formidable / classes / controllers / FrmEntriesAJAXSubmitController.php

FrmEntriesAJAXSubmitController.php in Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More 6.12, at classes/controllers/FrmEntriesAJAXSubmitController.php

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1	<?php
2	if ( ! defined( 'ABSPATH' ) ) {
3	die( 'You are not allowed to call this page directly.' );
4	}
5
6	/**
7	* @since 6.2
8	*/
9	class FrmEntriesAJAXSubmitController {
10
11	/**
12	* Create an entry when the ajax_submit option is on.
13	* If Pro is active, FrmProEntriesController::ajax_create will be used instead.
14	*
15	* @return void
16	*/
17	public static function ajax_create() {
18	// This is called before we exit early to cover the conflict in Pro as well.
19	self::fix_woocommerce_conflict();
20
21	if ( is_callable( 'FrmProEntriesController::ajax_create' ) ) {
22	// Let Pro handle AJAX Submit if it's available.
23	// This is because Pro requires additional code to support other Pro features.
24	return;
25	}
26
27	if ( ! FrmAppHelper::doing_ajax() ) {
28	// Normally, this function would be triggered with the wp_ajax hook, but we need it fired sooner.
29	return;
30	}
31
32	if ( 'frm_entries_create' !== FrmAppHelper::get_post_param( 'action', '', 'sanitize_title' ) ) {
33	// Not a Formidable AJAX create request so exit early.
34	return;
35	}
36
37	$response = array(
38	'errors' => array(),
39	'content' => '',
40	'pass' => false,
41	);
42
43	$form_id = FrmAppHelper::get_post_param( 'form_id', 0, 'absint' );
44	if ( ! $form_id ) {
45	echo json_encode( $response );
46	wp_die();
47	}
48
49	$form = FrmForm::getOne( $form_id );
50	if ( ! $form ) {
51	echo json_encode( $response );
52	wp_die();
53	}
54
55	$is_ajax_on = FrmForm::is_ajax_on( $form );
56	if ( ! $is_ajax_on ) {
57	// This continues in the Pro version as it is required for other features including in-place edit.
58	// In Lite, if AJAX submit is not on, just exit early as this function is getting called incorrectly.
59	echo json_encode( $response );
60	wp_die();
61	}
62
63	$errors = FrmEntryValidate::validate( wp_unslash( $_POST ) ); // phpcs:ignore WordPress.Security.NonceVerification.Missing
64
65	if ( ! $errors ) {
66	global $frm_vars;
67	$frm_vars['ajax'] = true;
68	$frm_vars['css_loaded'] = true;
69
70	FrmEntriesController::process_entry( '', true );
71
72	$title = FrmFormState::get_from_request( 'title', 'auto' );
73	$description = FrmFormState::get_from_request( 'description', 'auto' );
74	$response['content'] .= FrmFormsController::show_form( $form->id, '', $title, $description );
75
76	// Trigger the footer scripts if there is a form to show.
77	if ( ! empty( $frm_vars['forms_loaded'] ) ) {
78	ob_start();
79	self::print_ajax_scripts();
80	$response['content'] .= ob_get_contents();
81	ob_end_clean();
82
83	// Mark the end of added footer content.
84	$response['content'] .= '<span class="frm_end_ajax_' . $form->id . '"></span>';
85	}
86	} else {
87	$obj = array();
88	foreach ( $errors as $field => $error ) {
89	$field_id = str_replace( 'field', '', $field );
90	$error = self::maybe_modify_ajax_error( $error, $field_id, $form, $errors );
91	$obj[ $field_id ] = $error;
92	}
93
94	$response['errors'] = $obj;
95	$invalid_msg = FrmFormsHelper::get_invalid_error_message( array( 'form' => $form ) );
96	$response['error_message'] = FrmFormsHelper::get_success_message(
97	array(
98	'message' => $invalid_msg,
99	'form' => $form,
100	'entry_id' => 0,
101	'class' => FrmFormsHelper::form_error_class(),
102	)
103	);
104	}//end if
105
106	$response = self::check_for_failed_form_submission( $response, $form->id );
107
108	echo json_encode( $response );
109	wp_die();
110	}
111
112	/**
113	* Prevent WooCommerce 7.6.0 from triggering a fatal error when wp_print_footer_scripts is called.
114	*
115	* @since 6.2.3
116	*
117	* @return void
118	*/
119	private static function fix_woocommerce_conflict() {
120	add_action(
121	'wp_print_footer_scripts',
122	function () {
123	if ( ! function_exists( 'get_current_screen' ) ) {
124	require_once ABSPATH . 'wp-admin/includes/screen.php';
125	}
126
127	if ( ! class_exists( 'WP_Screen', false ) ) {
128	require_once ABSPATH . 'wp-admin/includes/class-wp-screen.php';
129	}
130
131	FrmAppHelper::set_current_screen_and_hook_suffix();
132	},
133	1
134	);
135	}
136
137	/**
138	* Load CAPTCHA script after AJAX submit so subsequent form CAPTCHAs don't break.
139	*
140	* @since 6.2
141	*
142	* @return void
143	*/
144	private static function print_ajax_scripts() {
145	global $wp_scripts;
146	$keep_scripts = array( 'captcha-api' );
147	$keep_scripts = apply_filters( 'frm_ajax_load_scripts', $keep_scripts );
148	$registered_scripts = (array) $wp_scripts->registered;
149	$registered_scripts = array_diff( array_keys( $registered_scripts ), $keep_scripts );
150	$wp_scripts->done = array_merge( $wp_scripts->done, $registered_scripts );
151	wp_print_footer_scripts();
152	}
153
154	/**
155	* If a field has custom HTML for errors, apply it around the message.
156	*
157	* @since 6.2
158	*
159	* @param string $error
160	* @param string $field_id
161	* @param stdClass $form the form being submitted (not necessarily the field's form when embedded/repeated).
162	* @param array $errors all errors that were caught in this form submission, passed into the frm_before_replace_shortcodes filter for reference.
163	* @return string
164	*/
165	private static function maybe_modify_ajax_error( $error, $field_id, $form, $errors ) {
166	if ( ! is_numeric( $field_id ) ) {
167	return $error;
168	}
169
170	$use_field = FrmField::getOne( $field_id );
171
172	if ( ! $use_field ) {
173	return $error;
174	}
175
176	$use_field = FrmFieldsHelper::setup_edit_vars( $use_field );
177	$error_body = FrmFieldsController::pull_custom_error_body_from_custom_html( $form, $use_field, $errors );
178
179	if ( false !== $error_body ) {
180	$error = str_replace( '[error]', $error, $error_body );
181	$error = str_replace( '[key]', $use_field['field_key'], $error );
182	}
183
184	return $error;
185	}
186
187	/**
188	* Confirm that the result of calling FrmFormsController::show_form added the failed message for a duplicate entry to the HTML.
189	* If it did, move the message to the errors key instead of returning the content.
190	*
191	* @since 6.2
192	*
193	* @param array $response
194	* @param int\|string $form_id
195	* @return array
196	*/
197	private static function check_for_failed_form_submission( $response, $form_id ) {
198	$frm_settings = FrmAppHelper::get_settings( array( 'current_form' => $form_id ) );
199
200	if ( false !== strpos( $response['content'], $frm_settings->failed_msg ) ) {
201	$response['errors']['failed'] = $frm_settings->failed_msg;
202	$response['content'] = '';
203	}
204
205	return $response;
206	}
207	}
208