Added a paypal unsubscribe button. Also added a paypal banner image.

config/Common.py

@@ -55,5 +55,8 @@ settings = {
 #        "fee": 19,
 #      },
     ],
+    "luminotes.unsubscribe_button":
+      """
+      """,
   },
 }

controller/Root.py

@@ -267,6 +267,7 @@ class Root( object ):
       object_id = u"upgrade",
       contents = unicode( Upgrade_note(
         self.__settings[ u"global" ].get( u"luminotes.rate_plans", [] ),
+        self.__settings[ u"global" ].get( u"luminotes.unsubscribe_button" ),
         https_url,
         user,
       ) ),

controller/Users.py

@@ -1,4 +1,6 @@
 import re
+import urllib
+import urllib2
 import cherrypy
 from pytz import utc
 from datetime import datetime, timedelta
@@ -97,6 +99,17 @@ class Access_error( Exception ):
     )
 
 
+class Payment_error( Exception ):
+  def __init__( self, message ):
+    Exception.__init__( self, message )
+    self.__message = message
+
+  def to_dict( self ):
+    return dict(
+      error = self.__message
+    )
+
+
 def grab_user_id( function ):
   """
   A decorator to grab the current logged in user id from the cherrypy session and pass it as a
@@ -955,4 +968,29 @@ class Users( object ):
 
     self.__database.commit()
 
-#  def paypal_notify( self, **data ):
+  @expose()
+  def paypal_notify( self, **params ):
+    PAYPAL_URL = u"https://www.sandbox.paypal.com/cgi-bin/webscr"
+    #PAYPAL_URL = u"https://www.paypal.com/cgi-bin/webscr"
+
+    print params
+    params[ u"cmd" ] = u"_notify-validate"
+    params = urllib.urlencode( params )
+    
+    response = urllib2.Request( PAYPAL_URL )
+    response.add_header( u"Content-type", u"application/x-www-form-urlencoded" )
+    response_file = urllib2.urlopen( PAYPAL_URL, params )
+    result = response_file.read()
+
+    if result != u"VERIFIED":
+      raise Payment_error( result )
+
+    print "VERIFIED"
+
+    # TODO: update the database
+
+    return dict()
+
+  @expose()
+  def thanks( self ):
+    pass # TODO

view/Upgrade_note.py

@@ -2,7 +2,7 @@ from Tags import Div, Span, H3, P, A, Table, Tr, Th, Td, Br, Img
 
 
 class Upgrade_note( Span ):
-  def __init__( self, rate_plans, https_url, user ):
+  def __init__( self, rate_plans, unsubscribe_button, https_url, user ):
     MEGABYTE = 1024 * 1024
 
     Span.__init__(
@@ -65,6 +65,7 @@ class Upgrade_note( Span ):
       user and user.rate_plan > 0 and P(
         u"You're currently subscribed to Luminotes %s." % 
         rate_plans[ user.rate_plan ][ u"name" ].capitalize(),
+        unsubscribe_button,
       ) or None,
 
       H3( u"share your notebook" ),