webhooks/stripe: Support customer.subscription.update events.

zerver/webhooks/stripe/fixtures/customer_subscription_updated.json

@@ -0,0 +1,129 @@
+{
+    "created":1326853478,
+    "livemode":false,
+    "id":"customer.subscription.updated_00000000000000",
+    "type":"customer.subscription.updated",
+    "object":"event",
+    "request":null,
+    "pending_webhooks":1,
+    "api_version":"2018-02-28",
+    "data":{
+        "object":{
+            "id":"sub_00000000000000",
+            "object":"subscription",
+            "application_fee_percent":null,
+            "billing":"charge_automatically",
+            "billing_cycle_anchor":1542644734,
+            "cancel_at_period_end":false,
+            "canceled_at":null,
+            "created":1542644734,
+            "current_period_end":1545236734,
+            "current_period_start":1542644734,
+            "customer":"cus_00000000000000",
+            "days_until_due":null,
+            "default_source":null,
+            "discount":null,
+            "ended_at":null,
+            "items":{
+                "object":"list",
+                "data":[
+                    {
+                        "id":"si_00000000000000",
+                        "object":"subscription_item",
+                        "created":1542644735,
+                        "metadata":{
+
+                        },
+                        "plan":{
+                            "id":"gold_00000000000000",
+                            "object":"plan",
+                            "active":true,
+                            "aggregate_usage":null,
+                            "amount":2000,
+                            "billing_scheme":"per_unit",
+                            "created":1394782612,
+                            "currency":"cad",
+                            "interval":"month",
+                            "interval_count":1,
+                            "livemode":false,
+                            "metadata":{
+
+                            },
+                            "nickname":null,
+                            "product":"prod_00000000000000",
+                            "tiers":null,
+                            "tiers_mode":null,
+                            "transform_usage":null,
+                            "trial_period_days":null,
+                            "usage_type":"licensed"
+                        },
+                        "quantity":1,
+                        "subscription":"sub_00000000000000"
+                    }
+                ],
+                "has_more":false,
+                "total_count":1,
+                "url":"/v1/subscription_items?subscription=sub_E0G5y2VdPVOB4o"
+            },
+            "livemode":false,
+            "metadata":{
+
+            },
+            "plan":{
+                "id":"gold_00000000000000",
+                "object":"plan",
+                "active":true,
+                "aggregate_usage":null,
+                "amount":2000,
+                "billing_scheme":"per_unit",
+                "created":1394782612,
+                "currency":"cad",
+                "interval":"month",
+                "interval_count":1,
+                "livemode":false,
+                "metadata":{
+
+                },
+                "nickname":null,
+                "product":"prod_00000000000000",
+                "tiers":null,
+                "tiers_mode":null,
+                "transform_usage":null,
+                "trial_period_days":null,
+                "usage_type":"licensed"
+            },
+            "quantity":1,
+            "start":1542644734,
+            "status":"active",
+            "tax_percent":null,
+            "trial_end":null,
+            "trial_start":null
+        },
+        "previous_attributes":{
+            "plan":{
+                "id":"OLD_00000000000000",
+                "object":"plan",
+                "active":true,
+                "aggregate_usage":null,
+                "amount":2000,
+                "billing_scheme":"per_unit",
+                "created":1542644734,
+                "currency":"cad",
+                "interval":"month",
+                "interval_count":1,
+                "livemode":false,
+                "metadata":{
+
+                },
+                "nickname":null,
+                "product":"prod_00000000000000",
+                "tiers":null,
+                "tiers_mode":null,
+                "transform_usage":null,
+                "trial_period_days":null,
+                "usage_type":"licensed",
+                "name":"Old plan"
+            }
+        }
+    }
+}

zerver/webhooks/stripe/tests.py

@@ -81,6 +81,13 @@ class StripeHookTests(WebhookTestCase):
         self.send_and_test_stream_message('customer_subscription_deleted', expected_topic, expected_message,
                                           content_type="application/x-www-form-urlencoded")
 
+    def test_customer_subscription_updated(self) -> None:
+        expected_topic = u"Customer sub_00000000000000"
+        expected_message = u"The customer subscription with id **[sub_00000000000000](https://dashboard.stripe.com/subscriptions/sub_00000000000000)** was updated."
+        self.send_and_test_stream_message('customer_subscription_updated',
+                                          expected_topic, expected_message,
+                                          content_type="application/x-www-form-urlencoded")
+
     def test_customer_subscription_trial_will_end(self) -> None:
         expected_topic = u"Customer sub_00000000000000"
         expected_message = u"The customer subscription trial with id **[sub_00000000000000](https://dashboard.stripe.com/subscriptions/sub_00000000000000)** will end in 3 days."

zerver/webhooks/stripe/view.py

@@ -80,7 +80,7 @@ def api_stripe_webhook(request: HttpRequest, user_profile: UserProfile,
                 body_template = "The customer subscription with id **[{id}]({link})** was deleted."
                 body = body_template.format(id=object_id, link=link)
 
-            else:  # customer.subscription.trial_will_end
+            elif event_type == "customer.subscription.trial_will_end":
                 DAY = 60 * 60 * 24  # seconds in a day
                 # days_left should always be three according to
                 # https://stripe.com/docs/api/python#event_types, but do the
@@ -89,7 +89,9 @@ def api_stripe_webhook(request: HttpRequest, user_profile: UserProfile,
                 body_template = ("The customer subscription trial with id"
                                  " **[{id}]({link})** will end in {days} days.")
                 body = body_template.format(id=object_id, link=link, days=days_left)
-
+            elif event_type == "customer.subscription.updated":
+                body_template = "The customer subscription with id **[{id}]({link})** was updated."
+                body = body_template.format(id=object_id, link=link)
         else:
             link = "https://dashboard.stripe.com/customers/{}".format(object_id)
             body_template = "{beginning} customer with id **[{id}]({link})** {rest}."