* [PATCH] content_digest_dbg: handle empty inputs
@ 2023-04-28 9:43 Eric Wong
0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2023-04-28 9:43 UTC (permalink / raw)
To: meta
It's possible that we hit messages or attachments with empty
bodies, so avoid doing a regexp match on an uninitialized variable.
---
lib/PublicInbox/ContentDigestDbg.pm | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/PublicInbox/ContentDigestDbg.pm b/lib/PublicInbox/ContentDigestDbg.pm
index 31d0f707..853624f1 100644
--- a/lib/PublicInbox/ContentDigestDbg.pm
+++ b/lib/PublicInbox/ContentDigestDbg.pm
@@ -11,7 +11,7 @@ sub new { bless [ PublicInbox::SHA->new(256), $_[1] ], __PACKAGE__ }
sub add {
$_[0]->[0]->add($_[1]);
my @dbg = split(/^/sm, $_[1]);
- if ($dbg[0] =~ /\A(To|Cc)\0/) { # fold excessively long lines
+ if (@dbg && $dbg[0] =~ /\A(To|Cc)\0/) { # fold excessively long lines
@dbg = map { split(/,/s, $_) } @dbg;
}
print { $_[0]->[1] } Dumper(\@dbg) or die "print $!";
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