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| | |
| | | /* |
| | | WebBox - Dein Server. |
| | | Copyright (C) 2017 Ulrich Hilger, http://uhilger.de |
| | | |
| | | This program is free software: you can redistribute it and/or modify |
| | | it under the terms of the GNU Affero General Public License as |
| | | published by the Free Software Foundation, either version 3 of the |
| | | License, or (at your option) any later version. |
| | | |
| | | This program 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 Affero General Public License for more details. |
| | | |
| | | You should have received a copy of the GNU Affero General Public License |
| | | along with this program. If not, see <http://www.gnu.org/licenses/>. |
| | | */ |
| | | package de.uhilger.wbx.web; |
| | | |
| | | import com.github.rjeschke.txtmark.Processor; |
| | | import java.io.IOException; |
| | | import java.io.OutputStream; |
| | | import java.util.logging.Logger; |
| | | 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.HttpServletResponse; |
| | | import org.markdown4j.Markdown4jProcessor; |
| | | |
| | | |
| | | /** |
| | | * Ein Filter zur Verwandlung von Markdown-Text in HTML |
| | | * |
| | | * @author ulrich |
| | | */ |
| | | public class MarkdownFilter implements javax.servlet.Filter { |
| | | |
| | | private static final Logger logger = Logger.getLogger(MarkdownFilter.class.getName()); |
| | | private static final String EXT_MD = ".md"; |
| | | public FilterConfig filterConfig; |
| | | |
| | | @Override |
| | | public void doFilter(final ServletRequest request, |
| | | final ServletResponse response, |
| | | FilterChain chain) |
| | | throws IOException, ServletException { |
| | | response.setCharacterEncoding("UTF-8"); |
| | | HttpServletRequest hr = (HttpServletRequest) request; |
| | | String servletPath = hr.getServletPath(); |
| | | if(servletPath.toLowerCase().endsWith(EXT_MD)) { |
| | | OutputStream out = response.getOutputStream(); |
| | | //out.write(new String("<HR>PRE<HR>").getBytes()); |
| | | GenericResponseWrapper wrapper |
| | | = new GenericResponseWrapper((HttpServletResponse) response); |
| | | wrapper.setCharacterEncoding("UTF-8"); |
| | | //wrapper.setContentLength(100000); |
| | | chain.doFilter(request, wrapper); |
| | | |
| | | String responseContent = new String(wrapper.getData(), "UTF-8"); |
| | | |
| | | String html = new Markdown4jProcessor().process(responseContent); |
| | | //String result = Processor.process(responseContent); |
| | | |
| | | out.write(html.getBytes()); |
| | | //out.write(new String("<HR>POST<HR>").getBytes()); |
| | | out.close(); |
| | | } else { |
| | | chain.doFilter(request, response); |
| | | } |
| | | /* |
| | | logger.info("requestURL: " + hr.getRequestURL().toString()); |
| | | logger.info("ContextPath: " + hr.getContextPath()); |
| | | logger.info("ServletPath: " + hr.getServletPath()); |
| | | logger.info("PathInfo: " + hr.getPathInfo()); |
| | | */ |
| | | } |
| | | |
| | | @Override |
| | | public void init(FilterConfig filterConfig) throws ServletException { |
| | | this.filterConfig = filterConfig; |
| | | } |
| | | |
| | | @Override |
| | | public void destroy() { |
| | | // .. |
| | | } |
| | | |
| | | } |