convertkit / includes / class-convertkit-ajax.php

class-convertkit-ajax.php in Kit (formerly ConvertKit) – Email Newsletter, Email Marketing, Membership, Subscribers and Landing Pages 2.3.3, at includes/class-convertkit-ajax.php

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1	<?php
2	/**
3	* ConvertKit AJAX class.
4	*
5	* @package ConvertKit
6	* @author ConvertKit
7	*/
8
9	/**
10	* Registers AJAX actions for the Plugin.
11	*
12	* @since 1.9.6
13	*/
14	class ConvertKit_AJAX {
15
16	/**
17	* Constructor.
18	*
19	* @since 1.9.6
20	*/
21	public function __construct() {
22
23	add_action( 'wp_ajax_convertkit_get_blocks', array( $this, 'get_blocks' ) );
24
25	add_action( 'wp_ajax_nopriv_convertkit_store_subscriber_id_in_cookie', array( $this, 'store_subscriber_id_in_cookie' ) );
26	add_action( 'wp_ajax_convertkit_store_subscriber_id_in_cookie', array( $this, 'store_subscriber_id_in_cookie' ) );
27
28	add_action( 'wp_ajax_nopriv_convertkit_store_subscriber_email_as_id_in_cookie', array( $this, 'store_subscriber_email_as_id_in_cookie' ) );
29	add_action( 'wp_ajax_convertkit_store_subscriber_email_as_id_in_cookie', array( $this, 'store_subscriber_email_as_id_in_cookie' ) );
30
31	add_action( 'wp_ajax_nopriv_convertkit_tag_subscriber', array( $this, 'tag_subscriber' ) );
32	add_action( 'wp_ajax_convertkit_tag_subscriber', array( $this, 'tag_subscriber' ) );
33
34	}
35
36	/**
37	* Returns all ConvertKit registered blocks.
38	*
39	* Typically used when a refresh button in a block has been pressed when
40	* convertKitGutenbergDisplayBlockNoticeWithLink() is called, because either
41	* no API keys were specified, or no resources exist in ConvertKit.
42	*
43	* @since 2.2.6
44	*/
45	public function get_blocks() {
46
47	// Check nonce.
48	check_ajax_referer( 'convertkit_get_blocks', 'nonce' );
49
50	// Refresh resources from the API, to reflect any changes.
51	$forms = new ConvertKit_Resource_Forms( 'block_edit' );
52	$forms->refresh();
53
54	$posts = new ConvertKit_Resource_Posts( 'block_edit' );
55	$posts->refresh();
56
57	$products = new ConvertKit_Resource_Products( 'block_edit' );
58	$products->refresh();
59
60	// Return blocks.
61	wp_send_json_success( convertkit_get_blocks() );
62
63	}
64
65	/**
66	* Stores the ConvertKit Subscriber's ID in a cookie.
67	*
68	* Typically performed when the user subscribes via a ConvertKit Form on the web site
69	* that is set to "Send subscriber to thank you page", and the Plugin's JavaScript is not
70	* disabled, permitting convertkit.js to run.
71	*
72	* @since 1.9.6
73	*/
74	public function store_subscriber_id_in_cookie() {
75
76	// Check nonce.
77	check_ajax_referer( 'convertkit', 'convertkit_nonce' );
78
79	// Bail if required request parameters not submitted.
80	if ( ! isset( $_REQUEST['subscriber_id'] ) ) {
81	wp_send_json_error( __( 'ConvertKit: Required parameter `subscriber_id` not included in AJAX request.', 'convertkit' ) );
82	}
83
84	// Bail if no subscriber ID provided.
85	$id = absint( sanitize_text_field( $_REQUEST['subscriber_id'] ) );
86	if ( empty( $id ) ) {
87	wp_send_json_error( __( 'ConvertKit: Required parameter `subscriber_id` empty in AJAX request.', 'convertkit' ) );
88	}
89
90	// Get subscriber ID.
91	$subscriber = new ConvertKit_Subscriber();
92	$subscriber_id = $subscriber->validate_and_store_subscriber_id( $id );
93
94	// Bail if an error occured i.e. API hasn't been configured, subscriber ID does not exist in ConvertKit etc.
95	if ( is_wp_error( $subscriber_id ) ) {
96	wp_send_json_error( $subscriber_id->get_error_message() );
97	}
98
99	// Return the subscriber ID.
100	wp_send_json_success(
101	array(
102	'id' => $subscriber_id,
103	)
104	);
105
106	}
107
108	/**
109	* Stores the ConvertKit Subscriber Email's ID in a cookie.
110	*
111	* Typically performed when the user subscribes via a ConvertKit Form on the web site
112	* and the Plugin's JavaScript is not disabled, permitting convertkit.js to run.
113	*
114	* @since 1.9.6
115	*/
116	public function store_subscriber_email_as_id_in_cookie() {
117
118	// Check nonce.
119	check_ajax_referer( 'convertkit', 'convertkit_nonce' );
120
121	// Bail if required request parameters not submitted.
122	if ( ! isset( $_REQUEST['email'] ) ) {
123	wp_send_json_error( __( 'ConvertKit: Required parameter `email` not included in AJAX request.', 'convertkit' ) );
124	}
125	$email = sanitize_text_field( $_REQUEST['email'] );
126
127	// Bail if the email address is empty.
128	if ( empty( $email ) ) {
129	wp_send_json_error( __( 'ConvertKit: Required parameter `email` is empty.', 'convertkit' ) );
130	}
131
132	// Bail if the email address isn't a valid email address.
133	if ( ! filter_var( $email, FILTER_VALIDATE_EMAIL ) ) {
134	wp_send_json_error( __( 'ConvertKit: Required parameter `email` is not an email address.', 'convertkit' ) );
135	}
136
137	// Get subscriber ID.
138	$subscriber = new ConvertKit_Subscriber();
139	$subscriber_id = $subscriber->validate_and_store_subscriber_email( $email );
140
141	// Bail if an error occured i.e. API hasn't been configured, subscriber ID does not exist in ConvertKit etc.
142	if ( is_wp_error( $subscriber_id ) ) {
143	wp_send_json_error( $subscriber_id->get_error_message() );
144	}
145
146	// Return the subscriber ID.
147	wp_send_json_success(
148	array(
149	'id' => $subscriber_id,
150	)
151	);
152
153	}
154
155	/**
156	* Tags a subscriber when their subscriber ID is present in the cookie or URL,
157	* and the Page's ConvertKit Settings specify a Tag.
158	*
159	* @since 1.9.6
160	*/
161	public function tag_subscriber() {
162
163	// Check nonce.
164	check_ajax_referer( 'convertkit', 'convertkit_nonce' );
165
166	// Bail if required request parameters not submitted.
167	if ( ! isset( $_REQUEST['subscriber_id'] ) ) {
168	wp_send_json_error( __( 'ConvertKit: Required parameter `subscriber_id` not included in AJAX request.', 'convertkit' ) );
169	}
170	if ( ! isset( $_REQUEST['tag'] ) ) {
171	wp_send_json_error( __( 'ConvertKit: Required parameter `tag` not included in AJAX request.', 'convertkit' ) );
172	}
173	$subscriber_id = absint( sanitize_text_field( $_REQUEST['subscriber_id'] ) );
174	$tag_id = absint( sanitize_text_field( $_REQUEST['tag'] ) );
175
176	// Bail if no subscriber ID or tag provided.
177	if ( empty( $subscriber_id ) ) {
178	wp_send_json_error( __( 'ConvertKit: Required parameter `subscriber_id` empty in AJAX request.', 'convertkit' ) );
179	}
180	if ( empty( $tag_id ) ) {
181	wp_send_json_error( __( 'ConvertKit: Required parameter `tag` empty in AJAX request.', 'convertkit' ) );
182	}
183
184	// Bail if the API hasn't been configured.
185	$settings = new ConvertKit_Settings();
186	if ( ! $settings->has_api_key_and_secret() ) {
187	wp_send_json_error( __( 'ConvertKit: API Keys not defined in Plugin Settings.', 'convertkit' ) );
188	}
189
190	// Initialize the API.
191	$api = new ConvertKit_API( $settings->get_api_key(), $settings->get_api_secret(), $settings->debug_enabled() );
192
193	// Get subscriber's email address by subscriber ID.
194	$subscriber = $api->get_subscriber_by_id( $subscriber_id );
195
196	// Bail if the subscriber could not be found.
197	if ( is_wp_error( $subscriber ) ) {
198	wp_send_json_error( $subscriber->get_error_message() );
199	}
200
201	// Extract the subscriber's email.
202	$email = $subscriber['email_address'];
203
204	// Store the subscriber ID as a cookie.
205	$subscriber = new ConvertKit_Subscriber();
206	$subscriber->set( $subscriber_id );
207
208	// Tag the subscriber with the Post's tag.
209	$tag = $api->tag_subscribe( $tag_id, $email );
210
211	// Bail if an error occured tagging the subscriber.
212	if ( is_wp_error( $tag ) ) {
213	wp_send_json_error( $tag );
214	}
215
216	wp_send_json_success( $tag );
217
218	}
219
220	}
221