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Internal/package-payment/PayPal/Response.php

@@ -0,0 +1,59 @@
+<?php namespace ZN\Payment\PayPal;
+
+use ZN\Services\CURL;
+use ZN\Payment\Exception;
+
+class Response
+{
+    /**
+     * Is valid hash
+     * 
+     * @return bool
+     */
+    public function isValidHash() : bool
+    {
+        if( empty($_POST['custom']) )
+        {
+            return false;
+        }
+
+        $query = 'cmd=_notify-validate&' . http_build_query($_POST);
+
+        $url = explode(',', $_POST['custom'])[0];
+
+        $curl = new CURL;
+
+        return $curl->init($url)
+                    ->post(true)
+                    ->postfields($query)
+                    ->returntransfer(true)
+                    ->sslVerifypeer(false)
+                    ->sslVerifyhost(false)
+                    ->exec() === 'VERIFIED';
+    }
+
+    /**
+     * Is approved
+     * 
+     * @return bool
+     */
+    public function isApproved() : bool
+    {
+        return ! empty($_POST['payment_status']) && ($_POST['payment_status'] ?? NULL) === 'Completed';
+    }
+
+    /**
+     * Get error messages
+     * 
+     * @return string|false
+     */
+    public function error() 
+    {
+        if( $this->isApproved() )
+        {
+            return false;
+        }
+
+        return $_POST['payment_status'] ?? 'Payment status not found!';
+    }
+}