org.mycore.frontend.filter.MCRWebAppBaseFilter Maven / Gradle / Ivy
/*
* This file is part of *** M y C o R e ***
* See http://www.mycore.de/ for details.
*
* MyCoRe is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MyCoRe is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MyCoRe. If not, see .
*/
package org.mycore.frontend.filter;
import java.io.IOException;
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 org.mycore.frontend.MCRFrontendUtil;
public class MCRWebAppBaseFilter implements Filter {
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException,
ServletException {
// check if BASE_URL_ATTRIBUTE is present
// for used proxy header use the first entry of list
if (req.getAttribute(MCRFrontendUtil.BASE_URL_ATTRIBUTE) == null) {
String webappBase = MCRFrontendUtil.getBaseURL(req);
req.setAttribute(MCRFrontendUtil.BASE_URL_ATTRIBUTE, webappBase);
}
chain.doFilter(req, res);
}
public void destroy() {
}
public void init(FilterConfig arg0) throws ServletException {
}
}