1 files changed, 790 insertions, 767 deletions
diff --git a/plugins/wordpress-mobile-pack/frontend/class-application.php b/plugins/wordpress-mobile-pack/frontend/class-application.php
index cfa8b08a..6708929d 100755
--- a/plugins/wordpress-mobile-pack/frontend/class-application.php
+++ b/plugins/wordpress-mobile-pack/frontend/class-application.php
@@ -1,767 +1,790 @@
-<?php
-
-if (!class_exists('WMobilePack_Premium')) {
-    require_once(WMP_PLUGIN_PATH . 'inc/class-wmp-premium.php');
-}
-
-if (!class_exists('WMobilePack_Application')) {
-
-    /**
-     *
-     * WMobilePack_Application
-     *
-     * Main class for managing frontend apps
-     *
-     */
-    class WMobilePack_Application {
-
-
-        /**
-         * Class constructor
-         */
-        public function __construct()
-        {
-            // Load application only if the PRO plugin is not active
-            if (!WMobilePack::is_active_plugin('WordPress Mobile Pack PRO'))
-                $this->check_load();
-        }
-
-        /**
-         *
-         * Create a theme management object and return it
-         *
-         * @return object
-         *
-         */
-        protected function get_premium_manager()
-        {
-            return new WMobilePack_Premium();
-        }
-
-        /**
-         *
-         * Create a cookie management object and return it
-         *
-         * @return object
-         *
-         */
-        protected function get_cookie_manager()
-        {
-            return new WMobilePack_Cookie();
-        }
-
-        /**
-         *
-         * Method that checks if we can load the mobile web application theme.
-         *
-         * The theme is loaded if ALL of the following conditions are met:
-         *
-         * - the user comes from a supported mobile device and browser
-         * - the user has not deactivated the view of the mobile theme by switching to desktop mode
-         * - the display mode of the app is set to 'normal' or is set to 'preview' and an admin is logged in
-         *
-         */
-        public function check_load()
-        {
-
-            // Set app as visible by default
-            $visible_app = true;
-
-            // Check if we have a Premium account
-            $premium_manager = $this->get_premium_manager();
-            $arr_config_premium = $premium_manager->get_premium_config(false);
-
-            if ($arr_config_premium !== null) {
-
-                // For premium, check if the web app is set as visible
-                if ((isset($arr_config_premium->status) && $arr_config_premium->status == 'hidden') ||
-                    (isset($arr_config_premium->deactivated) && $arr_config_premium->deactivated == 1)) {
-
-                    $visible_app = false; // setting it to false will skip the detection
-                }
-
-            } else {
-
-                // For free, check if the display mode is set to 'normal' or 'preview' and the admin is logged in
-                if (!$this->check_display_mode()) {
-                    $visible_app = false;
-                }
-            }
-
-            // Assume the app will not be loaded
-            $load_app = false;
-
-            if ($visible_app) {
-
-                // Check if the load app cookie is 1 or the user came from a mobile device
-                $cookie_manager = $this->get_cookie_manager();
-                $load_app_cookie = $cookie_manager->get_cookie('load_app');
-
-                // If the load_app cookie is not set, verify the device
-                if ($load_app_cookie === null) {
-                    $load_app = $this->check_device();
-
-                } elseif ($load_app_cookie == 1) {
-
-                    // The cookie was already set for the device, so we can load the app
-                    $load_app = true;
-                }
-            }
-
-            // If we need to add the rel=alternate links in the header
-            $show_alternate = true;
-
-            // We have a mobile device and the app is visible, so we can load the app
-            if ($load_app) {
-
-                // Check if the user deactivated the app display
-                $desktop_mode = $this->check_desktop_mode();
-
-                // Check if we need to display a Premium smart app banner instead of redirect automatically to the app
-                $automatic_redirects = $this->check_automatic_redirects($arr_config_premium);
-
-                if ($desktop_mode == false) {
-
-                    // Check if the automatic redirects are enabled
-                    if ($automatic_redirects == true) {
-
-                        // We're loading the mobile web app, so we don't need the rel=alternate links
-                        $show_alternate = false;
-                        $this->load_app();
-
-                    } else {
-
-                        add_action('wp_head', array(&$this, 'show_smart_app_banner_premium'));
-                    }
-
-                } else {
-
-                    // The user returned to desktop, so show him a smart app banner
-                    if ($arr_config_premium === null) {
-
-                        // Use banner if we are on the FREE version
-                        add_action('wp_head', array(&$this, 'show_smart_app_banner'));
-
-                    } elseif ($automatic_redirects == false) {
-
-                        // Or we have a premium app with smart app banner
-                        add_action('wp_head', array(&$this, 'show_smart_app_banner_premium'));
-                    }
-
-                    // Add hook in footer to show the switch to mobile link
-                    add_action('wp_footer', array(&$this, 'show_mobile_link'));
-                }
-            }
-
-            // Add hook in header (for rel=alternate)
-            if ($show_alternate){
-                add_action('wp_head', array(&$this, 'show_rel'));
-            }
-        }
-
-        /**
-         *
-         * Check if the app display is enabled
-         *
-         * Returns true if display mode is "normal" (enabled for all mobile users) or
-         * if display mode is "preview" and an admin is logged in.
-         *
-         * @return bool
-         *
-         */
-        protected function check_display_mode()
-        {
-
-            $display_mode = WMobilePack_Options::get_setting('display_mode');
-
-            if ($display_mode == 'normal')
-                return true;
-
-            elseif ($display_mode == 'preview') {
-
-                if (is_user_logged_in() && current_user_can('create_users'))
-                    return true;
-            }
-
-            return false;
-        }
-
-
-        /**
-         *
-         * Call the mobile detection method to verify if we have a supported device
-         *
-         * @return bool
-         *
-         */
-        protected function check_device(){
-
-            if ( ! class_exists( 'WMobilePack_Detect' ) ) {
-                require_once(WMP_PLUGIN_PATH.'frontend/class-detect.php');
-            }
-
-            $WMobileDetect = new WMobilePack_Detect();
-            return $WMobileDetect->detect_device();
-        }
-
-
-        /**
-         * Detect device and return it
-         *
-         * @return string (phone|tablet)
-         */
-        protected static function get_device(){
-
-            // Check if it is tablet
-            if (!class_exists( 'WMobilePack_Detect' ) ) {
-                require_once(WMP_PLUGIN_PATH.'frontend/class-detect.php');
-            }
-
-            $detect_manager = new WMobilePack_Detect();
-            $is_tablet = $detect_manager->is_tablet();
-
-            // Set device
-            return $is_tablet == 0 ? 'phone' : 'tablet';
-        }
-
-
-        /**
-         *
-         * Check if the user selected to view the desktop mode or we can display the app.
-         *
-         * The GET/COOKIE "theme_mode" can have two values: 'desktop' or 'mobile'.
-         *
-         * - Desktop mode can be activated from the app by selecting to return to desktop view.
-         * - Mobile mode can be reactivated from the footer of the website.
-         *
-         * @return bool
-         *
-         */
-        protected function check_desktop_mode()
-        {
-
-            $desktop_mode = false;
-
-            $cookie_manager = $this->get_cookie_manager();
-            $param_name = WMobilePack_Cookie::$prefix.'theme_mode';
-
-            if (isset($_GET[$param_name]) && is_string($_GET[$param_name])){
-
-                $theme_mode = $_GET[$param_name];
-
-                if ($theme_mode == "desktop" || $theme_mode == "mobile"){
-                    $cookie_manager->set_cookie('theme_mode', $theme_mode, 3600*30*24);
-                }
-
-                if ($theme_mode == "desktop")
-                    $desktop_mode = true;
-
-            } else {
-
-                $theme_mode_cookie = $cookie_manager->get_cookie('theme_mode');
-
-                if ($theme_mode_cookie){
-                    if ($theme_mode_cookie == "desktop")
-                        $desktop_mode = true;
-                }
-            }
-
-            return $desktop_mode;
-        }
-
-
-        /**
-         * Check if the Premium app has a subdomain and smart app banner that will disable automatic redirects
-         *
-         * @param $arr_config_premium
-         * @return bool
-         */
-        protected function check_automatic_redirects($arr_config_premium){
-
-            if ($arr_config_premium !== null) {
-
-                if (isset($arr_config_premium->kit_type) && $arr_config_premium->kit_type == 'wpmp') {
-
-                    // Check if we have a valid subdomain linked to the Premium theme
-                    if (isset($arr_config_premium->domain_name) && filter_var('http://' . $arr_config_premium->domain_name, FILTER_VALIDATE_URL)) {
-
-                        // Check if the app has an active smart app banner
-                        if (isset($arr_config_premium->smart_app_banner) && filter_var('http://' . $arr_config_premium->smart_app_banner, FILTER_VALIDATE_URL)) {
-                            return false;
-                        }
-                    }
-                }
-            }
-
-            return true;
-        }
-
-
-        /**
-         *
-         * Method that loads the mobile web application theme.
-         *
-         * The theme url and theme name from the WP installation are overwritten by the settings below.
-         * Set higher than default priority for filters to ensure these are executed after the ones from the free version.
-         */
-        public function load_app()
-        {
-            add_filter("stylesheet", array(&$this, "app_theme"), 11);
-            add_filter("template", array(&$this, "app_theme"), 11);
-
-            add_filter('theme_root', array( &$this, 'app_theme_root' ), 11);
-            add_filter('theme_root_uri', array( &$this, 'app_theme_root' ), 11);
-        }
-
-
-        /**
-         * Return the theme name
-         */
-        public function app_theme()
-        {
-            if (WMobilePack_Options::get_setting('premium_active') == 1 && WMobilePack_Options::get_setting('premium_api_key') != '')
-                return 'premium';
-            else
-                return 'app'.WMobilePack_Options::get_setting('theme');
-        }
-
-
-        /**
-         *
-         * Method used to display a rel=alternate link in the header of the desktop theme
-         *
-         * This method is called from check_load()
-         *
-         * @todo (Future releases) Don't set tag if a page's parent is deactivated
-         */
-        public function show_rel()
-        {
-
-            $use_external_rels = false;
-
-            if (WMobilePack_Options::get_setting('premium_active') == 1 && WMobilePack_Options::get_setting('premium_api_key') != ''){
-
-                $premium_manager = $this->get_premium_manager();
-                $arr_config_premium = $premium_manager->get_premium_config();
-
-                if ($arr_config_premium !== null){
-                    if (!isset($arr_config_premium['kit_type']) || $arr_config_premium['kit_type'] != 'wpmp'){
-                        $use_external_rels = true;
-                    }
-                }
-            }
-
-            if ($use_external_rels)
-                include(WMP_PLUGIN_PATH . 'frontend/sections/show-rel-external.php');
-            else
-                include(WMP_PLUGIN_PATH.'frontend/sections/show-rel.php');
-        }
-
-
-        /**
-         *
-         * Method used to include a smart app banner in the header of the desktop theme,
-         * when the mobile theme is disabled.
-         *
-         * This method is called from check_load()
-         *
-         * @todo (Future releases) Don't set mobile url if a page's parent is deactivated
-         *
-         */
-        public function show_smart_app_banner()
-        {
-            include(WMP_PLUGIN_PATH.'frontend/sections/smart-app-banner.php');
-        }
-
-
-        /**
-         *
-         * Method used to include a smart app banner in the header of the desktop theme,
-         * when automatic redirects are disabled.
-         *
-         * This method is called from check_load()
-         *
-         * @todo (Future releases) Don't set mobile url if a page's parent is deactivated
-         *
-         */
-        public function show_smart_app_banner_premium()
-        {
-            include(WMP_PLUGIN_PATH.'frontend/sections/smart-app-banner-premium.php');
-        }
-
-
-        /**
-         * Return path to the mobile themes folder
-         */
-        public function app_theme_root()
-        {
-            return WMP_PLUGIN_PATH . 'frontend/themes';
-        }
-
-
-        /**
-         *
-         * Method used to display a box on the footer of the theme
-         *
-         * This method is called from check_load()
-         * The box contains a link that sets the cookie and loads the app
-         *
-         */
-        public function show_mobile_link()
-        {
-            include(WMP_PLUGIN_PATH.'frontend/sections/show-mobile-link.php');
-        }
-
-
-        /**
-         * Returns an array with all the application's frontend settings
-         *
-         * @return array
-         */
-        public static function load_app_settings()
-        {
-
-            // load basic settings
-            $frontend_options = array(
-                'theme',
-                'color_scheme',
-                'theme_timestamp',
-                'font_headlines',
-                'font_subtitles',
-                'font_paragraphs',
-                'google_analytics_id',
-                'display_website_link',
-                'posts_per_page'
-            );
-
-            $settings = array();
-
-            foreach ($frontend_options as $option_name){
-                $settings[$option_name] = WMobilePack_Options::get_setting($option_name);
-
-                // backwards compatibility for font settings with versions lower than 2.2
-                if (in_array($option_name, array('font_headlines', 'font_subtitles', 'font_paragraphs'))){
-                    if (!is_numeric($settings[$option_name])){
-                        $settings[$option_name] = 1;
-                    }
-                }
-            }
-
-            // check if custom theme exists and the file size is greater than zero
-            if ($settings['theme_timestamp'] != ''){
-
-                $custom_theme_path = WMP_FILES_UPLOADS_DIR.'theme-'.$settings['theme_timestamp'].'.css';
-
-                if (!file_exists($custom_theme_path) || filesize($custom_theme_path) == 0){
-                    $settings['theme_timestamp'] = '';
-                }
-            }
-
-            // theme file doesn't exist, an preset css file will be used instead
-            if ($settings['theme_timestamp'] == '' && $settings['font_headlines'] > 3){
-                $settings['font_headlines'] = 1;
-            }
-
-            // load images
-            foreach (array('icon', 'logo', 'cover') as $file_type){
-
-                $file_path = WMobilePack_Options::get_setting($file_type);
-
-                if ($file_path == '' || !file_exists(WMP_FILES_UPLOADS_DIR.$file_path))
-                    $settings[$file_type] = '';
-                else
-                    $settings[$file_type] = WMP_FILES_UPLOADS_URL.$file_path;
-            }
-
-            // generate comments token
-            if (!class_exists('WMobilePack_Tokens')) {
-                require_once(WMP_PLUGIN_PATH . 'inc/class-wmp-tokens.php');
-            }
-
-            $settings['comments_token'] = WMobilePack_Tokens::get_token();
-
-            return $settings;
-        }
-
-
-        /**
-         * Returns an array with the application's Premium theme settings
-         *
-         * @param $arr_config_premium
-         * @param $device
-         * @return array
-         */
-        protected static function load_app_settings_theme_premium($arr_config_premium, $device){
-
-            $settings = array();
-
-            $theme_options = array(
-                'theme',
-                'color_scheme',
-                'font_headlines',
-                'font_subtitles',
-                'font_paragraphs',
-                'theme_timestamp',
-                'custom_fonts'
-            );
-
-            foreach ($theme_options as $exact_setting) {
-
-                if (isset($arr_config_premium[$device][$exact_setting])) {
-                    $settings[$exact_setting] = $arr_config_premium[$device][$exact_setting];
-                } else {
-
-                    if ($exact_setting == 'color_scheme' || $exact_setting == 'font_headlines')
-                        $settings[$exact_setting] = 1;
-                    else
-                        $settings[$exact_setting] = '';
-                }
-            }
-
-            return $settings;
-        }
-
-
-        /**
-         * Returns an array with the application's paths and images settings
-         *
-         * @param $arr_config_premium
-         * @param $device
-         * @param $is_secure
-         * @return array
-         */
-        protected static function load_app_settings_paths_images_premium($arr_config_premium, $device, $is_secure){
-
-            $settings = array(
-                'cdn_kits' => ($is_secure ? $arr_config_premium['cdn_kits_https'] : $arr_config_premium['cdn_kits']),
-                'cdn_apps' => ($is_secure ? $arr_config_premium['cdn_apps_https'] : $arr_config_premium['cdn_apps']),
-                'icon' => '',
-                'logo' => '',
-                'cover' => '',
-                'user_cover' => 0,
-            );
-
-            // Check if we have to load a custom theme
-            if ($arr_config_premium[$device]['theme'] != 0) {
-
-                $settings['kits_path'] = $settings['cdn_kits'];
-
-                if (isset($arr_config_premium['kit_type']) && $arr_config_premium['kit_type'] == 'wpmp'){
-                    $settings['kits_path'] .= "/apps";
-                }
-
-                $settings['kits_path'] .= "/app".$arr_config_premium[$device]['theme'].'/'.$arr_config_premium['kit_version'].'/';
-
-            } else {
-                $settings['kits_path'] = $settings['cdn_apps']."/".$arr_config_premium['shorten_url'].'/';
-            }
-
-            // Set icon
-            if (isset($arr_config_premium['icon_path']) && $arr_config_premium['icon_path'] != '')
-                $settings['icon'] = $settings['cdn_apps']."/".$arr_config_premium['shorten_url'].'/'.$arr_config_premium['icon_path'];
-
-            // Set logo
-            if (isset($arr_config_premium['logo_path']) && $arr_config_premium['logo_path'] != '')
-                $settings['logo'] = $settings['cdn_apps']."/".$arr_config_premium['shorten_url'].'/'.$arr_config_premium['logo_path'];
-
-            // Set cover settings
-            if (isset($arr_config_premium[$device]['cover']) && $arr_config_premium[$device]['cover'] != '') {
-                $settings['cover'] = $settings['cdn_apps']."/".$arr_config_premium['shorten_url'].'/'.$arr_config_premium[$device]['cover'];
-                $settings['user_cover'] = 1;
-            } else {
-                $settings['cover'] = $settings['cdn_kits'].'/others/covers/'.$device.'/pattern-'.rand(1,8).'.jpg';
-            }
-
-            // Process icons & startup screens timestamps
-            if (!isset($arr_config_premium['kit_type']) || $arr_config_premium['kit_type'] != 'wpmp') {
-
-                $settings['icon_timestamp'] = '';
-                if (isset($arr_config_premium['icon_path']) && $arr_config_premium['icon_path'] != '') {
-                    $str = $arr_config_premium['icon_path'];
-                    $settings['icon_timestamp'] = '_' . substr($str, strpos($str, '_') + 1, strpos($str, '.') - strpos($str, '_') - 1);
-                }
-
-                $settings['logo_timestamp'] = '';
-                if (isset($arr_config_premium['logo_path']) && $arr_config_premium['logo_path'] != '') {
-                    $str = $arr_config_premium['logo_path'];
-                    $settings['logo_timestamp'] = '_' . substr($str, strpos($str, '_') + 1, strpos($str, '.') - strpos($str, '_') - 1);
-                }
-            }
-
-            return $settings;
-        }
-
-
-        /**
-         * Returns an array with the application's Google DFP and analytics settings
-         *
-         * @param $arr_config_premium
-         * @return array
-         */
-        protected static function load_app_settings_google_premium($arr_config_premium){
-
-            $settings = array();
-
-            $google_options = array(
-                'has_phone_ads',
-
-                'phone_ad_interval',
-                'phone_network_code',
-                'phone_unit_name',
-                'phone_ad_sizes',
-
-                'has_tablet_ads',
-
-                'tablet_ad_interval',
-                'tablet_network_code',
-                'tablet_unit_name',
-                'tablet_ad_sizes',
-
-                'google_internal_id',
-                'google_analytics_id',
-                'google_webmasters_code',
-            );
-
-            foreach ($google_options as $exact_setting){
-
-                if (isset($arr_config_premium[$exact_setting])){
-                    $settings[$exact_setting] = $arr_config_premium[$exact_setting];
-                }
-            }
-
-            return $settings;
-        }
-
-
-
-        /**
-         *
-         * Returns an array with all the application's frontend settings (Premium themes)
-         *
-         */
-        public static function load_app_settings_premium(){
-
-            $premium_manager = new WMobilePack_Premium();
-            $arr_config_premium = $premium_manager->get_premium_config();
-
-            // Get the device type
-            $device = self::get_device();
-
-            // Check if we have a secure https connection
-            $is_secure = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') || $_SERVER['SERVER_PORT'] == 443;
-
-            // load basic settings
-            $settings = array(
-                'device' => $device,
-                'kit_type' => 'classic',
-                'shorten_url' => $arr_config_premium['shorten_url'],
-                'title' => $arr_config_premium['title'],
-                'locale' => 'en_EN',
-                'cover_text' => '',
-                'posts_per_page' => 'auto',
-                'enable_facebook' => 1,
-                'enable_twitter' => 1,
-                'enable_google' => 1
-            );
-
-            $theme_settings = self::load_app_settings_theme_premium($arr_config_premium, $device);
-            $settings = array_merge($settings, $theme_settings);
-
-            $images_paths_settings = self::load_app_settings_paths_images_premium($arr_config_premium, $device, $is_secure);
-            $settings = array_merge($settings, $images_paths_settings);
-
-            $google_settings = self::load_app_settings_google_premium($arr_config_premium);
-            $settings = array_merge($settings, $google_settings);
-
-            // Check domain name
-            if (isset($arr_config_premium['domain_name']) && filter_var('http://'.$arr_config_premium['domain_name'], FILTER_VALIDATE_URL))
-                $settings['domain_name'] = $arr_config_premium['domain_name'];
-
-            // Set locale
-            if (isset($arr_config_premium['locale']) && $arr_config_premium['locale'] != '')
-                $settings['locale'] = $arr_config_premium['locale'];
-
-            // Set website url
-            if (isset($arr_config_premium['website_url']) && $arr_config_premium['website_url'] != '')
-                $settings['website_url'] = $arr_config_premium['website_url'];
-
-            // Set social media
-            foreach (array('facebook', 'twitter', 'google') as $social_network){
-                if (isset($arr_config_premium['enable_'.$social_network]) && !$arr_config_premium['enable_'.$social_network])
-                    $settings['enable_'.$social_network] = 0;
-            }
-
-            if (isset($arr_config_premium['kit_type']) && $arr_config_premium['kit_type'] == 'wpmp') {
-
-                $settings['kit_type'] = 'wpmp';
-                $settings['title'] = urldecode($settings['title']);
-
-                // Set posts per page
-                if (isset($arr_config_premium[$device]['posts_per_page']) && in_array($arr_config_premium[$device]['posts_per_page'], array('single', 'double'))) {
-
-                    if ($arr_config_premium[$device]['posts_per_page'] == 'single') {
-                        $settings['posts_per_page'] = 1;
-                    } else {
-                        $settings['posts_per_page'] = 2;
-                    }
-                }
-
-                // Set cover text
-                if (isset($arr_config_premium[$device]['cover_text']) && $arr_config_premium[$device]['cover_text'] != ''){
-
-                    // load HTML purifier / formatter
-                    if (!class_exists('WMobilePack_Formatter')) {
-                        require_once(WMP_PLUGIN_PATH . 'inc/class-wmp-formatter.php');
-                    }
-
-                    $purifier = WMobilePack_Formatter::init_purifier();
-                    $settings['cover_text'] = $purifier->purify(stripslashes(urldecode($arr_config_premium[$device]['cover_text'])));
-                }
-
-                // Generate comments token
-                if (!class_exists('WMobilePack_Tokens')) {
-                    require_once(WMP_PLUGIN_PATH . 'inc/class-wmp-tokens.php');
-                }
-
-                $settings['comments_token'] = WMobilePack_Tokens::get_token();
-
-            } else {
-
-                $settings['webapp'] = $arr_config_premium['webapp'];
-                $settings['api_content'] = $is_secure ? $arr_config_premium['api_content_https'] : $arr_config_premium['api_content'];
-                $settings['api_social'] = $is_secure ? $arr_config_premium['api_social_https'] : $arr_config_premium['api_social'];
-
-                if (isset($arr_config_premium['api_content_external'])){
-                    $settings['api_content_external'] = $arr_config_premium['api_content_external'];
-                    $settings['enable_facebook'] = 0;
-                    $settings['enable_twitter'] = 0;
-                }
-            }
-
-            return $settings;
-
-        }
-
-
-        /**
-         * Check if a language file exists in the locales folder
-         *
-         * @param $locale
-         * @return bool|string
-         */
-        public static function check_language_file($locale)
-        {
-            $language_file_path = WMP_PLUGIN_PATH.'frontend/locales/'.strip_tags($locale).'.json';
-
-            if (!file_exists($language_file_path)) {
-                $language_file_path = WMP_PLUGIN_PATH."frontend/locales/default.json";
-            }
-
-            if (file_exists($language_file_path)){
-                return $language_file_path;
-            }
-
-            return false;
-        }
-    }
-}
-\ No newline at end of file
+<?php
+
+if (!class_exists('WMobilePack_Premium')) {
+    require_once(WMP_PLUGIN_PATH . 'inc/class-wmp-premium.php');
+}
+
+if (!class_exists('WMobilePack_Application')) {
+
+    /**
+     *
+     * WMobilePack_Application
+     *
+     * Main class for managing frontend apps
+     *
+     */
+    class WMobilePack_Application {
+
+
+        /**
+         * Class constructor
+         */
+        public function __construct()
+        {
+            // Load application only if the PRO plugin is not active
+            if (!WMobilePack::is_active_plugin('WordPress Mobile Pack PRO'))
+                $this->check_load();
+
+            // Add filter for changing style path for Google AMP
+            if (WMobilePack::is_active_plugin('AMP') && $this->app_theme() !== 'premium') {
+                add_filter( 'amp_post_template_file', array($this, 'dbawp_amp_set_custom_template'), 10, 3);
+            }
+        }
+
+        /**
+         *
+         * Create a theme management object and return it
+         *
+         * @return object
+         *
+         */
+        protected function get_premium_manager()
+        {
+            return new WMobilePack_Premium();
+        }
+
+        /**
+         *
+         * Create a cookie management object and return it
+         *
+         * @return object
+         *
+         */
+        protected function get_cookie_manager()
+        {
+            return new WMobilePack_Cookie();
+        }
+
+        /**
+         *
+         * Method that checks if we can load the mobile web application theme.
+         *
+         * The theme is loaded if ALL of the following conditions are met:
+         *
+         * - the user comes from a supported mobile device and browser
+         * - the user has not deactivated the view of the mobile theme by switching to desktop mode
+         * - the display mode of the app is set to 'normal' or is set to 'preview' and an admin is logged in
+         *
+         */
+        public function check_load()
+        {
+
+            // Set app as visible by default
+            $visible_app = true;
+
+            // Check if we have a Premium account
+            $premium_manager = $this->get_premium_manager();
+            $arr_config_premium = $premium_manager->get_premium_config(false);
+
+            if ($arr_config_premium !== null) {
+
+                // For premium, check if the web app is set as visible
+                if ((isset($arr_config_premium->status) && $arr_config_premium->status == 'hidden') ||
+                    (isset($arr_config_premium->deactivated) && $arr_config_premium->deactivated == 1)) {
+
+                    $visible_app = false; // setting it to false will skip the detection
+                }
+
+            } else {
+
+                // For free, check if the display mode is set to 'normal' or 'preview' and the admin is logged in
+                if (!$this->check_display_mode()) {
+                    $visible_app = false;
+                }
+            }
+
+            // Assume the app will not be loaded
+            $load_app = false;
+
+            if ($visible_app) {
+
+                // Check if the load app cookie is 1 or the user came from a mobile device
+                $cookie_manager = $this->get_cookie_manager();
+                $load_app_cookie = $cookie_manager->get_cookie('load_app');
+
+                // If the load_app cookie is not set, verify the device
+                if ($load_app_cookie === null) {
+                    $load_app = $this->check_device();
+
+                } elseif ($load_app_cookie == 1) {
+
+                    // The cookie was already set for the device, so we can load the app
+                    $load_app = true;
+                }
+            }
+
+            // If we need to add the rel=alternate links in the header
+            $show_alternate = true;
+
+            // We have a mobile device and the app is visible, so we can load the app
+            if ($load_app) {
+
+                // Check if the user deactivated the app display
+                $desktop_mode = $this->check_desktop_mode();
+
+                // Check if we need to display a Premium smart app banner instead of redirect automatically to the app
+                $automatic_redirects = $this->check_automatic_redirects($arr_config_premium);
+
+                if ($desktop_mode == false) {
+
+                    // Check if the automatic redirects are enabled
+                    if ($automatic_redirects == true) {
+
+                        // We're loading the mobile web app, so we don't need the rel=alternate links
+                        $show_alternate = false;
+                        $this->load_app();
+
+                    } else {
+
+                        add_action('wp_head', array(&$this, 'show_smart_app_banner_premium'));
+                    }
+
+                } else {
+
+                    // The user returned to desktop, so show him a smart app banner
+                    if ($arr_config_premium === null) {
+
+                        // Use banner if we are on the FREE version
+                        add_action('wp_head', array(&$this, 'show_smart_app_banner'));
+
+                    } elseif ($automatic_redirects == false) {
+
+                        // Or we have a premium app with smart app banner
+                        add_action('wp_head', array(&$this, 'show_smart_app_banner_premium'));
+                    }
+
+                    // Add hook in footer to show the switch to mobile link
+                    add_action('wp_footer', array(&$this, 'show_mobile_link'));
+                }
+            }
+
+            // Add hook in header (for rel=alternate)
+            if ($show_alternate){
+                add_action('wp_head', array(&$this, 'show_rel'));
+            }
+        }
+
+        /**
+         *
+         * Check if the app display is enabled
+         *
+         * Returns true if display mode is "normal" (enabled for all mobile users) or
+         * if display mode is "preview" and an admin is logged in.
+         *
+         * @return bool
+         *
+         */
+        protected function check_display_mode()
+        {
+
+            $display_mode = WMobilePack_Options::get_setting('display_mode');
+
+            if ($display_mode == 'normal')
+                return true;
+
+            elseif ($display_mode == 'preview') {
+
+                if (is_user_logged_in() && current_user_can('create_users'))
+                    return true;
+            }
+
+            return false;
+        }
+
+
+        /**
+         *
+         * Call the mobile detection method to verify if we have a supported device
+         *
+         * @return bool
+         *
+         */
+        protected function check_device(){
+
+            if ( ! class_exists( 'WMobilePack_Detect' ) ) {
+                require_once(WMP_PLUGIN_PATH.'frontend/class-detect.php');
+            }
+
+            $WMobileDetect = new WMobilePack_Detect();
+            return $WMobileDetect->detect_device();
+        }
+
+
+        /**
+         * Detect device and return it
+         *
+         * @return string (phone|tablet)
+         */
+        protected static function get_device(){
+
+            // Check if it is tablet
+            if (!class_exists( 'WMobilePack_Detect' ) ) {
+                require_once(WMP_PLUGIN_PATH.'frontend/class-detect.php');
+            }
+
+            $detect_manager = new WMobilePack_Detect();
+            $is_tablet = $detect_manager->is_tablet();
+
+            // Set device
+            return $is_tablet == 0 ? 'phone' : 'tablet';
+        }
+
+
+        /**
+         *
+         * Check if the user selected to view the desktop mode or we can display the app.
+         *
+         * The GET/COOKIE "theme_mode" can have two values: 'desktop' or 'mobile'.
+         *
+         * - Desktop mode can be activated from the app by selecting to return to desktop view.
+         * - Mobile mode can be reactivated from the footer of the website.
+         *
+         * @return bool
+         *
+         */
+        protected function check_desktop_mode()
+        {
+
+            $desktop_mode = false;
+
+            $cookie_manager = $this->get_cookie_manager();
+            $param_name = WMobilePack_Cookie::$prefix.'theme_mode';
+
+            if (isset($_GET[$param_name]) && is_string($_GET[$param_name])){
+
+                $theme_mode = $_GET[$param_name];
+
+                if ($theme_mode == "desktop" || $theme_mode == "mobile"){
+                    $cookie_manager->set_cookie('theme_mode', $theme_mode, 3600*30*24);
+                }
+
+                if ($theme_mode == "desktop")
+                    $desktop_mode = true;
+
+            } else {
+
+                $theme_mode_cookie = $cookie_manager->get_cookie('theme_mode');
+
+                if ($theme_mode_cookie){
+                    if ($theme_mode_cookie == "desktop")
+                        $desktop_mode = true;
+                }
+            }
+
+            return $desktop_mode;
+        }
+
+
+        /**
+         * Check if the Premium app has a subdomain and smart app banner that will disable automatic redirects
+         *
+         * @param $arr_config_premium
+         * @return bool
+         */
+        protected function check_automatic_redirects($arr_config_premium){
+
+            if ($arr_config_premium !== null) {
+
+                if (isset($arr_config_premium->kit_type) && $arr_config_premium->kit_type == 'wpmp') {
+
+                    // Check if we have a valid subdomain linked to the Premium theme
+                    if (isset($arr_config_premium->domain_name) && filter_var('http://' . $arr_config_premium->domain_name, FILTER_VALIDATE_URL)) {
+
+                        // Check if the app has an active smart app banner
+                        if (isset($arr_config_premium->smart_app_banner) && filter_var('http://' . $arr_config_premium->smart_app_banner, FILTER_VALIDATE_URL)) {
+                            return false;
+                        }
+                    }
+                }
+            }
+
+            return true;
+        }
+
+
+        /**
+         * Change the path to Google AMP's CSS file, to use the colors from WP Mobile Pack.
+         * Add filter for Google AMP custom style.
+         */
+        public function dbawp_amp_set_custom_template($file, $type, $post)
+        {
+            if ('style' === $type) {
+                $file = WMP_PLUGIN_PATH . 'frontend/themes/app1/amp/style.php';
+            }
+            return $file;
+        }
+
+
+        /**
+         *
+         * Method that loads the mobile web application theme.
+         *
+         * The theme url and theme name from the WP installation are overwritten by the settings below.
+         * Set higher than default priority for filters to ensure these are executed after the ones from the free version.
+         */
+        public function load_app()
+        {
+            add_filter("stylesheet", array(&$this, "app_theme"), 11);
+            add_filter("template", array(&$this, "app_theme"), 11);
+
+            add_filter('theme_root', array( &$this, 'app_theme_root' ), 11);
+            add_filter('theme_root_uri', array( &$this, 'app_theme_root' ), 11);
+        }
+
+
+        /**
+         * Return the theme name
+         */
+        public function app_theme()
+        {
+            $premium_data = get_transient(WMobilePack_Options::$transient_prefix."premium_config_path");
+
+            if (WMobilePack_Options::get_setting('premium_active') == 1 &&
+                WMobilePack_Options::get_setting('premium_api_key') != '' &&
+                $premium_data !== false && $premium_data !== '')
+                return 'premium';
+            else
+                return 'app'.WMobilePack_Options::get_setting('theme');
+        }
+
+
+        /**
+         *
+         * Method used to display a rel=alternate link in the header of the desktop theme
+         *
+         * This method is called from check_load()
+         *
+         * @todo (Future releases) Don't set tag if a page's parent is deactivated
+         */
+        public function show_rel()
+        {
+
+            $use_external_rels = false;
+
+            if (WMobilePack_Options::get_setting('premium_active') == 1 && WMobilePack_Options::get_setting('premium_api_key') != ''){
+
+                $premium_manager = $this->get_premium_manager();
+                $arr_config_premium = $premium_manager->get_premium_config();
+
+                if ($arr_config_premium !== null){
+                    if (!isset($arr_config_premium['kit_type']) || $arr_config_premium['kit_type'] != 'wpmp'){
+                        $use_external_rels = true;
+                    }
+                }
+            }
+
+            if ($use_external_rels)
+                include(WMP_PLUGIN_PATH . 'frontend/sections/show-rel-external.php');
+            else
+                include(WMP_PLUGIN_PATH.'frontend/sections/show-rel.php');
+        }
+
+
+        /**
+         *
+         * Method used to include a smart app banner in the header of the desktop theme,
+         * when the mobile theme is disabled.
+         *
+         * This method is called from check_load()
+         *
+         * @todo (Future releases) Don't set mobile url if a page's parent is deactivated
+         *
+         */
+        public function show_smart_app_banner()
+        {
+            include(WMP_PLUGIN_PATH.'frontend/sections/smart-app-banner.php');
+        }
+
+
+        /**
+         *
+         * Method used to include a smart app banner in the header of the desktop theme,
+         * when automatic redirects are disabled.
+         *
+         * This method is called from check_load()
+         *
+         * @todo (Future releases) Don't set mobile url if a page's parent is deactivated
+         *
+         */
+        public function show_smart_app_banner_premium()
+        {
+            include(WMP_PLUGIN_PATH.'frontend/sections/smart-app-banner-premium.php');
+        }
+
+
+        /**
+         * Return path to the mobile themes folder
+         */
+        public function app_theme_root()
+        {
+            return WMP_PLUGIN_PATH . 'frontend/themes';
+        }
+
+
+        /**
+         *
+         * Method used to display a box on the footer of the theme
+         *
+         * This method is called from check_load()
+         * The box contains a link that sets the cookie and loads the app
+         *
+         */
+        public function show_mobile_link()
+        {
+            include(WMP_PLUGIN_PATH.'frontend/sections/show-mobile-link.php');
+        }
+
+
+        /**
+         * Returns an array with all the application's frontend settings
+         *
+         * @return array
+         */
+        public static function load_app_settings()
+        {
+
+            // load basic settings
+            $frontend_options = array(
+                'theme',
+                'color_scheme',
+                'theme_timestamp',
+                'font_headlines',
+                'font_subtitles',
+                'font_paragraphs',
+                'google_analytics_id',
+                'display_website_link',
+                'posts_per_page'
+            );
+
+            $settings = array();
+
+            foreach ($frontend_options as $option_name){
+                $settings[$option_name] = WMobilePack_Options::get_setting($option_name);
+
+                // backwards compatibility for font settings with versions lower than 2.2
+                if (in_array($option_name, array('font_headlines', 'font_subtitles', 'font_paragraphs'))){
+                    if (!is_numeric($settings[$option_name])){
+                        $settings[$option_name] = 1;
+                    }
+                }
+            }
+
+            // check if custom theme exists and the file size is greater than zero
+            if ($settings['theme_timestamp'] != ''){
+
+                $custom_theme_path = WMP_FILES_UPLOADS_DIR.'theme-'.$settings['theme_timestamp'].'.css';
+
+                if (!file_exists($custom_theme_path) || filesize($custom_theme_path) == 0){
+                    $settings['theme_timestamp'] = '';
+                }
+            }
+
+            // theme file doesn't exist, an preset css file will be used instead
+            if ($settings['theme_timestamp'] == '' && $settings['font_headlines'] > 3){
+                $settings['font_headlines'] = 1;
+            }
+
+            // load images
+            foreach (array('icon', 'logo', 'cover') as $file_type){
+
+                $file_path = WMobilePack_Options::get_setting($file_type);
+
+                if ($file_path == '' || !file_exists(WMP_FILES_UPLOADS_DIR.$file_path))
+                    $settings[$file_type] = '';
+                else
+                    $settings[$file_type] = WMP_FILES_UPLOADS_URL.$file_path;
+            }
+
+            // generate comments token
+            if (!class_exists('WMobilePack_Tokens')) {
+                require_once(WMP_PLUGIN_PATH . 'inc/class-wmp-tokens.php');
+            }
+
+            $settings['comments_token'] = WMobilePack_Tokens::get_token();
+
+            return $settings;
+        }
+
+
+        /**
+         * Returns an array with the application's Premium theme settings
+         *
+         * @param $arr_config_premium
+         * @param $device
+         * @return array
+         */
+        protected static function load_app_settings_theme_premium($arr_config_premium, $device){
+
+            $settings = array();
+
+            $theme_options = array(
+                'theme',
+                'color_scheme',
+                'font_headlines',
+                'font_subtitles',
+                'font_paragraphs',
+                'theme_timestamp',
+                'custom_fonts'
+            );
+
+            foreach ($theme_options as $exact_setting) {
+
+                if (isset($arr_config_premium[$device][$exact_setting])) {
+                    $settings[$exact_setting] = $arr_config_premium[$device][$exact_setting];
+                } else {
+
+                    if ($exact_setting == 'color_scheme' || $exact_setting == 'font_headlines')
+                        $settings[$exact_setting] = 1;
+                    else
+                        $settings[$exact_setting] = '';
+                }
+            }
+
+            return $settings;
+        }
+
+
+        /**
+         * Returns an array with the application's paths and images settings
+         *
+         * @param $arr_config_premium
+         * @param $device
+         * @param $is_secure
+         * @return array
+         */
+        protected static function load_app_settings_paths_images_premium($arr_config_premium, $device, $is_secure){
+
+            $settings = array(
+                'cdn_kits' => ($is_secure ? $arr_config_premium['cdn_kits_https'] : $arr_config_premium['cdn_kits']),
+                'cdn_apps' => ($is_secure ? $arr_config_premium['cdn_apps_https'] : $arr_config_premium['cdn_apps']),
+                'icon' => '',
+                'logo' => '',
+                'cover' => '',
+                'user_cover' => 0,
+            );
+
+            // Check if we have to load a custom theme
+            if ($arr_config_premium[$device]['theme'] != 0) {
+
+                $settings['kits_path'] = $settings['cdn_kits'];
+
+                if (isset($arr_config_premium['kit_type']) && $arr_config_premium['kit_type'] == 'wpmp'){
+                    $settings['kits_path'] .= "/apps";
+                }
+
+                $settings['kits_path'] .= "/app".$arr_config_premium[$device]['theme'].'/'.$arr_config_premium['kit_version'].'/';
+
+            } else {
+                $settings['kits_path'] = $settings['cdn_apps']."/".$arr_config_premium['shorten_url'].'/';
+            }
+
+            // Set icon
+            if (isset($arr_config_premium['icon_path']) && $arr_config_premium['icon_path'] != '')
+                $settings['icon'] = $settings['cdn_apps']."/".$arr_config_premium['shorten_url'].'/'.$arr_config_premium['icon_path'];
+
+            // Set logo
+            if (isset($arr_config_premium['logo_path']) && $arr_config_premium['logo_path'] != '')
+                $settings['logo'] = $settings['cdn_apps']."/".$arr_config_premium['shorten_url'].'/'.$arr_config_premium['logo_path'];
+
+            // Set cover settings
+            if (isset($arr_config_premium[$device]['cover']) && $arr_config_premium[$device]['cover'] != '') {
+                $settings['cover'] = $settings['cdn_apps']."/".$arr_config_premium['shorten_url'].'/'.$arr_config_premium[$device]['cover'];
+                $settings['user_cover'] = 1;
+            } else {
+                $settings['cover'] = $settings['cdn_kits'].'/others/covers/'.$device.'/pattern-'.rand(1,8).'.jpg';
+            }
+
+            // Process icons & startup screens timestamps
+            if (!isset($arr_config_premium['kit_type']) || $arr_config_premium['kit_type'] != 'wpmp') {
+
+                $settings['icon_timestamp'] = '';
+                if (isset($arr_config_premium['icon_path']) && $arr_config_premium['icon_path'] != '') {
+                    $str = $arr_config_premium['icon_path'];
+                    $settings['icon_timestamp'] = '_' . substr($str, strpos($str, '_') + 1, strpos($str, '.') - strpos($str, '_') - 1);
+                }
+
+                $settings['logo_timestamp'] = '';
+                if (isset($arr_config_premium['logo_path']) && $arr_config_premium['logo_path'] != '') {
+                    $str = $arr_config_premium['logo_path'];
+                    $settings['logo_timestamp'] = '_' . substr($str, strpos($str, '_') + 1, strpos($str, '.') - strpos($str, '_') - 1);
+                }
+            }
+
+            return $settings;
+        }
+
+
+        /**
+         * Returns an array with the application's Google DFP and analytics settings
+         *
+         * @param $arr_config_premium
+         * @return array
+         */
+        protected static function load_app_settings_google_premium($arr_config_premium){
+
+            $settings = array();
+
+            $google_options = array(
+                'has_phone_ads',
+
+                'phone_ad_interval',
+                'phone_network_code',
+                'phone_unit_name',
+                'phone_ad_sizes',
+
+                'has_tablet_ads',
+
+                'tablet_ad_interval',
+                'tablet_network_code',
+                'tablet_unit_name',
+                'tablet_ad_sizes',
+
+                'google_internal_id',
+                'google_analytics_id',
+                'google_tag_manager_id',
+                'google_webmasters_code',
+            );
+
+            foreach ($google_options as $exact_setting){
+
+                if (isset($arr_config_premium[$exact_setting])){
+                    $settings[$exact_setting] = $arr_config_premium[$exact_setting];
+                }
+            }
+
+            return $settings;
+        }
+
+
+
+        /**
+         *
+         * Returns an array with all the application's frontend settings (Premium themes)
+         *
+         */
+        public static function load_app_settings_premium(){
+
+            $premium_manager = new WMobilePack_Premium();
+            $arr_config_premium = $premium_manager->get_premium_config();
+
+            // Get the device type
+            $device = self::get_device();
+
+            // Check if we have a secure https connection
+            $is_secure = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') || $_SERVER['SERVER_PORT'] == 443;
+
+            // load basic settings
+            $settings = array(
+                'device' => $device,
+                'kit_type' => 'classic',
+                'shorten_url' => $arr_config_premium['shorten_url'],
+                'title' => $arr_config_premium['title'],
+                'locale' => 'en_EN',
+                'cover_text' => '',
+                'posts_per_page' => 'auto',
+                'enable_facebook' => 1,
+                'enable_twitter' => 1,
+                'enable_google' => 1
+            );
+
+            $theme_settings = self::load_app_settings_theme_premium($arr_config_premium, $device);
+            $settings = array_merge($settings, $theme_settings);
+
+            $images_paths_settings = self::load_app_settings_paths_images_premium($arr_config_premium, $device, $is_secure);
+            $settings = array_merge($settings, $images_paths_settings);
+
+            $google_settings = self::load_app_settings_google_premium($arr_config_premium);
+            $settings = array_merge($settings, $google_settings);
+
+            // Check domain name
+            if (isset($arr_config_premium['domain_name']) && filter_var('http://'.$arr_config_premium['domain_name'], FILTER_VALIDATE_URL))
+                $settings['domain_name'] = $arr_config_premium['domain_name'];
+
+            // Set locale
+            if (isset($arr_config_premium['locale']) && $arr_config_premium['locale'] != '')
+                $settings['locale'] = $arr_config_premium['locale'];
+
+            // Set website url
+            if (isset($arr_config_premium['website_url']) && $arr_config_premium['website_url'] != '')
+                $settings['website_url'] = $arr_config_premium['website_url'];
+
+            // Set social media
+            foreach (array('facebook', 'twitter', 'google') as $social_network){
+                if (isset($arr_config_premium['enable_'.$social_network]) && !$arr_config_premium['enable_'.$social_network])
+                    $settings['enable_'.$social_network] = 0;
+            }
+
+            if (isset($arr_config_premium['kit_type']) && $arr_config_premium['kit_type'] == 'wpmp') {
+
+                $settings['kit_type'] = 'wpmp';
+                $settings['title'] = urldecode($settings['title']);
+
+                // Set posts per page
+                if (isset($arr_config_premium[$device]['posts_per_page']) && in_array($arr_config_premium[$device]['posts_per_page'], array('single', 'double'))) {
+
+                    if ($arr_config_premium[$device]['posts_per_page'] == 'single') {
+                        $settings['posts_per_page'] = 1;
+                    } else {
+                        $settings['posts_per_page'] = 2;
+                    }
+                }
+
+                // Set cover text
+                if (isset($arr_config_premium[$device]['cover_text']) && $arr_config_premium[$device]['cover_text'] != ''){
+
+                    // load HTML purifier / formatter
+                    if (!class_exists('WMobilePack_Formatter')) {
+                        require_once(WMP_PLUGIN_PATH . 'inc/class-wmp-formatter.php');
+                    }
+
+                    $purifier = WMobilePack_Formatter::init_purifier();
+                    $settings['cover_text'] = $purifier->purify(stripslashes(urldecode($arr_config_premium[$device]['cover_text'])));
+                }
+
+                // Generate comments token
+                if (!class_exists('WMobilePack_Tokens')) {
+                    require_once(WMP_PLUGIN_PATH . 'inc/class-wmp-tokens.php');
+                }
+
+                $settings['comments_token'] = WMobilePack_Tokens::get_token();
+
+            } else {
+
+                $settings['webapp'] = $arr_config_premium['webapp'];
+                $settings['api_content'] = $is_secure ? $arr_config_premium['api_content_https'] : $arr_config_premium['api_content'];
+                $settings['api_social'] = $is_secure ? $arr_config_premium['api_social_https'] : $arr_config_premium['api_social'];
+
+                if (isset($arr_config_premium['api_content_external'])){
+                    $settings['api_content_external'] = $arr_config_premium['api_content_external'];
+                    $settings['enable_facebook'] = 0;
+                    $settings['enable_twitter'] = 0;
+                }
+            }
+
+            return $settings;
+
+        }
+
+
+        /**
+         * Check if a language file exists in the locales folder
+         *
+         * @param $locale
+         * @return bool|string
+         */
+        public static function check_language_file($locale)
+        {
+            $language_file_path = WMP_PLUGIN_PATH.'frontend/locales/'.strip_tags($locale).'.json';
+
+            if (!file_exists($language_file_path)) {
+                $language_file_path = WMP_PLUGIN_PATH."frontend/locales/default.json";
+            }
+
+            if (file_exists($language_file_path)){
+                return $language_file_path;
+            }
+
+            return false;
+        }
+    }
+}