87 lines
2.9 KiB
Java
87 lines
2.9 KiB
Java
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.net.URI;
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import java.util.Date;
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import java.util.Enumeration;
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import javax.servlet.Filter;
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import javax.servlet.FilterChain;
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import javax.servlet.FilterConfig;
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import javax.servlet.ServletException;
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import javax.servlet.ServletRequest;
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import javax.servlet.ServletResponse;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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public class ShardulFilter implements Filter {
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public void doFilter(ServletRequest req0, ServletResponse res0, FilterChain chain) throws IOException,
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ServletException {
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HttpServletRequest req = (HttpServletRequest)req0;
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HttpServletResponse res = (HttpServletResponse)res0;
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String ref = req.getHeader("Referer");
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if (ref != null) {
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try {
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URI refUri = new URI(ref);
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String host = refUri.getHost();
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if (host != null && host.toLowerCase().endsWith(".wordpress.com")) {
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logRequest("redirect", req, null);
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res.sendRedirect("http://www.forkalsrud.org/stalker.jpg");
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return;
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}
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} catch (Exception e) {
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logRequest("error", req, e);
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}
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}
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chain.doFilter(req, res);
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}
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private void logRequest(String string, HttpServletRequest req, Exception e) {
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try {
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File logfile = new File(System.getProperty("user.home"), "stalker.log");
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FileWriter fw = new FileWriter(logfile, true);
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fw.write("--------------------\n");
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fw.write("" + new Date() + "\n");
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fw.write("IP: " + req.getRemoteAddr() + " " + req.getRemoteHost() + " " + req.getRequestURL().toString() + "\n");
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Enumeration enm = req.getParameterNames();
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while (enm.hasMoreElements()) {
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String param = (String)enm.nextElement();
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String[] val = req.getParameterValues(param);
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for (String s : val) {
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fw.write("param " + param + ": " + s + "\n");
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}
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}
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fw.write("\n");
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enm = req.getHeaderNames();
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while (enm.hasMoreElements()) {
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String header = (String)enm.nextElement();
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String val = req.getHeader(header);
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fw.write(header + ": " + val + "\n");
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}
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fw.write("\n");
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if (e != null) {
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e.printStackTrace(new PrintWriter(fw, true));
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}
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fw.write("\n");
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fw.flush();
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fw.close();
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} catch (IOException e1) {
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e1.printStackTrace();
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}
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}
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public void init(FilterConfig arg0) throws ServletException {
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// noop
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}
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public void destroy() {
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// noop
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}
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}
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