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