Your IP : 18.191.120.103
<?php
/**
* Intercept
*
* @package WP Grid Builder
* @author Loïc Blascos
* @copyright 2019-2023 Loïc Blascos
*/
namespace WP_Grid_Builder\FrontEnd;
// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Intercept request to filter custom content
*
* @class WP_Grid_Builder\FrontEnd\Intercept
* @since 1.5.1
*/
final class Intercept {
/**
* Requested data
*
* @since 1.5.1
* @access protected
*
* @var array
*/
protected $request = [];
/**
* Action type
*
* @since 1.5.1
* @access protected
*
* @var string
*/
protected $action = '';
/**
* Content identifier
*
* @since 1.5.1
* @access protected
*
* @var string
*/
protected $content = '';
/**
* Content interceptor
*
* @since 1.5.1
* @access protected
*
* @var string
*/
protected $interceptor = 'wpgb-content';
/**
* Next query identifier
*
* @since 1.5.1
* @access protected
*
* @var string
*/
protected $next_query_id = '';
/**
* Output buffering start level
*
* @since 1.8.1
* @access protected
*
* @var integer
*/
protected $ob_start_level = 0;
/**
* Constructor
*
* @since 1.5.1
* @access public
*/
public function __construct() {
add_filter( 'wp_grid_builder/async/intercept', [ $this, 'intercept' ], 10, 3 );
add_filter( 'wp_grid_builder/facet/render_args', [ $this, 'content_name' ] );
add_filter( 'wp_grid_builder/facet/transient_name', [ $this, 'transient_name' ] );
add_filter( 'render_block_core/shortcode', [ $this, 'prerender_query_shortcode' ] );
add_shortcode( 'wpgb_query', [ $this, 'next_query_id' ] );
add_action( 'pre_get_posts', [ $this, 'check_query_id' ], PHP_INT_MAX - 9 );
if ( wpgb_get_option( 'filter_custom_content' ) ) {
add_action( 'loop_no_results', [ $this, 'inject' ] );
add_action( 'loop_start', [ $this, 'inject' ] );
}
}
/**
* Maybe intercept request
*
* @since 1.5.1
* @access public
*
* @param boolean $intercept Whether to intercept requested.
* @param string $action Requested action.
* @param array $request Requested data.
* @return boolean
*/
public function intercept( $intercept, $action, $request ) {
if ( empty( $request['id'] ) || 0 !== stripos( $request['id'], $this->interceptor ) ) {
return $intercept;
}
$this->action = $action;
$this->request = $request;
$this->content = $request['id'];
do_action( 'wp_grid_builder/async/' . $action, $this->request );
add_action( 'shutdown', [ $this, 'filter' ], -1 );
ob_start();
$this->ob_start_level = ob_get_level();
return true;
}
/**
* Format content/grid name for consistency
* Prevent duplication of jS instances if name is inconsistent.
*
* @since 1.5.1
* @access public
*
* @param array $args Facet paramters.
* @return array
*/
public function content_name( $args ) {
if ( 0 === stripos( trim( $args['grid'] ), $this->interceptor ) ) {
$args['grid'] = strtolower( trim( $args['grid'] ) );
}
return $args;
}
/**
* Change transient name to correctly cache content depending on the page
*
* @since 1.5.1
* @access public
*
* @param string $transient Facet transient name.
* @return string
*/
public function transient_name( $transient ) {
if ( false !== stripos( $transient, 'g' . $this->interceptor ) ) {
$transient .= md5( preg_replace( '/\?.*/', '', get_pagenum_link() ) );
}
return $transient;
}
/**
* Prerender shortcode block to correctly detect custom queries in the block editor.
* Shortcodes are rendered after all blocks. So we have to render shortcodes when rendering each block.
*
* @since 1.6.8
* @access public
*
* @param string $block_content The block content about to be appended.
* @return string
*/
public function prerender_query_shortcode( $block_content ) {
if ( preg_match( '/\[wpgb_query.*?\]/m', $block_content ) ) {
$block_content = do_shortcode( $block_content );
}
return $block_content;
}
/**
* Setup query ID for the next WP_Query
*
* @since 1.5.1
* @access public
*
* @param array $atts Shortcode attributes.
*/
public function next_query_id( $atts ) {
$this->next_query_id = 'wpgb-content';
if ( empty( $atts['id'] ) ) {
return;
}
$query_id = trim( $atts['id'] );
if ( 0 === stripos( $query_id, $this->interceptor ) ) {
$this->next_query_id = strtolower( $atts['id'] );
}
}
/**
* Check if it is a filterable query from page content
*
* @since 1.5.1
* @access public
*
* @param object $query Holds WP query object.
*/
public function check_query_id( $query ) {
$this->set_query_id( $query );
$query_id = $query->get( 'wp_grid_builder' );
$is_archive = $this->is_archive( $query_id );
if ( ! $is_archive && ! $this->is_custom( $query_id ) ) {
$this->unset_query_id( $query );
return;
}
$query->set( 'wpgb_inject', $is_archive ? $this->interceptor : $query_id );
}
/**
* Add query ID setup from shortcode [wpgb_query]
*
* @since 1.5.1
* @access public
*
* @param object $query Holds WP query object.
*/
public function set_query_id( $query ) {
if ( empty( $this->next_query_id ) ) {
return;
}
$query->set( 'wp_grid_builder', $this->next_query_id );
$this->next_query_id = '';
}
/**
* Unset query ID that does not need to be filtered
*
* @since 1.5.1
* @access public
*
* @param object $query Holds WP query object.
*/
public function unset_query_id( $query ) {
if ( ! wpgb_doing_ajax() || empty( $this->request ) ) {
return;
}
// Optimize query that does not need to be filtered.
if ( $query->get( 'wp_grid_builder' ) ) {
$query->set( 'posts_per_page', 1 );
$query->set( 'no_found_rows', 1 );
$query->set( 'meta_query', [] );
$query->set( 'tax_query', [] );
$query->set( 'post__in', [] );
}
// Unset query to prevent conflicts with multiple content.
$query->set( 'wp_grid_builder', false );
}
/**
* Whether it is an archive query
*
* @since 1.5.1
* @access public
*
* @param boolean|string $query_id Query identifier.
*/
public function is_archive( $query_id ) {
return true === $query_id || 'true' === $query_id;
}
/**
* Whether it is a custom query
*
* @since 1.5.1
* @access public
*
* @param boolean|string $query_id Query identifier.
*/
public function is_custom( $query_id ) {
$query_id = strtolower( trim( $query_id ) );
return (
( ! empty( $this->request ) && $query_id === $this->content ) ||
( empty( $this->request ) && 0 === strpos( $query_id, $this->interceptor ) )
);
}
/**
* Inject hidden placeholder in the page
*
* @since 1.5.1
* @access public
*
* @param object $query Holds WP query object.
*/
public function inject( $query ) {
if ( ! $query->get( 'wpgb_inject' ) ) {
return;
}
// We only inject in 3rd party content from the body.
if ( ! did_action( 'wp_head' ) || doing_action( 'wp_grid_builder/layout/do_loop' ) ) {
return;
}
echo '<div class="' . sanitize_html_class( strtolower( $query->get( 'wpgb_inject' ) ) ) . '" hidden></div>';
$query->set( 'wpgb_inject', false );
}
/**
* Clean all output buffers
*
* @since 1.8.1
* @access public
*/
public function clean_output() {
$levels = ob_get_level();
for ( $i = 0; $i < $levels; $i++ ) {
ob_end_clean();
}
}
/**
* Fetch page content before to shutdown
*
* @since 1.5.1
* @access public
*/
public function fetch() {
$content = '';
while ( ob_get_level() > $this->ob_start_level ) {
ob_end_flush();
}
preg_match( '/<body.*\/body>/s', ob_get_clean(), $body );
$this->clean_output();
if ( ! empty( $body ) ) {
$content = trim( current( $body ) );
}
return $content;
}
/**
* Filter page content
*
* @since 1.5.1
* @access public
*/
public function filter() {
switch ( $this->action ) {
case 'render':
$this->render();
break;
case 'refresh':
$this->refresh();
break;
case 'search':
$this->search();
break;
}
wp_die();
}
/**
* Render facets on first load
*
* @since 1.5.1
* @access protected
*/
protected function render() {
$this->clean_output();
wp_send_json(
apply_filters(
'wp_grid_builder/async/render_response',
[
'facets' => wpgb_refresh_facets( $this->request ),
],
$this->request
)
);
}
/**
* Refresh facets and content
*
* @since 1.5.1
* @access protected
*/
protected function refresh() {
wp_send_json(
apply_filters(
'wp_grid_builder/async/refresh_response',
[
'facets' => wpgb_refresh_facets( $this->request ),
'posts' => $this->fetch(),
],
$this->request
)
);
}
/**
* Search for facet choices
*
* @since 1.5.1
* @access protected
*/
protected function search() {
$this->clean_output();
wp_send_json(
apply_filters(
'wp_grid_builder/async/search_response',
wpgb_search_facet_choices( $this->request ),
$this->request
)
);
}
}