File: /dom877180/wp-content/plugins/gravityview/includes/class-ajax.php
<?php
class GravityView_Ajax {
function __construct() {
//get field options
add_action( 'wp_ajax_gv_field_options', array( $this, 'get_field_options' ) );
// get available fields
add_action( 'wp_ajax_gv_available_fields', array( $this, 'get_available_fields_html' ) );
// get active areas
add_action( 'wp_ajax_gv_get_active_areas', array( $this, 'get_active_areas' ) );
// get preset fields
add_action( 'wp_ajax_gv_get_preset_fields', array( $this, 'get_preset_fields_config' ) );
// get preset fields
add_action( 'wp_ajax_gv_set_preset_form', array( $this, 'create_preset_form' ) );
add_action( 'wp_ajax_gv_sortable_fields_form', array( $this, 'get_sortable_fields' ) );
}
/**
* Handle exiting the script (for unit testing)
*
* @since 1.15
* @param bool|false $mixed
*
* @return bool
*/
private function _exit( $mixed = NULL ) {
/**
* Don't exit if we're running test suite.
* @since 1.15
*/
if( defined( 'DOING_GRAVITYVIEW_TESTS' ) && DOING_GRAVITYVIEW_TESTS ) {
return $mixed;
}
exit( $mixed );
}
/** -------- AJAX ---------- */
/**
* Verify the nonce. Exit if not verified.
* @return void
*/
function check_ajax_nonce() {
if ( ! isset( $_POST['nonce'] ) || ! wp_verify_nonce( $_POST['nonce'], 'gravityview_ajaxviews' ) ) {
$this->_exit( false );
}
}
/**
* AJAX action to get HTML markup for form(s) or template fields
* AJAX callback
*
* @return array|void Terminate request, exit with JSON response or return HTML markup
*/
function get_available_fields_html() {
$this->check_ajax_nonce();
$context = rgpost( 'context' );
// Return markup for a single or multiple contexts
if( $context ) {
$data = array(
esc_attr( $context ) => ''
);
} else {
$data = array(
'directory' => '',
'edit' => '',
'single' => ''
);
}
if ( is_array( rgpost( 'form_preset_ids' ) ) ) {
$form_ids = rgpost( 'form_preset_ids' );
} else {
$this->_exit( false );
return; // If inside unit tests, which don't exit, don't continue.
}
foreach ( $data as $context => $markup ) {
ob_start();
do_action( 'gravityview_render_field_pickers', $context, $form_ids );
$data[ $context ] = trim( ob_get_clean() );
}
if ( defined( 'DOING_GRAVITYVIEW_TESTS' ) && DOING_GRAVITYVIEW_TESTS ) {
return $data;
}
wp_send_json_success( $data );
}
/**
* Returns template active areas given a template ID
* AJAX callback
*
* @return void
*/
function get_active_areas() {
$this->check_ajax_nonce();
if( empty( $_POST['template_id'] ) ) {
$this->_exit( false );
}
ob_start();
do_action( 'gravityview_render_directory_active_areas', \GV\Utils::_POST('template_id'), 'directory', '', true, \GV\Utils::_POST( 'form_id', 0 ) );
$response['directory'] = ob_get_clean();
ob_start();
do_action( 'gravityview_render_directory_active_areas', \GV\Utils::_POST('template_id'), 'single', '', true, \GV\Utils::_POST( 'form_id', 0 ) );
$response['single'] = ob_get_clean();
$response = array_map( 'gravityview_strip_whitespace', $response );
$this->_exit( json_encode( $response ) );
}
/**
* Fill in active areas with preset configuration according to the template selected
* @return void
*/
function get_preset_fields_config() {
$this->check_ajax_nonce();
if( empty( $_POST['template_id'] ) ) {
$this->_exit( false );
}
// get the fields xml config file for this specific preset
$preset_fields_path = apply_filters( 'gravityview_template_fieldsxml', array(), $_POST['template_id'] );
// import fields
if( !empty( $preset_fields_path ) ) {
$presets = $this->import_fields( $preset_fields_path );
} else {
$presets = array( 'widgets' => array(), 'fields' => array() );
}
$template_id = esc_attr( $_POST['template_id'] );
// template areas
$template_areas_directory = apply_filters( 'gravityview_template_active_areas', array(), $template_id, 'directory' );
$template_areas_single = apply_filters( 'gravityview_template_active_areas', array(), $template_id, 'single' );
// widget areas
$default_widget_areas = \GV\Widget::get_default_widget_areas();
ob_start();
do_action('gravityview_render_active_areas', $template_id, 'widget', 'header', $default_widget_areas, $presets['widgets'] );
$response['header'] = ob_get_clean();
ob_start();
do_action('gravityview_render_active_areas', $template_id, 'widget', 'footer', $default_widget_areas, $presets['widgets'] );
$response['footer'] = ob_get_clean();
ob_start();
do_action('gravityview_render_active_areas', $template_id, 'field', 'directory', $template_areas_directory, $presets['fields'] );
$response['directory'] = ob_get_clean();
ob_start();
do_action('gravityview_render_active_areas', $template_id, 'field', 'single', $template_areas_single, $presets['fields'] );
$response['single'] = ob_get_clean();
$response = array_map( 'gravityview_strip_whitespace', $response );
gravityview()->log->debug( '[get_preset_fields_config] AJAX Response', array( 'data' => $response ) );
$this->_exit( json_encode( $response ) );
}
/**
* Create the preset form requested before the View save
*
* @return void
*/
function create_preset_form() {
$this->check_ajax_nonce();
if( empty( $_POST['template_id'] ) ) {
gravityview()->log->error( 'Cannot create preset form; the template_id is empty.' );
$this->_exit( false );
}
// get the xml for this specific template_id
$preset_form_xml_path = apply_filters( 'gravityview_template_formxml', '', $_POST['template_id'] );
// import form
$form = $this->import_form( $preset_form_xml_path );
// get the form ID
if( false === $form ) {
// send error to user
gravityview()->log->error( 'Error importing form for template id: {template_id}', array( 'template_id' => (int) $_POST['template_id'] ) );
$this->_exit( false );
}
$this->_exit( '<option value="'.esc_attr( $form['id'] ).'" selected="selected">'.esc_html( $form['title'] ).'</option>' );
}
/**
* Import Gravity Form XML or JSON
*
* @param string $xml_or_json_path Path to form XML or JSON file
* @return int|bool Imported form ID or false
*/
function import_form( $xml_or_json_path = '' ) {
gravityview()->log->debug( '[import_form] Import Preset Form. (File) {path}', array( 'path' => $xml_or_json_path ) );
if( empty( $xml_or_json_path ) || !class_exists('GFExport') || !file_exists( $xml_or_json_path ) ) {
gravityview()->log->error( 'Class GFExport or file not found. file: {path}', array( 'path' => $xml_or_json_path ) );
return false;
}
// import form
$forms = '';
$count = GFExport::import_file( $xml_or_json_path, $forms );
gravityview()->log->debug( '[import_form] Importing form (Result) {count}', array( 'count' => $count ) );
gravityview()->log->debug( '[import_form] Importing form (Form) ', array( 'data' => $forms ) );
if( $count != 1 || empty( $forms[0]['id'] ) ) {
gravityview()->log->error( 'Form Import Failed!' );
return false;
}
// import success - return form id
return $forms[0];
}
/**
* Returns field options - called by ajax when dropping fields into active areas
* AJAX callback
*
* @return void
*/
function get_field_options() {
$this->check_ajax_nonce();
if( empty( $_POST['template'] ) || empty( $_POST['area'] ) || empty( $_POST['field_id'] ) || empty( $_POST['field_type'] ) ) {
gravityview()->log->error( 'Required fields were not set in the $_POST request. ' );
$this->_exit( false );
}
// Fix apostrophes added by JSON response
$_post = array_map( 'stripslashes_deep', $_POST );
// Sanitize
$_post = array_map( 'esc_attr', $_post );
// The GF type of field: `product`, `name`, `creditcard`, `id`, `text`
$input_type = isset($_post['input_type']) ? esc_attr( $_post['input_type'] ) : NULL;
$context = isset($_post['context']) ? esc_attr( $_post['context'] ) : NULL;
$form_id = empty( $_post['form_id'] ) ? null : $_post['form_id'];
$response = GravityView_Render_Settings::render_field_options( $form_id, $_post['field_type'], $_post['template'], $_post['field_id'], $_post['field_label'], $_post['area'], $input_type, '', '', $context );
$response = gravityview_strip_whitespace( $response );
$this->_exit( $response );
}
/**
* Given a View id, calculates the assigned form, and returns the form fields (only the sortable ones )
* AJAX callback
*
*
* @return void
*/
function get_sortable_fields() {
$this->check_ajax_nonce();
$form = '';
// if form id is set, use it, else, get form from preset
if( !empty( $_POST['form_id'] ) ) {
$form = (int) $_POST['form_id'];
}
// get form from preset
elseif( !empty( $_POST['template_id'] ) ) {
$form = GravityView_Ajax::pre_get_form_fields( $_POST['template_id'] );
}
$response = gravityview_get_sortable_fields( $form );
$response = gravityview_strip_whitespace( $response );
$this->_exit( $response );
}
/**
* Get the form fields for a preset (no form created yet)
*
* @param string $template_id Preset template
*
* @return array|false
*/
static function pre_get_form_fields( $template_id = '') {
if( empty( $template_id ) ) {
gravityview()->log->error( 'Template ID not set.' );
return false;
} else {
$form_file = apply_filters( 'gravityview_template_formxml', '', $template_id );
if( !file_exists( $form_file ) ) {
gravityview()->log->error( '[{template_id}] form file does not exist: {path}.', array( 'template_id' => $template_id, 'path' => $form_file ) );
return false;
}
}
// Import logic from https://github.com/gravityforms/gravityforms/blob/11dc114df56e7f5116d7df1adc54000007c13ec5/export.php#L96 & https://github.com/gravityforms/gravityforms/blob/11dc114df56e7f5116d7df1adc54000007c13ec5/export.php#L106
$forms_json = file_get_contents( $form_file );
$forms = json_decode( $forms_json, true );
if ( ! $forms ) {
gravityview()->log->error( 'Could not read the {path} template file.', array( 'path' => $form_file ) );
return false;
}
$form = GFFormsModel::convert_field_objects( $forms[0] );
$form = GFFormsModel::sanitize_settings( $form );
gravityview()->log->debug( '[pre_get_form_fields] Importing Form Fields for preset [{template_id}]. (Form)', array( 'template_id' => $template_id, 'data' => $form ) );
return $form;
}
/**
* Import fields configuration from an exported WordPress View preset
* @param string $file path to file
* @return array Fields config array (unserialized)
*/
function import_fields( $file ) {
if( empty( $file ) || !file_exists( $file ) ) {
gravityview()->log->error( 'Importing Preset Fields. File not found. (File) {path}', array( 'path' => $file ) );
return false;
}
if( !class_exists('WXR_Parser') ) {
include_once GRAVITYVIEW_DIR . 'includes/lib/xml-parsers/parsers.php';
}
$parser = new WXR_Parser();
$presets = $parser->parse( $file );
if(is_wp_error( $presets )) {
gravityview()->log->error( 'Importing Preset Fields failed. Threw WP_Error.', array( 'data' => $presets ) );
return false;
}
if( empty( $presets['posts'][0]['postmeta'] ) && !is_array( $presets['posts'][0]['postmeta'] ) ) {
gravityview()->log->error( 'Importing Preset Fields failed. Meta not found in file. {path}', array( 'path' => $file ) );
return false;
}
gravityview()->log->debug( '[import_fields] postmeta', array( 'data' => $presets['posts'][0]['postmeta'] ) );
$fields = $widgets = array();
foreach( $presets['posts'][0]['postmeta'] as $meta ) {
switch ($meta['key']) {
case '_gravityview_directory_fields':
$fields = maybe_unserialize( $meta['value'] );
break;
case '_gravityview_directory_widgets':
$widgets = maybe_unserialize( $meta['value'] );
break;
}
}
gravityview()->log->debug( '[import_fields] Imported Preset (Fields)', array( 'data' => $fields ) );
gravityview()->log->debug( '[import_fields] Imported Preset (Widgets)', array( 'data' => $widgets ) );
return array(
'fields' => $fields,
'widgets' => $widgets
);
}
}
new GravityView_Ajax;