1 files changed, 16 insertions, 4 deletions
diff --git a/actionpack/lib/action_dispatch/http/request.rb b/actionpack/lib/action_dispatch/http/request.rb
index c441f7f95b..d211ea2b77 100644
--- a/actionpack/lib/action_dispatch/http/request.rb
+++ b/actionpack/lib/action_dispatch/http/request.rb
@@ -105,6 +105,18 @@ module ActionDispatch
       @request_method ||= check_method(env["REQUEST_METHOD"])
     end
 
+    def routes # :nodoc:
+      env["action_dispatch.routes".freeze]
+    end
+
+    def original_script_name # :nodoc:
+      env['ORIGINAL_SCRIPT_NAME'.freeze]
+    end
+
+    def engine_script_name(_routes) # :nodoc:
+      env["ROUTES_#{_routes.object_id}_SCRIPT_NAME"]
+    end
+
     def request_method=(request_method) #:nodoc:
       if check_method(request_method)
         @request_method = env["REQUEST_METHOD"] = request_method
@@ -298,7 +310,7 @@ module ActionDispatch
     # Override Rack's GET method to support indifferent access
     def GET
       @env["action_dispatch.request.query_parameters"] ||= Utils.deep_munge(normalize_encode_params(super || {}))
-    rescue TypeError, Rack::Utils::InvalidParameterError => e
+    rescue Rack::Utils::ParameterTypeError, Rack::Utils::InvalidParameterError => e
       raise ActionController::BadRequest.new(:query, e)
     end
     alias :query_parameters :GET
@@ -306,7 +318,7 @@ module ActionDispatch
     # Override Rack's POST method to support indifferent access
     def POST
       @env["action_dispatch.request.request_parameters"] ||= Utils.deep_munge(normalize_encode_params(super || {}))
-    rescue TypeError, Rack::Utils::InvalidParameterError => e
+    rescue Rack::Utils::ParameterTypeError, Rack::Utils::InvalidParameterError => e
       raise ActionController::BadRequest.new(:request, e)
     end
     alias :request_parameters :POST
@@ -328,7 +340,7 @@ module ActionDispatch
     # Extracted into ActionDispatch::Request::Utils.deep_munge, but kept here for backwards compatibility.
     def deep_munge(hash)
       ActiveSupport::Deprecation.warn(
-        "This method has been extracted into ActionDispatch::Request::Utils.deep_munge. Please start using that instead."
+        'This method has been extracted into `ActionDispatch::Request::Utils.deep_munge`. Please start using that instead.'
       )
 
       Utils.deep_munge(hash)
@@ -341,7 +353,7 @@ module ActionDispatch
 
     private
       def check_method(name)
-        HTTP_METHOD_LOOKUP[name] || raise(ActionController::UnknownHttpMethod, "#{name}, accepted HTTP methods are #{HTTP_METHODS.to_sentence(:locale => :en)}")
+        HTTP_METHOD_LOOKUP[name] || raise(ActionController::UnknownHttpMethod, "#{name}, accepted HTTP methods are #{HTTP_METHODS[0...-1].join(', ')}, and #{HTTP_METHODS[-1]}")
         name
       end
   end