WIP configure seekable body plugin

Author: dbu

src/DependencyInjection/Configuration.php

@@ -414,6 +414,32 @@ private function createClientPluginNode()
                         ->end()
                     ->end()
                 ->end()
+                ->arrayNode('request_seekable_body')
+                    ->canBeEnabled()
+                    ->info('Ensure that the request body is seekable so that several plugins can look into it.')
+                    ->children()
+                        ->booleanNode('use_file_buffer')
+                            ->info('Whether to use a file buffer if the stream is too big for a memory buffer')
+                            ->defaultTrue()
+                        ->end()
+                        ->scalarNode('memory_buffer_size')
+                            ->info('Maximum memory size in bytes before using a file buffer if use_file_buffer is true. Defaults to 2 MB')
+                        ->end()
+                    ->end()
+                ->end()
+                ->arrayNode('response_seekable_body')
+                    ->canBeEnabled()
+                    ->info('Ensure that the response body is seekable so that several plugins can look into it.')
+                    ->children()
+                        ->booleanNode('use_file_buffer')
+                            ->info('Whether to use a file buffer if the stream is too big for a memory buffer')
+                            ->defaultTrue()
+                        ->end()
+                        ->scalarNode('memory_buffer_size')
+                            ->info('Maximum memory size in bytes before using a file buffer if use_file_buffer is true. Defaults to 2 MB')
+                        ->end()
+                    ->end()
+                ->end()
             ->end()
         ->end();
 

src/DependencyInjection/HttplugExtension.php

@@ -264,6 +264,11 @@ private function configurePluginByName($name, Definition $definition, array $con
 
                 break;
 
+            case 'request_seekable_body':
+            case 'response_seekable_body':
+                $definition->replaceArgument(0, $config);
+                break;
+
             default:
                 throw new \InvalidArgumentException(sprintf('Internal exception: Plugin %s is not handled', $name));
         }

tests/Unit/DependencyInjection/HttplugExtensionTest.php

@@ -103,6 +103,12 @@ public function testClientPlugins()
                                 'headers' => ['X-FOO'],
                             ],
                         ],
+                        [
+                            'request_seekable_body' => [
+                                'use_file_buffer' => true,
+                            ],
+                        ],
+//                        'response_seekable_body',
                         [
                             'query_defaults' => [
                                 'parameters' => ['locale' => 'en'],