Commit d543c41

@@ -0,0 +1,45 @@
+module Saml
+  module Kit
+    class LogoutRequest
+      class Builder
+        attr_accessor :id, :destination, :issuer, :name_id_format, :now
+        attr_reader :user
+
+        def initialize(user, configuration: Saml::Kit.configuration)
+          @user = user
+          @id = SecureRandom.uuid
+          @issuer = configuration.issuer
+          @name_id_format = Saml::Kit::Namespaces::PERSISTENT
+          @now = Time.now.utc
+        end
+
+        def to_xml
+          xml = ::Builder::XmlMarkup.new
+          xml.instruct!
+          xml.LogoutRequest logout_request_options do
+            xml.Issuer issuer
+            xml.NameID name_id_options, user.name_id_for(self)
+          end
+          xml.target!
+        end
+
+        private
+
+        def logout_request_options
+          {
+            ID: id,
+            Version: "2.0",
+            IssueInstant: now.utc.iso8601,
+            Destination: destination,
+          }
+        end
+
+        def name_id_options
+          {
+            Format: name_id_format,
+          }
+        end
+      end
+    end
+  end
+end

@@ -17,6 +17,7 @@ require "saml/kit/configuration"
 require "saml/kit/content"
 require "saml/kit/default_registry"
 require "saml/kit/fingerprint"
+require "saml/kit/logout_request"
 require "saml/kit/namespaces"
 require "saml/kit/metadata"
 require "saml/kit/request"

@@ -0,0 +1,30 @@
+require 'spec_helper'
+
+RSpec.describe Saml::Kit::LogoutRequest do
+  describe described_class::Builder do
+    subject { described_class.new(user) }
+    let(:user) { double(:user, name_id_for: name_id) }
+    let(:name_id) { SecureRandom.uuid }
+
+    it 'produces the expected xml' do
+      travel_to 1.second.from_now
+      subject.id = SecureRandom.uuid
+      subject.destination = FFaker::Internet.http_url
+      subject.issuer = FFaker::Internet.http_url
+      subject.name_id_format = Saml::Kit::Namespaces::TRANSIENT
+
+      result = subject.to_xml
+      xml_hash = Hash.from_xml(result)
+
+      expect(xml_hash['LogoutRequest']['ID']).to eql(subject.id)
+      expect(xml_hash['LogoutRequest']['Version']).to eql("2.0")
+      expect(xml_hash['LogoutRequest']['IssueInstant']).to eql(Time.now.utc.iso8601)
+      expect(xml_hash['LogoutRequest']['Destination']).to eql(subject.destination)
+
+      expect(xml_hash['LogoutRequest']['Issuer']).to eql(subject.issuer)
+      expect(xml_hash['LogoutRequest']['NameID']).to eql(name_id)
+      doc = Nokogiri::XML(result)
+      expect(doc.xpath("//LogoutRequest//NameID[@Format=\"#{subject.name_id_format}\"]")).to be_present
+    end
+  end
+end