eSewa Integration Example

EsewaController.php

<?php
/**
 * Created by PhpStorm.
 * User: bhaktaraz
 * Date: 6/13/18
 * Time: 2:47 PM
 */

namespace Fundprabhu\Bundle\PaymentBundle\Controller;

use Symfony\Component\HttpFoundation\Request;
use Fundprabhu\Bundle\MainBundle\Entity\Donation;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class EsewaController extends Controller
{
    public function redirectAction(Request $request)
    {
        $donationId = $request->get('donation_id');
        $donation = $this->getDoctrine()->getRepository(Donation::class)->find($donationId);

        $amt = $donation->getAmount();
        $txAmt = 0;
        $psc = 0;
        $pdc = 0;
        $tAmt = $amt + $txAmt + $psc + $pdc;
        $pid = $donation->getId();

        $data['donation'] = $donation;

        $data['tAmt'] = $tAmt;
        $data['pid'] = $pid;

        return $this->render('FundprabhuPaymentBundle:Esewa:redirect.html.twig', $data);
    }

    public function successAction(Request $request)
    {
        $oid = $request->get('oid');
        $pid = $oid;
        $rid = $request->get('refId');
        $amt = $request->get('amt');
        $esewaUrl = $this->container->getParameter('esewa_tra_veryfy_url');
        $scd = $this->container->getParameter('esewa_service_code');
        $url = $esewaUrl . '?' . 'rid=' . $rid . '&pid=' . $pid . '&amt=' . $amt . '&scd=' . $scd;

        $em = $this->getDoctrine()->getManager();

        $donationId = $this->get('session')->get('donation_id');
        $donation = $em->getRepository(Donation::class)->find($donationId);

        //verify transaction
        if ($this->transactionVerify($url)) {
            $donation->setStatus(Donation::DONATION_STATUS_SUCCESS);

            $em->persist($donation);
            $em->flush();

            $this->addFlash('success',
                'You have successfully donated for campaign ' . $donation->getCampaign()->getTitle());
        } else {
            $this->addFlash('error',
                'Unable to make donation for campaign ' . $donation->getCampaign()->getTitle());
        }

        return $this->redirectToRoute('fundprabhu_web_user_donations');
    }

    public function failureAction()
    {
        $em = $this->getDoctrine()->getManager();

        $donationId = $this->get('session')->get('donation_id');
        $donation = $em->getRepository(Donation::class)->find($donationId);

        $em = $this->getDoctrine()->getManager();
        $em->persist($donation);
        $em->flush();

        $this->addFlash('error',
            'Unable to make donation for campaign ' . $donation->getCampaign()->getTitle());

        return $this->redirectToRoute('fundprabhu_web_user_donations');
    }

    private function transactionVerify($url)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $response = curl_exec($ch);
        curl_close($ch);
        $dom = new \DOMDocument();
        $dom->loadXML($response);
        $result = simplexml_import_dom($dom);
        if (trim($result[0]->response_code) == 'Success') {
            return true;
        }

        return false;
    }
}