formidable / classes / controllers / FrmEntriesAJAXSubmitController.php

FrmEntriesAJAXSubmitController.php in Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More 6.2.1, 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	if ( is_callable( 'FrmProEntriesController::ajax_create' ) ) {
19	// Let Pro handle AJAX Submit if it's available.
20	// This is because Pro requires additional code to support other Pro features.
21	return;
22	}
23
24	if ( ! FrmAppHelper::doing_ajax() ) {
25	// Normally, this function would be triggered with the wp_ajax hook, but we need it fired sooner.
26	return;
27	}
28
29	if ( 'frm_entries_create' !== FrmAppHelper::get_post_param( 'action', '', 'sanitize_title' ) ) {
30	// Not a Formidable AJAX create request so exit early.
31	return;
32	}
33
34	$response = array(
35	'errors' => array(),
36	'content' => '',
37	'pass' => false,
38	);
39
40	$form_id = FrmAppHelper::get_post_param( 'form_id', 0, 'absint' );
41	if ( ! $form_id ) {
42	echo json_encode( $response );
43	wp_die();
44	}
45
46	$form = FrmForm::getOne( $form_id );
47	if ( ! $form ) {
48	echo json_encode( $response );
49	wp_die();
50	}
51
52	$is_ajax_on = FrmForm::is_ajax_on( $form );
53	if ( ! $is_ajax_on ) {
54	// This continues in the Pro version as it is required for other features including in-place edit.
55	// In Lite, if AJAX submit is not on, just exit early as this function is getting called incorrectly.
56	echo json_encode( $response );
57	wp_die();
58	}
59
60	$errors = FrmEntryValidate::validate( wp_unslash( $_POST ) ); // phpcs:ignore WordPress.Security.NonceVerification.Missing
61
62	if ( ! $errors ) {
63	global $frm_vars;
64	$frm_vars['ajax'] = true;
65	$frm_vars['css_loaded'] = true;
66
67	FrmEntriesController::process_entry( '', true );
68
69	$title = FrmFormState::get_from_request( 'title', 'auto' );
70	$description = FrmFormState::get_from_request( 'description', 'auto' );
71	$response['content'] .= FrmFormsController::show_form( $form->id, '', $title, $description );
72
73	// Trigger the footer scripts if there is a form to show.
74	if ( ! empty( $frm_vars['forms_loaded'] ) ) {
75	ob_start();
76	self::print_ajax_scripts();
77	$response['content'] .= ob_get_contents();
78	ob_end_clean();
79
80	// Mark the end of added footer content.
81	$response['content'] .= '<span class="frm_end_ajax_' . $form->id . '"></span>';
82	}
83	} else {
84	$obj = array();
85	foreach ( $errors as $field => $error ) {
86	$field_id = str_replace( 'field', '', $field );
87	$error = self::maybe_modify_ajax_error( $error, $field_id, $form, $errors );
88	$obj[ $field_id ] = $error;
89	}
90
91	$response['errors'] = $obj;
92	$invalid_msg = FrmFormsHelper::get_invalid_error_message( array( 'form' => $form ) );
93	$response['error_message'] = FrmFormsHelper::get_success_message(
94	array(
95	'message' => $invalid_msg,
96	'form' => $form,
97	'entry_id' => 0,
98	'class' => FrmFormsHelper::form_error_class(),
99	)
100	);
101	}
102
103	$response = self::check_for_failed_form_submission( $response, $form->id );
104
105	echo json_encode( $response );
106	wp_die();
107	}
108
109	/**
110	* Load CAPTCHA script after AJAX submit so subsequent form CAPTCHAs don't break.
111	*
112	* @since 6.2
113	*
114	* @return void
115	*/
116	private static function print_ajax_scripts() {
117	global $wp_scripts;
118	$keep_scripts = array( 'captcha-api' );
119	$keep_scripts = apply_filters( 'frm_ajax_load_scripts', $keep_scripts );
120	$registered_scripts = (array) $wp_scripts->registered;
121	$registered_scripts = array_diff( array_keys( $registered_scripts ), $keep_scripts );
122	$wp_scripts->done = array_merge( $wp_scripts->done, $registered_scripts );
123	wp_print_footer_scripts();
124	}
125
126	/**
127	* If a field has custom HTML for errors, apply it around the message.
128	*
129	* @since 6.2
130	*
131	* @param string $error
132	* @param string $field_id
133	* @param stdClass $form the form being submitted (not necessarily the field's form when embedded/repeated).
134	* @param array $errors all errors that were caught in this form submission, passed into the frm_before_replace_shortcodes filter for reference.
135	* @return string
136	*/
137	private static function maybe_modify_ajax_error( $error, $field_id, $form, $errors ) {
138	if ( false !== strpos( $field_id, '-' ) ) {
139	// repeated fields look like field_id-repeater_id-iteration, so pull the first value for the field id.
140	list( $use_field_id ) = explode( '-', $field_id );
141	} else {
142	$use_field_id = $field_id;
143	}
144
145	if ( ! is_numeric( $use_field_id ) ) {
146	return $error;
147	}
148
149	$use_field = FrmField::getOne( $use_field_id );
150
151	if ( ! $use_field ) {
152	return $error;
153	}
154
155	$use_field = FrmFieldsHelper::setup_edit_vars( $use_field );
156	$error_body = FrmFieldsController::pull_custom_error_body_from_custom_html( $form, $use_field, $errors );
157
158	if ( false !== $error_body ) {
159	$error = str_replace( '[error]', $error, $error_body );
160	$error = str_replace( '[key]', $field_id, $error );
161	}
162
163	return $error;
164	}
165
166	/**
167	* Confirm that the result of calling FrmFormsController::show_form added the failed message for a duplicate entry to the HTML.
168	* If it did, move the message to the errors key instead of returning the content.
169	*
170	* @since 6.2
171	*
172	* @param array $response
173	* @param string\|int $form_id
174	* @return array
175	*/
176	private static function check_for_failed_form_submission( $response, $form_id ) {
177	$frm_settings = FrmAppHelper::get_settings( array( 'current_form' => $form_id ) );
178
179	if ( false !== strpos( $response['content'], $frm_settings->failed_msg ) ) {
180	$response['errors']['failed'] = $frm_settings->failed_msg;
181	$response['content'] = '';
182	}
183
184	return $response;
185	}
186	}
187