import java.io.*; import java.util.*; import javax.servlet.*; import javax.servlet.http.*; public class info extends HttpServlet { ServletConfig config; public void init(ServletConfig tconfig) throws ServletException { super.init(tconfig); config=tconfig;} public String getServletInfo() { return "Info version 1.8: a demonstration and diagnostic servlet from vqSoft";} private void pp(PrintWriter os, String name, String value) { os.print(""+name+": "); if (value==null) os.print("none"); else os.print(value); os.println("
");} private void pp(PrintWriter os, String name, int value) { pp(os, name, String.valueOf(value)); } public void dostuff(HttpServletRequest req, HttpServletResponse rep) throws ServletException, IOException { log("invoked"); rep.setContentType("text/html"); PrintWriter os=rep.getWriter(); os.println(""); os.println("Info servlet"); os.println(""); os.println(""); os.println(""); os.println(""); os.println("

"); os.println(""); os.println("

"); os.println("

Info servlet

"); os.println("

This page was generated by Info version 1.8, a demonstration and diagnostic servlet supplied with vqServer. "); os.println("Info lists its initialisation parameters, information about the http request which invoked it and the http request parameters passed to it.

"); os.println("

Servlet initialisation parameters

"); Enumeration e=config.getInitParameterNames(); if (!e.hasMoreElements()) os.println("None!"); else while (e.hasMoreElements()) { String name=(String) e.nextElement(); String value=config.getInitParameter(name); pp(os, name, value);} os.println("

"); os.println("

Request parameters

"); pp(os, "Request method", req.getMethod()); pp(os, "Request URI", req.getRequestURI()); pp(os, "Request protocol", req.getProtocol()); pp(os, "Servlet path", req.getServletPath()); pp(os, "Path info", req.getPathInfo()); pp(os, "Path translated", req.getPathTranslated()); pp(os, "Query string", req.getQueryString()); pp(os, "Content length", req.getContentLength()); pp(os, "Content type", req.getContentType()); pp(os, "Server name", req.getServerName()); pp(os, "Server port", req.getServerPort()); pp(os, "Remote user", req.getRemoteUser()); pp(os, "Remote address", req.getRemoteAddr()); pp(os, "Remote host", req.getRemoteHost()); pp(os, "Authorization scheme", req.getAuthType()); os.println("

"); os.println("

Request headers

"); e=req.getHeaderNames(); if (!e.hasMoreElements()) os.println("None!"); else while (e.hasMoreElements()) { String name=(String) e.nextElement(); String value=(String) req.getHeader(name); pp(os, name, value);} os.println("

"); os.println("

Servlet parameters

"); e=req.getParameterNames(); if (!e.hasMoreElements()) os.println("None!"); else while (e.hasMoreElements()) { String name=(String) e.nextElement(); String value=req.getParameter(name); StringBuffer tbuffer=new StringBuffer(); pp(os, name, value);} os.println("

"); os.println("

Other servlets (by name)

"); ServletContext tcontext=config.getServletContext(); e=tcontext.getServletNames(); if (!e.hasMoreElements()) os.println("None!"); else while (e.hasMoreElements()) { os.println((String) e.nextElement()+"
");} os.println("

"); os.println("

Other servlets

"); e=tcontext.getServlets(); if (!e.hasMoreElements()) os.println("None!"); else while (e.hasMoreElements()) { Servlet tservlet=(Servlet) e.nextElement(); os.println(tservlet.getServletInfo()+"
");} os.println("

"); os.println("

Cookies

"); Cookie[] cookies =req.getCookies(); for (int i = 0; i < cookies.length; i++) { os.println("" + cookies[i].getName() + " "); os.println("" + cookies[i].getValue() + "
"); } os.println("

"); os.println("

Home page"); os.println("

"); os.println(""); os.flush();} public void doGet(HttpServletRequest req, HttpServletResponse rep) throws ServletException, IOException { dostuff(req, rep);} public void doPost(HttpServletRequest req, HttpServletResponse rep) throws ServletException, IOException { dostuff(req, rep);}}