Fix fatal error for long bodies (#116)

* Fix fatal error for long bodies

* Set body size limit to 8192

* Phrasing

Author: GaryPEGEOT

CHANGELOG.md

@@ -9,6 +9,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## Unreleased
 
+### Fixed
+
+- Fixed Fatal error on `CurlCommandFormatter` when body is larger than `escapeshellarg` allowed length.   
+
 ## [1.7.2] - 2018-10-30
 
 ### Fixed

spec/Formatter/CurlCommandFormatterSpec.php

@@ -108,4 +108,22 @@ function it_formats_requests_with_nonseekable_body(RequestInterface $request, Ur
 
         $this->formatRequest($request)->shouldReturn("curl 'http://foo.com/bar' --request POST --data '[non-seekable stream omitted]'");
     }
+
+    function it_formats_requests_with_long_body(RequestInterface $request, UriInterface $uri, StreamInterface $body)
+    {
+        $request->getUri()->willReturn($uri);
+        $request->getBody()->willReturn($body);
+
+        $body->__toString()->willReturn('a very long body');
+        $body->getSize()->willReturn(2097153);
+        $body->isSeekable()->willReturn(true);
+        $body->rewind()->willReturn(true);
+
+        $uri->withFragment('')->willReturn('http://foo.com/bar');
+        $request->getMethod()->willReturn('POST');
+        $request->getProtocolVersion()->willReturn('1.1');
+        $request->getHeaders()->willReturn([]);
+
+        $this->formatRequest($request)->shouldReturn("curl 'http://foo.com/bar' --request POST --data '[too long stream omitted]'");
+    }
 }

src/Formatter/CurlCommandFormatter.php

@@ -36,7 +36,10 @@ public function formatRequest(RequestInterface $request)
 
         $body = $request->getBody();
         if ($body->getSize() > 0) {
-            if ($body->isSeekable()) {
+            // escapeshellarg argument max length on Windows, but longer body in curl command would be impractical anyways
+            if ($body->getSize() > 8192) {
+                $data = '[too long stream omitted]';
+            } elseif ($body->isSeekable()) {
                 $data = $body->__toString();
                 $body->rewind();
                 if (preg_match('/[\x00-\x1F\x7F]/', $data)) {