> If the response is undefined the server can do whatever it wants,
including sending back an exception.
Agreed; I fully expect conflicting values to end very badly. :-)
But my point was, the spec explicitly only says that "conflicting values"
may lead to the undefined behaviour. These are non-conflicting, hence
my inference they're allowed (though of course, that is an inference).
Jonathan
On 7 February 2013 15:15, Andrea Aime <[email protected]> wrote:
> On Thu, Feb 7, 2013 at 4:11 PM, Jonathan Moules <
> [email protected]> wrote:
>
>> Another spec that does odd things. :-)
>>
>> Looking at the specs, WMS 1.1.0 doesn't appear to have an opinion on
>> duplicate parameters:
>>
>> *Parameters in a request may be specified in any order. *
>> *
>> *
>> *An OGC Web Service shall be prepared to encounter parameters that are
>> not part of this *
>> *specification. In terms of producing results per this specification,
>> an OGC Web Service *
>> *shall not require such parameters. *
>>
>>
>>
>> But WMS 1.3.0 is clearer:
>>
>> *When request parameters are duplicated with conflicting values, the
>> response from the server may be undefined. *
>> *This International Standard does not mandate which of the duplicated
>> values sent by the client are to be used by *
>> *the server. *
>>
>>
>> However, these aren't conflicting values, they're identical values. Also,
>> the second line strongly implies (to me anyway), that the WMS should still
>> work with duplicate values, otherwise why specify that the server gets to
>> choose which of the parameters to use? And that the server can perform
>> "undefined" behaviour if they're conflicting?
>>
>
> If the response is undefined the server can do whatever it wants,
> including sending back an exception.
>
> However GeoServer by tradition tries to to be backrwards incompatible, so
> apps that used to work against
> version 2.2.x should keep on working in 2.3.x
> I'm afraid the fix won't be simple though...
>
> Cheers
> Andrea
>
> --
> ==
> Our support, Your Success! Visit http://opensdi.geo-solutions.it for more
> information.
> ==
>
> Ing. Andrea Aime
> @geowolf
> Technical Lead
>
> GeoSolutions S.A.S.
> Via Poggio alle Viti 1187
> 55054 Massarosa (LU)
> Italy
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