Moved the interface renderer logic to the client

client/renderer/templates/20_public_functions.erb

@@ -0,0 +1,26 @@
+--
+-- Public geocoder API function
+--
+-- These are the only ones with permissions to publicuser role
+-- and should also be the only ones with SECURITY DEFINER
+
+CREATE OR REPLACE FUNCTION <%= GEOCODER_CLIENT_SCHEMA %>.<%= name %> (<%= params_with_type_and_default %>)
+RETURNS <%= return_type %> AS $$
+DECLARE
+  ret <%= return_type %>;
+  username text;
+  orgname text;
+BEGIN
+  IF session_user = 'publicuser' OR session_user ~ 'cartodb_publicuser_*' THEN
+    RAISE EXCEPTION 'The api_key must be provided';
+  END IF;
+  SELECT u, o INTO username, orgname FROM <%= GEOCODER_CLIENT_SCHEMA %>._cdb_entity_config() AS (u text, o text);
+  -- JSON value stored "" is taken as literal
+  IF username IS NULL OR username = '' OR username = '""' THEN
+    RAISE EXCEPTION 'Username is a mandatory argument, check it out';
+  END IF;
+  SELECT <%= GEOCODER_CLIENT_SCHEMA %>._<%= name %>(username, orgname, <%= params %>) INTO ret;
+  RETURN ret;
+END;
+$$ LANGUAGE 'plpgsql' SECURITY DEFINER;
+

client/renderer/templates/30_plproxy_functions.erb

@@ -0,0 +1,6 @@
+CREATE OR REPLACE FUNCTION <%= GEOCODER_CLIENT_SCHEMA %>._<%= name %> (username text, organization_name text, <%= params_with_type_and_default %>)
+RETURNS <%= return_type %> AS $$
+  CONNECT <%= GEOCODER_CLIENT_SCHEMA %>._server_conn_str();
+  SELECT cdb_geocoder_server.<%= name %> (username, organization_name, <%= params %>);
+$$ LANGUAGE plproxy;
+

client/renderer/templates/90_grant_execute.erb

@@ -0,0 +1 @@
+GRANT EXECUTE ON FUNCTION <%= GEOCODER_CLIENT_SCHEMA %>.<%= name %>(<%= params_with_type %>) TO publicuser;