From 9658447fb313cb8bc8bf91898e5dce0bea49ba11 Mon Sep 17 00:00:00 2001
From: Joe MacMahon <joe.macmahon@evergreensmartpower.co.uk>
Date: Wed, 21 Apr 2021 13:34:55 +0100
Subject: [PATCH] Disallow prepended and appended strings to RFC 3339 date-time

Fixes validatorjs/validator.js#1653

Also adds corresponding test cases to ISO 8601 validator
---
 src/lib/isRFC3339.js | 2 +-
 test/validators.js   | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lib/isRFC3339.js b/src/lib/isRFC3339.js
index 5b3eaba85..48b025e0f 100644
--- a/src/lib/isRFC3339.js
+++ b/src/lib/isRFC3339.js
@@ -19,7 +19,7 @@ const partialTime = new RegExp(`${timeHour.source}:${timeMinute.source}:${timeSe
 const fullDate = new RegExp(`${dateFullYear.source}-${dateMonth.source}-${dateMDay.source}`);
 const fullTime = new RegExp(`${partialTime.source}${timeOffset.source}`);
 
-const rfc3339 = new RegExp(`${fullDate.source}[ tT]${fullTime.source}`);
+const rfc3339 = new RegExp(`^${fullDate.source}[ tT]${fullTime.source}$`);
 
 export default function isRFC3339(str) {
   assertString(str);
diff --git a/test/validators.js b/test/validators.js
index 31b7f960e..56e581d39 100644
--- a/test/validators.js
+++ b/test/validators.js
@@ -8925,6 +8925,8 @@ describe('Validators', () => {
     '2010-02-18T16:23.33.600',
     '2010-02-18T16,25:23:48,444',
     '2010-13-1',
+    'nonsense2021-01-01T00:00:00Z',
+    '2021-01-01T00:00:00Znonsense',
   ];
 
   it('should validate ISO 8601 dates', () => {
@@ -9107,6 +9109,8 @@ describe('Validators', () => {
         '2009-05-00 14:39:22+0600',
         '2009-00-1 14:39:22Z',
         '2009-05-19T14:39:22',
+        'nonsense2021-01-01T00:00:00Z',
+        '2021-01-01T00:00:00Znonsense',
       ],
     });
   });