Mediawiki Basic Extension

I need to get an extension in MediaWiki that can embed a GoogleMaps KML Layer using the code on the attached file: The variables that the users will be specifying are: -The file which in this case is: [login to view URL] -The Latitud which in this example is: -35.09 -The Longitud which in this example is: -70.67 -The zoom which in this example is: 11 -The width which in this example is: 900 -The height which in this example is: 700 -The type which in this example is: SATELLITE The way of setting the map on the website frontuser for this example has to be the following (or similar): {{#tag:gmaps|[login to view URL]|lat=-35.09|lon=-70.67|zoom=11|width=900|height=700|type=SATELLITE}} In the extension php file need to have the magic word {{filepath:file name}} processing the file "Planchon - Valle del Rio [login to view URL]" so that can become a normal URL {{filepath:Planchon_-_Valle del Rio [login to view URL]}} --> [login to view URL]