Consider adding WEBP as an allowed extension for files uploading

[birdie]

• All major web browsers support it natively (except Internet Explorer 11 which was released ages ago and Safari).
• It allows to make lossless screenshots which on average weigh at 50% of the corresponding PNG.

See the attachment as a proof. The resulting BMPs are 100% bit identical. You can use the free IrfanView image viewer/editor to convert to WEBP.

If you're OK with that, then it makes sense to tell the forum software that webp is an image type.

 

[W1zzard]

Global: 78.64%

webp only works well at this time if you auto-convert server-side, detect the browser support and auto-send webp instead of png/jpg

 

[birdie]

Global: 78.64%

webp only works well at this time if you auto-convert server-side, detect the browser support and auto-send webp instead of png/jpg

I wasn't talking about converting website assets to WebP. I just wanted it to be enabled in your forums, so that people could upload webp pictures (right not you can upload WebP's only as part of ZIP files). And the figure is far above 78.64% for one simple reason that absolute most users on TPU are from Windows. But suit yourself anyways.

 

[R-T-B]

I would not mind, I alreeady try to use lossless pngs where possible anyhow to save bandwidth (gui screenshots, etc are usually smaller than jpg).

But no biggie either way.

 

[W1zzard]

so that people could upload webp pictures

This has been enabled. I'm still undecided, because some people won't be able to view your images. Let's see what happens

 

[birdie]

Test - passed.

@W1zzard how difficult will it be to make XenForo treat such files as pictures as opposed to binary attachments?

So, now your forums return:

Content-Disposition: attachment; filename="1.webp"

and instead it must be:

Content-Type: image/webp

 

[R-T-B]

Test - passed.

@W1zzard how difficult will it be to make XenForo treat such files as pictures as opposed to a binary attachment?

So, now your forums return:

Content-Disposition: attachment; filename="1.webp"

and instead it must be:

Content-Type: image/webp

Yeah, without that the utility is like zero.

 

[remixedcat]

I tried to upload a webp and the forum didn't let me. Had to ss with my phone using the edge menu and then upload the png it made..

I use slimjet browser (chrome variant) on desktop and Samsung browser on mobile

 

[birdie]

@W1zzard

If XenForo doesn't allow that, it could be trivially changed in nginx/apache either by replacing attachment with inline or removing Content-Disposition altogether.

 

[W1zzard]

The underlying technical reason why webp isn't displayed inline is because the current php software stack doesnt support validating them.
if you just display anything ".webp", it can leads to xss

As designed - Image Proxy didn't work on Images with .webp extension

Sample: Image Direct URL: http://res.cloudinary.com/demo/image/upload/w_300/sample.webp

xenforo.com

 

[birdie]

So they need to formally verify that the particular file is indeed a WebP image otherwise it could lead to an XSS. OK. I wonder why it's taking them so long to write a verifier for this format. It is well described and the feature could be implemented in under an hour: https://developers.google.com/speed/webp/docs/riff_container

Again, it's not for you, it's for XenForo developers but it just sucks that they don't want to support this standard.

There's a bog-standard function to parse binary files in PHP: https://www.php.net/manual/en/function.unpack.php

I can probably write a verifier in my spare time. Nothing looks complicated.

 

[W1zzard]

why

Global: 78.64%

this