dokuwiki cache patch

gistfile1.txt

diff --git a/auth.php b/auth.php
index 33d7279..87c2ee2 100644
--- a/auth.php
+++ b/auth.php
@@ -22,7 +22,7 @@ class auth_plugin_authldap extends DokuWiki_Auth_Plugin {
 
     /* @var array $_pattern User filter pattern */
     protected $_pattern = null;
-
+    protected $cache = null;
     /**
      * Constructor
      */
@@ -35,7 +35,8 @@ class auth_plugin_authldap extends DokuWiki_Auth_Plugin {
             $this->success = false;
             return;
         }
-
+        $this->cache = new Memcached();
+        $this->cache->addServer('127.0.0.1', 11211);
         // Add the capabilities to change the password
         $this->cando['modPass'] = $this->getConf('modPass');
     }
@@ -150,7 +151,17 @@ class auth_plugin_authldap extends DokuWiki_Auth_Plugin {
      * @return  array containing user data or false
      */
     public function getUserData($user, $requireGroups=true) {
-        return $this->_getUserData($user);
+        $usercache = $this->cache->get("user_data::" . $user);
+        if ($usercache != null) {
+            return $usercache;
+        }
+        $userdata = $this->_getUserData($user);
+        if ($userdata == false) {
+            $this->cache->set("user_data::" . $user,$userdata,60);
+        } else {
+            $this->cache->set("user_data::" . $user,$userdata,7200);
+        }
+        return $userdata;