/ 
Net-IMAP-Server-0.5
River stage zero No dependents
/ Net::IMAP::Server

NAME

Net::IMAP::Server - A single-threaded multiplexing IMAP server implementation, using Net::Server::Coro.

SYNOPSIS

use Net::IMAP::Server;
Net::IMAP::Server->new(
    port        => 193,
    ssl_port    => 993,
    auth_class  => "Your::Auth::Class",
    model_class => "Your::Model::Class",
    user        => "nobody",
    group       => "nobody",
)->run;

DESCRIPTION

This model provides a complete implementation of the RFC 3501 specification, along with several IMAP4rev1 extensions. It provides separation of the mailbox and message store from the client interaction loop.

Note that, following RFC suggestions, login is not allowed except under a either SSL or TLS. Thus, you are required to have a certs/ directory under the current working directory, containing files server-cert.pem and server-key.pem. Failure to do so will cause the server to fail to start.

INTERFACE

The primary method of using this module is to supply your own model and auth classes, which inherit from Net::IMAP::Server::DefaultModel and Net::IMAP::Server::DefaultAuth. This allows you to back your messages from arbitrary data sources, or provide your own authorization backend. For the most part, the implementation of the IMAP components should be opaque.

METHODS

new PARAMHASH

Creates a new IMAP server object. This doesn't even bind to the sockets; it merely initializes the object. It will die if it cannot find the appropriate certificate files. Valid arguments to new include:

port

The port to bind to. Defaults to port 1430.

ssl_port

The port to open an SSL listener on; by default, this is disabled, and any true value enables it.

auth_class

The name of the class which implements authentication. This must be a subclass of Net::IMAP::Server::DefaultAuth.

model_class

The name of the class which implements the model backend. This must be a subclass of Net::IMAP::Server::DefaultModel.

connection_class

On rare occasions, you may wish to subclass the connection class; this class must be a subclass of Net::IMAP::Server::Connection.

user

The name or ID of the user that the server should run as; this defaults to the current user. Note that privileges are dropped after binding to the port and reading the certificates, so escalated privileges should not be needed. Running as your nobody user or equivilent is suggested.

group

The name or ID of the group that the server should run as; see user, above.

poll_every

How often the current mailbox should be polled, in seconds; defaults to 0, which means it will be polled after every client command.

unauth_commands

The number of commands before unauthenticated users are disconnected. The default is 10; set to zero to disable.

unauth_idle

How long, in seconds, to wait before disconnecting idle connections which have not authenticated yet. The default is 5 minutes; set to zero to disable (which is not advised).

auth_idle

How long, in seconds, to wait before disconnecting authentiated connections. By RFC specification, this must be longer than 30 minutes. The default is an hour; set to zero to disable.

run

Starts the server; this method shouldn't be expected to return. Within this method, $Net::IMAP::Server::Server is set to the object that this was called on; thus, all IMAP objecst have a way of referring to the server -- and though "connection", whatever parts of the IMAP internals they need.

process_request

Accepts a client connection; this method is needed for the Net::Server infrastructure.

DESTROY

On destruction, ensure that we close all client connections and listening sockets.

connections

Returns an arrayref of Net::IMAP::Server::Connection objects which are currently connected to the server.

connection

Returns the currently active Net::IMAP::Server::Connection object, if there is one. This is determined by examining the current coroutine.

concurrent_mailbox_connections [MAILBOX]

This can be called as either a class method or an instance method; it returns the set of connections which are concurrently connected to the given mailbox object (which defaults to the current connection's selected mailbox)

concurrent_user_connections [USER]

This can be called as either a class method or an instance method; it returns the set of connections whose "user" in Net::IMAP::Server::DefaultAuth is the same as the given USER (which defaults to the current connection's user)

capability

Returns the CAPABILITY string for the server. This string my be modified by the connection before being sent to the client (see "capability" in Net::IMAP::Server::Connection).

id

Returns a hash of properties to be conveyed to the client, should they ask the server's identity.

DEPENDENCIES

Coro, Net::Server::Coro

BUGS AND LIMITATIONS

No bugs have been reported.

Please report any bugs or feature requests to bug-net-imap-server@rt.cpan.org, or through the web interface at http://rt.cpan.org.

AUTHOR

Alex Vandiver <alexmv@bestpractical.com>

LICENCE AND COPYRIGHT

Copyright (c) 2008, Best Practical Solutions, LLC. All rights reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.

DISCLAIMER OF WARRANTY

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.