@Override
public boolean reportIncorrect(Captcha captcha) {
try (ScrapClient http = new ScrapClient()) {
return http.get(apiUrl + "/captcha/" + captcha.getId() + "/report") == 200;
} catch (Exception ex) {
LOG.warn("exception ", ex);
}
return false;
}
@Override
public boolean solve(Captcha cap) {
if (!(cap instanceof CaptchaImage)) {
return false;
}
captchaCount.incrementAndGet();
CaptchaImage captcha = (CaptchaImage) cap;
captcha.setLastSolver(this);
captcha.setStatus(Captcha.Status.CREATED);
String filename = null;
String textMimeType = captcha.getMimes()[0];
String[] mimes = null;
if (textMimeType != null) mimes = textMimeType.split("/");
else textMimeType = "application/octet-stream";
if (mimes != null && mimes.length == 2) {
if (isValidImageExtension(mimes[1])) {
filename = "image." + mimes[1];
}
} else {
filename = "image.png";
}
Map<String, Object> data = getMapWithCredentials();
data.put(
"captchafile",
new ByteArrayBody(captcha.getImage(), ContentType.create(textMimeType), filename));
long started = System.currentTimeMillis();
captcha.setStatus(Captcha.Status.SUBMITTED);
try (ScrapClient http = new ScrapClient()) {
int httpStatus = 0;
int retry = 0;
while (true) {
httpStatus = http.post(apiUrl + "captcha", data, ScrapClient.PostType.MULTIPART);
if (!isRetryableStatus(httpStatus)) {
break;
}
if (++retry > maxRetryOnOverload) {
break;
}
try {
Long sleep = 5000l * retry;
LOG.debug("server is overloaded, sleeping {} ms", sleep);
Thread.sleep(sleep);
} catch (InterruptedException ex) {
break;
}
}
if (httpStatus >= 500) {
captcha.setError(Captcha.Error.SERVICE_OVERLOADED);
return false;
} else if (httpStatus == 403) {
captcha.setError(Captcha.Error.INVALID_CREDENTIALS);
return false;
} else if (httpStatus == 400) {
captcha.setError(Captcha.Error.INVALID_CREDENTIALS);
return false;
} else if (httpStatus != 303) {
captcha.setError(Captcha.Error.NETWORK_ERROR);
return false;
}
String location = http.getResponseHeader("location");
if (location == null || !location.startsWith(apiUrl)) {
LOG.warn("invalid location : {}", location);
captcha.setError(Captcha.Error.NETWORK_ERROR);
return false;
}
String captchaId = extractId(location);
if (captchaId == null) {
captcha.setError(Captcha.Error.NETWORK_ERROR);
return false;
}
captcha.setId(captchaId);
long timeLimit = System.currentTimeMillis() + timeoutMS;
while (System.currentTimeMillis() < timeLimit) {
int status = http.get(location + "?" + random.nextInt(Integer.MAX_VALUE));
if (status == 200) {
Map<String, String> answer = parseAnswer(http.getContentAsString());
if (answer.get("text") != null && !answer.get("text").isEmpty()) {
captcha.setResponse(answer.get("text"));
captcha.setStatus(Captcha.Status.SOLVED);
return true;
}
}
try {
Thread.sleep(POLLING_PAUSE_MS);
} catch (InterruptedException ex) {
break;
}
}
captcha.setError(Captcha.Error.TIMEOUT);
captcha.setStatus(Captcha.Status.ERROR);
} catch (IOException ex) {
LOG.error("io exception", ex);
captcha.setError(EXCEPTION);
} finally {
captcha.setSolveDuration(System.currentTimeMillis() - started);
}
return false;
}