############################################################################## # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Library General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library 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 # Library General Public License for more details. # # You should have received a copy of the GNU Library General Public # License along with this library; if not, write to the # Free Software Foundation, Inc., 59 Temple Place - Suite 330, # Boston, MA 02111-1307, USA. # # Copyright (C) 1998-2004 Jabber Software Foundation http://jabber.org/ # ############################################################################## package Net::Jabber::Component; =head1 NAME Net::Jabber::Component - Jabber Component Library =head1 SYNOPSIS Net::Jabber::Component is a module that provides a developer easy access to developing server components in the Jabber Instant Messaging protocol. =head1 DESCRIPTION Component.pm seeks to provide enough high level APIs and automation of the low level APIs that writing a Jabber Component in Perl is trivial. For those that wish to work with the low level you can do that too, but those functions are covered in the documentation for each module. Net::Jabber::Component provides functions to connect to a Jabber server, login, send and receive messages, operate as a server side component, and disconnect. You can use all or none of the functions, there is no requirement. For more information on how the details for how Net::Jabber is written please see the help for Net::Jabber itself. For a full list of high level functions available please see Net::Jabber::Protocol and Net::XMPP::Protocol. =head2 Basic Functions use Net::Jabber; $Con = Net::Jabber::Component->new(); $Con->Execute(hostname=>"jabber.org", componentname=>"service.jabber.org", secret=>"XXXX" ); # # For the list of available functions see Net::XMPP::Protocol. # $Con->Disconnect(); =head1 METHODS =head2 Basic Functions new(debuglevel=>0|1|2, - creates the Component object. debugfile debugfile=>string, should be set to the path for the debug debugtime=>0|1) log to be written. If set to "stdout" then the debug will go there. debuglevel controls the amount of debug. For more information about the valid setting for debuglevel, debugfile, and debugtime see Net::Jabber::Debug. AuthSend(secret=>string) - Perform the handshake and authenticate with the server. Connect(hostname=>string, - opens a connection to the server port=>integer, based on the value of componentname=>string, connectiontype. The only valid connectiontype=>string) setting is: accept - TCP/IP remote connection In the future this might be used again by offering new features. If accept then it connects to the server listed in the hostname value, on the port listed. The defaults for the two are localhost and 5269. Note: A change from previous versions is that Component now shares its core with Client. To that end, the secret should no longer be used. Call AuthSend after connecting. Better yet, use Execute. Connected() - returns 1 if the Component is connected to the server, and 0 if not. Disconnect() - closes the connection to the server. Execute(hostname=>string, - Generic inner loop to handle port=>int, connecting to the server, calling secret=>string, Process, and reconnecting if the componentname=>string, connection is lost. There are four connectiontype=>string, callbacks available that are called connectattempts=>int, at various places in the loop. connectsleep=>int) onconnect - when the component connects to the server. onauth - when the component has completed its handshake with the server this will be called. onprocess - this is the most inner loop and so gets called the most. Be very very careful what you put here since it can *DRASTICALLY* affect performance. ondisconnect - when connection is lost. onexit - when the function gives up trying to connect and exits. The arguments are passed straight on to the Connect function, except for connectattempts and connectsleep. connectattempts is the number of time that the Component should try to connect before giving up. -1 means try forever. The default is -1. connectsleep is the number of seconds to sleep between each connection attempt. Process(integer) - takes the timeout period as an argument. If no timeout is listed then the function blocks until a packet is received. Otherwise it waits that number of seconds and then exits so your program can continue doing useful things. NOTE: This is important for GUIs. You need to leave time to process GUI commands even if you are waiting for packets. The following are the possible return values, and what they mean: 1 - Status ok, data received. 0 - Status ok, no data received. undef - Status not ok, stop processing. IMPORTANT: You need to check the output of every Process. If you get an undef then the connection died and you should behave accordingly. =head1 AUTHOR Ryan Eatmon =head1 COPYRIGHT This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =cut use strict; use Carp; use Net::XMPP::Connection; use Net::Jabber::Protocol; use base qw( Net::XMPP::Connection Net::Jabber::Protocol ); use vars qw( $VERSION ); $VERSION = "2.0"; use Net::Jabber::XDB; sub new { srand( time() ^ ($$ + ($$ << 15))); my $proto = shift; my $self = { }; bless($self, $proto); $self->init(@_); $self->{SERVER}->{port} = 5269; $self->{SERVER}->{namespace} = "jabber:component:accept"; $self->{SERVER}->{allow_register} = 0; return $self; } sub AuthSend { my $self = shift; $self->_auth(@_); } sub _auth { my $self = shift; my (%args) = @_; $self->{STREAM}->SetCallBacks(node=>undef); $self->Send("".Digest::SHA::sha1_hex($self->{SESSION}->{id}.$args{secret}).""); my $handshake = $self->Process(); if (!defined($handshake) || ($#{$handshake} == -1) || (ref($handshake->[0]) ne "XML::Stream::Node") || ($handshake->[0]->get_tag() ne "handshake")) { $self->SetErrorCode("Bad handshake."); return ("fail","Bad handshake."); } shift(@{$handshake}); foreach my $node (@{$handshake}) { $self->CallBack($self->{SESSION}->{id},$node); } $self->{STREAM}->SetCallBacks(node=>sub{ $self->CallBack(@_) }); return ("ok",""); } sub _connection_args { my $self = shift; my (%args) = @_; my %connect; $connect{componentname} = $args{componentname}; $connect{hostname} = $args{hostname}; $connect{port} = $args{port} if exists($args{port}); $connect{connectiontype} = $args{connectiontype} if exists($args{connectiontype}); $connect{timeout} = $args{connecttimeout} if exists($args{connecttimeout}); $connect{tls} = $args{tls} if exists($args{tls}); return %connect; } 1;