JezK
Edit File: PrepareBodyMiddleware.php
<?php declare(strict_types=1); namespace GuzzleHttp; use GuzzleHttp\Handler\RequestFraming; use GuzzleHttp\Promise\PromiseInterface; use Psr\Http\Message\RequestInterface; use Psr\Http\Message\ResponseInterface; /** * Prepares requests that contain a body, adding the Content-Length, * Content-Type, and Expect headers. * * @final */ class PrepareBodyMiddleware { use NonSerializableTrait; /** * @var callable(RequestInterface, array<array-key, mixed>): PromiseInterface<ResponseInterface, mixed> */ private $nextHandler; /** * @param callable(RequestInterface, array<array-key, mixed>): PromiseInterface<ResponseInterface, mixed> $nextHandler Next handler to invoke. */ public function __construct(callable $nextHandler) { $this->nextHandler = $nextHandler; } /** * @return PromiseInterface<ResponseInterface, mixed> */ public function __invoke( #[\SensitiveParameter] RequestInterface $request, #[\SensitiveParameter] array $options ): PromiseInterface { $fn = $this->nextHandler; $bodySize = RequestFraming::bodySize($request); // Don't do anything if the request has no body. if ($bodySize === 0) { return $fn($request, $options); } $modify = []; // Add a default content-type if possible. if (!$request->hasHeader('Content-Type')) { if ($uri = $request->getBody()->getMetadata('uri')) { if (is_string($uri) && $type = Psr7\MimeType::fromFilename($uri)) { $modify['set_headers']['Content-Type'] = $type; } } } // Add a default content-length or transfer-encoding header. if (!$request->hasHeader('Content-Length') && !$request->hasHeader('Transfer-Encoding') ) { if ($bodySize !== null) { $modify['set_headers']['Content-Length'] = (string) $bodySize; } elseif ($request->getProtocolVersion() === '1.1') { $modify['set_headers']['Transfer-Encoding'] = 'chunked'; } } // Add the expect header if needed. $this->addExpectHeader($request, $options, $modify, $bodySize); return $fn(Psr7\Utils::modifyRequest($request, $modify), $options); } /** * Add expect header */ private function addExpectHeader( #[\SensitiveParameter] RequestInterface $request, #[\SensitiveParameter] array $options, array &$modify, ?int $bodySize ): void { // Determine if the Expect header should be used if ($request->hasHeader('Expect')) { return; } $expect = $options['expect'] ?? null; // Return if disabled or not using HTTP/1.1. if ($expect === false || '1.1' !== $request->getProtocolVersion()) { return; } // The expect header is unconditionally enabled if ($expect === true) { $modify['set_headers']['Expect'] = '100-Continue'; return; } // By default, send the expect header when the payload is > 1mb if ($expect === null) { $expect = 1048576; } // Always add if the body cannot be rewound, the size cannot be // determined, or the size is greater than the cutoff threshold $body = $request->getBody(); if ($bodySize === null || $bodySize >= (int) $expect || !$body->isSeekable()) { $modify['set_headers']['Expect'] = '100-Continue'; } } }