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<?php |
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|
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/* |
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* links model for use when the language code is added in url as a directory |
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* for example mysite.com/en/something |
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* implements the "links_model interface" |
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* |
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* @since 1.2 |
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*/ |
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class PLL_Links_Directory extends PLL_Links_Model { |
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protected $index = 'index.php'; // need this before $wp_rewrite is created, also harcoded in wp-includes/rewrite.php |
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protected $root; |
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protected $rewrite_rules = array(); |
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protected $always_rewrite = array('date', 'root', 'comments', 'search', 'author', 'post_format', 'language'); |
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|
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/* |
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* constructor |
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* |
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* @since 1.2 |
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* |
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* @param object $model PLL_Model instance |
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*/ |
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public function __construct(&$model) { |
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parent::__construct($model); |
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|
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static $done = false; |
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if ($done) |
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return; |
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|
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$done = true; // avoid duplicating rewrite rules when switching blog thanks to @ScreenFeedFr |
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|
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// inspired by wp-includes/rewrite.php |
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$this->root = preg_match('#^/*' . $this->index . '#', get_option('permalink_structure')) ? $this->index . '/' : ''; |
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|
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add_action('setup_theme', array(&$this, 'add_permastruct')); |
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|
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// refresh rewrite rules if the 'page_on_front' option is modified |
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add_action('update_option_page_on_front', 'flush_rewrite_rules'); |
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|
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// make sure to prepare rewrite rules when flushing |
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add_action('pre_option_rewrite_rules', array(&$this, 'prepare_rewrite_rules')); |
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} |
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|
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/* |
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* adds the language code in url |
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* links_model interface |
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* |
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* @since 1.2 |
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* |
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* @param string $url url to modify |
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* @param object $lang language |
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* @return string modified url |
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*/ |
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public function add_language_to_link($url, $lang) { |
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if (!empty($lang)) { |
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$base = $this->options['rewrite'] ? '' : 'language/'; |
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$slug = $this->options['default_lang'] == $lang->slug && $this->options['hide_default'] ? '' : $base . $lang->slug . '/'; |
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return str_replace($this->home . '/' . $this->root, $this->home . '/' . $this->root . $slug, $url); |
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} |
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return $url; |
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} |
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|
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/* |
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* returns the url without language code |
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* links_model interface |
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* |
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* @since 1.2 |
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* |
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* @param string $url url to modify |
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* @return string modified url |
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*/ |
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function remove_language_from_link($url) { |
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foreach ($this->model->get_languages_list() as $language) |
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if (!$this->options['hide_default'] || $this->options['default_lang'] != $language->slug) |
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$languages[] = $language->slug; |
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|
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if (!empty($languages)) { |
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$pattern = str_replace('/', '\/', $this->home . '/' . $this->root); |
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$pattern = '#' . $pattern . ($this->options['rewrite'] ? '' : 'language\/') . '('.implode('|', $languages).')(\/|$)#'; |
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$url = preg_replace($pattern, $this->home . '/' . $this->root, $url); |
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} |
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return $url; |
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} |
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|
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/* |
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* returns the language based on language code in url |
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* links_model interface |
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* |
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* @since 1.2 |
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* |
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* @return string language slug |
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*/ |
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public function get_language_from_url() { |
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$requested_url = (is_ssl() ? 'https://' : 'http://') . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; |
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$pattern = str_replace('/', '\/', $this->home . '/' . $this->root . ($this->options['rewrite'] ? '' : 'language/')); |
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$pattern = '#' . $pattern . '('. implode('|', $this->model->get_languages_list(array('fields' => 'slug'))) . ')(\/|$)#'; |
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return preg_match($pattern, trailingslashit($requested_url), $matches) ? $matches[1] : ''; // $matches[1] is the slug of the requested language |
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} |
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|
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/* |
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* returns the home url |
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* links_model interface |
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* |
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* @since 1.3.1 |
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* |
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* @param object $lang PLL_Language object |
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* @return string |
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*/ |
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public function home_url($lang) { |
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return $this->options['hide_default'] && $lang->slug == $this->options['default_lang'] ? $this->home : get_term_link($lang, 'language'); |
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} |
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|
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/* |
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* optionaly removes 'language' in permalinks so that we get http://www.myblog/en/ instead of http://www.myblog/language/en/ |
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* |
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* @since 1.2 |
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*/ |
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function add_permastruct() { |
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// language information always in front of the uri ('with_front' => false) |
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// the 3rd parameter structure has been modified in WP 3.4 |
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add_permastruct('language', $this->options['rewrite'] ? '%language%' : 'language/%language%', array('with_front' => false)); |
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} |
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|
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/* |
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* prepares rewrite rules filters |
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* |
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* @since 0.8.1 |
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* |
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* @param array $pre not used |
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* @return unmodified $pre |
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*/ |
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public function prepare_rewrite_rules($pre) { |
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//clean filters which could have been set in a previous call (may occur when changing Polylang settings) |
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foreach ($this->rewrite_rules as $type) |
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remove_filter($type . '_rewrite_rules', array(&$this, 'rewrite_rules')); |
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|
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// don't modify the rules if there is no languages created yet |
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if ($this->model->get_languages_list()) { |
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// make sure we have the right post types and taxonomies |
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$types = array_values(array_merge($this->model->get_translated_post_types(), $this->model->get_translated_taxonomies())); |
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$types = array_merge($this->always_rewrite, $types); |
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$this->rewrite_rules = apply_filters('pll_rewrite_rules', $types); // allow plugins to add rewrite rules to the language filter |
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|
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foreach ($this->rewrite_rules as $type) |
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add_filter($type . '_rewrite_rules', array(&$this, 'rewrite_rules')); |
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|
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add_filter('rewrite_rules_array', array(&$this, 'rewrite_rules')); // needed for post type archives |
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} |
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return $pre; |
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} |
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|
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/* |
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* the rewrite rules ! |
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* always make sure the default language is at the end in case the language information is hidden for default language |
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* thanks to brbrbr http://wordpress.org/support/topic/plugin-polylang-rewrite-rules-not-correct |
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* |
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* @since 0.8.1 |
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* |
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* @param array $rules rewrite rules |
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* @return array modified rewrite rules |
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*/ |
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public function rewrite_rules($rules) { |
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$filter = str_replace('_rewrite_rules', '', current_filter()); |
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|
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// suppress the rules created by WordPress for our taxonomy |
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if ($filter == 'language') |
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return array(); |
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|
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global $wp_rewrite; |
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$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($this->options['default_lang'])); |
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|
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if (!empty($languages)) |
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$slug = $wp_rewrite->root . ($this->options['rewrite'] ? '' : 'language/') . '('.implode('|', $languages).')/'; |
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|
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// for custom post type archives |
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$cpts = array_intersect($this->model->get_translated_post_types(), get_post_types(array('_builtin' => false))); |
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$cpts = $cpts ? '#post_type=('.implode('|', $cpts).')#' : ''; |
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|
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foreach ($rules as $key => $rule) { |
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// we don't need the lang parameter for post types and taxonomies |
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// moreover adding it would create issues for pages and taxonomies |
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if ($this->options['force_lang'] && in_array($filter, array_merge($this->model->get_translated_post_types(), $this->model->get_translated_taxonomies()))) { |
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if (isset($slug)) |
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$newrules[$slug.str_replace($wp_rewrite->root, '', $key)] = str_replace( |
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array('[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '[1]'), |
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array('[9]', '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]'), |
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$rule |
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); // hopefully it is sufficient! |
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|
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if ($this->options['hide_default']) { |
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$newrules[$key] = $rules[$key]; |
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// unset only if we hide the code for the default language as check_language_code_in_url will do its job in other cases |
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unset($rules[$key]); |
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} |
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} |
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|
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// rewrite rules filtered by language |
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elseif (in_array($filter, $this->always_rewrite) || ($cpts && preg_match($cpts, $rule) && !strpos($rule, 'name=')) || ($filter != 'rewrite_rules_array' && $this->options['force_lang'])) { |
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if (isset($slug)) |
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$newrules[$slug.str_replace($wp_rewrite->root, '', $key)] = str_replace( |
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array('[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '[1]', '?'), |
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array('[9]', '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '?lang=$matches[1]&'), |
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$rule |
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); // should be enough! |
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|
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if ($this->options['hide_default']) |
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$newrules[$key] = str_replace('?', '?lang='.$this->options['default_lang'].'&', $rule); |
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|
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unset($rules[$key]); // now useless |
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} |
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} |
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|
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// the home rewrite rule |
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if ($filter == 'root' && isset($slug)) |
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$newrules[$slug.'?$'] = $wp_rewrite->index.'?lang=$matches[1]'; |
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|
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return $newrules + $rules; |
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} |
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} |
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|
