feat(http): added fetch class

Author: hejrobin

vendor/Haku/Http/Fetch.php

@@ -0,0 +1,89 @@
+<?php
+declare(strict_types=1);
+
+namespace Haku\Http;
+
+/* @note Deny direct file access */
+if (defined('HAKU_ROOT_PATH') === false) exit;
+
+use Haku\Http\Message\Json;
+
+class Fetch
+{
+	private $curl;
+
+	protected Headers $headers;
+
+	/**
+	 *	Prepares cURL
+	 */
+	public function __construct(
+		protected string $uri,
+		protected Method $method = Method::Get,
+		array $headers = []
+	) {
+		$this->headers = new Headers($headers);
+
+		$this->curl = curl_init($uri);
+
+		$this->setOptions([
+			CURLOPT_RETURNTRANSFER => true,
+			CURLOPT_HTTPHEADER => $this->headers->getAll(true)
+		]);
+	}
+
+	/**
+	 *	Sets a curl option.
+	 *
+	 *	@see https://www.php.net/manual/en/function.curl-setopt.php
+	 */
+	public function setOption(int $option, mixed $value): bool
+	{
+		return curl_setopt($this->curl, $option, $value);
+	}
+
+	/**
+	 *	Sets a curl options from array.
+	 *
+	 *	@see https://www.php.net/manual/en/function.curl-setopt-array.php
+	 */
+	public function setOptions(array $options): bool
+	{
+		return curl_setopt_array($this->curl, $options);
+	}
+
+	/**
+	 *	Makes a JSON request
+	 */
+	public function json(Json $payload = null): object
+	{
+		if (!$this->headers->has('Accept'))
+		{
+			$this->headers->set('Accept', 'application/json');
+		}
+
+		$this->headers->set('Content-Type', 'application/json');
+
+		if ($this->method === Method::Post && $payload !== null)
+		{
+			curl_setopt($this->curl, CURLOPT_POSTFIELDS, $payload->asRendered());
+		}
+
+		$response = curl_exec($this->curl);
+
+		curl_close($this->curl);
+
+		if (!json_validate($response))
+		{
+			throw new Exceptions\HttpException('Invalid JSON response.');
+		}
+
+		return json_decode($response);
+	}
+
+	public function close()
+	{
+		curl_close($this->curl);
+	}
+
+}

vendor/Haku/Http/Headers.php

@@ -203,11 +203,27 @@ public function remove(string $header): void
 		}
 	}
 
-	public function getAll(): array
+	/**
+	 *	Returns all headers as key value pairs, if $flatten is true array will be "key: value".
+	 */
+	public function getAll(bool $flatten = false): array
 	{
+		if ($flatten)
+		{
+			$headers = [];
+
+			foreach ($this->headers as $name => $value)
+			{
+				array_push($headers, "{$name}: {$value}");
+			}
+
+			return $headers;
+		}
+
 		return $this->headers;
 	}
 
+
 	/**
 	 *	Flushes *all* set headers of current instance.
 	 */