[Standards] Images in chat

Goffi goffi at goffi.org
Sun Mar 13 18:09:45 UTC 2016


Jingle file transfer could be used for that with and "xmpp:" URI, but we still 
don't have Jingle URI (this would be easy to solve though).
There is also XEP-0231 but it's more suitable for small images.


Le dimanche 13 mars 2016, 15:52:01 Peter Waher a écrit :
> Hello Fabian
> Thanks for your response.
> > > So, there are two things that are needed:
> > > 
> > > 1) Transfer of the image content. This can be done in various ways.
> > > 2) The receiver needs to understand the context, i.e. that the image
> > > should be displayed in the chat window (not saved to file, shown in a
> > > popup window, etc.)
> > > 
> > > What solutions are available? I know I can solve this using XHTML-IM
> > > (XEP-0071) and HTTP over XMPP (XEP-0332), if both are supported on both
> > > clients. XHTML-IM allows me to include an <IMG> tag with a link to the
> > > image using the httpx URI scheme (HTTP over XMPP). This scheme defines
> > > where the image can be gotten, and negotiates how the image is to be
> > > transferred. What I wanted to know is, are there any other alternatives?
> > 
> > maybe the easiest way would be to use XEP-0363 (HTTP File upload) and
> > then use XEP-0066 (Out of Band Data).
> > 
> > As you mentioned, you could then also use XEP-0071 (XHTML-IM) instead of
> > XEP-0066, but personally I would always prefer XEP-0066 and leave it up
> > to the client implementation to decide how to display the file.
> That would require uploading the image to a third party, in this case an
> HTTP server. That is undesireable. The image should be considered private
> and shared only between the two communicating parties. I conclude that
> there are no other ways than by using XHTML-IM and HTTP over XMPP. Best
> regards,Peter Waher

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