From 699137a97cc7247c43b4e805d158897a5d146cea Mon Sep 17 00:00:00 2001
From: Christian Stein <cstein@netways.de>
Date: Fri, 27 Mar 2020 16:36:25 +0100
Subject: [PATCH] Adds support to securely fetch elements from hashtables with
 default values

---
 lib/core/tools/Get-IcingaHashtableItem.psm1 | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 lib/core/tools/Get-IcingaHashtableItem.psm1

diff --git a/lib/core/tools/Get-IcingaHashtableItem.psm1 b/lib/core/tools/Get-IcingaHashtableItem.psm1
new file mode 100644
index 0000000..96f0eef
--- /dev/null
+++ b/lib/core/tools/Get-IcingaHashtableItem.psm1
@@ -0,0 +1,18 @@
+function Get-IcingaHashtableItem()
+{
+    param(
+        $Hashtable,
+        $Key,
+        $NullValue = $null
+    );
+
+    if ($null -eq $Hashtable) {
+        return $NullValue;
+    }
+
+    if ($Hashtable.ContainsKey($Key) -eq $FALSE) {
+        return $NullValue;
+    }
+
+    return $Hashtable[$Key];
+}