FIXED #1333 Rate limit calls.

Clean-up duplicate functionality.
EOL whitespace removed

Changes to be committed:
	modified:   extensions/admin_ui/controllers/authentication/authentication.rb

extensions/admin_ui/controllers/authentication/authentication.rb

@@ -52,11 +52,9 @@ class Authentication < BeEF::Extension::AdminUI::HttpController
     end
 
     # check if under brute force attack
-    time = Time.new
-    if not timeout?(time)
-      @session.set_auth_timestamp(time)
-      return
-    end
+    return if not BeEF::Core::Rest.timeout?('beef.extension.admin_ui.login_fail_delay',
+                                            @session.get_auth_timestamp(),
+                                            lambda { |time| @session.set_auth_timestamp(time)})
 
     # check username and password
     if not (username.eql? config.get('beef.credentials.user') and password.eql? config.get('beef.credentials.passwd') )
@@ -115,17 +113,6 @@ class Authentication < BeEF::Extension::AdminUI::HttpController
     return target_network.include?(ip)
   end
 
-  #
-  # Brute Force Mitigation
-  # Only one login request per login_fail_delay seconds 
-  #
-  def timeout?(time)
-    config = BeEF::Core::Configuration.instance
-    login_fail_delay = config.get('beef.extension.admin_ui.login_fail_delay') # get fail delay
-    
-    # test if the last login attempt was less then login_fail_delay seconds
-    time - @session.get_auth_timestamp > login_fail_delay.to_i
-  end
 
 
 end