[DAS2] Content type for DAS XML responses

[Lincoln Stein]

Beautiful!  Thank you for doing that.

Lincoln

On Monday 20 December 2004 09:42 pm, Chervitz, Steve wrote:
> I just committed a new version of das2_get.html with this change:
>
> RCS file: /home/repository/biodas/das/das2/das2_get.html,v
> ----------------------------
> revision 1.2
> date: 2004/12/21 02:43:42;  author: sac;  state: Exp;  lines: +50
> -49 Converted mime types from application/x-das-foo to
> text/x-das-foo+xml for XML types. For non-XML types omitting the
> '+xml' and adding an 'x-' suffix to the right of the slash as
> needed.
>
> Steve
>
> > From: Allen Day <allenday at ucla.edu>
> > Date: Fri, 17 Dec 2004 23:14:54 -0800
> > To: Andrew Dalke <dalke at dalkescientific.com>
> > Cc: <das2 at portal.open-bio.org>
> > Subject: Re: [DAS2] Content type for DAS XML responses
> >
> > sounds good, can we get a patch to the spec so i can make the
> > necessary implementation changes and test against browsers? 
> > thanks!
> >
> > -allen
> >
> > On Fri, 17 Dec 2004, Andrew Dalke wrote:
> >> Steve:
> >>> Currently, the DAS/2 spec dictates that responses should have
> >>> content-types
> >>> like:
> >>>
> >>>   application/x-das-source
> >>>   application/x-das-types
> >>>   application/x-das-region
> >>>
> >>> Changing these to be 'text/xml' would be more convenient since
> >>> the content
> >>> would then be viewable in a standard web browser.
> >>
> >> A browser should send something like
> >>
> >> Accept: */*
> >>    or
> >> Accept: application/xml
> >>
> >> or some other generic content type in its headers.  One solution
> >> to at least consider is that IF a client does not request
> >> application/x-das-whatever THEN return application/xml .  I do
> >> not believe this is appropriate though.
> >>
> >>>   text/xml; dasformat=source
> >>>   text/xml; dasformat=types
> >>>   text/xml; dasformat=region
> >>
> >> I get confused; is it "text/xml" or "application/xml"?  Ah-ha!
> >> RFC 3023 says (  http://www.faqs.org/rfcs/rfc3023.html )
> >>
> >>     If an XML document -- that is, the unprocessed, source XML
> >> document -- is readable by casual users, text/xml is preferable
> >> to application/xml.  MIME user agents (and web user agents) that
> >> do not have explicit support for text/xml will treat it as
> >> text/plain, for example, by displaying the XML MIME entity as
> >> plain text. Application/xml is preferable when the XML MIME
> >> entity is unreadable by casual users.
> >>
> >> That RFC is relevant to this discussion.  If I understand it
> >> correctly it recommends using something more like
> >>
> >>    text/x-das-source+xml
> >>
> >> This would be understood by RFC 3023 compliant clients as
> >> containing an XML document, by DAS clients to understand
> >> which DAS XML format is used, and by generic clients to
> >> contain an XML document.
> >>
> >>> The corresponding compact content-types could be:
> >>>
> >>>   text/plain; dasformat=compact-source
> >>>   text/plain; dasformat=compact-types
> >>>   text/plain; dasformat=compact-region
> >>
> >> There should be no need for this.  A client should use
> >> the catch-all text/* handler for text/x-compact-source
> >> and show it as normal text.
> >>
> >>> And other types could be:
> >>>
> >>>   text/plain; dasformat=fasta
> >>>   text/plain; dasformat=gff3
> >>>   text/plain; dasformat=bed
> >>
> >> Same for these.  What's the problem with
> >>    text/x-fasta , etc.?
> >>
> >> See also the discussion in appendix A.5 which describes
> >> practical problems about using parameter in MIME types.
> >>
> >>                                       Andrew
> >>                                       dalke at dalkescientific.com
> >>
> >> _______________________________________________
> >> DAS2 mailing list
> >> DAS2 at portal.open-bio.org
> >> http://portal.open-bio.org/mailman/listinfo/das2
> >
> > _______________________________________________
> > DAS2 mailing list
> > DAS2 at portal.open-bio.org
> > http://portal.open-bio.org/mailman/listinfo/das2
>
> _______________________________________________
> DAS2 mailing list
> DAS2 at portal.open-bio.org
> http://portal.open-bio.org/mailman/listinfo/das2

-- 
Lincoln D. Stein
Cold Spring Harbor Laboratory
1 Bungtown Road
Cold Spring Harbor, NY 11724

NOTE: Please copy Sandra Michelsen <michelse at cshl.edu> on
all emails regarding scheduling and other time-critical topics.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
URL: <http://lists.open-bio.org/pipermail/das2/attachments/20041221/6ac7dae4/attachment.sig>