/htdocs/wp-content/plugins/sitepress-multilingual-cms/sitepress.class.php

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<?php
class SitePress{

    private $settings;
    private $active_languages = array();
    private $this_lang;
    private $wp_query;
    private $admin_language = null;
    private $user_preferences = array();
    public $queries = array();

    function __construct(){
        global $wpdb, $pagenow;
        
        $this->settings = get_option('icl_sitepress_settings');
        
        if(is_null($pagenow) && is_multisite()){
            include ICL_PLUGIN_PATH . '/inc/hacks/vars-php-multisite.php';
        }  

        if(false != $this->settings){
            $this->verify_settings();
        }
        if(isset($_GET['icl_action'])){
            require_once ABSPATH . WPINC . '/pluggable.php';
            if($_GET['icl_action']=='reminder_popup'){
                add_action('init', array($this, 'reminders_popup'));
            }
            elseif($_GET['icl_action']=='dismiss_help'){
                $this->settings['dont_show_help_admin_notice'] = true;
                $this->save_settings();
            }elseif($_GET['icl_action']=='dbdump' ){
                include_once ICL_PLUGIN_PATH . '/inc/functions-troubleshooting.php';
                add_action('init', 'icl_troubleshooting_dumpdb');                                
            }
        }

        if(isset($_GET['page']) && $_GET['page']== ICL_PLUGIN_FOLDER . '/menu/troubleshooting.php' && isset($_GET['debug_action'])){
            ob_start();
        }

        if(isset($_REQUEST['icl_ajx_action'])){
            add_action('init', array($this, 'ajax_setup'));
        }
        add_action('admin_footer', array($this, 'icl_nonces'));
        
        // Process post requests
        if(!empty($_POST)){
            add_action('init', array($this,'process_forms'));
        }

        add_action('plugins_loaded', array($this,'init'), 1);
        add_action('plugins_loaded', array($this,'initialize_cache'), 0);

        add_action('admin_print_scripts', array($this,'js_scripts_setup'));
        add_action('admin_print_styles', array($this,'css_setup'));
        
        // Administration menus
        add_action('admin_menu', array($this, 'administration_menu'));        

        add_action('init', array($this,'plugin_localization'));
        
        if($this->settings['existing_content_language_verified']){

            // Post/page language box
            if($pagenow == 'post.php' || $pagenow == 'post-new.php'){
                add_action('admin_head', array($this,'post_edit_language_options'));            
            }
            
            // Post/page save actions
            add_action('save_post', array($this,'save_post_actions'), 10, 2); 
            //add_action('update_post_metadata', array($this,'pre_update_post_meta'), 10, 5); 
            add_action('updated_post_meta', array($this,'update_post_meta'), 100, 4); 
            add_action('added_post_meta', array($this,'update_post_meta'), 100, 4); 
            add_action('updated_postmeta', array($this,'update_post_meta'), 100, 4); // ajax
            add_action('added_postmeta', array($this,'update_post_meta'), 100, 4); // ajax
            add_action('delete_postmeta', array($this,'delete_post_meta')); // ajax
            
            //add_filter('get_post_metadata', array($this,'get_post_metadata_filter'), 10, 4); 
            
            // filter user taxonomy input
            add_filter('pre_post_tax_input', array($this, 'validate_taxonomy_input'));
            
            // Post/page delete actions
            add_action('delete_post', array($this,'delete_post_actions'));
            add_action('wp_trash_post', array($this,'trash_post_actions'));
            add_action('untrashed_post', array($this,'untrashed_post_actions'));

            add_filter('posts_join', array($this,'posts_join_filter'));
            add_filter('posts_where', array($this,'posts_where_filter'));
            add_filter('comment_feed_join', array($this,'comment_feed_join'));
            
            add_filter('comments_clauses', array($this, 'comments_clauses'), 10, 2);

            // Allow us to filter the Query before vars before the posts query is being built and executed
            add_filter('pre_get_posts', array($this, 'pre_get_posts'));

            // show untranslated posts
            if(!is_admin() && isset($this->settings['show_untranslated_blog_posts']) &&
                    $this->settings['show_untranslated_blog_posts'] && $this->get_current_language() != $this->get_default_language()){
                add_filter('the_posts', array($this, 'the_posts'));
            }

            if($pagenow == 'edit.php'){
                add_action('admin_footer', array($this,'language_filter'));
            }


            add_filter('get_pages', array($this, 'exclude_other_language_pages2'));
            add_filter('wp_dropdown_pages', array($this, 'wp_dropdown_pages'));



            // posts and pages links filters
            add_filter('post_link', array($this, 'permalink_filter'),1,2);
            add_filter('post_type_link', array($this, 'permalink_filter'),1,2);
            add_filter('page_link', array($this, 'permalink_filter'),1,2);

            if(version_compare(preg_replace('#-RC[0-9]+(-[0-9]+)?$#', '', $GLOBALS['wp_version']), '3.1', '<')){
                add_filter('category_link', array($this, 'category_permalink_filter'),1,2);
                add_filter('tag_link', array($this, 'tax_permalink_filter'),1,2);
            }

            add_filter('term_link', array($this, 'tax_permalink_filter'),1,2);

            add_filter('get_comment_link', array($this, 'get_comment_link_filter'));

            add_action('create_term',  array($this, 'create_term'),1, 2);
            add_action('edit_term',  array($this, 'create_term'),1, 2);
            add_action('delete_term',  array($this, 'delete_term'),1,3);
            
            add_action('get_term',  array($this, 'get_term_filter'),1,2);
            
            add_filter('get_terms_args', array($this, 'get_terms_args_filter'));
            
            // filters terms by language
            if(version_compare($GLOBALS['wp_version'], '3.1', '>=')){
                add_filter('terms_clauses', array($this, 'terms_clauses'));    
            }else{
                add_filter('list_terms_exclusions', array($this, 'exclude_other_terms'),1,2);     
            }

            // allow adding terms with the same name in different languages
            add_filter("pre_term_name", array($this, 'pre_term_name'), 1, 2);
            // allow adding categories with the same name in different languages
            add_action('admin_init', array($this, 'pre_save_category'));


            // custom hook for adding the language selector to the template
            add_action('icl_language_selector', array($this, 'language_selector'));

            // front end js
            add_action('wp_head', array($this, 'front_end_js'));

            add_action('wp_head', array($this,'rtl_fix'));
            add_action('admin_print_styles', array($this,'rtl_fix'));

            add_action('restrict_manage_posts', array($this, 'restrict_manage_posts'));

            add_filter('get_edit_post_link', array($this, 'get_edit_post_link'), 1, 3);
            add_filter('get_edit_term_link', array($this, 'get_edit_term_link'), 1, 4);

            // short circuit get default category
            add_filter('pre_option_default_category', array($this, 'pre_option_default_category'));
            add_filter('update_option_default_category', array($this, 'update_option_default_category'), 1, 2);

            add_filter('the_category', array($this,'the_category_name_filter'));
            add_filter('get_terms', array($this,'get_terms_filter'));
            add_filter('get_the_terms', array($this, 'get_the_terms_filter'), 10, 3);
            
            add_filter('single_cat_title', array($this,'the_category_name_filter'));
            add_filter('term_links-category', array($this,'the_category_name_filter'));

            add_filter('term_links-post_tag', array($this,'the_category_name_filter'));
            add_filter('tags_to_edit', array($this,'the_category_name_filter'));
            add_filter('single_tag_title', array($this,'the_category_name_filter'));

            // adjacent posts links
            add_filter('get_previous_post_join', array($this,'get_adjacent_post_join'));
            add_filter('get_next_post_join', array($this,'get_adjacent_post_join'));
            add_filter('get_previous_post_where', array($this,'get_adjacent_post_where'));
            add_filter('get_next_post_where', array($this,'get_adjacent_post_where'));

            // feeds links
            add_filter('feed_link', array($this,'feed_link'));

            // commenting links
            add_filter('post_comments_feed_link', array($this,'post_comments_feed_link'));
            add_filter('trackback_url', array($this,'trackback_url'));
            add_filter('user_trailingslashit', array($this,'user_trailingslashit'),1, 2);

            // date based archives
            add_filter('year_link', array($this,'archives_link'));
            add_filter('month_link', array($this,'archives_link'));
            add_filter('day_link', array($this,'archives_link'));
            add_filter('getarchives_join', array($this,'getarchives_join'));
            add_filter('getarchives_where', array($this,'getarchives_where'));
            add_filter('pre_option_home', array($this,'pre_option_home'));

            if (!is_admin()) {
                add_filter('attachment_link', array($this, 'attachment_link_filter'), 10, 2);
            }
            
            // Filter custom type archive link (since WP 3.1)
            add_filter('post_type_archive_link', array($this,'post_type_archive_link_filter'), 10, 2);
            
            add_filter('author_link', array($this,'author_link'));
            
            add_filter('wp_unique_post_slug', array($this, 'wp_unique_post_slug'), 100, 5);
            

            add_filter('home_url', array($this, 'home_url'), 1, 4) ;

            // language negotiation
            add_action('query_vars', array($this,'query_vars'));

            //
            add_filter('language_attributes', array($this, 'language_attributes'));

            add_action('locale', array($this, 'locale'));

            if(isset($_GET['____icl_validate_domain'])){ echo '<!--'.get_option('home').'-->'; exit; }

            add_filter('pre_option_page_on_front', array($this,'pre_option_page_on_front'));
            add_filter('pre_option_page_for_posts', array($this,'pre_option_page_for_posts'));

            add_filter('option_sticky_posts', array($this,'option_sticky_posts'));

            add_filter('request', array($this,'request_filter'));

            add_action('wp_head', array($this,'set_wp_query'));

            add_action('show_user_profile', array($this, 'show_user_options'));
            add_action('personal_options_update', array($this, 'save_user_options'));

            // column with links to translations (or add translation) - low priority
            add_action('init', array($this,'configure_custom_column'), 1010);   // accommodate Types init@999         
            


            // adjust queried categories and tags ids according to the language
            if($this->settings['auto_adjust_ids']){
                add_action('parse_query', array($this, 'parse_query'));
                add_action('wp_list_pages_excludes', array($this, 'adjust_wp_list_pages_excludes'));
                if(!is_admin()){
                    add_filter('get_term', array($this,'get_term_adjust_id'), 1, 1);
                    add_filter('category_link', array($this,'category_link_adjust_id'), 1, 2);
                    add_filter('get_terms', array($this,'get_terms_adjust_ids'), 1, 3);
                    add_filter('get_pages', array($this,'get_pages_adjust_ids'), 1, 2);
                }
            }

            if(!is_admin()){
                add_action('wp_head', array($this, 'meta_generator_tag'));
            }

            require_once ICL_PLUGIN_PATH . '/inc/wp-nav-menus/iclNavMenu.class.php';
            $iclNavMenu = new iclNavMenu;

            if(is_admin() || defined('XMLRPC_REQUEST') || preg_match('#wp-comments-post\.php$#', $_SERVER['REQUEST_URI'])){
                global $iclTranslationManagement, $ICL_Pro_Translation;
                $iclTranslationManagement = new TranslationManagement;
                $ICL_Pro_Translation = new ICL_Pro_Translation();                 
            }
            
            add_action('wp_login', array($this, 'reset_admin_language_cookie'));
            
            add_action('template_redirect', array($this, 'setup_canonical_urls'), 100);
            
            add_action('init', array($this, '_taxonomy_languages_menu'), 99); //allow hooking in            
            
            if($this->settings['seo']['head_langs']){
                add_action('wp_head', array($this, 'head_langs'));    
            }
            

        } //end if the initial language is set - existing_content_language_verified

        add_action('wp_dashboard_setup', array($this, 'dashboard_widget_setup'));
        if(is_admin() && $pagenow == 'index.php'){
            add_action('icl_dashboard_widget_notices', array($this, 'print_translatable_custom_content_status'));
        }

        
        add_filter('core_version_check_locale', array($this, 'wp_upgrade_locale'));
        
        if($pagenow == 'post.php' && isset($_REQUEST['action']) && $_REQUEST['action']=='edit' && isset($_GET['post'])){
            add_action('init', '_icl_trash_restore_prompt');
        }
        
        add_action('init', array($this, 'js_load'), 2); // enqueue scripts - higher priority
        
    }

    function init(){
        global $wpdb;
        
        $this->get_user_preferences();
        
        // // default value for theme_localization_type OR
        // reset theme_localization_type if string translation was on (theme_localization_type was set to 2) and then it was deactivated
        /*
        if(
            !isset($this->settings['theme_localization_type']) ||
            isset($this->settings['theme_localization_type']) && $this->settings['theme_localization_type'] == 1 && !defined('WPML_ST_VERSION')
        ){
            if(!defined('WPML_DOING_UPGRADE')){
                $this->settings['theme_localization_type'] = 2;    
            }
            
        } 
        */
               
        $this->set_admin_language();
        //configure callbacks for plugin menu pages
        if(defined('WP_ADMIN') && isset($_GET['page']) && 0 === strpos($_GET['page'],basename(ICL_PLUGIN_PATH).'/')){
            add_action('icl_menu_footer', array($this, 'menu_footer'));
        }
        if($this->settings['existing_content_language_verified']){
            if(defined('WP_ADMIN')){
                if(isset($_GET['lang'])){
                    $this->this_lang = rtrim(strip_tags($_GET['lang']),'/');    
                    $al = $this->get_active_languages();
                    $al['all'] = true;
                    if(empty($al[$this->this_lang])){
                        $this->this_lang = $this->get_default_language();
                    }
                // force default language for string translation
                // we also make sure it's not saved in the cookie
                }elseif(isset($_GET['page']) && 
                    ((defined('WPML_ST_FOLDER') && $_GET['page'] == WPML_ST_FOLDER . '/menu/string-translation.php') || 
                    (defined('WPML_TM_FOLDER') && $_GET['page'] == WPML_TM_FOLDER . '/menu/translations-queue.php'))
                    ){
                    $this->this_lang = $this->get_default_language();                        
                }elseif(defined('DOING_AJAX')) {
                    $al = $this->get_active_languages();
                    if(isset($_POST['lang']) && isset($al[$_POST['lang']])){
                        $this->this_lang = $_POST['lang'];    
                    }else{
                        $this->this_lang = $this->get_language_cookie();    
                    }                    
                }elseif($lang = $this->get_admin_language_cookie()){
                    $this->this_lang = $lang;                                    
                }else{
                    $this->this_lang = $this->get_default_language();
                }  
                if((isset($_GET['admin_bar']) && $_GET['admin_bar']==1) && (!isset($_GET['page']) || !defined('WPML_ST_FOLDER') || $_GET['page'] != WPML_ST_FOLDER . '/menu/string-translation.php')){
                    $this->set_admin_language_cookie();              
                }
            }else{
                $al = $this->get_active_languages();
                foreach($al as $l){
                    $active_languages[] = $l['code'];
                }
                $active_languages[] = 'all';
                $s = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']=='on'?'s':'';
                $request = 'http' . $s . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
                $home = get_option('home');
                if($s){
                    $home = preg_replace('#^http://#', 'https://', $home);    
                }                
                $url_parts = parse_url($home);
                $blog_path = !empty($url_parts['path'])?$url_parts['path']:'';
                switch($this->settings['language_negotiation_type']){
                    case 1:
                        $path  = str_replace($home,'',$request);
                        $parts = explode('?', $path);
                        $path = $parts[0];
                        $exp = explode('/',trim($path,'/'));

                        if(in_array($exp[0], $active_languages)){
                            $this->this_lang = $exp[0];

                            // before hijiking the SERVER[REQUEST_URI]
                            // override the canonical_redirect action
                            // keep a copy of the original request uri
                            remove_action('template_redirect', 'redirect_canonical');
                            global $_icl_server_request_uri;
                            $_icl_server_request_uri = $_SERVER['REQUEST_URI'];
                            add_action('template_redirect', 'icl_redirect_canonical_wrapper', 11);
                            function icl_redirect_canonical_wrapper(){
                                global $_icl_server_request_uri, $wp_query;
                                $requested_url  = ( !empty($_SERVER['HTTPS'] ) && strtolower($_SERVER['HTTPS']) == 'on' ) ? 'https://' : 'http://';
                                $requested_url .= $_SERVER['HTTP_HOST'];
                                $requested_url .= $_icl_server_request_uri;
                                redirect_canonical($requested_url);

                                /*
                                if($wp_query->query_vars['error'] == '404'){
                                    $wp_query->is_404 = true;
                                    $template = get_404_template();
                                    include($template);
                                    exit;
                                }
                                */

                            }
                            //

                            //deal with situations when template files need to be called directly
                            add_action('template_redirect', array($this, '_allow_calling_template_file_directly'));

                            //$_SERVER['REQUEST_URI'] = preg_replace('@^'. $blog_path . '/' . $this->this_lang.'@i', $blog_path ,$_SERVER['REQUEST_URI']);

                            // Check for special case of www.example.com/fr where the / is missing on the end
                            $parts = parse_url($_SERVER['REQUEST_URI']);
                            if(strlen($parts['path']) == 0){
                                $_SERVER['REQUEST_URI'] = '/' . $_SERVER['REQUEST_URI'];
                            }
                        }else{
                            $this->this_lang = $this->get_default_language();
                        }
                        break;
                    case 2:
                        $exp = explode('.', $_SERVER['HTTP_HOST']);
                        $__l = array_search('http' . $s . '://' . $_SERVER['HTTP_HOST'] . $blog_path, $this->settings['language_domains']);
                        $this->this_lang = $__l?$__l:$this->get_default_language();
                        if(defined('ICL_USE_MULTIPLE_DOMAIN_LOGIN') && ICL_USE_MULTIPLE_DOMAIN_LOGIN){
                            include ICL_PLUGIN_PATH . '/modules/multiple-domains-login.php';
                        }
                        add_filter('allowed_redirect_hosts', array($this, 'allowed_redirect_hosts'));
                        break;
                    case 3:
                    default:
                        if(isset($_GET['lang'])){
                            $this->this_lang = preg_replace("/[^0-9a-zA-Z-]/i", '',strip_tags($_GET['lang']));
                        // set the language based on the content id - for short links
                        }elseif(isset($_GET['page_id'])){
                            $this->this_lang = $wpdb->get_var($wpdb->prepare("SELECT language_code FROM {$wpdb->prefix}icl_translations WHERE element_type='post_page' AND element_id=%d", $_GET['page_id']));
                        }elseif(isset($_GET['p'])){
                            $post_type = $wpdb->get_var($wpdb->prepare("SELECT post_type FROM {$wpdb->posts} WHERE ID=%d", $_GET['p']));
                            $this->this_lang = $wpdb->get_var($wpdb->prepare("SELECT language_code FROM {$wpdb->prefix}icl_translations WHERE element_type=%s AND element_id=%d",
                                'post_' . $post_type, $_GET['p']));
                        }elseif(isset($_GET['cat_ID'])){
                            $cat_tax_id = $wpdb->get_var($wpdb->prepare("SELECT term_taxonomy_id FROM {$wpdb->term_taxonomy} WHERE term_id=%d AND taxonomy=%s",
                                $_GET['cat_ID'], 'category'));
                            $this->this_lang = $wpdb->get_var($wpdb->prepare("SELECT language_code FROM {$wpdb->prefix}icl_translations
                                WHERE element_type='tax_category' AND element_id=%d", $cat_tax_id));
                        }elseif(isset($_GET['tag'])){
                            $tag_tax_id = $wpdb->get_var($wpdb->prepare("
                                SELECT x.term_taxonomy_id FROM {$wpdb->term_taxonomy} x JOIN {$wpdb->terms} t ON t.term_id = x.term_id
                                WHERE t.slug=%s AND x.taxonomy='post_tag'",
                                $_GET['tag']));
                            $this->this_lang = $wpdb->get_var($wpdb->prepare("SELECT language_code FROM {$wpdb->prefix}icl_translations
                                WHERE element_type='tax_post_tag' AND element_id=%d", $tag_tax_id));
                        }
                        //
                        if(!isset($_GET['lang']) && ($this->this_lang && $this->this_lang != $this->get_default_language())){
                            if(!isset($GLOBALS['wp_rewrite'])){
                                require_once ABSPATH . WPINC . '/rewrite.php';
                                $GLOBALS['wp_rewrite'] = new WP_Rewrite();
                            }
                            define('ICL_DOING_REDIRECT', true);
                            if(isset($_GET['page_id'])){
                                wp_redirect(get_page_link($_GET['page_id']), '301');
                                exit;
                            }elseif(isset($_GET['p'])){
                                wp_redirect(get_permalink($_GET['p']), '301');
                                exit;
                            }elseif(isset($_GET['cat_ID'])){
                                wp_redirect(get_term_link( intval($_GET['cat_ID']), 'category' ));
                                exit;
                            }elseif(isset($_GET['tag'])){
                                wp_redirect(get_term_link( $_GET['tag'], 'post_tag' ));
                                exit;
                            }else{
                                global $wp_taxonomies;
                                if(isset($this->settings['taxonomies_sync_option'])){
                                    $taxs = array_keys((array)$this->settings['taxonomies_sync_option']);
                                    foreach($taxs as $t){
                                        if(isset($_GET[$t])){
                                            $term_obj = $wpdb->get_row($wpdb->prepare(
                                                "SELECT * FROM {$wpdb->terms} t JOIN {$wpdb->term_taxonomy} x ON t.term_id = x.term_id
                                                WHERE t.slug=%s AND x.taxonomy=%s"
                                                , $_GET[$t], $t));
                                            $term_link = get_term_link( $term_obj, $t );
                                            $term_link = str_replace('&amp;', '&', $term_link); // fix
                                            if($term_link && !is_wp_error($term_link)){
                                                wp_redirect($term_link);
                                                exit;
                                            }
                                        }
                                    }
                                }
                            }

                        }

                        if(empty($this->this_lang)){
                            $this->this_lang = $this->get_default_language();
                        }
                }
                // allow forcing the current language when it can't be decoded from the URL
                $this->this_lang = apply_filters('icl_set_current_language', $this->this_lang);
            }
            
            //reorder active language to put 'this_lang' in front
            foreach($this->active_languages as $k=>$al){
                if($al['code']==$this->this_lang){
                    unset($this->active_languages[$k]);
                    $this->active_languages = array_merge(array($k=>$al), $this->active_languages);
                }
            }


            //if($this->settings['language_negotiation_type']==3){
               // fix pagenum links for when using the language as a parameter
            //   add_filter('get_pagenum_link', array($this,'get_pagenum_link_filter'));
            //}

            // filter some queries
            add_filter('query', array($this, 'filter_queries'));

            if( $this->settings['language_negotiation_type']==1  && $this->get_current_language()!=$this->get_default_language()){
                add_filter('option_rewrite_rules', array($this, 'rewrite_rules_filter'));
            }
                     
            $this->set_language_cookie();
            
            if(is_admin() && 
                (!isset($_GET['page']) || !defined('WPML_ST_FOLDER') || $_GET['page'] != WPML_ST_FOLDER . '/menu/string-translation.php') &&
                (!isset($_GET['page']) || !defined('WPML_TM_FOLDER') || $_GET['page'] != WPML_TM_FOLDER . '/menu/translations-queue.php')
            ){
                if(!$this->is_rtl() && version_compare($GLOBALS['wp_version'], '3.3', '>')){
                    add_action('admin_notices', 'wpml_set_admin_language_switcher_place', 100);
                    function wpml_set_admin_language_switcher_place(){
                        echo '<br clear="all" />';
                    }
                }
                add_action('in_admin_header', array($this, 'admin_language_switcher'));
            }
            
            if(!is_admin() && defined('DISQUS_VERSION')) include ICL_PLUGIN_PATH . '/modules/disqus.php';
            
        }

        if($this->is_rtl()){
            $GLOBALS['text_direction'] = 'rtl';
        }
        
        // Automatic redirect
        if(!is_admin() && !empty($this->settings['automatic_redirect'])){
            add_action('template_redirect', array($this, 'automatic_redirect'));
        }

        if(is_admin() && empty($this->settings['dont_show_help_admin_notice'])){
            if(count($this->get_active_languages()) < 2){
                add_action('admin_notices', array($this, 'help_admin_notice'));
            }
        }

        $short_v = implode('.', array_slice(explode('.', ICL_SITEPRESS_VERSION), 0, 3));
        if(is_admin() && (!isset($this->settings['hide_upgrade_notice']) || $this->settings['hide_upgrade_notice'] != $short_v)){
            add_action('admin_notices', array($this, 'upgrade_notice'));
        }

        if(is_admin() && current_user_can('manage_options')){            
            if($this->icl_account_configured()) {
                add_action('admin_notices', array($this, 'icl_reminders'));
            }
        }

        require ICL_PLUGIN_PATH . '/inc/template-constants.php';
        if(defined('WPML_LOAD_API_SUPPORT')){
            require ICL_PLUGIN_PATH . '/inc/wpml-api.php';

        }

        add_action('wp_footer', array($this, 'display_wpml_footer'),20);

        if(defined('XMLRPC_REQUEST') && XMLRPC_REQUEST){
            add_action('xmlrpc_call', array($this, 'xmlrpc_call_actions'));
            add_filter('xmlrpc_methods',array($this, 'xmlrpc_methods'));
        }

        if(defined('WPML_TM_VERSION') && is_admin()){
            require ICL_PLUGIN_PATH . '/inc/quote.php';
        }
        
    }
    
    function setup(){
        return !empty($this->settings['setup_complete']);
    }
    
    function automatic_redirect(){
        
        $save_cookie = false;
                                                                  
        if(empty($_COOKIE['_icl_visitor_lang'])){
            //No cookie found
            $lang = $this->get_current_language();
            $langs = @explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
            foreach($langs as $lang){
                $lang = preg_replace('#q=(.+)$#', '', $lang);
                $lang = str_replace('-', '_', $lang); // normalize
                if(!in_array($lang, array_keys($this->get_active_languages()))){
                    $lang = substr($lang, 0, strpos($lang, '_'));
                }
                if(in_array($lang, array_keys($this->get_active_languages()))){
                    //'Got lang from browser: %s', $lang
                    $save_cookie = true;
                    break;
                }
            }

        }else{

            //'Cookie found: %s', $_COOKIE['_icl_visitor_lang']
            if($_COOKIE['_icl_visitor_lang'] != $this->get_current_language()){
                //'User changed language: %s', $this->get_current_language())
                $lang = $this->get_current_language();
                $save_cookie = true;
            }else{
                //'Using cookie lang: %s', $_COOKIE['_icl_visitor_lang']
                $lang = $_COOKIE['_icl_visitor_lang'];
            }

        }

        if($save_cookie){
            $cookie_domain = defined('COOKIE_DOMAIN') ? COOKIE_DOMAIN : $_SERVER['HTTP_HOST'];
            $cookie_path = defined('COOKIEPATH') ? COOKIEPATH : '/';
            $s = setcookie('_icl_visitor_lang', $lang, time()+3600 * intval($this->settings['remember_language']), $cookie_path, $cookie_domain);
            //'Saving cookie: %s', $lang
        }

        if($lang != $this->get_current_language()){
            //'Doing redirect from %s to %s', $this->get_current_language(), $lang
            if($this->settings['automatic_redirect'] == 1){
                $args['skip_missing'] = 1;
            }else{
                $args['skip_missing'] = 0;
            }
            $languages = $this->get_ls_languages($args);
            if(isset($languages[$lang])){ 
                header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
                header("Expires: Sat, 16 Aug 1980 05:00:00 GMT"); // Date in the past                
                
                if(false !== strpos($_SERVER['HTTP_USER_AGENT'], 'Safari')){
                    $http_code = 307;
                }else{
                    $http_code = 300;
                }
                
                wp_redirect($languages[$lang]['url'], $http_code);
                exit;
            }
        }
        //'No redirect needed.'
    }

    function ajax_setup(){        
        require ICL_PLUGIN_PATH . '/ajax.php';
    }

    function configure_custom_column(){
        global $pagenow, $wp_post_types;

        $pagenow_ = '';

        $is_ajax = false;
        if($pagenow == 'admin-ajax.php'){
            if(
                isset($_POST['action']) && $_POST['action']=='inline-save' ||
                isset($_GET['action'])  && $_GET['action'] == 'fetch-list'
            ){
                $is_ajax = true;
            }
        }

        if(($pagenow == 'edit.php' || $pagenow_ == 'edit-pages.php' || $is_ajax)){
            $post_type = isset($_REQUEST['post_type']) ? $_REQUEST['post_type'] : 'post';
            switch($post_type){
                case 'post': case 'page':
                    add_filter('manage_'.$post_type.'s_columns',array($this,'add_posts_management_column'));
                    if(isset($_GET['post_type']) && $_GET['post_type']=='page'){
                        add_action('manage_'.$post_type.'s_custom_column',array($this,'add_content_for_posts_management_column'));
                    }
                    add_action('manage_posts_custom_column',array($this,'add_content_for_posts_management_column'));
                    break;
                default:
                    if(in_array($post_type, array_keys($this->get_translatable_documents()))){
                        add_filter('manage_'.$post_type.'_posts_columns',array($this,'add_posts_management_column'));
                        if($wp_post_types[$post_type]->hierarchical){
                            add_action('manage_pages_custom_column',array($this,'add_content_for_posts_management_column'));
                            add_action('manage_posts_custom_column',array($this,'add_content_for_posts_management_column')); // add this too - for more types plugin
                        }else{
                            add_action('manage_posts_custom_column',array($this,'add_content_for_posts_management_column'));
                        }
                    }
            }
            add_action('admin_print_scripts', array($this, '__set_posts_management_column_width'));
        }
    }

    function _taxonomy_languages_menu(){
        // tags language selection
        global $pagenow, $wpdb;
        if($pagenow == 'edit-tags.php'){
            // handle case of the tax edit page (after a taxonomy has been added)            
            // needs to redirect back to
            if(isset($_GET['trid']) && isset($_GET['source_lang'])){
                $translations = $this->get_element_translations($_GET['trid'], 'tax_' . $_GET['taxonomy']);
                if(isset($translations[$_GET['lang']])){                                                    
                    wp_redirect(get_edit_term_link($translations[$_GET['lang']]->term_id, $_GET['taxonomy']));
                    exit;
                }else{
                     add_action( 'admin_notices', array($this, '_tax_adding') );
                }                
            }
            
            $taxonomy = isset($_GET['taxonomy']) ? $wpdb->escape($_GET['taxonomy']) : 'post_tag';
            if($this->is_translated_taxonomy($taxonomy)){
                add_action('admin_print_scripts-edit-tags.php', array($this,'js_scripts_tags'));
                if($taxonomy == 'category'){
                    add_action('edit_category_form', array($this, 'edit_term_form'));
                }else{
                    add_action('add_tag_form', array($this, 'edit_term_form'));
                    add_action('edit_tag_form', array($this, 'edit_term_form'));
                }   
                add_action('admin_footer', array($this,'terms_language_filter'));
                add_filter('wp_dropdown_cats', array($this, 'wp_dropdown_cats_select_parent'));
            }
        }
    }
    
    function _tax_adding(){
        $translations = $this->get_element_translations($_GET['trid'], 'tax_' . $_GET['taxonomy']);
        if(!empty($translations) && isset($translations[$_GET['source_lang']]->name)){
            $tax_name = apply_filters('the_category', $translations[$_GET['source_lang']]->name);
            echo '<div id="icl_tax_adding_notice" class="updated fade"><p>'. sprintf(__('Adding translation for: %s.', 'sitepress'), $tax_name). '</p></div>';
        }
    }
    
    function the_posts($posts){
        global $wpdb, $wp_query;
        $db = debug_backtrace();
        $custom_wp_query = isset($db[3]['object']) ? $db[3]['object'] : false;
        //exceptions
        if(
            ($this->get_current_language() == $this->get_default_language())  // original language
            || ($wp_query != $custom_wp_query)   // called by a custom query
            || (!$custom_wp_query->is_posts_page && !$custom_wp_query->is_home) // not the blog posts page
            || $wp_query->is_singular //is singular
            || !empty($custom_wp_query->query_vars['category__not_in'])
            //|| !empty($custom_wp_query->query_vars['category__in'])
            //|| !empty($custom_wp_query->query_vars['category__and'])
            || !empty($custom_wp_query->query_vars['tag__not_in'])
            || !empty($custom_wp_query->query_vars['post__in'])
            || !empty($custom_wp_query->query_vars['post__not_in'])
            || !empty($custom_wp_query->query_vars['post_parent'])
        ){

            //$wp_query->query_vars = $this->wp_query->query_vars;
            return $posts;
        }
        // get the posts in the default language instead
        $this_lang = $this->this_lang;
        $this->this_lang = $this->get_default_language();

        remove_filter('the_posts', array($this, 'the_posts'));

        $custom_wp_query->query_vars['suppress_filters'] = 0;

        if(isset($custom_wp_query->query_vars['pagename']) && !empty($custom_wp_query->query_vars['pagename'])){
            if (isset($custom_wp_query->queried_object_id) && !empty($custom_wp_query->queried_object_id)) {
                $page_id = $custom_wp_query->queried_object_id;
            } else {
                // urlencode added for languages that have urlencoded post_name field value
                $custom_wp_query->query_vars['pagename'] = urlencode($custom_wp_query->query_vars['pagename']);
                $page_id = $wpdb->get_var("SELECT ID FROM {$wpdb->posts} WHERE post_name='{$custom_wp_query->query_vars['pagename']}' AND post_type='page'");
            }
            if($page_id){
                $tr_page_id = icl_object_id($page_id, 'page', false, $this->get_default_language());
                if($tr_page_id){
                    $custom_wp_query->query_vars['pagename'] = $wpdb->get_var("SELECT post_name FROM {$wpdb->posts} WHERE ID={$tr_page_id}");
                }
            }
        }



        // look for posts without translations
        if($posts){
            foreach($posts as $p){
                $pids[] = $p->ID;
            }
            $trids = $wpdb->get_col("
                SELECT trid
                FROM {$wpdb->prefix}icl_translations
                WHERE element_type='post_post' AND element_id IN (".join(',', $pids).") AND language_code = '".$this_lang."'");

            if(!empty($trids)){
                $posts_not_translated = $wpdb->get_col("
                    SELECT element_id, COUNT(language_code) AS c
                    FROM {$wpdb->prefix}icl_translations
                    WHERE trid IN (".join(',', $trids).") GROUP BY trid HAVING c = 1
                ");
                if(!empty($posts_not_translated)){
                        $GLOBALS['__icl_the_posts_posts_not_translated'] = $posts_not_translated;
                        add_filter('posts_where', array($this, '_posts_untranslated_extra_posts_where'), 99);
                }
            }


        }

        //fix page for posts
        unset($custom_wp_query->query_vars['page_id']); unset($custom_wp_query->query_vars['p']);

        $my_query = new WP_Query($custom_wp_query->query_vars);
        
        add_filter('the_posts', array($this, 'the_posts'));
        $this->this_lang = $this_lang;

        // create a map of the translated posts
        foreach($posts as $post){
            $trans_posts[$post->ID] = $post;
        }

        // loop original posts
        foreach($my_query->posts as $k=>$post){ // loop posts in the default language
            $trid = $this->get_element_trid($post->ID);
            $translations = $this->get_element_translations($trid); // get translations

            if(isset($translations[$this->get_current_language()])){ // if there is a translation in the current language
                if(isset($trans_posts[$translations[$this->get_current_language()]->element_id])){  //check the map of translated posts
                    $my_query->posts[$k] = $trans_posts[$translations[$this->get_current_language()]->element_id];
                }else{  // check if the translated post exists in the database still
                    $_post = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d AND post_status='publish' LIMIT 1", $translations[$this->get_current_language()]->element_id));
                    if(!empty($_post)){
                        $_post = sanitize_post($_post);
                        $my_query->posts[$k] = $_post;

                    }else{
                        $my_query->posts[$k]->original_language = true;
                    }
                }
            }else{
                $my_query->posts[$k]->original_language = true;
            }

        }

        if($custom_wp_query == $wp_query){
            $wp_query->max_num_pages = $my_query->max_num_pages;
        }

        $posts = $my_query->posts;

        unset($GLOBALS['__icl_the_posts_posts_not_translated']);
        remove_filter('posts_where', array($this, '_posts_untranslated_extra_posts_where'), 99);

        return $posts;
    }

    function _posts_untranslated_extra_posts_where($where){
        global $wpdb;
        $where .= ' OR ' . $wpdb->posts . '.ID IN (' . join(',', $GLOBALS['__icl_the_posts_posts_not_translated']) . ')';
        return $where;
    }

    function initialize_cache(){
        require_once ICL_PLUGIN_PATH . '/inc/cache.php';
        $this->icl_translations_cache = new icl_cache();
        $this->icl_locale_cache = new icl_cache('locale', true);
        $this->icl_flag_cache = new icl_cache('flags', true);
        $this->icl_language_name_cache = new icl_cache('language_name', true);
        $this->icl_term_taxonomy_cache = new icl_cache();
    }

    function set_admin_language(){
        global $wpdb, $current_user;

        if(is_null($current_user) && function_exists('wp_get_current_user')){
            $u = wp_get_current_user();
            if(isset($u->ID) && $u->ID > 0){
                $current_user = $u;
            }else{
                return $this->get_default_language();    
            }
        }

        $active_languages = array_keys($wpdb->get_col("SELECT code FROM {$wpdb->prefix}icl_languages WHERE active=1"));   //don't use method get_active_language()

        if(!empty($current_user->data->ID)){
            $this->admin_language = $this->get_user_admin_language($current_user->data->ID);
        }

        if($this->admin_language != '' && !in_array($this->admin_language, $active_languages)){
            delete_user_meta($current_user->data->ID,'icl_admin_language');
        }
        if(empty($this->settings['admin_default_language']) || !in_array($this->settings['admin_default_language'], $active_languages)){
            $this->settings['admin_default_language'] = '_default_';
            $this->save_settings();
        }

        if(!$this->admin_language){
            $this->admin_language = $this->settings['admin_default_language'];
        }
        if($this->admin_language == '_default_' && $this->get_default_language()){
            $this->admin_language = $this->get_default_language();
        }
        
    }

    function get_admin_language(){
        return $this->admin_language;
    }

    function get_user_admin_language($user_id) {
        static $lang = array();
        if (!isset($lang[$user_id])) {
            $lang[$user_id] = get_user_meta($user_id,'icl_admin_language',true);
            if(empty($lang[$user_id])){
                if(isset($this->settings['admin_default_language'])){
                    $lang[$user_id] = $this->settings['admin_default_language'];    
                }
                if(empty($lang[$user_id]) || '_default_' == $lang[$user_id]){
                    $lang[$user_id] = $this->get_admin_language();
                }
            }            
        }
        return $lang[$user_id];
    }

    function administration_menu(){

        if (1 < count($this->get_active_languages())) {
            $main_page = apply_filters('icl_menu_main_page', basename(ICL_PLUGIN_PATH).'/menu/languages.php');
            add_menu_page(__('WPML','sitepress'), __('WPML','sitepress'), 'manage_options',
                $main_page, null, ICL_PLUGIN_URL . '/res/img/icon16.png');

            do_action('icl_wpml_top_menu_added');

            add_submenu_page($main_page,
                __('Languages','sitepress'), __('Languages','sitepress'),
                'manage_options', basename(ICL_PLUGIN_PATH).'/menu/languages.php');
            add_submenu_page($main_page,
                __('Theme and plugins localization','sitepress'), __('Theme and plugins localization','sitepress'),
                'manage_options', basename(ICL_PLUGIN_PATH).'/menu/theme-localization.php');
            if(!defined('WPML_TM_VERSION')){
                add_submenu_page($main_page,
                    __('Translation options','sitepress'), __('Translation options','sitepress'),
                    'manage_options', basename(ICL_PLUGIN_PATH).'/menu/translation-options.php');
            }

            /*
            add_submenu_page($main_page,
                __('Comments translation','sitepress'), __('Comments translation','sitepress'),
                'manage_options', basename(ICL_PLUGIN_PATH).'/menu/comments-translation.php');
            */
        } else {
            $main_page = basename(ICL_PLUGIN_PATH).'/menu/languages.php';
            add_menu_page(__('WPML','sitepress'), __('WPML','sitepress'), 'manage_options',
                $main_page,null, ICL_PLUGIN_URL . '/res/img/icon16.png');
            add_submenu_page($main_page,
                __('Languages','sitepress'), __('Languages','sitepress'),
                'manage_options', basename(ICL_PLUGIN_PATH).'/menu/languages.php');
        }

        if(isset($_GET['page']) && $_GET['page'] == basename(ICL_PLUGIN_PATH).'/menu/troubleshooting.php'){
            add_submenu_page($main_page,
                 __('Troubleshooting','sitepress'), __('Troubleshooting','sitepress'),
                'manage_options', basename(ICL_PLUGIN_PATH).'/menu/troubleshooting.php');
        }

        //$alert = '&nbsp;<img width="12" height="12" style="margin-bottom:-2px;" src="'.ICL_PLUGIN_URL.'/res/img/alert.png" />';
         add_submenu_page($main_page,
            __('Support','sitepress'), __('Support','sitepress'), 'manage_options', ICL_PLUGIN_FOLDER . '/menu/support.php');

    }
    
    function save_settings($settings=null){
        if(!is_null($settings)){
            foreach($settings as $k=>$v){
                if(is_array($v)){
                    foreach($v as $k2=>$v2){
                        $this->settings[$k][$k2] = $v2;
                    }
                }else{
                    $this->settings[$k] = $v;
                }
            }
        }
        if(!empty($this->settings)){
            update_option('icl_sitepress_settings', $this->settings);
        }
        do_action('icl_save_settings', $settings);
    }

    function get_settings(){
        return $this->settings;
    }

    function get_option($option_name){
        return isset($this->settings[$option_name]) ? $this->settings[$option_name] : null;
    }
    
    function verify_settings(){

        $default_settings = array(
            'interview_translators' => 1,
            'existing_content_language_verified' => 0,
            'language_negotiation_type' => 3,
            'theme_localization_type' => 1,
            'icl_lso_header' => 0,
            'icl_lso_link_empty' => 0,
            'icl_lso_flags' => 0,
            'icl_lso_native_lang' => 1,
            'icl_lso_display_lang' => 1,
            'sync_page_ordering' => 1,
            'sync_page_parent' => 1,
            'sync_page_template' => 1,
            'sync_ping_status' => 1,
            'sync_comment_status' => 1,
            'sync_sticky_flag' => 1,
            'sync_private_flag' => 1,
            'sync_post_format' => 1,
            'sync_delete' => 0,
            'sync_post_taxonomies' => 1,
            'sync_post_date' => 0,
            'sync_taxonomy_parents' => 0,            
            'translation_pickup_method' => 0,
            'notify_complete' => 1,
            'translated_document_status' => 1,
            'remote_management' => 0,
            'auto_adjust_ids' => 1,
            'alert_delay' => 0,
            'promote_wpml' => 0,
            'troubleshooting_options' => array('http_communication' => 1),
            'automat…