# "Secure" part

### Base namespace:

```php
use PatryQHyper\Dpay\Secure\ClassName();
```

### General operations

```php
$operations = $dpay->secure(new GeneralOperations());
```

```php
$operations->getLicenseNumber();
$operations->getPrivacyPolicyUrl();
$operations->getTermsUrl();
$operations->getRegulations();
```

### Paybylink payments operations

```php
$pblOperations = $dpay->secure(new PaybylinkPayment('serviceName', 'serviceHash'));;
```

Generate payment:

```php
//required parameters
$pblOperations->setAmount(15);
$pblOperations->setSuccessUrl('https://example.com');
$pblOperations->setFailUrl('https://example.com');
$pblOperations->setIpnUrl('https://webhook.site/78d28431-e5e6-418e-8605-871c138c0884');
//optional parameters
$pblOperations->setCustom('Custom');
$pblOperations->setInstallment(bool);
$pblOperations->setCreditCard(bool);
$pblOperations->setPaypal(bool);
$pblOperations->setPaysafecard(bool);
$pblOperations->setNoBanks(bool);
$pblOperations->setChannel('channelId');
$pblOperations->setEmail('client@example.com');
$pblOperations->setClientName('Jan');
$pblOperations->setClientSurname('Kowalski');
$pblOperations->setDescription('Payment for FOO');
$pblOperations->setStyle(new \PatryQHyper\Dpay\Secure\Styles\DefaultStyle()); //see below
$payment = $pblOperations->generate();
echo $payment->getTransactionId() . PHP_EOL;
echo $payment->getTransactionUrl() . PHP_EOL;
```

#### Setting style class

Available classes:

```php
new \PatryQHyper\Dpay\Secure\Styles\DefaultStyle();
new \PatryQHyper\Dpay\Secure\Styles\DarkStyle();
new \PatryQHyper\Dpay\Secure\Styles\GreenStyle();
new \PatryQHyper\Dpay\Secure\Styles\OrangeStyle();
```

### DirectBilling operations

Register payment:

```php
$registerDirectBillingPayment = $dpay->secure(new RegisterDirectBillingPayment('guid', 'hash'));
$registerDirectBillingPayment->setAmount(15);
$registerDirectBillingPayment->setFailUrl('https://gogoel.com');
$registerDirectBillingPayment->setSuccessUrl('https://gogoel.com');
$registerDirectBillingPayment->setCustom('Custom');
$dcbPayment = $registerDirectBillingPayment->generate();
echo $dcbPayment->getTransactionUrl() . PHP_EOL;
```

## Validate Instant Payment Notification

```php
$notification = $dpay->secure(new HandlePaymentNotification('serviceHash'));
```

You may call `verify()` function to verify parameters, http method and signature. On failure it throws `DpayNotificationException`.

```php
try {
    $notification->verify();
    
    // Your rest of code, for example finding transaction in database, validating price etc.
    
    $notification->responseOk();
}    
catch(\PatryQHyper\Dpay\Exceptions\DpayNotificationException $exception) {
    echo $exception->getMessage();
    die();
}
```

You may also verify notification by yourself, and only call function `generateSignature()` which returns string of generated signature, you have to manually verify it.

```php
if($notification->generateSignature() != $ipnPayload->signature) {
    die('bad signature');
}
```

You may also use specific getters:

```php
$notification->getId(); //string
$notification->getAmount(); //string
$notification->getEmail(); //string
$notification->getType(); //string
$notification->getAttempt(); //int
$notification->getVersion(); //int
$notification->getCustom(); //string
```

`responseOk` function

This function should be used everytime in notifications because of strange Dpay parsing responses, it sometimes contains blank spaces, which will fail IPN on dpay's side. I've received this solution from Dpay's staff.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://patryqhyper.gitbook.io/dpay-php-sdk/secure-part.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.