vendor/omnipay/paypal/src/Message/RestAuthorizeResponse.php

<?php
namespace Omnipay\PayPal\Message;
 
use Omnipay\Common\Message\RedirectResponseInterface;
 
class RestAuthorizeResponse extends RestResponse implements RedirectResponseInterface
{
    public function isSuccessful()
    {
        return empty($this->data['error']) && $this->getCode() == 201;
    }
 
    public function isRedirect()
    {
        return $this->getRedirectUrl() !== null;
    }
 
    public function getRedirectUrl()
    {
        if (isset($this->data['links']) && is_array($this->data['links'])) {
            foreach ($this->data['links'] as $key => $value) {
                if ($value['rel'] == 'approval_url') {
                    return $value['href'];
                }
            }
        }
 
        return null;
    }
 
    public function getCompleteUrl()
    {
        if (isset($this->data['links']) && is_array($this->data['links'])) {
            foreach ($this->data['links'] as $key => $value) {
                if ($value['rel'] == 'execute') {
                    return $value['href'];
                }
            }
        }
 
        return null;
    }
 
    public function getTransactionReference()
    {
        // The transaction reference for a paypal purchase request or for a
        // paypal create subscription request ends up in the execute URL
        // in the links section of the response.
        $completeUrl = $this->getCompleteUrl();
        if (empty($completeUrl)) {
            return parent::getTransactionReference();
        }
 
        $urlParts = explode('/', $completeUrl);
 
        // The last element of the URL should be "execute"
        $execute = end($urlParts);
        if (!in_array($execute, array('execute', 'agreement-execute'))) {
            return parent::getTransactionReference();
        }
 
        // The penultimate element should be the transaction reference
        return prev($urlParts);
    }
 
    public function getRedirectMethod()
    {
        return 'GET';
    }
 
    public function getRedirectData()
    {
        return null;
    }
}