Current File : //var/www/arphotolab.eco-n-tech.co.uk/wp-content/plugins/polylang/include/links-model.php
<?php
/**
* @package Polylang
*/
/**
* Links model abstract class.
*
* @since 1.5
*/
abstract class PLL_Links_Model {
/**
* True if the child class uses pretty permalinks, false otherwise.
*
* @var bool
*/
public $using_permalinks;
/**
* Stores the plugin options.
*
* @var array
*/
public $options;
/**
* @var PLL_Model
*/
public $model;
/**
* Stores the home url before it is filtered.
*
* @var string
*/
public $home;
/**
* Constructor.
*
* @since 1.5
*
* @param PLL_Model $model PLL_Model instance.
*/
public function __construct( &$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' ) );
}
/**
* Adds the language code in url.
*
* @since 1.2
*
* @param string $url The url to modify.
* @param PLL_Language $lang The language object.
* @return string Modified url.
*/
abstract public function add_language_to_link( $url, $lang );
/**
* Returns the url without language code.
*
* @since 1.2
*
* @param string $url The url to modify.
* @return string Modified url.
*/
abstract public function remove_language_from_link( $url );
/**
* Returns the link to the first page.
*
* @since 1.2
*
* @param string $url The url to modify.
* @return string Modified url.
*/
abstract public function remove_paged_from_link( $url );
/**
* Returns the link to a paged page.
*
* @since 1.5
*
* @param string $url The url to modify.
* @param int $page The page number.
* @return string Modified url.
*/
abstract public function add_paged_to_link( $url, $page );
/**
* Returns the language based on language code in url.
*
* @since 1.2
* @since 2.0 add $url argument.
*
* @param string $url Optional, defaults to thej current url.
* @return string Language slug.
*/
abstract public function get_language_from_url( $url = '' );
/**
* Returns the static front page url.
*
* @since 1.8
*
* @param PLL_Language $lang The language object.
* @return string The static front page url.
*/
abstract public function front_page_url( $lang );
/**
* Changes the language code in url.
*
* @since 1.5
*
* @param string $url The url to modify.
* @param PLL_Language $lang The language object.
* @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 string[] The list of hosts.
*/
public function get_hosts() {
return array( wp_parse_url( $this->home, PHP_URL_HOST ) );
}
/**
* Returns the home url in a given language.
*
* @since 1.3.1
*
* @param PLL_Language $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 in PLL_Language.
*
* @since 1.8
*
* @param PLL_Language $language PLL_Language object.
* @return void
*/
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 PLL_Language[] $languages Array of PLL_Language objects.
* @return PLL_Language[] Array of PLL_Language objects with home url and flag.
*/
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 PLL_Language[] $languages Array of PLL_Language objects.
* @return PLL_Language[] Array of PLL_Language objects.
*/
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 and flag urls use the right scheme http or https.
$language->set_url_scheme();
}
return $languages;
}
/**
* Adds our domains or subdomains to allowed hosts for safe redirect.
*
* @since 1.4.3
*
* @param string[] $hosts Allowed hosts.
* @return string[] Modified list of allowed hosts.
*/
public function allowed_redirect_hosts( $hosts ) {
return array_unique( array_merge( $hosts, array_values( $this->get_hosts() ) ) );
}
}
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