Class: OpenID::AX::FetchResponse

Inherits:
KeyValueMessage show all
Defined in:
lib/openid/extensions/ax.rb

Overview

A fetch_response attribute exchange message

Constant Summary

Constants inherited from AXMessage

AXMessage::NS_URI

Instance Attribute Summary collapse

Attributes inherited from KeyValueMessage

#data

Attributes inherited from AXMessage

#mode, #ns_alias, #ns_uri

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from KeyValueMessage

#[], #_get_extension_kv_args, #add_value, #count, #get, #get_single, #set_values

Methods inherited from Extension

#to_message

Constructor Details

#initialize(update_url = nil) ⇒ FetchResponse

Returns a new instance of FetchResponse.



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# File 'lib/openid/extensions/ax.rb', line 383

def initialize(update_url = nil)
  super()
  @mode = 'fetch_response'
  @update_url = update_url
end

Instance Attribute Details

#update_url ⇒ Object (readonly)

Returns the value of attribute update_url.



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# File 'lib/openid/extensions/ax.rb', line 381

def update_url
  @update_url
end

Class Method Details

.from_success_response(success_response, signed = true) ⇒ Object

Construct a FetchResponse object from an OpenID library SuccessResponse object.



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# File 'lib/openid/extensions/ax.rb', line 451

def self.from_success_response(success_response, signed=true)
  obj = self.new
  if signed
    ax_args = success_response.get_signed_ns(obj.ns_uri)
  else
    ax_args = success_response.message.get_args(obj.ns_uri)
  end

  begin
    obj.parse_extension_args(ax_args)
    return obj
  rescue Error => e
    return nil
  end
end

Instance Method Details

#get_extension_args(request = nil) ⇒ Object

Serialize this object into arguments in the attribute exchange namespace Takes an optional FetchRequest. If specified, the response will be validated against this request, and empty responses for requested fields with no data will be sent.



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# File 'lib/openid/extensions/ax.rb', line 394

def get_extension_args(request = nil)
  aliases = NamespaceMap.new
  zero_value_types = []

  if request
    # Validate the data in the context of the request (the
    # same attributes should be present in each, and the
    # counts in the response must be no more than the counts
    # in the request)
    @data.keys.each{|type_uri|
      unless request.member? type_uri
        raise IndexError, "Response attribute not present in request: #{type_uri.inspect}"
      end
    }

    request.attributes.each{|attr_info|
      # Copy the aliases from the request so that reading
      # the response in light of the request is easier
      if attr_info.ns_alias.nil?
        aliases.add(attr_info.type_uri)
      else
        aliases.add_alias(attr_info.type_uri, attr_info.ns_alias)
      end
      values = @data[attr_info.type_uri]
      if values.empty? # @data defaults to []
        zero_value_types << attr_info
      end
      if attr_info.count != UNLIMITED_VALUES and attr_info.count < values.size
        raise Error, "More than the number of requested values were specified for #{attr_info.type_uri.inspect}"
      end
    }
  end

  kv_args = _get_extension_kv_args(aliases)

  # Add the KV args into the response with the args that are
  # unique to the fetch_response
  ax_args = new_args

  zero_value_types.each{|attr_info|
    name = aliases.get_alias(attr_info.type_uri)
    kv_args['type.' + name] = attr_info.type_uri
    kv_args['count.' + name] = '0'
  }
  update_url = (request and request.update_url or @update_url)
  ax_args['update_url'] = update_url unless update_url.nil?
  ax_args.update(kv_args)
  return ax_args
end

#parse_extension_args(ax_args) ⇒ Object 



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# File 'lib/openid/extensions/ax.rb', line 444

def parse_extension_args(ax_args)
  super
  @update_url = ax_args['update_url']
end