add source + rewrite strategy for pawoo

app/logical/downloads/rewrite_strategies/pawoo.rb

@@ -0,0 +1,21 @@
+module Downloads
+  module RewriteStrategies
+    class Pawoo < Base
+      attr_accessor :url, :source
+
+      def initialize(url)
+        @url  = url
+      end
+
+      def rewrite(url, headers, data = {})
+        if PawooApiClient::Status.is_match?(url)
+          client = PawooApiClient.new
+          response = client.get_status(url)
+          url = client.image_url
+        end
+
+        return [url, headers, data]
+      end
+    end
+  end
+end