+sub mimetype_guess_file {
+ my $filename = shift;
+ my $mimemap = shift;
+ -r $mimemap or return undef;
+
+ my %mimemap;
+ open(MIME, $mimemap) or return undef;
+ while (<MIME>) {
+ my ($mime, $exts) = split(/\t+/);
+ my @exts = split(/\s+/, $exts);
+ foreach my $ext (@exts) {
+ $mimemap{$ext} = $mime;
+ }
+ }
+ close(MIME);
+
+ $filename =~ /\.(.*?)$/;
+ return $mimemap{$1};
+}
+
+sub mimetype_guess {
+ my $filename = shift;
+ my $mime;
+ $filename =~ /\./ or return undef;
+
+ if ($mimetypes_file) {
+ my $file = $mimetypes_file;
+ #$file =~ m#^/# or $file = "$projectroot/$path/$file";
+ $mime = mimetype_guess_file($filename, $file);
+ }
+ $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
+ return $mime;
+}
+
+sub git_blob_plain_mimetype {
+ my $fd = shift;
+ my $filename = shift;
+
+ if ($filename) {
+ my $mime = mimetype_guess($filename);
+ $mime and return $mime;
+ }
+
+ # just in case
+ return $default_blob_plain_mimetype unless $fd;
+
+ if (-T $fd) {
+ return 'text/plain' .
+ ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
+ } elsif (! $filename) {
+ return 'application/octet-stream';
+ } elsif ($filename =~ m/\.png$/i) {
+ return 'image/png';
+ } elsif ($filename =~ m/\.gif$/i) {
+ return 'image/gif';
+ } elsif ($filename =~ m/\.jpe?g$/i) {
+ return 'image/jpeg';
+ } else {
+ return 'application/octet-stream';
+ }
+}
+
+sub git_blob_plain {
+ my $type = shift;
+ open my $fd, "-|", "$GIT cat-file blob $hash" or die_error("Couldn't cat $file_name, $hash");
+
+ $type ||= git_blob_plain_mimetype($fd, $file_name);
+
+ # save as filename, even when no $file_name is given
+ my $save_as = "$hash";
+ if (defined $file_name) {
+ $save_as = $file_name;
+ } elsif ($type =~ m/^text\//) {
+ $save_as .= '.txt';
+ }
+
+ print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
+ undef $/;
+ binmode STDOUT, ':raw';
+ print <$fd>;
+ binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
+ $/ = "\n";
+ close $fd;
+}
+