+if(!$marc) {
+ print $query->redirect("/cgi-bin/koha/errors/404.pl");
+ exit;
+}
+
+my $file_id = $biblionumber;
+my $file_pre = "bib-";
+if( C4::Context->preference('DefaultSaveRecordFileID') eq 'controlnumber' ){
+ my $marcflavour = C4::Context->preference('marcflavour'); #FIXME This option is required but does not change control num behaviour
+ my $control_num = GetMarcControlnumber( $marc, $marcflavour );
+ if( $control_num ){
+ $file_id = $control_num;
+ $file_pre = "record-";
+ }
+}
+
+# ASSERT: There is a biblionumber, because GetMarcBiblio returned something.
+my $framework = GetFrameworkCode( $biblionumber );
+my $record_processor = Koha::RecordProcessor->new({
+ filters => 'ViewPolicy',
+ options => {
+ interface => 'opac',
+ frameworkcode => $framework
+ }
+});
+$record_processor->process($marc);
+
+if ($format =~ /endnote/) {
+ $marc = marc2endnote($marc);
+ $format = 'endnote';
+}
+elsif ($format =~ /marcxml/) {
+ $marc = marc2marcxml($marc);
+ $format = 'marcxml';
+}
+elsif ($format=~ /mods/) {
+ $marc = marc2modsxml($marc);
+ $format = 'mods';
+}
+elsif ($format =~ /ris/) {
+ $marc = marc2ris($marc);
+ $format = 'ris';
+}
+elsif ($format =~ /bibtex/) {
+ $marc = marc2bibtex($marc,$biblionumber);
+ $format = 'bibtex';
+}
+elsif ($format =~ /^(dc|oaidc|srwdc|rdfdc)$/i ) {
+ # TODO: Dublin Core leaks fields marked hidden by framework.
+ $marc = marc2dcxml($marc, undef, $biblionumber, $format);
+ $format = "dublin-core.xml";
+}
+elsif ($format =~ /marc8/) {
+ ($error,$marc) = changeEncoding($marc,"MARC","MARC21","MARC-8");
+ $marc = $marc->as_usmarc() unless $error;
+ $format = 'marc8';
+}
+elsif ($format =~ /utf8/) {
+ C4::Charset::SetUTF8Flag($marc,1);
+ $marc = $marc->as_usmarc();
+ $format = 'utf8';
+}
+elsif ($format =~ /marcstd/) {
+ C4::Charset::SetUTF8Flag($marc,1);
+ ($error,$marc) = marc2marc($marc, 'marcstd', C4::Context->preference('marcflavour'));
+ $format = 'marcstd';
+}
+elsif ( $format =~ /isbd/ ) {
+ $marc = GetISBDView({
+ 'record' => $marc,
+ 'template' => 'opac',
+ 'framework' => $framework,
+ });
+ $format = 'isbd';
+}
+else {
+ $error= "Format $format is not supported.";
+}