| 1 |
<?php |
| 2 |
|
| 3 |
namespace FilterEverything\Filter; |
| 4 |
|
| 5 |
if ( ! defined('WPINC') ) { |
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wp_die(); |
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} |
| 8 |
|
| 9 |
class RequestParser |
| 10 |
{ |
| 11 |
private $request; |
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|
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private $queryVars = []; |
| 14 |
|
| 15 |
private $separator; |
| 16 |
|
| 17 |
public function __construct( $request ) |
| 18 |
{ |
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$this->setRequest( $request ); |
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$this->separator = FLRT_PREFIX_SEPARATOR; |
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} |
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|
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private function initQueryVars(){ |
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// Setup default $queryVars |
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$this->queryVars = array( |
| 26 |
'queried_values' => [], |
| 27 |
'segments_order' => [], |
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'wpc_logic_separators' => [], |
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'non_filter_segments' => [], |
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'error' => '', |
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); |
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} |
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|
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public function getQueryVars(){ |
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$this->initQueryVars(); |
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$this->parseRequest(); |
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$this->validateQueryVars(); |
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return $this->queryVars; |
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} |
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|
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private function isSlugInRequest( $slug ){ |
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return ( $this->isSlugInQuery( $slug ) || $this->isSlugInPath( $slug ) ); |
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} |
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|
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public function detectFilterRequest(){ |
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$em = Container::instance()->getEntityManager(); |
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foreach ( $em->getGlobalConfiguredSlugs() as $entity_slug ){ |
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if( $this->isSlugInRequest( $entity_slug ) ){ |
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return true; |
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} |
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} |
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return false; |
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} |
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|
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private function isSlugInPath( $entity_slug ){ |
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if( mb_strpos( '/' . $this->request, '/' . $entity_slug . $this->separator ) !== false ){ |
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return true; |
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} |
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return false; |
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} |
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|
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private function isSlugInQuery( $entity_slug ){ |
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if( |
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( $this->queryStringParam( 'max_' . $entity_slug ) !== false ) |
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|| |
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( $this->queryStringParam( 'min_' . $entity_slug ) !== false ) |
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|| |
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( $this->queryStringParam( $entity_slug ) !== false ) |
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){ |
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return true; |
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} |
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return false; |
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} |
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|
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/** |
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* Result always must be checked for !== false because 0 may be returned |
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* @param $key [max_{slug}|min_{slug}|{slug}] |
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* @return false|mixed |
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*/ |
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public function queryStringParam( $key ) |
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{ |
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$container = Container::instance(); |
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$get = $container->getTheGet(); |
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$post = $container->getThePost(); |
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|
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if( isset( $post['flrt_ajax_link'] ) ){ |
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$parts = parse_url( $post['flrt_ajax_link'] ); |
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|
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if( isset( $parts['query'] ) ){ |
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parse_str( $parts['query'], $output ); |
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if( isset( $output[$key] ) ){ |
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return $output[$key]; |
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} |
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} |
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|
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} |
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|
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if( isset( $get[$key] ) ){ |
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return $get[$key]; |
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} |
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|
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return false; |
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} |
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|
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private function extractValuesFromQuery( $slug ){ |
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$em = Container::instance()->getEntityManager(); |
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$filter = $em->getFilterBySlug( $slug, array( 'entity' ) ); |
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|
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$values = []; |
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// Matches numbers and decimal separator |
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$regexp = '/^([\-]?\d+(?:[\.\,]\d{1,})?)$/'; |
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|
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if( ( $this->queryStringParam( 'max_' . $slug ) !== false ) && $filter['entity'] === 'post_meta_num' ){ |
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preg_match($regexp, $this->queryStringParam( 'max_' . $slug ), $output); |
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$values['max'] = isset( $output[1] ) ? $output[1] : false; |
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} |
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|
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if( ( $this->queryStringParam( 'min_' . $slug ) !== false ) && $filter['entity'] === 'post_meta_num' ){ |
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preg_match($regexp, $this->queryStringParam( 'min_' . $slug ), $output); |
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$values['min'] = isset( $output[1] ) ? $output[1] : false; |
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} |
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|
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if( ( $this->queryStringParam( $slug ) !== false ) ){ |
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if( $filter['entity'] !== 'post_meta_num' ){ |
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$params = $this->queryStringParam( $slug ); |
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$values = $this->extractQueriedValuesFromQueryString( $params, $slug ); |
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}else{ |
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$values[] = $this->queryStringParam( $slug ); |
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} |
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|
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} |
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|
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unset($em); |
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|
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return $values; |
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} |
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|
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private function set_404( $message = '' ){ |
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$this->queryVars['error'] = '404'; |
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if( $message && FLRT_PLUGIN_DEBUG ){ |
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echo esc_html( $message ); |
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} |
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} |
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|
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public function getRequest(){ |
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return $this->request; |
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} |
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|
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public function setRequest( $request ){ |
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$this->request = urldecode( strtolower( trim( $request, '/' ) ) ); |
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} |
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|
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/** |
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* @return array |
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*/ |
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private function getPathSegments(){ |
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if( $this->request ){ |
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return explode('/', $this->request ); |
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} |
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return []; |
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} |
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|
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public function cleanUpRequestPathFromFilterSegments( $request_path ){ |
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|
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foreach( $this->getPathSegments() as $segment ){ |
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if( $this->checkSlugInSegmentForCleaningNativePath( $segment ) ){ |
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/** |
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*@improvement Maybe remove query_args also |
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*/ |
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$request_path = str_replace('/' . $segment, '', $request_path ); |
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} |
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} |
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|
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return $request_path; |
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} |
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|
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public function parseRequest(){ |
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/** |
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* @bug this method fires twice. |
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*/ |
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$pathSegments = $this->getPathSegments(); |
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$em = Container::instance()->getEntityManager(); |
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$fse = Container::instance()->getFilterService(); |
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// Path values |
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foreach( $pathSegments as $segment ){ |
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|
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if( $slug = $this->getSlugFromSegment( $segment ) ){ |
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$segmentParams = $this->cutParamsFromSegment( $segment, $slug ); |
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// List of entity, e_name, slug should be unique for all filters |
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$filter_entity = $em->getFilterBySlug( $slug, array('entity', 'e_name', 'slug', 'in_path') ); |
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|
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$filter_entity['values'] = $this->extractQueriedValuesFromSegment( $segmentParams, $slug ); |
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$filter_entity['founded_in_path'] = 'yes'; |
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$this->queryVars['queried_values'][$slug] = $filter_entity; |
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|
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$order_element = $fse->getEntityFullName( $filter_entity['entity'], $filter_entity['e_name'] ); |
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|
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$this->queryVars['segments_order'][] = $order_element; |
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} else { |
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$this->queryVars['non_filter_segments'][] = $segment; |
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} |
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} |
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|
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// Query string values |
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foreach( $em->getConfiguredQuerySlugs() as $slug ){ |
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|
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if( $this->isSlugInQuery( $slug ) ){ |
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$filter_entity = $em->getFilterBySlug( $slug, array('entity', 'e_name', 'slug', 'in_path') ); |
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$filter_entity['values'] = $this->extractValuesFromQuery( $slug ); |
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$filter_entity['founded_in_path'] = 'no'; |
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$this->queryVars['queried_values'][$slug] = $filter_entity; |
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} |
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} |
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|
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unset($em, $fse); |
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} |
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|
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private function checkSlugInSegmentForCleaningNativePath( $segment ){ |
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$em = Container::instance()->getEntityManager(); |
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foreach( $em->getConfiguredPathSlugs() as $key => $slug ){ |
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if( mb_strpos( $segment, $slug . $this->separator ) === 0 ){ |
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return $slug; |
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} |
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} |
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return false; |
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} |
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|
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private function getSlugFromSegment( $segment ){ |
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$em = Container::instance()->getEntityManager(); |
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foreach( $em->getConfiguredPathSlugs() as $key => $slug ){ |
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if( mb_strpos( $segment, $slug . $this->separator ) === 0 ){ |
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return $slug; |
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} |
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} |
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return false; |
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} |
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|
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private function cutParamsFromSegment( $segment, $slug ){ |
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return mb_substr( $segment, mb_strlen( $slug . $this->separator ) ); |
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} |
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|
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private function checkValuesOrder( $segmentParams, $sep ){ |
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$fse = Container::instance()->getFilterService(); |
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$terms = explode( $sep, $segmentParams ); |
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$terms = $fse->sortTerms($terms); |
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$sortedParams = implode( $sep, $terms ); |
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|
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if( $segmentParams !== $sortedParams ){ |
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return false; |
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} |
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|
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return true; |
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} |
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|
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/** |
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* @param string $segmentParams specially formatted sting like two#or#or-or-three#and |
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* @param array $filters filters arrays with logic value |
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*/ |
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private function extractLogicSeparator( $segmentParams, $filters ){ |
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$fse = Container::instance()->getFilterService(); |
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foreach( $filters as $filter ){ |
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$logicSeparator = $fse->getLogicSeparator( $filter ); // -or- | -and- |
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if( mb_strpos( $segmentParams, $logicSeparator ) !== false ){ |
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$this->queryVars['wpc_logic_separators'][$filter['slug']] = $filter['logic']; |
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return $logicSeparator; |
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} |
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} |
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|
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return false; |
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} |
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|
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private function extractQueriedValuesFromQueryString( $filterParams, $slug ){ |
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// $filterParams = accessories;tshirts |
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$em = Container::instance()->getEntityManager(); |
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$allEntityTerms = $em->getEntityAllTermsSlugs( $slug ); |
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$queriedValues = $em->safeExplodeFilterValues( $filterParams, $slug, FLRT_QUERY_TERMS_SEPARATOR ); |
| 277 |
$queriedValues = $em->safeImplodeFilterValues( $queriedValues, FLRT_QUERY_TERMS_SEPARATOR ); |
| 278 |
|
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foreach ( $queriedValues as $k => $value ) { |
| 280 |
if ( ! in_array($value, $allEntityTerms) ) { |
| 281 |
unset( $queriedValues[$k] ); |
| 282 |
$this->set_404( 'Term does not exist - ' . $value ); |
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} |
| 284 |
} |
| 285 |
|
| 286 |
// Check duplicates |
| 287 |
if( flrt_array_contains_duplicate( $queriedValues ) ){ |
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$this->set_404('Param duplicates'); |
| 289 |
$queriedValues = array_unique($queriedValues); |
| 290 |
} |
| 291 |
|
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unset( $em ); |
| 293 |
|
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return $queriedValues; |
| 295 |
} |
| 296 |
|
| 297 |
/** |
| 298 |
* @param string $segmentParams |
| 299 |
* @param string $slug |
| 300 |
* @return false|array |
| 301 |
*/ |
| 302 |
private function extractQueriedValuesFromSegment( $segmentParams, $slug ){ |
| 303 |
|
| 304 |
$em = Container::instance()->getEntityManager(); |
| 305 |
$allEntityTerms = $em->getEntityAllTermsSlugs( $slug ); |
| 306 |
$filters = $em->getAllFiltersBySlug( $slug, array('logic', 'slug') ); |
| 307 |
|
| 308 |
$segmentParams = $em->safeExplodeFilterValues( $segmentParams, $slug, $this->separator, false ); |
| 309 |
$logicSeparator = $this->extractLogicSeparator( $segmentParams, $filters ); |
| 310 |
|
| 311 |
// $segmentParams = two#or#or-or-three#and |
| 312 |
// $valueSeparator = '-or-' |
| 313 |
if( $logicSeparator ) { |
| 314 |
|
| 315 |
$queriedValues = explode( $logicSeparator, $segmentParams ); |
| 316 |
|
| 317 |
if ( ! $this->checkValuesOrder($segmentParams, $logicSeparator) ) { |
| 318 |
/** |
| 319 |
* @feature maybe redirect to URL with correct order of values |
| 320 |
*/ |
| 321 |
$this->set_404('Invalid params order'); |
| 322 |
} |
| 323 |
}else{ |
| 324 |
$queriedValues[0] = $segmentParams; |
| 325 |
} |
| 326 |
|
| 327 |
$queriedValues = $em->safeImplodeFilterValues( $queriedValues, $this->separator ); |
| 328 |
|
| 329 |
foreach ( $queriedValues as $k => $value ) { |
| 330 |
if ( ! in_array( $value, $allEntityTerms) ) { |
| 331 |
unset( $queriedValues[$k] ); |
| 332 |
$this->set_404( 'Term does not exist - ' . $value ); |
| 333 |
} |
| 334 |
} |
| 335 |
|
| 336 |
// Check duplicates |
| 337 |
if( flrt_array_contains_duplicate( $queriedValues ) ){ |
| 338 |
$this->set_404('Param duplicates'); |
| 339 |
$queriedValues = array_unique($queriedValues); |
| 340 |
} |
| 341 |
|
| 342 |
unset($em); |
| 343 |
|
| 344 |
return $queriedValues; |
| 345 |
} |
| 346 |
|
| 347 |
private function validateSegmentsOrder( $template = [] ){ |
| 348 |
$fse = Container::instance()->getFilterService(); |
| 349 |
|
| 350 |
if( ! $template ){ |
| 351 |
$template = $fse->getFiltersOrder(); |
| 352 |
} |
| 353 |
|
| 354 |
$to_compare = $this->queryVars['segments_order']; |
| 355 |
|
| 356 |
if( flrt_array_contains_duplicate( $to_compare ) ){ |
| 357 |
return false; |
| 358 |
} |
| 359 |
|
| 360 |
if( ! is_array( $template ) || ! is_array( $to_compare ) ){ |
| 361 |
return false; |
| 362 |
} |
| 363 |
|
| 364 |
$new_template = array_intersect( $template, $to_compare ); |
| 365 |
|
| 366 |
if( empty( $new_template ) ){ |
| 367 |
return false; |
| 368 |
} |
| 369 |
|
| 370 |
$new_template = array_values( $new_template ); |
| 371 |
$already_compared = []; |
| 372 |
$i = 0; |
| 373 |
|
| 374 |
foreach ( $to_compare as $index => $value ) { |
| 375 |
if( in_array( $value, $already_compared ) ){ |
| 376 |
$existing_index = array_search( $value, $already_compared ); |
| 377 |
$existing_index++; |
| 378 |
if( isset( $already_compared[$existing_index] ) ){ |
| 379 |
return false; |
| 380 |
} |
| 381 |
} |
| 382 |
|
| 383 |
if( $value === $new_template[$i] ){ |
| 384 |
$i++; |
| 385 |
$already_compared[] = $value; |
| 386 |
} |
| 387 |
} |
| 388 |
|
| 389 |
unset( $fse ); |
| 390 |
|
| 391 |
return ( $new_template === $already_compared ); |
| 392 |
|
| 393 |
} |
| 394 |
|
| 395 |
private function validateQueryVars(){ |
| 396 |
// Check for segments duplicates |
| 397 |
$maybe_duplicates = []; |
| 398 |
$fse = Container::instance()->getFilterService(); |
| 399 |
|
| 400 |
if( ! empty( $this->queryVars['queried_values'] ) ){ |
| 401 |
foreach( $this->queryVars['queried_values'] as $filter ){ |
| 402 |
$maybe_duplicates[] = $fse->getEntityFullName( $filter['entity'], $filter['e_name'] ); |
| 403 |
} |
| 404 |
|
| 405 |
if( flrt_array_contains_duplicate( $maybe_duplicates ) ){ |
| 406 |
$this->set_404( 'Segment duplicates' ); |
| 407 |
} |
| 408 |
} |
| 409 |
|
| 410 |
// Check segments order |
| 411 |
if( ! empty( $this->queryVars['segments_order'] ) ) { |
| 412 |
if (!$this->validateSegmentsOrder()) { |
| 413 |
$this->set_404('Invalid segments order'); |
| 414 |
} |
| 415 |
} |
| 416 |
|
| 417 |
unset( $fse ); |
| 418 |
// Check something other |
| 419 |
// If max < than min maybe should be an error |
| 420 |
} |
| 421 |
} |
