user/dev discussion of public-inbox itself
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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH] view: handle missing Content-Type in message
Date: Thu,  8 Sep 2016 19:53:27 +0000
Message-ID: <20160908195327.28040-1-e@80x24.org> (raw)

Email::MIME internally assumes "text/plain" for messages
missing a Content-Type, but does not expose that in the
Email::MIME::content_type API method.  We must assume it
ourselves to avoid uninitialized value warnings for the
rare (nowadays) MUAs which do not set it.
---
 lib/PublicInbox/View.pm | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index 6997c1c..9359209 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -413,7 +413,6 @@ sub attach_link ($$$$;$) {
 	my $nl = $idx[-1] > 1 ? "\n" : '';
 	my $idx = join('.', @idx);
 	my $size = bytes::length($part->body);
-	$ct ||= 'text/plain';
 
 	# hide attributes normally, unless we want to aid users in
 	# spotting MUA problems:
@@ -444,10 +443,10 @@ sub attach_link ($$$$;$) {
 sub add_text_body {
 	my ($upfx, $p) = @_; # from msg_iter: [ Email::MIME, depth, @idx ]
 	my ($part, $depth, @idx) = @$p;
-	my $ct = $part->content_type;
+	my $ct = $part->content_type || 'text/plain';
 	my $fn = $part->filename;
 
-	if (defined $ct && $ct =~ m!\btext/x?html\b!i) {
+	if ($ct =~ m!\btext/x?html\b!i) {
 		return attach_link($upfx, $ct, $p, $fn);
 	}
 
-- 
EW


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