update( $wpdb->blogs, array('last_updated' => current_time('mysql', true)), array('blog_id' => $wpdb->blogid) );
refresh_blog_details( $wpdb->blogid );
do_action( 'wpmu_blog_updated', $wpdb->blogid );
}
function get_blogaddress_by_id( $blog_id ) {
$bloginfo = get_blog_details( (int) $blog_id, false ); // only get bare details!
return clean_url("http://" . $bloginfo->domain . $bloginfo->path);
}
function get_blogaddress_by_name( $blogname ) {
global $current_site;
if ( is_subdomain_install() ) {
if ( $blogname == 'main' )
$blogname = 'www';
return clean_url( "http://" . $blogname . "." . $current_site->domain . $current_site->path );
} else {
return clean_url( "http://" . $current_site->domain . $current_site->path . $blogname . '/' );
}
}
function get_blogaddress_by_domain( $domain, $path ){
if ( is_subdomain_install() ) {
$url = "http://".$domain.$path;
} else {
if ( $domain != $_SERVER['HTTP_HOST'] ) {
$blogname = substr( $domain, 0, strpos( $domain, '.' ) );
if ( $blogname != 'www.' ) {
$url = 'http://' . substr( $domain, strpos( $domain, '.' ) + 1 ) . $path . $blogname . '/';
} else { // we're installing the main blog
$url = 'http://' . substr( $domain, strpos( $domain, '.' ) + 1 ) . $path;
}
} else { // main blog
$url = 'http://' . $domain . $path;
}
}
return clean_url($url);
}
function get_sitestats() {
global $wpdb;
$stats['blogs'] = get_blog_count();
$count_ts = get_site_option( "get_user_count_ts" );
if ( time() - $count_ts > 3600 ) {
$count = $wpdb->get_var( "SELECT COUNT(ID) FROM {$wpdb->users}" );
update_site_option( "user_count", $count );
update_site_option( "user_count_ts", time() );
} else {
$count = get_site_option( "user_count" );
}
$stats['users'] = $count;
return $stats;
}
function get_admin_users_for_domain( $sitedomain = '', $path = '' ) {
global $wpdb;
if ( $sitedomain == '' )
$site_id = $wpdb->siteid;
else
$site_id = $wpdb->get_var( $wpdb->prepare("SELECT id FROM $wpdb->site WHERE domain = %s AND path = %s", $sitedomain, $path) );
if ( $site_id != false )
return $wpdb->get_results( $wpdb->prepare("SELECT u.ID, u.user_login, u.user_pass FROM $wpdb->users AS u, $wpdb->sitemeta AS sm WHERE sm.meta_key = 'admin_user_id' AND u.ID = sm.meta_value AND sm.site_id = %d", $site_id), ARRAY_A );
return false;
}
function get_user_details( $username ) {
global $wpdb;
return $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->users WHERE user_login = %s", $username) );
}
function is_main_blog() {
global $current_blog, $current_site;
if ( $current_blog->domain == $current_site->domain && $current_blog->path == $current_site->path )
return true;
return false;
}
function get_id_from_blogname( $name ) {
global $wpdb, $current_site;
$blog_id = wp_cache_get( "get_id_from_blogname_" . $name, 'blog-details' );
if ( $blog_id )
return $blog_id;
if ( is_subdomain_install() ) {
$domain = $name . '.' . $current_site->domain;
$path = $current_site->path;
} else {
$domain = $current_site->domain;
$path = $current_site->path . $name . '/';
}
$blog_id = $wpdb->get_var( $wpdb->prepare("SELECT blog_id FROM {$wpdb->blogs} WHERE domain = %s AND path = %s", $domain, $path) );
wp_cache_set( 'get_id_from_blogname_' . $name, $blog_id, 'blog-details' );
return $blog_id;
}
function get_blog_details( $id, $getall = true ) {
global $wpdb;
if ( !is_numeric( $id ) )
$id = get_id_from_blogname( $id );
$all = $getall == true ? '' : 'short';
$details = wp_cache_get( $id . $all, 'blog-details' );
if ( $details ) {
if ( $details == -1 )
return false;
elseif ( !is_object($details) ) // Clear old pre-serialized objects. Cache clients do better with that.
wp_cache_delete( $id . $all, 'blog-details' );
else
return $details;
}
$details = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->blogs WHERE blog_id = %d /* get_blog_details */", $id) );
if ( !$details ) {
wp_cache_set( $id . $all, -1, 'blog-details' );
return false;
}
if ( !$getall ) {
wp_cache_set( $id . $all, $details, 'blog-details' );
return $details;
}
$wpdb->suppress_errors();
switch_to_blog( $id );
$details->blogname = get_option( 'blogname' );
$details->siteurl = get_option( 'siteurl' );
$details->post_count = get_option( 'post_count' );
restore_current_blog();
$wpdb->suppress_errors( false );
$details = apply_filters('blog_details', $details);
wp_cache_set( $id . $all, $details, 'blog-details' );
$key = md5( $details->domain . $details->path );
wp_cache_set( $key, $details, 'blog-lookup' );
return $details;
}
function refresh_blog_details( $id ) {
$id = (int) $id;
$details = get_blog_details( $id, false );
wp_cache_delete( $id , 'blog-details' );
wp_cache_delete( $id . 'short' , 'blog-details' );
wp_cache_delete( md5( $details->domain . $details->path ) , 'blog-lookup' );
wp_cache_delete( 'current_blog_' . $details->domain, 'site-options' );
wp_cache_delete( 'current_blog_' . $details->domain . $details->path, 'site-options' );
}
function get_current_user_id() {
global $current_user;
return $current_user->ID;
}
/**
* Retrieve option value based on setting name and blog_id.
*
* If the option does not exist or does not have a value, then the return value
* will be false. This is useful to check whether you need to install an option
* and is commonly used during installation of plugin options and to test
* whether upgrading is required.
*
* There is a filter called 'blog_option_$option' with the $option being
* replaced with the option name. The filter takes two parameters. $value and
* $blog_id. It returns $value.
* The 'option_$option' filter in get_option() is not called.
*
* @since NA
* @package WordPress MU
* @subpackage Option
* @uses apply_filters() Calls 'blog_option_$optionname' with the option name value.
*
* @param int $blog_id is the id of the blog.
* @param string $setting Name of option to retrieve. Should already be SQL-escaped
* @param string $default (optional) Default value returned if option not found.
* @return mixed Value set for the option.
*/
function get_blog_option( $blog_id, $setting, $default = false ) {
global $wpdb;
$key = $blog_id."-".$setting."-blog_option";
$value = wp_cache_get( $key, "site-options" );
if ( $value == null ) {
$blog_prefix = $wpdb->get_blog_prefix( $blog_id );
$row = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$blog_prefix}options WHERE option_name = %s", $setting ) );
if ( is_object( $row ) ) { // Has to be get_row instead of get_var because of funkiness with 0, false, null values
$value = $row->option_value;
if ( $value == false )
wp_cache_set( $key, 'falsevalue', 'site-options' );
else
wp_cache_set( $key, $value, 'site-options' );
} else { // option does not exist, so we must cache its non-existence
wp_cache_set( $key, 'noop', 'site-options' );
$value = $default;
}
} elseif ( $value == 'noop' ) {
$value = $default;
} elseif ( $value == 'falsevalue' ) {
$value = false;
}
// If home is not set use siteurl.
if ( 'home' == $setting && '' == $value )
return get_blog_option( $blog_id, 'siteurl' );
if ( 'siteurl' == $setting || 'home' == $setting || 'category_base' == $setting )
$value = preg_replace( '|/+$|', '', $value );
if (! @unserialize( $value ) )
$value = stripslashes( $value );
return apply_filters( 'blog_option_' . $setting, maybe_unserialize( $value ), $blog_id );
}
function add_blog_option( $id, $key, $value ) {
$id = (int) $id;
switch_to_blog($id);
add_option( $key, $value );
restore_current_blog();
wp_cache_set( $id."-".$key."-blog_option", $value, 'site-options' );
}
function delete_blog_option( $id, $key ) {
$id = (int) $id;
switch_to_blog($id);
delete_option( $key );
restore_current_blog();
wp_cache_set( $id."-".$key."-blog_option", '', 'site-options' );
}
function update_blog_option( $id, $key, $value, $refresh = true ) {
$id = (int) $id;
switch_to_blog($id);
update_option( $key, $value );
restore_current_blog();
if ( $refresh == true )
refresh_blog_details( $id );
wp_cache_set( $id."-".$key."-blog_option", $value, 'site-options');
}
function switch_to_blog( $new_blog ) {
global $wpdb, $table_prefix, $blog_id, $switched, $switched_stack, $wp_roles, $current_user, $wp_object_cache;
if ( empty($new_blog) )
$new_blog = $blog_id;
if ( empty($switched_stack) )
$switched_stack = array();
$switched_stack[] = $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 ( $blog_id == $new_blog ) {
do_action( 'switch_blog', $blog_id, $blog_id );
$switched = true;
return true;
}
$wpdb->set_blog_id($new_blog);
$table_prefix = $wpdb->prefix;
$prev_blog_id = $blog_id;
$blog_id = $new_blog;
if ( is_object( $wp_roles ) ) {
$wpdb->suppress_errors();
if ( method_exists( $wp_roles ,'_init' ) )
$wp_roles->_init();
elseif ( method_exists( $wp_roles, '__construct' ) )
$wp_roles->__construct();
$wpdb->suppress_errors( false );
}
if ( is_object( $current_user ) )
$current_user->_init_caps();
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( 'users', 'userlogins', 'usermeta', 'site-options', 'site-lookup', 'blog-lookup', 'blog-details', 'rss', 'site-transient', 'global-posts' ) );
wp_cache_add_non_persistent_groups(array( 'comment', 'counts', 'plugins' ));
}
do_action('switch_blog', $blog_id, $prev_blog_id);
$switched = true;
return true;
}
function restore_current_blog() {
global $table_prefix, $wpdb, $blog_id, $switched, $switched_stack, $wp_roles, $current_user, $wp_object_cache;
if ( !$switched )
return false;
if ( !is_array( $switched_stack ) )
return false;
$blog = array_pop( $switched_stack );
if ( $blog_id == $blog ) {
do_action( 'switch_blog', $blog, $blog );
/* If we still have items in the switched stack, consider ourselves still 'switched' */
$switched = ( is_array( $switched_stack ) && count( $switched_stack ) > 0 );
return true;
}
$wpdb->set_blog_id($blog);
$prev_blog_id = $blog_id;
$blog_id = $blog;
$table_prefix = $wpdb->prefix;
if ( is_object( $wp_roles ) ) {
$wpdb->suppress_errors();
if ( method_exists( $wp_roles ,'_init' ) )
$wp_roles->_init();
elseif ( method_exists( $wp_roles, '__construct' ) )
$wp_roles->__construct();
$wpdb->suppress_errors( false );
}
if ( is_object( $current_user ) )
$current_user->_init_caps();
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( 'users', 'userlogins', 'usermeta', 'site-options', 'site-lookup', 'blog-lookup', 'blog-details', 'rss', 'site-transient' ) );
wp_cache_add_non_persistent_groups(array( 'comment', 'counts', 'plugins' ));
}
do_action('switch_blog', $blog_id, $prev_blog_id);
/* If we still have items in the switched stack, consider ourselves still 'switched' */
$switched = ( is_array( $switched_stack ) && count( $switched_stack ) > 0 );
return true;
}
function get_blogs_of_user( $id, $all = false ) {
global $wpdb;
$cache_suffix = $all ? '_all' : '_short';
$return = wp_cache_get( 'blogs_of_user_' . $id . $cache_suffix, 'users' );
if ( $return )
return apply_filters( 'get_blogs_of_user', $return, $id, $all );
$user = get_userdata( (int) $id );
if ( !$user )
return false;
$blogs = $match = array();
foreach ( (array) $user as $key => $value ) {
if ( false !== strpos( $key, '_capabilities') && 0 === strpos( $key, $wpdb->base_prefix ) && preg_match( '/' . $wpdb->base_prefix . '(\d+)_capabilities/', $key, $match ) ) {
$blog = get_blog_details( $match[1] );
if ( $blog && isset( $blog->domain ) && ( $all == true || $all == false && ( $blog->archived == 0 && $blog->spam == 0 && $blog->deleted == 0 ) ) ) {
$blogs[$match[1]]->userblog_id = $match[1];
$blogs[$match[1]]->blogname = $blog->blogname;
$blogs[$match[1]]->domain = $blog->domain;
$blogs[$match[1]]->path = $blog->path;
$blogs[$match[1]]->site_id = $blog->site_id;
$blogs[$match[1]]->siteurl = $blog->siteurl;
}
}
}
wp_cache_add( 'blogs_of_user_' . $id . $cache_suffix, $blogs, 'users', 5 );
return apply_filters( 'get_blogs_of_user', $blogs, $id, $all );
}
function get_active_blog_for_user( $user_id ) { // get an active blog for user - either primary blog or from blogs list
global $wpdb;
$blogs = get_blogs_of_user( $user_id );
if ( empty( $blogs ) ) {
$details = get_dashboard_blog();
add_user_to_blog( $details->blog_id, $user_id, 'subscriber' );
update_usermeta( $user_id, 'primary_blog', $details->blog_id );
wp_cache_delete( $user_id, 'users' );
return $details;
}
$primary_blog = get_usermeta( $user_id, "primary_blog" );
$details = get_dashboard_blog();
if ( $primary_blog ) {
$blogs = get_blogs_of_user( $user_id );
if ( isset( $blogs[ $primary_blog ] ) == false ) {
add_user_to_blog( $details->blog_id, $user_id, 'subscriber' );
update_usermeta( $user_id, 'primary_blog', $details->blog_id );
wp_cache_delete( $user_id, 'users' );
} else {
$details = get_blog_details( $primary_blog );
}
} else {
add_user_to_blog( $details->blog_id, $user_id, 'subscriber' ); // Add subscriber permission for dashboard blog
update_usermeta( $user_id, 'primary_blog', $details->blog_id );
}
if ( ( is_object( $details ) == false ) || ( is_object( $details ) && $details->archived == 1 || $details->spam == 1 || $details->deleted == 1 ) ) {
$blogs = get_blogs_of_user( $user_id, true ); // if a user's primary blog is shut down, check their other blogs.
$ret = false;
if ( is_array( $blogs ) && count( $blogs ) > 0 ) {
foreach ( (array) $blogs as $blog_id => $blog ) {
if ( $blog->site_id != $wpdb->siteid )
continue;
$details = get_blog_details( $blog_id );
if ( is_object( $details ) && $details->archived == 0 && $details->spam == 0 && $details->deleted == 0 ) {
$ret = $blog;
$changed = false;
if ( get_usermeta( $user_id , 'primary_blog' ) != $blog_id ) {
update_usermeta( $user_id, 'primary_blog', $blog_id );
$changed = true;
}
if ( !get_usermeta($user_id , 'source_domain') ) {
update_usermeta( $user_id, 'source_domain', $blog->domain );
$changed = true;
}
if ( $changed )
wp_cache_delete( $user_id, 'users' );
break;
}
}
} else {
// Should never get here
$dashboard_blog = get_dashboard_blog();
add_user_to_blog( $dashboard_blog->blog_id, $user_id, 'subscriber' ); // Add subscriber permission for dashboard blog
update_usermeta( $user_id, 'primary_blog', $dashboard_blog->blog_id );
return $dashboard_blog;
}
return $ret;
} else {
return $details;
}
}
function is_user_member_of_blog( $user_id, $blog_id = 0 ) {
$user_id = (int) $user_id;
$blog_id = (int) $blog_id;
if ( $blog_id == 0 ) {
global $wpdb;
$blog_id = $wpdb->blogid;
}
$blogs = get_blogs_of_user( $user_id );
if ( is_array( $blogs ) )
return array_key_exists( $blog_id, $blogs );
else
return false;
}
function is_archived( $id ) {
return get_blog_status($id, 'archived');
}
function update_archived( $id, $archived ) {
update_blog_status($id, 'archived', $archived);
return $archived;
}
function update_blog_status( $id, $pref, $value, $refresh = 1 ) {
global $wpdb;
if ( !in_array( $pref, array( 'site_id', 'domain', 'path', 'registered', 'last_updated', 'public', 'archived', 'mature', 'spam', 'deleted', 'lang_id') ) )
return $value;
$wpdb->update( $wpdb->blogs, array($pref => $value, 'last_updated' => current_time('mysql', true)), array('blog_id' => $id) );
if ( $refresh == 1 )
refresh_blog_details($id);
if ( $pref == 'spam' ) {
if ( $value == 1 )
do_action( "make_spam_blog", $id );
else
do_action( "make_ham_blog", $id );
}
return $value;
}
function get_blog_status( $id, $pref ) {
global $wpdb;
$details = get_blog_details( $id, false );
if ( $details )
return $details->$pref;
return $wpdb->get_var( $wpdb->prepare("SELECT $pref FROM {$wpdb->blogs} WHERE blog_id = %d", $id) );
}
function get_last_updated( $deprecated = '', $start = 0, $quantity = 40 ) {
global $wpdb;
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", $wpdb->siteid, $start, $quantity ) , ARRAY_A );
}
function get_most_active_blogs( $num = 10, $display = true ) {
$most_active = get_site_option( "most_active" );
$update = false;
if ( is_array( $most_active ) ) {
if ( ( $most_active['time'] + 60 ) < time() ) { // cache for 60 seconds.
$update = true;
}
} else {
$update = true;
}
if ( $update == true ) {
unset( $most_active );
$blogs = get_blog_list( 0, 'all', false ); // $blog_id -> $details
if ( is_array( $blogs ) ) {
reset( $blogs );
foreach ( (array) $blogs as $key => $details ) {
$most_active[ $details['blog_id'] ] = $details['postcount'];
$blog_list[ $details['blog_id'] ] = $details; // array_slice() removes keys!!
}
arsort( $most_active );
reset( $most_active );
foreach ( (array) $most_active as $key => $details )
$t[ $key ] = $blog_list[ $key ];
unset( $most_active );
$most_active = $t;
}
update_site_option( "most_active", $most_active );
}
if ( $display == true ) {
if ( is_array( $most_active ) ) {
reset( $most_active );
foreach ( (array) $most_active as $key => $details ) {
$url = clean_url("http://" . $details['domain'] . $details['path']);
echo "" . $details['postcount'] . " $url";
}
}
}
return array_slice( $most_active, 0, $num );
}
function get_blog_list( $start = 0, $num = 10, $deprecated = '' ) {
global $wpdb;
$blogs = get_site_option( "blog_list" );
$update = false;
if ( is_array( $blogs ) ) {
if ( ( $blogs['time'] + 60 ) < time() ) { // cache for 60 seconds.
$update = true;
}
} else {
$update = true;
}
if ( $update == true ) {
unset( $blogs );
$blogs = $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' ORDER BY registered DESC", $wpdb->siteid), ARRAY_A );
foreach ( (array) $blogs as $details ) {
$blog_list[ $details['blog_id'] ] = $details;
$blog_list[ $details['blog_id'] ]['postcount'] = $wpdb->get_var( "SELECT COUNT(ID) FROM " . $wpdb->base_prefix . $details['blog_id'] . "_posts WHERE post_status='publish' AND post_type='post'" );
}
unset( $blogs );
$blogs = $blog_list;
update_site_option( "blog_list", $blogs );
}
if ( false == is_array( $blogs ) )
return array();
if ( $num == 'all' )
return array_slice( $blogs, $start, count( $blogs ) );
else
return array_slice( $blogs, $start, $num );
}
function get_user_count() {
global $wpdb;
$count_ts = get_site_option( "user_count_ts" );
if ( time() - $count_ts > 3600 ) {
$count = $wpdb->get_var( $wpdb->prepare("SELECT COUNT(ID) as c FROM $wpdb->users WHERE spam = '0' AND deleted = '0'") );
update_site_option( "user_count", $count );
update_site_option( "user_count_ts", time() );
}
$count = get_site_option( "user_count" );
return $count;
}
function get_blog_count( $id = 0 ) {
global $wpdb;
if ( $id == 0 )
$id = $wpdb->siteid;
$count_ts = get_site_option( "blog_count_ts" );
if ( time() - $count_ts > 3600 ) {
$count = $wpdb->get_var( $wpdb->prepare("SELECT COUNT(blog_id) as c FROM $wpdb->blogs WHERE site_id = %d AND spam = '0' AND deleted = '0' and archived = '0'", $id) );
update_site_option( "blog_count", $count );
update_site_option( "blog_count_ts", time() );
}
$count = get_site_option( "blog_count" );
return $count;
}
function get_blog_post( $blog_id, $post_id ) {
global $wpdb;
$key = $blog_id . "-" . $post_id;
$post = wp_cache_get( $key, "global-posts" );
if ( $post == false ) {
$post = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM " . $wpdb->get_blog_prefix( $blog_id ) . "posts WHERE ID = %d", $post_id ) );
wp_cache_add( $key, $post, "global-posts" );
}
return $post;
}
// deprecated, see clean_post_cache()
function clear_global_post_cache( $post_id ) {
return;
}
function add_user_to_blog( $blog_id, $user_id, $role ) {
switch_to_blog($blog_id);
$user = new WP_User($user_id);
if ( empty($user) )
return new WP_Error('user_does_not_exist', __('That user does not exist.'));
if ( !get_usermeta($user_id, 'primary_blog') ) {
update_usermeta($user_id, 'primary_blog', $blog_id);
$details = get_blog_details($blog_id);
update_usermeta($user_id, 'source_domain', $details->domain);
}
$user->set_role($role);
do_action('add_user_to_blog', $user_id, $role, $blog_id);
wp_cache_delete( $user_id, 'users' );
restore_current_blog();
return true;
}
function remove_user_from_blog($user_id, $blog_id = '', $reassign = '') {
global $wpdb;
switch_to_blog($blog_id);
$user_id = (int) $user_id;
do_action('remove_user_from_blog', $user_id, $blog_id);
// If being removed from the primary blog, set a new primary if the user is assigned
// to multiple blogs.
$primary_blog = get_usermeta($user_id, 'primary_blog');
if ( $primary_blog == $blog_id ) {
$new_id = '';
$new_domain = '';
$blogs = get_blogs_of_user($user_id);
foreach ( (array) $blogs as $blog ) {
if ( $blog->userblog_id == $blog_id )
continue;
$new_id = $blog->userblog_id;
$new_domain = $blog->domain;
break;
}
update_usermeta($user_id, 'primary_blog', $new_id);
update_usermeta($user_id, 'source_domain', $new_domain);
}
// wp_revoke_user($user_id);
$user = new WP_User($user_id);
$user->remove_all_caps();
$blogs = get_blogs_of_user($user_id);
if ( count($blogs) == 0 ) {
update_usermeta($user_id, 'primary_blog', '');
update_usermeta($user_id, 'source_domain', '');
}
if ( $reassign != '' ) {
$reassign = (int) $reassign;
$wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET post_author = %d WHERE post_author = %d", $reassign, $user_id) );
$wpdb->query( $wpdb->prepare("UPDATE $wpdb->links SET link_owner = %d WHERE link_owner = %d", $reassign, $user_id) );
}
restore_current_blog();
}
function create_empty_blog( $domain, $path, $weblog_title, $site_id = 1 ) {
$domain = addslashes( $domain );
$weblog_title = addslashes( $weblog_title );
if ( empty($path) )
$path = '/';
// Check if the domain has been used already. We should return an error message.
if ( domain_exists($domain, $path, $site_id) )
return __('error: Blog URL already taken.');
// Need to backup wpdb table names, and create a new wp_blogs entry for new blog.
// Need to get blog_id from wp_blogs, and create new table names.
// Must restore table names at the end of function.
if ( ! $blog_id = insert_blog($domain, $path, $site_id) )
return __('error: problem creating blog entry');
switch_to_blog($blog_id);
install_blog($blog_id);
restore_current_blog();
return $blog_id;
}
function get_blog_permalink( $_blog_id, $post_id ) {
$key = "{$_blog_id}-{$post_id}-blog_permalink";
$link = wp_cache_get( $key, 'site-options' );
if ( $link == false ) {
switch_to_blog( $_blog_id );
$link = get_permalink( $post_id );
restore_current_blog();
wp_cache_add( $key, $link, 'site-options', 360 );
}
return $link;
}
function get_blog_id_from_url( $domain, $path = '/' ) {
global $wpdb;
$domain = strtolower( $wpdb->escape( $domain ) );
$path = strtolower( $wpdb->escape( $path ) );
$id = wp_cache_get( md5( $domain . $path ), 'blog-id-cache' );
if ( $id == -1 ) { // blog does not exist
return 0;
} elseif ( $id ) {
return (int)$id;
}
$id = $wpdb->get_var( "SELECT blog_id FROM $wpdb->blogs WHERE domain = '$domain' and path = '$path' /* get_blog_id_from_url */" );
if ( !$id ) {
wp_cache_set( md5( $domain . $path ), -1, 'blog-id-cache' );
return false;
}
wp_cache_set( md5( $domain . $path ), $id, 'blog-id-cache' );
return $id;
}
// wpmu admin functions
function wpmu_admin_do_redirect( $url = '' ) {
$ref = '';
if ( isset( $_GET['ref'] ) )
$ref = $_GET['ref'];
if ( isset( $_POST['ref'] ) )
$ref = $_POST['ref'];
if ( $ref ) {
$ref = wpmu_admin_redirect_add_updated_param( $ref );
wp_redirect( $ref );
exit();
}
if ( empty( $_SERVER['HTTP_REFERER'] ) == false ) {
wp_redirect( $_SERVER['HTTP_REFERER'] );
exit();
}
$url = wpmu_admin_redirect_add_updated_param( $url );
if ( isset( $_GET['redirect'] ) ) {
if ( substr( $_GET['redirect'], 0, 2 ) == 's_' )
$url .= "&action=blogs&s=". wp_specialchars( substr( $_GET['redirect'], 2 ) );
} elseif ( isset( $_POST['redirect'] ) ) {
$url = wpmu_admin_redirect_add_updated_param( $_POST['redirect'] );
}
wp_redirect( $url );
exit();
}
function wpmu_admin_redirect_add_updated_param( $url = '' ) {
if ( strpos( $url, 'updated=true' ) === false ) {
if ( strpos( $url, '?' ) === false )
return $url . '?updated=true';
else
return $url . '&updated=true';
}
return $url;
}
function is_blog_user( $blog_id = 0 ) {
global $current_user, $wpdb;
if ( !$blog_id )
$blog_id = $wpdb->blogid;
$cap_key = $wpdb->base_prefix . $blog_id . '_capabilities';
if ( is_array($current_user->$cap_key) && in_array(1, $current_user->$cap_key) )
return true;
return false;
}
function validate_email( $email, $check_domain = true) {
if (ereg('^[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+'.'@'.
'[-!#$%&\'*+\\/0-9=?A-Z^_`a-z{|}~]+\.'.
'[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+$', $email))
{
if ($check_domain && function_exists('checkdnsrr')) {
list (, $domain) = explode('@', $email);
if (checkdnsrr($domain.'.', 'MX') || checkdnsrr($domain.'.', 'A'))
return true;
return false;
}
return true;
}
return false;
}
function is_email_address_unsafe( $user_email ) {
$banned_names = get_site_option( "banned_email_domains" );
if ($banned_names && !is_array( $banned_names ))
$banned_names = explode( "\n", $banned_names);
if ( is_array( $banned_names ) && empty( $banned_names ) == false ) {
$email_domain = strtolower( substr( $user_email, 1 + strpos( $user_email, '@' ) ) );
foreach ( (array) $banned_names as $banned_domain ) {
if ( $banned_domain == '' )
continue;
if (
strstr( $email_domain, $banned_domain ) ||
(
strstr( $banned_domain, '/' ) &&
preg_match( $banned_domain, $email_domain )
)
)
return true;
}
}
return false;
}
function wpmu_validate_user_signup($user_name, $user_email) {
global $wpdb;
$errors = new WP_Error();
$user_name = preg_replace( "/\s+/", '', sanitize_user( $user_name, true ) );
$user_email = sanitize_email( $user_email );
if ( empty( $user_name ) )
$errors->add('user_name', __("Please enter a username"));
$maybe = array();
preg_match( "/[a-z0-9]+/", $user_name, $maybe );
if ( $user_name != $maybe[0] )
$errors->add('user_name', __("Only lowercase letters and numbers allowed"));
$illegal_names = get_site_option( "illegal_names" );
if ( is_array( $illegal_names ) == false ) {
$illegal_names = array( "www", "web", "root", "admin", "main", "invite", "administrator" );
add_site_option( "illegal_names", $illegal_names );
}
if ( in_array( $user_name, $illegal_names ) == true )
$errors->add('user_name', __("That username is not allowed"));
if ( is_email_address_unsafe( $user_email ) )
$errors->add('user_email', __("You cannot use that email address to signup. We are having problems with them blocking some of our email. Please use another email provider."));
if ( strlen( $user_name ) < 4 )
$errors->add('user_name', __("Username must be at least 4 characters"));
if ( strpos( " " . $user_name, "_" ) != false )
$errors->add('user_name', __("Sorry, usernames may not contain the character '_'!"));
// all numeric?
$match = array();
preg_match( '/[0-9]*/', $user_name, $match );
if ( $match[0] == $user_name )
$errors->add('user_name', __("Sorry, usernames must have letters too!"));
if ( !is_email( $user_email ) )
$errors->add('user_email', __("Please enter a correct email address"));
if ( !validate_email( $user_email ) )
$errors->add('user_email', __("Please check your email address."));
$limited_email_domains = get_site_option( 'limited_email_domains' );
if ( is_array( $limited_email_domains ) && empty( $limited_email_domains ) == false ) {
$emaildomain = substr( $user_email, 1 + strpos( $user_email, '@' ) );
if ( in_array( $emaildomain, $limited_email_domains ) == false )
$errors->add('user_email', __("Sorry, that email address is not allowed!"));
}
// Check if the username has been used already.
if ( username_exists($user_name) )
$errors->add('user_name', __("Sorry, that username already exists!"));
// Check if the email address has been used already.
if ( email_exists($user_email) )
$errors->add('user_email', __("Sorry, that email address is already used!"));
// Has someone already signed up for this username?
$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE user_login = %s", $user_name) );
if ( $signup != null ) {
$registered_at = mysql2date('U', $signup->registered);
$now = current_time( 'timestamp', true );
$diff = $now - $registered_at;
// If registered more than two days ago, cancel registration and let this signup go through.
if ( $diff > 172800 )
$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->signups WHERE user_login = %s", $user_name) );
else
$errors->add('user_name', __("That username is currently reserved but may be available in a couple of days."));
if ( $signup->active == 0 && $signup->user_email == $user_email )
$errors->add('user_email_used', __("username and email used"));
}
$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE user_email = %s", $user_email) );
if ( $signup != null ) {
$diff = current_time( 'timestamp', true ) - mysql2date('U', $signup->registered);
// If registered more than two days ago, cancel registration and let this signup go through.
if ( $diff > 172800 )
$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->signups WHERE user_email = %s", $user_email) );
else
$errors->add('user_email', __("That email address has already been used. Please check your inbox for an activation email. It will become available in a couple of days if you do nothing."));
}
$result = array('user_name' => $user_name, 'user_email' => $user_email, 'errors' => $errors);
return apply_filters('wpmu_validate_user_signup', $result);
}
function wpmu_validate_blog_signup($blogname, $blog_title, $user = '') {
global $wpdb, $domain, $base, $current_site;
$blogname = preg_replace( "/\s+/", '', sanitize_user( $blogname, true ) );
$blog_title = strip_tags( $blog_title );
$blog_title = substr( $blog_title, 0, 50 );
$errors = new WP_Error();
$illegal_names = get_site_option( "illegal_names" );
if ( $illegal_names == false ) {
$illegal_names = array( "www", "web", "root", "admin", "main", "invite", "administrator" );
add_site_option( "illegal_names", $illegal_names );
}
if ( empty( $blogname ) )
$errors->add('blogname', __("Please enter a blog name"));
$maybe = array();
preg_match( "/[a-z0-9]+/", $blogname, $maybe );
if ( $blogname != $maybe[0] )
$errors->add('blogname', __("Only lowercase letters and numbers allowed"));
if ( in_array( $blogname, $illegal_names ) == true )
$errors->add('blogname', __("That name is not allowed"));
if ( strlen( $blogname ) < 4 && !is_super_admin() )
$errors->add('blogname', __("Blog name must be at least 4 characters"));
if ( strpos( " " . $blogname, "_" ) != false )
$errors->add('blogname', __("Sorry, blog names may not contain the character '_'!"));
// do not allow users to create a blog that conflicts with a page on the main blog.
if ( !is_subdomain_install() && $wpdb->get_var( $wpdb->prepare( "SELECT post_name FROM " . $wpdb->get_blog_prefix( $current_site->blog_id ) . "posts WHERE post_type = 'page' AND post_name = %s", $blogname ) ) )
$errors->add( 'blogname', __( "Sorry, you may not use that blog name" ) );
// all numeric?
$match = array();
preg_match( '/[0-9]*/', $blogname, $match );
if ( $match[0] == $blogname )
$errors->add('blogname', __("Sorry, blog names must have letters too!"));
$blogname = apply_filters( "newblogname", $blogname );
$blog_title = stripslashes( $blog_title );
if ( empty( $blog_title ) )
$errors->add('blog_title', __("Please enter a blog title"));
// Check if the domain/path has been used already.
if ( is_subdomain_install() ) {
$mydomain = "$blogname.$domain";
$path = $base;
} else {
$mydomain = "$domain";
$path = $base.$blogname.'/';
}
if ( domain_exists($mydomain, $path) )
$errors->add('blogname', __("Sorry, that blog already exists!"));
if ( username_exists( $blogname ) ) {
if ( is_object( $user ) == false || ( is_object($user) && ( $user->user_login != $blogname ) ) )
$errors->add( 'blogname', __( "Sorry, that blog is reserved!" ) );
}
// Has someone already signed up for this domain?
$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE domain = %s AND path = %s", $mydomain, $path) ); // TODO: Check email too?
if ( ! empty($signup) ) {
$diff = current_time( 'timestamp', true ) - mysql2date('U', $signup->registered);
// If registered more than two days ago, cancel registration and let this signup go through.
if ( $diff > 172800 )
$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->signups WHERE domain = %s AND path = %s", $mydomain, $path) );
else
$errors->add('blogname', __("That blog is currently reserved but may be available in a couple days."));
}
$result = array('domain' => $mydomain, 'path' => $path, 'blogname' => $blogname, 'blog_title' => $blog_title, 'errors' => $errors);
return apply_filters('wpmu_validate_blog_signup', $result);
}
// Record signup information for future activation. wpmu_validate_signup() should be run
// on the inputs before calling wpmu_signup().
function wpmu_signup_blog($domain, $path, $title, $user, $user_email, $meta = '') {
global $wpdb;
$key = substr( md5( time() . rand() . $domain ), 0, 16 );
$meta = serialize($meta);
$domain = $wpdb->escape($domain);
$path = $wpdb->escape($path);
$title = $wpdb->escape($title);
$wpdb->insert( $wpdb->signups, array(
'domain' => $domain,
'path' => $path,
'title' => $title,
'user_login' => $user,
'user_email' => $user_email,
'registered' => current_time('mysql', true),
'activation_key' => $key,
'meta' => $meta
) );
wpmu_signup_blog_notification($domain, $path, $title, $user, $user_email, $key, $meta);
}
function wpmu_signup_user($user, $user_email, $meta = '') {
global $wpdb;
// Format data
$user = preg_replace( "/\s+/", '', sanitize_user( $user, true ) );
$user_email = sanitize_email( $user_email );
$key = substr( md5( time() . rand() . $user_email ), 0, 16 );
$meta = serialize($meta);
$wpdb->insert( $wpdb->signups, array(
'domain' => '',
'path' => '',
'title' => '',
'user_login' => $user,
'user_email' => $user_email,
'registered' => current_time('mysql', true),
'activation_key' => $key,
'meta' => $meta
) );
wpmu_signup_user_notification($user, $user_email, $key, $meta);
}
// Notify user of signup success.
function wpmu_signup_blog_notification($domain, $path, $title, $user, $user_email, $key, $meta = '') {
global $current_site;
if ( !apply_filters('wpmu_signup_blog_notification', $domain, $path, $title, $user, $user_email, $key, $meta) )
return false;
// Send email with activation link.
if ( !is_subdomain_install() || $current_site->id != 1 )
$activate_url = "http://" . $current_site->domain . $current_site->path . "wp-activate.php?key=$key";
else
$activate_url = "http://{$domain}{$path}wp-activate.php?key=$key";
$activate_url = clean_url($activate_url);
$admin_email = get_site_option( "admin_email" );
if ( $admin_email == '' )
$admin_email = 'support@' . $_SERVER['SERVER_NAME'];
$from_name = get_site_option( "site_name" ) == '' ? 'WordPress' : wp_specialchars( get_site_option( "site_name" ) );
$message_headers = "MIME-Version: 1.0\n" . "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
$message = sprintf( apply_filters( 'wpmu_signup_blog_notification_email', __( "To activate your blog, please click the following link:\n\n%s\n\nAfter you activate, you will receive *another email* with your login.\n\nAfter you activate, you can visit your blog here:\n\n%s" ) ), $activate_url, clean_url( "http://{$domain}{$path}" ), $key );
// TODO: Don't hard code activation link.
$subject = sprintf( apply_filters( 'wpmu_signup_blog_notification_subject', __( '[%1s] Activate %2s' ) ), $from_name, clean_url( 'http://' . $domain . $path ) );
wp_mail($user_email, $subject, $message, $message_headers);
return true;
}
function wpmu_signup_user_notification($user, $user_email, $key, $meta = '') {
global $current_site;
if ( !apply_filters('wpmu_signup_user_notification', $user, $user_email, $key, $meta) )
return false;
// Send email with activation link.
$admin_email = get_site_option( "admin_email" );
if ( $admin_email == '' )
$admin_email = 'support@' . $_SERVER['SERVER_NAME'];
$from_name = get_site_option( "site_name" ) == '' ? 'WordPress' : wp_specialchars( get_site_option( "site_name" ) );
$message_headers = "MIME-Version: 1.0\n" . "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
$message = sprintf( apply_filters( 'wpmu_signup_user_notification_email', __( "To activate your user, please click the following link:\n\n%s\n\nAfter you activate, you will receive *another email* with your login.\n\n" ) ), site_url( "wp-activate.php?key=$key" ), $key );
// TODO: Don't hard code activation link.
$subject = sprintf( __( apply_filters( 'wpmu_signup_user_notification_subject', '[%1s] Activate %2s' ) ), $from_name, $user);
wp_mail($user_email, $subject, $message, $message_headers);
return true;
}
function wpmu_activate_signup($key) {
global $wpdb, $current_site;
$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE activation_key = %s", $key) );
if ( empty($signup) )
return new WP_Error('invalid_key', __('Invalid activation key.'));
if ( $signup->active )
return new WP_Error('already_active', __('The blog is already active.'), $signup);
$meta = unserialize($signup->meta);
$user_login = $wpdb->escape($signup->user_login);
$user_email = $wpdb->escape($signup->user_email);
wpmu_validate_user_signup($user_login, $user_email);
$password = wp_generate_password();
$user_id = username_exists($user_login);
if ( ! $user_id )
$user_id = wpmu_create_user($user_login, $password, $user_email);
else
$user_already_exists = true;
if ( ! $user_id )
return new WP_Error('create_user', __('Could not create user'), $signup);
$now = current_time('mysql', true);
if ( empty($signup->domain) ) {
$wpdb->update( $wpdb->signups, array('active' => 1, 'activated' => $now), array('activation_key' => $key) );
if ( isset( $user_already_exists ) )
return new WP_Error( 'user_already_exists', __( 'That username is already activated.' ), $signup);
wpmu_welcome_user_notification($user_id, $password, $meta);
$user_site = get_site_option( 'dashboard_blog', $current_site->blog_id );
if ( $user_site == false )
add_user_to_blog( '1', $user_id, get_site_option( 'default_user_role', 'subscriber' ) );
else
add_user_to_blog( $user_site, $user_id, get_site_option( 'default_user_role', 'subscriber' ) );
add_new_user_to_blog( $user_id, $user_email, $meta );
do_action('wpmu_activate_user', $user_id, $password, $meta);
return array('user_id' => $user_id, 'password' => $password, 'meta' => $meta);
}
wpmu_validate_blog_signup($signup->domain, $signup->title);
$blog_id = wpmu_create_blog( $signup->domain, $signup->path, $signup->title, $user_id, $meta, $wpdb->siteid );
// TODO: What to do if we create a user but cannot create a blog?
if ( is_wp_error($blog_id) ) {
// If blog is taken, that means a previous attempt to activate this blog failed in between creating the blog and
// setting the activation flag. Let's just set the active flag and instruct the user to reset their password.
if ( 'blog_taken' == $blog_id->get_error_code() ) {
$blog_id->add_data( $signup );
$wpdb->update( $wpdb->signups, array( 'active' => 1, 'activated' => $now ), array( 'activation_key' => $key ) );
}
return $blog_id;
}
$wpdb->update( $wpdb->signups, array('active' => 1, 'activated' => $now), array('activation_key' => $key) );
wpmu_welcome_notification($blog_id, $user_id, $password, $signup->title, $meta);
do_action('wpmu_activate_blog', $blog_id, $user_id, $password, $signup->title, $meta);
return array('blog_id' => $blog_id, 'user_id' => $user_id, 'password' => $password, 'title' => $signup->title, 'meta' => $meta);
}
function wpmu_create_user( $user_name, $password, $email) {
$user_name = preg_replace( "/\s+/", '', sanitize_user( $user_name, true ) );
if ( username_exists($user_name) )
return false;
// Check if the email address has been used already.
if ( email_exists($email) )
return false;
$user_id = wp_create_user( $user_name, $password, $email );
$user = new WP_User($user_id);
// Newly created users have no roles or caps until they are added to a blog.
update_user_option($user_id, 'capabilities', '');
update_user_option($user_id, 'user_level', '');
do_action( 'wpmu_new_user', $user_id );
return $user_id;
}
function wpmu_create_blog($domain, $path, $title, $user_id, $meta = '', $site_id = 1) {
$domain = preg_replace( "/\s+/", '', sanitize_user( $domain, true ) );
if ( is_subdomain_install() )
$domain = str_replace( '@', '', $domain );
$title = strip_tags( $title );
$user_id = (int) $user_id;
if ( empty($path) )
$path = '/';
// Check if the domain has been used already. We should return an error message.
if ( domain_exists($domain, $path, $site_id) )
return new WP_Error('blog_taken', __('Blog already exists.'));
if ( !defined("WP_INSTALLING") )
define( "WP_INSTALLING", true );
if ( ! $blog_id = insert_blog($domain, $path, $site_id) )
return new WP_Error('insert_blog', __('Could not create blog.'));
switch_to_blog($blog_id);
install_blog($blog_id, $title);
wp_install_defaults($user_id);
add_user_to_blog($blog_id, $user_id, 'administrator');
if ( is_array($meta) ) foreach ($meta as $key => $value) {
if ( $key == 'public' || $key == 'archived' || $key == 'mature' || $key == 'spam' || $key == 'deleted' || $key == 'lang_id' )
update_blog_status( $blog_id, $key, $value );
else
update_option( $key, $value );
}
add_option( 'WPLANG', get_site_option( 'WPLANG' ) );
update_option( 'blog_public', $meta['public'] );
if ( !is_super_admin() && get_usermeta( $user_id, 'primary_blog' ) == get_site_option( 'dashboard_blog', 1 ) )
update_usermeta( $user_id, 'primary_blog', $blog_id );
restore_current_blog();
do_action( 'wpmu_new_blog', $blog_id, $user_id );
return $blog_id;
}
function newblog_notify_siteadmin( $blog_id, $deprecated = '' ) {
global $current_site;
if ( get_site_option( 'registrationnotification' ) != 'yes' )
return false;
$email = get_site_option( 'admin_email' );
if ( is_email($email) == false )
return false;
$options_site_url = clean_url("http://{$current_site->domain}{$current_site->path}wp-admin/ms-options.php");
switch_to_blog( $blog_id );
$blogname = get_option( 'blogname' );
$siteurl = get_option( 'siteurl' );
restore_current_blog();
$msg = sprintf( __( "New Blog: %1s
URL: %2s
Remote IP: %3s
Disable these notifications: %4s"), $blogname, $siteurl, $_SERVER['REMOTE_ADDR'], $options_site_url);
$msg = apply_filters( 'newblog_notify_siteadmin', $msg );
wp_mail( $email, sprintf( __( "New Blog Registration: %s" ), $siteurl ), $msg );
return true;
}
function newuser_notify_siteadmin( $user_id ) {
global $current_site;
if ( get_site_option( 'registrationnotification' ) != 'yes' )
return false;
$email = get_site_option( 'admin_email' );
if ( is_email($email) == false )
return false;
$user = new WP_User($user_id);
$options_site_url = clean_url("http://{$current_site->domain}{$current_site->path}wp-admin/ms-options.php");
$msg = sprintf(__("New User: %1s
Remote IP: %2s
Disable these notifications: %3s"), $user->user_login, $_SERVER['REMOTE_ADDR'], $options_site_url);
$msg = apply_filters( 'newuser_notify_siteadmin', $msg );
wp_mail( $email, sprintf(__("New User Registration: %s"), $user->user_login), $msg );
return true;
}
function domain_exists($domain, $path, $site_id = 1) {
global $wpdb;
return $wpdb->get_var( $wpdb->prepare("SELECT blog_id FROM $wpdb->blogs WHERE domain = %s AND path = %s AND site_id = %d", $domain, $path, $site_id) );
}
function insert_blog($domain, $path, $site_id) {
global $wpdb;
$path = trailingslashit($path);
$site_id = (int) $site_id;
$result = $wpdb->insert( $wpdb->blogs, array('site_id' => $site_id, 'domain' => $domain, 'path' => $path, 'registered' => current_time('mysql')) );
if ( ! $result )
return false;
refresh_blog_details($wpdb->insert_id);
return $wpdb->insert_id;
}
// Install an empty blog. wpdb should already be switched.
function install_blog($blog_id, $blog_title = '') {
global $wpdb, $table_prefix, $wp_roles;
$wpdb->suppress_errors();
// Cast for security
$blog_id = (int) $blog_id;
require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
if ( $wpdb->get_results("SELECT ID FROM $wpdb->posts") )
die(__('Already Installed
You appear to have already installed WordPress. To reinstall please clear your old database tables first.
') . '