Fix #1076

Author: bytestream

CHANGELOG.md

@@ -9,6 +9,7 @@ Version 5 of the Facebook PHP SDK is a complete refactor of version 4. It comes
 - 5.7.0 (2018-00-00)
   - Add `joined` to list of fields to be cast to `\DateTime` (#950)
   - Add `GraphPage::getFanCount()` to get the number of people who like the page (#815)
+  - Fixed HTTP/2 support (#1079)
 - 5.6.3 (2018-07-01)
   - Add fix for countable error in PHP 7.2 (originally #969 by @andreybolonin)
 - 5.6.2 (2018-02-15)

src/Facebook/Http/GraphRawResponse.php

@@ -104,8 +104,9 @@ public function getHttpResponseCode()
      */
     public function setHttpResponseCodeFromHeader($rawResponseHeader)
     {
-        preg_match('|HTTP/\d\.\d\s+(\d+)\s+.*|', $rawResponseHeader, $match);
-        $this->httpResponseCode = (int)$match[1];
+        // https://tools.ietf.org/html/rfc7230#section-3.1.2
+        list($version, $status, $reason) = array_pad(explode(' ', $rawResponseHeader, 3), 3, null);
+        $this->httpResponseCode = (int) $status;
     }
 
     /**

tests/Http/GraphRawResponseTest.php

@@ -90,4 +90,21 @@ public function testCanTransformJsonHeaderValues()
 
         $this->assertEquals($this->jsonFakeHeaderAsArray['x-fb-ads-insights-throttle'], $headers['x-fb-ads-insights-throttle']);
     }
+    
+    public function testHttpResponseCode()
+    {
+        // HTTP/1.0
+        $headers = str_replace('HTTP/1.1', 'HTTP/1.0', $this->fakeRawHeader);
+        $response = new GraphRawResponse($headers, '');
+        $this->assertEquals(200, $response->getHttpResponseCode());
+        
+        // HTTP/1.1
+        $response = new GraphRawResponse($this->fakeRawHeader, '');
+        $this->assertEquals(200, $response->getHttpResponseCode());
+        
+        // HTTP/2
+        $headers = str_replace('HTTP/1.1', 'HTTP/2', $this->fakeRawHeader);
+        $response = new GraphRawResponse($headers, '');
+        $this->assertEquals(200, $response->getHttpResponseCode());
+    }
 }