gocodebox/lifterlms

<?php
/**
 * Handle sending data to LifterLMS when tracking is enabled
 *
 * @package LifterLMS/Classes
 *
 * @since 3.0.0
 * @version 7.4.0
 */

defined( 'ABSPATH' ) || exit;

/**
 * LifterLMS telemetry tracking data.
 *
 * @since 3.0.0
 */
class LLMS_Tracker {

    /**
     * URL endpoint where we'll receive the data
     */
    const API_URL = 'https://lifterlms.com/llms-api/tracking';

    /**
     * Initialize.
     *
     * @since 3.0.0
     *
     * @return void
     */
    public static function init() {
        add_action( 'llms_send_tracking_data', array( __CLASS__, 'send_data' ) );
    }

    /**
     * Retrieve a timestamp of the last time the tracks sent data home
     *
     * @since    3.0.0
     *
     * @return   int        a timestamp
     */
    private static function get_last_send_time() {
        return apply_filters( 'llms_tracker_get_last_send_time', get_option( 'llms_tracker_last_send_time', 0 ) );
    }

    /**
     * Send data home
     *
     * @since 3.0.0
     * @since 7.4.0 Fix return type.
     *
     * @param bool $force Force send regardless or the last send time.
     * @return array|WP_Error|void
     */
    public static function send_data( $force = false ) {

        // Don't trigger during AJAX Requests.
        if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
            return;
        }

        // Allow forcing of the send despite the interval.
        if ( ! $force && ! apply_filters( 'llms_tracker_force_send', false ) ) {

            // Only send data once a week.
            $last_send = self::get_last_send_time();
            if ( $last_send && $last_send > apply_filters( 'llms_tracker_send_interval', strtotime( '-1 week' ) ) ) {
                return;
            }
        }

        // Record a last send time.
        update_option( 'llms_tracker_last_send_time', time() );

        $r = wp_remote_post(
            self::API_URL,
            array(
                'body'        => array(
                    'data' => json_encode( LLMS_Data::get_data( 'tracker' ) ),
                ),
                'cookies'     => array(),
                'headers'     => array(
                    'user-agent' => 'LifterLMS_Tracker/' . md5( esc_url( home_url( '/' ) ) ) . ';',
                ),
                'method'      => 'POST',
                'redirection' => 5,
                'timeout'     => 60,
            )
        );

        if ( ! is_wp_error( $r ) ) {

            return json_decode( $r['body'], true );

        } else {

            return $r;

        }

    }

}