Add rel attribute with nofollow value.

app/helpers/documents_helper.rb

@@ -12,6 +12,12 @@ module DocumentsHelper
     Hash[Document.sources.map { |k,v| [k, Document.human_attribute_name("document.#{k}")] }]
   end
 
+  def document_link_url(document)
+    uri = URI.parse(document.link)
+    return document.link if uri.scheme == "http" || uri.scheme == "https"
+    "http://#{document.link}"
+  end
+
   def bytesToMeg(bytes)
     bytes / Numeric::MEGABYTE
   end

app/views/documents/_document.html.erb

@@ -3,7 +3,11 @@
     <%= document.title %>
   </td>
   <td class="text-center">
-    <%= link_to t('documents.buttons.download_document'), document.attachment.url, target: :blank, class: 'button hollow' %>
+    <%= link_to t('documents.buttons.download_document'),
+                document.attachment.url,
+                target: "_blank",
+                rel: "nofollow",
+                class: 'button hollow' %>
   </td>
   <td class="text-center">
     <% if can? :destroy, Document %>

config/locales/en/documents.yml

@@ -21,7 +21,7 @@ en:
         notice: Document was deleted successfully.
         alert: Cannot destroy document.
     buttons:
-      download_document: Download PDF
+      download_document: Dowload file
       destroy_document: Destroy
     errors:
       messages:

config/locales/es/documents.yml

@@ -21,7 +21,7 @@ es:
         notice: "El documento se ha eliminado correctamente."
         alert: "El documento no se ha podido eliminar."
     buttons:
-      download_document: Descargar PDF
+      download_document: Descargar archivo
       destroy_document: Eliminar
     errors:
       messages:

spec/shared/features/documentable.rb

@@ -78,16 +78,28 @@ shared_examples "documentable" do |documentable_factory_name, documentable_path,
         end
       end
 
-      describe "Download action" do
+      scenario "Download action should be able to anyone" do
+        visit send(documentable_path, arguments)
 
-        scenario "Should be able to anyone" do
-          visit send(documentable_path, arguments)
-
-          within "#tab-documents" do
-            expect(page).to have_link("Download PDF")
-          end
+        within "#tab-documents" do
+          expect(page).to have_link("Dowload file")
         end
+      end
 
+      scenario "Download file link should have blank target attribute" do
+        visit send(documentable_path, arguments)
+
+        within "#tab-documents" do
+          expect(page).to have_selector("a[target=_blank]", text: "Dowload file")
+        end
+      end
+
+      scenario "Download file links should have rel attribute setted to no follow" do
+        visit send(documentable_path, arguments)
+
+        within "#tab-documents" do
+          expect(page).to have_selector("a[rel=nofollow]", text: "Dowload file")
+        end
       end
 
       describe "Destroy action" do
@@ -243,7 +255,7 @@ shared_examples "documentable" do |documentable_factory_name, documentable_path,
       within "#tab-documents" do
         within "#document_#{Document.last.id}" do
           expect(page).to have_content "Document title"
-          expect(page).to have_link "Download PDF"
+          expect(page).to have_link "Dowload file"
           expect(page).to have_link "Destroy"
         end
       end