From 744db7c9e5fc89d227c1beb981d01898ce478e41 Mon Sep 17 00:00:00 2001
From: David Flatz
Date: Fri, 29 Jul 2022 14:18:56 +0200
Subject: improve validation and escaping of e-mail addresses: use same method
 for validation in check_email and address_error; encode and validate IDNs;
 make (more) robust functions to split address lists and emails

---
 test/it_mail.t | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

(limited to 'test')

diff --git a/test/it_mail.t b/test/it_mail.t
index 7e892c2..6aefd84 100755
--- a/test/it_mail.t
+++ b/test/it_mail.t
@@ -56,6 +56,12 @@ is(
 	"Don't remove quoting characters from realname when it contains a quotable character"
 );
 
+is(
+	$mail->addrlist_escape('"Alfred E. Neuman" <t€st@sör.ch>', true),
+	'"Alfred E. Neuman" <t€st@xn--sr-fka.ch>',
+	"Convert domain in email to idn version"
+);
+
 $mail = new it_mail([
 	'From' => 'Someone Ïmportant <ïmportant@search.ch>',
 	'To' => 'éxample@example.com, example@example.com, Sömeone Ëlse <sömeone@example.com>, "Alfred E. Neuman" <neuman@example.com>, "Schmitt, Sören" <schmitt@example.com>',
@@ -95,10 +101,23 @@ is(
 );
 
 is(
-	it_mail::address_error('neuman@example.com, <neuman@example.com>, "Neuman, Alfred E." <neuman@example.com>, aneuman, "<neuman@example>" <neuman@example.com>', " neumann@example.com"),
+	it_mail::address_error('neuman@example.com, <neuman@example.com>, "Neuman, Alfred E." <neuman@example.com>, aneuman, "<neuman@example>" <neuman@example.com>, " neumann@example.com", "www@search.ch".foo.bar@local.ch, test@sör.ch'),
 	null,
 	"Accept valid e-mail addresses"
 );
 
-foreach (['neuman@example', '"neuman@example.com" <neuman@example>', '<neuma@example.com'] as $email)
+foreach (['neuman@example', '"neuman@example.com" <neuman@example>', '<neuma@example.com', 'shaqroot.@yahoo.com'] as $email)
+{
 	isnt(it_mail::address_error($email), null, "Reject invalid e-mail address $email");
+	foreach (it_mail::addrlist_split($email) as list($dummy, $email))
+		is(it_mail::check_email($email), IT_MAIL_CHECKEMAIL_INVALID, "check_email rejects invalid email address $email too");
+}
+
+is(it_mail::check_email('test@sör.ch'), IT_MAIL_CHECKEMAIL_OK, "check_email accepts valid email address with idn domain");
+
+is(it_mail::email_split('test@sör.ch'), ['test', 'sör.ch'], 'email_split test@sör.ch');
+is(it_mail::email_split('"test@local.ch".foo.bar@search.ch'), ['"test@local.ch".foo.bar', 'search.ch'], 'email_split "test@local.ch".foo.bar@search.ch');
+is(it_mail::email_split('aneuman'), ['aneuman', ''], 'email_split aneuman');
+
+is(it_mail::email_escape('test@sör.ch'), 'test@xn--sr-fka.ch', 'idn encode domain sör.ch');
+is(it_mail::email_escape('أحمد@مثال.آزمایشی'), 'أحمد@xn--mgbh0fb.xn--hgbk6aj7f53bba', 'idn encode domain ﻢﺛﺎﻟ.ﺁﺰﻣﺎﯿﺸﯾ');
-- 
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