Merge pull request #2729 from alphagov/validate_send_file_by_email_contact_deets

All services can send files by email if they have set contact_link

app/notifications/validators.py

@@ -85,7 +85,16 @@ def service_has_permission(notify_type, permissions):
 def check_service_has_permission(notify_type, permissions):
     if not service_has_permission(notify_type, permissions):
         raise BadRequestError(message="Service is not allowed to send {}".format(
-            get_public_notify_type_text(notify_type, plural=True)))
+            get_public_notify_type_text(notify_type, plural=True)
+        ))
+
+
+def check_if_service_can_send_files_by_email(service_contact_link, service_id):
+    if not service_contact_link:
+        raise BadRequestError(
+            message=f"Send files by email has not been set up - add contact details for your service at "
+                    f"{current_app.config['ADMIN_BASE_URL']}/services/{service_id}/service-settings/send-files-by-email"
+        )
 
 
 def check_service_can_schedule_notification(permissions, scheduled_for):

app/v2/notifications/post_notifications.py

@@ -16,7 +16,6 @@ from app.models import (
     SMS_TYPE,
     EMAIL_TYPE,
     LETTER_TYPE,
-    UPLOAD_DOCUMENT,
     PRIORITY,
     KEY_TYPE_TEST,
     KEY_TYPE_TEAM,
@@ -35,13 +34,14 @@ from app.notifications.process_notifications import (
     simulated_recipient
 )
 from app.notifications.validators import (
-    validate_and_format_recipient,
+    check_if_service_can_send_files_by_email,
     check_rate_limiting,
     check_service_can_schedule_notification,
-    check_service_has_permission,
-    validate_template,
     check_service_email_reply_to_id,
-    check_service_sms_sender_id
+    check_service_has_permission,
+    check_service_sms_sender_id,
+    validate_and_format_recipient,
+    validate_template,
 )
 from app.schema_validation import validate
 from app.v2.errors import BadRequestError
@@ -235,7 +235,10 @@ def process_document_uploads(personalisation_data, service, simulated=False):
 
     personalisation_data = personalisation_data.copy()
 
-    check_service_has_permission(UPLOAD_DOCUMENT, authenticated_service.permissions)
+    check_if_service_can_send_files_by_email(
+        service_contact_link=authenticated_service.contact_link,
+        service_id=authenticated_service.id
+    )
 
     for key in file_keys:
         if simulated: