/*******************************************************************************
* Copyright (c) 2012-2017 Codenvy, S.A.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.api.local.filters;
import org.eclipse.che.commons.env.EnvironmentContext;
import org.eclipse.che.commons.subject.Subject;
import org.eclipse.che.commons.subject.SubjectImpl;
import javax.inject.Singleton;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.security.Principal;
/**
* Fills environment context with information about current subject.
*
* @author Dmitry Shnurenko
*/
@Singleton
public class EnvironmentInitializationFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public final void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException,
ServletException {
final HttpServletRequest httpRequest = (HttpServletRequest)request;
Subject subject = new SubjectImpl("che", "che", "dummy_token", false);
HttpSession session = httpRequest.getSession();
session.setAttribute("codenvy_user", subject);
final EnvironmentContext environmentContext = EnvironmentContext.getCurrent();
try {
environmentContext.setSubject(subject);
filterChain.doFilter(addUserInRequest(httpRequest, subject), response);
} finally {
EnvironmentContext.reset();
}
}
private HttpServletRequest addUserInRequest(final HttpServletRequest httpRequest, final Subject subject) {
return new HttpServletRequestWrapper(httpRequest) {
@Override
public String getRemoteUser() {
return subject.getUserName();
}
@Override
public Principal getUserPrincipal() {
return () -> subject.getUserName();
}
};
}
@Override
public void destroy() {
}
}