Add Lets Encrypt report

mysite/code/Report/LetsEncryptReport.php

@@ -0,0 +1,37 @@
+<?php
+
+/**
+ * Report for listing domains who are using Let's Encrypt
+ */
+class LetsEncryptReport extends SS_Report
+{
+    public function title()
+    {
+        return 'Domains using Let\'s Encrypt';
+    }
+
+    public function description()
+    {
+        return 'Lists domains that are using Let\'s Encrypt for their certificates';
+    }
+
+    public function sourceRecords($params = null)
+    {
+        return Domain::get()
+                     ->filter(['Certificates.Issuer:PartialMatch' => 'Let\'s Encrypt'])
+                     ->sort('Domain');
+    }
+
+    public function columns()
+    {
+        return [
+            'Domain' => 'Domain',
+            'CurrentCertificate.Name' => 'Certificate Name',
+            'CurrentCertificate.Issuer' => 'Issuer',
+            'CurrentCertificate.ValidFrom' => 'Valid From',
+            'CurrentCertificate.ValidTo' => 'Valid Until',
+            'ErrorCode' => 'Error Code',
+            'ErrorMessage' => 'Error Message',
+        ];
+    }
+}