import java.io.*;
import java.net.*;
import net.jxta.pipe.*;
import net.jxta.impl.endpoint.*;

public class XWebServer
		implements PipeMsgListener
{
	P2PSocket pps = new P2PSocket();
	BaseMessage bm = new BaseMessage();
	String default_url = "http://127.0.0.1:8080/demo/";

	public XWebServer()
	{
		pps.setInputPipeName("001s");
		pps.setInListener(this);
		pps.bind();
	}

	public void pipeMsgEvent(PipeMsgEvent event)
	{
		String temp = null;
		MessageImpl mi = (MessageImpl)event.getMessage();

		temp = mi.getString(bm.WEB_MESSAGE_TYPE);
		if(temp.equals(bm.WEB_MESSAGE_REQEST))
		{
			doWEBRequest(mi);
			return;
		}
		if(temp.equals(bm.WEB_MESSAGE_REQEST_FIRST))
		{
			doWEBRequestFirst(mi);
			return;
		}
	}

	public void doWebRequest(MessageImpl mi)
	{
		System.out.println("捕獲一個(gè)網(wǎng)站內(nèi)容請(qǐng)求!");
		String url = mi.getString(bm.WEB_URL);
		pps.send(bm.newWEBMessage(url2Stream(url),pps.getOutputPipeName(),pps.getInputPipeName(),bm.WEB_CONTENT,"Temp");
	}

	public void doWebRequestFirst(MessageImpl mi)
	{
		System.out.println("捕獲一個(gè)首次連接請(qǐng)求!");
		MessageElementImpl mei = (MessageElementImpl)mi.getElement(bm.WEB_REQUEST_FIRST);
		String file_name = mi.getString(bm.WEB_URL);
		saveADV(mei.getStream(),file_name);
		pps.setOutputPipeName(file_name);
		pps.setOutListener(pps);
		pps.connect(file_name);
		pps.send(bm.newWEBMessage(url2Stream(url),pps.getOutputPipeName(),pps.getInputPipeName(),bm.WEB_CONTENT,"Temp");
	}

	public void saveAdv(InputStream is,String fname)
	{
		int length;
		byte buf[] = new byte[1024];
		try
		{
			FileOutputStream fos = new FileOutputStream("adv/"+fname);
			BufferedOutputStream bos = new BufferedOutputStream(fos);
			BufferedInputStream bis = new BufferedInputStream(is);
			while((length=bis.read(buf,0,1024))!=-1)
			{
				bos.write(buf,0,length);
				bos.flush();
			}
			bis.close();
			bos.close();
			fos.close();
		}catch(IOException ioe)
		{
			System.out.println("寫入文件錯(cuò)誤："+ioe);
		}
	}

	public InputStream url2Stream(String url)
	{
		try
		{
			String a = default_url;
			if(url!=null)a = a + url;
			System.out.println(a);
			URL link = new URL(a)
			return link.openStream();
		}catch(IOException ioe)
		{
			System.out.println("出錯(cuò)!");
			System.exit(-1);
		}
		return null;
	}

	public static void main(String args[])
	{
		XWebServer xf = new XWebServer();
	}
};