class.cookie-wall.php

<?php
if (! defined('ABSPATH')) {
    exit;
} // Exit if accessed directly
class CookieWall
{
    private static $cookieName = "wp-tropical-cookie-wall";
    private static $initiated = false;
    private static $useragent = '';
    private static $requestscheme = '';
    private static $httphost = '';
    private static $redirecturl = '';
    private static $scripts = array();
    private static $styles = array();
    
    
    public static function init()
    {
        if (! self::$initiated) {
            self::$initiated = true;
            self::init_hooks();
            self::createVars();
            self::createCookieWall();
        }
    }

    /**
     * Initializes Plugin
     */
    private static function init_hooks()
    {
        add_shortcode('accept_button', array('CookieWall', 'shrt_cookieAccept'));
        add_shortcode('readmore', array('CookieWall', 'shrt_readmore'));
        add_shortcode('page_edit_date', array('CookieWall', 'shrt_pageEdit'));
        load_plugin_textdomain(COOKIE_WALL_TEXT_DOMAIN, false, COOKIE_WALL_PLUGIN_DIR.'/translations/');
    }
    
    public static function createCookieWall()
    {
        if (self::checkCookieWall()) {
            $post = get_post(self::getCookiePageID());
            self::enqueueScripts();
            include('templates/cookiewall.php');
            exit;
        }
    }
    private static function checkCookieWall()
    {
        if (self::get_blocked_agents()) {
            if (!self::checkCookie() && !self::isCookiePage() && !is_admin()) {
                wp_redirect(self::getCookiePageUri()."?u=".base64_encode(self::$requestscheme."://".$_SERVER["HTTP_HOST"].$_SERVER["REQUEST_URI"]));
                exit;
            } elseif (isset($_GET['a'])) {
                if ($_GET['a'] == 'y') {
                    setcookie(self::$cookieName, 1, time()+31556926, '/');
                    wp_redirect(base64_decode($_GET['u']));
                    exit;
                }
            } elseif (self::isCookiePage()) {
                return true;
            }
            return false;
        }
        return  false;
    }
    
    public static function enqueueScripts()
    {
        array_push(self::$styles, array("Cookie-wall-style", COOKIE_WALL_PLUGIN_URI .'assets/css/style.css', array(), 1));
        array_push(self::$scripts, array("jquery", get_site_url().'/wp-includes/js/jquery/jquery.js', array(), 1));
        array_push(self::$scripts, array("cookie-wall-scripts", COOKIE_WALL_PLUGIN_URI.'assets/js/scripts.js', array(), 1));
    }

    private static function checkCookie()
    {
        if (!isset($_COOKIE[SELF::$cookieName])) {
            return false;
        }
        return true;
    }
    
    private static function getCookiePageUri()
    {
        return get_site_url()."/".get_page_uri(self::getCookiePageID())."/";
    }
    
    private static function getCurrentUri()
    {
        return self::$requestscheme."://".self::$httphost.self::$redirecturl;
    }
    
    private static function isCookiePage()
    {
        if (self::getCookiePageUri() === self::getCurrentUri()) {
            return true;
        }
        return false;
    }
    
    private static function getCookiePageID()
    {
        $options = get_option('tropical_cookie_wall_options');
        return $options['content_page'];
    }
    
    private static function getStyles()
    {
        foreach (self::$styles as $style) {
            $html .= "<link id=\"{$style[0]}\" href=\"{$style[1]}\" media=\"all\" rel=\"stylesheet\">".PHP_EOL;
        }
        return $html;
    }
    
    private static function getScripts()
    {
        foreach (self::$scripts as $script) {
            $html .= "<script id=\"{$script[0]}\" src=\"{$script[1]}\" type='text/javascript'></script> ".PHP_EOL;
        }
        return $html;
    }
    
    private static function getPageBgImage()
    {
        $options = get_option('tropical_cookie_wall_options');
        return wp_get_attachment_url($options['background_url']);
    }
    
    private static function getPageBgColor()
    {
        $options = get_option('tropical_cookie_wall_options');
        return $options['background_color'];
    }
    
    private static function getBGBlur()
    {
        $options = get_option('tropical_cookie_wall_options');
        return $options['background_blur'];
    }
    
    private static function getLogoUrl()
    {
        $options = get_option('tropical_cookie_wall_options');
        return wp_get_attachment_url($options['content_logo']);
    }
    
    private static function getTrackingCode()
    {
        $options = get_option('tropical_cookie_wall_options');
        return "<script>
		    (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
		    	(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
		        m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
		    })(window,document,'script','//www.google-analytics.com/analytics.js','ga');

		    ga('create', '{$options['trackingID']}', 'auto');
		    ga('set', 'anonymizeIp', true);
		    ga('set', 'displayFeaturesTask', null);
		    ga('send', 'pageview');
		</script>;";
    }
    
    private static function get_blocked_agents()
    {
        $blocked_agents = array('Internet\ Explorer', 'MSIE', 'Chrome', 'Safari', 'Firefox', 'Windows', 'Opera', 'iphone', 'ipad', 'android', 'blackberry');
        foreach ($blocked_agents as $agent) {
            if (stristr(self::$useragent, $agent) !== false) {
                return true;
            }
        }
        return false;
    }
    
    public static function createVars()
    {
        self::$useragent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : getenv('HTTP_USER_AGENT');
        self::$requestscheme = isset($_SERVER["REQUEST_SCHEME"]) ? $_SERVER['REQUEST_SCHEME'] : getenv('REQUEST_SCHEME');
        self::$httphost = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : getenv('HTTP_HOST');
        self::$redirecturl = isset($_SERVER['REDIRECT_URL']) ? $_SERVER['REDIRECT_URL'] : getenv('REDIRECT_URL');
    }
    
    public function shrt_cookieAccept($atts)
    {
        $url = self::$requestscheme."://".$_SERVER["HTTP_HOST"].$_SERVER["REQUEST_URI"]."&a=y";
        return "<a class=\"btn btn__accept\" href=\"{$url}\" id=\"accept_koe\">".__('Accept', COOKIE_WALL_TEXT_DOMAIN)."</a>";
    }
    
    public function shrt_pageEdit($atts)
    {
        $post = get_post(self::getCookiePageID());
        return date_i18n(get_option('date_format'), strtotime($post->post_modified));
    }
    
    public function shrt_readmore($atts, $content = "")
    {
        $content = do_shortcode($content);
        return "<a href=\"#\" id=\"readmore\">".__('Read more', COOKIE_WALL_TEXT_DOMAIN)."</a>
			<div id=\"readmore_content\">$content</div>
		";
    }
}