Stremio returns 415 Media Unsupported code

[milouk]

Hello,

Im using your image to host a personal stremio server over http. However im getting a 415 Media Unsupported error code when trying to stream anything. Do you have any idea what could be wrong?

Thanks

[n0bodysec]

Hello,

are you using the latest commit (#18b9295)?

What browser are you using?
Are you using a local IP/hostname to access the server/client?

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EDIT: I was able to reproduce the issue. Apparently it is related to stremio-web itself (currently under development, not recommended for production builds). The same problem is present in the netlify deployment (stremio-development.netlify.app). The strange thing about this is that I can't reproduce the problem in all movies.

I can run the native Stremio app with the dockerized server without issues.

---

EDIT: Maybe it's related to the way both apps manage to get the m3u8 file.

Stremio Web: http://hostname.local:11470/hlsv2/806423f72f2e69b996ad9abed0ffccfe/master.m3u8?mediaURL=http%3A%2F%2Fhostname.local%3A11470%2Ff82f1ab37bb1c8c46a61ef1f6052e98284f2a51b%2F0

Stremio Core (app.strem.io): http://local.strem.io:11470/f82f1ab37bb1c8c46a61ef1f6052e98284f2a51b/0/hls.m3u8

"mediaURL" arg isn't even present in server.js.

[n0bodysec]

Apparently this issue is related to the stremio-video repository.

[n0bodysec]

Ok, actually I made a "fix" by editing only the server.js file (this file isn't the problem because stremio-core works well).

I managed to "bypass" all the hlsv2 related queries to the "old queries".

Explanation:

Server file: https://dl.strem.io/four/master/server.js

Check this chunk of code (extracted from server.js):

var setHLSFrom = function(req, res, next) {
    var first = req.params.first, second = req.params.second, from = req.params.from || req.query.from;
    if (from) req.params.from = decodeURIComponent(from);
    else if (first.length == 40) req.params.from = enginefs.baseUrlLocal+"/"+first+"/"+second;
    else if (first == "file" || first == "url") req.params.from = second;
    next();
};

enginefs.router.get("/:first/:second/hls.m3u8", setHLSFrom, HLS.masterPlaylistMiddleware);
enginefs.router.get("/:first/:second/master.m3u8", setHLSFrom, HLS.masterMultiPlaylistMiddleware);

I emulated the "old queries" with the following conditional in setHLSFrom

if (req.params.first === 'hlsv2') {
	let tmp0 = req.query.mediaURL.split('/');
	req.params.first = tmp0[3];
	req.params.second = tmp0[4];
}

I have also removed the masterMultiPlaylistMiddleware function. This function controls the requests made to the master.m3u8 file. Since the stremio-core make requests to hls.m3u8 file, I replaced the executed callback for the router.get of the hls.m3u8 file.

enginefs.router.get("/:first/:second/hls.m3u8", setHLSFrom, HLS.masterPlaylistMiddleware);
enginefs.router.get("/:first/:second/master.m3u8", setHLSFrom, HLS.masterPlaylistMiddleware); // original: HLS.masterMultiPlaylistMiddleware

At this point, the requests made to master.m3u8 and hls.m3u8 are identical.

Now I just need to perform all those fixes automatically

RUN sed -i -E "s|(var first = req\.params\.first)|if (req.params.first === 'hlsv2') { req.params.first = req.query.mediaURL.split('/')[3]; req.params.second = req.query.mediaURL.split('/')[4]; }\n    \1|" server/server.js
RUN sed -i -E 's/HLS.masterMultiPlaylistMiddleware\)/HLS.masterPlaylistMiddleware\)/' server/server.js

This method is very hacky in many ways. I don't know if this affect some movies/series in any way.
I also think that the problem is in the source code of stremio-video, so the fix should be done there.

[milouk]

wow, that was a quick fix. As per my investigation you are correct. I tested it and it works :) thanks again. Ill keep an eye on stremio-video for a proper fix. Cheers

[n0bodysec]

You are welcome!

I still need to investigate further, I want to fix it in a proper way 😅