<?php

/**

 * Defines constants and global variables that can be overridden, generally in wp-config.php.

 *

 * @package WordPress

 * @subpackage Multisite

 * @since 3.0.0

 */

/**

 * Defines Multisite upload constants.

 *

 * @since 3.0.0

 */

function ms_upload_constants(  ) {

	global $wpdb;

	/** @since 3.0.0 */

	// Base uploads dir relative to ABSPATH

	if ( !defined( 'UPLOADBLOGSDIR' ) )

		define( 'UPLOADBLOGSDIR', 'wp-content/blogs.dir' );

	/** @since 3.0.0 */

	if ( !defined( 'UPLOADS' ) ) {

		// Uploads dir relative to ABSPATH

		define( 'UPLOADS', UPLOADBLOGSDIR . "/{$wpdb->blogid}/files/" );

		if ( 'wp-content/blogs.dir' == UPLOADBLOGSDIR )

			define( 'BLOGUPLOADDIR', WP_CONTENT_DIR . "/blogs.dir/{$wpdb->blogid}/files/" );

	}

}

/**

 * Defines Multisite cookie constants.

 *

 * @since 3.0.0

 */

function ms_cookie_constants(  ) {

	global $current_site;

	/**

	 * @since 1.2.0

	 */

	if ( !defined( 'COOKIEPATH' ) )

		define( 'COOKIEPATH', $current_site->path );

	/**

	 * @since 1.5.0

	 */

	if ( !defined( 'SITECOOKIEPATH' ) )

		define( 'SITECOOKIEPATH', $current_site->path );

	/**

	 * @since 2.6.0

	 */

	if ( !defined( 'ADMIN_COOKIE_PATH' ) ) {

		if( !is_subdomain_install() ) {

			define( 'ADMIN_COOKIE_PATH', SITECOOKIEPATH );

		} else {

			define( 'ADMIN_COOKIE_PATH', SITECOOKIEPATH . 'wp-admin' );

		}

	}

	/**

	 * @since 2.0.0

	 */

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

		if ( !empty( $current_site->cookie_domain ) )

			define('COOKIE_DOMAIN', '.' . $current_site->cookie_domain);

		else

			define('COOKIE_DOMAIN', '.' . $current_site->domain);

	}

}

/**

 * Defines Multisite file constants.

 *

 * @since 3.0.0

 */

function ms_file_constants(  ) {

	/**

	 * Optional support for X-Sendfile header

	 * @since 3.0.0

	 */

	if ( !defined( 'WPMU_SENDFILE' ) )

		define( 'WPMU_SENDFILE', false );

	/**

	 * Optional support for X-Accel-Redirect header

	 * @since 3.0.0

	 */

	if ( !defined( 'WPMU_ACCEL_REDIRECT' ) )

		define( 'WPMU_ACCEL_REDIRECT', false );

}

/**

 * Defines Multisite subdomain constants and handles warnings and notices.

 *

 * VHOST is deprecated in favor of SUBDOMAIN_INSTALL, which is a bool.

 *

 * On first call, the constants are checked and defined. On second call,

 * we will have translations loaded and can trigger warnings easily.

 *

 * @since 3.0.0

 */

function ms_subdomain_constants() {

	static $error = null;

	static $error_warn = false;

	if ( false === $error )

		return;

	if ( $error ) {

		$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.' );

		if ( $error_warn ) {

			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 );

		} else {

	 		_deprecated_argument( 'define()', '3.0', $vhost_deprecated );

		}

		return;

	}

	if ( defined( 'SUBDOMAIN_INSTALL' ) && defined( 'VHOST' ) ) {

		if ( SUBDOMAIN_INSTALL == ( 'yes' == VHOST ) ) {

			$error = true;

		} else {

			$error = $error_warn = true;

		}

	} elseif ( defined( 'SUBDOMAIN_INSTALL' ) ) {

		define( 'VHOST', SUBDOMAIN_INSTALL ? 'yes' : 'no' );

	} elseif ( defined( 'VHOST' ) ) {

		$error = true;

		define( 'SUBDOMAIN_INSTALL', 'yes' == VHOST );

	} else {

		define( 'SUBDOMAIN_INSTALL', false );

		define( 'VHOST', 'no' );

	}

}

add_action( 'init', 'ms_subdomain_constants' );