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<?php
namespace WPForms\Integrations\Stripe;
/**
* Stripe related helper methods.
*
* @since 1.8.2
*/
class Helpers {
/**
* Stripe connection modes.
*
* @since 1.8.2
*/
const CONNECTION_MODES = [ 'live', 'test' ];
/**
* Get field slug.
*
* @since 1.8.2
*
* @return string
*/
public static function get_field_slug() {
return self::is_pro() ? wpforms_stripe()->api->get_config( 'field_slug' ) : 'stripe-credit-card';
}
/**
* Determine whether the Stripe field is in the form.
*
* @since 1.8.2
*
* @param array $forms Form data (e.g. forms on a current page).
* @param bool $multiple Must be 'true' if $forms contain multiple forms.
*
* @return bool
*/
public static function has_stripe_field( $forms, $multiple = false ) {
$slug = self::get_field_slug();
if ( empty( $slug ) ) {
return false;
}
return wpforms_has_field_type( $slug, $forms, $multiple ) !== false;
}
/**
* Determine whether the Stripe is enabled in forms used on the page.
*
* @since 1.8.2
*
* @param array $forms Form data (e.g. forms on a current page).
*
* @return bool
*/
public static function has_stripe_enabled( $forms ) {
foreach ( $forms as $form ) {
if ( self::is_payments_enabled( $form ) ) {
return true;
}
}
return false;
}
/**
* Determine whether Stripe keys are configured on the Payments settings page.
*
* @since 1.8.2
*
* @param string $mode Stripe mode to check the keys for.
*
* @return bool
*/
public static function has_stripe_keys( $mode = '' ) {
$mode = self::validate_stripe_mode( $mode );
return wpforms_setting( "stripe-{$mode}-secret-key" ) && wpforms_setting( "stripe-{$mode}-publishable-key" );
}
/**
* Validate Stripe mode name to ensure it's either 'live' or 'test'.
* If given mode is invalid, fetches current Stripe mode.
*
* @since 1.8.2
*
* @param string $mode Stripe mode to validate.
*
* @return string
*/
public static function validate_stripe_mode( $mode ) {
if ( empty( $mode ) || ! in_array( $mode, self::CONNECTION_MODES, true ) ) {
return self::get_stripe_mode();
}
return $mode;
}
/**
* Get Stripe mode from the WPForms settings.
*
* @since 1.8.2
*
* @return string
*/
public static function get_stripe_mode() {
return wpforms_setting( 'stripe-test-mode' ) ? 'test' : 'live';
}
/**
* Get Stripe key from the WPForms settings.
*
* @since 1.8.2
*
* @param string $type Key type (e.g. 'publishable' or 'secret').
* @param string $mode Stripe mode (e.g. 'live' or 'test').
*
* @return string
*/
public static function get_stripe_key( $type, $mode = '' ) {
$mode = self::validate_stripe_mode( $mode );
if ( ! in_array( $type, [ 'publishable', 'secret' ], true ) ) {
return '';
}
$key = wpforms_setting( "stripe-{$mode}-{$type}-key" );
if ( ! empty( $key ) && is_string( $key ) ) {
return sanitize_text_field( $key );
}
return '';
}
/**
* Set Stripe key from the WPForms settings.
*
* @since 1.8.2
*
* @param string $value Key string to set.
* @param string $type Key type (e.g. 'publishable' or 'secret').
* @param string $mode Stripe mode (e.g. 'live' or 'test').
*
* @return bool
*/
public static function set_stripe_key( $value, $type, $mode = '' ) {
$mode = self::validate_stripe_mode( $mode );
if ( ! in_array( $type, [ 'publishable', 'secret' ], true ) ) {
return false;
}
$key = "stripe-{$mode}-{$type}-key";
$settings = (array) get_option( 'wpforms_settings', [] );
$settings[ $key ] = sanitize_text_field( $value );
return wpforms_update_settings( $settings );
}
/**
* Determine whether a license key is active.
*
* @since 1.8.2
*
* @return bool
*/
public static function is_license_active() {
$license = (array) get_option( 'wpforms_license', [] );
return ! empty( wpforms_get_license_key() ) &&
empty( $license['is_expired'] ) &&
empty( $license['is_disabled'] ) &&
empty( $license['is_invalid'] );
}
/**
* Determine whether a license type is allowed.
*
* @since 1.8.2
*
* @return bool
*/
public static function is_allowed_license_type() {
return in_array( wpforms_get_license_type(), [ 'pro', 'elite', 'agency', 'ultimate' ], true );
}
/**
* Determine whether a license is ok.
*
* @since 1.8.2
*
* @return bool
*/
public static function is_license_ok() {
return self::is_license_active() && self::is_allowed_license_type();
}
/**
* Determine whether the addon is activated.
*
* @since 1.8.2
*
* @return bool
*/
public static function is_addon_active() {
return wpforms_is_addon_initialized( 'stripe' );
}
/**
* Determine whether the addon is activated and appropriate license is set.
*
* @since 1.8.2
*
* @return bool
*/
public static function is_pro() {
return self::is_addon_active() && self::is_allowed_license_type();
}
/**
* Get authorization options used for every Stripe transaction as recommended in Stripe official docs.
*
* @link https://stripe.com/docs/connect/authentication#api-keys
*
* @since 1.8.2
*
* @return array
*/
public static function get_auth_opts() {
return [ 'api_key' => self::get_stripe_key( 'secret' ) ];
}
/**
* Determine whether the Payment element mode is enabled.
*
* @since 1.8.2
*
* @return bool
*/
public static function is_payment_element_enabled() {
return wpforms_setting( 'stripe-card-mode' ) === 'payment';
}
/**
* Determine whether the application fee is supported.
*
* @since 1.8.2
*
* @return bool
*/
public static function is_application_fee_supported() {
return ! in_array( self::get_account_country(), [ 'br', 'in', 'mx' ], true );
}
/**
* Get Stripe webhook endpoint data.
*
* @since 1.8.4
*
* @return array
*/
public static function get_webhook_endpoint_data() {
return [
'namespace' => 'wpforms',
'route' => 'stripe/webhooks',
'fallback' => 'wpforms_stripe_webhooks',
];
}
/**
* Get webhook URL for REST API.
*
* @since 1.8.4
*
* @return string
*/
public static function get_webhook_url_for_rest() {
$path = implode(
'/',
[
self::get_webhook_endpoint_data()['namespace'],
self::get_webhook_endpoint_data()['route'],
]
);
return rest_url( $path );
}
/**
* Get webhook URL for cURL fallback.
*
* @since 1.8.4
*
* @return string
*/
public static function get_webhook_url_for_curl() {
return add_query_arg( self::get_webhook_endpoint_data()['fallback'], '1', site_url() );
}
/**
* Determine if webhook ID and secret is set in WPForms settings.
*
* @since 1.8.4
*
* @return bool
*/
public static function is_webhook_configured() {
$mode = self::get_stripe_mode();
return wpforms_setting( 'stripe-webhooks-id-' . $mode ) && wpforms_setting( 'stripe-webhooks-secret-' . $mode );
}
/**
* Determine if webhooks are enabled in WPForms settings.
*
* @since 1.8.4
*
* @return bool
*/
public static function is_webhook_enabled() {
return wpforms_setting( 'stripe-webhooks-enabled' );
}
/**
* Determine if REST API is set in WPForms settings.
*
* @since 1.8.4
*
* @return bool
*/
public static function is_rest_api_set() {
return wpforms_setting( 'stripe-webhooks-communication', 'rest' ) === 'rest';
}
/**
* Get decimals amount.
*
* @since 1.8.4
*
* @param string $currency Currency.
*
* @return int
*/
public static function get_decimals_amount( $currency = '' ) {
if ( ! $currency ) {
$currency = wpforms_get_currency();
}
return (int) str_pad( 1, wpforms_get_currency_decimals( strtolower( $currency ) ) + 1, 0, STR_PAD_RIGHT );
}
/**
* Get Stripe webhook endpoint URL.
*
* If the constant WPFORMS_STRIPE_WHURL is defined, it will be used as the webhook URL.
*
* @since 1.8.4
*
* @return string
*/
public static function get_webhook_url() {
if ( defined( 'WPFORMS_STRIPE_WHURL' ) ) {
return WPFORMS_STRIPE_WHURL;
}
if ( self::is_rest_api_set() ) {
return self::get_webhook_url_for_rest();
}
return self::get_webhook_url_for_curl();
}
/**
* Is Stripe payment enabled for the form.
*
* @since 1.8.4
*
* @param array $form_data Form data.
*
* @return bool
*/
public static function is_payments_enabled( $form_data ) {
return self::is_modern_settings_enabled( $form_data ) || ! empty( $form_data['payments']['stripe']['enable'] );
}
/**
* Is Stripe modern payment enabled for the form.
*
* @since 1.8.4
*
* @param array $form_data Form data.
*
* @return bool
*/
public static function is_modern_settings_enabled( $form_data ) {
return ! empty( $form_data['payments']['stripe']['enable_one_time'] ) || ! empty( $form_data['payments']['stripe']['enable_recurring'] );
}
/**
* Detect if form supports multiple subscription plans.
*
* @since 1.8.4
*
* @param array $form_data Form data.
*
* @return bool
*/
public static function is_form_supports_multiple_recurring_plans( $form_data ) {
return ! isset( $form_data['payments']['stripe'] ) || empty( $form_data['payments']['stripe']['recurring']['enable'] );
}
/**
* Determine if legacy payment settings should be displayed.
*
* @since 1.8.4
*
* @param array $form_data Form data.
*
* @return bool
*/
public static function is_legacy_payment_settings( $form_data ) {
$has_legacy_settings = ! self::is_form_supports_multiple_recurring_plans( $form_data );
// Return early if form has legacy payment settings.
if ( $has_legacy_settings ) {
return true;
}
$addon_compat = ( new StripeAddonCompatibility() )->init();
// Return early if Stripe Pro addon doesn't support modern settings (multiple plans).
if ( $addon_compat && ! $addon_compat->is_supported_modern_settings() ) {
return true;
}
return false;
}
/**
* Determine whether the Link is supported.
*
* @link https://docs.stripe.com/payments/payment-methods/integration-options#payment-method-availability
*
* @since 1.8.8
*
* @return bool
*/
public static function is_link_supported(): bool {
return ! in_array( self::get_account_country(), [ 'br', 'in', 'id', 'th' ], true );
}
/**
* Get account country.
*
* @since 1.8.8
*
* @return string
*/
private static function get_account_country(): string {
$mode = self::get_stripe_mode();
return get_option( "wpforms_stripe_{$mode}_account_country", '' );
}
}