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.\" ========================================================================
.\"
.IX Title "AnyEvent::XMPP::Ext::Disco 3pm"
.TH AnyEvent::XMPP::Ext::Disco 3pm "2012-01-23" "perl v5.14.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
AnyEvent::XMPP::Ext::Disco \- Service discovery manager class for XEP\-0030
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&   use AnyEvent::XMPP::Ext::Disco;
\&
\&   my $con = AnyEvent::XMPP::IM::Connection\->new (...);
\&   $con\->add_extension (my $disco = AnyEvent::XMPP::Ext::Disco\->new);
\&   $disco\->request_items ($con, \*(Aqromeo@montague.net\*(Aq, undef,
\&      sub {
\&         my ($disco, $items, $error) = @_;
\&         if ($error) { print "ERROR:" . $error\->string . "\en" }
\&         else {
\&            ... do something with the $items ...
\&         }
\&      }
\&   );
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module represents a service discovery manager class.
You make instances of this class and get a handle to send
discovery requests like described in \s-1XEP\-0030\s0.
.PP
It also allows you to setup a disco\-info/items tree
that others can walk and also lets you publish disco information.
.PP
This class is derived from AnyEvent::XMPP::Ext and can be added as extension to
objects that implement the AnyEvent::XMPP::Extendable interface or derive from
it.
.SH "METHODS"
.IX Header "METHODS"
.IP "\fBnew (%args)\fR" 4
.IX Item "new (%args)"
Creates a new disco handle.
.ie n .IP "\fBset_identity ($category, \fB$type\fB, \f(BI$name\fB)\fR" 4
.el .IP "\fBset_identity ($category, \f(CB$type\fB, \f(CB$name\fB)\fR" 4
.IX Item "set_identity ($category, $type, $name)"
This sets the identity of the top info node.
.Sp
\&\f(CW$name\fR is optional and can be undef.  Please note that \f(CW$name\fR will
overwrite all previous set names! If \f(CW$name\fR is undefined then
no previous set name is overwritten.
.Sp
For a list of valid identites look at:
.Sp
.Vb 1
\&   http://www.xmpp.org/registrar/disco\-categories.html
.Ve
.Sp
Valid identity \f(CW$type\fRs for \f(CW\*(C`$category = "client"\*(C'\fR may be:
.Sp
.Vb 6
\&   bot
\&   console
\&   handheld
\&   pc
\&   phone
\&   web
.Ve
.ie n .IP "\fBunset_identity ($category, \fB$type\fB)\fR" 4
.el .IP "\fBunset_identity ($category, \f(CB$type\fB)\fR" 4
.IX Item "unset_identity ($category, $type)"
This function removes the identity \f(CW$category\fR and \f(CW$type\fR.
.IP "\fBenable_feature ($uri)\fR" 4
.IX Item "enable_feature ($uri)"
This method enables the feature \f(CW$uri\fR, where \f(CW$uri\fR
should be one of the values from the \fBName\fR column on:
.Sp
.Vb 1
\&   http://www.xmpp.org/registrar/disco\-features.html
.Ve
.Sp
These features are enabled by default:
.Sp
.Vb 2
\&   http://jabber.org/protocol/disco#info
\&   http://jabber.org/protocol/disco#items
.Ve
.Sp
You can pass also a list of features you want to enable to \f(CW\*(C`enable_feature\*(C'\fR!
.IP "\fBdisable_feature ($uri)\fR" 4
.IX Item "disable_feature ($uri)"
This method enables the feature \f(CW$uri\fR, where \f(CW$uri\fR
should be one of the values from the \fBName\fR column on:
.Sp
.Vb 1
\&   http://www.xmpp.org/registrar/disco\-features.html
.Ve
.Sp
You can pass also a list of features you want to disable to \f(CW\*(C`disable_feature\*(C'\fR!
.ie n .IP "\fBrequest_items ($con, \fB$dest\fB, \f(BI$node\fB, \f(CB$cb\fB)\fR" 4
.el .IP "\fBrequest_items ($con, \f(CB$dest\fB, \f(CB$node\fB, \f(CB$cb\fB)\fR" 4
.IX Item "request_items ($con, $dest, $node, $cb)"
This method does send a items request to the \s-1JID\s0 entity \f(CW$from\fR.
\&\f(CW$node\fR is the optional node to send the request to, which can be
undef.
.Sp
\&\f(CW$con\fR must be an instance of AnyEvent::XMPP::Connection or a subclass of it.
The callback \f(CW$cb\fR will be called when the request returns with 3 arguments:
the disco handle, an AnyEvent::XMPP::Ext::Disco::Items object (or undef)
and an AnyEvent::XMPP::Error::IQ object when an error occured and no items
were received.
.Sp
The timeout of the request is the \s-1IQ\s0 timeout of the connection \f(CW$con\fR.
.Sp
.Vb 3
\&   $disco\->request_items ($con, \*(Aqa@b.com\*(Aq, undef, sub {
\&      my ($disco, $items, $error) = @_;
\&      die $error\->string if $error;
\&
\&      # do something with the items here ;_)
\&   });
.Ve
.ie n .IP "\fBrequest_info ($con, \fB$dest\fB, \f(BI$node\fB, \f(CB$cb\fB)\fR" 4
.el .IP "\fBrequest_info ($con, \f(CB$dest\fB, \f(CB$node\fB, \f(CB$cb\fB)\fR" 4
.IX Item "request_info ($con, $dest, $node, $cb)"
This method does send a info request to the \s-1JID\s0 entity \f(CW$from\fR.
\&\f(CW$node\fR is the optional node to send the request to, which can be
undef.
.Sp
\&\f(CW$con\fR must be an instance of AnyEvent::XMPP::Connection or a subclass of it.
The callback \f(CW$cb\fR will be called when the request returns with 3 arguments:
the disco handle, an AnyEvent::XMPP::Ext::Disco::Info object (or undef)
and an AnyEvent::XMPP::Error::IQ object when an error occured and no items
were received.
.Sp
The timeout of the request is the \s-1IQ\s0 timeout of the connection \f(CW$con\fR.
.Sp
.Vb 3
\&   $disco\->request_info ($con, \*(Aqa@b.com\*(Aq, undef, sub {
\&      my ($disco, $info, $error) = @_;
\&      die $error\->string if $error;
\&
\&      # do something with info here ;_)
\&   });
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
Robin Redeker, \f(CW\*(C`<elmex at ta\-sa.org>\*(C'\fR, \s-1JID:\s0 \f(CW\*(C`<elmex at jabber.org>\*(C'\fR
.SH "COPYRIGHT & LICENSE"
.IX Header "COPYRIGHT & LICENSE"
Copyright 2007, 2008 Robin Redeker, all rights reserved.
.PP
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.