Add inbound sms permission check

app/notifications/receive_notifications.py

@@ -9,7 +9,7 @@ from app.celery import tasks
 from app.config import QueueNames
 from app.dao.services_dao import dao_fetch_services_by_sms_sender
 from app.dao.inbound_sms_dao import dao_create_inbound_sms
-from app.models import InboundSms
+from app.models import InboundSms, INBOUND_SMS_TYPE, SMS_TYPE
 from app.errors import register_errors
 from app.utils import convert_bst_to_utc
 
@@ -34,8 +34,8 @@ def receive_mmg_sms():
 
     potential_services = fetch_potential_services(inbound_number, 'mmg')
     if not potential_services:
-        # since this is an issue with our service <-> number mapping, we should still tell MMG that we received
-        # successfully
+        # since this is an issue with our service <-> number mapping, or no inbound_sms service permission
+        # we should still tell MMG that we received it successfully
         return 'RECEIVED', 200
 
     statsd_client.incr('inbound.mmg.successful')
@@ -128,6 +128,13 @@ def fetch_potential_services(inbound_number, provider_name):
         ))
         statsd_client.incr('inbound.{}.failed'.format(provider_name))
         return False
+
+    str_permissions = [p.permission for p in potential_services[0].permissions]
+    if set([INBOUND_SMS_TYPE, SMS_TYPE]).issubset(set(str_permissions)) is False:
+        current_app.logger.error(
+            'Service "{}" does not allow inbound SMS'.format(potential_services[0].id))
+        return False
+
     return potential_services