Variable substitution and WMS

[Kralidis,Tom [Burlington]]

You should be able to do so, yes.

The only point to be aware is if a generic client (say I have an
application, for example), who wishes to connect to your OGC:WMS, but is
unaware of the username/password mechanism, will run into problems.  If
your OGC:WMS is serving a controlled set of applications exclusively,
then this may not be that big of an issue.

..Tom


> -----Original Message-----
> From: John Cole [mailto:john.cole at uai.com] 
> Sent: 03 October, 2006 11:17 AM
> To: Kralidis,Tom [Burlington]; MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: RE: [UMN_MAPSERVER-USERS] Variable substitution and WMS
> 
> Tom,
>   We have an asp.net/atlas wrapper that calls out to 
> mapserver via CGI.  I would like to change that to use WMS.  
> If I understand correctly, I should be able to simply add a 
> few more parameters to the WMS request string and mapserver 
> will use those the same way as a mode=map request and 
> substitute them into %var% tags?
> 
> Thanks,
> 
> John
> 
> -----Original Message-----
> From: Kralidis,Tom [Burlington] [mailto:Tom.Kralidis at ec.gc.ca]
> Sent: Tuesday, October 03, 2006 10:10 AM
> To: John Cole; MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: RE: [UMN_MAPSERVER-USERS] Variable substitution and WMS
> 
>  
> 
> > -----Original Message-----
> > From: UMN MapServer Users List
> > [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of John Cole
> > Sent: 03 October, 2006 11:06 AM
> > To: MAPSERVER-USERS at LISTS.UMN.EDU
> > Subject: [UMN_MAPSERVER-USERS] Variable substitution and WMS
> > 
> > Is it possible to use variable substitution with a WMS request to 
> > mapserver?
> > It would be nice to be able to set username/passwords or other 
> > information for layer queries to the mapfile.
> > 
> > Thanks,
> > 
> > John
> 
> You should be able to use it with OGC:WMS, however a client 
> would require more intelligence to pass along those 
> variables.  i.e. a vanille OGC:WMS client would need to be 
> enhanced for this.
> 
> Additionally, you can take a look at the Mapscript WxS 
> services capability through you favourite scripting language, 
> which can now expose as OGC Web Services (see the MapServer 
> OGC Web Services Workshop 
> [http://ms-ogc-workshop.maptools.org/] for more info and examples).
> 
> ..Tom
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