import java.io.*;
import java.util.*;
import java.text.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class GuestBookViewer extends HttpServlet {

    private static String kFilename,tFilename,bFilename,root,root1,j;
	String password="mariko";

    public void init() {
		root=getServletConfig().getServletContext().getRealPath("/");
		root1=root+"WEB-INF/classes/";
		kFilename = root1+"Guest.txt";
		tFilename = root+"TopGuest.txt";
		bFilename = root+"BotGuest.txt";
    }

     public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {
		response.setHeader("Cache-Control","no-cache"); //HTTP 1.1
		response.setHeader("Pragma","no-cache"); //HTTP 1.0
		response.setDateHeader ("Expires", 0); //prevents caching at the proxy server
		if (request.getParameter("command")!=null) {
			if (request.getParameter("command").intern()=="setPassword".intern()) {
				Cookie ck = new Cookie("NomanicPass",request.getParameter("set"));
				ck.setMaxAge (60*60*24*365);
				response.addCookie (ck);
			}
		}
		Cookie c[] = request.getCookies();
		String given="#";
		if( c != null ) {
			for (int i=0; i < c.length; i++ ) {
				if(c[i].getName().equals("NomanicPass")) {
					c[i].setMaxAge (60*60*24*365);
					given = String.valueOf (c[i].getValue());
				}
			}
		}
		String d="";
		boolean delete=false;
		if (given.intern()==password.intern()) delete=true;
		if ((delete)&&(request.getParameter("delete")!=null)) {
			int dv=(int)Integer.parseInt(request.getParameter("delete"));
        	BufferedReader inp = new BufferedReader(new FileReader(kFilename));
			Vector entries=new Vector();
			while (true) {
	      		d=inp.readLine();
	      		if (d==null) break;
				entries.addElement(d);
			}
			entries.removeElementAt(dv*3);
			entries.removeElementAt(dv*3);
			entries.removeElementAt(dv*3);
			try {
				FileOutputStream fos = new FileOutputStream(kFilename);
				PrintStream ps = new PrintStream(fos);
				for (int loop=0;loop<entries.size();loop++)
					ps.println((String)entries.elementAt(loop));
				ps.close();
			}
			catch (Exception ex) {}
		}
        PrintWriter out = response.getWriter();
        try {
        	BufferedReader in = new BufferedReader(new FileReader(tFilename));
        	while (true) {
	      		d=in.readLine();
	      		if (d==null) break;
		        out.println(d);
			}
			in.close();
        	in = new BufferedReader(new FileReader(kFilename));
        	int number=0;
        	while (true) {
	      		d=in.readLine();
	      		if (d==null) break;
                out.println("<TABLE cellSpacing=1 cellPadding=0 width=\"95%\" align=center bgColor=white border=0>"
	                +"<TBODY><TR><TD><div align=\"center\"><br>"
	                +"<font color=\"#666666\" size=\"+3\" face=\"Times New Roman, Times, serif\">");
		        out.println(d);
				out.println("</font><br><br><font color=\"#666666\">");
	      		d=in.readLine();
		        out.println(d);
				out.println("<br>");
	      		d=in.readLine();
		        out.println(d);
				out.println("<br><br>");
				if (delete)
					out.println("<a href=\"GuestBookViewer?delete="+ number++ +"\"><b>DELETE</b></a>"+"<br>");
				out.println("<br></font></div></TD></TR></TBODY></TABLE>");
			}
			out.println("<br><br>");
          	in.close();
        	in = new BufferedReader(new FileReader(bFilename));
        	while (true) {
	      		d=in.readLine();
	      		if (d==null) break;
		        out.println(d);
			}
        }
        catch (Exception e) {
		}
        out.close();
    }

    public void destroy() {
    }
}