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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
# $Id: FileHandle.pm,v 1.7 2001/10/24 14:40:07 rich Exp $
=pod
=head1 NAME
Net::FTPServer::RO::FileHandle - The anonymous, read-only FTP server personality
=head1 SYNOPSIS
use Net::FTPServer::RO::FileHandle;
=head1 DESCRIPTION
=head1 METHODS
=over 4
=cut
package Net::FTPServer::RO::FileHandle;
use strict;
use vars qw($VERSION);
( $VERSION ) = '$Revision: 1.7 $ ' =~ /\$Revision:\s+([^\s]+)/;
use Net::FTPServer::FileHandle;
use vars qw(@ISA);
@ISA = qw(Net::FTPServer::FileHandle);
=pod
=item $dirh = $fileh->dir;
Return the directory which contains this file.
=cut
sub dir
{
my $self = shift;
my $dirname = $self->{_pathname};
$dirname =~ s,[^/]+$,,;
return Net::FTPServer::RO::DirHandle->new ($self->{ftps}, $dirname);
}
=pod
=item $fh = $fileh->open (["r"|"w"|"a"]);
Open a file handle (derived from C<IO::Handle>, see
L<IO::Handle(3)>) in either read or write mode.
=cut
sub open
{
my $self = shift;
my $mode = shift;
return undef unless $mode eq "r";
return new IO::File $self->{_pathname}, $mode;
}
=pod
=item ($mode, $perms, $nlink, $user, $group, $size, $time) = $handle->status;
Return the file or directory status. The fields returned are:
$mode Mode 'd' = directory,
'f' = file,
and others as with
the find(1) -type option.
$perms Permissions Permissions in normal octal numeric format.
$nlink Link count
$user Username In printable format.
$group Group name In printable format.
$size Size File size in bytes.
$time Time Time (usually mtime) in Unix time_t format.
In derived classes, some of this status information may well be
synthesized, since virtual filesystems will often not contain
information in a Unix-like format.
=cut
sub status
{
my $self = shift;
my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size,
$atime, $mtime, $ctime, $blksize, $blocks)
= lstat $self->{_pathname};
# If the file has been removed since we created this
# handle, then $dev will be undefined. Return dummy status
# information.
return ("f", 0000, 1, "-", "-", 0, 0) unless $dev;
# Generate printable user/group.
my $user = getpwuid ($uid) || "-";
my $group = getgrgid ($gid) || "-";
# Permissions from mode.
my $perms = $mode & 0777;
# Work out the mode using special "_" operator which causes Perl
# to use the result of the previous stat call.
$mode
= (-f _ ? 'f' :
(-d _ ? 'd' :
(-l _ ? 'l' :
(-p _ ? 'p' :
(-S _ ? 's' :
(-b _ ? 'b' :
(-c _ ? 'c' : '?')))))));
return ($mode, $perms, $nlink, $user, $group, $size, $mtime);
}
=pod
=item $rv = $handle->move ($dirh, $filename);
Move the current file (or directory) into directory C<$dirh> and
call it C<$filename>. If the operation is successful, return 0,
else return -1.
Underlying filesystems may impose limitations on moves: for example,
it may not be possible to move a directory; it may not be possible
to move a file to another directory; it may not be possible to
move a file across filesystems.
=cut
sub move
{
return -1; # Not permitted in read-only server.
}
=pod
=item $rv = $fileh->delete;
Delete the current file. If the delete command was
successful, then return 0, else if there was an error return -1.
=cut
sub delete
{
return -1; # Not permitted in read-only server.
}
1 # So that the require or use succeeds.
__END__
=back 4
=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
L<Net::FTPServer(3)>, L<perl(1)>
=cut
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