Merge pull request #106 from finnlabs/pulls/652/fixes_redirect_containing_umlaute

[#652] fixes wrong redirect after login 

app/controllers/application_controller.rb

@@ -262,7 +262,7 @@ class ApplicationController < ActionController::Base
   end
 
   def redirect_back_or_default(default)
-    back_url = CGI.unescape(params[:back_url].to_s)
+    back_url = URI.escape(CGI.unescape(params[:back_url].to_s))
     if !back_url.blank?
       begin
         uri = URI.parse(back_url)

test/integration/account_test.rb

@@ -32,6 +32,15 @@ class AccountTest < ActionController::IntegrationTest
     assert_template "my/account"
   end
 
+  def test_redirect_after_login
+    target_url =  "/my/account?q=%C3%A4"
+
+    get target_url
+    post "/login", :username => 'jsmith', :password => 'jsmith', :back_url => @response.redirected_to[:back_url]
+
+    assert_redirected_to target_url
+  end
+
   def test_autologin
     user = User.find(1)
     Setting.autologin = "7"