NAME

       AnyEvent::XMPP::Ext::OOB - XEP-0066 Out of Band Data

SYNOPSIS

          my $con = AnyEvent::XMPP::Connection->new (...);
          $con->add_extension (my $disco = AnyEvent::XMPP::Ext::Disco->new);
          $con->add_extension (my $oob = AnyEvent::XMPP::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
                }
             }
          )

DESCRIPTION

       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:

FUNCTIONS

       url_from_node ($node)
           This  function  extracts  the  URL  and  optionally a description field from the XML element in $node
           (which must be a AnyEvent::XMPP::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).

METHODS

       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.

EVENTS

       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 AnyEvent::XMPP::Connection (Or  AnyEvent::XMPP::IM::Connection)  the  data  was  received
           from.

           $node  is  the  AnyEvent::XMPP::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".

perl v5.36.0                                       2022-12-06                      AnyEvent::XMPP::Ext::OOB(3pm)