[Qgis-user] wfs problems

[Jonathan Moules]

Hi Juerg,

I've looked into this and suspect the problem is actually with the 
configuration of the server.

This URL gets the GetCapabilities document and works:

https://map.geo.sz.ch/main/wsgi/mapserv_proxy?REQUEST=GetCapabilities&service=wfs

If you look in the document you'll see that it's declaring the following 
URL as being for GetCapabilities:
<ows:Operation name="GetCapabilities">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:type="simple" 
xlink:href="https://map.geo.sz.ch/main/mapserv?"/>
<ows:Post xlink:type="simple" 
xlink:href="https://map.geo.sz.ch/main/mapserv?"/>
</ows:HTTP>
</ows:DCP>

Note the lack of "_proxy". In fact, if you search the document the 
string "_proxy" doesn't appear anywhere. But if you try that declared 
URL, you get a 403 - Forbidden:
https://map.geo.sz.ch/main/mapserv?REQUEST=GetCapabilities&service=wfs

So I suspect (this is a guess) that QGIS 3 is trying to ("correctly") 
use the declared URLs for the services, whereas QGIS 2 was ignoring them 
and extrapolating them based on the base URL path. Which of these 
options is desirable is a tricky one - there are situations whether 
either work or don't.

Unfortunately the service doesn't declare any contact information to 
tell the server operator to fix it. But maybe you can find an email on 
their web-page.

Cheers,
Jonathan

On 29/08/2018 07:34, Juerg Lindauer wrote:
> Hi
>
> I want to connect to a wfs with QGIS 3.2.2 on Win10.
>
> http://map.geo.sz.ch/main/wsgi/mapserv_proxy?REQUEST=GetCapabilities
>
> When i connect to the wfs, i get the layer list.  But when i want to
> put any layer to QGIS, i get the following error message:
>
> 2018-08-24T14:32:03 WARNING DescribeFeatureType Netzwerkanfrage schlug
> für URL IgnoreAxisOrientation='1' srsname='EPSG:3857'
> typename='ms:ch.sz.a018.amtliche_vermessung.liegenschaften.grundstueck'
> url='https://map.geo.sz.ch/main/wsgi/mapserv_proxy'
> url='https://map.geo.sz.ch/main/wsgi/mapserv_proxy?REQUEST=GetCapabilities'
> version='auto' table="" sql= fehl: Herunterladen des Objekttyps
> gescheitert: Error transferring
> https://map.geo.sz.ch/main/mapserv?SERVICE=WFS&REQUEST=DescribeFeatureType&VERSION=2.0.0&TYPENAME=ms:ch.sz.a018.amtliche_vermessung.liegenschaften.grundstueck
> - server replied: Forbidden
>
> 2018-08-24T14:32:03 WARNING Herunterladen des Objekttyps gescheitert:
> Error transferring
> https://map.geo.sz.ch/main/mapserv?SERVICE=WFS&REQUEST=DescribeFeatureType&VERSION=2.0.0&TYPENAME=ms:ch.sz.a018.amtliche_vermessung.liegenschaften.grundstueck
> - server replied: Forbidden
>
> I see that the URL in 'Error transferring' is different to the
> connection URL. After /mapserv  the string _proxy is missing.
> In the earlier 2.18 Version the wfs connection is ok without troubles.
> Is there a bug in 3.2.2 with connections they have an _ in the last part
> of the URL?
> Has anbody a hint? Other connections wfs works fine. I have the
> problems only with the URL above.
>
> Regards,
> Juerg
>
>   
> Amt für Landwirtschaft
> Abt. Agrarmassnahmen und Bodenrecht
> Hirschistrasse 15
> Postfach 5182
> 6431 Schwyz
> Telefon: 041 819 15 17
> Telefax: 041 819 15 19
> E-Mail: juerg.lindauer at sz.ch
> Internet: www.sz.ch/landwirtschaft
>
>
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