OAIPMH server / Remove non valid chars from the value to match the xs…

…lt filename to apply

core/src/main/java/org/fao/geonet/kernel/oaipmh/Lib.java

@@ -93,9 +93,13 @@ public static Element transform(Path schemaDir, Element env, Element md, String
         root.addContent(md);
         root.addContent(env);
 
+        //--- remove any non letter, number, dot or dash character
+
+        String processedTargetFormat = targetFormat.replaceAll("[^a-zA-Z0-9.-]", "");
+
         //--- do an XSL transformation
 
-        Path styleSheet = schemaDir.resolve("convert").resolve(targetFormat);
+        Path styleSheet = schemaDir.resolve("convert").resolve(processedTargetFormat);
 
         return Xml.transform(root, styleSheet);
     }

services/src/main/java/org/fao/geonet/api/oaipmh/OaiPmhApi.java

@@ -68,7 +68,6 @@ public Element dispatch(
         // Set the service name, used in OaiPmhDispatcher to build the oaiphm endpoint URL
         serviceContext.setService("api/oaipmh");
 
-
         return oaiPmhDispatcher.dispatch(oaiPmhParams, serviceContext);
     }