Merge branch '4.4' into 5.4

* 4.4:
  [HttpClient] On redirections don't send content-related request headers

Author: nicolas-grekas

CurlHttpClient.php

@@ -207,9 +207,11 @@ public function request(string $method, string $url, array $options = []): Respo
 
         $hasContentLength = isset($options['normalized_headers']['content-length'][0]);
 
-        foreach ($options['headers'] as $header) {
+        foreach ($options['headers'] as $i => $header) {
             if ($hasContentLength && 0 === stripos($header, 'Content-Length:')) {
-                continue; // Let curl handle Content-Length headers
+                // Let curl handle Content-Length headers
+                unset($options['headers'][$i]);
+                continue;
             }
             if (':' === $header[-2] && \strlen($header) - 2 === strpos($header, ': ')) {
                 // curl requires a special syntax to send empty headers

NativeHttpClient.php

@@ -399,9 +399,12 @@ private static function createRedirectResolver(array $options, string $host, ?ar
                 if ('POST' === $options['method'] || 303 === $info['http_code']) {
                     $info['http_method'] = $options['method'] = 'HEAD' === $options['method'] ? 'HEAD' : 'GET';
                     $options['content'] = '';
-                    $options['header'] = array_filter($options['header'], static function ($h) {
+                    $filterContentHeaders = static function ($h) {
                         return 0 !== stripos($h, 'Content-Length:') && 0 !== stripos($h, 'Content-Type:');
-                    });
+                    };
+                    $options['header'] = array_filter($options['header'], $filterContentHeaders);
+                    $redirectHeaders['no_auth'] = array_filter($redirectHeaders['no_auth'], $filterContentHeaders);
+                    $redirectHeaders['with_auth'] = array_filter($redirectHeaders['with_auth'], $filterContentHeaders);
 
                     stream_context_set_option($context, ['http' => $options]);
                 }

Tests/HttpClientTestCase.php

@@ -388,6 +388,18 @@ public function testFixContentLength()
         $this->assertSame(['abc' => 'def', 'REQUEST_METHOD' => 'POST'], $body);
     }
 
+    public function testDropContentRelatedHeadersWhenFollowingRequestIsUsingGet()
+    {
+        $client = $this->getHttpClient(__FUNCTION__);
+
+        $response = $client->request('POST', 'http://localhost:8057/302', [
+            'body' => 'foo',
+            'headers' => ['Content-Length: 3'],
+        ]);
+
+        $this->assertSame(200, $response->getStatusCode());
+    }
+
     public function testNegativeTimeout()
     {
         $client = $this->getHttpClient(__FUNCTION__);