Added support for Connect Application Fees.

src/Gateway.php

@@ -338,4 +338,14 @@ public function completePurchase(array $parameters = array())
     {
         return $this->createRequest('\Omnipay\Stripe\Message\CompletePurchaseRequest', $parameters);
     }
+
+    /**
+     * @param array $parameters
+     *
+     * @return \Omnipay\Stripe\Message\FetchApplicationFeeRequest
+     */
+    public function fetchApplicationFee(array $parameters = array())
+    {
+        return $this->createRequest('\Omnipay\Stripe\Message\FetchApplicationFeeRequest', $parameters);
+    }
 }

src/Message/FetchApplicationFeeRequest.php

@@ -0,0 +1,69 @@
+<?php
+
+/**
+ * Stripe Fetch Application Fee Request.
+ */
+
+namespace Omnipay\Stripe\Message;
+
+/**
+ * Stripe Fetch Application Fee Request.
+ *
+ * Example -- note this example assumes that an application fee has been successful.
+ *
+ * <code>
+ *   // Fetch the transaction so that details can be found for refund, etc.
+ *   $transaction = $gateway->fetchApplicationFee();
+ *   $transaction->setApplicationFeeReference($application_fee_id);
+ *   $response = $transaction->send();
+ *   $data = $response->getData();
+ *   echo "Gateway fetchApplicationFee response data == " . print_r($data, true) . "\n";
+ * </code>
+ *
+ * @see \Omnipay\Stripe\Gateway
+ *
+ * @link https://stripe.com/docs/api#retrieve_application_fee
+ */
+class FetchApplicationFeeRequest extends AbstractRequest
+{
+    /**
+     * Get the application fee reference
+     *
+     * @return string
+     */
+    public function getApplicationFeeReference()
+    {
+        return $this->getParameter('applicationFeeReference');
+    }
+
+    /**
+     * Set the application fee reference
+     *
+     * @param string $value
+     *
+     * @return AbstractRequest provides a fluent interface.
+     */
+    public function setApplicationFeeReference($value)
+    {
+        return $this->setParameter('applicationFeeReference', $value);
+    }
+
+    public function getData()
+    {
+        $this->validate('applicationFeeReference');
+
+        $data = array();
+
+        return $data;
+    }
+
+    public function getEndpoint()
+    {
+        return $this->endpoint . '/application_fees/' . $this->getApplicationFeeReference();
+    }
+
+    public function getHttpMethod()
+    {
+        return 'GET';
+    }
+}

src/Message/Response.php

@@ -100,6 +100,23 @@ public function getTransactionReference()
         return null;
     }
 
+    /**
+     * Get the balance transaction reference.
+     *
+     * @return string|null
+     */
+    public function getApplicationFeeReference()
+    {
+        if (isset($this->data['object']) && 'application_fee' === $this->data['object']) {
+            return $this->data['id'];
+        }
+        if (isset($this->data['error']) && isset($this->data['error']['application_fee'])) {
+            return $this->data['error']['application_fee'];
+        }
+
+        return null;
+    }
+
     /**
      * Get the balance transaction reference.
      *

tests/Message/FetchApplicationFeeTest.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Omnipay\Stripe\Message;
+
+use Omnipay\Tests\TestCase;
+
+class FetchApplicationFeeTest extends TestCase
+{
+    public function setUp()
+    {
+        $this->request = new FetchApplicationFeeRequest($this->getHttpClient(), $this->getHttpRequest());
+        $this->request->setApplicationFeeReference('fee_1FITlv123YJsynqe3nOIfake');
+    }
+
+    public function testEndpoint()
+    {
+        $this->assertSame('https://api.stripe.com/v1/application_fees/fee_1FITlv123YJsynqe3nOIfake', $this->request->getEndpoint());
+    }
+
+    public function testSendSuccess()
+    {
+        $this->setMockHttpResponse('FetchApplicationFeeSuccess.txt');
+        $response = $this->request->send();
+
+        $this->assertTrue($response->isSuccessful());
+        $this->assertFalse($response->isRedirect());
+        $this->assertSame('fee_1FITlv123YJsynqe3nOIfake', $response->getApplicationFeeReference());
+        $this->assertNull($response->getCardReference());
+        $this->assertNull($response->getMessage());
+    }
+
+    public function testSendError()
+    {
+        $this->setMockHttpResponse('FetchApplicationFeeFailure.txt');
+        $response = $this->request->send();
+
+        $this->assertFalse($response->isSuccessful());
+        $this->assertFalse($response->isRedirect());
+        $this->assertNull($response->getBalanceTransactionReference());
+        $this->assertNull($response->getCardReference());
+        $this->assertSame('No such application fee: fee_1FITlv123YJsynqe3nOIfake', $response->getMessage());
+    }
+}

tests/Mock/FetchApplicationFeeFailure.txt

@@ -0,0 +1,17 @@
+HTTP/1.1 404 Not Found 
+Server: nginx 
+Date: Wed, 24 Jul 2013 13:40:31 GMT 
+Content-Type: application/json;charset=utf-8 
+Content-Length: 132 
+Connection: keep-alive 
+Access-Control-Allow-Credentials: true 
+Access-Control-Max-Age: 300 
+Cache-Control: no-cache, no-store 
+
+{ 
+	"error": { 
+		"type": "invalid_request_error", 
+		"message": "No such application fee: fee_1FITlv123YJsynqe3nOIfake",
+		"param": "id" 
+	} 
+}

tests/Mock/FetchApplicationFeeSuccess.txt

@@ -0,0 +1,32 @@
+HTTP/1.1 200 OK 
+Server: nginx 
+Date: Wed, 24 Jul 2013 07:14:02 GMT 
+Content-Type: application/json;charset=utf-8 
+Content-Length: 1092 
+Connection: keep-alive 
+Access-Control-Allow-Credentials: true 
+Access-Control-Max-Age: 300 
+Cache-Control: no-cache, no-store 
+
+{
+  "id": "fee_1FITlv123YJsynqe3nOIfake",
+  "object": "application_fee",
+  "account": "acct_14901h0a0fh01293",
+  "amount": 100,
+  "amount_refunded": 0,
+  "application": "ca_Fo5xaLt123SEtSKHui0SZOgAiuVwfake",
+  "balance_transaction": "txn_1FH8W123vYJsynqeQKMWfake",
+  "charge": "ch_1FIT123rvYJsynqeQpJOFfake",
+  "created": 1568438771,
+  "currency": "usd",
+  "livemode": false,
+  "originating_transaction": null,
+  "refunded": false,
+  "refunds": {
+    "object": "list",
+    "data": [],
+    "has_more": false,
+    "total_count": 0,
+    "url": "/v1/application_fees/fee_1FITlvArvYJsynqe3nOIfake/refunds"
+  }
+}