/** This method is called when the {@link SizeLimitExceededException} was thrown. */
protected void reportSizeLimitExceeded(final SizeLimitExceededException e, Validator validator) {
validator.add(
new I18nMessage("upload", "file.limit.exceeded", e.getActualSize(), e.getPermittedSize()));
logger.warn(
"The file size limit was exceeded. Actual {} permitted {}",
e.getActualSize(),
e.getPermittedSize());
}
/**
* This method parses the submit action, puts in session a listener where the progress status is
* updated, and eventually stores the received data in the user session.
*
* <p>returns null in the case of success or a string with the error
*/
@SuppressWarnings("unchecked")
protected String parsePostRequest(HttpServletRequest request, HttpServletResponse response) {
try {
String delay = request.getParameter("delay");
uploadDelay = Integer.parseInt(delay);
} catch (Exception e) {
}
HttpSession session = request.getSession();
logger.debug("UPLOAD-SERVLET (" + session.getId() + ") new upload request received.");
AbstractUploadListener listener = getCurrentListener(request);
if (listener != null) {
if (listener.isFrozen() || listener.isCanceled() || listener.getPercent() >= 100) {
removeCurrentListener(request);
} else {
String error = getMessage("busy");
logger.error("UPLOAD-SERVLET (" + session.getId() + ") " + error);
return error;
}
}
// Create a file upload progress listener, and put it in the user session,
// so the browser can use ajax to query status of the upload process
listener = createNewListener(request);
List<FileItem> uploadedItems;
try {
// Call to a method which the user can override
checkRequest(request);
// Create the factory used for uploading files,
FileItemFactory factory = getFileItemFactory(request.getContentLength());
ServletFileUpload uploader = new ServletFileUpload(factory);
uploader.setSizeMax(maxSize);
uploader.setProgressListener(listener);
// Receive the files
logger.debug("UPLOAD-SERVLET (" + session.getId() + ") parsing HTTP POST request ");
uploadedItems = uploader.parseRequest(request);
logger.debug(
"UPLOAD-SERVLET ("
+ session.getId()
+ ") parsed request, "
+ uploadedItems.size()
+ " items received.");
// Received files are put in session
Vector<FileItem> sessionFiles = (Vector<FileItem>) getSessionFileItems(request);
if (sessionFiles == null) {
sessionFiles = new Vector<FileItem>();
}
String error = "";
session.setAttribute(ATTR_LAST_FILES, uploadedItems);
if (uploadedItems.size() > 0) {
sessionFiles.addAll(uploadedItems);
String msg = "";
for (FileItem i : sessionFiles) {
msg += i.getFieldName() + " => " + i.getName() + "(" + i.getSize() + " bytes),";
}
logger.debug("UPLOAD-SERVLET (" + session.getId() + ") puting items in session: " + msg);
session.setAttribute(ATTR_FILES, sessionFiles);
} else {
logger.error("UPLOAD-SERVLET (" + session.getId() + ") error NO DATA received ");
error += getMessage("no_data");
}
return error.length() > 0 ? error : null;
} catch (SizeLimitExceededException e) {
RuntimeException ex = new UploadSizeLimitException(e.getPermittedSize(), e.getActualSize());
listener.setException(ex);
throw ex;
} catch (UploadSizeLimitException e) {
listener.setException(e);
throw e;
} catch (UploadCanceledException e) {
listener.setException(e);
throw e;
} catch (UploadTimeoutException e) {
listener.setException(e);
throw e;
} catch (Exception e) {
logger.error(
"UPLOAD-SERVLET ("
+ request.getSession().getId()
+ ") Unexpected Exception -> "
+ e.getMessage()
+ "\n"
+ stackTraceToString(e));
e.printStackTrace();
RuntimeException ex = new UploadException(e);
listener.setException(ex);
throw ex;
}
}