Suddenly getting an error with Google Drive images

[raRaRa]

Hi,

I've been using images.weserv.nl to serve images from my Google Drive folder, which has been working great for about a year now, but now I suddenly get this error:
Error 404: Server couldn't parse the ?url= that you were looking for, error it got: The requested URL returned error: 403

Example image from my Google Drive folder:
https://drive.google.com/uc?id=1PSjfciCTXp4Bqajr9EcXWxMHuWz6P2hC&export=view

and here's the one I'm using with images.weserv.nl:
https://images.weserv.nl/?url=ssl:drive.google.com%2Fuc%3Fid%3D1PSjfciCTXp4Bqajr9EcXWxMHuWz6P2hC%26export%3Dview

Any help would be much appreciated. Thanks!

[raRaRa]

Seems to be related to #141 since it still works with API 3:
https://images.weserv.nl/?url=drive.google.com%2Fuc%3Fid%3D1PSjfciCTXp4Bqajr9EcXWxMHuWz6P2hC%26export%3Dview&api=3

@andrieslouw @kleisauke

Thanks.

[andrieslouw]

Thanks for the report, and narrowing it down to API 4, we're looking into this issue!

[raRaRa]

Thanks for the quick response, much appreciated.

Any idea what could be causing this error for Google Drive links, is it related to the redirect or the link itself?

I'm wondering if I should fallback to API v3 until this has been fixed, is it safe to use v3?

Thanks!

[andrieslouw]

The problem has been found in our urlencoding, which is not exactly according to rfc3986#section-2.2 nor rfc1738#section-2.2. Fixes are being written, but there are lot's of edge cases.

It looks like Google really likes to use the characters $-_.+!*'(), in the URL's they redirect to.

API 3 will still work for a while, but may end up to be redirected to API 4 in the future. It should not break anything though. I think the fix for API 4 will be in production today.

[raRaRa]

Thanks for the update!

[andrieslouw]

Fix written, and being tested in our staging-environment. If we pass all the special cases, it will be pushed to this repo and to production 😄

[andrieslouw]

Fixed!

[raRaRa]

Where do I send PayPal donations to? :)

[andrieslouw]

https://github.com/weserv/images/wiki :

Since 2011 images.weserv.nl is privately funded, and used as a testbed for new techniques in resizing, recognition and processing. Operating costs of the image proxy are very low. To prevent conflicts of interest, we never accepted payments or donations in any form. (...)

But please subscribe to https://github.com/jcupitt/libvips/issues/592, I think it would be fair if donations go to libvips, as it does most of the heavy-lifting nowadays.