From 673aee1e7af3665461e66faf86fe2f41a2bbaf7a Mon Sep 17 00:00:00 2001
From: Danny Moesch <danny.moesch@icloud.com>
Date: Sun, 11 Mar 2018 12:59:10 +0100
Subject: [PATCH] Protect YAML parser against empty input string

---
 passKit/Models/Password.swift | 1 +
 1 file changed, 1 insertion(+)

diff --git a/passKit/Models/Password.swift b/passKit/Models/Password.swift
index d5828ae..c23de5a 100644
--- a/passKit/Models/Password.swift
+++ b/passKit/Models/Password.swift
@@ -119,6 +119,7 @@ public class Password {
     }
 
     private func getAdditionalFields(fromYaml: String) throws {
+        guard !fromYaml.isEmpty else { return }
         let yamlFile = try Yams.load(yaml: fromYaml) as! [String: Any]
         additions.append(contentsOf: yamlFile.map { ($0, String(describing: $1)) })
     }