bug: Serialize Decimal correctly for ios aps

closes #899

autopush/router/apns2.py

@@ -1,5 +1,6 @@
 import json
 from collections import deque
+from decimal import Decimal
 
 import hyper.tls
 from hyper import HTTP20Connection
@@ -21,6 +22,16 @@
 APNS_PRIORITY_LOW = '5'
 
 
+class ComplexEncoder(json.JSONEncoder):
+    def default(self, obj):
+        if isinstance(obj, Decimal):
+            return int(float(obj.to_integral_value()))
+        # for most data types, this function isn't called.
+        # the following is added for safety, but should not
+        # be required.
+        return json.JSONEncoder.default(self, obj)  # pragma nocover
+
+
 class APNSException(Exception):
     pass
 
@@ -104,7 +115,7 @@ def send(self, router_token, payload, apns_id,
         :type exp: timestamp
 
         """
-        body = json.dumps(payload)
+        body = json.dumps(payload, cls=ComplexEncoder)
         priority = APNS_PRIORITY_IMMEDIATE if priority else APNS_PRIORITY_LOW
         # NOTE: Hyper requires that all header values be strings. 'Priority'
         # is a integer string, which may be "simplified" and cause an error.

autopush/tests/test_router.py

@@ -3,6 +3,7 @@
 import uuid
 import time
 import json
+import decimal
 
 from autopush.utils import WebPushNotification
 from mock import Mock, PropertyMock, patch
@@ -195,6 +196,25 @@ def test_route_notification(self):
             "con": "aesgcm",
         })
 
+    @inlineCallbacks
+    def test_route_notification_complex(self):
+        router_data = dict(
+            router_data=dict(token="connect_data",
+                             rel_channel="firefox",
+                             aps=dict(string="String",
+                                      array=['a', 'b', 'c'],
+                                      number=decimal.Decimal(4))))
+        result = yield self.router.route_notification(self.notif,
+                                                      router_data)
+        yield self._waitfor(lambda:
+                            self.mock_connection.request.called is True)
+        ok_(isinstance(result, RouterResponse))
+        ok_(self.mock_connection.request.called)
+        body = self.mock_connection.request.call_args[1]
+        body_json = json.loads(body['body'])
+        eq_(body_json['aps']['number'], 4)
+        eq_(body_json['aps']['string'], 'String')
+
     @inlineCallbacks
     def test_route_low_priority_notification(self):
         """low priority and empty apns_ids are not yet used, but may feature