WFS POST requests: "No template provided" error

[Frank Steggink]

Follow up. I've found and tested a few services:

1.
http://wfs.alaskamapped.org/inventory?SERVICE=WFS&VERSION=1.0.0&REQUEST=
GetCapabilities& (from a post yesterday, MapServer 5.0 RC 2): I got an
internal server error (500) with DescribeFeatureType/POST. The online
resource URL is the same.
2.
http://www2.dmsolutions.ca/cgi-bin/mswfs_gmap?SERVICE=WFS&VERSION=1.0.0&
REQUEST=GetCapabilities& (MapServer 4.6.0): DescribeFeatureType/POST and
GetFeature/POST work here. As I mentioned before, I'm using the online
resource URL's, which are different than the base URL.
3.
http://excise.pyr.ec.gc.ca/cgi-bin/mapserv.exe?map=/LocalApps/Mapsurfer/
PYRWQMP.map&SERVICE=WFS&VERSION=1.0.0&REQUEST=GetCapabilities&
(MapServer 4.8.1): The client timed out at DescribeFeatureType/POST.
(GET, which I did in the browser, responded pretty quick.) After 5
minutes I finally got a response from the server, a 502 error (Bad
Gateway), with a CGI application timeout. This is probably a
configuration error, since the online resource is different.

It looks indeed that this is more due to configuration errors, than that
it is actually an error by MapServer. Since I have no experience with
Mapserver itself, it is hard to tell. Maybe it is coincident or not, but
the oldest Mapserver version seems to work best.

Yewondwossen, replying to the mail you just sent, can you send the test
script? Then I can see what are the actual differences. I have logged my
requests with Fiddler, and saved the sessions. In case you're
interested, I can send it to you as well.

Frank

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
Behalf Of Frank Steggink
Sent: Friday, November 09, 2007 08:44
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] WFS POST requests: "No template
provided" error

Hello Yewondwossen,

Sorry, no improvement here. I'm not getting an error, but I got a time
out, while posting (DescribeFeatureType) to the original server URL
(http://map.ns.ec.gc.ca/MapServer/mapserv.exe?map=/mapserver/services/en
vdat/config.map).
Also, the other service I mentioned,
http://www.bsc-eoc.org/cgi-bin/bsc_ows.asp, uses this same URL as online
resources, which already gave the template error.

I'm a bit out of options right now. As already mentioned, when I'm using
GET, then everything works fine, so our client will be able to access
MapServer. I'll try a few other MapServer WFS's, and see what they do.
(Using POST, and the online resource URL's.) There are quite a lot of
them online. If they all give the same result, then I'm going to file a
bug in Trac. It is no coincidence if several servers, which are set up
independently, all have the same problem.

Frank

-----Original Message-----
From: Yewondwossen Assefa [mailto:yassefa at dmsolutions.ca]
Sent: Thursday, November 08, 2007 17:30
To: Frank Steggink
Cc: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] WFS POST requests: "No template
provided" error

Hi There,

  WFS POST is supported by MapServer. Looking into this thread, you
mentioned a couple of URLS and I have tried the follwing one : 
"http://map.ns.ec.gc.ca/MapServer/mapserv.exe?map=/mapserver/services/en
vdat/config.map"

  I have tried WFS post requests  describefeature and getfeature  with
this service and It responds correctly. It is a Mapserve 4.8.3.

  I am guessing that there is something 'wrong" with the service
accessed though the script at http://map.ns.ec.gc.ca/envdat/map.aspx
where the post requests are not maybe transfered properly to Mapserver.

  Hopefully this helps.

Best Regards,


Frank Steggink wrote:
> Hello Daniel,
> 
> Thanks for the reply. I've tried your suggestion, but unfortunately it

> didn't work. I'm getting the following ServiceException:
> 
> <ServiceExceptionReport
> xmlns="http://www.opengis.net/ogc"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation="http://www.opengis.net/ogc
> http://schemas.opengis.net/wms/1.1.1/OGC-exception.xsd">
>   <ServiceException>
> msWFSDispatch(): WFS server error. Incomplete WFS request: VERSION 
> parameter missing
>   </ServiceException>
> </ServiceExceptionReport>
> 
> The URL is http://map.ns.ec.gc.ca/envdat/map.aspx?SERVICE=WFS& and the

> post data is the same as in the original message.
> 
> It really looks like MapServer only accepts GET request for WFS. So, 
> the simple fix you suggested will probably not be enough. I'm going to
file a ticket.
> In case
> something needs to be tested, please let me know.
> 
> Frank
> 


--
----------------------------------------------------------------
Assefa Yewondwossen
Software Analyst

Email: assefa at dmsolutions.ca
http://www.dmsolutions.ca/

Phone: (613) 565-5056 (ext 14)
Fax:   (613) 565-0925
----------------------------------------------------------------