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<?php
/**
* Form block.
*
* @package ive
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
require_once IVE_DIR . 'src/blocks/form/field-attributes/index.php';
require_once IVE_DIR . 'src/blocks/form/field-label/index.php';
require_once IVE_DIR . 'src/blocks/form/field-description/index.php';
/**
* Class IVE_Form_Block
*/
class IVE_Form_Block {
/**
* Unique ID.
*
* @var integer
*/
public $form_id = 0;
/**
* Form post data after submit.
*
* @var array
*/
public $form_post_data = array();
/**
* Default form block attribute values.
*
* @var array
*/
public $default_attrs = array();
/**
* IVE_Form_Block constructor.
*/
public function __construct() {
add_action( 'template_redirect', array( $this, 'get_post_data' ) );
add_action( 'wp_footer', array( $this, 'reset_post_data' ) );
add_action( 'init', array( $this, 'init' ) );
add_action( 'ive_form_email_before_send', array( $this, 'mail_before_send' ) );
add_action( 'ive_form_email_after_send', array( $this, 'mail_after_send' ) );
add_filter( 'render_block', array( $this, 'maybe_submit_form' ), 10, 2 );
}
/**
* Save post data and redirect after form submitted.
*/
public function get_post_data() {
if ( ! is_admin() && ! session_id() ) {
session_start();
}
// phpcs:disable
if ( ! is_admin() && isset( $_POST['ive_form_id'] ) ) {
$_SESSION['ive_form_submit_post'] = IVE_Loader::ive_sanitize_array( $_POST );
wp_redirect( $_SERVER['REQUEST_URI'] );
exit;
}
// phpcs:enable
if ( isset( $_SESSION['ive_form_submit_post'] ) ) {
$this->form_post_data = $_SESSION['ive_form_submit_post'];
}
}
/**
* Reset post data.
*/
public function reset_post_data() {
if ( ! empty( $this->form_post_data ) ) {
$this->form_post_data = array();
}
if ( isset( $_SESSION['ive_form_submit_post'] ) ) {
unset( $_SESSION['ive_form_submit_post'] );
}
}
/**
* Init.
*/
public function init() {
if ( ! function_exists( 'register_block_type' ) ) {
return;
}
$from_email = '';
$admin_email = get_option( 'admin_email' );
$blogname = get_option( 'blogname' );
// phpcs:ignore
if ( isset( $_SERVER[ 'SERVER_NAME' ] ) ) {
// phpcs:ignore
$sitename = strtolower( $_SERVER[ 'SERVER_NAME' ] );
} else {
$site_url = site_url();
$site_url_parts = wp_parse_url( $site_url );
$sitename = $site_url_parts['host'];
}
if ( substr( $sitename, 0, 4 ) === 'www.' ) {
$sitename = substr( $sitename, 4 );
}
if ( strpbrk( $admin_email, '@' ) === '@' . $sitename ) {
$from_email = $admin_email;
} else {
$from_email = 'wordpress@' . $sitename;
}
$this->default_attrs = array(
'mailAllow' => true,
'mailTo' => $admin_email,
'mailSubject' => $blogname . ' "{field_subject}"',
'mailFrom' => $blogname . ' ' . $from_email,
'mailReplyTo' => '{field_email}',
'mailMessage' => '{all_fields}',
'confirmationType' => 'message',
'confirmationMessage' => esc_html__( 'Thank you for contacting us! We will be in touch with you shortly.', 'ibtana-visual-editor' ),
);
register_block_type(
'ive/form',
array(
'render_callback' => array( $this, 'block_render' ),
'attributes' => array(
'mailAllow' => array(
'type' => 'boolean',
'default' => $this->default_attrs['mailAllow'],
),
'mailTo' => array(
'type' => 'string',
'default' => $this->default_attrs['mailTo'],
),
'mailSubject' => array(
'type' => 'string',
'default' => $this->default_attrs['mailSubject'],
),
'mailFrom' => array(
'type' => 'string',
'default' => $this->default_attrs['mailFrom'],
),
'mailReplyTo' => array(
'type' => 'string',
'default' => $this->default_attrs['mailReplyTo'],
),
'mailMessage' => array(
'type' => 'string',
'default' => $this->default_attrs['mailMessage'],
),
'confirmationType' => array(
'type' => 'string',
'default' => $this->default_attrs['confirmationType'],
),
'confirmationMessage' => array(
'type' => 'string',
'default' => $this->default_attrs['confirmationMessage'],
),
'confirmationRedirect' => array(
'type' => 'string',
),
'className' => array(
'type' => 'string',
),
),
)
);
}
/**
* Register gutenberg block output
*
* @param array $attributes - block attributes.
* @param string $inner_blocks - inner blocks.
*
* @return string
*/
public function block_render( $attributes, $inner_blocks ) {
ob_start();
$class = 'ive-form';
if ( isset( $attributes['className'] ) ) {
$class .= ' ' . $attributes['className'];
}
if ( isset( $attributes['uniqueID'] ) ) {
$class .= ' ive-form' . $attributes['uniqueID'];
}
$form_slug = 'ive_form_' . $this->form_id;
$form_id = 'gkt_form_' . hash( 'crc32b', $form_slug );
$this->form_id += 1;
$url = add_query_arg( array() );
$frag = strstr( $url, '#' );
if ( $frag ) {
$url = substr( $url, 0, -strlen( $frag ) );
}
$url .= '#' . $form_id;
// Add unique slug to id and for attributes.
$inner_blocks = str_replace( 'id="', 'id="' . $form_id . '_', $inner_blocks );
$inner_blocks = str_replace( 'for="', 'for="' . $form_id . '_', $inner_blocks );
// Google reCaptcha.
$recaptcha_site_key = get_option( 'ive_google_recaptcha_api_site_key' );
$recaptcha_secret_key = get_option( 'ive_google_recaptcha_api_secret_key' );
?>
<div class="<?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $form_id ); ?>">
<form method="POST" name="ive-form" action="<?php echo esc_url( $url ); ?>">
<?php
// phpcs:ignore
echo do_blocks( $inner_blocks );
wp_nonce_field( 'ive_form', $form_id );
?>
<input type="hidden" name="ive_form_id" value="<?php echo esc_attr( $form_id ); ?>">
<?php
if ( $recaptcha_site_key && $recaptcha_secret_key ) {
?>
<input type="hidden" name="ive_form_google_recaptcha" />
<?php
}
?>
</form>
</div>
<?php
return ob_get_clean();
}
/**
* Submit form and replace Form block output.
*
* @param string $block_content - block content.
* @param array $block - block attributes.
*
* @return string
*/
public function maybe_submit_form( $block_content, $block ) {
if ( ! isset( $block['blockName'] ) || 'ive/form' !== $block['blockName'] ) {
return $block_content;
}
$form_id = '';
preg_match( '/<input type="hidden" name="ive_form_id" value="(\w+)"/', $block_content, $parse_form_id );
if ( $parse_form_id && isset( $parse_form_id[1] ) && $parse_form_id[1] ) {
$form_id = $parse_form_id[1];
}
if ( ! $form_id ) {
return $block_content;
}
$attributes = array_merge(
$this->default_attrs,
$block['attrs']
);
$class = 'ive-form';
if ( isset( $attributes['className'] ) ) {
$class .= ' ' . $attributes['className'];
}
$success = false;
$errors = array();
$new_content = '';
// Form send.
if ( isset( $this->form_post_data[ $form_id ] ) ) {
$nonce = sanitize_text_field( wp_unslash( $this->form_post_data[ $form_id ] ) );
if ( wp_verify_nonce( $nonce, 'ive_form' ) ) {
// validate Google reCaptcha.
if ( ! $this->verify_recaptcha() ) {
$errors[] = esc_html__( 'Google reCaptcha form verification failed.', 'ibtana-visual-editor' );
}
if ( ! count( $errors ) ) {
$success = true;
if ( $attributes['mailAllow'] ) {
do_action( 'ive_form_email_before_send', $form_id, $attributes );
$success = $this->process_mail( $attributes );
do_action( 'ive_form_email_after_send', $form_id, $attributes );
}
if ( ! $success ) {
$error = error_get_last();
$errors[] = isset( $error['message'] ) ? $error['message'] : esc_html__( 'Something went wrong while trying to send the form.', 'ibtana-visual-editor' );
}
}
} else {
$errors[] = esc_html__( 'Something went wrong while trying to send the form.', 'ibtana-visual-editor' );
}
$this->reset_post_data();
}
// Form submit errors.
if ( ! empty( $errors ) ) {
ob_start();
?>
<div class="ive-alert ive-alert-form ive-alert-form-error">
<div class="ive-alert-content">
<?php
foreach ( $errors as $error ) {
echo '<p>' . esc_html( $error ) . '</p>';
}
?>
</div>
</div>
<?php
$new_content = ob_get_clean();
// Form submit success.
} elseif ( $success ) {
ob_start();
if ( 'redirect' === $attributes['confirmationType'] ) {
?>
<div class="ive-alert ive-alert-form ive-alert-form-success"><div class="ive-alert-content"><p>
<?php
echo wp_kses_post(
sprintf(
// translators: %s - redirect link.
__( 'Your form is successfully submitted. Redirecting to %s...', 'ibtana-visual-editor' ),
'<a href="' . esc_url( $attributes['confirmationRedirect'] ) . '">' . esc_url( $attributes['confirmationRedirect'] ) . '</a>'
)
);
?>
</p></div></div>
<script>
setTimeout( () => {
window.location.href = "<?php echo esc_url( $attributes['confirmationRedirect'] ); ?>";
}, 3000 );
</script>
<?php
} else {
?>
<div class="ive-alert ive-alert-form ive-alert-form-success">
<div class="ive-alert-content">
<p>
<?php echo wp_kses_post( $attributes['confirmationMessage'] ); ?>
</p>
</div>
</div>
<?php
}
$new_content = ob_get_clean();
}
if ( $new_content ) {
ob_start();
?>
<div class="<?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $form_id ); ?>">
<?php echo $new_content; // phpcs:ignore ?>
</div>
<?php
return ob_get_clean();
}
return $block_content;
}
/**
* Verify Google reCaptcha.
*
* @return bool
*/
private function verify_recaptcha() {
$recaptcha_secret_key = get_option( 'ive_google_recaptcha_api_secret_key' );
$recaptcha_site_key = get_option( 'ive_google_recaptcha_api_site_key' );
// no captcha enabled.
if ( ! $recaptcha_secret_key || ! $recaptcha_site_key ) {
return true;
}
// phpcs:disable
if ( ! isset( $this->form_post_data['ive_form_google_recaptcha'] ) ) {
return false;
}
$token = sanitize_text_field( wp_unslash( $this->form_post_data['ive_form_google_recaptcha'] ) );
// phpcs:enable
// empty token.
if ( ! $token ) {
return false;
}
$verify_token_request = wp_remote_post(
'https://www.google.com/recaptcha/api/siteverify',
array(
'timeout' => 30,
'body' => array(
'secret' => $recaptcha_secret_key,
'response' => $token,
),
)
);
if ( is_wp_error( $verify_token_request ) ) {
return false;
}
$response = wp_remote_retrieve_body( $verify_token_request );
if ( is_wp_error( $response ) ) {
return false;
}
$response = json_decode( $response, true );
if ( ! isset( $response['success'] ) ) {
return false;
}
return $response['success'];
}
/**
* Template string with POST data.
*
* @param String $string - string for template.
*
* @return string
*/
public function template( $string ) {
$all_fields = '';
// phpcs:ignore
foreach ( (array) $this->form_post_data as $name => $val ) {
if ( is_array( $val ) && isset( $val['value'] ) ) {
$sanitized_label = isset( $val['label'] ) ? sanitize_text_field( wp_unslash( $val['label'] ) ) : '';
$sanitized_val = '';
if ( is_array( $val['value'] ) ) {
foreach ( $val['value'] as $val ) {
$sanitized_val .= '<li>' . sanitize_textarea_field( wp_unslash( $val ) ) . '</li>';
}
$sanitized_val = '<ul>' . $sanitized_val . '</ul>';
} else {
$sanitized_val = sanitize_textarea_field( wp_unslash( $val['value'] ) );
// Name field support.
if ( isset( $val['middle'] ) ) {
$sanitized_val .= ' ' . sanitize_textarea_field( wp_unslash( $val['middle'] ) );
}
if ( isset( $val['last'] ) ) {
$sanitized_val .= ' ' . sanitize_textarea_field( wp_unslash( $val['last'] ) );
}
}
$string = str_replace( "{{$name}}", $sanitized_val, $string );
$all_fields .= '
<table role="presentation" border="0" cellpadding="0" cellspacing="0" class="field-row"><tbody>
<tr><td class="field-row-label">' . ( $sanitized_label ? ( '<strong>' . $sanitized_label . '</strong>' ) : '' ) . '</td></tr>
<tr><td class="field-row-value">' . wpautop( $sanitized_val ) . '</td></tr>
</tbody></table>
';
}
}
$string = str_replace( '{all_fields}', $all_fields, $string );
return $string;
}
/**
* Process email using wp_mail function.
*
* @param array $attributes - Form block attributes.
*
* @return boolean
*/
public function process_mail( $attributes ) {
// Template all attributes.
foreach ( $attributes as $k => $attr ) {
if ( is_string( $attr ) ) {
$attributes[ $k ] = $this->template( $attr );
}
}
// Prepare headers.
$headers = "Content-Type: text/html; charset=utf-8\n";
$headers = "From: {$attributes['mailFrom']}\n";
$headers = "Return-Path: {$attributes['mailTo']}\n";
$headers = "Reply-To: {$attributes['mailReplyTo']}\n";
// Prepare message.
$message = $this->get_mail_html( $attributes );
return wp_mail( $attributes['mailTo'], $attributes['mailSubject'], $message, $headers );
}
/**
* Get mail HTML template.
*
* @param array $attributes - From block attributes.
*
* @return string
*/
public function get_mail_html( $attributes ) {
ob_start();
include IVE_DIR . 'src/blocks/form/mail-template/index.php';
return ob_get_clean();
}
/**
* Mail before send.
*/
public function mail_before_send() {
add_filter( 'wp_mail_content_type', array( $this, 'get_content_type' ) );
}
/**
* Mail after send.
*/
public function mail_after_send() {
remove_filter( 'wp_mail_content_type', array( $this, 'get_content_type' ) );
}
/**
* Change wp_mail content type to HTML.
*
* @return string
*/
public function get_content_type() {
return 'text/html';
}
}
new IVE_Form_Block();