date:20150706

Re: [mapserver-users] WMS request fails when spaces are encoded as plus symbol in query part of URL

2015-07-06 Thread Moen, Paul T.

An update.

ESRI has decided not to follow the standard and has closed the bug, NIM104744, 
we submitted about not decoding a plus symbol ‘+’ to a space.  Their solution 
is for everyone else to encode all spaces as %20 and to ignore 
http://tools.ietf.org/html/rfc3986.  They have closed the bug and listed it as 
a known limit.

http://support.esri.com/en/bugs/nimbus/TklNMTA0NzQ0

So, in order for Mapserver to consume ESRI WMS services, with spaces in the 
name, the spaces have to be encoded as %20.

I see Mapserver 7.0 still encodes spaces to a ‘+’, so I thought people should 
know if they intend to consume any ESRI WMS layers with spaces in the name.

From: Paul Moen mailto:pm...@nd.gov>>
Date: Wednesday, August 20, 2014 at 9:43 AM
To: "Lime, Steve D (MNIT)" 
mailto:steve.l...@state.mn.us>>, 
"mapserver-users@lists.osgeo.org" 
mailto:mapserver-users@lists.osgeo.org>>
Subject: Re: [mapserver-users] WMS request fails when spaces are encoded as 
plus symbol in query part of URL

Steve,

You are right about the outcome of 1 and 2.  1 encodes the % and 2 throws the 
following error.

msBuildWMSLayerURLBase(): One of wms_onlineresource, wms_server_version, 
wms_name metadata is missing in layer USGS DRG 250k Topo Maps.  Please either 
provide a valid CONNECTION URL, or provide those values in the layer's 
metadata.\n\n

I found the function as you said and
I removed the

 if (*i == ' ')
  *j = '+';
else
from the function then recompiled.

char *msEncodeUrlExcept(const char *data, const char except)
{
  char *hex = "0123456789ABCDEF";
  const char *i;
  char  *j, *code;
  int   inc;
  unsigned char ch;

  for (inc=0, i=data; *i!='\0'; i++)
if (msEncodeChar(*i))
  inc += 2;

  code = (char*)msSmallMalloc(strlen(data)+inc+1);

  for (j=code, i=data; *i!='\0'; i++, j++) {
if ( except != '\0' && *i == except ) {
  *j = except;
} else if (msEncodeChar(*i)) {
  ch = *i;
  *j++ = '%';
  *j++ = hex[ch/16];
  *j   = hex[ch%16];
} else
  *j = *i;
  }
  *j = '\0';

  return code;
}

Everything works again after a mapserver recompile, install and finally a 
restart of apache.  Thanks so much for the path to the solution.

Paul Moen
pm...@nd.gov
701-328-2434


From: , "Steve D (MNIT)" 
mailto:steve.l...@state.mn.us>>
Date: Wednesday, August 20, 2014 at 12:41 AM
To: Paul Moen mailto:pm...@nd.gov>>, 
"mapserver-users@lists.osgeo.org" 
mailto:mapserver-users@lists.osgeo.org>>
Subject: RE: [mapserver-users] WMS request fails when spaces are encoded as 
plus symbol in query part of URL

Hmmm... Nice backwards compatibility ESRI. The +'s seem to still be quite legal 
(http://tools.ietf.org/html/rfc3986 and other references) in the query string 
(but not the path). I don't have access to test and I'm guessing these ideas 
won't work but they might be worth a quick try:

  1) Try encoding the wms_name in the metadata: "wms_name" 
"Topomap%20DRG%20250k"
  2) Don't set the wms_name in the metadata but add it to the connection: 
CONNECTION 
"http://ndgishub.nd.gov/arcgis/services/All_Elevation/MapServer/WMSServer?LAYERS=Topomap%20DRG%20250k&";

I'm betting MapServer will encode the %'s in 1 and throw an error in 2. 
Otherwise you could hack the MapServer source. Function is called 
msEncodeUrlExcept() in mapstring.c you can see the section to change starting 
at line 1138 in git master 
(https://github.com/mapserver/mapserver/blob/master/mapstring.c)

Maybe it's worth making this change as part of 7.0?

Steve



From:mapserver-users-boun...@lists.osgeo.org
 
[mapserver-users-boun...@lists.osgeo.org]
 on behalf of Moen, Paul T. [pm...@nd.gov]
Sent: Tuesday, August 19, 2014 4:56 PM
To: mapserver-users@lists.osgeo.org
Subject: [mapserver-users] WMS request fails when spaces are encoded as plus 
symbol in query part of URL

Hi all,

We are consuming WMS services hosted by ESRI ArcGIS Server 10.0.  The server 
was upgraded to ArcGIS Server 10.2.2 and we no longer can access layer names 
with spaces.

This is the server’s capabilities.
http://ndgishub.nd.gov/arcgis/services/All_Elevation/MapServer/WMSServer?request=GetCapabilities&service=WMS

This is the layer I am using.

LAYER
# DEBUG 5
CONNECTIONTYPE WMS
CONNECTION 
"http://ndgishub.nd.gov/arcgis/services/All_Elevation/MapServer/WMSServer?";
METADATA
"wms_name" "Topomap DRG 250k"
"wms_format" "image/png"
"wms_server_version" "1.1.1"
"wms_srs" "EPSG:2266"
END
TYPE RASTER
STATUS OFF
NAME "USGS DRG 250k Topo Maps"
END

Mapserver encodes this request as follows.  Notice that the layer name, which 
is ‘Topomap DRG 250k’, is encoded with the spaces becoming the ‘+’ character.

http://ndgishub

Re: [mapserver-users] OSM via mapserver setup help?

2015-07-06 Thread Jeff McKenna


Hi Brent,

Glad you found the wiki helpful.  As you travel down this path, please 
edit that wiki page directly and add your changes.  That's how we can 
keep these instructions uptodate.  I see you are pointing out what is 
missing in that document, and others have helped you, so it will be very 
easy for you now to add those missing parts.  Thank you!


-jeff



--
Jeff McKenna
MapServer Consulting and Training Services
http://www.gatewaygeomatics.com/




On 2015-07-04 10:46 PM, Brent Wood wrote:

Hi,

I'm looking to create a WMS & WM(T)S server for OSM data in New Zealand,
on Mint 17 (Ubuntu 14.04 Trusty LTS)

I have followed the instructions here:
https://github.com/mapserver/mapserver/wiki/Rendering-OSM-data-on-Ubuntu-12.04


Which as about as up to date as any mapserver/imposm instructions I have
found.

I have sorted out a few issues, but it is not yet working - probably due
to my ignorance of things apache. As far as I can tell, the instructions
do NOT describe how to get a WMS working with the mapfiles, only how to
get a TMS working with the cache (which does not work for me either - &
instructions like "check the apache logs" don't help me much - being
well ahead of my apache knowledge.

I have got mapserver working as a cgi OK - with the usual error message
to say it is working from the browser,
"No query information to decode. QUERY_STRING is set, but empty."

My problem seems to be getting the paths/url set so mapserver can find
the osmbase.map, etc to access  the osm data in the database.

Any advice appreciated.

Brent Wood




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Re: [mapserver-users] WMS request fails when spaces are encoded as plus symbol in query part of URL

Re: [mapserver-users] OSM via mapserver setup help?

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