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diff --git a/application/libraries/Auth/extensions.php b/application/libraries/Auth/extensions.php
new file mode 100644
index 0000000..041dd00
--- /dev/null
+++ b/application/libraries/Auth/extensions.php
@@ -0,0 +1,69 @@
+<?php
+
+/**
+ * CodeIgniter style sessions.
+ * 
+ * @package OpenID
+ */
+class Auth_Yadis_CISession extends Auth_Yadis_PHPSession {
+	
+	protected $ci = NULL;
+	
+	public function __construct()
+	{
+		$this->ci =& get_instance();
+		$this->ci->load->library('session');
+	}
+	
+    /**
+     * Set a session key/value pair.
+     *
+     * @param string $name The name of the session key to add.
+     * @param string $value The value to add to the session.
+     */
+    function set($name, $value)
+    {
+		$this->ci->session->set_userdata($name, $value);
+    }
+
+    /**
+     * Get a key's value from the session.
+     *
+     * @param string $name The name of the key to retrieve.
+     * @param string $default The optional value to return if the key
+     * is not found in the session.
+     * @return string $result The key's value in the session or
+     * $default if it isn't found.
+     */
+    function get($name, $default=NULL)
+    {
+		$value = $this->ci->session->userdata($name);
+        if ($value !== FALSE) 
+		{
+            return $value;
+        }
+		else
+		{
+            return $default;
+        }
+    }
+
+    /**
+     * Remove a key/value pair from the session.
+     *
+     * @param string $name The name of the key to remove.
+     */
+    function del($name)
+    {
+        $this->ci->session->unset_userdata($name);
+    }
+
+    /**
+     * Return the contents of the session in array form.
+     */
+    function contents()
+    {
+        return $this->ci->session->all_userdata();
+    }
+}
+?>