Your IP : 216.73.216.5
<?php
/**
* User Switching plugin for WordPress
*
* @package user-switching
* @link https://github.com/johnbillion/user-switching
* @author John Blackbourn
* @copyright 2009-2025 John Blackbourn
* @license GPL v2 or later
*
* Plugin Name: User Switching
* Description: Instant switching between user accounts in WordPress
* Version: 1.9.2
* Plugin URI: https://wordpress.org/plugins/user-switching/
* Author: John Blackbourn
* Author URI: https://johnblackbourn.com
* Text Domain: user-switching
* Domain Path: /languages/
* Network: true
* Requires at least: 6.0
* Requires PHP: 7.4
* License URI: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Main singleton class for the User Switching plugin.
*/
final class user_switching {
/**
* The name used to identify the application during a WordPress redirect.
*
* @var string
*/
public static string $application = 'WordPress/User Switching';
const REDIRECT_TYPE_NONE = null;
const REDIRECT_TYPE_URL = 'url';
const REDIRECT_TYPE_POST = 'post';
const REDIRECT_TYPE_TERM = 'term';
const REDIRECT_TYPE_USER = 'user';
const REDIRECT_TYPE_COMMENT = 'comment';
/**
* Sets up all the filters and actions.
*/
public function init_hooks(): void {
// Required functionality:
add_filter( 'user_has_cap', [ $this, 'filter_user_has_cap' ], 10, 4 );
add_filter( 'map_meta_cap', [ $this, 'filter_map_meta_cap' ], 10, 4 );
add_filter( 'user_row_actions', [ $this, 'filter_user_row_actions' ], 10, 2 );
add_action( 'plugins_loaded', [ $this, 'action_plugins_loaded' ], 1 );
add_action( 'init', [ $this, 'action_init' ] );
add_action( 'all_admin_notices', [ $this, 'action_admin_notices' ], 1 );
add_action( 'wp_logout', 'user_switching_clear_olduser_cookie', 10, 0 );
add_action( 'wp_login', 'user_switching_clear_olduser_cookie', 10, 0 );
// Nice-to-haves:
add_filter( 'ms_user_row_actions', [ $this, 'filter_user_row_actions' ], 10, 2 );
add_filter( 'login_message', [ $this, 'filter_login_message' ], 1 );
add_filter( 'removable_query_args', [ $this, 'filter_removable_query_args' ] );
add_action( 'wp_meta', [ $this, 'action_wp_meta' ] );
add_filter( 'plugin_row_meta', [ $this, 'filter_plugin_row_meta' ], 10, 2 );
add_action( 'wp_footer', [ $this, 'action_wp_footer' ] );
add_action( 'personal_options', [ $this, 'action_personal_options' ] );
add_action( 'admin_bar_menu', [ $this, 'action_admin_bar_menu' ], 11 );
add_action( 'shutdown', [ $this, 'action_shutdown_for_wp_die' ], 1, 0 );
// BuddyPress integration:
add_action( 'bp_member_header_actions', [ $this, 'action_bp_button' ], 11 );
add_action( 'bp_directory_members_actions', [ $this, 'action_bp_button' ], 11 );
// bbPress integration:
add_action( 'bbp_template_after_user_details_menu_items', [ $this, 'action_bbpress_button' ] );
// WooCommerce integration:
add_action( 'woocommerce_login_form_start', [ $this, 'action_woocommerce_login_form_start' ], 10, 0 );
add_action( 'woocommerce_admin_order_data_after_order_details', [ $this, 'action_woocommerce_order_details' ], 1 );
add_filter( 'woocommerce_account_menu_items', [ $this, 'filter_woocommerce_account_menu_items' ], 999 );
add_filter( 'woocommerce_get_endpoint_url', [ $this, 'filter_woocommerce_get_endpoint_url' ], 10, 2 );
add_action( 'switch_to_user', [ $this, 'forget_woocommerce_session' ] );
add_action( 'switch_back_user', [ $this, 'forget_woocommerce_session' ] );
}
/**
* Defines the names of the cookies used by User Switching.
*/
public function action_plugins_loaded(): void {
// User Switching's auth_cookie
if ( ! defined( 'USER_SWITCHING_COOKIE' ) ) {
define( 'USER_SWITCHING_COOKIE', 'wordpress_user_sw_' . COOKIEHASH );
}
// User Switching's secure_auth_cookie
if ( ! defined( 'USER_SWITCHING_SECURE_COOKIE' ) ) {
define( 'USER_SWITCHING_SECURE_COOKIE', 'wordpress_user_sw_secure_' . COOKIEHASH );
}
// User Switching's logged_in_cookie
if ( ! defined( 'USER_SWITCHING_OLDUSER_COOKIE' ) ) {
define( 'USER_SWITCHING_OLDUSER_COOKIE', 'wordpress_user_sw_olduser_' . COOKIEHASH );
}
}
/**
* Outputs the 'Switch To' link on the user editing screen if the current user has permission to switch to them.
*
* @param WP_User $user User object for this screen.
*/
public function action_personal_options( WP_User $user ): void {
$link = self::maybe_switch_url( $user );
if ( ! $link ) {
return;
}
?>
<tr class="user-switching-wrap">
<th scope="row">
<?php echo esc_html_x( 'User Switching', 'User Switching title on user profile screen', 'user-switching' ); ?>
</th>
<td>
<a id="user_switching_switcher" class="button" href="<?php echo esc_url( $link ); ?>">
<?php esc_html_e( 'Switch To', 'user-switching' ); ?>
</a>
</td>
</tr>
<?php
}
/**
* Returns whether the current logged in user is being remembered in the form of a persistent browser cookie
* (ie. they checked the 'Remember Me' check box when they logged in). This is used to persist the 'remember me'
* value when the user switches to another user.
*
* @return bool Whether the current user is being 'remembered'.
*/
public static function remember(): bool {
/** This filter is documented in wp-includes/pluggable.php */
$cookie_life = apply_filters( 'auth_cookie_expiration', 172800, get_current_user_id(), false );
$current = wp_parse_auth_cookie( '', 'logged_in' );
if ( ! $current ) {
return false;
}
// Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
// If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
return ( intval( $current['expiration'] ) - time() > $cookie_life );
}
/**
* Loads localisation files and routes actions depending on the 'action' query var.
*/
public function action_init(): void {
load_plugin_textdomain( 'user-switching', false, dirname( plugin_basename( __FILE__ ) ) . '/languages' );
if ( ! isset( $_REQUEST['action'] ) ) {
return;
}
switch ( $_REQUEST['action'] ) {
// We're attempting to switch to another user:
case 'switch_to_user':
$user_id = absint( $_REQUEST['user_id'] ?? 0 );
// Check authentication:
if ( ! current_user_can( 'switch_to_user', $user_id ) ) {
wp_die( esc_html__( 'Could not switch users.', 'user-switching' ), 403 );
}
// Check intent:
check_admin_referer( "switch_to_user_{$user_id}" );
$current_user = wp_get_current_user();
$target = get_userdata( $user_id );
if ( ! $target ) {
wp_die( esc_html__( 'Could not switch users.', 'user-switching' ), 404 );
}
$duplicate = self::get_duplicated_switch( $target, $current_user );
if ( $duplicate && ! isset( $_GET['force_switch_user'] ) ) {
// Prevent Query Monitor from showing a stack trace for the wp_die() call:
// phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
do_action( 'qm/cease' );
$message = sprintf(
/* Translators: 1: The name of the user who is currently switched to the target user, 2: The name of the target user, 3: Period of time (for example "5 minutes") */
__( '%1$s is currently switched to %2$s. They switched %3$s ago. Do you want to continue switching?', 'user-switching' ),
$duplicate['user']->display_name,
$target->display_name,
human_time_diff( $duplicate['login'] ),
);
$yes = sprintf(
/* Translators: %s is the name of the target user */
__( 'Yes, switch to %s', 'user-switching' ),
$target->display_name,
);
$no = __( 'No, go back', 'user-switching' );
wp_die(
sprintf(
'%1$s<br><br><a class="button" href="%2$s">%3$s</a> <a class="button" href="%4$s">%5$s</a>',
esc_html( $message ),
esc_url( add_query_arg( 'force_switch_user', '1' ) ),
esc_html( $yes ),
'javascript:history.back()',
esc_html( $no ),
),
'',
[
'response' => 409,
'back_link' => false,
],
);
}
// Switch user:
$user = switch_to_user( $target->ID, self::remember() );
if ( $user ) {
$redirect_to = self::get_redirect( $user, $current_user );
// Redirect to the dashboard or the home URL depending on capabilities:
$args = [
'user_switched' => 'true',
];
if ( ! $redirect_to ) {
$redirect_to = current_user_can( 'read' ) ? admin_url() : home_url();
}
wp_safe_redirect( add_query_arg( $args, $redirect_to ), 302, self::$application );
exit;
} else {
wp_die( esc_html__( 'Could not switch users.', 'user-switching' ), 404 );
}
break;
// We're attempting to switch back to the originating user:
case 'switch_to_olduser':
// Fetch the originating user data:
$old_user = self::get_old_user();
if ( ! $old_user ) {
wp_die( esc_html__( 'Could not switch users.', 'user-switching' ), 400 );
}
// Check authentication:
if ( ! self::authenticate_old_user( $old_user ) ) {
wp_die( esc_html__( 'Could not switch users.', 'user-switching' ), 403 );
}
// Check intent:
check_admin_referer( "switch_to_olduser_{$old_user->ID}" );
$current_user = wp_get_current_user();
// Switch user:
if ( switch_to_user( $old_user->ID, self::remember(), false ) ) {
if ( ! empty( $_REQUEST['interim-login'] ) && function_exists( 'login_header' ) ) {
// phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
$GLOBALS['interim_login'] = 'success';
login_header( '', '' );
exit;
}
$redirect_to = self::get_redirect( $old_user, $current_user );
$args = [
'user_switched' => 'true',
'switched_back' => 'true',
];
if ( ! $redirect_to ) {
$redirect_to = admin_url( 'users.php' );
}
wp_safe_redirect( add_query_arg( $args, $redirect_to ), 302, self::$application );
exit;
} else {
wp_die( esc_html__( 'Could not switch users.', 'user-switching' ), 404 );
}
break;
// We're attempting to switch off the current user:
case 'switch_off':
// Check authentication:
if ( ! current_user_can( 'switch_off' ) ) {
/* Translators: "switch off" means to temporarily log out */
wp_die( esc_html__( 'Could not switch off.', 'user-switching' ), 403 );
}
$current_user = wp_get_current_user();
// Check intent:
check_admin_referer( 'switch_off' );
// Switch off:
if ( switch_off_user() ) {
$redirect_to = self::get_redirect( null, $current_user );
$args = [
'switched_off' => 'true',
];
if ( ! $redirect_to ) {
$redirect_to = home_url();
}
wp_safe_redirect( add_query_arg( $args, $redirect_to ), 302, self::$application );
exit;
} else {
/* Translators: "switch off" means to temporarily log out */
wp_die( esc_html__( 'Could not switch off.', 'user-switching' ), 403 );
}
break;
}
}
/**
* Detects if the target user has any sessions that originated from another user switching into their account.
*
* Returns information about the first such session, if any.
*
* @param WP_User $target Target user.
* @param WP_User $ignore User to ignore when checking for duplicate switches.
* @return array|null {
* Information about the duplicate, or null if there is none.
*
* @type int $login The login time of the session that originated from another user.
* @type WP_User $user The user who switched into the target user's account.
* }
* @phpstan-return array{
* login: int,
* user: WP_User,
* }|null
*/
public static function get_duplicated_switch( WP_User $target, WP_User $ignore ): ?array {
// Fetch the user sessions for the target user:
$sessions = WP_Session_Tokens::get_instance( $target->ID );
// Determine if any of the target user's sessions originated from another user:
$other_user_sessions = array_filter(
$sessions->get_all(),
static fn ( array $session ): bool => (
isset( $session['switched_from_id'] ) && $session['switched_from_id'] !== $ignore->ID
)
);
if ( empty( $other_user_sessions ) ) {
return null;
}
$session = reset( $other_user_sessions );
$switched_from_user = get_userdata( $session['switched_from_id'] );
if ( ! $switched_from_user ) {
return null;
}
return [
'login' => $session['login'],
'user' => $switched_from_user,
];
}
/**
* Fetches the URL to redirect to for a given user (used after switching).
*
* @param WP_User $new_user Optional. The new user's WP_User object.
* @param WP_User $old_user Optional. The old user's WP_User object.
* @return string The URL to redirect to.
*/
protected static function get_redirect( ?WP_User $new_user = null, ?WP_User $old_user = null ): string {
$redirect_to = '';
$requested_redirect_to = '';
$redirect_type = self::REDIRECT_TYPE_NONE;
if ( ! empty( $_REQUEST['redirect_to'] ) ) {
// URL
$redirect_to = self::remove_query_args( wp_unslash( $_REQUEST['redirect_to'] ) );
$requested_redirect_to = wp_unslash( $_REQUEST['redirect_to'] );
$redirect_type = self::REDIRECT_TYPE_URL;
} elseif ( ! empty( $_GET['redirect_to_post'] ) ) {
// Post
$post_id = absint( $_GET['redirect_to_post'] );
$redirect_type = self::REDIRECT_TYPE_POST;
if ( is_post_publicly_viewable( $post_id ) ) {
$link = get_permalink( $post_id );
if ( is_string( $link ) ) {
$redirect_to = $link;
$requested_redirect_to = $link;
}
}
} elseif ( ! empty( $_GET['redirect_to_term'] ) ) {
// Term
$term = get_term( absint( $_GET['redirect_to_term'] ) );
$redirect_type = self::REDIRECT_TYPE_TERM;
if ( ( $term instanceof WP_Term ) && is_taxonomy_viewable( $term->taxonomy ) ) {
$link = get_term_link( $term );
if ( is_string( $link ) ) {
$redirect_to = $link;
$requested_redirect_to = $link;
}
}
} elseif ( ! empty( $_GET['redirect_to_user'] ) ) {
// User
$user = get_userdata( absint( $_GET['redirect_to_user'] ) );
$redirect_type = self::REDIRECT_TYPE_USER;
if ( $user instanceof WP_User ) {
$link = get_author_posts_url( $user->ID );
if ( is_string( $link ) ) {
$redirect_to = $link;
$requested_redirect_to = $link;
}
}
} elseif ( ! empty( $_GET['redirect_to_comment'] ) ) {
// Comment
$comment = get_comment( absint( $_GET['redirect_to_comment'] ) );
$redirect_type = self::REDIRECT_TYPE_COMMENT;
if ( $comment instanceof WP_Comment ) {
if ( 'approved' === wp_get_comment_status( $comment ) ) {
$link = get_comment_link( $comment );
if ( is_string( $link ) ) {
$redirect_to = $link;
$requested_redirect_to = $link;
}
} elseif ( is_post_publicly_viewable( (int) $comment->comment_post_ID ) ) {
$link = get_permalink( (int) $comment->comment_post_ID );
if ( is_string( $link ) ) {
$redirect_to = $link;
$requested_redirect_to = $link;
}
}
}
}
if ( ! $new_user ) {
/** This filter is documented in wp-login.php */
$redirect_to = apply_filters( 'logout_redirect', $redirect_to, $requested_redirect_to, $old_user );
} else {
/** This filter is documented in wp-login.php */
$redirect_to = apply_filters( 'login_redirect', $redirect_to, $requested_redirect_to, $new_user );
}
/**
* Filters the redirect location after a user switches to another account or switches off.
*
* @since 1.7.0
*
* @param string $redirect_to The target redirect location, or an empty string if none is specified.
* @param string|null $redirect_type The redirect type, see the `user_switching::REDIRECT_*` constants.
* @param WP_User|null $new_user The user being switched to, or null if there is none.
* @param WP_User|null $old_user The user being switched from, or null if there is none.
*/
return apply_filters( 'user_switching_redirect_to', $redirect_to, $redirect_type, $new_user, $old_user );
}
/**
* Displays the 'Switched to {user}' and 'Switch back to {user}' messages in the admin area.
*/
public function action_admin_notices(): void {
$user = wp_get_current_user();
$old_user = self::get_old_user();
if ( $old_user ) {
$switched_locale = false;
$lang_attr = '';
$locale = get_user_locale( $old_user );
$switched_locale = switch_to_locale( $locale );
$lang_attr = str_replace( '_', '-', $locale );
?>
<div id="user_switching" class="updated notice notice-success is-dismissible">
<?php
if ( $lang_attr ) {
printf(
'<p lang="%s">',
esc_attr( $lang_attr )
);
} else {
echo '<p>';
}
?>
<span class="dashicons dashicons-admin-users" style="color:#56c234" aria-hidden="true"></span>
<?php
$message = '';
$just_switched = isset( $_GET['user_switched'] );
if ( $just_switched ) {
$message = esc_html( self::switched_to_message( $user ) );
}
$switch_back_url = add_query_arg( [
'redirect_to' => rawurlencode( self::current_url() ),
], self::switch_back_url( $old_user ) );
$message .= sprintf(
' <a href="%s">%s</a>.',
esc_url( $switch_back_url ),
esc_html( self::switch_back_message( $old_user ) )
);
/**
* Filters the contents of the message that's displayed to switched users in the admin area.
*
* @since 1.1.0
*
* @param string $message The message displayed to the switched user.
* @param WP_User $user The current user object.
* @param WP_User $old_user The old user object.
* @param string $switch_back_url The switch back URL.
* @param bool $just_switched Whether the user made the switch on this page request.
*/
$message = apply_filters( 'user_switching_switched_message', $message, $user, $old_user, $switch_back_url, $just_switched );
echo wp_kses( $message, [
'a' => [
'href' => [],
],
] );
?>
</p>
</div>
<?php
if ( $switched_locale ) {
restore_previous_locale();
}
} elseif ( isset( $_GET['user_switched'] ) ) {
?>
<div id="user_switching" class="updated notice notice-success is-dismissible">
<p>
<?php
if ( isset( $_GET['switched_back'] ) ) {
echo esc_html( self::switched_back_message( $user ) );
} else {
echo esc_html( self::switched_to_message( $user ) );
}
?>
</p>
</div>
<?php
}
}
/**
* Validates the old user cookie and returns its user data.
*
* @return false|WP_User False if there's no old user cookie or it's invalid, WP_User object if it's present and valid.
*/
public static function get_old_user() {
$cookie = user_switching_get_olduser_cookie();
if ( ! empty( $cookie ) ) {
$old_user_id = wp_validate_auth_cookie( $cookie, 'logged_in' );
if ( $old_user_id ) {
return get_userdata( $old_user_id );
}
}
return false;
}
/**
* Authenticates an old user by verifying the latest entry in the auth cookie.
*
* @param WP_User $user A WP_User object (usually from the logged_in cookie).
* @return bool Whether verification with the auth cookie passed.
*/
public static function authenticate_old_user( WP_User $user ): bool {
$cookie = user_switching_get_auth_cookie();
if ( ! empty( $cookie ) ) {
if ( self::secure_auth_cookie() ) {
$scheme = 'secure_auth';
} else {
$scheme = 'auth';
}
$old_user_id = wp_validate_auth_cookie( end( $cookie ), $scheme );
if ( $old_user_id ) {
return ( $user->ID === $old_user_id );
}
}
return false;
}
/**
* Adds a 'Switch back to {user}' link to the account menu, and a `Switch To` link to the user edit menu.
*
* @param WP_Admin_Bar $wp_admin_bar The admin bar object.
*/
public function action_admin_bar_menu( WP_Admin_Bar $wp_admin_bar ): void {
if ( ! is_admin_bar_showing() ) {
return;
}
if ( $wp_admin_bar->get_node( 'user-actions' ) ) {
$parent = 'user-actions';
} else {
return;
}
$old_user = self::get_old_user();
if ( $old_user ) {
$wp_admin_bar->add_node( [
'parent' => $parent,
'id' => 'switch-back',
'title' => esc_html( self::switch_back_message( $old_user ) ),
'href' => add_query_arg( [
'redirect_to' => rawurlencode( self::current_url() ),
], self::switch_back_url( $old_user ) ),
] );
}
if ( current_user_can( 'switch_off' ) ) {
$url = self::switch_off_url();
$redirect_to = is_admin() ? self::get_admin_redirect_to() : [
'redirect_to' => rawurlencode( self::current_url() ),
];
if ( is_array( $redirect_to ) ) {
$url = add_query_arg( $redirect_to, $url );
}
$wp_admin_bar->add_node( [
'parent' => $parent,
'id' => 'switch-off',
/* Translators: "switch off" means to temporarily log out */
'title' => esc_html__( 'Switch Off', 'user-switching' ),
'href' => $url,
] );
}
if ( ! is_admin() && is_author() && ( get_queried_object() instanceof WP_User ) ) {
if ( $old_user ) {
$wp_admin_bar->add_node( [
'parent' => 'edit',
'id' => 'author-switch-back',
'title' => esc_html( self::switch_back_message( $old_user ) ),
'href' => add_query_arg( [
'redirect_to' => rawurlencode( self::current_url() ),
], self::switch_back_url( $old_user ) ),
] );
} elseif ( current_user_can( 'switch_to_user', get_queried_object_id() ) ) {
$wp_admin_bar->add_node( [
'parent' => 'edit',
'id' => 'author-switch-to',
'title' => esc_html__( 'Switch To', 'user-switching' ),
'href' => add_query_arg( [
'redirect_to' => rawurlencode( self::current_url() ),
], self::switch_to_url( get_queried_object() ) ),
] );
}
}
}
/**
* Adds a 'Switch back to {user}' link to access denied messages within the admin area.
*
* Note that this doesn't appear for the "You need a higher level of permission" errors
* because they use a standard `wp_die()` call rather than `admin_page_access_denied`.
*/
public function action_shutdown_for_wp_die(): void {
if ( ! did_action( 'admin_page_access_denied' ) ) {
return;
}
$old_user = self::get_old_user();
if ( ! ( $old_user instanceof WP_User ) ) {
return;
}
$url = add_query_arg( [
'redirect_to' => rawurlencode( self::current_url() ),
], self::switch_back_url( $old_user ) );
printf(
'<p style="%s" id="user_switching_wp_die"><a href="%s">%s</a></p>',
'border-top: 1px solid #dadada; margin-top: 3em; padding-top: 2em',
esc_url( $url ),
esc_html( self::switch_back_message( $old_user ) )
);
?>
<script>
// Move the switch back link so it's within the wp_die message container.
document.addEventListener( 'DOMContentLoaded', function() {
document.querySelector( '.wp-die-message' ).appendChild(
document.getElementById( 'user_switching_wp_die' )
);
} );
</script>
<?php
}
/**
* Returns a context-aware redirect parameter for use when switching off in the admin area.
*
* This is used to redirect the user to the URL of the item they're editing at the time.
*
* @return ?array<string, int>
*/
public static function get_admin_redirect_to(): ?array {
if ( ! empty( $_GET['post'] ) ) {
// Post
return [
'redirect_to_post' => intval( $_GET['post'] ),
];
} elseif ( ! empty( $_GET['tag_ID'] ) ) {
// Term
return [
'redirect_to_term' => intval( $_GET['tag_ID'] ),
];
} elseif ( ! empty( $_GET['user_id'] ) ) {
// User
return [
'redirect_to_user' => intval( $_GET['user_id'] ),
];
} elseif ( ! empty( $_GET['c'] ) ) {
// Comment
return [
'redirect_to_comment' => intval( $_GET['c'] ),
];
}
return null;
}
/**
* Adds a 'Switch back to {user}' link to the Meta sidebar widget.
*/
public function action_wp_meta(): void {
$old_user = self::get_old_user();
if ( $old_user instanceof WP_User ) {
$url = add_query_arg( [
'redirect_to' => rawurlencode( self::current_url() ),
], self::switch_back_url( $old_user ) );
printf(
'<li id="user_switching_switch_on"><a href="%s">%s</a></li>',
esc_url( $url ),
esc_html( self::switch_back_message( $old_user ) )
);
}
}
/**
* Adds a 'Switch back to {user}' link to the WordPress footer if the admin toolbar isn't showing.
*/
public function action_wp_footer(): void {
if ( is_admin_bar_showing() || did_action( 'wp_meta' ) ) {
return;
}
/**
* Allows the 'Switch back to {user}' link in the WordPress footer to be disabled.
*
* @since 1.5.5
*
* @param bool $show_in_footer Whether to show the 'Switch back to {user}' link in footer.
*/
if ( ! apply_filters( 'user_switching_in_footer', true ) ) {
return;
}
$old_user = self::get_old_user();
if ( $old_user instanceof WP_User ) {
$url = add_query_arg( [
'redirect_to' => rawurlencode( self::current_url() ),
], self::switch_back_url( $old_user ) );
printf(
'<p id="user_switching_switch_on" style="%s"><a href="%s" style="%s">%s</a></p>',
'position: fixed; bottom: 40px; padding: 0; margin: 0; left: 10px; font-size: 13px; z-index:99999;',
esc_url( $url ),
'padding: 8px 10px; background: #fff; color: #3858e9;',
esc_html( self::switch_back_message( $old_user ) )
);
}
}
/**
* Adds a 'Switch back to {user}' link to the WordPress login screen.
*
* @param string $message The login screen message.
* @return string The login screen message.
*/
public function filter_login_message( string $message ): string {
$old_user = self::get_old_user();
if ( $old_user instanceof WP_User ) {
$url = self::switch_back_url( $old_user );
if ( ! empty( $_REQUEST['interim-login'] ) ) {
$url = add_query_arg( [
'interim-login' => '1',
], $url );
} elseif ( ! empty( $_REQUEST['redirect_to'] ) ) {
$url = add_query_arg( [
'redirect_to' => rawurlencode( wp_unslash( $_REQUEST['redirect_to'] ) ),
], $url );
}
$message .= '<p class="message" id="user_switching_switch_on">';
$message .= '<span class="dashicons dashicons-admin-users" style="color:#56c234" aria-hidden="true"></span> ';
$message .= sprintf(
'<a href="%1$s" onclick="window.location.href=\'%1$s\';return false;">%2$s</a>',
esc_url( $url ),
esc_html( self::switch_back_message( $old_user ) )
);
$message .= '</p>';
}
return $message;
}
/**
* Adds a 'Switch To' link to each list of user actions on the Users screen.
*
* @param array<string,string> $actions Array of actions to display for this user row.
* @param WP_User $user The user object displayed in this row.
* @return array<string,string> Array of actions to display for this user row.
*/
public function filter_user_row_actions( array $actions, WP_User $user ): array {
$link = self::maybe_switch_url( $user );
if ( ! $link ) {
return $actions;
}
$actions['switch_to_user'] = sprintf(
'<a href="%s">%s</a>',
esc_url( $link ),
esc_html__( 'Switch To', 'user-switching' )
);
return $actions;
}
/**
* Adds a 'Switch To' link to each member's profile page and profile listings in BuddyPress.
*/
public function action_bp_button(): void {
$user = null;
if ( bp_is_user() ) {
$user = get_userdata( bp_displayed_user_id() );
} elseif ( bp_is_members_directory() ) {
$user = get_userdata( bp_get_member_user_id() );
}
if ( ! $user ) {
return;
}
$link = self::maybe_switch_url( $user );
if ( ! $link ) {
return;
}
if ( function_exists( 'bp_members_get_user_url' ) ) {
$redirect_to = bp_members_get_user_url( $user->ID );
} elseif ( function_exists( 'bp_core_get_user_domain' ) ) {
$redirect_to = bp_core_get_user_domain( $user->ID );
} else {
$redirect_to = home_url();
}
$link = add_query_arg( [
'redirect_to' => rawurlencode( $redirect_to ),
], $link );
$components = array_keys( buddypress()->active_components );
echo bp_get_button( [
'id' => 'user_switching',
'component' => reset( $components ),
'link_href' => esc_url( $link ),
'link_text' => esc_html__( 'Switch To', 'user-switching' ),
'wrapper_id' => 'user_switching_switch_to',
] );
}
/**
* Adds a 'Switch To' link to each member's profile page in bbPress.
*/
public function action_bbpress_button(): void {
$user = get_userdata( bbp_get_user_id() );
if ( ! $user ) {
return;
}
$link = self::maybe_switch_url( $user );
if ( ! $link ) {
return;
}
$link = add_query_arg( [
'redirect_to' => rawurlencode( bbp_get_user_profile_url( $user->ID ) ),
], $link );
echo '<ul id="user_switching_switch_to">';
printf(
'<li><a href="%s">%s</a></li>',
esc_url( $link ),
esc_html__( 'Switch To', 'user-switching' )
);
echo '</ul>';
}
/**
* Filters the array of row meta for each plugin in the Plugins list table.
*
* @param array<int,string> $plugin_meta An array of the plugin row's meta data.
* @param string $plugin_file Path to the plugin file relative to the plugins directory.
* @return array<int,string> An array of the plugin row's meta data.
*/
public function filter_plugin_row_meta( array $plugin_meta, $plugin_file ): array {
if ( 'user-switching/user-switching.php' !== $plugin_file ) {
return $plugin_meta;
}
$plugin_meta[] = sprintf(
'<a href="%1$s"><span class="dashicons dashicons-star-filled" aria-hidden="true" style="font-size:14px;line-height:1.3"></span>%2$s</a>',
'https://github.com/sponsors/johnbillion',
esc_html_x( 'Sponsor', 'verb', 'user-switching' )
);
return $plugin_meta;
}
/**
* Filters the list of query arguments which get removed from admin area URLs in WordPress.
*
* @link https://core.trac.wordpress.org/ticket/23367
*
* @param array<int,string> $args Array of removable query arguments.
* @return array<int,string> Updated array of removable query arguments.
*/
public function filter_removable_query_args( array $args ): array {
return array_merge( $args, [
'user_switched',
'switched_off',
'switched_back',
] );
}
/**
* Returns the switch to or switch back URL for a given user.
*
* @param WP_User $user The user to be switched to.
* @return string|false The required URL, or false if there's no old user or the user doesn't have the required capability.
*/
public static function maybe_switch_url( WP_User $user ) {
$old_user = self::get_old_user();
if ( $old_user && ( $old_user->ID === $user->ID ) ) {
return self::switch_back_url( $old_user );
} elseif ( current_user_can( 'switch_to_user', $user->ID ) ) {
return self::switch_to_url( $user );
} else {
return false;
}
}
/**
* Returns the nonce-secured URL needed to switch to a given user ID.
*
* @param WP_User $user The user to be switched to.
* @return string The required URL.
*/
public static function switch_to_url( WP_User $user ): string {
return wp_nonce_url( add_query_arg( [
'action' => 'switch_to_user',
'user_id' => $user->ID,
'nr' => 1,
], wp_login_url() ), "switch_to_user_{$user->ID}" );
}
/**
* Returns the nonce-secured URL needed to switch back to the originating user.
*
* @param WP_User $user The old user.
* @return string The required URL.
*/
public static function switch_back_url( WP_User $user ): string {
return wp_nonce_url( add_query_arg( [
'action' => 'switch_to_olduser',
'nr' => 1,
], wp_login_url() ), "switch_to_olduser_{$user->ID}" );
}
/**
* Returns the nonce-secured URL needed to switch off the current user.
*
* @since 1.9.0 The `$user` parameter has been removed as it's no longer needed.
*
* @return string The required URL.
*/
public static function switch_off_url(): string {
return wp_nonce_url( add_query_arg( [
'action' => 'switch_off',
'nr' => 1,
], wp_login_url() ), 'switch_off' );
}
/**
* Returns the message shown to the user when they've switched to a user.
*
* @param WP_User $user The concerned user.
* @return string The message.
*/
public static function switched_to_message( WP_User $user ): string {
$message = sprintf(
/* Translators: 1: user display name; 2: username; */
__( 'Switched to %1$s (%2$s).', 'user-switching' ),
$user->display_name,
$user->user_login
);
// Removes the user login from this message without invalidating existing translations
return str_replace( sprintf(
' (%s)',
$user->user_login
), '', $message );
}
/**
* Returns the message shown to the user for the link to switch back to their original user.
*
* @param WP_User $user The concerned user.
* @return string The message.
*/
public static function switch_back_message( WP_User $user ): string {
$message = sprintf(
/* Translators: 1: user display name; 2: username; */
__( 'Switch back to %1$s (%2$s)', 'user-switching' ),
$user->display_name,
$user->user_login
);
// Removes the user login from this message without invalidating existing translations
return str_replace( sprintf(
' (%s)',
$user->user_login
), '', $message );
}
/**
* Returns the message shown to the user when they've switched back to their original user.
*
* @param WP_User $user The concerned user.
* @return string The message.
*/
public static function switched_back_message( WP_User $user ): string {
$message = sprintf(
/* Translators: 1: user display name; 2: username; */
__( 'Switched back to %1$s (%2$s).', 'user-switching' ),
$user->display_name,
$user->user_login
);
// Removes the user login from this message without invalidating existing translations
return str_replace( sprintf(
' (%s)',
$user->user_login
), '', $message );
}
/**
* Returns the current URL.
*
* @return string The current URL.
*/
public static function current_url(): string {
return ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
}
/**
* Removes a list of common confirmation-style query args from a URL.
*
* @param string $url A URL.
* @return string The URL with query args removed.
*/
public static function remove_query_args( $url ): string {
return remove_query_arg( wp_removable_query_args(), $url );
}
/**
* Returns whether User Switching's equivalent of the 'logged_in' cookie should be secure.
*
* This is used to set the 'secure' flag on the old user cookie, for enhanced security.
*
* @link https://core.trac.wordpress.org/ticket/15330
*
* @return bool Should the old user cookie be secure?
*/
public static function secure_olduser_cookie(): bool {
return ( is_ssl() && ( 'https' === wp_parse_url( home_url(), PHP_URL_SCHEME ) ) );
}
/**
* Returns whether User Switching's equivalent of the 'auth' cookie should be secure.
*
* This is used to determine whether to set a secure auth cookie.
*
* @return bool Whether the auth cookie should be secure.
*/
public static function secure_auth_cookie(): bool {
return ( is_ssl() && ( 'https' === wp_parse_url( wp_login_url(), PHP_URL_SCHEME ) ) );
}
/**
* Adds a 'Switch back to {user}' link to the WooCommerce login screen.
*/
public function action_woocommerce_login_form_start(): void {
// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
echo $this->filter_login_message( '' );
}
/**
* Adds a 'Switch To' link to the WooCommerce order screen.
*
* @param WC_Order $order The WooCommerce order object.
*/
public function action_woocommerce_order_details( WC_Order $order ): void {
$user = $order->get_user();
if ( ! $user || ! current_user_can( 'switch_to_user', $user->ID ) ) {
return;
}
$url = add_query_arg( [
'redirect_to' => rawurlencode( $order->get_view_order_url() ),
], self::switch_to_url( $user ) );
printf(
'<p class="form-field form-field-wide"><a href="%1$s">%2$s</a></p>',
esc_url( $url ),
esc_html__( 'Switch To', 'user-switching' )
);
}
/**
* Adds a 'Switch back to {user}' link to the My Account screen in WooCommerce.
*
* @param array<string, string> $items Menu items.
* @return array<string, string> Menu items.
*/
public function filter_woocommerce_account_menu_items( array $items ): array {
$old_user = self::get_old_user();
if ( ! $old_user ) {
return $items;
}
$items['user-switching-switch-back'] = self::switch_back_message( $old_user );
return $items;
}
/**
* Sets the URL of the 'Switch back to {user}' link in the My Account screen in WooCommerce.
*
* @param string $url The URL for the menu item.
* @param string $endpoint The endpoint slug for the menu item.
* @return string The URL for the menu item.
*/
public function filter_woocommerce_get_endpoint_url( string $url, string $endpoint ): string {
if ( 'user-switching-switch-back' !== $endpoint ) {
return $url;
}
$old_user = self::get_old_user();
if ( ! $old_user ) {
return $url;
}
return self::switch_back_url( $old_user );
}
/**
* Instructs WooCommerce to forget the session for the current user, without deleting it.
*/
public function forget_woocommerce_session(): void {
if ( ! function_exists( 'WC' ) ) {
return;
}
$wc = WC();
if ( ! property_exists( $wc, 'session' ) ) {
return;
}
if ( ! method_exists( $wc->session, 'forget_session' ) ) {
return;
}
$wc->session->forget_session();
}
/**
* Filters a user's capabilities so they can be altered at runtime.
*
* This is used to:
*
* - Grant the 'switch_to_user' capability to the user if they have the ability to edit the user they're trying to
* switch to (and that user is not themselves).
* - Grant the 'switch_off' capability to the user if they can edit other users.
*
* Important: This does not get called for Super Admins. See filter_map_meta_cap() below.
*
* @param array<string,bool> $user_caps Array of key/value pairs where keys represent a capability name and boolean values
* represent whether the user has that capability.
* @param array<int,string> $required_caps Array of required primitive capabilities for the requested capability.
* @param array<int,mixed> $args {
* Arguments that accompany the requested capability check.
*
* @type string $0 Requested capability.
* @type int $1 Concerned user ID.
* @type mixed ...$2 Optional second and further parameters.
* }
* @param WP_User $user Concerned user object.
* @return array<string,bool> Array of concerned user's capabilities.
*/
public function filter_user_has_cap( array $user_caps, array $required_caps, array $args, WP_User $user ): array {
if ( 'switch_to_user' === $args[0] ) {
if ( empty( $args[2] ) ) {
$user_caps['switch_to_user'] = false;
return $user_caps;
}
if ( array_key_exists( 'switch_users', $user_caps ) ) {
$user_caps['switch_to_user'] = $user_caps['switch_users'];
return $user_caps;
}
$user_caps['switch_to_user'] = ( user_can( $user->ID, 'edit_user', $args[2] ) && ( $args[2] !== $user->ID ) );
} elseif ( 'switch_off' === $args[0] ) {
if ( array_key_exists( 'switch_users', $user_caps ) ) {
$user_caps['switch_off'] = $user_caps['switch_users'];
return $user_caps;
}
$user_caps['switch_off'] = user_can( $user->ID, 'edit_users' );
}
return $user_caps;
}
/**
* Filters the required primitive capabilities for the given primitive or meta capability.
*
* This is used to:
*
* - Add the 'do_not_allow' capability to the list of required capabilities when a Super Admin is trying to switch
* to themselves.
*
* It affects nothing else as Super Admins can do everything by default.
*
* @param array<int,string> $required_caps Array of required primitive capabilities for the requested capability.
* @param string $cap Capability or meta capability being checked.
* @param int $user_id Concerned user ID.
* @param array<int,mixed> $args {
* Arguments that accompany the requested capability check.
*
* @type mixed ...$0 Optional second and further parameters.
* }
* @return array<int,string> Array of required capabilities for the requested action.
*/
public function filter_map_meta_cap( array $required_caps, $cap, $user_id, array $args ): array {
if ( 'switch_to_user' === $cap ) {
if ( empty( $args[0] ) || $args[0] === $user_id ) {
$required_caps[] = 'do_not_allow';
}
}
return $required_caps;
}
/**
* Singleton instantiator.
*
* @return user_switching User Switching instance.
*/
public static function get_instance(): user_switching {
static $instance;
if ( ! isset( $instance ) ) {
$instance = new user_switching();
}
return $instance;
}
/**
* Private class constructor. Use `get_instance()` to get the instance.
*/
private function __construct() {}
}
if ( ! function_exists( 'user_switching_set_olduser_cookie' ) ) {
/**
* Sets authorisation cookies containing the originating user information.
*
* @since 1.4.0 The `$token` parameter was added.
*
* @param int $old_user_id The ID of the originating user, usually the current logged in user.
* @param bool $pop Optional. Pop the latest user off the auth cookie, instead of appending the new one. Default false.
* @param string $token Optional. The old user's session token to store for later reuse. Default empty string.
*/
function user_switching_set_olduser_cookie( $old_user_id, bool $pop = false, string $token = '' ): void {
$secure_auth_cookie = user_switching::secure_auth_cookie();
$secure_olduser_cookie = user_switching::secure_olduser_cookie();
$expiration = time() + 172800; // 48 hours
$auth_cookie = user_switching_get_auth_cookie();
$olduser_cookie = wp_generate_auth_cookie( $old_user_id, $expiration, 'logged_in', $token );
if ( $secure_auth_cookie ) {
$auth_cookie_name = USER_SWITCHING_SECURE_COOKIE;
$scheme = 'secure_auth';
} else {
$auth_cookie_name = USER_SWITCHING_COOKIE;
$scheme = 'auth';
}
if ( $pop ) {
array_pop( $auth_cookie );
} else {
array_push( $auth_cookie, wp_generate_auth_cookie( $old_user_id, $expiration, $scheme, $token ) );
}
$auth_cookie = wp_json_encode( $auth_cookie );
if ( false === $auth_cookie ) {
return;
}
/**
* Fires immediately before the User Switching authentication cookie is set.
*
* @since 1.4.0
*
* @param string $auth_cookie JSON-encoded array of authentication cookie values.
* @param int $expiration The time when the authentication cookie expires as a UNIX timestamp.
* @param int $old_user_id User ID.
* @param string $scheme Authentication scheme. Values include 'auth' or 'secure_auth'.
* @param string $token User's session token to use for the latest cookie.
*/
do_action( 'set_user_switching_cookie', $auth_cookie, $expiration, $old_user_id, $scheme, $token );
$scheme = 'logged_in';
/**
* Fires immediately before the User Switching old user cookie is set.
*
* @since 1.4.0
*
* @param string $olduser_cookie The old user cookie value.
* @param int $expiration The time when the logged-in authentication cookie expires as a UNIX timestamp.
* @param int $old_user_id User ID.
* @param string $scheme Authentication scheme. Values include 'auth' or 'secure_auth'.
* @param string $token User's session token to use for this cookie.
*/
do_action( 'set_olduser_cookie', $olduser_cookie, $expiration, $old_user_id, $scheme, $token );
/**
* Allows preventing auth cookies from actually being sent to the client.
*
* @since 1.5.4
*
* @param bool $send Whether to send auth cookies to the client.
*/
if ( ! apply_filters( 'user_switching_send_auth_cookies', true ) ) {
return;
}
setcookie( $auth_cookie_name, $auth_cookie, $expiration, SITECOOKIEPATH, COOKIE_DOMAIN, $secure_auth_cookie, true );
setcookie( USER_SWITCHING_OLDUSER_COOKIE, $olduser_cookie, $expiration, COOKIEPATH, COOKIE_DOMAIN, $secure_olduser_cookie, true );
}
}
if ( ! function_exists( 'user_switching_clear_olduser_cookie' ) ) {
/**
* Clears the cookies containing the originating user, or pops the latest item off the end if there's more than one.
*
* @param bool $clear_all Optional. Whether to clear the cookies (as opposed to just popping the last user off the end). Default true.
*/
function user_switching_clear_olduser_cookie( bool $clear_all = true ): void {
$auth_cookie = user_switching_get_auth_cookie();
if ( ! empty( $auth_cookie ) ) {
array_pop( $auth_cookie );
}
if ( $clear_all || empty( $auth_cookie ) ) {
/**
* Fires just before the user switching cookies are cleared.
*
* @since 1.4.0
*/
do_action( 'clear_olduser_cookie' );
/** This filter is documented in user-switching.php */
if ( ! apply_filters( 'user_switching_send_auth_cookies', true ) ) {
return;
}
$expire = time() - 31536000;
setcookie( USER_SWITCHING_COOKIE, ' ', $expire, SITECOOKIEPATH, COOKIE_DOMAIN );
setcookie( USER_SWITCHING_SECURE_COOKIE, ' ', $expire, SITECOOKIEPATH, COOKIE_DOMAIN );
setcookie( USER_SWITCHING_OLDUSER_COOKIE, ' ', $expire, COOKIEPATH, COOKIE_DOMAIN );
} else {
if ( user_switching::secure_auth_cookie() ) {
$scheme = 'secure_auth';
} else {
$scheme = 'auth';
}
$old_cookie = end( $auth_cookie );
$old_user_id = wp_validate_auth_cookie( $old_cookie, $scheme );
if ( $old_user_id ) {
$parts = wp_parse_auth_cookie( $old_cookie, $scheme );
if ( false !== $parts ) {
user_switching_set_olduser_cookie( $old_user_id, true, $parts['token'] );
}
}
}
}
}
if ( ! function_exists( 'user_switching_get_olduser_cookie' ) ) {
/**
* Gets the value of the cookie containing the originating user.
*
* @return string|false The old user cookie, or boolean false if there isn't one.
*/
function user_switching_get_olduser_cookie() {
if ( isset( $_COOKIE[ USER_SWITCHING_OLDUSER_COOKIE ] ) ) {
return wp_unslash( $_COOKIE[ USER_SWITCHING_OLDUSER_COOKIE ] );
} else {
return false;
}
}
}
if ( ! function_exists( 'user_switching_get_auth_cookie' ) ) {
/**
* Gets the value of the auth cookie containing the list of originating users.
*
* @return array<int,string> Array of originating user authentication cookie values. Empty array if there are none.
*/
function user_switching_get_auth_cookie(): array {
if ( user_switching::secure_auth_cookie() ) {
$auth_cookie_name = USER_SWITCHING_SECURE_COOKIE;
} else {
$auth_cookie_name = USER_SWITCHING_COOKIE;
}
if ( isset( $_COOKIE[ $auth_cookie_name ] ) && is_string( $_COOKIE[ $auth_cookie_name ] ) ) {
$cookie = json_decode( wp_unslash( $_COOKIE[ $auth_cookie_name ] ) );
}
if ( ! isset( $cookie ) || ! is_array( $cookie ) ) {
$cookie = [];
}
return $cookie;
}
}
if ( ! function_exists( 'switch_to_user' ) ) {
/**
* Switches the current logged in user to the specified user.
*
* @param int $user_id The ID of the user to switch to.
* @param bool $remember Optional. Whether to 'remember' the user in the form of a persistent browser cookie. Default false.
* @param bool $set_old_user Optional. Whether to set the old user cookie. Default true.
* @return false|WP_User WP_User object on success, false on failure.
*/
function switch_to_user( $user_id, bool $remember = false, bool $set_old_user = true ) {
$user = get_userdata( $user_id );
if ( ! $user ) {
return false;
}
$old_user_id = ( is_user_logged_in() ) ? get_current_user_id() : false;
$old_token = wp_get_session_token();
$auth_cookies = user_switching_get_auth_cookie();
$auth_cookie = end( $auth_cookies );
$cookie_parts = $auth_cookie ? wp_parse_auth_cookie( $auth_cookie ) : false;
if ( $set_old_user && $old_user_id ) {
// Switching to another user
$new_token = '';
user_switching_set_olduser_cookie( $old_user_id, false, $old_token );
} else {
// Switching back, either after being switched off or after being switched to another user
$new_token = $cookie_parts['token'] ?? '';
user_switching_clear_olduser_cookie( false );
}
/**
* Attaches the original user ID and session token to the new session when a user switches to another user.
*
* @param array<string, mixed> $session Array of extra data.
* @return array<string, mixed> Array of extra data.
*/
$session_filter = static function ( array $session ) use ( $old_user_id, $old_token ): array {
$session['switched_from_id'] = $old_user_id;
$session['switched_from_session'] = $old_token;
return $session;
};
add_filter( 'attach_session_information', $session_filter, 99 );
wp_clear_auth_cookie();
wp_set_auth_cookie( $user_id, $remember, '', $new_token );
wp_set_current_user( $user_id );
remove_filter( 'attach_session_information', $session_filter, 99 );
if ( $set_old_user && $old_user_id ) {
/**
* Fires when a user switches to another user account.
*
* @since 0.6.0
* @since 1.4.0 The `$new_token` and `$old_token` parameters were added.
*
* @param int $user_id The ID of the user being switched to.
* @param int $old_user_id The ID of the user being switched from.
* @param string $new_token The token of the session of the user being switched to. Can be an empty string
* or a token for a session that may or may not still be valid.
* @param string $old_token The token of the session of the user being switched from.
*/
do_action( 'switch_to_user', $user_id, $old_user_id, $new_token, $old_token );
} else {
/**
* Fires when a user switches back to their originating account.
*
* @since 0.6.0
* @since 1.4.0 The `$new_token` and `$old_token` parameters were added.
*
* @param int $user_id The ID of the user being switched back to.
* @param int|false $old_user_id The ID of the user being switched from, or false if the user is switching back
* after having been switched off.
* @param string $new_token The token of the session of the user being switched to. Can be an empty string
* or a token for a session that may or may not still be valid.
* @param string $old_token The token of the session of the user being switched from.
*/
do_action( 'switch_back_user', $user_id, $old_user_id, $new_token, $old_token );
}
if ( $old_token && $old_user_id && ! $set_old_user ) {
// When switching back, destroy the session for the old user
$manager = WP_Session_Tokens::get_instance( $old_user_id );
$manager->destroy( $old_token );
}
return $user;
}
}
if ( ! function_exists( 'switch_off_user' ) ) {
/**
* Switches off the current logged in user. This logs the current user out while retaining a cookie allowing them to log
* straight back in using the 'Switch back to {user}' system.
*
* @return bool True on success, false on failure.
*/
function switch_off_user(): bool {
$old_user_id = get_current_user_id();
if ( ! $old_user_id ) {
return false;
}
$old_token = wp_get_session_token();
user_switching_set_olduser_cookie( $old_user_id, false, $old_token );
wp_clear_auth_cookie();
wp_set_current_user( 0 );
/**
* Fires when a user switches off.
*
* @since 0.6.0
* @since 1.4.0 The `$old_token` parameter was added.
*
* @param int $old_user_id The ID of the user switching off.
* @param string $old_token The token of the session of the user switching off.
*/
do_action( 'switch_off_user', $old_user_id, $old_token );
return true;
}
}
if ( ! function_exists( 'current_user_switched' ) ) {
/**
* Returns whether the current user switched into their account.
*
* @return false|WP_User False if the user isn't logged in or they didn't switch in; old user object (which evaluates to
* true) if the user switched into the current user account.
*/
function current_user_switched() {
if ( ! is_user_logged_in() ) {
return false;
}
return user_switching::get_old_user();
}
}
$GLOBALS['user_switching'] = user_switching::get_instance();
$GLOBALS['user_switching']->init_hooks();