<?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.

 *

 * Exists for backward compatibility with legacy file-serving through

 * wp-includes/ms-files.php (wp-content/blogs.php in MU).

 *

 * @since 3.0.0

 */

function ms_upload_constants() {

	// This filter is attached in ms-default-filters.php but that file is not included during SHORTINIT.

	add_filter( 'default_site_option_ms_files_rewriting', '__return_true' );

	if ( ! get_site_option( 'ms_files_rewriting' ) ) {

		return;

	}

	// Base uploads dir relative to ABSPATH.

	if ( ! defined( 'UPLOADBLOGSDIR' ) ) {

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

	}

	// Note, the main site in a post-MU network uses wp-content/uploads.

	// This is handled in wp_upload_dir() by ignoring UPLOADS for this case.

	if ( ! defined( 'UPLOADS' ) ) {

		$site_id = get_current_blog_id();

		define( 'UPLOADS', UPLOADBLOGSDIR . '/' . $site_id . '/files/' );

		// Uploads dir relative to ABSPATH.

		if ( 'wp-content/blogs.dir' === UPLOADBLOGSDIR && ! defined( 'BLOGUPLOADDIR' ) ) {

			define( 'BLOGUPLOADDIR', WP_CONTENT_DIR . '/blogs.dir/' . $site_id . '/files/' );

		}

	}

}

/**

 * Defines Multisite cookie constants.

 *

 * @since 3.0.0

 */

function ms_cookie_constants() {

	$current_network = get_network();

	/**

	 * @since 1.2.0

	 */

	if ( ! defined( 'COOKIEPATH' ) ) {

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

	}

	/**

	 * @since 1.5.0

	 */

	if ( ! defined( 'SITECOOKIEPATH' ) ) {

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

	}

	/**

	 * @since 2.6.0

	 */

	if ( ! defined( 'ADMIN_COOKIE_PATH' ) ) {

			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_network->cookie_domain ) ) {

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

		} else {

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

		}

	}

}

/**

 * Defines Multisite file constants.

 *

 * Exists for backward compatibility with legacy file-serving through

 * wp-includes/ms-files.php (wp-content/blogs.php in MU).

 *

 * @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 $subdomain_error      = null;

	static $subdomain_error_warn = null;

	if ( false === $subdomain_error ) {

		return;

	}

	if ( $subdomain_error ) {

		$vhost_deprecated = sprintf(

			/* translators: 1: VHOST, 2: SUBDOMAIN_INSTALL, 3: wp-config.php, 4: is_subdomain_install() */

			__( 'The constant %1$s <strong>is deprecated</strong>. Use the boolean constant %2$s in %3$s to enable a subdomain configuration. Use %4$s to check whether a subdomain configuration is enabled.' ),

			'<code>VHOST</code>',

			'<code>SUBDOMAIN_INSTALL</code>',

			'<code>wp-config.php</code>',

			'<code>is_subdomain_install()</code>'

		);

		if ( $subdomain_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()', '3.0.0', $vhost_deprecated );

		}

		return;

	}

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

		$subdomain_error = true;

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

			$subdomain_error_warn = true;

		}

	} elseif ( defined( 'SUBDOMAIN_INSTALL' ) ) {

		$subdomain_error = false;

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

	} elseif ( defined( 'VHOST' ) ) {

		$subdomain_error = true;

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

	} else {

		$subdomain_error = false;

		define( 'SUBDOMAIN_INSTALL', false );

		define( 'VHOST', 'no' );

	}

}