Class: OpenID::Yadis::XRI::ProxyResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/openid/yadis/xrires.rb

Constant Summary collapse

DEFAULT_PROXY = 
"http://proxy.xri.net/"

Instance Method Summary collapse

Constructor Details

#initialize(proxy_url = nil) ⇒ ProxyResolver

Returns a new instance of ProxyResolver.



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# File 'lib/openid/yadis/xrires.rb', line 17

def initialize(proxy_url = nil)
  @proxy_url = proxy_url || DEFAULT_PROXY

  @proxy_url += "/" unless @proxy_url.match?("/$")
end

Instance Method Details

#query(xri) ⇒ Object

Raises:



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# File 'lib/openid/yadis/xrires.rb', line 40

def query(xri)
  # these can be query args or http headers, needn't be both.
  # headers = {'Accept' => 'application/xrds+xml;sep=true'}
  url = query_url(xri)
  begin
    response = OpenID.fetch(url)
  rescue StandardError
    raise XRIHTTPError, "Could not fetch #{xri}, #{$!}"
  end
  raise XRIHTTPError, "Could not fetch #{xri}" if response.nil?

  xrds = Yadis.parseXRDS(response.body)
  canonical_id = Yadis.get_canonical_id(xri, xrds)

  [canonical_id, Yadis.services(xrds)]
  # TODO:
  #  * If we do get hits for multiple service_types, we're almost
  #    certainly going to have duplicated service entries and
  #    broken priority ordering.
end

#query_url(xri, service_type = nil) ⇒ Object 



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# File 'lib/openid/yadis/xrires.rb', line 23

def query_url(xri, service_type = nil)
  # URI normal form has a leading xri://, but we need to strip
  # that off again for the QXRI.  This is under discussion for
  # XRI Resolution WD 11.
  qxri = XRI.to_uri_normal(xri)[6..-1]
  hxri = @proxy_url + qxri
  args = {"_xrd_r" => "application/xrds+xml"}
  if service_type
    args["_xrd_t"] = service_type
  else
    # don't perform service endpoint selection
    args["_xrd_r"] += ";sep=false"
  end

  XRI.append_args(hxri, args)
end