Discussion:
looking for atom advice (newbie atom developer)
Miles Fidelman
2011-09-19 15:46:10 UTC
Permalink
Hello Folks,

Please excuse me if this is the wrong list for these questions, but
there don't seem to be very many places where atom is actively discussed
(if anyone can point me at a better community for developers working
with atom, please let me know).

We're considering using Atom in a somewhat non-standard way - as a
vehicle for transporting HTML content (think web pages, single-page
JavaScript applications). It seems like Atom is perfect for this, but
the specifications are a bit vague in several areas, and implementations
even more so.

RE. SPECS:

The spec. for content elements, of type HTML (RFC4287, par. 3.1.1.2.),
says "If the value of "type" is "html", the content of the Text
construct .... SHOULD be suitable for handling as HTML [HTML
<http://tools.ietf.org/html/rfc4287#ref-HTML>] ... (and) SHOULD be such
that it could validly appear directly within an HTML <DIV> element,
after unescaping. Atom Processors that display such content MAY use that
markup to aid in its display."

This implies that the notional use of an HTML content element is for a
snippet of HTML, but does not seem to preclude embedding an entire web
page, including JavaScript, within an HTML content element.

Questions:

1. Is this a correct interpretation?

2. If so, does anybody know of anybody who's doing this kind of thing?

3. Can anybody suggest any tools, libraries for generating Atom with
complicated content elements, posting it via Atompub, processing posts
on a server, and then parsing feeds on a client? It seems like all of
the tools I've been able to find view Atom as nothing more than a
replacement for RSS as a way to post and read blog feeds.

4. Any thoughts or pointers vis-a-vis how common browsers handle Atom
feeds. It's already clear that they handle/render feeds differently
when they're accessed via HTTP, than when the same XML is read from a
file. It sure would be nice to find some material that would help me
understand what's going on.

Thanks very much for any assistance you can offer.

Miles Fidelman
--
In theory, there is no difference between theory and practice.
In<fnord> practice, there is. .... Yogi Berra
Jan Algermissen
2011-09-19 16:02:13 UTC
Permalink
Post by Miles Fidelman
Hello Folks,
Please excuse me if this is the wrong list for these questions, but there don't seem to be very many places where atom is actively discussed (if anyone can point me at a better community for developers working with atom, please let me know).
We're considering using Atom in a somewhat non-standard way - as a vehicle for transporting HTML content (think web pages, single-page JavaScript applications). It seems like Atom is perfect for this, but the specifications are a bit vague in several areas, and implementations even more so.
The spec. for content elements, of type HTML (RFC4287, par. 3.1.1.2.), says "If the value of "type" is "html", the content of the Text construct .... SHOULD be suitable for handling as HTML [HTML <http://tools.ietf.org/html/rfc4287#ref-HTML>] ... (and) SHOULD be such that it could validly appear directly within an HTML <DIV> element, after unescaping. Atom Processors that display such content MAY use that markup to aid in its display."
This implies that the notional use of an HTML content element is for a snippet of HTML, but does not seem to preclude embedding an entire web page, including JavaScript, within an HTML content element.
1. Is this a correct interpretation?
No. A complete HTML document cannot be put inside an HTML <div>. Why do you consider the text to be vague?

You can simply put the HTML doc in there and make the type a proper mime type, e.g. text/html. Then the limitation of type="HTML" does not apply.
Post by Miles Fidelman
2. If so, does anybody know of anybody who's doing this kind of thing?
No.
Post by Miles Fidelman
3. Can anybody suggest any tools, libraries for generating Atom with complicated content elements, posting it via Atompub, processing posts on a server, and then parsing feeds on a client? It seems like all of the tools I've been able to find view Atom as nothing more than a replacement for RSS as a way to post and read blog feeds.
Apache Abdere should work fine.
Post by Miles Fidelman
4. Any thoughts or pointers vis-a-vis how common browsers handle Atom feeds. It's already clear that they handle/render feeds differently when they're accessed via HTTP, than when the same XML is read from a file. It sure would be nice to find some material that would help me understand what's going on.
No - but that should be quite simple to check, I assume.

Jan
Post by Miles Fidelman
Thanks very much for any assistance you can offer.
Miles Fidelman
--
In theory, there is no difference between theory and practice.
In<fnord> practice, there is. .... Yogi Berra
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