Ticket #1174: _get-user-by-name.php

<?php

/*
Plugin Name: Get User By Name (fast)
*/

function wp_validate_auth_cookie($cookie = '') {
        if ( empty($cookie) ) {
                global $bb;
                if ( empty($_COOKIE[$bb->authcookie]) ) {return false;}
                $cookie = $_COOKIE[$bb->authcookie];
        }

        $cookie_elements = explode('|', $cookie);
        if ( count($cookie_elements) != 3 ) {return false;}

        list($username, $expiration, $hmac) = $cookie_elements;

        $expired = $expiration;

        // Allow a grace period for POST and AJAX requests
        if ( defined('DOING_AJAX') || 'POST' == $_SERVER['REQUEST_METHOD'] )
                $expired += 3600;

        if ( $expired < time() ) {return false;}

        $key = wp_hash($username . '|' . $expiration);
        $hash = hash_hmac('md5', $username . '|' . $expiration, $key);
        
        if ( $hmac != $hash ) {return false;}
        
        $username = sanitize_user( $username, true );
        global $bbdb;
        if ( $user = $bbdb->get_row( $bbdb->prepare( "SELECT * FROM $bbdb->users WHERE user_login = %s", $username ) ) ) {              
                bb_append_meta( $user, 'user' );
        }
        
        if ( empty($user->ID) ) {return false;}

        return $user->ID;
}

?>