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multilanguage.php
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3931 lines (3548 loc) · 147 KB
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<?php
/**
Plugin Name: Multilanguage by BestWebSoft
Plugin URI: https://bestwebsoft.com/products/wordpress/plugins/multilanguage/
Description: Translate WordPress website content to other languages manually. Create multilingual pages, posts, widgets, menus, etc.
Author: BestWebSoft
Text Domain: multilanguage
Domain Path: /languages
Version: 1.5.2
Author URI: https://bestwebsoft.com/
License: GPLv3 or later
*/
/*
© Copyright 2021 BestWebSoft ( https://support.bestwebsoft.com )
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2, as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
$file_dir = dirname( __FILE__ );
require_once $file_dir . '/includes/table.php';
require_once $file_dir . '/includes/languages.php';
if ( ! function_exists( 'mltlngg_admin_menu' ) ) {
/**
* Function add menu pages
*/
function mltlngg_admin_menu() {
global $submenu, $mltlngg_plugin_info, $wp_version;
$settings = add_menu_page( 'Multilanguage ' . esc_html__( 'Settings', 'multilanguage' ), 'Multilanguage', 'manage_options', 'mltlngg_settings', 'mltlngg_settings_page', 'none' );
add_submenu_page( 'mltlngg_settings', 'Multilanguage ' . esc_html__( 'Settings', 'multilanguage' ), esc_html__( 'Settings', 'multilanguage' ), 'manage_options', 'mltlngg_settings', 'mltlngg_settings_page' );
$languages = add_submenu_page( 'mltlngg_settings', 'Multilanguage ' . esc_html__( 'Languages', 'multilanguage' ), esc_html__( 'Languages', 'multilanguage' ), 'manage_options', 'multilanguage-languages.php', 'mltlngg_settings_page' );
add_submenu_page( 'mltlngg_settings', 'BWS Panel', 'BWS Panel', 'manage_options', 'mltlngg-bws-panel', 'bws_add_menu_render' );
/*pls */
if ( isset( $submenu['mltlngg_settings'] ) ) {
$submenu['mltlngg_settings'][] = array(
'<span style="color:#d86463"> ' . esc_html__( 'Upgrade to Pro', 'multilanguage' ) . '</span>',
'manage_options',
'https://bestwebsoft.com/products/wordpress/plugins/multilanguage/?k=fa164f00821ed3a87e6f78cb3f5c277b&pn=143&v=' . $mltlngg_plugin_info['Version'] . '&wp_v=' . $wp_version,
);
}
/* pls*/
mltlngg_add_menu_items();
add_action( 'load-' . $settings, 'mltlngg_add_tabs' );
add_action( 'load-' . $languages, 'mltlngg_add_tabs' );
}
}
if ( ! function_exists( 'mltlngg_init' ) ) {
/**
* Plugin initialization in backend and frontend
*/
function mltlngg_init() {
global $mltlngg_options, $mltlngg_plugin_info;
require_once dirname( __FILE__ ) . '/bws_menu/bws_include.php';
bws_include_init( plugin_basename( __FILE__ ) );
if ( empty( $mltlngg_plugin_info ) ) {
if ( ! function_exists( 'get_plugin_data' ) ) {
require_once ABSPATH . 'wp-admin/includes/plugin.php';
}
$mltlngg_plugin_info = get_plugin_data( __FILE__ );
}
/* check WordPress version */
bws_wp_min_version_check( plugin_basename( __FILE__ ), $mltlngg_plugin_info, '4.5' );
mltlngg_register_settings();
/* If there have been changes in the list of languages do flush_rewrite_rules */
if ( isset( $mltlngg_options['flush_rewrite_rules'] ) && 1 === intval( $mltlngg_options['flush_rewrite_rules'] ) ) {
flush_rewrite_rules();
unset( $mltlngg_options['flush_rewrite_rules'] );
update_option( 'mltlngg_options', $mltlngg_options );
}
if ( is_plugin_active( 'woocommerce/woocommerce.php' ) ) {
/*Adding Woocommerce compatibility*/
add_filter( 'woocommerce_ajax_get_endpoint', 'mltlngg_wcmmrc', 10, 2 );
}
mltlngg_add_meta_filters();
$custom_forms = array(
'object' => 'post',
'post_types' => array( 'post', 'page' ),
);
$custom_forms = apply_filters( 'mltlngg_custom_filter', $custom_forms );
$mltlngg_taxonomies = get_object_taxonomies( $custom_forms['object'] );
if ( is_array( $mltlngg_taxonomies ) ) {
foreach ( $mltlngg_taxonomies as $mltlngg_taxonomy ) {
add_action( $mltlngg_taxonomy . '_add_form_fields', 'mltlngg_new_terms_translate' );
add_action( 'created_' . $mltlngg_taxonomy, 'mltlngg_new_terms_created' );
add_action( $mltlngg_taxonomy . '_edit_form_fields', 'mltlngg_terms_translate' );
add_action( 'edited_' . $mltlngg_taxonomy, 'mltlngg_terms_update' );
add_action( 'delete_' . $mltlngg_taxonomy, 'mltlngg_delete_term' );
/* Add language column in the taxonomy wp_list_table to display if language is translated */
add_filter( 'manage_edit-' . $mltlngg_taxonomy . '_columns', 'mltlngg_add_term_column' );
add_filter( 'manage_' . $mltlngg_taxonomy . '_custom_column', 'mltlngg_term_column', 10, 3 );
}
}
/* Add language column in the post wp_list_table to display if language is translated */
if ( is_array( $custom_forms['post_types'] ) ) {
foreach ( $custom_forms['post_types'] as $post_type ) {
add_filter( 'manage_edit-' . $post_type . '_columns', 'mltlngg_add_post_column' );
add_filter( 'manage_' . $post_type . '_posts_custom_column', 'mltlngg_post_column', 10, 3 );
add_action( 'rest_after_insert_' . $post_type, 'mltlngg_rest_after_insert_post', 10, 3 ); /* After rest-api apdate */
}
}
}
}
if ( ! function_exists( 'mltlngg_wcmmrc' ) ) {
/**
* Function delete language slug from woocommerce's ajax request
*
* @param bool $ajax Flag for ajax.
* @param string $request String for request.
* @return string $request
*/
function mltlngg_wcmmrc( $ajax, $request ) {
$request = esc_url_raw( add_query_arg( 'wc-ajax', $request, remove_query_arg( array( 'remove_item', 'add-to-cart', 'added-to-cart' ), home_url( '/' ) ) ) );
return $request;
}
}
if ( ! function_exists( 'mltlngg_admin_init' ) ) {
/**
* Plugin initialization in backend
*/
function mltlngg_admin_init() {
global $pagenow, $bws_plugin_info, $mltlngg_plugin_info, $bws_shortcode_list, $mltlngg_options;
if ( empty( $bws_plugin_info ) ) {
$bws_plugin_info = array(
'id' => '143',
'version' => $mltlngg_plugin_info['Version'],
);
}
/* add Multilanguage to global $bws_shortcode_list */
$bws_shortcode_list['mltlngg'] = array(
'name' => 'Multilanguage',
'js_function' => 'mltlngg_shortcode_init',
);
/* add 'Multilanguage switcher' into the Menu */
add_action( 'wp_update_nav_menu_item', 'mltlngg_wp_update_nav_menu_item', 10, 2 );
add_meta_box( 'mltlngg_language_switcher_box', esc_html__( 'Multilanguage switcher', 'multilanguage' ), 'mltlngg_language_switcher_box', 'nav-menus', 'side', 'high' );
if ( 'plugins.php' === $pagenow ) {
if ( function_exists( 'bws_plugin_banner_go_pro' ) ) {
bws_plugin_banner_go_pro( $mltlngg_options, $mltlngg_plugin_info, 'mltlngg', 'multilanguage', '0419dafcc237fe35489c8db63c899a38', '143', 'multilanguage' );
}
}
}
}
if ( ! function_exists( 'mltlngg_current_screen' ) ) {
/**
* Set cookie for gutenberg
*/
function mltlngg_current_screen() {
global $mltlngg_current_language;
if ( is_admin() ) {
if ( mltlngg_is_gutenberg_active() ) {
mltlngg_setcookie( $mltlngg_current_language );
}
}
}
}
if ( ! function_exists( 'mltlngg_language_attributes' ) ) {
/**
* Create language attributes for site
*
* @param string $output (Optional) String with lang attributes.
* @return string $output
*/
function mltlngg_language_attributes( $output = '' ) {
global $mltlngg_current_language;
if ( false !== strpos( $output, 'lang="' ) ) {
$output_lang = trim( $output, 'lang="' );
if ( $mltlngg_current_language !== $output_lang ) {
$output = str_replace( 'lang="' . $output_lang . '"', 'lang="' . str_replace( '_', '-', $mltlngg_current_language ) . '"', $output );
}
}
if ( false === strpos( $output, 'http://ogp.me/ns' ) ) {
$prefix = 'prefix="og: http://ogp.me/ns#"';
$output .= "\n\t" . $prefix;
}
return $output;
}
}
if ( ! function_exists( 'mltlngg_register_settings' ) ) {
/**
* Default Plugin settings
*/
function mltlngg_register_settings() {
global $mltlngg_plugin_info, $mltlngg_options, $wp_version;
$db_version = '0.3';
$update_option = false;
/* Add options to database */
if ( ! get_option( 'mltlngg_options' ) ) {
$options_default = mltlngg_get_options_default();
add_option( 'mltlngg_options', $options_default );
}
if ( empty( $mltlngg_plugin_info ) ) {
$file_dir = dirname( __FILE__ );
if ( ! function_exists( 'get_plugin_data' ) ) {
require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
}
$mltlngg_plugin_info = get_plugin_data( $file_dir . '/multilanguage.php' );
}
$mltlngg_options = get_option( 'mltlngg_options' );
/* Array merge incase this version has added new options */
if ( ! isset( $mltlngg_options['plugin_option_version'] ) || $mltlngg_options['plugin_option_version'] !== $mltlngg_plugin_info['Version'] ) {
/**
* Google_auto_translate param
*
* @deprecated since 1.3.7
* @todo remove after 21.07.2021
*/
if ( ! isset( $mltlngg_options['google_auto_translate'] ) ) {
if ( in_array( $mltlngg_options['language_switcher'], array( 'gt', 'gt-horizontal', 'gt-vertical' ), true ) ) {
$mltlngg_options['google_auto_translate'] = 1;
} else {
$mltlngg_options['google_auto_translate'] = 0;
}
}
$options_default = mltlngg_get_options_default();
$mltlngg_options = array_merge( $options_default, $mltlngg_options );
$mltlngg_options['plugin_option_version'] = $mltlngg_plugin_info['Version'];
/* show pro features */
$mltlngg_options['hide_premium_options'] = array();
$update_option = true;
if ( is_multisite() ) {
switch_to_blog( 1 );
register_uninstall_hook( __FILE__, 'mltlngg_delete_options' );
restore_current_blog();
} else {
register_uninstall_hook( __FILE__, 'mltlngg_delete_options' );
}
}
if ( ! isset( $mltlngg_options['plugin_db_version'] ) || $mltlngg_options['plugin_db_version'] !== $db_version ) {
mltlngg_plugin_db();
$mltlngg_options['plugin_db_version'] = $db_version;
$update_option = true;
}
if ( ! isset( $mltlngg_options['wp_version'] ) || $mltlngg_options['wp_version'] !== $wp_version ) {
$mltlngg_options['wp_version'] = $wp_version;
mltlngg_update_video_options();
$update_option = true;
}
$update_option = apply_filters( 'mltlngg_create_table_custom_field', $update_option );
if ( isset( $update_option ) ) {
update_option( 'mltlngg_options', $mltlngg_options );
}
}
}
if ( ! function_exists( 'mltlngg_get_options_default' ) ) {
/**
* Get default Plugin settings
*
* @return array $options_default
*/
function mltlngg_get_options_default() {
global $mltlngg_plugin_info, $wp_version, $mltlngg_languages, $wp_roles;
/* Set the default language is the same as the language of the WordPress localization */
foreach ( $mltlngg_languages as $one_lang ) { /* Search locale in the array of standard languages, source - languages.php */
$is_lang_exist = array_search( get_locale(), $one_lang );
if ( false !== $is_lang_exist ) { /* If the locale is found set the default language */
$language_default = $one_lang;
break;
}
}
if ( empty( $mltlngg_plugin_info ) ) {
$file_dir = dirname( __FILE__ );
if ( ! function_exists( 'get_plugin_data' ) ) {
require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
}
$mltlngg_plugin_info = get_plugin_data( $file_dir . '/multilanguage.php' );
}
/* If the language is not found or is not a standard, set English ('en_US') as the default language */
if ( ! isset( $language_default ) || null === $language_default ) {
$language_default = array( 'en', 'en_US', 'English', '' );
}
$enabled_roles = array();
$roles = $wp_roles->roles;
foreach ( $roles as $key => $role ) {
if ( ! empty( $role['capabilities']['edit_posts'] ) ) {
$enabled_roles[ $key ] = 1;
}
}
/* Set the default options */
$options_default = array(
'plugin_option_version' => $mltlngg_plugin_info['Version'],
'wp_version' => $wp_version,
'suggest_feature_banner' => 1,
'display_settings_notice' => 1,
'first_install' => strtotime( 'now' ),
'default_language' => $language_default[1],
'list_of_languages' => array(
array(
'locale' => $language_default[1],
'name' => $language_default[2],
'enable' => true,
'priority' => 1,
),
),
'save_mode' => 'manual',
'wp_localization' => 1,
'language_switcher' => 'drop-down-list',
'menu_language_switcher' => 'drop-down-list',
'search' => 'single',
'video_providers' => array(),
'translate_open_graph' => 0,
'display_alternative_link' => 0,
'hide_link_slug' => 0,
'google_auto_translate' => 0,
'enabled_roles' => $enabled_roles,
'translate_menu' => 1,
);
return $options_default;
}
}
/* Activation plugin function */
if ( ! function_exists( 'mltlngg_plugin_activate' ) ) {
/**
* Get default Plugin settings
*
* @param array $networkwide Flag for multisite.
*/
function mltlngg_plugin_activate( $networkwide ) {
global $wpdb;
/* Activation function for network */
if ( function_exists( 'is_multisite' ) && is_multisite() ) {
/* check if it is a network activation - if so, run the activation function for each blog id */
if ( $networkwide ) {
$old_blog = $wpdb->blogid;
/* Get all blog ids */
$blogids = $wpdb->get_col( "SELECT `blog_id` FROM $wpdb->blogs" );
foreach ( $blogids as $blog_id ) {
switch_to_blog( $blog_id );
_mltlngg_plugin_activate();
}
switch_to_blog( $old_blog );
return;
}
}
_mltlngg_plugin_activate();
/* Activation function for network, check if it is a network activation - if so, run the activation function for each blog id */
if ( is_multisite() ) {
switch_to_blog( 1 );
register_uninstall_hook( __FILE__, 'mltlngg_delete_options' );
restore_current_blog();
} else {
register_uninstall_hook( __FILE__, 'mltlngg_delete_options' );
}
}
}
if ( ! function_exists( 'mltlngg_new_blog' ) ) {
/**
* Activation function for new blog in multisite
*
* @param int $blog_id Blog ID.
* @param int $user_id User ID.
* @param string $domain Domain.
* @param string $path Path for site.
* @param int $site_id Site ID.
* @param string $meta Meta string.
*/
function mltlngg_new_blog( $blog_id, $user_id, $domain, $path, $site_id, $meta ) {
global $wpdb;
if ( is_plugin_active_for_network( 'multilanguage/multilanguage.php' ) ) {
$old_blog = $wpdb->blogid;
switch_to_blog( $blog_id );
_mltlngg_plugin_activate();
switch_to_blog( $old_blog );
}
}
}
if ( ! function_exists( '_mltlngg_plugin_activate' ) ) {
/**
* Create tables for translations when plugin is activate
*/
function _mltlngg_plugin_activate() {
global $wpdb, $mltlngg_options;
require_once ABSPATH . 'wp-admin/includes/upgrade.php';
mltlngg_register_settings();
/* Auto-add Multilanguage widget to active sidebar */
if ( is_dynamic_sidebar() ) { /* If there is an active sidebar */
$mltlngg_available_sidebars = get_option( 'sidebars_widgets' ); /* Get all active sidebars */
/* Delete from database old information about widget */
foreach ( $mltlngg_available_sidebars as $key1 => $one_sidebar ) {
if ( 'array_version' !== $key1 && isset( $one_sidebar ) ) {
$widget_exist = preg_grep( '/multi_language_widget-?\d*/', $one_sidebar );
if ( isset( $widget_exist ) ) {
foreach ( $widget_exist as $key2 => $one_widget ) {
unset( $mltlngg_available_sidebars[ $key1 ][ $key2 ] );
}
}
}
}
update_option( 'sidebars_widgets', $mltlngg_available_sidebars );
/* If more than one sidebar */
if ( count( $mltlngg_available_sidebars ) > 3 ) {
foreach ( $mltlngg_available_sidebars as $key => $val ) {
if ( is_array( $val ) && 'wp_inactive_widgets' !== $key && 'array_version' !== $key && ! preg_match( '/multi_language_widget-?\d*/', implode( ',', $val ) ) && preg_match( '/search.*/', implode( ',', $val ) ) ) { /* If there is no Multilanguage Widget and exist Search Widget in this sidebar */
array_unshift( $val, 'multi_language_widget-2' ); /* Adding Multilanguage Widget to the top of sidebar */
$mltlngg_available_sidebars[ $key ] = $val;
update_option( 'sidebars_widgets', $mltlngg_available_sidebars );
}
}
/* If only one sidebar */
} elseif ( 3 === count( $mltlngg_available_sidebars ) ) {
foreach ( $mltlngg_available_sidebars as $key => $val ) {
if ( is_array( $val ) && 'wp_inactive_widgets' !== $key && 'array_version' !== $key && ! preg_match( '/multi_language_widget-?\d*/', implode( ',', $val ) ) ) { /* If there is no Multilanguage Widget in this sidebar */
array_unshift( $val, 'multi_language_widget-2' ); /* Adding Multilanguage Widget to the top of sidebar */
$mltlngg_available_sidebars[ $key ] = $val;
update_option( 'sidebars_widgets', $mltlngg_available_sidebars );
}
}
}
$widget_options = get_option( 'widget_multi_language_widget' ); /* Get widget options */
if ( ! empty( $widget_options ) && ! isset( $widget_options[2] ) ) {
$widget_options[2] = array(
'wiget_title' => '',
'mltlngg_language_switcher' => 'drop-down-list',
); /* Set widget options */
update_option( 'widget_multi_language_widget', $widget_options );
}
}
if ( empty( $mltlngg_options ) ) {
$mltlngg_options = get_option( 'mltlngg_options' );
}
if ( isset( $mltlngg_options['deactivation'] ) ) {
/* update content */
$posts = $wpdb->get_results(
$wpdb->prepare(
'SELECT ' . $wpdb->posts . '.`ID`, ' . $wpdb->posts . '.`post_content`, ' . $wpdb->posts . '.`post_title`, ' . $wpdb->posts . '.`post_excerpt`
FROM ' . $wpdb->posts . ', `' . $wpdb->prefix . 'mltlngg_translate`
WHERE
`post_type` IN ("page", "post") AND
' . $wpdb->posts . '.`ID` = `' . $wpdb->prefix . 'mltlngg_translate`.`post_ID` AND
`post_modified` > %s',
$mltlngg_options['deactivation']
)
);
foreach ( $posts as $key => $value ) {
$wpdb->update(
$wpdb->prefix . 'mltlngg_translate',
array(
'post_content' => wp_encode_emoji( $value->post_content ),
'post_title' => $value->post_title,
'post_excerpt' => $value->post_excerpt,
),
array(
'post_ID' => $value->ID,
'language' => $mltlngg_options['default_language'],
),
array( '%s', '%s', '%s' ),
array( '%d', '%s' )
);
}
unset( $mltlngg_options['deactivation'] );
}
mltlngg_update_video_options();
update_option( 'mltlngg_options', $mltlngg_options );
}
}
if ( ! function_exists( 'mltlngg_plugin_db' ) ) {
/**
* Create tables when plugin is activate
*/
function mltlngg_plugin_db() {
global $wpdb;
require_once ABSPATH . 'wp-admin/includes/upgrade.php';
$mltlngg_sql =
'CREATE TABLE IF NOT EXISTS `' . $wpdb->prefix . 'mltlngg_translate` (
`ID` INT(6) UNSIGNED NOT NULL AUTO_INCREMENT,
`post_ID` INT(6) NOT NULL,
`post_content` longtext CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`post_excerpt` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`post_title` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`language` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
PRIMARY KEY (`ID`)
) DEFAULT CHARSET=utf8;';
dbDelta( $mltlngg_sql );
$mltlngg_sql =
'CREATE TABLE IF NOT EXISTS `' . $wpdb->prefix . 'mltlngg_terms_translate` (
`ID` INT(6) UNSIGNED NOT NULL AUTO_INCREMENT,
`term_ID` INT(6) NOT NULL,
`name` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
`language` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
PRIMARY KEY (`ID`)
) DEFAULT CHARSET=utf8;';
dbDelta( $mltlngg_sql );
$column_exists = $wpdb->query( 'SHOW COLUMNS FROM `' . $wpdb->prefix . "mltlngg_translate` LIKE 'post_excerpt';" );
if ( 0 === $column_exists ) {
$wpdb->query( 'ALTER TABLE `' . $wpdb->prefix . 'mltlngg_translate` ADD `post_excerpt` TEXT NOT NULL AFTER `post_content`' );
}
}
}
if ( ! function_exists( 'mltlngg_plugin_load' ) ) {
/**
* Added languages when plugin is activate
*/
function mltlngg_plugin_load() {
global $mltlngg_get_default_language, $mltlngg_enabled_languages_locale, $mltlngg_enabled_languages;
$mltlngg_options = get_option( 'mltlngg_options' );
if ( ! empty( $mltlngg_options ) ) {
$mltlngg_get_default_language = $mltlngg_options['default_language'];
$mltlngg_enabled_languages = array(); /* Array with all enabled languages */
$mltlngg_enabled_languages_locale = array(); /* Array with codes of all enabled languages */
if ( ! empty( $mltlngg_options['list_of_languages'] ) ) {
foreach ( $mltlngg_options['list_of_languages'] as $item ) {
if ( ! empty( $item['enable'] ) ) {
$mltlngg_enabled_languages[ $item['locale'] ] = $item;
$mltlngg_enabled_languages_locale[] = $item['locale'];
}
}
}
$is_admin = mltlngg_is_admin();
if ( $is_admin && empty( session_id() ) ) {
session_start(
array(
'read_and_close' => true,
)
);
}
/* Switch display language function */
mltlngg_get_display_language();
/* Internationalization */
load_plugin_textdomain( 'multilanguage', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
if ( isset( $_SERVER['REQUEST_URI'] ) && strpos( sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ), 'wp-json' ) ) {
return;
}
/*
* if not admin panel
* and not login/logout/ page
* redirect to URL with language code
*/
if ( ! $is_admin && isset( $_SERVER['REQUEST_URI'] ) && ! preg_match( '/\/?\w+\.{1}[a-z]{3,4}/', sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) ) && ! defined( 'WP_CLI' ) ) {
/* Change WordPress localization if the option is enabled */
if ( 1 === intval( $mltlngg_options['wp_localization'] ) ) {
add_filter( 'locale', 'mltlngg_switch_wp_locale' );
}
mltlngg_redirect();
} elseif ( true === $is_admin ) {
add_filter( 'locale', 'mltlngg_switch_wp_locale' );
}
}
}
}
if ( ! function_exists( 'mltlngg_get_display_language' ) ) {
/**
* Function for change display language
*/
function mltlngg_get_display_language() {
global $mltlngg_current_language, $mltlngg_old_language, $mltlngg_enabled_languages_locale, $mltlngg_enabled_languages, $mltlngg_get_default_language, $mltlngg_options;
if ( empty( $mltlngg_options ) ) {
$mltlngg_options = get_option( 'mltlngg_options' );
}
/* Do not change the language on the admin page if language changed in the frontend */
if ( mltlngg_is_admin() && 1 !== intval( $mltlngg_options['wp_localization'] ) ) {
$wp_locale = get_locale();
$mltlngg_current_language = ! empty( $wp_locale ) && in_array( $wp_locale, $mltlngg_enabled_languages_locale, true ) ? $wp_locale : 'en_US';
} else {
/* The language is changed via widget */
if ( isset( $_POST['mltlngg_change_display_lang'] ) && in_array( sanitize_text_field( wp_unslash( $_POST['mltlngg_change_display_lang'] ) ), $mltlngg_enabled_languages_locale, true ) ) {
if ( empty( $mltlngg_old_language ) && isset( $_COOKIE['mltlngg_language'] ) ) {
$mltlngg_old_language = sanitize_text_field( wp_unslash( $_COOKIE['mltlngg_language'] ) );/* Language before changing */
}
$mltlngg_current_language = sanitize_text_field( wp_unslash( $_POST['mltlngg_change_display_lang'] ) ); /* Language after changing */
$new_cookie = $mltlngg_current_language;
/* The language is entered in the url */
} elseif ( ! empty( $_GET['lang'] ) && in_array( sanitize_text_field( wp_unslash( $_GET['lang'] ) ), $mltlngg_enabled_languages_locale, true ) ) {
$mltlngg_current_language = sanitize_text_field( wp_unslash( $_GET['lang'] ) );
$new_cookie = $mltlngg_current_language;
} elseif ( isset( $_SERVER['REQUEST_URI'] ) && preg_match( '~(?<=/)(' . implode( '|', $mltlngg_enabled_languages_locale ) . ')(?![\d\w-])~', sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ), $matches ) ) {
$mltlngg_current_language = trim( $matches[1], '/' );
$new_cookie = $mltlngg_current_language;
/* The language is not changed, leave the current language from session */
} elseif ( isset( $_COOKIE['mltlngg_language'] ) && in_array( sanitize_text_field( wp_unslash( $_COOKIE['mltlngg_language'] ) ), $mltlngg_enabled_languages_locale, true ) && count( $mltlngg_enabled_languages ) > 1 ) {
$mltlngg_current_language = sanitize_text_field( wp_unslash( $_COOKIE['mltlngg_language'] ) );
/* The language is never chosen, assign the default language from options */
} else {
$mltlngg_current_language = $mltlngg_get_default_language;
$params = explode( '/', trim( sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ), '/' ) );
if ( is_array( $params ) && ! empty( $params ) ) {
foreach ( $mltlngg_enabled_languages_locale as $locale ) {
$key = array_search( $locale, $params );
if ( false !== $key ) {
$mltlngg_current_language = $params[ $key ];
break;
}
}
}
$new_cookie = $mltlngg_current_language;
}
}
if ( isset( $new_cookie ) ) {
mltlngg_setcookie( $new_cookie );
}
}
}
if ( ! function_exists( 'mltlngg_setcookie' ) ) {
/**
* Function for set cookie for site
*
* @param string $new_cookie Cookie slug.
*/
function mltlngg_setcookie( $new_cookie ) {
$home_url = get_option( 'home' );
$home_url_parsed = mltlngg_parse_url( $home_url );
$host = $home_url_parsed['host'];
$host = preg_replace( '~^(www\.)~', '', $host );
setcookie( 'mltlngg_language', $new_cookie, time() + 30 * DAY_IN_SECONDS, '/', '.' . $host, is_ssl() );
}
}
if ( ! function_exists( 'mltlngg_switch_wp_locale' ) ) {
/**
* Function for change WordPress localization when change display language
*
* @param string $lang (Optional) Language slug.
* @return string Language slug.
*/
function mltlngg_switch_wp_locale( $lang = 'en_US' ) {
global $mltlngg_current_language, $mltlngg_options;
return ( ! empty( $mltlngg_current_language ) ) ? $mltlngg_current_language : $lang;
}
}
if ( ! function_exists( 'mltlngg_redirect' ) ) {
/**
* Function for redirect when display language is changed
*/
function mltlngg_redirect() {
global $mltlngg_enabled_languages, $mltlngg_options, $mltlngg_current_language, $mltlngg_get_default_language;
/* gutenberg save post */
/* Maybe remove because it prevents the url from changing if there is a post type in the title */
/*if ( mltlngg_is_rest_api() ) {
return;
}*/
if ( empty( $mltlngg_options ) ) {
$mltlngg_options = get_option( 'mltlngg_options' );
}
if ( ! function_exists( 'is_plugin_active' ) ) {
require_once ABSPATH . 'wp-admin/includes/plugin.php';
}
if (
( isset( $_POST['wp_customize'] ) && 'on' === sanitize_text_field( wp_unslash( $_POST['wp_customize'] ) ) ) ||
( is_plugin_active( 'nextgen-gallery/nggallery.php' ) && isset( $_REQUEST['photocrati_ajax'] ) ) ||
1 >= count( $mltlngg_enabled_languages )
) {
return;
}
if ( is_plugin_active( 'woocommerce/woocommerce.php' ) && isset( $_SERVER['REQUEST_URI'] ) && preg_match( '/\/wc-api\/v([1-3]{1})(.*)?/', sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) ) ) {
/* WooCommerce REST API */
return;
}
if ( strpos( sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ), 'wp-json' ) ) {
return;
}
$url_parts = mltlngg_parse_url();
$request_url = $url_parts['full_url'];
$redirect_url = apply_filters( 'mltlngg_redirect_url', mltlngg_get_lang_link() );
$redirect = false;
if ( rtrim( preg_replace( '~^http(s)?://~U', '', $redirect_url ), '/' ) !== rtrim( preg_replace( '~^http(s)?://~U', '', $request_url ), '/' ) ) {
$redirect = true;
}
$redirect = apply_filters( 'mltlngg_redirect_flag', $redirect, $request_url, $redirect_url );
if ( $redirect && filter_var( $redirect_url, FILTER_VALIDATE_URL ) ) {
wp_safe_redirect( $redirect_url );
exit();
}
}
}
if ( ! function_exists( 'mltlngg_server_parts' ) ) {
/**
* Function for get server info
*
* @param bool $use_forwarded_host Flag for use HTTP_X_FORWARDED_HOST or HTTP_HOST.
* @return array $result
*/
function mltlngg_server_parts( $use_forwarded_host = false ) {
$s = $_SERVER;
$ssl = ( ! empty( $s['HTTPS'] ) && 'on' === $s['HTTPS'] );
$sp = strtolower( $s['SERVER_PROTOCOL'] );
$scheme = substr( $sp, 0, strpos( $sp, '/' ) ) . ( ( $ssl ) ? 's' : '' );
$port = $s['SERVER_PORT'];
$port = ( ( ! $ssl && '80' === $port ) || ( $ssl && '443' === $port ) ) ? '' : ':' . $port;
$host = ( $use_forwarded_host && isset( $s['HTTP_X_FORWARDED_HOST'] ) ) ? $s['HTTP_X_FORWARDED_HOST'] : ( isset( $s['HTTP_HOST'] ) ? $s['HTTP_HOST'] : null );
$host = isset( $host ) ? $host : $s['SERVER_NAME'] . $port;
$url_origin = $scheme . '://' . $host;
$full_url = $url_origin . $s['REQUEST_URI'];
$result = array(
'scheme' => $scheme,
'port' => $port,
'host' => $host,
'url_origin' => $url_origin,
'full_url' => $full_url,
);
return $result;
}
}
if ( ! function_exists( 'mltlngg_parse_url' ) ) {
/**
* Function for get url info
*
* @param bool $url (Optional) URL for parse.
* @return array $url_parsed
*/
function mltlngg_parse_url( $url = '' ) {
global $mltlngg_enabled_languages_locale;
$home_url = get_option( 'home' );
if ( empty( $url ) ) {
$server_parts = mltlngg_server_parts();
$url = $server_parts['full_url'];
}
$scheme = wp_parse_url( $url, PHP_URL_SCHEME );
if ( empty( $scheme ) ) {
$scheme = is_ssl() ? 'https' : 'http';
}
$scheme .= '://';
$host = wp_parse_url( $url, PHP_URL_HOST );
$home_host = wp_parse_url( $home_url, PHP_URL_HOST );
$port = wp_parse_url( $url, PHP_URL_PORT );
$port = empty( $port ) ? '' : ':' . $port;
$full_host = $scheme . $host . $port;
$host_pattern = '~^((.*)' . preg_quote( $home_host . $port, '~' ) . ')~';
$home_dir = preg_replace( $host_pattern, '', $home_url );
$home_url_pattern = '~^(' . preg_quote( $full_host . $home_dir, '~' ) . ')~U';
$request_uri = preg_replace( $home_url_pattern, '', $url );
$reg_exp = '~(?<=/)(' . implode( '|', $mltlngg_enabled_languages_locale ) . ')(?![\d\w-])~';
preg_match_all( $reg_exp, $request_uri, $matches );
if ( isset( $matches ) && count( $matches[0] ) > 1 ) {
/* too many language locales, remove all except the first one */
unset( $matches[0][0] );
$reg_exp = '~(/' . implode( '|/', $matches[0] ) . ')(?![\d\w-])~';
$request_uri = preg_replace( $reg_exp, '', $request_uri );
}
$url_parsed = array(
'scheme' => $scheme, /* http:// || https:// */
'host' => $host, /* www.example.com */
'port' => $port, /* :80 */
'full_host' => $full_host, /* http://www.example.com:80 */
'home_dir' => $home_dir, /* /wp - subsite directory or wordpress subdirectory */
'request_uri' => $request_uri, /* /page-sample?paged=2 */
'full_url' => $full_host . $home_dir . $request_uri, /* http://www.example.com:80/wp/page-sample?paged=2 */
);
return apply_filters( 'mltlngg_parse_url', $url_parsed );
}
}
if ( ! function_exists( 'mltlngg_remove_link_lang' ) ) {
/**
* Remove all language slugs from the given link
*
* @param bool $url (Optional) URL for remove language slugs.
* @return string $url
*/
function mltlngg_remove_link_lang( $url = '' ) {
global $mltlngg_enabled_languages_locale;
$is_custom_permalink = get_option( 'permalink_structure' );
$url_parsed = mltlngg_parse_url( $url );
$url = $url_parsed['full_url'];
$url = apply_filters( 'mltlngg_url_before_lang_remove', $url );
if ( $is_custom_permalink ) {
$locales = implode( '|', $mltlngg_enabled_languages_locale );
$url = preg_replace( '~/(' . $locales . ')(?![\d\w-])~', '', $url );
} else {
$url = remove_query_arg( 'lang', $url );
}
$url = apply_filters( 'mltlngg_url_after_lang_remove', $url );
return $url;
}
}
if ( ! function_exists( 'mltlngg_get_lang_link' ) ) {
/**
* Localize given link
*
* @param array $args (Optional) Args array.
* @return string $url
*/
function mltlngg_get_lang_link( $args = array() ) {
global $mltlngg_options, $mltlngg_current_language, $mltlngg_enabled_languages, $mltlngg_enabled_languages_locale, $mltlngg_get_default_language;
$defaults = array(
'lang' => '',
'url' => '',
'force' => false,
);
extract( wp_parse_args( $args, $defaults ) );
if ( empty( $mltlngg_options ) ) {
$mltlngg_options = get_option( 'mltlngg_options' );
}
$url_parsed = mltlngg_parse_url( $url );
$url = $url_parsed['full_url'];
if ( empty( $lang ) ) {
$lang = $mltlngg_current_language;
}
if ( ! in_array( $lang, $mltlngg_enabled_languages_locale, true ) ) {
$lang = $mltlngg_get_default_language;
}
$hide_lang = ! ! ( ( 'hide' === $force ) || ( $lang === $mltlngg_get_default_language && $mltlngg_options['hide_link_slug'] && 'display' !== $force ) );
/* Clean all labguage slugs */
$url = mltlngg_remove_link_lang( $url );
$url_parsed = mltlngg_parse_url( $url );
$is_custom_permalink = get_option( 'permalink_structure' );
if ( $is_custom_permalink ) {
$home_url = get_option( 'home' );
$locale_string = ( $hide_lang ) ? '' : '/' . $lang;
if ( ! $hide_lang ) {
$url = $home_url . $locale_string . $url_parsed['request_uri'];
} else {
$url = $home_url . $url_parsed['request_uri'];
}
} else {
if ( ! $hide_lang ) {
$url = add_query_arg( 'lang', $lang, $url );
}
if ( 'page' === get_option( 'show_on_front' ) ) {
$homepage_id = get_option( 'page_on_front' );
$url_parsed = mltlngg_parse_url( $url );
parse_str( str_replace( '/?', '', $url_parsed['request_uri'] ), $params );
if ( isset( $params['lang'] ) && 1 === count( $params ) ) {
/* add page id param if language param exist */
$url = add_query_arg( 'page_id', $homepage_id, $url );
} elseif ( ! isset( $params['lang'] ) && isset( $params['page_id'] ) && $homepage_id === $params['page_id'] && 1 === count( $params ) ) {
/* delete homepage id param if language param is missing */
$url = remove_query_arg( 'page_id', $url );
}
}
}
$url = apply_filters( 'mltlngg_get_lang_link', $url, $lang, $force );
return $url;
}
}
if ( ! function_exists( 'mltlngg_get_lang_code' ) ) {
/**
* Search in enabled languages for specified lang slug and return corresponding language code
*
* @param string $lang_slug (Optional) Slug for current language.
* @return string $lang_slug
*/
function mltlngg_get_lang_code( $lang_slug = '' ) {
global $mltlngg_languages, $mltlngg_enabled_languages, $mltlngg_current_language;
if ( empty( $lang_slug ) ) {
$lang_slug = $mltlngg_current_language;
}
foreach ( $mltlngg_languages as $language ) {
if ( isset( $mltlngg_enabled_languages[ $language[1] ] ) && $language[1] === $lang_slug ) {
return $language[0];
}
}
$parts = explode( '_', $lang_slug );
return strtolower( $parts[0] );
}
}
if ( ! function_exists( 'mltlngg_wp_head' ) ) {
/**
* Added meta tags and alternate links to header
*/
function mltlngg_wp_head() {
mltlngg_add_translated_meta_tags();
mltlngg_alternate_links();
}
}
if ( ! function_exists( 'mltlngg_alternate_links' ) ) {
/**
* Display alternate links in header
*/
function mltlngg_alternate_links() {
global $mltlngg_enabled_languages, $mltlngg_get_default_language, $mltlngg_options;
if ( ! $mltlngg_options['display_alternative_link'] ) {
return false;
}
$defaults = array( 'x-default', $mltlngg_get_default_language );
$link_attr_args = array(
array(
'hreflang' => 'x-default',
'link_param' => $mltlngg_get_default_language,