Adding upstream version 6.4.3+dfsg1.upstream/6.4.3+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 968 insertions, 0 deletions

diff --git a/wp-includes/ms-blogs.php b/wp-includes/ms-blogs.php
new file mode 100644
index 0000000..eddb99c
--- /dev/null
+++ b/wp-includes/ms-blogs.php
@@ -0,0 +1,968 @@
+<?php
+
+/**
+ * Site/blog functions that work with the blogs table and related data.
+ *
+ * @package WordPress
+ * @subpackage Multisite
+ * @since MU (3.0.0)
+ */
+
+require_once ABSPATH . WPINC . '/ms-site.php';
+require_once ABSPATH . WPINC . '/ms-network.php';
+
+/**
+ * Updates the last_updated field for the current site.
+ *
+ * @since MU (3.0.0)
+ */
+function wpmu_update_blogs_date() {
+	$site_id = get_current_blog_id();
+
+	update_blog_details( $site_id, array( 'last_updated' => current_time( 'mysql', true ) ) );
+	/**
+	 * Fires after the blog details are updated.
+	 *
+	 * @since MU (3.0.0)
+	 *
+	 * @param int $blog_id Site ID.
+	 */
+	do_action( 'wpmu_blog_updated', $site_id );
+}
+
+/**
+ * Gets a full site URL, given a site ID.
+ *
+ * @since MU (3.0.0)
+ *
+ * @param int $blog_id Site ID.
+ * @return string Full site URL if found. Empty string if not.
+ */
+function get_blogaddress_by_id( $blog_id ) {
+	$bloginfo = get_site( (int) $blog_id );
+
+	if ( empty( $bloginfo ) ) {
+		return '';
+	}
+
+	$scheme = parse_url( $bloginfo->home, PHP_URL_SCHEME );
+	$scheme = empty( $scheme ) ? 'http' : $scheme;
+
+	return esc_url( $scheme . '://' . $bloginfo->domain . $bloginfo->path );
+}
+
+/**
+ * Gets a full site URL, given a site name.
+ *
+ * @since MU (3.0.0)
+ *
+ * @param string $blogname Name of the subdomain or directory.
+ * @return string
+ */
+function get_blogaddress_by_name( $blogname ) {
+	if ( is_subdomain_install() ) {
+		if ( 'main' === $blogname ) {
+			$blogname = 'www';
+		}
+		$url = rtrim( network_home_url(), '/' );
+		if ( ! empty( $blogname ) ) {
+			$url = preg_replace( '|^([^\.]+://)|', '${1}' . $blogname . '.', $url );
+		}
+	} else {
+		$url = network_home_url( $blogname );
+	}
+	return esc_url( $url . '/' );
+}
+
+/**
+ * Retrieves a site's ID given its (subdomain or directory) slug.
+ *
+ * @since MU (3.0.0)
+ * @since 4.7.0 Converted to use `get_sites()`.
+ *
+ * @param string $slug A site's slug.
+ * @return int|null The site ID, or null if no site is found for the given slug.
+ */
+function get_id_from_blogname( $slug ) {
+	$current_network = get_network();
+	$slug            = trim( $slug, '/' );
+
+	if ( is_subdomain_install() ) {
+		$domain = $slug . '.' . preg_replace( '|^www\.|', '', $current_network->domain );
+		$path   = $current_network->path;
+	} else {
+		$domain = $current_network->domain;
+		$path   = $current_network->path . $slug . '/';
+	}
+
+	$site_ids = get_sites(
+		array(
+			'number'                 => 1,
+			'fields'                 => 'ids',
+			'domain'                 => $domain,
+			'path'                   => $path,
+			'update_site_meta_cache' => false,
+		)
+	);
+
+	if ( empty( $site_ids ) ) {
+		return null;
+	}
+
+	return array_shift( $site_ids );
+}
+
+/**
+ * Retrieves the details for a blog from the blogs table and blog options.
+ *
+ * @since MU (3.0.0)
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param int|string|array $fields  Optional. A blog ID, a blog slug, or an array of fields to query against.
+ *                                  Defaults to the current blog ID.
+ * @param bool             $get_all Whether to retrieve all details or only the details in the blogs table.
+ *                                  Default is true.
+ * @return WP_Site|false Blog details on success. False on failure.
+ */
+function get_blog_details( $fields = null, $get_all = true ) {
+	global $wpdb;
+
+	if ( is_array( $fields ) ) {
+		if ( isset( $fields['blog_id'] ) ) {
+			$blog_id = $fields['blog_id'];
+		} elseif ( isset( $fields['domain'] ) && isset( $fields['path'] ) ) {
+			$key  = md5( $fields['domain'] . $fields['path'] );
+			$blog = wp_cache_get( $key, 'blog-lookup' );
+			if ( false !== $blog ) {
+				return $blog;
+			}
+			if ( str_starts_with( $fields['domain'], 'www.' ) ) {
+				$nowww = substr( $fields['domain'], 4 );
+				$blog  = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain IN (%s,%s) AND path = %s ORDER BY CHAR_LENGTH(domain) DESC", $nowww, $fields['domain'], $fields['path'] ) );
+			} else {
+				$blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s AND path = %s", $fields['domain'], $fields['path'] ) );
+			}
+			if ( $blog ) {
+				wp_cache_set( $blog->blog_id . 'short', $blog, 'blog-details' );
+				$blog_id = $blog->blog_id;
+			} else {
+				return false;
+			}
+		} elseif ( isset( $fields['domain'] ) && is_subdomain_install() ) {
+			$key  = md5( $fields['domain'] );
+			$blog = wp_cache_get( $key, 'blog-lookup' );
+			if ( false !== $blog ) {
+				return $blog;
+			}
+			if ( str_starts_with( $fields['domain'], 'www.' ) ) {
+				$nowww = substr( $fields['domain'], 4 );
+				$blog  = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain IN (%s,%s) ORDER BY CHAR_LENGTH(domain) DESC", $nowww, $fields['domain'] ) );
+			} else {
+				$blog = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->blogs WHERE domain = %s", $fields['domain'] ) );
+			}
+			if ( $blog ) {
+				wp_cache_set( $blog->blog_id . 'short', $blog, 'blog-details' );
+				$blog_id = $blog->blog_id;
+			} else {
+				return false;
+			}
+		} else {
+			return false;
+		}
+	} else {
+		if ( ! $fields ) {
+			$blog_id = get_current_blog_id();
+		} elseif ( ! is_numeric( $fields ) ) {
+			$blog_id = get_id_from_blogname( $fields );
+		} else {
+			$blog_id = $fields;
+		}
+	}
+
+	$blog_id = (int) $blog_id;
+
+	$all     = $get_all ? '' : 'short';
+	$details = wp_cache_get( $blog_id . $all, 'blog-details' );
+
+	if ( $details ) {
+		if ( ! is_object( $details ) ) {
+			if ( -1 == $details ) {
+				return false;
+			} else {
+				// Clear old pre-serialized objects. Cache clients do better with that.
+				wp_cache_delete( $blog_id . $all, 'blog-details' );
+				unset( $details );
+			}
+		} else {
+			return $details;
+		}
+	}
+
+	// Try the other cache.
+	if ( $get_all ) {
+		$details = wp_cache_get( $blog_id . 'short', 'blog-details' );
+	} else {
+		$details = wp_cache_get( $blog_id, 'blog-details' );
+		// If short was requested and full cache is set, we can return.
+		if ( $details ) {
+			if ( ! is_object( $details ) ) {
+				if ( -1 == $details ) {
+					return false;
+				} else {
+					// Clear old pre-serialized objects. Cache clients do better with that.
+					wp_cache_delete( $blog_id, 'blog-details' );
+					unset( $details );
+				}
+			} else {
+				return $details;
+			}
+		}
+	}
+
+	if ( empty( $details ) ) {
+		$details = WP_Site::get_instance( $blog_id );
+		if ( ! $details ) {
+			// Set the full cache.
+			wp_cache_set( $blog_id, -1, 'blog-details' );
+			return false;
+		}
+	}
+
+	if ( ! $details instanceof WP_Site ) {
+		$details = new WP_Site( $details );
+	}
+
+	if ( ! $get_all ) {
+		wp_cache_set( $blog_id . $all, $details, 'blog-details' );
+		return $details;
+	}
+
+	$switched_blog = false;
+
+	if ( get_current_blog_id() !== $blog_id ) {
+		switch_to_blog( $blog_id );
+		$switched_blog = true;
+	}
+
+	$details->blogname   = get_option( 'blogname' );
+	$details->siteurl    = get_option( 'siteurl' );
+	$details->post_count = get_option( 'post_count' );
+	$details->home       = get_option( 'home' );
+
+	if ( $switched_blog ) {
+		restore_current_blog();
+	}
+
+	/**
+	 * Filters a blog's details.
+	 *
+	 * @since MU (3.0.0)
+	 * @deprecated 4.7.0 Use {@see 'site_details'} instead.
+	 *
+	 * @param WP_Site $details The blog details.
+	 */
+	$details = apply_filters_deprecated( 'blog_details', array( $details ), '4.7.0', 'site_details' );
+
+	wp_cache_set( $blog_id . $all, $details, 'blog-details' );
+
+	$key = md5( $details->domain . $details->path );
+	wp_cache_set( $key, $details, 'blog-lookup' );
+
+	return $details;
+}
+
+/**
+ * Clears the blog details cache.
+ *
+ * @since MU (3.0.0)
+ *
+ * @param int $blog_id Optional. Blog ID. Defaults to current blog.
+ */
+function refresh_blog_details( $blog_id = 0 ) {
+	$blog_id = (int) $blog_id;
+	if ( ! $blog_id ) {
+		$blog_id = get_current_blog_id();
+	}
+
+	clean_blog_cache( $blog_id );
+}
+
+/**
+ * Updates the details for a blog and the blogs table for a given blog ID.
+ *
+ * @since MU (3.0.0)
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param int   $blog_id Blog ID.
+ * @param array $details Array of details keyed by blogs table field names.
+ * @return bool True if update succeeds, false otherwise.
+ */
+function update_blog_details( $blog_id, $details = array() ) {
+	global $wpdb;
+
+	if ( empty( $details ) ) {
+		return false;
+	}
+
+	if ( is_object( $details ) ) {
+		$details = get_object_vars( $details );
+	}
+
+	$site = wp_update_site( $blog_id, $details );
+
+	if ( is_wp_error( $site ) ) {
+		return false;
+	}
+
+	return true;
+}
+
+/**
+ * Cleans the site details cache for a site.
+ *
+ * @since 4.7.4
+ *
+ * @param int $site_id Optional. Site ID. Default is the current site ID.
+ */
+function clean_site_details_cache( $site_id = 0 ) {
+	$site_id = (int) $site_id;
+	if ( ! $site_id ) {
+		$site_id = get_current_blog_id();
+	}
+
+	wp_cache_delete( $site_id, 'site-details' );
+	wp_cache_delete( $site_id, 'blog-details' );
+}
+
+/**
+ * Retrieves option value for a given blog id based on name of option.
+ *
+ * If the option does not exist or does not have a value, then the return value
+ * will be false. This is useful to check whether you need to install an option
+ * and is commonly used during installation of plugin options and to test
+ * whether upgrading is required.
+ *
+ * If the option was serialized then it will be unserialized when it is returned.
+ *
+ * @since MU (3.0.0)
+ *
+ * @param int    $id            A blog ID. Can be null to refer to the current blog.
+ * @param string $option        Name of option to retrieve. Expected to not be SQL-escaped.
+ * @param mixed  $default_value Optional. Default value to return if the option does not exist.
+ * @return mixed Value set for the option.
+ */
+function get_blog_option( $id, $option, $default_value = false ) {
+	$id = (int) $id;
+
+	if ( empty( $id ) ) {
+		$id = get_current_blog_id();
+	}
+
+	if ( get_current_blog_id() == $id ) {
+		return get_option( $option, $default_value );
+	}
+
+	switch_to_blog( $id );
+	$value = get_option( $option, $default_value );
+	restore_current_blog();
+
+	/**
+	 * Filters a blog option value.
+	 *
+	 * The dynamic portion of the hook name, `$option`, refers to the blog option name.
+	 *
+	 * @since 3.5.0
+	 *
+	 * @param string  $value The option value.
+	 * @param int     $id    Blog ID.
+	 */
+	return apply_filters( "blog_option_{$option}", $value, $id );
+}
+
+/**
+ * Adds a new option for a given blog ID.
+ *
+ * You do not need to serialize values. If the value needs to be serialized, then
+ * it will be serialized before it is inserted into the database. Remember,
+ * resources can not be serialized or added as an option.
+ *
+ * You can create options without values and then update the values later.
+ * Existing options will not be updated and checks are performed to ensure that you
+ * aren't adding a protected WordPress option. Care should be taken to not name
+ * options the same as the ones which are protected.
+ *
+ * @since MU (3.0.0)
+ *
+ * @param int    $id     A blog ID. Can be null to refer to the current blog.
+ * @param string $option Name of option to add. Expected to not be SQL-escaped.
+ * @param mixed  $value  Option value, can be anything. Expected to not be SQL-escaped.
+ * @return bool True if the option was added, false otherwise.
+ */
+function add_blog_option( $id, $option, $value ) {
+	$id = (int) $id;
+
+	if ( empty( $id ) ) {
+		$id = get_current_blog_id();
+	}
+
+	if ( get_current_blog_id() == $id ) {
+		return add_option( $option, $value );
+	}
+
+	switch_to_blog( $id );
+	$return = add_option( $option, $value );
+	restore_current_blog();
+
+	return $return;
+}
+
+/**
+ * Removes an option by name for a given blog ID. Prevents removal of protected WordPress options.
+ *
+ * @since MU (3.0.0)
+ *
+ * @param int    $id     A blog ID. Can be null to refer to the current blog.
+ * @param string $option Name of option to remove. Expected to not be SQL-escaped.
+ * @return bool True if the option was deleted, false otherwise.
+ */
+function delete_blog_option( $id, $option ) {
+	$id = (int) $id;
+
+	if ( empty( $id ) ) {
+		$id = get_current_blog_id();
+	}
+
+	if ( get_current_blog_id() == $id ) {
+		return delete_option( $option );
+	}
+
+	switch_to_blog( $id );
+	$return = delete_option( $option );
+	restore_current_blog();
+
+	return $return;
+}
+
+/**
+ * Updates an option for a particular blog.
+ *
+ * @since MU (3.0.0)
+ *
+ * @param int    $id         The blog ID.
+ * @param string $option     The option key.
+ * @param mixed  $value      The option value.
+ * @param mixed  $deprecated Not used.
+ * @return bool True if the value was updated, false otherwise.
+ */
+function update_blog_option( $id, $option, $value, $deprecated = null ) {
+	$id = (int) $id;
+
+	if ( null !== $deprecated ) {
+		_deprecated_argument( __FUNCTION__, '3.1.0' );
+	}
+
+	if ( get_current_blog_id() == $id ) {
+		return update_option( $option, $value );
+	}
+
+	switch_to_blog( $id );
+	$return = update_option( $option, $value );
+	restore_current_blog();
+
+	return $return;
+}
+
+/**
+ * Switches the current blog.
+ *
+ * This function is useful if you need to pull posts, or other information,
+ * from other blogs. You can switch back afterwards using restore_current_blog().
+ *
+ * Things that aren't switched:
+ *  - plugins. See #14941
+ *
+ * @see restore_current_blog()
+ * @since MU (3.0.0)
+ *
+ * @global wpdb            $wpdb               WordPress database abstraction object.
+ * @global int             $blog_id
+ * @global array           $_wp_switched_stack
+ * @global bool            $switched
+ * @global string          $table_prefix
+ * @global WP_Object_Cache $wp_object_cache
+ *
+ * @param int  $new_blog_id The ID of the blog to switch to. Default: current blog.
+ * @param bool $deprecated  Not used.
+ * @return true Always returns true.
+ */
+function switch_to_blog( $new_blog_id, $deprecated = null ) {
+	global $wpdb;
+
+	$prev_blog_id = get_current_blog_id();
+	if ( empty( $new_blog_id ) ) {
+		$new_blog_id = $prev_blog_id;
+	}
+
+	$GLOBALS['_wp_switched_stack'][] = $prev_blog_id;
+
+	/*
+	 * If we're switching to the same blog id that we're on,
+	 * set the right vars, do the associated actions, but skip
+	 * the extra unnecessary work
+	 */
+	if ( $new_blog_id == $prev_blog_id ) {
+		/**
+		 * Fires when the blog is switched.
+		 *
+		 * @since MU (3.0.0)
+		 * @since 5.4.0 The `$context` parameter was added.
+		 *
+		 * @param int    $new_blog_id  New blog ID.
+		 * @param int    $prev_blog_id Previous blog ID.
+		 * @param string $context      Additional context. Accepts 'switch' when called from switch_to_blog()
+		 *                             or 'restore' when called from restore_current_blog().
+		 */
+		do_action( 'switch_blog', $new_blog_id, $prev_blog_id, 'switch' );
+
+		$GLOBALS['switched'] = true;
+
+		return true;
+	}
+
+	$wpdb->set_blog_id( $new_blog_id );
+	$GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
+	$GLOBALS['blog_id']      = $new_blog_id;
+
+	if ( function_exists( 'wp_cache_switch_to_blog' ) ) {
+		wp_cache_switch_to_blog( $new_blog_id );
+	} else {
+		global $wp_object_cache;
+
+		if ( is_object( $wp_object_cache ) && isset( $wp_object_cache->global_groups ) ) {
+			$global_groups = $wp_object_cache->global_groups;
+		} else {
+			$global_groups = false;
+		}
+
+		wp_cache_init();
+
+		if ( function_exists( 'wp_cache_add_global_groups' ) ) {
+			if ( is_array( $global_groups ) ) {
+				wp_cache_add_global_groups( $global_groups );
+			} else {
+				wp_cache_add_global_groups(
+					array(
+						'blog-details',
+						'blog-id-cache',
+						'blog-lookup',
+						'blog_meta',
+						'global-posts',
+						'networks',
+						'network-queries',
+						'sites',
+						'site-details',
+						'site-options',
+						'site-queries',
+						'site-transient',
+						'rss',
+						'users',
+						'user-queries',
+						'user_meta',
+						'useremail',
+						'userlogins',
+						'userslugs',
+					)
+				);
+			}
+
+			wp_cache_add_non_persistent_groups( array( 'counts', 'plugins', 'theme_json' ) );
+		}
+	}
+
+	/** This filter is documented in wp-includes/ms-blogs.php */
+	do_action( 'switch_blog', $new_blog_id, $prev_blog_id, 'switch' );
+
+	$GLOBALS['switched'] = true;
+
+	return true;
+}
+
+/**
+ * Restores the current blog, after calling switch_to_blog().
+ *
+ * @see switch_to_blog()
+ * @since MU (3.0.0)
+ *
+ * @global wpdb            $wpdb               WordPress database abstraction object.
+ * @global array           $_wp_switched_stack
+ * @global int             $blog_id
+ * @global bool            $switched
+ * @global string          $table_prefix
+ * @global WP_Object_Cache $wp_object_cache
+ *
+ * @return bool True on success, false if we're already on the current blog.
+ */
+function restore_current_blog() {
+	global $wpdb;
+
+	if ( empty( $GLOBALS['_wp_switched_stack'] ) ) {
+		return false;
+	}
+
+	$new_blog_id  = array_pop( $GLOBALS['_wp_switched_stack'] );
+	$prev_blog_id = get_current_blog_id();
+
+	if ( $new_blog_id == $prev_blog_id ) {
+		/** This filter is documented in wp-includes/ms-blogs.php */
+		do_action( 'switch_blog', $new_blog_id, $prev_blog_id, 'restore' );
+
+		// If we still have items in the switched stack, consider ourselves still 'switched'.
+		$GLOBALS['switched'] = ! empty( $GLOBALS['_wp_switched_stack'] );
+
+		return true;
+	}
+
+	$wpdb->set_blog_id( $new_blog_id );
+	$GLOBALS['blog_id']      = $new_blog_id;
+	$GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
+
+	if ( function_exists( 'wp_cache_switch_to_blog' ) ) {
+		wp_cache_switch_to_blog( $new_blog_id );
+	} else {
+		global $wp_object_cache;
+
+		if ( is_object( $wp_object_cache ) && isset( $wp_object_cache->global_groups ) ) {
+			$global_groups = $wp_object_cache->global_groups;
+		} else {
+			$global_groups = false;
+		}
+
+		wp_cache_init();
+
+		if ( function_exists( 'wp_cache_add_global_groups' ) ) {
+			if ( is_array( $global_groups ) ) {
+				wp_cache_add_global_groups( $global_groups );
+			} else {
+				wp_cache_add_global_groups(
+					array(
+						'blog-details',
+						'blog-id-cache',
+						'blog-lookup',
+						'blog_meta',
+						'global-posts',
+						'networks',
+						'network-queries',
+						'sites',
+						'site-details',
+						'site-options',
+						'site-queries',
+						'site-transient',
+						'rss',
+						'users',
+						'user-queries',
+						'user_meta',
+						'useremail',
+						'userlogins',
+						'userslugs',
+					)
+				);
+			}
+
+			wp_cache_add_non_persistent_groups( array( 'counts', 'plugins', 'theme_json' ) );
+		}
+	}
+
+	/** This filter is documented in wp-includes/ms-blogs.php */
+	do_action( 'switch_blog', $new_blog_id, $prev_blog_id, 'restore' );
+
+	// If we still have items in the switched stack, consider ourselves still 'switched'.
+	$GLOBALS['switched'] = ! empty( $GLOBALS['_wp_switched_stack'] );
+
+	return true;
+}
+
+/**
+ * Switches the initialized roles and current user capabilities to another site.
+ *
+ * @since 4.9.0
+ *
+ * @param int $new_site_id New site ID.
+ * @param int $old_site_id Old site ID.
+ */
+function wp_switch_roles_and_user( $new_site_id, $old_site_id ) {
+	if ( $new_site_id == $old_site_id ) {
+		return;
+	}
+
+	if ( ! did_action( 'init' ) ) {
+		return;
+	}
+
+	wp_roles()->for_site( $new_site_id );
+	wp_get_current_user()->for_site( $new_site_id );
+}
+
+/**
+ * Determines if switch_to_blog() is in effect.
+ *
+ * @since 3.5.0
+ *
+ * @global array $_wp_switched_stack
+ *
+ * @return bool True if switched, false otherwise.
+ */
+function ms_is_switched() {
+	return ! empty( $GLOBALS['_wp_switched_stack'] );
+}
+
+/**
+ * Checks if a particular blog is archived.
+ *
+ * @since MU (3.0.0)
+ *
+ * @param int $id Blog ID.
+ * @return string Whether the blog is archived or not.
+ */
+function is_archived( $id ) {
+	return get_blog_status( $id, 'archived' );
+}
+
+/**
+ * Updates the 'archived' status of a particular blog.
+ *
+ * @since MU (3.0.0)
+ *
+ * @param int    $id       Blog ID.
+ * @param string $archived The new status.
+ * @return string $archived
+ */
+function update_archived( $id, $archived ) {
+	update_blog_status( $id, 'archived', $archived );
+	return $archived;
+}
+
+/**
+ * Updates a blog details field.
+ *
+ * @since MU (3.0.0)
+ * @since 5.1.0 Use wp_update_site() internally.
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param int    $blog_id    Blog ID.
+ * @param string $pref       Field name.
+ * @param string $value      Field value.
+ * @param null   $deprecated Not used.
+ * @return string|false $value
+ */
+function update_blog_status( $blog_id, $pref, $value, $deprecated = null ) {
+	global $wpdb;
+
+	if ( null !== $deprecated ) {
+		_deprecated_argument( __FUNCTION__, '3.1.0' );
+	}
+
+	$allowed_field_names = array( 'site_id', 'domain', 'path', 'registered', 'last_updated', 'public', 'archived', 'mature', 'spam', 'deleted', 'lang_id' );
+
+	if ( ! in_array( $pref, $allowed_field_names, true ) ) {
+		return $value;
+	}
+
+	$result = wp_update_site(
+		$blog_id,
+		array(
+			$pref => $value,
+		)
+	);
+
+	if ( is_wp_error( $result ) ) {
+		return false;
+	}
+
+	return $value;
+}
+
+/**
+ * Gets a blog details field.
+ *
+ * @since MU (3.0.0)
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param int    $id   Blog ID.
+ * @param string $pref Field name.
+ * @return bool|string|null $value
+ */
+function get_blog_status( $id, $pref ) {
+	global $wpdb;
+
+	$details = get_site( $id );
+	if ( $details ) {
+		return $details->$pref;
+	}
+
+	return $wpdb->get_var( $wpdb->prepare( "SELECT %s FROM {$wpdb->blogs} WHERE blog_id = %d", $pref, $id ) );
+}
+
+/**
+ * Gets a list of most recently updated blogs.
+ *
+ * @since MU (3.0.0)
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param mixed $deprecated Not used.
+ * @param int   $start      Optional. Number of blogs to offset the query. Used to build LIMIT clause.
+ *                          Can be used for pagination. Default 0.
+ * @param int   $quantity   Optional. The maximum number of blogs to retrieve. Default 40.
+ * @return array The list of blogs.
+ */
+function get_last_updated( $deprecated = '', $start = 0, $quantity = 40 ) {
+	global $wpdb;
+
+	if ( ! empty( $deprecated ) ) {
+		_deprecated_argument( __FUNCTION__, 'MU' ); // Never used.
+	}
+
+	return $wpdb->get_results( $wpdb->prepare( "SELECT blog_id, domain, path FROM $wpdb->blogs WHERE site_id = %d AND public = '1' AND archived = '0' AND mature = '0' AND spam = '0' AND deleted = '0' AND last_updated != '0000-00-00 00:00:00' ORDER BY last_updated DESC limit %d, %d", get_current_network_id(), $start, $quantity ), ARRAY_A );
+}
+
+/**
+ * Handler for updating the site's last updated date when a post is published or
+ * an already published post is changed.
+ *
+ * @since 3.3.0
+ *
+ * @param string  $new_status The new post status.
+ * @param string  $old_status The old post status.
+ * @param WP_Post $post       Post object.
+ */
+function _update_blog_date_on_post_publish( $new_status, $old_status, $post ) {
+	$post_type_obj = get_post_type_object( $post->post_type );
+	if ( ! $post_type_obj || ! $post_type_obj->public ) {
+		return;
+	}
+
+	if ( 'publish' !== $new_status && 'publish' !== $old_status ) {
+		return;
+	}
+
+	// Post was freshly published, published post was saved, or published post was unpublished.
+
+	wpmu_update_blogs_date();
+}
+
+/**
+ * Handler for updating the current site's last updated date when a published
+ * post is deleted.
+ *
+ * @since 3.4.0
+ *
+ * @param int $post_id Post ID
+ */
+function _update_blog_date_on_post_delete( $post_id ) {
+	$post = get_post( $post_id );
+
+	$post_type_obj = get_post_type_object( $post->post_type );
+	if ( ! $post_type_obj || ! $post_type_obj->public ) {
+		return;
+	}
+
+	if ( 'publish' !== $post->post_status ) {
+		return;
+	}
+
+	wpmu_update_blogs_date();
+}
+
+/**
+ * Handler for updating the current site's posts count when a post is deleted.
+ *
+ * @since 4.0.0
+ * @since 6.2.0 Added the `$post` parameter.
+ *
+ * @param int     $post_id Post ID.
+ * @param WP_Post $post    Post object.
+ */
+function _update_posts_count_on_delete( $post_id, $post ) {
+	if ( ! $post || 'publish' !== $post->post_status || 'post' !== $post->post_type ) {
+		return;
+	}
+
+	update_posts_count();
+}
+
+/**
+ * Handler for updating the current site's posts count when a post status changes.
+ *
+ * @since 4.0.0
+ * @since 4.9.0 Added the `$post` parameter.
+ *
+ * @param string  $new_status The status the post is changing to.
+ * @param string  $old_status The status the post is changing from.
+ * @param WP_Post $post       Post object
+ */
+function _update_posts_count_on_transition_post_status( $new_status, $old_status, $post = null ) {
+	if ( $new_status === $old_status ) {
+		return;
+	}
+
+	if ( 'post' !== get_post_type( $post ) ) {
+		return;
+	}
+
+	if ( 'publish' !== $new_status && 'publish' !== $old_status ) {
+		return;
+	}
+
+	update_posts_count();
+}
+
+/**
+ * Counts number of sites grouped by site status.
+ *
+ * @since 5.3.0
+ *
+ * @param int $network_id Optional. The network to get counts for. Default is the current network ID.
+ * @return int[] {
+ *     Numbers of sites grouped by site status.
+ *
+ *     @type int $all      The total number of sites.
+ *     @type int $public   The number of public sites.
+ *     @type int $archived The number of archived sites.
+ *     @type int $mature   The number of mature sites.
+ *     @type int $spam     The number of spam sites.
+ *     @type int $deleted  The number of deleted sites.
+ * }
+ */
+function wp_count_sites( $network_id = null ) {
+	if ( empty( $network_id ) ) {
+		$network_id = get_current_network_id();
+	}
+
+	$counts = array();
+	$args   = array(
+		'network_id'    => $network_id,
+		'number'        => 1,
+		'fields'        => 'ids',
+		'no_found_rows' => false,
+	);
+
+	$q             = new WP_Site_Query( $args );
+	$counts['all'] = $q->found_sites;
+
+	$_args    = $args;
+	$statuses = array( 'public', 'archived', 'mature', 'spam', 'deleted' );
+
+	foreach ( $statuses as $status ) {
+		$_args            = $args;
+		$_args[ $status ] = 1;
+
+		$q                 = new WP_Site_Query( $_args );
+		$counts[ $status ] = $q->found_sites;
+	}
+
+	return $counts;
+}