From 3178cc0a395f35acc6c400bfd1895aaeb741b8aa Mon Sep 17 00:00:00 2001
From: Dominik Csapak <d.csapak@proxmox.com>
Date: Thu, 8 Aug 2019 10:49:13 +0200
Subject: [PATCH] Who: Domain: improve speed

a split is about 20% faster than doing a regex match here, for
a typical email address and domain
(benchmarked with Benchmark::cmpthese)

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Tested-by: Stoiko Ivanov <s.ivanov@proxmox.com>
---
 src/PMG/RuleDB/Domain.pm | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/PMG/RuleDB/Domain.pm b/src/PMG/RuleDB/Domain.pm
index c3530ea..9d60473 100644
--- a/src/PMG/RuleDB/Domain.pm
+++ b/src/PMG/RuleDB/Domain.pm
@@ -31,11 +31,12 @@ sub new {
 sub who_match {
     my ($self, $addr) = @_;
 
-    $addr =~ m/^.+@(.+)$/;
+    my @parts = split('@', $addr);
 
-    return undef if !defined($1);
+    return undef if scalar(@parts) < 2;
 
-    return (lc ($1) eq lc ($self->address));
+    my $domain = $parts[-1]; # last element
+    return lc $domain eq lc $self->{address};
 }
 
 sub short_desc {
-- 
2.39.2