[mapguide-trac] #1377: Potential issue for NegotiatedVersion of OgcServer

[MapGuide Open Source]

#1377: Potential issue for NegotiatedVersion of OgcServer
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   Reporter:  liuar          |       Owner:  liuar
       Type:  defect         |      Status:  new  
   Priority:  low            |   Milestone:       
  Component:  WMS Interface  |     Version:  2.2.0
   Severity:  trivial        |    Keywords:       
External_id:                 |  
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Description changed by brucedechant:

Old description:

> This is the section about versions negotiation in WMS specification[[BR]]
> [[BR]]
> 1. If a version unknown to the server and higher than the lowest
> supported version is requested, the server should send the highest
> version it supports that is less than the requested version.
> [[BR]]
> [[BR]]
> 2. If a version lower than any of those known to the server is requested,
> then the server shall send the lowest version it supports.
> [[BR]]
> [[BR]]
> So, for the current implementation of !OgcServer in webTier, there's a
> potential issue for an unknown version which is just greater than the
> lowest supported version and less than any other supported versions.
> [[BR]]
> For example, MapGuide support 1.0.0 and 1.1.0. if there's a 1.0.5
> request, MapGuide should reply a 1.0.0. However, the response is the
> highest version in the current implementation.
> [BR]]
> [[BR]]
> MapGuide already supports all the possible versions of WMS, nervertheless
> it's still a potential issue.

New description:

 This is the section about versions negotiation in WMS specification[[BR]]
 [[BR]]
 1. If a version unknown to the server and higher than the lowest supported
 version is requested, the server should send the highest version it
 supports that is less than the requested version.
 [[BR]]
 [[BR]]
 2. If a version lower than any of those known to the server is requested,
 then the server shall send the lowest version it supports.
 [[BR]]
 [[BR]]
 So, for the current implementation of !OgcServer in webTier, there's a
 potential issue for an unknown version which is just greater than the
 lowest supported version and less than any other supported versions.
 [[BR]]
 For example, MapGuide support 1.0.0 and 1.1.0. if there's a 1.0.5 request,
 MapGuide should reply a 1.0.0. However, the response is the highest
 version in the current implementation.
 [[BR]]
 [[BR]]
 MapGuide already supports all the possible versions of WMS, nervertheless
 it's still a potential issue.

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Ticket URL: <http://trac.osgeo.org/mapguide/ticket/1377#comment:2>
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