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#-*- perl -*-
#
# Copyright (C) 2002 Ken'ichi Fukamachi
# All rights reserved. This program is free software; you can
# redistribute it and/or modify it under the same terms as Perl itself.
#
# $FML: Command.pm,v 1.4 2002/07/18 23:14:12 fukachan Exp $
#
package FML::Restriction::Command;
use strict;
use vars qw(@ISA @EXPORT @EXPORT_OK $AUTOLOAD);
use Carp;
=head1 NAME
FML::Restriction::Command - safe regexp allowed as a command
=head1 SYNOPSIS
collection of utility functions used in command routines.
=head1 DESCRIPTION
=head1 METHODS
=head2 is_secure_command_string($str)
check if $str string looks secure ?
return 1 if secure.
=cut
# Descriptions: $s looks secure ?
# Arguments: STR($s)
# Side Effects: none
# History: fml 4.0's SecureP()
# Return Value: NUM(1 or 0)
sub is_secure_command_string
{
my ($s) = @_;
# 0. clean up
$s =~ s/^\s*\#\s*//o; # remove ^#
# 1. trivial case
# 1.1. empty
if ($s =~ /^\s*$/o) {
return 1;
}
# 2. allow
# command = [-\d\w]+
# mail address = [-_\w]+@[\w\-\.]+
# command options = last:30
if ($s =~/^[-\d\w]+\s*$/o) {
return 1;
}
elsif ($s =~/^[-\d\w]+\s+[\s\w\_\-\.\,\@\:]+$/o) {
return 1;
}
return 0;
}
=head2 C<is_valid_mail_address($string)>
check if C<$strings> contains no Japanese string.
return 1 if $string looks valid email address.
=cut
# Descriptions: $s is valid email address ?
# Arguments: STR($s)
# Side Effects: none
# Return Value: 1 or 0
sub is_valid_mail_address
{
my ($s) = @_;
# 1. NOT Japanese strings
($s !~ /\s|\033\$[\@B]|\033\([BJ]/ &&
$s =~ /^[\0-\177]+\@[\0-\177]+$/) ? 1 : 0;
}
=head1 AUTHOR
Ken'ichi Fukamachi
=head1 COPYRIGHT
Copyright (C) 2002 Ken'ichi Fukamachi
All rights reserved. This program is free software; you can
redistribute it and/or modify it under the same terms as Perl itself.
=head1 HISTORY
FML::Restriction::Command appeared in fml5 mailing list driver package.
See C<http://www.fml.org/> for more details.
=cut
1;
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