Make Routing noisy when an anchor regexp is assigned to a segment. Closes #5674

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4677 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

 *SVN*
 
+* Make Routing noisy when an anchor regexp is assigned to a segment. #5674 [francois.beausoleil@gmail.com]
+
 * Added months and years to the resolution of DateHelper#distance_of_time_in_words, such that "60 days ago" becomes "2 months ago" #5611 [pjhyett@gmail.com]
 
+>>>>>>> .r4676
 * Short documentation to mention use of Mime::Type.register. #5710 [choonkeat@gmail.com]
 
 * Make controller_path available as an instance method.  #5724 [jmckible@gmail.com]

actionpack/lib/action_controller/routing.rb

@@ -694,6 +694,9 @@ def assign_route_options(segments, defaults, requirements)
           segment = segment_named[key]
           if segment
             raise TypeError, "#{key}: requirements on a path segment must be regular expressions" unless requirement.is_a?(Regexp)
+            if requirement.source =~ %r{\\A|\\Z|\\z|\^|\$}
+              raise ArgumentError, "Regexp anchor characters are not allowed in routing requirements: #{requirement.inspect}"
+            end
             segment.regexp = requirement
           else
             route_requirements[key] = requirement

actionpack/test/controller/routing_test.rb

@@ -150,7 +150,7 @@ def test_named_route_without_hash
   def test_named_route_with_regexps
     rs.draw do |map|
       map.article 'page/:year/:month/:day/:title', :controller => 'page', :action => 'show',
-        :year => /^\d+$/, :month => /^\d+$/, :day => /^\d+$/
+        :year => /\d+/, :month => /\d+/, :day => /\d+/
       map.connect ':controller/:action/:id'
     end
     x = setup_for_named_route.new
@@ -1252,6 +1252,55 @@ def test_route_with_parameter_shell
     end
   end
 
+  def test_route_requirements_with_anchor_chars_are_invalid
+    assert_raises ArgumentError do
+      set.draw do |map|
+        map.connect 'page/:id', :controller => 'pages', :action => 'show', :id => /^\d+/
+      end
+    end
+    assert_raises ArgumentError do
+      set.draw do |map|
+        map.connect 'page/:id', :controller => 'pages', :action => 'show', :id => /\A\d+/
+      end
+    end
+    assert_raises ArgumentError do
+      set.draw do |map|
+        map.connect 'page/:id', :controller => 'pages', :action => 'show', :id => /\d+$/
+      end
+    end
+    assert_raises ArgumentError do
+      set.draw do |map|
+        map.connect 'page/:id', :controller => 'pages', :action => 'show', :id => /\d+\Z/
+      end
+    end
+    assert_raises ArgumentError do
+      set.draw do |map|
+        map.connect 'page/:id', :controller => 'pages', :action => 'show', :id => /\d+\z/
+      end
+    end
+    assert_nothing_raised do
+      set.draw do |map|
+        map.connect 'page/:id', :controller => 'pages', :action => 'show', :id => /\d+/, :name => /^(david|jamis)/
+      end
+      assert_raises ActionController::RoutingError do
+        set.generate :controller => 'pages', :action => 'show', :id => 10
+      end
+    end
+  end
+  
+  def test_non_path_route_requirements_match_all
+    set.draw do |map|
+      map.connect 'page/37s', :controller => 'pages', :action => 'show', :name => /(jamis|david)/
+    end
+    assert_equal '/page/37s', set.generate(:controller => 'pages', :action => 'show', :name => 'jamis')
+    assert_raises ActionController::RoutingError do
+      set.generate(:controller => 'pages', :action => 'show', :name => 'not_jamis')
+    end
+    assert_raises ActionController::RoutingError do
+      set.generate(:controller => 'pages', :action => 'show', :name => 'nor_jamis_and_david')
+    end
+  end
+  
   def test_recognize_with_encoded_id_and_regex
     set.draw do |map|
       map.connect 'page/:id', :controller => 'pages', :action => 'show', :id => /[a-zA-Z0-9 ]+/