[OTR-dev] html in otr messages

[Peter Saint-Andre]

Ian Goldberg wrote:
> On Fri, Mar 23, 2007 at 02:55:23AM +1100, Scott Ellis wrote:
>> >From Wintermute on the Miranda forum:

>> I had a lengthy email conversation with Ian Goldberg, one of the authors of
>> OTR, libotr and the gaim-otr plugin. If you read the OTR spec carefully, you
>> will see that it specifies optional HTML-formating in the plaintext. As
>> OTR-messages are merely encapsulated using Jabber (or other) protocols, Ian
>> thinks (as do I after thinking about it) that the OTR specs supersede the
>> standards of "lower level" protocols such as XMPP. It is the job of an OTR
>> plugin to process the HTML tags in the plaintext, if they are not used by
>> the client it's the plugins job to strip them.
>> If you don't see it that way, I suggest you contact the otr-dev
>> mailinglist."
>>
>> I think of it quite the opposite way - OTR simply encapsulates protocol
>> messages
>>
>> OTR would have quite a job to do trying to detect whether the client
>> supports HTML in Miranda - there are so many messaging modules etc. And
>> they're likely to change at any time - it would make maintainence difficult.
>> I don't think tracking the client's capabilities is the plugin's job.
> 
> You're right; I think that whatever calls the OTR plugin should be able
> to understand what the plugin outputs.  

Does this apply only to [X]HTML formatting? The reason I ask is that 
people put other kinds of extensions in Jabber messages, and in fact we 
have packet types other than <message/> (<presence/> and <iq/>). People 
would like to encrypt the entire packet for all XMPP packet types, not 
just the plaintext (or XHTML-formatted) message body, but we have not 
figured out how to do that in OTR, which is one reason why we are 
pursuing other approaches to end-to-end encryption:

http://www.xmpp.org/extensions/xep-0116.html

Peter

-- 
Peter Saint-Andre
XMPP Standards Foundation
http://www.xmpp.org/xsf/people/stpeter.shtml

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