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/*
* ============LICENSE_START=======================================================
* ONAP : ccsdk features
* ================================================================================
* Copyright (C) 2020 highstreet technologies GmbH 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.ccsdk.features.sdnr.wt.oauthprovider.filters;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.web.filter.authc.BearerHttpAuthenticationFilter;
import org.apache.shiro.web.util.WebUtils;
import org.opendaylight.aaa.shiro.filters.ODLHttpAuthenticationFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class BearerAndBasicHttpAuthenticationFilter extends BearerHttpAuthenticationFilter{
// defined in lower-case for more efficient string comparison
private static final Logger LOG = LoggerFactory.getLogger(BearerAndBasicHttpAuthenticationFilter.class);
private ODLHttpAuthenticationHelperFilter basicAuthFilter;
public BearerAndBasicHttpAuthenticationFilter() {
this.basicAuthFilter = new ODLHttpAuthenticationHelperFilter();
}
protected static final String OPTIONS_HEADER = "OPTIONS";
@Override
protected AuthenticationToken createToken(ServletRequest request, ServletResponse response) {
final String authHeader = this.getAuthzHeader(request);
if (authHeader != null && authHeader.startsWith("Basic")) {
return this.createBasicAuthToken(request, response);
}
return super.createToken(request, response);
}
@Override
protected String[] getPrincipalsAndCredentials(String scheme, String token) {
LOG.debug("getPrincipalsAndCredentials with scheme {} and token {}", scheme, token);
if (scheme.toLowerCase().equals("basic")) {
return this.basicAuthFilter.getPrincipalsAndCredentials(scheme, token);
}
return super.getPrincipalsAndCredentials(scheme, token);
}
@Override
protected boolean isLoginAttempt(String authzHeader) {
LOG.debug("isLoginAttempt with header {}", authzHeader);
if (this.basicAuthFilter.isLoginAttempt(authzHeader)) {
return true;
}
return super.isLoginAttempt(authzHeader);
}
@Override
protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) {
final HttpServletRequest httpRequest = WebUtils.toHttp(request);
final String httpMethod = httpRequest.getMethod();
if (OPTIONS_HEADER.equalsIgnoreCase(httpMethod)) {
return true;
} else {
if (this.basicAuthFilter.isAccessAllowed(httpRequest, response, mappedValue)) {
LOG.debug("isAccessAllowed succeeded on basicAuth");
return true;
}
}
return super.isAccessAllowed(request, response, mappedValue);
}
protected AuthenticationToken createBasicAuthToken(ServletRequest request, ServletResponse response) {
String authorizationHeader = getAuthzHeader(request);
if (authorizationHeader == null || authorizationHeader.length() == 0) {
// Create an empty authentication token since there is no
// Authorization header.
return createToken("", "", request, response);
}
if (LOG.isDebugEnabled()) {
LOG.debug("Attempting to execute login with headers [" + authorizationHeader + "]");
}
String[] prinCred = getPrincipalsAndCredentials(authorizationHeader, request);
if (prinCred == null || prinCred.length < 2) {
// Create an authentication token with an empty password,
// since one hasn't been provided in the request.
String username = prinCred == null || prinCred.length == 0 ? "" : prinCred[0];
return createToken(username, "", request, response);
}
String username = prinCred[0];
String password = prinCred[1];
return createToken(username, password, request, response);
}
private static class ODLHttpAuthenticationHelperFilter extends ODLHttpAuthenticationFilter{
ODLHttpAuthenticationHelperFilter(){
super();
}
@Override
protected boolean isLoginAttempt(String authzHeader) {
return super.isLoginAttempt(authzHeader);
}
@Override
protected String[] getPrincipalsAndCredentials(String scheme, String encoded) {
return super.getPrincipalsAndCredentials(scheme, encoded);
}
@Override
protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) {
return super.isAccessAllowed(request, response, mappedValue);
}
}
}
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