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<?php
/**
* Ajax actions used in by admin.
*
* @since 1.0.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Save a form.
*
* @since 1.0.0
*/
function wpforms_save_form() {
// Run a security check.
if ( ! check_ajax_referer( 'wpforms-builder', 'nonce', false ) ) {
wp_send_json_error( esc_html__( 'Your session expired. Please reload the builder.', 'wpforms-lite' ) );
}
// Check for permissions.
if ( ! wpforms_current_user_can( 'edit_forms' ) ) {
wp_send_json_error( esc_html__( 'You are not allowed to perform this action.', 'wpforms-lite' ) );
}
// Check for form data.
if ( empty( $_POST['data'] ) ) {
wp_send_json_error( esc_html__( 'Something went wrong while performing this action.', 'wpforms-lite' ) );
}
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
$form_post = json_decode( wp_unslash( $_POST['data'] ) );
$data = [
'fields' => [],
];
if ( $form_post ) {
foreach ( $form_post as $post_input_data ) {
// For input names that are arrays (e.g. `menu-item-db-id[3][4][5]`),
// derive the array path keys via regex and set the value in $_POST.
preg_match( '#([^\[]*)(\[(.+)\])?#', $post_input_data->name, $matches );
$array_bits = [ $matches[1] ];
if ( isset( $matches[3] ) ) {
$array_bits = array_merge( $array_bits, explode( '][', $matches[3] ) );
}
$new_post_data = [];
// Build the new array value from leaf to trunk.
for ( $i = count( $array_bits ) - 1; $i >= 0; $i -- ) {
if ( $i === count( $array_bits ) - 1 ) {
$new_post_data[ $array_bits[ $i ] ] = wp_slash( $post_input_data->value );
} else {
$new_post_data = [
$array_bits[ $i ] => $new_post_data,
];
}
}
$data = array_replace_recursive( $data, $new_post_data );
}
}
// Get form tags.
$form_tags = isset( $data['settings']['form_tags_json'] ) ? json_decode( wp_unslash( $data['settings']['form_tags_json'] ), true ) : [];
// Clear not needed data.
unset( $data['settings']['form_tags_json'] );
// Store tags labels in the form settings.
$data['settings']['form_tags'] = wp_list_pluck( $form_tags, 'label' );
// Update form data.
$form_id = wpforms()->get( 'form' )->update( $data['id'], $data, [ 'context' => 'save_form' ] );
/**
* Fires after updating form data.
*
* @since 1.4.0
*
* @param int $form_id Form ID.
* @param array $data Form data.
*/
do_action( 'wpforms_builder_save_form', $form_id, $data );
if ( ! $form_id ) {
wp_send_json_error( esc_html__( 'Something went wrong while saving the form.', 'wpforms-lite' ) );
}
// Update form tags.
wp_set_post_terms(
$form_id,
wpforms()->get( 'forms_tags_ajax' )->get_processed_tags( $form_tags ),
WPForms_Form_Handler::TAGS_TAXONOMY
);
$response_data = [
'form_name' => esc_html( $data['settings']['form_title'] ),
'form_desc' => $data['settings']['form_desc'],
'redirect' => admin_url( 'admin.php?page=wpforms-overview' ),
];
/**
* Allows filtering ajax response data after form was saved.
*
* @since 1.5.1
*
* @param array $response_data The data to be sent in the response.
* @param int $form_id Form ID.
* @param array $data Form data.
*/
$response_data = apply_filters(
'wpforms_builder_save_form_response_data',
$response_data,
$form_id,
$data
);
wp_send_json_success( $response_data );
}
add_action( 'wp_ajax_wpforms_save_form', 'wpforms_save_form' );
/**
* Create a new form.
*
* @since 1.0.0
*/
function wpforms_new_form() { // phpcs:ignore Generic.Metrics.CyclomaticComplexity.TooHigh
check_ajax_referer( 'wpforms-builder', 'nonce' );
if ( empty( $_POST['title'] ) ) {
wp_send_json_error(
[
'error_type' => 'missing_form_title',
'message' => esc_html__( 'No form name provided.', 'wpforms-lite' ),
]
);
}
$form_title = sanitize_text_field( wp_unslash( $_POST['title'] ) );
$form_template = empty( $_POST['template'] ) ? 'blank' : sanitize_text_field( wp_unslash( $_POST['template'] ) );
if ( ! wpforms()->get( 'builder_templates' )->is_valid_template( $form_template ) ) {
wp_send_json_error(
[
'error_type' => 'invalid_template',
'message' => esc_html__( 'The template you selected is currently not available, but you can try again later. If you continue to have trouble, please reach out to support.', 'wpforms-lite' ),
]
);
}
$title_query = new WP_Query(
[
'post_type' => 'wpforms',
'title' => $form_title,
'posts_per_page' => 1,
'fields' => 'ids',
'update_post_meta_cache' => false,
'update_post_term_cache' => false,
'no_found_rows' => true,
]
);
$title_exists = $title_query->post_count > 0;
$form_id = wpforms()->get( 'form' )->add(
$form_title,
[],
[
'template' => $form_template,
]
);
if ( $title_exists ) {
// Skip creating a revision for this action.
remove_action( 'post_updated', 'wp_save_post_revision' );
wp_update_post(
[
'ID' => $form_id,
'post_title' => $form_title . ' (ID #' . $form_id . ')',
]
);
// Restore the initial revisions state.
add_action( 'post_updated', 'wp_save_post_revision', 10, 1 );
}
if ( ! $form_id ) {
wp_send_json_error(
[
'error_type' => 'cant_create_form',
'message' => esc_html__( 'Error creating form.', 'wpforms-lite' ),
]
);
}
if ( wpforms_current_user_can( 'edit_form_single', $form_id ) ) {
wp_send_json_success(
[
'id' => $form_id,
'redirect' => add_query_arg(
[
'view' => 'fields',
'form_id' => $form_id,
'newform' => '1',
],
admin_url( 'admin.php?page=wpforms-builder' )
),
]
);
}
if ( wpforms_current_user_can( 'view_forms' ) ) {
wp_send_json_success( [ 'redirect' => admin_url( 'admin.php?page=wpforms-overview' ) ] );
}
wp_send_json_success( [ 'redirect' => admin_url() ] );
}
add_action( 'wp_ajax_wpforms_new_form', 'wpforms_new_form' );
/**
* Update form template.
*
* @since 1.0.0
*/
function wpforms_update_form_template() {
// Run a security check.
check_ajax_referer( 'wpforms-builder', 'nonce' );
// Check for form ID.
if ( empty( $_POST['form_id'] ) ) {
wp_send_json_error(
[
'error_type' => 'invalid_form_id',
'message' => esc_html__( 'No form ID provided.', 'wpforms-lite' ),
]
);
}
// Set initial variables.
$form_id = absint( $_POST['form_id'] );
$form_template = empty( $_POST['template'] ) ? 'blank' : sanitize_text_field( wp_unslash( $_POST['template'] ) );
// Check for valid template.
if ( ! wpforms()->get( 'builder_templates' )->is_valid_template( $form_template ) ) {
wp_send_json_error(
[
'error_type' => 'invalid_template',
'message' => esc_html__( 'The template you selected is currently not available, but you can try again later. If you continue to have trouble, please reach out to support.', 'wpforms-lite' ),
]
);
}
// Get current form data.
$data = wpforms()->get( 'form' )->get(
$form_id,
[
'content_only' => true,
]
);
// Get the cached data from the form template JSON.
$template_data = wpforms()->get( 'builder_templates' )->get_template( $form_template );
// If the template title is set, use it. Otherwise, clear the form title.
$template_title = ! empty( $template_data['name'] ) ? $template_data['name'] : '';
// If the form title is set, use it. Otherwise, use the template title.
$form_title = ! empty( $_POST['title'] ) ? sanitize_text_field( wp_unslash( $_POST['title'] ) ) : $template_title;
// If the these template titles are empty, use the form title.
$form_pages_title = $template_title ? $template_title : $form_title;
$form_conversational_title = ! empty( $template_data['data']['settings']['conversational_forms_title'] ) ? $template_data['data']['settings']['conversational_forms_title'] : $form_title;
// If these template slugs are empty, use the form title.
$form_conversational_slug = ! empty( $template_data['data']['settings']['conversational_forms_page_slug'] ) ? $template_data['data']['settings']['conversational_forms_page_slug'] : $form_title;
$form_pages_slug = ! empty( $template_data['data']['settings']['form_pages_page_slug'] ) ? $template_data['data']['settings']['form_pages_page_slug'] : $form_title;
// Loop over notifications.
$notifications = isset( $template_data['data']['settings']['notifications'] ) ? $template_data['data']['settings']['notifications'] : [];
foreach ( $notifications as $key => $notification ) {
// If the subject is empty, set it to an empty string.
$notification_subject = ! empty( $notification['subject'] ) ? sanitize_text_field( $notification['subject'] ) : '';
$data['settings']['notifications'][ $key ]['subject'] = $notification_subject;
}
// Loop over confirmations.
$confirmations = isset( $template_data['data']['settings']['confirmations'] ) ? $template_data['data']['settings']['confirmations'] : [];
foreach ( $confirmations as $key => $confirmation ) {
// If the message is empty, set it to an empty string.
$confirmation_message = ! empty( $confirmation['message'] ) ? wp_kses_post( $confirmation['message'] ) : '';
$data['settings']['confirmations'][ $key ]['message'] = $confirmation_message;
}
// Set updated form titles.
$data['settings']['form_title'] = sanitize_text_field( $form_title );
$data['settings']['form_pages_title'] = sanitize_text_field( $form_pages_title );
$data['settings']['conversational_forms_title'] = sanitize_text_field( $form_conversational_title );
// Set updated form slugs.
$data['settings']['form_pages_page_slug'] = sanitize_title( $form_pages_slug );
$data['settings']['conversational_forms_page_slug'] = sanitize_title( $form_conversational_slug );
// Try to update the form.
$updated = (bool) wpforms()->get( 'form' )->update(
$form_id,
$data,
[
'template' => $form_template,
]
);
// If the form was updated, return the form ID and redirect to the form builder.
if ( $updated ) {
wp_send_json_success(
[
'id' => $form_id,
'redirect' => add_query_arg(
[
'view' => 'fields',
'form_id' => $form_id,
],
admin_url( 'admin.php?page=wpforms-builder' )
),
]
);
}
// Otherwise, return an error.
wp_send_json_error(
[
'error_type' => 'cant_update',
'message' => esc_html__( 'Error updating form template.', 'wpforms-lite' ),
]
);
}
add_action( 'wp_ajax_wpforms_update_form_template', 'wpforms_update_form_template' );
/**
* Form Builder update next field ID.
*
* @since 1.2.9
*/
function wpforms_builder_increase_next_field_id() {
// Run a security check.
check_ajax_referer( 'wpforms-builder', 'nonce' );
// Check for permissions.
if ( ! wpforms_current_user_can( 'edit_forms' ) ) {
wp_send_json_error();
}
// Check for required items.
if ( empty( $_POST['form_id'] ) ) {
wp_send_json_error();
}
$args = [];
// In the case of duplicating the Layout field that contains a bunch of fields,
// we need to set the next `field_id` to the desired value which is passed via POST argument.
if ( ! empty( $_POST['field_id'] ) ) {
$args['field_id'] = absint( $_POST['field_id'] );
}
wpforms()->get( 'form' )->next_field_id( absint( $_POST['form_id'] ), $args );
wp_send_json_success();
}
add_action( 'wp_ajax_wpforms_builder_increase_next_field_id', 'wpforms_builder_increase_next_field_id' );
/**
* Form Builder Dynamic Choices option toggle.
*
* This can be triggered with select/radio/checkbox fields.
*
* @since 1.2.8
*/
function wpforms_builder_dynamic_choices() {
// Run a security check.
check_ajax_referer( 'wpforms-builder', 'nonce' );
// Check for permissions.
if ( ! wpforms_current_user_can( 'edit_forms' ) ) {
wp_send_json_error();
}
// Check for valid/required items.
if ( ! isset( $_POST['field_id'] ) || empty( $_POST['type'] ) || ! in_array( $_POST['type'], [ 'post_type', 'taxonomy' ], true ) ) {
wp_send_json_error();
}
$type = sanitize_key( $_POST['type'] );
$id = absint( $_POST['field_id'] );
// Fetch the option row HTML to be returned to the builder.
$field = new WPForms_Field_Select( false );
$field_args = [
'id' => $id,
'dynamic_choices' => $type,
];
$option_row = $field->field_option( 'dynamic_choices_source', $field_args, [], false );
wp_send_json_success(
[
'markup' => $option_row,
]
);
}
add_action( 'wp_ajax_wpforms_builder_dynamic_choices', 'wpforms_builder_dynamic_choices' );
/**
* Form Builder Dynamic Choices Source option toggle.
*
* This can be triggered with select/radio/checkbox fields.
*
* @since 1.2.8
*/
function wpforms_builder_dynamic_source() {
// Run a security check.
check_ajax_referer( 'wpforms-builder', 'nonce' );
// Check for permissions.
if ( ! wpforms_current_user_can( 'edit_forms' ) ) {
wp_send_json_error();
}
// Check for required items.
if ( ! isset( $_POST['field_id'] ) || empty( $_POST['form_id'] ) || empty( $_POST['type'] ) || empty( $_POST['source'] ) ) {
wp_send_json_error();
}
$type = sanitize_key( $_POST['type'] );
$source = sanitize_key( $_POST['source'] );
$id = absint( $_POST['field_id'] );
$form_id = absint( $_POST['form_id'] );
$items = [];
$total = 0;
$source_name = '';
$type_name = '';
if ( $type === 'post_type' ) {
$type_name = esc_html__( 'post type', 'wpforms-lite' );
$args = [
'post_type' => $source,
'posts_per_page' => 20,
'orderby' => 'title',
'order' => 'ASC',
];
$posts = wpforms_get_hierarchical_object(
apply_filters(
'wpforms_dynamic_choice_post_type_args',
$args,
[
'id' => $id,
],
$form_id
),
true
);
$total = wp_count_posts( $source );
$total = $total->publish;
$pt = get_post_type_object( $source );
$source_name = '';
if ( $pt !== null ) {
$source_name = $pt->labels->name;
}
foreach ( $posts as $post ) {
$items[] = esc_html( wpforms_get_post_title( $post ) );
}
} elseif ( $type === 'taxonomy' ) {
$type_name = esc_html__( 'taxonomy', 'wpforms-lite' );
$args = [
'taxonomy' => $source,
'hide_empty' => false,
'number' => 20,
];
$terms = wpforms_get_hierarchical_object(
apply_filters(
'wpforms_dynamic_choice_taxonomy_args',
$args,
[
'id' => $id,
],
$form_id
),
true
);
$total = wp_count_terms( $source );
$tax = get_taxonomy( $source );
$source_name = $tax->labels->name;
foreach ( $terms as $term ) {
$items[] = esc_html( wpforms_get_term_name( $term ) );
}
}
if ( empty( $items ) ) {
$items = [];
}
wp_send_json_success(
[
'items' => $items,
'source' => $source,
'source_name' => $source_name,
'total' => $total,
'type' => $type,
'type_name' => $type_name,
]
);
}
add_action( 'wp_ajax_wpforms_builder_dynamic_source', 'wpforms_builder_dynamic_source' );
/**
* Perform test connection to verify that the current web host can successfully
* make outbound SSL connections.
*
* @since 1.4.5
*/
function wpforms_verify_ssl() {
// Run a security check.
check_ajax_referer( 'wpforms-admin', 'nonce' );
// Check for permissions.
if ( ! wpforms_current_user_can() ) {
wp_send_json_error(
[
'msg' => esc_html__( 'You do not have permission to perform this operation.', 'wpforms-lite' ),
]
);
}
$response = wp_remote_post( 'https://wpforms.com/connection-test.php' );
if ( 200 === wp_remote_retrieve_response_code( $response ) ) {
wp_send_json_success(
[
'msg' => esc_html__( 'Success! Your server can make SSL connections.', 'wpforms-lite' ),
]
);
}
wp_send_json_error(
[
'msg' => esc_html__( 'There was an error and the connection failed. Please contact your web host with the technical details below.', 'wpforms-lite' ),
'debug' => '<pre>' . print_r( map_deep( $response, 'wp_strip_all_tags' ), true ) . '</pre>',
]
);
}
add_action( 'wp_ajax_wpforms_verify_ssl', 'wpforms_verify_ssl' );
/**
* Deactivate addon.
*
* @since 1.0.0
* @since 1.6.2.3 Updated the permissions checking.
*/
function wpforms_deactivate_addon() {
// Run a security check.
check_ajax_referer( 'wpforms-admin', 'nonce' );
// Check for permissions.
if ( ! current_user_can( 'deactivate_plugins' ) ) {
wp_send_json_error( esc_html__( 'Plugin deactivation is disabled for you on this site.', 'wpforms-lite' ) );
}
$type = empty( $_POST['type'] ) ? 'addon' : sanitize_key( $_POST['type'] );
if ( isset( $_POST['plugin'] ) ) {
$plugin = sanitize_text_field( wp_unslash( $_POST['plugin'] ) );
deactivate_plugins( $plugin );
do_action( 'wpforms_plugin_deactivated', $plugin );
if ( $type === 'plugin' ) {
wp_send_json_success( esc_html__( 'Plugin deactivated.', 'wpforms-lite' ) );
} else {
wp_send_json_success( esc_html__( 'Addon deactivated.', 'wpforms-lite' ) );
}
}
wp_send_json_error( esc_html__( 'Could not deactivate the addon. Please deactivate from the Plugins page.', 'wpforms-lite' ) );
}
add_action( 'wp_ajax_wpforms_deactivate_addon', 'wpforms_deactivate_addon' );
/**
* Activate addon.
*
* @since 1.0.0
* @since 1.6.2.3 Updated the permissions checking.
*/
function wpforms_activate_addon() {
// Run a security check.
check_ajax_referer( 'wpforms-admin', 'nonce' );
// Check for permissions.
if ( ! current_user_can( 'activate_plugins' ) ) {
wp_send_json_error( esc_html__( 'Plugin activation is disabled for you on this site.', 'wpforms-lite' ) );
}
$success_messages = [
'plugin' => __( 'Plugin activated.', 'wpforms-lite' ),
'addon' => __( 'Addon activated.', 'wpforms-lite' ),
];
$error_messages = [
'plugin' => __( 'Could not activate the plugin. Please activate it on the Plugins page.', 'wpforms-lite' ),
'addon' => __( 'Could not activate the addon. Please activate it on the Plugins page.', 'wpforms-lite' ),
];
$type = ! empty( $_POST['type'] ) ? sanitize_key( $_POST['type'] ) : 'addon';
$success_message = $success_messages[ $type ];
$error_message = $error_messages[ $type ];
if ( isset( $_POST['plugin'] ) ) {
$plugin = sanitize_text_field( wp_unslash( $_POST['plugin'] ) );
$activate = wpforms_activate_plugin( $plugin );
/**
* Fire after plugin activating via the WPForms installer.
*
* @since 1.6.3.1
*
* @param string $plugin Path to the plugin file relative to the plugins' directory.
*/
do_action( 'wpforms_plugin_activated', $plugin );
if ( $activate === null ) {
wp_send_json_success( wp_kses_post( $success_message ) );
}
$error_message = $activate->get_error_message();
}
wp_send_json_error( wp_kses_post( $error_message ) );
}
add_action( 'wp_ajax_wpforms_activate_addon', 'wpforms_activate_addon' );
/**
* Install addon.
*
* @since 1.0.0
* @since 1.6.2.3 Updated the permissions checking.
*/
function wpforms_install_addon() {
// Run a security check.
check_ajax_referer( 'wpforms-admin', 'nonce' );
$generic_error = esc_html__( 'There was an error while performing your request.', 'wpforms-lite' );
$type = ! empty( $_POST['type'] ) ? sanitize_key( $_POST['type'] ) : 'addon';
// Check if new installations are allowed.
if ( ! wpforms_can_install( $type ) ) {
wp_send_json_error( $generic_error );
}
$error = $type === 'plugin'
? esc_html__( 'Could not install the plugin. Please download and install it manually.', 'wpforms-lite' )
: sprintf(
wp_kses( /* translators: %1$s - addon download URL, %2$s - link to manual installation guide. */
__( 'Could not install the addon. Please <a href="%1$s" target="_blank" rel="noopener noreferrer">download it from wpforms.com</a> and <a href="%2$s" target="_blank" rel="noopener noreferrer">install it manually</a>.', 'wpforms-lite' ),
[
'a' => [
'href' => true,
'target' => true,
'rel' => true,
],
]
),
'https://wpforms.com/account/licenses/',
'https://wpforms.com/docs/how-to-manually-install-addons-in-wpforms/'
);
$plugin_url = ! empty( $_POST['plugin'] ) ? esc_url_raw( wp_unslash( $_POST['plugin'] ) ) : '';
if ( empty( $plugin_url ) ) {
wp_send_json_error( $error );
}
$args_str = ! empty( $_POST['args'] ) ? sanitize_text_field( wp_unslash( $_POST['args'] ) ) : '';
$args = json_decode( $args_str, true ) ?? [];
// Set the current screen to avoid undefined notices.
set_current_screen( 'wpforms_page_wpforms-settings' );
// Prepare variables.
$url = esc_url_raw(
add_query_arg(
[
'page' => 'wpforms-addons',
],
admin_url( 'admin.php' )
)
);
ob_start();
$creds = request_filesystem_credentials( $url, '', false, false, null );
// Hide the filesystem credentials form.
ob_end_clean();
// Check for file system permissions.
if ( $creds === false ) {
wp_send_json_error( $error );
}
if ( ! WP_Filesystem( $creds ) ) {
wp_send_json_error( $error );
}
/*
* We do not need any extra credentials if we have gotten this far, so let's install the plugin.
*/
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/class-install-skin.php';
// Do not allow WordPress to search/download translations, as this will break JS output.
remove_action( 'upgrader_process_complete', [ 'Language_Pack_Upgrader', 'async_upgrade' ], 20 );
// Create the plugin upgrader with our custom skin.
$installer = new WPForms\Helpers\PluginSilentUpgrader( new WPForms_Install_Skin() );
// Error check.
if ( ! method_exists( $installer, 'install' ) ) {
wp_send_json_error( $error );
}
$installer->install( $plugin_url, $args );
// Flush the cache and return the newly installed plugin basename.
wp_cache_flush();
$plugin_basename = $installer->plugin_info();
if ( empty( $plugin_basename ) ) {
wp_send_json_error( $error );
}
$result = [
'msg' => $generic_error,
'is_activated' => false,
'basename' => $plugin_basename,
];
// Check for permissions.
if ( ! current_user_can( 'activate_plugins' ) ) {
$result['msg'] = $type === 'plugin' ? esc_html__( 'Plugin installed.', 'wpforms-lite' ) : esc_html__( 'Addon installed.', 'wpforms-lite' );
wp_send_json_success( $result );
}
// Activate the plugin silently.
$activated = activate_plugin( $plugin_basename );
if ( ! is_wp_error( $activated ) ) {
/**
* Fire after plugin activating via the WPForms installer.
*
* @since 1.7.0
*
* @param string $plugin_basename Path to the plugin file relative to the plugins directory.
*/
do_action( 'wpforms_plugin_activated', $plugin_basename );
$result['is_activated'] = true;
$result['msg'] = $type === 'plugin' ? esc_html__( 'Plugin installed & activated.', 'wpforms-lite' ) : esc_html__( 'Addon installed & activated.', 'wpforms-lite' );
wp_send_json_success( $result );
}
// Fallback error just in case.
wp_send_json_error( $result );
}
add_action( 'wp_ajax_wpforms_install_addon', 'wpforms_install_addon' );
/**
* Search pages for dropdown.
*
* @since 1.7.9
*/
function wpforms_ajax_search_pages_for_dropdown() {
// Run a security check.
if ( ! check_ajax_referer( 'wpforms-builder', 'nonce', false ) ) {
wp_send_json_error( esc_html__( 'Your session expired. Please reload the builder.', 'wpforms-lite' ) );
}
if ( ! array_key_exists( 'search', $_GET ) ) {
wp_send_json_error( esc_html__( 'Incorrect usage of this operation.', 'wpforms-lite' ) );
}
$result_pages = wpforms_search_pages_for_dropdown(
sanitize_text_field( wp_unslash( $_GET['search'] ) )
);
if ( empty( $result_pages ) ) {
wp_send_json_success( [] );
}
wp_send_json_success( $result_pages );
}
add_action( 'wp_ajax_wpforms_ajax_search_pages_for_dropdown', 'wpforms_ajax_search_pages_for_dropdown' );