source: trunk/www.guidonia.net/wp/wp-admin/admin.php@ 44

<?php
/**
 * WordPress Administration Bootstrap
 *
 * @package WordPress
 * @subpackage Administration
 */

/**
 * In WordPress Administration Panels
 *
 * @since unknown
 */
if ( !defined('WP_ADMIN') )
        define('WP_ADMIN', TRUE);

if ( defined('ABSPATH') )
        require_once(ABSPATH . 'wp-load.php');
else
        require_once('../wp-load.php');

if ( get_option('db_upgraded') ) {
        $wp_rewrite->flush_rules();
        update_option( 'db_upgraded',  false );

        /**
         * Runs on the next page load after successful upgrade
         *
         * @since 2.8
         */
        do_action('after_db_upgrade');
} elseif ( get_option('db_version') != $wp_db_version ) {
        wp_redirect(admin_url('upgrade.php?_wp_http_referer=' . urlencode(stripslashes($_SERVER['REQUEST_URI']))));
        exit;
}

require_once(ABSPATH . 'wp-admin/includes/admin.php');

auth_redirect();

nocache_headers();

update_category_cache();

set_screen_options();

$posts_per_page = get_option('posts_per_page');
$date_format = get_option('date_format');
$time_format = get_option('time_format');

wp_reset_vars(array('profile', 'redirect', 'redirect_url', 'a', 'popuptitle', 'popupurl', 'text', 'trackback', 'pingback'));

wp_admin_css_color('classic', __('Blue'), admin_url("css/colors-classic.css"), array('#073447', '#21759B', '#EAF3FA', '#BBD8E7'));
wp_admin_css_color('fresh', __('Gray'), admin_url("css/colors-fresh.css"), array('#464646', '#6D6D6D', '#F1F1F1', '#DFDFDF'));

wp_enqueue_script( 'common' );
wp_enqueue_script( 'jquery-color' );

$editing = false;

if (isset($_GET['page'])) {
        $plugin_page = stripslashes($_GET['page']);
        $plugin_page = plugin_basename($plugin_page);
}

require(ABSPATH . 'wp-admin/menu.php');

do_action('admin_init');

// Handle plugin admin pages.
if (isset($plugin_page)) {
        if( ! $page_hook = get_plugin_page_hook($plugin_page, $pagenow) ) {
                $page_hook = get_plugin_page_hook($plugin_page, $plugin_page);
                // backwards compatibility for plugins using add_management_page
                if ( empty( $page_hook ) && 'edit.php' == $pagenow && '' != get_plugin_page_hook($plugin_page, 'tools.php') ) {
                        // There could be plugin specific params on the URL, so we need the whole query string
                        if ( !empty($_SERVER[ 'QUERY_STRING' ]) )
                                $query_string = $_SERVER[ 'QUERY_STRING' ];
                        else
                                $query_string = 'page=' . $plugin_page;
                        wp_redirect( 'tools.php?' . $query_string );
                        exit;
                }
        }

        if ( $page_hook ) {
                do_action('load-' . $page_hook);
                if (! isset($_GET['noheader']))
                        require_once(ABSPATH . 'wp-admin/admin-header.php');

                do_action($page_hook);
        } else {
                if ( validate_file($plugin_page) ) {
                        wp_die(__('Invalid plugin page'));
                }

                if (! ( file_exists(WP_PLUGIN_DIR . "/$plugin_page") && is_file(WP_PLUGIN_DIR . "/$plugin_page") ) )
                        wp_die(sprintf(__('Cannot load %s.'), htmlentities($plugin_page)));

                do_action('load-' . $plugin_page);

                if (! isset($_GET['noheader']))
                        require_once(ABSPATH . 'wp-admin/admin-header.php');

                include(WP_PLUGIN_DIR . "/$plugin_page");
        }

        include(ABSPATH . 'wp-admin/admin-footer.php');

        exit();
} else if (isset($_GET['import'])) {

        $importer = $_GET['import'];

        if ( ! current_user_can('import') )
                wp_die(__('You are not allowed to import.'));

        if ( validate_file($importer) ) {
                wp_die(__('Invalid importer.'));
        }

        // Allow plugins to define importers as well
        if ( !isset($wp_importers) || !isset($wp_importers[$importer]) || ! is_callable($wp_importers[$importer][2]))
        {
                if (! file_exists(ABSPATH . "wp-admin/import/$importer.php"))
                {
                        wp_die(__('Cannot load importer.'));
                }
                include(ABSPATH . "wp-admin/import/$importer.php");
        }

        $parent_file = 'tools.php';
        $submenu_file = 'import.php';
        $title = __('Import');

        if (! isset($_GET['noheader']))
                require_once(ABSPATH . 'wp-admin/admin-header.php');

        require_once(ABSPATH . 'wp-admin/includes/upgrade.php');

        define('WP_IMPORTING', true);

        call_user_func($wp_importers[$importer][2]);

        include(ABSPATH . 'wp-admin/admin-footer.php');

        // Make sure rules are flushed
        global $wp_rewrite;
        $wp_rewrite->flush_rules(false);

        exit();
} else {
        do_action("load-$pagenow");
}

if ( !empty($_REQUEST['action']) )
        do_action('admin_action_' . $_REQUEST['action']);

?>