[jdev] Add a timestamp and/or ID to message stanzas

[Peter Saint-Andre]

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On 9/11/09 2:04 PM, Kurt Zeilenga wrote:
> 
> On Sep 11, 2009, at 6:45 AM, John Stewart wrote:
> 
>> I need to add either a guaranteed unique timestamp, or a timestamp
>> plus a guaranteed unique ID to EVERY message stanza passing through an
>> XMPP server. The timestamp will be displayed in customized clients,
>> and the timestamp or ID, will be used to store and retrieve messages
>> from a database.
>>
>> I've done quite a bit of searching, and so far in the XMPP docs, I've
>> only seen references to message IDs as optional, and timestamps as
>> being used for delayed delivery. So I think I'll be developing a
>> custom extension, in a non-standard namespace.
>>
>> Questions:
>> 1. Have I overlooked an already existing spec for what I need to do?
>> 2. Can I add this functionality using an external XMPP
>> component(XEP-0114), or will I have to write a mod for a specific XMPP
>> server(ejabberd most likely)?
>> 3. Is it easy/possible to create a guaranteed unique timestamps in an
>> ejabberd component?
> 
> I'm aware of two timestamp approaches for XMPP.
> 
> The first is in "Stanza Headers and Internet Metadata" [XEP-0131].
> 
>     <headers xmlns='http://jabber.org/protocol/shim'>
>       <header name='Created'>2004-09-21T03:01:52Z</header>
>     </headers>

Sure, anyone is free to use that right now.

> The second is from the CDCIE chat protocol
> (http://www.jfcom.mil/about/fact_cdcie.html).  It's of the form:
>     <x xmlns='jabber:x:tstamp' tstamp="CCYY-MM-DDThh:mm:ss.sssZ/>

I've never heard of that one.

> For example:
>     <x xmlns='jabber:x:tstamp' tstamp="2008-03-10T12:43:18.002Z/>

At least they are not using urn:xmpp:tstamp. However, I note that
jabber:x:tstamp is improper and that general format has not been used
for many years in the Jabber/XMPP community.

> I favor the former as its Standards Track.

I concur.

Peter

- --
Peter Saint-Andre
https://stpeter.im/


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