| 1 |
<?php |
| 2 |
/** |
| 3 |
* @package Polylang |
| 4 |
*/ |
| 5 |
|
| 6 |
/** |
| 7 |
* Setup filters common to admin and frontend |
| 8 |
* |
| 9 |
* @since 1.4 |
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*/ |
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class PLL_Filters { |
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/** |
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* Stores the plugin options. |
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* |
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* @var \WP_Syntex\Polylang\Options\Options |
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*/ |
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public $options; |
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|
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/** |
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* @var PLL_Model |
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*/ |
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public $model; |
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|
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/** |
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* Instance of a child class of PLL_Links_Model. |
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* |
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* @var PLL_Links_Model |
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*/ |
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public $links_model; |
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|
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/** |
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* Current language. |
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* |
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* @var PLL_Language|null |
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*/ |
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public $curlang; |
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|
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/** |
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* Constructor: setups filters |
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* |
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* @since 1.4 |
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* |
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* @param PLL_Base $polylang The Polylang object. |
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* @param-out PLL_Base $polylang |
| 45 |
*/ |
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public function __construct( PLL_Base &$polylang ) { |
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$this->links_model = &$polylang->links_model; |
| 48 |
$this->model = &$polylang->model; |
| 49 |
$this->options = $polylang->options; |
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$this->curlang = &$polylang->curlang; |
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|
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// Deletes our cache for sticky posts when the list is updated. |
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add_action( 'update_option_sticky_posts', array( $this, 'delete_sticky_posts_cache' ) ); |
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add_action( 'add_option_sticky_posts', array( $this, 'delete_sticky_posts_cache' ) ); |
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add_action( 'delete_option_sticky_posts', array( $this, 'delete_sticky_posts_cache' ) ); |
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|
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// Filters the comments according to the current language. |
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add_action( 'parse_comment_query', array( $this, 'parse_comment_query' ) ); |
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add_filter( 'comments_clauses', array( $this, 'comments_clauses' ), 10, 2 ); |
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|
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// Filters the get_pages function according to the current language. |
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add_filter( 'get_pages_query_args', array( $this, 'get_pages_query_args' ), 10, 2 ); |
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|
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// Rewrites next and previous post links to filter them by language. |
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add_filter( 'get_previous_post_join', array( $this, 'posts_join' ), 10, 5 ); |
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add_filter( 'get_next_post_join', array( $this, 'posts_join' ), 10, 5 ); |
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add_filter( 'get_previous_post_where', array( $this, 'posts_where' ), 10, 5 ); |
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add_filter( 'get_next_post_where', array( $this, 'posts_where' ), 10, 5 ); |
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|
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// Converts the locale to a valid W3C locale. |
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add_filter( 'language_attributes', array( $this, 'language_attributes' ) ); |
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|
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// Translate the site title in emails sent to users |
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add_filter( 'password_change_email', array( $this, 'translate_user_email' ) ); |
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add_filter( 'email_change_email', array( $this, 'translate_user_email' ) ); |
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|
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// Translates the privacy policy page. |
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add_filter( 'option_wp_page_for_privacy_policy', array( $this, 'translate_page_for_privacy_policy' ), 20 ); // Since WP 4.9.6. |
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add_filter( 'map_meta_cap', array( $this, 'fix_privacy_policy_page_editing' ), 10, 4 ); |
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|
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// Personal data exporter. |
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add_filter( 'wp_privacy_personal_data_exporters', array( $this, 'register_personal_data_exporter' ), 0 ); // Since WP 4.9.6. |
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|
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// Fix for `term_exists()`. |
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add_filter( 'term_exists_default_query_args', array( $this, 'term_exists_default_query_args' ), 0, 3 ); // Since WP 6.0.0. |
| 86 |
} |
| 87 |
|
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/** |
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* Deletes the cache for multilingual sticky posts. |
| 90 |
* |
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* @since 2.8.4 |
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* |
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* @return void |
| 94 |
*/ |
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public function delete_sticky_posts_cache() { |
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wp_cache_delete( 'sticky_posts', 'options' ); |
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} |
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|
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/** |
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* Get the language to filter a comments query. |
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* |
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* @since 2.0 |
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* @since 3.1 Always returns an array. Renamed from get_comments_queried_language(). |
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* |
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* @param WP_Comment_Query $query WP_Comment_Query object. |
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* @return PLL_Language[] The languages to use in the filter. |
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*/ |
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protected function get_comments_queried_languages( $query ) { |
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// Don't filter comments if comment ids or post ids are specified. |
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$plucked = wp_array_slice_assoc( $query->query_vars, array( 'comment__in', 'parent', 'post_id', 'post__in', 'post_parent' ) ); |
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$fields = array_filter( $plucked ); |
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if ( ! empty( $fields ) ) { |
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return array(); |
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} |
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|
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// Don't filter comments if a non translated post type is specified. |
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if ( ! empty( $query->query_vars['post_type'] ) && ! $this->model->is_translated_post_type( $query->query_vars['post_type'] ) ) { |
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return array(); |
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} |
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|
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// If comments are queried with a 'lang' parameter, keeps only language codes. |
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if ( isset( $query->query_vars['lang'] ) ) { |
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$languages = is_string( $query->query_vars['lang'] ) ? explode( ',', $query->query_vars['lang'] ) : $query->query_vars['lang']; |
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if ( is_array( $languages ) ) { |
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$languages = array_map( array( $this->model, 'get_language' ), $languages ); |
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return array_filter( $languages ); |
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} |
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} |
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|
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if ( ! empty( $this->curlang ) ) { |
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return array( $this->curlang ); |
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} |
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|
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return array(); |
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} |
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|
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/** |
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* Adds a language dependent cache domain when querying comments. |
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* Useful as the 'lang' parameter is not included in cache key by WordPress. |
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* Needed since WP 4.6 as comments have been added to persistent cache. See #36906, #37419. |
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* |
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* @since 2.0 |
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* |
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* @param WP_Comment_Query $query WP_Comment_Query object. |
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* @return void |
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*/ |
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public function parse_comment_query( $query ) { |
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$lang = $this->get_comments_queried_languages( $query ); |
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if ( ! empty( $lang ) ) { |
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$lang = wp_list_pluck( $lang, 'slug' ); |
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$key = '_' . implode( ',', $lang ); |
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$query->query_vars['cache_domain'] = empty( $query->query_vars['cache_domain'] ) ? 'pll' . $key : $query->query_vars['cache_domain'] . $key; |
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} |
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} |
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|
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/** |
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* Filters the comments according to the current language. |
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* Used by the recent comments widget and admin language filter. |
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* |
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* @since 0.2 |
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* |
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* @param string[] $clauses SQL clauses. |
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* @param WP_Comment_Query $query WP_Comment_Query object. |
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* @return string[] Modified $clauses. |
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*/ |
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public function comments_clauses( $clauses, $query ) { |
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global $wpdb; |
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|
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$lang = $this->get_comments_queried_languages( $query ); |
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|
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if ( ! empty( $lang ) ) { |
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$lang = wp_list_pluck( $lang, 'slug' ); |
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|
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// If this clause is not already added by WP. |
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if ( ! preg_match( "#JOIN\s+{$wpdb->posts}\s+ON\s+(({$wpdb->posts}\.)?ID|({$wpdb->comments}\.)?comment_post_ID)\s*=#", $clauses['join'] ) ) { |
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$clauses['join'] .= " JOIN $wpdb->posts ON $wpdb->posts.ID = $wpdb->comments.comment_post_ID"; |
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} |
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|
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$clauses['join'] .= $this->model->post->join_clause(); |
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$clauses['where'] .= $this->model->post->where_clause( $lang ); |
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} |
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return $clauses; |
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} |
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|
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/** |
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* Filters the WP_Query in get_pages() per language. |
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* |
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* @since 3.4.3 |
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* |
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* @param array $query_args Array of arguments passed to WP_Query. |
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* @param array $parsed_args Array of get_pages() arguments. |
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* @return array Array of arguments passed to WP_Query with the language. |
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*/ |
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public function get_pages_query_args( $query_args, $parsed_args ) { |
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if ( isset( $parsed_args['lang'] ) ) { |
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$query_args['lang'] = $parsed_args['lang']; |
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} |
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|
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return $query_args; |
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} |
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|
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/** |
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* Modifies the sql request for get_adjacent_post to filter by the current language. |
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* |
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* @since 0.1 |
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* |
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* @param string $sql The JOIN clause in the SQL. |
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* @param bool $in_same_term Whether post should be in a same taxonomy term. |
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* @param int[] $excluded_terms Array of excluded term IDs. |
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* @param string $taxonomy Taxonomy. Used to identify the term used when `$in_same_term` is true. |
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* @param WP_Post $post WP_Post object. |
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* @return string Modified JOIN clause. |
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*/ |
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public function posts_join( $sql, $in_same_term, $excluded_terms, $taxonomy, $post ) { |
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return $this->model->is_translated_post_type( $post->post_type ) && ! empty( $this->curlang ) ? $sql . $this->model->post->join_clause( 'p' ) : $sql; |
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} |
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|
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/** |
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* Modifies the sql request for wp_get_archives and get_adjacent_post to filter by the current language. |
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* |
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* @since 0.1 |
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* |
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* @param string $sql The WHERE clause in the SQL. |
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* @param bool $in_same_term Whether post should be in a same taxonomy term. |
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* @param int[] $excluded_terms Array of excluded term IDs. |
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* @param string $taxonomy Taxonomy. Used to identify the term used when `$in_same_term` is true. |
| 227 |
* @param WP_Post $post WP_Post object. |
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* @return string Modified WHERE clause. |
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*/ |
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public function posts_where( $sql, $in_same_term, $excluded_terms, $taxonomy, $post ) { |
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return $this->model->is_translated_post_type( $post->post_type ) && ! empty( $this->curlang ) ? $sql . $this->model->post->where_clause( $this->curlang ) : $sql; |
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} |
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|
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/** |
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* Converts WordPress locale to valid W3 locale in html language attributes |
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* |
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* @since 1.8 |
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* |
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* @param string $output language attributes |
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* @return string |
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*/ |
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public function language_attributes( $output ) { |
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$language = $this->model->get_language( determine_locale() ); |
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|
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if ( ! $language ) { |
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return $output; |
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} |
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|
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return str_replace( '"' . get_bloginfo( 'language' ) . '"', '"' . $language->get_locale( 'display' ) . '"', $output ); |
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} |
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|
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/** |
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* Translates the site title in emails sent to the user (change email, reset password) |
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* It is necessary to filter the email because WP evaluates the site title before calling switch_to_locale() |
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* |
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* @since 2.1.3 |
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* |
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* @param string[] $email Email contents. |
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* @return string[] Translated email contents. |
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*/ |
| 261 |
public function translate_user_email( $email ) { |
| 262 |
$blog_name = wp_specialchars_decode( pll__( get_option( 'blogname' ) ), ENT_QUOTES ); |
| 263 |
$email['subject'] = sprintf( $email['subject'], $blog_name ); |
| 264 |
$email['message'] = str_replace( '###SITENAME###', $blog_name, $email['message'] ); |
| 265 |
return $email; |
| 266 |
} |
| 267 |
|
| 268 |
/** |
| 269 |
* Translates the privacy policy page, on both frontend and admin |
| 270 |
* |
| 271 |
* @since 2.3.6 |
| 272 |
* |
| 273 |
* @param int $id Privacy policy page id |
| 274 |
* @return int |
| 275 |
*/ |
| 276 |
public function translate_page_for_privacy_policy( $id ) { |
| 277 |
return empty( $this->curlang ) ? $id : $this->model->post->get( $id, $this->curlang ); |
| 278 |
} |
| 279 |
|
| 280 |
/** |
| 281 |
* Prevents edit and delete links for the translations of the privacy policy page for non admin |
| 282 |
* |
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* @since 2.3.7 |
| 284 |
* |
| 285 |
* @param array $caps The user's actual capabilities. |
| 286 |
* @param string $cap Capability name. |
| 287 |
* @param int $user_id The user ID. |
| 288 |
* @param array $args Adds the context to the cap. The category id. |
| 289 |
* @return array |
| 290 |
*/ |
| 291 |
public function fix_privacy_policy_page_editing( $caps, $cap, $user_id, $args ) { |
| 292 |
if ( ! in_array( $cap, array( 'edit_page', 'edit_post', 'delete_page', 'delete_post' ), true ) ) { |
| 293 |
return $caps; |
| 294 |
} |
| 295 |
|
| 296 |
if ( empty( $args[0] ) ) { |
| 297 |
return $caps; |
| 298 |
} |
| 299 |
|
| 300 |
/* |
| 301 |
* We expect a post ID, but nothing prevents to receive a `WP_Post`, |
| 302 |
* so let make sure we manipulate a post ID in any case. |
| 303 |
*/ |
| 304 |
$post = get_post( $args[0] ); |
| 305 |
if ( ! $post ) { |
| 306 |
return $caps; |
| 307 |
} |
| 308 |
|
| 309 |
$privacy_page = get_option( 'wp_page_for_privacy_policy' ); |
| 310 |
if ( $privacy_page && in_array( $post->ID, $this->model->post->get_translations( $privacy_page ), true ) ) { |
| 311 |
$caps = array_merge( $caps, map_meta_cap( 'manage_privacy_options', $user_id ) ); |
| 312 |
} |
| 313 |
|
| 314 |
return $caps; |
| 315 |
} |
| 316 |
|
| 317 |
/** |
| 318 |
* Register our personal data exporter |
| 319 |
* |
| 320 |
* @since 2.3.6 |
| 321 |
* |
| 322 |
* @param array $exporters Personal data exporters |
| 323 |
* @return array |
| 324 |
*/ |
| 325 |
public function register_personal_data_exporter( $exporters ) { |
| 326 |
$exporters[] = array( |
| 327 |
'exporter_friendly_name' => __( 'Translated user descriptions', 'polylang' ), |
| 328 |
'callback' => array( $this, 'user_data_exporter' ), |
| 329 |
); |
| 330 |
return $exporters; |
| 331 |
} |
| 332 |
|
| 333 |
/** |
| 334 |
* Export translated user description as WP exports only the description in the default language |
| 335 |
* |
| 336 |
* @since 2.3.6 |
| 337 |
* |
| 338 |
* @param string $email_address User email address |
| 339 |
* @return array Personal data |
| 340 |
*/ |
| 341 |
public function user_data_exporter( $email_address ) { |
| 342 |
$email_address = trim( $email_address ); |
| 343 |
$data_to_export = array(); |
| 344 |
$user_data_to_export = array(); |
| 345 |
|
| 346 |
if ( $user = get_user_by( 'email', $email_address ) ) { |
| 347 |
foreach ( $this->model->get_languages_list() as $lang ) { |
| 348 |
if ( ! $lang->is_default && $value = get_user_meta( $user->ID, 'description_' . $lang->slug, true ) ) { |
| 349 |
$user_data_to_export[] = array( |
| 350 |
/* translators: %s is a language native name */ |
| 351 |
'name' => sprintf( __( 'User description - %s', 'polylang' ), $lang->name ), |
| 352 |
'value' => $value, |
| 353 |
); |
| 354 |
} |
| 355 |
} |
| 356 |
|
| 357 |
if ( ! empty( $user_data_to_export ) ) { |
| 358 |
$data_to_export[] = array( |
| 359 |
'group_id' => 'user', |
| 360 |
'group_label' => __( 'User', 'polylang' ), |
| 361 |
'item_id' => "user-{$user->ID}", |
| 362 |
'data' => $user_data_to_export, |
| 363 |
); |
| 364 |
} |
| 365 |
} |
| 366 |
|
| 367 |
return array( |
| 368 |
'data' => $data_to_export, |
| 369 |
'done' => true, |
| 370 |
); |
| 371 |
} |
| 372 |
|
| 373 |
/** |
| 374 |
* Filters default query arguments for checking if a term exists. |
| 375 |
* In `term_exists()`, WP 6.0 uses `get_terms()`, which is filtered by language by Polylang. |
| 376 |
* This filter prevents `term_exists()` to be filtered by language. |
| 377 |
* |
| 378 |
* @since 3.2 |
| 379 |
* |
| 380 |
* @param array $defaults An array of arguments passed to get_terms(). |
| 381 |
* @param int|string $term The term to check. Accepts term ID, slug, or name. |
| 382 |
* @param string $taxonomy The taxonomy name to use. An empty string indicates the search is against all taxonomies. |
| 383 |
* @return array |
| 384 |
*/ |
| 385 |
public function term_exists_default_query_args( $defaults, $term, $taxonomy ) { |
| 386 |
if ( ! empty( $taxonomy ) && ! $this->model->is_translated_taxonomy( $taxonomy ) ) { |
| 387 |
return $defaults; |
| 388 |
} |
| 389 |
|
| 390 |
if ( ! is_array( $defaults ) ) { |
| 391 |
$defaults = array(); |
| 392 |
} |
| 393 |
|
| 394 |
if ( ! isset( $defaults['lang'] ) ) { |
| 395 |
$defaults['lang'] = ''; |
| 396 |
} |
| 397 |
|
| 398 |
return $defaults; |
| 399 |
} |
| 400 |
} |
| 401 |
|
