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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.aaf.auth;
import static org.onap.aai.aaf.auth.ResponseFormatter.errorResponse;
import java.io.IOException;
import java.util.Enumeration;
import java.util.List;
import java.util.Properties;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.onap.aaf.cadi.filter.CadiFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The Class AafRequestFilter provides common auth filter methods
*/
public class AafRequestFilter {
private static final Logger LOGGER = LoggerFactory.getLogger(AafRequestFilter.class);
public static void authenticationFilter(HttpServletRequest request, HttpServletResponse response,
FilterChain filterChain, CadiFilter cadiFilter, Properties props, String userChainPattern)
throws IOException, ServletException {
if (!request.getRequestURI().matches("^.*/util/echo$")) {
List<String> cadiConfiguredIssuers = CertUtil.getCadiCertIssuers(props);
String issuer = CertUtil.getCertIssuer(request);
if (issuer == null || issuer.isEmpty()) {
errorResponse(request, response);
return;
}
issuer = issuer.replaceAll("\\s+", "").toUpperCase();
if (cadiConfiguredIssuers.contains(issuer)) {
LOGGER.debug("authenticationFilter CADI issuer " + issuer);
if (CertUtil.isHaProxy(request)) {
// get the end user/client mechid and use it in the user chain header value
String user = CertUtil.getMechId(request);
LOGGER.debug("authenticationFilter haProxy sent end user/mechid " + user);
if (user == null || user.isEmpty()) {
errorResponse(request, response);
return;
}
AafRequestWrapper reqWrapper = new AafRequestWrapper(request);
String userChainHdr = CertUtil.buildUserChainHeader(user, userChainPattern);
LOGGER.debug("User chain header value: " + userChainHdr);
reqWrapper.putHeader(CertUtil.AAF_USER_CHAIN_HDR, userChainHdr);
cadiFilter.doFilter(reqWrapper, response, filterChain);
} else {
cadiFilter.doFilter(request, response, filterChain);
}
if (response.getStatus() == 401 || response.getStatus() == 403) {
LOGGER.debug("authenticationFilter failed CADI authentication");
errorResponse(request, response);
return;
}
} else {
filterChain.doFilter(request, response);
}
} else {
filterChain.doFilter(request, response);
}
}
public static void authorizationFilter(HttpServletRequest request, HttpServletResponse response,
FilterChain filterChain, String permission, Properties props) throws IOException, ServletException {
if (request.getRequestURI().matches("^.*/util/echo$")) {
filterChain.doFilter(request, response);
}
List<String> cadiConfiguredIssuers = CertUtil.getCadiCertIssuers(props);
String issuer = CertUtil.getCertIssuer(request);
if (issuer == null || issuer.isEmpty()) {
errorResponse(request, response);
return;
}
issuer = issuer.replaceAll("\\s+", "").toUpperCase();
Enumeration hdrs = request.getHeaders(CertUtil.AAF_USER_CHAIN_HDR);
while (hdrs.hasMoreElements()) {
String headerValue = (String) hdrs.nextElement();
LOGGER.debug("authorizationFilter user chain headerValue=" + headerValue);
}
if ((cadiConfiguredIssuers.contains(issuer)) && (!request.isUserInRole(permission))) {
LOGGER.debug(
"authorizationFilter failed CADI authorization issuer=" + issuer + " permission=" + permission);
errorResponse(request, response);
} else {
filterChain.doFilter(request, response);
}
}
}
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