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

import org.apache.commons.mail.*;

/**
 * Check if a sites in the properties file are still up.
 */
public class SiteCheck
{
	public static void main(String[] args) throws Exception
	{
		Properties props=new Properties();
		props.load(new FileInputStream(args[0]));
		
		String mailServer=props.getProperty("mail_server");
		String to=props.getProperty("to");
		String from=props.getProperty("from");
		String subject=props.getProperty("subject");
		
		String message="Website status:\n\n";
		
		for(int i=0; ; i++)
		{
			String host=props.getProperty("site_"+i);
			if(host==null)
				break;
			try
			{
				URL url=new URL("http://"+host);
				URLConnection con=url.openConnection();
				InputStream in=con.getInputStream();
				byte[] buffer=new byte[2048];
				while(in.read(buffer)!=-1);
				in.close();
				message+=" -"+host+": ok\n";
			}
			catch(Exception e)
			{
				message+=" -"+host+": "+e.getMessage()+"\n";
			}
		}
		
		SimpleEmail email=new SimpleEmail();
		email.setHostName(mailServer);
		email.addTo(to);
		email.setFrom(from);
		email.setSubject(subject);
		email.setMsg(message);
		email.send();
	}
}