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<?php
/**
* AJAX Initialization & Helper Functions
*
* @since 1.4
* @package PUM
* @subpackage PUM/includes
* @author Daniel Iser <danieliser@wizardinternetsolutions.com>
* @copyright Copyright (c) 2019, Code Atlantic LLC
* @license http://opensource.org/licenses/gpl-3.0.php GNU Public License
*/
// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Controls the basic analytics methods for Popup Maker
*
*/
class PUM_Ajax {
/**
* Creates and returns a 1x1 tracking gif to the browser.
*/
public static function serve_pixel() {
$gif = PUM_Ajax::get_file( POPMAKE_DIR . 'assets/images/beacon.gif' );
header( 'Content-Type: image/gif' );
header( 'Content-Length: ' . strlen( $gif ) );
exit( $gif );
}
public static function get_file( $path ) {
if ( function_exists( 'realpath' ) ) {
$path = realpath( $path );
}
if ( ! $path || ! @is_file( $path ) ) {
return '';
}
return @file_get_contents( $path );
}
/**
* Returns a 204 no content header.
*/
public static function serve_no_content() {
header( "HTTP/1.0 204 No Content" );
header( 'Content-Type: image/gif' );
header( 'Content-Length: 0' );
exit;
}
/**
* Serves a proper json response.
*
* @param mixed $data
*/
public static function serve_json( $data = 0 ) {
header( 'Content-Type: application/json' );
echo PUM_Utils_Array::safe_json_encode( $data );
exit;
}
}