What can I do to limit the size of a file that can be uploaded? I know I can limit it client side with SWFUpload, but how can I limit it server side?
How do I protect against someone uploading a 1GB file and eating up my quota?
views:
77answers:
2
A:
Put the code below in serlet where you are recieving data, before calling datastore API.
// Determine the HTTP method
long maxSize = 1024*1024 * 50; //Limit 50 MB
boolean isPostMethod = request.getMethod().equals("POST");
// Verify the content length
int contentLength = request.getContentLength();
if (isPostMethod && (contentLength < 0 || contentLength > maxSize))
//posted data size is not in acceptable range
else {
// Process Data
}
Manjoor
2010-08-06 09:40:14
As the OP said, this is using the App Engine blobstore API, so this doesn't apply.
Nick Johnson
2010-08-06 10:04:50
And from where he'll call blobstore API? from within a servlet? Do you tell me which line of code is not applicable in App Engine?
Manjoor
2010-08-06 10:37:19
if you read the docs on the blobstore (which is different than the datastore) you'll see that none of the lines above are applicable - your servlet doesn't accept the data from the user, the blobstore does. the form the user submits goes directly to the blobstore, not your servlet.http://code.google.com/appengine/docs/java/blobstore/overview.html
Peter Recore
2010-08-06 19:55:48
+2
A:
You can't prohibit people from uploading files that are too large (though this would make a good feature request). What you can do is check the size of the uploaded blob, and immediately delete it if it's too big.
Nick Johnson
2010-08-06 10:05:39
I filed a feature request - http://code.google.com/p/googleappengine/issues/detail?id=3554
Kyle
2010-08-06 22:56:19