Add additional HTTP headers

[0xfeedface]

• Cache-Control
• Last-Modified

[seebi]

• Allow
  (see http://www.w3.org/Submission/ldbp/#bpr-HTTP_HEAD)

[white-gecko]

Souldn't it also return a document type header?

It returnes:

$ netcat localhost 8001
GET http://webid.example.com/me
Accept: text/turtle

HTTP/1.1 200 OK
Date: Mon, 15 Apr 2013 16:15:07 GMT
Server: Crystal/0.1
Content-Length: 765
Connection: close

… (content)

[0xfeedface]

Do you mean Content-Type?

[white-gecko]

Yes. But maybe netcat just doesn't show me the complete header (which would be strange).

[0xfeedface]

There is currently no Content-Type header sent. But I don't know of any Document-Type header. That's why I'm asking.

[white-gecko]

sorry I meant Content-Type

[0xfeedface]

For ETag we need a canonical representation, based on which we can compute the hash. RDF/JSON does not work because it does not enforce a specific ordering of properties and object values. Any ideas?

[seebi]

so we need to normalize it in some way.
rdf crypto tools use sorted ntriples for that (with bnode renaming / sorting as well)