File api/class-wc-braintree-controller-local-payment.php

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<?php
defined( 'ABSPATH' ) || exit();

use \PaymentPlugins\WC_Braintree_Constants as Constants;

/**
 * Controller class that is called when a local payment gateway is used.
 * This controller stores
 * the payer data for later use by webhooks so the payment can be completed.
 *
 * @since 3.0.0
 * @package Braintree/API
 * @author User
 *
 */
class WC_Braintree_Controller_Local_Payment extends WC_Braintree_Controller_Frontend {

    protected $namespace = 'local-payment/';

    public function register_routes() {
        register_rest_route(
            $this->rest_uri(), 'payment-data', array(
                'methods'             => WP_REST_Server::CREATABLE,
                'callback'            => array( $this, 'save_payment_data' ),
                'permission_callback' => '__return_true',
            )
        );
        register_rest_route( $this->rest_uri(), 'payment/complete', array(
            'methods'             => WP_REST_Server::CREATABLE,
            'callback'            => array( $this, 'complete_payment' ),
            'permission_callback' => '__return_true'
        ) );
    }

    /**
     * Store the payer Id against the order so it can be used later on to process the payment.
     *
     * @param WP_REST_Request $request
     */
    public function save_payment_data( $request ) {
        try {
            // get the order;
            $order = wc_get_order( $request->get_param( 'order_id' ) );
            if ( ! hash_equals( $order->get_order_key(), $request['order_key'] ) ) {
                throw new Exception( __( 'Invalid order key', 'woo-payment-gateway' ) );
            }
            $order->update_meta_data( Constants::PAYMENT_ID, $request->get_param( 'payment_id' ) );
            $order->save();

            return rest_ensure_response( array( 'redirect_url' => $order->get_checkout_order_received_url() ) );
        } catch ( Exception $e ) {
            return new WP_Error( 'order-error', $e->getMessage(), array( 'status' => 200 ) );
        }
    }

    /**
     * @param WP_REST_Request $request
     */
    public function complete_payment( $request ) {
        try {
            $order = wc_get_order( absint( WC()->session->get( 'order_awaiting_payment' ) ) );
            /**
             * @var WC_Braintree_Payment_Gateway $gateway
             */
            $gateway = WC()->payment_gateways()->payment_gateways()[ $order->get_payment_method() ];
            $result  = $gateway->process_payment( $order->get_id() );
            if ( isset( $result['result'] ) && $result['result'] === 'success' ) {
                return rest_ensure_response( $result );
            } else {
                return rest_ensure_response( array( 'result' => 'failure', 'messages' => $this->get_error_messages() ) );
            }
        } catch ( Exception $e ) {
            return new WP_Error( 'payment-error', $e->getMessage(), array( 'status' => $e->getCode() ) );
        }
    }
}

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