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

/**
 * In WordPress Administration Screens
 *
 * @since 2.3.2
 */
if ( ! defined( 'WP_ADMIN' ) ) {
	define( 'WP_ADMIN', true );
}

if ( ! defined( 'WP_NETWORK_ADMIN' ) ) {
	define( 'WP_NETWORK_ADMIN', false );
}

if ( ! defined( 'WP_USER_ADMIN' ) ) {
	define( 'WP_USER_ADMIN', false );
}

if ( ! WP_NETWORK_ADMIN && ! WP_USER_ADMIN ) {
	define( 'WP_BLOG_ADMIN', true );
}

if ( isset( $_GET['import'] ) && ! defined( 'WP_LOAD_IMPORTERS' ) ) {
	define( 'WP_LOAD_IMPORTERS', true );
}

require_once dirname( __DIR__ ) . '/wp-load.php';

nocache_headers();

if ( get_option( 'db_upgraded' ) ) {

flush_rewrite_rules();
	update_option( 'db_upgraded', false, true );

/**
	 * Fires on the next page load after a successful DB upgrade.
	 *
	 * @since 2.8.0
	 */
	do_action( 'after_db_upgrade' );

} elseif ( ! wp_doing_ajax() && empty( $_POST )
	&& (int) get_option( 'db_version' ) !== $wp_db_version
) {

if ( ! is_multisite() ) {
		wp_redirect( admin_url( 'upgrade.php?_wp_http_referer=' . urlencode( wp_unslash( $_SERVER['REQUEST_URI'] ) ) ) );
		exit;
	}

/**
	 * Filters whether to attempt to perform the multisite DB upgrade routine.
	 *
	 * In single site, the user would be redirected to wp-admin/upgrade.php.
	 * In multisite, the DB upgrade routine is automatically fired, but only
	 * when this filter returns true.
	 *
	 * If the network is 50 sites or less, it will run every time. Otherwise,
	 * it will throttle itself to reduce load.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param bool $do_mu_upgrade Whether to perform the Multisite upgrade routine. Default true.
	 */
	if ( apply_filters( 'do_mu_upgrade', true ) ) {
		$c = get_blog_count();

/*
		 * If there are 50 or fewer sites, run every time. Otherwise, throttle to reduce load:
		 * attempt to do no more than threshold value, with some +/- allowed.
		 */
		if ( $c <= 50 || ( $c > 50 && mt_rand( 0, (int) ( $c / 50 ) ) === 1 ) ) {
			require_once ABSPATH . WPINC . '/http.php';
			$response = wp_remote_get(
				admin_url( 'upgrade.php?step=1' ),
				array(
					'timeout'     => 120,
					'httpversion' => '1.1',
				)
			);
			/** This action is documented in wp-admin/network/upgrade.php */
			do_action( 'after_mu_upgrade', $response );
			unset( $response );
		}
		unset( $c );
	}
}

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

auth_redirect();

// Schedule Trash collection.
if ( ! wp_next_scheduled( 'wp_scheduled_delete' ) && ! wp_installing() ) {
	wp_schedule_event( time(), 'daily', 'wp_scheduled_delete' );
}

// Schedule transient cleanup.
if ( ! wp_next_scheduled( 'delete_expired_transients' ) && ! wp_installing() ) {
	wp_schedule_event( time(), 'daily', 'delete_expired_transients' );
}

set_screen_options();

$date_format = __( 'F j, Y' );
$time_format = __( 'g:i a' );

wp_enqueue_script( 'common' );

/**
 * $pagenow is set in vars.php.
 * $wp_importers is sometimes set in wp-admin/includes/import.php.
 * The remaining variables are imported as globals elsewhere, declared as globals here.
 *
 * @global string $pagenow      The filename of the current screen.
 * @global array  $wp_importers
 * @global string $hook_suffix
 * @global string $plugin_page
 * @global string $typenow      The post type of the current screen.
 * @global string $taxnow       The taxonomy of the current screen.
 */
global $pagenow, $wp_importers, $hook_suffix, $plugin_page, $typenow, $taxnow;

$page_hook = null;

$editing = false;

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

if ( isset( $_REQUEST['post_type'] ) && post_type_exists( $_REQUEST['post_type'] ) ) {
	$typenow = $_REQUEST['post_type'];
} else {
	$typenow = '';
}

if ( isset( $_REQUEST['taxonomy'] ) && taxonomy_exists( $_REQUEST['taxonomy'] ) ) {
	$taxnow = $_REQUEST['taxonomy'];
} else {
	$taxnow = '';
}

if ( WP_NETWORK_ADMIN ) {
	require ABSPATH . 'wp-admin/network/menu.php';
} elseif ( WP_USER_ADMIN ) {
	require ABSPATH . 'wp-admin/user/menu.php