Token Billing with PayFast.

app/PaymentDrivers/PayFast/CreditCard.php

@@ -15,14 +15,16 @@ namespace App\PaymentDrivers\PayFast;
 use App\Exceptions\PaymentFailed;
 use App\Jobs\Mail\PaymentFailureMailer;
 use App\Jobs\Util\SystemLogger;
+use App\Models\ClientGatewayToken;
 use App\Models\GatewayType;
 use App\Models\Payment;
+use App\Models\PaymentHash;
 use App\Models\PaymentType;
 use App\Models\SystemLog;
 use App\PaymentDrivers\PayFastPaymentDriver;
-use Illuminate\Support\Str;
-use Illuminate\Support\Facades\Cache;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Str;
 
 class CreditCard
 {
@@ -159,8 +161,6 @@ class CreditCard
 
  	}  
 
-
-
     public function paymentView($data)
     {
 

app/PaymentDrivers/PayFast/Token.php

@@ -0,0 +1,178 @@
+<?php
+
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2021. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace App\PaymentDrivers\PayFast;
+
+use App\Exceptions\PaymentFailed;
+use App\Jobs\Mail\PaymentFailureMailer;
+use App\Jobs\Util\SystemLogger;
+use App\Models\ClientGatewayToken;
+use App\Models\GatewayType;
+use App\Models\Payment;
+use App\Models\PaymentHash;
+use App\Models\PaymentType;
+use App\Models\SystemLog;
+use App\PaymentDrivers\PayFastPaymentDriver;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Str;
+use GuzzleHttp\RequestOptions;
+
+class Token
+{
+
+    public $payfast;
+
+    //https://api.payfast.co.za/subscriptions/dc0521d3-55fe-269b-fa00-b647310d760f/adhoc 
+
+    public function __construct(PayFastPaymentDriver $payfast)
+    {
+        $this->payfast = $payfast;
+    }
+
+	// Attributes
+	// merchant-id
+	// integer, 8 char | REQUIRED
+	// Header, the Merchant ID as given by the PayFast system.
+	// version
+	// string | REQUIRED
+	// Header, the PayFast API version (i.e. v1).
+	// timestamp
+	// ISO-8601 date and time | REQUIRED
+	// Header, the current timestamp (YYYY-MM-DDTHH:MM:SS[+HH:MM]).
+	// signature
+	// string | REQUIRED
+	// Header, MD5 hash of the alphabetised submitted header and body variables, as well as the passphrase. Characters must be in lower case.
+	// amount
+	// integer | REQUIRED
+	// Body, the amount which the buyer must pay, in cents (ZAR), no decimals.
+	// item_name
+	// string, 100 char | REQUIRED
+	// Body, the name of the item being charged for.
+	// item_description
+	// string, 255 char | OPTIONAL
+	// Body, the description of the item being charged for.
+	// itn
+	// boolean | OPTIONAL
+	// Body, specify whether an ITN must be sent for the tokenization payment (true by default).
+	// m_payment_id
+	// string, 100 char | OPTIONAL
+	// Body, unique payment ID on the merchant’s system.
+	// cc_cvv
+	// numeric | OPTIONAL
+
+
+    public function tokenBilling(ClientGatewayToken $cgt, PaymentHash $payment_hash)
+    {
+
+        $amount = array_sum(array_column($payment_hash->invoices(), 'amount')) + $payment_hash->fee_total;
+		$amount = round(($amount * pow(10, $this->payfast->client->currency()->precision)),0);
+
+		$header =[
+            'merchant-id' => $this->payfast->company_gateway->getConfigField('merchantId'),
+            'timestamp' => now()->format('c'),
+            'version' => 'v1',
+		];
+
+        $body = [
+            'amount' => $amount,
+            'item_name' => 'purchase',
+            'item_description' => ctrans('texts.invoices') . ': ' . collect($payment_hash->invoices())->pluck('invoice_number'),
+            'm_payment_id' => $payment_hash->hash,
+            'passphrase' => $this->payfast->company_gateway->getConfigField('passphrase'),
+        ];        
+
+        $header['signature'] = $this->payfast->genSig(array_merge($header, $body));
+
+        $result = $this->send($header, $body, $cgt->token);
+
+        nlog($result);
+        
+        // /*Refactor and push to BaseDriver*/
+        // if ($data['response'] != null && $data['response']->getMessages()->getResultCode() == 'Ok') {
+
+        //     $response = $data['response'];
+
+        //     $this->storePayment($payment_hash, $data);
+
+        //     $vars = [
+        //         'invoices' => $payment_hash->invoices(),
+        //         'amount' => $amount,
+        //     ];
+
+        //     $logger_message = [
+        //         'server_response' => $response->getTransactionResponse()->getTransId(),
+        //         'data' => $this->formatGatewayResponse($data, $vars),
+        //     ];
+
+        //     SystemLogger::dispatch($logger_message, SystemLog::CATEGORY_GATEWAY_RESPONSE, SystemLog::EVENT_GATEWAY_SUCCESS, SystemLog::TYPE_AUTHORIZE, $this->authorize->client, $this->authorize->client->company);
+
+        //     return true;
+        // } else {
+
+        //     $vars = [
+        //         'invoices' => $payment_hash->invoices(),
+        //         'amount' => $amount,
+        //     ];
+
+        //     $logger_message = [
+        //         'server_response' => $response->getTransactionResponse()->getTransId(),
+        //         'data' => $this->formatGatewayResponse($data, $vars),
+        //     ];
+
+        //     PaymentFailureMailer::dispatch($this->authorize->client, $response->getTransactionResponse()->getTransId(), $this->authorize->client->company, $amount);
+
+        //     SystemLogger::dispatch($logger_message, SystemLog::CATEGORY_GATEWAY_RESPONSE, SystemLog::EVENT_GATEWAY_FAILURE, SystemLog::TYPE_AUTHORIZE, $this->authorize->client, $this->authorize->client->company);
+
+        //     return false;
+        // }
+    }
+
+    private function genSig($data)
+    {
+    	$fields = [];
+
+    	ksort($data);
+
+        foreach($data as $key => $value)
+        {
+        	if (!empty($data[$key])) {
+                $fields[$key] = $data[$key];
+            }
+        }
+
+        return md5(http_build_query($fields));
+    }
+
+    private function send($headers, $body, $token)
+    {
+    	$client =  new \GuzzleHttp\Client(
+        [
+            'headers' => $headers,
+        ]);
+
+        try {
+            $response = $client->post("https://api.payfast.co.za/subscriptions/{$token}/adhoc",[
+                RequestOptions::JSON => ['body' => $body], RequestOptions::ALLOW_REDIRECTS => false
+            ]);
+
+            return json_decode($response->getBody(),true);
+        }
+        catch(\Exception $e)
+        {
+
+        	nlog($e->getMessage());
+
+        }
+    }
+}
+

app/PaymentDrivers/PayFastPaymentDriver.php

@@ -17,10 +17,11 @@ use App\Models\Payment;
 use App\Models\PaymentHash;
 use App\Models\SystemLog;
 use App\PaymentDrivers\PayFast\CreditCard;
+use App\PaymentDrivers\PayFast\Token;
 use App\Utils\Traits\MakesHash;
-use \PayFastPayment;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Cache;
+use \PayFastPayment;
 
 class PayFastPaymentDriver extends BaseDriver
 {
@@ -120,7 +121,7 @@ class PayFastPaymentDriver extends BaseDriver
 
     public function tokenBilling(ClientGatewayToken $cgt, PaymentHash $payment_hash)
     {
-        return $this->payment_method->yourTokenBillingImplmentation(); //this is your custom implementation from here
+        return (new Token($this))->tokenBilling($cgt, $payment_hash);
     }
 
     // public function generateSignature($data, $passPhrase = null) 

tests/Unit/CentConversionTest.php

@@ -0,0 +1,67 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2021. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://opensource.org/licenses/AAL
+ */
+namespace Tests\Unit;
+
+use App\DataMapper\ClientSettings;
+use Tests\TestCase;
+
+/**
+ * @test
+ */
+class CentConversionTest extends TestCase
+{
+    public function setUp() :void
+    {
+        parent::setUp();
+
+    }
+
+    public function testConversionOfDecimalValues()
+    {
+
+        $precision = 2;
+
+        $amount = 10.20;
+        $amount = round(($amount * pow(10, $precision)),0);
+
+        $this->assertEquals(1020, $amount);
+
+        $amount = 2;
+        $amount = round(($amount * pow(10, $precision)),0);
+
+        $this->assertEquals(200, $amount);
+
+        $amount = 2.12;
+        $amount = round(($amount * pow(10, $precision)),0);
+
+        $this->assertEquals(212, $amount);
+    }
+
+
+    public function testBcMathWay()
+    {
+
+        $amount = 64.99;
+        $amount = bcmul($amount, 100);
+        
+        $this->assertEquals(6499, $amount);
+
+        $amount = 2;
+        $amount = bcmul($amount, 100);
+
+        $this->assertEquals(200, $amount);
+
+        $amount = 2.12;
+        $amount = bcmul($amount, 100);
+
+        $this->assertEquals(212, $amount);
+    }
+}