Filtering uploaded files

[Zexbe]

When dealing with crates, the site should check that they are a sane size, and file type before uploading them. Ex: 100gb video should be blocked.

[jyn514]

Relevant code: https://github.com/rust-lang/docs.rs/blob/master/src/db/file.rs#L190

[Kixiron]

What seems like a reasonable file size limit @jyn514?

[syphar]

From what I understand, a 100 GB video file could only end up in docs.rs, if it was previously uploaded to crates.io too, which I assume has reasonable limits.

I could imagine that macro generated docs could reach sizes that are bigger (megabytes?), so some limit is perhaps helpful to releave the server.