Add User#requires_ldap_check? method

app/controllers/application_controller.rb

@@ -181,7 +181,7 @@ class ApplicationController < ActionController::Base
   end
 
   def ldap_security_check
-    if current_user && current_user.ldap_user? && current_user.requires_ldap_check?
+    if current_user && current_user.requires_ldap_check?
       if gitlab_ldap_access.allowed?(current_user)
         current_user.last_credential_check_at = Time.now
         current_user.save

app/models/user.rb

@@ -275,7 +275,9 @@ class User < ActiveRecord::Base
   # Projects user has access to
   def authorized_projects
     @authorized_projects ||= begin
-                               project_ids = (personal_projects.pluck(:id) + groups_projects.pluck(:id) + projects.pluck(:id)).uniq
+                               project_ids = personal_projects.pluck(:id)
+                               project_ids += groups_projects.pluck(:id)
+                               project_ids += projects.pluck(:id).uniq
                                Project.where(id: project_ids).joins(:namespace).order('namespaces.name ASC')
                              end
   end
@@ -406,6 +408,14 @@ class User < ActiveRecord::Base
     end
   end
 
+  def requires_ldap_check?
+    if ldap_user?
+      !last_credential_check_at || (last_credential_check_at + 1.hour) < Time.now
+    else
+      false
+    end
+  end
+
   def solo_owned_groups
     @solo_owned_groups ||= owned_groups.select do |group|
       group.owners == [self]