373 lines
13 KiB
PHP
373 lines
13 KiB
PHP
<?php
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/**
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* WordPress user administration API.
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*
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* @package WordPress
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* @subpackage Administration
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*/
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/**
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* Creates a new user from the "Users" form using $_POST information.
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*
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* It seems that the first half is for backwards compatibility, but only
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* has the ability to alter the user's role. WordPress core seems to
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* use this function only in the second way, running edit_user() with
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* no id so as to create a new user.
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*
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* @since 2.0
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*
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* @param int $user_id Optional. User ID.
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* @return null|WP_Error|int Null when adding user, WP_Error or User ID integer when no parameters.
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*/
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function add_user() {
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if ( func_num_args() ) { // The hackiest hack that ever did hack
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global $wp_roles;
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$user_id = (int) func_get_arg( 0 );
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if ( isset( $_POST['role'] ) ) {
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$new_role = sanitize_text_field( $_POST['role'] );
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// Don't let anyone with 'edit_users' (admins) edit their own role to something without it.
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if ( $user_id != get_current_user_id() || $wp_roles->role_objects[$new_role]->has_cap( 'edit_users' ) ) {
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// If the new role isn't editable by the logged-in user die with error
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$editable_roles = get_editable_roles();
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if ( empty( $editable_roles[$new_role] ) )
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wp_die(__('You can’t give users that role.'));
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$user = new WP_User( $user_id );
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$user->set_role( $new_role );
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}
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}
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} else {
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add_action( 'user_register', 'add_user' ); // See above
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return edit_user();
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}
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}
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/**
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* Edit user settings based on contents of $_POST
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*
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* Used on user-edit.php and profile.php to manage and process user options, passwords etc.
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*
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* @since 2.0
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*
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* @param int $user_id Optional. User ID.
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* @return int user id of the updated user
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*/
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function edit_user( $user_id = 0 ) {
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global $wp_roles, $wpdb;
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if ( $user_id != 0 ) {
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$update = true;
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$user->ID = (int) $user_id;
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$userdata = get_userdata( $user_id );
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$user->user_login = $wpdb->escape( $userdata->user_login );
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} else {
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$update = false;
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$user = '';
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}
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if ( !$update && isset( $_POST['user_login'] ) )
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$user->user_login = sanitize_user($_POST['user_login'], true);
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$pass1 = $pass2 = '';
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if ( isset( $_POST['pass1'] ))
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$pass1 = $_POST['pass1'];
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if ( isset( $_POST['pass2'] ))
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$pass2 = $_POST['pass2'];
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if ( isset( $_POST['role'] ) && current_user_can( 'edit_users' ) ) {
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$new_role = sanitize_text_field( $_POST['role'] );
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$potential_role = isset($wp_roles->role_objects[$new_role]) ? $wp_roles->role_objects[$new_role] : false;
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// Don't let anyone with 'edit_users' (admins) edit their own role to something without it.
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// Multisite super admins can freely edit their blog roles -- they possess all caps.
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if ( ( is_multisite() && current_user_can( 'manage_sites' ) ) || $user_id != get_current_user_id() || ($potential_role && $potential_role->has_cap( 'edit_users' ) ) )
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$user->role = $new_role;
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// If the new role isn't editable by the logged-in user die with error
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$editable_roles = get_editable_roles();
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if ( ! empty( $new_role ) && empty( $editable_roles[$new_role] ) )
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wp_die(__('You can’t give users that role.'));
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}
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if ( isset( $_POST['email'] ))
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$user->user_email = sanitize_text_field( $_POST['email'] );
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if ( isset( $_POST['url'] ) ) {
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if ( empty ( $_POST['url'] ) || $_POST['url'] == 'http://' ) {
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$user->user_url = '';
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} else {
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$user->user_url = esc_url_raw( $_POST['url'] );
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$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;
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}
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}
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if ( isset( $_POST['first_name'] ) )
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$user->first_name = sanitize_text_field( $_POST['first_name'] );
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if ( isset( $_POST['last_name'] ) )
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$user->last_name = sanitize_text_field( $_POST['last_name'] );
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if ( isset( $_POST['nickname'] ) )
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$user->nickname = sanitize_text_field( $_POST['nickname'] );
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if ( isset( $_POST['display_name'] ) )
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$user->display_name = sanitize_text_field( $_POST['display_name'] );
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if ( isset( $_POST['description'] ) )
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$user->description = trim( $_POST['description'] );
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foreach ( _wp_get_user_contactmethods() as $method => $name ) {
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if ( isset( $_POST[$method] ))
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$user->$method = sanitize_text_field( $_POST[$method] );
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}
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if ( $update ) {
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$user->rich_editing = isset( $_POST['rich_editing'] ) && 'false' == $_POST['rich_editing'] ? 'false' : 'true';
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$user->admin_color = isset( $_POST['admin_color'] ) ? sanitize_text_field( $_POST['admin_color'] ) : 'fresh';
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}
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$user->comment_shortcuts = isset( $_POST['comment_shortcuts'] ) && 'true' == $_POST['comment_shortcuts'] ? 'true' : '';
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$user->use_ssl = 0;
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if ( !empty($_POST['use_ssl']) )
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$user->use_ssl = 1;
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$errors = new WP_Error();
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/* checking that username has been typed */
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if ( $user->user_login == '' )
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$errors->add( 'user_login', __( '<strong>ERROR</strong>: Please enter a username.' ));
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/* checking the password has been typed twice */
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do_action_ref_array( 'check_passwords', array ( $user->user_login, & $pass1, & $pass2 ));
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if ( $update ) {
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if ( empty($pass1) && !empty($pass2) )
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$errors->add( 'pass', __( '<strong>ERROR</strong>: You entered your new password only once.' ), array( 'form-field' => 'pass1' ) );
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elseif ( !empty($pass1) && empty($pass2) )
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$errors->add( 'pass', __( '<strong>ERROR</strong>: You entered your new password only once.' ), array( 'form-field' => 'pass2' ) );
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} else {
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if ( empty($pass1) )
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$errors->add( 'pass', __( '<strong>ERROR</strong>: Please enter your password.' ), array( 'form-field' => 'pass1' ) );
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elseif ( empty($pass2) )
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$errors->add( 'pass', __( '<strong>ERROR</strong>: Please enter your password twice.' ), array( 'form-field' => 'pass2' ) );
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}
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/* Check for "\" in password */
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if ( false !== strpos( stripslashes($pass1), "\\" ) )
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$errors->add( 'pass', __( '<strong>ERROR</strong>: Passwords may not contain the character "\\".' ), array( 'form-field' => 'pass1' ) );
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/* checking the password has been typed twice the same */
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if ( $pass1 != $pass2 )
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$errors->add( 'pass', __( '<strong>ERROR</strong>: Please enter the same password in the two password fields.' ), array( 'form-field' => 'pass1' ) );
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if ( !empty( $pass1 ) )
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$user->user_pass = $pass1;
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if ( !$update && isset( $_POST['user_login'] ) && !validate_username( $_POST['user_login'] ) )
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$errors->add( 'user_login', __( '<strong>ERROR</strong>: This username is invalid because it uses illegal characters. Please enter a valid username.' ));
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if ( !$update && username_exists( $user->user_login ) )
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$errors->add( 'user_login', __( '<strong>ERROR</strong>: This username is already registered. Please choose another one.' ));
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/* checking e-mail address */
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if ( empty( $user->user_email ) ) {
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$errors->add( 'empty_email', __( '<strong>ERROR</strong>: Please enter an e-mail address.' ), array( 'form-field' => 'email' ) );
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} elseif ( !is_email( $user->user_email ) ) {
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$errors->add( 'invalid_email', __( '<strong>ERROR</strong>: The e-mail address isn’t correct.' ), array( 'form-field' => 'email' ) );
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} elseif ( ( $owner_id = email_exists($user->user_email) ) && ( !$update || ( $owner_id != $user->ID ) ) ) {
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$errors->add( 'email_exists', __('<strong>ERROR</strong>: This email is already registered, please choose another one.'), array( 'form-field' => 'email' ) );
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}
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// Allow plugins to return their own errors.
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do_action_ref_array('user_profile_update_errors', array ( &$errors, $update, &$user ) );
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if ( $errors->get_error_codes() )
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return $errors;
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if ( $update ) {
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$user_id = wp_update_user( get_object_vars( $user ) );
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} else {
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$user_id = wp_insert_user( get_object_vars( $user ) );
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wp_new_user_notification( $user_id, isset($_POST['send_password']) ? $pass1 : '' );
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}
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return $user_id;
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}
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/**
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* Fetch a filtered list of user roles that the current user is
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* allowed to edit.
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*
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* Simple function who's main purpose is to allow filtering of the
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* list of roles in the $wp_roles object so that plugins can remove
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* innappropriate ones depending on the situation or user making edits.
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* Specifically because without filtering anyone with the edit_users
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* capability can edit others to be administrators, even if they are
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* only editors or authors. This filter allows admins to delegate
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* user management.
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*
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* @since 2.8
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*
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* @return unknown
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*/
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function get_editable_roles() {
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global $wp_roles;
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$all_roles = $wp_roles->roles;
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$editable_roles = apply_filters('editable_roles', $all_roles);
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return $editable_roles;
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}
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/**
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* Retrieve user data and filter it.
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*
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* @since unknown
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*
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* @param int $user_id User ID.
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* @return object WP_User object with user data.
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*/
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function get_user_to_edit( $user_id ) {
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$user = new WP_User( $user_id );
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$user_contactmethods = _wp_get_user_contactmethods();
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foreach ($user_contactmethods as $method => $name) {
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if ( empty( $user->{$method} ) )
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$user->{$method} = '';
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}
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if ( empty($user->description) )
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$user->description = '';
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$user = sanitize_user_object($user, 'edit');
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return $user;
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}
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/**
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* Retrieve the user's drafts.
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*
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* @since unknown
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*
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* @param int $user_id User ID.
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* @return array
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*/
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function get_users_drafts( $user_id ) {
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global $wpdb;
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$query = $wpdb->prepare("SELECT ID, post_title FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'draft' AND post_author = %d ORDER BY post_modified DESC", $user_id);
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$query = apply_filters('get_users_drafts', $query);
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return $wpdb->get_results( $query );
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}
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/**
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* Remove user and optionally reassign posts and links to another user.
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*
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* If the $reassign parameter is not assigned to an User ID, then all posts will
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* be deleted of that user. The action 'delete_user' that is passed the User ID
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* being deleted will be run after the posts are either reassigned or deleted.
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* The user meta will also be deleted that are for that User ID.
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*
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* @since unknown
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*
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* @param int $id User ID.
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* @param int $reassign Optional. Reassign posts and links to new User ID.
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* @return bool True when finished.
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*/
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function wp_delete_user( $id, $reassign = 'novalue' ) {
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global $wpdb;
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$id = (int) $id;
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// allow for transaction statement
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do_action('delete_user', $id);
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if ( 'novalue' === $reassign || null === $reassign ) {
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$post_ids = $wpdb->get_col( $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_author = %d", $id) );
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if ( $post_ids ) {
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foreach ( $post_ids as $post_id )
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wp_delete_post($post_id);
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}
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// Clean links
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$link_ids = $wpdb->get_col( $wpdb->prepare("SELECT link_id FROM $wpdb->links WHERE link_owner = %d", $id) );
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if ( $link_ids ) {
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foreach ( $link_ids as $link_id )
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wp_delete_link($link_id);
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}
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} else {
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$reassign = (int) $reassign;
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$wpdb->update( $wpdb->posts, array('post_author' => $reassign), array('post_author' => $id) );
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$wpdb->update( $wpdb->links, array('link_owner' => $reassign), array('link_owner' => $id) );
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}
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clean_user_cache($id);
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// FINALLY, delete user
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if ( !is_multisite() ) {
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$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->usermeta WHERE user_id = %d", $id) );
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$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->users WHERE ID = %d", $id) );
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} else {
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$level_key = $wpdb->get_blog_prefix() . 'capabilities'; // wpmu site admins don't have user_levels
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$wpdb->query("DELETE FROM $wpdb->usermeta WHERE user_id = $id AND meta_key = '{$level_key}'");
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}
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// allow for commit transaction
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do_action('deleted_user', $id);
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return true;
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}
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/**
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* Remove all capabilities from user.
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*
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* @since unknown
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*
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* @param int $id User ID.
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*/
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function wp_revoke_user($id) {
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$id = (int) $id;
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$user = new WP_User($id);
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$user->remove_all_caps();
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}
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add_action('admin_init', 'default_password_nag_handler');
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function default_password_nag_handler($errors = false) {
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global $user_ID;
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if ( ! get_user_option('default_password_nag') ) //Short circuit it.
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return;
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//get_user_setting = JS saved UI setting. else no-js-falback code.
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if ( 'hide' == get_user_setting('default_password_nag') || isset($_GET['default_password_nag']) && '0' == $_GET['default_password_nag'] ) {
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delete_user_setting('default_password_nag');
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update_user_option($user_ID, 'default_password_nag', false, true);
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}
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}
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add_action('profile_update', 'default_password_nag_edit_user', 10, 2);
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function default_password_nag_edit_user($user_ID, $old_data) {
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if ( ! get_user_option('default_password_nag', $user_ID) ) //Short circuit it.
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return;
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$new_data = get_userdata($user_ID);
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if ( $new_data->user_pass != $old_data->user_pass ) { //Remove the nag if the password has been changed.
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delete_user_setting('default_password_nag', $user_ID);
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update_user_option($user_ID, 'default_password_nag', false, true);
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}
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}
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add_action('admin_notices', 'default_password_nag');
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function default_password_nag() {
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global $pagenow;
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if ( 'profile.php' == $pagenow || ! get_user_option('default_password_nag') ) //Short circuit it.
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return;
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echo '<div class="error default-password-nag">';
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echo '<p>';
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echo '<strong>' . __('Notice:') . '</strong> ';
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_e('You’re using the auto-generated password for your account. Would you like to change it to something easier to remember?');
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echo '</p><p>';
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printf( '<a href="%s">' . __('Yes, take me to my profile page') . '</a> | ', admin_url('profile.php') . '#password' );
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printf( '<a href="%s" id="default-password-nag-no">' . __('No thanks, do not remind me again') . '</a>', '?default_password_nag=0' );
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echo '</p></div>';
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}
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?>
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