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49 my ( $ticket, $trans, $attach, $filename );
50 my $arg = $m->dhandler_arg; # get rest of path
51 if ( $arg =~ m{^(\d+)/(\d+)} ) {
56 Abort("Corrupted attachment URL.");
58 my $AttachmentObj = RT::Attachment->new( $session{'CurrentUser'} );
59 $AttachmentObj->Load($attach) || Abort("Attachment '$attach' could not be loaded");
61 unless ( $AttachmentObj->id ) {
62 Abort("Bad attachment id. Couldn't find attachment '$attach'\n");
64 unless ( $AttachmentObj->TransactionId() == $trans ) {
65 Abort("Bad transaction number for attachment. $trans should be". $AttachmentObj->TransactionId() . "\n");
68 my $content = $AttachmentObj->OriginalContent;
69 my $content_type = $AttachmentObj->ContentType || 'text/plain';
71 my $attachment_regex = qr{^(image/svg\+xml|application/pdf)}i;
72 if ( RT->Config->Get('AlwaysDownloadAttachments') || ($content_type =~ $attachment_regex) ) {
73 $r->headers_out->{'Content-Disposition'} = "attachment";
75 elsif ( !RT->Config->Get('TrustHTMLAttachments') ) {
76 my $text_plain_regex = qr{^(text/html|application/xhtml\+xml|text/xml|application/xml)}i;
77 $content_type = 'text/plain' if ( $content_type =~ $text_plain_regex );
79 elsif (lc $content_type eq 'text/html') {
80 # If we're trusting and serving HTML for display not download, try to do
81 # inline <img> rewriting to be extra helpful.
82 my $count = RT::Interface::Web::RewriteInlineImages(
84 Attachment => $AttachmentObj,
86 RT->Logger->debug("Rewrote $count CID images when displaying original HTML attachment #$attach");
89 my $enc = $AttachmentObj->OriginalEncoding || 'utf-8';
90 my $iana = Encode::find_encoding($enc);
91 $iana = $iana ? $iana->mime_name : $enc;
94 my $mimetype = MIME::Types->new->type($content_type);
95 unless ( $mimetype && $mimetype->isBinary ) {
96 $content_type .= ";charset=$iana";
99 $r->subprocess_env('no-gzip' => 1); # disable mod_deflate
100 $r->content_type($content_type);