require_once( ABSPATH . WPINC . '/ms-load.php' );

require_once( ABSPATH . WPINC . '/ms-default-constants.php' );

if ( defined( 'SUNRISE' ) ) {

}

	// Given the domain and path, let's try to identify the network and site.

	// Usually, it's easier to query the site first, which declares its network.

	// In limited situations, though, we either can or must find the network first.

	$domain = strtolower( stripslashes( $_SERVER['HTTP_HOST'] ) );

	if ( substr( $domain, -3 ) == ':80' ) {

		$domain = substr( $domain, 0, -3 );

		$_SERVER['HTTP_HOST'] = substr( $_SERVER['HTTP_HOST'], 0, -3 );

	} elseif ( substr( $domain, -4 ) == ':443' ) {

		$domain = substr( $domain, 0, -4 );

		$_SERVER['HTTP_HOST'] = substr( $_SERVER['HTTP_HOST'], 0, -4 );

	}

	$path = stripslashes( $_SERVER['REQUEST_URI'] );

	if ( is_admin() ) {

		$path = preg_replace( '#(.*)/wp-admin/.*#', '$1/', $path );

	}

	list( $path ) = explode( '?', $path );

	// If the network is defined in wp-config.php, we can simply use that.

	if ( defined( 'DOMAIN_CURRENT_SITE' ) && defined( 'PATH_CURRENT_SITE' ) ) {

		$current_site = new stdClass;

		$current_site->id = defined( 'SITE_ID_CURRENT_SITE' ) ? SITE_ID_CURRENT_SITE : 1;

		$current_site->domain = DOMAIN_CURRENT_SITE;

		$current_site->path = PATH_CURRENT_SITE;

		if ( defined( 'BLOG_ID_CURRENT_SITE' ) ) {

			$current_site->blog_id = BLOG_ID_CURRENT_SITE;

		} elseif ( defined( 'BLOGID_CURRENT_SITE' ) ) { // deprecated.

			$current_site->blog_id = BLOGID_CURRENT_SITE;

		}

		if ( 0 === strcasecmp( $current_site->domain, $domain ) && 0 === strcasecmp( $current_site->path, $path ) ) {

			$current_blog = get_site_by_path( $domain, $path );

		} elseif ( '/' !== $current_site->path && 0 === strcasecmp( $current_site->domain, $domain ) && 0 === stripos( $path, $current_site->path ) ) {

			// If the current network has a path and also matches the domain and path of the request,

			// we need to look for a site using the first path segment following the network's path.

			$current_blog = get_site_by_path( $domain, $path, 1 + count( explode( '/', trim( $current_site->path, '/' ) ) ) );

			// Otherwise, use the first path segment (as usual).

			$current_blog = get_site_by_path( $domain, $path, 1 );

		}

	} elseif ( ! is_subdomain_install() ) {

		/*

		 * A "subdomain" install can be re-interpreted to mean "can support any domain".

		 * If we're not dealing with one of these installs, then the important part is determining

		 * the network first, because we need the network's path to identify any sites.

		 */

		if ( ! $current_site = wp_cache_get( 'current_network', 'site-options' ) ) {

			// Are there even two networks installed?

			$one_network = $wpdb->get_row( "SELECT * FROM $wpdb->site LIMIT 2" ); // [sic]

			if ( 1 === $wpdb->num_rows ) {

				$current_site = wp_get_network( $one_network );

				wp_cache_add( 'current_network', $current_site, 'site-options' );

			} elseif ( 0 === $wpdb->num_rows ) {

				ms_not_installed();

			}

		}

		if ( empty( $current_site ) ) {

			$current_site = get_network_by_path( $domain, $path, 1 );

		}

		if ( empty( $current_site ) ) {

			ms_not_installed();

		} elseif ( $path === $current_site->path ) {

			$current_blog = get_site_by_path( $domain, $path );

		} else {

			// Search the network path + one more path segment (on top of the network path).

			$current_blog = get_site_by_path( $domain, $path, substr_count( $current_site->path, '/' ) );

		}

	} else {

		// Find the site by the domain and at most the first path segment.

		$current_blog = get_site_by_path( $domain, $path, 1 );

		if ( $current_blog ) {

			$current_site = wp_get_network( $current_blog->site_id ? $current_blog->site_id : 1 );

		} else {

			// If you don't have a site with the same domain/path as a network, you're pretty screwed, but:

			$current_site = get_network_by_path( $domain, $path, 1 );

	// The network declared by the site trumps any constants.

	if ( $current_blog && $current_blog->site_id != $current_site->id ) {

		$current_site = wp_get_network( $current_blog->site_id );

	}

	// No network has been found, bail.

	if ( empty( $current_site ) ) {

		ms_not_installed();

	}

	// @todo Investigate when exactly this can occur.

	if ( empty( $current_blog ) && defined( 'WP_INSTALLING' ) ) {

		$current_blog = new stdClass;

		$current_blog->blog_id = $blog_id = 1;

	// No site has been found, bail.

	if ( empty( $current_blog ) ) {

		// We're going to redirect to the network URL, with some possible modifications.

		$scheme = is_ssl() ? 'https' : 'http';

		$destination = "$scheme://{$current_site->domain}{$current_site->path}";

		/**

		 * Fires when a network can be determined but a site cannot.

		 *

		 * At the time of this action, the only recourse is to redirect somewhere

		 * and exit. If you want to declare a particular site, do so earlier.

		 *

		 * @since 3.9.0

		 *

		 * @param object $current_site The network that had been determined.

		 * @param string $domain       The domain used to search for a site.

		 * @param string $path         The path used to search for a site.

		 */

		do_action( 'ms_site_not_found', $current_site, $domain, $path );

		if ( is_subdomain_install() && ! defined( 'NOBLOGREDIRECT' ) ) {

			// For a "subdomain" install, redirect to the signup form specifically.

			$destination .= 'wp-signup.php?new=' . str_replace( '.' . $current_site->domain, '', $domain );

		} elseif ( is_subdomain_install() ) {

			// For a "subdomain" install, the NOBLOGREDIRECT constant

			// can be used to avoid a redirect to the signup form.

			// Using the ms_site_not_found action is preferred to the constant.

			if ( '%siteurl%' !== NOBLOGREDIRECT ) {

				$destination = NOBLOGREDIRECT;

			}

		} elseif ( 0 === strcasecmp( $current_site->domain, $domain ) ) {

			/*

			 * If the domain we were searching for matches the network's domain,

			 * it's no use redirecting back to ourselves -- it'll cause a loop.

			 * As we couldn't find a site, we're simply not installed.

			 */

			ms_not_installed();

		exit;

	// @todo What if the domain of the network doesn't match the current site?

	$current_site->cookie_domain = $current_site->domain;

	if ( 'www.' === substr( $current_site->cookie_domain, 0, 4 ) ) {

		$current_site->cookie_domain = substr( $current_site->cookie_domain, 4 );

	}

	// Figure out the current network's main site.

	if ( ! isset( $current_site->blog_id ) ) {

		if ( $current_blog->domain === $current_site->domain && $current_blog->path === $current_site->path ) {

			$current_site->blog_id = $current_blog->blog_id;

		} elseif ( ! $current_site->blog_id = wp_cache_get( 'network:' . $current_site->id . ':main_site', 'site-options' ) ) {

			$current_site->blog_id = $wpdb->get_var( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE domain = %s AND path = %s",

				$current_site->domain, $current_site->path ) );

			wp_cache_add( 'network:' . $current_site->id . ':main_site', $current_site->blog_id, 'site-options' );

	if ( empty( $current_blog->site_id ) ) {

		// This dates to [MU134] and shouldn't be relevant anymore,

		// but it could be possible for arguments passed to insert_blog() etc.

	}

	$site_id = $current_blog->site_id;

	wp_load_core_site_options( $site_id );

if ( ! isset( $current_site->site_name ) ) {

	$current_site->site_name = get_site_option( 'site_name' );

	if ( ! $current_site->site_name ) {

		$current_site->site_name = ucfirst( $current_site->domain );

	}

}