From b1548bbbedbcd9208a3d2560cee291fa07daea17 Mon Sep 17 00:00:00 2001
From: Tomas Cohen Arazi <tomascohen@theke.io>
Date: Fri, 20 Aug 2021 18:23:30 -0300
Subject: [PATCH 2/6] Bug 28870: Use Email::Address to validate email addresses
Content-Type: text/plain; charset="utf-8"

This patch adds a new dependency, Email::Address. It is used in
Koha::Email to replace the current use of Email::Valid, which proved to
be problematic when it comes to UTF-8 characters.

Email::Address provides suitable regexes that -when used- keep our
tests passing, but also deal better with UTF-8 data.

To test:
1. Apply the regression tests patch
2. Notice the only change is that it tweaks a couple addresses so they
   contain umlauts and also have the "Description <address>" format that
   is used when sending carts.
3. Run:
   $ kshell
  k$ prove t/Koha/Email.t
=> FAIL: Tests fail! Things die because Email::Valid doesn't like the
   from we passed.
4. Run:
   $ sudo apt install libemail-address-perl
5. Apply this patch
6. Repeat 3
=> SUCCESS: Tests pass!
7. Try what is described in comment 1
=> SUCCESS: Things are back to normal
8. Sign off :-D
9. Send cookies

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
---
 Koha/Email.pm | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/Koha/Email.pm b/Koha/Email.pm
index 9c077a6b84..51b39d218b 100644
--- a/Koha/Email.pm
+++ b/Koha/Email.pm
@@ -20,7 +20,7 @@ package Koha::Email;
 
 use Modern::Perl;
 
-use Email::Valid;
+use Email::Address;
 use Email::MessageID;
 use List::Util qw(pairs);
 
@@ -78,7 +78,7 @@ sub create {
     my $args = {};
     $args->{from} = $params->{from} || C4::Context->preference('KohaAdminEmailAddress');
     Koha::Exceptions::BadParameter->throw("Invalid 'from' parameter: ".$args->{from})
-        unless Email::Valid->address( -address => $args->{from}, -fqdn => 0 ); # from is mandatory
+        unless $args->{from} =~ m/$Email::Address::mailbox/; # from is mandatory
 
     $args->{subject} = $params->{subject} // '';
 
@@ -90,7 +90,7 @@ sub create {
     }
 
     Koha::Exceptions::BadParameter->throw("Invalid 'to' parameter: ".$args->{to})
-        unless Email::Valid->address( -address => $args->{to}, -fqdn => 0 ); # to is mandatory
+        unless $args->{to} =~ m/$Email::Address::mailbox/; # to is mandatory
 
     my $addresses = {};
     $addresses->{reply_to} = $params->{reply_to};
@@ -111,10 +111,8 @@ sub create {
     foreach my $address ( keys %{$addresses} ) {
         Koha::Exceptions::BadParameter->throw(
             "Invalid '$address' parameter: " . $addresses->{$address} )
-          if $addresses->{$address} and !Email::Valid->address(
-            -address => $addresses->{$address},
-            -fqdn    => 0
-          );
+          if $addresses->{$address}
+            and $addresses->{$address} !~ m/$Email::Address::mailbox/;
     }
 
     $args->{cc} = $addresses->{cc}
-- 
2.25.1