Generic file server support for playlist

[Turg-er]

Support for gachi.gay and its variants was disabled a couple of months ago due to its shutdown, and the feature for playlists has been missed. Since gachi.gay has been revived under new ownership, a straightforward solution would be to revert the previous changes. However, I'm wondering if a more generic version could also be implemented (could maintain special gachi.gay implementation to enable support for its thumbnails). This would involve making a HEAD request to the given URL and checking if the content-type header in the response matches video/* or audio/*. If so, it could be embedded in a video or audio tag. This would enable support for https://catsh.zip or the https://patchy.moe variants (the user would have to share the /-/file/... path) or any other generic file server. Additionally a file name could potentially be parsed from the content-disposition header.

Regarding additional features, it's unclear if thumbnail support is feasible like it is out of the box with gachi.gay. A potential concern is that a malicious actor could exploit this to easily obtain a streamer's IP address. To mitigate this, the feature could be opt-in with a warning, and/or users could be allowed to maintain a whitelist of permitted URLs.

Would be interested in your thoughts or specific implementation details.

[badoge]

Another thing all these new services don't have is duration, The old kappa.lol host used to have video/audio duration in the api I think. All the new hosts don't seem to support that.

IP leakage shouldn't be a problem because I can use my proxy.

I guess I can support this and have it disabled by default, I'll look into it in a month from now after I'm done with other stuff :)

[Turg-er]

Thanks for considering this! I am open to making code contributions for this, but I completely understand if you prefer doing it yourself. I have no problem waiting.

It is unfortunate that Content-Duration isn't a standardized response header.

When you say proxy would that include proxying access to the video/audio blob itself, not just the HEAD request, as in fetching the blob in the Cloudflare Worker and returning the response directly?

[badoge]

It's this proxy that I use for the poll images and some other stuff
https://poll.chat.vote/ff288f09
https://proxy.donk.workers.dev/?url=https://static-cdn.jtvnw.net/emoticons/v2/521050/default/dark/3.0