On Thu, 14 Aug 2008 15:40:14 +0200
"Zenon Kuder jr." <[EMAIL PROTECTED]> wrote:

> Hi again, I came up with some more comments :-)
> 
> From introductory text of section 2.1:
> "[...] If the data is not cached, the recipient would then retrieve
> the data by sending an IQ-get to the sender (or potentially some
> other entity) [...]"
> 
> I think the "potential other entity" might be an interesting use case
> as well. As stated in my previous mail, I think about the emoticons
> use case. This time for example in a MUC room:
> -participant A sends an xhtml-im message to muc room containg the
> <img> element to reference an emoticon
> - participant B, C, D, E and F receive the message and since they
> don't have the referenced image, they want to retrieve it.
> - there exists a protocol to reference external resources, which
> these entities use to download the referenced data

Maybe some example flows would help. Is this a comment to the current
specs with some changes needed or just another use case?

> Advantages:
> - the sender isn't bloated by multiple requests for the file
Who's contacted then?
> - receiver doesn't leak its jabber id to arbitrary room occupant
This is usually possible to achieve in MUC communications.
> - receiver can have enabled downloads only from trusted jabber ID
This is always possible, isn't it?
> (its servers emoticon service etc)
> 
> Disadvantages:
> - I actually can't see what's better in this approach than in sending
> ordinary HTTP URL, but I thought it was worth discussing. Maybe
> advantage for clients with only one TCP connection possible (bombus)?

HTTP reveals IP address. And the second TCP connection and protocol
implementation servers as another example.

> Best regards,
> Zenon Kuder jr.


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