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<?php
/**
* Process and validate form entries.
*
* @since 1.0.0
*/
class WPForms_Process {
/**
* Store errors.
*
* @since 1.0.0
*
* @var array
*/
public $errors;
/**
* Confirmation message.
*
* @var string
*/
public $confirmation_message;
/**
* Current confirmation.
*
* @since 1.6.9
*
* @var array
*/
private $confirmation;
/**
* Store formatted fields.
*
* @since 1.0.0
*
* @var array
*/
public $fields;
/**
* Store the ID of a successful entry.
*
* @since 1.2.3
*
* @var int
*/
public $entry_id = 0;
/**
* Form data and settings.
*
* @since 1.4.5
*
* @var array
*/
public $form_data;
/**
* If a valid return has was processed.
*
* @since 1.4.5
*
* @var bool
*/
public $valid_hash = false;
/**
* Primary class constructor.
*
* @since 1.0.0
*/
public function __construct() {
add_action( 'wp', array( $this, 'listen' ) );
add_action( 'wp_ajax_wpforms_submit', array( $this, 'ajax_submit' ) );
add_action( 'wp_ajax_nopriv_wpforms_submit', array( $this, 'ajax_submit' ) );
}
/**
* Listen to see if this is a return callback or a posted form entry.
*
* @since 1.0.0
*/
public function listen() {
// Catch the post_max_size overflow.
if ( $this->post_max_size_overflow() ) {
return;
}
// phpcs:disable WordPress.Security.NonceVerification
if ( ! empty( $_GET['wpforms_return'] ) ) {
// Additional redirect trigger for addons.
$this->entry_confirmation_redirect( '', sanitize_text_field( wp_unslash( $_GET['wpforms_return'] ) ) );
}
$form_id = ! empty( $_POST['wpforms']['id'] ) ? absint( $_POST['wpforms']['id'] ) : 0;
if ( ! $form_id ) {
return;
}
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
$this->process( wp_unslash( $_POST['wpforms'] ) );
// phpcs:enable WordPress.Security.NonceVerification
if ( ! wpforms_is_amp() ) {
return;
}
// Send 400 Bad Request when there are errors.
if ( empty( $this->errors[ $form_id ] ) ) {
wp_send_json(
[
'message' => $this->get_confirmation_message( $this->form_data, $this->fields, $this->entry_id ),
],
200
);
return;
}
$message = $this->errors[ $form_id ]['header'];
if ( ! empty( $this->errors[ $form_id ]['footer'] ) ) {
$message .= ' ' . $this->errors[ $form_id ]['footer'];
}
wp_send_json(
[
'message' => $message,
],
400
);
}
/**
* Process the form entry.
*
* @since 1.0.0
* @since 1.6.4 Added hCaptcha support.
*
* @param array $entry Form submission raw data ($_POST).
*/
public function process( $entry ) {
$this->errors = array();
$this->fields = array();
$form_id = absint( $entry['id'] );
$form = wpforms()->form->get( $form_id );
// Validate form is real and active (published).
if ( ! $form || 'publish' !== $form->post_status ) {
$this->errors[ $form_id ]['header'] = esc_html__( 'Invalid form.', 'wpforms-lite' );
return;
}
/**
* Filter form data obtained during form process.
*
* @since 1.5.3
*
* @param array $form_data Form data.
* @param array $entry Form entry.
*/
$this->form_data = (array) apply_filters( 'wpforms_process_before_form_data', wpforms_decode( $form->post_content ), $entry );
if ( ! isset( $this->form_data['fields'], $this->form_data['id'] ) ) {
$error_id = uniqid();
// Logs missing form data.
wpforms_log(
/* translators: %s - error unique ID. */
sprintf( esc_html__( 'Missing form data on form submission process %s', 'wpforms-lite' ), $error_id ),
esc_html__( 'Form data is not an array in `\WPForms_Process::process()`. It might be caused by incorrect data returned by `wpforms_process_before_form_data` filter. Verify whether you have a custom code using this filter and debug value it is returning.', 'wpforms-lite' ),
[
'type' => [ 'error', 'entry' ],
'form_id' => $form_id,
]
);
$error_messages[] = esc_html__( 'Your form has not been submitted because data is missing from the entry.', 'wpforms-lite' );
if ( wpforms_setting( 'logs-enable' ) && wpforms_current_user_can( wpforms_get_capability_manage_options() ) ) {
$error_messages[] = sprintf(
wp_kses( /* translators: %s - URL to the WForms Logs admin page. */
__( 'Check the WPForms » Tools » <a href="%s">Logs</a> for more details.', 'wpforms-lite' ),
[ 'a' => [ 'href' => [] ] ]
),
esc_url(
add_query_arg(
[
'page' => 'wpforms-tool',
'view' => 'logs',
],
admin_url( 'admin.php' )
)
)
);
/* translators: %s - error unique ID. */
$error_messages[] = sprintf( esc_html__( 'Error ID: %s.', 'wpforms-lite' ), $error_id );
}
$errors[ $form_id ]['header'] = implode( '<br>', $error_messages );
$this->errors = $errors;
return;
}
// Pre-process/validate hooks and filter.
// Data is not validated or cleaned yet so use with caution.
$entry = apply_filters( 'wpforms_process_before_filter', $entry, $this->form_data );
do_action( 'wpforms_process_before', $entry, $this->form_data );
do_action( "wpforms_process_before_{$form_id}", $entry, $this->form_data );
// Validate fields.
foreach ( $this->form_data['fields'] as $field_properties ) {
$field_id = $field_properties['id'];
$field_type = $field_properties['type'];
$field_submit = isset( $entry['fields'][ $field_id ] ) ? $entry['fields'][ $field_id ] : '';
do_action( "wpforms_process_validate_{$field_type}", $field_id, $field_submit, $this->form_data );
}
// CAPTCHA check.
$captcha_settings = wpforms_get_captcha_settings();
$bypass_captcha = apply_filters( 'wpforms_process_bypass_captcha', false, $entry, $this->form_data );
if (
! empty( $captcha_settings['provider'] ) &&
$captcha_settings['provider'] !== 'none' &&
! empty( $captcha_settings['site_key'] ) &&
! empty( $captcha_settings['secret_key'] ) &&
isset( $this->form_data['settings']['recaptcha'] ) &&
(int) $this->form_data['settings']['recaptcha'] === 1 &&
empty( $bypass_captcha ) &&
! isset( $_POST['__amp_form_verify'] ) // phpcs:ignore WordPress.Security.NonceVerification.Missing -- No need to check CAPTCHA until form is submitted.
&&
( ( $captcha_settings['provider'] === 'recaptcha' && $captcha_settings['recaptcha_type'] === 'v3' ) || ! wpforms_is_amp() ) // AMP requires Google reCAPTCHA v3.
) {
if ( $captcha_settings['provider'] === 'hcaptcha' ) {
$verify_url_raw = 'https://hcaptcha.com/siteverify';
$captcha_provider = esc_html__( 'hCaptcha', 'wpforms-lite' );
$post_key = 'h-captcha-response';
} else {
$verify_url_raw = 'https://www.google.com/recaptcha/api/siteverify';
$captcha_provider = esc_html__( 'Google reCAPTCHA', 'wpforms-lite' );
$post_key = 'g-recaptcha-response';
}
/* translators: %s - The CAPTCHA provider name. */
$error = wpforms_setting( "{$captcha_settings['provider']}-fail-msg", sprintf( esc_html__( '%s verification failed, please try again later.', 'wpforms-lite' ), $captcha_provider ) );
$token = ! empty( $_POST[ $post_key ] ) ? $_POST[ $post_key ] : false; // phpcs:ignore
$is_recaptcha_v3 = $captcha_settings['provider'] === 'recaptcha' && $captcha_settings['recaptcha_type'] === 'v3';
if ( $is_recaptcha_v3 ) {
$token = ! empty( $_POST['wpforms']['recaptcha'] ) ? $_POST['wpforms']['recaptcha'] : false; // phpcs:ignore
}
$verify_query_arg = [
'secret' => $captcha_settings['secret_key'],
'response' => $token,
'remoteip' => wpforms_get_ip(),
];
/*
* hCaptcha uses user IP to better detect bots and their attacks on a form.
* Majority of our users have GDPR disabled.
* So we remove this data from the request only when it's not needed, depending on wpforms_is_collecting_ip_allowed($this->form_data) check.
*/
if ( ! wpforms_is_collecting_ip_allowed( $this->form_data ) ) {
unset( $verify_query_arg['remoteip'] );
}
$verify_url = add_query_arg( $verify_query_arg, $verify_url_raw );
/**
* Filter the CAPTCHA verify URL.
*
* @since 1.6.4
*
* @param string $verify_url The full CAPTCHA verify URL.
* @param string $verify_url_raw The CAPTCHA verify URL without query.
* @param string $verify_query_arg The query arguments for verify URL.
*/
$verify_url = apply_filters( 'wpforms_process_captcha_verify_url', $verify_url, $verify_url_raw, $verify_query_arg );
// API call.
$response = json_decode( wp_remote_retrieve_body( wp_remote_get( $verify_url ) ) );
if (
empty( $response->success ) ||
( $is_recaptcha_v3 && $response->score <= wpforms_setting( 'recaptcha-v3-threshold', '0.4' ) )
) {
if ( $is_recaptcha_v3 ) {
if ( isset( $response->score ) ) {
$error .= ' (' . esc_html( $response->score ) . ')';
}
$this->errors[ $form_id ]['footer'] = $error;
} else {
$this->errors[ $form_id ]['recaptcha'] = $error;
}
}
}
// Check if combined upload size exceeds allowed maximum.
$this->validate_combined_upload_size( $form );
// Initial error check.
// Don't proceed if there are any errors thus far. We provide a filter
// so that other features, such as conditional logic, have the ability
// to adjust blocking errors.
$errors = apply_filters( 'wpforms_process_initial_errors', $this->errors, $this->form_data );
if ( isset( $_POST['__amp_form_verify'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing
if ( empty( $errors[ $form_id ] ) ) {
wp_send_json( array(), 200 );
} else {
$verify_errors = array();
foreach ( $errors[ $form_id ] as $field_id => $error_fields ) {
$field = $this->form_data['fields'][ $field_id ];
$field_properties = wpforms()->frontend->get_field_properties( $field, $this->form_data );
if ( is_string( $error_fields ) ) {
if ( 'checkbox' === $field['type'] || 'radio' === $field['type'] || 'select' === $field['type'] ) {
$first = current( $field_properties['inputs'] );
$name = $first['attr']['name'];
} elseif ( isset( $field_properties['inputs']['primary']['attr']['name'] ) ) {
$name = $field_properties['inputs']['primary']['attr']['name'];
}
$verify_errors[] = array(
'name' => $name,
'message' => $error_fields,
);
} else {
foreach ( $error_fields as $error_field => $error_message ) {
if ( isset( $field_properties['inputs'][ $error_field ]['attr']['name'] ) ) {
$name = $field_properties['inputs'][ $error_field ]['attr']['name'];
}
$verify_errors[] = array(
'name' => $name,
'message' => $error_message,
);
}
}
}
wp_send_json(
array(
'verifyErrors' => $verify_errors,
),
400
);
}
return;
}
if ( ! empty( $errors[ $form_id ] ) ) {
if ( empty( $errors[ $form_id ]['header'] ) ) {
$errors[ $form_id ]['header'] = esc_html__( 'Form has not been submitted, please see the errors below.', 'wpforms-lite' );
}
$this->errors = $errors;
return;
}
// If a logged-in user fails the nonce check, we want to log the entry, disable the errors and fail silently.
// Please note that logs may be disabled and in this case nothing will be logged or reported.
if (
is_user_logged_in() &&
( empty( $entry['nonce'] ) || ! wp_verify_nonce( $entry['nonce'], "wpforms::form_{$form_id}" ) )
) {
// Logs XSS attempt depending on log levels set.
wpforms_log(
'Cross-site scripting attempt ' . uniqid( '', true ),
[ true, $entry ],
[
'type' => [ 'security' ],
'form_id' => $this->form_data['id'],
]
);
// Fail silently.
return;
}
$honeypot = wpforms()->get( 'honeypot' )->validate( $this->form_data, $this->fields, $entry );
// If we trigger the honey pot, we want to log the entry, disable the errors, and fail silently.
if ( $honeypot ) {
// Logs spam entry depending on log levels set.
wpforms_log(
'Spam Entry ' . uniqid(),
array( $honeypot, $entry ),
array(
'type' => array( 'spam' ),
'form_id' => $this->form_data['id'],
)
);
// Fail silently.
return;
}
$antispam = wpforms()->get( 'token' )->validate( $this->form_data, $this->fields, $entry );
// If spam - return early.
// For antispam, we want to make sure that we have a value, we are not using AMP, and the value is an error string.
if ( $antispam && ! wpforms_is_amp() && is_string( $antispam ) ) {
if ( $antispam ) {
$this->errors[ $form_id ]['header'] = $antispam;
}
// Logs spam entry depending on log levels set.
wpforms_log(
esc_html__( 'Spam Entry ' ) . uniqid(),
array( $antispam, $entry ),
array(
'type' => array( 'spam' ),
'form_id' => $this->form_data['id'],
)
);
return;
}
$akismet = wpforms()->get( 'akismet' )->validate( $this->form_data, $entry );
// If Akismet marks the entry as spam, we want to log the entry and fail silently.
if ( $akismet ) {
$this->errors[ $form_id ]['header'] = $akismet;
// Log the spam entry depending on log levels set.
wpforms_log(
'Spam Entry ' . uniqid(),
[ $akismet, $entry ],
[
'type' => [ 'spam' ],
'form_id' => $this->form_data['id'],
]
);
// Fail silently.
return;
}
// Pass the form created date into the form data.
$this->form_data['created'] = $form->post_date;
// Format fields.
foreach ( (array) $this->form_data['fields'] as $field_properties ) {
$field_id = $field_properties['id'];
$field_type = $field_properties['type'];
$field_submit = isset( $entry['fields'][ $field_id ] ) ? $entry['fields'][ $field_id ] : '';
do_action( "wpforms_process_format_{$field_type}", $field_id, $field_submit, $this->form_data );
}
// This hook is for internal purposes and should not be leveraged.
do_action( 'wpforms_process_format_after', $this->form_data );
// Process hooks/filter - this is where most addons should hook
// because at this point we have completed all field validation and
// formatted the data.
$this->fields = apply_filters( 'wpforms_process_filter', $this->fields, $entry, $this->form_data );
do_action( 'wpforms_process', $this->fields, $entry, $this->form_data );
do_action( "wpforms_process_{$form_id}", $this->fields, $entry, $this->form_data );
$this->fields = apply_filters( 'wpforms_process_after_filter', $this->fields, $entry, $this->form_data );
// One last error check - don't proceed if there are any errors.
if ( ! empty( $this->errors[ $form_id ] ) ) {
if ( empty( $this->errors[ $form_id ]['header'] ) ) {
$this->errors[ $form_id ]['header'] = esc_html__( 'Form has not been submitted, please see the errors below.', 'wpforms-lite' );
}
return;
}
// Success - add entry to database.
$this->entry_id = $this->entry_save( $this->fields, $entry, $this->form_data['id'], $this->form_data );
/**
* Runs right after adding entry to the database.
*
* @since 1.7.7
*
* @param array $fields Fields data.
* @param array $entry User submitted data.
* @param array $form_data Form data.
* @param int $entry_id Entry ID.
*/
do_action( 'wpforms_process_entry_saved', $this->fields, $entry, $this->form_data, $this->entry_id );
// Fire the logic to send notification emails.
$this->entry_email( $this->fields, $entry, $this->form_data, $this->entry_id, 'entry' );
// Pass completed and formatted fields in POST.
$_POST['wpforms']['complete'] = $this->fields;
// Pass entry ID in POST.
$_POST['wpforms']['entry_id'] = $this->entry_id;
// Logs entry depending on log levels set.
if ( wpforms()->is_pro() ) {
wpforms_log(
$this->entry_id ? "Entry {$this->entry_id}" : 'Entry',
$this->fields,
[
'type' => [ 'entry' ],
'parent' => $this->entry_id,
'form_id' => $this->form_data['id'],
]
);
}
// Post-process hooks.
do_action( 'wpforms_process_complete', $this->fields, $entry, $this->form_data, $this->entry_id );
do_action( "wpforms_process_complete_{$form_id}", $this->fields, $entry, $this->form_data, $this->entry_id );
$this->entry_confirmation_redirect( $this->form_data );
}
/**
* Check if combined upload size exceeds allowed maximum.
*
* @since 1.6.0
*
* @param \WP_Post $form Form post object.
*/
public function validate_combined_upload_size( $form ) {
$form_id = (int) $form->ID;
$upload_fields = wpforms_get_form_fields( $form, array( 'file-upload' ) );
if ( ! empty( $upload_fields ) && ! empty( $_FILES ) ) {
// Get $_FILES keys generated by WPForms only.
$files_keys = preg_filter( '/^/', 'wpforms_' . $form_id . '_', array_keys( $upload_fields ) );
// Filter uploads without errors. Individual errors are handled by WPForms_Field_File_Upload class.
$files = wp_list_filter( wp_array_slice_assoc( $_FILES, $files_keys ), array( 'error' => 0 ) );
$files_size = array_sum( wp_list_pluck( $files, 'size' ) );
$files_size_max = wpforms_max_upload( true );
if ( $files_size > $files_size_max ) {
// Add new header error preserving previous ones.
$this->errors[ $form_id ]['header'] = ! empty( $this->errors[ $form_id ]['header'] ) ? $this->errors[ $form_id ]['header'] . '<br>' : '';
$this->errors[ $form_id ]['header'] .= esc_html__( 'Uploaded files combined size exceeds allowed maximum.', 'wpforms-lite' );
}
}
}
/**
* Validate the form return hash.
*
* @since 1.0.0
*
* @param string $hash Base64-encoded hash of form and entry IDs.
*
* @return array|false False for invalid or form id.
*/
public function validate_return_hash( $hash = '' ) {
$query_args = base64_decode( $hash );
parse_str( $query_args, $output );
// Verify hash matches.
if ( wp_hash( $output['form_id'] . ',' . $output['entry_id'] ) !== $output['hash'] ) {
return false;
}
// Get lead and verify it is attached to the form we received with it.
$entry = wpforms()->entry->get( $output['entry_id'], [ 'cap' => false ] );
if ( empty( $entry->form_id ) ) {
return false;
}
if ( $output['form_id'] !== $entry->form_id ) {
return false;
}
return array(
'form_id' => absint( $output['form_id'] ),
'entry_id' => absint( $output['form_id'] ),
'fields' => null !== $entry && isset( $entry->fields ) ? $entry->fields : array(),
);
}
/**
* Check if the confirmation data are valid.
*
* @since 1.6.4
*
* @param array $data The confirmation data.
*
* @return bool
*/
protected function is_valid_confirmation( $data ) {
if ( empty( $data['type'] ) ) {
return false;
}
// Confirmation type: redirect, page or message.
$type = $data['type'];
return isset( $data[ $type ] ) && ! wpforms_is_empty_string( $data[ $type ] );
}
/**
* Redirect user to a page or URL specified in the form confirmation settings.
*
* @since 1.0.0
*
* @param array $form_data Form data and settings.
* @param string $hash Base64-encoded hash of form and entry IDs.
*/
public function entry_confirmation_redirect( $form_data = array(), $hash = '' ) {
// Maybe process return hash.
if ( ! empty( $hash ) ) {
$hash_data = $this->validate_return_hash( $hash );
if ( ! $hash_data || ! is_array( $hash_data ) ) {
return;
}
$this->valid_hash = true;
$this->entry_id = absint( $hash_data['entry_id'] );
$this->fields = json_decode( $hash_data['fields'], true );
$this->form_data = wpforms()->form->get(
absint( $hash_data['form_id'] ),
array(
'content_only' => true,
)
);
} else {
$this->form_data = $form_data;
}
// Backward compatibility.
if ( empty( $this->form_data['settings']['confirmations'] ) ) {
$this->form_data['settings']['confirmations'][1]['type'] = ! empty( $this->form_data['settings']['confirmation_type'] ) ? $this->form_data['settings']['confirmation_type'] : 'message';
$this->form_data['settings']['confirmations'][1]['message'] = ! empty( $this->form_data['settings']['confirmation_message'] ) ? $this->form_data['settings']['confirmation_message'] : esc_html__( 'Thanks for contacting us! We will be in touch with you shortly.', 'wpforms-lite' );
$this->form_data['settings']['confirmations'][1]['message_scroll'] = ! empty( $this->form_data['settings']['confirmation_message_scroll'] ) ? $this->form_data['settings']['confirmation_message_scroll'] : 1;
$this->form_data['settings']['confirmations'][1]['page'] = ! empty( $this->form_data['settings']['confirmation_page'] ) ? $this->form_data['settings']['confirmation_page'] : '';
$this->form_data['settings']['confirmations'][1]['redirect'] = ! empty( $this->form_data['settings']['confirmation_redirect'] ) ? $this->form_data['settings']['confirmation_redirect'] : '';
}
if ( empty( $this->form_data['settings']['confirmations'] ) || ! is_array( $this->form_data['settings']['confirmations'] ) ) {
return;
}
$confirmations = $this->form_data['settings']['confirmations'];
// Reverse sort confirmations by id to process newer ones first.
krsort( $confirmations );
$default_confirmation_key = min( array_keys( $confirmations ) );
foreach ( $confirmations as $confirmation_id => $confirmation ) {
// Last confirmation should execute in any case.
if ( $default_confirmation_key === $confirmation_id ) {
break;
}
if ( ! $this->is_valid_confirmation( $confirmation ) ) {
continue;
}
// phpcs:disable WPForms.PHP.ValidateHooks.InvalidHookName
/**
* Process confirmation filter.
*
* @since 1.4.8
*
* @param bool $process Whether to process the logic or not.
* @param array $fields List of submitted fields.
* @param array $form_data Form data and settings.
* @param int $id Confirmation ID.
*/
$process_confirmation = apply_filters( 'wpforms_entry_confirmation_process', true, $this->fields, $this->form_data, $confirmation_id );
// phpcs:enable WPForms.PHP.ValidateHooks.InvalidHookName
if ( $process_confirmation ) {
break;
}
}
$url = '';
// Redirect if needed, to either a page or URL, after form processing.
if ( ! empty( $confirmations[ $confirmation_id ]['type'] ) && 'message' !== $confirmations[ $confirmation_id ]['type'] ) {
if ( $confirmations[ $confirmation_id ]['type'] === 'redirect' ) {
$rawurlencode_callback = static function ( $value ) {
return $value === null ? null : rawurlencode( $value );
};
add_filter( 'wpforms_smarttags_process_field_id_value', $rawurlencode_callback );
$url = wpforms_process_smart_tags( $confirmations[ $confirmation_id ]['redirect'], $this->form_data, $this->fields, $this->entry_id );
remove_filter( 'wpforms_smarttags_process_field_id_value', $rawurlencode_callback );
}
if ( 'page' === $confirmations[ $confirmation_id ]['type'] ) {
$url = get_permalink( (int) $confirmations[ $confirmation_id ]['page'] );
}
}
if ( ! empty( $url ) ) {
$url = apply_filters( 'wpforms_process_redirect_url', $url, $this->form_data['id'], $this->fields, $this->form_data, $this->entry_id );
if ( wpforms_is_amp() ) {
/** This filter is documented in wp-includes/pluggable.php */
$url = apply_filters( 'wp_redirect', $url, 302 );
$url = wp_sanitize_redirect( $url );
header( sprintf( 'AMP-Redirect-To: %s', $url ) );
header( 'Access-Control-Expose-Headers: AMP-Redirect-To', false );
wp_send_json(
array(
'message' => __( 'Redirecting…', 'wpforms-lite' ),
'redirecting' => true,
),
200
);
} else {
wp_redirect( esc_url_raw( $url ) ); // phpcs:ignore
}
do_action( 'wpforms_process_redirect', $this->form_data['id'] );
do_action( "wpforms_process_redirect_{$this->form_data['id']}", $this->form_data['id'] );
exit;
}
// Pass a message to a frontend if no redirection happened.
if ( ! empty( $confirmations[ $confirmation_id ]['type'] ) && 'message' === $confirmations[ $confirmation_id ]['type'] ) {
$this->confirmation = $confirmations[ $confirmation_id ];
$this->confirmation_message = $confirmations[ $confirmation_id ]['message'];
if ( ! empty( $confirmations[ $confirmation_id ]['message_scroll'] ) ) {
wpforms()->frontend->confirmation_message_scroll = true;
}
}
}
/**
* Get confirmation message.
*
* @since 1.5.3
*
* @param array $form_data Form data and settings.
* @param array $fields Sanitized field data.
* @param int $entry_id Entry id.
*
* @return string Confirmation message.
*/
public function get_confirmation_message( $form_data, $fields, $entry_id ) {
if ( empty( $this->confirmation_message ) ) {
return '';
}
$confirmation_message = wpforms_process_smart_tags( $this->confirmation_message, $form_data, $fields, $entry_id );
$confirmation_message = apply_filters( 'wpforms_frontend_confirmation_message', wpautop( $confirmation_message ), $form_data, $fields, $entry_id );
return $confirmation_message;
}
/**
* Get current confirmation.
*
* @since 1.6.9
*
* @return array
*/
public function get_current_confirmation() {
return ! empty( $this->confirmation ) ? $this->confirmation : [];
}
/**
* Catch the post_max_size overflow.
*
* @since 1.5.2
*
* @return bool
*/
public function post_max_size_overflow() {
// phpcs:disable WordPress.Security.NonceVerification
if ( empty( $_SERVER['CONTENT_LENGTH'] ) || empty( $_GET['wpforms_form_id'] ) ) {
return false;
}
$form_id = (int) $_GET['wpforms_form_id'];
$total_size = (int) $_SERVER['CONTENT_LENGTH'];
$post_max_size = wpforms_size_to_bytes( ini_get( 'post_max_size' ) );
if ( ! ( $total_size > $post_max_size && empty( $_POST ) && $form_id > 0 ) ) {
return false;
}
// phpcs:enable WordPress.Security.NonceVerification
$error_msg = esc_html__( 'Form has not been submitted, please see the errors below.', 'wpforms-lite' );
$error_msg .= '<br>' . sprintf( /* translators: %1$.3f - the total size of the selected files in megabytes, %2$.3f - allowed file upload limit in megabytes.*/
esc_html__( 'The total size of the selected files %1$.3f MB exceeds the allowed limit %2$.3f MB.', 'wpforms-lite' ),
esc_html( $total_size / 1048576 ),
esc_html( $post_max_size / 1048576 )
);
$this->errors[ $form_id ]['header'] = $error_msg;
return true;
}
/**
* Send entry email notifications.
*
* @since 1.0.0
*
* @param array $fields List of fields.
* @param array $entry Submitted form entry.
* @param array $form_data Form data and settings.
* @param int $entry_id Saved entry id.
* @param string $context In which context this email is sent.
*/
public function entry_email( $fields, $entry, $form_data, $entry_id, $context = '' ) {
// Check that the form was configured for email notifications.
if ( empty( $form_data['settings']['notification_enable'] ) ) {
return;
}
// Provide the opportunity to override via a filter.
if ( ! apply_filters( 'wpforms_entry_email', true, $fields, $entry, $form_data ) ) {
return;
}
// Make sure we have and entry id.
if ( empty( $this->entry_id ) ) {
$this->entry_id = (int) $entry_id;
}
$fields = apply_filters( 'wpforms_entry_email_data', $fields, $entry, $form_data );
// Backwards compatibility for notifications before v1.4.3.
if ( empty( $form_data['settings']['notifications'] ) && ! empty( $form_data['settings']['notification_email'] ) ) {
$notifications[1] = array(
'email' => $form_data['settings']['notification_email'],
'subject' => $form_data['settings']['notification_subject'],
'sender_name' => $form_data['settings']['notification_fromname'],
'sender_address' => $form_data['settings']['notification_fromaddress'],
'replyto' => $form_data['settings']['notification_replyto'],
'message' => '{all_fields}',
);
} else {
$notifications = $form_data['settings']['notifications'];
}
foreach ( $notifications as $notification_id => $notification ) :
if ( empty( $notification['email'] ) ) {
continue;
}
$process_email = apply_filters( 'wpforms_entry_email_process', true, $fields, $form_data, $notification_id, $context );
if ( ! $process_email ) {
continue;
}
$email = array();
// Setup email properties.
/* translators: %s - form name. */
$email['subject'] = ! empty( $notification['subject'] ) ? $notification['subject'] : sprintf( esc_html__( 'New %s Entry', 'wpforms-lite' ), $form_data['settings']['form_title'] );
$email['address'] = explode( ',', wpforms_process_smart_tags( $notification['email'], $form_data, $fields, $this->entry_id ) );
$email['address'] = array_map( 'sanitize_email', $email['address'] );
$email['sender_address'] = ! empty( $notification['sender_address'] ) ? $notification['sender_address'] : get_option( 'admin_email' );
$email['sender_name'] = ! empty( $notification['sender_name'] ) ? $notification['sender_name'] : get_bloginfo( 'name' );
$email['replyto'] = ! empty( $notification['replyto'] ) ? $notification['replyto'] : false;
$email['message'] = ! empty( $notification['message'] ) ? $notification['message'] : '{all_fields}';
$email = apply_filters( 'wpforms_entry_email_atts', $email, $fields, $entry, $form_data, $notification_id );
// Create new email.
$emails = new WPForms_WP_Emails();
$emails->__set( 'form_data', $form_data );
$emails->__set( 'fields', $fields );
$emails->__set( 'notification_id', $notification_id );
$emails->__set( 'entry_id', $this->entry_id );
$emails->__set( 'from_name', $email['sender_name'] );
$emails->__set( 'from_address', $email['sender_address'] );
$emails->__set( 'reply_to', $email['replyto'] );
// Maybe include CC.
if ( ! empty( $notification['carboncopy'] ) && wpforms_setting( 'email-carbon-copy', false ) ) {
$emails->__set( 'cc', $notification['carboncopy'] );
}
$emails = apply_filters( 'wpforms_entry_email_before_send', $emails );
// Go.
foreach ( $email['address'] as $address ) {
$emails->send( trim( $address ), $email['subject'], $email['message'] );
}
endforeach;
}
/**
* Save entry to database.
*
* @since 1.0.0
*
* @param array $fields List of form fields.
* @param array $entry User submitted data.
* @param int $form_id Form ID.
* @param array $form_data Prepared form settings.
*
* @return int
*/
public function entry_save( $fields, $entry, $form_id, $form_data = array() ) {
do_action( 'wpforms_process_entry_save', $fields, $entry, $form_id, $form_data );
return $this->entry_id;
}
/**
* Process AJAX form submit.
*
* @since 1.5.3
*/
public function ajax_submit() {
// phpcs:disable WordPress.Security.NonceVerification.Missing
$form_id = isset( $_POST['wpforms']['id'] ) ? absint( $_POST['wpforms']['id'] ) : 0;
if ( empty( $form_id ) ) {
wp_send_json_error();
}
if ( isset( $_POST['wpforms']['post_id'] ) ) {
// We don't have a global $post when processing ajax requests.
// Therefore, it's needed to set a global $post manually for compatibility with functions used in smart tag processing.
global $post;
// phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
$post = WP_Post::get_instance( absint( $_POST['wpforms']['post_id'] ) );
}
// phpcs:enable WordPress.Security.NonceVerification.Missing
add_filter( 'wp_redirect', [ $this, 'ajax_process_redirect' ], 999 );
do_action( 'wpforms_ajax_submit_before_processing', $form_id );
// If redirect happens in listen(), ajax_process_redirect() gets executed because of the filter on `wp_redirect`.
// The code, that is below listen(), runs only if no redirect happened.
$this->listen();
$form_data = $this->form_data;
if ( empty( $form_data ) ) {
$form_data = wpforms()->form->get( $form_id, [ 'content_only' => true ] );
$form_data = apply_filters( 'wpforms_frontend_form_data', $form_data );
}
if ( ! empty( $this->errors[ $form_id ] ) ) {
$this->ajax_process_errors( $form_id, $form_data );
wp_send_json_error();
}
ob_start();
wpforms()->frontend->confirmation( $form_data );
$response = apply_filters( 'wpforms_ajax_submit_success_response', [ 'confirmation' => ob_get_clean() ], $form_id, $form_data );
do_action( 'wpforms_ajax_submit_completed', $form_id, $response );
wp_send_json_success( $response );
}
/**
* Process AJAX errors.
*
* @since 1.5.3
* @todo This should be re-used/combined for AMP verify-xhr requests.
*
* @param int $form_id Form ID.
* @param array $form_data Form data and settings.
*/
protected function ajax_process_errors( $form_id, $form_data ) {
$errors = isset( $this->errors[ $form_id ] ) ? $this->errors[ $form_id ] : array();
$errors = apply_filters( 'wpforms_ajax_submit_errors', $errors, $form_id, $form_data );
if ( empty( $errors ) ) {
wp_send_json_error();
}
// General errors are errors that cannot be populated with jQuery Validate plugin.
$general_errors = array_intersect_key( $errors, array_flip( array( 'header', 'footer', 'recaptcha' ) ) );
foreach ( $general_errors as $key => $error ) {
ob_start();
wpforms()->frontend->form_error( $key, $error );
$general_errors[ $key ] = ob_get_clean();
}
$fields = isset( $form_data['fields'] ) ? $form_data['fields'] : array();
// Get registered fields errors only.
$field_errors = array_intersect_key( $errors, $fields );
// Transform field ids to field names for jQuery Validate plugin.
foreach ( $field_errors as $key => $error ) {
$name = $this->ajax_error_field_name( $fields[ $key ], $form_data, $error );
if ( $name ) {
$field_errors[ $name ] = $error;
}
unset( $field_errors[ $key ] );
}
$response = array();
if ( $general_errors ) {
$response['errors']['general'] = $general_errors;
}
if ( $field_errors ) {
$response['errors']['field'] = $field_errors;
}
$response = apply_filters( 'wpforms_ajax_submit_errors_response', $response, $form_id, $form_data );
do_action( 'wpforms_ajax_submit_completed', $form_id, $response );
wp_send_json_error( $response );
}
/**
* Get field name for ajax error message.
*
* @since 1.6.3
*
* @param array $field Field settings.
* @param array $form_data Form data and settings.
* @param string $error Error message.
*
* @return string
*/
private function ajax_error_field_name( $field, $form_data, $error ) {
$props = wpforms()->frontend->get_field_properties( $field, $form_data );
return apply_filters( 'wpforms_process_ajax_error_field_name', '', $field, $props, $error );
}
/**
* Process AJAX redirect.
*
* @since 1.5.3
*
* @param string $url Redirect URL.
*/
public function ajax_process_redirect( $url ) {
// phpcs:ignore WordPress.Security.NonceVerification.Missing
$form_id = isset( $_POST['wpforms']['id'] ) ? absint( $_POST['wpforms']['id'] ) : 0;
if ( empty( $form_id ) ) {
wp_send_json_error();
}
$response = array(
'form_id' => $form_id,
'redirect_url' => $url,
);
$response = apply_filters( 'wpforms_ajax_submit_redirect', $response, $form_id, $url );
do_action( 'wpforms_ajax_submit_completed', $form_id, $response );
wp_send_json_success( $response );
}
}