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<?php |
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|
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namespace Better_Payment\Lite\Classes; |
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|
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use WP_Error; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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/** |
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* Which payment requests need Better Payment Pro, and who handles them. |
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* |
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* Pro has no payment handlers: its Payment Form layouts 4, 5 and 6 and its recurring, |
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* split-payment and mixed payment types post to Lite's handlers. Those handlers are |
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* `nopriv` and their nonce is printed on every public form, so a Pro form saved on a site |
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* without Pro — or a forged request naming one — would otherwise run Pro's payment types. |
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* This class is where that stops, for all nine handlers at once: |
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* |
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* - Without Pro, PaymentRequestGuard refuses a Pro form's payment, or a request posting a |
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* field only a Pro form renders (`bp_pro_required`), before any gateway is contacted or any |
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* transaction row is stored. A free layout is a one-time form on every install, whatever |
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* payment type its saved settings still hold. |
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* - With Pro, each step is asked of Pro through a hook. A step that decides what is |
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* charged or how the checkout is built is refused (`bp_pro_payment_unhandled`) when no |
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* callback answers it; every other step keeps what Lite built. Better Payment Pro 1.4.4+ |
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* answers them (`Frontend\PaymentTypes`, slug FEATURE); Lite ships no copy. |
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* |
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* Hooks (each fires only while `better_payment/pro_enabled` is true): |
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* - `better_payment/payment_guard/resolve_pro_payment` (null, $base, $settings, $fields, $context, $guard) |
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* → resolution array | WP_Error. Nothing returned refuses the payment. |
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* - `better_payment/stripe_checkout/pro_request` (null, $checkout, $context) |
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* → [ 'request' => array, 'form_fields' => array ] | WP_Error. Nothing returned refuses it. |
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* - `better_payment/payment_form/pro_form_fields` ([], $settings) → the fields repeater a Pro form renders. |
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* - `better_payment/payment_form/pro_transaction_fields` ($form_fields_info, $settings) → the stored fields. |
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* - `better_payment/stripe_payment/pro_verification_args` ($args, $form_fields_info) → `expand` + recurring/split flags. |
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* - `better_payment/stripe_payment/pro_verified_session` ($details, $session, $args) → stored + returned details. |
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* - `better_payment/success_page/pro_rows` ([], $position, $settings, $payment, $context) → thank-you page rows. |
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* - `better_payment/email/pro_form_field_rows` ($rows, $context, $form_fields_info) → e-mail field rows. |
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* |
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* This class is permanent: the entitlement check and the hooks are Lite's side of the |
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* contract. Lite's transitional copy of the payment types was deleted when |
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* ProCompatibility::MIN_PRO_VERSION reached 1.4.4. |
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* |
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* @since 2.4.0 |
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*/ |
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final class PaymentEntitlement { |
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|
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/** |
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* Feature slug Pro declares on `better_payment/pro_provides` once it ships the payment types itself. |
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* |
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* One slug for every step: they share the markers written at checkout (`mode`, |
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* `is_payment_split_payment`, `is_payment_mixed`) and read back on return, so a Pro that |
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* built the checkout but not the verification would leave split payments uncapped. |
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*/ |
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const FEATURE = 'pro_payment_types'; |
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|
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/** |
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* Payment Form layouts only Pro renders. |
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*/ |
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const PRO_LAYOUTS = [ 'layout-4-pro', 'layout-5-pro', 'layout-6-pro' ]; |
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|
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/** |
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* Request fields only a Pro payment form renders: a subscription mode, a plan, an |
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* installment, and a mixed form's one-time/recurring choice and period. |
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*/ |
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const PRO_REQUEST_FIELDS = [ |
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'better_payment_recurring_mode', |
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'better_payment_recurring_price_id', |
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'split_payment_installment', |
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'better_payment_mixed_selected_type', |
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'better_payment_mixed_interval', |
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'better_payment_mixed_interval_type', |
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'better_payment_mixed_interval_day', |
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'better_payment_mixed_interval_week', |
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'better_payment_mixed_interval_month', |
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'better_payment_mixed_interval_year', |
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]; |
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|
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/** |
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* Whether a form is a Pro payment form: one of Pro's layouts (layout 6 is the product basket). |
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* |
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* Only the layout counts. The recurring, split-payment and mixed payment types exist only |
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* on Pro's layouts 4 and 5, while a free layout (1-3, or a block) can still carry a saved |
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* payment type from an earlier layout choice or from when Pro was active — Elementor keeps |
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* the saved value of a control nobody registers. That leftover means nothing: a free layout |
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* renders a one-time form and is charged as one. |
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* |
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* @param array $settings Stored form settings. |
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* @return bool |
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*/ |
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public static function is_pro_form( array $settings ): bool { |
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return in_array( PaymentRequestGuard::setting( $settings, 'better_payment_form_layout', '' ), self::PRO_LAYOUTS, true ); |
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} |
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|
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/** |
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* Whether a request posts a field only a Pro payment form renders. |
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* |
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* No free layout, block or Lite script posts these. On a free layout such a request is |
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* forged; on a free install it asks for a Pro payment. |
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* |
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* @param array $fields Submitted fields, unslashed. |
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* @return bool |
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*/ |
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public static function posts_pro_fields( array $fields ): bool { |
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foreach ( self::PRO_REQUEST_FIELDS as $key ) { |
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if ( '' !== PaymentRequestGuard::field( $fields, $key ) ) { |
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return true; |
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} |
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} |
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|
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return false; |
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} |
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|
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/** |
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* The refusal of a Pro form's payment on a site without Pro. |
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* |
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* @return WP_Error |
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*/ |
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public static function refusal(): WP_Error { |
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return new WP_Error( 'bp_pro_required', __( 'This payment form requires Better Payment Pro, which is not active on this site.', 'better-payment' ) ); |
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} |
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|
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/** |
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* The refusal of a Pro form's payment nothing handled. |
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* |
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* @return WP_Error |
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*/ |
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public static function unhandled(): WP_Error { |
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return new WP_Error( 'bp_pro_payment_unhandled', __( 'This payment form cannot take payments right now. Please try again later.', 'better-payment' ) ); |
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} |
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|
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/** |
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* What a Pro form's request may charge. Called by PaymentRequestGuard::resolve_form_payment(). |
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* |
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* The resolver answers the amount, quantity, price ids and coupon. The verified campaign |
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* and the currency are Lite's and are kept whatever it returns. |
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* |
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* @param PaymentRequestGuard $guard The guard, whose checks the resolver uses. |
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* @param array $base The guard's resolution so far (all keys, nothing charged). |
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* @param array $settings Stored form settings. |
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* @param array $fields Submitted fields, unslashed. |
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* @param array $context `page_id`, `gateway`, `campaign` (verified campaign or null). |
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* @return array|WP_Error |
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*/ |
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public static function resolve_form_payment( PaymentRequestGuard $guard, array $base, array $settings, array $fields, array $context ) { |
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if ( ! ProCompatibility::pro_enabled() ) { |
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return self::refusal(); |
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} |
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|
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$resolution = self::answer( 'better_payment/payment_guard/resolve_pro_payment', [ null, $base, $settings, $fields, $context, $guard ] ); |
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|
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if ( is_wp_error( $resolution ) ) { |
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return $resolution; |
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} |
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|
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if ( ! is_array( $resolution ) || ! isset( $resolution['amount'] ) || ! is_numeric( $resolution['amount'] ) |
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|| ! is_finite( (float) $resolution['amount'] ) || (float) $resolution['amount'] < 0 ) { |
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return self::unhandled(); |
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} |
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|
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$resolved = array_merge( $base, $resolution ); |
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|
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$resolved['campaign_id'] = $base['campaign_id']; |
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$resolved['currency'] = $base['currency']; |
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|
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return $resolved; |
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} |
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|
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/** |
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* The Stripe Checkout Session request for a Pro form. Called by the widget's Stripe handler. |
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* |
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* @param array $checkout `request` (the Checkout Session body) and `form_fields` (the transaction's stored fields). |
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* @param array $context `settings`, `fields` (unslashed), `guarded` (the guard's resolution), |
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* `order_id`, `widget_id`, `header_info` (Stripe request headers). |
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* @return array|WP_Error `request` and `form_fields`. |
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*/ |
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public static function stripe_checkout( array $checkout, array $context ) { |
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if ( ! ProCompatibility::pro_enabled() ) { |
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return self::refusal(); |
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} |
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|
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$result = self::answer( 'better_payment/stripe_checkout/pro_request', [ null, $checkout, $context ] ); |
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|
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if ( is_wp_error( $result ) ) { |
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return $result; |
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} |
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|
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if ( ! is_array( $result ) || ! isset( $result['request'], $result['form_fields'] ) |
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|| ! is_array( $result['request'] ) || ! is_array( $result['form_fields'] ) ) { |
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return self::unhandled(); |
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} |
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|
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return [ |
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'request' => $result['request'], |
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'form_fields' => $result['form_fields'], |
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]; |
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} |
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|
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/** |
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* The fields repeater whose submitted values a transaction records. |
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* |
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* A free form's is `better_payment_form_fields`. A Pro form records none on a site |
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* without Pro (its payment was refused), and whatever Pro answers otherwise. |
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* |
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* @param array $settings Stored form settings. |
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* @return array |
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*/ |
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public static function form_fields( array $settings ): array { |
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if ( ! self::is_pro_form( $settings ) ) { |
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return PaymentRequestGuard::repeater( $settings, 'better_payment_form_fields' ); |
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} |
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|
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if ( ! ProCompatibility::pro_enabled() ) { |
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return []; |
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} |
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|
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$form_fields = self::answer( 'better_payment/payment_form/pro_form_fields', [ [], $settings ] ); |
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|
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return is_array( $form_fields ) ? $form_fields : []; |
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} |
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|
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/** |
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* The fields a transaction stores, with any Pro adds (layout 6's platform flags). |
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* |
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* @param array $form_fields_info Fields the handler built. |
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* @param array $settings Stored form settings. |
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* @return array |
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*/ |
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public static function transaction_fields( array $form_fields_info, array $settings ): array { |
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if ( ! ProCompatibility::pro_enabled() ) { |
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return $form_fields_info; |
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} |
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|
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$result = self::answer( 'better_payment/payment_form/pro_transaction_fields', [ $form_fields_info, $settings ] ); |
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|
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return is_array( $result ) ? $result : $form_fields_info; |
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} |
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|
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/** |
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* How a Stripe Checkout Session is retrieved on return, and whether it is a subscription. |
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* |
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* @param array $args `expand` (string[]), `is_payment_recurring`, `is_payment_split_payment`. |
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* @param array $form_fields_info The transaction's stored fields. |
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* @return array |
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*/ |
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public static function stripe_verification_args( array $args, array $form_fields_info ): array { |
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if ( ! ProCompatibility::pro_enabled() ) { |
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return $args; |
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} |
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|
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$result = self::answer( 'better_payment/stripe_payment/pro_verification_args', [ $args, $form_fields_info ] ); |
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|
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if ( ! is_array( $result ) || ! isset( $result['expand'] ) || ! is_array( $result['expand'] ) ) { |
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return $args; |
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} |
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|
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$result['expand'] = array_values( array_filter( $result['expand'], 'is_string' ) ); |
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$result['is_payment_recurring'] = ! empty( $result['is_payment_recurring'] ); |
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$result['is_payment_split_payment'] = ! empty( $result['is_payment_split_payment'] ); |
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|
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return $result; |
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} |
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|
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/** |
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* What a verified Stripe Checkout Session stores and returns beyond a one-time payment. |
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* |
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* @param array $details `form_fields_info`, `transaction_id`, `email`, `frontend_data` (extra keys for the thank-you page). |
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* @param object $session The retrieved Checkout Session. |
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* @param array $args stripe_verification_args(). |
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* @return array |
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*/ |
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public static function stripe_verified_session( array $details, $session, array $args ): array { |
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if ( ! ProCompatibility::pro_enabled() ) { |
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return $details; |
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} |
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|
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$result = self::answer( 'better_payment/stripe_payment/pro_verified_session', [ $details, $session, $args ] ); |
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|
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if ( ! is_array( $result ) || ! array_key_exists( 'form_fields_info', $result ) |
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|| ! isset( $result['frontend_data'] ) || ! is_array( $result['frontend_data'] ) ) { |
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return $details; |
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} |
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|
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return [ |
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'form_fields_info' => $result['form_fields_info'], |
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'transaction_id' => isset( $result['transaction_id'] ) && is_scalar( $result['transaction_id'] ) ? (string) $result['transaction_id'] : $details['transaction_id'], |
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'email' => isset( $result['email'] ) && is_scalar( $result['email'] ) ? (string) $result['email'] : $details['email'], |
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'frontend_data' => $result['frontend_data'], |
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]; |
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} |
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|
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/** |
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* Thank-you page rows only Pro's payment types show — asked only for a Pro form, so a free |
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* layout's leftover payment type never labels its thank-you page. |
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* |
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* @param string $position 'after_payment_method' | 'after_merchant_details'. |
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* @param mixed $settings Form settings. |
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* @param mixed $payment The verified payment (a `*_payment_success()` result). |
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* @param array $context `currency_symbol` (escaped). |
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* @return array[] `label` and `value`, both HTML. |
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*/ |
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public static function success_rows( $position, $settings, $payment, array $context ): array { |
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if ( ! ProCompatibility::pro_enabled() || ! is_array( $settings ) || ! self::is_pro_form( $settings ) ) { |
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return []; |
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} |
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|
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$rows = self::answer( |
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'better_payment/success_page/pro_rows', |
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[ [], (string) $position, $settings, is_array( $payment ) ? $payment : [], $context ] |
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); |
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|
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$valid = []; |
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|
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foreach ( is_array( $rows ) ? $rows : [] as $row ) { |
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if ( is_array( $row ) && isset( $row['label'], $row['value'] ) && is_scalar( $row['label'] ) && is_scalar( $row['value'] ) ) { |
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$valid[] = [ |
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'label' => (string) $row['label'], |
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'value' => (string) $row['value'], |
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]; |
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} |
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} |
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|
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return $valid; |
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} |
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|
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/** |
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* The form-field rows a payment e-mail lists, after Pro hides or relabels its own fields. |
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* |
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* @param array[] $rows `key` (stored field key), `label`, `value`, in stored order. |
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* @param string $context 'summary' (the e-mail's From section) | 'all_fields' (`[bp-all-fields]`). |
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* @param mixed $form_fields_info The transaction's stored fields. |
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* @return array[] |
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*/ |
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public static function email_rows( array $rows, $context, $form_fields_info ): array { |
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if ( ! ProCompatibility::pro_enabled() ) { |
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return $rows; |
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} |
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|
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$result = self::answer( 'better_payment/email/pro_form_field_rows', [ $rows, (string) $context, is_array( $form_fields_info ) ? $form_fields_info : [] ] ); |
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|
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if ( ! is_array( $result ) ) { |
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return $rows; |
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} |
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|
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$valid = []; |
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|
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foreach ( $result as $row ) { |
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if ( is_array( $row ) && array_key_exists( 'key', $row ) && array_key_exists( 'label', $row ) && array_key_exists( 'value', $row ) ) { |
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$valid[] = $row; |
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} |
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} |
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|
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return $valid; |
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} |
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|
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/** |
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* One step of a Pro payment, answered by Pro through its hook. |
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* |
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* Every caller checks ProCompatibility::pro_enabled() first, so a free install never |
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* reaches the hook. |
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* |
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* @param string $hook Filter name. |
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* @param array $args Filter arguments, the filtered value first. |
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* @return mixed |
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*/ |
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private static function answer( $hook, array $args ) { |
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return apply_filters_ref_array( $hook, $args ); |
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} |
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} |
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|
