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# -*- perl -*-
# Net::FTPServer A Perl FTP Server
# Copyright (C) 2000 Bibliotech Ltd., Unit 2-3, 50 Carnwath Road,
# London, SW6 3EG, United Kingdom.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
=pod
=head1 NAME
Net::FTPServer::RO::Server - The anonymous read-only FTP server personality
=head1 SYNOPSIS
ro-ftpd.pl [-d] [-v] [-p port] [-s] [-S] [-V] [-C conf_file]
=head1 DESCRIPTION
C<Net::FTPServer::RO::Server> is the anonymous read-only FTP server
personality. This personality implements a complete
FTP server with similar functionality to I<wu-ftpd>,
except that it is not possible to write and all logins
must be anonymous.
=head1 METHODS
=cut
package Net::FTPServer::RO::Server;
use strict;
use vars qw($VERSION);
( $VERSION ) = '$Revision: 1.1 $ ' =~ /\$Revision:\s+([^\s]+)/;
use Net::FTPServer;
use Net::FTPServer::RO::FileHandle;
use Net::FTPServer::RO::DirHandle;
use vars qw(@ISA);
@ISA = qw(Net::FTPServer);
# This is called before configuration.
sub pre_configuration_hook
{
my $self = shift;
# Put the personality signature into the version string.
$self->{version_string} .= " (RO)";
}
=pod
=over 4
=item $rv = $self->authentication_hook ($user, $pass, $user_is_anon)
Perform login against C</etc/passwd> or the PAM database.
=cut
sub authentication_hook
{
my $self = shift;
my $user = shift;
my $pass = shift;
my $user_is_anon = shift;
# Only allow anonymous users.
return -1 unless $user_is_anon;
return 0;
}
=pod
=item $self->user_login_hook ($user, $user_is_anon)
Hook: Called just after user C<$user> has successfully logged in.
=cut
sub user_login_hook
{
my $self = shift;
my $user = shift;
my $user_is_anon = shift;
# For anonymous users, chroot to ftp directory.
my ($login, $pass, $uid, $gid, $quota, $comment, $gecos, $homedir)
= getpwnam "ftp"
or die "no ftp user in password file";
chroot $homedir or die "cannot chroot: $homedir: $!";
# We don't allow users to relogin, so completely change to
# the user specified.
$self->_drop_privs ($uid, $gid, $login);
}
=pod
=item $dirh = $self->root_directory_hook;
Hook: Return an instance of Net::FTPServer::RO::DirHandle
corresponding to the root directory.
=cut
sub root_directory_hook
{
my $self = shift;
return new Net::FTPServer::RO::DirHandle ($self);
}
1 # So that the require or use succeeds.
__END__
=back
=head1 AUTHORS
Richard Jones (rich@annexia.org).
=head1 COPYRIGHT
Copyright (C) 2000 Biblio@Tech Ltd., Unit 2-3, 50 Carnwath Road,
London, SW6 3EG, UK
=head1 SEE ALSO
C<Net::FTPServer(3)>,
C<Net::FTP(3)>,
C<perl(1)>,
RFC 765,
RFC 959,
RFC 1579,
RFC 2389,
RFC 2428,
RFC 2577,
RFC 2640,
Extensions to FTP Internet Draft draft-ietf-ftpext-mlst-NN.txt.
=cut
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