+sub stream_blob_parse_hdr { # {parse_hdr} for Qspawn
+ my ($r, $bref, $ctx) = @_;
+ my ($res, $logref) = delete @$ctx{qw(-res -logref)};
+ my ($git, $oid, $type, $size, $di) = @$res;
+ my @cl = ('Content-Length', $size);
+ if (!defined $r) { # error
+ html_page($ctx, 500, $logref);
+ } elsif (index($$bref, "\0") >= 0) {
+ [200, [qw(Content-Type application/octet-stream), @cl] ];
+ } else {
+ my $n = bytes::length($$bref);
+ if ($n >= $BIN_DETECT || $n == $size) {
+ return [200, [ 'Content-Type',
+ 'text/plain; charset=UTF-8', @cl ] ];
+ }
+ if ($r == 0) {
+ warn "premature EOF on $oid $$logref\n";
+ return html_page($ctx, 500, $logref);
+ }
+ undef; # bref keeps growing
+ }
+}
+