVars.isEmpty()) {
templateVars.add("PUT");
if(requestURI != null){
requestURI = requestURI.replaceAll(basePath, "");
}
templateVars.add(requestURI);
if(message == null){
templateVars.add(version);
templateVars.add(AAIConfig.get("aai.default.api.version", ""));
}
}
Response response = Response
.status(e.getErrorObject().getHTTPResponseCode())
.entity(
ErrorLogHelper
.getRESTAPIErrorResponse(
containerRequestContext.getAcceptableMediaTypes(), e, templateVars
)
)
.build();
containerRequestContext.abortWith(response);
return true;
}
}
return false;
}
public boolean checkIfUriRetired(ContainerRequestContext containerRequestContext,
List<Pattern> retiredPatterns,
String version,
String requestURI){
return checkIfUriRetired(containerRequestContext, retiredPatterns, version, requestURI, null);
}
protected String extractVersionFromPath(String requestURI) {
Matcher versionMatcher = VERSION_PATTERN.matcher(requestURI);
String version = null;
if(versionMatcher.find()){
version = versionMatcher.group(0);
}
return version;
}
}
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