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Redfoot

- ( Page Handler )

• http://redfoot.net/3.0/code#python,

  import md5
  FOAF = redfoot.namespace("http://xmlns.com/foaf/0.1/")
  SESSION = redfoot.namespace("http://redfoot.net/3.0/session#")
  return_uri = URIRef(request.parameters.get("return_uri", "%s/" % request.host))
  register_uri = URIRef(request.parameters.get("register_uri", "%s/register/" % request.host))
  username = request.parameters.get("username", None)
  password = request.parameters.get("password", None)
  verify = request.parameters.get("verify", None)
  invitation = URIRef(request.parameters.get("invitation", None))
  from rdflib.Namespace import Namespace
  USER = Namespace("%s/user#" % request.host)
  def register():
      request.create_session()
      sid = request.session_id
      assert sid
      context = redfoot.get_context(redfoot.context_id(sid))
      context.remove((sid, SESSION.message, None))
      users_context = redfoot.get_context(redfoot.context_id("%s#users" % request.host))
      if invitation is None or (invitation, RDF.type, USER.Invitation) not in redfoot:
          context.add((sid, SESSION.message, Literal("No invitation found")))
          response.setStatus(302, 'found')   
          response.setHeader('Location', register_uri)
          return
      if (None, USER.invitation, invitation) in redfoot: # if already associated with a user
          context.add((sid, SESSION.message, Literal("Sorry, invitation already accepted.")))
          response.setStatus(302, 'found')   
          response.setHeader('Location', register_uri)
          return
      uid = redfoot.value(invitation, FOAF.mbox)
      if uid is None:
          context.add((sid, SESSION.message, Literal("Sorry, invitation missing a FOAF.mbox")))
          response.setStatus(302, 'found')   
          response.setHeader('Location', register_uri)
          return
      if (uid, SESSION.hexdigest, None) in redfoot:
          context.add((sid, SESSION.message, Literal("User already exists.")))
          response.setStatus(302, 'found')   
          response.setHeader('Location', register_uri)
          return
      if not username:
          context.add((sid, SESSION.message, Literal("No username entered.")))
          response.setStatus(302, 'found')   
          response.setHeader('Location', register_uri)
          return
      # TODO: check username is not in user
      if password==verify:
          hexdigest = Literal(md5.new(password).hexdigest())
          redfoot.remove((sid, SESSION.authenticated, None))
          redfoot.remove((sid, SESSION.uid, None))
          context.add((sid, SESSION.authenticated, Literal("True")))
          context.add((sid, SESSION.uid, uid))
          users_context.add((uid, RDFS.label, Literal(username)))
          users_context.add((uid, RDF.type, URIRef("#User", base=request.host)))
          users_context.add((uid, SESSION.hexdigest, hexdigest))
          #users_context.add((uid, DC_created, Literal("%s" % time(), datatype=URIRef(REDFOOT.seconds_since_epoch))))
          users_context.add((uid, USER.invitation, invitation))
          response.setStatus(302, 'found')   
          response.setHeader('Location', return_uri)
          return
      else:
          context.add((sid, SESSION.message, Literal("password and verify mismatch.")))
          response.setStatus(302, 'found')   
          response.setHeader('Location', register_uri)
          return
  if request.method=='POST':
      register()
  else:
      pass # TODO
        

• content_type,

  application/xhtml+xml