X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/c0fe77fd020a102ee0ac3cde974b437f31efc817..14f1777dadf26b52936edf0c9685f960f59564a3:/config/initializers/streaming.rb

diff --git a/config/initializers/streaming.rb b/config/initializers/streaming.rb
index 0fc092951..0c27ba2e7 100644
--- a/config/initializers/streaming.rb
+++ b/config/initializers/streaming.rb
@@ -1,10 +1,12 @@
 # Hack ActionController::DataStreaming to allow streaming from a file handle
 module ActionController
   module DataStreaming
-    alias_method :old_send_file, :send_file
+    alias old_send_file send_file
 
     def send_file(file, options = {})
-      if file.is_a? File or file.is_a? Tempfile
+      if file.is_a?(File) || file.is_a?(Tempfile)
+        headers["Content-Length"] ||= file.size.to_s
+
         options[:filename] ||= File.basename(file.path) unless options[:url_based_filename]
         send_file_headers! options
 
@@ -12,6 +14,8 @@ module ActionController
         self.content_type = options[:content_type] if options.key?(:content_type)
         self.response_body = file
       else
+        headers["Content-Length"] ||= File.size(file).to_s
+
         old_send_file(file, options)
       end
     end