convertkit / includes / functions.php

functions.php in Kit (formerly ConvertKit) – Email Newsletter, Email Marketing, Membership, Subscribers and Landing Pages 3.3.3, at includes/functions.php

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1	<?php
2	/**
3	* ConvertKit general plugin functions.
4	*
5	* @package ConvertKit
6	* @author ConvertKit
7	*/
8
9	/**
10	* Runs the activation and update routines when the plugin is activated.
11	*
12	* @since 1.9.7.4
13	*
14	* @param bool $network_wide Is network wide activation.
15	*/
16	function convertkit_plugin_activate( $network_wide ) {
17
18	// Initialise Plugin.
19	$convertkit = WP_ConvertKit();
20	$convertkit->initialize();
21
22	// Check if we are on a multisite install, activating network wide, or a single install.
23	if ( ! is_multisite() \|\| ! $network_wide ) {
24	// Single Site activation.
25	$convertkit->get_class( 'setup' )->activate();
26
27	// Set a transient for 30 seconds to redirect to the setup screen on activation.
28	set_transient( 'convertkit-setup', true, 30 );
29	} else {
30	// Multisite network wide activation.
31	$sites = get_sites(
32	array(
33	'number' => 0,
34	)
35	);
36	foreach ( $sites as $site ) {
37	switch_to_blog( (int) $site->blog_id );
38	$convertkit->get_class( 'setup' )->activate();
39	restore_current_blog();
40	}
41	}
42
43	}
44
45	/**
46	* Runs the activation and update routines when the plugin is activated
47	* on a WordPress multisite setup.
48	*
49	* @since 1.9.7.4
50	*
51	* @param WP_Site\|int $site_or_blog_id WP_Site or Blog ID.
52	*/
53	function convertkit_plugin_activate_new_site( $site_or_blog_id ) {
54
55	// Check if $site_or_blog_id is a WP_Site or a blog ID.
56	if ( is_a( $site_or_blog_id, 'WP_Site' ) ) {
57	$site_or_blog_id = $site_or_blog_id->blog_id;
58	}
59
60	// Initialise Plugin.
61	$convertkit = WP_ConvertKit();
62	$convertkit->initialize();
63
64	// Run installation routine.
65	switch_to_blog( $site_or_blog_id );
66	$convertkit->get_class( 'setup' )->activate();
67	restore_current_blog();
68
69	}
70
71	/**
72	* Runs the deactivation routine when the plugin is deactivated.
73	*
74	* @since 1.9.7.4
75	*
76	* @param bool $network_wide Is network wide deactivation.
77	*/
78	function convertkit_plugin_deactivate( $network_wide ) {
79
80	// Initialise Plugin.
81	$convertkit = WP_ConvertKit();
82	$convertkit->initialize();
83
84	// Check if we are on a multisite install, activating network wide, or a single install.
85	if ( ! is_multisite() \|\| ! $network_wide ) {
86	// Single Site activation.
87	$convertkit->get_class( 'setup' )->deactivate();
88	} else {
89	// Multisite network wide activation.
90	$sites = get_sites(
91	array(
92	'number' => 0,
93	)
94	);
95	foreach ( $sites as $site ) {
96	switch_to_blog( (int) $site->blog_id );
97	$convertkit->get_class( 'setup' )->deactivate();
98	restore_current_blog();
99	}
100	}
101
102	}
103
104	/**
105	* Helper method to get supported Post Types.
106	*
107	* @since 1.9.6
108	*
109	* @return array Post Types
110	*/
111	function convertkit_get_supported_post_types() {
112
113	// Define supported Post Types.
114	$post_types = array(
115	'page',
116	'post',
117	);
118
119	// If public Custom Post Types can be fetched, include them now.
120	if ( function_exists( 'get_post_types' ) ) {
121	// Get public Custom Post Types.
122	$custom_post_types = (array) get_post_types(
123	array(
124	'public' => true,
125
126	// Don't include WordPress' built in Post Types, such as attachment, revisino and nav_menu_item.
127	'_builtin' => false,
128	)
129	);
130
131	$post_types = array_merge(
132	$post_types,
133	array_keys( $custom_post_types )
134	);
135	}
136
137	/**
138	* Defines the Post Types that support ConvertKit Forms.
139	*
140	* @since 1.9.6
141	*
142	* @param array $post_types Post Types
143	*/
144	$post_types = apply_filters( 'convertkit_get_supported_post_types', $post_types );
145
146	return $post_types;
147
148	}
149
150	/**
151	* Helper method to get supported Post Types for Restricted Content (Member's Content)
152	*
153	* @since 2.1.0
154	*
155	* @deprecated 2.4.3 No longer used by internal code and not recommended. Use `convertkit_get_supported_post_types` instead.
156	*
157	* @return array Post Types
158	*/
159	function convertkit_get_supported_restrict_content_post_types() {
160
161	return convertkit_get_supported_post_types();
162
163	}
164
165	/**
166	* Helper method to get registered Shortcodes.
167	*
168	* @since 1.9.6.5
169	*
170	* @return array Shortcodes
171	*/
172	function convertkit_get_shortcodes() {
173
174	$shortcodes = array();
175
176	/**
177	* Registers shortcodes for the ConvertKit Plugin.
178	*
179	* @since 1.9.6.5
180	*
181	* @param array $shortcodes Shortcodes
182	*/
183	$shortcodes = apply_filters( 'convertkit_shortcodes', $shortcodes );
184
185	return $shortcodes;
186
187	}
188
189	/**
190	* Helper method to get registered Blocks.
191	*
192	* @since 1.9.6
193	*
194	* @return array Blocks
195	*/
196	function convertkit_get_blocks() {
197
198	$blocks = array();
199
200	/**
201	* Registers blocks for the ConvertKit Plugin.
202	*
203	* @since 1.9.6
204	*
205	* @param array $blocks Blocks
206	*/
207	$blocks = apply_filters( 'convertkit_blocks', $blocks );
208
209	return $blocks;
210
211	}
212
213	/**
214	* Helper method to get registered Block formatters for Gutenberg.
215	*
216	* @since 2.2.0
217	*
218	* @return array Block formatters
219	*/
220	function convertkit_get_block_formatters() {
221
222	$block_formatters = array();
223
224	/**
225	* Registers block formatters in Gutenberg for the ConvertKit Plugin.
226	*
227	* @since 2.2.0
228	*
229	* @param array $block_formatters Block formatters.
230	*/
231	$block_formatters = apply_filters( 'convertkit_get_block_formatters', $block_formatters );
232
233	return $block_formatters;
234
235	}
236
237	/**
238	* Helper method to get registered plugin sidebars.
239	*
240	* @since 3.3.0
241	*
242	* @return array Plugin sidebars
243	*/
244	function convertkit_get_plugin_sidebars() {
245
246	$plugin_sidebars = array();
247
248	/**
249	* Registers plugin sidebars for the WordPress block editor.
250	*
251	* @since 3.3.0
252	*
253	* @param array $plugin_sidebars Plugin sidebars.
254	*/
255	$plugin_sidebars = apply_filters( 'convertkit_plugin_sidebars', $plugin_sidebars );
256
257	return $plugin_sidebars;
258
259	}
260
261	/**
262	* Helper method to get registered pre-publish actions.
263	*
264	* @since 2.4.0
265	*
266	* @return array Pre-publish actions
267	*/
268	function convertkit_get_pre_publish_actions() {
269
270	$pre_publish_actions = array();
271
272	/**
273	* Registers pre-publish actions for the ConvertKit Plugin.
274	*
275	* @since 2.4.0
276	*
277	* @param array $pre_publish_panels Pre-publish actions.
278	*/
279	$pre_publish_actions = apply_filters( 'convertkit_get_pre_publish_actions', $pre_publish_actions );
280
281	return $pre_publish_actions;
282
283	}
284
285	/**
286	* Helper method to get registered importers that can replace third party
287	* form shortcodes and blocks with Kit form shortcodes and blocks.
288	*
289	* @since 3.1.7
290	*
291	* @return array Importers.
292	*/
293	function convertkit_get_form_importers() {
294
295	$importers = array();
296
297	/**
298	* Registers form importers for the ConvertKit Plugin.
299	*
300	* @since 3.1.7
301	*
302	* @param array $importers Importers.
303	*/
304	$importers = apply_filters( 'convertkit_get_form_importers', $importers );
305
306	return $importers;
307
308	}
309
310	/**
311	* Helper method to return the Plugin Settings Link
312	*
313	* @since 1.9.6
314	*
315	* @param array $query_args Optional Query Args.
316	* @return string Settings Link
317	*/
318	function convertkit_get_settings_link( $query_args = array() ) {
319
320	$query_args = array_merge(
321	$query_args,
322	array(
323	'page' => '_wp_convertkit_settings',
324	)
325	);
326
327	return add_query_arg( $query_args, admin_url( 'options-general.php' ) );
328
329	}
330
331	/**
332	* Helper method to return the Plugin Settings Link
333	*
334	* @since 2.2.4
335	*
336	* @param array $query_args Optional Query Args.
337	* @return string Settings Link
338	*/
339	function convertkit_get_setup_wizard_plugin_link( $query_args = array() ) {
340
341	$query_args = array_merge(
342	$query_args,
343	array(
344	'page' => 'convertkit-setup',
345	)
346	);
347
348	return add_query_arg( $query_args, admin_url( 'options.php' ) );
349
350	}
351
352	/**
353	* Helper method to return the URL the user needs to visit to register a ConvertKit account.
354	*
355	* @since 1.9.8.4
356	*
357	* @return string ConvertKit Registration URL.
358	*/
359	function convertkit_get_registration_url() {
360
361	return add_query_arg(
362	array(
363	'utm_source' => 'wordpress',
364	'utm_term' => get_locale(),
365	'utm_content' => 'convertkit',
366	),
367	'https://app.kit.com/users/signup'
368	);
369
370	}
371
372	/**
373	* Helper method to return the URL the user needs to visit to sign in to their ConvertKit account.
374	*
375	* @since 1.9.6.1
376	*
377	* @return string ConvertKit Login URL.
378	*/
379	function convertkit_get_sign_in_url() {
380
381	return add_query_arg(
382	array(
383	'utm_source' => 'wordpress',
384	'utm_term' => get_locale(),
385	'utm_content' => 'convertkit',
386	),
387	'https://app.kit.com/'
388	);
389
390	}
391
392	/**
393	* Helper method to return the URL the user needs to visit to manage thier billing.
394	*
395	* @since 2.2.7
396	*
397	* @return string ConvertKit Billing URL.
398	*/
399	function convertkit_get_billing_url() {
400
401	return add_query_arg(
402	array(
403	'utm_source' => 'wordpress',
404	'utm_term' => get_locale(),
405	'utm_content' => 'convertkit',
406	),
407	'https://app.kit.com/account_settings/billing/'
408	);
409
410	}
411
412	/**
413	* Helper method to return the URL the user needs to visit on the ConvertKit app to create a new Form or Landing Page.
414	*
415	* @since 2.2.3
416	*
417	* @return string ConvertKit App URL
418	*/
419	function convertkit_get_new_form_url() {
420
421	return add_query_arg(
422	array(
423	'utm_source' => 'wordpress',
424	'utm_term' => get_locale(),
425	'utm_content' => 'convertkit',
426	),
427	'https://app.kit.com/forms/new/'
428	);
429
430	}
431
432	/**
433	* Helper method to return the URL the user needs to visit to edit ConvertKit forms.
434	*
435	* @since 2.2.3
436	*
437	* @return string ConvertKit Form Editor URL.
438	*/
439	function convertkit_get_form_editor_url() {
440
441	return add_query_arg(
442	array(
443	'utm_source' => 'wordpress',
444	'utm_term' => get_locale(),
445	'utm_content' => 'convertkit',
446	),
447	'https://app.kit.com/forms'
448	);
449
450	}
451
452	/**
453	* Helper method to return the URL the user needs to visit on the ConvertKit app to create a new Landing Page.
454	*
455	* @since 2.5.5
456	*
457	* @return string ConvertKit App URL
458	*/
459	function convertkit_get_new_landing_page_url() {
460
461	return add_query_arg(
462	array(
463	'utm_source' => 'wordpress',
464	'utm_term' => get_locale(),
465	'utm_content' => 'convertkit',
466	),
467	'https://app.kit.com/pages/new/'
468	);
469
470	}
471
472	/**
473	* Helper method to return the URL the user needs to visit on the ConvertKit app to create a new Tag.
474	*
475	* @since 2.3.3
476	*
477	* @return string ConvertKit App URL.
478	*/
479	function convertkit_get_new_tag_url() {
480
481	return add_query_arg(
482	array(
483	'utm_source' => 'wordpress',
484	'utm_term' => get_locale(),
485	'utm_content' => 'convertkit',
486	),
487	'https://app.kit.com/subscribers/'
488	);
489
490	}
491
492	/**
493	* Helper method to return the URL the user needs to visit on the ConvertKit app to create a new Broadcast.
494	*
495	* @since 2.2.6
496	*
497	* @return string ConvertKit App URL.
498	*/
499	function convertkit_get_new_broadcast_url() {
500
501	return add_query_arg(
502	array(
503	'utm_source' => 'wordpress',
504	'utm_term' => get_locale(),
505	'utm_content' => 'convertkit',
506	),
507	'https://app.kit.com/campaigns/'
508	);
509
510	}
511
512	/**
513	* Helper method to return the URL the user needs to visit on the ConvertKit app to edit a draft Broadcast.
514	*
515	* @since 2.4.0
516	*
517	* @param int $broadcast_id ConvertKit Broadcast ID.
518	* @return string ConvertKit App URL.
519	*/
520	function convertkit_get_edit_broadcast_url( $broadcast_id ) {
521
522	return add_query_arg(
523	array(
524	'utm_source' => 'wordpress',
525	'utm_term' => get_locale(),
526	'utm_content' => 'convertkit',
527	),
528	sprintf(
529	'https://app.kit.com/campaigns/%s/draft',
530	$broadcast_id
531	)
532	);
533
534	}
535
536	/**
537	* Helper method to return the URL the user needs to visit on the ConvertKit app to create a new Product.
538	*
539	* @since 2.2.3
540	*
541	* @return string ConvertKit App URL.
542	*/
543	function convertkit_get_new_product_url() {
544
545	return add_query_arg(
546	array(
547	'utm_source' => 'wordpress',
548	'utm_term' => get_locale(),
549	'utm_content' => 'convertkit',
550	),
551	'https://app.kit.com/products/new/'
552	);
553
554	}
555
556	/**
557	* Helper method to enqueue the frontend CSS file.
558	*
559	* @since 3.2.0
560	*/
561	function convertkit_enqueue_frontend_css() {
562
563	wp_enqueue_style( 'convertkit-frontend', CONVERTKIT_PLUGIN_URL . 'resources/frontend/css/frontend.css', array(), CONVERTKIT_PLUGIN_VERSION );
564
565	}
566
567	/**
568	* Helper method to enqueue the frontend JS file.
569	*
570	* @since 3.2.0
571	*/
572	function convertkit_enqueue_frontend_js() {
573
574	wp_enqueue_script(
575	'convertkit-js',
576	CONVERTKIT_PLUGIN_URL . 'resources/frontend/js/dist/frontend.min.js',
577	array(),
578	CONVERTKIT_PLUGIN_VERSION,
579	true
580	);
581
582	}
583
584	/**
585	* Helper method to enqueue Select2 scripts for use within the ConvertKit Plugin.
586	*
587	* @since 1.9.6.4
588	*/
589	function convertkit_select2_enqueue_scripts() {
590
591	wp_enqueue_script( 'convertkit-select2', 'https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/js/select2.min.js', array( 'jquery' ), CONVERTKIT_PLUGIN_VERSION, false );
592	wp_enqueue_script( 'convertkit-admin-select2', CONVERTKIT_PLUGIN_URL . 'resources/backend/js/select2.js', array( 'convertkit-select2' ), CONVERTKIT_PLUGIN_VERSION, false );
593
594	}
595
596	/**
597	* Helper method to enqueue Select2 stylesheets for use within the ConvertKit Plugin.
598	*
599	* @since 1.9.6.4
600	*/
601	function convertkit_select2_enqueue_styles() {
602
603	wp_enqueue_style( 'convertkit-select2', 'https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/css/select2.min.css', array(), CONVERTKIT_PLUGIN_VERSION );
604	wp_enqueue_style( 'convertkit-admin-select2', CONVERTKIT_PLUGIN_URL . 'resources/backend/css/select2.css', array(), CONVERTKIT_PLUGIN_VERSION );
605
606	}
607
608	/**
609	* Return the contents of the given local file.
610	*
611	* @since 2.2.2
612	*
613	* @param string $local_file Local file, including path.
614	* @return string File contents.
615	*/
616	function convertkit_get_file_contents( $local_file ) {
617
618	// Bail if the file doesn't exist.
619	if ( ! file_exists( $local_file ) ) {
620	return '';
621	}
622
623	// Read file.
624	$contents = file_get_contents( $local_file ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
625
626	// Return an empty string if the contents of the file could not be read.
627	if ( ! $contents ) {
628	return '';
629	}
630
631	// Return file's contents.
632	return $contents;
633
634	}
635
636	/**
637	* Returns a dropdown field commonly used for settings, comprising of:
638	* - Do not subscribe
639	* - Subscribe
640	* - Subscribe to Form
641	*
642	* @since 2.5.2
643	*
644	* @param string $name Field name.
645	* @param string $value Field value.
646	* @param string $id Field ID attribute.
647	* @param string $css_class Field CSS class(es).
648	* @param string $context Resource context.
649	* @param bool\|array $additional_options Additional <option> key/value pairs.
650	*/
651	function convertkit_get_subscription_dropdown_field( $name, $value, $id, $css_class = '', $context = '', $additional_options = false ) { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter
652
653	// Load resource classes.
654	$forms = new ConvertKit_Resource_Forms( $context );
655	$tags = new ConvertKit_Resource_Tags( $context );
656	$sequences = new ConvertKit_Resource_Sequences( $context );
657
658	ob_start();
659	include CONVERTKIT_PLUGIN_PATH . '/views/backend/subscription-dropdown-field.php';
660	$output = trim( ob_get_clean() );
661
662	// Return output.
663	return $output;
664
665	}
666
667	/**
668	* Helper method to safely call get_current_screen(), returning false
669	* if the function is not available or returns null.
670	*
671	* Otherwise returns the given WP_Screen property.
672	*
673	* @since 2.5.9
674	*
675	* @param string $property WP_Screen property to return.
676	* @return bool\|string
677	*/
678	function convertkit_get_current_screen( $property ) {
679
680	// Bail if we cannot determine the screen.
681	if ( ! function_exists( 'get_current_screen' ) ) {
682	return false;
683	}
684
685	// Get screen.
686	$screen = get_current_screen();
687
688	// Bail if the screen couldn't be determined.
689	if ( is_null( $screen ) ) {
690	return false;
691	}
692
693	// Return property.
694	return $screen->$property;
695
696	}
697
698	/**
699	* Outputs the Intercom help widget script.
700	*
701	* @since 2.7.2
702	*/
703	function convertkit_output_intercom_messenger() {
704
705	?>
706	<script>
707	const KIT_INTERCOM_APP_ID = 'e4n3xtxz';
708	window.intercomSettings = {
709	api_base: 'https://api-iam.intercom.io',
710	app_id: KIT_INTERCOM_APP_ID
711	};
712	</script>
713
714	<script>
715	(function(){var w=window;var ic=w.Intercom;if(typeof ic==="function"){ic('update',w.intercomSettings);}else{var d=document;var i=function(){i.c(arguments);};i.q=[];i.c=function(args){i.q.push(args);};w.Intercom=i;var l=function(){var s=d.createElement('script');s.type='text/javascript';s.async=true;s.src='https://widget.intercom.io/widget/' + KIT_INTERCOM_APP_ID;var x=d.getElementsByTagName('script')[0];x.parentNode.insertBefore(s, x);};if(document.readyState==='complete'){l();}else if(w.attachEvent){w.attachEvent('onload',l);}else{w.addEventListener('load',l,false);}}})();
716	</script>
717	<?php
718
719	}
720
721	/**
722	* Checks if the given Theme is active.
723	*
724	* @since 3.1.4
725	*
726	* @param string $theme_name Theme name.
727	* @return bool
728	*/
729	function convertkit_is_theme_active( $theme_name ) {
730
731	// Assume Theme isn't active if we can't detect it.
732	if ( ! function_exists( 'wp_get_theme' ) ) {
733	return false;
734	}
735
736	// Check the Parent Theme if we're on a Child Theme.
737	if ( wp_get_theme()->parent() ) {
738	$theme = wp_get_theme()->parent();
739	} else {
740	$theme = wp_get_theme();
741	}
742
743	return strtolower( $theme->get( 'Name' ) ) === strtolower( $theme_name );
744
745	}
746
747	/**
748	* Returns permitted HTML output when using wp_kses( ..., convertkit_kses_allowed_html()).
749	*
750	* @since 2.8.5
751	*/
752	function convertkit_kses_allowed_html() {
753
754	// Get WordPress' permitted HTML elements.
755	$elements = wp_kses_allowed_html( 'post' );
756
757	// Add form elements.
758	$form_elements = array(
759	'input' => array(
760	'type' => true,
761	'id' => true,
762	'name' => true,
763	'class' => true,
764	'value' => true,
765	'checked' => true,
766	'min' => true,
767	'max' => true,
768	'step' => true,
769	'data-*' => true,
770	),
771	'select' => array(
772	'id' => true,
773	'name' => true,
774	'class' => true,
775	'size' => true,
776	'multiple' => true,
777	'data-*' => true,
778	),
779	'option' => array(
780	'value' => true,
781	'selected' => true,
782	'data-*' => true,
783	),
784	'optgroup' => array(
785	'label' => true,
786	'data-*' => true,
787	),
788	'label' => array(
789	'for' => true,
790	),
791	);
792
793	return array_merge( $elements, $form_elements );
794
795	}
796
797	/**
798	* Saves the new access token, refresh token and its expiry, and schedules
799	* a WordPress Cron event to refresh the token on expiry.
800	*
801	* @since 3.1.1
802	*
803	* @param array $result New Access Token, Refresh Token and Expiry.
804	* @param string $client_id OAuth Client ID used for the Access and Refresh Tokens.
805	*/
806	function convertkit_maybe_update_credentials( $result, $client_id ) {
807
808	// Don't save these credentials if they're not for this Client ID.
809	// They're for another Kit Plugin that uses OAuth.
810	if ( $client_id !== CONVERTKIT_OAUTH_CLIENT_ID ) {
811	return;
812	}
813
814	$settings = new ConvertKit_Settings();
815	$settings->update_credentials( $result );
816
817	}
818
819	/**
820	* Deletes the stored access token, refresh token and its expiry from the Plugin settings,
821	* and clears any existing scheduled WordPress Cron event to refresh the token on expiry,
822	* when the user revokes the access token.
823	*
824	* @since 3.2.4
825	*
826	* @param string $client_id OAuth Client ID used for the Access and Refresh Tokens.
827	*/
828	function convertkit_delete_credentials( $client_id ) {
829
830	// Don't delete these credentials if they're not for this Client ID.
831	// They're for another Kit Plugin that uses OAuth.
832	if ( $client_id !== CONVERTKIT_OAUTH_CLIENT_ID ) {
833	return;
834	}
835
836	// Delete Access and Refresh Tokens.
837	$settings = new ConvertKit_Settings();
838	$settings->delete_credentials();
839
840	}
841
842	/**
843	* Deletes the stored access token, refresh token and its expiry from the Plugin settings,
844	* and clears any existing scheduled WordPress Cron event to refresh the token on expiry,
845	* when either:
846	* - The access token is invalid
847	* - The access token expired, and refreshing failed
848	*
849	* @since 3.1.1
850	*
851	* @param WP_Error $result Error result.
852	* @param string $client_id OAuth Client ID used for the Access and Refresh Tokens.
853	*/
854	function convertkit_maybe_delete_credentials( $result, $client_id ) {
855
856	// Don't save these credentials if they're not for this Client ID.
857	// They're for another Kit Plugin that uses OAuth.
858	if ( $client_id !== CONVERTKIT_OAUTH_CLIENT_ID ) {
859	return;
860	}
861
862	// If the error isn't a 401, don't delete credentials.
863	// This could be e.g. a temporary network error, rate limit or similar.
864	if ( $result->get_error_data( 'convertkit_api_error' ) !== 401 ) {
865	return;
866	}
867
868	// Persist an error notice in the WordPress Administration until the user fixes the problem.
869	WP_ConvertKit()->get_class( 'admin_notices' )->add( 'authorization_failed' );
870
871	$settings = new ConvertKit_Settings();
872	$settings->delete_credentials();
873
874	}
875
876	// Update Access Token when refreshed by the API class.
877	add_action( 'convertkit_api_get_access_token', 'convertkit_maybe_update_credentials', 10, 2 );
878	add_action( 'convertkit_api_refresh_token', 'convertkit_maybe_update_credentials', 10, 2 );
879
880	// Delete credentials when the user revokes the access and refresh tokens.
881	add_action( 'convertkit_api_revoke_tokens', 'convertkit_delete_credentials', 10, 1 );
882
883	// Delete credentials if the API class uses a invalid access token.
884	// This prevents the Plugin making repetitive API requests that will 401.
885	add_action( 'convertkit_api_access_token_invalid', 'convertkit_maybe_delete_credentials', 10, 2 );
886