85 lines
3.2 KiB
Java
85 lines
3.2 KiB
Java
///////////////////////////////////////////////////////////////////////////////////////////////
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// Nanodata.
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// Copyright (C) 2023-2023 the original author or authors.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; version 2
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// of the License only.
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//
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// This program 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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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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///////////////////////////////////////////////////////////////////////////////////////////////
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package org.nanoboot.nanodata.web.filters;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Properties;
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import jakarta.servlet.Filter;
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import jakarta.servlet.FilterChain;
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import jakarta.servlet.FilterConfig;
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import jakarta.servlet.ServletContext;
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import jakarta.servlet.ServletException;
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import jakarta.servlet.ServletRequest;
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import jakarta.servlet.ServletResponse;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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import jakarta.servlet.http.HttpSession;
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public class AuthenticationFilter implements Filter {
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private ServletContext context;
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public void init(FilterConfig fConfig) throws ServletException {
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this.context = fConfig.getServletContext();
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this.context.log("AuthenticationFilter started");
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}
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public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
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HttpServletRequest req = (HttpServletRequest) request;
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HttpServletResponse res = (HttpServletResponse) response;
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HttpSession session = req.getSession(false);
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boolean sessionExists = session != null;
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String octConfpath = System.getProperty("nanodata.confpath");
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if (octConfpath == null || octConfpath.isEmpty()) {
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String msg = "csa configuration is broken : " + "nanodata.confpath=" + octConfpath;
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throw new RuntimeException(msg);
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}
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File octagonProperties = new File(octConfpath + "/nanodata.properties");
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try ( InputStream input = new FileInputStream(octagonProperties.getAbsolutePath())) {
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Properties properties = new Properties();
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properties.load(input);
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} catch (IOException ex) {
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ex.printStackTrace();
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throw new RuntimeException("Loading nanodata.properties failed.");
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}
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if (!sessionExists) {
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res.sendRedirect(req.getContextPath() + "/login.html");
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this.context.log("Access is not authorized.");
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} else {
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this.context.log("Access is authorized.");
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chain.doFilter(request, response);
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}
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}
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public void destroy() {
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//close any resources here
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}
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}
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