[batoto] replace k-subdomain image URLs with n-subdomain

[nthduy]

Fixes broken image downloads from batoto by automatically replacing k-subdomain image URLs with n-subdomain equivalents.

Batoto's k-subdomain image servers (e.g., k01.mbopg.org) are currently broken and return errors. The n-subdomain servers (e.g., n01.mbopg.org) serve the same images and are working correctly.

Example

Before: https://k01.mbopg.org/media/7006/9bd/.../file.webp
After: https://n01.mbopg.org/media/7006/9bd/.../file.webp

[mikf]

Erreur 503 - Service temporairement indisponible ou en maintenance

Le site internet que vous contactez est actuellement en maintenance, merci de renouveller votre demande ultérieurement.

How long has this maintenance been going on?
I'd expect this to resolve itself in a few days under normal circumstances.

[nthduy]

Here is a screenshot from their official discord, the situation have been going on for more than a month unfortunately.

[mikf]

That's related the site itself, but not the image servers like mbxma.org as far as I can tell.
https://k04.mbxma.org/media/7006/a4d/60a00a6257a0cdad2ae84d4a/6600527_940_1996_94864.webp

---

That aside, do you have an example where the ".mb" in url check is necessary?

[nthduy]

Sure, here it is https://k07.mbopg.org/media/00005/images/73/44/7344ac7e75fdd842f009c0147354ee3d07f12f0b_166253_1200_863.jpg . I forgot to put a disclaimer that the fix is from their community, they have a bookmark version that you can run in the browser console, i simply translate it to python.

setInterval(function(){const fix=str=>str.replace(/\/\/k/g,"//n");document.querySelectorAll("img").forEach(img=>{const props=["src","data-src","data-original","srcset","data-srcset"];props.forEach(p=>{let val=img.getAttribute(p);if(val && val.includes("//k") && val.includes(".mb")){img.setAttribute(p,fix(val));}});if(img.src && img.src.includes("//k") && img.src.includes(".mb")){img.src=fix(img.src);}});},2000);

A more detailled version
https://github.com/Sumon-Kayal/Universal-Batoto-Image-Fixer/blob/2cd4de65afcab0cdcf130a4be785d47bd951ba45/fixer.js#L454