Refactor sources

app/logical/sources/strategies/null.rb

@@ -0,0 +1,43 @@
+module Sources
+  module Strategies
+    class Null < Base
+      def self.match?(*urls)
+        true
+      end
+
+      def image_urls
+        [url]
+      end
+
+      def page_url
+        url
+      end
+
+      def normalized_for_artist_finder?
+        true
+      end
+
+      def normalizable_for_artist_finder?
+        false
+      end
+
+      def normalize_for_artist_finder
+        url
+      end
+
+      def site_name
+        URI.parse(url).hostname || "N/A"
+      rescue
+        "N/A"
+      end
+
+      def unique_id
+        url
+      end
+
+      def rewrite(url, headers, data)
+        return [url, headers, data]
+      end
+    end
+  end
+end