implements #2350

app/logical/sources/site.rb

@@ -3,7 +3,7 @@
 module Sources
   class Site
     attr_reader :url, :strategy
-    delegate :get, :referer_url, :site_name, :artist_name, :profile_url, :image_url, :tags, :artist_record, :unique_id, :page_count, :file_url, :ugoira_frame_data, :to => :strategy
+    delegate :get, :get_size, :referer_url, :site_name, :artist_name, :profile_url, :image_url, :tags, :artist_record, :unique_id, :page_count, :file_url, :ugoira_frame_data, :to => :strategy
 
     def self.strategies
       [Strategies::Pixiv, Strategies::NicoSeiga, Strategies::DeviantArt, Strategies::Nijie, Strategies::Twitter]

app/logical/sources/strategies/base.rb

@@ -18,6 +18,10 @@ module Sources
         raise NotImplementedError
       end
 
+      def get_size
+        @get_size ||= Downloads::File.new(@image_url).size
+      end
+
       # Subclasses should return true only if the URL is in its final normalized form.
       #
       # Sources::Site.new("http://img.pixiv.net/img/evazion").normalized_for_artist_finder?