Header names are case insensitive

Move header checks to web_site

lib/wpscan/web_site/interesting_headers.rb

@@ -0,0 +1,44 @@
+# encoding: UTF-8
+
+class WebSite
+  module InterestingHeaders
+
+    # Checks for interesting headers
+    # @return [ Array ] Interesting Headers
+    def interesting_headers
+      response = Browser.head(@uri.to_s)
+      headers = response.headers
+      # Header Names are case insensitve so convert them to upcase
+      headers_uppercase = headers.inject({}) do |hash, keys|
+        hash[keys[0].upcase] = keys[1]
+        hash
+      end
+      InterestingHeaders.known_headers.each do |h|
+        headers_uppercase.delete(h.upcase)
+      end
+      headers_uppercase.to_a.compact.sort
+    end
+
+    protected
+
+    # @return [ Array ]
+    def self.known_headers
+      %w{
+        Location
+        Date
+        Content-Type
+        Content-Length
+        Connection
+        Etag
+        Expires
+        Last-Modified
+        Pragma
+        Vary
+        Cache-Control
+        X-Pingback
+        Accept-Ranges
+      }
+    end
+
+  end
+end