Upgrade link in alert emails.

hc/api/tests/test_notify.py

@@ -1,6 +1,7 @@
 import json
 
 from django.core import mail
+from django.test import override_settings
 from hc.api.models import Channel, Check, Notification
 from hc.test import BaseTestCase
 from mock import patch
@@ -12,6 +13,7 @@ class NotifyTestCase(BaseTestCase):
     def _setup_data(self, kind, value, status="down", email_verified=True):
         self.check = Check()
         self.check.status = status
+        self.check.user = self.alice
         self.check.save()
 
         self.channel = Channel(user=self.alice)
@@ -127,6 +129,23 @@ class NotifyTestCase(BaseTestCase):
         self.assertEqual(n.error, "Email not verified")
         self.assertEqual(len(mail.outbox), 0)
 
+    @override_settings(USE_PAYMENTS=True)
+    def test_email_contains_upgrade_notice(self):
+        self._setup_data("email", "alice@example.org", status="up")
+        self.profile.team_access_allowed = False
+        self.profile.save()
+
+        self.channel.notify(self.check)
+
+        n = Notification.objects.get()
+        self.assertEqual(n.error, "")
+
+        # Check is up, payments are enabled, and the user does not have team
+        # access: the email should contain upgrade note
+        message = mail.outbox[0]
+        html, _ = message.alternatives[0]
+        assert "/pricing/" in html
+
     @patch("hc.api.transports.requests.request")
     def test_pd(self, mock_post):
         self._setup_data("pd", "123")

hc/api/transports.py

@@ -46,10 +46,16 @@ class Email(Transport):
         if not self.channel.email_verified:
             return "Email not verified"
 
+        show_upgrade_note = False
+        if settings.USE_PAYMENTS and check.status == "up":
+            if not check.user.profile.team_access_allowed:
+                show_upgrade_note = True
+
         ctx = {
             "check": check,
             "checks": self.checks(),
-            "now": timezone.now()
+            "now": timezone.now(),
+            "show_upgrade_note": show_upgrade_note
         }
         emails.alert(self.channel.value, ctx)
 

templates/emails/alert-body-html.html

@@ -13,5 +13,12 @@
 
 {% include "emails/summary-html.html" %}
 
+{% if show_upgrade_note %}
+<p><strong>P.S.</strong>
+Find this service useful? Support it by upgrading to
+a <a href="https://healthchecks.io/pricing/">premium account</a>!
+</p>
+{% endif %}
+
 <p>Thanks,<br>The Healthchecks<span>.</span>io Team</p>
 {% endblock %}