wordpress/php-fpm/wordpress_files/plugins/polylang/include/links-model.php

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2020-05-22 03:40:23 +02:00
<?php
/**
* Links model abstract class
*
* @since 1.5
*/
abstract class PLL_Links_Model {
public $model, $options;
public $home; // used to store the home url before it is filtered
public $using_permalinks;
/**
* Constructor
*
* @since 1.5
*
* @param object $model PLL_Model instance
*/
public function __construct( &$model ) {
$this->model = &$model;
$this->options = &$model->options;
$this->home = home_url();
add_filter( 'pll_languages_list', array( $this, 'pll_languages_list' ), 4 ); // after PLL_Static_Pages
add_filter( 'pll_after_languages_cache', array( $this, 'pll_after_languages_cache' ) );
// adds our domains or subdomains to allowed hosts for safe redirection
add_filter( 'allowed_redirect_hosts', array( $this, 'allowed_redirect_hosts' ) );
}
/**
* Changes the language code in url
*
* @since 1.5
*
* @param string $url url to modify
* @param object $lang language
* @return string modified url
*/
public function switch_language_in_link( $url, $lang ) {
$url = $this->remove_language_from_link( $url );
return $this->add_language_to_link( $url, $lang );
}
/**
* Get hosts managed on the website
*
* @since 1.5
*
* @return array list of hosts
*/
public function get_hosts() {
return array( wp_parse_url( $this->home, PHP_URL_HOST ) );
}
/**
* Returns the home url
*
* @since 1.3.1
*
* @param object $lang PLL_Language object
* @return string
*/
public function home_url( $lang ) {
$url = trailingslashit( $this->home );
return $this->options['hide_default'] && $lang->slug == $this->options['default_lang'] ? $url : $this->add_language_to_link( $url, $lang );
}
/**
* Sets the home urls
*
* @since 1.8
*
* @param object $language
*/
protected function set_home_url( $language ) {
// We should always have a default language here, except, temporarily, in PHPUnit tests. The test here protects against PHP notices.
if ( isset( $this->options['default_lang'] ) ) {
$search_url = $this->home_url( $language );
$home_url = empty( $language->page_on_front ) || $this->options['redirect_lang'] ? $search_url : $this->front_page_url( $language );
$language->set_home_url( $search_url, $home_url );
}
}
/**
* Sets the home urls and flags before the languages are persistently cached
*
* @since 1.8
*
* @param array $languages array of PLL_Language objects
* @return array
*/
public function pll_languages_list( $languages ) {
foreach ( $languages as $language ) {
$this->set_home_url( $language );
$language->set_flag();
}
return $languages;
}
/**
* Sets the home urls when not cached
* Sets the home urls scheme
*
* @since 1.8
*
* @param array $languages array of PLL_Language objects
* @return array
*/
public function pll_after_languages_cache( $languages ) {
foreach ( $languages as $language ) {
// Get the home urls when not cached
if ( ( defined( 'PLL_CACHE_LANGUAGES' ) && ! PLL_CACHE_LANGUAGES ) || ( defined( 'PLL_CACHE_HOME_URL' ) && ! PLL_CACHE_HOME_URL ) ) {
$this->set_home_url( $language );
}
// Ensures that the ( possibly cached ) home url uses the right scheme http or https
$language->set_home_url_scheme();
}
return $languages;
}
/**
* Adds our domains or subdomains to allowed hosts for safe redirection
*
* @since 1.4.3
*
* @param array $hosts allowed hosts
* @return array
*/
public function allowed_redirect_hosts( $hosts ) {
return array_unique( array_merge( $hosts, array_values( $this->get_hosts() ) ) );
}
}