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