Cybersource: Add apple_pay params for discover if flag passed (#5213)

CHANGELOG

@@ -19,6 +19,7 @@
 * Iveri: Add AuthReversal for Authorizations [almalee24] #5201
 * Decidir & Braintree: Scrub cryptogram and card number [almalee24] #5220
 * Naranja: Update valid number check to include luhn10 [DustinHaefele] #5217
+* Cybersource: Add apple_pay with discover. [DustinHaefele] #5213
 
 == Version 1.137.0 (August 2, 2024)
 * Unlock dependency on `rexml` to allow fixing a CVE (#5181).

lib/active_merchant/billing/gateways/cyber_source.rb

@@ -177,7 +177,7 @@ def initialize(options = {})
       end
 
       def authorize(money, payment_method, options = {})
-        if valid_payment_method?(payment_method)
+        if valid_payment_method?(payment_method, options)
           setup_address_hash(options)
           commit(build_auth_request(money, payment_method, options), :authorize, money, options)
         else
@@ -193,7 +193,7 @@ def capture(money, authorization, options = {})
       end
 
       def purchase(money, payment_method, options = {})
-        if valid_payment_method?(payment_method)
+        if valid_payment_method?(payment_method, options)
           setup_address_hash(options)
           commit(build_purchase_request(money, payment_method, options), :purchase, money, options)
         else
@@ -233,7 +233,7 @@ def credit(money, creditcard_or_reference, options = {})
       # To charge the card while creating a profile, pass
       # options[:setup_fee] => money
       def store(payment_method, options = {})
-        if valid_payment_method?(payment_method)
+        if valid_payment_method?(payment_method, options)
           setup_address_hash(options)
           commit(build_create_subscription_request(payment_method, options), :store, nil, options)
         else
@@ -321,10 +321,12 @@ def verify_credentials
 
       private
 
-      def valid_payment_method?(payment_method)
+      def valid_payment_method?(payment_method, options)
         return true unless payment_method.is_a?(NetworkTokenizationCreditCard)
 
-        %w(visa master american_express).include?(card_brand(payment_method))
+        brands = %w(visa master american_express)
+        brands << 'discover' if options[:enable_cybs_discover_apple_pay]
+        brands.include?(card_brand(payment_method))
       end
 
       # Create all required address hash key value pairs
@@ -931,6 +933,13 @@ def add_auth_wallet(xml, payment_method, options)
             xml.tag!('xid', Base64.encode64(cryptogram[20...40])) if cryptogram.bytes.count > 20
             xml.tag!('reconciliationID', options[:reconciliation_id]) if options[:reconciliation_id]
           end
+        when :discover
+          return unless options[:enable_cybs_discover_apple_pay]
+
+          xml.tag! 'ccAuthService', { 'run' => 'true' } do
+            xml.tag!('cavv', payment_method.payment_cryptogram) unless commerce_indicator
+            xml.tag!('commerceIndicator', 'internet')
+          end
         end
       end
 

test/unit/gateways/cyber_source_test.rb

@@ -42,6 +42,12 @@ def setup
                                                   eci: '05',
                                                   payment_cryptogram: '111111111100cryptogram',
                                                   source: :apple_pay)
+    @apple_pay_discover = network_tokenization_credit_card('6011111111111117',
+                                                           brand: 'discover',
+                                                           transaction_id: '123',
+                                                           eci: '05',
+                                                           payment_cryptogram: '111111111100cryptogram',
+                                                           source: :apple_pay)
     @google_pay = network_tokenization_credit_card('4242424242424242', source: :google_pay)
     @check = check()
 
@@ -563,6 +569,19 @@ def test_successful_apple_pay_purchase_subsequent_auth_mastercard
     assert_success response
   end
 
+  def test_successful_apple_pay_purchase_subsequent_auth_discover
+    @gateway.expects(:ssl_post).with do |_host, request_body|
+      assert_match %r'<cavv>', request_body
+      assert_match %r'<commerceIndicator>internet</commerceIndicator>', request_body
+      true
+    end.returns(successful_purchase_response)
+
+    options = @options.merge(enable_cybs_discover_apple_pay: true)
+
+    assert response = @gateway.purchase(@amount, @apple_pay_discover, options)
+    assert_success response
+  end
+
   def test_successful_reference_purchase
     @gateway.stubs(:ssl_post).returns(successful_create_subscription_response, successful_purchase_response)