From e00867bc437b6a681491ef59e13423051e6d98f0 Mon Sep 17 00:00:00 2001
From: Andrew White <andyw@pixeltrix.co.uk>
Date: Sun, 6 Mar 2011 07:08:50 +0000
Subject: [PATCH] Raise ArgumentError if route name is invalid [#6517
 state:resolved]

---
 .../lib/action_dispatch/routing/route_set.rb  |  2 ++
 actionpack/test/dispatch/routing_test.rb      | 32 +++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb
index fc86d52a3a..61053d4464 100644
--- a/actionpack/lib/action_dispatch/routing/route_set.rb
+++ b/actionpack/lib/action_dispatch/routing/route_set.rb
@@ -1,5 +1,6 @@
 require 'rack/mount'
 require 'forwardable'
+require 'active_support/core_ext/object/blank'
 require 'active_support/core_ext/object/to_query'
 require 'active_support/core_ext/hash/slice'
 
@@ -330,6 +331,7 @@ module ActionDispatch
       end
 
       def add_route(app, conditions = {}, requirements = {}, defaults = {}, name = nil, anchor = true)
+        raise ArgumentError, "Invalid route name: '#{name}'" unless name.blank? || name.to_s.match(/^[_a-z]\w*$/i)
         route = Route.new(self, app, conditions, requirements, defaults, name, anchor)
         @set.add_route(*route)
         named_routes[name] = route if name
diff --git a/actionpack/test/dispatch/routing_test.rb b/actionpack/test/dispatch/routing_test.rb
index 1a96587836..5e5758a60e 100644
--- a/actionpack/test/dispatch/routing_test.rb
+++ b/actionpack/test/dispatch/routing_test.rb
@@ -2313,6 +2313,38 @@ class TestRoutingMapper < ActionDispatch::IntegrationTest
     end
   end
 
+  def test_invalid_route_name_raises_error
+    assert_raise(ArgumentError) do
+      self.class.stub_controllers do |routes|
+        routes.draw { get '/products', :to => 'products#index', :as => 'products ' }
+      end
+    end
+
+    assert_raise(ArgumentError) do
+      self.class.stub_controllers do |routes|
+        routes.draw { get '/products', :to => 'products#index', :as => ' products' }
+      end
+    end
+
+    assert_raise(ArgumentError) do
+      self.class.stub_controllers do |routes|
+        routes.draw { get '/products', :to => 'products#index', :as => 'products!' }
+      end
+    end
+
+    assert_raise(ArgumentError) do
+      self.class.stub_controllers do |routes|
+        routes.draw { get '/products', :to => 'products#index', :as => 'products index' }
+      end
+    end
+
+    assert_raise(ArgumentError) do
+      self.class.stub_controllers do |routes|
+        routes.draw { get '/products', :to => 'products#index', :as => '1products' }
+      end
+    end
+  end
+
   def test_nested_route_in_nested_resource
     get "/posts/1/comments/2/views"
     assert_equal "comments#views", @response.body