ResponseFactory: added fromString() & fromUrl()

Author: dg

src/Http/ResponseFactory.php

@@ -32,6 +32,45 @@ public function fromGlobals(): Response
 	}
 
 
+	public function fromString(string $message): Response
+	{
+		$response = new Response;
+		$parts = explode("\r\n\r\n", $message, 2);
+		$headers = explode("\r\n", $parts[0]);
+		$this->parseStatus($response, array_shift($headers));
+		$this->parseHeaders($response, $headers);
+		$response->setBody($parts[1] ?? '');
+		return $response;
+	}
+
+
+	public function fromUrl(string $url): Response
+	{
+		$response = new Response;
+		$response->setBody(file_get_contents($url));
+		$headers = [];
+		foreach ($http_response_header as $header) {
+			if (substr($header, 0, 5) === 'HTTP/') {
+				$headers = [];
+			}
+			$headers[] = $header;
+		}
+		$this->parseStatus($response, array_shift($headers));
+		$this->parseHeaders($response, $headers);
+		return $response;
+	}
+
+
+	private function parseStatus(Response $response, string $status): void
+	{
+		if (!preg_match('#^HTTP/([\d.]+) (\d+) (.+)$#', $status, $m)) {
+			throw new Nette\InvalidArgumentException("Invalid status line '$status'.");
+		}
+		$response->setProtocolVersion($m[1]);
+		$response->setCode((int) $m[2], $m[3]);
+	}
+
+
 	private function parseHeaders(Response $response, array $headers): void
 	{
 		foreach ($headers as $header) {

tests/Http/ResponseFactory.fromString.phpt

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+use Nette\Http;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+$factory = new Http\ResponseFactory;
+$response = $factory->fromString("HTTP/3.0 123 My Reason\r\nX-A: a\r\nX-A: b\r\n\r\nHello");
+
+Assert::same(123, $response->getCode());
+Assert::same('3.0', $response->getProtocolVersion());
+Assert::same('My Reason', $response->getReasonPhrase());
+
+Assert::same(['X-A' => ['a', 'b']], $response->getHeaders());
+
+Assert::same('Hello', $response->getBody());

tests/Http/ResponseFactory.fromUrl.phpt

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+use Nette\Http;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+$factory = new Http\ResponseFactory;
+$response = $factory->fromUrl('http://nette.org');
+
+Assert::same(200, $response->getCode());
+Assert::same('1.1', $response->getProtocolVersion());
+Assert::same('OK', $response->getReasonPhrase());
+Assert::same(['SAMEORIGIN'], $response->getHeaders()['X-Frame-Options']);
+Assert::contains('Nette Foundation', $response->getBody());