561 lines
14 KiB
PHP
561 lines
14 KiB
PHP
<?php
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/**
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* Abstract payment gateway
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*
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* Hanldes generic payment gateway functionality which is extended by idividual payment gateways.
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*
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* @class WC_Payment_Gateway
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* @version 2.1.0
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* @package WooCommerce\Abstracts
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*/
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use Automattic\Jetpack\Constants;
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* WooCommerce Payment Gateway class.
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*
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* Extended by individual payment gateways to handle payments.
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*
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* @class WC_Payment_Gateway
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* @extends WC_Settings_API
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* @version 2.1.0
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* @package WooCommerce\Abstracts
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*/
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abstract class WC_Payment_Gateway extends WC_Settings_API {
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/**
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* Set if the place order button should be renamed on selection.
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*
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* @var string
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*/
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public $order_button_text;
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/**
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* Yes or no based on whether the method is enabled.
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*
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* @var string
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*/
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public $enabled = 'yes';
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/**
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* Payment method title for the frontend.
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*
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* @var string
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*/
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public $title;
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/**
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* Payment method description for the frontend.
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*
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* @var string
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*/
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public $description;
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/**
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* Chosen payment method id.
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*
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* @var bool
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*/
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public $chosen;
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/**
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* Gateway title.
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*
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* @var string
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*/
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public $method_title = '';
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/**
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* Gateway description.
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*
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* @var string
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*/
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public $method_description = '';
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/**
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* True if the gateway shows fields on the checkout.
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*
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* @var bool
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*/
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public $has_fields;
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/**
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* Countries this gateway is allowed for.
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*
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* @var array
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*/
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public $countries;
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/**
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* Available for all counties or specific.
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*
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* @var string
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*/
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public $availability;
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/**
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* Icon for the gateway.
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*
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* @var string
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*/
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public $icon;
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/**
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* Supported features such as 'default_credit_card_form', 'refunds'.
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*
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* @var array
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*/
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public $supports = array( 'products' );
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/**
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* Maximum transaction amount, zero does not define a maximum.
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*
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* @var int
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*/
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public $max_amount = 0;
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/**
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* Optional URL to view a transaction.
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*
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* @var string
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*/
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public $view_transaction_url = '';
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/**
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* Optional label to show for "new payment method" in the payment
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* method/token selection radio selection.
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*
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* @var string
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*/
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public $new_method_label = '';
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/**
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* Pay button ID if supported.
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*
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* @var string
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*/
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public $pay_button_id = '';
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/**
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* Contains a users saved tokens for this gateway.
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*
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* @var array
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*/
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protected $tokens = array();
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/**
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* Returns a users saved tokens for this gateway.
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*
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* @since 2.6.0
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* @return array
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*/
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public function get_tokens() {
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if ( count( $this->tokens ) > 0 ) {
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return $this->tokens;
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}
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if ( is_user_logged_in() && $this->supports( 'tokenization' ) ) {
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$this->tokens = WC_Payment_Tokens::get_customer_tokens( get_current_user_id(), $this->id );
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}
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return $this->tokens;
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}
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/**
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* Return the title for admin screens.
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*
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* @return string
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*/
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public function get_method_title() {
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return apply_filters( 'woocommerce_gateway_method_title', $this->method_title, $this );
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}
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/**
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* Return the description for admin screens.
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*
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* @return string
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*/
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public function get_method_description() {
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return apply_filters( 'woocommerce_gateway_method_description', $this->method_description, $this );
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}
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/**
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* Output the gateway settings screen.
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*/
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public function admin_options() {
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echo '<h2>' . esc_html( $this->get_method_title() );
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wc_back_link( __( 'Return to payments', 'woocommerce' ), admin_url( 'admin.php?page=wc-settings&tab=checkout' ) );
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echo '</h2>';
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echo wp_kses_post( wpautop( $this->get_method_description() ) );
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parent::admin_options();
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}
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/**
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* Init settings for gateways.
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*/
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public function init_settings() {
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parent::init_settings();
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$this->enabled = ! empty( $this->settings['enabled'] ) && 'yes' === $this->settings['enabled'] ? 'yes' : 'no';
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}
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/**
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* Return whether or not this gateway still requires setup to function.
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*
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* When this gateway is toggled on via AJAX, if this returns true a
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* redirect will occur to the settings page instead.
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*
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* @since 3.4.0
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* @return bool
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*/
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public function needs_setup() {
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return false;
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}
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/**
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* Get the return url (thank you page).
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*
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* @param WC_Order|null $order Order object.
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* @return string
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*/
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public function get_return_url( $order = null ) {
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if ( $order ) {
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$return_url = $order->get_checkout_order_received_url();
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} else {
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$return_url = wc_get_endpoint_url( 'order-received', '', wc_get_checkout_url() );
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}
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return apply_filters( 'woocommerce_get_return_url', $return_url, $order );
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}
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/**
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* Get a link to the transaction on the 3rd party gateway site (if applicable).
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*
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* @param WC_Order $order the order object.
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* @return string transaction URL, or empty string.
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*/
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public function get_transaction_url( $order ) {
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$return_url = '';
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$transaction_id = $order->get_transaction_id();
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if ( ! empty( $this->view_transaction_url ) && ! empty( $transaction_id ) ) {
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$return_url = sprintf( $this->view_transaction_url, $transaction_id );
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}
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return apply_filters( 'woocommerce_get_transaction_url', $return_url, $order, $this );
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}
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/**
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* Get the order total in checkout and pay_for_order.
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*
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* @return float
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*/
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protected function get_order_total() {
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$total = 0;
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$order_id = absint( get_query_var( 'order-pay' ) );
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// Gets order total from "pay for order" page.
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if ( 0 < $order_id ) {
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$order = wc_get_order( $order_id );
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$total = (float) $order->get_total();
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// Gets order total from cart/checkout.
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} elseif ( 0 < WC()->cart->total ) {
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$total = (float) WC()->cart->total;
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}
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return $total;
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}
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/**
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* Check if the gateway is available for use.
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*
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* @return bool
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*/
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public function is_available() {
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$is_available = ( 'yes' === $this->enabled );
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if ( WC()->cart && 0 < $this->get_order_total() && 0 < $this->max_amount && $this->max_amount < $this->get_order_total() ) {
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$is_available = false;
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}
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return $is_available;
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}
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/**
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* Check if the gateway has fields on the checkout.
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*
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* @return bool
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*/
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public function has_fields() {
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return (bool) $this->has_fields;
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}
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/**
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* Return the gateway's title.
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*
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* @return string
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*/
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public function get_title() {
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return apply_filters( 'woocommerce_gateway_title', $this->title, $this->id );
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}
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/**
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* Return the gateway's description.
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*
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* @return string
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*/
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public function get_description() {
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return apply_filters( 'woocommerce_gateway_description', $this->description, $this->id );
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}
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/**
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* Return the gateway's icon.
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*
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* @return string
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*/
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public function get_icon() {
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$icon = $this->icon ? '<img src="' . WC_HTTPS::force_https_url( $this->icon ) . '" alt="' . esc_attr( $this->get_title() ) . '" />' : '';
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return apply_filters( 'woocommerce_gateway_icon', $icon, $this->id );
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}
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/**
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* Return the gateway's pay button ID.
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*
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* @since 3.9.0
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* @return string
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*/
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public function get_pay_button_id() {
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return sanitize_html_class( $this->pay_button_id );
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}
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/**
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* Set as current gateway.
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*
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* Set this as the current gateway.
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*/
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public function set_current() {
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$this->chosen = true;
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}
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/**
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* Process Payment.
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*
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* Process the payment. Override this in your gateway. When implemented, this should.
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* return the success and redirect in an array. e.g:
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*
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* return array(
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* 'result' => 'success',
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* 'redirect' => $this->get_return_url( $order )
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* );
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*
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* @param int $order_id Order ID.
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* @return array
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*/
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public function process_payment( $order_id ) {
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return array();
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}
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/**
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* Process refund.
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*
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* If the gateway declares 'refunds' support, this will allow it to refund.
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* a passed in amount.
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*
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* @param int $order_id Order ID.
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* @param float|null $amount Refund amount.
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* @param string $reason Refund reason.
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* @return boolean True or false based on success, or a WP_Error object.
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*/
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public function process_refund( $order_id, $amount = null, $reason = '' ) {
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return false;
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}
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/**
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* Validate frontend fields.
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*
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* Validate payment fields on the frontend.
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*
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* @return bool
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*/
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public function validate_fields() {
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return true;
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}
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/**
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* If There are no payment fields show the description if set.
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* Override this in your gateway if you have some.
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*/
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public function payment_fields() {
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$description = $this->get_description();
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if ( $description ) {
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echo wpautop( wptexturize( $description ) ); // @codingStandardsIgnoreLine.
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}
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if ( $this->supports( 'default_credit_card_form' ) ) {
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$this->credit_card_form(); // Deprecated, will be removed in a future version.
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}
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}
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/**
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* Check if a gateway supports a given feature.
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*
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* Gateways should override this to declare support (or lack of support) for a feature.
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* For backward compatibility, gateways support 'products' by default, but nothing else.
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*
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* @param string $feature string The name of a feature to test support for.
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* @return bool True if the gateway supports the feature, false otherwise.
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* @since 1.5.7
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*/
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public function supports( $feature ) {
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return apply_filters( 'woocommerce_payment_gateway_supports', in_array( $feature, $this->supports ), $feature, $this );
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}
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/**
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* Can the order be refunded via this gateway?
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*
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* Should be extended by gateways to do their own checks.
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*
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* @param WC_Order $order Order object.
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* @return bool If false, the automatic refund button is hidden in the UI.
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*/
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public function can_refund_order( $order ) {
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return $order && $this->supports( 'refunds' );
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}
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/**
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* Core credit card form which gateways can use if needed. Deprecated - inherit WC_Payment_Gateway_CC instead.
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*
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* @param array $args Arguments.
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* @param array $fields Fields.
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*/
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public function credit_card_form( $args = array(), $fields = array() ) {
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wc_deprecated_function( 'credit_card_form', '2.6', 'WC_Payment_Gateway_CC->form' );
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$cc_form = new WC_Payment_Gateway_CC();
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$cc_form->id = $this->id;
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$cc_form->supports = $this->supports;
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$cc_form->form();
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}
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/**
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* Enqueues our tokenization script to handle some of the new form options.
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*
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* @since 2.6.0
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*/
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public function tokenization_script() {
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wp_enqueue_script(
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'woocommerce-tokenization-form',
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plugins_url( '/assets/js/frontend/tokenization-form' . ( Constants::is_true( 'SCRIPT_DEBUG' ) ? '' : '.min' ) . '.js', WC_PLUGIN_FILE ),
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array( 'jquery' ),
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WC()->version
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);
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wp_localize_script(
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'woocommerce-tokenization-form',
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'wc_tokenization_form_params',
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array(
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'is_registration_required' => WC()->checkout()->is_registration_required(),
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'is_logged_in' => is_user_logged_in(),
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)
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);
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}
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/**
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* Grab and display our saved payment methods.
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*
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* @since 2.6.0
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*/
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public function saved_payment_methods() {
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$html = '<ul class="woocommerce-SavedPaymentMethods wc-saved-payment-methods" data-count="' . esc_attr( count( $this->get_tokens() ) ) . '">';
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foreach ( $this->get_tokens() as $token ) {
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$html .= $this->get_saved_payment_method_option_html( $token );
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}
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$html .= $this->get_new_payment_method_option_html();
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$html .= '</ul>';
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echo apply_filters( 'wc_payment_gateway_form_saved_payment_methods_html', $html, $this ); // @codingStandardsIgnoreLine
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}
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/**
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* Gets saved payment method HTML from a token.
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*
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* @since 2.6.0
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* @param WC_Payment_Token $token Payment Token.
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* @return string Generated payment method HTML
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*/
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public function get_saved_payment_method_option_html( $token ) {
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$html = sprintf(
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'<li class="woocommerce-SavedPaymentMethods-token">
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<input id="wc-%1$s-payment-token-%2$s" type="radio" name="wc-%1$s-payment-token" value="%2$s" style="width:auto;" class="woocommerce-SavedPaymentMethods-tokenInput" %4$s />
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<label for="wc-%1$s-payment-token-%2$s">%3$s</label>
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</li>',
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esc_attr( $this->id ),
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esc_attr( $token->get_id() ),
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esc_html( $token->get_display_name() ),
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checked( $token->is_default(), true, false )
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);
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return apply_filters( 'woocommerce_payment_gateway_get_saved_payment_method_option_html', $html, $token, $this );
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}
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/**
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* Displays a radio button for entering a new payment method (new CC details) instead of using a saved method.
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* Only displayed when a gateway supports tokenization.
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*
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* @since 2.6.0
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*/
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public function get_new_payment_method_option_html() {
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$label = apply_filters( 'woocommerce_payment_gateway_get_new_payment_method_option_html_label', $this->new_method_label ? $this->new_method_label : __( 'Use a new payment method', 'woocommerce' ), $this );
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$html = sprintf(
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'<li class="woocommerce-SavedPaymentMethods-new">
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<input id="wc-%1$s-payment-token-new" type="radio" name="wc-%1$s-payment-token" value="new" style="width:auto;" class="woocommerce-SavedPaymentMethods-tokenInput" />
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<label for="wc-%1$s-payment-token-new">%2$s</label>
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</li>',
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esc_attr( $this->id ),
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esc_html( $label )
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);
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return apply_filters( 'woocommerce_payment_gateway_get_new_payment_method_option_html', $html, $this );
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}
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/**
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* Outputs a checkbox for saving a new payment method to the database.
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*
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* @since 2.6.0
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*/
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public function save_payment_method_checkbox() {
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$html = sprintf(
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'<p class="form-row woocommerce-SavedPaymentMethods-saveNew">
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<input id="wc-%1$s-new-payment-method" name="wc-%1$s-new-payment-method" type="checkbox" value="true" style="width:auto;" />
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<label for="wc-%1$s-new-payment-method" style="display:inline;">%2$s</label>
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</p>',
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esc_attr( $this->id ),
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esc_html__( 'Save to account', 'woocommerce' )
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);
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echo apply_filters( 'woocommerce_payment_gateway_save_new_payment_method_option_html', $html, $this ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
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}
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/**
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* Add payment method via account screen. This should be extended by gateway plugins.
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*
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* @since 3.2.0 Included here from 3.2.0, but supported from 3.0.0.
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* @return array
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*/
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public function add_payment_method() {
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return array(
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'result' => 'failure',
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'redirect' => wc_get_endpoint_url( 'payment-methods' ),
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);
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}
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}
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