Email addresses are considered valid even if they have any of the following types of w

You can do in your project: <div class="snippet-clipboard-content notranslate posi

Looking at the <a href="https://tools.ietf.org/html/rfc6531#section-3.2" rel="nofollow

Thanks <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-u

'email' format accepts email addresses with several types of whitespace. about z-schema HOT 3 CLOSED

shane-tomlinson commented on September 14, 2024

'email' format accepts email addresses with several types of whitespace.

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Comments (3)

zaggino commented on September 14, 2024 1

You can do in your project:

const validator = require('validator'); // already imported by z-schema so you don't need it as dependency in package.json
ZSchema.registerFormat(
    "email",
    function (email) {
        if (typeof email !== "string") {
            return true;
        }
        return validator.isEmail(email, { "require_tld": true, "allow_utf8_local_part": false });
    }
);

I wouldn't modify the default behaviour unless we need to match the official test suite (maybe open a PR there?): https://github.com/json-schema-org/JSON-Schema-Test-Suite/blob/master/tests/draft4/format.json

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shane-tomlinson commented on September 14, 2024

Looking at the IETF spec about internationalized email addresses, email addresses are allowed to contain utf-8 characters:

An SMTP server that announces the SMTPUTF8 extension MUST be prepared
to accept a UTF-8 string [RFC3629] in any position in which RFC 5321
specifies that a can appear. Although the characters in
the are permitted to contain non-ASCII characters, the
actual parsing of the and the delimiters used are
unchanged from the base email specification [RFC5321].

So perhaps this issue is invalid, and the latest specs are being followed. Is there any value in having two modes for email validation, one that accepts utf-8 characters in the local part, and another that does not?

diff --git a/src/FormatValidators.js b/src/FormatValidators.js
index 3406052..8d0aa29 100644
--- a/src/FormatValidators.js
+++ b/src/FormatValidators.js
@@ -47,7 +47,7 @@ var FormatValidators = {
         if (typeof email !== "string") {
             return true;
         }
-        return validator.isEmail(email, { "require_tld": true });
+        return validator.isEmail(email, { "require_tld": true, "allow_utf8_local_part": false });
     },
     "hostname": function (hostname) {
         if (typeof hostname !== "string") {

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shane-tomlinson commented on September 14, 2024

Thanks @zaggino - closing this issue!

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