import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.IOException;
import java.net.Socket;

/**
Use a socket to communicate with a web server.
Source: Big Java p. 861
*/
public class WebGet
{
	public static void main(String[] args)
		throws IOException
	{
		//get command lnie arguments
		if (args.length != 2)
		{
			System.out.println("usage: java WebGet host resource");
			System.exit(0);
		}
		String host = args[0];
		String resource = args[1];
		
		// open socket
		final int HTTP_PORT = 80;
		Socket s = new Socket(host, HTTP_PORT);
		
		// get streams
		InputStream in = s.getInputStream();
		OutputStream out = s.getOutputStream();

		// turn streams into readers and writers
		BufferedReader reader = new BufferedReader(new InputStreamReader(in));
		PrintWriter writer = new PrintWriter(out);
		
		// send command
		String command = "GET /" + resource + " HTTP/1.0\n\n";
		writer.print(command);
		writer.flush();
		
		// read server response
		String input;
		while ((input = reader.readLine()) != null)
			System.out.println(input);
			
		// close socket
		s.close();
	}
}