From e4e5e5931bef673da6e3394e76f03b6a4d9b7036 Mon Sep 17 00:00:00 2001
From: Dominique Fournier <dominique@fournier38.fr>
Date: Mon, 29 May 2017 19:08:27 +0000
Subject: [PATCH] smtp: throw an exception if the TO is not defined

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@3735 bf3deb0d-5f1a-0410-827f-c0cc1f45334c
---
 smtp.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/smtp.php b/smtp.php
index 57b1901..aa5d7a9 100644
--- a/smtp.php
+++ b/smtp.php
@@ -173,6 +173,9 @@ class smtp
     $from = $this->cleanMail ($from);
     if (is_string ($to))
       $to = array ($to);
+    if (! is_array ($to) || count ($to) === 0)
+      throw new \Exception ("Can't send mail: no valid recipient provided",
+        500);
     $this->putLine ("MAIL FROM: $from\r\n");
     foreach ($to as $t)
     {