From 8e8d82d49ac80b230e89f034f7aac00ddd555d1e Mon Sep 17 00:00:00 2001
From: Riyad Preukschas <riyad@informatik.uni-bremen.de>
Date: Mon, 15 Oct 2012 21:47:38 +0200
Subject: [PATCH] Only allow editing text files

---
 app/controllers/tree_controller.rb | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/app/controllers/tree_controller.rb b/app/controllers/tree_controller.rb
index 2781d791..c9098cca 100644
--- a/app/controllers/tree_controller.rb
+++ b/app/controllers/tree_controller.rb
@@ -8,6 +8,7 @@ class TreeController < ProjectResourceController
   before_filter :require_non_empty_project
 
   before_filter :assign_ref_vars
+  before_filter :edit_requirements, only: [:edit, :update]
 
   def show
     @hex_path  = Digest::SHA1.hexdigest(@path)
@@ -40,4 +41,12 @@ class TreeController < ProjectResourceController
       render :edit
     end
   end
+
+  private
+
+  def edit_requirements
+    unless @tree.is_blob? && @tree.text?
+      redirect_to project_tree_path(@project, @id), notice: "You can only edit text files"
+    end
+  end
 end