[ejabberd] pubsub item not delivered if subscriber offline

Kirk Bateman kirk.bateman at gmail.com
Fri Jan 29 12:25:36 MSK 2010


Liam,

So that sounds like an unclean disconnect ? Any possibilities of  
actually sending an unavailable presence before closing ? Not sure if  
that is actually possible but if it is I'd be interested to know. Some  
kind of JavaScript onclose event or something.

Regards

Kirk

On 29 Jan 2010, at 08:32, Liam <ejabberd at networkimprov.net> wrote:

> Well it works *most* of the time...
>
> If I sign-out a node subscriber (by closing the tab for my strophe- 
> based client), and publish another item to that node right away, the  
> subscriber may not get the published item when he signs on again.
>
> I really need reliable delivery here -- unfortunately the pubsub  
> spec has iq notifications only for presence-based delivery nodes...
>
> Starting to wonder if I should have tried an MQ service instead of  
> xmpp pubsub...
>
>
> On Thu, Jan 28, 2010 at 12:14 PM, Liam <ejabberd at networkimprov.net>  
> wrote:
> This worked, thanks!
>
> <field var='pubsub#notification_type'><value>normal</value></field>
>
> <field var='pubsub#send_last_published_item'><value>never</value></ 
> field>
>
>
> On Tue, Jan 26, 2010 at 1:59 PM, Liam <ejabberd at networkimprov.net>  
> wrote:
> I think send_last_published_item = on_sub_and_presence is wrong for  
> my case... Multiple items may be published while a subscriber is  
> offline. Also I don't want a new subscriber to get previously  
> published items...
>
> I'd expect the behavior I see only if presence_based_delivery is  
> true, and for this node it's false, the default.
>
> Try with :
> <field var='pubsub#send_last_published_item' type='list-single'>
> <value>on_sub_and_presence</value>
> </field>
>
>
> On Tue, Jan 26, 2010 at 12:35 PM, Liam <ejabberd at networkimprov.net>  
> wrote:
> Using 2.1.1 on WinXP...
>
> Publishing to a node configured as follows, the subscriber gets the  
> item if online, but if offline doesn't get the item on next login.  
> Shouldn't the item go to the user's offline queue?
>
> Subscriber creates and subscribes to the node:
>
> <iq from='me at localhost/reprev' to='pubsub.localhost'
>      type='set' id='8776' xmlns='jabber:client'>
>    <pubsub xmlns='http://jabber.org/protocol/pubsub'>
>      <create node='me'/>
>      <configure><x xmlns='jabber:x:data' type='submit'>
>        <field var='FORM_TYPE' type='hidden'><value>http://jabber.org/protocol/pubsub#node_config 
> </value></field>
>        <field var='pubsub#notify_retract'><value>0</value></field>
>        <field var='pubsub#persist_items'><value>0</value></field>
>        <field var='pubsub#publish_model'><value>open</value></field>
>        <field var='pubsub#access_model'><value>whitelist</value></ 
> field>
>        <field var='pubsub#send_last_published_item'><value>never</ 
> value></field>
> </x></configure></pubsub></iq>
>
> <iq from='me at localhost/reprev' to='pubsub.localhost'
>      type='set' id='8777' xmlns='jabber:client'>
>   <pubsub xmlns='http://jabber.org/protocol/pubsub'>
>      <subscribe node='me' jid='me at localhost/reprev'/>
> </pubsub></iq>
>
> Relevant config:
>   {mod_offline,  []},
>   {mod_pubsub,   [ % requires mod_caps
>           {access_createnode, pubsub_createnode},
>           {ignore_pep_from_offline, true},
>           {last_item_cache, false},
>           {plugins, ["flat", "hometree", "pep"]}
>          ]},
>
>
>
>
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