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509 lines
11 KiB
PHP
509 lines
11 KiB
PHP
<?php
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/**
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* Helper functions to work with forms and form data.
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*
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* @since 1.8.0
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*/
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/**
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* Helper function to trigger displaying a form.
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*
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* @since 1.0.2
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*
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* @param mixed $form_id Form ID.
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* @param bool $title Form title.
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* @param bool $desc Form description.
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*/
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function wpforms_display( $form_id = false, $title = false, $desc = false ) {
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$frontend = wpforms()->get( 'frontend' );
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if ( empty( $frontend ) ) {
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return;
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}
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$frontend->output( $form_id, $title, $desc );
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}
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/**
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* Return URL to form preview page.
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*
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* @since 1.5.1
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*
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* @param int $form_id Form ID.
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* @param bool $new_window New window flag.
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*
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* @return string
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*/
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function wpforms_get_form_preview_url( $form_id, $new_window = false ) {
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$url = add_query_arg(
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[
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'wpforms_form_preview' => absint( $form_id ),
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],
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home_url()
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);
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if ( $new_window ) {
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$url = add_query_arg(
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[
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'new_window' => 1,
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],
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$url
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);
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}
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return $url;
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}
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/**
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* Perform json_decode and unslash.
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*
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* IMPORTANT: This function decodes the result of wpforms_encode() properly only if
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* wp_insert_post() or wp_update_post() were used after the data is encoded.
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* Both wp_insert_post() and wp_update_post() remove excessive slashes added by wpforms_encode().
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*
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* Using wpforms_decode() on wpforms_encode() result directly
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* (without using wp_insert_post() or wp_update_post() first) always returns null or false.
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*
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* @since 1.0.0
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*
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* @param string $data Data to decode.
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*
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* @return array|false|null
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*/
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function wpforms_decode( $data ) {
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if ( ! $data || empty( $data ) ) {
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return false;
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}
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return wp_unslash( json_decode( $data, true ) );
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}
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/**
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* Perform json_encode and wp_slash.
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*
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* IMPORTANT: This function adds excessive slashes to prevent data damage
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* by wp_insert_post() or wp_update_post() that use wp_unslash() on all the incoming data.
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*
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* Decoding the result of this function by wpforms_decode() directly
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* (without using wp_insert_post() or wp_update_post() first) always returns null or false.
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*
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* @since 1.3.1.3
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*
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* @param mixed $data Data to encode.
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*
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* @return string|false
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*/
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function wpforms_encode( $data = false ) {
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if ( empty( $data ) ) {
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return false;
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}
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return wp_slash( wp_json_encode( $data ) );
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}
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/**
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* Decode json-encoded string if it is in json format.
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*
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* @since 1.7.5
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*
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* @param string $string A string.
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* @param bool $associative Decode to the associative array if true. Decode to object if false.
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*
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* @return array|string
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*/
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function wpforms_json_decode( $string, $associative = false ) {
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$string = html_entity_decode( $string );
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if ( ! wpforms_is_json( $string ) ) {
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return $string;
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}
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return json_decode( $string, $associative );
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}
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/**
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* Get the value of a specific WPForms setting.
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*
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* @since 1.0.0
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*
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* @param string $key Setting name.
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* @param mixed $default Default value to return if the setting is not available.
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* @param string $option Option key, defaults to `wpforms_settings` in the `wp_options` table.
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*
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* @return mixed
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*/
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function wpforms_setting( $key, $default = false, $option = 'wpforms_settings' ) {
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$key = wpforms_sanitize_key( $key );
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$options = get_option( $option, false );
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$value = is_array( $options ) && ! empty( $options[ $key ] ) ? wp_unslash( $options[ $key ] ) : $default;
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/**
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* Allows plugin setting to be modified.
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*
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* @since 1.7.8
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*
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* @param mixed $value Setting value.
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* @param string $key Setting key.
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* @param mixed $default Setting default value.
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* @param string $option Settings option name.
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*/
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$value = apply_filters( 'wpforms_setting', $value, $key, $default, $option );
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return $value;
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}
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/**
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* Update plugin settings option and allow it to be filterable.
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*
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* The purpose of this function is to save settings when the "Save Settings" button is clicked.
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* If you are programmatically saving setting in the database in cases not triggered by user,
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* use update_option() instead.
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*
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* @since 1.6.6
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*
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* @param array $settings A plugin settings array that is saved into options table.
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*
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* @return bool
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*/
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function wpforms_update_settings( $settings ) {
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$old_settings = (array) get_option( 'wpforms_settings', [] );
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/**
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* Allows plugin settings to be modified before persisting in the database.
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*
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* @since 1.6.6
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*
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* @param array $settings An array of plugin settings to modify.
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*/
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$settings = (array) apply_filters( 'wpforms_update_settings', $settings );
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$updated = update_option( 'wpforms_settings', $settings );
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/**
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* Fires after the plugin settings were persisted in the database.
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*
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* The `$updated` parameter allows to check whether the update was actually successful.
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*
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* @since 1.6.1
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* @since 1.8.4 The `$old_settings` parameter was added.
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*
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* @param array $settings An array of plugin settings.
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* @param bool $updated Whether an option was updated or not.
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* @param array $old_settings An old array of plugin settings.
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*/
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do_action( 'wpforms_settings_updated', $settings, $updated, $old_settings );
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return $updated;
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}
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/**
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* Check if form provided contains the specified field type.
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*
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* @since 1.0.5
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*
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* @param array|string $type Field type or types.
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* @param array|object $form Form data object.
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* @param bool $multiple Whether to check multiple field types.
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*
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* @return bool
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*/
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function wpforms_has_field_type( $type, $form, $multiple = false ) {
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$form_data = '';
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$field = false;
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$type = (array) $type;
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if ( $multiple ) {
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foreach ( $form as $single_form ) {
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$field = wpforms_has_field_type( $type, $single_form );
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if ( $field ) {
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break;
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}
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}
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return $field;
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}
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if ( is_object( $form ) && ! empty( $form->post_content ) ) {
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$form_data = wpforms_decode( $form->post_content );
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} elseif ( is_array( $form ) ) {
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$form_data = $form;
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}
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if ( empty( $form_data['fields'] ) ) {
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return false;
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}
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foreach ( $form_data['fields'] as $single_field ) {
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if ( ! empty( $single_field['type'] ) && in_array( $single_field['type'], $type, true ) ) {
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$field = true;
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break;
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}
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}
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return $field;
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}
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/**
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* Check if form provided contains a field which a specific setting.
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*
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* @since 1.4.5
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*
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* @param string $setting Setting key.
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* @param object|array $form Form data.
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* @param bool $multiple Whether to check multiple settings.
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*
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* @return bool
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*/
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function wpforms_has_field_setting( $setting, $form, $multiple = false ) {
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$form_data = '';
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$field = false;
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if ( $multiple ) {
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foreach ( $form as $single_form ) {
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$field = wpforms_has_field_setting( $setting, $single_form );
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if ( $field ) {
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break;
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}
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}
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return $field;
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}
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if ( is_object( $form ) && ! empty( $form->post_content ) ) {
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$form_data = wpforms_decode( $form->post_content );
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} elseif ( is_array( $form ) ) {
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$form_data = $form;
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}
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if ( empty( $form_data['fields'] ) ) {
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return false;
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}
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foreach ( $form_data['fields'] as $single_field ) {
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if ( ! empty( $single_field[ $setting ] ) ) {
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$field = true;
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break;
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}
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}
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return $field;
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}
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/**
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* Retrieve actual fields from a form.
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*
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* Non-posting elements such as section divider, page break, and HTML are
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* automatically excluded. Optionally, a whitelist can be provided.
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*
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* @since 1.0.0
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*
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* @param mixed $form Form data.
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* @param array $allowlist A list of allowed fields.
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*
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* @return mixed boolean false or array
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*/
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function wpforms_get_form_fields( $form = false, $allowlist = [] ) {
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// Accept form (post) object or form ID.
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if ( is_object( $form ) ) {
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$form = wpforms_decode( $form->post_content );
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} elseif ( is_numeric( $form ) ) {
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$form = wpforms()->get( 'form' )->get(
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absint( $form ),
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[
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'content_only' => true,
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]
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);
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}
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$allowed_form_fields = [
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'address',
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'checkbox',
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'date-time',
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'email',
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'file-upload',
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'gdpr-checkbox',
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'hidden',
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'likert_scale',
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'name',
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'net_promoter_score',
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'number',
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'number-slider',
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'payment-checkbox',
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'payment-multiple',
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'payment-select',
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'payment-single',
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'payment-total',
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'phone',
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'radio',
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'rating',
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'richtext',
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'select',
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'signature',
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'text',
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'textarea',
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'url',
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];
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/**
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* Filter the list of allowed form fields.
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*
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* @since 1.0.0
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*
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* @param array $allowed_form_fields List of allowed form fields.
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*/
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$allowed_form_fields = apply_filters( 'wpforms_get_form_fields_allowed', $allowed_form_fields );
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if ( ! is_array( $form ) || empty( $form['fields'] ) ) {
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return false;
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}
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$allowlist = ! empty( $allowlist ) ? $allowlist : $allowed_form_fields;
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$form_fields = $form['fields'];
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foreach ( $form_fields as $id => $form_field ) {
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if ( ! in_array( $form_field['type'], $allowlist, true ) ) {
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unset( $form_fields[ $id ] );
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}
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}
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return $form_fields;
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}
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/**
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* Conditional logic form fields supported.
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*
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* @since 1.5.2
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*
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* @return array
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*/
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function wpforms_get_conditional_logic_form_fields_supported() {
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$fields_supported = [
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'checkbox',
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'email',
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'hidden',
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'net_promoter_score',
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'number',
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'number-slider',
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'payment-checkbox',
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'payment-multiple',
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'payment-select',
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'radio',
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'rating',
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'richtext',
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'select',
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'text',
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'textarea',
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'url',
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];
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return apply_filters( 'wpforms_get_conditional_logic_form_fields_supported', $fields_supported );
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}
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/**
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* Get meta key value for a form field.
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*
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* @since 1.3.1
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* @since 1.5.0 More strict parameters. Always return an array.
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*
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* @param string $key Meta key.
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* @param string $value Meta value to check against.
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* @param array $form_data Form data array.
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*
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* @return array Empty array, when no data is found.
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*/
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function wpforms_get_form_fields_by_meta( $key, $value, $form_data ) {
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$found = [];
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if ( empty( $key ) || empty( $value ) || empty( $form_data['fields'] ) ) {
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return $found;
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}
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foreach ( $form_data['fields'] as $id => $field ) {
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if ( ! empty( $field['meta'][ $key ] ) && $value === $field['meta'][ $key ] ) {
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$found[ $id ] = $field;
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}
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}
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return $found;
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}
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/**
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* Retrieve the full config for CAPTCHA.
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*
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* @since 1.6.4
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*
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* @return array
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*/
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function wpforms_get_captcha_settings() {
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$allowed_captcha_list = [ 'hcaptcha', 'recaptcha', 'turnstile' ];
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$captcha_provider = wpforms_setting( 'captcha-provider', 'recaptcha' );
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if ( ! in_array( $captcha_provider, $allowed_captcha_list, true ) ) {
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return [
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'provider' => 'none',
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];
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}
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return [
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'provider' => $captcha_provider,
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'site_key' => sanitize_text_field( wpforms_setting( "{$captcha_provider}-site-key", '' ) ),
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'secret_key' => sanitize_text_field( wpforms_setting( "{$captcha_provider}-secret-key", '' ) ),
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'recaptcha_type' => wpforms_setting( 'recaptcha-type', 'v2' ),
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'theme' => sanitize_text_field( wpforms_setting( "{$captcha_provider}-theme", '' ) ),
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];
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}
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/**
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* Process smart tags.
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*
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* @since 1.7.1
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*
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* @param string $content Content.
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* @param array $form_data Form data.
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* @param array $fields List of fields.
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* @param string $entry_id Entry ID.
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*
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* @return string
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*/
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function wpforms_process_smart_tags( $content, $form_data, $fields = [], $entry_id = '' ) {
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// Skip it if variables have invalid format.
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if ( ! is_string( $content ) || ! is_array( $form_data ) || ! is_array( $fields ) ) {
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return $content;
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}
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/**
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* Process smart tags.
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*
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* @since 1.4.0
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*
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* @param string $content Content.
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* @param array $form_data Form data.
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* @param array $fields List of fields.
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* @param string $entry_id Entry ID.
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*
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* @return string
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*/
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return apply_filters( 'wpforms_process_smart_tags', $content, $form_data, $fields, $entry_id );
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}
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