Hi!
I've been trying to implement a demo application for my publish/subscribe
extension. My experience so far is all but rosy, in fact I'm tearing my hair
out.
Let me explain what I did so far:
I've tried basic usage of the server with Pidgin and Gajim, both cannot connect
to the server due to XML parse errors or programming errors? Pidgin is
widely used
and Gajim includes support for the pubsub extension.
Smack to the rescue! Using smack I could connect to the server and send a few
messages back and forth. As soon as I switch to the pubsub extension for
smack[1] the whole thing breaks down again.
Let me show a small part of the code I wanted to write (c1 and c2 are
XMPPConnections, one for user1 and one for user2):
PubSubManager psm1 = new PubSubManager(c1);
PubSubManager psm2 = new PubSubManager(c2);
// create test node by user1
Node test1 = psm1.getNode("test");
test1.subscribe("[email protected]");
// subscribe user2 to test node
Node test2 = psm2.getNode("test");
test2.subscribe("[email protected]");
// user1 publishes some item
Item<PublishItem> item = new Item<PublishItem>("something");
test1.send(item);
In plaintext:
- user1: create a node "test"
- user1: subscribe to "test"
- user2: lookup "test"
- user2: subscribe to "test"
- user1: send a message to "test"
- user1: receive notification (not shown)
- user2: receive notification (not shown)
The problem starts with the subscribe request. It seems that Vysper
does not add the "from" address
of the sender (see RFC3920, 9.1.2) to the stanzas.
So, for today I've got to stop. I'll continue tomorrow. After writing this mail
I've a better picture where to start tomorrow (Rubber-duck method: [2]). If
anyone has a hint or an suggestion I'd still be very grateful!
1: http://github.com/squaremo/smackx-pubsub/tree/master
2: http://lists.ethernal.org/oldarchives/cantlug-0211/msg00174.html
Thanks for listening,
Michael
