Merge branch 'master' of github.com:rails/rails

Conflicts:
	guides/source/security.md

1 files changed, 7 insertions, 1 deletions

diff --git a/actionpack/lib/action_dispatch/http/upload.rb b/actionpack/lib/action_dispatch/http/upload.rb
index 540e11a4a0..a221f4c5af 100644
--- a/actionpack/lib/action_dispatch/http/upload.rb
+++ b/actionpack/lib/action_dispatch/http/upload.rb
@@ -28,7 +28,13 @@ module ActionDispatch
         raise(ArgumentError, ':tempfile is required') unless @tempfile
 
         @original_filename = hash[:filename]
-        @original_filename &&= @original_filename.encode "UTF-8"
+        if @original_filename
+          begin
+            @original_filename.encode!(Encoding::UTF_8)
+          rescue EncodingError
+            @original_filename.force_encoding(Encoding::UTF_8)
+          end
+        end
         @content_type      = hash[:type]
         @headers           = hash[:head]
       end