Bug 40276

Sorry, I'm confused. Are you actually experiencing this problem with gabble then or are you just letting us know about the change on the server? I just signed on using a gmail account and all contacts seem to be present?

(In reply to comment #1)
> Sorry, I'm confused. Are you actually experiencing this problem with gabble
> then or are you just letting us know about the change on the server? I just
> signed on using a gmail account and all contacts seem to be present?

I use emacs-jabber.el and I am not experiencing this problem. But my room-mate who uses the same client did. Similarly two people were complaining on IRC (#telepathy and #empathy) but apparently others were happy and did not have any problems.

So I am not sure, really, and I have not investigated any further.

From the thread you linked it seems that jabber.el didn't really support XML namespaces properly, a bug which was exposed by the Google server change.

All currently-supported versions of Gabble use Wocky, a namespace-aware XMPP library, so this change shouldn't affect us; it seems to work for me and Jonny, at least, so closing this as WORKSFORME.

But it breaks the N900 :(

(In reply to comment #3)
> From the thread you linked it seems that jabber.el didn't really support XML
> namespaces properly, a bug which was exposed by the Google server change.
> 
> All currently-supported versions of Gabble use Wocky, a namespace-aware XMPP
> library, so this change shouldn't affect us; it seems to work for me and Jonny,
> at least, so closing this as WORKSFORME.

Here is an example of a complaint on #empathy:

<duckybsd> hi, I am useing empathy as gtalk client, since yesterday it    
      suddenly can't show any of my buddies, everything seems ok, empathy has   
      login into my gtalk account. I am using ubuntu 10.04, the Pidgin in the   
      same computer works fine. any suggestions? thanks!

Do you think the version in Ubuntu 10.04 is too old?

Funny thing is that I use emacs-jabber.el as well and it did not break for me,
and neither did Empathy/Telepathy.

Similarly when these Empathy/Telepathy users were complaining, it was working for others.

No clue what to make of it, though.

(In reply to comment #5)
> Do you think the version in Ubuntu 10.04 is too old?

10.04 is Lucid, which has Gabble 0.8 (per <http://packages.ubuntu.com/search?keywords=telepathy-gabble>). That's also what the N900 has. Gabble 0.8 used Loudmouth, which is not really namespace-aware (the same bug that emacs-jabber.el had).

Gabble 0.10 and up should be unaffected, I think, due to using Wocky?

> Funny thing is that I use emacs-jabber.el as well and it did not break for me,
> and neither did Empathy/Telepathy.

Google are probably rolling out a change across multiple servers; your server probably hasn't been upgraded yet?

Created attachment 52484 [details]
gabble log

This log is from a machine with the issue. Contacts don't show (not even in offline contacts) but if someone messages you, the window shows up and you can communicate with the person.

(In reply to comment #7)
> Created attachment 52484 [details]
> gabble log
> 
> This log is from a machine with the issue. Contacts don't show (not even in
> offline contacts) but if someone messages you, the window shows up and you can
> communicate with the person.

This log is incomplete (specifically, it doesn't show Gabble requesting the roster or the server replying, which is one of the first things it does when connecting).  Can you get a complete log by following the method on <http://telepathy.freedesktop.org/wiki/Debugging>?

Created attachment 52488 [details]
Gabble Log with debug on

New Gabble Log with debug options enabled.

tl;dr: This is WONTFIX for Gabble 0.8.x and FIXED in Gabble >= 0.10.0.

----

Here are a couple of the offending IQs:

gabble-DEBUG: connection_disco_cb: got:
<info:query xmlns:info="http://jabber.org/protocol/disco#info"> <info:identity name="Google Talk" type="im" category="server"></info:identity>
 <info:feature var="http://jabber.org/protocol/disco#info"></info:feature>
...
</info:query>

and

<iq to="briancurtis.wx@gmail.com/3089d664" id="296009306548" type="result"><ros:query xmlns:ros="jabber:iq:roster">
...
<ros:item jid="ken@vandine.org" subscription="both" name="Ken VanDine"><ros:group>Ubuntu</ros:group></ros:item>
...

This is valid XMPP but does not match the XML that most XMPP servers will give you, which changes the default namespace (xmlns="...") instead of using namespace prefixes:

    <iq ...>
        <query xmlns="http://jabber.org/protocol/disco#info">
            <identity .../>
            <feature .../>

    <iq ...>
        <query xmlns="jabber:iq:roster">
            <item ...><group>Ubuntu</group></item>

Gabble 0.8 is expected to fail with these IQs: its XMPP implementation is Loudmouth, which does not really support XML namespaces. Realistically, we are not interested in fixing 0.8 any more.

Gabble >= 0.10 is expected to work fine with these IQs: its XMPP implementation, Wocky, is fully namespace-aware.