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<?php
/**
* Contains the query functions for UserRegistration which alter the front-end post queries and loops
*
* @version 1.0.0
* @package UserRegistration\Classes
*/
defined( 'ABSPATH' ) || exit;
/**
* UR_Query Class.
*/
class UR_Query {
/**
* Query vars to add to wp.
*
* @var array
*/
public $query_vars = array();
/**
* Constructor for the query class. Hooks in methods.
*/
public function __construct() {
add_action( 'init', array( $this, 'add_endpoints' ) );
if ( ! is_admin() ) {
add_action( 'wp_loaded', array( $this, 'get_errors' ), 20 );
add_filter( 'query_vars', array( $this, 'add_query_vars' ), 0 );
add_action( 'parse_request', array( $this, 'parse_request' ), 0 );
add_action( 'pre_get_posts', array( $this, 'pre_get_posts' ) );
add_action( 'wp', array( $this, 'remove_post_query' ) );
}
$this->init_query_vars();
}
/**
* Get any errors from querystring.
*/
public function get_errors() {
$error = ! empty( $_GET['ur_error'] ) ? sanitize_text_field( wp_unslash( $_GET['ur_error'] ) ) : ''; // WPCS: input var ok, CSRF ok.
if ( $error && ! ur_has_notice( $error, 'error' ) ) {
ur_add_notice( $error, 'error' );
}
}
/**
* Init query vars by loading options.
*/
public function init_query_vars() {
// Query vars to add to WP.
$this->query_vars = array(
// My account actions.
'edit-password' => get_option( 'user_registration_myaccount_change_password_endpoint', 'edit-password' ),
'edit-profile' => get_option( 'user_registration_myaccount_edit_profile_endpoint', 'edit-profile' ),
'ur-lost-password' => get_option( 'user_registration_myaccount_lost_password_endpoint', 'lost-password' ),
'user-logout' => get_option( 'user_registration_logout_endpoint', 'user-logout' ),
);
}
/**
* Get page title for an endpoint.
*
* @param string $endpoint Endpoint key.
* @return string
*/
public function get_endpoint_title( $endpoint ) {
switch ( $endpoint ) {
case 'edit-password':
$title = __( 'Change Password', 'user-registration' );
break;
case 'edit-profile':
$title = __( 'Profile Details', 'user-registration' );
break;
case 'ur-lost-password':
$title = __( 'Lost password', 'user-registration' );
break;
default:
$title = '';
break;
}
return apply_filters( 'user_registration_endpoint_' . $endpoint . '_title', $title, $endpoint );
}
/**
* Endpoint mask describing the places the endpoint should be added.
*
* @return int
*/
public function get_endpoints_mask() {
if ( 'page' === get_option( 'show_on_front' ) ) {
$page_on_front = get_option( 'page_on_front' );
$myaccount_page_id = get_option( 'user_registration_myaccount_page_id' );
if ( in_array( $page_on_front, array( $myaccount_page_id ), true ) ) {
return EP_ROOT | EP_PAGES;
}
}
return EP_PAGES;
}
/**
* Add endpoints for query vars.
*/
public function add_endpoints() {
$mask = $this->get_endpoints_mask();
foreach ( $this->query_vars as $key => $var ) {
if ( ! empty( $var ) ) {
add_rewrite_endpoint( $var, $mask );
}
}
}
/**
* Add query vars.
*
* @param array $vars Query vars.
* @return array
*/
public function add_query_vars( $vars ) {
foreach ( $this->get_query_vars() as $key => $var ) {
$vars[] = $key;
}
return $vars;
}
/**
* Get query vars.
*
* @return array
*/
public function get_query_vars() {
return apply_filters( 'user_registration_get_query_vars', $this->query_vars );
}
/**
* Get query current active query var.
*
* @return string
*/
public function get_current_endpoint() {
global $wp;
foreach ( $this->get_query_vars() as $key => $value ) {
if ( isset( $wp->query_vars[ $key ] ) ) {
return $key;
}
}
return '';
}
/**
* Parse the request and look for query vars - endpoints may not be supported.
*/
public function parse_request() {
global $wp;
// Map query vars to their keys, or get them if endpoints are not supported.
foreach ( $this->get_query_vars() as $key => $var ) {
if ( isset( $_GET[ $var ] ) ) { // WPCS: input var ok, CSRF ok.
$wp->query_vars[ $key ] = sanitize_text_field( wp_unslash( $_GET[ $var ] ) ); // WPCS: input var ok, CSRF ok.
} elseif ( isset( $wp->query_vars[ $var ] ) ) {
$wp->query_vars[ $key ] = $wp->query_vars[ $var ];
}
}
}
/**
* Are we currently on the front page?
*
* @param WP_Query $q Query instance.
* @return bool
*/
private function is_showing_page_on_front( $q ) {
return $q->is_home() && 'page' === get_option( 'show_on_front' );
}
/**
* Is the front page a page we define?
*
* @param int $page_id Page ID.
* @return bool
*/
private function page_on_front_is( $page_id ) {
return absint( get_option( 'page_on_front' ) ) === absint( $page_id );
}
/**
* Hook into pre_get_posts to do the main query.
*
* @param WP_Query $q Query instance.
*/
public function pre_get_posts( $q ) {
// We only want to affect the main query.
if ( ! $q->is_main_query() ) {
return;
}
// Fix for endpoints on the homepage.
if ( $this->is_showing_page_on_front( $q ) && ! $this->page_on_front_is( $q->get( 'page_id' ) ) ) {
$_query = wp_parse_args( $q->query );
if ( ! empty( $_query ) && array_intersect( array_keys( $_query ), array_keys( $this->query_vars ) ) ) {
$q->is_page = true;
$q->is_home = false;
$q->is_singular = true;
$q->set( 'page_id', (int) get_option( 'page_on_front' ) );
add_filter( 'redirect_canonical', '__return_false' );
}
}
// And remove the pre_get_posts hook.
$this->remove_post_query();
}
/**
* Remove the query.
*/
public function remove_post_query() {
remove_action( 'pre_get_posts', array( $this, 'pre_get_posts' ) );
}
}
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