-# Copyright (C) 2016-2018 all contributors <meta@public-inbox.org>
+# Copyright (C) 2016-2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# For retrieving attachments from messages in the WWW interface
use PublicInbox::MIME;
use PublicInbox::MsgIter;
+sub get_attach_i { # msg_iter callback
+ my ($part, $depth, @idx) = @{$_[0]};
+ my $res = $_[1];
+ return if join('.', @idx) ne $res->[3]; # $idx
+ $res->[0] = 200;
+ my $ct = $part->content_type;
+ $ct = parse_content_type($ct) if $ct;
+
+ # discrete == type, we remain Debian wheezy-compatible
+ if ($ct && (($ct->{discrete} || '') eq 'text')) {
+ # display all text as text/plain:
+ my $cset = $ct->{attributes}->{charset};
+ if ($cset && ($cset =~ /\A[a-zA-Z0-9_\-]+\z/)) {
+ $res->[1]->[1] .= qq(; charset=$cset);
+ }
+ } else { # TODO: allow user to configure safe types
+ $res->[1]->[1] = 'application/octet-stream';
+ }
+ $part = $part->body;
+ push @{$res->[1]}, 'Content-Length', bytes::length($part);
+ $res->[2]->[0] = $part;
+}
+
# /$LISTNAME/$MESSAGE_ID/$IDX-$FILENAME
sub get_attach ($$$) {
my ($ctx, $idx, $fn) = @_;
my $res = [ 404, [ 'Content-Type', 'text/plain' ], [ "Not found\n" ] ];
my $mime = $ctx->{-inbox}->msg_by_mid($ctx->{mid}) or return $res;
$mime = PublicInbox::MIME->new($mime);
- msg_iter($mime, sub {
- my ($part, $depth, @idx) = @{$_[0]};
- return if join('.', @idx) ne $idx;
- $res->[0] = 200;
- my $ct = $part->content_type;
- $ct = parse_content_type($ct) if $ct;
-
- # discrete == type, we remain Debian wheezy-compatible
- if ($ct && (($ct->{discrete} || '') eq 'text')) {
- # display all text as text/plain:
- my $cset = $ct->{attributes}->{charset};
- if ($cset && ($cset =~ /\A[\w-]+\z/)) {
- $res->[1]->[1] .= qq(; charset=$cset);
- }
- } else { # TODO: allow user to configure safe types
- $res->[1]->[1] = 'application/octet-stream';
- }
- $part = $part->body;
- push @{$res->[1]}, 'Content-Length', bytes::length($part);
- $res->[2]->[0] = $part;
- });
- $res;
+ $res->[3] = $idx;
+ msg_iter($mime, \&get_attach_i, $res, 1);
+ pop @$res; # cleanup before letting PSGI server see it
+ $res
}
1;