ultimatemember/includes/core/class-tracking.php

<?php
namespace um\core;

// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) exit;

if ( ! class_exists( 'Tracking' ) ) {
    class Tracking {

        private $data;

        public function __construct() {

            $this->schedule_send();

            add_action( 'admin_notices', array( $this, 'admin_notices' ), 10 );

        }

        /***
         ***	@setup info array
         ***/
        private function setup_data() {
            $data = array();

            // Retrieve current theme info
            if ( get_bloginfo( 'version' ) < '3.4' ) {
                $theme_data = get_theme_data( get_stylesheet_directory() . '/style.css' );
                $theme      = $theme_data['Name'];
                $theme_ver  = $theme_data['Version'];
            } else {
                $theme_data = wp_get_theme();
                $theme      = $theme_data->Name;
                $theme_ver  = $theme_data->Version;
            }

            $data['url'] = home_url();
            $data['theme'] = $theme;
            $data['theme_version'] = $theme_ver;
            $data['wp_version'] = get_bloginfo( 'version' );
            $data['version'] = ultimatemember_version;

            // Retrieve current plugin information
            if( ! function_exists( 'get_plugins' ) ) {
                include ABSPATH . '/wp-admin/includes/plugin.php';
            }

            $plugins        = array_keys( get_plugins() );
            $active_plugins = get_option( 'active_plugins', array() );

            foreach ( $plugins as $key => $plugin ) {
                if ( in_array( $plugin, $active_plugins ) ) {
                    // Remove active plugins from list so we can show active and inactive separately
                    unset( $plugins[ $key ] );
                }
            }

            $data['active_plugins']   = $active_plugins;
            $data['inactive_plugins'] = $plugins;
            $data['language'] = get_bloginfo('language');
            $data['multisite'] = ( is_multisite() ) ? 1 : 0;

            UM()->setup()->install_basics();

            $data['email'] = get_option( 'admin_email' );
            $data['unique_sitekey'] = get_option( '__ultimatemember_sitekey' );

            $this->data = $data;

        }

        /***
         ***	@check if tracking is allowed
         ***/
        private function tracking_allowed() {
            if ( !um_get_option('allow_tracking') )
                return 0;
            return 1;
        }

        /***
         ***	@get last send time
         ***/
        private function get_last_send() {
            return get_option( 'um_tracking_last_send' );
        }

        /***
         ***	@send a report
         ***/
        public function send_checkin( $override = false ) {

            if( ! $this->tracking_allowed() && ! $override )
                return;

            // Send a maximum of once per period
            $last_send = $this->get_last_send();
            if( $last_send && $last_send > strtotime( '-1 day' ) )
                return;

            $this->setup_data();

            if ( !get_option('__ultimatemember_coupon_sent') ) {
                $this->data['send_discount'] = 1;
            } else {
                $this->data['send_discount'] = 0;
            }

            $request = wp_remote_post( 'https://ultimatemember.com/?um_action=checkin', array(
                'method'      => 'POST',
                'timeout'     => 20,
                'redirection' => 5,
                'httpversion' => '1.0',
                'blocking'    => true,
                'body'        => $this->data,
                'user-agent'  => 'UM/' . ultimatemember_version . '; ' . get_bloginfo( 'url' ),
            ) );

            update_option( 'um_tracking_last_send', time() );
            update_option( '__ultimatemember_coupon_sent', 1 );
        }

        /***
         ***	@run a scheduled report
         ***/
        private function schedule_send() {
            add_action( 'um_daily_scheduled_events', array( $this, 'send_checkin' ) );
        }

        /***
         ***	@show admin notices
         ***/
        public function admin_notices() {

            if( ! current_user_can( 'manage_options' ) )
                return;

            $hide_notice = get_option('um_tracking_notice');

            if ( $hide_notice )
                return;

            $optin_url  =  esc_url( add_query_arg( 'um_adm_action', 'opt_into_tracking' ) );
            $optout_url =  esc_url( add_query_arg( 'um_adm_action', 'opt_out_of_tracking' ) );

            echo '<div class="updated um-admin-notice"><p>';

            echo __( 'Allow Ultimate Member to track plugin usage? Opt-in to tracking and our newsletter and we will immediately e-mail you a 20% discount which you can use to purchase our core extensions bundle. No sensitive data is tracked.', 'ultimate-member' );

            echo '</p>';

            echo '<p><a href="' . esc_url( $optin_url ) . '" class="button button-primary">' . __( 'Allow tracking', 'ultimate-member' ) . '</a>';
            echo '&nbsp;<a href="' . esc_url( $optout_url ) . '" class="button-secondary">' . __( 'Do not allow tracking', 'ultimate-member' ) . '</a></p></div>';

        }

    }
}