Free Kassa component for Yii2

Payment gateway and api client for Free Kassa service.

Installation

The preferred way to install this extension is through composer.

Either run

php composer.phar require --prefer-dist yarcode/yii2-free-kassa "~1.0"

or add

"yarcode/yii2-free-kassa": "~1.0"

to the require section of your composer.json.

Usage

Component configuration

Configure freeKassa component in the components section of your application.

'freeKassa' => [
    'class' => '\yarcode\freekassa\Merchant',
    'merchantId' => 'YOUR_MERCHANT_ID',
    'merchantFormSecret' => 'SECRET_1',
    'checkDataSecret' => 'SECRET_2',
    'defaultCurrency' => 'DEFAULT_CURRENCY_ID',
    'defaultLanguage' => 'ru' // or 'en' 
],

Redirecting to the payment system

To redirect user to PerfectMoney site you need to create the page with RedirectForm widget. User will redirected right after page load.

<?= \yarcode\freekassa\RedirectForm::widget([
    'message' => 'Redirecting to payment gateway...',
    'api' => Yii::$app->get('freeKassa'),
    'invoiceId' => $invoice->id,
    'amount' => $invoice->amount,
    'description' => $invoice->description,
    'email' => $invoice->owner->email
]); ?>

Gateway controller

You will need to create controller that will handle result requests from PerfectMoney service. Sample controller code:

<?php
namespace frontend\controllers;

use common\models\Invoice;
use yii\base\Event;
use yii\helpers\ArrayHelper;
use yii\helpers\VarDumper;
use yii\web\Controller;
use yarcode\freekassa\actions\ResultAction;
use yarcode\freekassa\events\GatewayEvent;
use yarcode\freekassa\Merchant;

class PerfectMoneyController extends Controller
{
    public $enableCsrfValidation = false;

    protected $componentName = 'freeKassa';

    public function init()
    {
        parent::init();
        /** @var Api $pm */
        $freeKassa = \Yii::$app->get($this->componentName);
        $freeKassa->on(GatewayEvent::EVENT_PAYMENT_REQUEST, [$this, 'handlePaymentRequest']);
        $freeKassa->on(GatewayEvent::EVENT_PAYMENT_SUCCESS, [$this, 'handlePaymentSuccess']);
    }

    public function actions()
    {
        return [
            'result' => [
                'class' => ResultAction::className(),
                'componentName' => $this->componentName,
                'redirectUrl' => ['/site/index'],
                'sendConfirmationResponse' => true
            ],
            'success' => [
                'class' => ResultAction::className(),
                'componentName' => $this->componentName,
                'redirectUrl' => ['/site/index'],
                'silent' => true,
                'sendConfirmationResponse' => false
            ],
            'failure' => [
                'class' => ResultAction::className(),
                'componentName' => $this->componentName,
                'redirectUrl' => ['/site/index'],
                'silent' => true,
                'sendConfirmationResponse' => false
            ]
       ];
    }

    /**
     * @param GatewayEvent $event
     * @return bool
     */
    public function handlePaymentRequest($event)
    {
        $invoice = Invoice::findOne(ArrayHelper::getValue($event->gatewayData, 'MERCHANT_ORDER_ID'));

        if (!$invoice instanceof Invoice ||
            $invoice->status != Invoice::STATUS_NEW ||
            ArrayHelper::getValue($event->gatewayData, 'AMOUNT') != $invoice->amount ||
            ArrayHelper::getValue($event->gatewayData, 'MERCHANT_ID') != \Yii::$app->get($this->componentName)->merchantId
        )
            return;

        $invoice->debugData = VarDumper::dumpAsString($event->gatewayData);
        $event->invoice = $invoice;
        $event->handled = true;
    }

    /**
     * @param GatewayEvent $event
     * @return bool
     */
    public function handlePaymentSuccess($event)
    {
        $invoice = $event->invoice;

        // TODO: invoice processing goes here 
    }
}

Licence

MIT

Links

• Official site
• Source code on GitHub
• Composer package on Packagist
• FreeKassa service