Title: wp_authenticate wordpress 2.5
Last modified: August 19, 2016

---

# wp_authenticate wordpress 2.5

 *  [ryancp](https://wordpress.org/support/users/ryancp/)
 * (@ryancp)
 * [18 years, 1 month ago](https://wordpress.org/support/topic/wp_authenticate-wordpress-25/)
 * I was using the HTTP-Authentication plugin ([http://wordpress.org/extend/plugins/http-authentication/#post-141](http://wordpress.org/extend/plugins/http-authentication/#post-141))
   on 2.3.3 just fine. Upon upgrading to 2.5, it stopped working correctly.
    It 
   was as if wp_authenticate() was not firing. Does anyone know why this might not
   be working in 2.5?
 * I have included the meat of the code below:
 *     ```
       if (! class_exists('HTTPAuthenticationPlugin')) {
       	class HTTPAuthenticationPlugin {
       		function HTTPAuthenticationPlugin() {
       			if (isset($_GET['activate']) and $_GET['activate'] == 'true') {
       				add_action('init', array(&$this, 'init'));
       			}
       			add_action('admin_menu', array(&$this, 'admin_menu'));
       			add_action('wp_authenticate', array(&$this, 'authenticate'), 10, 2);
       			add_action('wp_logout', array(&$this, 'logout'));
       			add_action('lost_password', array(&$this, 'disable_function'));
       			add_action('retrieve_password', array(&$this, 'disable_function'));
       			add_action('password_reset', array(&$this, 'disable_function'));
       			add_action('check_passwords', array(&$this, 'check_passwords'), 10, 3);
       			add_filter('show_password_fields', array(&$this, 'show_password_fields'));
       		}
   
       		/*************************************************************
       		 * Plugin hooks
       		 *************************************************************/
   
       		/*
       		 * Add options for this plugin to the database.
       		 */
       		function init() {
       			if (current_user_can('manage_options')) {
       				add_option('http_authentication_logout_uri', get_option('home'), 'The URI to which the user is redirected when she chooses "Logout".');
       			}
       		}
   
       		/*
       		 * Add an options pane for this plugin.
       		 */
       		function admin_menu() {
       			if (function_exists('add_options_page')) {
       				add_options_page('HTTP Authentication', 'HTTP Authentication', 9, __FILE__, array(&$this, 'display_options_page'));
       			}
       		}
   
       		/*
       		 * If the REMOTE_USER evironment is set, use it as the username.
       		 * This assumes that you have externally authenticated the user.
       		 */
       		function authenticate($username, $password) {
       			global $using_cookie;
   
       			// Reset values from input ($_POST and $_COOKIE)
       			$username = $password = '';
   
       			if (! empty($_SERVER['REMOTE_USER'])) {
       				if (function_exists('get_userdatabylogin')) {
       					$username = $_SERVER['REMOTE_USER'];
   
       					$user = get_userdatabylogin($username);
       					if ($user and $username == $user->user_login) {
       						// Feed WordPress a double-MD5 hash (MD5 of value generated in check_passwords)
       						$password = md5($user->user_pass);
   
       						// User is now authorized; force WordPress to use the generated password
       						$using_cookie = true;
       						wp_setcookie($user->user_login, $password, $using_cookie);
       					}
       					else {
       						// User is not in the WordPress database, and thus not authorized
       						die("User $username does not exist in the WordPress database");
       					}
       				}
       				else {
       					die("Could not load user data");
       				}
       			}
       			else {
       				die("No REMOTE_USER found; please check your external authentication configuration");
       			}
       		}
   
       		/*
       		 * Logout the user by redirecting them to the logout URI.
       		 */
       		function logout() {
       			header('Location: ' . get_option('http_authentication_logout_uri'));
       			exit();
       		}
   
       		/*
       		 * Generate a password for the user. This plugin does not
       		 * require the user to enter this value, but we want to set it
       		 * to something nonobvious.
       		 */
       		function check_passwords($username, $password1, $password2) {
       			$password1 = $password2 = substr(md5(uniqid(microtime())), 0, 10);
       		}
   
       		/*
       		 * Used to disable certain display elements, e.g. password
       		 * fields on profile screen.
       		 */
       		function show_password_fields($show_password_fields) {
       			return false;
       		}
   
       		/*
       		 * Used to disable certain login functions, e.g. retrieving a
       		 * user's password.
       		 */
       		function disable_function() {
       			die('Disabled');
       		}
       ```
   

The topic ‘wp_authenticate wordpress 2.5’ is closed to new replies.

## Tags

 * [wp_authenticate](https://wordpress.org/support/topic-tag/wp_authenticate/)

 * 0 replies
 * 1 participant
 * Last reply from: [ryancp](https://wordpress.org/support/users/ryancp/)
 * Last activity: [18 years, 1 month ago](https://wordpress.org/support/topic/wp_authenticate-wordpress-25/)
 * Status: not resolved

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