Simple Http Server
/* $Id: SimpleHttpServer.java 124 2010-09-23 16:25:36Z altdotua@gmail.com $ */
//package djudge.utils;
import java.net.ServerSocket;
import java.net.Socket;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.InputStreamReader;
import java.io.BufferedReader;
interface SimpleHttpServerDataProvider
{
public String getHtmlPage(String query);
}
public class SimpleHttpServer
{
final SimpleHttpServerDataProvider dataProvider;
public SimpleHttpServer(SimpleHttpServerDataProvider dataProvider, int port)
{
class SocketProcessor implements Runnable
{
private Socket s;
private InputStream is;
private OutputStream os;
private SimpleHttpServerDataProvider dataProvider;
private SocketProcessor(Socket s, SimpleHttpServerDataProvider prov) throws Throwable
{
this.dataProvider = prov;
this.s = s;
this.is = s.getInputStream();
this.os = s.getOutputStream();
}
public void run()
{
try
{
readInputHeaders();
writeResponse("");
} catch (Throwable t)
{
/*do nothing*/
} finally
{
try
{
s.close();
} catch (Throwable t)
{
/*do nothing*/
}
}
}
private void writeResponse(String s) throws Throwable
{
String response = "HTTP/1.1 200 OK\r\n"
+ "Server: DJudge.http\r\n"
+ "Content-Type: text/html\r\n" + "Content-Length: "
+ s.length() + "\r\n" + "Connection: close\r\n\r\n";
String result = response + dataProvider.getHtmlPage("");
os.write(result.getBytes());
os.flush();
}
private void readInputHeaders() throws Throwable
{
BufferedReader br = new BufferedReader(new InputStreamReader(is));
while (true)
{
String s = br.readLine();
if (s == null || s.trim().length() == 0)
{
break;
}
}
}
}
this.dataProvider = dataProvider;
try
{
ServerSocket ss = new ServerSocket(port);
while (true)
{
Socket s = ss.accept();
new Thread(new SocketProcessor(s, dataProvider)).start();
}
}
catch (Exception e)
{
}
catch (Throwable e)
{
}
}
}
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