[MapProxy] WMS default version

[Anne Blankert]

Hello Dirk,

Hmm, I think you're right, I did not carefully look at the difference
between GetCapabilities and GetMap requests.

WMS 1.3.0 spec:
 (paragraph 6.2.4) .... In response to a GetCapabilities request (for which
the VERSION parameter is
optional) that does not specify a version number, the server shall respond
with the highest version it supports.
In response to a GetCapabilities request containing a version number that
the server implements, the server
shall send that version.....

WMS 1.1.1 spec:
(paragraph 6.1.4)...If no version number is specified in the request, the
server shall respond with the highest
version it understands and label the response accordingly. ...

I just tried GetCapabilities on MapProxy without version and received a
version 1.1.1 capabilities document. However, MapProxy does also support
1.3.0.

I now believe you are right and the current MapProxy behaviour does not
conform to this part of the specification.

Anne












2015-06-24 8:16 GMT+02:00 <dirk.thalheim at bkg.bund.de>:

>  Hello Anne,
>
>
>
> thanks for your answer. I know, Version 1.3.0. introduced some confusing
> changes ;-)
>
>
>
> Unfortunately I can’t find your statement for VERSION parameter
> requirement in the WMS specs.
>
>
>
> WMS 1.1.1 says:
>
> -          GetCapabilities Operation: VERSION is optional
>
> -          GetMap Operation: VERSION is required
>
> -          “If no version number is specified in the request, the server
> shall respond with the highest version it understands and label the
> response accordingly.”
>
> WMS 1.3.0 says:
>
> -          “The VERSION parameter is mandatory in requests other than
> GetCapabilities.”
>
> -          “In response to a GetCapabilities request (for which the
> VERSION parameter is optional) that does not specify a version number, the
> server shall respond with the highest version it supports.”
>
>
>
> So in my eyes MapProxy should respond with version 1.3.0 for
> GetCapabilities requests. For all other requests the VERSION parameter is
> mandatory.
>
>
>
> Kind regards,
>
>
>
> Dirk
>
>
>
>
>
> *Von:* Anne Blankert [mailto:anne.blankert at geodan.nl]
> *Gesendet:* Dienstag, 23. Juni 2015 17:41
> *An:* Thalheim, Dirk
> *Cc:* mapproxy at lists.osgeo.org
> *Betreff:* Re: [MapProxy] WMS default version
>
>
>
> Hello Dirk,
>
>
>
> Newer does not always mean better. But that is probably not the reason for
> this case.
>
>
>
> In WMS specification 1.1.1., the VERSION parameter is optional.
>
> In WMS specification 1.3.0., the VERSION parameter is mandatory.
>
>
>
> So, if you do not specify a version, the service should fall back to 1.1.1.
>
>
>
> Anne Blankert
>
> Geodan
>
>
>
> 2015-06-23 16:33 GMT+02:00 <dirk.thalheim at bkg.bund.de>:
>
>  Dear list,
>
>
>
> I’ve noticed following behavior in MapProxy: on WMS requests to MapProxy
> without a VERSION parameter it’s assumed that the default version is 1.1.1.
> Shouldn’t this be 1.3.0 as this is the highest supported WMS version?
>
>
>
> It seems to be a hard coded behavior. It would be nice if this default
> version could be configured. Are there any plans to make this configurable
> or increase the default version?
>
>
>
> Kind regards,
>
>
>
> Dirk Thalheim
>
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>
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>
>
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>
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>
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>
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>
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>
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