TarpitHandlerTest.java :  » Net » james-3.0.0 » org » apache » james » smtpserver » Java Open Source

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package org.apache.james.smtpserver;

import javax.mail.internet.ParseException;

import org.apache.avalon.framework.container.ContainerUtil;
import org.apache.james.smtpserver.protocol.SMTPSession;
import org.apache.james.smtpserver.protocol.core.filter.fastfail.TarpitHandler;
import org.apache.james.test.mock.avalon.MockLogger;
import org.apache.mailet.MailAddress;

import junit.framework.TestCase;

public class TarpitHandlerTest extends TestCase {

    private SMTPSession session;

    private SMTPSession setupMockedSession(final int rcptCount) {
        session = new BaseFakeSMTPSession() {

            public int getRcptCount() {
                return rcptCount;
            }
            
            public void sleep(long ms) {
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }

        };

        return session;
    }

    public void testTarpit() throws ParseException {
        long tarpitTime = 1000;
        long tarpitTolerance = 100;
        long startTime;
        TarpitHandler handler = new TarpitHandler();

        ContainerUtil.enableLogging(handler, new MockLogger());

        handler.setTarpitRcptCount(2);
        handler.setTarpitSleepTime(tarpitTime);

        // no tarpit used
        startTime = System.currentTimeMillis();
        handler.doRcpt(setupMockedSession(0),null,new MailAddress("test@test"));
        assertTrue("No tarpit",
                (System.currentTimeMillis() - startTime) < tarpitTime - tarpitTolerance);

        // tarpit used
        startTime = System.currentTimeMillis();
        handler.doRcpt(setupMockedSession(3),null,new MailAddress("test@test"));
        assertTrue("tarpit",
                (System.currentTimeMillis() - startTime) >= tarpitTime - tarpitTolerance);
    }
}