Wordpress/wp-admin/includes/user.php

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<?php
// Creates a new user from the "Users" form using $_POST information.
function add_user() {
if ( func_num_args() ) { // The hackiest hack that ever did hack
global $current_user, $wp_roles;
$user_id = (int) func_get_arg( 0 );
if ( isset( $_POST['role'] ) ) {
if( $user_id != $current_user->id || $wp_roles->role_objects[$_POST['role']]->has_cap( 'edit_users' ) ) {
$user = new WP_User( $user_id );
$user->set_role( $_POST['role'] );
}
}
} else {
add_action( 'user_register', 'add_user' ); // See above
return edit_user();
}
}
function edit_user( $user_id = 0 ) {
global $current_user, $wp_roles, $wpdb;
if ( $user_id != 0 ) {
$update = true;
$user->ID = (int) $user_id;
$userdata = get_userdata( $user_id );
$user->user_login = $wpdb->escape( $userdata->user_login );
} else {
$update = false;
$user = '';
}
if ( isset( $_POST['user_login'] ))
$user->user_login = wp_specialchars( trim( $_POST['user_login'] ));
$pass1 = $pass2 = '';
if ( isset( $_POST['pass1'] ))
$pass1 = $_POST['pass1'];
if ( isset( $_POST['pass2'] ))
$pass2 = $_POST['pass2'];
if ( isset( $_POST['role'] ) && current_user_can( 'edit_users' ) ) {
if( $user_id != $current_user->id || $wp_roles->role_objects[$_POST['role']]->has_cap( 'edit_users' ))
$user->role = $_POST['role'];
}
if ( isset( $_POST['email'] ))
$user->user_email = wp_specialchars( trim( $_POST['email'] ));
if ( isset( $_POST['url'] ) ) {
$user->user_url = clean_url( trim( $_POST['url'] ));
$user->user_url = preg_match('/^(https?|ftps?|mailto|news|irc|gopher|nntp|feed|telnet):/is', $user->user_url) ? $user->user_url : 'http://'.$user->user_url;
}
if ( isset( $_POST['first_name'] ))
$user->first_name = wp_specialchars( trim( $_POST['first_name'] ));
if ( isset( $_POST['last_name'] ))
$user->last_name = wp_specialchars( trim( $_POST['last_name'] ));
if ( isset( $_POST['nickname'] ))
$user->nickname = wp_specialchars( trim( $_POST['nickname'] ));
if ( isset( $_POST['display_name'] ))
$user->display_name = wp_specialchars( trim( $_POST['display_name'] ));
if ( isset( $_POST['description'] ))
$user->description = trim( $_POST['description'] );
if ( isset( $_POST['jabber'] ))
$user->jabber = wp_specialchars( trim( $_POST['jabber'] ));
if ( isset( $_POST['aim'] ))
$user->aim = wp_specialchars( trim( $_POST['aim'] ));
if ( isset( $_POST['yim'] ))
$user->yim = wp_specialchars( trim( $_POST['yim'] ));
if ( !$update )
$user->rich_editing = 'true'; // Default to true for new users.
else if ( isset( $_POST['rich_editing'] ) )
$user->rich_editing = $_POST['rich_editing'];
else
$user->rich_editing = 'false';
$errors = new WP_Error();
/* checking that username has been typed */
if ( $user->user_login == '' )
$errors->add( 'user_login', __( '<strong>ERROR</strong>: Please enter a username.' ));
/* checking the password has been typed twice */
do_action_ref_array( 'check_passwords', array ( $user->user_login, & $pass1, & $pass2 ));
if (!$update ) {
if ( $pass1 == '' || $pass2 == '' )
$errors->add( 'pass', __( '<strong>ERROR</strong>: Please enter your password twice.' ));
} else {
if ((empty ( $pass1 ) && !empty ( $pass2 ) ) || (empty ( $pass2 ) && !empty ( $pass1 ) ) )
$errors->add( 'pass', __( '<strong>ERROR</strong>: You entered your new password only once.' ));
}
/* Check for "\" in password */
if( strpos( " ".$pass1, "\\" ) )
$errors->add( 'pass', __( '<strong>ERROR</strong>: Passwords may not contain the character "\\".' ));
/* checking the password has been typed twice the same */
if ( $pass1 != $pass2 )
$errors->add( 'pass', __( '<strong>ERROR</strong>: Please enter the same password in the two password fields.' ));
if (!empty ( $pass1 ))
$user->user_pass = $pass1;
if ( !$update && !validate_username( $user->user_login ) )
$errors->add( 'user_login', __( '<strong>ERROR</strong>: This username is invalid. Please enter a valid username.' ));
if (!$update && username_exists( $user->user_login ))
$errors->add( 'user_login', __( '<strong>ERROR</strong>: This username is already registered. Please choose another one.' ));
/* checking e-mail address */
if ( empty ( $user->user_email ) ) {
$errors->add( 'user_email', __( '<strong>ERROR</strong>: Please enter an e-mail address.' ));
} else
if (!is_email( $user->user_email ) ) {
$errors->add( 'user_email', __( "<strong>ERROR</strong>: The e-mail address isn't correct." ));
}
if ( $errors->get_error_codes() )
return $errors;
if ( $update ) {
$user_id = wp_update_user( get_object_vars( $user ));
} else {
$user_id = wp_insert_user( get_object_vars( $user ));
wp_new_user_notification( $user_id );
}
return $user_id;
}
function get_author_user_ids() {
global $wpdb;
$level_key = $wpdb->prefix . 'user_level';
$query = "SELECT user_id FROM $wpdb->usermeta WHERE meta_key = '$level_key' AND meta_value != '0'";
return $wpdb->get_col( $query );
}
function get_editable_authors( $user_id ) {
global $wpdb;
$editable = get_editable_user_ids( $user_id );
if( !$editable ) {
return false;
} else {
$editable = join(',', $editable);
$authors = $wpdb->get_results( "SELECT * FROM $wpdb->users WHERE ID IN ($editable) ORDER BY display_name" );
}
return apply_filters('get_editable_authors', $authors);
}
function get_editable_user_ids( $user_id, $exclude_zeros = true ) {
global $wpdb;
$user = new WP_User( $user_id );
if ( ! $user->has_cap('edit_others_posts') ) {
if ( $user->has_cap('edit_posts') || $exclude_zeros == false )
return array($user->id);
else
return false;
}
$level_key = $wpdb->prefix . 'user_level';
$query = "SELECT user_id FROM $wpdb->usermeta WHERE meta_key = '$level_key'";
if ( $exclude_zeros )
$query .= " AND meta_value != '0'";
return $wpdb->get_col( $query );
}
function get_nonauthor_user_ids() {
global $wpdb;
$level_key = $wpdb->prefix . 'user_level';
$query = "SELECT user_id FROM $wpdb->usermeta WHERE meta_key = '$level_key' AND meta_value = '0'";
return $wpdb->get_col( $query );
}
function get_others_unpublished_posts($user_id, $type='any') {
global $wpdb;
$user = get_userdata( $user_id );
$level_key = $wpdb->prefix . 'user_level';
$editable = get_editable_user_ids( $user_id );
if ( in_array($type, array('draft', 'pending')) )
$type_sql = " post_status = '$type' ";
else
$type_sql = " ( post_status = 'draft' OR post_status = 'pending' ) ";
$dir = ( 'pending' == $type ) ? 'ASC' : 'DESC';
if( !$editable ) {
$other_unpubs = '';
} else {
$editable = join(',', $editable);
$other_unpubs = $wpdb->get_results("SELECT ID, post_title, post_author FROM $wpdb->posts WHERE post_type = 'post' AND $type_sql AND post_author IN ($editable) AND post_author != '$user_id' ORDER BY post_modified $dir");
}
return apply_filters('get_others_drafts', $other_unpubs);
}
function get_others_drafts($user_id) {
return get_others_unpublished_posts($user_id, 'draft');
}
function get_others_pending($user_id) {
return get_others_unpublished_posts($user_id, 'pending');
}
function get_user_to_edit( $user_id ) {
$user = new WP_User( $user_id );
$user->user_login = attribute_escape($user->user_login);
$user->user_email = attribute_escape($user->user_email);
$user->user_url = clean_url($user->user_url);
$user->first_name = attribute_escape($user->first_name);
$user->last_name = attribute_escape($user->last_name);
$user->display_name = attribute_escape($user->display_name);
$user->nickname = attribute_escape($user->nickname);
$user->aim = attribute_escape($user->aim);
$user->yim = attribute_escape($user->yim);
$user->jabber = attribute_escape($user->jabber);
$user->description = wp_specialchars($user->description);
return $user;
}
function get_users_drafts( $user_id ) {
global $wpdb;
$user_id = (int) $user_id;
$query = "SELECT ID, post_title FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'draft' AND post_author = $user_id ORDER BY post_modified DESC";
$query = apply_filters('get_users_drafts', $query);
return $wpdb->get_results( $query );
}
function wp_delete_user($id, $reassign = 'novalue') {
global $wpdb;
$id = (int) $id;
$user = get_userdata($id);
if ($reassign == 'novalue') {
$post_ids = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE post_author = $id");
if ($post_ids) {
foreach ($post_ids as $post_id)
wp_delete_post($post_id);
}
// Clean links
$wpdb->query("DELETE FROM $wpdb->links WHERE link_owner = $id");
} else {
$reassign = (int) $reassign;
$wpdb->query("UPDATE $wpdb->posts SET post_author = {$reassign} WHERE post_author = {$id}");
$wpdb->query("UPDATE $wpdb->links SET link_owner = {$reassign} WHERE link_owner = {$id}");
}
// FINALLY, delete user
do_action('delete_user', $id);
$wpdb->query("DELETE FROM $wpdb->users WHERE ID = $id");
$wpdb->query("DELETE FROM $wpdb->usermeta WHERE user_id = '$id'");
wp_cache_delete($id, 'users');
wp_cache_delete($user->user_login, 'userlogins');
return true;
}
function wp_revoke_user($id) {
$id = (int) $id;
$user = new WP_User($id);
$user->remove_all_caps();
}
?>