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/**
* ============LICENSE_START====================================================
* org.onap.ccsdk
* ===========================================================================
* Copyright (c) 2023 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.ccsdk.apps.cadi.filter;
import java.io.IOException;
import jakarta.servlet.Servlet;
import jakarta.servlet.ServletConfig;
import jakarta.servlet.ServletException;
import jakarta.servlet.ServletRequest;
import jakarta.servlet.ServletResponse;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
/**
*
* @author Jonathan
*
*/
public class AUTHZServlet<S extends Servlet> implements Servlet {
private String[] roles;
private Servlet delegate;
protected AUTHZServlet(Class<S> cls) {
try {
delegate = cls.newInstance();
} catch (Exception e) {
delegate = null;
}
RolesAllowed rolesAllowed = cls.getAnnotation(RolesAllowed.class);
if (rolesAllowed == null) {
roles = null;
} else {
roles = rolesAllowed.value();
}
}
public void init(ServletConfig sc) throws ServletException {
if (delegate == null) {
throw new ServletException("Invalid Servlet Delegate");
}
delegate.init(sc);
}
public ServletConfig getServletConfig() {
return delegate.getServletConfig();
}
public String getServletInfo() {
return delegate.getServletInfo();
}
public void service(ServletRequest req, ServletResponse resp) throws ServletException, IOException {
if (roles == null) {
delegate.service(req, resp);
return;
}
// Validate
try {
HttpServletRequest hreq = (HttpServletRequest)req;
for (String role : roles) {
if (hreq.isUserInRole(role)) {
delegate.service(req, resp);
return;
}
}
((HttpServletResponse)resp).sendError(403); // forbidden
} catch (ClassCastException e) {
throw new ServletException("JASPIServlet only supports HTTPServletRequest/HttpServletResponse");
}
}
public void destroy() {
delegate.destroy();
}
}
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