geoserver/geoserver — pull request #786 by dwins (2014-10-20 20:19:14+00:00)
Title: Enforce that store and layer names are xml-safe at the catalog level

As discussed on the mailing list, it is problematic to have layer name that are not XML-safe in GeoServer. This patch adds a validator to reject such names, and ensures that such validators are enforced in the REST API and web interface. I think that it still needs a little work to give better errors (right now any validation is reported with a generic "Validation failed" message) but here is the approach.