Added Callback

.gitignore

@@ -1,4 +1,5 @@
 vendor/*
 .env
 index.php
-tests/*
+callback-tripay.json
+CallbackHandler.php

README.MD

@@ -5,6 +5,7 @@ Tripay Payment Gateway Client Library
 For details please visit Official [Documentation](https://payment.tripay.co.id/developer).
 
 ## Instalation
+
 ```
 composer require reactmore/tripay-payment-gateway
 ```
@@ -51,15 +52,66 @@ print_r($init->instructions()->get($payload));
 echo '</pre>';
 ```
 
+Callback Handler 
+```php
+<?php
+
+require __DIR__ . '/vendor/autoload.php';
+
+use Reactmore\Tripay\Main;
+
+$data = new Main();
+
+$init = $data->initCallback();
+
+if ($init->validateSignature()) {
+
+    if ($init->callEvent() === 'payment_status') {
+        // Response Callback
+        $data = json_encode($init->get(), true);
+
+        // Get Status From Data
+        $status = $data['status'];
+
+        if ($status === 'PAID') {
+            // Your Logic
+            echo $status;
+        } elseif ($status === 'PAID') {
+            // Your Logic
+            echo $status;
+        } elseif ($status === 'UNPAID') {
+            // Your Logic
+            echo $status;
+        } elseif ($status === 'REFUND') {
+            // Your Logic
+            echo $status;
+        } elseif ($status === 'EXPIRED') {
+            // Your Logic
+            echo $status;
+        } else {
+            // Your Logic
+            echo $status; // Failed
+        }
+    }
+    // IF ERROR FROM SYSTEM THROW IN THIS SECTIONS 
+
+    // PUT RESPONSE CALLBACK TO CALLBACK-TRIPAY.JSON
+    file_put_contents(__DIR__ . '/callback-tripay.json', $init->get() . PHP_EOL . PHP_EOL, FILE_APPEND | LOCK_EX);
+} else {
+    echo  'Invalid Signature! ';
+    exit;
+}
+```
+
 ## Method
 
 | API  | Method | Endpoint | Status |
 |---|---|---|---|
 | `PAYMENT Method`| `initPayment()` | `instructions()` | OK |
 | `MERCHANT Method`|  `initMerchant()` | `paymentchannel()`, `calculator()`, `transactions` | OK |
-| `TRANSACTIONS CLOSE`|  `initTransactions()`| `transactions`, `detail` | OK |
-| `TRANSACTIONS OPEN`| `initTransactionsOpen()` | | Progress |
-| `CALLBACK`|  `InitCallback()` | | Progress |
+| `TRANSACTIONS CLOSE`|  `initTransactions()`| `transactions()`, `detail()`, `create()` | OK |
+| `TRANSACTIONS OPEN`| `initTransactionsOpen()` | `transactions()`, `detail()`, `create()` | OK |
+| `CALLBACK`|  `InitCallback()` | `signature()`, `callbackSignature()`, `validateSignature()`, `CallEvent()`| OK |
 | `PPOB`|  `InitPPOB()` | | Progress |
 
 ## For Handle Actions 
@@ -80,6 +132,7 @@ Return Throw;
 | `Content type must be array` | All request make from Array so code not pass if not in array
 
 
+
 ## License
 
 Please see the [LICENSE](LICENSE) included in this repository for a full copy of the MIT license, which this project is licensed under.

app/Main.php

@@ -9,7 +9,7 @@
 use Reactmore\Tripay\Services\Transactions\Open\InitTransactionsOpen;
 use Reactmore\Tripay\Helpers\FileHelper;
 use Reactmore\Tripay\Helpers\Validations\MainValidator;
-
+use Reactmore\Tripay\Services\Callback;
 
 class Main implements MainInterface
 {
@@ -85,4 +85,9 @@ public function initTransactionsOpen()
     {
         return new InitTransactionsOpen($this);
     }
+
+    public function initCallback()
+    {
+        return new Callback($this);
+    }
 }

app/Services/Callback.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace Reactmore\Tripay\Services;
+
+use Symfony\Component\HttpFoundation\Request;
+
+class Callback
+{
+
+    public $request, $privateKey;
+
+
+    public function __construct($data)
+    {
+        $this->privateKey = $data->credential['privateKey'];
+        $this->request = Request::createFromGlobals();
+    }
+
+
+    public function get()
+    {
+        return $this->request->getContent();
+    }
+
+    public function signature()
+    {
+        return hash_hmac('sha256', $this->get(), $this->privateKey);
+    }
+
+
+    public function callbackSignature()
+    {
+        return isset($_SERVER['HTTP_X_CALLBACK_SIGNATURE']) ? $_SERVER['HTTP_X_CALLBACK_SIGNATURE'] : '';
+    }
+
+    public function callEvent()
+    {
+        return isset($_SERVER['HTTP_X_CALLBACK_EVENT']) ? $_SERVER['HTTP_X_CALLBACK_EVENT'] : '';
+    }
+
+    public function validateSignature(): bool
+    {
+        if ($this->callbackSignature() !== $this->signature()) {
+            return false;
+        }
+
+        return true;
+    }
+}

composer.json

@@ -12,7 +12,8 @@
     "require": {
         "php": "^7.0 | ^8.0",
         "guzzlehttp/guzzle": "^6.5 || ^7.0",
-        "vlucas/phpdotenv": "^4.2 || ^5.0"
+        "vlucas/phpdotenv": "^4.2 || ^5.0",
+        "symfony/http-foundation": "^5.3"
     },
     "require-dev": {
         "mockery/mockery": "~1.3",
@@ -25,4 +26,4 @@
             "vendor/bin/phpunit tests"
         ]
     }
-}
+}