Merge branch 'fix/#27-fix-memory-leak-in-header-creation-logic' into develop

Forward port #27

Author: Ocramius

CHANGELOG.md

@@ -20,7 +20,7 @@ All notable changes to this project will be documented in this file, in reverse
 
 - Nothing.
 
-## 2.6.1 - TBD
+## 2.6.2 - TBD
 
 ### Added
 
@@ -38,6 +38,26 @@ All notable changes to this project will be documented in this file, in reverse
 
 - Nothing.
 
+## 2.6.1 - 2017-08-11
+
+### Added
+
+- Nothing.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
+- Nothing.
+
+### Fixed
+
+- [#27](https://github.com/zendframework/zend-xmlrpc/pull/19) fixed a memory leak
+  caused by repetitive addition of `Accept` and `Content-Type` headers on subsequent
+  HTTP requests produced by the `Zend\XmlRpc\Client`.
+
 ## 2.6.0 - 2016-06-21
 
 ### Added

src/Client.php

@@ -181,10 +181,15 @@ public function skipSystemLookup()
     /**
      * Perform an XML-RPC request and return a response.
      *
-     * @param \Zend\XmlRpc\Request $request
+     * @param \Zend\XmlRpc\Request       $request
      * @param null|\Zend\XmlRpc\Response $response
-     * @return void
+     *
+     * @throws \Zend\Http\Exception\InvalidArgumentException
+     * @throws \Zend\Http\Client\Exception\RuntimeException
      * @throws \Zend\XmlRpc\Client\Exception\HttpException
+     * @throws \Zend\XmlRpc\Exception\ValueException
+     *
+     * @return void
      */
     public function doRequest($request, $response = null)
     {
@@ -205,12 +210,16 @@ public function doRequest($request, $response = null)
         }
 
         $headers = $httpRequest->getHeaders();
-        $headers->addHeaders([
-            'Content-Type: text/xml; charset=utf-8',
-            'Accept: text/xml',
-        ]);
 
-        if (!$headers->get('user-agent')) {
+        if (!$headers->has('Content-Type')) {
+            $headers->addHeaderLine('Content-Type', 'text/xml; charset=utf-8');
+        }
+
+        if (!$headers->has('Accept')) {
+            $headers->addHeaderLine('Accept', 'text/xml');
+        }
+
+        if (!$headers->has('user-agent')) {
             $headers->addHeaderLine('user-agent', 'Zend_XmlRpc_Client');
         }
 

test/ClientTest.php

@@ -603,6 +603,42 @@ public function testCustomHttpClientUserAgentIsNotOverridden()
         $this->assertSame($expectedUserAgent, $this->httpClient->getHeader('user-agent'));
     }
 
+    /**
+     * @group #27
+     */
+    public function testContentTypeIsNotReplaced()
+    {
+        $this->assertFalse(
+            $this->httpClient->getHeader('Content-Type'),
+            'Content-Type is null if no request was made'
+        );
+
+        $expectedContentType = 'text/xml; charset=utf-8';
+        $this->httpClient->setHeaders(['Content-Type' => $expectedContentType]);
+
+        $this->setServerResponseTo(true);
+        $this->assertTrue($this->xmlrpcClient->call('method'));
+        $this->assertSame($expectedContentType, $this->httpClient->getHeader('Content-Type'));
+    }
+
+    /**
+     * @group #27
+     */
+    public function testAcceptIsNotReplaced()
+    {
+        $this->assertFalse(
+            $this->httpClient->getHeader('Accept'),
+            'Accept header is null if no request was made'
+        );
+
+        $expectedAccept = 'text/xml';
+        $this->httpClient->setHeaders(['Accept' => $expectedAccept]);
+
+        $this->setServerResponseTo(true);
+        $this->assertTrue($this->xmlrpcClient->call('method'));
+        $this->assertSame($expectedAccept, $this->httpClient->getHeader('Accept'));
+    }
+
     /**
      * @group ZF-8478
      */