Non-ascii attachement filename fix for IE.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1053 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/application.rb

@@ -196,4 +196,9 @@ class ApplicationController < ActionController::Base
     end
     return tmp
   end
+  
+  # Returns a string that can be used as filename value in Content-Disposition header
+  def filename_for_content_disposition(name)
+    request.env['HTTP_USER_AGENT'] =~ %r{MSIE} ? ERB::Util.url_encode(name) : name
+  end
 end

app/controllers/attachments_controller.rb

@@ -21,7 +21,7 @@ class AttachmentsController < ApplicationController
 
   def download
     # images are sent inline
-    send_file @attachment.diskfile, :filename => @attachment.filename, 
+    send_file @attachment.diskfile, :filename => filename_for_content_disposition(@attachment.filename),
                                     :type => @attachment.content_type, 
                                     :disposition => (@attachment.image? ? 'inline' : 'attachment')
   rescue

app/controllers/documents_controller.rb

@@ -67,7 +67,8 @@ class DocumentsController < ApplicationController
   def download
     @attachment = @document.attachments.find(params[:attachment_id])
     @attachment.increment_download
-    send_file @attachment.diskfile, :filename => @attachment.filename, :type => @attachment.content_type
+    send_file @attachment.diskfile, :filename => filename_for_content_disposition(@attachment.filename),
+                                    :type => @attachment.content_type
   rescue
     render_404
   end 

app/controllers/versions_controller.rb

@@ -42,7 +42,8 @@ class VersionsController < ApplicationController
   def download
     @attachment = @version.attachments.find(params[:attachment_id])
     @attachment.increment_download
-    send_file @attachment.diskfile, :filename => @attachment.filename, :type => @attachment.content_type
+    send_file @attachment.diskfile, :filename => filename_for_content_disposition(@attachment.filename),
+                                    :type => @attachment.content_type
   rescue
     render_404
   end