jetpack / class.jetpack-affiliate.php

class.jetpack-affiliate.php in Jetpack – WP Security, Backup, Speed, & Growth 8.0, at class.jetpack-affiliate.php

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1	<?php
2
3	if ( ! defined( 'ABSPATH' ) ) {
4	// Exit if accessed directly
5	exit;
6	}
7
8	use Automattic\Jetpack\Status;
9
10	/**
11	* This class introduces routines to get an affiliate code, that might be obtained from:
12	* - an `jetpack_affiliate_code` option in the WP database
13	* - an affiliate code returned by a filter bound to the `jetpack_affiliate_code` filter hook
14	*
15	* @since 6.9.0
16	*/
17	class Jetpack_Affiliate {
18
19	/**
20	* @since 6.9.0
21	* @var Jetpack_Affiliate This class instance.
22	**/
23	private static $instance = null;
24
25	private function __construct() {
26	if ( ( new Status() )->is_development_mode() ) {
27	return;
28	}
29	}
30
31	/**
32	* Initializes the class or returns the singleton
33	*
34	* @since 6.9.0
35	*
36	* @return Jetpack_Affiliate \| false
37	*/
38	public static function init() {
39	if ( is_null( self::$instance ) ) {
40	self::$instance = new Jetpack_Affiliate();
41	}
42	return self::$instance;
43	}
44
45	/**
46	* Returns the affiliate code from database after filtering it.
47	*
48	* @since 6.9.0
49	*
50	* @return string The affiliate code.
51	*/
52	public function get_affiliate_code() {
53	/**
54	* Allow to filter the affiliate code.
55	*
56	* @since 6.9.0
57	*
58	* @param string $aff_code The affiliate code, blank by default.
59	*/
60	return apply_filters( 'jetpack_affiliate_code', get_option( 'jetpack_affiliate_code', '' ) );
61	}
62
63	/**
64	* Returns the passed URL with the affiliate code added as a URL query arg.
65	*
66	* @since 6.9.0
67	*
68	* @param string $url The URL where the code will be added.
69	*
70	* @return string The passed URL with the code added.
71	*/
72	public function add_code_as_query_arg( $url ) {
73	if ( '' !== ( $aff = $this->get_affiliate_code() ) ) {
74	$url = add_query_arg( 'aff', $aff, $url );
75	}
76	return $url;
77	}
78	}
79
80	add_action( 'init', array( 'Jetpack_Affiliate', 'init' ) );
81