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
[email protected]<mailto:[email protected]>
701-328-2434
From: <Lime>, "Steve D (MNIT)"
<[email protected]<mailto:[email protected]>>
Date: Wednesday, August 20, 2014 at 12:41 AM
To: Paul Moen <[email protected]<mailto:[email protected]>>,
"[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
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)<https://github.com/mapserver/mapserver/blob/master/mapstring.c).>
Maybe it's worth making this change as part of 7.0?
Steve
________________________________
From:
[email protected]<mailto:[email protected]>
[[email protected]<mailto:[email protected]>]
on behalf of Moen, Paul T. [[email protected]<mailto:[email protected]>]
Sent: Tuesday, August 19, 2014 4:56 PM
To: [email protected]<mailto:[email protected]>
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.nd.gov/arcgis/services/All_Elevation/MapServer/WMSServer?LAYERS=Topomap+DRG+250k&REQUEST=map&WMTVER=1.0.0&SERVICE=WMS&FORMAT=image/png&STYLES=&HEIGHT=1146&SRS=EPSG:2266&WIDTH=1271&BBOX=1906240.15992838,596656.333359479,2119730.85012732,789150.692893686&TRANSPARENT=TRUE&EXCEPTIONS=INIMAGE
This returns the error in an image that says “Parameter ‘layers’ contains
unacceptable layer names.”
When I replace the + in the layer name with %20, LAYERS=Topomap+DRG+250k become
LAYERS=Topomap%20DRG%20250k and the request becomes the following.
http://ndgishub.nd.gov/arcgis/services/All_Elevation/MapServer/WMSServer?LAYERS=Topomap%20DRG%20250k&REQUEST=map&WMTVER=1.0.0&SERVICE=WMS&FORMAT=image/png&STYLES=&HEIGHT=1146&SRS=EPSG:2266&WIDTH=1271&BBOX=1906240.15992838,596656.333359479,2119730.85012732,789150.692893686&TRANSPARENT=TRUE&EXCEPTIONS=INIMAGE
That request works. Obviously, ESRI is no longer decoding + as a space and
therefore does not recognize the layer name with spaces.
Is there any way I can have mapserver encode all characters using
percent-encoding, or at least encode spaces as %20 instead of a + character.
Thanks,
Paul Moen
[email protected]<mailto:[email protected]>
701-328-2434
_______________________________________________
mapserver-users mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/mapserver-users
