www: $MESSAGE_ID/raw endpoint supports "duplicates"

[public-inbox.git] / lib / PublicInbox / Mbox.pm

diff --git a/lib/PublicInbox/Mbox.pm b/lib/PublicInbox/Mbox.pm
index 84cc384529f174cd020bbfb2360519720b5d0929..79e09a70f575a576d6f75df176efa627d15431cd 100644 (file)
--- a/lib/PublicInbox/Mbox.pm
+++ b/lib/PublicInbox/Mbox.pm
@@ -26,12 +26,68 @@ sub subject_fn ($) {
        $fn eq '' ? 'no-subject' : $fn;
 }
 
-sub emit1 {
-       my ($ctx, $msg) = @_;
-       $msg = Email::Simple->new($msg);
-       my $fn = subject_fn($msg);
+sub smsg_for ($$$) {
+       my ($head, $db, $mid) = @_;
+       my $doc_id = $head->get_docid;
+       my $doc = $db->get_document($doc_id);
+       PublicInbox::SearchMsg->wrap($doc, $mid)->load_expand;
+}
+
+sub mb_stream {
+       my ($more) = @_;
+       bless $more, 'PublicInbox::Mbox';
+}
+
+# called by PSGI server as body response
+sub getline {
+       my ($more) = @_; # self
+       my ($ctx, $head, $tail, $db, $cur) = @$more;
+       if ($cur) {
+               pop @$more;
+               return msg_str($ctx, $cur);
+       }
+       for (; !defined($cur) && $head != $tail; $head++) {
+               my $smsg = smsg_for($head, $db, $ctx->{mid});
+               next if $smsg->type ne 'mail';
+               my $mref = $ctx->{-inbox}->msg_by_smsg($smsg) or next;
+               $cur = Email::Simple->new($mref);
+               $cur = msg_str($ctx, $cur);
+       }
+       $more->[1] = $head;
+       $cur;
+}
+
+sub close {} # noop
+
+sub emit_raw {
+       my ($ctx) = @_;
+       my $mid = $ctx->{mid};
+       my $ibx = $ctx->{-inbox};
+       my $first;
+       my $more;
+       my ($head, $tail, $db);
+       my %seen;
+       if (my $srch = $ibx->search) {
+               $srch->retry_reopen(sub {
+                       ($head, $tail, $db) = $srch->each_smsg_by_mid($mid);
+                       for (; !defined($first) && $head != $tail; $head++) {
+                               my $smsg = smsg_for($head, $db, $mid);
+                               next if $smsg->type ne 'mail';
+                               my $mref = $ibx->msg_by_smsg($smsg) or next;
+                               $first = Email::Simple->new($mref);
+                       }
+                       if ($head != $tail) {
+                               $more = [ $ctx, $head, $tail, $db, $first ];
+                       }
+               });
+       } else {
+               my $mref = $ibx->msg_by_mid($mid) or return;
+               $first = Email::Simple->new($mref);
+       }
+       return unless defined $first;
+       my $fn = subject_fn($first);
        my @hdr = ('Content-Type');
-       if ($ctx->{-inbox}->{obfuscate}) {
+       if ($ibx->{obfuscate}) {
                # obfuscation is stupid, but maybe scrapers are, too...
                push @hdr, 'application/mbox';
                $fn .= '.mbox';
@@ -40,10 +96,7 @@ sub emit1 {
                $fn .= '.txt';
        }
        push @hdr, 'Content-Disposition', "inline; filename=$fn";
-
-       # single message should be easily renderable in browsers,
-       # unless obfuscation is enabled :<
-       [ 200, \@hdr, [ msg_str($ctx, $msg) ] ]
+       [ 200, \@hdr, $more ? mb_stream($more) : [ msg_str($ctx, $first) ] ];
 }
 
 sub msg_str {