Good practices regarding MIME type

[Sean Conner]

It was thus said that the Great Solène Rapenne once stated:
> Hi,
> 
> I wrote a gemini server in C and I currently use an hardcoded list of 
> file extensions <-> MIME type assocation.
> This isn't great because it relies on file extension which can be wrong, 
> but a file without extension would
> use a default.
> 
> I chose to set a default text/gemini in case the extension is unknown or 
> if the file has no extension.
> 
> What are the good practices to determine a file MIME type?

  For my server [1] you can configure a mapping of extensions to MIME type. 
If a file's extension isn't found in that mapping, then I use libmagic to
determine the MIME type.

  -spc

[1]	https://github.com/spc476/GLV-1.12556