# How to limit file download size? **URL:** \ **Category:** Rails\ **Created:** [July 29, 2007, 10:33pm UTC](https://www.ruby-forum.com/t/how-to-limit-file-download-size/110701 "2007-07-29T22:33:18Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![andreim](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c2a13f/32.png) [@andreim](https://www.ruby-forum.com/u/andreim)\ **Post date:** [July 29, 2007, 10:33pm UTC](https://www.ruby-forum.com/t/how-to-limit-file-download-size/110701/1 "2007-07-29T22:33:18Z")
Hi, I’m writing a ruby on rails application that allows the user to submit a link of a file which my app will then download. Right now my app blindly downloads the file (which is 1-2mb on average) I’m worried about pranksters who would intentionally submit links to 30gb files. Is there a way to set the maximum size of a file that I’m downloading? One possible solution is to parse the content-length field of the file header. But the server need not send this field along with the file. I just want my application to stop downloading when the file gets to a certain size (say 2mb) and alert the user that the file they submitted is too big. Thanks! –Andrei ---
**Author:** ![andreim](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c2a13f/32.png) [@andreim](https://www.ruby-forum.com/u/andreim)\ **Post date:** [July 30, 2007, 3:16pm UTC](https://www.ruby-forum.com/t/how-to-limit-file-download-size/110701/2 "2007-07-30T15:16:45Z")
On Jul 30, 1:32 am, andreim [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > I just want my application to stop downloading when the file gets to a > certain size (say 2mb) and alert the user that the file they submitted > is too big. This is a job of the web server. For apache look up the LimitRequestBody configuration directive - it will allow you to specify the maximum allowed Content-Length for requests to your server. – P