Net::XMPP2::Ext::OOB - XEP-0066 Out of Band Data
my $con = Net::XMPP2::Connection->new (...);
$con->add_extension (my $disco = Net::XMPP2::Ext::Disco->new);
$con->add_extension (my $oob = Net::XMPP2::Ext::OOB->new);
$disco->enable_feature ($oob->disco_feature);
$oob->reg_cb (oob_recv => sub {
my ($oob, $con, $node, $url) = @_;
if (got ($url)) {
$oob->reply_success ($con, $node);
} else {
$oob->reply_failure ($con, $node, 'not-found');
}
});
$oob->send_url (
$con, 'someonewho@wants.an.url.com', "http://nakedgirls.com/marie_021.jpg",
"Yaww!!! Hot like SUN!",
sub {
my ($error) = @_;
if ($error) { # then error
} else { # everything fine
}
}
)
This module provides a helper abstraction for handling out of band data as
specified in XEP-0066.
The object that is generated handles out of band data requests to
and from others.
There is are also some utility function defined to get for example
the oob info from an XML element:
- url_from_node ($node)
- This function extracts the URL and optionally a description field from the
XML element in $node (which must be a
Net::XMPP2::Node).
$node must be the XML node which
contains the <url> and optionally <desc> element (which is
eg. a <x xmlns='jabber:x:oob'> element)!
(This method searches both, the jabber:x:oob and jabber:iq:oob
namespaces for the <url> and <desc> elements).
It returns a hash reference which should have following
structure:
{
url => "http://someurl.org/mycoolparty.jpg",
desc => "That was a party!",
}
If nothing was found this method returns nothing (undef).
- new ()
- This is the constructor, it takes no further arguments.
- reply_success ($con, $node)
- This method replies to the sender of the oob that the URL was retrieved
successfully.
$con and $node
are the $con and $node
arguments of the "oob_recv" event you
want to reply to.
- reply_failure ($con, $node, $type)
- This method replies to the sender that either the transfer was rejected or
it was not fount.
If the transfer was rejectes you have to set
$type to 'reject', otherwise
$type must be 'not-found'.
$con and $node
are the $con and $node
arguments of the "oob_recv" event you
want to reply to.
- send_url ($con, $jid, $url,
$desc , $cb)
- This method sends a out of band file transfer request to
$jid. $url is the URL that
the otherone has to download. $desc is an optional
description string (human readable) for the file pointed at by the url and
can be undef when you don't want to transmit any description.
$cb is a callback that will be called
once the transfer is successful.
The first argument to the callback will either be undef in
case of success or 'reject' when the other side rejected the file or
'not-found' if the other side was unable to download the file.
These events can be registered to whith
"reg_cb":
- oob_recv => $con, $node, $url
- This event is generated whenever someone wants to send you a out of band
data file. $url is a hash reference like it's
returned by "url_from_node".
$con is the Net::XMPP2::Connection (Or
Net::XMPP2::IM::Connection) the data was received from.
$node is the Net::XMPP2::Node of the
IQ request, you can get the senders JID from the 'from' attribute of
it.
If you fetched the file successfully you have to call
"reply_success". If you want to reject
the file or couldn't get it call
"reply_failure".