How to restrict users from loading a bitmap file attachment to a jira issue?

Hi,

We are running on Jira 4.4. I need to know what is the allowable maximum file attachment size in Jira that wont impact the performance.

Also attachments of type jpeg,bitmap and png is allowed ; how to customize and restrict from users uploading file attachment to a jira issue to only jpeg and png?

Thanks

Velavan

1 answer

This widget could not be displayed.

I don't think there's much of a maximum size internally. There are two performance impacts to uploading large files

  • There's a network hit when you upload or download the files
  • If you have set up indexing on attachments (via a plugin - I don't think it's been included in the core yet), then Jira will have to read and index the entire file.

To prevent uploads of the "wrong" file type is more problematic. You'll need to amend the core of Jira so that it checks the type of file by reading it's header and throws back an error to block incorrect types. I've used a number of systems that try to be "clever" and stop people uploading files by checking the file extension alone, which is utterly useless because people simply change it, and it's become an even worse idea as most software now reads the headers anyway. So a bitmap saved as .jpg is opened, read and displayed fine, because the extension is irrelevant.

I'd suggest the most simple solution is to set a relatively low attachment size on your system, and then people trying to upload uncompressed images will simply find them to be too large.

Suggest an answer

Log in or Sign up to answer
Atlassian Summit 2018

Meet the community IRL

Atlassian Summit is an excellent opportunity for in-person support, training, and networking.

Learn more
Community showcase
Posted yesterday in Statuspage

What are your best incident management tips and stories? #HugOps

 👋Community members! Downtime happens. And great incident response takes a village. Teams like Support, Dev, SRE, Ops, IT, and Marketing have to come together to resolve the problem while keep...

70 views 2 3
Join discussion

Atlassian User Groups

Connect with like-minded Atlassian users at free events near you!

Find a group

Connect with like-minded Atlassian users at free events near you!

Find my local user group

Unfortunately there are no AUG chapters near you at the moment.

Start an AUG

You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs

Groups near you