deal with PATH_INFO being nil, fixes #7

rack-protection/lib/rack/protection/path_traversal.rb

@@ -12,7 +12,7 @@ module Rack
     class PathTraversal < Base
       def call(env)
         path_was         = env["PATH_INFO"]
-        env["PATH_INFO"] = cleanup path_was
+        env["PATH_INFO"] = cleanup path_was if path_was
         app.call env
       ensure
         env["PATH_INFO"] = path_was

rack-protection/lib/rack/protection/version.rb

@@ -4,7 +4,7 @@ module Rack
       VERSION
     end
 
-    SIGNATURE = [1, 1, 2]
+    SIGNATURE = [1, 1, 4]
     VERSION   = SIGNATURE.join('.')
 
     VERSION.extend Comparable

rack-protection/rack-protection.gemspec

@@ -2,7 +2,7 @@
 Gem::Specification.new do |s|
   # general infos
   s.name        = "rack-protection"
-  s.version     = "1.1.2"
+  s.version     = "1.1.4"
   s.description = "You should use protection!"
   s.homepage    = "http://github.com/rkh/rack-protection"
   s.summary     = s.description

rack-protection/spec/path_traversal_spec.rb

@@ -19,5 +19,10 @@ describe Rack::Protection::PathTraversal do
     }.each do |a, b|
       it("replaces #{a.inspect} with #{b.inspect}") { get(a).body.should == b }
     end
+
+    it 'should be able to deal with PATH_INFO = nil (fcgi?)' do
+      app = Rack::Protection::PathTraversal.new(proc { 42 })
+      app.call({}).should be == 42
+    end
   end
 end