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59 lines
2.0 KiB
59 lines
2.0 KiB
/*
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This file is part of Libresonic.
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Libresonic is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Libresonic is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Libresonic. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2016 (C) Libresonic Authors
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Based upon Subsonic, Copyright 2009 (C) Sindre Mehus
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*/
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package org.libresonic.player.filter;
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import javax.servlet.*;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.util.Enumeration;
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/**
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* Configurable filter for setting HTTP response headers. Can be used, for instance, to
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* set cache control directives for certain resources.
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*
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* @author Sindre Mehus
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* @version $Revision: 1.1 $ $Date: 2005/08/14 13:14:47 $
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*/
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public class ResponseHeaderFilter implements Filter {
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private FilterConfig filterConfig;
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public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
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throws IOException, ServletException {
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HttpServletResponse response = (HttpServletResponse) res;
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// Sets the provided HTTP response parameters
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for (Enumeration e = filterConfig.getInitParameterNames(); e.hasMoreElements();) {
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String headerName = (String) e.nextElement();
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response.setHeader(headerName, filterConfig.getInitParameter(headerName));
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}
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// pass the request/response on
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chain.doFilter(req, response);
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}
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public void init(FilterConfig filterConfig) {
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this.filterConfig = filterConfig;
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}
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public void destroy() {
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this.filterConfig = null;
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}
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} |