feature request: metadata roundtrip

[pvgenuchten]

would be interesting to have a plugin for a metadata-roundtrip. Test from any wms/wmts/wcs/wfs capabilities. For each layer/metadataUrl open the url, check if the metadata has a backlink to the service.

This probably needs individual xpath expressions for schema's such as iso19139, iso19115-1, DC

Expected result:

• Warning for layers that have no metadata-url
• Error for layers that have an invalid metadata-url
• Warning for layers with an attached metadata that has no backlink

[justb4]

Good suggestion, this type of scenario is exactly suitable for free-form Probes, using OWSLib for interaction with OWS endpoints. lxml for XPath. Ask me for assistance:-).