[HttpClient] add "max_duration" option

Author: fancyweb

HttpClientInterface.php

@@ -53,6 +53,8 @@ interface HttpClientInterface
         'proxy' => null,        // string - by default, the proxy-related env vars handled by curl SHOULD be honored
         'no_proxy' => null,     // string - a comma separated list of hosts that do not require a proxy to be reached
         'timeout' => null,      // float - the idle timeout - defaults to ini_get('default_socket_timeout')
+        'max_duration' => 0,    // float - the maximum execution time for the request+response as a whole;
+                                //   a value lower than or equal to 0 means it is unlimited
         'bindto' => '0',        // string - the interface or the local socket to bind to
         'verify_peer' => true,  // see https://php.net/context.ssl for the following options
         'verify_host' => true,

Test/Fixtures/web/index.php

@@ -132,6 +132,16 @@
         header('Content-Encoding: gzip');
         echo str_repeat('-', 1000);
         exit;
+
+    case '/max-duration':
+        ignore_user_abort(false);
+        while (true) {
+            echo '<1>';
+            @ob_flush();
+            flush();
+            usleep(500);
+        }
+        exit;
 }
 
 header('Content-Type: application/json', true);

Test/HttpClientTestCase.php

@@ -778,4 +778,25 @@ public function testGzipBroken()
         $this->expectException(TransportExceptionInterface::class);
         $response->getContent();
     }
+
+    public function testMaxDuration()
+    {
+        $client = $this->getHttpClient(__FUNCTION__);
+        $response = $client->request('GET', 'http://localhost:8057/max-duration', [
+            'max_duration' => 0.1,
+        ]);
+
+        $start = microtime(true);
+
+        try {
+            $response->getContent();
+        } catch (TransportExceptionInterface $e) {
+            $this->addToAssertionCount(1);
+        }
+
+        $duration = microtime(true) - $start;
+
+        $this->assertGreaterThanOrEqual(0.1, $duration);
+        $this->assertLessThan(0.2, $duration);
+    }
 }