# Net::POP3.pm
#
-# Copyright (c) 1995 Graham Barr <Graham.Barr@tiuk.ti.com>. All rights
-# reserved. This program is free software; you can redistribute it and/or
+# Copyright (c) 1995-1997 Graham Barr <gbarr@pobox.com>. All rights reserved.
+# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
package Net::POP3;
-=head1 NAME
-
-Net::POP3 - Post Office Protocol 3 Client class (RFC1081)
-
-=head1 SYNOPSIS
-
- use Net::POP3;
-
- # Constructors
- $pop = Net::POP3->new('pop3host');
- $pop = Net::POP3->new('pop3host', Timeout => 60);
-
-=head1 DESCRIPTION
-
-This module implements a client interface to the POP3 protocol, enabling
-a perl5 application to talk to POP3 servers. This documentation assumes
-that you are familiar with the POP3 protocol described in RFC1081.
-
-A new Net::POP3 object must be created with the I<new> method. Once
-this has been done, all POP3 commands are accessed via method calls
-on the object.
-
-=head1 EXAMPLES
-
- Need some small examples in here :-)
-
-=head1 CONSTRUCTOR
-
-=over 4
-
-=item new ( HOST, [ OPTIONS ] )
-
-This is the constructor for a new Net::POP3 object. C<HOST> is the
-name of the remote host to which a POP3 connection is required.
-
-C<OPTIONS> are passed in a hash like fasion, using key and value pairs.
-Possible options are:
-
-B<Timeout> - Maximum time, in seconds, to wait for a response from the
-POP3 server (default: 120)
-
-B<Debug> - Enable debugging information
-
-=back
-
-=head1 METHODS
-
-Unless otherwise stated all methods return either a I<true> or I<false>
-value, with I<true> meaning that the operation was a success. When a method
-states that it returns a value, falure will be returned as I<undef> or an
-empty list.
-
-=over 4
-
-=item user ( USER )
-
-Send the USER command.
-
-=item pass ( PASS )
-
-Send the PASS command. Returns the number of messages in the mailbox.
-
-=item login ( [ USER [, PASS ]] )
-
-Send both the the USER and PASS commands. If C<PASS> is not given the
-C<Net::POP3> uses C<Net::Netrc> to lookup the password using the host
-and username. If the username is not specified then the current user name
-will be used.
-
-Returns the number of messages in the mailbox.
-
-=item top ( MSGNUM [, NUMLINES ] )
-
-Get the header and the first C<NUMLINES> of the body for the message
-C<MSGNUM>. Returns a reference to an array which contains the lines of text
-read from the server.
-
-=item list ( [ MSGNUM ] )
-
-If called with an argument the C<list> returns the size of the messsage
-in octets.
-
-If called without arguments the a refererence to a hash is returned. The
-keys will be the C<MSGNUM>'s of all undeleted messages and the values will
-be their size in octets.
-
-=item get ( MSGNUM )
-
-Get the message C<MSGNUM> from the remote mailbox. Returns a reference to an
-array which contains the lines of text read from the server.
-
-=item last ()
-
-Returns the highest C<MSGNUM> of all the messages accessed.
-
-=item popstat ()
-
-Returns an array of two elements. These are the number of undeleted
-elements and the size of the mbox in octets.
-
-=item delete ( MSGNUM )
-
-Mark message C<MSGNUM> to be deleted from the remote mailbox. All messages
-that are marked to be deleted will be removed from the remote mailbox
-when the server connection closed.
-
-=item reset ()
-
-Reset the status of the remote POP3 server. This includes reseting the
-status of all messages to not be deleted.
-
-=item quit ()
-
-Quit and close the connection to the remote POP3 server. Any messages marked
-as deleted will be deleted from the remote mailbox.
-
-=back
-
-=head1 NOTES
-
-If a C<Net::POP3> object goes out of scope before C<quit> method is called
-then the C<reset> method will called before the connection is closed. This
-means that any messages marked to be deleted will not be.
-
-=head1 SEE ALSO
-
-L<Net::Netrc>
-L<Net::Cmd>
-
-=head1 AUTHOR
-
-Graham Barr <Graham.Barr@tiuk.ti.com>
-
-=head1 REVISION
-
-$Revision: 2.1 $
-$Date: 1996/07/26 06:44:44 $
-
-The VERSION is derived from the revision by changing each number after the
-first dot into a 2 digit number so
-
- Revision 1.8 => VERSION 1.08
- Revision 1.2.3 => VERSION 1.0203
-
-=head1 COPYRIGHT
-
-Copyright (c) 1995 Graham Barr. All rights reserved. This program is free
-software; you can redistribute it and/or modify it under the same terms
-as Perl itself.
-
-=cut
-
use strict;
use IO::Socket;
use vars qw(@ISA $VERSION $debug);
use Net::Cmd;
use Carp;
+use Net::Config;
-$VERSION = do{my @r=(q$Revision: 2.1 $=~/(\d+)/g);sprintf "%d."."%02d"x$#r,@r};
+$VERSION = "2.23"; # $Id: //depot/libnet/Net/POP3.pm#22 $
@ISA = qw(Net::Cmd IO::Socket::INET);
{
my $self = shift;
my $type = ref($self) || $self;
- my $host = shift;
+ my $host = shift if @_ % 2;
my %arg = @_;
- my $obj = $type->SUPER::new(PeerAddr => $host,
- PeerPort => $arg{Port} || 'pop3(110)',
- Proto => 'tcp',
- Timeout => defined $arg{Timeout}
+ my $hosts = defined $host ? [ $host ] : $NetConfig{pop3_hosts};
+ my $obj;
+ my @localport = exists $arg{ResvPort} ? ( LocalPort => $arg{ResvPort} ): ();
+
+ my $h;
+ foreach $h (@{$hosts})
+ {
+ $obj = $type->SUPER::new(PeerAddr => ($host = $h),
+ PeerPort => $arg{Port} || 'pop3(110)',
+ Proto => 'tcp',
+ @localport,
+ Timeout => defined $arg{Timeout}
? $arg{Timeout}
: 120
- ) or return undef;
+ ) and last;
+ }
+
+ return undef
+ unless defined $obj;
${*$obj}{'net_pop3_host'} = $host;
return undef;
}
+ ${*$obj}{'net_pop3_banner'} = $obj->message;
+
$obj;
}
@_ >= 1 && @_ <= 3 or croak 'usage: $pop3->login( USER, PASS )';
my($me,$user,$pass) = @_;
- if(@_ < 2)
- {
- require Net::Netrc;
+ if (@_ <= 2) {
+ ($user, $pass) = $me->_lookup_credentials($user);
+ }
- $user ||= (getpwuid($>))[0];
+ $me->user($user) and
+ $me->pass($pass);
+}
- my $m = Net::Netrc->lookup(${*$me}{'net_pop3_host'},$user);
+sub apop
+{
+ @_ >= 1 && @_ <= 3 or croak 'usage: $pop3->apop( USER, PASS )';
+ my($me,$user,$pass) = @_;
+ my $banner;
+ my $md;
+
+ if (eval { local $SIG{__DIE__}; require Digest::MD5 }) {
+ $md = Digest::MD5->new();
+ } elsif (eval { local $SIG{__DIE__}; require MD5 }) {
+ $md = MD5->new();
+ } else {
+ carp "You need to install Digest::MD5 or MD5 to use the APOP command";
+ return undef;
+ }
- $m ||= Net::Netrc->lookup(${*$me}{'net_pop3_host'});
+ return undef
+ unless ( $banner = (${*$me}{'net_pop3_banner'} =~ /(<.*>)/)[0] );
- $pass = $m ? $m->password || ""
- : "";
- }
+ if (@_ <= 2) {
+ ($user, $pass) = $me->_lookup_credentials($user);
+ }
- $me->user($user) and
- $me->pass($pass);
+ $md->add($banner,$pass);
+
+ return undef
+ unless($me->_APOP($user,$md->hexdigest));
+
+ $me->_get_mailbox_count();
}
sub user
{
@_ == 2 or croak 'usage: $pop3->user( USER )';
- $_[0]->_USER($_[1]);
+ $_[0]->_USER($_[1]) ? 1 : undef;
}
sub pass
return undef
unless($me->_PASS($pass));
- $me->message =~ /(\d+)\s+message/io;
-
- ${*$me}{'net_pop3_count'} = $1 || 0;
+ $me->_get_mailbox_count();
}
sub reset
return 0
unless($me->_RSET);
-
+
if(defined ${*$me}{'net_pop3_mail'})
{
local $_;
$me->message =~ /\d+\D+(\d+)/;
return $1 || undef;
}
-
- my $info = $me->read_until_dot;
- my %hash = ();
- map { /(\d+)\D+(\d+)/; $hash{$1} = $2; } @$info;
+
+ my $info = $me->read_until_dot
+ or return undef;
+
+ my %hash = map { (/(\d+)\D+(\d+)/) } @$info;
return \%hash;
}
sub get
{
- @_ == 2 or croak 'usage: $pop3->get( MSGNUM )';
+ @_ == 2 or @_ == 3 or croak 'usage: $pop3->get( MSGNUM [, FH ])';
my $me = shift;
return undef
- unless $me->_RETR(@_);
+ unless $me->_RETR(shift);
- $me->read_until_dot;
+ $me->read_until_dot(@_);
}
+sub getfh
+{
+ @_ == 2 or croak 'usage: $pop3->getfh( MSGNUM )';
+ my $me = shift;
+
+ return unless $me->_RETR(shift);
+ return $me->tied_fh;
+}
+
+
+
sub delete
{
@_ == 2 or croak 'usage: $pop3->delete( MSGNUM )';
$_[0]->_DELE($_[1]);
}
-sub _USER { shift->command('USER',$_[0])->response() == CMD_OK }
-sub _PASS { shift->command('PASS',$_[0])->response() == CMD_OK }
-sub _RPOP { shift->command('RPOP',$_[0])->response() == CMD_OK }
+sub uidl
+{
+ @_ == 1 || @_ == 2 or croak 'usage: $pop3->uidl( [ MSGNUM ] )';
+ my $me = shift;
+ my $uidl;
+
+ $me->_UIDL(@_) or
+ return undef;
+ if(@_)
+ {
+ $uidl = ($me->message =~ /\d+\s+([\041-\176]+)/)[0];
+ }
+ else
+ {
+ my $ref = $me->read_until_dot
+ or return undef;
+ my $ln;
+ $uidl = {};
+ foreach $ln (@$ref) {
+ my($msg,$uid) = $ln =~ /^\s*(\d+)\s+([\041-\176]+)/;
+ $uidl->{$msg} = $uid;
+ }
+ }
+ return $uidl;
+}
+
+sub ping
+{
+ @_ == 2 or croak 'usage: $pop3->ping( USER )';
+ my $me = shift;
+
+ return () unless $me->_PING(@_) && $me->message =~ /(\d+)\D+(\d+)/;
+
+ ($1 || 0, $2 || 0);
+}
+
+sub _lookup_credentials
+{
+ my ($me, $user) = @_;
+
+ require Net::Netrc;
+
+ $user ||= eval { local $SIG{__DIE__}; (getpwuid($>))[0] } ||
+ $ENV{NAME} || $ENV{USER} || $ENV{LOGNAME};
+
+ my $m = Net::Netrc->lookup(${*$me}{'net_pop3_host'},$user);
+ $m ||= Net::Netrc->lookup(${*$me}{'net_pop3_host'});
+
+ my $pass = $m ? $m->password || ""
+ : "";
+
+ ($user, $pass);
+}
+
+sub _get_mailbox_count
+{
+ my ($me) = @_;
+ my $ret = ${*$me}{'net_pop3_count'} = ($me->message =~ /(\d+)\s+message/io)
+ ? $1 : ($me->popstat)[0];
+
+ $ret ? $ret : "0E0";
+}
+
+
+sub _STAT { shift->command('STAT')->response() == CMD_OK }
+sub _LIST { shift->command('LIST',@_)->response() == CMD_OK }
sub _RETR { shift->command('RETR',$_[0])->response() == CMD_OK }
sub _DELE { shift->command('DELE',$_[0])->response() == CMD_OK }
-sub _TOP { shift->command('TOP', @_)->response() == CMD_OK }
-sub _LIST { shift->command('LIST',@_)->response() == CMD_OK }
sub _NOOP { shift->command('NOOP')->response() == CMD_OK }
sub _RSET { shift->command('RSET')->response() == CMD_OK }
-sub _LAST { shift->command('LAST')->response() == CMD_OK }
sub _QUIT { shift->command('QUIT')->response() == CMD_OK }
-sub _STAT { shift->command('STAT')->response() == CMD_OK }
+sub _TOP { shift->command('TOP', @_)->response() == CMD_OK }
+sub _UIDL { shift->command('UIDL',@_)->response() == CMD_OK }
+sub _USER { shift->command('USER',$_[0])->response() == CMD_OK }
+sub _PASS { shift->command('PASS',$_[0])->response() == CMD_OK }
+sub _APOP { shift->command('APOP',@_)->response() == CMD_OK }
+sub _PING { shift->command('PING',$_[0])->response() == CMD_OK }
-sub close
+sub _RPOP { shift->command('RPOP',$_[0])->response() == CMD_OK }
+sub _LAST { shift->command('LAST')->response() == CMD_OK }
+
+sub quit
{
my $me = shift;
- return 1
- unless (ref($me) && defined fileno($me));
-
- $me->_QUIT && $me->SUPER::close;
+ $me->_QUIT;
+ $me->close;
}
-sub quit { shift->close }
-
sub DESTROY
{
my $me = shift;
- if(fileno($me))
+ if(defined fileno($me))
{
$me->reset;
$me->quit;
}
else
{
- $str =~ s/^\+ERR\s+//io;
+ $str =~ s/^-ERR\s+//io;
}
${*$cmd}{'net_cmd_resp'} = [ $str ];
}
1;
+
+__END__
+
+=head1 NAME
+
+Net::POP3 - Post Office Protocol 3 Client class (RFC1939)
+
+=head1 SYNOPSIS
+
+ use Net::POP3;
+
+ # Constructors
+ $pop = Net::POP3->new('pop3host');
+ $pop = Net::POP3->new('pop3host', Timeout => 60);
+
+=head1 DESCRIPTION
+
+This module implements a client interface to the POP3 protocol, enabling
+a perl5 application to talk to POP3 servers. This documentation assumes
+that you are familiar with the POP3 protocol described in RFC1939.
+
+A new Net::POP3 object must be created with the I<new> method. Once
+this has been done, all POP3 commands are accessed via method calls
+on the object.
+
+=head1 EXAMPLES
+
+ Need some small examples in here :-)
+
+=head1 CONSTRUCTOR
+
+=over 4
+
+=item new ( [ HOST, ] [ OPTIONS ] )
+
+This is the constructor for a new Net::POP3 object. C<HOST> is the
+name of the remote host to which a POP3 connection is required.
+
+If C<HOST> is not given, then the C<POP3_Host> specified in C<Net::Config>
+will be used.
+
+C<OPTIONS> are passed in a hash like fashion, using key and value pairs.
+Possible options are:
+
+B<ResvPort> - If given then the socket for the C<Net::POP3> object
+will be bound to the local port given using C<bind> when the socket is
+created.
+
+B<Timeout> - Maximum time, in seconds, to wait for a response from the
+POP3 server (default: 120)
+
+B<Debug> - Enable debugging information
+
+=back
+
+=head1 METHODS
+
+Unless otherwise stated all methods return either a I<true> or I<false>
+value, with I<true> meaning that the operation was a success. When a method
+states that it returns a value, failure will be returned as I<undef> or an
+empty list.
+
+=over 4
+
+=item user ( USER )
+
+Send the USER command.
+
+=item pass ( PASS )
+
+Send the PASS command. Returns the number of messages in the mailbox.
+
+=item login ( [ USER [, PASS ]] )
+
+Send both the USER and PASS commands. If C<PASS> is not given the
+C<Net::POP3> uses C<Net::Netrc> to lookup the password using the host
+and username. If the username is not specified then the current user name
+will be used.
+
+Returns the number of messages in the mailbox. However if there are no
+messages on the server the string C<"0E0"> will be returned. This is
+will give a true value in a boolean context, but zero in a numeric context.
+
+If there was an error authenticating the user then I<undef> will be returned.
+
+=item apop ( [ USER [, PASS ]] )
+
+Authenticate with the server identifying as C<USER> with password C<PASS>.
+Similar to L</login>, but the password is not sent in clear text.
+
+To use this method you must have the Digest::MD5 or the MD5 module installed,
+otherwise this method will return I<undef>.
+
+=item top ( MSGNUM [, NUMLINES ] )
+
+Get the header and the first C<NUMLINES> of the body for the message
+C<MSGNUM>. Returns a reference to an array which contains the lines of text
+read from the server.
+
+=item list ( [ MSGNUM ] )
+
+If called with an argument the C<list> returns the size of the message
+in octets.
+
+If called without arguments a reference to a hash is returned. The
+keys will be the C<MSGNUM>'s of all undeleted messages and the values will
+be their size in octets.
+
+=item get ( MSGNUM [, FH ] )
+
+Get the message C<MSGNUM> from the remote mailbox. If C<FH> is not given
+then get returns a reference to an array which contains the lines of
+text read from the server. If C<FH> is given then the lines returned
+from the server are printed to the filehandle C<FH>.
+
+=item getfh ( MSGNUM )
+
+As per get(), but returns a tied filehandle. Reading from this
+filehandle returns the requested message. The filehandle will return
+EOF at the end of the message and should not be reused.
+
+=item last ()
+
+Returns the highest C<MSGNUM> of all the messages accessed.
+
+=item popstat ()
+
+Returns a list of two elements. These are the number of undeleted
+elements and the size of the mbox in octets.
+
+=item ping ( USER )
+
+Returns a list of two elements. These are the number of new messages
+and the total number of messages for C<USER>.
+
+=item uidl ( [ MSGNUM ] )
+
+Returns a unique identifier for C<MSGNUM> if given. If C<MSGNUM> is not
+given C<uidl> returns a reference to a hash where the keys are the
+message numbers and the values are the unique identifiers.
+
+=item delete ( MSGNUM )
+
+Mark message C<MSGNUM> to be deleted from the remote mailbox. All messages
+that are marked to be deleted will be removed from the remote mailbox
+when the server connection closed.
+
+=item reset ()
+
+Reset the status of the remote POP3 server. This includes reseting the
+status of all messages to not be deleted.
+
+=item quit ()
+
+Quit and close the connection to the remote POP3 server. Any messages marked
+as deleted will be deleted from the remote mailbox.
+
+=back
+
+=head1 NOTES
+
+If a C<Net::POP3> object goes out of scope before C<quit> method is called
+then the C<reset> method will called before the connection is closed. This
+means that any messages marked to be deleted will not be.
+
+=head1 SEE ALSO
+
+L<Net::Netrc>,
+L<Net::Cmd>
+
+=head1 AUTHOR
+
+Graham Barr <gbarr@pobox.com>
+
+=head1 COPYRIGHT
+
+Copyright (c) 1995-1997 Graham Barr. All rights reserved.
+This program is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=for html <hr>
+
+I<$Id: //depot/libnet/Net/POP3.pm#22 $>
+
+=cut
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