[PATCH pmg-api v2 2/2] pmg-smtp-filter: log-headers: trim trailing whitespace

[Stoiko Ivanov <s.ivanov@proxmox.com>]

Reported-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
---
 src/bin/pmg-smtp-filter | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/bin/pmg-smtp-filter b/src/bin/pmg-smtp-filter
index 7f9cdb85..a746a074 100755
--- a/src/bin/pmg-smtp-filter
+++ b/src/bin/pmg-smtp-filter
@@ -714,7 +714,9 @@ sub handle_smtp {
                 $value = PMG::Utils::decode_rfc1522($value);
                 # remove non-printable and Unicode format chars to avoid log injection and spoofing
                 $value =~ s/[^\p{XPosixPrint}]|\p{Cf}/ /g;
-                return encode('UTF-8', substr($value, 0, 512));
+                $value = substr($value, 0, 512);
+                $value =~ s/^\s+|\s+$//g;;
+                return encode('UTF-8', $value);
             };
             # separate line on purpose, so the log-tracker does not parse it as an event
             $self->log(
-- 
2.47.3