Use rugged in web editor for base64 encoding

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/services/files/create_service.rb

@@ -33,23 +33,20 @@ module Files
         end
       end
-      if params[:encoding] == 'base64'
-        new_file_action = Gitlab::Satellite::NewFileAction.new(current_user, project, ref, file_path)
-        created_successfully = new_file_action.commit!(
-          params[:content],
-          params[:commit_message],
-          params[:encoding],
-          params[:new_branch]
-        )
-      else
-        created_successfully = repository.commit_file(
-          current_user,
-          file_path,
-          params[:content],
-          params[:commit_message],
-          params[:new_branch] || ref
-        )
-      end
+      content =
+        if params[:encoding] == 'base64'
+          Base64.decode64(params[:content])
+        else
+          params[:content]
+        end
+
+      created_successfully = repository.commit_file(
+        current_user,
+        file_path,
+        content,
+        params[:commit_message],
+        params[:new_branch] || ref
+      )
       if created_successfully

app/services/files/update_service.rb

@@ -19,23 +19,20 @@ module Files
         return error("You can only edit text files")
       end
-      if params[:encoding] == 'base64'
-        edit_file_action = Gitlab::Satellite::EditFileAction.new(current_user, project, ref, path)
-        edit_file_action.commit!(
-          params[:content],
-          params[:commit_message],
-          params[:encoding],
-          params[:new_branch]
-        )
-      else
-        repository.commit_file(
-          current_user,
-          path,
-          params[:content],
-          params[:commit_message],
-          params[:new_branch] || ref
-        )
-      end
+      content =
+        if params[:encoding] == 'base64'
+          Base64.decode64(params[:content])
+        else
+          params[:content]
+        end
+
+      repository.commit_file(
+        current_user,
+        path,
+        content,
+        params[:commit_message],
+        params[:new_branch] || ref
+      )
       success
     rescue Gitlab::Satellite::CheckoutFailed => ex