1 <?php

     2 /**

     3  * Sets up the default filters and actions for Multisite.

     4  *

     5  * If you need to remove a default hook, this file will give you the priority

     6  * for which to use to remove the hook.

     7  *

     8  * Not all of the Multisite default hooks are found in ms-default-filters.php

     9  *

    10  * @package WordPress

    11  * @subpackage Multisite

    12  * @see default-filters.php

    13  * @since 3.0.0

    14  */

    15 

    16 // Users

    17 add_filter( 'wpmu_validate_user_signup', 'signup_nonce_check' );

    18 add_action( 'init', 'maybe_add_existing_user_to_blog' );

    19 add_action( 'wpmu_new_user', 'newuser_notify_siteadmin' );

    20 add_action( 'wpmu_activate_user', 'add_new_user_to_blog', 10, 3 );

    21 add_filter( 'sanitize_user', 'strtolower' );

    22 

    23 // Blogs

    24 add_filter( 'wpmu_validate_blog_signup', 'signup_nonce_check' );

    25 add_action( 'wpmu_new_blog', 'wpmu_log_new_registrations', 10, 2 );

    26 add_action( 'wpmu_new_blog', 'newblog_notify_siteadmin', 10, 2 );

    27 

    28 // Register Nonce

    29 add_action( 'signup_hidden_fields', 'signup_nonce_fields' );

    30 

    31 // Template

    32 add_action( 'template_redirect', 'maybe_redirect_404' );

    33 add_filter( 'allowed_redirect_hosts', 'redirect_this_site' );

    34 

    35 // Administration

    36 add_filter( 'term_id_filter', 'global_terms', 10, 2 );

    37 add_action( 'publish_post', 'update_posts_count' );

    38 add_action( 'delete_post', '_update_blog_date_on_post_delete' );

    39 add_action( 'transition_post_status', '_update_blog_date_on_post_publish', 10, 3 );

    40 

    41 // Counts

    42 add_action( 'admin_init', 'wp_schedule_update_network_counts');

    43 add_action( 'update_network_counts', 'wp_update_network_counts');

    44 foreach ( array( 'user_register', 'deleted_user', 'wpmu_new_user', 'make_spam_user', 'make_ham_user' ) as $action )

    45 	add_action( $action, 'wp_maybe_update_network_user_counts' );

    46 foreach ( array( 'make_spam_blog', 'make_ham_blog', 'archive_blog', 'unarchive_blog', 'make_delete_blog', 'make_undelete_blog' ) as $action )

    47 	add_action( $action, 'wp_maybe_update_network_site_counts' );

    48 unset( $action );

    49 

    50 // Files

    51 add_filter( 'wp_upload_bits', 'upload_is_file_too_big' );

    52 add_filter( 'import_upload_size_limit', 'fix_import_form_size' );

    53 add_filter( 'upload_mimes', 'check_upload_mimes' );

    54 add_filter( 'upload_size_limit', 'upload_size_limit_filter' );

    55 add_action( 'upload_ui_over_quota', 'multisite_over_quota_message' );

    56 

    57 // Mail

    58 add_action( 'phpmailer_init', 'fix_phpmailer_messageid' );

    59 

    60 // Disable somethings by default for multisite

    61 add_filter( 'enable_update_services_configuration', '__return_false' );

    62 if ( ! defined('POST_BY_EMAIL') || ! POST_BY_EMAIL ) // back compat constant.

    63 	add_filter( 'enable_post_by_email_configuration', '__return_false' );

    64 if ( ! defined('EDIT_ANY_USER') || ! EDIT_ANY_USER ) // back compat constant.

    65 	add_filter( 'enable_edit_any_user_configuration', '__return_false' );

    66 add_filter( 'force_filtered_html_on_import', '__return_true' );

    67 

    68 // WP_HOME and WP_SITEURL should not have any effect in MS

    69 remove_filter( 'option_siteurl', '_config_wp_siteurl' );

    70 remove_filter( 'option_home',    '_config_wp_home'    );

    71 

    72 // If the network upgrade hasn't run yet, assume ms-files.php rewriting is used.

    73 add_filter( 'default_site_option_ms_files_rewriting', '__return_true' );

    74 

    75 // Whitelist multisite domains for HTTP requests

    76 add_filter( 'http_request_host_is_external', 'ms_allowed_http_request_hosts', 20, 2 );