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1 <?php 2 /** 3 * Used to set up and fix common variables and include 4 * the Multisite procedural and class library. 5 * 6 * Allows for some configuration in wp-config.php (see ms-default-constants.php) 7 * 8 * @package WordPress 9 * @subpackage Multisite 10 * @since 3.0.0 11 */ 12 13 /** 14 * Objects representing the current network and current site. 15 * 16 * These may be populated through a custom `sunrise.php`. If not, then this 17 * file will attempt to populate them based on the current request. 18 * 19 * @global WP_Network $current_site The current network. 20 * @global object $current_blog The current site. 21 * @global string $domain Deprecated. The domain of the site found on load. 22 * Use `get_site()->domain` instead. 23 * @global string $path Deprecated. The path of the site found on load. 24 * Use `get_site()->path` instead. 25 * @global int $site_id Deprecated. The ID of the network found on load. 26 * Use `get_current_network_id()` instead. 27 * @global bool $public Deprecated. Whether the site found on load is public. 28 * Use `get_site()->public` instead. 29 * 30 * @since 3.0.0 31 */ 32 global $current_site, $current_blog, $domain, $path, $site_id, $public; 33 34 /** WP_Network class */ 35 require_once ABSPATH . WPINC . '/class-wp-network.php'; 36 37 /** WP_Site class */ 38 require_once ABSPATH . WPINC . '/class-wp-site.php'; 39 40 /** Multisite loader */ 41 require_once ABSPATH . WPINC . '/ms-load.php'; 42 43 /** Default Multisite constants */ 44 require_once ABSPATH . WPINC . '/ms-default-constants.php'; 45 46 if ( defined( 'SUNRISE' ) ) { 47 include_once WP_CONTENT_DIR . '/sunrise.php'; 48 } 49 50 /** Check for and define SUBDOMAIN_INSTALL and the deprecated VHOST constant. */ 51 ms_subdomain_constants(); 52 53 // This block will process a request if the current network or current site objects 54 // have not been populated in the global scope through something like `sunrise.php`. 55 if ( ! isset( $current_site ) || ! isset( $current_blog ) ) { 56 57 $domain = strtolower( stripslashes( $_SERVER['HTTP_HOST'] ) ); 58 if ( str_ends_with( $domain, ':80' ) ) { 59 $domain = substr( $domain, 0, -3 ); 60 $_SERVER['HTTP_HOST'] = substr( $_SERVER['HTTP_HOST'], 0, -3 ); 61 } elseif ( str_ends_with( $domain, ':443' ) ) { 62 $domain = substr( $domain, 0, -4 ); 63 $_SERVER['HTTP_HOST'] = substr( $_SERVER['HTTP_HOST'], 0, -4 ); 64 } 65 66 $path = stripslashes( $_SERVER['REQUEST_URI'] ); 67 if ( is_admin() ) { 68 $path = preg_replace( '#(.*)/wp-admin/.*#', '$1/', $path ); 69 } 70 list( $path ) = explode( '?', $path ); 71 72 $bootstrap_result = ms_load_current_site_and_network( $domain, $path, is_subdomain_install() ); 73 74 if ( true === $bootstrap_result ) { 75 // `$current_blog` and `$current_site are now populated. 76 } elseif ( false === $bootstrap_result ) { 77 ms_not_installed( $domain, $path ); 78 } else { 79 header( 'Location: ' . $bootstrap_result ); 80 exit; 81 } 82 unset( $bootstrap_result ); 83 84 $blog_id = $current_blog->blog_id; 85 $public = $current_blog->public; 86 87 if ( empty( $current_blog->site_id ) ) { 88 // This dates to [MU134] and shouldn't be relevant anymore, 89 // but it could be possible for arguments passed to insert_blog() etc. 90 $current_blog->site_id = 1; 91 } 92 93 $site_id = $current_blog->site_id; 94 wp_load_core_site_options( $site_id ); 95 } 96 97 $wpdb->set_prefix( $table_prefix, false ); // $table_prefix can be set in sunrise.php. 98 $wpdb->set_blog_id( $current_blog->blog_id, $current_blog->site_id ); 99 $table_prefix = $wpdb->get_blog_prefix(); 100 $_wp_switched_stack = array(); 101 $switched = false; 102 103 // Need to init cache again after blog_id is set. 104 wp_start_object_cache(); 105 106 if ( ! $current_site instanceof WP_Network ) { 107 $current_site = new WP_Network( $current_site ); 108 } 109 110 if ( ! $current_blog instanceof WP_Site ) { 111 $current_blog = new WP_Site( $current_blog ); 112 } 113 114 // Define upload directory constants. 115 ms_upload_constants(); 116 117 /** 118 * Fires after the current site and network have been detected and loaded 119 * in multisite's bootstrap. 120 * 121 * @since 4.6.0 122 */ 123 do_action( 'ms_loaded' );
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