[webfinger] Webfinger extension for Sinatra

[Eric Mill <[e-mail]>]

Hi all,

I just wrote an extension for Sinatra, a popular Ruby-based microframework,
that adds a Webfinger endpoint for a given email address and set of
metadata:
https://github.com/konklone/sinatra-webfinger#a-webfinger-plugin-for-sinatra

The idea here is to lower the barrier to adding a Webfinger endpoint for
one's email, for people running Sinatra apps on their domain (like me). I'm
using this on my blog
here<https://konklone.com/.well-known/webfinger?resource=acct:[e-mail]>
.

It does a couple things I'd like your reaction to. For one, it auto-decides
whether data should be in "properties" or "links" based on whether the
value is a URL. For two, it lets you specify common short strings as keys,
and does the mapping to a URI for you, when there is one.

So this is the Ruby code:

webfinger "[e-mail]" => {
  name: "Eric Mill",
  website: "https://konklone.com"}

And this is what the endpoint will produce:

{
  "subject": "[e-mail]",
  "properties": {
    "http://schema.org/name": "Eric Mill"
  },
  "links": [
    {
      "rel": "http://webfinger.net/rel/profile-page",
      "href": "https://konklone.com"
    }
  ]}

I'm doing the mapping from field name to URI here:
https://github.com/konklone/sinatra-webfinger/blob/master/data/urns.yml based
on Will Norris' and Paul Jones' collections of URIs.

Next, I'd like to tackle an extension for Jekyll, and a generator for a
straight static file you can serve with a couple of lines in
nginx/Apache/S3. I'll probably follow the approach I'm taking here in
sinatra-webfinger as closely as possible, so, feedback very welcome!

-- Eric

-- 
konklone.com | @konklone <https://twitter.com/konklone>