WFS POST requests: "No template provided" error

Fri Nov 9 09:36:49 EST 2007

Hi,

I made a test with OpenJUMP WFS plugin (http://openjump.org) that is using only POST method.  
For the first link GetCapabilities goes OK, but the plugin cannot parse the response correctly.  Because of that I cannot send DescribeFeatureType, but when I tried GetFeature I got also "No template provided" error.

This is the request that OpenJUMP plugin is generating:
<?xml version="1.0" encoding="ISO-8859-1"?>
<wfs:GetFeature xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" xmlns:wfs="http://www.opengis.net/wfs" service="WFS" version="1.0.0" maxFeatures="1000" outputFormat="GML2">
<wfs:Query xmlns:null="null" typeName="envirodat">
</wfs:Query>
</wfs:GetFeature>

And this is the response:
<HTML><HEAD><TITLE>MapServer Message</TITLE></HEAD><BODY BGCOLOR="#FFFFFF">mapserv(): Web application error. No template provided. <br></BODY></HTML>

The result is the same with the other URL.

OpenJUMP plugin was developed against GeoServer version 1.5, and with that it works rather well, despite sometimes parsing errors with certain data types (time, decimal).  However, is has always had problems with all MapServer based WFS services, including my own ones.  As its best I can get GetCapabilities and even GetFeature through, but there has always been some problems with parsing the capabilities right, and with DescribeFeatureType.  The plugin has some tools for debugging so if someone sends me URLs I may try those and see what happens.

-Jukka Rahkonen-

________________________________

Lähettäjä: UMN MapServer Users List puolesta: Frank Steggink
Lähetetty: pe 9.11.2007 15:43
Vastaanottaja: MAPSERVER-USERS at LISTS.UMN.EDU
Aihe: 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
>

--
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Assefa Yewondwossen
Software Analyst

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

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