| 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 { |
| 12 |
/** |
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* Stores the plugin options. |
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* |
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* @var array |
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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 |
| 35 |
*/ |
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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 object $polylang |
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*/ |
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public function __construct( &$polylang ) { |
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$this->links_model = &$polylang->links_model; |
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$this->model = &$polylang->model; |
| 48 |
$this->options = &$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', array( $this, 'get_pages' ), 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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// Prevents deleting all the translations of the default category |
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add_filter( 'map_meta_cap', array( $this, 'fix_delete_default_category' ), 10, 4 ); |
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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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|
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/** |
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* Deletes the cache for multilingual sticky posts. |
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* |
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* @since 2.8.4 |
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* |
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* @return void |
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*/ |
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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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* |
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* @param WP_Comment_Query $query WP_Comment_Query object. |
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* @return PLL_Language|false The language to use in the filter, false otherwise. |
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*/ |
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protected function get_comments_queried_language( $query ) { |
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// Don't filter comments if comment ids or post ids are specified. |
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$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 false; |
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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 false; |
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} |
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|
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return empty( $query->query_vars['lang'] ) ? $this->curlang : $this->model->get_language( $query->query_vars['lang'] ); |
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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_language( $query ); |
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if ( $lang ) { |
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$key = '_' . $lang->slug; |
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$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_language( $query ); |
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|
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if ( ! empty( $lang ) ) { |
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// If this clause is not already added by WP. |
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if ( ! strpos( $clauses['join'], '.ID' ) ) { |
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$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 get_pages() per language. |
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* |
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* @since 1.4 |
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* |
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* @param WP_Post[] $pages An array of pages already queried. |
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* @param array $args Array of get_pages() arguments. |
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* @return WP_Post[] Modified list of pages. |
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*/ |
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public function get_pages( $pages, $args ) { |
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if ( isset( $args['lang'] ) && empty( $args['lang'] ) ) { |
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return $pages; |
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} |
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|
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$language = empty( $args['lang'] ) ? $this->curlang : $this->model->get_language( $args['lang'] ); |
| 182 |
|
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if ( empty( $language ) || empty( $pages ) || ! $this->model->is_translated_post_type( $args['post_type'] ) ) { |
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return $pages; |
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} |
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|
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static $once = false; |
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|
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// Obliged to redo the get_pages query if we want to get the right number |
| 190 |
if ( ! empty( $args['number'] ) && ! $once ) { |
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$once = true; // avoid infinite loop |
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|
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$r = array( |
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'lang' => 0, // So this query is not filtered |
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'numberposts' => -1, |
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'nopaging' => true, |
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'post_type' => $args['post_type'], |
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'fields' => 'ids', |
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'tax_query' => array( |
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array( |
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'taxonomy' => 'language', |
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'field' => 'term_taxonomy_id', // Since WP 3.5 |
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'terms' => $language->term_taxonomy_id, |
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'operator' => 'NOT IN', |
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), |
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), |
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); |
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|
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// Take care that 'exclude' argument accepts integer or strings too |
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$args['exclude'] = array_merge( wp_parse_id_list( $args['exclude'] ), get_posts( $r ) ); |
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$pages = get_pages( $args ); |
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} |
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|
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$ids = wp_list_pluck( $pages, 'ID' ); |
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|
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// Filters the queried list of pages by language |
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if ( ! $once ) { |
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$ids = array_intersect( $ids, $this->model->post->get_objects_in_language( $language ) ); |
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|
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foreach ( $pages as $key => $page ) { |
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if ( ! in_array( $page->ID, $ids ) ) { |
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unset( $pages[ $key ] ); |
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} |
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} |
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|
| 226 |
$pages = array_values( $pages ); // In case 3rd parties suppose the existence of $pages[0] |
| 227 |
} |
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|
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// Not done by WP but extremely useful for performance when manipulating taxonomies |
| 230 |
update_object_term_cache( $ids, $args['post_type'] ); |
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|
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$once = false; // In case get_pages is called another time |
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return $pages; |
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} |
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|
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/** |
| 237 |
* 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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} |
| 251 |
|
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/** |
| 253 |
* Modifies the sql request for wp_get_archives and get_adjacent_post to filter by the current language. |
| 254 |
* |
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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. |
| 259 |
* @param int[] $excluded_terms Array of excluded term IDs. |
| 260 |
* @param string $taxonomy Taxonomy. Used to identify the term used when `$in_same_term` is true. |
| 261 |
* @param WP_Post $post WP_Post object. |
| 262 |
* @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; |
| 266 |
} |
| 267 |
|
| 268 |
/** |
| 269 |
* Converts WordPress locale to valid W3 locale in html language attributes |
| 270 |
* |
| 271 |
* @since 1.8 |
| 272 |
* |
| 273 |
* @param string $output language attributes |
| 274 |
* @return string |
| 275 |
*/ |
| 276 |
public function language_attributes( $output ) { |
| 277 |
if ( $language = $this->model->get_language( is_admin() ? get_user_locale() : get_locale() ) ) { |
| 278 |
$output = str_replace( '"' . get_bloginfo( 'language' ) . '"', '"' . $language->get_locale( 'display' ) . '"', $output ); |
| 279 |
} |
| 280 |
return $output; |
| 281 |
} |
| 282 |
|
| 283 |
/** |
| 284 |
* Prevents deleting all the translations of the default category |
| 285 |
* |
| 286 |
* @since 2.1 |
| 287 |
* |
| 288 |
* @param array $caps The user's actual capabilities. |
| 289 |
* @param string $cap Capability name. |
| 290 |
* @param int $user_id The user ID. |
| 291 |
* @param array $args Adds the context to the cap. The category id. |
| 292 |
* @return array |
| 293 |
*/ |
| 294 |
public function fix_delete_default_category( $caps, $cap, $user_id, $args ) { |
| 295 |
if ( 'delete_term' === $cap ) { |
| 296 |
$term = get_term( reset( $args ) ); // Since WP 4.4, we can get the term to get the taxonomy |
| 297 |
if ( $term instanceof WP_Term ) { |
| 298 |
$default_cat = get_option( 'default_' . $term->taxonomy ); |
| 299 |
if ( $default_cat && array_intersect( $args, $this->model->term->get_translations( $default_cat ) ) ) { |
| 300 |
$caps[] = 'do_not_allow'; |
| 301 |
} |
| 302 |
} |
| 303 |
} |
| 304 |
|
| 305 |
return $caps; |
| 306 |
} |
| 307 |
|
| 308 |
/** |
| 309 |
* Translates the site title in emails sent to the user (change email, reset password). |
| 310 |
* It is necessary to filter the email because WP evaluates the site title before calling switch_to_locale(). |
| 311 |
* |
| 312 |
* @since 2.1.3 |
| 313 |
* |
| 314 |
* @param string[] $email Email contents. |
| 315 |
* @return string[] Translated email contents. |
| 316 |
*/ |
| 317 |
public function translate_user_email( $email ) { |
| 318 |
$blog_name = wp_specialchars_decode( pll__( get_option( 'blogname' ) ), ENT_QUOTES ); |
| 319 |
$email['subject'] = sprintf( $email['subject'], $blog_name ); |
| 320 |
$email['message'] = str_replace( '###SITENAME###', $blog_name, $email['message'] ); |
| 321 |
return $email; |
| 322 |
} |
| 323 |
|
| 324 |
/** |
| 325 |
* Translates the privacy policy page, on both frontend and admin |
| 326 |
* |
| 327 |
* @since 2.3.6 |
| 328 |
* |
| 329 |
* @param int $id Privacy policy page id |
| 330 |
* @return int |
| 331 |
*/ |
| 332 |
public function translate_page_for_privacy_policy( $id ) { |
| 333 |
return empty( $this->curlang ) ? $id : $this->model->post->get( $id, $this->curlang ); |
| 334 |
} |
| 335 |
|
| 336 |
/** |
| 337 |
* Prevents edit and delete links for the translations of the privacy policy page for non admin |
| 338 |
* |
| 339 |
* @since 2.3.7 |
| 340 |
* |
| 341 |
* @param array $caps The user's actual capabilities. |
| 342 |
* @param string $cap Capability name. |
| 343 |
* @param int $user_id The user ID. |
| 344 |
* @param array $args Adds the context to the cap. The category id. |
| 345 |
* @return array |
| 346 |
*/ |
| 347 |
public function fix_privacy_policy_page_editing( $caps, $cap, $user_id, $args ) { |
| 348 |
if ( in_array( $cap, array( 'edit_page', 'edit_post', 'delete_page', 'delete_post' ) ) ) { |
| 349 |
$privacy_page = get_option( 'wp_page_for_privacy_policy' ); |
| 350 |
if ( $privacy_page && array_intersect( $args, $this->model->post->get_translations( $privacy_page ) ) ) { |
| 351 |
$caps = array_merge( $caps, map_meta_cap( 'manage_privacy_options', $user_id ) ); |
| 352 |
} |
| 353 |
} |
| 354 |
|
| 355 |
return $caps; |
| 356 |
} |
| 357 |
|
| 358 |
/** |
| 359 |
* Register our personal data exporter |
| 360 |
* |
| 361 |
* @since 2.3.6 |
| 362 |
* |
| 363 |
* @param array $exporters Personal data exporters |
| 364 |
* @return array |
| 365 |
*/ |
| 366 |
public function register_personal_data_exporter( $exporters ) { |
| 367 |
$exporters[] = array( |
| 368 |
'exporter_friendly_name' => __( 'Translated user descriptions', 'polylang' ), |
| 369 |
'callback' => array( $this, 'user_data_exporter' ), |
| 370 |
); |
| 371 |
return $exporters; |
| 372 |
} |
| 373 |
|
| 374 |
/** |
| 375 |
* Export translated user description as WP exports only the description in the default language |
| 376 |
* |
| 377 |
* @since 2.3.6 |
| 378 |
* |
| 379 |
* @param string $email_address User email address |
| 380 |
* @return array Personal data |
| 381 |
*/ |
| 382 |
public function user_data_exporter( $email_address ) { |
| 383 |
$email_address = trim( $email_address ); |
| 384 |
$data_to_export = array(); |
| 385 |
$user_data_to_export = array(); |
| 386 |
|
| 387 |
if ( $user = get_user_by( 'email', $email_address ) ) { |
| 388 |
foreach ( $this->model->get_languages_list() as $lang ) { |
| 389 |
if ( $lang->slug !== $this->options['default_lang'] && $value = get_user_meta( $user->ID, 'description_' . $lang->slug, true ) ) { |
| 390 |
$user_data_to_export[] = array( |
| 391 |
/* translators: %s is a language native name */ |
| 392 |
'name' => sprintf( __( 'User description - %s', 'polylang' ), $lang->name ), |
| 393 |
'value' => $value, |
| 394 |
); |
| 395 |
} |
| 396 |
} |
| 397 |
|
| 398 |
if ( ! empty( $user_data_to_export ) ) { |
| 399 |
$data_to_export[] = array( |
| 400 |
'group_id' => 'user', |
| 401 |
'group_label' => __( 'User', 'polylang' ), |
| 402 |
'item_id' => "user-{$user->ID}", |
| 403 |
'data' => $user_data_to_export, |
| 404 |
); |
| 405 |
} |
| 406 |
} |
| 407 |
|
| 408 |
return array( |
| 409 |
'data' => $data_to_export, |
| 410 |
'done' => true, |
| 411 |
); |
| 412 |
} |
| 413 |
} |
| 414 |
|
