require 'openid/extensions/sreg'
require 'openid/message'
require 'openid/server'
require 'test/unit'

module OpenID
  module SReg
    module SRegTest
      SOME_DATA = {
        'nickname'=>'linusaur',
        'postcode'=>'12345',
        'country'=>'US',
        'gender'=>'M',
        'fullname'=>'Leonhard Euler',
        'email'=>'president@whitehouse.gov',
        'dob'=>'0000-00-00',
        'language'=>'en-us',
      }

      class SRegTest < Test::Unit::TestCase

        def test_is11
          assert_equal(NS_URI, NS_URI_1_1)
        end

        def test_check_field_name
          DATA_FIELDS.keys.each{|field_name|
            OpenID::check_sreg_field_name(field_name)
          }
          assert_raises(ArgumentError) { OpenID::check_sreg_field_name('invalid') }
          assert_raises(ArgumentError) { OpenID::check_sreg_field_name(nil) }
        end

        def test_unsupported
          endpoint = FakeEndpoint.new([])
          assert(!OpenID::supports_sreg?(endpoint))
          assert_equal([NS_URI_1_1,NS_URI_1_0], endpoint.checked_uris)
        end

        def test_supported_1_1
          endpoint = FakeEndpoint.new([NS_URI_1_1])
          assert(OpenID::supports_sreg?(endpoint))
          assert_equal([NS_URI_1_1], endpoint.checked_uris)
        end

        def test_supported_1_0
          endpoint = FakeEndpoint.new([NS_URI_1_0])
          assert(OpenID::supports_sreg?(endpoint))
          assert_equal([NS_URI_1_1,NS_URI_1_0], endpoint.checked_uris)
        end

      end

      class FakeEndpoint < Object
        attr_accessor :checked_uris
        def initialize(supported)
          @supported = supported
          @checked_uris = []
        end

        def uses_extension(namespace_uri)
          @checked_uris << namespace_uri
          return @supported.member?(namespace_uri)
        end
      end

      class FakeMessage < Object
        attr_accessor :namespaces
        attr_accessor :openid1
        def initialize
          @openid1 = false
          @namespaces = NamespaceMap.new
        end
        
        def is_openid1
          return @openid1
        end

      end

      class GetNSTest < Test::Unit::TestCase
        def setup
          @msg = FakeMessage.new
        end

        def test_openid2_empty
          ns_uri = OpenID::get_sreg_ns(@msg)
          assert_equal('sreg', @msg.namespaces.get_alias(ns_uri))
          assert_equal(NS_URI, ns_uri)
        end

        def test_openid1_empty
          @msg.openid1 = true
          ns_uri = OpenID::get_sreg_ns(@msg)
          assert_equal('sreg', @msg.namespaces.get_alias(ns_uri))
          assert_equal(NS_URI, ns_uri)
        end
        
        def test_openid1defined_1_0
          @msg.openid1 = true
          @msg.namespaces.add(NS_URI_1_0)
          ns_uri = OpenID::get_sreg_ns(@msg)
          assert_equal(NS_URI_1_0, ns_uri)
        end

        def test_openid1_defined_1_0_override_alias
          [true, false].each{|openid_version|
            [NS_URI_1_0, NS_URI_1_1].each{|sreg_version|
              ['sreg', 'bogus'].each{|name|
                setup
                @msg.openid1 = openid_version
                @msg.namespaces.add_alias(sreg_version, name)
                ns_uri = OpenID::get_sreg_ns(@msg)
                assert_equal(name, @msg.namespaces.get_alias(ns_uri))
                assert_equal(sreg_version, ns_uri)
              }
            }
          }
        end
        
        def test_openid1_defined_badly
          @msg.openid1 = true
          @msg.namespaces.add_alias('http://invalid/', 'sreg')
          assert_raises(NamespaceError) { OpenID::get_sreg_ns(@msg) }
        end

        def test_openid2_defined_badly
          @msg.namespaces.add_alias('http://invalid/', 'sreg')
          assert_raises(NamespaceError) { OpenID::get_sreg_ns(@msg) }
        end

        def test_openid2_defined_1_0
          @msg.namespaces.add(NS_URI_1_0)
          ns_uri = OpenID::get_sreg_ns(@msg)
          assert_equal(NS_URI_1_0, ns_uri)
        end

        def test_openid1_sreg_ns_from_args
          args = {
            'sreg.optional'=> 'nickname',
            'sreg.required'=> 'dob',
          }

          m = Message.from_openid_args(args)

          assert_equal('nickname', m.get_arg(NS_URI_1_1, 'optional'))
          assert_equal('dob', m.get_arg(NS_URI_1_1, 'required'))
        end

      end

      class SRegRequestTest < Test::Unit::TestCase
        def test_construct_empty
          req = Request.new
          assert_equal([], req.optional)
          assert_equal([], req.required)
          assert_equal(nil, req.policy_url)
          assert_equal(NS_URI, req.ns_uri)
        end

        def test_construct_fields
          req = Request.new(['nickname'],['gender'],'http://policy', 'http://sreg.ns_uri')
          assert_equal(['gender'], req.optional)
          assert_equal(['nickname'], req.required)
          assert_equal('http://policy', req.policy_url)
          assert_equal('http://sreg.ns_uri', req.ns_uri)
        end

        def test_construct_bad_fields
          assert_raises(ArgumentError) {Request.new(['elvis'])}
        end

        def test_from_openid_request_message_copied
          message = Message.from_openid_args({"sreg.required" => "nickname"})
          openid_req = Server::OpenIDRequest.new
          openid_req.message = message
          sreg_req = Request.from_openid_request(openid_req)
          # check that the message is copied by looking at sreg namespace
          assert_equal(NS_URI_1_1, message.namespaces.get_namespace_uri('sreg'))
          assert_equal(NS_URI, sreg_req.ns_uri)
          assert_equal(['nickname'], sreg_req.required)
        end

        def test_from_openid_request_ns_1_0
          message = Message.from_openid_args({'ns.sreg' => NS_URI_1_0, 
                                               "sreg.required" => "nickname"})
          openid_req = Server::OpenIDRequest.new
          openid_req.message = message
          sreg_req = Request.from_openid_request(openid_req)
          assert_equal(NS_URI_1_0, sreg_req.ns_uri)
          assert_equal(['nickname'], sreg_req.required)
        end

        def test_from_openid_request_no_sreg
          message = Message.new
          openid_req = Server::OpenIDRequest.new
          openid_req.message = message
          sreg_req = Request.from_openid_request(openid_req)
          assert(sreg_req.nil?)
        end

        def test_parse_extension_args_empty
          req = Request.new
          req.parse_extension_args({})
        end

        def test_parse_extension_args_extra_ignored
          req = Request.new
          req.parse_extension_args({'extra' => 'stuff'})
        end

        def test_parse_extension_args_non_strict
          req = Request.new
          req.parse_extension_args({'required' => 'stuff'})
          assert_equal([], req.required)
        end
        
        def test_parse_extension_args_strict
          req = Request.new
          assert_raises(ArgumentError) {
            req.parse_extension_args({'required' => 'stuff'}, true)
          }
        end

        def test_parse_extension_args_policy
          req = Request.new
          req.parse_extension_args({'policy_url' => 'http://policy'}, true)
          assert_equal('http://policy', req.policy_url)
        end

        def test_parse_extension_args_required_empty
          req = Request.new
          req.parse_extension_args({'required' => ''}, true)
          assert_equal([], req.required)
        end

        def test_parse_extension_args_optional_empty
          req = Request.new
          req.parse_extension_args({'optional' => ''},true)
          assert_equal([], req.optional)
        end

        def test_parse_extension_args_optional_single
          req = Request.new
          req.parse_extension_args({'optional' => 'nickname'},true)
          assert_equal(['nickname'], req.optional)
        end

        def test_parse_extension_args_optional_list
          req = Request.new
          req.parse_extension_args({'optional' => 'nickname,email'},true)
          assert_equal(['nickname','email'], req.optional)
        end

        def test_parse_extension_args_optional_list_bad_nonstrict
          req = Request.new
          req.parse_extension_args({'optional' => 'nickname,email,beer'})
          assert_equal(['nickname','email'], req.optional)
        end

        def test_parse_extension_args_optional_list_bad_strict
          req = Request.new
          assert_raises(ArgumentError) {
            req.parse_extension_args({'optional' => 'nickname,email,beer'}, true)
          }
        end

        def test_parse_extension_args_both_nonstrict
          req = Request.new
          req.parse_extension_args({'optional' => 'nickname', 'required' => 'nickname'})
          assert_equal(['nickname'], req.required)
          assert_equal([], req.optional)
        end

        def test_parse_extension_args_both_strict
          req = Request.new
          assert_raises(ArgumentError) {
            req.parse_extension_args({'optional' => 'nickname', 'required' => 'nickname'},true)
          }
        end

        def test_parse_extension_args_both_list
          req = Request.new
          req.parse_extension_args({'optional' => 'nickname,email', 'required' => 'country,postcode'},true)
          assert_equal(['nickname','email'], req.optional)
          assert_equal(['country','postcode'], req.required)
        end

        def test_all_requested_fields
          req = Request.new
          assert_equal([], req.all_requested_fields)
          req.request_field('nickname')
          assert_equal(['nickname'], req.all_requested_fields)
          req.request_field('gender', true)
          requested = req.all_requested_fields.sort
          assert_equal(['gender', 'nickname'], requested)
        end

        def test_were_fields_requested
          req = Request.new
          assert(!req.were_fields_requested?)
          req.request_field('nickname')
          assert(req.were_fields_requested?)
        end

        def test_member
          req = Request.new
          DATA_FIELDS.keys.each {|f|
            assert(!req.member?(f))
          }
          assert(!req.member?('something else'))
          req.request_field('nickname')
          DATA_FIELDS.keys.each {|f|
            assert_equal(f == 'nickname',req.member?(f))
          }
        end

        def test_request_field_bogus
          req = Request.new
          fields = DATA_FIELDS.keys
          fields.each {|f| req.request_field(f) }
          assert_equal(fields, req.optional)
          assert_equal([], req.required)

          # By default, adding the same fields over again has no effect
          fields.each {|f| req.request_field(f) }
          assert_equal(fields, req.optional)
          assert_equal([], req.required)

          # Requesting a field as required overrides requesting it as optional
          expected = fields[1..-1]
          overridden = fields[0]
          req.request_field(overridden, true)
          assert_equal(expected, req.optional)
          assert_equal([overridden], req.required)

          fields.each {|f| req.request_field(f, true) }
          assert_equal(fields, req.required)
          assert_equal([], req.optional)
        end

        def test_request_fields_type
          req = Request.new
          assert_raises(ArgumentError) { req.request_fields('nickname') }
        end

        def test_request_fields
          req = Request.new
          fields = DATA_FIELDS.keys

          req.request_fields(fields)
          assert_equal(fields, req.optional)
          assert_equal([], req.required)
          
          # By default, adding the same fields over again has no effect
          req.request_fields(fields)
          assert_equal(fields, req.optional)
          assert_equal([], req.required)

          # required overrides optional
          expected = fields[1..-1]
          overridden = fields[0]
          req.request_fields([overridden], true)
          assert_equal(expected, req.optional)
          assert_equal([overridden], req.required)

          req.request_fields(fields, true)
          assert_equal(fields, req.required)
          assert_equal([], req.optional)

          # optional does not override required
          req.request_fields(fields)
          assert_equal(fields, req.required)
          assert_equal([], req.optional)
        end

        def test_get_extension_args
          req = Request.new
          assert_equal({}, req.get_extension_args)

          req.request_field('nickname')
          assert_equal({'optional' => 'nickname'}, req.get_extension_args)

          req.request_field('email')
          assert_equal({'optional' => 'nickname,email'}, req.get_extension_args)

          req.request_field('gender', true)
          assert_equal({'optional' => 'nickname,email',
                         'required' => 'gender'}, req.get_extension_args)

          req.request_field('dob', true)
          assert_equal({'optional' => 'nickname,email',
                         'required' => 'gender,dob'}, req.get_extension_args)

          req.policy_url = 'http://policy'
          assert_equal({'optional' => 'nickname,email',
                         'required' => 'gender,dob',
                         'policy_url' => 'http://policy'},
                       req.get_extension_args)

        end
      end

      class DummySuccessResponse
        attr_accessor :message
        def initialize(message, signed_stuff)
          @message = message
          @signed_stuff = signed_stuff
        end
        def get_signed_ns(ns_uri)
          return @signed_stuff
        end
      end


      class SRegResponseTest < Test::Unit::TestCase
        def test_construct
          resp = Response.new(SOME_DATA)
          assert_equal(SOME_DATA, resp.get_extension_args)
          assert_equal(NS_URI, resp.ns_uri)
          resp2 = Response.new({}, "http://foo")
          assert_equal({}, resp2.get_extension_args)
          assert_equal('http://foo', resp2.ns_uri)
        end

        def test_from_success_response_signed
          message = Message.from_openid_args({
                                               'sreg.nickname'=>'The Mad Stork',
                                             })
          success_resp = DummySuccessResponse.new(message, {})
          sreg_resp = Response.from_success_response(success_resp)
          assert_equal({}, sreg_resp.get_extension_args)
        end

        def test_from_success_response_unsigned
          message = Message.from_openid_args({
                                               'ns.sreg' => NS_URI,
                                               'sreg.nickname' => 'The Mad Stork',
                                             })
          success_resp = DummySuccessResponse.new(message, {})
          sreg_resp = Response.from_success_response(success_resp, false)
          assert_equal({'nickname' => 'The Mad Stork'}, 
                       sreg_resp.get_extension_args)
        end
      end

      class SendFieldsTest < Test::Unit::TestCase
        # class SendFieldsTest < Object
        def test_send_fields
          # create a request message with simple reg fields
          sreg_req = Request.new(['nickname', 'email'], ['fullname'])
          req_msg = Message.new
          req_msg.update_args(NS_URI, sreg_req.get_extension_args)
          req = Server::OpenIDRequest.new
          req.message = req_msg

          # -> checkid_* request

          # create a response
          resp_msg = Message.new
          resp = Server::OpenIDResponse.new(req)
          resp.fields = resp_msg
          sreg_resp = Response.extract_response(sreg_req, SOME_DATA)
          resp.add_extension(sreg_resp)

          # <- id_res response

          # extract sent fields
          sreg_data_resp = resp_msg.get_args(NS_URI)
          assert_equal({'nickname' => 'linusaur',
                         'email'=>'president@whitehouse.gov',
                         'fullname'=>'Leonhard Euler',
                       }, sreg_data_resp)
        end
      end
    end
  end
end