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<?php |
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/** |
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* @package Polylang |
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*/ |
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|
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/** |
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* Handles the core sitemaps. |
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* |
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* @since 2.8 |
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*/ |
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class PLL_Sitemaps { |
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/** |
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* A reference to the current language. |
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* |
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* @since 2.8 |
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* |
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* @var PLL_Language |
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*/ |
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protected $curlang; |
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|
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/** |
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* A reference to the PLL_Links_Model instance. |
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* |
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* @since 2.8 |
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* |
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* @var PLL_Links_Model |
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*/ |
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protected $links_model; |
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|
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/** |
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* A reference to the PLL_Model instance. |
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* |
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* @since 2.8 |
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* |
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* @var PLL_Model |
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*/ |
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protected $model; |
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|
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/** |
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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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protected $options; |
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|
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/** |
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* Constructor. |
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* |
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* @since 2.8 |
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* |
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* @param object $polylang Main Polylang object. |
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*/ |
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public function __construct( &$polylang ) { |
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$this->curlang = &$polylang->curlang; |
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$this->links_model = &$polylang->links_model; |
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$this->model = &$polylang->model; |
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$this->options = &$polylang->options; |
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} |
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|
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/** |
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* Setups actions and filters. |
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* |
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* @since 2.8 |
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*/ |
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public function init() { |
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add_filter( 'pll_home_url_white_list', array( $this, 'home_url_white_list' ) ); |
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|
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if ( $this->options['force_lang'] < 2 ) { |
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add_filter( 'pll_set_language_from_query', array( $this, 'set_language_from_query' ), 10, 2 ); |
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add_filter( 'rewrite_rules_array', array( $this, 'rewrite_rules' ) ); |
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add_filter( 'wp_sitemaps_add_provider', array( $this, 'replace_provider' ) ); |
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} else { |
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add_filter( 'wp_sitemaps_index_entry', array( $this, 'index_entry' ) ); |
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add_filter( 'wp_sitemaps_stylesheet_url', array( $this->links_model, 'site_url' ) ); |
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add_filter( 'wp_sitemaps_stylesheet_index_url', array( $this->links_model, 'site_url' ) ); |
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} |
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} |
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|
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/** |
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* Assigns the current language to the default language when the sitemap url |
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* doesn't include any language. |
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* |
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* @since 2.8 |
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* |
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* @param string|bool $lang Current language code, false if not set yet. |
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* @param object $query Main WP query object. |
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* @return string|bool |
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*/ |
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public function set_language_from_query( $lang, $query ) { |
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if ( isset( $query->query['sitemap'] ) && empty( $query->query['lang'] ) ) { |
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$lang = $this->options['default_lang']; |
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} |
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return $lang; |
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} |
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|
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/** |
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* Whitelists the home url filter for the sitemaps |
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* |
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* @since 2.8 |
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* |
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* @param array $whitelist White list. |
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* @return array; |
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*/ |
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public function home_url_white_list( $whitelist ) { |
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$whitelist[] = array( 'file' => 'class-wp-sitemaps-posts' ); |
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return $whitelist; |
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} |
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|
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/** |
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* Filters the sitemaps rewrite rules to take the languages into account. |
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* |
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* @since 2.8 |
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* |
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* @param array $rules Rewrite rules. |
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* @return array |
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*/ |
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public function rewrite_rules( $rules ) { |
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global $wp_rewrite; |
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|
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$newrules = array(); |
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|
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$languages = $this->model->get_languages_list( array( 'fields' => 'slug' ) ); |
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if ( $this->options['hide_default'] ) { |
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$languages = array_diff( $languages, array( $this->options['default_lang'] ) ); |
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} |
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|
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if ( ! empty( $languages ) ) { |
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$slug = $wp_rewrite->root . ( $this->options['rewrite'] ? '^' : '^language/' ) . '(' . implode( '|', $languages ) . ')/'; |
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} |
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|
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foreach ( $rules as $key => $rule ) { |
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if ( false !== strpos( $rule, 'sitemap=$matches[1]' ) ) { |
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$newrules[ str_replace( '^wp-sitemap', $slug . 'wp-sitemap', $key ) ] = str_replace( |
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array( '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '[1]', '?' ), |
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array( '[9]', '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '?lang=$matches[1]&' ), |
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$rule |
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); // Should be enough! |
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} |
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|
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$newrules[ $key ] = $rule; |
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} |
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return $newrules; |
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} |
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|
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/** |
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* Replaces a sitemap provider by our decorator. |
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* |
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* @since 2.8 |
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* |
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* @param WP_Sitemaps_Provider $provider Instance of a WP_Sitemaps_Provider. |
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* @return WP_Sitemaps_Provider |
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*/ |
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public function replace_provider( $provider ) { |
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if ( $provider instanceof WP_Sitemaps_Provider ) { |
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$provider = new PLL_Multilingual_Sitemaps_Provider( $provider, $this->links_model ); |
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} |
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return $provider; |
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} |
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|
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/** |
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* Filters the sitemap index entries for subdomains and multiple domains. |
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* |
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* @since 2.8 |
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* |
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* @param array $sitemap_entry Sitemap entry for the post. |
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* return array |
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*/ |
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public function index_entry( $sitemap_entry ) { |
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$sitemap_entry['loc'] = $this->links_model->site_url( $sitemap_entry['loc'] ); |
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return $sitemap_entry; |
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} |
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} |
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