chore: import upstream snapshot with attribution

webmin/change_ca.cgi

@@ -0,0 +1,28 @@
+#!/usr/local/bin/perl
+# change_ca.cgi
+# Update the CA cert manually
+
+require './webmin-lib.pl';
+&ReadParseMime();
+&lock_file($ENV{'MINISERV_CONFIG'});
+&get_miniserv_config(\%miniserv);
+if (!$miniserv{'ca'}) {
+	&setup_ca(\%miniserv);
+	}
+
+&lock_file($miniserv{'ca'});
+&open_tempfile(CA, ">$miniserv{'ca'}");
+$in{'cert'} =~ s/\r//g;
+$in{'cert'} =~ s/\n*$/\n/;
+&print_tempfile(CA, $in{'cert'});
+&close_tempfile(CA);
+chmod(0700, $miniserv{'ca'});
+&unlock_file($miniserv{'ca'});
+
+unlink("$config_directory/acl/crl.pem");
+&put_miniserv_config(\%miniserv);
+&unlock_file($ENV{'MINISERV_CONFIG'});
+&redirect("");
+sleep(1);
+&show_restart_page();
+&webmin_log("changeca", undef, undef, \%in);