Mail::POP3Client - Perl 5 module to talk to a POP3 (RFC1939) server
use Mail::POP3Client;
$pop = new Mail::POP3Client( USER => "me",
PASSWORD => "mypassword",
HOST => "pop3.do.main" );
for( $i = 1; $i <= $pop->Count(); $i++ ) {
foreach( $pop->Head( $i ) ) {
/^(From|Subject):\s+/i && print $_, "\n";
}
}
$pop->Close();
# OR with SSL
$pop = new Mail::POP3Client( USER => "me",
PASSWORD => "mypassword",
HOST => "pop3.do.main",
USESSL => true,
);
# OR
$pop2 = new Mail::POP3Client( HOST => "pop3.otherdo.main" );
$pop2->User( "somebody" );
$pop2->Pass( "doublesecret" );
$pop2->Connect() >= 0 || die $pop2->Message();
$pop2->Close();
# OR to use your own SSL socket...
my $socket = IO::Socket::SSL->new( PeerAddr => 'pop.securedo.main',
PeerPort => 993,
Proto => 'tcp') || die "No socket!";
my $pop = Mail::POP3Client->new();
$pop->User('somebody');
$pop->Pass('doublesecret');
$pop->Socket($socket);
$pop->Connect();
This module implements an Object-Oriented interface to a POP3 server.
It implements RFC1939 (http://www.faqs.org/rfcs/rfc1939.html)
Here is a simple example to list out the From: and Subject: headers in
your remote mailbox:
#!/usr/local/bin/perl
use Mail::POP3Client;
$pop = new Mail::POP3Client( USER => "me",
PASSWORD => "mypassword",
HOST => "pop3.do.main" );
for ($i = 1; $i <= $pop->Count(); $i++) {
foreach ( $pop->Head( $i ) ) {
/^(From|Subject):\s+/i and print $_, "\n";
}
print "\n";
}
Old style (deprecated):
new Mail::POP3Client( USER, PASSWORD [, HOST, PORT, DEBUG, AUTH_MODE] );
New style (shown with defaults):
new Mail::POP3Client( USER => ``'',
PASSWORD => ``'',
HOST => ``pop3'',
PORT => 110,
AUTH_MODE => 'BEST',
DEBUG => 0,
TIMEOUT => 60,
LOCALADDR => 'xxx.xxx.xxx.xxx[:xx]',
SOCKET => undef,
USESSL => 0,
);
These commands are intended to make writing a POP3 client easier.
They do not necessarily map directly to POP3 commands defined in
RFC1081 or RFC1939, although all commands should be supported. Some
commands return multiple lines as an array in an array context.
- new( USER => 'user', PASSWORD => 'password', HOST => 'host',
PORT => 110, DEBUG => 0, AUTH_MODE => 'BEST', TIMEOUT => 60,,
LOCALADDR => 'xxx.xxx.xxx.xxx[:xx]', SOCKET => undef, USESSL => 0 )
)
-
Construct a new POP3 connection with this. You should use the
hash-style constructor. The old positional constructor is
deprecated and will be removed in a future release. It is strongly
recommended that you convert your code to the new version.
You should give it at least 2 arguments: USER and PASSWORD. The
default HOST is 'pop3' which may or may not work for you. You can
specify a different PORT (be careful here).
new will attempt to Connect to and Login to the POP3 server if you
supply a USER and PASSWORD. If you do not supply them in the
constructor, you will need to call Connect yourself.
The valid values for AUTH_MODE are 'BEST', 'PASS', 'APOP' and 'CRAM-MD5'.
BEST says to try APOP if the server appears to support it and it can be
used to successfully log on, next try similarly with CRAM-MD5, and finally
revert to PASS. APOP and CRAM-MD5 imply that an MD5 checksum will be
used instead of sending your password in cleartext. However,
if the server does not claim to support APOP or CRAM-MD5,
the cleartext method will be used. Be careful. There are a few
servers that will send a timestamp in the banner greeting, but APOP
will not work with them (for instance if the server does not know your
password in cleartext). If you think your authentication information
is correct, run in DEBUG mode and look for errors regarding
authorization. If so, then you may have to use 'PASS' for that server.
The same applies to CRAM-MD5, too.
If you enable debugging with DEBUG => 1, socket traffic will be echoed
to STDERR.
Another warning, it's impossible to differentiate between a timeout
and a failure.
If you pass a true value for USESSL, the port will be changed to 995 if
it is not set or is 110. Otherwise, it will use your port. If USESSL
is true, IO::Socket::SSL will be loaded. If it is not in your perl,
the call to connect will fail.
new returns a valid Mail::POP3Client object in all cases. To test for
a connection failure, you will need to check the number of messages:
-1 indicates a connection error. This will likely change sometime in
the future to return undef on an error, setting $! as a side effect.
This change will not happen in any 2.x version.
- Head( MESSAGE_NUMBER [, PREVIEW_LINES ] )
-
Get the headers of the specified message, either as an array or as a
string, depending on context.
You can also specify a number of preview lines which will be returned
with the headers. This may not be supported by all POP3 server
implementations as it is marked as optional in the RFC. Submitted by
Dennis Moroney <dennis@hub.iwl.net>.
- Body( MESSAGE_NUMBER )
-
Get the body of the specified message, either as an array of lines or
as a string, depending on context.
- BodyToFile( FILE_HANDLE, MESSAGE_NUMBER )
-
Get the body of the specified message and write it to the given file handle.
my $fh = new IO::Handle();
$fh->fdopen( fileno( STDOUT ), ``w'' );
$pop->BodyToFile( $fh, 1 );
Does no stripping of NL or CR.
- HeadAndBody( MESSAGE_NUMBER )
-
Get the head and body of the specified message, either as an array of
lines or as a string, depending on context.
- Example
-
foreach ( $pop->HeadAndBody( 1 ) )
print $_, ``\n'';
prints out the complete text of message 1.
- HeadAndBodyToFile( FILE_HANDLE, MESSAGE_NUMBER )
-
Get the head and body of the specified message and write it to the given file handle.
my $fh = new IO::Handle();
$fh->fdopen( fileno( STDOUT ), ``w'' );
$pop->HeadAndBodyToFile( $fh, 1 );
Does no stripping of NL or CR.
- Retrieve( MESSAGE_NUMBER )
-
Same as HeadAndBody.
- RetrieveToFile( FILE_HANDLE, MESSAGE_NUMBER )
-
Same as HeadAndBodyToFile.
- Delete( MESSAGE_NUMBER )
-
Mark the specified message number as DELETED. Becomes effective upon
QUIT (invoking the Close method). Can be reset with a Reset message.
- Connect
-
Start the connection to the POP3 server. You can pass in the host and
port. Returns 1 if the connection succeeds, or 0 if it fails (Message
will contain a reason). The constructor always returns a blessed
reference to a Mail::POP3Client obhect. This may change in a version
3.x release, but never in a 2.x release.
- Close
-
Close the connection gracefully. POP3 says this will perform any
pending deletes on the server.
- Alive
-
Return true or false on whether the connection is active.
- Socket
-
Return the file descriptor for the socket, or set if supplied.
- Size
-
Set/Return the size of the remote mailbox. Set by POPStat.
- Count
-
Set/Return the number of remote messages. Set during Login.
- Message
-
The last status message received from the server or a message
describing any problem encountered.
- State
-
The internal state of the connection: DEAD, AUTHORIZATION, TRANSACTION.
- POPStat
-
Return the results of a POP3 STAT command. Sets the size of the
mailbox.
- List([message_number])
-
Returns the size of the given message number when called with an
argument using the following format:
<message_number> <size_in_bytes>
If message_number is omitted, List behaves the same as ListArray,
returning an indexed array of the sizes of each message in the same
format.
You can parse the size in bytes using split:
($msgnum, $size) = split('\s+', $pop -> List( n ));
- ListArray
-
Return a list of sizes of each message. This returns an indexed
array, with each message number as an index (starting from 1) and the
value as the next entry on the line. Beware that some servers send
additional info for each message for the list command. That info may
be lost.
- Uidl( [MESSAGE_NUMBER] )
-
Return the unique ID for the given message (or all of them). Returns
an indexed array with an entry for each valid message number.
Indexing begins at 1 to coincide with the server's indexing.
- Capa
-
Query server capabilities, as described in RFC 2449. Returns the
capabilities in an array. Valid in all states.
- XTND
-
Optional extended commands. Transaction state only.
- Last
-
Return the number of the last message, retrieved from the server.
- Reset
-
Tell the server to unmark any message marked for deletion.
- User( [USER_NAME] )
-
Set/Return the current user name.
- Pass( [PASSWORD] )
-
Set/Return the current user name.
- Login
-
Attempt to login to the server connection.
- Host( [HOSTNAME] )
-
Set/Return the current host.
- Port( [PORT_NUMBER] )
-
Set/Return the current port number.
Basic Mail::IMAPClient method calls are also supported: close, connect,
login, message_string, Password, and unseen. Also, empty stubs are
provided for Folder, folders, Peek, select, and Uid.
This module does not have mandatory requirements for modules that are not part
of the standard Perl distribution. However, APOP needs need Digest::MD5 and
CRAM-MD5 needs Digest::HMAC_MD5 and MIME::Base64.
Sean Dowd <pop3client@dowds.net>
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
Based loosely on News::NNTPClient by Rodger Anderson
<rodger@boi.hp.com>.
perl(1)
the Digest::MD5 manpage, the Digest::HMAC_MD5 manpage, the MIME::Base64 manpage
RFC 1939: Post Office Protocol - Version 3
RFC 2195: IMAP/POP AUTHorize Extension for Simple Challenge/Response
RFC 2449: POP3 Extension Mechanism
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