rough skeleton of the client payment challenge class

trustify/client/challenge.py

@@ -3,7 +3,7 @@ from trustify.client import logger
 class Challenge(object):
     def __init__(self, configurator):
         self.config = configurator
-    def perform(self):
+    def perform(self, quiet=True):
         logger.error("Error - base class challenge.perform()")
     def clean(self):
         logger.error("Error - base class challenge.clean()")

trustify/client/payment_challenge.py

@@ -0,0 +1,34 @@
+from trustify.client.challenge import Challenge
+from trustify.client import logger
+
+# TODO: How is this determined?
+curses = True;
+
+############################################################
+# Possible addition to challenge structure: priority parameter
+# If only DVSNI and Payment are required, the user might want
+# to be validated before submitting payment, allowing the user
+# to gain confidence in the system.  If things do go poorly the 
+# user has less invested in that particular session/transaction. 
+#############################################################
+
+class Payment_Challenge(Challenge):
+    # Possible reasons: Wildcard Certificates, EV certificates
+    # Malware scanning services, Organization or Identity validated certs
+    def __init__(self, url, reason="Specialty Certificate"):
+        self.url = url
+    def perform(self, quiet=True):
+        if curses:
+            dialog.Dialog().msgbox("You are buying " + formatted_reasons() + " You will need to visit " + self.url + " to submit your payment\nPlease click continue once your payment has been submitted", width=70)
+        return True
+    
+    def redo(self, quiet=True):
+        """
+        Some other message called when challenge verification wasn't successful
+        This should probably be a standard challenge function for all failed
+        challenge attempts
+        """
+        if curses:
+            dialog.Dialog().msgbox("The CA did not record your payment, please visit " + self.url + " for more information or to finish processing your transaction.", width=70)
+
+        return True