config flag for turning off inbound SMS replies

app/config.py

@@ -113,6 +113,9 @@ class Config(object):
     # Firetext API Key
     FIRETEXT_API_KEY = os.environ.get("FIRETEXT_API_KEY", "placeholder")
     FIRETEXT_INTERNATIONAL_API_KEY = os.environ.get("FIRETEXT_INTERNATIONAL_API_KEY", "placeholder")
+    
+    # Whether to ignore POSTs from SNS for replies to SMS we sent
+    RECEIVE_INBOUND_SMS = False
 
     # Use notify.sandbox.10x sending domain unless overwritten by environment
     NOTIFY_EMAIL_DOMAIN = 'notify.sandbox.10x.gsa.gov'

app/notifications/receive_notifications.py

@@ -38,6 +38,12 @@ def receive_sns_sms():
     }
     """
     
+    # Whether or not to ignore inbound SMS replies
+    if not current_app.config['RECEIVE_INBOUND_SMS']:
+        return jsonify(
+            result="success", message="SMS-SNS callback succeeded"
+        ), 200
+    
     try:
         post_data = sns_notification_handler(request.data, request.headers)
     except Exception as e: