[CHEF-761] initialize with the request to access normalized headers

* Can now create the signature verification object w/ the request and
  then access values computed by the HTTPAuthenticationRequest object.
* created a #authenticate_reqest method that can be used when signature
  verification is initialized w/ the request
* #authenticate_user_request works as before

1 files changed, 4 insertions, 3 deletions

diff --git a/lib/mixlib/authentication/http_authentication_request.rb b/lib/mixlib/authentication/http_authentication_request.rb
index 68a2611..3522149 100644
--- a/lib/mixlib/authentication/http_authentication_request.rb
+++ b/lib/mixlib/authentication/http_authentication_request.rb
@@ -24,10 +24,11 @@ module Mixlib
 
       MANDATORY_HEADERS = [:x_ops_sign, :x_ops_userid, :x_ops_timestamp, :host, :x_ops_content_hash]
 
+      attr_reader :request
+
       def initialize(request)
         @request = request
         @request_signature = nil
-        assert_required_headers_present
       end
 
       def headers
@@ -70,9 +71,8 @@ module Mixlib
         @request_signature
       end
 
-      private
 
-      def assert_required_headers_present
+      def validate_headers!
         missing_headers = MANDATORY_HEADERS - headers.keys
         unless missing_headers.empty?
           missing_headers.map! { |h| h.to_s.upcase }
@@ -80,6 +80,7 @@ module Mixlib
         end
       end
 
+
     end
   end
 end