Ref #177 wp-super-cache detected from header

lib/common/collections/wp_items/detectable.rb

@@ -102,6 +102,7 @@ class WpItems < Array
         vulns_file:     self.vulns_file
       }
     end
+
     # The default request parameters
     #
     # @return [ Hash ]

lib/common/collections/wp_plugins/detectable.rb

@@ -23,50 +23,54 @@ class WpPlugins < WpItems
       detected += from_header(wp_target)
       detected += from_content(wp_target)
 
-      detected.sort.uniq!
+      detected.uniq! { |i| i.name }
       detected
     end
 
     protected
 
     # X-Powered-By: W3 Total Cache/0.9.2.5
-    # @param [ Typhoeus::Response ] response
+    # WP-Super-Cache: Served supercache file from PHP
+    # @param [ WpTarget ] wp_target
     #
     # @return [ WpPlugins ]
     def from_header(wp_target)
+      headers    = Browser.get(wp_target.url).headers
       wp_plugins = WpPlugins.new
-      response   = Browser.get(wp_target.url)
 
-      if response.headers && powered_by = response.headers[:x_powered_by]
-        if powered_by =~ /W3 Total Cache\/([^0-9.]+)/i
-          wp_plugins << WpPlugin.new(
-            wp_target.uri,
-            self.item_options(wp_target).merge(name: 'w3-total-cache', version: $1)
-          )
+      if headers
+        powered_by     = headers[:x_powered_by]
+        wp_super_cache = headers['wp-super-cache']
+
+        if powered_by =~ /W3 Total Cache/i
+          wp_plugins << create_item(WpPlugin, 'w3-total-cache', wp_target)
+        end
+
+        if wp_super_cache =~ /supercache/i
+          wp_plugins << create_item(WpPlugin, 'wp-super-cache', wp_target)
         end
       end
+
       wp_plugins
     end
 
     # <!-- Cached page generated by WP-Super-Cache on 2013-05-03 14:46:37 -->
     # <!-- Performance optimized by W3 Total Cache.
-    # @param [ Typhoeus::Response ] response
+    # @param [ WpTarget ] wp_target
     #
     # @return [ WpPlugins ]
     def from_content(wp_target)
       body       = Browser.get(wp_target.url).body
       wp_plugins = WpPlugins.new
-      options    = self.item_options(wp_target)
 
       if body =~ /wp-super-cache/i
-        wp_plugins << WpPlugin.new(wp_target.uri, options.merge(name: 'wp-super-cache'))
+        wp_plugins << create_item(WpPlugin, 'wp-super-cache', wp_target)
       end
 
       if body =~ /w3 total cache/i
-        wp_plugins << WpPlugin.new(wp_target.uri, options.merge(name: 'w3-total-cache'))
+        wp_plugins << create_item(WpPlugin, 'w3-total-cache', wp_target)
       end
 
-      wp_plugins.uniq!
       wp_plugins
     end