From 85336f97775e8c1718538a9831ed8ecb72426627 Mon Sep 17 00:00:00 2001
From: Jay Shirley <j@shirley.im>
Date: Fri, 8 Aug 2014 09:11:05 -0700
Subject: [PATCH] Relax the RegEx restrictions to allow the new ICAAN TLDs.

---
 AUTHORS                | 1 +
 mongoengine/fields.py  | 4 ++--
 tests/fields/fields.py | 3 +++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/AUTHORS b/AUTHORS
index 81ec2f76..57035505 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -206,3 +206,4 @@ that much better:
  * Clay McClure (https://github.com/claymation)
  * Bruno Rocha (https://github.com/rochacbruno)
  * Norberto Leite (https://github.com/nleite)
+ * Jay Shirley (https://github.com/jshirley)
diff --git a/mongoengine/fields.py b/mongoengine/fields.py
index 7bbc221a..80421c15 100644
--- a/mongoengine/fields.py
+++ b/mongoengine/fields.py
@@ -160,8 +160,8 @@ class EmailField(StringField):
         r"(^[-!#$%&'*+/=?^_`{}|~0-9A-Z]+(\.[-!#$%&'*+/=?^_`{}|~0-9A-Z]+)*"
         # quoted-string
         r'|^"([\001-\010\013\014\016-\037!#-\[\]-\177]|\\[\001-011\013\014\016-\177])*"'
-        # domain
-        r')@(?:[A-Z0-9](?:[A-Z0-9-]{0,253}[A-Z0-9])?\.)+[A-Z]{2,6}$', re.IGNORECASE
+        # domain (max length of an ICAAN TLD is 22 characters)
+        r')@(?:[A-Z0-9](?:[A-Z0-9-]{0,253}[A-Z0-9])?\.)+[A-Z]{2,22}$', re.IGNORECASE
     )
 
     def validate(self, value):
diff --git a/tests/fields/fields.py b/tests/fields/fields.py
index 0af22a34..69d78ff8 100644
--- a/tests/fields/fields.py
+++ b/tests/fields/fields.py
@@ -2902,6 +2902,9 @@ class FieldTest(unittest.TestCase):
                            "aJIazqqWkm7.net"))
         self.assertTrue(user.validate() is None)
 
+        user = User(email="new-tld@example.technology")
+        self.assertTrue(user.validate() is None)
+
         user = User(email='me@localhost')
         self.assertRaises(ValidationError, user.validate)