package jtp.iw;

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

public class GetURLContents {

    public static String exec(String _uri) throws IOException, MalformedURLException {
	return GetURLContents.exec(new URL(_uri));
    }

    public static String exec(URL u) throws IOException
    {
	URLConnection conn = u.openConnection();
	Object resp = conn.getContent();
	String ct = conn.getContentType();
	InputStream body = (InputStream) resp;
	InputStreamReader isr = new InputStreamReader(body);
	LineNumberReader lr = new LineNumberReader(isr);
	StringBuffer ret = new StringBuffer();
	
	while(true) {
	    String line = lr.readLine();
            //System.out.println("Line:" + line);
	    if(line == null) {
		break;
	    }
	    ret.append(line);
	}
	return ret.toString();
    }
    
    /*
      Post the (text) data in request to the given url, and return the body
      of text from the server's reply.

      Inputs: The remote server's URL
              The request to POST to it
              The content type to use
      Outputs: None
      Returns: The body of text from the server, or NULL if the request failed
    */
    public static String Post(String url, String request, String contentType)
    {
        try {
            URL u = new URL(url);
            URLConnection conn = u.openConnection();
            conn.setDoOutput(true);
            byte req[] = request.getBytes();
            conn.setRequestProperty("Content-length",
                                    Integer.toString(req.length));
            conn.setRequestProperty("Content-type", contentType);
            OutputStream os = conn.getOutputStream();
            os.write(req);

            Object resp = conn.getContent();
            String ct = conn.getContentType();
            InputStream body = (InputStream) resp;
            InputStreamReader isr = new InputStreamReader(body);
            LineNumberReader lr = new LineNumberReader(isr);
            StringBuffer ret = new StringBuffer();

            while(true) {
                String line = lr.readLine();
                if(line == null) {
                    break;
                }
                ret.append(line);
                ret.append("\n");
            }
            return ret.toString();
        }
        catch(Exception e) {
            //System.out.println("failed to connect to " + url, e);
            return null;
        }
    }


} /* END of GetURLContents */