added purchase and authorize method of samurai

billing/gateways/samurai_gateway.py

@@ -0,0 +1,45 @@
+from billing import Gateway
+from billing.utils.credit_card import InvalidCard, Visa, MasterCard, \
+     AmericanExpress, Discover
+import samurai
+from django.conf import settings
+
+class SamuraiGateway(Gateway):
+    supported_cardtypes = [Visa, MasterCard, AmericanExpress, Discover]
+    supported_countries = ['US']
+    default_currency = "USD"
+    homepage_url = "https://samurai.feefighters.com/"
+    display_name = "Samurai"
+
+    def __init__(self):
+        import samurai.config as config
+        config.merchant_key = settings.SAMURAI_MERCHANT_KEY
+        config.merchant_password = settings.SAMURAI_MERCHANT_PASSWORD
+        config.processor_token = settings.SAMURAI_PROCESSOR_TOKEN
+        self.samurai = samurai
+
+    def purchase(self, money, credit_card):       
+        if not self.validate_card(credit_card):
+            raise InvalidCard("Invalid Card")
+        try:
+            from samurai.payment_method import PaymentMethod
+            from samurai.processor import Processor
+            pm = PaymentMethod.create(credit_card.number, credit_card.verification_value, credit_card.month, credit_card.year)
+            payment_method_token = pm.payment_method_token
+            response = Processor.purchase(payment_method_token, money)
+        except Exception, error:
+            return {'status': 'FAILURE', 'response': error}
+        return {'status': 'SUCCESS', 'response': response}
+
+    def authorize(self, money, credit_card, options = None):
+        if not self.validate_card(credit_card):
+            raise InvalidCard("Invalid Card")
+        try:
+            from samurai.payment_method import PaymentMethod
+            from samurai.processor import Processor
+            pm = PaymentMethod.create(credit_card.number, credit_card.verification_value, credit_card.month, credit_card.year)
+            payment_method_token = pm.payment_method_token
+            response = Processor.authorize(payment_method_token, money)
+        except Exception, error:
+            return {'status': 'FAILURE', 'response': error}
+        return {'status': 'SUCCESS', 'response': response}