[Geoserver-devel] [JIRA] (GEOS-8063) WMS1.3.0 SLD definition can break getcapabilities

GeoServer GeoServer Developer
1

Pierre Mauduit created an issue

GeoServer / BugGEOS-8063

WMS1.3.0 SLD definition can break getcapabilities

Issue Type:

BugBug

Affects Versions:

2.8.3

Assignee:

Unassigned

Components:

WMS

Created:

03/Apr/17 3:31 PM

Environment:

Debian Linux 7, tomcat 6, Java 7

Priority:

LowLow

Reporter:

Pierre Mauduit

Observed by a customer:

When a SLD is defined without a Title nested in the Description element (which is compliant in regard to the SLD specifications, relying on https://github.com/geotools/geotools/blob/master/modules/library/api/src/main/java/org/geotools/styling/Style.java#L39), the Description object used in the GetCapabilities generation can have a title set to null, ending up with a missing Title element:

        <Style>
          <Name>ref_cad:app_cadastrapp_parcelle</Name>
          <LegendURL width="20" height="20">
            <Format>image/png</Format>
            <OnlineResource xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="https://portail.sig.rennesmetropole.fr/geoserver/ows?service=WMS&request=GetLegendGraphic&format=image%2Fpng&width=20&height=20&layer=ref_cad%3Aapp_cadastrapp_parcelle"/>
          </LegendURL>
        </Style>

This might break the GetCapabilities XSD compliance. Here is a result of xmllint on the Getcapabilities output:

$ xmllint --valid --schema http://schemas.opengis.net/wms/1.3.0/capabilities_1_3_0.xsd extra-prod-getcap.xml
[...]
extra-prod-getcap.xml:5479: element LegendURL: Schemas validity error : Element '{http://www.opengis.net/wms}LegendURL': This element is not expected. Expected is ( {http://www.opengis.net/wms}Title ).
[...]
extra-prod-getcap.xml:5486: element LegendURL: Schemas validity error : Element '{http://www.opengis.net/wms}LegendURL': This element is not expected. Expected is ( {http://www.opengis.net/wms}Title ).
extra-prod-getcap.xml fails to validate

Proposition: one possible fix would be to reuse the SLD name if Description.title null, since the Title element needs to be in the GetCapabilities response.

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