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   1  <?php
   2  /**
   3   * Defines constants and global variables that can be overridden, generally in wp-config.php.
   4   *
   5   * @package WordPress
   6   * @subpackage Multisite
   7   * @since 3.0.0
   8   */
   9  
  10  /**
  11   * Defines Multisite upload constants.
  12   *
  13   * Exists for backward compatibility with legacy file-serving through
  14   * wp-includes/ms-files.php (wp-content/blogs.php in MU).
  15   *
  16   * @since 3.0.0
  17   */
  18  function ms_upload_constants() {
  19      global $wpdb;
  20  
  21      // This filter is attached in ms-default-filters.php but that file is not included during SHORTINIT.
  22      add_filter( 'default_site_option_ms_files_rewriting', '__return_true' );
  23  
  24      if ( ! get_site_option( 'ms_files_rewriting' ) )
  25          return;
  26  
  27      // Base uploads dir relative to ABSPATH
  28      if ( !defined( 'UPLOADBLOGSDIR' ) )
  29          define( 'UPLOADBLOGSDIR', 'wp-content/blogs.dir' );
  30  
  31      // Note, the main site in a post-MU network uses wp-content/uploads.
  32      // This is handled in wp_upload_dir() by ignoring UPLOADS for this case.
  33      if ( ! defined( 'UPLOADS' ) ) {
  34          define( 'UPLOADS', UPLOADBLOGSDIR . "/{$wpdb->blogid}/files/" );
  35  
  36          // Uploads dir relative to ABSPATH
  37          if ( 'wp-content/blogs.dir' == UPLOADBLOGSDIR && ! defined( 'BLOGUPLOADDIR' ) )
  38              define( 'BLOGUPLOADDIR', WP_CONTENT_DIR . "/blogs.dir/{$wpdb->blogid}/files/" );
  39      }
  40  }
  41  
  42  /**
  43   * Defines Multisite cookie constants.
  44   *
  45   * @since 3.0.0
  46   */
  47  function ms_cookie_constants(  ) {
  48      $current_site = get_current_site();
  49  
  50      /**
  51       * @since 1.2.0
  52       */
  53      if ( !defined( 'COOKIEPATH' ) )
  54          define( 'COOKIEPATH', $current_site->path );
  55  
  56      /**
  57       * @since 1.5.0
  58       */
  59      if ( !defined( 'SITECOOKIEPATH' ) )
  60          define( 'SITECOOKIEPATH', $current_site->path );
  61  
  62      /**
  63       * @since 2.6.0
  64       */
  65      if ( !defined( 'ADMIN_COOKIE_PATH' ) ) {
  66          if ( ! is_subdomain_install() || trim( parse_url( get_option( 'siteurl' ), PHP_URL_PATH ), '/' ) ) {
  67              define( 'ADMIN_COOKIE_PATH', SITECOOKIEPATH );
  68          } else {
  69              define( 'ADMIN_COOKIE_PATH', SITECOOKIEPATH . 'wp-admin' );
  70          }
  71      }
  72  
  73      /**
  74       * @since 2.0.0
  75       */
  76      if ( !defined('COOKIE_DOMAIN') && is_subdomain_install() ) {
  77          if ( !empty( $current_site->cookie_domain ) )
  78              define('COOKIE_DOMAIN', '.' . $current_site->cookie_domain);
  79          else
  80              define('COOKIE_DOMAIN', '.' . $current_site->domain);
  81      }
  82  }
  83  
  84  /**
  85   * Defines Multisite file constants.
  86   *
  87   * Exists for backward compatibility with legacy file-serving through
  88   * wp-includes/ms-files.php (wp-content/blogs.php in MU).
  89   *
  90   * @since 3.0.0
  91   */
  92  function ms_file_constants() {
  93      /**
  94       * Optional support for X-Sendfile header
  95       * @since 3.0.0
  96       */
  97      if ( !defined( 'WPMU_SENDFILE' ) )
  98          define( 'WPMU_SENDFILE', false );
  99  
 100      /**
 101       * Optional support for X-Accel-Redirect header
 102       * @since 3.0.0
 103       */
 104      if ( !defined( 'WPMU_ACCEL_REDIRECT' ) )
 105          define( 'WPMU_ACCEL_REDIRECT', false );
 106  }
 107  
 108  /**
 109   * Defines Multisite subdomain constants and handles warnings and notices.
 110   *
 111   * VHOST is deprecated in favor of SUBDOMAIN_INSTALL, which is a bool.
 112   *
 113   * On first call, the constants are checked and defined. On second call,
 114   * we will have translations loaded and can trigger warnings easily.
 115   *
 116   * @since 3.0.0
 117   */
 118  function ms_subdomain_constants() {
 119      static $error = null;
 120      static $error_warn = false;
 121  
 122      if ( false === $error )
 123          return;
 124  
 125      if ( $error ) {
 126          $vhost_deprecated = __( 'The constant <code>VHOST</code> <strong>is deprecated</strong>. Use the boolean constant <code>SUBDOMAIN_INSTALL</code> in wp-config.php to enable a subdomain configuration. Use is_subdomain_install() to check whether a subdomain configuration is enabled.' );
 127          if ( $error_warn ) {
 128              trigger_error( __( '<strong>Conflicting values for the constants VHOST and SUBDOMAIN_INSTALL.</strong> The value of SUBDOMAIN_INSTALL will be assumed to be your subdomain configuration setting.' ) . ' ' . $vhost_deprecated, E_USER_WARNING );
 129          } else {
 130               _deprecated_argument( 'define()', '3.0', $vhost_deprecated );
 131          }
 132          return;
 133      }
 134  
 135      if ( defined( 'SUBDOMAIN_INSTALL' ) && defined( 'VHOST' ) ) {
 136          if ( SUBDOMAIN_INSTALL == ( 'yes' == VHOST ) ) {
 137              $error = true;
 138          } else {
 139              $error = $error_warn = true;
 140          }
 141      } elseif ( defined( 'SUBDOMAIN_INSTALL' ) ) {
 142          define( 'VHOST', SUBDOMAIN_INSTALL ? 'yes' : 'no' );
 143      } elseif ( defined( 'VHOST' ) ) {
 144          $error = true;
 145          define( 'SUBDOMAIN_INSTALL', 'yes' == VHOST );
 146      } else {
 147          define( 'SUBDOMAIN_INSTALL', false );
 148          define( 'VHOST', 'no' );
 149      }
 150  }
 151  add_action( 'init', 'ms_subdomain_constants' );