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user-switching.php
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user-switching.php
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<?php
/**
* User Switching plugin for WordPress
*
* @package user-switching
* @link https://github.com/johnbillion/user-switching
* @author John Blackbourn <[email protected]>
* @copyright 2009-2022 John Blackbourn
* @license GPL v2 or later
*
* Plugin Name: User Switching
* Description: Instant switching between user accounts in WordPress
* Version: 1.7.0
* Plugin URI: https://wordpress.org/plugins/user-switching/
* Author: John Blackbourn & contributors
* Author URI: https://github.com/johnbillion/user-switching/graphs/contributors
* Text Domain: user-switching
* Domain Path: /languages/
* Network: true
* Requires PHP: 5.3
*
* 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.
*/
class user_switching {
/**
* The name used to identify the application during a WordPress redirect.
*
* @var string
*/
public static $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.
*
* @return void
*/
public function init_hooks() {
// Required functionality:
add_filter( 'user_has_cap', array( $this, 'filter_user_has_cap' ), 10, 4 );
add_filter( 'map_meta_cap', array( $this, 'filter_map_meta_cap' ), 10, 4 );
add_filter( 'user_row_actions', array( $this, 'filter_user_row_actions' ), 10, 2 );
add_action( 'plugins_loaded', array( $this, 'action_plugins_loaded' ), 1 );
add_action( 'init', array( $this, 'action_init' ) );
add_action( 'all_admin_notices', array( $this, 'action_admin_notices' ), 1 );
add_action( 'wp_logout', 'user_switching_clear_olduser_cookie' );
add_action( 'wp_login', 'user_switching_clear_olduser_cookie' );
// Nice-to-haves:
add_filter( 'ms_user_row_actions', array( $this, 'filter_user_row_actions' ), 10, 2 );
add_filter( 'login_message', array( $this, 'filter_login_message' ), 1 );
add_filter( 'removable_query_args', array( $this, 'filter_removable_query_args' ) );
add_action( 'wp_meta', array( $this, 'action_wp_meta' ) );
add_filter( 'plugin_row_meta', array( $this, 'filter_plugin_row_meta' ), 10, 2 );
add_action( 'wp_footer', array( $this, 'action_wp_footer' ) );
add_action( 'personal_options', array( $this, 'action_personal_options' ) );
add_action( 'admin_bar_menu', array( $this, 'action_admin_bar_menu' ), 11 );
add_action( 'bp_member_header_actions', array( $this, 'action_bp_button' ), 11 );
add_action( 'bp_directory_members_actions', array( $this, 'action_bp_button' ), 11 );
add_action( 'bbp_template_after_user_details_menu_items', array( $this, 'action_bbpress_button' ) );
add_action( 'woocommerce_login_form_start', array( $this, 'action_woocommerce_login_form_start' ), 10, 0 );
add_action( 'woocommerce_admin_order_data_after_order_details', array( $this, 'action_woocommerce_order_details' ), 1 );
add_filter( 'woocommerce_account_menu_items', array( $this, 'filter_woocommerce_account_menu_items' ), 999 );
add_filter( 'woocommerce_get_endpoint_url', array( $this, 'filter_woocommerce_get_endpoint_url' ), 10, 2 );
add_action( 'switch_to_user', array( $this, 'forget_woocommerce_session' ) );
add_action( 'switch_back_user', array( $this, 'forget_woocommerce_session' ) );
}
/**
* Defines the names of the cookies used by User Switching.
*
* @return void
*/
public function action_plugins_loaded() {
// 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.
* @return void
*/
public function action_personal_options( WP_User $user ) {
$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" 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() {
/** 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.
*
* @return void
*/
public function action_init() {
load_plugin_textdomain( 'user-switching', false, dirname( plugin_basename( __FILE__ ) ) . '/languages' );
if ( ! isset( $_REQUEST['action'] ) ) {
return;
}
$current_user = ( is_user_logged_in() ) ? wp_get_current_user() : null;
switch ( $_REQUEST['action'] ) {
// We're attempting to switch to another user:
case 'switch_to_user':
if ( isset( $_REQUEST['user_id'] ) ) {
$user_id = absint( $_REQUEST['user_id'] );
} else {
$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}" );
// Switch user:
$user = switch_to_user( $user_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 = array(
'user_switched' => 'true',
);
if ( $redirect_to ) {
wp_safe_redirect( add_query_arg( $args, $redirect_to ), 302, self::$application );
} elseif ( ! current_user_can( 'read' ) ) {
wp_safe_redirect( add_query_arg( $args, home_url() ), 302, self::$application );
} else {
wp_safe_redirect( add_query_arg( $args, admin_url() ), 302, self::$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}" );
// Switch user:
if ( switch_to_user( $old_user->ID, self::remember(), false ) ) {
if ( ! empty( $_REQUEST['interim-login'] ) && function_exists( 'login_header' ) ) {
$GLOBALS['interim_login'] = 'success'; // @codingStandardsIgnoreLine
login_header( '', '' );
exit;
}
$redirect_to = self::get_redirect( $old_user, $current_user );
$args = array(
'user_switched' => 'true',
'switched_back' => 'true',
);
if ( $redirect_to ) {
wp_safe_redirect( add_query_arg( $args, $redirect_to ), 302, self::$application );
} else {
wp_safe_redirect( add_query_arg( $args, admin_url( 'users.php' ) ), 302, self::$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 ( ! $current_user || ! current_user_can( 'switch_off' ) ) {
/* Translators: "switch off" means to temporarily log out */
wp_die( esc_html__( 'Could not switch off.', 'user-switching' ), 403 );
}
// Check intent:
check_admin_referer( "switch_off_{$current_user->ID}" );
// Switch off:
if ( switch_off_user() ) {
$redirect_to = self::get_redirect( null, $current_user );
$args = array(
'switched_off' => 'true',
);
if ( $redirect_to ) {
wp_safe_redirect( add_query_arg( $args, $redirect_to ), 302, self::$application );
} else {
wp_safe_redirect( add_query_arg( $args, home_url() ), 302, self::$application );
}
exit;
} else {
/* Translators: "switch off" means to temporarily log out */
wp_die( esc_html__( 'Could not switch off.', 'user-switching' ), 403 );
}
break;
}
}
/**
* 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 ) {
$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 ( function_exists( 'is_post_publicly_viewable' ) && 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 ) && function_exists( 'is_taxonomy_viewable' ) && 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 ( function_exists( 'is_post_publicly_viewable' ) && 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.
*
* @return void
*/
public function action_admin_notices() {
$user = wp_get_current_user();
$old_user = self::get_old_user();
if ( $old_user ) {
$switched_locale = false;
$lang_attr = '';
if ( function_exists( 'get_user_locale' ) ) {
$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( array(
'redirect_to' => urlencode( 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, array(
'a' => array(
'href' => array(),
),
) );
?>
</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 ) {
$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.
* @return void
*/
public function action_admin_bar_menu( WP_Admin_Bar $wp_admin_bar ) {
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( array(
'parent' => $parent,
'id' => 'switch-back',
'title' => esc_html( self::switch_back_message( $old_user ) ),
'href' => add_query_arg( array(
'redirect_to' => urlencode( self::current_url() ),
), self::switch_back_url( $old_user ) ),
) );
}
if ( current_user_can( 'switch_off' ) ) {
$url = self::switch_off_url( wp_get_current_user() );
$redirect_to = is_admin() ? self::get_admin_redirect_to() : array(
'redirect_to' => urlencode( self::current_url() ),
);
if ( is_array( $redirect_to ) ) {
$url = add_query_arg( $redirect_to, $url );
}
$wp_admin_bar->add_node( array(
'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( array(
'parent' => 'edit',
'id' => 'author-switch-back',
'title' => esc_html( self::switch_back_message( $old_user ) ),
'href' => add_query_arg( array(
'redirect_to' => urlencode( 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( array(
'parent' => 'edit',
'id' => 'author-switch-to',
'title' => esc_html__( 'Switch To', 'user-switching' ),
'href' => add_query_arg( array(
'redirect_to' => urlencode( self::current_url() ),
), self::switch_to_url( get_queried_object() ) ),
) );
}
}
}
/**
* 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() {
if ( ! empty( $_GET['post'] ) ) {
// Post
return array(
'redirect_to_post' => intval( $_GET['post'] ),
);
} elseif ( ! empty( $_GET['tag_ID'] ) ) {
// Term
return array(
'redirect_to_term' => intval( $_GET['tag_ID'] ),
);
} elseif ( ! empty( $_GET['user_id'] ) ) {
// User
return array(
'redirect_to_user' => intval( $_GET['user_id'] ),
);
} elseif ( ! empty( $_GET['c'] ) ) {
// Comment
return array(
'redirect_to_comment' => intval( $_GET['c'] ),
);
}
return null;
}
/**
* Adds a 'Switch back to {user}' link to the Meta sidebar widget.
*
* @return void
*/
public function action_wp_meta() {
$old_user = self::get_old_user();
if ( $old_user instanceof WP_User ) {
$url = add_query_arg( array(
'redirect_to' => urlencode( 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.
*
* @return void
*/
public function action_wp_footer() {
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( array(
'redirect_to' => urlencode( self::current_url() ),
), self::switch_back_url( $old_user ) );
printf(
'<p id="user_switching_switch_on" style="position:fixed;bottom:40px;padding:0;margin:0;left:10px;font-size:13px;z-index:99999;"><a href="%s">%s</a></p>',
esc_url( $url ),
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( $message ) {
$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( array(
'interim-login' => '1',
), $url );
} elseif ( ! empty( $_REQUEST['redirect_to'] ) ) {
$url = add_query_arg( array(
'redirect_to' => urlencode( 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 ) {
$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.
*
* @return void
*/
public function action_bp_button() {
$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;
}
$link = add_query_arg( array(
'redirect_to' => urlencode( bp_core_get_user_domain( $user->ID ) ),
), $link );
$components = array_keys( buddypress()->active_components );
echo bp_get_button( array(
'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.
*
* @return void
*/
public function action_bbpress_button() {
$user = get_userdata( bbp_get_user_id() );
if ( ! $user ) {
return;
}
$link = self::maybe_switch_url( $user );
if ( ! $link ) {
return;
}
$link = add_query_arg( array(
'redirect_to' => urlencode( 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 ) {
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 ) {
return array_merge( $args, array(
'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 ) {
return wp_nonce_url( add_query_arg( array(
'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 $user ) {
return wp_nonce_url( add_query_arg( array(
'action' => 'switch_to_olduser',
'nr' => 1,
), wp_login_url() ), "switch_to_olduser_{$user->ID}" );
}
/**
* Returns the nonce-secured URL needed to switch off the current user.
*
* @param WP_User $user The user to be switched off.
* @return string The required URL.
*/
public static function switch_off_url( WP_User $user ) {
return wp_nonce_url( add_query_arg( array(
'action' => 'switch_off',
'nr' => 1,
), wp_login_url() ), "switch_off_{$user->ID}" );
}
/**
* 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 ) {
$message = sprintf(
/* Translators: 1: user display name; 2: username; */
__( 'Switched to %1$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 ) {
$message = sprintf(
/* Translators: 1: user display name; 2: username; */
__( 'Switch back to %1$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 ) {
$message = sprintf(
/* Translators: 1: user display name; 2: username; */
__( 'Switched back to %1$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() {
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 ) {
if ( function_exists( 'wp_removable_query_args' ) ) {
$url = remove_query_arg( wp_removable_query_args(), $url );
}
return $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?