@Override
public void runCaptchaDDosProtection(String id) throws InterruptedException {
final TimeTracker tracker = ChallengeResponseController.getInstance().getTracker(id);
final TrackerJob trackerJob =
new TrackerJob(1) {
@Override
public void waitForNextSlot(long waitFor) throws InterruptedException {
while (waitFor > 0 && !isAbort()) {
synchronized (this) {
if (waitFor <= 0) {
return;
}
if (waitFor > 1000) {
wait(1000);
} else {
this.wait(waitFor);
}
waitFor -= 1000;
}
}
if (isAbort()) {
throw new InterruptedException("PluginForDecrypt is aborting");
}
};
};
tracker.wait(trackerJob);
}
protected <ReturnType> ReturnType handleCaptchaChallenge(Challenge<ReturnType> c)
throws CaptchaException, InterruptedException, DecrypterException {
if (c instanceof ImageCaptchaChallenge) {
final File captchaFile = ((ImageCaptchaChallenge) c).getImageFile();
cleanUpCaptchaFiles.add(captchaFile);
}
if (Thread.currentThread() instanceof SingleDownloadController) {
logger.severe("PluginForDecrypt.getCaptchaCode inside SingleDownloadController!?");
}
c.setTimeout(getCaptchaTimeout());
invalidateLastChallengeResponse();
final BlacklistEntry blackListEntry = CaptchaBlackList.getInstance().matches(c);
if (blackListEntry != null) {
logger.warning("Cancel. Blacklist Matching");
throw new CaptchaException(blackListEntry);
}
try {
ChallengeResponseController.getInstance().handle(c);
} catch (InterruptedException e) {
LogSource.exception(logger, e);
throw e;
} catch (SkipException e) {
LogSource.exception(logger, e);
switch (e.getSkipRequest()) {
case BLOCK_ALL_CAPTCHAS:
CaptchaBlackList.getInstance().add(new BlockAllCrawlerCaptchasEntry(getCrawler()));
break;
case BLOCK_HOSTER:
CaptchaBlackList.getInstance()
.add(new BlockCrawlerCaptchasByHost(getCrawler(), getHost()));
break;
case BLOCK_PACKAGE:
CaptchaBlackList.getInstance()
.add(new BlockCrawlerCaptchasByPackage(getCrawler(), getCurrentLink()));
break;
case REFRESH:
// refresh is not supported from the pluginsystem right now.
return c.getRefreshTrigger();
case STOP_CURRENT_ACTION:
if (Thread.currentThread() instanceof LinkCrawlerThread) {
LinkCollector.getInstance().abort();
// Just to be sure
CaptchaBlackList.getInstance().add(new BlockAllCrawlerCaptchasEntry(getCrawler()));
}
break;
default:
break;
}
throw new CaptchaException(e.getSkipRequest());
}
if (!c.isSolved()) {
throw new DecrypterException(DecrypterException.CAPTCHA);
}
return c.getResult().getValue();
}