3 * Sets up the default filters and actions for Multisite.
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.
8 * Not all of the Multisite default hooks are found in ms-default-filters.php
11 * @subpackage Multisite
12 * @see default-filters.php
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' );
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 );
29 add_action( 'signup_hidden_fields', 'signup_nonce_fields' );
32 add_action( 'template_redirect', 'maybe_redirect_404' );
33 add_filter( 'allowed_redirect_hosts', 'redirect_this_site' );
36 add_filter( 'term_id_filter', 'global_terms', 10, 2 );
37 add_action( 'delete_post', '_update_posts_count_on_delete' );
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 add_action( 'transition_post_status', '_update_posts_count_on_transition_post_status', 10, 2 );
43 add_action( 'admin_init', 'wp_schedule_update_network_counts');
44 add_action( 'update_network_counts', 'wp_update_network_counts');
45 foreach ( array( 'user_register', 'deleted_user', 'wpmu_new_user', 'make_spam_user', 'make_ham_user' ) as $action )
46 add_action( $action, 'wp_maybe_update_network_user_counts' );
47 foreach ( array( 'make_spam_blog', 'make_ham_blog', 'archive_blog', 'unarchive_blog', 'make_delete_blog', 'make_undelete_blog' ) as $action )
48 add_action( $action, 'wp_maybe_update_network_site_counts' );
52 add_filter( 'wp_upload_bits', 'upload_is_file_too_big' );
53 add_filter( 'import_upload_size_limit', 'fix_import_form_size' );
54 add_filter( 'upload_mimes', 'check_upload_mimes' );
55 add_filter( 'upload_size_limit', 'upload_size_limit_filter' );
56 add_action( 'upload_ui_over_quota', 'multisite_over_quota_message' );
59 add_action( 'phpmailer_init', 'fix_phpmailer_messageid' );
61 // Disable somethings by default for multisite
62 add_filter( 'enable_update_services_configuration', '__return_false' );
63 if ( ! defined('POST_BY_EMAIL') || ! POST_BY_EMAIL ) // back compat constant.
64 add_filter( 'enable_post_by_email_configuration', '__return_false' );
65 if ( ! defined('EDIT_ANY_USER') || ! EDIT_ANY_USER ) // back compat constant.
66 add_filter( 'enable_edit_any_user_configuration', '__return_false' );
67 add_filter( 'force_filtered_html_on_import', '__return_true' );
69 // WP_HOME and WP_SITEURL should not have any effect in MS
70 remove_filter( 'option_siteurl', '_config_wp_siteurl' );
71 remove_filter( 'option_home', '_config_wp_home' );
73 // Some options changes should trigger blog details refresh.
74 add_action( 'update_option_blogname', 'refresh_blog_details', 10, 0 );
75 add_action( 'update_option_siteurl', 'refresh_blog_details', 10, 0 );
76 add_action( 'update_option_post_count', 'refresh_blog_details', 10, 0 );
78 // If the network upgrade hasn't run yet, assume ms-files.php rewriting is used.
79 add_filter( 'default_site_option_ms_files_rewriting', '__return_true' );
81 // Whitelist multisite domains for HTTP requests
82 add_filter( 'http_request_host_is_external', 'ms_allowed_http_request_hosts', 20, 2 );