4get/resolver.php at master · Twint-Studio/4get · GitHub

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<?php

$resolver = new resolver();

class resolver{

	public const resolvers = [
		"sc"
	];

	public function __construct(){

		include "data/config.php";

		if(
			!isset($_GET["scraper"]) ||
			!is_string($_GET["scraper"]) ||
			!in_array($_GET["scraper"], self::resolvers)
		){

			$this->do400("Missing or invalid scraper");
			return;
		}

		if(
			!isset($_GET["target"]) ||
			!is_string($_GET["target"])
		){

			$this->do400("Missing or invalid target");
			return;
		}

		$scraper = $_GET["scraper"];
		$target = $_GET["target"];

		try{

			include "resolve/{$scraper}.php";
			$resolver = new $scraper();
			$link = $resolver->resolve($target);

			if(is_string($link)){

				header("Location: {$link}");
			}
		}catch(Exception $error){

			$this->do404("Fuck! Failed to resolve URL: " . $error->getMessage());
		}
	}

	public function do400($message){

		header("Content-Type: text/plain");
		http_response_code(400);
		echo $message;
	}

	public function do404($message){

		header("Content-Type: text/plain");
		http_response_code(404);
		echo $message;
	}
}